Bi-objective optimization of induction machine using interval-based interactive algorithms

2014 ◽  
Vol 33 (3) ◽  
pp. 729-744 ◽  
Author(s):  
Dmitry Samarkanov ◽  
Frédéric Gillon ◽  
Pascal Brochet ◽  
Daniel Laloy
Keyword(s):  
Optimal Design ◽  
Design Methodology ◽  
Induction Machine ◽  
Optimization Methods ◽  
Objective Functions ◽  
Content Type ◽  
Multi Objective ◽  
The Difference ◽  
Interactive Algorithms ◽  
Practical Implications

Purpose – Discrete highly constrained optimization of induction machine taking into consideration two objective functions: efficiency and total costs of production. The paper aims to discuss these issues. Design/methodology/approach – Interactive and semi-interactive interval-based optimization methods were used. Two concepts of multi-objective discrete optimization were proposed. Findings – Proposed methodology and algorithms allow decision maker (DM) participate in the process of optimal design and therefore decrease the total time of optimization process. The search procedure is straightforward and it does not require special skills of DM. Presented methods were successfully versified for the problem of optimal design with discrete variables. Research limitations/implications – Three interval algorithms suitable for inverse problems are researched and verified. It generally can be used for multi-objective problems. The dominance principles for interval boxes are showed in the paper. Proposed algorithms are based on the idea of hybridization of exact and evolutionary methods. Practical implications – Proposed approaches were successfully implemented within computer-aided application which is used by manufacturer of high power induction machine. Originality/value – The concept of pareto-domination using the interval boxes can be treated as original. The paper researched several elimination rules and discusses the difference between different approaches.

The response of majority employee-owned firms during the pandemic compared to other firms

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Joseph Blasi ◽  
Douglas Kruse ◽  
Dan Weltmann
Keyword(s):  
Design Methodology ◽  
Employee Ownership ◽  
Social Implications ◽  
Firm Level ◽  
Content Type ◽  
Rutgers University ◽  
Employment Trends ◽  
The Difference ◽  
Industry Membership ◽  
Practical Implications

PurposeThe purpose of this study is to understand how majority employee-owned firms responded to the pandemic compared to firms that were not majority employee-owned. The Employee Ownership Foundation partnered with Rutgers University and the SSRS survey firm to survey ESOP and non-ESOP firms about their responses to the COVID-19 pandemic. A key purpose of the survey was to estimate firm-level changes in employment from mid-January to August (current employment figures were adjusted to August 5 using BLS industry employment trends). The survey also looked at other forms of adjustment and responses to the pandemic as reviewed below. The focus in this study is on the differences between firms that are majority owned by ESOPs and those that are not.Design/methodology/approachThe survey included 247 executives from ESOP Association member companies and 500 executives from an SSRS business panel constructed to be representative of US companies with 50 or more employees. The survey started on August 5 and ended on September 23, 2020.Findings(1) Majority ESOP firms had employment declines from January to August that were on average only one-fourth as large as for other firms. The difference is maintained when controlling for industry membership. (2) Majority ESOP firms were more likely to be declared “essential,” but the lower employment cutbacks among majority ESOP firms remain among essential and non-essential businesses. As essential businesses, majority ESOP firms were more likely receive Paycheck Protection Program or other government pandemic assistance, but both assistance recipients and non-recipients had lower employment cutbacks among majority ESOP firms. (3) The extent of employment cutbacks was higher for non-managers than for managers, but the manager/non-manager gap was higher among other firms than among majority ESOP firms.Research limitations/implicationsThis study supports empirical findings done previously.Practical implicationsThis study suggests to non-EO firms what they can do.Social implicationsThis study suggests strengths of EO firms.Originality/valueA very original and one-of-a-kind dataset.

