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Article
Publication date: 20 August 2019

Vipin Gupta, Lawrence Rose and Ricardo Vinícius Dias Jordão

Abstract

Details

Management Research: Journal of the Iberoamerican Academy of Management, vol. 17 no. 2
Type: Research Article
ISSN: 1536-5433

Article
Publication date: 3 April 2017

Stephanie Solansky, Vipin Gupta and Jifu Wang

This paper is a regional exploratory study of implicit leadership theories in two regions of China. The purpose of this paper is to compare ideal vs Confucian leadership profiles…

Abstract

Purpose

This paper is a regional exploratory study of implicit leadership theories in two regions of China. The purpose of this paper is to compare ideal vs Confucian leadership profiles and explore the possibility of a cultural hybrid perspective of leadership.

Design/methodology/approach

This study empirically explores leadership profiles through indigenous leadership research and compares implicit leadership theories of Confucian leadership and ideal leadership among a group of 128 managers representing two regions in mainland China. In doing so, measures developed by Global Leadership and Organizational Behavior Effectiveness that were translated into the local language are employed.

Findings

The results empirically show that a region known to have a deeper cultural entrenchment interprets Confucian ideology as ideal leadership, while a region more disconnected from the cultural center transforms its ideology based on more globally accepted leadership ideals.

Practical implications

The findings of this study caution leadership researchers (whether universally-etic or specifically-emic focused) from making generalizations regarding leadership. Although there might be some broad universals of leadership, context-specific leadership practices are deeply rooted between and within cultures.

Originality/value

This paper contributes to the literature by providing insight on implicit leadership theories in China and by proposing a culturally hybrid perspective of leadership based on globalization and cultural entrenchment forces.

Details

Leadership & Organization Development Journal, vol. 38 no. 2
Type: Research Article
ISSN: 0143-7739

Keywords

Article
Publication date: 5 October 2023

Vipin Gupta and M.S. Barak

This study aims to examine the impacts of higher memory dependencies on a novel semiconductor material that exhibits generalized photo-piezo-thermo-elastic properties…

Abstract

Purpose

This study aims to examine the impacts of higher memory dependencies on a novel semiconductor material that exhibits generalized photo-piezo-thermo-elastic properties. Specifically, the research focuses on analyzing the behavior of the semiconductor under three distinct temperature models.

Design/methodology/approach

The study assumes a homogeneous and orthotropic piezo-semiconductor medium during photo-thermal excitation. The field equations have been devised to encompass higher order parameters, temporal delays and a specifically tailored kernel function to address the problem. The eigenmode technique is used to solve these equations and derive analytical expressions.

Findings

The research presents graphical representations of the physical field distribution across different temperatures, higher order plasma heat conduction models and time. The results reveal that the amplitude of the distribution profile is markedly affected by factors such as the memory effect, time, conductive temperature and spatial coordinates. These factors cannot be overlooked in the analysis and design of the semiconductor.

Research limitations/implications

Specific cases are also discussed in detail, offering the potential to advance the creation of precise models and facilitate future simulations.

Practical implications

The research offers valuable information on the physical field distribution across various temperatures, allowing engineers and designers to optimize the design of semiconductor devices. Understanding the impact of memory effect, time, conductive temperature and spatial coordinates enables device performance and efficiency improvement.

Originality/value

This manuscript is the result of the joint efforts of the authors, who independently initiated and contributed equally to this study.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 1
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 17 July 2023

Anand Kumar Yadav, M.S. Barak and Vipin Gupta

This paper aims to study the impact of pyro-electricity, moisture and temperature diffusivity on the energy distribution of plane waves at the free surface of an orthotropic…

Abstract

Purpose

This paper aims to study the impact of pyro-electricity, moisture and temperature diffusivity on the energy distribution of plane waves at the free surface of an orthotropic piezo-hygro-thermo-elastic medium.

Design/methodology/approach

This study presents the novel creation of governing equations for an anisotropic piezothermoelastic medium with moisture impact, which is a significant contribution of this paper.

Findings

In addition to providing numerical data for the amplitude ratios and energy ratios of reflected waves, this study identifies five different kinds of coupled reflected plane waves, namely, quasi-longitudinal P wave, quasi-thermal wave, quasi-transverse wave, quasi-moisture wave and electric potential wave.

