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Article
Publication date: 28 October 2019

Rajesh Kumar Bhushan and Deepak Sharma

Sound microstructure components are necessary for reliability and safety; hence, these components are used in aircraft, satellite, automobiles and ships, where many…

Abstract

Purpose

Sound microstructure components are necessary for reliability and safety; hence, these components are used in aircraft, satellite, automobiles and ships, where many commercial alloys are not suitable. The paper aims to discuss this issue.

Design/methodology/approach

AA6082/Si3N4 and AA6082/SiC composites were fabricated using the stir-casting process considering 5, 10 and 15 vol.% of reinforcement particles. Density and porosity of AA6082/Si3N4 and AA6082/SiC composites were calculated. Characterization was done using an X-ray (EDX) detector, attached to SEM. The effect of addition of Si3N4 and SiC particulates in the AA6082 was investigated.

Findings

Results showed that Si3N4 and SiC particulates had good wettability with AA6082 and were uniformly distributed in AA6082 matrix. No adverse effects of reactions were noticed in the microstructure of AA6082/Si3N4 and AA6082/SiC composites.

Research limitations/implications

AA6082 with more than 15 vol.% of Si3N4 and AA6082/SiC reinforcement particles do not find industrial application where high hardness and tensile strength are required.

Practical implications

Components made from AA6082/Si3N4 and AA6082/SiC composites find their application where high hardness with better tensile strength is required.

Social implications

Naturally and locally available materials are utilized for fabrication.

Originality/value

Little work is available in the literature on fabrication and characterization of AA6082/Si3N4 and AA6082/SiC composites. The authors have identified the process parameters at which proper fabrication is done and sound microstructure is obtained.

Details

International Journal of Structural Integrity, vol. 11 no. 2
Type: Research Article
ISSN: 1757-9864

Keywords

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Article
Publication date: 4 July 2008

Eric G. Olson and Deepak Sharma

The purpose of this paper is to show that some of the critical questions that top executives from electronics companies ask are not unique to their industry and, in fact

Abstract

Purpose

The purpose of this paper is to show that some of the critical questions that top executives from electronics companies ask are not unique to their industry and, in fact, are the same ones that confront executives across a variety of industries and virtually all company sizes. Questions that address issues of product complexity and the breadth of product offerings, how to respond to competitive forces, and how to meet the challenges that come from shortened product lifecycles and shrinking the time it takes for products to ultimately reach the marketplace are all relevant across multiple industries. Still, the electronics industry is one that is experiencing an especially unprecedented degree of change spurred by the increasing complexity of end products, higher competitive intensity, and shorter time to commoditization.

Design/methodology/approach

The article provides the methodology and tool set needed to develop and assess a product portfolio map, determine changes needed to marketing and sales focus as well as future actions to take in order to sustain higher profitability and return on investments. It includes: definition of the key dimensions and characteristics of the six key zones for product, sales, and marketing; summary of product, marketing and sales focus by zone; key challenges and actions that an organization can undertake for each zone; and methodology to apply the framework and develop an actionable transformation roadmap. This answers key questions such as: Does the current coverage align with existing core competencies? Which zone has the most profitable products? If playing in every zone which business should be divested? If there is heavy emphasis on one zone what does it mean for M&A strategy? Where do the top 100 customers map in the framework? What looking at product and technology roadmap going forward, which zones do we start entering?

Findings

This article provides a framework that enables businesses to ascertain their current state and identify actions appropriate to achieve a desired future state. It provides insights that lead to an actionable transformation plan.

Originality/value

Most companies in the electronics industry are executing multiple strategies based on acquisitions, sales transformations, new product introductions, and cost cutting measures to deal with the situation. However, the success rate of these strategies leaves significant room for improvement at many companies. So what is the answer? As is often the case when many variables need to be considered simultaneously and the competitive environment is complex such as this, it is important to establish a structured way to approach the challenges at hand. In this case, the key elements to consider are the customer experience, the product portfolios, and sales and marketing competencies. Achieving the right level of interaction and focus among these elements is critical to achieving success. This article provides a new and insightful framework to enable a structured analysis of the multi‐variable system.

