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Article
Publication date: 5 April 2011

Chih‐Peng Chu, Ci‐Rong Li and Chen‐Ju Lin

The purpose of this paper is to further understand the joint effect of project‐level exploratory and exploitative learning in new product development. It aims to examine…

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Abstract

Purpose

The purpose of this paper is to further understand the joint effect of project‐level exploratory and exploitative learning in new product development. It aims to examine the complicated relationships among exploratory learning, exploitative learning and new product performance at a single project level. In addition, it seeks to shed light on the contextual effects of a firm's market orientation on the relationship between joint occurrence of both learning activities and new product development performance.

Design/methodology/approach

The paper is based on a questionnaire survey/analysis of a sample of 298 projects from high‐tech firms in Taiwan.

Findings

The findings suggest that the joint occurrence of both learning activities has a positive effect on new product performance and depends upon a high level of one learning activity coupled with a small dose of the other. Drawing on cultural and behavioral perspectives of market orientation, the results also indicate that market orientation may enhance the joint effect of both learning activities on new product performance.

Practical implications

This paper offers insight to project managers with regard to the importance of rationally mixing with exploratory and exploitative learning during new product development. Furthermore, the study argues that market orientation is an alternative of organizational design that fosters the positive joint effect of both learning behaviors.

Originality/value

The results empirically support the theoretical argument that a high‐low matching of exploratory and exploitative learning can enhance performance at the level of a single project. The study provides a multiple‐level framework to understand how the firm‐level MO strengthens the positive effects of joint occurrence of project‐level exploratory and exploitative learning activities during new product development.

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European Journal of Marketing, vol. 45 no. 4
Type: Research Article
ISSN: 0309-0566

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Article
Publication date: 6 February 2017

Tolga Dursun and Costas Soutis

The purpose of this paper is to investigate the effect of fastener geometry (protruding head and countersunk fastener) and friction coefficient on the stress distributions…

Abstract

Purpose

The purpose of this paper is to investigate the effect of fastener geometry (protruding head and countersunk fastener) and friction coefficient on the stress distributions around the hole of the double-lap single bolted aluminium alloy joints.

Design/methodology/approach

3D finite element analyses of double-lap bolted 7075-T6 aluminium joints were carried out. An elastic-plastic multi-linear kinematic hardening material behaviour was assumed for the Al alloy. Contact was defined using an augmented-Langrange contact algorithm, including the friction effect. Bolt clamping force and remote axial tensile loading were applied in two load steps and their separate and combined effects on the joint behaviour were investigated for two types of fastener configurations.

Findings

It was observed that bolt clamping reduces the axial tensile stress at the hole edge by introducing a through-thickness compressive stress. This reduction in stress concentration may have a beneficial effect on the fatigue life of the joint. Second, bolt clamping reduces the bearing stress at the fastener hole by creating a frictional force between the joint plates. Results showed that the joint with protruding head fastener shows lower tensile stress concentration, and lower bearing stress, near the bolt hole of the middle plate.

Originality/value

Bolt clamping force reduces both the stress concentration near the hole edge and the bearing stress at the hole by creating a frictional force. Joint with a protruding head fastener may lead to higher load carrying capability and improved fatigue life. Friction coefficient affects the stress levels around the bolt hole.

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International Journal of Structural Integrity, vol. 8 no. 1
Type: Research Article
ISSN: 1757-9864

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Article
Publication date: 14 June 2019

Chao Liu, Mingyang Yang, Haoyu Han and Wenping Yue

To study fracture characteristics of jointed rock masses under blasting load, the RFPA2D analysis software for dynamic fracture of rocks based on the finite element method…

Abstract

Purpose

To study fracture characteristics of jointed rock masses under blasting load, the RFPA2D analysis software for dynamic fracture of rocks based on the finite element method and statistical damage theory was used.

Design/methodology/approach

On this basis, this research simulated the fracture process of rock masses in blasting with different joint geometrical characteristics and mainly analysed the influences of distance from joints to blasting holes, the length of joints, the number of joints and joint angle on fracture of rock masses.

Findings

The calculation results show that with the constant increase of the distance from joints to blasting holes, the influences of joints on blasting effects of rock masses gradually reduced. Rock masses with long joints experienced more serious damages than those with short joints. Damages obviously increased with the changing from rock masses without joints to rock masses with joints, and when there were three joints, the further increase of the number of joints had unobvious changes on blasting effects of rock masses. Joints showed significant guidance effect on the propagation of cracks in blasting: promoting propagation of main vertical cracks deflecting to the ends of joints.

Originality/value

The research results are expected to provide some theoretical bases in practical application of engineering blasting.