Research limitations/implications

The graphical analysis examines the impact of various factors, such as the angle of incidence, moisture and temperature diffusivity, pyro-electricity and frequency, on energy distribution.

Practical implications

This paper's results significantly impact the development of more efficient piezoelectric materials and their applications in geophysics.

Originality/value

The authors of the submitted document initiated and produced it collectively, with equal contributions from all members.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 10
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 19 November 2019

Ricardo Vinícius Dias Jordão, Jorge Novas and Vipin Gupta

This paper aims to analyze the role of a knowledge-based network (k-network) in the intellectual capital (IC) and organizational performance of Brazilian small and medium-sized…

Abstract

Purpose

This paper aims to analyze the role of a knowledge-based network (k-network) in the intellectual capital (IC) and organizational performance of Brazilian small and medium-sized enterprises (SMEs).

Design/methodology/approach

This paper presents a descriptive, qualitative and applied case study, developed taking into account the theories of strategy, IC, networks and finance to analyze the relationship between k-network and the generation of IC and organizational performance in a multifocal perspective (observed in terms of financial and marketing results, efficiency and efficacy and innovation and competitiveness) in Brazilian SMEs.

Findings

The findings showed that k-network plays a crucial role in the generation of the IC and improvements in organizational performance in SMEs. In addition, the results revealed the strategic relevance of the relationship between people and enterprises to master the process of creation and sharing information and knowledge in the analyzed network. Taken as a whole, the conclusions demonstrated the establishment of IC (in its three dimensions) as a consequence of the strategic association of SMEs in k-network, as well as the mediation role of IC as a way to promote improvements in organizational performance, considering the observed amelioration in financial results, marketing growth, efficiency, efficacy, innovation and competitiveness.

Research limitations/implications

This research provides theoretical contributions by broadening knowledge of the practical relationship between k-network, IC and the multifocal perspective of SMEs organizational performance – a relevant and underexplored issue in the literature, offering several avenues for future research.

Practical implications

The results highlight the economic, political and social relevance of SMEs and the strategic use of k-network to overcome SMEs organizational, financial and managerial difficulties. In such context, analysts, managers, businesspeople and other decision-makers are expected to use this type of network to improve the IC, in its human, relational and structural dimensions, mastering companies’ knowledge and sustainable organizational performance.

Originality/value

The paper fills a significant research gap, revealing how k-networks can and should be used as a deliberate strategy by SMEs to create, acquire, use, absorb and share information and knowledge, as well as to generate IC, thus providing organizational, financial, innovative and competitive benefits to these enterprises and their network.

Article
Publication date: 11 March 2024

Vipin Gupta, Barak M.S. and Soumik Das

This paper addresses a significant research gap in the study of Rayleigh surface wave propagation within a piezoelectric medium characterized by piezoelectric properties, thermal…

Abstract

Purpose

This paper addresses a significant research gap in the study of Rayleigh surface wave propagation within a piezoelectric medium characterized by piezoelectric properties, thermal effects and voids. Previous research has often overlooked the crucial aspects related to voids. This study aims to provide analytical solutions for Rayleigh waves propagating through a medium consisting of a nonlocal piezo-thermo-elastic material with voids under the Moore–Gibson–Thompson thermo-elasticity theory with memory dependencies.

Design/methodology/approach

The analytical solutions are derived using a wave-mode method, and roots are computed from the characteristic equation using the Durand–Kerner method. These roots are then filtered based on the decay condition of surface waves. The analysis pertains to a medium subjected to stress-free and isothermal boundary conditions.

Findings

Computational simulations are performed to determine the attenuation coefficient and phase velocity of Rayleigh waves. This investigation goes beyond mere calculations and examines particle motion to gain deeper insights into Rayleigh wave propagation. Furthermore, this investigates how kernel function and nonlocal parameters influence these wave phenomena.

Research limitations/implications

The results of this study reveal several unique cases that significantly contribute to the understanding of Rayleigh wave propagation within this intricate material system, particularly in the presence of voids.

Practical implications

This investigation provides valuable insights into the synergistic dynamics among piezoelectric constituents, void structures and Rayleigh wave propagation, enabling advancements in sensor technology, augmented energy harvesting methodologies and pioneering seismic monitoring approaches.

