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The purpose of this paper is to present study of creep strain rates in a circular cylinder under temperature gradient materials by using Seth’s transition theory.

Seth’s transition theory is applied to the problem of creep stresses and strain rates in a cylinder under temperature gradient materials by finite deformation. Neither the yield criterion nor the associated flow rule is assumed here. The results obtained here are applicable to compressible materials. If the additional condition of incompressibility is imposed, then the expression for stresses corresponds to those arising from Tresca yield condition.

Thermal effect increases the values of axial stress at the external surface of a circular cylinder for incompressible material as compared to compressible materials. With the introduction of thermal effects, the maximum value of strain rates occurs at the external surface for incompressible material as compared to the compressible materials.

The model proposed in this paper is used commonly either as pressure vessels intended for storage industrial gases or media transportation of high pressurized fluids and the design of turbine rotors.

The main fast moving consumer goods (FMCG) retail formats that customers engage with in India are Kirana stores, neighborhood convenience stores (NCS), supermarkets and online retailers. However, there has been less research done on the variables or antecedents that could favorably affect consumers' engagement with these FMCG retail formats. To improve retail practices, this study looks at how female consumers perceive the performance of FMCG retail formats on different antecedents of consumer engagement. The status of consumer engagement with FMCG retail formats was also analyzed.

The present study used exploratory as well as descriptive research design. Previous studies were analyzed to identify the antecedents of consumer engagement. A structured questionnaire was used to collect the primary data from 400 female respondents of two major urban cities in north-western India. The descriptive analysis and one-way ANOVA test were performed to analyze the data.

Kirana stores’ performance on most of the antecedents was not satisfactory. Supermarkets and online retailers performed better on all antecedents. Customer marketing orientation and experiential marketing were the antecedents that required more attention from Kirana stores, NCS and supermarkets. Consumer engagement with online retailers was highest, whereas consumer engagement with Kirana stores was least.

This study offers a comprehensive examination of the antecedents of consumer engagement and consumer engagement with FMCG retail, which no prior research has studied in the context of FMCG retail businesses.

The purpose of this paper is to present study of thermal creep stresses and strain rates in a circular disc with shaft having variable density by using Seth’s transition theory.

Seth’s transition theory is applied to the problem of thermal creep transition stresses and strain rates in a thin rotating disc with shaft having variable density by finite deformation. Neither the yield criterion nor the associated flow rule is assumed here. The results obtained here are applicable to compressible materials. If the additional condition of incompressibility is imposed, then the expression for stresses corresponds to those arising from Tresca yield condition.

Thermal effect increased value of radial stress at the internal surface of the rotating disc made of incompressible material as compared to tangential stress and this value of radial stress further much increases with the increase in angular speed as compared to without thermal effect. Strain rates have maximum values at the internal surface for compressible material.

The model proposed in this paper is used in mechanical and electronic devices. They have extensive practical engineering application such as in steam and gas turbines, turbo generators, flywheel of internal combustion engines, turbojet engines, reciprocating engines, centrifugal compressors and brake disks.

The learning outcomes are as follows: identify and evaluate the impact of risk factors for health-care organizations during crisis; evaluate the role of different organizational factors in building resilient health-care organizations; define organizational resilience in a health-care context; and apply the effect-strategy-impact resilience framework.

September 2022 found Ranjan Thakur, the Hospital Director at Manipal Hospital, Jaipur (MHJ) reflecting on MHJ’s resilience toward future health-care crises. MHJ was established in the capital city Jaipur of the Indian state of Rajasthan in 2014, as a 225-bed multispecialty unit of the nationally renowned Manipal Health Enterprises Ltd. As the Hospital Director, Thakur had been responsible for navigating his team and the hospital through the multiple health-care related challenges exacerbated by the multiple waves of the Covid-19 pandemic in a large Indian state with a sizable rural and semiurban population. Though Thakur and his team of doctors had worked through the vulnerabilities of their health-care ecosystem, mapping the risks and mitigating the same, Thakur asked himself if they had done enough. He wondered how a health-care institution such as theirs could sustain effective health-care delivery during future crises situations to deliver high-quality health care to the vulnerable communities. Had they effectively mapped MHJ’s vulnerabilities and built resilience into the hospital’s functioning? The backdrop of the case is public health in the state of Rajasthan (Jaipur), and the case is rich in detailing social factors such as behavior issues of patients, doctors and nurses; operational factors such as standardization of treatment and standard operating procedures, availability of resources, clinical concerns; leadership and management of the hospital through the pandemic. This case can be used by instructors to teach organizational resilience building in the health-care context.

Graduate- and executive-level courses in managing change during crisis in health-care context; health-care management/leadership.

Teaching notes are available for educators only.

CSS 7: Management Science.

The purpose of current study deals with the development and wear testing of jute and cotton fiber reinforced with nano fly ash-based epoxy composites. Performance of waste cotton fabric nano hybrid composites are compared with waste jute fabric nano hybrid composites.

Basic hand layup technique was used to develop composites. To optimize the parameters and design of experiments, Taguchi design was implemented to test wear rate and co-efficient of friction as per ASTM standards. Performance of waste cotton fabric nano hybrid composites is compared with waste jute fabric nano hybrid composites.

Result shows that nano fly ash lowers the wear rate and co-efficient of friction in developed composites. Findings reveals that hybrid composites of waste jute Fabric with 3 Wt.% of nano fly ash performed best amongst all composites developed. Morphology of nano composites worn out surfaces are also analyzed through SEM.

