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Article
Publication date: 7 February 2020

Dynamic testing resource allocation modeling for multi-release software using optimal control theory and genetic algorithm

Vijay Kumar and Ramita Sahni

The use of software is overpowering our modern society. Advancement in technology is directly proportional to an increase in user demand which further leads to an increase…

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Abstract

Purpose

The use of software is overpowering our modern society. Advancement in technology is directly proportional to an increase in user demand which further leads to an increase in the burden on software firms to develop high-quality and reliable software. To meet the demands, software firms need to upgrade existing versions. The upgrade process of software may lead to additional faults in successive versions of the software. The faults that remain undetected in the previous version are passed on to the new release. As this process is complicated and time-consuming, it is important for firms to allocate resources optimally during the testing phase of software development life cycle (SDLC). Resource allocation task becomes more challenging when the testing is carried out in a dynamic nature.

Design/methodology/approach

The model presented in this paper explains the methodology to estimate the testing efforts in a dynamic environment with the assumption that debugging cost corresponding to each release follows learning curve phenomenon. We have used optimal control theoretic approach to find the optimal policies and genetic algorithm to estimate the testing effort. Further, numerical illustration has been given to validate the applicability of the proposed model using a real-life software failure data set.

Findings

The paper yields several substantive insights for software managers. The study shows that estimated testing efforts as well as the faults detected for both the releases are closer to the real data set.

Originality /value

We have proposed a dynamic resource allocation model for multirelease of software with the objective to minimize the total testing cost using the flexible software reliability growth model (SRGM).

Details

International Journal of Quality & Reliability Management, vol. 37 no. 6/7
Type: Research Article
DOI: https://doi.org/10.1108/IJQRM-09-2019-0296
ISSN: 0265-671X

Keywords

  • Testing phase
  • Resource allocation
  • Multirelease
  • Optimal control theory
  • Genetic algorithm

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Article
Publication date: 9 July 2018

Development of a custom zygomatic implant using metal sintering

Vijay Kumar Meena, Gagandeep , Aneesh , Vidya Rattan, Gaurav Luthra and Parveen Kalra

The purpose of this paper is to design and development of a patient-specific implant for zygomatic area of a patient suffering from mucormycosis (fungal infection). The…

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Abstract

Purpose

The purpose of this paper is to design and development of a patient-specific implant for zygomatic area of a patient suffering from mucormycosis (fungal infection). The paper describes how integration of computer-aided design (CAD) and 3D printing can be successfully used for developing custom implants for the sites for which readymade optimal solutions are not available.

Design/methodology/approach

The CT scan data of the patient were used for the generation of a 3D model. The healthy side of skull was mirrored and copied on the infected part, which served as a base for designing the implant. The prototype of the implant was printed using fused deposition modelling before finally printing in Ti6Al4V alloy using direct metal laser sintering process.

Findings

The custom designed implant fitted well to the patient’s skull during surgery. Proper facial aesthetics were maintained post-surgery.

Originality/value

The work describes the application of CAD-based image processing software and additive manufacturing in the development of a custom implant for the sites for which no readymade optimal solution is available.

Details

Rapid Prototyping Journal, vol. 24 no. 5
Type: Research Article
DOI: https://doi.org/10.1108/RPJ-01-2017-0003
ISSN: 1355-2546

Keywords

  • Custom implant
  • Sintering
  • Patient-specific implant
  • Zygomatic

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Article
Publication date: 11 November 2020

Effect of friction stir process parameters on tensile strength of eggshell and SiC-reinforced aluminium-based composite

Anas Islam, Shashi Prakash Dwivedi and Vijay Kumar Dwivedi

This study aims to minimize pollution and enhance the mechanical properties of SiC- reinforced aluminum- based composite by utilizing waste eggshell. Pollution is…

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Abstract

Purpose

This study aims to minimize pollution and enhance the mechanical properties of SiC- reinforced aluminum- based composite by utilizing waste eggshell. Pollution is increasing at an exponential rate across the globe. Every nation is struggling to have strong control over the rise in pollution. Many countries are even successful in this regard, but only up to a certain extent; also, a lot of capital investment is required just to make arrangements for making and taking care of dedicated dump yards. An alternative approach in this regard could be using the unwanted wastes in some constructive works by recycling them. Novel strategies and dedicated cells for the research and development regarding the recycling of various kinds of wastes are continuously being developed by various nations.

