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This paper aims to study the influence of reflow atmosphere and placement accuracy on the solderability of 01005 capacitor/SAC305 solder joints.

The 01005 capacitors were mounted on OSP-coated pads, and the samples were fabricated in four different atmospheres, i.e. 200 ppm O₂/N₂, 1,000 ppm O₂/N₂, 3,000 ppm O₂/N₂ and air. After the reflow process, visual inspection and X-ray detection were carried out to examine the solder joint shapes and possible defects. Some of the samples fabricated in different conditions were cross-sectioned and the solder joint microstructures were analyzed. On the other hand, besides placing the components on their normal pad positions, a 50 per cent offset of the x-axis (long axis) or y-axis (short axis) was introduced into the chip mounter programs to evaluate the 01005 capacitor’s assembly sensitivity to placement accuracy. The process-induced defects were investigated.

Experimental results indicated that an N₂-based protective atmosphere was necessary for 01005 type assembly, as it could obviously improve the 01005 solder joint quality, compared with the air condition. The protective atmosphere had little effect on the appearance, quality and microstructure of solder joints when the oxygen concentration was below 3,000 ppm. But a very low oxygen concentration could increase the risk of tombstoning defects for the assembly process. The N₂-based protective atmosphere containing 1,000-2000 ppm O₂ was acceptable and appropriate for the assembly of tiny components.

The results of this work provide a set of reflow process parameters and recommendations for 01005 size component assembly in manufacturing.

This chapter compares interdisciplinary research that engages genomic science from economics, political science, and sociology. It describes, compares, and evaluates concepts and research findings from new and rapidly developing research fields, and develops a conceptual taxonomy of the social environment.

A selection of programmatic and empirical articles, published mostly since 2008 in leading economics, political science, and sociology journals, were analyzed according to (a) the relationship they pose between their discipline and genomic science, (b) the specific empirical contributions they make to disciplinary research questions, and (c) their conceptualization of the “social environment” as it informs the central problematique of current inquiry: gene-environment interaction.

While all three of the social science disciplines reviewed engage genomic science, economics and political science tend to engage genomics on its own terms, and develop genomic explanations of economic and political behavior. In contrast, sociologists develop arguments that for genomic science to advance, the “environment” in gene-environment interaction needs better theorization and measurement. We develop an approach to the environment that treats it as a set of measurable institutional (rule-like) arrangements, which take the forms of neighborhoods, families, schools, nations, states, and cultures.

Interdisciplinary research that combines insights from the social sciences and genomic science should develop and apply a richer array of concepts and measures if gene-environment research – including epigenetics – is to advance.

This chapter provides a critical review and redirection of three rapidly developing areas of interdisciplinary research on gene-environment interaction and epigenetics.

The purpose of this paper is to design and develop a rotary three-dimensional (3D) printer for curved layer fused deposition modeling (CLFDM), and discuss some technical challenges in the development.

Some technical challenges include, but are not limited to, the machine design and control system, motion analysis and simulation, workspace and printing process analysis, curved layer slicing and tool path planning. Moreover, preliminary experiments are carried out to prove the feasibility of the design.

A rotary 3D printer for CLFDM has been designed and developed. Moreover, this printer can function as a polar 3D printer for flat layer additive manufacturing (AM). Compared with flat layer AM, CLFDM weakens the staircase effect and improves geometrical accuracy and mechanical properties. Hence, CLFDM is more suitable for parts with curved surfaces.

Double extruders have brought improved build speed. However, this paper is restricted to complex process planning and mechanical structures, which may lead to collisions during printing. Meanwhile, the rotation range of the nozzle is limited by mechanical structures, affecting the manufacturing capability of complex curved surfaces.

A novel rotary 3D printer, which has four degrees of freedom and double extruders, has been designed and manufactured. The investigation on the prototype has proved its capability of CLFDM. Besides, this rotary 3D printer has two working modes, which brings the possibility of flat layer AM and CLFDM.

The purpose of this paper is to understand how and why accountants who moved from accounting firms to public service adapted their identities to reduce insecurity. The literature on accountant identity highlights insecurity caused by promotion criterion to partnership, which requires accountants to win new work for their employers and leads to overtime, as a serious problem which has permeated the accounting profession. However, there have been few studies that explore whether accountants who moved to the public service, where they have stronger job security and can enjoy work-life balance, have resolved the insecurity problem, although a neoliberalism turn accompanied by New Public Management-style reforms has increased the number of accountants in public service. Therefore, the authors of the current study aim to fill this gap in the literature by exploring the identity transitions of South Korean (hereafter Korean) accountants who joined the public service.