Details

Journal of Business Strategy, vol. 29 no. 4
Type: Research Article
ISSN: 0275-6668

Keywords

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Article
Publication date: 27 June 2008

Hans‐Holger Rogner, Deepak Sharma and Ahmed Irej Jalal

In recognition of the urgency of the global need to reduce CO2 emissions from the electricity sector, the purpose of this paper is to analyze the cost‐effectiveness of…

Abstract

Purpose

In recognition of the urgency of the global need to reduce CO2 emissions from the electricity sector, the purpose of this paper is to analyze the cost‐effectiveness of nuclear power and fossil‐fuel‐based power with and without the provision of carbon capture and storage in select, yet environmentally‐significant, group of countries – China, India, Russia, Korea, Pakistan, Poland, Argentina, Bulgaria and Romania.

Design/methodology/approach

The analyses are based on comparisons of electricity generation costs for nuclear and fossil‐fuel technologies. These costs, expressed in present value terms, are estimated on the basis of life‐cycle costs, employing detailed country‐specific technological and economic data and assumptions.

Findings

The analyses suggest that that the provision of carbon capture and storage is likely to result in a significant increase in the cost of electricity produced from fossil fuels (principally coal) in all countries represented in this paper. Such increase would completely erode the existing cost advantage enjoyed by fossil‐fuel power (in relation to nuclear power) in some countries (Argentina, Bulgaria, China, and India) and considerably enhance the existing cost‐advantage of nuclear power in other countries (Korea, Pakistan, Poland, Romania, and Russia).

Originality/value

Notwithstanding these limitations, the findings of this paper contribute appreciably to the emerging knowledge on this topic and provide useful foresight into the likely challenges of developing internationally acceptable policy prescriptions for mitigation CO2 emissions from the electricity sector. At a mundane, yet important, level, this paper establishes a platform on which further analyses could be built.

Details

International Journal of Energy Sector Management, vol. 2 no. 2
Type: Research Article
ISSN: 1750-6220

Keywords

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Article
Publication date: 2 November 2015

Desh Deepak Sharma and S.N. Singh

This paper aims to detect abnormal energy uses which relate to undetected consumption, thefts, measurement errors, etc. The detection of irregular power consumption, with…

Abstract

Purpose

This paper aims to detect abnormal energy uses which relate to undetected consumption, thefts, measurement errors, etc. The detection of irregular power consumption, with variation in irregularities, helps the electric utilities in planning and making strategies to transfer reliable and efficient electricity from generators to the end-users. Abnormal peak load demand is a kind of aberration that needs to be detected.

Design/methodology/approach

This paper proposes a Density-Based Micro Spatial Clustering of Applications with Noise (DBMSCAN) clustering algorithm, which is implemented for identification of ranked irregular electricity consumption and occurrence of peak and valley loads. In the proposed algorithm, two parameters, a and ß, are introduced, and, on tuning of these parameters, after setting of global parameters, a varied number of micro-clusters and ranked irregular consumptions, respectively, are obtained. An approach is incorporated with the introduction of a new term Irregularity Variance in the suggested algorithm to find variation in the irregular consumptions according to anomalous behaviors.

Findings

No set of global parameters in DBSCAN is found in clustering of load pattern data of a practical system as the data. The proposed DBMSCAN approach finds clustering results and ranked irregular consumption such as different types of abnormal peak demands, sudden change in the demand, nearly zero demand, etc. with computational ease without any iterative control method.

Originality/value

The DBMSCAN can be applied on any data set to find ranked outliers. It is an unsupervised approach of clustering technique to find the clustering results and ranked irregular consumptions while focusing on the analysis of and variations in anomalous behaviors in electricity consumption.

Details

International Journal of Energy Sector Management, vol. 9 no. 4
Type: Research Article
ISSN: 1750-6220

Keywords

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Article
Publication date: 22 November 2011

Supannika Wattana and Deepak Sharma

In the early 1990s, the Thai government initiated a process of reform of the electricity industry with the argument that such reform would improve the performance of the…

Abstract

Purpose

In the early 1990s, the Thai government initiated a process of reform of the electricity industry with the argument that such reform would improve the performance of the industry and contribute to enhancing the overall economic prosperity. The purpose of this paper is to examine the veracity of this argument by analysing both the technical and environmental performance of the Thai electricity industry.