Design/methodology/approach

This study attempts to make a hybrid composite of AA6101 alloy through the friction stir process (FSP) technique in which waste eggshells and SiC have been used as reinforcement particles. As the densities of eggshells, SiC show different values of densities to make them a single entity, they were subjected to ball milling for around 75 h. After ball milling, the reinforcement particles (eggshells and SiC) were distributed uniformly in the metal matrix (Al), and they appear as a single entity in the metal matrix composite.

Findings

The main objective of this study is to obtain an enhanced value of tensile strength of the final composite. Concerning this, the parameters of FSP, i.e. rotational speed and transverse speed, have been optimized through the Box–Behnken design approach. The optimized values of FSP parameters came out to be as 935.92 rpm of rotational speed and 22.48 mm/min as transverse speed value.

Originality/value

The results showed that the tensile strength and hardness of the composite developed at an optimum combination of FSP parameters enhanced by about 47.14 and 45.45%, respectively.

Details

World Journal of Engineering, vol. 18 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/WJE-08-2020-0387
ISSN: 1708-5284

Keywords

  • FSP
  • Ball milling
  • Box–Behnken design
  • Eggshell
  • SiC

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Article
Publication date: 8 October 2018

Holacracy – the future of organizing? The case of Zappos

Vijay Kumar S. and Subhasree Mukherjee

The purpose of this paper is to explore how and when holacracy works for organizations.

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Abstract

Purpose

The purpose of this paper is to explore how and when holacracy works for organizations.

Design/methodology/approach

The paper illustrates the idea by drawing insights from the case of Zappos and Gidley’s framework of future organizations.

Findings

The paper provides a balanced view on holacracy and how it can be beneficial for organizations. The potential of holarchical structures will be fruitful only if the structure-culture fit is achieved. The paper also highlights the lessons learned from previous implementations of holacracy and concludes with possible solutions for organizations.

Practical implications

The structure-culture fit is still a pertinent question especially when organizations are growing in size. Organizations need to address the intergenerational differences and core tenets of organizational culture while adopting flat structures to promote flexibility and individualization. New ideas and ways of organizing are therefore best treated as experiments guided by strategic vision and a defined direction.

Originality/value

The paper extends the existing knowledge on holacracy by applying Gidley’s framework and providing practical insights for practitioners in implementing holacracy.

Details

Human Resource Management International Digest, vol. 26 no. 7
Type: Research Article
DOI: https://doi.org/10.1108/HRMID-08-2018-0161
ISSN: 0967-0734

Keywords

  • Organizational culture
  • Strategic HRM
  • Zappos
  • Holacracy

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Article
Publication date: 3 October 2016

Determining customers’ preferences for housing attributes in India

Vijay Kumar Gupta and Gunjan Malhotra

The purpose of this paper is to understand customers’ preferences for housing attributes in India.

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Abstract

Purpose

The purpose of this paper is to understand customers’ preferences for housing attributes in India.

Design/methodology/approach

The study highlights the attributes important to the customer when purchasing residential property. The Kano model has been used to understand these preferences of consumers. The data are collected across Delhi and the National Capital Region and have been analyzed using the cross-tabulation approach.

Findings

Demographics of the consumers play an important role in deciding purchase of residential real estate. Because of their income level, Indian consumers prefer low-rise residential complexes.

Originality/value

The study helps to understand the diverse behavior of Indian consumers when they invest in the real estate sector, especially residential.

