Autonomous performance maximization of research-based hybrid unmanned aerial vehicle

2020 ◽  
Vol 92 (4) ◽  
pp. 645-651
Author(s):  
Sezer Çoban
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Performance Optimization ◽  
Flight Trajectory ◽  
Content Type ◽  
Lateral Dynamics ◽  
Aerial Vehicle ◽  
Improved Design ◽  
Autopilot Systems ◽  
First Time ◽  
Practical Implications

Purpose This paper aims to investigate the autonomous performance optimization of a research-based hybrid unmanned aerial vehicle (i.e. HUAV) manufactured at Iskenderun Technical University. Design/methodology/approach To maximize the autonomous performance of this HUAV, longitudinal and lateral dynamics were initially obtained. Then, the optimum magnitudes of the autopilot system parameters were estimated by considering the vehicle’s dynamic model and autopilot parameters. Findings After determining the optimum values of the longitudinal and lateral autopilots, an improved design for the autonomously controlled (AC) HUAV was achieved in terms of real-time flight. Practical implications Simultaneous improvement of the longitudinal and lateral can be used for better HUAV operations. Originality/value In this paper, the autopilot systems (i.e. longitudinal and lateral) of an HUAV are for the first time simultaneously designed in the literature. This helps the simultaneous improvement of the longitudinal and lateral flight trajectory tracking performances.

Vision-based pose estimation of a multi-rotor unmanned aerial vehicle

2019 ◽  
Vol 7 (3) ◽  
pp. 120-132
Author(s):  
Kashish Gupta ◽  
Bara Jamal Emran ◽  
Homayoun Najjaran
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Three Dimensional ◽  
Processing System ◽  
Training Procedure ◽  
Autonomous Landing ◽  
Content Type ◽  
Landing Platform ◽  
Aerial Vehicle ◽  
Autopilot Systems ◽  
Practical Implications

Purpose The purpose of this paper is to facilitate autonomous landing of a multi-rotor unmanned aerial vehicle (UAV) on a moving/tilting platform using a robust vision-based approach. Design/methodology/approach Autonomous landing of a multi-rotor UAV on a moving or tilting platform of unknown orientation in a GPS-denied and vision-compromised environment presents a challenge to common autopilot systems. The paper proposes a robust visual data processing system based on targets’ Oriented FAST and Rotated BRIEF features to estimate the UAV’s three-dimensional pose in real time. Findings The system is able to visually locate and identify the unique landing platform based on a cooperative marker with an error rate of 1° or less for all roll, pitch and yaw angles. Practical implications The proposed vision-based system aims at on-board use and increased reliability without a significant change to the computational load of the UAV. Originality/value The simplicity of the training procedure gives the process the flexibility needed to use a marker of any unknown/irregular shape or dimension. The process can be easily tweaked to respond to different cooperative markers. The on-board computationally inexpensive process can be added to off-the-shelf autopilots.

A “Learning from Action” workshop in Japan

2019 ◽  
Vol 40 (2) ◽  
pp. 77-83
Author(s):  
Robert Douglas Hinshelwood ◽  
Luca Mingarelli ◽  
Simona Masnata
Keyword(s):  
Far East ◽  
Opportunity To Learn ◽  
Content Type ◽  
Work Activities ◽  
Defensive Role ◽  
Feedback Data ◽  
Experiential Workshop ◽  
First Time ◽  
Practical Implications

Purpose Many people in severe mentally disturbed states do not use language or other symbolic media well or coherently. Therefore, the non-verbal medium needs to be understood by workers with such people. The “Learning from Action” experiential workshop was developed in order to provide an opportunity to learn about hidden messages in the relationships and roles occurring in activities. In August 2017, a workshop was run for the first time in Japan. The purpose of this paper is to report the experience and dynamics observed by the three consultants, who are here the authors of this paper. Design/methodology/approach After the workshop all the staff and members, including interpreters, were invited to give feedback. Findings Analysis of the feedback data showed certain important dynamics, concerning especially dependence, cultural defences and the defensive role of activity in a multicultural context. Research limitations/implications This is an initial experience to be followed up by later feedback and further workshops. Practical implications Workers awareness of non-verbal communication within the roles of work activities is a training possibility. It faces various resistances including the mental health assumptions of meaninglessness of any communication outside the verbal. Originality/value This is a method of training not widely used even in European countries, and is the first in a country in the far east.

