Search results

Traditional nondestructive failure localization techniques are increasingly difficult to meet the requirements of high density and integration of system in package (SIP) devices in terms of resolution and accuracy. Time domain reflection (TDR) is recognized as a novel positioning analysis technology gradually being used in the electronics industry because of the good compatibility, high accuracy and high efficiency. However, there are limited reports focus on the application of TDR technology to SiP devices.

In this study, the authors used the TDR technique to locate the failure of SiP devices, and the results showed that the TDR technique can accurately locate the cracking of internal solder joints of SiP devices.

The measured transmission rate of electromagnetic wave signal was 9.56 × 107 m/s in the experimental SiP devices. In addition, the TDR technique successfully located the failure point, which was mainly caused by the cracking of the solder joint at the edge of the SiP device after 1,500 thermal cycles.

TDR technology is creatively applied to SiP device failure location, and quantitative analysis is realized.

Interkama, the international fair for industrial communication, automation and measurement, is undergoing major structural changes, but new developments in sensing and measurement were well represented at the October 1999 exhibition in Düsseldorf.

Passive chipless RFID (radio frequency identification) sensors, devoid of batteries or wires for data transmission to a signal reader, demonstrate stability in severe conditions. Consequently, employing these sensors for metal crack detection ensures ease of deployment, longevity and reusability. This study aims to introduce a chipless RFID sensor design tailored for detecting metal cracks, emphasizing tag reusability and prolonged service life.

The passive RFID sensor is affixed to the surface of the aluminum plate under examination, positioned over the metal cracks. These cracks alter the electrical length of the sensor, thereby influencing its amplitude-frequency characteristics. Hence, the amplitude-frequency profile generated by various metal cracks can effectively ascertain the occurrence and orientation of the cracks.

Simulation and experimental results show that the proposed crack sensing tag produces different frequency amplitude changes for four directions of cracks and can recognize the crack direction. The sensor has a small size and simple structure, which makes it easy to deploy.

This research aims to deploy crack detection on metallic surfaces using passive chipless RFID sensors, analyze the amplitude-frequency characteristics of crack formation and distinguish cracks of varying widths and orientations. The designed sensor boasts a straightforward structural design, facilitating ease of deployment, and offers a degree of reusability.

Despite the need for such, little scholarly attention has been paid to transdisciplinary enquiry into gender inequities in workplaces. The authors provide a pragmatic evaluation of the transdisciplinary research (TDR) model by Hall et al. (2012) for framing the study of this societal issue, shedding light on the challenges, principles and values that could usefully inform subsequent TDR in organisational settings.

This paper evaluates the model in relation to TDR on gender inequities in New Zealand's public service by Hall et al. (2012) Content analysis on our reflective narratives from research team meetings, email exchanges, informal discussions and a workshop reveals TDR study insights. Findings show support for the model and its four broad phases and surface principles and values for applied TDR enquiry that addresses societal challenges in the organisational context.

The adoption of a TDR model to examine a study of equity in the public service revealed practical and conceptual challenges, encouraging ongoing reflection and adaptive behaviour on the researchers' part. The pragmatic evaluation also highlighted environmental constraints on undertaking TDR, with implications for the ambition of future studies.

This evaluative enquiry encourages similar research in other organisational and national settings to validate the use of TDR to gain insightful, contextualised understandings of social challenges centred in the organisational setting.

This pragmatic evaluation of a TDR model's capacity to approximate the approach and phases of our applied enquiry lays the groundwork to refining TDR approaches used in subsequent studies aimed at addressing societal issues in the organisational setting.

This paper can potentially promote greater collaboration between research scholars and other stakeholders wanting to develop TDR paradigms and applied enquiry that can meaningfully inform workplace and societal impacts.

This pragmatic evaluation of a TDR approach involves its initial application to the study of equity at work and develops principles and values that could inform TDR paradigms and methodologies of subsequent enquiries in the field.

The purpose of this paper is to solve the problem of information privacy and security of social users. Mobile internet and social network are more and more deeply integrated into people’s daily life, especially under the interaction of the fierce development momentum of the Internet of Things and diversified personalized services, more and more private information of social users is exposed to the network environment actively or unintentionally. In addition, a large amount of social network data not only brings more benefits to network application providers, but also provides motivation for malicious attackers. Therefore, under the social network environment, the research on the privacy protection of user information has great theoretical and practical significance.

