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01.12.2019 | Research | Ausgabe 1/2019 Open Access

Spatial analysis of traffic accidents based on WaveCluster and vehicle communication system data

The frequent occurrence of traffic accidents has always been an important problem troubling traffic safety management, so exploring the law and characteristics of case occurrence in a space area has profound significance for the prevention of …

Autoren:
Junhui Zhang, Tuo Shi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Bi-level route guidance method for large-scale urban road networks

This paper proposes a bi-level route guidance method based on macroscopic fundamental diagram (MFD) for urban road network, which is a combination of central route guidance and distributed route guidance and it considers the intentions of both …

Autoren:
Dan Wei, Zhaosheng Yang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Obstacle avoidance of mobile robots using modified artificial potential field algorithm

In recent years, topics related to robotics have become one of the researching fields. In the meantime, intelligent mobile robots have great acceptance, but the control and navigation of these devices are very difficult, and the lack of dealing …

Autoren:
Seyyed Mohammad Hosseini Rostami, Arun Kumar Sangaiah, Jin Wang, Xiaozhu Liu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On signal processing scheme based on network coding in relay-assisted D2D systems

Network coding (NC) can greatly improve a system’s performance on throughput and channel utilization via corresponding signal processing on the relay side. Implementation of NC in relay-assisted device-to-device (RA-D2D) communications is a …

Autoren:
Bo Li, Qiuming Zhao, Ruofei Ma, Hongjuan Yang, Gongliang Liu, Weidang Lu

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Methodology to Evaluate Fatigue Damage of High-Speed Train Welded Bogie Frames Based on On-Track Dynamic Stress Test Data

The current method of estimating the fatigue life of railway structures is to calculating the equivalent stress amplitude based on the measured stress data. However, the random of the measured data is not considered. In this paper, a new method …

Autoren:
Guangxue Yang, Meng Wang, Qiang Li, Ran Ding

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Effect of Heat Sink and Cooling Mediums on Ferrite Austenite Ratio and Distortion in Laser Welding of Duplex Stainless Steel 2205

In order to control the ferrite and austenite percentage in duplex stainless steel welding, many researchers try to change the laser welding parameters and cooling medium, but ignore to study the influence of heat sink effect on weld strength. In …

Autoren:
P. Dinesh Babu, P. Gouthaman, P. Marimuthu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Dealing with headquarters in the multinational corporation: a subsidiary perspective on organizing costs

This study examines how subsidiaries in multinational corporations (MNCs) experience interactions with corporate headquarters. We conceptualize such interactions in terms of organizing costs, focusing on two key types of costs: bargaining costs …

Autoren:
Randi Lunnan, Sverre Tomassen, Ulf Andersson, Gabriel R. G. Benito

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Control of Viscosity of Cementitious Materials Using Waste Limestone Powder

Ultra high performance cementitious materials possess high solid volume fraction by a decreased water-to-binder ratio. The use of a high-range water reducing admixture allowed us to obtain the initial fluidity of ultra-high performance …

Autoren:
Dongyeop Han, Jin Young Yoon, Jae Hong Kim

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Large-scale and high-resolution analysis of food purchases and health outcomes

To complement traditional dietary surveys, which are costly and of limited scale, researchers have resorted to digital data to infer the impact of eating habits on people’s health. However, online studies are limited in resolution: they are …

Autoren:
Luca Maria Aiello, Rossano Schifanella, Daniele Quercia, Lucia Del Prete

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Multi-objective routing aware of mixed IoT traffic for low-cost wireless Backhauls

The futuristic wireless networks expects to provide adequate support for distinct kind of applications, their diverse requirements, and scenarios for future Internet systems, such as Internet of Things based on multimedia and sensor data, while …

Autoren:
Vinícius N. Medeiros, Bruno Silvestre, Vinicius C. M. Borges

01.12.2019 | Original Article | Ausgabe 1/2019

Why some people do not use Facebook?

Facebook is the most pervasive social network in the world. While, we would commonly expect everyone who has access to the Internet to use Facebook, some people have chosen not to join or to opt-out of its services. This qualitative study is an …

Autoren:
Anas Aloudat, Ons Al-Shamaileh, Katina Michael

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Station green lighting system based on sensor network

Aiming at the problems of high energy consumption, chaotic lines, and inconsistent lighting sources in many stations, this paper presents a simple, reliable, and convenient station green lighting system based on sensor network. According to the …

Autoren:
Min Wang, Zhongbo Wu, Hang Qin

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Centrality in modular networks

Identifying influential nodes in a network is a fundamental issue due to its wide applications, such as accelerating information diffusion or halting virus spreading. Many measures based on the network topology have emerged over the years to …

Autoren:
Zakariya Ghalmane, Mohammed El Hassouni, Chantal Cherifi, Hocine Cherifi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Efficient energy resource utilization in a wireless sensor system for monitoring water quality

In this paper, a new approach to energy harvesting and data transmission optimization in a heterogeneous-based multi-class and multiple resource wireless transmission wireless sensor network system that focus on monitoring water and its quality is …

Autoren:
Segun O. Olatinwo, Trudi H. Joubert

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Safety assessment of Czech motorways and national roads

Czech motorways and national roads constitute the primary road network. As one of the densest road networks in Europe, it carries the highest portion of traffic and connects the most important destinations in the Czech Republic [ 70 ]. This is …

Autoren:
Jiří Ambros, Richard Turek, Milan Brich, Jan Kubeček

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Optimal deployment of components of cloud-hosted application for guaranteeing multitenancy isolation

One of the challenges of deploying multitenant cloud-hosted services that are designed to use (or be integrated with) several components is how to implement the required degree of isolation between the components when there is a change in the …

Autoren:
Laud Charles Ochei, Andrei Petrovski, Julian M. Bass

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Budget deficit and inflation nexus in Uganda 1980–2016: a cointegration and error correction modeling approach

One of the principal goals of monetary policy pursued by Central Banks virtually in the entire world is price stability (Ekanayake 2013 ). Understanding inflationary dispositions and its determinants is therefore a critical issue and attracts …

Autoren:
Kurayish Ssebulime, Bbaale Edward

01.12.2019 | Methodology | Ausgabe 1/2019 Open Access

Application of variable selection and dimension reduction on predictors of MSE’s development

Nature create variables using its character component, and variables are sharing characters from a vary small to relatively large scale. This results, variables to have from a vary different to a more similar character, and leads to have a …

Autor:
Habtamu Tilaye Wubetie

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Numerical Simulation and Experimental Research on Microstructural Evolution During Compact Hot Extrusion of Heavy Caliber Thick-Wall Pipe

Compact hot extrusion (CHE) process of heavy caliber thick-wall pipe is a new material-saving production process. In order to reveal the optimum hot extrusion parameters in CHE process, the effects of the extrusion parameters on the …

Autoren:
Lu Jia, Yongtang Li, Tianjing Hui, Yang Zhang

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Corporate payments networks and credit risk rating

Aggregate and systemic risk in complex systems are emergent phenomena depending on two properties: the idiosyncratic risk of the elements and the topology of the network of interactions among them. While a significant attention has been given to …

Autoren:
Elisa Letizia, Fabrizio Lillo

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Trust-based recommendation systems in Internet of Things: a systematic literature review

Internet of Things (IoT) creates a world where smart objects and services interacting autonomously. Taking into account the dynamic-heterogeneous characteristic of interconnected devices in IoT, demand for a trust model to guarantee security …

Autoren:
Venus Mohammadi, Amir Masoud Rahmani, Aso Mohammed Darwesh, Amir Sahafi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Investigating the adoption of big data analytics in healthcare: the moderating role of resistance to change

Big data analytics is gaining substantial attention due to its innovative contribution to decision making and strategic development across the healthcare field. Therefore, this study explored the adoption mechanism of big data analytics in …

Autoren:
Muhammad Shahbaz, Changyuan Gao, LiLi Zhai, Fakhar Shahzad, Yanling Hu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Frequency estimation and tracking by two-layered iterative DFT with re-sampling in non-steady states of power system

Frequency deviation off the nominal one is incurred by sudden changes of frequency and could introduce harmonics and inter-harmonics in the power system, which influences the accuracy of frequency estimation with method of discrete Fourier …

Autor:
Hui Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Data cleansing method of talent management data in wireless sensor network based on data mining technology

Data mining technology is a very common computer technology, which has been widely used in many fields because of its superior performance. The method of talent management data cleaning in wireless sensor networks is studied based on data mining …

Autor:
Yanli Bai

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Exploring reasons for the weekend effect in a hospital emergency department: an information processing perspective

This study examines fits and misfits between information processing requirements and capacities in a hospital emergency department in order to identify possible explanations for the “weekend effect.” Previous research has shown that acute patients …

Autor:
Iben Duvald

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Effect of entrepreneurial networks on small firm performance in Kamrup, a district of Assam

The study is an attempt to examine the potential impact of entrepreneurial networks on small firm performance with the help of primary data. Dimensions of entrepreneurial networks used in this study are network structure (size, density and …

Autoren:
Mandakini Das, Nivedita Goswami

01.12.2019 | Research | Ausgabe 1/2019 Open Access

IoT + AR: pervasive and augmented environments for “Digi-log” shopping experience

The current bare Internet of Things (IoT) infrastructure has recently been extended to include smarter and more effective user interactions. Individual or meaningful sets and groups of IoT objects can be imbued with data and/or content in a …

Autoren:
Dongsik Jo, Gerard Jounghyun Kim

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Multifunctional agriculture: an approach for entrepreneurship development of agricultural sector

The purpose of this paper is to compare and analyze agricultural transition periods in order to provide a new framework for agricultural development in Iran. Considering the foreseeable future, an innovative or knowledge-based economy will …

Autoren:
Somayeh Tohidyan Far, Kurosh Rezaei-Moghaddam

01.12.2019 | Research Article | Ausgabe 1/2019 Open Access

Stable haptic feedback generation for mid-air gesture interactions: a hidden Markov model-based motion synthesis approach

