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The purpose of this paper is to determine the feasibility of identifying the creep rupture of reactor cladding tubes using acoustic emission technique (AET).

The creep rupture tests were carried out by pressuring stainless steel capsules upto 6 MPa at room temperature and then heating continuously in a furnace upto rupture. The acoustic emission (AE) signals generated during the creep rupture tests were recorded using a 150 kHz resonant sensor and analysed using AE Win software.

When rupture occurs in the pressurized capsule tube representing the cladding tube, AE sensor attached to a waveguide captures the mechanical disturbance from the capsule and these data can be advantageously used to identify the creep rupture event of the cladding tube.

The creep rupture data of fuel clad tube is very important in design and for smooth operation of nuclear reactors without fuel pin failure in reactors.

AE is an advanced non-destructive evaluation technique. This technique has been successfully applied for on-line monitoring of creep rupture of the reactor cladding tube which otherwise could be detected by thermocouple readings only.

The purpose of this paper is to present the results of acoustic emission (AE) and ultrasonic inspection of two H₂S storage tanks carried out in a heavy water plant, in order to characterize point type defects observed during earlier ultrasonic inspection and to ensure that these defects are not growing during hydrotesting of the tanks.

Using multiple AE sensors and AE source location methodology, the entire tank could be covered to detect and locate any dynamic sources of AE associated with local plastic deformation and/or growing discontinuities from any part of the tank during the hydrotest. For confirmation of the results obtained by AE, ultrasonic inspection on the tanks and on virgin plates from which the tanks were manufactured, were carried out.

The AE signals generated during first pressurisation are attributed to the micro yielding of the material of the tanks. A few scattered AE events were observed at a few locations during the hydrotesting of the tanks and these are due to structural and rubbing noise. During hold periods and repressurising cycle of the hydrotesting, no detectable AE events were observed and this confirmed the absence of any growing discontinuity in the tanks during the hydrotesting. Ultrasonic inspection on the tanks and on virgin plates confirmed that the point type defects detected are manufacturing defects and not formed during service life.

The combined results from AE and ultrasonic techniques confirmed the structural integrity of the tanks and ensured their healthiness for continued operation.

The paper brings out the use of AE and ultrasonic techniques for monitoring hydrotesting of storage tanks of a heavy water plant. The storage tanks where point type defect indications were reported during previous ultrasonic inspection and whether these defects are growing during hydrotesting of the tanks or not, were required to be known before the tanks are put in to further service. AE signals collected during pressurising and repressurising cycles of the hydrotest and subsequent inspection by ultrasonic confirmed the vessels to be free from growing defects during the hydrotest and provided baseline data for future inspection.

Development of non‐destructive methodology for detection of arc strike, spatter and fusion type of welding defects which may form on steam generator (SG) tubes that are in close proximity to the circumferential shell welds. Such defects, especially fusion‐type defects, are detrimental to the structural integrity of the SG. This paper aims to focus on this problem.

This paper presents a new methodology for non‐destructive detection of arc strike, spatter and fusion type of welding defects. This methodology uses remote field eddy current (RFEC) ultrasonic non‐destructive techniques and K‐means clustering.

Distinctly different RFEC signals have been observed for the three types of defects and this information has been effectively utilized for automated identification of weld fusion which produces two back‐wall echoes in ultrasonic A‐scan signals. The methodology can readily distinguish fusion‐type defect from arc strike and spatter type of defects.

The methodology is unique as there is no standard guideline for non‐destructive evaluation of peripheral tubes after shell welding to detect arc strike, spatter and fusion type of welding defects.

This paper aims to predict the traffic and helps to find a solution. Unpredictable traffic leads more vehicles on the road. The result of which is one of the factors that aggravate traffic congestion. Traffic congestion occurs when the available transport resources are less when compared to the number of vehicles that share the resource. As the number of vehicles increases the resources become scarce and congestion is more.

The population of the urban areas keeps increasing as the people move toward the cities in search of jobs and a better lifestyle. This leads to an increase in the number of vehicles on the road. However, the transport network, which is accessible to the citizens is less when compared to their demand.

The demand for resources is higher than the actual capacity of the roads and the streets. There are some circumstances, which will aggravate traffic congestion. The circumstances can be the road condition (pot holes and road repair), accidents and some natural calamities.

