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Article
Publication date: 8 January 2020

Wanying Liu, Junjie Yang, Yuhong Qiu, Ying Liu and Kuanhai Deng

The preferable concentration of titanium carbide was optimized and added as an additive to the micro-arc oxidation electrolyte to produce a high corrosion-resistant coating on…

171

Abstract

Purpose

The preferable concentration of titanium carbide was optimized and added as an additive to the micro-arc oxidation electrolyte to produce a high corrosion-resistant coating on D16T aluminum alloy.

Design/methodology/approach

Ceramic coatings were deposited on D16T aluminum alloy by plasma electrolytic oxidation in alkaline silicate electrolytes with micron titanium carbide particle suspending at different concentrations. Influences of additive concentration on morphology, elemental and phase composition and corrosion resistance of doped PEO coatings were evaluated by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and electrochemical methods, respectively.

Findings

Results revealed that suspending titanium carbide additives incorporated into ceramic coatings through discharging channels and chemically transformed into amorphous stage. The content of titanium in the doped coatings increased with the increasing concentration of suspending micron additive. Compared with the coating without particle addition, the corrosion resistance of the coating produced in 8 g/L titanium carbide suspension increased more than 20 times. The result indicated that the incorporation of titanium into the PEO coatings formed on the D16T aluminum alloy could effectively improve the corrosion resistance.

Originality/value

The mechanism of corporation of TiC and the mechanism of improving the corrosion resistance of the coating were proposed.

Details

Anti-Corrosion Methods and Materials, vol. 67 no. 1
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 2 November 2015

Bo Huang, Yuanhua Lin, Ambrish Singh, Eno E Ebenso, Lujiang Zhou, Wanying Liu and Kuanhai Deng

– The purpose of this paper is to test bagasse extract as an effective corrosion inhibitor.

204

Abstract

Purpose

The purpose of this paper is to test bagasse extract as an effective corrosion inhibitor.

Design/methodology/approach

The bagasse was extracted without any toxic substance and was found to be effective for corrosion of J55 steel.

Findings

The inhibition efficiency of bagasse was more than 90 per cent in 3.5 per cent NaCl solution saturated with CO2 for corrosion inhibition of J55 steel.

Research limitations/implications

The inhibition effect of Saccharum sinense bagasse extract on the corrosion of J55 steel in 3.5 weight per cent NaCl saturated with CO2 solution was investigated by means of Fourier transform infrared spectroscopy, electrochemical impedance spectroscopy, polarization curve and scanning electron microscope.

Practical implications

It can be used as low-cost corrosion inhibitor.

Social implications

It is an environment-friendly corrosion inhibitor.

Originality/value

This work is original and carried out in Southwest Petroleum University, China. This is not communicated anywhere else.

Details

Anti-Corrosion Methods and Materials, vol. 62 no. 6
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 21 August 2023

Xi Zhang, Rui Chang, Minhao Gu and Baofeng Huo

Blockchain is a distributed ledger technology that uses cryptography to ensure transmission and access security, which provides solutions to numerous challenges to complex supply…

735

Abstract

Purpose

Blockchain is a distributed ledger technology that uses cryptography to ensure transmission and access security, which provides solutions to numerous challenges to complex supply networks. The purpose of this paper is to empirically test the impact of blockchain implementation on shareholder value varying from internal and external complexity from the complex adaptive systems (CASs) perspective. It further explores how business diversification, supply chain (SC) concentration and environmental complexity affect the relationship between blockchain implementation and shareholder value.

Design/methodology/approach

Based on 138 blockchain implementation announcements of listed companies on the Chinese A-share stock market, the authors use event study methodology to evaluate the impact of blockchain implementation on shareholder value.

Findings

The results show that blockchain implementation has a positive impact on shareholder value, and this impact will be moderated by business diversification, SC concentration and environmental complexity. In addition, environmental complexity exerts a moderating effect on SC concentration. In the post hoc analysis, the authors further explore the impact of blockchain implementation on long-term operational performance.