scholarly journals How to evaluate sustainability of supply chains? A dynamic network DEA approach

2017 ◽  
Vol 117 (9) ◽  
pp. 1866-1889 ◽  
Author(s):  
Vahid Shokri Kahi ◽  
Saeed Yousefi ◽  
Hadi Shabanpour ◽  
Reza Farzipoor Saen
Keyword(s):  
Big Data ◽  
Supply Chains ◽  
Real World ◽  
Performance Optimization ◽  
Network Dynamic ◽  
Network Dea ◽  
Content Type ◽  
Dea Model ◽  
Proposed Model ◽  
First Time

Purpose The purpose of this paper is to develop a novel network and dynamic data envelopment analysis (DEA) model for evaluating sustainability of supply chains. In the proposed model, all links can be considered in calculation of efficiency score. Design/methodology/approach A dynamic DEA model to evaluate sustainable supply chains in which networks have series structure is proposed. Nature of free links is defined and subsequently applied in calculating relative efficiency of supply chains. An additive network DEA model is developed to evaluate sustainability of supply chains in several periods. A case study demonstrates applicability of proposed approach. Findings This paper assists managers to identify inefficient supply chains and take proper remedial actions for performance optimization. Besides, overall efficiency scores of supply chains have less fluctuation. By utilizing the proposed model and determining dual-role factors, managers can plan their supply chains properly and more accurately. Research limitations/implications In real world, managers face with big data. Therefore, we need to develop an approach to deal with big data. Practical implications The proposed model offers useful managerial implications along with means for managers to monitor and measure efficiency of their production processes. The proposed model can be applied in real world problems in which decision makers are faced with multi-stage processes such as supply chains, production systems, etc. Originality/value For the first time, the authors present additive model of network-dynamic DEA. For the first time, the authors outline the links in a way that carry-overs of networks are connected in different periods and not in different stages.

FATCA violation underlies latest US tax and securities fraud charges

2015 ◽  
Vol 16 (1) ◽  
pp. 74-76
Author(s):  
Miriam Fisher ◽  
Brian McManus
Keyword(s):  
Law Enforcement ◽  
Service Providers ◽  
Task Force ◽  
Tax Compliance ◽  
Financial Fraud ◽  
Securities Fraud ◽  
Content Type ◽  
The Impact ◽  
First Time ◽  
Practical Implications

Purpose – To explain the details and implications of a September 9, 2014 federal indictment, US v. Robert Bandfield, the first time a Foreign Account Tax Compliance Act (FATCA) violation has been charged as an “overt act” in furtherance of a tax conspiracy and securities fraud. Design/methodology/approach – Provides background, including the enactment of FATCA and the details of the indictment; describes an undercover investigation conducted by President Obama’s Financial Fraud Enforcement Task Force; and discusses the warnings this indictment sends to the global financial community. Findings – The indictment confirms the coordinated and aggressive tactics US law enforcement is now employing to investigate and prosecute offshore financial fraud. Practical implications – Banks and financial service providers need to be aware of the impact of enhanced US regulatory obligations and implement appropriate compliance measures. These institutions must also remain sensitive to risks presented by unscrupulous customers. Finally, they must be ready to manage appropriately information-gathering and investigatory inquiries originating with US authorities. Originality/value – Practical guidance from experienced tax controversy lawyers.

Responsibly regulating the civilian unmanned aerial vehicle deployment in India and Japan

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anjan Chamuah ◽  
Rajbeer Singh
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Regulatory Framework ◽  
Responsible Innovation ◽  
Primary Data ◽  
Snowball Sampling ◽  
Content Type ◽  
Current Scenario ◽  
Aerial Vehicle ◽  
Innovative Work ◽  
Trust Responsibility

