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Article
Publication date: 8 January 2018

Saurabh Kumar Yadav, Arvind Kumar Rajput, Nathi Ram and Satish Chandra Sharma

This study aims to analyze the dynamic performance of aerostatic thrust bearing for different geometries of recess. Different geometries of recess of equal recess area…

Abstract

Purpose

This study aims to analyze the dynamic performance of aerostatic thrust bearing for different geometries of recess. Different geometries of recess of equal recess area, i.e. circular, elliptical, rectangular and annular, have been considered in analysis. The work also analyzes the influence of tilt angle on the performance of thrust bearing. To compute the unknown pressure field, the Reynolds equation governing the flow of compressible lubricant (air) has been solved using finite element formulation. Further, separate finite element formulations have been carried out to compute fluid film stiffness and damping coefficients directly. This method provides quick computation of stiffness and damping coefficients of aerostatic thrust bearing than the usual approach.

Design/methodology/approach

As the Reynolds equation governing the flow of compressible lubricant is nonlinear partial differential equation, the computation of the stiffness and damping coefficient follows an iterative procedure. It requires a lot of computational energy. Therefore, in the present work, a novel technique based on finite element formulation is suggested to compute air film stiffness and damping coefficient in aerostatic thrust bearing.

Findings

A novel technique based on finite element formulation is illustrated to simulate the performance of tilted pad aerostatic thrust bearing. On the basis of simulated results, following key conclusions may be drawn. The static and dynamic performance of a circular aerostatic tilted thrust pad bearing is significantly affected with a change in the value of tilt parameter and the shape of the recess.

Research limitations/implications

Implications are as follows: direct computation of air film damping coefficient is performed without perturbation method in finite element method (FEM); influence of tilt on aerostatic thrust bearing is studied; influence of recess shape on aerostatic thrust bearing is observed; and finite element formulation of aerostatic thrust bearing is performed.

Originality/value

The present work will be quite useful for bearing designer and academicians.

Details

Industrial Lubrication and Tribology, vol. 70 no. 1
Type: Research Article
ISSN: 0036-8792

Keywords

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Case study
Publication date: 11 August 2014

Sanjeev Prashar, Harvinder Singh, Kumar Saurabh and Virinchi Acharlu Madanapalli

The case is intended to be used by post-graduate students of Management in the courses of Marketing Management and New Product Management. This case may also be used in…

Abstract

Study level/applicability

The case is intended to be used by post-graduate students of Management in the courses of Marketing Management and New Product Management. This case may also be used in other courses like Consumer Behaviour and Strategic Marketing.

Case overview

Indian fast-moving consumer goods (FMCG) sector set to reach an astonishing INR165.62 trillion (US$3.6 trillion) by 2012 gave a tremendous opportunity to Hindustan Unilever Limited (HUL) to establish its footprint in all consumer packaged products. Dove, a brand of HUL, primarily catering to the premium segment of the market, launched Dove Elixir Hair Oil in November 2012 priced at INR185 (US$3.41) for 90 ml. This was five times higher than any other light hair oil in the market. The case brings out facts that describe market situations at that time and questions if a substantial market at higher end, for Dove hair oil, was available.

Expected learning outcomes

This case has been documented to help students understand the concept and applicability of brand extension strategy. The students shall learn the dynamics of this strategy in the market by answering the following questions: What are the factors that contributed to the growth of FMCG market in India? Evaluate HUL's decision to extend the brand Dove into other product categories? Was the market for Dove hair oil available at the higher end? What strategies should Dove use for its hair oil?

Supplementary materials

Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.

Details

Emerald Emerging Markets Case Studies, vol. 4 no. 3
Type: Case Study
ISSN: 2045-0621

Keywords

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Article
Publication date: 14 October 2020

Saurabh Kumar, Baidyanath Biswas, Manjot Singh Bhatia and Manoj Dora

The present study aims to identify and investigate the antecedents of enhanced level of cyber-security at the organisational level from both the technical and the human…

Abstract

Purpose

The present study aims to identify and investigate the antecedents of enhanced level of cyber-security at the organisational level from both the technical and the human resource perspective using human–organisation–technology (HOT) theory.