Practically, textile waste, i.e. jute, cotton and nano fly ash (thermal power plant) all wastes, is used to develop composites for multi-function application.

Wastes are reused and recycled to develop epoxy-based composites for sustainable structures in aviation.

To the best of the authors’ knowledge, nano fly ash and jute, cotton combination is used for the first time to develop and test for wear application.

This study investigates the performance of Indian states based on infrastructural investment in social and economic sectors using data envelopment analysis (DEA). Most of the studies in the literature are based on how different elements of infrastructure such as transport, energy, education, healthcare system affect the economy of different countries/regions. In this study, we consider these elements under two different sub-systems, namely, social and economic infrastructure and measure the cooperative efficiency for competitive growth.

A four-stage DEA approach is proposed for the analysis of a sample of 28 Indian states for the years 2011, 2013 and 2015 under consideration. First stage calculates the per capita GDP contribution, while stage-2 evaluates the efficiency of investments in social infrastructure followed by the efficiency analysis in economic infrastructure in stage-3. Finally, fourth stage evaluates the co-operative efficiency for the overall performance.

The findings of three different cases based on population sizes, viz., highly populated, moderately populated and less populated regions suggest that the government can identify the top and poor performers. It also studies the variations in efficiency tally of states using Malmquist indices.

This kind of study will vigilant government and local authorities on the investments made in all the states for social and economic infrastructure and establish a competitive environment among state governments to compete for improved infrastructural growth.

This study is the first of its kind in developing countries like India, which focuses on efficiency analysis using DEA based on two sub-sectors of social–economic infrastructural investments.

This study aims to determine the effect of different friction stir welding (FSW) parameters on mechanical and metallurgical characteristics of aviation-grade AA8090 alloy joints.

Response surface methodology with central composite design is used to design experiments. The mechanical and microstructure characteristics of the weld joints have been studied through a standardized method, and the influence of threaded pins on the joint microstructure has also been assessed.

From a desirability strategy, the optimum parameters setting of the friction stir welding was the tool rotational speed (TRS) of 800, 1,100 and 1,400 rpm; tool traverse speed (TTS) of 20, 30 and 40 mm/min; and tilt angle 1°, 2° and 3° with different tool pin profiles, i.e. cylindrical threaded (CT), square threaded and triangular threaded (TT), for achieving the maximum tensile strength, yield strength (YTS) and % elongation as an output parameter. The TRS speed was the highest weld joint characteristics influencing parameter. Peak tensile strength (378 MPa), percentage elongation (10.1) and YTS (308 MPa) were observed for the optimized parametric value of TRS-1,400, TTS-40 mm/min and TA (3°) along with CT pin profile. Microstructure study of the welded surface was achieved by using scanning electron microscope of output parameters. When the tool rotation speed, tool transverse speed, tilt angle and tool profile are set to moderately optimal levels, a mixed mode of ductile and brittle fracture has been seen during the microstructure analysis of the welded joint. This has been aided by the material’s plastic deformation and the small cracks surrounding the weld zone.

From the reported literature, it has been observed that limited work has been reported on aviation-grade AA8090 alloys. Further thermal behavior of welded joints has also been observed in this experimental work.

This present research aims to identify the optimum process parameters for enhancing geometric accuracy in single-point incremental forming of aviation-grade superalloy 625.

The geometric accuracy has been measured in terms of half-cone-angle, concentricity, roundness and wall-straightness errors. The Taguchi Orthogonal-Array L9 with desirability-function-analysis has been used to achieve improved accuracy.

To achieve maximum geometric accuracy, the optimum setting having a tooltip diameter of 10 mm, a step-size of 0.2 mm and a tool rotation speed (TRS) of 900 RPM has been derived. With this setting, the half-cone-angle accuracy increases by 42.96%, the concentricity errors decrease by 47.36%, the roundness errors decline by 45.2% and the wall straightness errors reduce by 1.06%.

Superalloy 625 is a widespread nickel-based alloy, finding enormous applications in aerospace, marine and chemical industries.

It has been recommended to increase TRS, reduce step-size and use moderate size tooltip diameter to enhance geometric accuracy. Step-size has been found to be the governing parameter among all the parameters.

Reverse mentoring and job crafting are innovative, employee-driven job resources that can lead to positive organizational outcomes. The purpose of this paper is to explore the role of work engagement in mediating the association of these resources with work performance and work withdrawal behavior.

Hypotheses were tested using structural equation modeling on data obtained from 369 software developers in India.

Findings demonstrate that reverse mentoring and job crafting are positively related to work engagement, which, in turn, increase performance and decreases work withdrawal behaviors. Work engagement partially mediates the association of job crafting with both outcomes. In contrast, work engagement fully mediates the relationship between reverse mentoring and withdrawal behavior and partially mediates the relationship between reverse mentoring and work performance.

This study is a cross-sectional, survey design in the understudied technical industry in India, which may limit generalizability. However, the authors also connect the previously unrelated literatures on reverse mentoring and work engagement and develop a scale for use in future reverse mentoring studies.

This study provides evidence to support practitioners in implementing resources for reverse mentoring and job crafting to increase work engagement among employees and subsequent positive outcomes.

Organizations can support reverse mentoring and job crafting as cost effective employee development tools. The research focuses on the mentors, who tend to be the less experienced and younger counterparts in a reverse mentoring pair and a critical part of the workforce for the growing IT industry.