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Article
Publication date: 28 July 2021

Yue Long, Lang Lu and Pan Liu

The purpose of this paper is to solve the problem of low efficiency on knowledge resources allocation in the strategic emerging industry (SEI), an incentive model of…

Abstract

Purpose

The purpose of this paper is to solve the problem of low efficiency on knowledge resources allocation in the strategic emerging industry (SEI), an incentive model of technology innovation based on knowledge ecological coupling is designed.

Design/methodology/approach

First, a principal–agent model of knowledge inputs and a knowledge ecological coupling model based on an improved Lotka–Volterra model are constructed. In addition, a numerical example about Chongqing Yongchuan industrial park, the emulation analysis and the associated discussions are conducted to analyze the equilibriums of principal–agent in different knowledge inputs. Further, the paper analyzes the evolutionary equilibrium in knowledge ecological coupling and reveals the dual adjustments of the node organization on knowledge inputs.

Findings

Thus, this paper shows that by establishing the relationships of knowledge ecological coupling based on “mutualism and commensalism,” node organization raises the level of knowledge inputs; an incentive mode of “knowledge ecological coupling relationship + technology innovation chain” is conductive to substantially improving the efficiency of knowledge resource allocation, and to stimulate the vitality of node organization for technology innovation in the strategic emerging industry (SEI).

Originality/value

This paper contributes to the extant researches in two ways. First, this paper reveals the dual adjustments of the node organizations in inputting knowledge, which broadens the vision and borders of the researches on traditional knowledge management. The methods of the traditional principal–agent model and the knowledge input/output profit model are also expanded. Second, this paper verifies that applying the mode of “knowledge ecological coupling relationship + technology innovation chain” in practice is conducive to enhancing the efficiency of the cross-organizational knowledge allocation in the strategic emerging industry (SEI).

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

Keywords

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Article
Publication date: 26 July 2021

Tracy Scurry and Marilyn Clarke

Dual-careers are an increasingly common typology among professionals yet very few studies have considered how two potentially competing career trajectories are managed in…

Abstract

Purpose

Dual-careers are an increasingly common typology among professionals yet very few studies have considered how two potentially competing career trajectories are managed in relation to the broader aspects of life, such as family and personal life. This article addresses the gap through an exploration of the strategies adopted by dual-career professional couples as they seek to navigate these challenges whilst satisfying individual and shared goals and aspirations.

Design/methodology/approach

Semi-structured, face-to-face interviews were carried out with 18 couples (dyads) from a range of professional occupations. Interviews were conducted individually, and then responses analysed and compared for key themes.

Findings

Rather than focusing on how couples manage work–life balance on a day-today basis this study shows how couples incorporate a more strategic approach to dual-careers so that both careers are able to progress, albeit within situational constraints.

Practical implications

To satisfy personal, business and economic performance goals, organisations and governments will need to find more creative ways to support employees as they seek to navigate careers while balancing the work and nonwork needs of themselves and their partner. The challenges faced by dual-career couples have implications for human resource managers as they seek to attract and retained talent within their organisations.

Social implications

Demographic and social changes at the household level will ultimately require changes at an organisational and broader societal level to meet the work and family needs of this growing cohort.

Originality/value

Rather than focusing on how couples manage work-life balance on a day-today basis this study shows how couples incorporate a more strategic approach to dual-careers so that both careers are able to progress, albeit within situational constraints.

Details

Personnel Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0048-3486

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Article
Publication date: 15 November 2013

Mohd Hafizi Shamsudin, Jingjing Chen and Christopher B. York

The purpose of this paper is to investigate the buckling strength of simply supported plates with mechanical extension-twisting coupling. Bounds of the compression…

Abstract

Purpose

The purpose of this paper is to investigate the buckling strength of simply supported plates with mechanical extension-twisting coupling. Bounds of the compression buckling strength are presented for a special sub-class of extension-twisting coupled laminate that is free from the thermal distortions that generally arise in this class of coupled laminate as a result of the high temperature curing process. These special laminates are generally referred to as hygro-thermally curvature-stable (HTCS).

