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Article
Publication date: 26 July 2021

Deepinder Singh Wadhwa, Praveen Kumar Malik and Jaspal Singh Khinda

A compact low-cost antenna structure is proposed to augment the impedance-bandwidth in mm-wave range. Beside it, the paper also aimed to enhance high gain for n260 and n261-bands…

Abstract

Purpose

A compact low-cost antenna structure is proposed to augment the impedance-bandwidth in mm-wave range. Beside it, the paper also aimed to enhance high gain for n260 and n261-bands, suitable for futuristic communication systems.

Design/methodology/approach

Design consists of radiating patch and a partial ground plane with semi-circle arc for smooth flow of current. The lower corners of patch are gradually clipped away to make the patch nearly elliptical. Further, two tilted slots at an angle α = 15° are etched at the edges of the patch to augment bandwidth for mm-wave range. These slots divert the periphery current of semi elliptical patch towards center portion of antenna which ensures the participation in radiation of central portion of patch. The upper corners are also clipped away to limit the copper losses and smoothly flow of current. The proposed antenna is designed using HFSS and it is structured on inexpensive FR4 substrate of size 27.5 × 20 mm2.

Findings

It supports enormous −10 dB bandwidth of 5.86–40GHz (148.89%) even though use of high loss-tangent material and high gain for 28 GHz (27.50–28.35 GHz) n261–band and 37 GHz (37–38.6 GHz) and 39 GHz (38.6–40GHz) n260–bands with a peak-gain of 8.76 dBi, 10.8 dBi and 9.92 dBi, respectively.

Originality/value

The proposed methodology of design is very useful to enhance impedance bandwidth to cover all C–, X–, Ku–, K– and Ka–band even though use of low cost material with high loss tangent. In recent literature, the designs were implemented with a costly material and having very low loss tangent and covers partial suggest bands.

Details

World Journal of Engineering, vol. 19 no. 5
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 12 March 2021

Hashwini Lalchand Thadani, Fadia Dyni Zaaba, Muhammad Raimi Mohammad Shahrizal, Arjun Singh Jaj A. Jaspal Singh Jaj and Yun Ii Go

This paper aims to design an optimum vertical axis wind turbine (VAWT) and assess its techno-economic performance for wind energy harvesting at high-speed railway in Malaysia.

Abstract

Purpose

This paper aims to design an optimum vertical axis wind turbine (VAWT) and assess its techno-economic performance for wind energy harvesting at high-speed railway in Malaysia.

Design/methodology/approach

This project adopted AutoCAD and ANSYS modeling tools to design and optimize the blade of the turbine. The site selected has a railway of 30 km with six stops. The vertical turbines are placed 1 m apart from each other considering the optimum tip speed ratio. The power produced and net present value had been analyzed to evaluate its techno-economic viability.

Findings

Computational fluid dynamics (CFD) analysis of National Advisory Committee for Aeronautics (NACA) 0020 blade has been carried out. For a turbine with wind speed of 50 m/s and swept area of 8 m2, the power generated is 245 kW. For eight trains that operate for 19 h/day with an interval of 30 min in nonpeak hours and 15 min in peak hours, total energy generated is 66 MWh/day. The average cost saved by the train stations is RM 16.7 mil/year with battery charging capacity of 12 h/day.

Originality/value

Wind energy harvesting is not commonly used in Malaysia due to its low wind speed ranging from 1.5 to 4.5 m/s. Conventional wind turbine requires a minimum cut-in wind speed of 11 m/s to overcome the inertia and starts generating power. Hence, this paper proposes an optimum design of VAWT to harvest an unconventional untapped wind sources from railway. The research finding complements the alternate energy harvesting technologies which can serve as reference for countries which experienced similar geographic constraints.

Details

World Journal of Science, Technology and Sustainable Development, vol. 18 no. 2
Type: Research Article
ISSN: 2042-5945

Keywords

Article
Publication date: 1 March 1998

Jaspal Singh

The irregularities in securities and banking transactions, more popularly known as the ‘Bank Scam’ first came to public notice through an exposure by the press on 28th April…

Abstract

The irregularities in securities and banking transactions, more popularly known as the ‘Bank Scam’ first came to public notice through an exposure by the press on 28th April, 1992, revealing a shortfall in government securities in the State Bank of India, which is a premier bank of the country, amounting to Rs640 crores.

