Anwar ul-Haque, Waqar Asrar, Ashraf Ali Omar, Erwin Sulaeman and JS Mohamed Ali
Realistic data bank of aerodynamic and stability derivatives is still missing for hybrid buoyant aerial vehicles. Such vehicles take-off and land similar to an aircraft with their…
Abstract
Purpose
Realistic data bank of aerodynamic and stability derivatives is still missing for hybrid buoyant aerial vehicles. Such vehicles take-off and land similar to an aircraft with their partial weight balanced by the aerostatic lift. The purpose of this paper is to use wind tunnel testing for a better understanding of the aerodynamic and static stability behavior of such vehicles.
Design/methodology/approach
The effect of wing on the aerodynamic and static stability characteristics of a clean configuration hybrid buoyant is analyzed. The free stream velocity is 20 m/s, and ranges of angle of attack and side slip angle are from −8° to 12° and ±16°, respectively. Data are corrected to account for the effect of strut interference and zero load condition. The maximum blockage of the model with respect to the cross-section area of the test section is about 2.7 per cent.
Findings
A hybrid model manufactured by using wood and metal is an optimum solution with less number of parts. The vehicle is statically, longitudinally and directionally stable. Wings designed to fulfill the partial requirement of lift contribute significantly to counter the huge moment generated by the voluminous hull for centre of gravity location ahead of the leading edge of the wing.
Research limitations/implications
There are number of manufacturing constraints for scaling down a model of a hybrid buoyant aerial vehicle configuration. Specially, the thickness of the wing limits the testing envelop of angle of attack and free stream velocity.
Practical implications
The data presented here are a preliminary guide for further work on larger size models. The data may also be used to build and perform flight tests on small full-scale instrumented models and to obtain flight dynamics data.
Originality/value
The estimated aerodynamic and stability derivatives and slopes can be utilized in future for multidisciplinary design.
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The Prophet Muhammad (pbuh) laid the foundations of the Islamic state in Medina in 622 A.D. The state expanded gradually during the 10‐year rule of the Prophet (pbuh). The Arabian…
Abstract
The Prophet Muhammad (pbuh) laid the foundations of the Islamic state in Medina in 622 A.D. The state expanded gradually during the 10‐year rule of the Prophet (pbuh). The Arabian Peninsula and Southern Palestine were conquered during that period. The state expanded enormously during the reign of Umar (RA). Many countries of the Roman and Persian empires comprising an area of more than 2.2 million were annexed. Historians have noted that this framework played a vital role in integrating these people which in turn strengthened the state.
Omar Masood and Muhammad Ashraf
The purpose of this paper is to inspect whether bank‐specific and macro‐economic determinants influence Islamic banks' profitability in the selected countries of different regions.
Abstract
Purpose
The purpose of this paper is to inspect whether bank‐specific and macro‐economic determinants influence Islamic banks' profitability in the selected countries of different regions.
Design/methodology/approach
In order to achieve the study objective and to answer the question, the balanced panel data regression model has been used. Bank level data is used and this study examines the alternative measures ROA and ROE as a bank‐specific function and macro‐economic determinants.
Findings
The study results signify that banks with larger assets size and with efficient management lead to greater return on assets.
Originality/value
The paper shows that management efficiency regarding operating expenses positively and significantly affects the banks' profitability.
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Keywords
Hanif Atmar's credibility as a presidential contender.
Details
DOI: 10.1108/OXAN-DB238744
ISSN: 2633-304X
Keywords
Geographic
Topical
The purpose of this paper is to examine consumer behavior toward halal food purchase in Bangladesh. Specifically, how do individual beliefs about trustworthiness of the halal food…
Abstract
Purpose
The purpose of this paper is to examine consumer behavior toward halal food purchase in Bangladesh. Specifically, how do individual beliefs about trustworthiness of the halal food products affect individual intentions to purchases and actual purchasing behavior?
Design/methodology/approach
To answer this question, a theoretical framework using the theory of planned behavior (TPB) as its basis was established. Using measurement scales created to assess different aspects of trustworthiness, and perceived behavioral control and subjective norms, a survey instrument was developed to test the various relationships implied by TPB. Data were collected from the households located in the metropolitan city of Dhaka during the months of November and December 2017, and the analysis of this data helps answer questions about the different relationships of the constructs of the study.
Findings
The findings of the study revealed that four factors, namely, trustworthiness, attitude, normative structure and self-efficacy, significantly influence halal food purchasing. The results also demonstrated that trustworthiness of halal food is one of the most important variables of food marketing in Bangladesh.
Research limitations/implications
In reality, there is a serious lacking of halal food marketing particularly in Bangladesh. In this respect, this study can be a pioneer one and may have some limitations in terms of research procedures.
Practical implications
It is crucial for the halal food marketing and its management organizations to provide their products and services in Islamic way, because it is different from the conventional way of modern marketing.
Social implications
This result specifically implies that like normative structure and self-efficacy, trust in the authenticity of halal food is particularly important to influence attitude toward halal food purchase in Bangladesh.
Originality/value
This study is perhaps the first study in the context of Bangladesh food market that deals with the halal food purchase behavior of the consumers. In this regard, the findings of the study are important in Islamic marketing and halal food marketing.
