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The aim of this paper is to explore whether national diversity in the form of national variety (differences in kind, e.g. number of nationalities) has a positive effect on group processes and performance whereas national separation (differences in attitudes and beliefs; i.e. social distance and national stereotypes) has a negative effect.

This cross-cultural comparative study examines the moderating role of national diversity in the relationship between social attitudes on conflict and performance across two samples. Participants are presented with one of the two national variety conditions (low or high national variety) who then report on social distance, national stereotype, conflict, and performance.

National separation negatively relates to performance and positively relates to conflict. However, there is less conflict and higher performance, despite national separation, when there is high national variety.

This study is limited to individual perceptions. Research could be extended to experienced conflict and effects of individual national separation on conflict and performance at the group level.

Although social distances and negative stereotypes may not be completely eliminated, the results imply that managers can modify the effects by promoting and celebrating national variety. The results show that even conflict is modified (task conflict increases while relationship and process conflict decreases) when there is national variety despite social distances and negative stereotypes.

This study contributes to workgroup research on diversity and conflict management by exploring social attitudes and opinions. Individual attitudes are the bases of group processes and this study attends to two of the social attitudes that need to be added to our understanding of group processes.

This study aims to focus on three types of team faultlines (separation-based faultlines, variety-based faultlines and disparity-based faultlines) and discuss the different ways through which their configurational properties (faultline strength and faultline distance) affect team performance.

The authors adopted panel data regression analysis to test the model. Panel data of Chinese provincial party-government top cadres teams that covers 30 provincial areas from 2007 to 2012 were collected for data analyses.

The results revealed that separation-based faultline strength was negatively related to team performance, variety-based faultline strength had a U-shape relationship with team performance and disparity-based faultline strength had an inversed U-shape relationship with team performance. In addition, separation-based and disparity-based faultline distances served as moderators enhancing the curvilinear relationship between faultline strength and team performance. Notably, variety-based faultline distance failed to exaggerate the U-shape relationship between variety-based faultline strength and team performance; however, the relationship changed based on different levels of variety-based faultline distance.

This study discussed team configurations based on three types of faultlines by comparing differences between team configurations reflected by diversity and faultline strength. Settled in Chinese political context, this study empirically tested the interaction effects between faultline strength and distance on team performance.

The purpose of the paper is to better understand how global boundaries affect global information system (IS) project success and which mediating process variables increase the chance of success.

Based on the literature on IS success and global teams, an input‐process‐output framework is adopted to develop the research model for the study. This research is based on semi‐structured interviews with 22 global IS project managers. An attribution analysis is used to identify common themes and patterns of the interview results.

Global IS project managers identified time separation and cultural differences as the most significant barriers to project success. Our findings suggest that effective teams were able to overcome these barriers to achieve success, but this success was achieved through the implementation of special coordination, communication and cognitive processes tailored to help teams overcome global barriers and through considerable additional cost and effort.

This study furthers understanding of the global boundaries affecting global IS project success and the most effective processes that teams use to overcome global barriers.

Despite the increasing attention to global IS work, there is limited understanding of why and how global IS projects succeed or fail. The present study, investigates not only how multiple global boundary variables (e.g. geographic dispersion, time separation, language differences, cultural differences, etc.) affect IS project success, but also which processes teams use to cope with the challenges presented by these global boundaries.

The paper aims to present the findings of a research project “Human Factors in ‘Fast‐Time’ Simulation” which was supported by Central European Air Traffic Services – CEATS Research, Development and Simulation Centre (CRDS) EUROCONTROL.

With the aim of improving fast‐time simulations by developing new models related to the air traffic controller's decisions, a simple traffic situation was chosen. It is focused on a pair of aircraft where one aircraft is cruising while the second is requesting clearance for climbing to the same flight level and proceeding flight “in‐trail” whereby flight level is not occupied with other traffic.

In order to determine parameters important to the controllers while making a decision, pilot inquiry was realized in the EUROCONTROL CRDS. The results obtained were used for determining the content and form of the final interview. The model based on the final interview results is designed on the “black box” principle – for certain inputs, output is a two‐dimensional decision: YES/NO give the clearance to the aircraft to climb. The model coincides to a high degree with the real system, confirming its credibility.

The established model could improve fast‐time simulations. By defining all relevant traffic situations, developing rule bases for every day traffic situations will be possible. Those rule bases could cover mayor situations which controllers are often confronted with. Integration of the model into fast‐time simulators could improve the credibility of simulated air traffic to the real traffic system.

The paper deals with the various aspects of human factor modelling in aviation.

A STUDY of the flow in the immediate neighbourhood of the surface of a wing or body has often provided an explanation of apparent inconsistencies in the evidence obtained from tests in different wind tunnels or from model and full scale experiments. It is of the highest importance in investigations of critical changes in aerodynamic forces such as occur when a wing stalls, of interference effects and of oscillatory motions caused wholly or partially by aerodynamic forces.