Design/methodology/approach

The study has been conducted on 151 professionals who have expertise in dealing with cyber-security in organisations in sectors such as retail, education, healthcare, etc. in India. The analysis of the data is carried out using partial least squares based structural equation modelling technique (PLS-SEM).

Findings

The results from the study suggest that “legal consequences” and “technical measures” adopted for securing cyber-security in organisations are the most important antecedents for enhanced cyber-security levels in the organisations. The other significant antecedents for enhanced cyber-security in organisations include “role of senior management” and “proactive information security”.

Research limitations/implications

This empirical study has significant implications for organisations as they can take pre-emptive measures by focussing on important antecedents and work towards enhancing the level of cyber-security.

Originality/value

The originality of this research is combining both technical and human resource perspective in identifying the determinants of enhanced level of cyber-security in the organisations.

Details

Journal of Enterprise Information Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1741-0398

Keywords

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Article
Publication date: 4 June 2018

Kumar Saurabh and Tanuj Nandan

The purpose of this paper is to examine the relationships between financial knowledge, socialization and financial satisfaction with financial risk attitude and financial…

Abstract

Purpose

The purpose of this paper is to examine the relationships between financial knowledge, socialization and financial satisfaction with financial risk attitude and financial behavior as a mediator after demonetization and introduction of GST.

Design/methodology/approach

The sample consisted responses of 286 individuals from the city of Allahabad, Uttar Pradesh, India and making financial decisions for the household for at least last two years. The data were analyzed using exploratory factor analysis and mediation regression analysis.

Findings

All sub-scales used to measure constructs had satisfactory reliabilities and internal consistencies. It was found that financial risk attitude and financial behavior both mediate the relationship between financial socialization and financial satisfaction as well as between financial knowledge and financial satisfaction.

Research limitations/implications

This research is based upon survey method and voluntary participation. Hence one can question generalization of findings to larger samples. Moreover, the study is limited to a restricted geographical region which could affect the generalization of findings.

Practical implications

Results provide insights into the antecedents of financial satisfaction of individuals from tier II city of India. Financial planners may utilize this study for enhancement of financial satisfaction of their clients and hence retention of the same.

Originality/value

A majority of researchers use survey without evaluation validity of instruments in the selected context and sample. This research contributed to the literature and practice by testing validation of constructs of financial satisfaction in India.

Details

South Asian Journal of Business Studies, vol. 7 no. 2
Type: Research Article
ISSN: 2398-628X

Keywords

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Article
Publication date: 1 December 2005

Saurabh Kumar, P.S. Mukherjee and N.M. Mishra

Engine oil degrades in quality during its use and after certain period of time the oil needs to be changed depending upon its condition. The purpose of this paper is to…

Abstract

Purpose

Engine oil degrades in quality during its use and after certain period of time the oil needs to be changed depending upon its condition. The purpose of this paper is to design and develop an online condition monitoring device for engine oil.

Design/methodology/approach

Based on the previous works in this line and some testing of used oils in the laboratory, the correlation of change in colour with other properties were identified. An optical colour sensor was then designed and developed which can transform the darkness of oil colour into electrical resistance. A series of tests were undertaken to calibrate the system for its correctness.

Findings

This type of sensor provides the information about the condition of the oil and also can inform about the probable time for drain‐off of the oil.

Practical implications

Engine oil changes are normally done by schedules which are highly conservative and cost the user as the oil is changed when it could be still used for some time. Use of an online sensor will minimize the cost on lubricants to some extent.

Originality/value

The device is of great value to the users of IC engines as it not only reduces the cost on lubricants but also informs the user about the present condition of the oil.

