bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tribological properties of the epoxy resin-based solid lubricant coating modified by Kevlar fibers
Authors: Zhang Guotao , Yin Yanguo , Xie Ting , Li Dan , Xu Ming , Li Congmin 
Published: October 2018

Purpose
This paper aims to obtain high mechanical and good tribological properties of epoxy resin-based coatings under dry friction conditions.

Design/methodology/approach
Bonded solid lubricant coatings containing Kevlar fibres were prepared by a spraying method. The friction and wear properties of the coatings were experimentally investigated with a face-to-face tribometre under dry friction conditions. Scanning electron microscopy, energy dispersive X-ray spectroscopy and 3D laser scanning technologies were used to characterise the tribological properties. The action mechanism of the Kevlar fibres on a solid lubricant transfer film was also analysed.

Findings
Adding Kevlar fibres can significantly improve the wear resistance of the coatings. When the Kevlar fibre content increases, the tribological properties of the coatings improve and then worsen. Superior properties are obtained with 0.03 g of Kevlar fibres. Appropriately increasing the load or speed is beneficial to the removal of the outer epoxy resin and the formation of a lubricant film. During friction, the solid lubricants wrapped in the epoxy resin accumulate on the surface to form a transfer film that shows a good self-lubricating performance. In the later friction stage, fatigue cracks occur on the solid lubricant film but cannot connect to one another because of the high wear resistance and the entanglement of the rod-like Kevlar fibres. Thus, no large-area film falls from the matrix, thereby ensuring the long-term functioning of solid lubricant coatings.

Originality/value
Epoxy resin-based solid lubricant coatings modified by Kevlar fibres were prepared, and their friction and wear properties were investigated. Their tribological mechanisms were also proposed. This work provided a basis for the analysis of the tribological properties and design of bonded solid lubricant coatings containing Kevlar fibres.
Tribological behaviour and wear fashion of processed AA6061/ZrO2 composite
Authors: James Johny , A. Raja Annamalai 
Published: October 2018

Purpose
This study aims to develop a less weight high wear resistant material to fabricate brake components especially in automotive sector.

Design/methodology/approach
Effort was initiated to design and develop aluminium metal matrix composite by combining aluminium alloy AA6061 and zirconium oxide (ZrO2) with the help of stir casting coupled with squeeze casting unit. Morphology analysis of advanced composite has been carried out by optical microscopy and scanning electron microscopy (SEM). The hardness of composites having different compositions was tested using Vickers micro hardness tester. The tribological property of the developed three specimens having different composition has been tested using pin-on-disc wear test equipment under dry sliding conditions. To obtain better understanding of wear mechanism, SEM image of worn-out surface was captured and analysed. SEM images and the corresponding Energy-dispersive X-ray spectroscopy (EDX) on the wear surface were carried out.

Findings
The optical and SEM images evidenced the existence of ZrO2 particles along the metal matrix composite. Porosity values shows that the porosity level is acceptable as it falls below 7 per cent. Also, the finding proves that increase in the percentage of reinforcement particle instigates agglomeration on the AA6061 composites. Hardness test demonstrated that the inclusion of hard ZrO2 particles leads to substantial improvement in hardness and the hardness value started deteriorating when the composition reaches 15 per cent. The wear test results substantiated the enhancement of tribological property due to the inclusion of distinct ZrO2 particles. Also, despite of addition of reinforcements, the wear rate increased when the load increases. SEM images proved that AA6061/ZrO2-5 per cent composite fashioned steady-state mild and smooth wear. EDX spectrum analysis revealed the existence of ZrO2 particles along with wear debris, which caused wear of 685 µm in AA6061/ZrO2-15 per cent composite.

Originality/value
The developed material possesses low wear rate which is the unique property of composite and frictional force which is directly proportional to load but the coefficient of friction remains apparently constant. As a whole, investigations on developed composites introduce a new material which is suitable for manufacturing of brake components for automobile industry.
Force and motion control of a tendon-driven hand exoskeleton actuated by shape memory alloys
Authors: Kazeminasab Saber , Hadi Alireza , Alipour Khalil , Elahinia Mohammad 
Published: October 2018

Purpose
Many people suffer from injuries related to their hand. This research aims to focus on the improvement of the previously developed smart glove by using position and force control algorithms. The new smart glove may be used for both physiotherapy and assistance.

Design/methodology/approach
The proposed robot uses shape memory alloy (SMA) actuators coupled to an under-actuated tendon-driven mechanism. The proposed device, which is presented as a wearable glove attached to an actuation module, is capable of exerting extremely high forces to grasp objects in various hand configurations. The device’s performance is studied in physiotherapy and object manipulation tasks. In the physiotherapy mode, hand motion frequency is controlled, whereas the grasping force is controlled in the object manipulation mode. To simulate the proposed system behavior, the kinematic and dynamic equations of the proposed system have been derived.