Design/methodology/approach

This paper gives an overview of the methodology for developing laminates with extension-twisting coupling properties, which are derived from a parent laminate with HTCS properties. A closed form buckling solution is applicable for this special class of coupled laminate, which facilitates an assessment of compression buckling strength performance for the entire laminate design space.

Findings

Extension-twisting coupled laminates have potential applications in the design of aero-elastic compliant rotor blades, where the speed of the rotating blade, and the resulting centrifugal force, can be used to control blade twist. Extension-twisting coupling reduces the compression buckling performance of the blade, which represents an important static design constraint. However, the performance has been shown to be higher than competing designs with extension-shearing coupling in many cases.

Originality/value

Bounds of the buckling curves have been presented for the entire HTCS laminate design space, possessing extension-twisting and shearing-bending coupling, in which the laminates contain standard ply angle orientations and up to 21 plies. These laminates can be manufactured without the undesirable thermal warping distortions that generally affect this class of coupled laminate, and in particular, those containing angle plies only; previously thought to be the only form of laminate design from which this particular type of mechanical coupling can be derived.

Details

International Journal of Structural Integrity, vol. 4 no. 4
Type: Research Article
ISSN: 1757-9864

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Article
Publication date: 8 June 2012

Baohua Yang, Shili Fang and Jinshuai Zhao

The purpose of this paper is to attempt to realize a complete analysis at scenario deduction of unconventional incidents coupling based on the GERTS network method.

Abstract

Purpose

The purpose of this paper is to attempt to realize a complete analysis at scenario deduction of unconventional incidents coupling based on the GERTS network method.

Design/methodology/approach

Starting from the manifestation of coupling objects, three types of emergency coupling are analyzed according to different rules, which are “events‐events” coupling, “event‐factors” coupling and “factors‐factors” coupling. Then the coupling mechanism for emergency is focused on analyzing, and the concepts of three types of coupling are put forward, at the same time, three quantitative models for coupling mechanisms are present. Also, a case was discussed to verify the analysis of coupling mechanism of emergency.

Findings

According to the types of factors rules, the classes of coupling of emergency have been divided into three types. The coupling mechanism of emergency can be used to describe the novel coupling models.

Practical implications

This research provides the method for coupling analysis in the scenario of unconventional incidents and guides the emergency managers to develop contingency strategies.

Originality/value

The paper succeeds in constructing a novel coupling model for emergency, and it could provide an effective tool for a quantitative study on unconventional incidents coupling.

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Article
Publication date: 6 July 2012

Sucheng Liu, Luowei Zhou, Weiguo Lu and Anxin Li

The purpose of this paper is to model and analyze energy transfer through near‐field resonant coupling for high power light‐emitting diode (HPLED) illumination, with the…

Abstract

Purpose

The purpose of this paper is to model and analyze energy transfer through near‐field resonant coupling for high power light‐emitting diode (HPLED) illumination, with the intention to increase the appreciation and use of the coupled mode theory (CMT) other than the usual equivalent circuit method.

Design/methodology/approach

The CMT is extensively used to analyze the wireless energy transfer system because of its generality, simplicity, accuracy and intuitive understanding of near‐field resonant energy coupling mechanism.

Findings

The CMT forms a general way to model and analyze the non‐radiative magnetic resonant coupling systems. It is suitable not only for low frequency coupling but also for high frequency (of million‐Hertz) in which the circuit parameters are not easily obtained. Optimal coupling condition corresponding to the maximum power transfer is identified based on the CMT, and the multiple limit cycle phenomenon caused by the nonlinear nature of the HPLED is also described on the CMT model.