Generation of stable and realistic haptic feedback during mid-air gesture interactions have recently garnered significant research interest. However, the limitations of the sensing technologies such as unstable tracking, range limitations …

Autoren:
Dennis Babu, Masashi Konyo, Hikaru Nagano, Ryunosuke Hamada, Satoshi Tadokoro

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Design of Micro-strip Symmetrical Dual-band Filter Based on Wireless Sensor Network Nodes

The micro-strip antenna filter design of wireless sensor network nodes is usually used to improve the out-of-band suppression and frequency selectivity by increasing the order of the filters, but the filters are usually single band, not only the …

Autoren:
Wenbo Cheng, Kai Deng, Wei Cheng

01.12.2019 | Research Article | Ausgabe 1/2019 Open Access

Simple noninterference mechanism between the pitch and yaw axes for a wrist mechanism to be employed in robot-assisted laparoscopic surgery

Laparoscopic surgery, which is also called minimally invasive surgery, is a surgical technique that is associated with accelerated post-operative recovery. However, it can only be performed by surgeons possessing advanced surgical skills. One of …

Autor:
Makoto Jinno

01.12.2019 | Original Article | Ausgabe 1/2019

Joint inference of user community and interest patterns in social interaction networks

Online social media have become an integral part of our social beings. Analyzing conversations in social media platforms can lead to complex probabilistic models to understand social interaction networks. In this paper, we present a modeling …

Autoren:
Arif Mohaimin Sadri, Samiul Hasan, Satish V. Ukkusuri

01.12.2019 | Survey paper | Ausgabe 1/2019 Open Access

On the sustainability of smart and smarter cities in the era of big data: an interdisciplinary and transdisciplinary literature review

There has recently been a conscious push for cities across the globe to be smart and even smarter and thus more sustainable by developing and implementing big data technologies and their applications across various urban domains in the hopes of …

Autor:
Simon Elias Bibri

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Antenna array design by a contraction adaptive particle swarm optimization algorithm

Massive multiple input multiple output (MIMO) has drawn intensive attention of researchers for solving huge data transmissions in the fifth generation wireless communication. Antennas aligning in array bring in advantages for interference …

Autoren:
Xin Zhang, Dunqiang Lu, Xiu Zhang, Yue Wang

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Hierarchical Optimization of Landing Performance for Lander with Adaptive Landing Gear

A parameterized dynamics analysis model of legged lander with adaptive landing gear was established. Based on the analysis model, the landing performances under various landing conditions were analyzed by the optimized Latin hypercube experimental …

Autoren:
Zongmao Ding, Hongyu Wu, Chunjie Wang, Jianzhong Ding

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Path planning of mobile robot based on multi-sensor information fusion

Mobile robot is a very important branch of robotics. In practice, the performance of mobile robot is required to be higher and higher. It is required that mobile robot can adapt to different complex environments through its own intelligent system …

Autor:
Ruixia Xu

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

A Novel Integrated Stability Control Based on Differential Braking and Active Steering for Four-axle Trucks

Differential braking and active steering have already been integrated to overcome their shortcomings. However, existing research mainly focuses on two-axle vehicles and controllers are mostly designed to use one control method to improve the …

Autoren:
Buyang Zhang, Changfu Zong, Guoying Chen, Yanjun Huang, Ting Xu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Thermal and Mechanical Behaviors of Concrete with Incorporation of Strontium-Based Phase Change Material (PCM)

In this study, phase change material (PCM) was used to control the heat of hydration of mass concrete, and the study aimed to evaluate the resulting fundamental and thermal properties of mass concrete with PCM. To evaluate the feasibility of …

Autoren:
Hyun-Do Yun, Kyung-Lim Ahn, Seok-Joon Jang, Bae-Su Khil, Wan-Shin Park, Sun-Woo Kim

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Evaluation on Protection Performance and On-Site Applicability of Hybrid Fiber-Reinforced Concrete

The aim of this research is to evaluate the protecting performance of hybrid fiber-reinforced concrete against lateral forces such as explosives or flying objects. The objective of this research is to better prepare this concrete for use in the …

Autoren:
Dongyeop Han, Yong-Jun Park, Min-Cheol Han, Seong-Tae Yi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

The role of small- and medium-sized enterprises in the Dutch economy: an analysis using an extended supply and use table

Firm size is increasingly acknowledged as an important factor for (macro-)economic policy. It is known that the overall importance of small- and medium-sized enterprises (SMEs) is different relative to large multinationals in terms of their impact …

Autoren:
Stephen Chong, Rutger Hoekstra, Oscar Lemmers, Ilke Van Beveren, Marcel Van Den Berg, Ron Van Der Wal, Piet Verbiest

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Indoor location method of interference source based on deep learning of spectrum fingerprint features in Smart Cyber-Physical systems

The intensity acquisition and fluctuation of the signal intensity of the interference source caused by the indoor multipath effect are very great, and there is a problem that the best eigenvalue is difficult to choose. A kind of unsupervised …

Autoren:
Yunfei Chen, Taihang Du, Chundong Jiang, Shuguang Sun

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Quad-mode dual-band bandpass filter based on a stub-loaded circular resonator

In this paper, a quad-mode dual-band bandpass filter (BPF) only using a stub-loaded circular resonator is presented. The odd- and even-mode resonant frequencies can be easily computed and flexibly controlled by the radius of the circle and the two …

Autoren:
Minghui Liu, Zheng Xiang, Peng Ren, Tongtong Xu

01.12.2019 | Research Paper | Ausgabe 1/2019 Open Access

Attacking convolutional neural network using differential evolution

The output of convolutional neural networks (CNNs) has been shown to be discontinuous which can make the CNN image classifier vulnerable to small well-tuned artificial perturbation. That is, images modified by conducting such alteration (i.e. …

Autoren:
Jiawei Su, Danilo Vasconcellos Vargas, Kouichi Sakurai

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Selecting a representative decision tree from an ensemble of decision-tree models for fast big data classification

The goal of this paper is to reduce the classification (inference) complexity of tree ensembles by choosing a single representative model out of ensemble of multiple decision-tree models. We compute the similarity between different models in the …

Autoren:
Abraham Itzhak Weinberg, Mark Last

01.12.2019 | Original Article | Ausgabe 1/2019

Network-aware privacy risk estimation in online social networks

Online social networks expose their users to privacy leakage risks. To measure the risk, privacy scores can be computed to quantify the users’ profile exposure according to their privacy preferences or attitude. However, user privacy can be also …

Autoren:
Ruggero G. Pensa, Gianpiero Di Blasi, Livio Bioglio

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On muting mobile terminals for uplink interference mitigation in HetNets—system-level analysis via stochastic geometry

We investigate the performance of a scheduling algorithm where the mobile terminals (MTs) may be turned off if they cause a level of interference greater than a given threshold. This approach, which is referred to as interference aware muting …

Autoren:
Francisco Javier Martín, Xiaojun Xi, Marco Di Renzo, Mari Carmen Aguayo-Torres, Gerardo Gomez

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Responsible team players wanted: an analysis of soft skill requirements in job advertisements

During the past decades the importance of soft skills for labour market outcomes has grown substantially. This carries implications for labour market inequality, since previous research shows that soft skills are not valued equally across race and …

Autoren:
Federica Calanca, Luiza Sayfullina, Lara Minkus, Claudia Wagner, Eric Malmi

01.12.2019 | Original Article | Ausgabe 1/2019

Regional patterning of co-expressed genes in autistic brains

Autism spectrum disorders (ASDs) are a family of neurodevelopmental disorders that affect different regions of the brain. Therefore, knowing which part of the brain is severely affected by ASDs needs to be more clear. Moreover, transcriptome data …

Autor:
Fereshteh Izadi

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Indirect Adaptive Robust Trajectory Tracking Control of Hard Rock TBM with Load Variation of Tunneling Face

Posture adjustment of open-type hard rock tunnel boring machine (TBM) can be achieved by properly adjusting the hydraulic pressure of gripper cylinder and torque cylinders. However, the time-varying inhomogeneous load acting on tunneling face of …

Autoren:
Chengjun Shao, Jianfeng Liao, Zhitao Liu, Hongye Su

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Authentication of satellite navigation signals by wiretap coding and artificial noise

In order to combat the spoofing of global navigation satellite system (GNSS) signals, we propose a novel signal authentication method based on information-theoretic security. In particular, the satellite superimposes to the navigation signal an …

Autoren:
Francesco Formaggio, Stefano Tomasin

01.12.2019 | Technical Paper | Ausgabe 1/2019

GIS-based comparative study of information value and frequency ratio method for landslide hazard zonation in a part of mid-Himalaya in Himachal Pradesh

The road network of a developing country plays a vital role in its overall development. It is therefore important to ascertain landslide hazard assessment along a road network. Landslide hazard zonation focuses on preparing landslide hazard map by …

Autoren:
Akhilesh Kumar, Ravi Kumar Sharma, Vijay Kumar Bansal

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Entrepreneurial education and students' entrepreneurial intention: does team cooperation matter?

This study aims to provide a better understanding of why and how entrepreneurial education increases the inclination to start-up. The study investigates the moderating role of team cooperation on the effect of entrepreneurial education on …

Autoren:
Luyu Li, Dandan Wu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Reflection probability in wireless networks with metasurface-coated environmental objects: an approach based on random spatial processes

An emerging and promising vision of wireless networks consists of coating the environmental objects with reconfigurable metasurfaces that are capable of modifying the radio waves impinging upon them according to the generalized law of reflection.