Understanding the difference of values-based motivation of managerial workers in spa businesses in Thailand

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Pornlapas Suwannarat
Keyword(s):  
Data Collection ◽  
Design Methodology ◽  
Cultural Background ◽  
Core Values ◽  
Operational Performance ◽  
Collection Method ◽  
Content Type ◽  
The Difference ◽  
Asean Countries ◽  
Practical Implications

PurposeThis study focuses on variations of the importance of core values through motivational domains of individuals by their cultural background. The effect of motivational domains on operational performance has also been investigated.Design/methodology/approachThe study used survey as the main data collection method to elicit data from managerial workers in spa businesses in four regions of Thailand. An unpublished database of spa businesses was provided to the study by the Thai Chamber of Commerce.FindingsSignificant variations of the importance of motivational domains of managerial workers can be found according to the subculture of each of the four regions of Thailand. In addition, the motivational domains have found their significant impact on worker operational performance.Research limitations/implicationsOne of the limitations of this study may be the distribution of samples because the study focuses on spa businesses, most of which in each region are located in big tourism provinces that may not be wholly representative of the characteristics of each region.Practical implicationsThis study will be of practical value for practitioners or managers of any firms since it is important to consider value variations when assessing the operational performance; workers, especially managerial workers, in each subculture may have different priorities in the motivational domains of their lives. This could affect their operational performance.Originality/valueThis is an original attempt to ascertain variations of core values through motivational domains by subculture. It fills a knowledge gap in under-researched area in the literature since so far a few studies have examined this issue in the ASEAN countries.

Different choice of strategic innovation among companies in China market

2014 ◽  
Vol 5 (2) ◽  
pp. 106-121
Author(s):  
Xu Yang
Keyword(s):  
Design Methodology ◽  
Chinese Market ◽  
Test Analysis ◽  
Content Type ◽  
Strategic Innovation ◽  
China Market ◽  
Different Types ◽  
The Difference ◽  
Practical Implications ◽  
Great Growth

Purpose – The purpose of this paper is to test the difference among foreign and domestic cosmetics firms in terms of types of strategic innovations they chose in the Chinese market, and the difference between domestic large-sized cosmetics firms and cosmetics small- to medium-sized enterprises (SMEs) about types of strategic innovation they choose in the Chinese market. Design/methodology/approach – The independent-sample t-test was used to compare foreign and domestic cosmetics firms and domestic SMEs and large-sized cosmetics firms. Findings – Foreign and domestic cosmetics firms should not choose the same type of strategic innovations, and it also showed that Chinese domestic large-sized firms and SMEs should not choose the same types of strategic innovations. Research limitations/implications – China is the exclusive place of focus. Only 19 types of strategic innovations were analyzed. There may be other variables that have not been addressed in the study. Practical implications – Though other large-sized companies achieved considerable profitability or growth by using some types of strategic innovations, the same types may not contribute to the same profitability or growth for SMEs. Although foreign cosmetics companies had great growth and profitability in the Chinese market, domestic large-sized companies should not blindly follow them as their needs and situations are different. Originality/value – From this t-test analysis, it is clear that foreign cosmetics firms and domestic cosmetics firms chose different types of strategic innovation in the Chinese market. Meanwhile, domestic large-sized cosmetics firms and SMEs chose different types of strategic innovation.

Early warning scores: unravelling detection and escalation

2015 ◽  
Vol 28 (8) ◽  
pp. 872-875 ◽  
Author(s):  
Gary B Smith ◽  
David R Prytherch ◽  
Paul Meredith ◽  
Paul E Schmidt
Keyword(s):  
Early Warning ◽  
Personal Experience ◽  
Design Methodology ◽  
Nurse Educators ◽  
Clinical Care ◽  
Early Warning Score ◽  
Content Type ◽  
Patient Deterioration ◽  
The Difference ◽  
Practical Implications

Purpose – The purpose of this paper is to increase understanding of how patient deterioration is detected and how clinical care escalates when early warning score (EWS) systems are used. Design/methodology/approach – The authors critically review a recent National Early Warning Score paper published in IJHCQA using personal experience and EWS-related publications, and debate the difference between detection and escalation. Findings – Incorrect EWS choice or poorly understood EWS escalation may result in unnecessary workloads forward and responding staff. Practical implications – EWS system implementers may need to revisit their guidance materials; medical and nurse educators may need to expand the curriculum to improve EWS system understanding and use. Originality/value – The paper raises the EWS debate and alerts EWS users that scrutiny is required.

