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Open Access
Article
Publication date: 4 July 2024

Songtao Qu, Qingyu Shi, Gong Zhang, Xinhua Dong and Xiaohua Xu

This study aims to address the problem of low-temperature wave soldering in industry production with Sn-9Zn-2.5 Bi-1.5In alloys and develop qualified process parameters. Sn–Zn…

Abstract

Purpose

This study aims to address the problem of low-temperature wave soldering in industry production with Sn-9Zn-2.5 Bi-1.5In alloys and develop qualified process parameters. Sn–Zn eutectic alloys are lead-free solders applied in consumer electronics due to their low melting point, high strength, and low cost. In the electronic assembly industry, Sn–Zn eutectic alloys have great potential for use.

Design/methodology/approach

This paper explored developing and implementing process parameters for low-temperature wave soldering of Sn–Zn alloys (SN-9ZN-2.5BI-1.5 In). A two-factor, three-level design of the experiments experiment was designed to simulate various conditions parameters encountered in Sn–Zn soldering, developed the nitrogen protection device of waving soldering and proposed the optimal process parameters to realize mass production of low-temperature wave soldering on Sn–Zn alloys.

Findings

The Sn-9Zn-2.5 Bi-1.5In alloy can overcome the Zn oxidation problem, achieve low-temperature wave soldering and meet IPC standards, but requires the development of nitrogen protection devices and the optimization of a series of process parameters. The design experiment reveals that preheating temperature, soldering temperature and flux affect failure phenomena. Finally, combined with the process test results, an effective method to support mass production.

Research limitations/implications

In term of overcome Zn’s oxidation characteristics, anti-oxidation wave welding device needs to be studied. Various process parameters need to be developed to achieve a welding process with lower temperature than that of lead solder(Sn–Pb) and lead-free SAC(Sn-0.3Ag-0.7Cu). The process window of Sn–Zn series alloy (Sn-9Zn-2.5 Bi-1.5In alloy) is narrow. A more stringent quality control chart is required to make mass production.

Practical implications

In this research, the soldering temperature of Sn-9Zn-2.5 Bi-1.5In is 5 °C and 25 °C lower than Sn–Pb and Sn-0.3Ag-0.7Cu(SAC0307). To the best of the authors’ knowledge, this work was the first time to apply Sn–Zn solder alloy under actual production conditions on wave soldering, which was of great significance for the study of wave soldering of the same kind of solder alloy.

Social implications

Low-temperature wave soldering can supported green manufacturing widely, offering a new path to achieve carbon emissions for many factories and also combat to international climate change.

Originality/value

There are many research papers on Sn–Zn alloys, but methods of achieving low-temperature wave soldering to meet IPC standards are infrequent. Especially the process control method that can be mass-produced is more challenging. In addition, the metal storage is very high and the cost is relatively low, which is of great help to provide enterprise competitiveness and can also support the development of green manufacturing, which has a good role in promoting the broader development of the Sn–Zn series.

Details

Soldering & Surface Mount Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0954-0911

Keywords

Article
Publication date: 8 October 2021

Fengqi Qian

The paper aims to contribute to the current research on China's Belt and Road Initiative (BRI) from a historical point of view. The paper investigates why the history of the Silk…

Abstract

Purpose

The paper aims to contribute to the current research on China's Belt and Road Initiative (BRI) from a historical point of view. The paper investigates why the history of the Silk Roads is important to the BRI, what is in the guiding thought underpinning China's Silk Roads narrative and how this narrative is presented transnationally, through an insightful analysis of the Communist Party of China's (CPC) view of the Silk Roads history, as well as its perception of the connections between the Silk Roads history and the BRI.

Design/methodology/approach

The paper sits in the interface between history, heritage and state power. The argument is framed in concepts of historical constructionism and soft power. It is based on the discourse analysis of China's official narrative of Silk Roads and a case study of the planning for the World Heritage nomination of the Maritime Silk Routes (MSR) (China section). The case study is conducted through a qualitative analysis of academic publications, media reports and programs, official speeches and documents that are available to the public in hardcopy or on the Internet.

