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1 – 10 of 17Pranay Vaggu and S.K. Panigrahi
The effect of spinning has been studied and analysed for different projectile shapes such as ogive, blunt, cylindrical and conical by using numerical simulations.
Abstract
Purpose
The effect of spinning has been studied and analysed for different projectile shapes such as ogive, blunt, cylindrical and conical by using numerical simulations.
Design/methodology/approach
Projectile shape is one of the important parameters in the penetration mechanism. The present study deals with the failure mechanisms and ballistic evaluation for different nose-shaped projectiles undergoing normal impact with spinning. Materials characterization has been made by Johnson–Cook strength and failure models, and LS-DYNA simulations are used to analyse the impact of steel projectiles on an Al 7075-T651 target at different impact velocities under normal impact conditions. The experimental results from the literature are used to validate the model. Based on the residual velocity values, the Recht-Ipson model has been curve-fitted and approximate ballistic limit velocity has been evaluated. The approximated ballistic limit velocity is found to be 3.4% higher than the experimental results and compared well with the experimental results. Subsequently, the validated model conditions are used to study and analyse the effect of spinning for different nose-shaped projectiles undergoing normal impact conditions.
Findings
The ductile hole failure is observed for the ogive nose projectile, petals are formed and fragmented for the conical projectile, and plugging is observed for cylindrical projectiles. A Recht-Ipson curve is presented for each spinning condition for each projectile shape and the ballistic limit has been evaluated for each condition.
Originality/value
The proposed research outputs are original and innovative and, have a lot of importance in defence applications, particularly in arms and ammunition.
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Muhammad Umer Azeem, Dirk De Clercq and Inam Ul Haq
This study investigates how employees' experience of resource-depleting workplace loneliness may steer them away from performance-enhancing work efforts as informed by their…
Abstract
Purpose
This study investigates how employees' experience of resource-depleting workplace loneliness may steer them away from performance-enhancing work efforts as informed by their propensity to engage in negative work rumination. It also addresses whether and how religiosity might serve as a buffer of this harmful dynamic.
Design/methodology/approach
The hypotheses tests rely on three-round survey data collected among employees who work in various organizations in Pakistan – a relevant country context, considering the importance of people's religious faith for their professional functioning and its high-uncertainty avoidance and collectivism, which likely make workplace loneliness a particularly upsetting experience.
Findings
An important channel through which a sense of being abandoned at work compromises job performance is that employees cannot “switch off” and stop thinking about work, even after hours. The role of this explanatory mechanism is mitigated, however, when employees can draw from their religious beliefs.
Practical implications
For human resource (HR) managers, this study pinpoints a notable intrusion into the personal realm, namely, repetitive thinking about work-related issues, through which perceptions of work-related loneliness translate into a reluctance to contribute to organizational effectiveness with productive work activities. It also showcases how this translation can be subdued with personal resources that enable employees to contain the hardships they have experienced.
Originality/value
This study helps unpack the connection between workplace loneliness and job performance by detailing the unexplored roles of two important factors (negative work rumination and religiosity) in this connection.
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Dao Truc Thi Vo, Malik Abu Afifa, Duong Van Bui, Hien Vo Van and Nha Nguyen
This paper aims to examine the nexus among cloud-based accounting (CBA), employee job performance (EJP) and operational performance (OPP) in the circumstances of Vietnam, an…
Abstract
Purpose
This paper aims to examine the nexus among cloud-based accounting (CBA), employee job performance (EJP) and operational performance (OPP) in the circumstances of Vietnam, an emerging nation. In which the authors examine EJP as a mediator variable inside the research model. Furthermore, the employee digital skills (EDS) factor is examined as a moderating variable for the CBA-EJP nexus and the CBA-OPP nexus, respectively.
Design/methodology/approach
The study’s sample was acquired through extensive screening methods. This study used email surveys to acquire data. The survey was sent to 1,200 chief financial officers of Vietnamese firms. For analysis, the ending pattern of 401 e-surveys was used.
Findings
By using partial least squares structural equation modeling, the results imply that the CBA has a favorable effect on EJP and OPP. Furthermore, EJP favorably mediates the linkage between CBA and OPP, whereas EDS play a significant moderator role in the CBA-EJP nexus and CBA-OPP nexus, respectively.
Practical implications
This study highlights the crucial role of human factors (i.e. EDS and EJP) for the internal modern applying behaviors (i.e. CBA) and firm value (i.e. OPP) of firms in emerging markets. Therefore, managers should scrutinize the performance of human factors in an essential interval to improve modern applied behaviors and make them more powerful, thus improving the OPP of their firms. Substantially, firm managers should focus on employing the EDS, which enhances the CBA-EJP nexus and the CBA-OPP nexus, respectively.
Originality/value
This study enlarges the OPP documentation by detailing the beneficial effects of human factors as well as the CBA. Furthermore, the study recognizes the effectiveness of EDS as a moderator variable in the context of developing economies. Finally, this work has been regarded as earlier empirical research that integrates all of the aforementioned components into a single model in emerging economies, particularly Vietnam.