Autoren:
Marco Di Renzo, Jian Song

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

An Iterative Compensation Algorithm for Springback Control in Plane Deformation and Its Application

In order to solve the springback problem in sheet metal forming, the trial and error method is a widely used method in the factory, which is time-consuming and costly for its non-direction and non-quantitative. Finite element simulation is an …

Autoren:
Rui Ma, Chunge Wang, Ruixue Zhai, Jun Zhao

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Experimental and Analytical Investigation of the Fatigue Flexural Behavior of Corroded Reinforced Concrete Beams

The fatigue flexural behavior of corroded reinforced concrete (RC) beams was experimentally and analytically examined. Seven beams were constructed and tested, and an analytical fatigue prediction model (FPM) was proposed to assess the fatigue …

Autoren:
Li Song, Zhiwei Fan, Jian Hou

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Force Analysis and Curve Design for Laying Pipe in Loop Laying Head of Wire Rod Mills

Laying head is a high-precision engineering device in hot-rolled high speed wire rod production line. Previously research works are focused on the laying pipe wear-resisting. Laying pipe curve design method based on wire rod kinematics and …

Autoren:
Shuangji Yao, Marco Ceccarelli, Giuseppe Carbone, Bin Ma

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Characterization of Passive Films Formed on As-received and Sensitized AISI 304 Stainless Steel

The current research of corrosion resistance of stainless steels mainly focuses on characterization of the passive films by point defect mode and mixed-conduction model. The corrosion resistance of the passive films formed on as-received and …

Autoren:
Yubo Zhang, Hongyun Luo, Qunpeng Zhong, Honghui Yu, Jinlong Lv

01.12.2019 | Case Study | Ausgabe 1/2019 Open Access

Navigating in a Hierarchy: How Middle Managers Adapt Macro Design

With the emergence of new organizational forms promoting de-layering, downscoping, and self-management, middle managers have been under attack in recent years. Organizational design has traditionally been concerned with how top management designs …

Autor:
Marianne Livijn

01.12.2019 | Original Article | Ausgabe 1/2019

Using network motifs to characterize temporal network evolution leading to diffusion inhibition

Network motifs are patterns of over-represented node interactions in a network which have been previously used as building blocks to understand various aspects of the social networks. In this paper, we use motif patterns to characterize the …

Autoren:
Soumajyoti Sarkar, Ruocheng Guo, Paulo Shakarian

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Comparing the speed and accuracy of approaches to betweenness centrality approximation

Many centrality measures exist, utilizing both local and global information for quantifying the importance of a node in a network. Local measures such as degree and closeness centrality can be computed in linear time [ 1 ], but are limited in their …

Autoren:
John Matta, Gunes Ercal, Koushik Sinha

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Development and Analysis of the Magnetic Circuit on Double-Radial Permanent Magnet and Salient-Pole Electromagnetic Hybrid Excitation Generator for Vehicles

With the improvement of vehicles electrical equipment, the existing silicon rectification generator and permanent magnet generator cannot meet the requirement of the electric power consumption of the modern vehicles electrical equipment. It is …

Autoren:
Xueyi Zhang, Qinjun Du, Jinbin Xu, Yuzhen Zhao, Shilun Ma

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Mapping individual behavior in financial markets: synchronization and anticipation

In this paper we develop a methodology, based on Mutual Information and Transfer of Entropy, that allows to identify, quantify and map on a network the synchronization and anticipation relationships between financial traders. We apply this …

Autoren:
Mario Gutiérrez-Roig, Javier Borge-Holthoefer, Alex Arenas, Josep Perelló

01.12.2019 | Theoretical article | Ausgabe 1/2019 Open Access

The quality management ecosystem for predictive maintenance in the Industry 4.0 era

The Industry 4.0 era requires new quality management systems due to the ever increasing complexity of the global business environment and the advent of advanced digital technologies. This study presents new ideas for predictive quality management …

Autoren:
Sang M. Lee, DonHee Lee, Youn Sung Kim

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Psychology and morality of political extremists: evidence from Twitter language analysis of alt-right and Antifa

The recent rise of the political extremism in Western countries has spurred renewed interest in the psychological and moral appeal of political extremism. Empirical support for the psychological explanation using surveys has been limited by lack …

Autoren:
Meysam Alizadeh, Ingmar Weber, Claudio Cioffi-Revilla, Santo Fortunato, Michael Macy

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Whole cycle disruption analysis of petroleum supply chain (PSC) based on UASNs monitoring

This paper proposes a whole cycle analysis method of supply chain disruption based on underwater acoustic sensor networks (UASNs). Firstly, the UASNs are deployed to monitor offshore disruptions (such as oil leakage), and the monitoring data of …

Autoren:
Hui Hu, Keqi Chen, Jing He, Lingbo Du

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Multi-sensing based target tracking by using decision-making strategy with spatial and temporal properties

Multi-sensing system for target tracking has been addressed by many researchers from different fields. In this work, a multi-sensing system within the time, space, and frequency domains is first described. The system development is based on sensor …

Autoren:
Liu Yang, Liu Xiuju, Jin Huixia, Fu Yuanyuan, Zhang Chi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Structural equation modeling: an application of broadband penetration and GDP growth in Asia

In the present era of globalization, broadband penetration which indicates access to high-speed internet has allowed the transferring of information in a way that was never observed before. With the growing world-wide investment and attention …

Autoren:
Tasneem Fatima Alam, Nayeem Sultana, Md. Israt Rayhan

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Reciprocity and impact in academic careers

The growing importance of citation-based bibliometric indicators in shaping the prospects of academic careers incentivizes scientists to boost the numbers of citations they receive. Whereas the exploitation of self-citations has been extensively …

Autoren:
Weihua Li, Tomaso Aste, Fabio Caccioli, Giacomo Livan

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Community-based time segmentation from network snapshots

Streaming and holistic approaches for semi-static and dynamic nodesets

Community detection has proved to be extremely successful in a variety of domains. However, most of the algorithms used in practice assume networks are unchanging in time. This assumption is violated for many datasets, resulting in incorrect or …

Autoren:
Thomas Magelinski, Kathleen M. Carley

01.12.2019 | Case Study | Ausgabe 1/2019 Open Access

Curating creative communities of practice: the role of ambiguity

Communities of Practice (CoPs), it is argued, are loci for creativity, innovation and problem-solving. Instigating a CoP and harnessing this creative energy from an external position (be it institutional or individual) is, however, problematic.

Autor:
Michael Kaethler

01.12.2019 | Research article | Ausgabe 1/2019 Open Access

Investigating self-directed learning and technology readiness in blending learning environment

Blended Learning (BL) creates a ‘rich’ educational environment with multiple technology-enabled communication forms in both face-to-face and online teaching. Students’ characteristics are closely related to the learning effectiveness in the BL …

Autoren:
Shuang Geng, Kris M. Y. Law, Ben Niu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Toward a telepresence robot empowered smart lab

In the context of distance education, lab and field work are a considerable challenge for students, professors, and institutions. This paper presents a Telepresence Robot Empowered Smart Lab (TRESL) system as a new and emerging technology with a …

Autoren:
Qing Tan, Marc Denojean-Mairet, Hongxue Wang, Xiaokun Zhang, Frédérique C. Pivot, Roland Treu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Effective and scalable methods for graph protection strategies against epidemics on dynamic networks

Dynamic networks are networks with temporal relationship features which evolve over time by the inclusion and deletion of nodes and edges. Suppressing the epidemic spreading in such networks is quite challenging. The problem of protecting a …

Autoren:
Arie Wahyu Wijayanto, Tsuyoshi Murata

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Functional and transcriptional connectivity of communities in breast cancer co-expression networks

Transcriptional co-expression networks represent the concerted gene regulation programs by means of statistical inference of co-expression patterns. The rich phenomenology of transcriptional processes behind complex phenotypes such as cancer, is …

Autoren:
Guillermo de Anda-Jáuregui, Sergio Antonio Alcalá-Corona, Jesús Espinal-Enríquez, Enrique Hernández-Lemus

01.12.2019 | Original Article | Ausgabe 1/2019 Open Access

Multinational companies: can they foster well-being in the eyes of the poor? Results from an empirical case study

Corporate Social Responsibility (CSR) is supposed to benefit corporations but as well to foster the well-being of individuals, communities and society. However, there is still a lack of reliable evaluation results of CSR’s effectiveness and …

Autoren:
Harald Strotmann, Jürgen Volkert, Melinda Schmidt

01.09.2019 | Original Paper | Ausgabe 3/2019

Rheological Properties of Liquids Under Conditions of Elastohydrodynamic Lubrication

There is an ongoing debate concerning the best rheological model for liquid flows in elastohydrodynamic lubrication (EHL). Due to the small contact area and high relative velocities of bounding solids, the lubricant experiences pressures in excess …

Autoren:
Vikram Jadhao, Mark O. Robbins

01.07.2019 | Ausgabe 7/2019

CNOT gate on reverse photon modes in a ring cavity

Photon modes of the reverse rotation in a ring QED cavity coupled with a single atom are considered. By applying the Schrieffer–Wolf transformation for the off-resonant light–atom interaction, an effective Hamiltonian of the photon modes evolution …

Autoren:
Sergey N. Andrianov, Narkis M. Arslanov, Konstantin I. Gerasimov, Alexander A. Kalinkin, Sergey A. Moiseev

01.07.2019 | Ausgabe 7/2019

The study of interference effect in a globally coupled quantum network

We investigate the quantum interference effect in a globally coupled quantum network that is composed of N lowly dissipative optical cavities and a highly dissipative cavity. After effectively eliminating the highly dissipative mode, we obtain the …

Autoren:
Ye-Xiong Zeng, Jian Shen, Tesfay Gebremariam, Chong Li

01.07.2019 | Schwerpunkt | Ausgabe 7/2019

Die Lücke: Informationssicherheit in Systemen mit künstlicher Intelligenz

Wie Algorithmen und künstliche Intelligenz zur Gefahr für die IT-Sicherheit werden

Alle bekannten Maßnahmen und Methoden für die IT-Sicherheit beruhen auf der Definition eines Soll-Zustandes, der Kontrolle des Ist-Zustandes und dem gezielten, korrigierenden Eingriff. Aber dies sind nicht die einzigen Annahmen für eine …

Autoren:
Prof. Dr. Eberhard von Faber, Arndt Kohler

01.07.2019 | Schwerpunkt | Ausgabe 7/2019

Kriterien: Wie Security auch für Safety verantwortlich wird

Safety-Inseln im Security-Komplex

Nahe Fukushima schien ein Atomkraftwerk seiner wesentlichsten Safety-Aufgabe nicht gerecht geworden zu sein: Durch die explodierenden Druckbehälter wurden Tausende strahlengeschädigt, die Umgebung ist für Jahrzehnte unbewohnbar geworden. Und wenn …

Autoren:
Dr. Ivo Keller, Prof. Dr. Friedrich-L. Holl

12.06.2019

The self-financing equation in limit order book markets

The goal of this paper is to present a mathematical framework for trading on a limit order book, including its associated transaction costs, and to propose continuous-time equations which generalise the self-financing relationships of frictionless …

Autoren:
René Carmona, Kevin Webster

12.06.2019

Conceptual model for informing user with innovative smart wearable device in industry 4.0

The everyday needs of people with disabilities represent a challenge in designing new and innovative services. The capabilities provided by modern communication technologies designed by assistive technology models can help people with disabilities …

Autoren:
Marko Periša, Tibor Mijo Kuljanić, Ivan Cvitić, Peter Kolarovszki

12.06.2019 | Original Paper

It’s About Distributing Rather than Sharing: Using Labor Process Theory to Probe the “Sharing” Economy

The sharing economy has been examined from many angles, including the engagement of customers, the capabilities of the technological platforms, and the experiences of those who sell products or services. We focus on labor in the sharing economy.

