Pankaj Raj Sinha, Larry E. Whitman and Don Malzahn
Supply chain design is frequently performed from the perspective of a single supplier‐customer relationship. However, as a supplier provides value to different supply chains, it…
Abstract
Supply chain design is frequently performed from the perspective of a single supplier‐customer relationship. However, as a supplier provides value to different supply chains, it becomes increasingly difficult to optimize each supply chain. Each supply chain has different requirements, procedures, and formats. A member may have requirements placed upon them by one member that contradicts another member. The competitive success of a supplier depends on its ability to participate in different supply chains. This, in turn, affects the competitiveness of each of the other supply chains. This paper presents a generic prescriptive methodology for mitigating risks in an aerospace supply chain and proposes five activities. The methodology provides a mechanism to minimize conflicting objectives. A hypothetical case study is then presented on how the methodology can be applied.
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Tushar Sonar, Visvalingam Balasubramanian, Sudersanan Malarvizhi, Thiruvenkatam Venkateswaran and Dhenuvakonda Sivakumar
The primary objective of this investigation is to optimize the constricted arc tungsten inert gas (CA-TIG) welding parameters specifically welding current (WC), arc constriction…
Abstract
Purpose
The primary objective of this investigation is to optimize the constricted arc tungsten inert gas (CA-TIG) welding parameters specifically welding current (WC), arc constriction current (ACC), ACC frequency (ACCF) and CA traverse speed to maximize the tensile properties of thin Inconel 718 sheets (2 mm thick) using a statistical technique of response surface methodology and desirability function for gas turbine engine applications.
Design/methodology/approach
The four factor – five level central composite design (4 × 5 – CCD) matrix pertaining to the minimum number of experiments was chosen in this investigation for designing the experimental matrix. The techniques of numerical and graphical optimization were used to find the optimal conditions of CA-TIG welding parameters.
Findings
The thin sheets of Inconel 718 (2 mm thick) can be welded successfully using CA-TIG welding process without any defects. The joints welded using optimized conditions of CA-TIG welding parameters showed maximum of 99.20%, 94.45% and 73.5% of base metal tensile strength, yield strength and elongation.
Originality/value
The joints made using optimized CA-TIG welding parameters disclosed 99.20% joint efficiency which is comparatively 20%–30% superior than conventional TIG welding process and comparable to costly electron beam welding and laser beam welding processes. The parametric mathematical equations were designed to predict the tensile properties of Inconel 718 joints accurately with a confidence level of 95% and less than 4.5% error. The mathematical relationships were also developed to predict the tensile properties of joints from the grain size (secondary dendritic arm spacing-SDAS) of fusion zone microstructure.
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Michael Knoll, Anindo Bhattacharjee and Wim Vandekerckhove
This paper aims to explore how the context in a dynamically developing country affects employee silence in India.
Abstract
Purpose
This paper aims to explore how the context in a dynamically developing country affects employee silence in India.
Design/methodology/approach
Qualitative design involving semi-structured interviews with employees and managers from different sectors in the Mumbai and Delhi areas. An abductive approach was used to analyze the data.
Findings
Two types of social mobility concerns – advancement aspiration and fear of social decline – emerged as salient drivers of silence and can be attributed to a volatile job market, social status markers, transferability of qualification, someone’s socio-economic situation and the overall economic situation. Pathways were specified from social mobility concerns to silence tendencies that are motivated by both low approach and high avoidance.
Research limitations/implications
Social mobility as a specific factor in the Indian distal context and as a characteristic of emerging markets can motivate silence while organization-related concepts like job satisfaction or commitment may have less predictive value. Propositions that were derived from the interview study need to be validated by deductive research. Generalizability of Indian findings across other emergent markets needs to be shown.
Originality/value
To the organizational behavior (OB) scholarship on silence, this research contributes by identifying antecedents of silence that are situated beyond the organizational boundaries challenging the dominant role of established factors at the team- and organizational level. To the human resource management/employment relations (HRM/ER) scholarship, this research contributes by theorizing psychological processes that link environmental factors to silence behaviors.
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Poverty, business strategy and sustainable development. International development planning and poverty alleviation strategies have moved beyond centralised, top-down approaches…
Abstract
Theoretical basis
Poverty, business strategy and sustainable development. International development planning and poverty alleviation strategies have moved beyond centralised, top-down approaches and now emphasise decentralised, community-based approaches that incorporate actors from the community, government, non-governmental agencies and business. Collective action by Bottom of the Pyramid residents gives them greater control in self-managing environmental commons and addressing the problems of environmental degradation. Co-creation and engaging in deep dialogue with stakeholders offer significant potential for launching new businesses and generating mutual value. The case study rests on the tenets of corporate social responsibility. It serves as an example of corporate best practices towards ensuring environmental sustainability and community engagement for providing livelihood support and well-being. It illustrates the tool kit for building community-based adaptive capacities against climate change.
Research methodology
The field-based case study was prepared from inputs received from detailed interviews of company functionaries. Company documents were shared by the company and used with their permission. Secondary data was accessed from newspapers, journal articles available online and information from the company website.
Case overview/synopsis
The case study is about the coming together of several vital agencies working in forest and wildlife conservation, climate change adaptation planning for ecosystems and communities, social upliftment and corporate social responsibility in the Kanha Pench landscape of Madhya Pradesh in Central India. The case traces several challenges. First, the landscape is degrading rapidly; it requires urgent intervention to revive it. Second, the human inhabitants are strained with debilitating poverty. Third, the long-term sustainability of the species of tigers living in the protected tiger reserves of Kanha and Pench needs attention as human-animal conflicts rise.
Complexity academic level
The case would help undergraduate and postgraduate students studying sustainability and corporate social responsibility.