Shanell Sanchez, Kelly Szott and Emma Ryan
Purpose – This chapter provides an overview of the importance of seeing personal troubles as public issues when examining the mass incarceration of people of color, specifically…
Abstract
Purpose – This chapter provides an overview of the importance of seeing personal troubles as public issues when examining the mass incarceration of people of color, specifically Black Americans in the United States. A response to the mass incarceration of Black Americans unrooted in a sociological understanding may lead to victim-blaming. This chapter demonstrates how personal problems are often intertwined with public issues. The chapter concludes with a discussion on the importance of shifting blame away from the victim and appropriately addressing systemic challenges.
Methodology/approach – This chapter applies sociological theories to examine high rates of incarceration of people of color that get attributed to personal problems. The authors based the analysis on previous research and governmental reports.
Findings – Sociological theory can offer new solutions to transforming the criminal justice system to alleviate injustices in communities of color. The criminal justice system has negative consequences, but resistance to accepting new ideas perpetuates inequality and limits opportunity for social change. The authors recognize that policy changes must occur at the institutional and structural levels to expose social injustice.
Originality/value – A dearth of research examines the approach of framing personal troubles as public issues to reduce mass incarceration. The authors intend to expand the discourse on how personal troubles intersect with public issues and how the authors must examine mass incarceration as the typical response.
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Edward Shih-Tse Wang and Jia-Rong Yu
Ready-to-drink (RTD) tea beverages are widely consumed worldwide and play a prominent role in people’s daily lives, yet few studies have investigated the motivation of RTD tea…
Abstract
Purpose
Ready-to-drink (RTD) tea beverages are widely consumed worldwide and play a prominent role in people’s daily lives, yet few studies have investigated the motivation of RTD tea beverage consumers as well as their underlying attitudes and desires. The purpose of this paper is to explore why these attributes are motivational factors by focussing on the attributes of RTD tea beverage products that motivate consumers to purchase RTD tea.
Design/methodology/approach
The attribute-consequence-value model of the means-end chain approach was employed to investigate consumer motivations for purchasing RTD tea beverages. Data were collected through a qualitative face-to-face survey of 153 RTD tea beverage consumers in Taiwan.
Findings
The results indicate that consumers purchase RTD tea beverages because the taste, flavor, packaging, and ingredients (attributes) satisfy their desire to drink RTD tea and fulfill the benefits of being delicious to drink, possessing thirst-quenching properties, and possessing health-promoting properties (perceived consequences), thereby fulfilling their ideal goal of experiencing enjoyment (perceived product value).
Originality/value
The findings may serve as a reference for producers of RTD tea beverages regarding product development and marketing.
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The purpose of this study is to present a comprehensive review of the fundamental concepts and terminologies pertaining to different types of aluminium metal matrix composites…
Abstract
Purpose
The purpose of this study is to present a comprehensive review of the fundamental concepts and terminologies pertaining to different types of aluminium metal matrix composites, their joining techniques and challenges, friction stir welding (FSW) process, post-welding characterizations and basic control theory of FSW, followed by the discussions on the research reports in these areas.
Design/methodology/approach
Joining of aluminium metal matrix composites (Al-MMC) poses many challenges. These materials have their demanding applications in versatile domains, and hence it is essential to understand their weldability and material characteristics. FSW is a feasible choice for joining of Al-MMC over the fusion welding because of the formation of narrow heat affected zone and minimizing the formation of intermetallic compounds at weld interface. The goal in FSW is to generate enough thermal energy by friction between the workpiece and rotating tool. Heat energy is generated by mechanical interaction because of the difference in velocity between the workpiece and rotating tool. In the present work, a detailed survey is done on the above topics and an organised conceptual context is presented. A complete discussion on significance of FSW process parameters, control schemes, parameter optimization and weld quality monitoring are presented, along with the analysis on relation between the interdependent parameters.
Findings
Results from the study present the research gaps in the FSW studies for joining of the aluminium-based metal matrix composites, and they highlight further scope of studies pertaining to this domain.
Originality/value
It is observed that the survey done on FSW of Al-MMCs and their control theory give an insight into the fundamental concepts pertaining to this research area to enhance interdisciplinary technology exploration.
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Kamalesh Kumar, Ram Subramanian and Karen Strandholm
This study examines the scanning/strategy relationship in the context‐specific setting of the health care industry. It extends the current research on the strategy/scanning…
Abstract
This study examines the scanning/strategy relationship in the context‐specific setting of the health care industry. It extends the current research on the strategy/scanning relationship to include performance. Results confirm the moderating role played by environmental scanning activities in the strategy/performing relationship, thus providing further evidence for the contingency relationship among the environment, the organization's internal processes, and performance.
Cheng-Wei Wu and Jeffrey J. Reuer
In M&A markets, acquirers face a hold-up problem of losing the value of investments they make in due diligence, negotiations, and post-acquisition planning if targets would pursue…
Abstract
In M&A markets, acquirers face a hold-up problem of losing the value of investments they make in due diligence, negotiations, and post-acquisition planning if targets would pursue the options of waiting for better offers or selling to an alternative bidder. This chapter extends information economics to the literature on M&A contracting by arguing that such contracting problems are more likely to occur for targets with better outside options created by the information available on their resources and prospects. We also argue that acquirers address these contracting problems by using termination payment provisions to safeguard their investments. While previous research in corporate strategy and finance has suggested that certain factors can facilitate an acquisition by reducing a focal acquirer’s risk of adverse selection (e.g., signals, certifications), we note that these same factors can make the target attractive to other potential bidders and can exacerbate the risk of hold-up, thereby leading acquirers to use termination payment provisions as contractual safeguards.
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Saravanan C., Subramanian K., Anandakrishnan V. and Sathish S.