The authors theorise the nature of the process of identity adaptation with conceptual tools from Pierre Bourdieu, such as habitus and capital, and examine whether the accountants took a “vision-of-division” or a “di-vision” strategy in the public service to secure their identity. For this purpose, the authors interviewed accountants and their non-accountant colleagues, and investigated other written sources, such as newspaper articles and business cards.

The authors found that Korean accountants in Big-4 firms dealt with the same insecurity issues as accountants in western countries and perceived public service as an attractive alternative to remove this insecurity. However, accountants who joined the public service found themselves confronted with different types of problems, such as accounting/costing work being regarded as demeaning, which made their identity insecure. Therefore, some accountants took a di-vision strategy that makes the difference between themselves and typical public servants less visible by avoiding accounting/costing work, using bureaucratic designations and de-emphasising their accounting credentials. Accountants took this strategy because the symbolic value of their accountancy qualifications grew weaker over time, due to the increase in the number of qualified accountants, and because the public service field valued bureaucratic habitus and capital more highly than those of the accountants.

From a methodological aspect, the authors collected participants’ business cards and analysed which designations/credentials they chose in order to create a certain perception. This analysis helped the authors understand how accountants work on their identity by de-emphasising accounting credentials to secure their identity in an organisational field. In a theoretical dimension, the current study argues that the symbolic capital of accounting credentials is dependent on the organisational and social context in line with Bourdieu, and, contrary to Bourdieu, on the supply and demand in the professional labour market.

Effective mass customization (MC) depends on accurately identifying customer needs and procuring appropriate components from supply base to manufacture the required product configurations in a timely manner. In essence, effective MC for a focal firm is contingent on effective supply chain management. However, extant literature is not very clear on how supply chain (SC) planning and integration activities affect MC. The purpose of this paper is to fill the gap by examining the impacts of SC-planning and SC-integration on MC.

Organizational information processing theory is used to link SC-integration with MC ability, and a link is hypothesized between SC-planning and SC-integration. The structural equation model is then analyzed using data from 262 manufacturing plants.

It is found that SC-integration fully mediates the relationship between SC-planning and MC-ability.

The SC-integration measure is from a focal manufacturer’s standpoint, rather than the standpoint of the entire SC.

The results indicate that using a SC perspective in planning activities helps a focal firm integrate with key stakeholders along the SC, which subsequently helps the firm mass customize. Practitioners should recognize the added importance of SC-planning and SC-integration if they want to mass customize.

This study provides a theoretical foundation for the relationship between SC-integration and MC. It also provides a more comprehensive conceptualization of SC-integration, which includes supplier integration, customer integration, as well as internal functional integration which was neglected in many previous studies.

This study aims to investigate the integration of blockchain technology into the food supply chain within the restaurant industry. It focuses on how blockchain can be applied to enhance transparency and trust in tracking food sources, ultimately impacting customer satisfaction.

A service design workshop (Study 1) and three between-subjects experiments (Studies 2–4) were conducted.

Results indicate that blockchain adoption significantly improves traceability and trust in the food supply chain. This improvement in turn enhances customer satisfaction through perceived improvements in food safety, quality and naturalness. This study also notes that the effects of blockchain technology vary depending on the type of restaurant (casual or fine dining) and its location (tourist destinations or residential areas).

The findings offer practical insights for restaurant owners, technology developers and policymakers. Emphasizing the benefits of blockchain adoption, this study guides decision-making regarding technology investments for enhancing customer service and satisfaction in the hospitality sector.

This research contributes novel insights to the field of technology innovation in the hospitality industry. It extends the understanding of signaling theory by exploring how blockchain technology can serve as a tool for signal transmission in restaurant food supply chains.

The purpose of this paper is to develop and test a model of the uncertainties and benefits influencing the repurchase intentions of buyers in cross-border e-commerce (CBEC).

The authors draw on the valence framework to hypothesize effects of positive valences (utilitarian benefits) along with negative valences (pre- and post-contractual uncertainties) on buyers’ repeat purchase intentions. Data were collected using an online survey from 378 international B2C buyers on a CBEC platform in China.

