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Article
Publication date: 18 May 2012

Elizabeth Torney Welsh, Devasheesh Bhave and Kyoung yong Kim

The purpose of this study is to understand the extent to which potential mentors and protégés agree that an informal mentoring relationship exists. Because these…

Abstract

Purpose

The purpose of this study is to understand the extent to which potential mentors and protégés agree that an informal mentoring relationship exists. Because these relationships are generally tacitly understood, either the mentor or protégé could perceive that there is a mentoring relationship when the other person does not agree. Whether gender affects this is also to be examined.

Design/methodology/approach

Individuals were asked to identify their mentoring partners. Each report of a partner was then compared to the partner's list to determine whether there was a match (i.e. both reported the relationship as an informal mentoring relationship) or a mismatch (i.e. where one partner reported the relationship as an informal mentoring relationship but the other did not). This pattern of matches and mismatches was then analyzed to determine level of matching and gender differences.

Findings

There is little agreement between mentoring partners: neither potential protégés nor potential mentors were very accurate at identifying reciprocal informal mentoring partners. However, gender was not found to be related to different levels of matching.

Originality/value

Previous work has not examined whether potential informal mentoring partners perceive the relationship in the same way. This has implications for employees who are depending upon their mentoring partners for support that may not be forthcoming because the partner does not view the relationship similarly. The findings also have implications for researchers, particularly when studying mentoring relationships from only one perspective and implicitly assuming agreement between partners.

Details

Career Development International, vol. 17 no. 2
Type: Research Article
ISSN: 1362-0436

Keywords

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Article
Publication date: 10 October 2008

Yan Lu and Yoo‐Kyoung Seock

The purpose of this study is to identify grey consumers' perceived service quality at department stores and to examine the relationships between perceived service quality…

Abstract

Purpose

The purpose of this study is to identify grey consumers' perceived service quality at department stores and to examine the relationships between perceived service quality, their satisfaction and loyalty to those stores.

Design/methodology/approach

A structured questionnaire was developed to collect the data. Factor analysis was employed to identify dimensions of grey consumers' perceived service quality. Multiple regression analyses were conducted to examine the relationships between grey consumers' perceived service quality at department stores and their satisfaction and loyalty behaviors at those stores.

Findings

Three service quality dimensions were identified. The results showed that all three service quality dimensions in the study were significantly and positively related to their satisfaction at their favorite department stores and overall loyalty behavior to those stores. Among three service quality dimensions, personal interaction was the strongest predictor of both grey consumers' satisfaction and overall loyalty behavior. Personal interaction was identified as the most significant factor for promoting positive word of mouth and store image for repeat purchase intention.

Practical implications

With this study, department stores' managers would be able to better understand grey consumers and thereby take advantage of the potential purchasing opportunities of this powerful consumer market. This study also may contribute to the department stores' management in allocating their resources to improve service in a more effective way to satisfy grey consumers.

Originality/value

Despite the increasing purchasing potential this powerful market has created, grey consumers' shopping behavior is under‐researched and their needs are still unmet in the market place.

Details

International Journal of Retail & Distribution Management, vol. 36 no. 11
Type: Research Article
ISSN: 0959-0552

Keywords

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Article
Publication date: 10 June 2019

Xianwei Liu, Huacong Li, Xinxing Shi and Jiangfeng Fu

The purpose of this paper is to improve the hydraulic efficiency without changing the overall dimension. The blade profile optimization design of the aero-centrifugal pump…

Abstract

Purpose

The purpose of this paper is to improve the hydraulic efficiency without changing the overall dimension. The blade profile optimization design of the aero-centrifugal pump based on the biharmonic equation surrogate model has been studied.

Design/methodology/approach

First of all, Bezier curves and linear function are used to control the annular angle distribution and the stacking angle of blade profile under the MATLAB platform. Grid independence analysis has been studied to find the finest mesh scheme. After the precision comparison of test data and computation fluid dynamics 15 sets of design parameters are carried out as the boundary condition of the biharmonic equation. The efficiency surrogate model of the biharmonic equation is constructed via iteratively solving of a discrete difference equation. The other two surrogate models of response surface model (RSM) and radial basis function neural network surrogate model (RBFNNSM) are compared with the biharmonic equation surrogate model by the standard of modified complex correlation coefficient R2 and root mean square deviation (RSME). Finally, the artificial fish swarm algorithm has been used to find the global optimal design parameters with the objective function of highest efficiency.

Findings

The results show that the design parameters code conversion method can reduce the number of optimization parameters from five to three, makes the design space become a cube, and compared with RSM and RBFNNSM, the biharmonic equation surrogate model has higher precision with R2 is 0.8958, RSME is 0.1382. The final optimum result of AFSA is at the point of [1 −1 −1]. The internal flow field analysis shows that after optimization the outlet relative velocity becomes more uniform and the wake effect has been significantly decreased. The hydraulic efficiency of the optimized pump is about 59.45 per cent increasing 5.4 per cent compared with a prototype pump.

Originality/value

This study developed a new method to optimize the design parameters of aero-centrifugal pump impeller based on biharmonic equation surrogate model, which had a good agreement with experimental values within just 15 sets of the original design. The optimization results shows that the method can improve the hydraulic efficiency significantly.

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