Originality/value

This study formulates a novel governing equation for a nonlocal piezo-thermo-elastic medium with voids, highlighting the significance of Rayleigh waves and investigating the impact of memory.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 4
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 18 October 2022

Vipin Gupta, Rajesh Kumar, Manjeet Kumar, Vijayata Pathania and M.S. Barak

This paper aims to study the variation of energy ratios of different reflected and transmitted waves by calculating the amplitude ratios.

Abstract

Purpose

This paper aims to study the variation of energy ratios of different reflected and transmitted waves by calculating the amplitude ratios.

Design/methodology/approach

This investigation studied the reflection and transmission of plane waves on an interface of nonlocal orthotropic piezothermoelastic space (NOPHS) and fluid half-space (FHS) in reference to dual-phase-lag theory under three different temperature models, namely, without-two-temperature, classical-two-temperature, and hyperbolic-two-temperature with memory-dependent derivatives (MDDs).

Findings

The primary (P) plane waves propagate through FHS and strike at the interface x3 = 0. The results are one wave reflected in FHS and four waves transmitted in NOPHS. It is noticed that these ratios are observed under the impact of nonlocal, dual-phase-lag (DPL), two-temperature and memory-dependent parameters and are displayed graphically. Some particular cases are also deduced, and the law of conservation of energy across the interface is justified.

Research limitations/implications

According to the available literature, there is no substantial research on the considered model incorporating NOPHS and FHS with hyperbolic two-temperature, DPL and memory.

Practical implications

The current model may be used in various fields, including earthquake engineering, nuclear reactors, high particle accelerators, aeronautics, soil dynamics and so on, where MDDs and conductive temperature play a significant role. Wave propagation in a fluid-piezothermoelastic media with different characteristics such as initial stress, magnetic field, porosity, temperature, etc., provides crucial information about the presence of new and modified waves, which is helpful in a variety of technical and geophysical situations. Experimental seismologists, new material designers and researchers may find this model valuable in revising earthquake estimates.

Social implications

The researchers may classify the material using the two-temperature parameter and the time-delay operator, where the parameter is a new indication of its capacity to transmit heat in interaction with various materials.

Originality/value

The submitted manuscript is original work done by the team of said authors and each author contributed equally to preparing this manuscript.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 9 February 2023

Vipin Gupta, Rajesh Kumar, Rajneesh Kumar and M.S. Barak

This paper aims to study the energy ratios of plane waves on an interface of nonlocal thermoelastic halfspace (NTS) and nonlocal orthotropic piezothermoelastic half-space (NOPS).

Abstract

Purpose

This paper aims to study the energy ratios of plane waves on an interface of nonlocal thermoelastic halfspace (NTS) and nonlocal orthotropic piezothermoelastic half-space (NOPS).

Design/methodology/approach

The memory-dependent derivatives (MDDs) approach with a hyperbolic two-temperature (HTT), three-phase lag theory is used here to study how the energy ratios change at the interface with the angle of incidence.

Findings

Plane waves that travel through NTS and hit the interface as a longitudinal wave, a thermal wave, or a transversal wave send four waves into the NOPS medium and three waves back into the NTS medium. The amplitude ratios of the different waves that are reflected and transmitted are used to calculate the energy ratios of the waves. It is observed that these ratios are affected by the HTT, nonlocal and MDD parameters.

Research limitations/implications

The energy ratios correspond to four distinct models; nonlocal HTT with memory, nonlocal HTT without memory, local HTT with memory and nonlocal classical-two-temperature with memory concerning the angle of incidence from 0 degree to 90 degree.

Practical implications

This model applies to several fields, including earthquake engineering, soil dynamics, high-energy particle physics, nuclear fusion, aeronautics and other fields where nonlocality, MDD and conductive temperature play an important role.

Originality/value

The authors produced the submitted document entirely on their initiative, with equal contributions from all of them.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 6
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 31 October 2018

Deepkamal Kaur Gill, Kartikeya Walia, Aditi Rawat, Divya Bajaj, Vipin Kumar Gupta, Anand Gupta, Mamta Juneja, Rakesh Tuli and Prashant Jindal

To relieve intracranial pressure and save patient inflicted with severe head injury, neurosurgeons restore cranial defects. These defects can be caused because of trauma or…

Abstract

Purpose

To relieve intracranial pressure and save patient inflicted with severe head injury, neurosurgeons restore cranial defects. These defects can be caused because of trauma or diseases (Osteomyelitis of bone) which are treated by cranioplasty, using the preserved bone of patient. In case of non-availability of bone, a cranial implant is generated using a biocompatible synthetic material, but this process is less accurate and time-consuming. Hence, this paper aims to present the use of rapid prototyping technology that allows the development of a more accurate patient-specific template and saves the surgery time.

