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1 – 10 of over 4000A. Subramanian, R. Rathina Kumar, M. Natesan and T. Vasudevan
The efficacy of octylamine as a vapour phase corrosion inhibitor in different corrosive environments for carbon steel, copper and brass, and its biocidal action, have been…
Abstract
The efficacy of octylamine as a vapour phase corrosion inhibitor in different corrosive environments for carbon steel, copper and brass, and its biocidal action, have been examined. The protection of these metals from atmospheric corrosion using VPI (octylamine)‐impregnated paper was monitored by visual observation, weight loss measurements, polarisation scans and impedance measurements. The long‐term protection given by octylamine‐impregnated paper to these metals was examined by Stevenson’s chamber test. It was found that octylamine offered more than 80 per cent protection against atmospheric corrosion for carbon steel, copper and brass.
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Dirk C. Moosmayer, Muhammad Dan-Asabe Abdulrahman, Nachiappan Subramanian and Lars Bergkvist
Remanufacturing is the only end-of-life (EOL) treatment process that results in as-new functional and aesthetic quality and warranty. However, applying mental model theory, the…
Abstract
Purpose
Remanufacturing is the only end-of-life (EOL) treatment process that results in as-new functional and aesthetic quality and warranty. However, applying mental model theory, the purpose of this paper is to argue that the conception of remanufacturing as an EOL process activates an operational mental model (OMM) that connects to resource reuse, environmental concern and cost savings and is thus opposed to a strategic mental model (SMM) that associates remanufacturing with quality improvements and potential price increases.
Design/methodology/approach
The authors support the argument by empirically assessing consumers’ multi-attribute decision process for cars with remanufactured or new engines among 202 car buyers in China. The authors conduct a conjoint analysis and use the results as input to simulate market shares for various markets on which these cars compete.
Findings
The results suggest that consumers on average attribute reduced utility to remanufactured engines, thus in line with the OMM. However, the authors identify a segment accounting for about 30 per cent of the market with preference for remanufactured engines. The fact that this segment has reduced environmental concern supports the SMM idea that remanufactured products can be bought for their quality.
Research limitations/implications
A single-country (China) single-brand (Volkswagen) study is used to support the conceptualised mental models. While this strengthens the internal validity of the results, future research could improve the external validity by using more representative sampling in a wider array of empirical contexts. Moreover, future work could test the theory more explicitly.
Practical implications
By selling cars with remanufactured engines to customers with a SMM that values the at least equal performance of remanufactured products, firms can enhance their profit from remanufactured products. In addition, promoting SMM enables sustainable business models for the sharing economy.
Originality/value
As a community, the authors need to more effectively reflect on shaping mental models that disconnect remanufacturing from analogies that convey inferior quality and performance associations. Firms can overcome reduced utility perceptions not only by providing discounts, i.e. sharing the economic benefits of remanufacturing, but even more by increasing the warranty, thus sharing remanufacturing’s performance benefit and reducing consumers’ risk, a mechanism widely acknowledged in product diffusion but neglected in remanufacturing so far.
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Mohammad Adil Dar, N. Subramanian, Manmohan Gupta Baniya, M. Anbarasu, Hermes Carvalho and A.R. Dar
The purpose of this paper is to discuss the performance of efficient cold-formed steel (CFS) sections in building a truss system. A comparative study was performed comparing…
Abstract
Purpose
The purpose of this paper is to discuss the performance of efficient cold-formed steel (CFS) sections in building a truss system. A comparative study was performed comparing trusses built with cold-formed and hot-rolled sections.
Design/methodology/approach
Medium-scale specimens were fabricated and tested under monotonic loading. Closed CFS sections (tubular sections) were adopted as compression members of the truss, against the open sections (angle sections) in the hot-rolled steel truss. While as open sections (angle sections) were adopted as tension members in both these cases, the performance assessment was made on the basis of the peak loads carried by the trusses, the vertical deflections and the failure modes exhibited.
Findings
The results of this study indicated that the overall strength, strength-to-weight ratio and overall convenience in terms of cost and fabrication, in the CFS truss was better than that of the hot-rolled one. Also, the judicious utilization of steel which has limited reserves can be achieved.
Originality/value
Cold-formed and hot-rolled sections are widely used in the steel structures. There are advantages and disadvantages in using each of these configurations, discussed in this work. The advantages are widely known by the scientific community; however, few studies are developed with the purpose of quantifying the gains of each solution. Thus, this work emerges with great innovation, with regard to the experimental evaluation of the trusses' behavior composed of different structural sections.
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Organisational innovativeness is a broad concept involved in a firm’s proclivity to innovate. As such, widely varying conceptualisations and operationalisations of this construct…
Abstract
Organisational innovativeness is a broad concept involved in a firm’s proclivity to innovate. As such, widely varying conceptualisations and operationalisations of this construct appear to be the main cause of major deficiencies in the research of organisational innovativeness determinants. This article suggests a shift in emphasis from organisational to product innovativeness. After defining this concept, it selectively addresses how the investigation of product innovativeness as a dependent variable could contribute to further research and theory development. The benefits of such an investigation are far from restricted to the recommendations made herein. However, such recommendations are meant to intrigue scholars into conducting similar investigations on product innovativeness, a rather overlooked aspect of organisational innovativeness.
