Economic study of maintenances and outage resolution in an electricity distribution network using the continuous-time Markov chain

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Navid Nazhand ◽  
Reza Dashti ◽  
Abolfazl Ahmadi

PurposeThe purpose of this paper is to describe a novel method to compromise between planned (regulated) maintenance and outage initiation and unplanned (unregulated) maintenance and to find an economic model using which one can perform maintenance adequately and in the most optimal state.Design/methodology/approachIn this paper, a system consisting of similar components is considered, and the role of each component in the system is explained. Then, the cost pertaining to failure in each asset is determined. Costs such as energy not supplied, penalties, human resources to resolve the defect and replacing assets are taken into account. Finally, a new comprehensive objective is proposed, and optimization is performed for a sample system.FindingsIn this paper, some graphs have been plotted from which plenty of information may be extracted. This is mentioned in the Conclusion.Originality/valueIn this paper, some graphs have been plotted from which plenty of information may be extracted. This is mentioned in the Conclusion.

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Chiradip Bandyopadhyay ◽  
Kailash B. L. Srivastava

PurposeThe purpose of this paper is to reframe human resources' (HR) systems and practices as HR signals drawing from conceptualizations of signals. The construct of the strength of signal is developed to quantify the attributional ability of HR signals. To examine the role of HR signals in influencing employee behaviours and firm performance, human resource management (HRM)-firm performance relationship is considered as a framework to develop a firm-level conceptual model which integrates factors affecting HR signals and its consequences.Design/methodology/approachThe paper examines the existing literature on the relationship between HRM and firm performance. In the process, the paper considers the concept of HR signal and makes a case for the strength of HR signal. Finally, the paper offers a conceptual model in order to link the antecedents and consequents of HR signals.FindingsThe paper offers a conceptual model to address the gaps in the relationship between HRM and firm performance. It also brings into focus an understanding of HRM as signals and its importance in understanding firm performance.Originality/valueThe paper enriches the existing literature by examining HRM as HR signals. It adds to the literature by considering the attributional ability of HR, through the construct of the strength of HR signals.


2016 ◽  
Vol 24 (7) ◽  
pp. 1-3
Author(s):  
Smitu Malhotra ◽  
Arpita Srivastava

Purpose This paper aims to describe the role of human resources in organizations in preventing sexual harassment (SH) at the workplace. Design/methodology/approach This paper explains how SH is detrimental to the organization and why creating awareness about SH is essential for both men and women in the organization. Findings Findings show how organizations can pro-actively prevent the incidence of SH by creating a zero tolerance for SH in organizations with top management commitment and the formulation and enforcement of a policy against SH. Originality/value The paper creates a case for proactive preventive measures such as sensitization, policy formulation and enforcement to combat SH in organizations rather than pursuing a reactive approach.


2017 ◽  
Vol 16 (1) ◽  
pp. 24-31 ◽  
Author(s):  
Chris Altizer

Purpose The purpose of this paper is to focus on “mindfulness” as an emerging wellness, performance, and leadership solution in business, and the role of human resources (HR) in effectively leveraging the potential value while minimizing the potential risks. Design/methodology/approach This paper reviews current research and current discussion of mindfulness in business, leadership, health, and management media, and provides recommendations for effective adoption. Findings Benefits of mindfulness practices include improved overall health and improved stress management for individuals and correlated benefits in productivity and performance of individuals, teams, and leaders. The potential risks of mindfulness include disengagement of non-participants and wasted investment if not integrated with company practices and culture. Practical implications This paper highlights the importance of aligning introduction of mindfulness with company practices and culture, ensuring voluntary participation, providing effective communication, and maintaining a secular nature of implementation. Originality/value This paper helps HR leaders leverage mindfulness for performance and wellness of individuals, teams and leaders.


