Search results

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.

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.

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.

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.

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

The purpose of this study is to identify how the privacy policy can be framed for protection of personal data and how the latest judgement of full bench of Supreme Court of India has dealt with right to privacy in India.

The study uses the latest Supreme Court judgement on right to privacy and historical cases on right to privacy in India. This paper uses Indian Constitution as a source of Information for study along with case laws and judgements of different courts in India.

This paper tries to find if personal data privacy is a fundamental right in India. In addition, the paper provides recommendations to different concerned authorities on protecting personal information in online platform.

This study deals with privacy issues so far as Indian citizens are concerns and does not focus on other countries. Moreover, the study tries to understand the issue of fundamental rights from Indian Constitution perspective. In addition, the recommendations provided to the policymakers and other authorities of India have wide implications for formulation of new policy and management of personal data, so that it should not go to wrong hands and the personal data and privacy is protected of the citizens.

Millions of people put their personal information in online platform. In addition, there are few government initiatives in India such as Aadhaar card where the biometric information is taken from the residents of India, and in many cases, the personal data are compromised under various circumstances. As the personal data of the citizens are in question, thus the study has direct practical implication mainly for all the citizens whose personal data are available in online platform.

This study has social implication as it dealt with the “personal data” of the citizens of India. As the paper discusses the issue of protection of personal data in the context of right to privacy, thus this study has a direct social impact so far as online citizen of India is concerned.

This paper is timely, original and discusses the contemporary issue of online data privacy and fundamental right in India. This paper is a useful resource for the researchers, policymakers and online users who deal with personal data-, right to privacy and data privacy policy-related areas.

The aim of the present paper is to study the combined influence of textured surface and micropolar lubricant behaviour on the performance of two-lobe hole-entry hybrid journal bearing system. The bearing performance parameters of the textured circular/two-lobe hole-entry hybrid journal bearing system have been computed against the constant vertical external load supported by the bearing.

In this work, Eringen’s micropolar fluid theory has been used to derive the governing Reynolds equation. The consequent solution of the governing Reynolds equation has been obtained by using finite element method (FEM) numerical technique.

The present study indicates that the use of the textured surface, two-lobe profile of bearing and micropolar lubricant, significantly enhances the bearing performance as compared to non-textured circular journal bearing.

The present study concerning the influence of surface texturing on the behaviour of the two-lobe hole-entry hybrid journal bearing lubricated with micropolar lubricant is original. The theoretically simulated results of the present study will be useful to design an efficient journal bearing system.

This study aims to explore the impact of the containment measures during COVID-19 on individuals’ finances, financial resilience during such distress and identifying the most financially vulnerable among them. Tracing such impact during the pandemic has been challenging due to a lack of representative data. This paper addresses this gap in the present study.

A survey has been conducted using a structured questionnaire containing various items that portray the impact on income, spending, saving, investment, borrowing, insurance and retirement. The sample consists of 699 respondents and purposive and snowball sampling has been used for data collection. The results are presented and analyzed using infographics and frequency distributions. This study conducts an analysis of variance and Chi-square tests for significance.

This paper finds a fall in income and limited ability to cope with the current economic conditions. The survey highlights inadequate savings and insurance, weak retirement planning, outstanding loans and under-diversified investments inhibiting financial resilience even among the higher-income group. Particularly, lower-income strata, women and not much educated are most financially vulnerable. Further, no substantial financial benefits have been received from the government and people rely on their usual income sources.

To the best of the authors’ knowledge, this is the first study that measures the pandemic’s impact on personal finances, especially in connection with a developing economy like India. Policy interventions are critical to the millions for whom financial literacy is required now more than ever.

The purpose of the study is to examine the value-based performance of firms in construction sector in India using Tobin's Q and Market Capitalization (MCAP) and then determine their significant financial drivers.

The study is based on data from 87 firms engaged in infrastructure, real estate, industrial construction and allied areas in India over a study period of 10 years. Three distinct forms of panel regression models have been developed using Tobin's Q and MCAP as dependent variables. The models developed are using Baltagi's (1981) Error Component 2SLS, Varadharajan-Krishnakumar's (1987) Generalized 2SLS and Arellano – Bower/Blundell – Bond's (1991) dynamic panel.

The study found that MCAP is a better suited value-based performance measure for construction sector firms in India. The study further reports that the age of the firm, profit after tax, investment in research and development, dividends, leverage and net fixed asset are significant positive drivers, whereas cash flow is a significant negative driver.

The study is limited to a geographic location; therefore, the findings of this study cannot be generalized.

As MCAP is a better suited value-based performance measure of a firm in the construction sector, managers should focus on improving profitability, higher research and development activities, higher dividends and higher expenditures on net fixed assets for improvement.

