Minglu Chi, Shuaibing Chang, Zuhua Guo, Qiang Zhao, Guomiao Zhang and Fei Meng
To improve the localization accuracy of the magnetically controlled capsule endoscope (MCCE), a new localization method, based on the magnetic dipole model, is proposed, where the…
Abstract
Purpose
To improve the localization accuracy of the magnetically controlled capsule endoscope (MCCE), a new localization method, based on the magnetic dipole model, is proposed, where the anti-disturbance permanent magnet (APM) is used as the source of stable magnetic field, thus reducing the interference of the geomagnetic field or the electric conductor magnetic field in the system.
Design/methodology/approach
The coupling magnetic force model between the APM and the capsule endoscope is established to obtain the magnetic force relationship and magnetic induction intensity. Along the three axes, magnetic induction intensity data are collected by a 3 × 3 sensor array composed of nine magnetic field intensity sensors, while the data are uploaded to the main computer by the STM32F103C8T6 control board over a ESP8266 WIFI module connection. Next, the axial magnetic induction intensity data are decoupled to obtain the measurement trajectory, whereas the error function is established based on the calculated trajectory parameters. Finally, the Levenberg–Marquardt (L-M) algorithm is used to solve the position information of the MCCE.
Findings
Experiments show that the average localization error of an MCCE in a straight and circular bend tube is 4.76 mm, whereas in a U-bend tube, it is 6.82 mm.
Originality/value
The optimized simulation value in the linear and bending environment is in good agreement with the experimental value, which verifies the accuracy of the MCCE localization system based on magnetic field sensor array, exhibiting good performance in localization and position tracking while providing a theoretical basis for the subsequent research.
Details
Keywords
Mohammad Asif, Mohd Shuaib Siddiqui and Hari Prapan Sharma
The aim of the study is to investigate the factors that influence the adoption of e-procurement by businesses in the specific context of Saudi Arabia.
Abstract
Purpose
The aim of the study is to investigate the factors that influence the adoption of e-procurement by businesses in the specific context of Saudi Arabia.
Design/methodology/approach
This study uses the firm-level data of World Bank Enterprise Surveys 2022 of Saudi Arabia covering 1,573 enterprises. The association between firm characteristics and the adoption of e-procurement by enterprises has been examined through the chi-square test. Further, a logistic regression model has been fitted to estimate the factors affecting adoption of e-procurement.
Findings
About 10 % of the enterprises reported that they adopted e-procurement as the establishment’s main technology to manage procurement and supplier chain by enterprises. A statistically significant association has been found between e-procurement vis-a-vis firm characteristics. Moreover, logistic regression analysis indicated that large and innovative enterprises, with digital presence in terms of website, holding a bank account and access to credit are more likely to adopt e-procurement.
Practical implications
This study offers valuable insights into the factors that influence the adoption of e-procurement by businesses, which helps the supply chain manager to develop and operationalize the digital supply chain through e-procurement in the context of Saudi Arabia.
Originality/value
This paper can provide significant insights for promoters and supply chain managers in Saudi Arabia, who are now focusing on the digital transformation of businesses. By understanding the factors affecting e-procurement by firms, they can smooth the supply chain.
Details
Keywords
Bin Chen, Binsheng Xi, Nina Wan, Shuaibing Wang and Bo Tang
Because the nanocrystalline core is widely used in power electronic equipment, and the excitation waveform of its working mode is complex, the vibration at medium and high…
Abstract
Purpose
Because the nanocrystalline core is widely used in power electronic equipment, and the excitation waveform of its working mode is complex, the vibration at medium and high frequencies cannot be ignored. Therefore, this study aims to study the vibration mechanism of nanocrystalline strip and the vibration characteristics of nanocrystalline magnetic ring under different excitation waveforms.
Design/methodology/approach
First, the electromagnetic vibration mechanism between nanocrystalline strips is analyzed by finite element analysis, and the force of the magnetic ring with and without air gap is compared and analyzed. Then, the vibration of nanocrystalline magnetic ring under different excitation waveforms such as sine wave, triangular wave, symmetric rectangular wave and asymmetric rectangular wave is analyzed by experimental method. The acceleration time domain waveform measured by the experiment is analyzed by fast Fourier transform, and the vibration is analyzed according to the spectrum.
Findings
Because of the increase of magnetic flux leakage, the volume force density and the Maxwell force on the surface of the nanocrystalline magnetic ring will increase after the air gap is opened, resulting in the intensification of vibration. Under symmetric/asymmetric rectangular wave excitation, the vibration acceleration varies with the duty cycle. Due to the influence of harmonic excitation, the relationship between the main frequency of vibration and the excitation frequency is not two times, and its multiple decreases with the increase of excitation frequency.
Originality/value
The research and analysis of this paper can promote the application of new magnetic materials in electrical equipment in small and medium-sized and medium- to high-frequency fields.