In this study, based on the social network analysis, combined with the attribute reduction idea of rough set theory, the generalized reduction concept based on multi-level rough set from the perspectives of positive region, information entropy and knowledge granularity of rough set theory were proposed. Furthermore, it was traversed on the basis of the hierarchical compatible granularity space of the original information system and the corresponding attribute values are coarsened. The selected test data sets were tested, and the experimental results were analyzed.

The results showed that the algorithm can guarantee the anonymity requirement of data publishing and improve the effect of classification modeling on anonymous data in social network environment.

In the test and verification of privacy protection algorithm and privacy protection scheme, the efficiency of algorithm and scheme needs to be tested on a larger data scale. However, the data in this study are not enough. In the following research, more data will be used for testing and verification.

In the context of social network, the hierarchical structure of data is introduced into rough set theory as domain knowledge by referring to human granulation cognitive mechanism, and rough set modeling for complex hierarchical data is studied for hierarchical data of decision table. The theoretical research results are applied to hierarchical decision rule mining and k-anonymous privacy protection data mining research, which enriches the connotation of rough set theory and has important theoretical and practical significance for further promoting the application of this theory. In addition, combined the theory of secure multi-party computing and the theory of attribute reduction in rough set, a privacy protection feature selection algorithm for multi-source decision table is proposed, which solves the privacy protection problem of feature selection in distributed environment. It provides a set of effective rough set feature selection method for privacy protection classification mining in distributed environment, which has practical application value for promoting the development of privacy protection data mining.

In this study, the proposed algorithm and scheme can effectively protect the privacy of social network data, ensure the availability of social network graph structure and realize the need of both protection and sharing of user attributes and relational data.

The purpose of this paper is to examine the feasibility of adopting a market‐based land use model, Transfer of Development Rights (TDR), which is very popular in America and other countries as a positive land use control mechanism for conservation, in an evolving socialist land economy, namely China.

This paper utilizes a case study approach, supplemented by a cost‐benefit model, to estimate the feasibility of establishing a TDR model in Chongqing, China.

From the analysis, it is found that a market‐based land use mechanism can serve to maximize the benefits of all parties and can balance the interests between development pressures and conservation needs. However, this is based on a number of conditions, including: that a well‐developed legal framework should be set up, to clearly delineate property rights; that a good and enforceable planning system should be in place; and that a mature land market mechanism should be developed that allows open market prices to be realized in the trading of development rights.

This case study is based on a hypothetical situation of one case. More data are needed to support the argument in the future.

Conservation is a major concern for the local governments in China, given the recent high speed economic growth. A model that can balance development pressure, while allowing the market to compensate fully for the infringement of property rights in the process of urban regeneration, is worthy of the authority's attention in future policy formulation.

This paper shows that the society as a whole can strike a balance between the need for economic development and conservation of historic sites, provided some conditions can be met.

This paper fulfills an identified need to study the establishment of a market‐based land use model in the conservation policy of land in China.

The purpose of this study is to assess the contributions of graduate research to social innovation and change for learning and improved transdisciplinary practice. Universities, as centers of teaching and research, face high demand from society to address urgent social and environmental challenges. Faculty and students are keen to use their research to contribute to social innovation and sustainable development. As part of the effort to increase societal impact, research approaches are evolving to be more problem-oriented, engaged and transdisciplinary. Therefore, new approaches to research evaluation are also needed to learn whether and how research contributes to social innovation, and those lessons need to be applied by universities to train and support students to do impactful research and foster an impact culture.

This paper uses a theory-based evaluation method to assess the contributions of three completed doctoral research projects. Each study documents the project’s theory of change (ToC) and uses qualitative data (document review, surveys and interviews) to test the ToC. This paper uses a transdisciplinary research (TDR) quality assessment framework (QAF) to analyze each projects’ design and implementation. This paper then draws lessons from the individual case studies and a comparative analysis of the three cases on, namely, effective research design and implementation for social transformation; and training and support for impactful research.