Details

International Journal of Housing Markets and Analysis, vol. 9 no. 4
Type: Research Article
DOI: https://doi.org/10.1108/IJHMA-08-2015-0045
ISSN: 1753-8270

Keywords

  • India
  • Kano model
  • Real estate
  • Residential
  • Customers’ perspective
  • Housing attributes

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Article
Publication date: 26 November 2020

Current scenario of wind power in India, government policies, initiatives, status and challenges

Anand Vijay Satpute and E. Vijay Kumar

This paper aims to review the role of government initiatives for the development of wind power industries in India, to provide better and benevolent policies in the…

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Abstract

Purpose

This paper aims to review the role of government initiatives for the development of wind power industries in India, to provide better and benevolent policies in the production of wind energy density and to maximize the use of the renewable source of energy which permits to reduce carbon emission from the coal-based power plant and to curtail tackle need of society and mitigate poverty.

Design/methodology/approach

The present study is carried out on the current position of wind power generation in India. Government policies for promoting clean energy and associated problems are also analysed herein detail. However, secondary approaches are opted in terms of alertness of caring for the environment hazardous and reduced the major economies aspects by fulfilling the schema of Kyoto Protocol and Paris Agreement, United Nations Framework Convention on Climate Change.

Findings

The prospective of wind energy generation is huge, as an ancient source of energy, wind can be used both as a source of electricity and for agricultural, irrigation uses. The study of wind turbine blades and its features showed how it can be properly fabricated and used to extract the maximum power, even at variable and low wind speeds.

Research limitations/implications

Although India has achieved a remarkable advancement in wind power sectors, it needs to eradicate all the loopholes to evolve as super power in wind energy sector leaving behind its rivalry China. To do this, it is required to develop in many fields such as skilled manpower, advancement in research and development, grid and turbine installation, proper distribution, smooth land acquisition, modern infrastructure, high investment and above all industry friendly government policy.

Practical implications

The present study finds out effects of wind power energy as a source of renewable energy to mitigate energy crisis.

Social implications

As a source of renewable energy and cost effectiveness, wind power can be evolved as a potential means enhance social life.

Originality/value

The present paper caries out critical analysis for the active use of renewable energy in the present and forthcoming days. Such unique analysis must help India as a developing nation to balance its energy crisis.

Details

International Journal of Energy Sector Management, vol. 15 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/IJESM-03-2020-0007
ISSN: 1750-6220

Keywords

  • CO2 emission
  • Energy balance
  • Environmental damages
  • Energy sector
  • Renewable energies
  • Scenario analysis
  • Correlation analysis
  • Resource management
  • Wind
  • Renewable energy
  • Wind energy
  • Windfarm
  • National measures
  • Policies
  • Strategies
  • Tariff
  • Environment
  • Carbon emission

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Article
Publication date: 27 February 2009

A process for practicing design innovation

Vijay Kumar

Companies are increasingly adopting design processes as a key driver for their innovation practice. Design processes help companies develop innovations that produce high…

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Abstract

Purpose

Companies are increasingly adopting design processes as a key driver for their innovation practice. Design processes help companies develop innovations that produce high user value as well as economic value and business value. The purpose of this paper is to describe how design processes can be effectively used in innovation projects through a good understanding design principles, tools, and frameworks.

Design/methodology/approach

The frameworks in this paper are based on our direct experience with several innovation projects within leading companies. The processes adopted by many other companies and innovation projects, both academic and professional from around the world, were also studied as drawn from various sources. The goal was to uncover insights about the types of processes adopted by successful innovators.

Findings

These analyses reveal that there is a new focus on “design innovation” that produces offerings with a better fit with users and results in higher rates of adoption. It is found that these design processes are transforming the innovation practice of companies. The paper has identified four key principles that innovators use to ensure the success of their innovation practice. Further, it has developed a generic design process model that can be used as a guide for innovation projects, and identified a set of specific tools and frameworks that support the various stages of this generic process.

Originality/value

As design innovation processes are increasingly becoming a core part of the innovation practice in companies, there is a growing need to understand how companies can gain competence in this area. The generic design process model discussed in this paper, and a good understanding of the associated tools and frameworks, is a valuable resource for successful innovation practice.