Design/methodology/approach

A data envelopment analysis‐based methodology is employed in this study to measure the productivity of the Thai electricity industry, for the period 1980‐2006. This method enables the decomposition of productivity changes into technical and efficiency changes, and hence enables one to determine if changes in productivity are due to electricity reform (efficiency gains) or due to autonomous technological improvements.

Findings

The study reveals that the increase in the productivity of the Thai electricity industry over the period 1980‐2006 was mainly driven by technological improvements and that industry reform has had insignificant impact on productivity. Further, the impacts of electricity reform on the environment appear to be relatively modest – this too was driven by government regulation that supports the use of less environmentally detrimental fuels for electricity generation by the private producers, rather than electricity reform.

Originality/value

The analysis in this paper contributes to the literature on productivity and efficiency, by applying the DEA method to a time series data for a single industry. Additionally, the analysis of environmental performance of the Thai electricity industry – to the best of knowledge of the authors – is the first of its kind for the Thai electricity industry.

Details

International Journal of Energy Sector Management, vol. 5 no. 4
Type: Research Article
ISSN: 1750-6220

Keywords

Content available
Article
Publication date: 21 February 2018

Abstract

Details

Multidiscipline Modeling in Materials and Structures, vol. 14 no. 1
Type: Research Article
ISSN: 1573-6105

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Case study
Publication date: 2 January 2018

Richa Agarwal and Sumedha Tuteja

Paytm has become a popular method to make cashless payments in India. Be it for transferring funds through mobile numbers, online payment of utility bills, cabs, etc. or…

Abstract

Synopsis

Paytm has become a popular method to make cashless payments in India. Be it for transferring funds through mobile numbers, online payment of utility bills, cabs, etc. or payment to offline merchants. This case elaborates on the position Paytm has attained in the market thus far and its ambitious future growth plans. It describes the strategies being adopted by Paytm’s competitors and the new developments in the payments business in India. The case finally narrates the challenges the Fintech firm faces at present and poses a pertinent question: is Paytm on a growth trajectory or committing suicide by leaping so fast?

Research methodology

The case collates secondary data pertaining to Paytm’s current position and recent developments in the Indian mobile wallet industry. It presents the facts and data published on websites, newspapers, and magazines in the form of a case study.

Relevant courses and levels

This case can be applied to strategic management at under graduate and introductory level in post-graduate marketing of digital products.

Details

The CASE Journal, vol. 14 no. 1
Type: Case Study
ISSN: 1544-9106

Keywords

Content available
Article
Publication date: 22 November 2011

Abstract

Details

International Journal of Energy Sector Management, vol. 5 no. 4
Type: Research Article
ISSN: 1750-6220

Content available
Article
Publication date: 21 September 2010

Brian Roberts

Abstract

Details

International Journal of Educational Management, vol. 24 no. 7
Type: Research Article
ISSN: 0951-354X

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Article
Publication date: 25 October 2011

Madhuri Tikam

The purpose of this paper is to analyse the outcomes of the Library Volunteerism Program of student volunteers in a college library of Mumbai.

Abstract

Purpose

The purpose of this paper is to analyse the outcomes of the Library Volunteerism Program of student volunteers in a college library of Mumbai.

Design/methodology/approach

The survey and interview method was used to collate the achieved outcomes and expectations of 112 student volunteers who participated in the Library Volunteerism Program.

Findings

The Library Volunteerism Program strengthened the library‐student bond. Though the student volunteers felt satisfied about making an important contribution to the organisation, they rarely found it personally fulfilling. The volunteers expected more substantial outcomes and flexibility from the Library Volunteerism Program.

Practical implications

The study found that making the volunteerism experience more exciting, challenging and beneficial to the volunteers is essential for developing a long‐lasting and mutually beneficial relationship between the volunteers and the library. The suggested guidelines should allow similar libraries to design an effective library volunteerism program.

Originality/value

This is the first paper which discusses library volunteerism outcomes in the college libraries of India.

Details

Library Management, vol. 32 no. 8/9
Type: Research Article
ISSN: 0143-5124

Keywords

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