Does disclosing CSR activity create a competitive advantage?

2018 ◽  
Vol 34 (2) ◽  
pp. 33-35
Keyword(s):  
Competitive Advantage ◽  
Design Methodology ◽  
Content Type ◽  
Pertinent Information ◽  
Environmentally Sensitive ◽  
The Difference ◽  
Corporate Social ◽  
The Relationship ◽  
Privately Owned ◽  
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 The difference in competitive advantage impairment between environmentally sensitive industries (ESIs) and non-environmentally sensitive industries (NESIs) is significant. Further, comparisons on the relationship between overall corporate social responsibility disclosure and competitive advantage among state-owned enterprises, privately owned enterprises, ESIs and NESIs suggest that the relationship is negative. Originality/value The briefing saves busy executives, strategists 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.

Education policy rhetoric and reality gap: a reflection

2008 ◽  
Vol 22 (6) ◽  
pp. 595-602 ◽  
Author(s):  
Ng Pak Tee
Keyword(s):  
Education Policy ◽  
Design Methodology ◽  
Implementation Process ◽  
Local Context ◽  
Content Type ◽  
Simple Matrix ◽  
The Difference ◽  
State Of Affairs ◽  
Practical Implications ◽  
Different Levels

PurposeThis paper aims to discuss why there is often a gulf of difference between policy rhetoric and reality. In particular, the paper seeks to explore issues with the policy rhetoric, implementation process and the lens through which reality is perceived, explaining why these issues can open up a policy rhetoric‐reality gap. This article also suggests a simple matrix framework to analyse a rhetoric‐reality gap.Design/methodology/approachThis paper is a reflection on, and analysis of, the issue of the difference between policy rhetoric and reality. The framework of analysis involves: issues with policy rhetoric; issues with the implementation process; issues with examining reality.FindingsAlthough policy rhetoric always has laudable aims, the underlying dynamics of change and interaction among the various actors at different levels of the system often means that the rhetoric may be compromised in reality. However, it is also possible that even when implementation reality may not correspond closely to policy rhetoric, the adaptation of the policy allows for a better fit with the local context while allowing the policy rhetoric to retain its evocative values for an ideal state of affairs.Practical implicationsPolicy rhetoric‐reality is not always “evil” and this gap can be systematically investigated.Originality/valueThis paper provides an explanation of the policy rhetoric‐reality gap and suggests a simple matrix framework to analyse such a gap.

Image needs on social Q&A sites: a comparison of Zhihu and Baidu Zhidao

2019 ◽  
Vol 37 (3) ◽  
pp. 454-473
Author(s):  
Shengli Deng ◽  
Anqi Zhao ◽  
Ruhua Huang ◽  
Haiping Zhao
Keyword(s):  
Design Methodology ◽  
Qualitative Content Analysis ◽  
Image Search ◽  
Search Behaviour ◽  
Content Type ◽  
Subjective Evaluations ◽  
Retrieval Systems ◽  
Subsequent Discussion ◽  
The Difference ◽  
Practical Implications