Details
Keywords
Ai-Fen Lim, Keng-Boon Ooi, Voon-Hsien Lee and Garry Wei-Han Tan
Emerging competitive dynamics demand small and medium-sized enterprises (SMEs) to continuously comprehend and respond to changing market conditions by implementing effective soft…
Abstract
Purpose
Emerging competitive dynamics demand small and medium-sized enterprises (SMEs) to continuously comprehend and respond to changing market conditions by implementing effective soft total quality management (STQM) practices. Firstly, the study intends to identify the key STQM practices perceived to foster knowledge sharing (KS). Secondly, this study aims to investigate the impact of market turbulence (MT) on the interaction between STQM practices and KS among SMEs.
Design/methodology/approach
A total of 215 valid samples were analysed. Incorporating a two-hidden-layer deep artificial neural network (ANN) into SEM approaches allows for more in-depth testing and high prediction power. This study employs a two-stage PLS-SEM-ANN predictive-analytical technique to provide a more comprehensive analysis and significant statistical contribution.
Findings
The PLS-SEM-ANN analysis reveals that STQM practices including employee involvement (EI), employee training (ET), top management commitment (TMC) and employee teamwork (EM) are critical to boosting KS. MT, interestingly, moderates the relationship between EM and KS while negatively moderating the relationship between TMC and KS.
Originality/value
The study contributes to the knowledge-based view theory by demonstrating the importance of integrating STQM and KS among SMEs to thrive in today's dynamic market environment.
Details
Keywords
Faisal Qamar and Shuaib Ahmed Soomro
Applying servant leadership theory, this study aims to investigate whether servant leadership predicts service excellence of bank employees through mediating role of psychological…
Abstract
Purpose
Applying servant leadership theory, this study aims to investigate whether servant leadership predicts service excellence of bank employees through mediating role of psychological capital (PsyCap). It also tests buffering role of conscientiousness in boosting service excellence.
Design/methodology/approach
The study uses data collected from 224 bank employees. SPSS and jamovi statistics were used for data analysis.
Findings
Study findings suggest a significant relationship between servant leadership, service excellence and PsyCap. PsyCap emerged as a mediator, and conscientiousness moderated the nexus between servant leadership and service excellence.
Practical implications
Findings highlight important implications for organisational practitioners. Because servant leadership leads to service excellence, practitioners should consider adopting servant leadership at every organizational level. Further, servant leaders could enhance followers’ PsyCap for creating service excellence. Organisations should use customized training programs and development interventions to enhance service excellence.
Originality/value
This study is one of the few studies to investigate the mediating role of PsyCap as a personal resource and buffering role of conscientiousness for service sector employees. Study generates new insights on employee experiences working in service sectors.
Details
Keywords
Suhaib Ahmed Soomro and Shuaib Ahmed Soomro
This study utilizes social exchange theory to investigate the relationship between green intellectual capital and employee environmental citizenship behavior through serial…
Abstract
Purpose
This study utilizes social exchange theory to investigate the relationship between green intellectual capital and employee environmental citizenship behavior through serial mediation of organizational agility and employee green creativity.
Design/methodology/approach
This study uses a multi-level and multi-wave dataset of 425 employees and 70 managers nested within 35 manufacturing firms. The authors followed a 2-2-1-1 research framework in which organizational green intellectual capital (a level 2 variable) influenced employee environmental citizenship behavior (a level 1 outcome variable), which was then mediated by organizational agility (a level 2 variable) and employee green creativity (a level 1 variable). This study used Jamovi for hypotheses testing.
Findings
The findings suggest a positive relationship between green intellectual capital and organizational agility, leading positively to employee environmental citizenship behavior and employee green creativity. It indicates that green intellectual capital positively relates to employee environmental citizenship behavior via serial mediation effects of organizational agility and employee green creativity.
Practical implications
This study provides valuable insights for manufacturing firms and policymakers. The study encourages environmental conservation and restoration efforts by individuals and organizations, supporting initiatives to protect the environment. Findings may help manufacturing firms and policymakers towards mitigating environmental harm to achieve their sustainability objectives.
Originality/value
This study enhances our understanding of the link between green intellectual capital and employee environmental citizenship behavior through indirect path of organizational agility and employee green creativity.
Details
Keywords
Rocco Palumbo and Alexander Douglas
Although the debate about the interplay between quality management and organizational culture is long established, extant knowledge about their link is not consistent. This…
Abstract
Purpose
Although the debate about the interplay between quality management and organizational culture is long established, extant knowledge about their link is not consistent. This article attempts to fill such a gap by integrating current perspectives and insights through a literature review.
Design/methodology/approach
A domain-based literature review has been conducted, which followed the Scientific Procedures and Rationales for Systematic Literature Reviews. The knowledge core consisted of 76 items, which were analysed through bibliographic coupling and co-citation analysis. An interpretive approach was taken to articulate the study findings.