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Marsela Thanasi-Boçe, Indri Dyrmishi and Selma Kurtishi-Kastrati
This chapter critically examines the unique challenges and opportunities faced by family-owned startups in emerging economies, a topic that has received limited attention in…
Abstract
This chapter critically examines the unique challenges and opportunities faced by family-owned startups in emerging economies, a topic that has received limited attention in existing literature. Recognizing the high failure rate of startups, particularly in family firms, this study seeks to understand the factors contributing to their success or failure. Employing a qualitative analysis, the chapter explores various economic, legal, and cultural dimensions that influence these businesses. It provides a comparative perspective, drawing insights from various emerging economies to identify patterns and differences in the experiences of family-owned startups. The chapter aims to fill the knowledge gap by offering a comprehensive view of the success and failure dynamics in family-owned startups, with a focus on strategic, managerial, and operational aspects. This approach offers valuable insights for both academics and practitioners, aiming to guide future research and practical interventions to support the sustainability and growth of family firms in these dynamic markets.
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Abhiraj Malia, Aurodeep Kamal, Bhubaneswari Bisoyi, Biswajit Das and Ipseeta Satpathy
This chapter explores into the understanding of poverty and mitigating the challenges by revisiting for a sustainable alleviation of the scales of economy. Eventually insufficient…
Abstract
This chapter explores into the understanding of poverty and mitigating the challenges by revisiting for a sustainable alleviation of the scales of economy. Eventually insufficient income and spending is the bastion of natural deprivation for household problems. Effective measures are critically examined to redefine the obstacles that are key to upliftment and eradication of poverty. It essentially aims to bridging the gap, analysing the SDG goals through a trend analysis for a time period. These strategies will introspect into overcoming the emerging areas of concern with a futuristic development. Evidently global challenges in the social, economic, political and cultural ecosystem require newness of intervention and initiatives to achieve the triple bottom line, revisiting the dimensions of poverty. Essentially it will anatomise into the causes and consequences of poverty through certain measuring yardsticks in the context of different economies globally. These social, economic, political, legal and technological interventions through their novel strategies can empower and create inclusion for the sharing of equitable wealth distribution, ensuring justice and supporting human rights, providing social security to the poorest of the poor. This study shall innovatively scan through the new entrepreneurship models to understand the skillsets across the globe in order to foster good governance in a win-win environment. Nevertheless, the aspects of poverty alleviation and sustainable order for mitigating the challenges of poverty shall be addressed in the spectrum of climate change and volatility, uncertainty, complexity and ambiguity (VUCA) environment. Basically, in review of the aforesaid dimensions, this study shall vividly examine on the Sustainable Developmental Goals (SDGs) pertaining to poverty alleviation worldwide to adjust for the seamless and uninterrupted continuation trend analysis of the periodic plans of action. It shall adjudge into the befitting global trend admissible under the uncertain future.
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Vamsi Desam and Pradeep Reddy CH
Several chaotic system-based encryption techniques have been presented in recent years to protect digital images using cryptography. The challenges of key distribution and…
Abstract
Purpose
Several chaotic system-based encryption techniques have been presented in recent years to protect digital images using cryptography. The challenges of key distribution and administration make symmetric encryption difficult. The purpose of this paper is to address these concerns, the novel hybrid partial differential elliptical Rubik’s cube algorithm is developed in this study as an asymmetric image encryption approach. This novel algorithm generates a random weighted matrix, and uses the masking method on image pixels with Rubik’s cube principle. Security analysis has been conducted, it enhances and increases the reliability of the proposed algorithm against a variety of attacks including statistical and differential attacks.
Design/methodology/approach
In this light, a differential elliptical model is designed with two phases for image encryption and decryption. A modified image is achieved by rotating and mixing intensities of rows and columns with a masking matrix derived from the key generation technique using a unique approach based on the elliptic curve and Rubik’s cube principle.
Findings
To evaluate the security level, the proposed algorithm is tested with statistical and differential attacks on a different set of test images with peak signal-to-noise ratio, unified average changed intensity and number of pixel change rate performance metrics. These results proved that the proposed image encryption method is completely reliable and enhances image security during transmission.
Originality/value
The elliptic curve–based encryption is hard to break by hackers and adding a Rubik’s cube principle makes it even more complex and nearly impossible to decode. The proposed method provides reduced key size.