Purpose This study aims to examine why users search for images, how users describe their image needs and what the images are used for by analysing questions obtained from two Chinese social Q&A sites, Zhihu and Baidu Zhidao. Design/methodology/approach A total of 1,402 image questions were collected from Zhihu and Baidu Zhidao. Both quantitative analysis and qualitative content analysis were performed to identify user image needs and the potential differences on the two social Q&A sites. Findings Question-asker’s intention varies in different platforms. Zhihu users asked questions mainly aiming at a promotion of subsequent discussion, whereas users of Baidu Zhidao often did so to seek information. Syntactic attributes were not frequently used in both two sites. Zhihu users were more likely to express subjective evaluations on images (concept, emotion, theme and style) in their questions than users of Baidu Zhidao. In contrast, questions from Baidu Zhidao showed a tendency to more frequently include descriptive metadata (rights, format, size, quality and authenticity) and semantic attributes (generic activity, specific people, fashion and text) of the images than questions from Zhihu. Learning was an important use on social Q&A sites, especially on Baidu Zhidao. In addition, the images were primarily used to trigger emotion or served a persuasive purpose in Zhihu. Practical implications This study contributes to a better understanding of user image search behaviour, and the findings could be used to develop better image services on social Q&A sites. Meanwhile, the image attributes extracted from the questions are conducive to the improvement of image retrieval systems. Originality/value This study explored the features of image needs on social Q&A sites, especially considering image use specified in the question. The difference of image needs between two Chinese social Q&A sites (Zhihu and Baidu Zhidao) was identified.

It really does pay to give employees a pat on the back

2014 ◽  
Vol 22 (4) ◽  
pp. 40-43
Author(s):  
M.S. Rao
Keyword(s):  
Positive Feedback ◽  
Employee Retention ◽  
Design Methodology ◽  
Social Implications ◽  
Content Type ◽  
Future Leaders ◽  
The Difference ◽  
Giving Feedback ◽  
Practical Implications ◽  
Blind Spots

Purpose – The purpose of this paper is to present tips for leaders on receiving and giving feedback. Design/methodology/approach – Various types of feedback and the difference between feedback and criticism have been described. Findings – It has been emphasized that leaders need to view feedback as a developmental tool. Its importance in achieving leadership excellence also has been stressed. Practical implications – This paper argues that feedback helps employees to recognize their blind spots, correct themselves and perform better. It also serves as an employee retention tool. People crave feedback, especially positive feedback. But the feedback givers must know the art of giving feedback so that they are respected for it. Social implications – This paper advances the view that people excel through improvement and can improve through feedback. Originality/value – This paper describes how to use feedback as a tool to develop future leaders.

Numerical investigationof clocking effect of impellerson a multistage pump

2019 ◽  
Vol 36 (5) ◽  
pp. 1469-1482 ◽  
Author(s):  
Minggao Tan ◽  
Yichao Lian ◽  
Xianfang Wu ◽  
Houlin Liu
Keyword(s):  
Vibration Frequency ◽  
Time Domain ◽  
Pressure Fluctuation ◽  
Design Methodology ◽  
Content Type ◽  
Pump Head ◽  
The Difference ◽  
Multistage Pump ◽  
Vibration Performance ◽  
Practical Implications

Purpose The purpose of this paper is to investigate the clocking effect of impellers and the superposition between pump stages caused by clocking effect in a five-stage centrifugal pump. Then the best clocking scheme in terms of vibration is tried to be provided as well. Design/methodology/approach All curves of pressure fluctuation in different impeller stages can be divided into two groups for the difference of 1/16 T in time domain. The difference is mostly in vibration frequency and amplitude, little in pump head and efficiency. Findings All curves of pressure fluctuation in different impeller stages can be divided into two groups for the difference of 1/16 T in time domain. The difference is mostly in vibration frequency and amplitude, little in pump head and efficiency. Research limitations/implications This research involves eight different impeller clocking schemes. The results show that the clocking effect has little influence in pump head and efficiency, but the influence in pressure fluctuation is larger. Practical implications The paper provides guidance for the design of multistage pump for better vibration performance. Originality/value This research involves eight different impeller clocking schemes, the results show that the clocking effect has little influence in pump head and efficiency, but the influence in pressure fluctuation is larger. Then the best clocking scheme In terms of vibration is tried to be provided through analysis.

Survival lessons

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Keyword(s):  
Case Studies ◽  
Small Businesses ◽  
Design Methodology ◽  
Reading Time ◽  
Cutting Edge ◽  
Content Type ◽  
Pertinent Information ◽  
The Difference ◽  
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 Small businesses face some of the most challenging environments in which to succeed. Leadership within these organizations is what makes the difference, allowing success and longevity. Originality/value The briefing saves busy executives, strategists 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.

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