Details

Journal of Financial Crime, vol. 6 no. 1
Type: Research Article
ISSN: 1359-0790

Article
Publication date: 22 November 2011

Jaspal Singh and Gagandeep Kaur

The purpose of this paper is to determine the factors that have an impact on customer satisfaction as regards the working of select Indian universal banks.

3218

Abstract

Purpose

The purpose of this paper is to determine the factors that have an impact on customer satisfaction as regards the working of select Indian universal banks.

Design/methodology/approach

The study was conducted using the survey method. Data were collected through a well‐structured questionnaire from a sample of 456 respondents.

Findings

The major findings of the study show that customer satisfaction is influenced by seven factors: employee responsiveness, appearance of tangibles, social responsibility, services innovation, positive word‐of‐mouth, competence, and reliability. The results of multiple regression showed that three variables: social responsibility, positive word‐of‐mouth, and reliability, are statistically significant in the model at 5 percent significance level that have an impact on the overall satisfaction of the customer.

Research limitations/implications

The study suffers from a regional bias since it covers only Punjab and Chandigarh. The results do not have general applications to different banks in the same sector and the same banks in different cities of India. Increased sample size and multi‐city sampling can be considered for future research for better generalization of the findings. Results would be more appropriate if the sample size could be large. These limitations offer an opportunity for further research.

Originality/value

The study is quite useful for understanding and comprehending the changes in customer banking behaviour, so to enable the policy makers to develop appropriate and adaptive strategies. The paper provides determinants of customer satisfaction. With an effective customer satisfaction research program, banks will be able to encash business, i.e. gain opportunities by putting themselves at a competitive advantage.

Details

International Journal of Commerce and Management, vol. 21 no. 4
Type: Research Article
ISSN: 1056-9219

Keywords

Article
Publication date: 8 March 2013

Jaspal Singh and Parminderjit Kaur

The purpose of the paper is to determine the factors that lead to satisfaction of the customers as regards to e‐banking services provided by selected banks in India.

1481

Abstract

Purpose

The purpose of the paper is to determine the factors that lead to satisfaction of the customers as regards to e‐banking services provided by selected banks in India.

Design/methodology/approach

Survey method was used to conduct the study. Data were collected through a well structured questionnaire from a sample of 350 respondents.

Findings

As a major finding of the study, six factors namely ease of use, reliability, convenient accessibility, security, low transaction cost and the time consumption emerged as factors that lead to customer satisfaction as regards e‐banking services. Further, the results of multiple regression showed that out of the above mentioned six factors, three factors, namely, ease of use (i.e. user friendly web sites leading to easy technology‐customer interaction), low transaction cost (i.e. saving of time, speed of service delivery, convenience and reduced paper work in monetary terms) and security (i.e. dependable safety mechanism in terms of illegal access of accounts, hacking and password protection) are found to be statistically significant at 5 percent significance level.

Research limitations/implications

The study has a regional bias since the respondents belong to a single state of northern India. To have better generalisation of the results, a sample size could be made appropriately large and a wider geographical area be covered.

Practical implications

Taking findings of the study into consideration, strategies could be drawn by the bankers to spread their businesses as a large chunk of the population in India is still not using banking services. Through internet, however, access could be provided to customers residing in remote areas of the country.

Originality/value

The study is quite helpful for the policy makers in comprehending the attitude of banking customers towards e‐banking services provided by the banks and for developing appropriate strategies for placing themselves at competitively advantageous positions.

Details

International Journal of Commerce and Management, vol. 23 no. 1
Type: Research Article
ISSN: 1056-9219

Keywords

Article
Publication date: 9 November 2015

Jaspal Singh and Kiranpreet Kaur

The purpose of this study is to examine the relevance of an accounting-based fundamental strategy in adding value to value stocks in Indian stock market. The fundamentals-based…

2174

Abstract

Purpose

The purpose of this study is to examine the relevance of an accounting-based fundamental strategy in adding value to value stocks in Indian stock market. The fundamentals-based investment strategy “F-score”, given by Joseph Piotroski, has been used on stocks having high book-to-market ratio to eliminate the firms with poor future prospects from the entire portfolio of value stocks.

Design/methodology/approach

The market adjusted performance of all the firms in the sample is examined using one sample t-test. Further, F-score of all the firms in the sample is calculated and the independent sample t-test has been used to examine the significance of mean difference between high-score and low-score firms. Finally, the predictive ability of F-score in explaining the overall stock returns is examined using panel data regression analysis.