Details

Engineering Computations, vol. 36 no. 6
Type: Research Article
ISSN: 0264-4401

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Book part
Publication date: 26 August 2014

Hans T. W. Frankort

Firms tend to transfer more knowledge in technology joint ventures compared to contractual technology agreements. Using insights from new institutional economics, this…

Abstract

Firms tend to transfer more knowledge in technology joint ventures compared to contractual technology agreements. Using insights from new institutional economics, this chapter explores to what extent the alliance governance association with interfirm knowledge transfer is sensitive to an evolving industry norm of collaboration connected to the logic of open innovation. The chapter examines 1,888 dyad-year observations on firms engaged in technology alliances in the U.S. information technology industry during 1980–1999. Using fixed effects linear models, it analyzes longitudinal changes in the alliance governance association with interfirm knowledge transfer, and how such changes vary in magnitude across bilateral versus multipartner alliances, and across computers, telecommunications equipment, software, and microelectronics subsectors. Increases in industry-level alliance activity during 1980–1999 improved the knowledge transfer performance of contractual technology agreements relative to more hierarchical equity joint ventures. This effect was concentrated in bilateral rather than multipartner alliances, and in the software and microelectronics rather than computers and telecommunications equipment subsectors. Therefore, an evolving industry norm of collaboration may sometimes make more arms-length governance of a technology alliance a credible substitute for equity ownership, which can reduce the costs of interfirm R&D. Overall, the chapter shows that the performance of material practices that constitute innovation ecosystems, such as interfirm technology alliances, may differ over time subject to prevailing institutional norms of open innovation. This finding generates novel implications for the literatures on alliances, open innovation, and innovation ecosystems.

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Book part
Publication date: 30 December 2004

Shigeru Asaba and Hideki Yamawaki

This study examines the determinants of performance of foreign manufacturing subsidiaries in Japan. The study finds that a foreign parent’s size, the subsidiary’s age, and…

Abstract

This study examines the determinants of performance of foreign manufacturing subsidiaries in Japan. The study finds that a foreign parent’s size, the subsidiary’s age, and a complicated distribution system influence a subsidiary’s performance. There was little significant change in these determinants over a 20-year period. However, for subsidiaries that survived over the observation period of this study, some determinants changed. We also found that by forming joint ventures with Japanese firms, foreign firms can overcome the obstacle of distribution and circumvent the disadvantage of inexperience. Moreover, the mitigating effects of joint ventures vary, depending on the type of Japanese partner.

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Japanese Firms in Transition: Responding to the Globalization Challenge
Type: Book
ISBN: 978-0-76231-157-6

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Article
Publication date: 1 June 2000

I.A. Ashcroft, D.J. Hughes and S.J. Shaw

Fibre reinforced polymer composites (FRPs) are finding increasing usage in many industrial sectors. Adhesive bonding is often the most attractive joining technique for…

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2966

Abstract

Fibre reinforced polymer composites (FRPs) are finding increasing usage in many industrial sectors. Adhesive bonding is often the most attractive joining technique for these materials in terms of structural efficiency and cost of manufacture. However, concerns regarding the lack of reliable design methods, the long term ageing behaviour and the difficulties in non‐destructive evaluation and repair of bonded joints has led to a reluctance to use adhesives in primary structures. DERA has been involved in the assessment of adhesive bonding for joining FRPs for many years. This paper focuses on investigations at DERA into the effects that environment and fatigue loading have on the performance of bonded composite joints, and briefly reviews current approaches to strength and lifetime prediction. It is seen that adhesively bonded composite joints can be significantly affected by the service environment, however, this is highly dependent on the joint type and materials involved.

Details

Assembly Automation, vol. 20 no. 2
Type: Research Article
ISSN: 0144-5154

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Article
Publication date: 17 July 2009

Hamidreza Arabshahi and Vahid Lotfi

The purpose of this paper is to obtain an insight into the effects of sliding and/or joint opening at the contraction, perimeter and concrete lift joints on the nonlinear…

Abstract

Purpose

The purpose of this paper is to obtain an insight into the effects of sliding and/or joint opening at the contraction, perimeter and concrete lift joints on the nonlinear seismic response of arch dams.

Design/methodology/approach

The seismic behavior of a typical thin double curvature arch dam is studied by a nonlinear finite element program developed by the authors. Joints are modeled with the use of zero thickness interface elements. Various constitutive relationships are implemented to account for sliding and opening along the joints. Effects of joint sliding parameters and foundation rock flexibility are also considered in the analyses.

Findings

The findings provide information about dynamic stress distribution through the dam body and stability of the dam as a whole and also the local stability of the most critical concrete blocks in the dam body.

Practical implications

Useful information for designing new arch dams or seismic evaluation of constructed dams.

Originality/value

This paper takes into account the stability of concrete blocks in the dam body as well as stability of the structure as a whole. Except for contraction joints, perimeter and concrete lift joints are also modeled. Practical as well as detailed models of sliding are provided for the analyses. The paper offers practical help to design and dam engineers.

