The effect of hull fineness ratio and fin parameters on the optimization of tethered aerostat

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Khurrum Mahmood ◽  
Norilmi Amilia Ismail
Keyword(s):  
Design Methodology ◽  
Simultaneous Optimization ◽  
High Fidelity ◽  
Design Code ◽  
Empirical Relationships ◽  
Content Type ◽  
Future Studies ◽  
Aerodynamic Model ◽  
Design Variables ◽  
Aerodynamic Lift

Purpose This paper aims to optimize the mass of a tethered aerostat to achieve optimum hull volume, and fins to generate aerodynamic lift to reduce the blow-by. Design/methodology/approach The design code of aerostat involving structure, aerostatics, aerodynamics and stability has been developed using MATLAB®. The design code is used to obtain the baseline configuration for a tactical aerostat mission by using the statistical values of the hull fineness ratio and the fin parameters of in-service aerostats. The effect of the design variables that include the hull fineness ratio, fin area and fin position on the aerostat mass and blow-by is determined through sensitivity analysis. The aerostat is optimized with an objective function of minimization of mass for the bounded values of design variables and taking blow-by limit as a constraint. Findings This study reveals that the simultaneous optimization of the aerostat hull fineness ratio, fin area and fin position results in an improvement in the design. The aerostat design with optimum values of these parameters helps in a reduction in its size and mass without compromising the blow-by limits. Research limitations/implications This study has been conducted by keeping the hull shape constant by selecting standard National Physics Laboratory envelope shape. The aerodynamic model used in the design code is based on empirical relationships that can be improved in future studies that can use high fidelity aerodynamic models using CFD based surrogate models. Originality/value The previous studies on optimization of aerostats are limited to hull envelope shape only, whereas this paper presents the optimization of the hull and fin together. The optimized configuration obtained has a reduced mass and can operate within the specified blow-by limits.

Perceptions of time at work

2016 ◽  
Vol 45 (1) ◽  
pp. 29-50 ◽  
Author(s):  
Aristides Isidoro Ferreira ◽  
Joana Diniz Esteves
Keyword(s):  
Gender Differences ◽  
Design Methodology ◽  
Internet Use ◽  
The Internet ◽  
Content Type ◽  
Future Studies ◽  
Work Related ◽  
Phone Calls ◽  
Working Day ◽  
The Relationship

Purpose – Activities such as making personal phone calls, surfing on the internet, booking personal appointments or chatting with colleagues may or may not deviate attentions from work. With this in mind, the purpose of this paper is to examine gender differences and motivations behind personal activities employees do at work, as well as individuals’ perception of the time they spend doing these activities. Design/methodology/approach – Data were obtained from 35 individuals (M age=37.06 years; SD=7.80) from a Portuguese information technology company through an ethnographic method including a five-day non-participant direct observation (n=175 observations) and a questionnaire with open-ended questions. Findings – Results revealed that during a five-working-day period of eight hours per day, individuals spent around 58 minutes doing personal activities. During this time, individuals engaged mainly in socializing through conversation, internet use, smoking and taking coffee breaks. Results revealed that employees did not perceive the time they spent on non-work realted activities accurately, as the values of these perceptions were lower than the actual time. Moreover, through HLM, the findings showed that the time spent on conversation and internet use was moderated by the relationship between gender and the leisure vs home-related motivations associated with each personal activity developed at work. Originality/value – This study contributes to the literature on human resource management because it reveals how employees often perceive the time they spend on non-work related activities performed at work inaccurately. This study highlights the importance of including individual motivations when studying gender differences and personal activities performed at work. The current research discusses implications for practitioners and outlines suggestions for future studies.

“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.

A model bridging team brand experience and sponsorship brand experience

2017 ◽  
Vol 18 (4) ◽  
pp. 380-399 ◽  
Author(s):  
Rui Biscaia ◽  
Galen Trail ◽  
Stephen Ross ◽  
Masayuki Yoshida
Keyword(s):  
Conceptual Framework ◽  
Design Methodology ◽  
Reference Lists ◽  
Brand Experience ◽  
Content Type ◽  
Future Studies ◽  
Sponsorship Effectiveness ◽  
Comprehensive Search ◽  
Comprehensive Framework ◽  
Team Brand