Findings

The paper reveals the relationship between the state-endorsed Silk Roads narrative and the BRI. The paper argues that the state-backed Silk Roads narrative as well as the planning for the World Heritage nomination of the MSR (China section) is guided by the Chinese Communist Party's perception of the BRI. In this respect, the Silk Roads-associated history, heritage and memory are shaped and deployed to serve as a convenient platform for the promotion of the BRI. The Party leaders' perception of the BRI is in large part about the revival of China's past glory, its national rejuvenation and the demonstration of China's soft power.

Originality/value

The paper contributes to the existing literature on the BRI through its enquiries into how the CPC reconcile nationalist ambitions with notions of peace, harmony and cosmopolitanism and how CPC's view of the Silk Roads history shapes its vision of the BRI. The paper examines the role of the state in the construction and articulation of the Silk Roads-associated history, heritage and memory. It investigates how China's official interpretation of the Silk Road heritage serves China's BRI.

Details

Journal of Cultural Heritage Management and Sustainable Development, vol. 12 no. 1
Type: Research Article
ISSN: 2044-1266

Keywords

Content available
Article
Publication date: 1 May 2003

444

Abstract

Details

Disaster Prevention and Management: An International Journal, vol. 12 no. 2
Type: Research Article
ISSN: 0965-3562

Article
Publication date: 18 May 2022

Shidi Dong, Lei Xu and Ron P. McIver

Based on institutional theory, this paper aims to examine whether, and if so which, institutional forces influence the quality of China’s listed financial institutions’ (FIs…

1635

Abstract

Purpose

Based on institutional theory, this paper aims to examine whether, and if so which, institutional forces influence the quality of China’s listed financial institutions’ (FIs) sustainability disclosures.

Design/methodology/approach

Using univariate statistical and multiple regression analyses, this study quantitatively examines the impacts of coercive pressure from the government and stock exchanges, imitation within subsectors and normative pressure from industry associations and regulators on the quality of China’s listed FIs’ sustainability disclosures. Assessment of the robustness of regression results uses panel random-effects and generalized methods of moments estimation.

Findings

Financial sector corporate social responsibility (CSR) disclosure quality did not increase dramatically following issue of the “Guiding Opinions on Establishing a Green Finance System.” However, a convergence in quality is found over time. State ownership concentration and state links to dominant shareholders negatively impact the quality of financial sector sustainability disclosures, whereas stock exchange index listing requirements and industry association reporting guidance have positive influences.

Research limitations/implications

First, data availability limits the sample to listed financial firms with RKS quality scores. Thus, results may not be generalizable to the broader listed and unlisted financial sector. Second, this study only examines the influence of external forces based on institutional theory. However, internal institutional forces, such as corporate governance, may require examination. This study’s results indicate that coercive pressure, as represented by issue of the “Green Finance” policy, has not yet prompted the financial sector to improve reporting quality; however, normative pressure has had significant influence in influencing FIs’ CSR practices, with China’s banks potentially taking a leading role.

Originality/value

The financial sector has a lower direct environmental impact than traditional polluting industries and different operating and reporting structures, features often used to argue for its exclusion in prior studies. However, its indirect environmental impact via lending and investing activities is significant, suggesting evidence on the determinants of sustainability disclosure quality is required. This study uses evidence from China’s financial sector to reduce this gap in the literature.

Details

Meditari Accountancy Research, vol. 31 no. 5
Type: Research Article
ISSN: 2049-372X

Keywords

Article
Publication date: 1 October 1997

Usha C.V. Haley and George T. Haley

Emphasizes that tourism forms the largest industry in the world and the Vietnamese Government has targeted it for strategic foreign direct investment (FDI). Notes although…

5567

Abstract

Emphasizes that tourism forms the largest industry in the world and the Vietnamese Government has targeted it for strategic foreign direct investment (FDI). Notes although researchers and policy makers comprehend particular aspects of tourism, they often misperceive how the variables interact within economic and political systems. Elaborates on experiences in similar and related Asian markets that indicate policies necessary to develop a sustainable, socially and ecologically‐desirable tourism industry through appropriate balancing of key stakeholders’ goals. First defines sustainable development in the context of tourism and indicates its relevance for Vietnam. Next, analyses some economic and social costs and benefits associated with tourism; also interprets recent governmental policies’ influences. Finally, provides policy recommendations for the future of sustainable and economically‐viable national tourism development in Vietnam.