Originality/value

This is the first research empirically examining the effect of blockchain implementation on shareholder value varying from internal and external complexity from the CASs perspective. This paper provides evidence of the different effects of blockchain implementation on short- and long-term performance. It adds to the interdisciplinary research of information systems (IS) and operations management (OM).

Details

International Journal of Operations & Production Management, vol. 44 no. 3
Type: Research Article
ISSN: 0144-3577

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Article
Publication date: 26 September 2024

Nassir Ul Haq Wani and Mohammad Mirwais Rasa

This study aims to explore the possibilities for regional (intra and inter) trade between Central Asia and South Asia (CASA) by examining several frameworks that impact the…

66

Abstract

Purpose

This study aims to explore the possibilities for regional (intra and inter) trade between Central Asia and South Asia (CASA) by examining several frameworks that impact the economic integration of these regions.

Design/methodology/approach

The study uses five indices, specifically the export diversification index, export survival rates, export sophistication, revealed comparative advantage and intra-industry trade index in South and Central Asia, from 2005 to 2021.

Findings

The findings show a twofold increase in the potential trade value between the two regions compared to the actual level. The intra-regional trade in Central Asia accounts for less than 5% of trade with all countries, whereas the intra-regional trade in South Asia accounts for 1.5%, and the inter-regional trade accounts for between 0.2 and 4% of total trade to all destinations. The intensity of trade measurements shows that inter-regional trade flows are modest because they make up a relatively small percentage of the entire trade volume, which includes all destinations, ranging from 0.2 to 4 %.

Research limitations/implications

These findings have a significant impact on the successful implementation of trading-related measures, initiatives and institutional mechanisms for encouraging improved trade between and within both regions.

Practical implications

Export diversification initiatives aim to provide favourable outcomes for all parties involved, focusing on expanding the range of goods and services exchanged. CASA countries with higher diversification have shown more favourable outcomes than those relying on a restricted range of products. The authors expect policies promoting a broader array of exports to boost market shares, while maintaining a narrow focus may hinder new export prospects. In addition, regional value chains and policy initiatives promoting trade and investment could lead to increased value additions to exports, technological transfers and job creation.

Social implications

The study emphasises the significance of trade-related policies, programmes and institutional mechanisms in promoting trade between CASA. It emphasises the need for policies that support investment and trade, adopt new requirements of the Agreement on Trade Facilitation and promote diversity and latency.

Originality/value

Based on economic analysis, the study offers practical insights and strategies for businesses in the CASA regions. It also provides analytical tools for academics and decision makers, as well as policy and programme recommendations for government agencies, development partners, researchers and individuals interested in trade dynamics in these regions.

Details

Competitiveness Review: An International Business Journal , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1059-5422

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Article
Publication date: 20 December 2022

Javaid Ahmad Wani and Shabir Ahmad Ganaie

The current study aims to map the scientific output of grey literature (GL) through bibliometric approaches.

558

Abstract

Purpose

The current study aims to map the scientific output of grey literature (GL) through bibliometric approaches.

Design/methodology/approach

The source for data extraction is a comprehensive “indexing and abstracting” database, “Web of Science” (WOS). A lexical title search was applied to get the corpus of the study – a total of 4,599 articles were extracted for data analysis and visualisation. Further, the data were analysed by using the data analytical tools, R-studio and VOSViewer.

Findings

The findings showed that the “publications” have substantially grown up during the timeline. The most productive phase (2018–2021) resulted in 47% of articles. The prominent sources were PLOS One and NeuroImage. The highest number of papers were contributed by Haddaway and Kumar. The most relevant countries were the USA and UK.

Practical implications

The study is useful for researchers interested in the GL research domain. The study helps to understand the evolution of the GL to provide research support further in this area.

Originality/value

The present study provides a new orientation to the scholarly output of the GL. The study is rigorous and all-inclusive based on analytical operations like the research networks, collaboration and visualisation. To the best of the authors' knowledge, this manuscript is original, and no similar works have been found with the research objectives included here.