Design/methodology/approach

A five-year-old girl patient having cranial defect was taken up for cranioplasty. CT (computed tomography) scans of the patient were used to generate 3D design of the implant suitable to conceal the defect on the left frontal portion using CAD/CAM (computer-aided design/ computer-aided manufacturing) software. The design was used for 3D printing to manufacture a base template, which was finally used to fabricate the actual implant using Simplex® P bone cement material to conceal the defect.

Findings

Surgery using Simplex® P implant was performed successfully on the patient, giving precise natural curvature to left frontal portion of the patient, decreasing surgery time by about 30 per cent.

Originality/value

The case demonstrates the development of a convenient, time-saving and aesthetically superior digital procedure to treat cranial defect in the absence of preserved bone flap using CT scan as input. 3D modelling and printing were deployed to produce an accurate template which was used to generate an implant using bone cement biocompatible material.

Details

Rapid Prototyping Journal, vol. 25 no. 2
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 23 July 2019

Vipin Gupta and Yi Zhang

Strategic fit is known to be an important antecedent to a firm’s performance, but there is little research explaining its influence on firm’s environmental performance. This paper…

Abstract

Purpose

Strategic fit is known to be an important antecedent to a firm’s performance, but there is little research explaining its influence on firm’s environmental performance. This paper aims to propose that strategic fit is likely to affect two firm-level outcomes: dynamic equilibrium and dynamic disequilibrium.

Design/methodology/approach

Prior debate has underlined the role of adaptation vs selection in achieving strategic fit, but we assert that firms vary in their strategic fit. This paper models inter-firm differentials in environmental performance, using survey data from a sample of Chinese small and medium enterprises.

Findings

Transformative leadership, operational agility and knowledge-based identity facilitate compensatory fit, while productivity growth, strategic adaptability and low product-market maturity enable strategic fit.

Theoretical implications

The authors show how low strategic fit may provide selection advantages via compensatory fit. Some firms do seek to achieve greater fit to the embedded contextual contingencies (dynamic equilibrium) at the cost of their energy. However, others respond to the expectations for green performance that are presently orthogonal to the embedded context to realize compensatory fit using the energy of the context (dynamic disequilibrium). This manifests as differential capabilities for adaptation vs selection.

Practical implications

The findings highlight how the firms may use cultural fit pathway for transcending the phenomenological tradeoffs between economic performance-oriented strategic fit and ecological performance-oriented compensatory fit.

Originality/value

This paper shows how low strategic fit may provide selection advantages via compensatory fit. Some firms do seek to achieve greater fit to the embedded contextual contingencies (dynamic equilibrium) at the cost of their energy. However, others respond to the expectations for green performance that are presently orthogonal to the embedded context, to realize compensatory fit using the energy of the context (dynamic disequilibrium). This manifests as differential capabilities for adaptation vs selection.

Objetivo

Es conocido que el ajuste estratégico es un antecedente importante del resultado de la empresa, pero existe poca investigación sobre su impacto en el resultado medioambiental. Proponemos que el ajuste estratégico es probable que influya sobre dos resultados organizativos: equilibrio dinámico y desequilibrio dinámico.

Diseño/metodología/aproximación

El debate previo ha señalado el papel de la adaptación frente a la selección a la hora de lograr el ajuste estratégico, pero sin embargo nosotros aseguramos que las empresas varían en su ajuste estratégico. Modelizamos las diferencias entre empresas en cuanto a su rendimiento medioambiental utilizando datos de una encuesta de empresas pequeñas y medianas empresas chinas.

Resultados

El liderazgo transformacional, agilidad operativa, e identidad basada en el conocimiento facilitan el ajuste compensatorio, mientras que el crecimiento de la productividad, la adaptabilidad estratégica y una baja madurez producto-mercado favorecen el ajuste estratégico.