Autoren:
Sunyu Chai, Maureen A. Scully

12.06.2019

Further Evidence of Within-Marriage Fertility Control in Pre-Transitional England

The identification of parity effects on the hazard of a next birth in cross-family data requires accounting for heterogeneity in fecundity across couples. In a previously published article, Cinnirella et al. Demography, 54, 413–436 (2017), we …

Autoren:
Francesco Cinnirella, Marc Klemp, Jacob Weisdorf

12.06.2019 | Original Paper: Sol-gel and hybrid materials for optical, photonic and optoelectronic applications

Application of Taguchi method to optimize the sol–gel dip-coating process of the semiconductor Cu2ZnSnS4 with good optical properties

This paper presents the optimal configuration of parameters for the elaborated Cu2ZnSnS4 (CZTS) absorber layer, using the sol–gel method associated with dip-coating technique on ordinary glass substrates. Taguchi design of experiments with L27 …

Autoren:
Ahmed Ziti, Bouchaib Hartiti, Hicham Labrim, Salah Fadili, Mounia Tahri, Amine Belafhaili, Abderraouf Ridah, Philippe Thevenin

12.06.2019 | Research Article Open Access

The Role of Non-market Strategies in Establishing Legitimacy: The Case of Service MNEs in Emerging Economies

In this article, we examine the mechanisms of the corporate political activities of service multinational enterprises (SMNEs) operating in an emerging economy. Reporting the findings of qualitative interviews with key decision-makers in Ukraine …

Autoren:
Peter Rodgers, Peter Stokes, Shlomo Tarba, Zaheer Khan

12.06.2019 | Symposium: New Measures, New Ideas

Society Caught in a Labyrinth of Algorithms: Disputes, Promises, and Limitations of the New Order of Things

We are in the interim of the massive expansion of the new and fundamental technology, which is represented by the advanced algorithms of AI. No one knows the real potential of machine learning and AI. Letting the algorithms drive autonomous …

Autor:
Tomas Hauer

12.06.2019 | Production Process

Improvement of sheet metal formability by local work-hardening with punch indentation

To improve the formability in stamping, a blank was locally work-hardened by indentation with a punch. Local strength expressed as a product of flow stress and thickness is increased up to a certain punch stroke by indentation, because the …

Autoren:
Yohei Abe, Ken-ichiro Mori, Tomoyoshi Maeno, Sho Ishihara, Yuki Kato

12.06.2019

Microstructure and Tensile Properties of Ferritic Lightweight Steel Produced by Twin-Roll Casting

There has been growing demand in automotive industries for advanced lightweight steels with higher specific strength and good ductility in order to reduce the overall weight of vehicles as well as improve their safety. Reducing the vehicle weight …

Autoren:
Yunik Kwon, Ji Hyun Hwang, Hee Chae Choi, T. T. T. Trang, Byoungkoo Kim, A. Zargaran, Nack J. Kim

12.06.2019

Quasi-Seeding Mechanism in Lamellae Alignment of TiAl Alloys During Directional Solidification

A novel quasi-seeding mechanism, in which the seed material needs to meet the following two requirements, was developed to align the lamellar microstructures of TiAl alloys during directional solidification. First, by controlling solidification …

Autoren:
Yujun Du, Jun Shen, Yilong Xiong, Qiudong Li, Hengzhi Fu

12.06.2019

A Predictive Analytics-Based Decision Support System for Drug Courts

This study employs predictive analytics to develop a decision support system for the prediction of recidivism in drug courts. Based on the input from subject matter experts, recidivism is defined as the violation of the treatment program …

Autoren:
Hamed M. Zolbanin, Dursun Delen, Durand Crosby, David Wright

12.06.2019

Time Series Forecasting Using Neural Networks: Are Recurrent Connections Necessary?

Artificial neural networks (NNs) are widely used in modeling and forecasting time series. Since most practical time series are non-stationary, NN forecasters are often implemented using recurrent/delayed connections to handle the temporal …

Autoren:
Salihu A. Abdulkarim, Andries P. Engelbrecht

12.06.2019

Inkjet printed graphene as an interconnect for optoelectronic devices

A comparative study of inkjet-printed graphene films (IPGFs) with mechanically exfoliated, highly crystalline graphene platelets have been conducted. Inkjet-printed graphene films were obtained using liquid-phase exfoliation of bulk graphite …

Autoren:
Jay A. Desai, Srishti Chugh, Monica Michel, Anupama B. Kaul

12.06.2019

Effects of laser pulse energy on the structural, optical and electrical properties of pulsed laser deposited Ga-doped ZnO thin films

Transparent conducting Ga-doped ZnO (GZO) thin films were deposited on glass substrate by pulsed laser deposition (PLD). The effects of laser pulse energy ranging from 80 to 200 mJ on microstructural, surface morphology, electrical and optical …

Autoren:
Guankong Mo, Zimei Tang, Huan He, Jiahui Liu, Yuechun Fu, Xiaoming Shen

12.06.2019 | Original Paper

Mandatory Non-financial Disclosure and Its Influence on CSR: An International Comparison

The article examines the effects of non-financial disclosure (NFD) on corporate social responsibility (CSR). We conceptualise trade-offs between two ideal types (government regulation and business self-regulation) in relation to CSR. Whereas …

Autoren:
Gregory Jackson, Julia Bartosch, Emma Avetisyan, Daniel Kinderman, Jette Steen Knudsen

12.06.2019 | Original Paper

Managing Algorithmic Accountability: Balancing Reputational Concerns, Engagement Strategies, and the Potential of Rational Discourse

While organizations today make extensive use of complex algorithms, the notion of algorithmic accountability remains an elusive ideal due to the opacity and fluidity of algorithms. In this article, we develop a framework for managing algorithmic …

Autoren:
Alexander Buhmann, Johannes Paßmann, Christian Fieseler

12.06.2019

From Minicrypt to Obfustopia via Private-Key Functional Encryption

Private-key functional encryption enables fine-grained access to symmetrically encrypted data. Although private-key functional encryption (supporting an unbounded number of keys and ciphertexts) seems significantly weaker than its public-key …

Autoren:
Ilan Komargodski, Gil Segev

11.06.2019 | Original Paper

Developing a reference model for human–robot interaction

The use of collaborative robots is on the rise for human-centered automation for developing flexible production systems. The deployment of collaborative robots and distribution of tasks between human and robot carries several challenges. One …

Autoren:
Ali Ahmad Malik, Arne Bilberg

11.06.2019 | Aufsätze

Party institutionalization as multilevel concept: base- versus elite-level routinization

This article adds to the refinement of the concept of party institutionalization by focusing on its multilevel character, capturing possible variation between the institutionalization of the party elite and a party’s base. Hence, we argue that …

Autoren:
Prof. Nicole Bolleyer, Dr. Saskia P. Ruth-Lovell

11.06.2019

Investigation on the Creep Behavior of AZ91 Magnesium Alloy Processed by Severe Plastic Deformation

Magnesium alloys are widely used in various industries and engineering applications. Their special properties including high specific strength and low density make them attractive to industries such as automobile, aircraft, and electronics [ 1 – 5 …

Autoren:
Iraj Khoubrou, Bahram Nami, Seyyed Mehdi Miresmaeili

11.06.2019 Open Access

On Investigations of the Optical Absorption Coefficient of Gold and Germanium Implanted Silicon with the Use of the Non-destructive Contactless Photo Thermal Infrared Radiometry

In this paper results of investigations of Au2+ and Ge+ ion-implanted silicon samples with the use of the nondestructive frequency and the space domain photo thermal infrared radiometry (PTR) method are presented. Frequency amplitude …

Autoren:
Ł. Chrobak, M. Maliński

11.06.2019

Visible-Light Photocatalysts of ZrO2/AgCl:Eu3+ Nanoparticles

This paper reports the visible-light photocatalysts and luminescence quenching of ZrO2/AgCl:Eu3+ nanoparticles synthesized by the co-precipitation method as a function of AgCl concentration. XRD analysis indicated the presence of crystalline …

Autoren:
Pham van Huan, Phuong Dinh Tam, Vuong-Hung Pham

11.06.2019 | ORIGINAL ARTICLE

Research on the drilling micromechanical properties of TiBW/TC4 composites based on drilling force and temperature analysis

TiB whisker-reinforced TiBW/TC4 composites are widely used in the aviation, aerospace, automobile, and various other industries. However, the drilling force and temperature affect a lot on the drilling micromechanical properties of TiBW/TC4 …

Autoren:
Binghui Jia, Yong Feng, Xiaoyu Wang, Min Zhang, Zihao Zhu

11.06.2019 | Original

Dynamics and motion control of a capsule robot with an opposing spring

Non-classical locomotion systems have the perspective for a wide application in the vast fields of bio-medical and maintenance technology. Capsule bots are small, simple, and reliable realizations with a great potential for practical application.