Details

Library Hi Tech, vol. 42 no. 1
Type: Research Article
ISSN: 0737-8831

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Publication date: 17 June 2024

Nassir Ul Haq Wani

Recognising the significance of international trade in economic growth, this research explores the drivers of exports in South Asian Association for Regional Cooperation countries…

Abstract

Recognising the significance of international trade in economic growth, this research explores the drivers of exports in South Asian Association for Regional Cooperation countries from 2008 to 2021. The study employs the export demand model and the augmented exports supply model and utilises pooled time-series data. This study questions whether export supply decisions are based on traditional trade model factors, emerging trading realities or macroeconomic variables. The model based on fixed effects evaluates the connection between exports and their possible drivers. Traditional export supply models suggest determinants like production capacity, variable cost and relative pricing influencing South Asian export supply performance substantially. Changes in trade, for example, have a substantial impact on export supply, demonstrating that the trade liberalisation procedure promotes growth in exports, compression in imports and technological advancement. The worsening state of the energy industry and growing levels of corruption have proved to be significant deterrents to export supply decisions. The results verify foreign direct investment's positive and medium influence on the expansion of exports. Other variables, however, such as GDP and its growth, Official Development Assistance (ODA), development expenditure, indirect taxation, labour supply and the exchange rate of currencies, have a positive impact on the flow of exports. Furthermore, the data corroborate the notion that increased savings have a significant beneficial influence on the flow of exports. The study proposes that concerned governments examine their export policies and adopt new policies adapted in accordance with changing circumstances with the goal of increasing and enhancing the performance of exports.

Details

Policy Solutions for Economic Growth in a Developing Country
Type: Book
ISBN: 978-1-83753-431-9

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Article
Publication date: 18 May 2020

Weihua Liu, Wanying Wei, Cheng Si, Dong Xie and Lujie Chen

This study empirically examines the impact of announcements on supply chain strategic collaboration (SCSC) on companies' shareholder value.

1156

Abstract

Purpose

This study empirically examines the impact of announcements on supply chain strategic collaboration (SCSC) on companies' shareholder value.

Design/methodology/approach

This study analyzes changes in shareholder value of companies listed in China based on data of 208 SCSC announcements. The signaling theory is applied to determine correlation among SCSC announcements and the market. An event study is used to estimate the stock market reaction to SCSC announcements. The common market model estimates stock abnormal returns after the event. The least squares method and regression model calculate the model parameter value.

Findings

There is a positive and statistically significant relationship between SCSC announcement and shareholder value. Market reaction to product development collaboration is significantly higher than to technology-sharing collaboration, market collaboration, and other SCSC types. The market reacts more positively to suppliers and companies with greater supply chain control power than to buyers and companies with lower control power. Announcements from the service supply chain can lead to stronger market reactions than those from manufacturing supply chains.

Practical implications

The findings provide a systematic assessment of how SCSC announcements contribute to firms' shareholder value. The result provides a benchmark of value promotion that can be expected from SCSC announcements.

Originality/value

This study fills the research gap that using secondary data to assess changes in companies’ shareholder value caused by SCSC announcements and firstly examines these changes by constructing the signaler–signal–receiver progress based on signaling theory. The research results provide a new reference and inspiration for deeper understanding of the impact mechanism of SCSC. Furthermore, this study contributes to the development of the signaling theory using an empirical study in an emerging market, China.

Details

International Journal of Operations & Production Management, vol. 40 no. 4
Type: Research Article
ISSN: 0144-3577

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Book part
Publication date: 17 June 2024

Nassir Ul Haq Wani

Using different trade indices spanning 2018–2021, this chapter investigates Afghanistan's current patterns, prospects and barriers for intra- and inter-regional trade…