Findings
The current scholarly debate unfolds through four research streams, which emphasize the need for joint optimizing quality management and organizational culture embracing a longitudinal perspective. Similarly, the theoretical roots inspiring reviewed contributions are distributed in four clusters, which rely on the assumption that organizational excellence derives from the harmonization of quality management and organizational culture.
Practical implications
Quality management necessitates a supportive organizational culture to set the ground for excellence. At the same time, it modifies the inner traits of the organizational culture. Such cultural changes should be carefully handled to ensure a dependable quality orientation. Achieving organizational excellence involves mastering the interplay between quality management and organizational culture.
Originality/value
This article delivers an unprecedented systematization of the scientific literature. It identifies the main research streams through which the debate on quality management and culture evolves, shedding light on the main conceptual roots inspiring recent scholarly advancements. Alongside overcoming the fragmentation of the extant debate, this review enables the envisioning of an agenda for further developments.
Details
Keywords
The airport operators' management is a complex process, especially in terms of airport cost and revenue factors, because it requires a basic understanding of economics, marketing…
Abstract
The airport operators' management is a complex process, especially in terms of airport cost and revenue factors, because it requires a basic understanding of economics, marketing, logistics, the current legal framework of the airport according to national and international bodies and the evaluation of the airport's operational processes and infrastructure every day. In addition, this chapter presents how these factors affect airport pricing, which has increased significantly after the COVID-19 pandemic in response to new measures of security and hygiene, higher fuel prices and the introduction of new government measures to combat the spread of the COVID-19 virus in countries, airports and airlines. To sum up, this section is intended to provide readers with an overview of the management of airport costs and revenue distribution by operators and alert them to key issues and their effects on airport economics, strategies marketing and long-term survivability.
Rafi Vempalle and Dhal Pradyumna Kumar
The demand for electricity supply increases day by day due to the rapid growth in the number of industries and consumer devices. The electric power supply needs to be improved by…
Abstract
Purpose
The demand for electricity supply increases day by day due to the rapid growth in the number of industries and consumer devices. The electric power supply needs to be improved by properly arranging distributed generators (DGs). The purpose of this paper is to develop a methodology for optimum placement of DGs using novel algorithms that leads to loss minimization.
Design/methodology/approach
In this paper, a novel hybrid optimization is proposed to minimize the losses and improve the voltage profile. The hybridization of the optimization is done through the crow search (CS) algorithm and the black widow (BW) algorithm. The CS algorithm is used for finding some tie-line systems, DG locations, and the BW algorithm is used for finding the rest of the tie-line switches, DG sizes, unlike in usual hybrid optimization techniques.
Findings
The proposed technique is tested on two large-scale radial distribution networks (RDNs), like the 119-bus radial distribution system (RDS) and the 135 RDS, and compared with normal hybrid algorithms.
Originality/value
The main novelty of this hybridization is that it shares the parameters of the objective function. The losses of the RDN can be minimized by reconfiguration and incorporating compensating devices like DGs.
Details
Keywords
Chandan Kumar Tiwari and Abhinav Pal
This paper examines the current state of blockchain governance research. The study’s findings also propose a conceptual framework for the use of blockchain in governance and…
Abstract
Purpose
This paper examines the current state of blockchain governance research. The study’s findings also propose a conceptual framework for the use of blockchain in governance and global governance and provide a global look at how public and private sectors alike are implementing new technologies.
Design/methodology/approach
The study is qualitative as well as quantitative in nature. The authors used Preferred Reporting Items for Systematic and Meta-Analysis (PRISMA) to gather data for the study. Furthermore, a bibliometric analysis using VOSviewer visualization tool and R Studio was carried out to attain the research objectives.
Findings
Many scholars and practitioners from around the world are interested in the topic, according to the analysis. This is a multidisciplinary study, so researchers have looked at how the blockchain can be used to govern countries, public utilities and global facilities, including corporations. There are numerous examples of how technology has been used in global governance, and the authors found that governments, as well as corporations around the world, have implemented technology in a variety of areas that affect the public and other stakeholders.
Practical implications
This study makes numerous contributions. In the first place, it presents the complex concept of blockchain in an easier to understand way. The numerous governmental and commercial initiatives that have made use of blockchain are also highlighted. As a result, the use of technology in corporate and social governance will continue to grow. Finally, the research will inform the academic community on the current state of the topic and potential future directions.
Originality/value
As a result of this research, academics and scholars can better understand the potential of blockchain in various governance models, ranging from developed to developing economies. The general public, as well as organizations, will benefit from the decentralized nature of the blockchain in a variety of ways related to their day-to-day governance. To the best of authors’ knowledge, this is a first kind of research on blockchain in governance using PRISMA and bibliometrics tools.