Purpose Previous research has focused on the antecedents of fan loyalty or the link between fans and the team on sponsorship reactions, but no comprehensive framework has been developed to combine these perspectives. The purpose of this paper is to present an integrated framework of how team brand experience during the season impacts sponsorship brand experience. Design/methodology/approach To create the conceptual model, a comprehensive search of peer-reviewed articles was conducted in electronic databases and journal reference lists. The authors identified constructs from prior research aimed at understanding sponsorship effectiveness. These constructs not only included aspects of the sponsorship brand experience, but also aspects within the team brand experience that form the link between consumers’ responses derived from team-related stimuli and the responses evoked by sponsor-related stimuli. Findings This conceptual framework yields a set of 11 propositions regarding fans’ interactions with both team and sponsorship brands highlighting how to strengthen the bond between fans, teams, and sponsors. It provides a comprehensive understanding of this phenomenon and identifies opportunities to increase fan support and the appeal of professional teams to potential sponsors. Originality/value This study extends previous research by providing a unique conceptual framework that highlights the importance of understanding how fans view both the team brand and the sponsor brand. Several suggestions for future studies and strategies to increase the benefits for both teams and sponsors can be drawn from this framework.

Two decades of business negotiation research: an overview and suggestions for future studies

2017 ◽  
Vol 32 (4) ◽  
pp. 487-504 ◽  
Author(s):  
Henrik Agndal ◽  
Lars-Johan Åge ◽  
Jens Eklinder-Frick
Keyword(s):  
Literature Review ◽  
Design Methodology ◽  
Theoretical Models ◽  
Research Field ◽  
Statistical Testing ◽  
Content Type ◽  
Business Negotiation ◽  
Future Studies ◽  
Negotiation Research ◽  
Practical Implications

Purpose This paper aims to present a review of articles on business negotiation published between 1995 and 2015. Design/methodology/approach This literature review is based on 490 articles on business negotiation. Findings When analyzing the conceptual underpinnings of this field, two paradigms emerge as dominant. The most prominent paradigm is a cognitive, psychological approach, typically relying on experiments and statistical testing of findings. The second dominating paradigm is a behavioral one, largely concerned with mathematical modeling and game-theoretical models. Practical implications Besides offering a description of the characteristics adhered to the business negotiation field, this paper will also suggest recommendations for further research and specify areas in which the research field needs further conceptual and empirical development. Originality/value This literature review serves to be the first representation of the characteristics adhered to the budding research field of business negotiation.

What jokes about entrepreneurs tell us about how humour may shape and de-legitimise public perceptions of entrepreneurial identity

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Robert Smith ◽  
Lorraine Warren
Keyword(s):  
Learning Outcomes ◽  
Design Methodology ◽  
Public Perception ◽  
Public Perceptions ◽  
Future Research ◽  
Complex Nature ◽  
Content Type ◽  
Future Studies ◽  
The Public ◽  
Research Stage

PurposeHumour and, in particular, jokes have received little serious academic scrutiny in the entrepreneurship literature to date. To address this, the purpose of this paper is to examine publicly available jokes about entrepreneurs to establish what such jokes tell us about how humour, particularly entrepreneur jokes shapes public perceptions of entrepreneurial identity. This is important because humour may be an integral part of an individual's entrepreneurial identity. The authors thus contribute to understandings of the complex nature of entrepreneurial identity and how public perceptions of humour influence such by encapsulating negative public perception of entrepreneurs which may act as a de-legitimisation mechanism.Design/methodology/approachFrom a representative sample of entrepreneur jokes located on the web using netnographic techniques, the authors apply a multi-disciplinary framework to analyse the material and its messages to establish how such jokes shape public perceptions.FindingsThe findings suggest that jokes convey a pejorative message about how entrepreneurs are perceived by the public with the content and message of the jokes being negative and derogatory. Common themes contained in the punchlines include – criminality, greed, dishonesty, hubris, stupidity, misfortune, ridicule and deviousness – all of which may de-legitimise generic entrepreneurial identity. In the process, the authors uncovered liminal aspects of joke telling and consumption in that the perception of jokes about entrepreneurs relate to the time and context in which the joke is told given that situational cleverness is a key facet of such jokes. In addition, the authors discuss variations across jokes.Research limitations/implicationsThe authors discuss learning outcomes for future research and potential future studies into humour in an entrepreneurial context.Originality/valueThis study places humour and joking on the research stage, making an incremental contribution. The authors add to the literature on the use of entrepreneurial humour and in particular in relation to how jokes influence public perception of entrepreneurs. From the data collected, the authors develop some fresh insights into the variation and range of entrepreneurship related jokes accessible online.

