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Article
Publication date: 22 September 2022

Youxin Zhang, Yang Liu, Rongxing Cao, Xianghua Zeng and Yuxiong Xue

Concerning the radiation effects on the three-dimensional (3D) packaging in space environment, this study aims to investigate the influence of the total dose effect on the…

Abstract

Purpose

Concerning the radiation effects on the three-dimensional (3D) packaging in space environment, this study aims to investigate the influence of the total dose effect on the transmission characteristics of high-frequency electrical signals using experimental and simulation methods.

Design/methodology/approach

This work carries out the irradiation test of the specimens and measures their S21 parameters before and after irradiation. A simulation model describing the total dose effect was built based on the experimental test results. And, the radiation hardening design is evaluated by the simulation method.

Findings

The experimental results demonstrate that the S21 curve of the interconnection decreases with the increase of the irradiation dose, indicating that the total dose effect leads to the decline of its signal transmission characteristics. According to the simulation results, decreasing the height of the through silicon via (TSV), increasing the radius of the TSV, reducing the length of Si and increasing the number of grounded through silicon via have positive effects on improving the radiation resistance of the interconnection structure.

Originality/value

This work investigates the effect of radiation on the transmission characteristics of interconnection structures for 3D packaging and proposes the hardening design methods. It is meaningful for improving the reliability of 3D packaging in space applications.

Details

Microelectronics International, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1356-5362

Keywords

Article
Publication date: 5 September 2018

Linhao Ouyang, Zijian Zhang, Xiaoling Huang and Shi Xie

The purpose of this study is to restore the spatial distribution of overseas remittance businesses in Shantou during the 1940s. It explores various socioeconomic factors…

Abstract

Purpose

The purpose of this study is to restore the spatial distribution of overseas remittance businesses in Shantou during the 1940s. It explores various socioeconomic factors that influenced the concentration of local remittance business investment in real estate. By reconstructing the spatial distribution of remittance business activities in Shantou, this study hopes to lay a foundation for further analysis of the business strategies of Chaoshan merchants.

Design/methodology/approach

This research draws on information from the published Swatow Guide, archival sources and cadastral maps to identify the location of remittance enterprises and the native place and overseas networks of property owners.

Finding

This study reveals that the spatial distribution of the remittance enterprises was determined by the native place origins of local property owners, and that the inflow of overseas Chinese capital contributed to real estate development in Shantou.

Research limitations/implications

Despite the limited access to Chinese official archives, this paper manages to identify several building blocks and neighbors in Shantou for spatial analysis.

Practical implications

This study is the first attempt to use the geographical information system (GIS) method in Chinese urban history research and hopes to establish a larger historical database of Shantou as a sample for comparison.

Originality/value

This investigation advances the spatial study of urban history and overseas Chinese remittances in the maritime society of South China.

Details

Social Transformations in Chinese Societies, vol. 14 no. 2
Type: Research Article
ISSN: 1871-2673

Keywords

Article
Publication date: 10 April 2009

Luo Youxin, Wu Xiao, Li Min and Cai Anhui

The purpose of this paper is to overcome the deficiency of the current GM(1,N) such as low‐prediction precision, extend the scope of GM(1,N) and provide an effective grey…

343

Abstract

Purpose

The purpose of this paper is to overcome the deficiency of the current GM(1,N) such as low‐prediction precision, extend the scope of GM(1,N) and provide an effective grey dynamic model GM(1,N) for the relationship of cost and variability.

Design/methodology/approach

The relationship between two factors of variety and the cost of manufacturing system is studied on the basis of the variety reduction program theory. Based on the Grey system and the gradient algorithm, a Grey dynamic model GM(1,N) is proposed between cost and variety by optimizing the coefficient and background value of the model which is used to check validity for the relation of plasm‐yarn machine product and variety.

Findings

The proposed Grey dynamic prediction model GM(1,N) for the relationship of cost and variability has high precision and easy‐to‐use.

Research limitations/implications

A Grey model GM(1,N) for prediction is proposed.

Practical implications

The proposed model should also have potential for multifactor system prediction in engineering.

Originality/value

The deficiency of the current GM(1,N) is overcome, the scope of GM(1,N) is extended and the proposed Grey dynamic model GM(1,N) has high‐prediction precision.

Details

Kybernetes, vol. 38 no. 3/4
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 5 October 2012

Yanan Zhang

The purpose of this paper is to explore and examine, in a systematic manner, possible preventive measures that commercial parties can take in order to prevent or reduce…

3407

Abstract

Purpose

The purpose of this paper is to explore and examine, in a systematic manner, possible preventive measures that commercial parties can take in order to prevent or reduce documentary letter of credit (L/C) fraud in international transactions.

Design/methodology/approach

In the context of international transactions, considering documentary L/C fraud as a risk, the paper searched preventive measures that different parties involved can adopt, from both business perspective and legal perspective.

Findings

The paper provides a number of specific measures which buyers, sellers, and banks in international L/C transactions can take in business to reduce L/C fraud. The option of banks providing additional services of checking further the validity or authenticity of some documents under the L/C, by charging additional prices, has reflected the needs of some business parties. However, this is proposed to be optional rather than compulsory for banks. The lawyers can also play an important role by adopting preventive legal mentality to help and provide advice to different parties in applying the preventive and proactive approach. More importantly, the author recommends that buyers or sellers maintain close cooperation with their banks and lawyers in implementing preventive and proactive measures.

Practical implications

The paper can be a helpful source of advice for business enterprises likely to be involved in international documentary L/C transactions.

Originality/value

This paper fulfils the gap of a holistic study on how to prevent international documentary letter of credit fraud.