Results explain 51.4 percent of the variance and reveal that overall value, as determined by monetary saving, convenience and product offerings as positive valences, exerts the strongest effect on repeat purchase intention. However, negative valences remain significant, and are particularly salient for female shoppers.

The authors extend the valence theory into the study of repeat purchase behavior and contribute to much needed literature on why consumers return to repurchase from a CBEC platform.

Repeat purchase and loyalty of online consumers is essential for success of e-commerce providers. The results help online providers competing in international markets understand how buyers form repurchase intentions based on their evaluations of both value and uncertainty.

Buyer behavior in CBEC has received relatively less attention than domestic e-commerce. This paper is among the first to examine how both positive and negative valences combine to effect repurchase intention of international buyers in CBEC.

This work examines the impact of financialization and vertical integration on renter-perceived property owner effectiveness.

Based on a sample of 1,186 renters in the US, the UK and Canada, the research addresses gaps in the literature regarding the implications of financialization and vertical integration on renters.

In contrast to previous work that shows the negative implications of financialization, the results indicate that financialization is positively correlated with renter-perceived property owner effectiveness, challenging the prevailing narrative that it strictly benefits shareholders and the financial elite. Vertical integration’s effect on renter-perceived property owner effectiveness was also shown to be positive and significant, enhancing the existing vertical integration literature that has not focused on real estate. A post-hoc interaction analysis revealed the benefits of vertical integration on renter sentiment are greater among highly financialized firms.

The study offers managerial considerations for property owners seeking to enhance renter sentiment and satisfaction as well as contributes to real estate strategy and management literature.

These results are novel, as previous research has not empirically shown financialization to elicit benefits for broader stakeholder groups.

This paper aims to study the evolution of definitions of internet of things (IoT) through time, critically assess the knowledge these definitions contain and facilitate sensemaking by providing those unfamiliar with IoT with a theoretical definition and an extended framework.

164 articles published between 2005 and 2019 are collected using snowball sampling. Further, 100 unique definitions are identified in the sample. Definitions are examined using content analysis and applying a theoretical framework of five knowledge dimensions.

In declarative/relational dimensions of knowledge, increasing levels of agreement are observed in the sample. Sources of tautological reasoning are identified. In conditional and causal dimensions, definitions of IoT remain underdeveloped. In the former, potential limitations of IoT related to resource scarcity, privacy and security are overlooked. In the latter, three main loci of agreement are identified.

This study does not cover all published definitions of IoT. Some narratives may be omitted by our selection criteria and process.

This study supports sensemaking of IoT. Main loci of agreement in definitions of IoT are identified. Avenues for further clarification and consensus are explored. A new framework that can facilitate further investigation and agreement is introduced.

This is, to the authors’ knowledge, the first study that examines the historical evolution of definitions of IoT vis-à-vis its technological features. This study introduces an updated framework to critically assess and compare definitions, identify ambiguities and resolve conflicts among different interpretations. The framework can be used to compare past and future definitions and help actors unfamiliar with IoT to make sense of it in a way to reduce adoption costs. It can also support researchers in studying early discussions of IoT.

In this paper, the authors explore the relationship that slack resources and technology-mediated human capital investments can have on individuals’ entrepreneurial intentions. Focusing on human capital investments that individuals make through education and work, the authors analyze the relationship among formal online learning opportunities, informal skill development in the gig economy and entrepreneurial intentions.

Leveraging a novel dataset that merges administrative tax data with a survey of over 8,528 low- and moderate income (LMI) households, this study uses machine learning and propensity score weighting to examine the likelihood that individuals who make these technology-mediated human capital investments will have increased odds of entrepreneurial intentions when compared to similar individuals who do not make these investments.

The authors find that both partaking in online learning and working in the gig economy are significantly associated with increased odds of entrepreneurial intentions. Furthermore, through a variety of robustness and mechanism checks, the authors find that technology-mediation is an important factor in these relationships and that informal skill development and career preparation is one way in which gig employment influences entrepreneurial intentions.

As the study’s data come from a cross-sectional survey, the authors cannot make causal inferences about the relationship between online learning, gig employment and entrepreneurial intentions. Thus, future research should explore sources of longitudinal data.

This study has practical implication for individuals and policymakers that seek to increase entrepreneurship among LMI households.

Despite a wealth of research on the relationships among slack resources, technology and innovation at the firm level, there is little of this research at the individual level – especially among LMI individuals. The authors begin to fill this important gap.