Findings
The achieved results verify that the system is suitable to be used as part of a rehabilitation device in which it can flex and extend fingers with accurate trajectories and grasp objects efficiently. Specifically, it will be shown that using six SMA wires with the diameter of 0.25 mm, the proposed robot can provide 45 N gripping force for the patients.

Originality/value
The proposed robot uses SMA actuators and an under-actuated tendon-driven mechanism. The resulted robotic system, which is presented as a wearable glove attached to an actuation module, is capable of exerting extremely high force levels to grasp objects in various hand configurations. It is shown that the motion and exerted force of the robot may be controlled effectively in practice.
Instrumentation and self-repairing control for resilient multi-rotor aircrafts
Authors: Wang Zhipeng , Qian Zhiqin , Song Ziye , Liu Hongzhou , Zhang Wenjun , Bi Zhuming 
Published: October 2018

Purpose
Even though multi-rotor aircrafts are becoming more and more prevalent in the fields of aerial photography, agricultural spraying, disaster searching and rescuing, how to achieve higher reliability and robustness of an aircraft still poses a big challenge. It is not a rare case that a multi-rotor aircraft is severely damaged or crushed when an actuator or sensor is malfunctioned. This paper aims at the resilience of an aircraft when a rotor is malfunctioned.

Design/methodology/approach
The reliability of a multi-rotor aircraft can be measured in terms of stability, robustness, resilience and fault tolerance. All of these four aspects are taken into consideration to improve overall reliability of aircrafts. When a rotor malfunction occurs, the control algorithm is cable of adjusting the operation conditions of the rest of rotors to achieve system stability.

Findings
In this paper, the authors first present a research topic on the development of a resilient multi-robot aircraft. A multi-rotor aircraft usually possesses more actuated motions than the required degrees of freedom.

Originality/value
The authors proposed to equip the multi-rotor aircraft with malfunction detecting sensors, and they developed the self-repairing algorithm to re-stabilize the aircraft when a malfunction of a rotor occurs. The design concept and methods were implemented on an eight-rotor aircraft, and the performance of the proposed instrumentation and self-repairing algorithm have been verified and validated.
Graph-based visual odometry for VSLAM
Authors: Xu Shaoyan , Wang Tao , Lang Congyan , Feng Songhe , Jin Yi 
Published: October 2018

Purpose
Typical feature-matching algorithms use only unary constraints on appearances to build correspondences where little structure information is used. Ignoring structure information makes them sensitive to various environmental perturbations. The purpose of this paper is to propose a novel graph-based method that aims to improve matching accuracy by fully exploiting the structure information.

Design/methodology/approach
Instead of viewing a frame as a simple collection of keypoints, the proposed approach organizes a frame as a graph by treating each keypoint as a vertex, where structure information is integrated in edges between vertices. Subsequently, the matching process of finding keypoint correspondence is formulated in a graph matching manner.

Findings
The authors compare it with several state-of-the-art visual simultaneous localization and mapping algorithms on three datasets. Experimental results reveal that the ORB-G algorithm provides more accurate and robust trajectories in general.

Originality/value
Instead of viewing a frame as a simple collection of keypoints, the proposed approach organizes a frame as a graph by treating each keypoint as a vertex, where structure information is integrated in edges between vertices. Subsequently, the matching process of finding keypoint correspondence is formulated in a graph matching manner.
Model-based deep reinforcement learning with heuristic search for satellite attitude control
Authors: Xu Ke , Wu Fengge , Zhao Junsuo 
Published: October 2018

Purpose
Recently, deep reinforcement learning is developing rapidly and shows its power to solve difficult problems such as robotics and game of GO. Meanwhile, satellite attitude control systems are still using classical control technics such as proportional – integral – derivative and slide mode control as major solutions, facing problems with adaptability and automation.

Design/methodology/approach
In this paper, an approach based on deep reinforcement learning is proposed to increase adaptability and autonomy of satellite control system. It is a model-based algorithm which could find solutions with fewer episodes of learning than model-free algorithms.

Findings
Simulation experiment shows that when classical control crashed, this approach could find solution and reach the target with hundreds times of explorations and learning.

Originality/value
This approach is a non-gradient method using heuristic search to optimize policy to avoid local optima. Compared with classical control technics, this approach does not need prior knowledge of satellite or its orbit, has the ability to adapt different kinds of situations with data learning and has the ability to adapt different kinds of satellite and different tasks through transfer learning.
Purchase intention in an electronic commerce environment
Authors: Shareef Mahmud Akhter , Dwivedi Yogesh K. , Kumar Vinod , Davies Gareth , Rana Nripendra , Baabdullah Abdullah 
Published: October 2018

Purpose
The purpose of this paper is to understand the integrated impact of the application of protection measures against identity theft on consumers’ synergistic perception of trust, the cost of products/services and operational performance (OP) – all of which in turn is postulated to contribute to purchase intention (PI) when shopping online.

