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1 – 9 of 9An electrochemical polarisation technique was employed to measure the porosity of electroless nickel (EN) coating. The technique is based on the change observed in the…
Abstract
An electrochemical polarisation technique was employed to measure the porosity of electroless nickel (EN) coating. The technique is based on the change observed in the electrochemical parameters with varying cathode and/or anode area on a bimetallic corroding surface. The nickel coating test samples were obtained from a hypophosphite plating bath in the presence of different complexing agents. This technique was used to estimate the effect of coating thickness on porosity and the influence of addition of different complexing agents to EN baths on porosity. The results suggest that, unlike other conventional methods, the electrochemical, a non‐destructive method, can detect the smallest pore in an EN‐coating and quantify its size in terms of pore area fraction.
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Yograj Singh Duksh, Brajesh Kumar Kaushik, Sankar Sarkar and Raghuvir Singh
The purpose of this paper is to analyze the effect of driver size and number of shells on propagation delay and power for multi‐walled carbon nanotubes (MWCNT) interconnects at…
Abstract
Purpose
The purpose of this paper is to analyze the effect of driver size and number of shells on propagation delay and power for multi‐walled carbon nanotubes (MWCNT) interconnects at 22 nm technology node.
Design/methodology/approach
An equivalent circuit model of MWCNT is used for estimation and analysis of propagation delay and power. The delay and power through MWCNT and Cu interconnects are compared for various driver sizes and number of MWCNT shells.
Findings
The SPICE simulation results show that the MWCNT interconnect has lower propagation delay than Cu interconnects. The delay ratio of MWCNT to Cu decreases with increase in length for different driver size and number of MWCNT shells. However, the delay ratio increases with reduction in number of MWCNT shells. The ratio of average power consumption (MWCNT/Cu) also decreases with the variation in driver size and numbers of shells with respect to the length of interconnect. The theoretical study proves CNTs to be better alternatives against copper on the ground of performance parameters.
Research limitations/implications
Several challenges remain to be overcome in the areas of fabrication and process integration for CNTs. Lowering of metal nanotube contact resistance would be vital, especially for local interconnect and via applications. Moreover, rigorous characterization and modeling of electromagnetic interactions in CNT bundles; 3‐D (metal) to 1‐D (CNT) contact resistance; impact of defects on electrical and thermal properties; and high‐frequency effects are being seen as additional challenges.
Originality/value
This paper investigates, assesses and compares the performance of carbon nanotubes (CNT) based interconnects as prospective alternatives to copper wire interconnects in future VLSI chips. Multi walled CNTs assure for long/global interconnect applications.
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Yograj Singh Duksh, Brajesh Kumar Kaushik, Sankar Sarkar and Raghuvir Singh
The purpose of this paper is to explore and evaluate the performance comparison of carbon nanotubes (CNT) and nickel silicide (NiSi) nanowires interconnects as prospective…
Abstract
Purpose
The purpose of this paper is to explore and evaluate the performance comparison of carbon nanotubes (CNT) and nickel silicide (NiSi) nanowires interconnects as prospective alternatives to copper wire interconnects.
Design/methodology/approach
The increasing resistivity of the copper wire with scaling and rising demands on current density drives the need for identifying new wiring solutions. This paper explores the various alternatives to copper. The metallic bundle CNTs and NiSi nanowires are promising candidates that can potentially address the challenges faced by copper. This paper analyzes various electrical models of carbon nanotube and recently introduced novel interconnect solution using NiSi nanowires.
Findings
The theoretical studies proves CNTs and NiSi nanowires to be better alternatives against copper on the ground of performance parameters, such as effective current density, delay and power consumption. NiSi nanowire provides highest propagation speed for short wire length, and copper is the best for intermediate wire length, while bundle CNTs is faster for long wire length. NiSi nanowire has lowest power consumption than copper and CNTs.
Originality/value
This paper investigates, assess and compares the performance of carbon nanotubes (CNT) and NiSi nanowires interconnects as prospective alternatives to copper wire interconnects in future VLSI chips.
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Arti Sharma, Sushanta K. Mishra, Arunava Ghosh and Tuhin Sengupta
The learning outcomes are as follows: to understand the cultural and ethical dimensions revolving around the issue of female feticide; to apply the lens of institutional theory…
Abstract
Learning outcomes
The learning outcomes are as follows: to understand the cultural and ethical dimensions revolving around the issue of female feticide; to apply the lens of institutional theory with respective change management measures; and to analyze and evaluate the impact of such intervention programs such as Beti Bachao Beti Padhao in the context of emerging economies such as India.
Case overview/synopsis
This case attempts to highlight the innovative and effective governance approach by the Government of Rajasthan (India) and, in particular, the State Health Assurance Agency to curb the menace of female feticide and the rising cases of abortion and sex determination in an attempt to favor a male child. The case concentrates on mainly three dimensions of Indian societal ecosystem, namely, the grave concern of preference of male child over female child leading to widespread cases of female feticide in different states in India with specific focus on the state of Rajasthan; the role of cultural dimension which primarily drives such preferential treatment in rural and urban areas in India; and the importance of using effective policy measures in monitoring various activities, introduction of incentive schemes to patients for preventing sex determination and promoting the birth of female child.
Complexity academic level
This case can be used as a teaching material in the Public Policy course – Social Welfare and Health Policy, Policy interventions, organization theory and change management at the Graduate/MBA level.
