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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.

The paper aims to explore the influential path of internet marketing capabilities impacting international market performance. The paper further investigates the mitigating roles of market- and entrepreneurial-oriented behaviors and knowledge internalization in this relationship. The effect of internet use for customer management on internet marketing capabilities is also examined.

A total of 618 firms with sales in international markets were approached to participate. Data were collected from a sample of 132 Taiwanese firms and analyzed using a structural equation model.

Use of internet for customer management positively influences internet marketing capabilities. The results also support the positive impacts of internet marketing capabilities on market- and entrepreneurial-oriented behaviors. Knowledge internalization mediates the relationships between market- and entrepreneurial-oriented behaviors and international market performance.

This paper’s investigation of the role of internet marketing capability in international market performance contributes to online internationalization, strategic orientations and organizational learning theory.

Managers should focus on developing internet marketing capabilities in management culture and fostering market- and entrepreneurial-oriented behaviors to facilitate knowledge internalization for better international performance.

This paper contributes to the construction of an alternative and comprehensive mechanism to understand the influences of internet marketing capabilities on the firm’s international performance.

This study aims to explore critical success factors contributing to the selection of beneficial foreign markets by Arabian international firms.

Multiple case study method was adopted in the study, and thus, two rich-information comparative case studies were purposefully selected from Arabian large firms. Additionally, seven international market selection (IMS) decisions were examined through relying on personal interviews and archival data, and field notes as secondary data resources. Two main stages of analysis were undertaken, i.e. within and cross-case analyses.

The results showed four critical factors contributing to the selection of beneficial international markets by Arabian firms, i.e. international business experience of the selected management team, the market knowledge about the potential international markets, in-house and external consultations with international business experts and identification of a trustworthy and internationally experienced manager for the international operation.

The results have important implications to business managers by improving their foreign market selection behavior. Further, the research’s findings can assist less-experienced firms, willing to internationalize their businesses, in enhancing their decision-making process to arrive at beneficial country for their international operations.

The research findings provide significant theoretical contribution to literature review on the internationalization process of firms through addressing critical success factors in IMS decision process. Further, it provides significant methodological contributions in relation to the effectiveness of the case study approach in capturing elements of the IMS process.

Plant development and use as green corrosion inhibitors are already recognized as one of the most environmentally friendly and effective protocols. In recent years, efforts have been made to find green corrosion inhibitors as an alternative to synthetic inhibitors for metals in acid medium. This paper aims to report the investigation of use of aqueous extracts of Tamarindus Indica as green inhibitors for corrosion of metals within different circumstances.

The use of Tamarindus Indica extracts (leaves, stem, fruit pulp and fruit husk) as corrosion inhibitors for mild steel and aluminum in different mediums (HCl, H2SO4, formic acid and citric acid) at different temperatures was investigated.

The inhibitory efficiency of Tamarindus Indica extracts increases with increasing concentration and decreases with increasing temperature. Langmuir is the adsorption isotherm, and the extract (inhibitor) is a mixed-type inhibitor (physisorption and chemisorption).

Tamarindus extracts (leaves, stem, fruit pulp and fruit husk) are effective inhibitors and can be used to protect metals from corrosion at different circumstances.

To the best of the authors’ knowledge, this is the first review that discusses the use of Tamarindus Indica extracts as corrosion inhibitors for metals.