Purpose The purpose of the paper is to describe the evolving regulatory structures of the civilian unmanned aerial vehicle (UAV) in India and Japan, not yet fully developed to regulate the deployment of the UAV. India and Japan are at the forefront to overhaul the respective regulatory framework to address issues of accountability, responsibility and risks associated with the deployment of UAV technologies. Design/methodology/approach In-depth interviews are conducted both in Japan and India to gather primary data based on the snowball sampling method. The paper addresses questions such as what is the current scenario of civilian UAV deployment in India and Japan. What are the regulation structures for Civil UAV deployment and operation and how they differ in India and Japan? What are the key regulatory challenges for Civil UAV deployment in India? How regulation structure enables or inhibits the users and operators of Civil UAVs in India? What are mutual learnings concerning UAV regulations? Findings Findings reveal that the Indian regulations address issues of responsibility by imparting values of privacy, safety, autonomy and security; Japanese regulation prefers values of trust, responsibility, safety and ownership with more freedom to experiment. Originality/value The study on civilian UAV regulatory framework is a new and innovative work embedded by the dimensions of responsibility and accountability from a responsible innovation perspective. The work is a new contribution to innovation literature looked at from regulatory structures. Field visits to both Japan and India enrich the study to a new elevation.

“Never the first time on a patient”: the stakes of high-fidelity simulation for safety training

2018 ◽  
Vol 32 (5) ◽  
pp. 23-25 ◽  
Author(s):  
Lucie Cuvelier
Keyword(s):  
Case Studies ◽  
Design Methodology ◽  
Reading Time ◽  
Safety Training ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
Content Type ◽  
Pertinent Information ◽  
First Time ◽  
Practical Implications

Purpose This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings An operative approach is described that is designed to structure the debriefing along three axes. Practical implications The paper provides strategic insights and practical thinking that have influenced some of the world’s leading organizations. Originality/value The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

Cooperatives: an alternative to water privatization in Greece

2014 ◽  
Vol 10 (2) ◽  
pp. 135-154 ◽  
Author(s):  
Ifigeneia Douvitsa ◽  
Demosthenis Kassavetis
Keyword(s):  
Design Methodology ◽  
Water Distribution ◽  
Water Privatization ◽  
Negative Effects ◽  
Content Type ◽  
Negative Results ◽  
Viable Solution ◽  
Water Provision ◽  
First Time ◽  
Practical Implications

Purpose – The aim of this article is to investigate the organization of water cooperatives in Greece for the first time, as promoted by a spontaneous social mobilization called Initiative 136. The above attempt appears as an alternative proposition as opposed to the state-driven full privatization of EYATH S.A. Design/methodology/approach – This article presents previous work on water cooperatives and the negative effects of water privatization worldwide, relating it to water privatization in Greek reality through the prism of the current recession. Findings – While full privatization under the pressure of the economic crisis is very likely to yield significantly negative results, a transformation into a water cooperative might provide a viable solution. Research limitations/implications – Water cooperatives provide a solution for water distribution that is friendly for the consumer, the society and the environment. Practical implications – Application of a cooperative method of water provision in Greece could be a springboard for the use of the model in other areas. Originality/value – The article evaluates the privatization and cooperativization attempt of EYATH S.A. based on previous related research and considering Greece ' s current conditions.

Large-cap vs small-cap portfolio performance: new empirical evidence from ETFs

2019 ◽  
Vol 18 (1) ◽  
pp. 71-94
Author(s):  
Gerasimos Rompotis
Keyword(s):  
Design Methodology ◽  
Portfolio Performance ◽  
Exchange Traded Funds ◽  
Investment Strategies ◽  
Time Data ◽  
Content Type ◽  
Risk Characteristics ◽  
The Usa ◽  
First Time ◽  
Practical Implications

PurposeA well-documented pattern in the literature concerns the outperformance of small-cap stocks relative to their larger-cap counterparts. This paper aims to address the “small-cap versus large-cap” issue using for the first time data from the exchange traded funds (ETFs) industry.Design/methodology/approachSeveral raw return and risk-adjusted return metrics are estimated over the period 2012-2016.FindingsResults are partially supportive of the “size effect”. In particular, small-cap ETFs outperform large-cap ETFs in overall raw return terms even though they fail the risk test. However, outperformance is not consistent on an annual basis. When risk-adjusted returns are taken into consideration, small-cap ETFs are inferior to their large-cap counterparts.Research limitations/implicationsThis research only covers the ETF market in the USA. However, given the tremendous growth of ETF markets worldwide, a similar examination of the “small vs large capitalization” issue could be conducted with data from other developed ETF markets in Europe and Asia. In such a case, useful comparisons could be made, so that we could conclude whether the findings of the current study are unique and US-specific or whether they could be generalized across the several international ETF markets.Practical implicationsA possible generalization of the findings would entail that profitable investment strategies could be based on the different performance and risk characteristics of small- and large-cap ETFs.Originality/valueThis is the first study to examine the performance of ETFs investing in large-cap stock indicesvis-à-visthe performance of ETFs tracking indices comprised of small-cap stocks.