Details

Journal of Business Strategy, vol. 30 no. 2/3
Type: Research Article
DOI: https://doi.org/10.1108/02756660910942517
ISSN: 0275-6668

Keywords

  • Design
  • Design management
  • Innovation
  • User studies

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Article
Publication date: 29 May 2020

Development of employee engagement measure: experiences from best companies to work for in India

Vijay Kumar Shrotryia and Upasana Dhanda

Employee engagement has become a hot topic among the global workforce. Both academicians and practitioners tout engagement to have a positive impact on individual and…

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Abstract

Purpose

Employee engagement has become a hot topic among the global workforce. Both academicians and practitioners tout engagement to have a positive impact on individual and organizational performance. However, despite the enhanced interest, the stagnant engagement levels worldwide pose a grave concern for the researchers. Numerous overlapping and inconsistent definitions of employee engagement lead to a conceptual chaos resulting in poor operationalization of the construct. The purpose of this paper is to develop a multi-dimensional measurement tool for employee engagement based on the evidences from the best companies to work for in India.

Design/methodology/approach

Interviews with the top management of the 15 best companies are used for the generation of items using grounded theory methodology. These items are then subjected to content validity assessment by six domain experts. The scale is administered to the middle-level employees of five companies (n = 332) through questionnaire for exploratory and confirmatory factor analysis, reliability assessment and initial evidences for convergent and discriminant validity.

Findings

The study aimed at developing and validating an employee engagement assessment instrument, which is well-grounded in theory and built on the conceptual framework proposed by both academicians and practitioners and rigorously tested for its psychometric properties to ensure the precise measurement of employee engagement. A 3-factor/16 item employee engagement measurement tool is the finding of this study, which attempts to bridge the incongruity between the academic and industrial view on employee engagement.

Originality/value

Looking at the dearth of measurement tools built in developing countries and with the intent of resolving the issues related with cultural differences in the application of western assessment tools, the developed scale made a notable contribution to engagement theory with prime focus in the Indian context. The three dimensions of employee engagement-alignment, affectiveness and action- orientation- are in a form and language, that is, comprehensible and consequential for practitioners enabling them to take a closer look at the critical engagement elements that align with the organization's human capital strategy and foster improved performance.

Details

Measuring Business Excellence, vol. 24 no. 3
Type: Research Article
DOI: https://doi.org/10.1108/MBE-07-2019-0071
ISSN: 1368-3047

Keywords

  • Employee engagement
  • Scale development
  • Grounded theory
  • Measurement instrument
  • Human resource development

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Article
Publication date: 11 July 2016

Quality changes in fresh rohu (Labeo rohita) cutlets added with fibers from ragi, oat and jowar

Gurnoor Kaur Lubana, Baljot Kaur Randhawa, Vijay Kumar Reddy Surasani and Ajeet Singh

This study aims to develop fiber-enriched cutlets from minced meat of rohu and study the effects of fiber inclusion on composition, cooking properties and acceptability of cutlets.

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Abstract

Purpose

This study aims to develop fiber-enriched cutlets from minced meat of rohu and study the effects of fiber inclusion on composition, cooking properties and acceptability of cutlets.

Design/methodology/approach

Cutlet mix prepared using rohu mince was divided into four lots, out of which three lots were enriched with fibers from ragi (RFC), jowar (JFC) and oat (OFC) at 10 per cent over and above its quantity. Prepared cutlets were analyzed for nutritional composition, texture, cooking properties and sensorial quality.

Findings

Moisture, protein, fat, fiber and ash contents (per cent) of the fiber-enriched cutlets ranged between 40.4-42.0, 24.5-25.5, 13.2-14.7, 1.8-2.0 and 2.4-2.5 per cent, respectively. The addition of fibers increased the cooking yield of cutlets from 84.6 to 87.5 per cent. RFC lot cutlets had the lowest whiteness values and the highest hardness and shear force values. Cutlets from all the lots had an overall acceptability scores more than 7.0, indicating the sensorial acceptability. Although the differences were insignificant, cutlets from the RFC lot were less acceptable, which might be because of the dark color and tough texture. Hence, jowar and oat flour at 10 per cent can be used to enrich rohu cutlets without affecting their sensorial acceptability.