Autoren:
Armen Nunuparov, Felix Becker, Nikolay Bolotnik, Igor Zeidis, Klaus Zimmermann

11.06.2019 Open Access

Do Children Carry the Weight of Divorce?

Relatively few studies have examined the physical health of children who experience parental separation. The few studies on this topic have largely focused on the United States and have used cross-sectional designs. Our study investigates the …

Autoren:
Alice Goisis, Berkay Özcan, Philippe Van Kerm

11.06.2019 | Research Article

An ERP-based BCI with peripheral stimuli: validation with ALS patients

Many studies reported that ERP-based BCIs can provide communication for some people with amyotrophic lateral sclerosis (ALS). ERP-based BCIs often present characters within a matrix that occupies the center of the visual field. However, several …

Autoren:
Yangyang Miao, Erwei Yin, Brendan Z. Allison, Yu Zhang, Yan Chen, Yi Dong, Xingyu Wang, Dewen Hu, Andrzej Chchocki, Jing Jin

11.06.2019 | Original Paper

Team Conscientiousness, Team Safety Climate, and Individual Safety Performance: a Cross-Level Mediation Model

Responding to calls for studies to examine the cross-level influence of team personality composition, we hypothesized a cross-level mediation model of the effects of different operationalizations of team conscientiousness (i.e., mean, minimum …

Autoren:
Xiaohong Xu, Nhan Le, Yimin He, Xiang Yao

11.06.2019

Real-time monitoring of high-power disk laser welding statuses based on deep learning framework

The laser welding quality is determined by its welding statuses, and online welding statuses are depicted by the real-time signals captured from the welding process. A multiple-sensor system is designed to obtain information as comprehensive as …

Autoren:
Yanxi Zhang, Deyong You, Xiangdong Gao, Congyi Wang, Yangjin Li, Perry P. Gao

11.06.2019

Optimal pricing for tandem queues with finite buffers

We consider optimal pricing for a two-station tandem queueing system with finite buffers, communication blocking, and price-sensitive customers whose arrivals form a homogeneous Poisson process. The service provider quotes prices to incoming …

Autoren:
Xinchang Wang, Sigrún Andradóttir, Hayriye Ayhan

11.06.2019

Is Perceived Equal Opportunity Corrosive for Support for Equal Outcomes? Individual-Based Evidence

According to a long-standing school of thought, the improvement in equal opportunity is said to reduce the support for equality of outcomes. Yet, some scholars challenge this wisdom and maintain that equalizing opportunities introduces higher …

Autor:
Raul Magni-Berton

11.06.2019

IoT-F2N: An energy-efficient architectural model for IoT using Femtolet-based fog network

Energy- and latency-optimized Internet of Things (IoT) is an emerging research domain within fifth-generation (5G) wireless network paradigm. In traditional cloud-centric IoT the sensor data processing and storage occurs inside remote cloud …

Autoren:
Anwesha Mukherjee, Priti Deb, Debashis De, Rajkumar Buyya

11.06.2019

Investigation of Reactive Scalar Mixing in Transported PDF Simulations of Turbulent Premixed Methane-Air Bunsen Flames

Transported probability density function (TPDF) simulations have been performed in conjunction with DNS data to investigate the mixing characteristics of reactive scalars in two turbulent lean premixed methane-air Bunsen flames with Case A being …

Autoren:
Hua Zhou, Zhuyin Ren, Michael Kuron, Tianfeng Lu, Jacqueline H. Chen

11.06.2019 | Original Paper

A Note on the Compressibility and Earth Pressure Properties of EPS Beads-Rigid Particulates Composite

In past decade, the application of lightweight composite materials has received great attention in geotechnical engineering discipline. This paper evaluates the effect of expanded polystyrene (EPS) beads on the compressibility and lateral earth …

Autoren:
Parichehr Tizpa, Reza Jamshidi Chenari, Farhang Farrokhi

11.06.2019 | Chemical routes to materials

Solution-processed mixed halide CH3NH3PbI3−xClx thin films prepared by repeated dip coating

The mixed halide CH3NH3PbI3−xClx crystalline thin film has been prepared by two-step solution-processed repeated dip coating method at an ambient atmosphere. X-ray diffraction study reveals the presence of tetragonal and cubic phases in deposited …

Autoren:
A. M. M. Tanveer Karim, M. S. Hossain, M. K. R. Khan, M. Kamruzzaman, M. Azizar Rahman, M. Mozibur Rahman

11.06.2019 | Metals & corrosion

Significance of epitaxial ferrite formation on phase transformation kinetics in quenching and partitioning steels: modeling and experiment

Experimental and simulation methods were applied to analyze the transformation kinetics of epitaxial ferrite (EF) formed during a continuous cooling process and relevant carbon content heterogeneity in a low-carbon quenching and partitioning …

Autoren:
Fei Peng, Yunbo Xu, Dingting Han, Xingli Gu

11.06.2019 | Original Paper

Spatial-multivariate statistical analyses to assess water quality for irrigation of the central part of Kuwait

Multivariate statistical analysis and ArcGIS tools have been used to assess groundwater quality in the central part of Kuwait. The chemical data for groundwater samples collected from 71 bore wells are assessed to determine their suitability for …

Autoren:
G. Shafiullah, F. M. Al-Ruwaih

10.06.2019

Correlation of Cooling Rate, Microstructure and Hardness of S34MnV Steel

A study of the hardenability, the microstructure and the phase transformations as a function of the cooling rate, of a marine crankshaft S34MnV steel has been performed using a Jominy end-quench test and dilatometry tests. The cooling rate has a …

Autoren:
Zhiying Chen, Philip Nash, Ying Zhang

10.06.2019

Concentration profiles in phase-separating photocuring coatings

We directly measured the local composition profiles in phase-separating photocurable thin films using confocal Raman spectroscopy. To avoid light scattering at phase interfaces, we developed a novel technique to replace the solvent with a monomer …

Autoren:
Hirokazu Yoshihara, Masato Yamamura

10.06.2019

Why Do Robots Need a Head? The Role of Social Interfaces on Service Robots

Developing effective ways for robots to communicate with humans presents many significant design challenges and requires detailed consideration of a wide range of factors. To facilitate communication between people and machines, it is common for …

Autor:
Conor McGinn

10.06.2019 | ORIGINAL ARTICLE

Investigation on the design of a novel selective laser melted insert for extrusion dies with conformal cooling channels

The thermal control and the maintenance of a uniform temperature in the extrusion process of aluminum alloys is a crucial task in order to generate sound profiles with high press productivities. This can be accomplished through liquid nitrogen …

Autoren:
B. Reggiani, I. Todaro

10.06.2019 | ORIGINAL ARTICLE

Molecular dynamics simulation and experimental research on fabrication of micro spherical electrode combined by electrochemical etching with spark discharge

The microstructures with spherical end have been widely applied in micromachining and measurement. In this paper, a microelectrode with spherical end was fabricated combining electrochemical etching with spark discharge machining. Firstly, the …

Autoren:
Li Songsong, Peng Chuanxiao, Liu Yong, Wang Kan, Kong Huanghai, Wei Zhiyuan

10.06.2019 | ORIGINAL ARTICLE

Study of the influence of tool rake angle in ductile machining of optical quartz glass

The SPH simulation model of optical quartz glass was established to study the ductile machining process with different tool rake angles. The material removal mode, stress distribution, cutting force, and subsurface damage during machining were …

Autoren:
Xiaoguang Guo, Ruifeng Zhai, Renke Kang, Zhuji Jin, Dongming Guo

10.06.2019 | S.I. : NFM2018

Rewriting toward trace coverage analysis of symmetric systems

Verification coverage is an important metric in any hardware verification effort. Coverage models are proposed as a set of events the hardware may exhibit, intended to be possible under a test scenario. At the system level, these events each …

Autoren:
Flavio M. De Paula, Arvind Haran, Brad Bingham

10.06.2019

From value chain to value network: a systematic literature review

Although over the years several contributions to the concept of the value chain have been provided, there is no systematic literature review focused on its evolution. The purpose of this paper is to fill this gap. A final sample of 66 papers has …

Autor:
Francesco Ricciotti

10.06.2019

SDSN: Software-defined Space Networking — Architecture and Routing Algorithm

Space networking has captured increasing attentions because of its wide application scenarios. Facing to the technical challenges of space networking including topology alteration, non-realtime condition capture and control, and instable …

Autor:
Tianjiao Xie

10.06.2019

Word Spotting in Background Music: a Behavioural Study

Introduction Speech intelligibility in realistic environments is directly correlated with the ability of focusing attention on the sounds of interest while discarding the background noise and other competing stimuli. This work investigates …

Autoren:
Letizia Marchegiani, Xenofon Fafoutis

10.06.2019 Open Access

Development of a New Quantile-Based Method for the Assessment of Regional Water Resources in a Highly-Regulated River Basin

In this paper, we present a study of assessing regional water resources in a highly regulated river basin, the Dee river basin in the UK. The aims of this study include: 1) to address the issue of hydrological simulations for regulated river …

Autoren:
Salam A. Abbas, Yunqing Xuan

10.06.2019

An SPDE model for systemic risk with endogenous contagion

We propose a dynamic mean-field model for ‘systemic risk’ in large financial systems, derived from a system of interacting diffusions on the positive half-line with an absorbing boundary at the origin. These diffusions represent the …

Autoren:
Ben Hambly, Andreas Søjmark

10.06.2019

Flame Spread Over Ultra-thin Solids: Effect of Area Density and Concurrent-Opposed Spread Reversal Phenomenon

There are no existing experimental studies of flame spread rate trends for ultra-thin solid samples. Previous theory has predicted that for concurrent flame in kinetic regime, the flame spread rate decreases as the sample thickness decreases and …

Autoren:
Anthony Vetturini, Wohan Cui, Ya-Ting Liao, Sandra Olson, Paul Ferkul

10.06.2019

Doing extreme by doing good

Firms adopting deviant strategies are generally subject to impaired legitimacy and heightened risk. Based on the legitimacy literature, we hypothesize that strategically deviant firms are motivated to engage in corporate social responsibility …