Details

Engineering Computations, vol. 26 no. 5
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 6 August 2020

Radoslaw Nowak

This paper aims to provide an alternative explanation for how organizations could increase levels of organizational identification, in turn reducing employee turnover…

Abstract

Purpose

This paper aims to provide an alternative explanation for how organizations could increase levels of organizational identification, in turn reducing employee turnover intention. Specifically, the study empirically tests the joint effect of two types of organizational resources – structural empowerment and serving culture (SE*SC) – on employee identification. Moreover, it investigates the mediating effect of organizational identification on the relationship between the joint effect (SE*SC) and turnover intention.

Design/methodology/approach

The data were collected in 2018 from employees working in a higher education institution located in the USA. Structural equation modeling was used to test the proposed model.

Findings

Statistical analysis reveals the positive joint effect (SE*SC) on organizational identification and the mediating effect of identification on the relationship between the joint effect (SE*SC) and turnover intention.

Originality/value

This study contributes to past research by revealing a new important mechanism. Business organizations could increase levels of employee identification and, in turn, reduce turnover by providing empowering resources that allow employees to successfully complete their jobs. Moreover, the study also contributes to practice by providing some recommendations that managers may implement to improve internal effectiveness in their respective organizations.

Details

Management Research Review, vol. 44 no. 2
Type: Research Article
ISSN: 2040-8269

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Article
Publication date: 1 March 1994

S. Liu and Y.H. Mei

Several finite element models were proposed to investigate the effects of voids and their interactions on SMT solder joint reliability in thermal mismatch loading. Both…

Abstract

Several finite element models were proposed to investigate the effects of voids and their interactions on SMT solder joint reliability in thermal mismatch loading. Both linear elastic analysis and non‐linear and time‐dependent finite element analysis were performed on models with different sizes and locations of voids in solder joints. The focus was on the interactions of the two voids. Various distances between voids are considered. Constitutive equations accounting for both plasticity and creep for one solder material were assumed and implemented in a finite element program. The following observations have been obtained: (i) the stress and strain in a solder joint of two voids are different from those of a one void joint; (ii) the stress and strain reach a maximum for a particular void size and location either along the interface of the solder joint or at the edges of voids; (iii) the initiation of interfacial debonding may be induced by the interaction of the voids; (iv) creep due to thermal cycling has a significant effect on solder joint reliability.

Details

Soldering & Surface Mount Technology, vol. 6 no. 3
Type: Research Article
ISSN: 0954-0911

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Article
Publication date: 7 August 2017

Esmaeil Salahshoor and Saeed Ebrahimi

The purpose of this paper is to investigate the effect of joint clearance on the behavior of a needle driver mechanism (a slider-crank linkage) of a typical sewing machine…

Abstract

Purpose

The purpose of this paper is to investigate the effect of joint clearance on the behavior of a needle driver mechanism (a slider-crank linkage) of a typical sewing machine with an imperfect joint between the coupler and the slider (including needle).

Design/methodology/approach

In order to model the clearance, the momentum exchange approach is used. The Lankarani and Nikravesh’s continuous contact force model is used to model the contact force, and the modified Coulomb’s friction law represents the friction between sliding members. The penetration force applied on the needle by fabric is chosen based on an experimental data in the literature. The dynamic response is validated for the existing properties in the literature without considering the penetration force.

Findings

It is shown that the clearance joint made considerable effect on the dynamic response of the system. The rough changes of the needle acceleration and jerk are obvious. The base reaction force changed roughly and did not vary as smooth as that of the mechanism with ideal joint. So, clearance joint in the mechanism could lead to an undesirable vibration in the system. Furthermore, the crank driver must provide a non-smooth moment on the crank to keep the crank rotational velocity constant. Moreover, reducing the clearance size sufficiently could make the dynamic response closer to that of the mechanism with ideal joint. In addition, smoother crank moment could be required if the clearance size is reduced sufficiently. Furthermore, the rough change of the base reaction force which can represent the vibration caused by the mechanism on the fixed frame could be reduced if the clearance size is small enough.

Originality/value

Lockstitch sewing machine is one of the most common apparel industrial machines. The needle driver mechanism of a sewing machine could have an important role for proper stitch forming. On the other hand, clearances are inevitable in assemblage of mechanisms to allow the relative motion between the members. This clearance is due to machining tolerances, wear, material deformations, and imperfections, and it can worsen mechanism performance such as precision, dynamic behavior and vibration. Unfortunately, despite the importance of the dynamic behavior of the needle driver mechanism from practical point of view, very little publications have focused especially on the investigation of the effect of clearance joint on the dynamic behavior of the sewing machine which could lead to undesired vibration of the system and shorter lifetime as a result. In this paper, the dynamic behavior of the system including, needle velocity and acceleration, crank moment and base reaction force was compared with that of the ideal mechanism. Finally, the effect of clearance size on the dynamic behavior of the system was investigated.

Details

International Journal of Clothing Science and Technology, vol. 29 no. 4
Type: Research Article
ISSN: 0955-6222

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