There is a lot of research being done to predict the traffic and model it to find a solution, which will make the condition better. However, still, it is an open issue. The accuracy of the predictions done is less.

This paper aims to explore the drivers and barriers in the transition of the social responsibility agenda of large, emerging economy (EE) firms from non-strategic philanthropy to strategic corporate sustainability. This study also suggests a strategy that such firms may adopt for obtaining the desired corporate social responsibility (CSR) manifestation.

The paper follows an in-depth case study approach of a large, family-managed Indian firm in a pollutant industry – Sudarshan Chemicals. The article is based on direct observation and in-depth interviews with key stakeholders, namely, senior management, employees and the local community members (villagers) in the company’s plant in Maharashtra.

The study exposes a lack of alignment between firm size (large) and firm CSR manifestation (small) as the key challenge that EE firms face in transforming their social responsibility agenda. Stuck in the mould of non-strategic corporate philanthropy, even large EE companies are not exposed to the three essential elements of the Western conceptualization of CSR, namely, stakeholder pressure, environmental concerns and integration into core business. Sudarshan’s small-firm CSR orientation can be seen as symptomatic of most Indian companies which are family-led, family-managed businesses.

Faced with strong drivers to incorporate CSR, EE firms can strategize to leap-frog from philanthropy to corporate sustainability through obtaining the desired CSR manifestation.

The significance of this paper lies in the “on the ground”, detailed and empirical study of the drivers and challenges faced by a large Indian company, as it proactively sought to transition from the philanthropy orientation towards strategic CSR/sustainability. The paper identifies the major challenge large, Indian corporates are likely to face going forward, as they respond to drivers in a globalized business environment.

India is the first country to have mandated compulsory corporate social responsibility (CSR) spends through changes in its legislative framework. Focus has thus shifted from the “why” to the “how” of CSR and, therefore, a shift in the “locus” of CSR responsibility from the “influencer” chief executive officer toward the “implementer” CSR professionals. The purpose of this paper is to study the role of management education in developing individual competencies among the implementers and impacting effective CSR implementation.

This paper, using a case study design, studies the role of management education in developing individual competencies among the implementers and impacting effective CSR implementation. Building on theoretical frameworks, this paper carries out an exploratory research of an Indian business school’s management education program for development practitioners. It uses qualitative inputs gathered from relevant stakeholders of the program to understand the role of management education in facilitating the paradigm shift in CSR in the Indian context.

The paper finds that the program has impacted outcomes at three levels, namely through developing key individual CSR-related competencies; impacting participants’ professional performance; and organizational impact in effective CSR implementation.

The case study provides a roadmap to business schools for designing and implementing programs for CSR professionals.

Extant research in the Indian context is silent on key competencies required for CSR implementation and also on the role of management education in developing the same. Such competencies can ensure the efficiency of the expected large CSR spends by private corporates under the new legal requirements and alter the country’s social development path.

The purpose of this paper is to examine the effect of reciprocating compressor speeds and valve conditions on the roor-mean-square (RMS) value of burst acoustic emission (AE) signals associated with the physical motion of valves. The study attempts to explore the potential of AE signal in the estimation of valve damage under varying compressor speeds.

This study involves the acquisition of AE signal, valve flow rate, pressure and temperature at the suction valve of an air compressor with speed varrying from 450 to 800 rpm. The AE signals correspond to one compressor cycle obtained from two simulated valve damage conditions, namely, the single leak and double leak conditions are compared to those of the normal valve plate. To examine the effects of valve conditions and speeds on AE RMS values, two-way analysis of variance (ANOVA) is conducted. Finally, regression analysis is performed to investigate the relationship of AE RMS with the speed and valve flow rate for different valve conditions.

The results showed that AE RMS values computed from suction valve opening (SVO), suction valve closing (SVC) and discharge valve opening (DVO) events are significantly affected by both valve conditions and speeds. The AE RMS value computed from SVO event showed high linear correlation with speed compared to SVC and DVO events for all valve damage conditions. As this study is conducted at a compressor running at freeload, increasing speed of compressor also results in the increment of flow rate. Thus, the valve flow rate can also be empirically derived from the AE RMS value through the regression method, enabling a better estimation of valve damages.

The experimental test rig of this study is confined to a small pressure ratio range of 1.38–2.03 (free-loading condition). Besides, the air compressor is assumed to be operated at a constant speed.