2017 ◽  
Vol 49 (4) ◽  
pp. 175-182 ◽  
Author(s):  
Geetika Malik ◽  
A. Venkatraman

Purpose The purpose of this paper is to emphasise on demand supply skill gap of human resources in India which would help generate reasons for the same and the necessary steps to be taken to improve the situation and bridge the skill gap helping maximum number of the students becoming employable. It will put an impact on various stakeholders about the steps to be taken in bridging the gap in India. Design/methodology/approach A review of available literature was done in order to understand the reasons behind the increasing skill gap despite a vibrant and abundance of young population. Findings The findings of the paper implicitly point out that a vast skill gap is prevailing in the Indian labour market and there is a dearth of human intellectual capital in India. Also it emphasises on the role of various stakeholders in bridging the skill gap by investing in workforce of today for a better tomorrow. Originality/value Based on literature review, the paper makes specific recommendations to various stakeholders (industry, academia, and government) in bridging the skill gap and would serve as a roadmap for companies guiding them to follow certain strategies to improve skills of future workers by investing in them and growing their own talent pool; and is an attempt to highlight the fact that India’s jobless growth is not going to reap the demographic dividend and certainly the increasing skill gap needs to be bridged ASAP.


2018 ◽  
Vol 65 (4) ◽  
pp. 368-374 ◽  
Author(s):  
Mostafa G. Mohamed ◽  
Nivin M. Ahmed ◽  
Walaa M. Abd El-Gawad

PurposeUsing organic coatings serves as a key method to protect metal structures against corrosion. Attempts have been made to improve the corrosion inhibition of the coatings using novel types of pigments. This study aims to study the application of organic coatings containing rice straw (RS) waste as anticorrosive pigment for corrosion protection of reinforced steel. The RS was used by precipitating a thin layer of ferrite pigments on its surface to improve their characteristics and corrosion resistance activity.Design/methodology/approachThe evaluation of corrosion behavior of coated reinforced steel with paints containing these novel pigments is reported using different electrochemical methods.FindingsThe coatings containing the new prepared RS-ferrite pigments offered good corrosion protection, and coatings containing RS-ZnFe showed the best protection performance.Originality/valueThis paper introduces novel method to prepare treated RS without any burning and to play the role of pigments in anticorrosive paint formulations based on its silica content.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Arturo Cruz ◽  
Vaughan Coffey ◽  
Tommy H.T. Chan ◽  
Miljenka Perovic

PurposeThis paper aims to set out the role of engineers in heritage conservation and investigates and evaluates the proposed available tools, technology and innovations that are currently available in the civil engineering sector that can be applied in heritage conservation.Design/methodology/approachAs society has become more aware of the grandeur of heritage spaces and structures, there is increasing pressure to preserve historic buildings. But, it is the economic cost of maintaining this important heritage legacy that has become the prime consideration of every state in Australia. Dedicated intelligent monitoring systems supplementing the traditional building inspections will enable the involved and interested stakeholders to carry out not only timely reactive response, but also to plan the maintenance of such buildings in a more vigilant and systematic manner. This will, in future, help to prevent further degradation of heritage buildings, which is very costly, often difficult and sometimes impossible to address if neglected. Savings in time and resources can be achieved, but only if a building's pathological monitoring and inspection results are on hand for use to guide major decisions to be made on how to best prevent further decay, or to save an important historical structure or building fabric.FindingsThe emergence of technological tools will enable the realization of a maintenance-focused conservation model. However, aside from the cost, these tools are still experimental in nature. These technologies are yet to be applied within the conservation industry with hopes of creating an easier and economically effective systematic method of heritage conservation.Originality/valueThe paper discusses the emerging tools and technologies in easing the monitoring aspect of a maintenance-focused conservation model.


2019 ◽  
Vol 22 (1) ◽  
pp. 5-8
Author(s):  
Ian Cummins

Purpose The purpose of this paper is to discuss the recent National Appropriate Adult Network (NAAN) report on the role of the appropriate adult. Design/methodology/approach This paper is based on the NAAN report and a review of relevant policy and research literature. Findings There to Help 2 highlights that there are still significant gaps in the provision of appropriate adult schemes across England and Wales. These gaps potentially place vulnerable adults at increased risk. Originality/value This paper is a review of recent research.


