Search results

An increasing number of users join and become immersed in WeChat official accounts, but many users quit using these services as well. Nevertheless, most of the previous studies mainly focussed on the usage behavior. The purpose of this paper is to fill the gap by examining factors affecting users’ unfollow intentions for WeChat subscriptions in a Chinese context.

Structural equation modeling is used in our study. A field survey with 260 WeChat users is conducted to test the research model and hypotheses.

The results show the following interesting key findings: first, the effect of actual cost on users’ unfollow intentions is larger than the effect of opportunity cost; second, users’ unfollow intentions will decrease with the increase of users’ perceptions of information usefulness; third, the results of the control variables showed that only landing frequency has a negative effect on users’ unfollow intentions; and fourth, users’ demographic differences are also examined in regard to how they may affect users’ unfollow intentions.

First, this paper studies factors influencing users’ unfollow intentions for WeChat subscriptions from a social exchange theory perspective; the authors considered both extraneous factors and users’ internal perception factors potentially affecting users’ unfollow intentions, which has rarely been researched. Furthermore, the authors examined significant differences among users’ demographic characteristics in affecting users’ unfollow intentions. The results of the study provide a more comprehensive understanding of the influencing factors of users’ unfollow intentions.

With continuous concerning on the toxic of element Pb, Pb-free solder was gradually used to replace traditional Sn-Pb solder. However, during the transition period from Sn-Pb to Pb-free solder, mixing of Sn-Pb and Pb-free is inevitable occurred in certain products, and in China where Sn-Pb solder was still used extensively in certain areas especially. Correspondingly, understanding reliability of Sn-Pb solder joints was very important, and further studies were needed.

Thermal shock test between −55°C and 125 °C was conducted on Sn-37Pb solder bumps in the BGA package to investigate the microstructure evolution and the growth mechanism of interfacial intermetallic compound (IMC) layer. The effects of thermal shock on the mechanical property and fracture behavior of Sn-37Pb solder bumps were discussed.

Pb-rich phase was coarsened and voids were increased at first; Pb-rich phase was refined and voids were decreased secondly with the increase of thermal shock cycles; the shear strength of solder bumps was slightly decreased after thermal shock, but was back up to 73.67MPa at 2,000 cycles; interfacial IMCs of solder bumps was from typical scallop-type into smooth, the composition of IMCs was from Cu₆Sn₅ into Cu₆Sn₅ and Cu₃S_n after thermal shock with 1,500 and 2,000 cycles; 20.0 per cent of solder bumps at 1,500 cycles and 9.5 per cent of solder bumps at 2,000 cycles were failure respectively.

Compared with the board level test method, the impact shear test for the single solder bump is more convenient and economical and is actively pursued by the industries. The shear strength of solder bumps was slightly decreased after thermal shock, but was back up to 73.67 MPa at 2,000 cycles; 20.0 per cent of solder bumps at 1,500 cycles and 9.5 per cent of solder bumps at 2,000 cycles were failure.

Drawing on conservation of resources (COR) theory and the motivation-opportunity-ability (MOA) framework, this study examines how salespersons' self-monitoring and psychological capital influence sales performance.

This study uses survey data from 293 salespersons employed in China and their archival sales performance to test the hypotheses posited.

The results show that both salespersons' self-monitoring and psychological capital enhance sales performance via adaptive selling. However, these elements are primarily substitutes in influencing adaptive selling. In addition, by dividing social capital into two types (i.e. family-based social capital and customer-based social capital), the results reveal that salespersons' self-monitoring enhances family-based social capital, but not customer-based social capital. Finally, customer-based social capital, but not family-based capital, improves sales performance.

This paper extends the literature on sales force management, which examines various psychological traits and their influences on sales performance. While self-monitoring and psychological capital have been investigated separately, this research simultaneously examines these two factors by drawing on resource conservation theory. Furthermore, it explores how these psychological traits impact salespersons' ability development (i.e. adaptive selling) and capital accumulation (i.e., family-based social capital and customer-based social capital), which, in turn, affect sales performance.