Wireless communication channel provides a wide area of applications in the field of communication, distributed sensor network and so on. The prominence of the wireless communication channel is because of its robust nature and the sustainability for the precise ranging and the localization. The precision and accuracy of the wireless communication channel largely depend on the localization. The development of the wireless communication channel with improved benefits needs the accurate channel model.

This paper characterizes the tangential path loss model in the WINNER based wireless communication channel model. The measurements taken in the WINNER channel model are compared with the tangential path loss characterized WINNER Channel model.

The model operates well over the varying antenna orientations, measurement condition and the propagation condition. The proposed tangential path loss model is performing well over the various outdoor scenarios.

The proposed characterization shows change in the small-scale parameters (SSP), such as power, delay, angle of arrival and angle of departure as well as the large-scale parameters (LSP), such as RMS delay spread, shadowing, path loss and Ricean factor associated with the model.

One major challenge in turbulent flow applications is to control the recirculation zone behind the backward‐facing step (BFS). One simple idea to do so is to modify the original BFS geometry, of course, without causing adverse or undesirable impacts on the original characteristics of the primary stream. The main objective of this work is to examine the solidity of the recirculation zone behind several different geometries which are slightly to moderately different from the original BFS geometry.

The implemented modifications cause complicated irregularities at the boundaries of the domain. The experience shows that the mesh distribution around these irregularities plays a critical role in the accuracy of the numerical solutions. To achieve the most accurate solutions with the least computational efforts, we use a robust hybrid strategy to distribute the computational grids in the domain. Additionally, a suitable numerical algorithm capable of handling hybrid grid topologies is properly extended to analyze the flow field. The current fully implicit method utilizes a physical pressure‐based upwinding scheme capable of working on hybrid mesh.

The extended algorithm is very robust and obtains very accurate solutions for the complex flow fields despite utilizing very coarse grid resolutions. Additionally, different proposed geometries revealed very similar separated regions behind the step and performed minor differences in the location of the reattachment points.

The current study is fulfilled two‐dimensionally. However, the measurements in testing regular BFS problems have shown that the separated shear layer behind the step is not affected by 3D influences provided that the width of channel is sufficiently wide. A similar conclusion is anticipated here.

The problem occurs in the pipe and channel expansions, combustion chambers, flow over flying objects with abrupt contraction on their external surfaces, etc.

A novel pressure‐based upwinding strategy is properly employed to solve flow on multiblocked hybrid grid topologies. This strategy takes into account the physics associated with all the transports in the flow field. To study the impact of shape improvement, several modified BFS configurations were suggested and examined. These configurations need only little additional manufacturing cost to be fabricated.

The objective of the study is to identify and analyse drivers of smart manufacturing using integrated grey-based approaches. The analysis facilitates industry practitioners in the identification of preference of drivers through which smart manufacturing can be implemented. These drivers are explored based on existing literature and expert opinion.

Modern manufacturing firms have been adopting smart manufacturing concepts to sustain in the global competitive landscape. Smart manufacturing incorporates integrated technologies with a flexible workforce to interlink the cyber and physical world. In order to facilitate the effective deployment of smart manufacturing, key drivers need to be analysed. This article presents a study in which 25 drivers of smart manufacturing and 8 criteria are analysed. Integrated grey Technique for Order Preference by Similarity to Ideal Solution (grey TOPSIS) is applied to rank the drivers. The derived ranking is validated using “Complex Proportional Assessment – Grey” (COPRAS-G) approach.

In total, 25 drivers with 8 criteria are being considered and an integrated grey TOPSIS approach is applied. The ranking order of drivers is obtained and further sensitivity analysis is also done.

In the present study, 25 drivers of smart manufacturing are analysed. In the future, additional drivers could be considered.

The study presented has been done with inputs from industry experts, and hence the inferences have practical relevance. Industry practitioners need to focus on these drivers in order to implement smart manufacturing in industry.

The analysis of drivers of smart manufacturing is the original contribution of the authors.

SECANT is an acronym that stands for the SEparation and Control of Aircraft using Non‐synchronous Techniques. It is a cooperative transponding system which operates at L‐band, and performs the collision avoidance function by transmitting probes and receiving replies with a 1‐microsecond pulse, at 1,000 pulses/sec, on 24 different frequencies. Various discriminants are used to eliminate the undesired signals or “fruit”: different frequencies are allocated as a function of altitude of the flight of the aircraft; the fields above and below the aircraft are probed separately; analogue thresholds are established, based on the range required for the collision avoidance function, which discriminate against signals coming from aircraft too far away to be involved.

This chapter is based on a study of 60 migrant women in Washington State, USA, and their communication with their families in and across borders through information and communication technologies (ICTs). Four themes were identified in the research concerning the uneasy ways family members used the ICTs to: (1) predicate migration decision-making through word-of-mouth and social media; (2) facilitate the movement of members across borders through stepwise migration; (3) affect the transition to a transnational family through establishing a sense of co-presence; and (4) mediate care through communication chains. The significance of the study demonstrates the need for relational thinking about transnational family communication and the mobilities of families. Transnational family members develop sophisticated ways of communicating through ICTs, albeit with difficulty, and which are embedded in interdependent systems of migration and mobilities.