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Article
Publication date: 19 June 2019

Irina Röd

Family firms that simultaneously engage in multiple levels of innovation – incremental and radical – are likely to enjoy performance advantages across generations. The purpose of…

5137

Abstract

Purpose

Family firms that simultaneously engage in multiple levels of innovation – incremental and radical – are likely to enjoy performance advantages across generations. The purpose of this paper is to research under which management conditions (i.e. top management team (TMT) diversity in terms of generational or non-family involvement) family firms are more likely to achieve innovation ambidexterity. Also, the paper addresses the mediating role of open innovation (OI) breadth in this relationship.

Design/methodology/approach

A large cross-sectional sample of 335 small- and medium-sized family firms is used. The hypotheses were tested in a mediation model. The relationship between TMT diversity and ambidexterity is measured using a binominal regression analysis, the one between TMT diversity and OI breadth using a Tobit model.

Findings

Drawing on the family firm upper echelon perspective, the results indicate that TMT diversity induced through external managers and multiple generations is positively related to innovation ambidexterity. As the mediation analysis reveals, the relationship can be explained by the higher propensity of diverse TMTs to get involved in OI breadth. The findings add to the discussion on family firm heterogeneity and its influence on different kinds of innovation.

Originality/value

So far, few studies have been concerned with ambidextrous family firms. Contrary to their reputation, this study identifies family firms as radical as well as open innovators. As such, this research takes account not only of the heterogeneity of family firms, but also of the heterogeneity of family firm innovation.

Details

Journal of Family Business Management, vol. 9 no. 4
Type: Research Article
ISSN: 2043-6238

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Article
Publication date: 7 December 2020

Yu Chen, Irina Tatiana Garces, Tian Tang and Cagri Ayranci

The purpose of this paper is to demonstrate an innovative, fast and low-cost method to fabricate customized stents using polyurethane-based shape memory polymers composite…

354

Abstract

Purpose

The purpose of this paper is to demonstrate an innovative, fast and low-cost method to fabricate customized stents using polyurethane-based shape memory polymers composite reinforced by cellulose nanocrystal (CNC), achieved by a commercial desktop extrusion-based additive manufacturing (EBAM) device.

Design/methodology/approach

The composite filament for printing the stents was prepared by a two-step melt-compounding extrusion process. Afterward, the stents were produced by a desktop EBAM printer. Thermal characterizations, including thermo-gravimetric analysis (TGA) and modulated differential scanning calorimetry (modulated DSC), were conducted on stent samples and filament samples, respectively. Then the stents were programmed under 45°C. Recovery characterizations, including recovery force and recovery ratio measurement, were conducted under 40°C.

Findings

TGA results showed that the materials were stable under the printing temperature. Modulated DSC results indicated that, with the addition of CNCs, the glass transition temperature of the material dropped slightly from 39.7°C at 0 Wt.% CNC to 34.2°C at 7 Wt.% CNC. The recovery characterization showed that the stents can exert a maximum recovery force of 0.4 N/mm when 7 Wt.% of CNCs were added and the maximum recovery ratio of 35.8% ± 5.1% was found when 4 Wt.% of CNCs were added. The addition of CNC improved both the recovery ratio and the recovery force of the as-prepared stents.

Originality/value

In terms of recovery force, the as-prepared stents out-performed commercially available stents by 30 times. In addition, additive manufacturing offers more flexibility in the design and fabrication of customized cardiovascular stents.

Details

Rapid Prototyping Journal, vol. 27 no. 1
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 27 January 2021

Irina Tatiana Garces and Cagri Ayranci

A review on additive manufacturing (AM) of shape memory polymer composites (SMPCs) is put forward to highlight the progress made up to date, conduct a critical review and show the…

1142

Abstract

Purpose

A review on additive manufacturing (AM) of shape memory polymer composites (SMPCs) is put forward to highlight the progress made up to date, conduct a critical review and show the limitations and possible improvements in the different research areas within the different AM techniques. The purpose of this study is to identify academic and industrial opportunities.