Originality/value

This paper takes advantages of CMT, i.e. generality, simplicity, accuracy and intuitive understanding to analyze the near‐field resonant energy coupling system. Key characteristics of the systems are explored based on the CMT, not the usual equivalent circuit method. The influence of nonlinear nature of the high power LED on energy transfer is also investigated. This work seeks a more general way than conventional equivalent circuit method to model and analyze the resonant magnetic system and the results obtained could facilitate better understanding of the resonant magnetic coupling mechanism and optimal design of the near‐field energy transfer system.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 31 no. 4
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 4 September 2017

Matthias Jüttner, Andreas Pflug, Markus Wick and Wolfgang M. Rucker

Multiphysics problems are solved either with monolithic or segregated approaches. For accomplishing contrary discretisation requirements of the physics, disparate meshes…

Abstract

Purpose

Multiphysics problems are solved either with monolithic or segregated approaches. For accomplishing contrary discretisation requirements of the physics, disparate meshes are essential. This paper is comparing experimental results of different interpolation methods for a segregated coupling with monolithic approaches, implemented using a global and a local nearest neighbour method. The results show the significant influence of discretisation for multiphysics simulation.

Design/methodology/approach

Applying disparate meshes to the monolithic as well as the segregated calculation of finite element problems and evaluating the related numerical error is content of the contribution. This is done by an experimental evaluation of a source and a material coupling applied to a multiphysics problem. After an introduction to the topic, the evaluated multiphysics model is described based on two bidirectional coupled problems and its finite element representation. Afterwards, the considered methods for approximating the coupling are introduced. Then, the evaluated methods are described and the experimental results are discussed. A summary concludes this work.

Findings

An experimental evaluation of the numerical errors for different multiphysics coupling methods using disparate meshes is presented based on a bidirectional electro-thermal simulation. Different methods approximating the coupling values are introduced and challenges of applying these methods are given. It is also shown, that the approximation of the coupling integrals is expensive. Arguments for applying the different methods to the monolithic and the segregated solution strategies are given and applied on the example. The significant influence of the mesh density within the coupled meshes is shown. Since the projection and the interpolation methods do influence the result, a careful decision is advised.

Originality/value

In this contribution, existing coupling methods are described, applied and compared on their application for coupling disparate meshes within a multiphysics simulation. Knowing their performance is relevant when deciding for a monolithic or a segregated calculation approach with respect to physics dependent contrary discretisation requirements. To the authors’ knowledge, it is the first time these methods are compared with a focus on an application in multiphysics simulations and experimental results are discussed.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 36 no. 5
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 16 September 2011

J. Dale Munro

The purpose of this paper is to discuss a model of couple intervention that has been specifically developed for helping people with intellectual disabilities who are…

Abstract

Purpose

The purpose of this paper is to discuss a model of couple intervention that has been specifically developed for helping people with intellectual disabilities who are experiencing relationship problems.

Design/methodology/approach

Among other suggestions, the model recommends assessing and working not only with the couple, but also with extended family and the service system. An agency staff, familiar with the couple, is frequently asked to act as co‐therapist.

Findings

Private couple therapy sessions have proven extremely valuable, along with specific strategies that focus on management of issues such as anger and jealousy, sexuality issues, ways partners can complement and compensate for each other's weaknesses, healthy boundary‐setting, having fun, and utilizing psychiatric consultation if necessary.

Originality/value

There is almost no other clinical literature on this topic. This paper offers practical suggestions and is quite unique in the field.

Details

Advances in Mental Health and Intellectual Disabilities, vol. 5 no. 5
Type: Research Article
ISSN: 2044-1282

Keywords

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Article
Publication date: 1 December 2002

Brian Rowan

In this paper, I argue that ideas about loose coupling can serve a useful purpose in organization theory, but only if they are re‐worked substantially. This re‐working, I…

Abstract

In this paper, I argue that ideas about loose coupling can serve a useful purpose in organization theory, but only if they are re‐worked substantially. This re‐working, I argue, will involve merging ideas about loose coupling with ideas found in other lines of work developed contemporaneously, including research on the “new” managerialism, institutional theory, and organizational ecology. Such a re‐working, I hope, will entail closer attention to the elements in educational systems that can be coupled and to an expanded list of coupling mechanisms. Using this expanded list of coupling mechanisms, and thinking more clearly about how educational organizations are embedded in dense and complex webs of couplings calls for a movement away from an exclusive concern with loose and tight couplings among dyadic elements in organizational systems, and toward a concern with “tangled” couplings.