This study employed the statistical methods namely the ANOVA and regression analysis for valve damage estimation at varying compressor speeds. It can enable a plant personnel to make a better prediction on the loss of compressor efficiency and help them to justify the time for valve replacement in future.

Part A – to identify the challenges of inducting and nurturing next-gen leaders, to outline the building blocks for the successful induction of the next generation into the family business and to spell the importance of mentoring conversations as a tool for successful induction in the family business. Part B – to define the basic tenets of effective communication-goal setting, planning and action using the goals, plans and action framework, to build a “listening” environment through understanding the hearing, understanding, remembering, interpreting, evaluating, and responding mode and to relate the importance of “questioning” in diagnosing a problem and reading both verbal and non-verbal cues in communication.

The two-part case describes the role of communication amongst young family business scions and a mentor’s role in shaping such communication. Part A traces the induction of Aditya Gandhi, a fourth-generation scion of Gandhi Gems and Jewels, a 110-year old Indian family business dealing in precious gems and jewels. It deals with the challenges of mentoring and successful induction of the next-generation into family business Part B of the case describes the communication between Aditya Gandhi and the proprietor of Gandhi Gems and Jewels’ key client, Ghanshyam Das. It deals with the tenets of effective communication as should be understood by young next-generation family members.

The case can be used in an executive programme for owners of family businesses or in an undergraduate or post-graduate programme in general business administration or family business management.

Teaching Notes are available for educators only.

CSS 11: Strategy.

The study aspires to enhance comprehension of the intricate interplay between supply chain management (SCM) and resilience in family businesses, thereby offering valuable insights to managers and policymakers endeavouring to foster resilience in uncertain environments.

Commencing from the premise that family businesses (FBs) prioritize the preservation of socio-emotional wealth (SEW) when formulating strategic decisions, this study endeavours to advance understanding of supply chain practices adopted by FBs and their direct impact on resilience during crisis situations or economically challenging periods. Through an exploratory case study of nine FBs, the present research reveals four pivotal strategies in SCM that contribute to their resilience: (i) reorganization of inventory management; (ii) cultivating close relationships with suppliers; (iii) emphasizing product quality and customer retention; and (iv) implementing cost reduction measures to bolster resilience. The aim of the study is to provide an in-depth understanding of the intricate interplay between SCM and resilience in FBs, thereby offering valuable insights to managers and policymakers endeavouring to foster resilience in uncertain environments.

Our approach offers a theoretical framework for SCM aligned with prior research on the interplay between characteristics of family businesses and resilience strategies. Furthermore, this paper illustrates how factors such as the emphasis on high-quality products and services by family businesses contribute to achieving non-economic objectives that owners adopt to reconcile family and business needs, creating intrinsic added value for the company. It reveals various challenges in SCM, including inventory organization changes, supplier closures and the significance of customer retention. Family businesses are implementing product and technology enhancements and leveraging digitization to enhance supply chain processes.

This paper contributes significantly to the field of FBs by highlighting the crucial role of SCM in enhancing business resilience during crises. It empirically examines how the SEW characteristics of FBs influence the reconfiguration of their supply chains to enhance resilience, presenting a theoretical model for this context. Our theoretical framework employs an SEW perspective to elucidate how FBs respond to the challenges posed by the COVID-19 pandemic by adapting their SCM processes to safeguard their social and emotional legitimacy, organizational visibility and reputation. These adaptations gain particular relevance during crises or turbulent conditions, potentially leading to alterations in how FBs formulate their supply chain strategies and manage supply chain-related processes.

In this chapter, Mousumi De presents the principles and implications of CRT in the context of Asian and Asian American experiences including the perspective, features, strategies, and new directions on how to facilitate the preparation of teacher candidates and work with all teachers to understand the complexity of the Asian and Asian American identity, their racialized experiences, and their sociohistorical, transnational contexts that continue to influence their lived experiences. This chapter highlights the important issues and challenges facing Asians and Asian Americans that have been camouflaged by their stereotypical treatment as model minorities. It also shares the work of many scholars on approaches for promoting diversity and inclusion, such as implementing anti-racist, anti-oppressive, and inclusive history curricula, cultural citizenship education, teaching for social justice, and culturally responsive and culturally sustaining teaching for addressing the marginalization of Asians and Asian Americans.