The results offer managerial insights into sales force selection and management. In particular, managers should encourage salespersons to obtain greater customer-based social capital, which is more valuable than family-based social capital in boosting sales performance.

The present research is also beneficial for employee psychological health management, as it seeks to illuminate the role of psychological traits, ability development and capital accumulation. It offers insights into sociological research on social capital by categorizing it into family-based and customer-based capital.

This paper extends the literature on salespersons' psychological traits, selling abilities and social capital by examining the impacts of self-monitoring and psychological capital on adaptive selling and social capital. Specifically, this study examines the interplay between self-monitoring and psychological capital from the perspective of resources conservation theory.

The impact strength of solder joint under high strain rate was evaluated by board level test method. However, the impact shear test of single solder bump was more convenient and economical than the board level test method. With the miniaturization of solder joints, solder joints were more prone to failure under thermal shock and more attention has been paid to the impact reliability of solder joint. But Pb-free solder joints may be paid too much attention and Sn-Pb solder joints may be ignored.

In this study, thermal shock test between −55°C and 125°C was conducted on Sn-37Pb solder bumps in the BGA package to investigate microstructural evolution and growth mechanism of interfacial intermetallic compounds (IMCs) layer. The effects of thermal shock and ball diameter on the mechanical property and fracture behavior of Sn-37Pb solder bumps were discussed.

With the increase of ball size, the same change tendency of shear strength with thermal shock cycles. The shear strength of the solder bumps was the highest after reflow; with the increase of the number of thermal shocks, the shear strength of the solder bumps was decreased. But at the time of 2,000 cycles, the shear strength was increased to the initial strength. Minimum shear strength almost took place at 1,500 cycles in all solder bumps. The differences between maximum shear strength and minimum shear strength were 9.11 MPa and 16.83 MPa, 17.07 MPa and 15.59 MPa in φ0.3 mm and φ0.4 mm, φ0.5 mm and φ0.6 mm, respectively, differences were increased with increasing of ball size. With similar reflow profile, the thickness of IMC decreased as the diameter of the ball increased. The thickness of IMC was 2.42 µm and 2.17 µm, 1.63 µm and 1.77 µm with increasing of the ball size, respectively.

Pb-free solder was gradually used to replace traditional Sn-Pb solder and has been widely used in industry. Nevertheless, some products inevitably used a mixture of Sn-Pb and Pb-free solder to make the transition from Sn-Pb to Pb-free solder. Therefore, it was very important to understand the reliability of Sn-Pb solder joint and more further research works were also needed.

Details a new type of screwing mechanical hand which has been developed. There are three distinguishing features on the structures and functions of the mechanical hand: it can perform both screwing and unscrewing automatically; it has no special driver for its finger grasp and release but adopts some specific mechanisms and structures for this process; and the preset screwing torque is used to control the release of the fingers. Describes the main parts and operating process of the hand; the structure and movements of the wrist and hand; and the principle behind the grasp and release mechanism.

By using ethnographic data and family interviews from eight families in Taipei, Taiwan, this paper aims to delineate how multigenerational families implement parents’ child-rearing values, and how these strategies vary by social class. The primary focus is the child’s mother and her relationship with other family members. I ask the following question: How does a mother in a three-generation family implement her ideal parenting values for her child while being encumbered by the constraints of her parents-in-law? Additionally, how does this intergenerational dynamic vary with family socioeconomic status? To conceptualize this process in such a complex context, I argue that we must understand parenting behaviors as acts of “doing family” and “intensive mothering.”

From 2008 to 2009, I conducted a pilot survey in two public elementary schools to recruit the parents of sixth-grade students. All eight cases of multigenerational families in this paper were selected randomly after being clustered by the parent’s highest education level and family income levels. This paper utilized the mothers’ interviews as the major source to analyze, while the interviews of other family members served as supplementary data.