Autoren:
Xueyan Dong, Jingyu Gao, Sunny Li Sun, Kangtao Ye

10.06.2019

Does media coverage help firms “lobby” for government subsidies? Evidence from China

This study draws on the resource dependence theory to investigate the effect of media coverage on local governments’ subsidizing behavior. Using a sample of Chinese A-share listed firms spanning 2007–2012, we find that media coverage significantly …

Autoren:
Jin-hui Luo, Zeyue Huang, Ruichao Zhu

08.06.2019 | ORIGINAL ARTICLE

Experimental and numerical studies of re-stirring and re-heating effects on mechanical properties in friction stir additive manufacturing

Friction stir additive manufacturing is studied experimentally and numerically. Different to conventional friction stir welding, re-stirring and re-heating can be found for friction stir additive manufacturing. The new generated phenomena are …

Autoren:
Z. Zhang, Z.J. Tan, J.Y. Li, Y.F. Zu, W.W. Liu, J.J. Sha

08.06.2019 | Original

Volatile organic compounds and odor emissions from veneered particleboards coated with water-based lacquer detected by gas chromatography-mass spectrometry/olfactometry

To reduce the problem of volatile organic compounds (VOCs) and odor emissions from veneered particleboards coated with lacquer, this study focused on identifying odorant compounds and exploring the potential influence of environmental factors on …

Autoren:
Qifan Wang, Jun Shen, Yali Shao, Huajun Dong, Zhaojing Li, Xiwei Shen

08.06.2019 | Research Paper

Topology optimization of continua considering mass and inertia characteristics

The center of mass and the inertia tensor are important parameters characterizing the kinetic properties of many structural systems, e.g., the rotor, spacecraft, and aircraft. In these occasions, designs not consistent with the requirements on the …

Autoren:
Pingzhang Zhou, Guotao Ou, Jianbin Du

08.06.2019

MapReduce: an infrastructure review and research insights

In the current decade, doing the search on massive data to find “hidden” and valuable information within it is growing. This search can result in heavy processing on considerable data, leading to the development of solutions to process such huge …

Autoren:
Neda Maleki, Amir Masoud Rahmani, Mauro Conti

08.06.2019

Religious and Spiritual Beliefs Uniquely Predict Poverty Attributions

In this study, we investigated how religion and spirituality were associated with internal and external attributions for the causes of poverty. Such attributions are important as they may shape the types of policies and interventions that …

Autoren:
Brett A. Boeh Bergmann, Nathan R. Todd

08.06.2019

Methodology to Achieve Pseudo 1-D Combustion System of Polymeric Materials Using Low-Pressured Technique

This paper provides the methodology to achieve pseudo 1-D combustion system of specific polymeric materials without any complex physical effect (e.g., deformation, bubble bursting etc.) by adopting a low pressure technique with a fuel-layered …

Autoren:
Tatsuya Migita, Takumi Yamahata, Patrick Strempfl, Tsuneyoshi Matsuoka, Yuji Nakamura

08.06.2019 | Original Paper Open Access

Emerging Roles of Lead Buyer Governance for Sustainability Across Global Production Networks

Global production networks (GPNs) connect multiple producers involved in fragmented manufacturing processes. Major brands and retailers, considered as lead firms, are under increasing pressure to ensure products made through GPNs are produced …

Autor:
Rachel Alexander

08.06.2019 | ORIGINAL ARTICLE

Experimental investigation of tapping in CFRP with analysis of torque-tension resistance

Currently, carbon fibre–reinforced polymer composites are used in many industrial applications because they can replace traditional materials such as wood, metal, and in some situations even the concrete. It can be supported that the aerospace and …

Autoren:
Samuel Alves de Freitas, Jessica Tito Vieira, Sergio Luiz Moni Ribeiro Filho, Lincoln Cardoso Brandão

08.06.2019 Open Access

Case study scenarios in site selection of hazardous material facilities based on transportation preferences

A methodology is proposed to evaluate and rank potential sites for facilities dealing with hazardous materials (HAZMAT). The proposed methodology incorporates HAZMAT route planning into facility siting while considering transportation preferences …

Autoren:
Babak Mehran, Musharraf Ahmad Khan, Mina Mehran, Hyukjae Roh, Satish Sharma

08.06.2019 | Original Empirical Research

How intrafirm intermediary salespeople connect sales to marketing and product development

This research reveals the ways that salespeople manage intrafirm relationships by acting as intermediaries, connecting intrafirm members that would otherwise be unconnected. Using a two-study, multimethod design, the authors establish that (1) …

Autoren:
Gabriel R. Gonzalez, Danny P. Claro

08.06.2019 Open Access

Living a piety-led life beyond Muharram: becoming or being a South Asian Shia Muslim in the UK

Reformist British South Asian Twelver Shia Muslims emphasise practising Shia Islam in daily life beyond the month of Muharram by living a piety-led life; they encourage their followers to ‘become’ a Shia Muslim rather than just ‘being’ one. The …

Autor:
Sufyan Abid Dogra

08.06.2019

Improvements of microstructures and energy storage properties of Sr0.8(Na0.5Bi0.5)0.2TiO3 ceramics via microwave sintering

The Sr0.8(Na0.5Bi0.5)0.2TiO3 (SNBT) ceramics were prepared by different methods as conventional sintering (CS) and microwave sintering (MS), which showed different performance. The impact of MS method on the microstructure and energy storage …

Autoren:
Bo Wang, Yongping Pu, Qibin Yuan, Chenwei Cui, Guodong Shen

08.06.2019 | Research Paper

The Coalescence of Being: A Model of the Self-Actualisation Process

Self-actualisation is a central theme in many accounts of well-being. Yet theories of how self-actualisation is prosecuted and how exactly it leads to well-being are relatively underdeveloped. This paper addresses this shortfall by explicating a …

Autor:
Mark Fabian

08.06.2019

The consequence of differences: How heterogeneity in practice adaptations affects the diffusion process

This study extends diffusion studies by developing the concept of heterogeneity in practice adaptations, defined as the differences in how adopters adapt to a new practice post adoption. I first propose that the combination of organizational …

Autor:
Daisuke Uchida

08.06.2019

A meta-analytic review of the consequences of servant leadership: The moderating roles of cultural factors

The past decade has witnessed growing interests in empirically examining the effectiveness of servant leadership in management research. Our study reviews the literature on servant leadership and analyzes the relationship between servant …

Autoren:
Yucheng Zhang, Yuyan Zheng, Long Zhang, Shan Xu, Xin Liu, Wansi Chen

08.06.2019 | Original Contribution

Yield stress measurement of a thixotropic colloid

Yield stress measurements have long been considered to be inconsistent and difficult, especially for a thixotropic colloid, since the thixotropic behavior gives rise to time-dependent rheological properties. In this paper, we attempted measuring …

Autoren:
Ernest E. S. Ong, Sean O’Byrne, Jong Leng Liow

07.06.2019 | Original Paper

Carbides precipitation and their evolution of Cr15Co10Mo5-alloyed heat-resistant bearing steel after tempering at different temperatures

The carbides precipitation and their evolution at elevated tempering temperature in Cr15Co10Mo5-alloyed heat-resistant bearing steel were investigated by means of the transmission electron microscope. The results show that there is no carbide …

Autoren:
Mao-guo Xiao, Xin-yang Lü, Dong-hui Li, Shao-hong Li, Kun-yu Zhao, Mao-sheng Yang

07.06.2019 | Research Article Open Access

Friction of two-dimensional colloidal particles with magnetic dipole and Lennard–Jones interactions: A numerical study

We use Langevin simulations to study the sliding friction of two-dimensional colloidal particles on a substrate with randomly distributed point-like pinning centers. The colloidal particles are modeled to interact with each other through repulsive …

Autoren:
Zhongying Zhang, Cange Wu, Qi Zhang, Yigang Cao

07.06.2019 | Research Article Open Access

Electro-tribological properties of diamond like carbon coatings

Diamond like carbon (DLC) coatings typically present good self-lubricating tribological properties that could be of interest in sliding dielectric contacts in multiple electrical applications. In this work electro-tribological studies have been …

Autoren:
Iñigo Braceras, Iñigo Ibáñez, Santiago Dominguez-Meister, Xabier Velasco, Marta Brizuela, Iñaki Garmendia

07.06.2019 | Research Article

Influence of 3d transition-metal substitution on the oxygen reduction reaction electrocatalysis of ternary nitrides in acid

The development of non-precious, acid-stable, oxygen reduction reaction (ORR) electrocatalysts can significantly aid the commercialization of proton exchange membrane fuel cells (PEMFCs). We report a survey of the ORR electrocatalysis on 3d metal …

Autoren:
Kevin E. Fritz, Yichen Yan, Jin Suntivich

07.06.2019 | Research Article

High temperature performance of coaxial h-BN/CNT wires above 1,000 °C: Thermionic electron emission and thermally activated conductivity

The development of wires and cables that can tolerate extremely high temperatures will be very important for probing extreme environments, such as in solar exploration, fire disasters, high-temperature materials processing, aeronautics and …

Autoren:
Xinhe Yang, Peng Liu, Duanliang Zhou, Feng Gao, Xinhe Wang, Shiwei Lv, Zi Yuan, Xiang Jin, Wei Zhao, Haoming Wei, Lina Zhang, Jiandong Gao, Qunqing Li, Shoushan Fan, Kaili Jiang

07.06.2019

Whom are you going to call? determinants of @-mentions in Github discussions

Open Source Software (OSS) project success relies on crowd contributions. When an issue arises in pull-request based systems, @-mentions are used to call on people to task; previous studies have shown that @-mentions in discussions are associated …

Autoren:
David Kavaler, Premkumar Devanbu, Vladimir Filkov

07.06.2019 | Original Paper

Dung beetle responses to successional stages in the Amazon rainforest

Amazon rainforest is facing several threats due to anthropogenic activities causing loss of habitat, species, and ecosystem functions. However, several areas are being abandoned after anthropic use allowing secondary succession to occur, which can …