This is an original attempt to examine the value-based performance of firms in the construction sector in India using Tobin's Q and MCAP.

The purpose of this paper is to analyze the effects of various factors like profitability, growth opportunity, financial leverage, assets tangibility, operating cash flows, age and size of firm on working capital requirements (WCR) of manufacturing SMEs in India.

The paper uses a panel data regression model with fixed and random effect estimations. The data utilized in this study includes financial data of 254 manufacturing SMEs operating in India for the period 2010 to 2014.

The overall results of the study indicate that operating cash flow, financial leverage, profitability, sales growth and asset tangibility are the key drivers of WCR for Indian manufacturing SMEs. Profitability of firm and sales growth are found to be positively related to WCR. In contrast, asset tangibility, operating cash flow and financial leverage are found to be negatively related to WCR.

This paper investigates firm-specific factors while ignoring external factors like GDP growth, business indicators and industry type. Further research can be done to assess the effect of these external factors on WCR.

This research contributes to the working capital literature by providing empirical evidence on determining factors of WCR in manufacturing SMEs.

The purpose of this paper is to explore the use of chiral single‐walled carbon nanotubes (SWCNTs) as mass sensors. Analysis of SWCNT with chiralities is performed using an atomistic finite element model based on a molecular structural mechanics approach.

The cantilever carbon nanotube (CNT) is modeled by considering it as a space frame structure similar to three‐dimensional beams and point masses. The elastic properties of the beam element are calculated by considering mechanical characteristics of covalent bonds between the carbon atoms in the hexagonal lattice. The mass of each beam element is assumed as point mass at nodes coinciding with carbon atoms. An atomistic simulation approach is used to find the natural frequencies and to study the effects of defect like atomic vacancies in CNTs on the resonant frequency. The migration of the atomic vacancies along the length is observed for different chiralities.

A reduction in the simulated natural frequency is observed with the maximum value occurring, when the vacancy is found nearer to the fixed end. It is quite evident from the simulation results that the effect of vacancies is significant, and the effect diminishes at 10⁻² femtograms mass. Using the higher modes of vibration of SWCNT‐based mass sensors, the amount and the position of the mass on the nanotube can be identified.

CNT have been used as mass sensors extensively. The present approach is focused to explore the use of chiral SWCNT as sensing device with vacancy defect in it. The variation of the atomic vacancies in CNT along the length has been taken and is analyzed for different chiralities. The effects of defect like atomic vacancies in CNTs on the resonant frequency have been analyzed and observed that the maximum reduction in natural frequency occurs when the vacancy is found nearer to the fixed end due to large stiffness variation.

On 20 March 2020, the four adult convicts of the 2012 Delhi rape case were executed after a long debate regarding the punishment for their crime. The Delhi rape case, unlike others, was also given to the fast track court because of the worldwide outrage India received in its aftermath. Otherwise, most rape survivors rarely speak out and if they do, their lives are often endangered and threatened, depending on the severity of the case itself and the perpetrator's rank in the society. Through the analysis of Aniruddha Roy Chowdhury's, 2016 film Pink, and Ajay Bahl's film Section 375 (2019), this chapter explores the different ways in which mainstream Hindi cinema deals with such questions, especially in its depictions of courts. Both these films foreground India's contemporary cultural systems of fear that silence the rape survivors. They also imply that in the court cases, unless the specific court case faces intense global publicity, as was the case of the Delhi gang rape, rape survivors will never want to speak out. Moreover, the rape survivors will also hesitate to file a First Information Report (FIR) – a document that records crimes by the police against their perpetrators – limiting any possibility for justice for them. The laws surrounding rape cases are obscure and complex and finding justice for a rape victim (unless it is on a global level) is not an easy venture in India. At the time of the #metoo movement, the rape laws in India are not designed in such a way to arguably encourage victim-survivors to speak up. Instead, if rape survivors do decide to confront their perpetrators, they not only face ostracisation from society but also the danger of losing loved ones and endanger their lives as well.

Caste is the basic structural feature of Hindu society; all social scientists are agreed on this. Since Hinduism is generally recognised to be as much a social system as a religion, its social framework embodying caste rituals has governed the lives of the majority of Indians for hundreds of years. Having deep roots in tradition and enjoying sanction in all religious literature belonging to the pre‐British era, caste has been the dominant principle of social organisation since ancient times. In fact, barring the recent past, Hinduism has always been identified in the minds of most Indians with caste observances. Writes R.C. Zaehner: “…until a century or so ago the acceptance of the caste system was considered by the orthodox to be the sole effective criterion of whether one was or was not a Hindu. In matters of belief it mattered not at all whether one believed in one god or many, or not at all, nor did it much matter on how one interpreted ‘liberation’ or whether one rejected it outright so long as one fulfilled the duties prescribed for one's caste.”