Implicaciones teóricas

Mostramos como un bajo ajuste estratégico genera ventajas en la selección vía ajuste compensatorio. Algunas empresas buscan un mayor ajuste a las contingencias del entorno (equilibrio dinámico) a costa de su energía. Sin embargo, otras responden a las expectativas sobre rendimiento medioambiental para alcanzar un ajuste compensatorio utilizando la energía del contexto (desequilibrio dinámico). Esto se manifiesta en forma de capacidades distintas para la adaptación frente a la selección.

Implicaciones prácticas

Nuestros resultados subrayan como las empresas pueden usar el ajuste cultura para trascender los contrastes entre el ajuste estratégico orientado a los resultados económicos y el ajuste compensatorio orientado a los resultados medioambientales.

Originalidad/valor

La investigación resalta el reto de integrar las presiones para adaptarse a la lógica ecológica predominante en la industria y los imperativos basados en el valor que apoyan la selección del ecosistema social apropiado para los grupos de interés. Enfatiza que el factor decisivo que influye de manera decisiva en la capacidad de la empresa para manejar las contraprestaciones económicas y ecológicas es la orientación cultural a favor del bienestar de las personas. Mediante un modelo integrador de desarrollo económico y ecológico a nivel nacional una empresa puede reducir los costes derivados del hecho de que algunos países puedan favorecer los intereses económicos a costa de los medioambientales y generar externalidades negativas.

Palavras-chave Resultados medioambientales, Crecimiento de la productividad, Liderazgo transformacional, Agilidad operativa, Adaptabilidad estratégica, Madurez producto-mercado

Objetivo

O ajuste estratégico é conhecido por ser um importante antecedente do desempenho da empresa, mas há poucas pesquisas explicando sua influência no desempenho ambiental da empresa. Propomos que o ajuste estratégico provavelmente influenciará dois resultados no nível da empresa: equilíbrio dinâmico e desequilíbrio dinâmico.

Design/metodologia/abordagem

O debate prévio destacou o papel da adaptação versus seleção na obtenção de adequação estratégica, mas afirmamos que as empresas variam em sua adequação estratégica. Nós modelamos diferenciais entre firmas no desempenho ambiental, usando dados de pesquisa de uma amostra de pequenas e médias empresas chinesas.

Resultados

A liderança transformadora, a agilidade operacional e a identidade baseada em conhecimento facilitam o ajuste compensatório, enquanto o crescimento da produtividade, a adaptabilidade estratégica e a baixa maturidade do mercado de produtos permitem um ajuste estratégico.

Implicações Teóricas

Mostramos como o ajuste estratégico baixo pode fornecer vantagens de seleção via ajuste compensatório. Algumas firmas buscam obter maior adequação às contingências contextuais embutidas (equilíbrio dinâmico) ao custo de sua energia. No entanto, outros respondem às expectativas de desempenho verde que atualmente são ortogonais ao contexto embutido, para realizar o ajuste compensatório utilizando a energia do contexto (desequilíbrio dinâmico). Isso se manifesta como capacidades diferenciais de adaptação versus seleção.

Implicações práticas

Nossas descobertas destacam como as empresas podem usar o caminho da adaptação cultural para transcender as compensações fenomenológicas entre o ajuste estratégico orientado para o desempenho econômico e o ajuste compensatório voltado para o desempenho ecológico.

Originalidade/valor

A pesquisa destaca os desafios da cultura de trabalho de integrar as pressões para se adaptar à predominante ecologia industrial versus o imperativo dominante baseado em valores para selecionar o ecossistema social apropriado dos interessados. Isso enfatiza que o fator decisivo na capacidade formativa de uma empresa para promover compromissos econômicos e ecológicos é a orientação cultural para o bem-estar humano em uma plataforma nacional. Ao programar um modelo integrativo de desenvolvimento econômico e ecológico em nível nacional, uma empresa pode auto mitigar os custos da economia política internacional que surgem quando algumas nações trocam o bem-estar ecológico em prol de interesses econômicos e geram externalidades negativas.

Palavras-chave Palavras-chave Desempenho ambiental, Crescimento de produtividade, Liderança transformacional, Agilidade operacional, Adaptabilidade estratégica, Maturidade do Produto-Mercado

Details

Management Research: Journal of the Iberoamerican Academy of Management, vol. 17 no. 2
Type: Research Article
ISSN: 1536-5433

Keywords

1 – 10 of 75