Autoren:
Bruna Santos Bitencourt, Pedro Giovâni da Silva, Elder Ferreira Morato, Ysadhora Gomes de Lima

07.06.2019 Open Access

Economic impact of energy saving techniques in cloud server

In recent years, lot of research has been carried in the field of cloud computing and distributed systems to investigate and understand their performance. Economic impact of energy consumption is of major concern for major companies. Cloud …

Autoren:
Bilal Ahmad, Zaib Maroof, Sally McClean, Darryl Charles, Gerard Parr

07.06.2019

Synthesis of silver nanowires with controlled diameter and their conductive thin films

Silver nanowires (AgNWs) with high uniformity and controlled morphology were synthesized by employing silver nitrate as precursor and ethylene glycol as reducing agent and solvent. Polyvinyl pyrrolidone (PVP) was used as growth controlling agent …

Autoren:
Shah Fahad, Haojie Yu, Li Wang, Ahsan Nazir, Raja Summe Ullah, Kaleem-ur-Rahman Naveed, Tarig Elshaarani, Bilal Ul Amin, Amin Khan, Sahid Mehmood

07.06.2019

An efficient Verilog-A memristor model implementation: simulation and application

Complementary metal–oxide–semiconductor (CMOS) technology is reaching its limits due to the continuous shrinking process, which has an impact on various aspects including device size, performance, and power consumption. The memristor is one of the …

Autoren:
Faten Ouaja Rziga, Khaoula Mbarek, Sami Ghedira, Kamel Besbes

07.06.2019

Investigating the Impact of Personality Traits of Social Network Sites Users on Information Disclosure in China: the Moderating Role of Gender

Social network sites (SNS) are a very popular method of online communication among university students, where users are willing to share personal and private information with other users. The purpose of this research is to investigate the possible …

Autoren:
Samar Mouakket, Yuan Sun

07.06.2019 Open Access

Ex-Vivo Porcine Skin Model for Estimation of Trapped Occupant Burn Risk in Pre- and Post-suppression Fire Environments

There are currently important questions in the fire service as to the efficacy of various fire attack methods, both in terms of rapidly suppressing the fire and for potentially impacting the burn risk for occupants in the structure. A series of 24 …

Autoren:
Nicholas Traina, Richard M. Kesler, Steve Kerber, Robin Zevotek, Tonghun Lee, Gavin P. Horn

07.06.2019 | Original Article

Interface depth modelling of gravity data and altitude variations: a Bayesian neural network approach

Modelling of anomalous geological source from the gravity data is vital for understanding the crustal/sub-crustal interface depths and associated hazard assessment. Two-dimensional radial power spectra have usually been used to infer average depth …

Autoren:
Saumen Maiti, Ch. Ravi Kumar, Prasenjit Sarkar, R. K. Tiwari, Uppala Srinu

07.06.2019 | Original Paper

Fracture Failure of Consequent Bedding Rock Slopes After Underground Mining in Mountainous Area

Underground coal mining in the southwestern mountainous area of China causes potential large-scale landslides. To prevent the geohazards of consequent bedding rock slopes after underground mining, the deformation and failure configuration were …

Autoren:
Jianxin Tang, Zhangyin Dai, Yanlei Wang, Lu Zhang

07.06.2019

A survey on software aging and rejuvenation in the cloud

The adoption of cloud computing for providing resource and delivering services is an irreversible trend. For most IT companies, the quality of provided services is strongly dependent on reliability and performance of the underlying cloud …

Autoren:
Roberto Pietrantuono, Stefano Russo

07.06.2019

Sanctions and public opinion: The case of the Russia-Ukraine gas disputes

Economic sanctions usually fail, sometimes even provoking the opposite of the intended outcome. Why are sanctions so often ineffective? One prominent view is that sanctions generate popular support for the targeted government and its policies; an …

Autoren:
William Seitz, Alberto Zazzaro

07.06.2019

Low-Temperature Synthesis of VB2 Nanopowders by a Molten-Salt-Assisted Borothermal Reduction Process

Vanadium diboride (VB2) powders with low oxygen content are prepared via a molten-salt-assisted borothermal reduction reaction at 1123 K to 1273 K (850 °C to 1000 °C) using V2O3 and boron powders as the raw materials. The effects of the amount of …

Autoren:
Yue-Dong Wu, Guo-Hua Zhang, Yu Wang, Rui Xu

07.06.2019

Modelling the relationship between financing by Islamic banking system and environmental quality: evidence from bootstrap autoregressive distributive lag with Fourier terms

The aim of the paper is to contribute to the extant empirical literature on the determinants of pollution by investigating the impact of financing by Islamic banking on a comprehensive index of emission in Malaysia. Using the stochastic …

Autor:
Sakiru Adebola Solarin

07.06.2019

End-to-End latent-variable task-oriented dialogue system with exact log-likelihood optimization

We propose an end-to-end dialogue model based on a hierarchical encoder-decoder, which employed a discrete latent variable to learn underlying dialogue intentions. The system is able to model the structure of utterances dominated by statistics of …

Autoren:
Haotian Xu, Haiyun Peng, Haoran Xie, Erik Cambria, Liuyang Zhou, Weiguo Zheng

07.06.2019 | Ceramics Open Access

Swift heavy ion-irradiated multi-phase calcium borosilicates: implications to molybdenum incorporation, microstructure, and network topology

A series of calcium borosilicate glasses with varying [B2O3], [MoO3], and [CaO] were prepared and subjected to 92 MeV Xe ions used to simulate the damage from long-term α-decay in nuclear waste glasses. Modifications to the solubility of …

Autoren:
Karishma B. Patel, Sylvain Peuget, Sophie Schuller, Clara Grygiel, Isabelle Monnet, Ian Farnan

06.06.2019 | Original Research

Cross Sectional and Longitudinal Fuzzy Clustering of the NUTS and Positioning of the Italian Regions with Respect to the Regional Competitiveness Index (RCI) Indicators with Contiguity Constraints

In socio-economical clustering often the empirical information is represented by time-varying data generated by indicators observed over time on a set of subnational (regional) units. Usually among these units may exist contiguity relations …

Autoren:
Pierpaolo D’Urso, Livia De Giovanni, Riccardo Massari, Francesca G. M. Sica

06.06.2019

Thermal and mechanical property of FCLED package component interconnected with Sn–MWCNT composite solder

Flip-chip light-emitting diode (FCLED) packages were interconnected with various contents of Sn-decorated multi-walled carbon nanotube (Sn–MWCNT) composite solder. The Sn–MWCNT was synthesized with a Sn solution using polyol to decorate Sn …

Autoren:
Choong-Jae Lee, Haksan Jeong, Kwang-Ho Jung, Kyung Deuk Min, Seung-Boo Jung

06.06.2019 | Original Paper

Exploring the drivers of vascular plant richness at very fine spatial scale in sub-Mediterranean limestone grasslands (Central Apennines, Italy)

Secondary dry grasslands in Europe can host high levels of vascular plant richness at small spatial scales. However, in Southern Europe their biodiversity patterns are largely unexplored. In this work, we aim at: (i) estimating plant species …

Autoren:
Goffredo Filibeck, Marta G. Sperandii, Manuele Bazzichetto, Leone D. Mancini, Francesco Rossini, Laura Cancellieri

06.06.2019 Open Access

What determines administrative capacity in developing countries?

While it is recognised that effective state institutions are pivotal for economic development, their origins and what explains their cross-country differences are not well understood. We focus on the quality of budgetary institutions in developing …

Autoren:
Roberto Ricciuti, Antonio Savoia, Kunal Sen

06.06.2019

The impact of Founder’s human capital on firms’ extent of early internationalisation: Evidence from a least-developed country

This study addresses the impact of the principal founder’s general and specific human capital factors on the extent of the internationalisation of early internationalising firms originating from a relatively low-tech and labour-intensive industry …

Autoren:
Farhad Uddin Ahmed, Louis Brennan

06.06.2019

Risk-taking in entrepreneurial decision-making: A dynamic model of venture decision

On the basis of the seminal work of Kahneman and Tversky Econometrica, 47(2): 263–292 (1979), this research extends the boundaries of prospect theory in investigating determinants and temporal variation of risk-taking in entrepreneurial decisions …

Autoren:
Yan Li, David Ahlstrom

06.06.2019 | Original Paper

Transparency and Control in Email Communication: The More the Supervisor is Put in cc the Less Trust is Felt

The issue of trust has increasingly attracted attention in the business ethics literature. Our aim is to contribute further to this literature by examining how the use of the carbon copy (cc) function in email communication influences felt trust.

Autoren:
Tessa Haesevoets, David De Cremer, Leander De Schutter, Jack McGuire, Yu Yang, Xie Jian, Alain Van Hiel

06.06.2019 | Original Paper

When Employees Retaliate Against Self-Serving Leaders: The Influence of the Ethical Climate

Leaders have been shown to sometimes act self-servingly. Yet, leaders do not act in isolation and the perceptions of the ethical climate in which leaders operate is expected to contribute to employees taking counteractive measures against their …

Autoren:
Stijn Decoster, Jeroen Stouten, Thomas M. Tripp

06.06.2019 | Original Paper Open Access

Does an Asset Owner’s Institutional Setting Influence Its Decision to Sign the Principles for Responsible Investment?