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Tanushree Gupta, Jennifer Fernandes and Susobhan Maiti
Food security emerges when all people always have physical and economic access to sufficient, safe, and nutritious food to meet their dietary needs and food preferences for an…
Abstract
Food security emerges when all people always have physical and economic access to sufficient, safe, and nutritious food to meet their dietary needs and food preferences for an active and healthy life. The availability of food, access to food, and absorption of food are three key aspects of food security. Considering the above, the initial goal in this chapter is to measure annual growth rate and compound annual growth rate (CAGR) of production of food grains, nutri coarse cereals, total pulses, and nine oilseeds for the period 2011–2021 in India. To estimate per capita availability of Food Grains, Nutri Coarse Cereals, Total Pulses and Nine Oilseeds (in kg) represents the food security in India. The highest production is recorded in between 2011 and 2021 for food grains (315.72), followed by the production of nine oil seeds (36.7), total pulses (27.69), and nutri coarse cereals (26.42). In 2016, the annual growth rate for food grains and nine oilseeds was 9.37 and 23.88%, respectively. It is very evident that the availability per capita has grown from 2011 to 2021. The per capita availability of food grains increased from 206.17 kg in 2011 to 224.30 kg in 2021. The per capita availability of total pulses increased from 13.59 kg in 2011 to 19.67 kg in 2021. The per capita availability of nine oil seeds increased from 23.70 kg in 2011 to 26.78 kg in 2021 which indicates India has managed food security successfully in the last decade.
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Tinotenda Machingura, Ashleigh Tatenda Muyavu and Olufemi Adetunji
Many firms have adopted different methodologies such as lean management to increase customer satisfaction. This is because they need to respond to customer demands for improved…
Abstract
Purpose
Many firms have adopted different methodologies such as lean management to increase customer satisfaction. This is because they need to respond to customer demands for improved products and responsive service. This study aims to evaluate the influence of soft lean practices (SLP) on business performance in the service sector.
Design/methodology/approach
Out of 702 questionnaires distributed to various service companies in Zimbabwe, 260 valid responses were received. Structural equation modeling was used to assess the relationship among the factors of the proposed model.
Findings
The implementation of SLP leads to improvement in the business performance of the service companies. However, the impact of SLP on business performance is mainly indirect, mediated by customer satisfaction.
Research limitations/implications
The research focused on the implementation of SLP in the service industry of a developing country; hence, the results obtained may require further investigations before generalization to other countries with different sociocultural contexts is made.
Originality/value
Most previous studies focused mainly on the implementation of the technical lean practices in the manufacturing industry without properly acknowledging the importance of SLP. This research investigates the importance of SLP in the service sector and further explores the mediatory role of customer satisfaction on business performance. The findings also validate the service-profit-chain theory.
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Vartika Bisht, Priya, Sanjay Taneja and Amar Johri
Purpose: Health insurance and big data analytics have become increasingly intertwined in recent years, offering both opportunities and challenges for the industry. Thus, the…
Abstract
Purpose: Health insurance and big data analytics have become increasingly intertwined in recent years, offering both opportunities and challenges for the industry. Thus, the primary aim is to utilize bibliometric analysis for comprehensive literature reviews in health insurance and big data analytics.
Design/methodology/approach: Scopus, chosen for its broad coverage, is utilized to extract 493 manuscripts meeting the inclusion criteria set (year and language) for a 25-year period. The tools employed in the study include VOSViewer and Biblioshiny package (R-programming).
Findings: An emerging trend has been observed in the field of health insurance and big data analytics for 25 years. The US has been observed as the topmost leading country to contribute to the subject under study. The Ministry of Science and Technology of Taiwan is at the top first rank of top leading institutions contributing 20 documents to the field of health insurance and big data analytics. Moreover, thematic mapping and word cloud is done to find the most relevant keywords in the study. Furthermore, co-occurrence analysis revealed the relationship of keywords for health insurance and big data mining.
Implications: The implications of the research extend beyond academic insights and have practical implications for stakeholders involved in healthcare policy, practice, and research.
Originality/Value/Implications: The novelty in the manuscript has been brought in by focusing on one of the many types of insurance, i.e., health. Moreover, big data analytics in relation to health insurance for such a range of time period serves as the original presentation of the work with regards to the matter under study.
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With the most recent change in the industrial model toward the Fourth Industrial Revolution, or Industry 4.0, the advancements in digitalization and information and communication…
Abstract
With the most recent change in the industrial model toward the Fourth Industrial Revolution, or Industry 4.0, the advancements in digitalization and information and communication technology (ICT) have opened up opportunities for a smart logistics revolution. A comprehensive conceptualization that directs the rapidly approaching structural shift in reverse logistics is currently lacking, despite the fact that the research has been focusing intensively on improving the intelligence, autonomy, and connection of isolated logistical operations with an emphasis on the forward channels. To address this gap, this conceptual chapter offers a thorough analysis of the technological implications of the Fourth Industrial Revolution on the reverse logistics process in addition to a comprehensive definition of reverse logistics 4.0.
This chapter explores the dynamic intersection of reverse logistics, closed-loop systems, and Industry 4.0 technologies within the supply chains of the United Arab Emirates. By explicating the critical role of Industry 4.0, in the promotion of sustainability, the goal of this chapter is to facilitate UAE supply chain participants to adopt creative approaches to sustainable resource management. This study also contributes to the wider global discussion on sustainable supply chain management techniques, opening avenues for an ecologically friendly and resource-conscious industrial environment in the United Arab Emirates.
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