Each project aimed to influence government policy, organizational practice, other research and/or the students’ own professional development. All contributed to many of their intended outcomes, but with varying levels of accomplishment. Projects that were more transdisciplinary had more pronounced outcomes. Process contributions (e.g. capacity-building, relationship-building and empowerment) were as or more important than knowledge contributions. The key recommendations are for: researchers to design intentional research, with an explicit ToC; higher education institutions (HEI) to provide training and support for TDR theory and practice; and HEIs to give more attention to research evaluation.

This is the first application of both the outcome evaluation method and the TDR QAF to graduate student research projects, and one of very few such analyses of research projects. It offers a broader framework for conceptualizing and evaluating research contributions to social change processes. It is intended to stimulate new thinking about research aims, approaches and achievements.

This chapter explores the empirical and empathetic approaches employed by a group of fieldworkers from Japan who collaborated with individuals from different parts of Southeast Asia. Their objective was to address shared societal challenges and mentor the next generation of future talents. Additionally, research administrators at Kyoto University conducted an online survey and organized study group meetings focused on Science, Technology and Innovation (STI) coordination, engaging approximately 700 partners in ASEAN. While formal job guidelines for hiring full-time research administrators are rare in the region, many researchers and government officials in ASEAN recognised the importance of these coordination skills and values in advancing STI projects. Coordinating ASEAN-Japan projects has demonstrated that practical experiences with skilled professionals and strong interpersonal skills aligned with Asian cultural values that prioritize conscience and altruism. As a next step, the region will require appropriate human resource training and assessment programs tailored to local STI needs.

This paper aims to clarify the functions of tourism interpretations of consumer products in a tourist-generating region (TGR) as a means of marketing the tourist destination region (TDR) through tea tourism.

This is a case study of the Thai Shizuoka Green Tea brand working to promote tea tourism in Shizuoka, Japan. It is used to identify the functions of tourism interpretations of consumer products in a TGR related to the concept of brand identity. This paper assessed Thai consumers’ opinions on the efficiency of tourism interpretation through a sample of 404 questionnaires and with interviews of ten young females, the primary respondents.

Tourism interpretations of the TGR’s consumer products are important for promoting the TDR through five premises: 1) motivating visitors to visit the destination, 2) communicating the place’s meaning, 3) targeting potential tourists, 4) differentiating the destination from other sites and 5) activating value co-creation. Premises 1 and 2 were assumed to stem from visitors’ enjoyment of the tea; the packaging motivated their visit to Shizuoka, its origin. Premise 3 concerns young women who view the product as a premium healthy drink. Premises 4 and 5 are based on the brand’s essence, implying the tea company’s partnership between Thailand and Japan.

Tourism interpretation plays a significant role in TDRs’ success; however, it can be implemented with other consumer products and an efficient brand identity, to create an image of a destination.

This paper presents the results of research into the process of testing controlled impedance circuit boards. It aims to provide a general introduction to the subject of controlled impedance circuit board production for manufacturers wishing to make this type of board in the future and offers constructive suggestions for those who may want to improve on their current process. Consequently, in addition to describing test issues there are references to some of the other main subject areas that require attention when the production of high quality controlled impedance circuit boards is to be considered, namely design, materials and fabrication. The content of this paper is based on production trials that were conducted by MEPD Met‐Etch (Selkirk) Ltd at their manufacturing facilities in Scotland as part of a UK Ministry of Defence research contract. The results of this research were included in a report for the UK Defence Research Agency (Electronics Division) and subsequently were also detailed in an individual ‘Guidelines for Designers’ document. This document has since been separately submitted to ECL 19 with a view towards incorporation into the CECC 23000 Approval System. In order to verify the test results, separate comparison measurements were also conducted by other circuit board manufacturers using a range of suitable test instrumentation. There is a growing requirement in the printed circuit board industry for a simple means of testing controlled impedance boards. This paper promotes the use of computer‐controlled test instrumentation so that accurate and repeatable measurements can be made by production staff in a manufacturing environment. If this is achieved, it should be possible to close the quality loop on controlled impedance circuit board production using normal statistical process control techniques.