Search results

The purpose of this paper is to improve the key quality performance of the terminal of earphone in an electronic company.

Sequential experimental designs are employed. Significant input variables are found through a full factorial design. Then a response surface model is constructed considering curvature in the linear model.

Optimized key input variables’ parameters are found using the response surface model. The key quality performance, coplanarity of the terminal of earphone has been improved.

Instead of running a full factorial design in the first stage, a fractional factorial may be used to reduce experimental runs.

The paper presents a good solution for reducing defects caused by large coplanarity of a kind of earphone terminal.

The methodology used in this case can be easily extended to similar cases.

Film is an important recording medium in industry. How to ensure film quality is a problem, because the film is produced in a dark room. Aims to focus on this.

An inspection system based on machine vision is presented which could assure illumination and imaging at 940 nm which is safe for film.

An objective evaluation is given using an image processing method and satisfactory results are obtained. Now, the inspection system is used by the biggest film company in China.

This work focuses on an important issue in film production.

Disasters shape the development of communities and societies not only physically but also socially. This chapter provides some quantitative evidence to this effect by examining changes in social capital in communities affected by the 2008 Wenchuan Earthquake in China.

A two-wave, longitudinal household questionnaire survey data set was used for analysis. The baseline data were obtained in January, 2009, around 8 months after the 2008 Wenchuan Earthquake, adopting a stratified sampling method within a county severely disrupted by the earthquake. A ­follow-up survey with the same households was conducted in the summer of 2012. Finally, 415 household questionnaire surveys from nine communities within the county were collected for analysis.

Overall, it can be concluded that social capital was strengthened in the post-disaster recovery process in the survey area. Social capital was measured according to three dimensions: (1) affiliation with organizations, (2) the degree of available social support, and (3) the degree of social cohesion within communities. It was found that the average degree of social capital increased during the recovery process, with a decrease of social capital inequalities between different families. More specifically, although informal personal networks were found to be the most prominent sources of social support, the support provided by formal organizations played a relatively more important role immediately after the catastrophe, given that most of the personal networks were also affected. Community cohesion was also found to have increased, with a decrease of standard deviation in the recovery process. This chapter suggests that disasters could generate positive effects rather than negative ones alone. Stronger and more tightly knit communities could be built in the disaster recovery process, if appropriate policies and methods are implemented.

The purpose of this paper is to explore the concept of data assets and how companies can assetize their data. Using the literature review methodology, the paper first summarizes the conceptual controversies over data assets in the existing literature. Subsequently, the paper defines the concept of data assets. Finally, keywords from the existing research literature are presented visually and a foundational framework for achieving data assetization is proposed.

This paper uses a systematic literature review approach to discuss the conceptual evolution and strategic imperatives of data assets. To establish a robust research methodology, this paper takes into account two main aspects. First, it conducts a comprehensive review of the existing literature on digital technology and data assets, which enables the derivation of an evolutionary path of data assets and the development of a clear and concise definition of the concept. Second, the paper uses Citespace, a widely used software for literature review, to examine the research framework of enterprise data assetization.

The paper offers pivotal insights into the realm of data assets. It highlights the changing perceptions of data assets with digital progression and addresses debates on data asset categorization, value attributes and ownership. The study introduces a definitive concept of data assets as electronically recorded data resources with real or potential value under legal parameters. Moreover, it delineates strategic imperatives for harnessing data assets, presenting a practical framework that charts the stages of “resource readiness, capacity building, and data application”, guiding businesses in optimizing their data throughout its lifecycle.

This paper comprehensively explores the issue of data assets, clarifying controversial concepts and categorizations and bridging gaps in the existing literature. The paper introduces a clear conceptualization of data assets, bridging the gap between academia and practice. In addition, the study proposes a strategic framework for data assetization. This study not only helps to promote a unified understanding among academics and professionals but also helps businesses to understand the process of data assetization.

Irregularly shaped architectural designs with surfaces curved in multiple directions, known as free-form designs, have gained significant public interest in recent decades. However, it is challenging to convert complex designs into real structures. This paper aims to realize free-form construction by developing a novel workflow in which additively manufactured thermoplastic polyurethane (TPU) molds are used.

The workflow is developed through mechanical tests on additively manufactured TPU specimens, determination of TPU mold design criteria and exploration of mold preparation methods. Two concrete elements with free-form geometries are fabricated using the proposed workflow.

TPU is a thermoplastic elastomer that is strong and inexpensive, making it an ideal mold material for casting complex concrete structures. An innovative workflow is developed in which TPU molds are used, appropriate release agents are selected for different concrete casting conditions and a mold subdivision method is proposed to facilitate the demolding process. Furthermore, the integrity of TPU molds can be maintained by following the proposed workflow, enabling repetitive use of molds. The fabrication of the two free-form structures shows that complex concrete members with high dimensional accuracy and excellent surface quality can be manufactured using the proposed method.

To the best of the authors’ knowledge, this is the first systematic study on using additively manufactured TPU molds for concrete casting of complex structures. The new techniques developed in this research can be applied to large-scale architectural, engineering and construction projects.