Details

Industrial Lubrication and Tribology, vol. 57 no. 6
Type: Research Article
ISSN: 0036-8792

Keywords

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Book part
Publication date: 30 September 2020

Shivinder Nijjer, Kumar Saurabh and Sahil Raj

The healthcare sector in India is witnessing phenomenal growth, such that by the year 2022, it will be a market worth trillions of INR. Increase in income levels…

Abstract

The healthcare sector in India is witnessing phenomenal growth, such that by the year 2022, it will be a market worth trillions of INR. Increase in income levels, awareness regarding personal health, the occurrence of lifestyle diseases, better insurance policies, low-cost healthcare services, and the emergence of newer technologies like telemedicine are driving this sector to new heights. Abundant quantities of healthcare data are being accumulated each day, which is difficult to analyze using traditional statistical and analytical tools, calling for the application of Big Data Analytics in the healthcare sector. Through provision of evidence-based decision-making and actions across healthcare networks, Big Data Analytics equips the sector with the ability to analyze a wide variety of data. Big Data Analytics includes both predictive and descriptive analytics. At present, about half of the healthcare organizations have adopted an analytical approach to decision-making, while a quarter of these firms are experienced in its application. This implies the lack of understanding prevalent in healthcare sector toward the value and the managerial, economic, and strategic impact of Big Data Analytics. In this context, this chapter on “Predictive Analytics in Healthcare” discusses sources, areas of application, possible future areas, advantages and limitations of the application of predictive Big Data Analytics in healthcare.

Details

Big Data Analytics and Intelligence: A Perspective for Health Care
Type: Book
ISBN: 978-1-83909-099-8

Keywords

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Article
Publication date: 1 April 2005

Saurabh Kumar, N.M. Mishra and P.S. Mukherjee

To study and estimate changes of various properties upon use of engine oil by different methods.Design/methodology/approach – By viscosity measurement, pH measurement…

Abstract

Purpose

To study and estimate changes of various properties upon use of engine oil by different methods.Design/methodology/approach – By viscosity measurement, pH measurement, Fourier transform infra‐red spectroscopic analysis and UV‐Visible (Ultraviolet and visible rays) spectroscopic analysis.Findings – Some specific changes in additives of the oil upon use could be traced.Practical implications – Correct choice for additives for a particular use may enhance the oil life and also protect the engine from damage.Originality/value – The findings may be important to the lube oil producers and the users.

Details

Industrial Lubrication and Tribology, vol. 57 no. 2
Type: Research Article
ISSN: 0036-8792

Keywords

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Book part
Publication date: 30 September 2020

Abstract

Details

Big Data Analytics and Intelligence: A Perspective for Health Care
Type: Book
ISBN: 978-1-83909-099-8

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Article
Publication date: 7 December 2020

Joy Chowdhury, Angsuman Sarkar, Kamalakanta Mahapatra and Jitendra Kumar Das

The purpose of this paper is to present an improved model based on center potential instead of surface potential which is physically more relevant and accurate. Also…

Abstract

Purpose

The purpose of this paper is to present an improved model based on center potential instead of surface potential which is physically more relevant and accurate. Also, additional analytic insights have been provided to make the model independent and robust so that it can be extended to a full range compact model.

Design/methodology/approach

The design methodology used is center potential based analytical modeling using Psuedo-2D Poisson equation, with ingeniously developed boundary conditions, which help achieve reasonably accurate results. Also, the depletion width calculation has been suitably remodeled, to account for proper physical insights and accuracy.

Findings

The proposed model has considerable accuracy and is able to correctly predict most of the physical phenomena occurring inside the broken gate Tunnel FET structure. Also, a good match has been observed between the modeled data and the simulation results. Ion/Iambipolar ratio of 10^(−8) has been achieved which is quintessential for low power SOCs.

Originality/value

The modeling approach used is different from the previously used techniques and uses indigenous boundary conditions. Also, the current model developed has been significantly altered, using very simple but intuitive technique instead of complex mathematical approach.

Details

Circuit World, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0305-6120

Keywords

Content available

Abstract

Details

Management of Environmental Quality: An International Journal, vol. 29 no. 3
Type: Research Article
ISSN: 1477-7835

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