Aluminium is the most preferred material in engineering structural components because of its excellent properties. Furthermore, the properties of aluminium may be enhanced through…
Abstract
Purpose
Aluminium is the most preferred material in engineering structural components because of its excellent properties. Furthermore, the properties of aluminium may be enhanced through metal matrix composites and an in-depth investigation on the evolved properties is needed in view of metallurgical, mechanical and tribological aspects. The purpose of this study is to explore the effect of TiC addition on the tribological behavior of aluminium composites.
Design/methodology/approach
Aluminium metal matrix composites at different weight percentage of titanium carbide were produced through powder metallurgy. Produced composites were subjected to sliding wear test under dry condition through Taguchi’s L9 orthogonal design.
Findings
Optimal process condition to achieve the minimum wear rate was identified though the main effect plot. Sliding velocity was identified as the most dominating factor in the wear resistance.
Practical implications
The production of components with improved properties is promoted efficiently and economically by synthesizing the composite via powder metallurgy.
Originality/value
Though the investigations on the wear behavior of aluminium composites are analyzed, reinforcement types and the mode of fabrication have their significance in the metallurgical and mechanical properties. Thus, the produced component needs an in-detail study on the property evolution.
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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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Sakthi Sadhasivam RM, Ramanathan K., Bhuvaneswari B.V. and Raja R.
The most promising replacements for the industrial applications are particle reinforced metal matrix composites because of their good and combined mechanical properties…
Abstract
Purpose
The most promising replacements for the industrial applications are particle reinforced metal matrix composites because of their good and combined mechanical properties. Currently, the need of matrix materials for industrial applications is widely satisfied by aluminium alloys. The purpose of this paper is to evaluate the tribological behaviour of the zinc oxide (ZnO) particles reinforced AA6061 composites prepared by stir casting route.
Design/methodology/approach
In this study, AA6061 aluminium alloy matrix reinforced with varying weight percentages (3%, 4.5% and 6%) of ZnO particles, including monolithic AA6061 alloy samples, is cast by the most economical fabrication method, called stir casting. The prepared sample was subjected to X-ray photoelectron spectroscopy (XPS) analysis, experimental density measurement by Archimedian principle and theoretical density by rule of mixture and hardness test to investigate mechanical property. The dry sliding wear behaviour of the composites was investigated using pin-on-disc tribometer with various applied loads of 15 and 20 N, with constant sliding velocity and distance. The wear rate, coefficient of friction (COF) and worn surfaces of the composite specimens and their effects were also investigated in this work.
Findings
XPS results confirm the homogeneous distribution of ZnO microparticles in the Al matrix. The Vickers hardness result reveals that higher ZnO reinforced (6%) sample have 34.4% higher values of HV than the monolithic aluminium sample. The sliding wear tests similarly show that increasing the weight percentage of ZnO particles leads to a reduced wear rate and COF of 30.01% and 26.32% lower than unreinforced alloy for 15 N and 36.35% and 25% for 20 N applied load. From the worn surface morphological studies, it was evidently noticed that ZnO particles dispersed throughout the matrix and it had strong bonding between the reinforcement and the matrix, which significantly reduced the plastic deformation of the surfaces.
Originality/value
The uniqueness of this work is to use the reinforcement of ZnO particles with AA6061 matrix and preparing by stir casting route and to study and analyse the physical, hardness and tribological behaviour of the composite materials.
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Aluminium metal matrix composites are used in automotive and aerospace industries because of their high performance and weight reduction benefits. The current investigation aims…
Abstract
Purpose
Aluminium metal matrix composites are used in automotive and aerospace industries because of their high performance and weight reduction benefits. The current investigation aims to focus on the development of the stir cast aluminium-boron carbide composites with enhanced mechanical and tribological properties.
Design/methodology/approach
The aluminium-boron carbide composites are produced by stir casting process. Aluminium alloy A356 is chosen as the matrix material and three sets of composites are produced with different weight fractions of boron carbide particles. Higher particle size (63 µm) of boron carbide is chosen as the reinforcement material. Aluminium-boron carbide composites are tested for mechanical and tribological properties. The effect of process parameters like load, speed and percentage of reinforcement on the wear rate are studied using the pin-on-disc method. The interaction of the process parameters with the wear rate is analysed by DesignExpert software using RSM methodology and desirability analysis. The coded levels for parameters for independent variables used in the experimental design are arranged according to the central composite design. The worn surface of the pin is examined using a scanning electron microscope. The phases and reaction products of the composites are identified by X-ray diffraction (XRD) analysis.
Findings
Aluminium-boron carbide composites reveal better mechanical properties compared to monolithic aluminium alloys. Mechanical properties improved with the addition of strontium-based master alloy Al10Sr. The ultimate tensile strength, hardness and compressive strength increase with an increase in the reinforcement content. The wettability of the boron carbide particles in the matrix improved with the addition of potassium flurotitanate to the melt. Uniform dispersion of particles into the alloy during melting is facilitated by the addition of magnesium. Wear resistance is optimal at 8 per cent of boron carbide with a load 20 N and sliding speed of 348 RPM. The wear rate is optimized by the numerical optimization method using desirability analysis. The amount of wear is less in Al-B4C composites when compared to unreinforced aluminium alloy. The wear rate increases with an increase in load and decreases with the sliding speed. The wear resistance increases with an increase in the weight fraction of the boron carbide particles.
Practical implications
The produced Al-B4C composites can retain properties at high temperature. It is used in nuclear and automotive products owing its high specific strength and stiffness. The main applications are neutron absorbers, armour plates, high-performance bicycles, brake pads, sand blasting nozzles and pump seals.
Originality/value
Al/B4C composites have good potential in the development of wear-resistant products.