Design/methodology/approach
In order to accomplish the specified aim, this study first conducted an experiment by involving the students from a university in Bangladesh. Then a survey was conducted to capture their opinion based on the previous experiment.

Findings
The study identified that in e-commerce, OP and trust have potential impact on pursuing consumers’ PI. Traditionally, price is always an issue in marketing; however, for e-commerce, this issue does not have direct impact on PI.

Research limitations/implications
The main limitation of this study is that a less established e-commerce example was utilized to conduct the experiment and survey for validating the model. Also, the study was conducted only in the context of Bangladesh and a student sample was utilized. Future studies can test the model in different contexts (particularly to verify the impact of privacy) by utilizing data from consumers.

Practical implications
This study has resolved a controversial issue by generating clear guidelines that the overall conjoint effect of OP, trust, and price on PI is neither negative nor neutral. Synergistically, the application of these controlling tools of identity theft can substantially enhance consumers’ trust, which is the single most predictor to pursue consumer PI.

Originality/value
This study has provided in-depth insight into the impact of different controlling measures in e-commerce PI. Practitioners have potential learning from this study that if consumers find the application of different controlling mechanisms against cybercrimes, particularly identity theft, enhancing the reliability, authenticity and security of transactions in this virtual medium, they do not mind paying a higher price. Such insights have not been provided by existing studies on this topic. Developing trust on e-commerce purchase is the driving force, not the price.
A delicate balance: how multinationals can harmonize local and global strategies
Authors: Baumgartner Marc André , Tippmann Esther 
Published: October 2018

Purpose
Strategizing in a multinational corporation requires balancing global and local strategy. The purpose of this paper is to provide some insights into how multinational corporations succeed in this endeavor.

Design/methodology/approach
The authors conducted a detailed qualitative investigation of the strategy-development processes at Gamma – a European multinational corporation in the materials industry. Specifically, the authors investigated strategy development in the DACH region (i.e., for the German, Austrian and Swiss subsidiaries). To collect data, they conducted interviews with key informants at the corporate headquarters and the subsidiaries and collected archival data.

Findings
The data revealed that Gamma had found an approach to strategy development that balanced its global strategy with local conditions, finding a suitable way to align its global and local strategies. The authors therefore unravel three key insights revolving around subsidiaries’ unique interpretations of the basic idea of global strategy, idiosyncratic strategy development processes in subsidiaries and globally and locally synchronized temporal structures.

Originality/value
Knowing how to balance the strategic needs of headquarters and subsidiaries allows multinational corporations to follow a general strategy while simultaneously developing a local market strategy responsive to the individual market requirements.
Getting employees involved in strategy planning
Authors: Davis Paul J. 
Published: October 2018

Purpose
This paper aims to demonstrate how appreciative inquiry methods can be applied by managers to developing and reviewing business strategy as an alternative, more inclusive and positive approach than is traditionally adopted.

Design/methodology/approach
Two cases are presented emanating from consulting projects undertaken by the author.

Findings
The cases highlight that appreciative inquiry methods can be applied practically to matters of strategy in different types of organizations.

Practical implications
The practical implications are far reaching. Appreciative inquiry is a fully inclusive method of organizational research. It can be easily and inexpensively adopted and run by management teams, and all employees can be active participants in the process.

Originality/value
The paper is the first that specifically marries appreciative inquiry with business strategy development and review for practitioners and that presents practitioner-oriented cases.
Joining a collaborative space: is it really a better place to work?
Authors: Capdevila Ignasi 
Published: October 2018

Purpose
Collaborative spaces such as Fab Labs, Living Labs, coworking spaces, hackerspaces, makerspaces, etc. are localized spaces that offer open access to resources. The purpose of this paper is to explain what motivates participants in such spaces, according to different innovation logics.

Design/methodology/approach
The paper is based on qualitative studies of 43 collaborative spaces in Paris and Barcelona.

Findings
This paper proposes a typology of different collaborative spaces to understand what motivates their participants. The classification is based on the innovation approach of each type of space: methods and techniques of ideation, social innovation, open innovation and user-driven innovation.

Research limitations/implications
The classification of collaborative spaces clearly identifies different innovation approaches. However, it might result to be too simplistic and may not represent all spaces under the same denomination.

Practical implications
This paper provides some guidelines for managers who run or intend to open a collaborative space. In bottom-up innovation modes, to increase the commitment of the participants, managers should provide the tools and resources needed to successfully achieve the goals of the members’ projects. In top-down innovation modes, managers should rather focus on designing an attractive and rewarding process of ideation.