Two cases, Mrs Lee and Mrs Su’s stories, were selected here to illustrate two distinctive approaches toward childrearing in multi-generational families. Results indicate that white-collar mothers in Taiwan hold the value of concerted cultivation and usually picture the concept of intensive mothering as their ideal image of parenthood. Yet, such an ideal and more westernized child-rearing philosophy often leads to tensions at home, particularly between the mother and the mother-in-law. Meanwhile, blue-collar mothers tend to collaborate with grandparents in sharing childcare responsibilities, and oftentimes experience friction over child discipline in terms of doing homework and material consumption.

Via this analysis of three-generation families in Taiwan, we are able to witness the struggle of contemporary motherhood in East Asia. This paper foregrounds the negotiations that these mothers undertake in defining ideal parenting and the ideal family. On the one hand, these mothers must encounter the new parenting culture, given that the cultural ideal of concerted cultivation has become a popular ideology. On the other hand, by playing the role of daughter-in-law, they must negotiate within the conventional, patriarchal family norms.

Using social networks to identify users with traits similar to those of the target user has proven highly effective in the development of personalized recommendation systems. Existing methods treat all dimensions of user data as a whole, despite the fact that most of the information related to different dimensions is discrete. This has prompted researchers to adopt the skyline query for such search functions. Unfortunately, researchers have run into problems of instability in the number of users identified using this approach.

We thus propose the m-representative skyline queries to provide control over the number of similar users that are returned. We also developed an R-tree-based algorithm to implement the m-representative skyline queries.

By using the R-tree based algorithm, the processing speed of the m-representative skyline queries can now be accelerated. Experiment results demonstrate the efficacy of the proposed approach.

Note that with this new way of finding similar users in the social network, the performance of the personalized recommendation systems is expected to be enhanced.

This study aims to study the mechanisms and conditions of users' intention to continue to use online health platforms from an information technology (IT) affordance perspective.

b This research proposes that a critical affordance effect on an online health platform, users' intention to continue the use of the platform, is affected by five platform affordances via two actualized affordances (i.e. perceived benefits (PBs) and online engagement (OE)). Perceived health threat moderates the effect generated by affordance actualization. A dataset involving 409 users from the “Ping An Health” platform was collected through an online survey and analyzed to validate the research hypotheses.

The data analysis results confirm that the proposed online health platform affordances affect users' PBs and OE, which influence users' intentions to continue using the platform. Perceived threats (perceived vulnerability (PVU) and perceived severity (PSE)) moderate the relationship between PBs and continuance intention (CI) and between OE and CI.

The research provides important recommendations for online health platform designers to develop IT affordances that can support users' needs for healthcare services.

Limited studies investigated why users continue participating in online diagnosis and treatment. This study provides a new perspective to expand the affordance framework by combining technology features and user health behavior. The study also emphasizes the importance of perceived threats in IT use.

The purpose of this paper is to conceptualize the indigenous concept of suzhi at individual and organizational levels, and identify its dimensions for human resource management (HRM) research and practice in China.

Based on a comprehensive review of suzhi literature, Chinese cultural and historical literature, as well as Western mainstream HRM research, a multidimensional suzhi framework is conceptualized.

As an indigenous expression, suzhi can be and has been adopted for Chinese HRM research and practice. As a multidimensional construct, one’s cognitive suzhi is jointly determined by corresponding moral suzhi, wenhua (knowledge-based) suzhi and zhuanye (professional) suzhi. Cognitive suzhi, in turn, determines one’s behavioral suzhi that drives employees to enhance organizational performance, and this relationship is moderated by psychological suzhi.

The proposed framework provides new insight for Chinese indigenous management research, particularly in developing suzhi measurement for different dimensions. It also informs HRM practices in recruiting, selection, performance analysis and employee career development.

The complexity of suzhi dimensions from an organizational HRM perspective is analyzed. The resulting suzhi framework offers new insight for HRM research and practices in China.