Details

Journal of Educational Administration, vol. 40 no. 6
Type: Research Article
ISSN: 0957-8234

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Article
Publication date: 6 August 2019

Guo Xiang Guo Xiang, Yanfeng Han, Renxiang Chen, Jiaxu Wang Jiaxu Wang and Ni Xiaokang

This paper aims to present a numerical model to investigate the mixed lubrication performances of journal-thrust coupled bearings (or coupled bearings).

Abstract

Purpose

This paper aims to present a numerical model to investigate the mixed lubrication performances of journal-thrust coupled bearings (or coupled bearings).

Design/methodology/approach

The coupled hydrodynamic effect (or coupled effect) between the journal and the thrust bearing is considered by ensuring the continuity of the hydrodynamic pressure and the flow field at the common boundary. The mixed lubrication performances of the coupled bearing are comparatively studied for the cases of considering and not considering coupled effect.

Findings

The simulated results show that the hydrodynamic pressure distributions for both the journal and thrust bearing are modified due to the coupled effect. The decreased load capacity of the journal bearing and the increased load capacity of the thrust bearing can be observed when the coupled effect is considered. And the coupled effect can facilitate in reducing the asperity contact load for both the journal and thrust bearing. Additionally, the interaction between the mixed lubrication behaviors, especially for the friction coefficient, of the journal and the thrust bearing is significant in the elastohydrodynamic lubrication regime, while it becomes weak in the mixed lubrication regime.

Originality/value

The developed model can reveal the mutual effects of the mixed lubrication behavior between the journal and the thrust bearing.

Details

Industrial Lubrication and Tribology, vol. 71 no. 9
Type: Research Article
ISSN: 0036-8792

Keywords

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Article
Publication date: 1 October 2018

Yunlong Zhong, Lijian Wu, Youtong Fang and Xiaoyan Huang

The purpose of this paper is to investigate and restrain the cross-coupling effect among X, Y and Z-axes of a three degrees of freedom hybrid magnetic bearing (3-DOF HMB)…

Abstract

Purpose

The purpose of this paper is to investigate and restrain the cross-coupling effect among X, Y and Z-axes of a three degrees of freedom hybrid magnetic bearing (3-DOF HMB). The influence of the cross-coupling effect on the force characteristics and stiffnesses are analysed. Two additional methods are proposed to eliminate the cross-coupling effect.

Design/methodology/approach

Analysis with finite element method (FEM) is time-consuming because of the requirement of a 3D model for the studied 3-DOF HMB. Hence, an improved magnetic circuit model considering the leakage, cross-coupling and saturation effects is used to investigate the cross-coupling effect in this paper. In addition, two restraining methods are proposed. One is adding an auxiliary coil between radial and axial stators. The other is adding an iron ring between the PM and radial or axial stator.

Findings

The X-axis (or Y-axis) force characteristics and stiffnesses are significantly influenced by the Z-axis current, while other axes force characteristics and stiffnesses do not show the cross-coupling effect. Moreover, this cross-coupling effect is inversely related to the distance between axial thrust disk and radial MB part. Besides, adding an auxiliary coil can effectively eliminate the cross-coupling effect in whole work range and adding an iron ring can reduce the cross-coupling effect.

Originality/value

The cross-coupling effect and its restraining methods of a 3-DOF HMB are investigated, which is beneficial to the design and control of such 3-DOF HMB.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 37 no. 6
Type: Research Article
ISSN: 0332-1649

Keywords

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