Design/methodology/approach

This paper introduces the reader to three-dimensional (3 D) and four-dimensional printing of shape memory polymers (SMPs). Specifically, this review centres on manufacturing technologies based on material extrusion, photopolymerization, powder-based and lamination manufacturing processes. AM of SMPC was classified according to the nature of the filler material: particle dispersed, i.e. carbon, metallic and ceramic and long fibre reinforced materials, i.e. carbon fibres. This paper makes a distinction for multi-material printing with SMPs, as multi-functionality and exciting applications can be proposed through this method. Manufacturing strategies and technologies for SMPC are addressed in this review and opportunities in the research are highlighted.

Findings

This paper denotes the existing limitations in the current AM technologies and proposes several directions that will contribute to better use and improvements in the production of additive manufactured SMPC. With advances in AM technologies, gradient changes in material properties can open diverse applications of SMPC. Because of multi-material printing, co-manufacturing sensors to 3D printed smart structures can bring this technology a step closer to obtain full control of the shape memory effect and its characteristics. This paper discusses the novel developments in device and functional part design using SMPC, which should be aided with simple first stage design models followed by complex simulations for iterative and optimized design. A change in paradigm for designing complex structures is still to be made from engineers to exploit the full potential of additive manufactured SMPC structures.

Originality/value

Advances in AM have opened the gateway to the potential design and fabrication of functional parts with SMPs and their composites. There have been many publications and reviews conducted in this area; yet, many mainly focus on SMPs and reserve a small section to SMPC. This paper presents a comprehensive review directed solely on the AM of SMPC while highlighting the research opportunities.

Details

Rapid Prototyping Journal, vol. 27 no. 2
Type: Research Article
ISSN: 1355-2546

Keywords

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Article
Publication date: 13 May 2021

Irina Lyan

This paper aims to propose to politicize partner choice as a discourse that rationalizes, legitimizes and justifies the choice of partners by underlining economic, cultural and…

617

Abstract

Purpose

This paper aims to propose to politicize partner choice as a discourse that rationalizes, legitimizes and justifies the choice of partners by underlining economic, cultural and institutional differences to (re)create power relations. By reconceptualizing partner choice as a discourse, the paper challenges the established view of partner choice according to international business and management studies as a rational and strategic behavior based on resource complementarity, best practices and win–win situations.

Design/methodology/approach

Based on the longitudinal study of Israeli–Korean business collaboration, which includes in-depth interviews, observations and media texts, this paper uses critical discourse analysis (CDA) to demystify partner choice as neither a neutral nor an objective behavior to unveil its discursive construction and embeddedness in power relations.

Findings

The actors on both sides of the Israeli–Korean business collaboration evoke resource complementary discourse between “Israeli innovation” and “Korean productivity” to rationalize their partner choice as a win–win situation. CDA demonstrates how both sides are engaged in a “borrowing” process from east-to-west and head-to-hands postcolonial images to (re)produce hierarchy between the parties. While east–west mapping remained almost unchallengeable, the reversal, crossing and blurring of the Israel-to-Korea knowledge transfer direction provides a counter-narrative to resource complementarity discourse.

Originality/value

The resource complementarity discourse supported by east–west mapping and “head–hands” justifications for partner choice reveals the lingering presence of postcolonial images, imagery and imagination. By taking two nations without substantial troubled memories, histories and relations, the paper broadens the picture beyond national contexts, emphasizing the importance of borrowing and translation from postcolonial vocabulary to non-colonial situations.

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Article
Publication date: 13 February 2017

Kahoul Hafida, Chaib Rachid and Bellaouar Ahmed

Because of non-satisfactory results obtained at the iron rods steel mill, during the last period of work and to collect relevant data to facilitate rapid and efficient…

352

Abstract

Purpose

Because of non-satisfactory results obtained at the iron rods steel mill, during the last period of work and to collect relevant data to facilitate rapid and efficient decision-making, the purpose of this study is to describe a global analysis method of risks encountered by companies resulting from their own effects or by their environment to integrate prevention as soon as the conception of work place. From this point of view, it seems that it is time for companies that did learn to master direct costs to learn how to control indirect costs, which means controlling the risks and learning to face them once they are detected.

Design/methodology/approach

The method of work used is hazard identification and risk assessment (HIRA), which is based on Kinney evaluation. The HIRA allowed the authors to collect and analyze different dangers and risks at work posts and consider different corrective measures to prevent damages. The HIRA techniques are based on identifying the different hazardous situations and the risk related to each working station; the risks are identified and are classified and mitigated accordingly. Using unique criteria, the objective of the risk assessment part is to assign to each risk a numerical value. The criteria used for classifying and ordering the risk importance depend greatly on the selected method.