Originality/value
This paper contributes to the understanding of collaborative spaces; it shows that participants’ engagement is related to the nature of the innovation activities that take place in collaborative spaces, and it compares different types of spaces to explain their differences and similarities.
Customs, mores and culture in determining the scope of law and financial crime control – relevance of Savigny and Lord Denning’s analysis
Authors: Adetunji Adeoye Johnson 
Published: October 2018

Purpose
The purpose of this paper is to evaluate the role of customs and morality on financial crime control in developing countries, against the background of inherited foreign laws and international best practice.

Design/methodology/approach
The research is explanatory, descriptive and exploratory, relying extensively on existing anti-graft journals, text books, decided cases, constitutional provisions, statutory provisions and United Nation Conventions.

Findings
The research findings and analysis propose that the existing financial crime control measures in developing nations fail to consider local customs and circumstances in formulating anti-corruption policies and laws; consequently, a meaningful and effective financial crime control in developing nations, especially in Nigeria, requires the customs and culture to be examined and evaluated with a view to designing a pragmatic policies and laws.

Originality/value
The paper contributes practical options to observed lapses in the existing financial control laws, especially corruption. The paper will be valuable to African Governments, corporations and the academic community.
Drivers for voluntary intellectual capital reporting based on agency theory
Authors: Goebel Viktoria 
Published: October 2018

PurposeThe purpose of this paper is to investigate the drivers for voluntary intellectual capital (IC) reporting based on agency theory. This study responds to calls for critical investigations of IC reporting utilising Goebel’s (2015a) IC measuring approach to investigate the role of IC value and mispricing for IC reporting.Design/methodology/approachA mandatory management report offers a unique research setting in Germany. The content analysis results of 428 German management reports are used in a regression analysis with leverage, ownership diffusion, IC value and mispricing. Additionally, a propensity score matching approach examines the relationship between IC reporting and IC value.FindingsThe regression results show that companies use voluntary IC reporting to encounter mispricing. IC reporting is negatively associated with leverage, whereas ownership diffusion and IC value show no significant results. The propensity score matching approach is also not significant.Research limitations/implicationsThis study contributes to strengthening and testing agency theory for IC reporting. As mispricing is identified to play an important role for IC reporting, IC research should account for mispricing.Practical implicationsThe findings suggest to reopen a discussion on the declared aims of the German management report and the international integrated reporting model to provide information on value creation, as IC value shows no link to IC reporting.Originality/valueThis study innovatively links IC reporting to IC value and mispricing to investigate drivers for voluntary IC reporting.
Shadow credit in the middle market: the decade after the financial collapse
Authors: Zabala Craig Anthony , Josse Jeremy Marc 
Published: October 2018

Purpose
The purpose of this paper is to review the continued development of the “shadow banking” market in the USA, namely, lending to the private middle market, defined as financings of $5-100m to non-public, unrated operating entities or pools of assets with not more than $50m in earnings before interest, taxes, depreciation and amortization.

Design/methodology/approach
The analysis includes a continued review of an innovative segment of the financial markets and primary evidence from direct participation in four actual cases of private, non-bank lending between 2013 and 2015 and theoretical observations around that data.

Findings
Although there have been considerable challenges, historically, in providing credit for small and mid-sized businesses in the USA, the authors show further evidence that private middle market capital is growing (post credit crisis) at a dramatic pace, in part because of excessive constraints placed on the regulated depositary institutions. The authors also explain the nature of the shadow banking innovation and how it is intrinsically linked to “arbitraging” often excessively restrictive banking regulation. The growing US shadow banking market, while providing an important service to middle market companies, may pose a new systemic risk post 2007-2008 credit crisis in the USA.

Research limitations/implications
Any generalization is limited because of the difficulty in extrapolating from a small number of specific case studies and the absence of adequate survey data for the US capital markets and the limited examples examined.

Practical implications
This research calls for additional case studies, including participant observation research that offers a unique close-up view of financial behavior that is often beyond the view of regulators and the public. Data obtained may be useful in providing a deeper, more timely understanding of credit market behavior and contribute to efforts at formal financial modeling as well as the development of practical regulatory regimes.

Social implications
The shadow credit market is a key source of funding for the global financial system, thus contributing to job creation and economic growth. The authors demonstrate the value of financial innovations and show that shadow credit fills a void left by depository financial institutions, shifting much of the risk from the public to investors. This research increases transparency in the operation of this market, which is extremely important for the industry, the government and the public. The authors offer a modest attempt at understanding credit behavior to avoid a repeat of the 2007/2008 financial crisis.

Originality/value
Direct participation is unique to the firms studied. Value is in developing a general framework to analyze an emerging credit market in advanced economies.