Details

Management Decision, vol. 35 no. 8
Type: Research Article
ISSN: 0025-1747

Keywords

Content available
Article
Publication date: 1 May 2007

437

Abstract

Details

Disaster Prevention and Management: An International Journal, vol. 16 no. 2
Type: Research Article
ISSN: 0965-3562

Content available
Article
Publication date: 1 December 2003

172

Abstract

Details

Disaster Prevention and Management: An International Journal, vol. 12 no. 5
Type: Research Article
ISSN: 0965-3562

Article
Publication date: 7 June 2019

Yaoqi Li, Lishan Xie, Teng Gao and Xinhua Guan

This paper aims to explore the physical attractiveness stereotype in service encounters. Specifically, this paper examines how physical attractiveness affects a customer’s…

1698

Abstract

Purpose

This paper aims to explore the physical attractiveness stereotype in service encounters. Specifically, this paper examines how physical attractiveness affects a customer’s response and whether a customer’s social interaction anxiety and the consumption situation moderate this relationship.

Design/methodology/approach

Three experiments were used to test hypotheses. Participants were subject to scenarios of varying levels of physical attractiveness (more vs less), social interaction anxiety (high vs low) and consumption situation (private vs public). Customer participation intention and citizenship behavior were measured along scales.

Findings

The results indicate that the physical attractiveness of service providers positively affects customer citizenship behavior, and customer participation intention mediates this relationship. However, the effect only exists for a customer with low social interaction anxiety or presents itself under public consumption conditions.

Research limitations/implications

This work paints a more nuanced picture of missing links in the understanding of the influence of service providers’ physical attractiveness. It enriches the physical attractiveness stereotype literature by identifying the mediating role of customer participation intention while bounding the relationship within conditions related to a customer’s social interaction anxiety and the service consumption situation.

Practical implications

Management may alter the performance of service employees by considering the employee’s physical attractiveness and gauging customer social interaction anxiety while keeping in mind the consumption situation.

Originality/value

This study advances physical attractiveness stereotype research by examining its effect on customer participation intention and citizenship behavior in the service industry. Additionally, this study adds customer social interaction anxiety and consumption situation to the existing literature that addresses employee factors affecting customer behavior.

Details

Journal of Services Marketing, vol. 33 no. 3
Type: Research Article
ISSN: 0887-6045

Keywords

Open Access
Article
Publication date: 19 January 2023

Haijuan Yang, Gail Krantzberg, Xiaohuan Dong and Xiwu Hu

This study aims to examine the impact of migration growth on environmental outcomes and local governance and assess how well the existing local municipal governance has responded…

1603

Abstract

Purpose

This study aims to examine the impact of migration growth on environmental outcomes and local governance and assess how well the existing local municipal governance has responded to the environmental impact of increased migration influx in Ontario, Canada using the annual data during 2012–2021.

Design/methodology/approach

This study used the grey relational analysis (GRA) to examine the correlation degree between migrant growth, environmental outcomes and local governance, used coupling coordination degree model (CCDM) to access to what extent the existing local governance systems have responded to the environmental impact of immigrant growth.

Findings

Results show that higher immigrant populations are associated with worse environmental outcomes and the need for more municipal environmental investment and service. The present local municipal environmental service in Ontario lags behind in response to the environmental impacts of increased migration. Good local governance practices and environmental services are required to improve the environmental adaptation capacity of host countries to migrant influx.

Originality/value

Climate change has been regarded as an important driver of internal and international human migration. The mass influxes of migrants will threaten cities’ environmental quality and put considerable pressure on municipal services. This study provides empirical evidence for Ontario’s municipal environmental governance and relevant authorities on how to deal with the environmental impact of increased migration and contributes to call the attention of other countries to the urban environmental pressure caused by migration influx due to the changing climate world wide.

Details

International Journal of Climate Change Strategies and Management, vol. 15 no. 3
Type: Research Article
ISSN: 1756-8692

Keywords

Abstract

Details

Chinese Social Media
Type: Book
ISBN: 978-1-83909-136-0

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