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Ataul Karim Patwary, Nor Rabiatul Adawiyah Nor Azam, Muhammad Umair Ashraf, Abdullah Muhamed Yusoff, Waqas Mehmood and Md Karim Rabiul
The purpose of this study is to examine the role of knowledge management practices, organisational commitment and capacity building on employee performance in the hotel industry…
Abstract
Purpose
The purpose of this study is to examine the role of knowledge management practices, organisational commitment and capacity building on employee performance in the hotel industry. This study also investigated the mediating role of organisational commitment and capacity building between knowledge management practices and employee performance.
Design/methodology/approach
A quantitative approach and questionnaire survey were used to collect data from hotel employees from Malaysia. Self-administered questionnaires were distributed to collect data from 291 participants, and partial least squares structural equation modelling was used to analyse the hypotheses.
Findings
The results of this study confirm that knowledge management practices positively and significantly affect knowledge-employee performance. Employees achieve this performance through the mediating influence of organisational commitment and capacity building culture.
Practical implications
This study offers several implications for Malaysian practitioners and policymakers regarding learning and knowledge management practices in the hospitality industry. The results suggest that organisations can manage knowledge assets and key processes of the organisational environment to create and use knowledge to improve sustainable employee performance through knowledge management practices.
Originality/value
This study sheds light on the knowledge management literature by examining the effect of knowledge management practices on organisational commitment, particularly in the hospitality industry in Malaysia.
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Diego Norena-Chavez and Eleftherios Thalassinos
This research aimed to determine the mediating effect of entrepreneurial self-efficacy on the relationship between entrepreneurial passion and leadership styles. Two hundred…
Abstract
This research aimed to determine the mediating effect of entrepreneurial self-efficacy on the relationship between entrepreneurial passion and leadership styles. Two hundred hardware and footwear entrepreneurs from the Las Malvinas Commercial Emporium, Lima, Peru were surveyed. The partial least squares structural equation modelling (PLS-SEM) multivariate statistical technique was applied for data analysis. It was found that there is a complementary mediating effect of entrepreneurial self-efficacy in the relationship between entrepreneurial passion and leadership styles. On the other hand, it was concluded that entrepreneurial passion has a positive influence on entrepreneurial self-efficacy. Likewise, there is a positive influence of entrepreneurial self-efficacy on leadership styles, and there is a positive influence of entrepreneurial passion for leadership styles. This research contributed theoretically to the academic literature and provided empirical evidence of the relationship of the proposed variables; it proved a new predictive and explanatory structural model that can now be used in future research worldwide and generated a model of the studied variables that are useful for both academia and the business world.
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Fahmi Bin Adilah, Mohd Zamre Mohd Zahir, Hasani Mohd. Ali and Muhamad Sayuti Hassan
The objectives of this study are to analyse the present Malaysian law regarding money laundering, to identify advantages and disadvantages of the current anti-money laundering…
Abstract
Purpose
The objectives of this study are to analyse the present Malaysian law regarding money laundering, to identify advantages and disadvantages of the current anti-money laundering law, to analyse its impact on the public sector and the private sector and to make recommendations on any improvements that should be made.
Design/methodology/approach
This study will use a qualitative method where the literature review method applies to collect primary and secondary data regarding anti-money laundering laws. Data has been collected from the various provisions of laws and text reading, such as books, articles, journals, law cases and thesis regarding anti-money laundering laws and those analysed with the content analysis method and the critical analysis method.
Findings
This study found that Malaysia has one law regarding anti-money laundering and they have control over individual and corporate entities in Malaysia.
Originality/value
This study found that Malaysia has one law regarding anti-money laundering and they have control over individual and corporate entities in Malaysia.
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Liaquat Ali Lund, Zurni Omar and Ilyas Khan
The purpose of this study is to find the multiple branches of the three-dimensional flow of Cu-Al2 O3/water rotating hybrid nanofluid perfusing a porous medium over the…
Abstract
Purpose
The purpose of this study is to find the multiple branches of the three-dimensional flow of Cu-Al2 O3/water rotating hybrid nanofluid perfusing a porous medium over the stretching/shrinking surface. The extended model of Darcy due to Forchheimer and Brinkman has been considered to make the hybrid nanofluid model over the pores by considering the porosity and permeability effects.
Design/methodology/approach
The Tiwari and Das model with the thermophysical properties of spherical particles for efficient dynamic viscosity of the nanoparticle is used. The linear similarity transformations are applied to convert the partial differential equations into ordinary differential equations (ODEs). The system of governing ODEs is solved by using the three-stage Lobatto IIIa scheme in MATLAB for evolving parameters.
Findings
The system of governing ODEs produces dual branches. A unique stable branch is identified with help of stability analysis. The reduced heat transfer rate has been shown to increase with the reduced
Originality/value
Dual branches of the three-dimensional flow of Cu-Al2 O3/water rotating hybrid nanofluid have been found. Therefore, stability analysis of the branches is also conducted to know which branch is appropriate for the practical applications. To the best of the authors’ knowledge, this research is novel and there is no previously published work relevant to the present study.