From a simple idea to unite asset owners in their quest for responsible investment (RI) at its launch in April 2006, the United Nations supported Principles for Responsible Investment (PRI) have grown in just one decade into an initiative with …

Autoren:
Andreas G. F. Hoepner, Arleta A. A. Majoch, Xiao Y. Zhou

06.06.2019 | Original Research

TBAH/Urea/H2O solvent for room temperature wet-spinning of cellulose and optimization of drawing process

Utilizing the cellulosic resources in a green and environmental-friendly way has long been a hot research topic. Artificial cellulosic fibers are one of the most important materials, which generate products with high value. Having been introduced …

Autoren:
Jingyu Zhang, Mengdie Wang, Wei Li, Wei Wei, Jinyang Li, Man Jiang, Yong Wang, Zuowan Zhou

06.06.2019 | Original Research

Mechanical properties of cellulose nanofibril films: effects of crystallinity and its modification by treatment with liquid anhydrous ammonia

The influence of cellulose crystallinity on mechanical properties of cellulose nano-fibrils (CNF) was investigated. Degree of crystallinity (DoC) was modified using liquid anhydrous ammonia. Such treatment changes crystal allomorph from cellulose …

Autoren:
Vegar Ottesen, Per Tomas Larsson, Gary Chinga-Carrasco, Kristin Syverud, Øyvind Weiby Gregersen

06.06.2019

A Control Strategy for Maintaining Gait Stability and Reducing Body-Exoskeleton Interference Force in Load-Carrying Exoskeleton

A key issue of load-carrying exoskeleton is to maintain the stability of gait during walking and prevent the wearer from falling over. Some of current strategies were to maintain ZMP (zero-moment point) in the support area, which had been widely …

Autoren:
Xianggang Zhang, Guoyu Wang, Peipei Yuan, Hui Xu, Yumei Hou

06.06.2019 | Original Paper

Analysis of the Pressure-Pulse Propagation in Rock: a New Approach to Simultaneously Determine Permeability, Porosity, and Adsorption Capacity

Permeability estimation from pressure-pulse decay method is complicated by two facts: (1) the decay curve often deviates from the single-exponential behavior in the early time period and (2) possible existence of gas adsorption. Both the two …

Autoren:
Chaolin Wang, Lehua Pan, Yu Zhao, Yongfa Zhang, Weike Shen

06.06.2019 | Original Paper

Toward a Generic Computational Approach for Flexible Rockfall Barrier Modeling

Flexible rockfall barriers are protection structures used to mitigate rockfall hazards in mountainous areas. The complex nonlinear mechanical behavior of these structures under impacts requires powerful modeling tools to perform structural …

Autoren:
Jibril B. Coulibaly, Marie-Aurélie Chanut, Stéphane Lambert, François Nicot

06.06.2019

Evaluating the performance of employee assistance programs (EAP): a checklist developed from a large sample of public agencies

Employee Assistance Program (EAP), which is designed to facilitate employee well-being by managing their personal work-related issues, plays an important role in human resource management. Yet, the development of EAP has encountered difficulties …

Autoren:
Yen-chen Hsu, Ching-wen Wang, Jun-bang Lan

06.06.2019 | ORIGINAL ARTICLE

A tilted orbital grinding technique for hole-making of CFRP composite laminates

Carbon fiber reinforced polymer (CFRP) laminates have been widely employed in the manufacturing of airplane. Usually, hole-making is the final machining process to join CFRP laminates with other components. However, CFRP laminates are considered …

Autoren:
Yanfeng Gao, Jun Xiong, Jianhua Xiao, Dong Lu

06.06.2019 | ORIGINAL ARTICLE

Experimental study of micromilling burrs of 304 stainless steel

Stainless steel is a well-known difficult-to-machine material with high toughness, low thermal conductivity, and high work hardening characteristics. Burrs generated in micromilling of the stainless steel seriously affect the performances of the …

Autoren:
Qiulian Sun, Xiang Cheng, Guoyong Zhao, Xianhai Yang, Guangming Zheng

06.06.2019

Dynamic Recrystallization and Metal Flow Behavior of AZ31 Magnesium Alloy Bending Products Processed by Staggered Extrusion

Traditional curved products are obtained in two steps, which consist of an extrusion process and a bending process. There are many bottlenecks to this, such as long processing cycle, low efficiency, and difficulty in controlling the product …

Autoren:
Yan Peng Wang, Feng Li, Wen Yong Shi, Xue Wen Li, Wen Bin Fang

06.06.2019 | Original Article

Consumer experience and the valued elements in the three phases of purchase of a cultural event

Consumer experience has been a central point for marketing researchers, but also a complex subject that seeks to integrate multiple relevant and enduring concepts of literature. In this sense there are numerous publications and perspectives on the …

Autoren:
Cátia Mendes de Jesus, Helena Maria Batista Alves

06.06.2019

Advanced Evaluation Methodology for Water Quality Assessment Using Artificial Neural Network Approach

The increasing rate of water pollution and consequent increase of waterborne diseases are compelling evidence of danger to public health and all living organisms. Preservation of flora and fauna by controlling various unexpected pollution …

Autoren:
Sandeep Bansal, Geetha Ganesan

06.06.2019

Flood Susceptibility Assessment by Using Bivariate Statistics and Machine Learning Models - A Useful Tool for Flood Risk Management

In Romania, as in the rest of the world, the flood frequency has increased considerably. Prahova river basin is among the most exposed catchments of the country to flood risk. It also represents the area of the present study for which the …

Autor:
Romulus Costache

06.06.2019 | Original Paper

Dynamic simulation of rockslide-debris flow based on an elastic–plastic framework using the SPH method

To simulate the motion process of a rockslide-debris flow that behaves like a solid in a small deformation regime and a fluid in an extremely large deformation regime, such as that of the Guanling rockslide in China on June 28, 2010, we proposed a …

Autoren:
Heng Liang, Siming He, Wei Liu

05.06.2019 | ORIGINAL ARTICLE

Finite element modeling for deep-drawing of aluminum alloy sheet 6014-T4 using anisotropic yield and non-AFR models

The predictive capability of a non-associated flow rule (non-AFR) for the strong plastic anisotropy was assessed. Based on Hill’s 48 function, a constitutive model under a non-AFR was established for aluminum alloy 6014-T4 sheet, in which the …

Autoren:
Zhu Chen, Jiaqing Zhao, Gang Fang

05.06.2019 | Article Open Access

The Nature of “Natural Disasters”: Survivors’ Explanations of Earthquake Damage

The distinction between natural and human-made disasters is ingrained in everyday language. Disaster scientists have long been critical of this dichotomy. Nonetheless, virtually no attention has been paid to how disaster survivors conceptualize …

Autoren:
Alessandro Massazza, Chris R. Brewin, Helene Joffe

05.06.2019 | Original Paper

A novel modified robust load frequency controller scheme

The main target of this study is to allow virtual inertia modern distributed energy resources (DERs) to participate effectively within interconnected power systems via fractional order PI controller. Fractional order proportional plus integral …

Autoren:
Farag K. Abo-Elyousr, Adel M. Sharaf

05.06.2019

Simplifying and implementing service level objectives for stream parallelism

An increasing attention has been given to provide service level objectives (SLOs) in stream processing applications due to the performance and energy requirements, and because of the need to impose limits in terms of resource usage while improving …

Autoren:
Dalvan Griebler, Adriano Vogel, Daniele De Sensi, Marco Danelutto, Luiz G. Fernandes

05.06.2019

Learners’ agency and CSCL technologies: towards an emancipatory perspective

This squib continues the ongoing conversation about the direction and future of CSCL, initiated by Wise and Schwarz (International Journal of Computer-Supported Collaborative Learning, 12, 423–467, 2017) and the ijCSCL editors. It argues that CSCL …

Autor:
Pierre Tchounikine

05.06.2019

Controlling Particle/Metal Interactions in Metal Matrix Composites During Solidification: The Role of Melt Viscosity and Cooling Rate

Lightweight materials have shown increasing applications for energy efficiency[ 1 ] in the aerospace[ 2 ] and automotive[ 3 , 4 ] industries. Advanced light alloys, such as Al alloys[ 5 , 6 ] and Mg alloys,[ 7 , 8 ] have been developed by …

Autoren:
Renhai Shi, Janet M. Meier, Alan A. Luo

05.06.2019

Optimization of Aluminum Alloy AA5083 for Superplastic and Quick Plastic Forming

The high temperature formability of Al-4.6 wt pct Mg alloys with 0.5-1.5 wt pct Mn and 0.05-0.27 wt pct Fe has been evaluated by uni-axial tensile testing at 698.15 K to 798.15 K (425 °C to 525 °C) with strain rates from 2 × 10−5 to 8.75 × 10−2 …

Autor:
H. Jin

05.06.2019 | Research Article Open Access

Implementation of RTO in a large hydrogen network considering uncertainty

This paper describes the problems associated with the implementation of a real-time optimization (RTO) decision support tool, for the operation of a large scale hydrogen network of an oil refinery. In addition, a formulation which takes into …

Autoren:
Anibal Galan, Cesar de Prada, Gloria Gutierrez, Daniel Sarabia, Ignacio E. Grossmann, Rafael Gonzalez

05.06.2019 | Long Paper Open Access

Changing patterns of social media use? A population-level study of Finland

This article examines the changing patterns of Finnish social media use during the years 2008–2016. This is the first temporal look at changes in Finnish social media use with representative population-level data. We assess how social media use …

Autoren:
Ilkka Koiranen, Teo Keipi, Aki Koivula, Pekka Räsänen

05.06.2019 | Original Paper

Experimental Research on Dynamic Evolution Characteristics of Roof Movement and Mining-Induced Stress of Superimposed Mining in a Close Distance Coal Seam Group

To obtain the evolution characteristics of roof movement and mining-induced stress, the evolution of roof movement and mining-induced stress are investigated during the mining of close coal seams based on 2# and 3 + 4# coal seams in Shaqu coal …

Autoren:
Zhiheng Cheng, Haifeng Ma, Cong Sang, Yanqing Liu

05.06.2019 | Original Research

Freeze-drying prepared ready-to-use gelatin @polypropylene nonwoven hybrid sheet for stacking 3D cell culture

For the past centenary, glass flasks, plastic culture dishes, and microplates have been used for cell culture. In those culture settings, cells grow on two-dimensional (2D) substrates as a monolayer, which significantly differs from real in vivo …

Autoren:
Ying Zhou, Jing-Jing Fu, Lin-Xiang Wang, Zhisong Lu, Feng Wang, Qingyou Xia, Yuejun Kang, Chang Ming Li, Ling Yu
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