Paying a premium for an accounting crime

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lita – Dharmayuni ◽  
Lita – Dharmayuni
Keyword(s):  
Design Methodology ◽  
Third Parties ◽  
Literature Study ◽  
Content Type ◽  
Future Studies ◽  
The Public ◽  
Law And Legislation ◽  
Accounting Reports ◽  
Practical Implications ◽  
Over Time

Purpose This study aims to look at how the intention of a person when facing a dilemma to choose a good outcome (utilitarian) or a good and ethical process regardless of the outcome (deontological) by raising the case of PT. Asuransi Jiwasraya (Jiwasraya). Design/methodology/approach This study was conducted using a literature study method where researchers will analyze through previous research and news related to ethics, psychology and Jiwasraya cases. Findings In the Jiwasraya case, it can be said that the deontology principle has been violated, but the utilitarian principle also cannot provide benefits to the parties who should benefit, namely, the premium payers and the owners of third parties funds. In terms of intentions, at first, Jiwasraya’s management may intend to save and provide benefits to customers and the public who deposit funds at Jiwasraya (utilitarian principle). However, over time, managers choose to “allow” conditions to occur and even begin to engage in activities to take advantage of certain parties and groups by taking policies that are not by the rules (violating deontological principles) for personal gain. Research limitations/implications This study only discusses the Jiwasraya case through financial and accounting reports. Future studies can continue this research by looking at the Jiwasraya case through the law and legislation to obtain a complete picture. Practical implications With this research, it is hoped that the authors can better understand that the dilemma the author faces is rooted in the limitations of the abilities as humans; the ethics will influence all intentions for the choices the authors make. Originality/value This research uses case studies that occurred in Indonesia, the discussion is carried out using a utilitarian and deontological approach that has never been discussed regarding the Jiwasraya case before.

Expanding international business research on foreignness

2014 ◽  
Vol 37 (12) ◽  
pp. 1018-1025 ◽  
Author(s):  
Arpita Joardar ◽  
Tatiana Kostova ◽  
Sibin Wu
Keyword(s):  
International Business ◽  
Research Agenda ◽  
Design Methodology ◽  
Business Research ◽  
Content Type ◽  
Future Studies ◽  
International Business Research

Purpose – The purpose of this paper is to present our viewpoint on the research on foreignness and provide directions for future studies. We suggest that research on foreignness can be expanded by exploring its complexity. Design/methodology/approach – This article takes the form of a viewpoint. Findings – We identify three facets of foreignness – foreignness effect (liabilities or assets) foreignness level (organizational or individual) and foreignness locus (external or internal to an entity), which have not been sufficiently examined in prior research. Originality/value – We discuss how these aspects can inform a novel research agenda in this area.

What images and content do professional dietitians share via Instagram?

2018 ◽  
Vol 48 (6) ◽  
pp. 940-948
Author(s):  
Elif Inan-Eroglu ◽  
Zehra Buyuktuncer
Keyword(s):  
Social Media ◽  
Design Methodology ◽  
Descriptive Analysis ◽  
Easy Access ◽  
Food Category ◽  
Content Type ◽  
Future Studies ◽  
The Social ◽  
Access To Knowledge

Purpose In the age of information, where people can have an easy access to knowledge, the ethical and content-based examination of dietitians’ sharing in the social media is an important step in determining what to share in the social media in the future. The purpose of this study was to analyse the content of Instagram shares of dietitians, a profession group that is becoming more and more widespread in Turkey. Design/methodology/approach Publicly available dietitian Instagram profiles, aiming specifically at those with =500 followers, were included in the study. The hashtag was chosen as #onlinediyet (Turkish for online diet). A total of 1,986 images were identified for analysis. When these images were identified, 883 images were excluded. Thus, overall 1,103 Instagram images were chosen to analyse during a week’s period. Each Instagram image was classified into one of seven categories by authors as food, individual, nutrition information, motivational, miscellaneous, physical activity and recipe. Food and individual groups were also coded into subgroups. Findings A descriptive analysis of the 1,103 online-diet-related images shared by dietitians showed that 53.5 per cent of the images were in food category. There were no differences between female and male dietitians in terms of categories of shared images (p > 0.05). Dietitians also shared individual images (34.5 per cent) including weight loss follow-up (56.2 per cent), self-portrait (22.0 per cent) and conversation with clients (14.0 per cent) images on Instagram. Originality/value The results of this study set a baseline for future studies. Given the rapid growth of this platform in recent years, not only the field of dietetics but also other health-care fields would benefit from clear guidelines about what information can or cannot be shared on social media.