Findings

Risks are identified, classified and mitigated accordingly using Kinney method criteria depending on three factors: frequency of exposure (NE), probability of occurrence (NP) and severity level (NG). The level of risk mitigation (NM) is obtained as the product of the three factors (NP, NG and NE). Using the Pareto plot (20-80 per cent), the authors highlighted the priorities to be taken in the order of importance of the most important causes to take targeted measures.

Originality/value

This work is an opportunity for the steel mill complex to start a global approach in prevention of risks and improve working conditions. This can be reached by taking into consideration the technical, organizational and human solutions; It would not be a better method to search for ways and means to reach better prevention of industrial and technological risks, but it will preserve health of workers and get to a global higher level of security. Also, the steel mill complex can be engaged in a continuous improvement process. Therefore, management of risks will be a relevant way to decrease undesirable effects due to the diverse activities of the company.

Details

World Journal of Engineering, vol. 14 no. 1
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 4 September 2023

Fang Xie, Xufan Zhang, Jing Ye, Lulu Zhou, Wenjian Zhang and Feng Tian

Based on the resource conservation theory, this research paper aims to evaluate the positive impact of customer orientation on frontline employees' emotional exhaustion and the…

598

Abstract

Purpose

Based on the resource conservation theory, this research paper aims to evaluate the positive impact of customer orientation on frontline employees' emotional exhaustion and the moderating effects of customer incivility and supervisor monitoring.

Design/methodology/approach

Two-wave data from 484 frontline employees in power supply business halls were analyzed. This study used AMOS 23.0, SPSS22.0 and PROCESS macro for data statistics and analysis.

Findings

Our empirical research demonstrates that customer orientation has a significant positive impact on frontline employees' emotional exhaustion. At the same time, supervisor monitoring moderates the relationship between customer orientation and emotional exhaustion. The higher the interactional or observational monitoring, the stronger customer orientation's effect on frontline employees' emotional exhaustion. Moreover, a three-way interaction model exists between customer orientation, customer incivility and supervisor monitoring.

Practical implications

This study yields practical implications for helping the frontline employees of service-oriented organizations alleviate multiple interpersonal workplace pressures.

Originality/value

Based on resource conservation theory, this paper used a novel approach to focus on customer orientation, customer incivility and supervisor monitoring as interpersonal stressors.

Details

Journal of Service Theory and Practice, vol. 33 no. 6
Type: Research Article
ISSN: 2055-6225

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Article
Publication date: 4 June 2024

Muhammad Haroon, Raja Bilal Nasar Khan and Anwar Khitab

Present work deals with the partial substitution of cement by waste demolished concrete powder (WDP) for reducing the carbon footprints of concrete.

41

Abstract

Purpose

Present work deals with the partial substitution of cement by waste demolished concrete powder (WDP) for reducing the carbon footprints of concrete.

Design/methodology/approach

Control specimens and the specimens with 20% WDP as fractional substitute of cement were prepared. The waste powder was thermally activated at 825 °C prior to its use in the mix. The prepared specimens were evaluated in terms of density, workability, mechanical strength, Ultrasonic pulse velocity (UPV) and rebound hammer (RH).

Findings

The results showed that with the substitution, the workability of the mix increased, while the density decreased. A decrement within a 20% limit was found in compressive strength. The UPV and RH results were closely linked to the other results as mentioned above.

Research limitations/implications

The study deals with only M15 concrete and the substitution level of only 20% as a baseline.

Practical implications

The concrete containing 20% WDP is lightweight and more workable. Moreover, its strength at 28 days is 14 MPa, only 1 MPa lesser than the characteristic strength.

Social implications

The WDP can be recycled and the dumping in landfills can be reduced. This is an important effort towards the decarbonation of concrete.

Originality/value

Previous literature indicates that the WDP has been frequently used as a partial replacement of aggregates. However, some traces of secondary hydration were also reported. This work considers the effect of partial substitution of cement by the WDP.

Details

International Journal of Building Pathology and Adaptation, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2398-4708

Keywords

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