Abstract

Using different trade indices spanning 2018–2021, this chapter investigates Afghanistan's current patterns, prospects and barriers for intra- and inter-regional trade perspectives, emphasising the different pathways by which Afghanistan trades with Central Asian economies. The empirical findings demonstrate that the anticipated significance of trade between Afghanistan and Central Asia is double compared to the existing levels of trade. Furthermore, the analysis encompasses the categorisation of sectors based on the intensity of usage of production factors like resource, labour and technology. The analysis further elaborates on Afghanistan's trade potential with Central Asia and vice versa by highlighting the comparative advantage, diversification, complementarity and similarity in trade. The findings suggest that larger economies are rated higher than smaller ones as size and development level are essential factors in regional trade development. The most effective channels of regional trade development are price competitiveness measures, intra-industry trade and trade complementarities. These findings have a substantial influence on the development of different trade policy efforts to stimulate investment and trade within and among the two regions.

Details

Policy Solutions for Economic Growth in a Developing Country
Type: Book
ISBN: 978-1-83753-431-9

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Book part
Publication date: 17 June 2024

Nassir Ul Haq Wani

The benefits of global trade are primarily attributed to reducing trade distortions between trading partners. The anticipated promise of a progressive diminution in tariffs…

Abstract

The benefits of global trade are primarily attributed to reducing trade distortions between trading partners. The anticipated promise of a progressive diminution in tariffs throughout the globe was, regrettably, steadily superseded by non-tariff measures (NTMs). However, the impact of these NTMs is only sometimes evident since it occurs in various disguises. NTMs significantly influence trade in the SAARC, mandating prompt attention. The question is how much internal trade will expand if NTMs are repealed. Based on statistics from 2015 to 2020, the study endeavours to quantify the impact of NTMs on Afghanistan's trade volume within the SAARC region, primarily targeting four export destinations (Bangladesh, India, Pakistan and Sri Lanka). Using trade freedom scores as a proxy for trade distortions, it has been determined that Afghanistan's magnitude of export earnings is significantly lower due to NTMs imposed by its importing trading partners. According to the findings, a 1% rise in tariffs and NTMs applied by importing countries diminishes Afghanistan's exports by 1.23%.

In contrast, the impact of tariffs alone lowers Afghanistan's exports by 1.13%. The incidence of NTMs also devoid actual Afghanistan exports by US$ 5.70 million, equal to a 0.029% loss of Afghanistan's GDP. The calculations also reveal that lowering or eliminating non-tariff barriers has diverse trade growth effects in different trade groupings. The study recommends a serious NTM-oriented trade policy dialogue that is liberal and guarantees regional integration, thereby promoting and ensuring the future of Afghanistan's economic laurels and stability.

Details

Policy Solutions for Economic Growth in a Developing Country
Type: Book
ISBN: 978-1-83753-431-9

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Article
Publication date: 15 February 2022

Jin Tian, Wanying Zhang, Yaqing Mao and David Gurr

Principal leadership is an important external environmental factor that affects and alleviates teachers' job burnout. The purpose of this paper is to explore the deep internal…

2460

Abstract

Purpose

Principal leadership is an important external environmental factor that affects and alleviates teachers' job burnout. The purpose of this paper is to explore the deep internal mechanisms of the influence of principal transformational leadership on teacher job burnout in the context of Chinese teachers.

Design/methodology/approach

A cluster sampling method was used to conduct a questionnaire survey on 990 elementary school teachers in 14 primary schools in Beijing. This study uses a structural equation model to analyze the chain intermediary effect of social-emotional competence and the student-teacher relationship between transformational leadership and teachers' job burnout.

Findings

The results reveal that transformational leadership has a significant negative predictive effect on teachers' job burnout; this kind of leadership affects teachers' job burnout through a chain intermediary effect of social and emotional competence and student-teacher relationship.

Originality/value

This research has discovered that teacher burnout is the result of the interaction of external environmental and individual internal factors. Transformational leadership, as an external environmental factor, positively predicts the internal social-emotional competence of the teacher, and then the teacher's internal social-emotional competence positively predicts the external student-teacher relationship. Finally, the teacher-student relationship of the external environment negatively predicts the job burnout of internal individual teachers.

Details

Journal of Educational Administration, vol. 60 no. 4
Type: Research Article
ISSN: 0957-8234

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