Details

Journal of Financial Crime, vol. 19 no. 4
Type: Research Article
ISSN: 1359-0790

Keywords

Article
Publication date: 1 June 2021

Yushen Wang, Wei Xiong, Danna Tang, Liang Hao, Zheng Li, Yan Li and Kaka Cheng

Traditional simulation research of geological and similar engineering models, such as landslides or other natural disaster scenarios, usually focuses on the change of…

Abstract

Purpose

Traditional simulation research of geological and similar engineering models, such as landslides or other natural disaster scenarios, usually focuses on the change of stress and the state of the model before and after destruction. However, the transition of the inner change is usually invisible. To optimize and make models more intelligent, this paper aims to propose a perceptible design to detect the internal temperature change transformed by other energy versions like stress or torsion.

Design/methodology/approach

In this paper, micron diamond particles were embedded in 3D printed geopolymers as a potential thermal sensor material to detect the inner heat change. The authors use synthetic micron diamond powder to reinforced the anti-corrosion properties and thermal conductivity of geopolymer and apply this novel geopolymer slurry in the direct ink writing (DIW) technique.

Findings

As a result, the addition of micron diamond powder can greatly influence the rheology of geopolymer slurry and make the geopolymer slurry extrudable and suitable for DIW by reducing the slope of the viscosity of this inorganic colloid. The heat transfer coefficient of the micron diamond (15 Wt.%)/geopolymer was 50% higher than the pure geopolymer, which could be detected by the infrared thermal imager. Besides, the addition of diamond particles also increased the porous rates of geopolymer.

Originality/value

In conclusion, DIW slurry deposition of micron diamond-embedded geopolymer (MDG) composites could be used to manufacture the multi-functional geological model for thermal imaging and defect detection, which need the characteristic of lightweight, isolation, heat transfer and wave absorption.

Article
Publication date: 17 January 2022

Shaofeng Yuan and Ying Gao

This study investigated the potential negative effects of a sponsored team's losing performance on audiences' trust and purchase intention toward the sponsoring brand…

Abstract

Purpose

This study investigated the potential negative effects of a sponsored team's losing performance on audiences' trust and purchase intention toward the sponsoring brand. Shedding light on the moderating role of sponsoring brand familiarity among audiences and audience team identification regarding such negative effects, the study establishes when sports sponsorship may incur risk to a sponsoring brand.

Design/methodology/approach

Three experimental designs (audience as stimulus of a team's losing vs control condition) were used to indicate whether and when losing performance influences participants' trust and purchase intention toward the sponsoring brand.

Findings

The participants in the losing condition report lower brand trust and purchase intention. Brand trust mediates the relationship between losing results and decreased purchase intention. The negative effects of losing on brand trust and purchase intention only appear when the sponsoring brand has low familiarity among audiences and only for audiences with low identification.

Practical implications

The strategy of a brand with low familiarity sponsoring a team that frequently loses has risks and is not worth advocating. However, if an unknown brand has already sponsored a team that often loses, the efforts to cultivate audiences' identification with the team can reduce the potential risks.

Originality/value

The affirmed negative effects of losing performance on brand trust and purchase intention have value for firm sponsorship decisions. This study contributes to the sponsorship literature by revealing two boundary conditions (sponsoring brand familiarity and audiences' team identification) for those negative effects.

Details

International Journal of Sports Marketing and Sponsorship, vol. 23 no. 4
Type: Research Article
ISSN: 1464-6668

Keywords

Article
Publication date: 11 May 2020

Kwun-fu Chan

This study aims to examine the problems encountered during the establishment of the Central Police Academy (CPA) under the Nationalist regime from 1936 to 1949. While the…

Abstract

Purpose

This study aims to examine the problems encountered during the establishment of the Central Police Academy (CPA) under the Nationalist regime from 1936 to 1949. While the authoritarian party-state unified the police academies by forceful means, this catalyzed the cleavage between the schools of police studies and resulted in power struggles over police education, intellectual thought, collectivity and even the national reform of police administration. More than narrating the progress of power consolidation, this study attempts to identify the problems underlying the factional strife and to reveal the interwoven pattern of these power struggles, exploring the confusion regarding what the police is, a question that troubled Chinese policemen from the mainland to Taiwan.

Design/methodology/approach

This paper explains the emergence of the factional strife from the beginning of the preliminary growth of the Police Academies in Nanking and Chekiang. It widely makes use of the official archives from Japan Center for Asian Historical Records and Historica Academia to show the dynamic situation in police education and administration. Rather, the official publications of the Police Academies and their affiliated associations reveal the hidden political agenda behind a unified framework as the party-state claimed. Moreover, official gazettes, memorials and newspapers are also used to strengthen the core argument of this study.

Findings

This paper examines the impact of the factional strife between the police leaders Dai Li and Li Shizhen on the CPA from 1936 to 1949. It illustrates that the establishment of the CPA ostensibly unified the nationwide police force but triggered power struggles over the control of the police administration. More importantly, it also shows how the factions strove for larger shares of power under the supreme doctrines that Chiang Kai-shek and the party-state imposed.

Originality/value

The failure of police education to become powerful was a special case among other more typical institutions. The governors coercively merged the police academies and created robust conditions for growth under the shelter of state authority. The police force did not follow the same path of national monopoly as what recent studies found but drifted apart with its vested interests and incompatible beliefs. Hence, the greater the demand for centralized control by the state, the greater the tension of the factional strife.

Details

Social Transformations in Chinese Societies, vol. 16 no. 1
Type: Research Article
ISSN: 1871-2673

Keywords

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