Supplementary materials
Teaching notes are available for educators only.
Subject code
CSS 10: Public Sector Management.
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This study aims to identify the underlying dimensions of hospitality organizational climate and then measure the influence of it on employee turnover tendency.
Abstract
Purpose
This study aims to identify the underlying dimensions of hospitality organizational climate and then measure the influence of it on employee turnover tendency.
Design/methodology/approach
Data were obtained from 504 employees across 18 upscale hotels in India. Factor analysis was adopted to identify the organizational climate dimensions and its influence on turnover tendency was measured by SEM. One-way ANOVA tested the hypothesis related to the perceived differences among the employees regarding turnover intention.
Findings
Result supports the hypothesized relationship between the constructs that the identified organizational climate structure have strong inverse relationship with employee turnover tendency and its dimension “leaders facilitation and support” was found to influence turnover intention the most, followed by “cohesion, clarity and objectivity of system,” “esprit of profession, organization and workgroup” and “job challenge, variety and feedback.” Results also determined differences among the hotel employees of different job levels and gender regarding turnover tendency.
Practical implications
Study reveals that employee turnover tendency is predominantly influenced by the identified factors of organizational climate and more among the male frontline employees and attrition reduces with age and position. This knowledge will help the hotel's management in designing strategic HRM to control attrition.
Originality/value
This study is the first to establish an organizational climate measure of hotel industry in India and opens scope for future research. It also draws attention to the relationship of organizational climate with turnover tendency.
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The purpose of this paper is to examine the meaning, in both local and international context, of the Kochi-Muziris Biennale (KMB), the first international exhibit of contemporary…
Abstract
Purpose
The purpose of this paper is to examine the meaning, in both local and international context, of the Kochi-Muziris Biennale (KMB), the first international exhibit of contemporary art in India. Kochi Biennale Foundation (KBF), which administers the KMB, identifies art as a means for transforming society, with a mission to bring global contemporary art to India and to present India’s modern art to the world. The authors further investigate the role of government sponsorship and corporate patronage in funding the KMB, and investigate how resistance through art is key to the KMB’s identity.
Design/methodology/approach
This study focuses primarily on published materials relating to the KMB. One of the authors attended the 2016 KMB and interviewed fellow attendees. Additionally, the authors reviewed and assessed social media postings regarding the 2016 KMB.
Findings
The authors argue that government sponsorship and corporate patronage are never solely about political or financial power. Rather, a generalized reciprocity among the three entities – corporations, the government and the artists – allows the KMB to flourish. For the artists involved, the KMB, co-founded by activist artists, sustains interest in and awareness of resistance.
Originality/value
Extant literature on biennales is sparse on ways in which these exhibits extend their impact beyond the art world. The authors examine issues such as India expanding its position on the world stage through art, and the implications of political resistance embraced by Indian artists on future directions for the KMB, that have heretofore been unaddressed.
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Satish Shenoy and Raghuvir Pai
The paper aims to devise an externally adjustable fluid film bearing whereby the hydrodynamic conditions can be changed as required in a controlled manner. Unlike a tilting pad…
Abstract
Purpose
The paper aims to devise an externally adjustable fluid film bearing whereby the hydrodynamic conditions can be changed as required in a controlled manner. Unlike a tilting pad bearing, in this bearing film thickness can be varied by providing radial and tilt adjustments to the pad, irrespective of the operating conditions. This variation in film thickness in‐turn varies the stiffness and damping coefficients.
Design/methodology/approach
The stability characteristics of a centrally loaded 120° single pad externally adjustable fluid film bearing is studied theoretically. The bearing has an aspect ratio of one and operates over a wide range of eccentricity ratios and adjustments. The time dependent form of Reynolds equation in two dimensions is solved numerically using the finite difference method. Dynamic performance characteristics of the bearing are in terms of film stiffness and damping coefficients, critical mass of the journal and the whirl frequency ratio. Stability is determined using a first‐order‐linear‐perturbation method.
Findings
The paper finds that a study with various adjustments predicts that negative radial and negative tilt adjustment configuration results in superior dynamic characteristics as compared to a conventional fluid film bearing.
Originality/value
It is possible to have a particular set of radial and tilt adjustments that will provide a stable operation of the rotor bearing system. Single pad externally adjustable fluid film bearing will perform as a conventional partial arc bearing when both the adjustments are set to zero.
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G. Raghuram and Prashanth D. Udayakumar
GMR Infrastructure Limited (GMRIL) had to make a decision on its continued role in the 555.48 km Kishangarh Udaipur Ahmedabad (KUA) Expressway Project, India's then longest road…
Abstract
GMR Infrastructure Limited (GMRIL) had to make a decision on its continued role in the 555.48 km Kishangarh Udaipur Ahmedabad (KUA) Expressway Project, India's then longest road public-private partnership (PPP) project. GMR had terminated the contract citing NHAI's failure in fulfilling Conditions Precedent (CP) of providing (i) environment clearance (EC), (ii) revised toll free notification and (iii) 80% of required land. The case intends to educate the reader on the concessionaire-authority dynamics in typical Indian infrastructure PPPs. Taking into account its internal strategy, the extant unfavourable investment climate, the Central Government's steps to revive private interest in the highways sector and NHAI's quick turnaround in fulfilling CP, GMR had to decide how to respond.
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