Development and optimization of coffee gelato: a sensory perspective

2019 ◽  
Vol 121 (5) ◽  
pp. 1116-1124
Author(s):  
Maísa Mancini Matioli de Sousa ◽  
Fabio Antonialli ◽  
Rafaela Corrêa Pereira ◽  
Michele Nayara Ribeiro ◽  
Fabiana de Carvalho Pires ◽  
...  
Keyword(s):  
Design Methodology ◽  
Sensory Attributes ◽  
Purchase Intentions ◽  
Optimal Concentration ◽  
Consumer Acceptance ◽  
Specific Information ◽  
Content Type ◽  
Future Studies ◽  
Different Types ◽  
Soluble Coffee

PurposeThe purpose of this paper is to optimise and characterise the sensory aspects of gelatos flavoured with different types of coffee preparations (brewed, espresso and soluble), to select the most acceptable formulation and investigate the influence of hedonic claims on the consumer acceptance of this product.Design/methodology/approachFirst, the optimal concentration of each coffee type (brewed, soluble and espresso) to be added to the gelato was determined using the just-about-right scale. Second, the acceptance and purchase intentions towards gelatos flavoured with different concentrations of each type of coffee were determined. Finally, the most acceptable concentration for each flavour was selected based on purchase intentions and three other hedonic claims (i.e. texture, flavour and overall impression).FindingsThe estimated optimal concentrations of coffee (in relation to syrup) were found to be 111.09, 135.31 and 59.38 per cent for brewed, espresso and soluble coffee, respectively. Gelatos flavoured with soluble coffee were accepted more readily and associated with higher purchase intentions based on the evaluated sensory attributes (i.e. colour, taste, texture, softness and overall impression). The sensory perceptions towards these gelatos did not change significantly based on the evaluated hedonic claims (“coffee”, “soluble coffee” and “gourmet coffee”). This reveals that consumers may not be influenced by specific information and/or hedonic claims in the case of coffee gelatos.Originality/valueBesides encouraging the availability of a variety of coffee products on the market, this work also supports future studies aimed at the optimization of coffee products from a sensory perspective.

Counterfeiting: conceptual issues and implications for branding

2019 ◽  
Vol 28 (6) ◽  
pp. 707-719 ◽  
Author(s):  
Bradley P. Evans ◽  
Richard G. Starr ◽  
Roderick J. Brodie
Keyword(s):  
Research Agenda ◽  
Design Methodology ◽  
Multiple Stakeholders ◽  
Content Type ◽  
Future Studies ◽  
Integrative Framework ◽  
Brand Protection ◽  
Collaborative Processes ◽  
Product Counterfeiting ◽  
Practical Implications

Purpose This paper aims to apply a broader perspective of branding to foster new insights and develop strategies to address product counterfeiting. Design/methodology/approach A review of the counterfeiting and branding literature leads to the development of a new conceptual framework that incorporates proactive, collaborative processes, in addition to the traditional product branding approach. Findings The integrative framework provides a basis to develop innovative, proactive strategies that complement traditional branding approaches to address product counterfeiting. The complexity of an integrative framework (or network) offers more opportunities for the firm to co-create robust meaning with multiple stakeholders. Identity elements are readily copied, whereas meanings are not. These strategies help to control counterfeiting by developing deep and inimitable relationships between managers and other stakeholders in a marketing network. Research limitations/implications A research agenda is proposed to structure future studies on counterfeiting. Practical implications The framework outlines how to leverage collaboration between managers and brand stakeholders to complement conventional approaches to control counterfeiting based on traditional product branding. Originality/value This paper contributes to the growing body of counterfeiting and brand protection literature by adapting and applying contemporary integrative branding concepts, leading to novel strategies to address the issue.

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