Research limitations/implications

Sources of fiber will be the major limitation in the work, as the fiber inclusion may negatively affect the quality and acceptability of cutlets. Time of cooking will also influence the final product characteristics, which need to be standardized.

Practical implications

Fish is a rich source of protein but lacks fiber, which is essential for body metabolism. Grains are rich source of fibers but lack some essential nutrients required by the body. In India, many people are dependent on fish for protein due to its high nutritious value. So enriching fish meat with fiber sources will address the health-related problems associated with low-fiber diets. The methodology developed in this work can be used to fulfill the demand for balanced and nutritious diet. Because of increasing health awareness, fish products with added fiber will also increase its market potential.

Social implications

The methodology developed can be used by small-scale entrepreneurs to earn more income by developing functional fish products with low-cost ingredients. The developed products will not only address the issues related to the consumption of low-fiber diets but also create a market for fish products because of their health-benefiting effects.

Originality/value

The work is completely original in nature. The results reported are unique and the outcome of the research has social applicability.

Details

Nutrition & Food Science, vol. 46 no. 4
Type: Research Article
DOI: https://doi.org/10.1108/NFS-02-2016-0023
ISSN: 0034-6659

Keywords

  • Quality
  • Acceptability
  • Cutlets
  • Fiber
  • Rohu

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Article
Publication date: 8 May 2017

Influence of rohu (Labeo rohita) deboning by-product on composition, physical properties and sensorial acceptability of rohu cutlets

Vijay Kumar Reddy Surasani

The purpose of the study was to utilize rohu deboning by-product to develop edible cutlets and to study its effects on quality and acceptability.

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Abstract

Purpose

The purpose of the study was to utilize rohu deboning by-product to develop edible cutlets and to study its effects on quality and acceptability.

Design/methodology/approach

Fish cutlets were prepared with varying mince and by-product ratios (100:0, 75:25, 50:50, 25:75 and 0:100 per cent) and the effect of by-product inclusion on composition, cooking characteristics, texture and acceptability were studied.

Findings

Cutlets from control group had highest values for protein, fat, diameter reduction, fat retention and height increase (29.9, 14.9, 7.6, 78.3 and 31.9 per cent) compared to other lots. Highest values for cooking yield (p > 0.01), lightness and whiteness were (92.7, 35.4 and 31.2 per cent) found in cutlets from 100 per cent BP lot. Hardness and shear force increased with by-product content (p < 0.01) being maximum in cutlets from 100 per cent BP lot. Though all the cutlets were acceptable, low sensory scores were recorded for 75 BP and 100 per cent BP lots (p > 0.01). By-products can be incorporated up to 50 per cent into fish cutlets without negatively affecting the eating quality.

Research limitations/implications

Amount of by-product to be added was the limitation during the work. More by-product content in the cutlets resulted in low-palatability. Total calcium content in the cutlets need to be checked as calcium content per serving should not be above the regulations.

Practical/implications

In general, nutritionally rich fish deboning by-product is used for cattle feeding or discarded into dumping grounds causing pollution, nutritional, as well as economic loss to the farmers. The findings of this study will be helpful to develop nutritionally rich and edible food products from this deboning by-product. Incorporation of by-product into cutlets will allow the farmers to sell their products at lower prices without compromising the profits, which will improve the marketing as well as consumption.

Social/implications

Utilization of fish deboning by-product to develop edible cutlets helps in reducing the operational costs, pollution and efficient utilization of process by-products.

Originality/value

The work is completely original in nature. The results reported are unique and the outcome of the research has social applicability.

Details

Nutrition & Food Science, vol. 47 no. 3
Type: Research Article
DOI: https://doi.org/10.1108/NFS-08-2016-0128
ISSN: 0034-6659

Keywords

  • Acceptability
  • Quality
  • Rohu
  • By-product
  • Cutlets
  • Deboning

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