Findings

Results reveal that the mean market-adjusted return of stocks, meeting all constructs of F-score is significantly larger than the entire portfolio of value stocks by 18.402 per cent annually across the period of study. The results of panel data regression made it evident that one-point improvement in aggregate F-score is associated with an about 4.93 per cent increase in one-year market-adjusted return.

Practical implications

The significant mean return difference found between the high-F-score firms and the low-score firms suggests that an investor could constitute a hedge portfolio that generates positive return by selling expected losers stocks and buying expected winners.

Originality/value

The present study is the first attempt made in emerging economy like India to enrich the literature on value investing strategies by examining the performance of F-score strategy to separate winners from losers in Indian stock market.

Details

International Journal of Law and Management, vol. 57 no. 6
Type: Research Article
ISSN: 1754-243X

Keywords

Article
Publication date: 28 October 2014

Jaspal Singh and Kiranpreet Kaur

The purpose of this paper is to examine the applicability of stock selection criteria of Benjamin Graham in Indian capital market to determine which rules specifically can help…

Abstract

Purpose

The purpose of this paper is to examine the applicability of stock selection criteria of Benjamin Graham in Indian capital market to determine which rules specifically can help the investors to augment their return on investment.

Design/methodology/approach

The independent sample t-test has been employed to examine the stock return differences among the companies which fulfill maximum number of the criteria and the companies fulfilling minimal number. The significance of the excess returns yielded by the criteria is assessed through one sample t-statistics. Further, the applicability of each and every criterion is examined using pooled OLS regression analysis.

Findings

The mean market adjusted returns of the companies which fulfill maximum number of the criteria are significantly different from the companies which fulfill minimal number. The companies those are able to fulfill at least any five criteria, yield excess returns to the investors. However, regression analysis makes it evident that all the criteria are not applicable in present economic environment.

Research limitations/implications

The study recommends that an investor should give due importance to variables mainly high earnings yield, discount to tangible book value and net current asset value, lower leverage and stability in earnings in order to screen value maximizing securities.

Originality/value

This paper extends discussion on application of Graham's stock selection criteria in Indian stock market. The study also enriches the literature on value investing strategies by extending discussion on reasons for the applicability/inapplicability of the Graham's stock selection criteria.

Details

Journal of Advances in Management Research, vol. 11 no. 3
Type: Research Article
ISSN: 0972-7981

Keywords

Content available
Article
Publication date: 8 March 2013

54

Abstract

Details

International Journal of Commerce and Management, vol. 23 no. 1
Type: Research Article
ISSN: 1056-9219

Keywords

Article
Publication date: 1 May 1984

Things seem to be going desperately wrong with the concept of the “brave new world” predicted by the starry‐eyed optimists after the Second World War finally came to an end. To…

Abstract

Things seem to be going desperately wrong with the concept of the “brave new world” predicted by the starry‐eyed optimists after the Second World War finally came to an end. To those who listen only to what they want to hear, see everything, not as it is, but as they would like it to be, a new society could be initiated and the lusty infant would emerge as a paragon for all the world to follow. The new society in truth never really got off the ground the biggest mistake of all was to cushion millions of people against the results of their own folly; to shelter them from the blasts of the ensuing economic climate. The sheltered ones were not necessarily the ordinary mass of people; many in fact were the victims and suffered the consequences. And now that the state has reached a massive crescendo, many are suffering profoundly. The big nationalised industries and vast services, such as the national health service, education, where losses in the case of the first are met by Government millions, requests to trim the extravagant spending is akin to sacrilege in the latter, have removed such terms as thrift, careful spending, value for money from the vocabulary.

Details

British Food Journal, vol. 86 no. 5
Type: Research Article
ISSN: 0007-070X

Case study
Publication date: 28 April 2015

G Raghuram and Darshit Jasani

This case describes the events following an incident of a rape in a taxi associated with Uber, by its driver. Uber was an application based taxi operator. The events raised…

Abstract

This case describes the events following an incident of a rape in a taxi associated with Uber, by its driver. Uber was an application based taxi operator. The events raised several issues for government systems and processes, such as need for regulation of new formats of business like application based taxi services, integrated databases, checks against forgery and holistic approach towards women safety. The case also brings out how an e-commerce business raises regulatory concerns.

Details

Indian Institute of Management Ahmedabad, vol. no.
Type: Case Study
ISSN: 2633-3260
Published by: Indian Institute of Management Ahmedabad

Keywords

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