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Abhijeet Bag, Sarbapriya Ray and Mihir Kumar Pal
In India, economic reforms adopted in 1991 in form of LPG (Liberalization-Privatization-Globalization) removed numerous barriers to grow and offered opportunities to improve…
Abstract
In India, economic reforms adopted in 1991 in form of LPG (Liberalization-Privatization-Globalization) removed numerous barriers to grow and offered opportunities to improve productivity, particularly, for the manufacturing sector. But the rationale that manufacturing sector acted as main contributor to country's economic growth via GDP growth (called “engine of growth”) for a long time in India has been challenged now a day. The growing significance of the services sector across the world exhibits that at the present time, the services sector could become the new engine of economic growth in developing economies like India. The present study seeks to bring to light whether manufacturing is acting as an “engine of growth” at inter-state level in India or not and the cross section result indicates that potency of manufacturing growth and agricultural growth is gradually slowing down as a conforming part of economic growth and service sector is taking leading position in accelerating engine of growth in India.
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Moren Levesque, Phillip Phan, Steven Raymar and Maya Waisman
We study the events that motivate CEOs to underinvest in R&D long-term projects (CEO myopia). Based on the existing literature in earnings management and agency theory, myopia is…
Abstract
We study the events that motivate CEOs to underinvest in R&D long-term projects (CEO myopia). Based on the existing literature in earnings management and agency theory, myopia is likely to become more problematic under five circumstances: when the CEO nears retirement (the CEO horizon problem), R&D projects have very long time horizons (the project horizon problem), the firm’s financial health is deteriorating (the cover-up problem), ownership structure is heavily weighted toward insider owners (minority owner oppression problem), and when the threat of hostile takeover increases (the entrenchment problem). We setup a dynamic simulation model in which rational CEOs maximize the total value of their bonus compensation over their tenure. Our findings related to the five circumstances are consistent with the extant literature. However, we found an unexpected stable, nonlinear (inverted U-shaped) relationship between CEO tenure and R&D investment. We discuss the theoretical implications of our model and offer suggestions for future research.
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Alicia Robb and Robert Seamans
We extend theories of the firm to the entrepreneurial finance setting and argue that R&D-focused start-up firms will have a greater likelihood of financing themselves with equity…
Abstract
We extend theories of the firm to the entrepreneurial finance setting and argue that R&D-focused start-up firms will have a greater likelihood of financing themselves with equity rather than debt. We argue that mechanisms which reduce information asymmetry, including owner work experience and financier reputation, will increase the probability of funding with more debt. We also argue that start-ups that correctly align their financing mix to their R&D focus will perform better than firms that are misaligned. We study these ideas using a large nationally representative dataset on start-up firms in the United States.
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A. Subramanian, P. Rajendran, N. Natesan, K. Balakrishnan and T. Vasudevan
Atmospheric corrosion of mild steel, copper and zinc was studied in SO2 environment under dynamic flow conditions by weight loss measurements, and their corrosion prevention by…
Abstract
Atmospheric corrosion of mild steel, copper and zinc was studied in SO2 environment under dynamic flow conditions by weight loss measurements, and their corrosion prevention by the use of volatile corrosion inhibitors such as cyclohexylamine (CHA) and dicyclohexylamine (DCHA) is discussed. These studies assume importance as SO2 is one of the dominant pollutants in the atmosphere and more so in industrial belts affecting the stability of metal articles to a greater extent.
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K. Somasundara Vinoth, R. Subramanian, S. Dharmalingam and B. Anandavel
The purpose of this research paper is to find the optimum parameters, namely, the sliding speed, applied load and percentage of silicon carbide particles (SiCp), under which…
Abstract
Purpose
The purpose of this research paper is to find the optimum parameters, namely, the sliding speed, applied load and percentage of silicon carbide particles (SiCp), under which AlSi10Mg/SiCp composites experience minimum wear.
Design/methodology/approach
Wear rate (WR) of AlSi10Mg, AlSi10Mg/10SiC and AlSi10Mg/20SiC was measured using pin-on-disk equipment according to ASTM G99 standards. Response surface method was used to design the experiments, model and analyze the tribological behaviour. Tests were conducted as per Box–Beheken design of experiments. The wear mechanisms were observed using scanning electron microscope. Genetic algorithm was used to find the optimum parameters for minimum WR.
Findings
Wear mechanisms underwent changes with variation in applied load, sliding speed and per cent SiCp. An optimum wear condition was obtained when the process parameters, namely, the sliding speed, applied load and percentage of SiCp, were at 4 m/s, 10 N and 20 per cent, respectively. Combined GA-RSM approach was successfully used to predict the minimum WR condition of AlSi10Mg/SiCp composites with an accuracy of 94 per cent.
Originality/value
The tribological behaviour of AlSi10Mg/SiCp composites has been investigated in detail. A statistical WR model is proposed. This paper provides an optimum condition to design the tribo contact between steel and AlSi10Mg/SiCp composites.
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The police in India do not meet the standards of legitimacy. This chapter examines a significant question – why in the largest democracy police are deemed illegitimate and…
Abstract
Purpose
The police in India do not meet the standards of legitimacy. This chapter examines a significant question – why in the largest democracy police are deemed illegitimate and untrustworthy?
Methodology/approach
The chapter draws from the literature about police role and functioning in India. Data from the Crime in India and other publications is utilized to assess the nature of policing and interactions with the citizens. Since the police derive their legitimacy from that of the government, the nature of politics and its impact upon the police organization is assessed from various reports and publications.
Findings
There is significant evidence to suggest that in India, citizens distrust the police and fear the officers while the police too remain mired in corruption, brutality, violating the rights of citizens. Two arguments are made to explain the reasons for the illegitimacy of police system: first, that the police model is incompatible with the plural and diverse democratic framework of the country. Second, that the political leaders have vitiated the democratic polity itself, preventing the growth of independent public institutions that could hold them accountable. All these have serious consequences for the health and vitality of the largest democracy in the world.
Originality/value
This chapter provides evidence about incompatibility of colonial policing with liberal democratic order and argues that political leadership is largely responsible for the illegitimacy of police and other public institutions.
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