2017 ◽  
Vol 31 (7/8) ◽  
pp. 730-745 ◽  
Author(s):  
Jorge Cegarra-Sanchez ◽  
Juan-Gabriel Cegarra-Navarro ◽  
Anthony Wensley ◽  
Jose Diaz Manzano

Purpose Knowledge acquired from sources of unverified information such as gossip, partial truths or lies, in this paper it is termed as “counter-knowledge.” The purpose of this paper is to explore this topic through an exploration of the links between a Hospital-in-the-Home Units (HHUs) learning process (LP), counter-knowledge, and the utilization of communication technologies. The following two questions are addressed: Does the reduction of counter-knowledge result in the utilization of communication technologies? Does the development of counter-knowledge hinder the LP? Design/methodology/approach This paper examines the relevance of communication technologies to the exploration and exploitation of knowledge for 252 patients of a (HHU) within a Spanish regional hospital. The data collected was analyzed using the PLS-Graph. Findings To HHU managers, this study offers a set of guidelines to assist in their gaining an understanding of the role of counter-knowledge in organizational LPs and the potential contribution of communication technologies. Our findings support the proposition that the negative effects of counter-knowledge can be mitigated by using communication technologies. Originality/value It is argued in this paper that counter-knowledge may play a variety of different roles in the implementation of LPs. Specifically, the assignment of communication technologies to homecare units has given them the means to filter counter-knowledge and prevent users from any possible problems caused by such counter-knowledge.


2019 ◽  
Vol 22 (4) ◽  
pp. 744-752
Author(s):  
Sisira Dharmasri Jayasekara ◽  
Iroshini Abeysekara

Purpose The purpose of this paper is to discuss the role of digital forensics in an evolving environment of cyber laws giving attention to Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) countries, comprising Bangladesh, India, Myanmar, Sri Lanka, Thailand, Nepal and Bhutan, in a dynamic global context. Design/methodology/approach This study uses a case study approach to discuss the digital forensics and cyber laws of BIMSTEC countries. The objective of the study was expected to be achieved by referring to decided cases in different jurisdictions. Cyber laws of BIMSTEC countries were studied for the purpose of this study. Findings The analysis revealed that BIMSTEC countries are required to amend legislation to support the growth of information technology. Most of the legislation are 10-15 years old and have not been amended to resolve issues on cyber jurisdictions. Research limitations/implications This study was limited to the members of the BIMSTEC. Originality/value This paper is an original work done by the authors who have discussed the issues of conducting investigations with respect to digital crimes in a rapidly changing environment of information technology and deficient legal frameworks.


2019 ◽  
Vol 38 (2) ◽  
pp. 368-383
Author(s):  
King Yin Wong ◽  
Michael Lynn

Purpose The extant literature has mixed results regarding the credit card cue effect. Some showed that credit card cues stimulate spending, whereas others were unable to replicate the findings or found that cues discourage consumer spending. The purpose of this paper is to investigate how consumers’ sensitivity to the pain of payment affects their mental associations about credit cards and how the differences in credit card associations moderate the credit card cue effect on spending, providing a possible explanation for the mixed results in the literature. Furthermore, this paper examines the role of consumers’ perceived financial well-being, measured by their perceptions of current and future wealth and their sense of financial security, in mediating this moderation effect. Design/methodology/approach An experimental study was conducted with a sample of 337 participants to test the hypothesized model. Findings After being shown credit card cues, spendthrift participants had more spending-related thoughts and less debt-related thoughts, perceived themselves as having better financial well-being and consequently spent more than tightwad participants. Originality/value To the authors’ knowledge, this is the first study to investigate the direct link between an exposure to credit card cues and perceived financial well-being, and one of the few to show evidence of the moderating effect of consumers’ sensitivity to the pain of payment on spending when credit card cues are present. This study suggests that marketers may use credit card cues to promote consumer spending, whereas consumers, especially spendthrifts, should be aware of how credit card cues may inflate their perceived financial well-being and stimulate them to spend more.


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