Do we need medical leadership or medical engagement?

2015 ◽  
Vol 28 (3) ◽  
pp. 173-184 ◽  
Author(s):  
Peter Spurgeon ◽  
Paul Long ◽  
John Clark ◽  
Frank Daly
Keyword(s):  
Care Quality ◽  
Current Evidence ◽  
Organisational Performance ◽  
Content Type ◽  
Care Quality Commission ◽  
The Uk ◽  
Medical Leadership ◽  
First Time ◽  
Practical Implications ◽  
A Current

Purpose – The purpose of this paper is to address issues of medical leadership within health systems and to clarify the associated conceptual issues, for example, leadership versus management and medical versus clinical leadership. However, its principle contribution is to raise the issue of the purpose or outcome of medical leadership, and, in this respect, it argues that it is to promote medical engagement. Design/methodology/approach – The approach is to provide evidence, both from the literature and empirically, to suggest that enhanced medical engagement leads to improved organisational performance and, in doing so, to review the associated concepts. Findings – Building on current evidence from the UK and Australia, the authors strengthen previous findings that effective medical leadership underpins the effective organisational performance. Research limitations/implications – There is a current imbalance between the size of the databases on medical engagement between the UK (very large) and Australia (small but developing). Practical implications – The authors aim to equip medical leaders with the appropriate skill set to promote and enhance greater medical engagement. The focus of leaders in organisations should be in creating a culture that fosters and supports medical engagement. Social implications – This paper provides empowerment of medical professionals to have greater influence in the running of the organisation in which they deliver care. Originality/value – The paper contains, for the first time, linked performance data from the Care Quality Commission in the UK and from Australia with the new set of medical engagement findings.

Differences in implementing corporate social responsibility through SA8000 and ISO 26000 standards

2017 ◽  
Vol 28 (4) ◽  
pp. 438-457 ◽  
Author(s):  
Andrea Chiarini ◽  
Emidia Vagnoni
Keyword(s):  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
Manufacturing Companies ◽  
Content Type ◽  
Iso 26000 ◽  
Pros And Cons ◽  
Corporate Social ◽  
First Time ◽  
Financial Issues ◽  
Practical Implications

Purpose There are different ways of implementing a corporate social responsibility (CSR) system. One interesting way of implementing a CSR system is based on standards such as SA8000 and ISO 26000. The purpose of this paper is to investigate the differences brought by the two standards in European manufacturing in CSR implementation using a survey. Design/methodology/approach Eight hypotheses were derived from an analysis of the implementation pattern for a CSR management system revealed from a review of the literature as well as from the actual two investigated standards. A questionnaire based on these hypotheses was administered to the CSR managers of 326 European manufacturing companies. A χ2 and Cramer’s V-tests were used to validate the results. The CSR managers also added comments to their responses. The qualitative results gathered from the respondents’ comments helped the authors’ to better understand the quantitative data. Findings The results showed differences in how the standards affect strategies, economic and financial issues, stakeholders involved, environmental management, customer and market issues, supply chain management and CSR key performance indicators. The results indicated that it is not clear how production and technical departments can be involved in and committed to such standards or, in general, to a CSR system. Research limitations/implications The research is based on a sample of European manufacturing managers and limited to the implementation of two specific CSR standards. Practical implications The differences between the standards should be interesting to practitioners who are thinking of implementing a CSR system in a manufacturing context and weighing the pros and cons of each standard. Originality/value This research analyses, for the first time, the differences in CSR implementation brought by SA8000 and ISO 26000 in manufacturing and, in particular, in production and technical departments.

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