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Article
Publication date: 3 January 2017

Shen Qiu, Xugang Zhang, Yawen Li, Ting Sun, Chenlong Wang and Chuanli Qin

The purpose of this paper is to conduct the synthesization of LiFePO4-C (LFP-C) with fine particle size and enhanced electrochemical performance as the positive electrode material…

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Abstract

Purpose

The purpose of this paper is to conduct the synthesization of LiFePO4-C (LFP-C) with fine particle size and enhanced electrochemical performance as the positive electrode material for Li-ion capacitors (LICs) with neutral aqueous electrolyte.

Design/methodology/approach

LFP-C was prepared by using polyethylene glycol (PEG) as a grain growth inhibitor, and the effects of the calcination temperature and PEG content on the structure and morphology of LFP-C were investigated. LICs using environment-friendly, safe and low-cost LiNO3 aqueous electrolyte were assembled with LFP-C as the positive electrode and active carbon as the negative electrode. The electrochemical performances of LFP-C and LICs were studied.

Findings

The results show that the particle size of LFP-C decreases significantly through the introduction of PEG. Cyclic voltammetry results show that the LFP-C prepared at 550°C with 1.0 g PEG exhibits the highest Cpe of 725 F/g at the scanning rate of 5 mA/s. Compared to LFP prepared without PEG, the electrochemical performance of optimized LFP-C dramatically increases due to the decrease of the particle size. Moreover, the LIC assembled with the optimized LFP-C exhibits excellent electrochemical performances. The LIC maintains about 91.3 per cent of its initial Cps after 200 cycles which shows a good cycling performance.

Research limitations/implications

The LFP-C is the suitable positive electrode material for LICs with neutral aqueous electrolyte. LICs can be used in the field of automobiles and can solve the problems of energy shortage and environmental pollution.

Originality/value

Both the LFP-C with fine particle size and its optimal LIC using environment-friendly, safe and low-cost LiNO3 aqueous electrolyte own good electrochemical performances.

Details

Pigment & Resin Technology, vol. 46 no. 1
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 30 January 2024

Ting-Ting Sun and Chi Wei Su

The study investigates the inter-linkages between geopolitical risk (GPR) and food price (FP).

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Abstract

Purpose

The study investigates the inter-linkages between geopolitical risk (GPR) and food price (FP).

Design/methodology/approach

By employing the bootstrap full- and sub-sample rolling-window Granger causality tests.

Findings

The empirical results show that there is a time-varying bidirectional causality between GPR and FP. High GPR leads to a rise in FP, suggesting that geopolitical events usually may disrupt supply and demand conditions in food markets, and even trigger global food crises. However, the negative effect of GPR on FP does not support this view in certain periods. This is mainly because GPR is also related to the global economic situation and oil price, which together have impacts on the food market. These results cannot always be supported by the inter-temporal capital asset pricing model, which states that GPR affects FP in a positive manner. Conversely, there is a positive impact of FP on GPR, indicating that the food market is an effective tool that can reflect global geopolitical environment.

Originality/value

In the context of the Russia–Ukraine conflict, these analyses can assist investors and policymakers to understand the sensitivity of FP to GPR. Also, it will provide significant revelations for governments to attach importance to the role of food price information in predicting geopolitical events, thus contributing to a more stable international environment.

Details

International Journal of Emerging Markets, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1746-8809

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Article
Publication date: 8 June 2020

Bingsheng Liu, Bin Xue, Junna Meng, Xingbin Chen and Ting Sun

The sustainable success of infrastructures is becoming a driving force for advancing urbanization globally. However, to achieve infrastructure sustainable success (ISS), how…

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Abstract

Purpose

The sustainable success of infrastructures is becoming a driving force for advancing urbanization globally. However, to achieve infrastructure sustainable success (ISS), how project management practices (PMPs) play their role remains unexplored in current literature. To this end, an empirical study on whether PMPs play significant impacts on the accomplishment of ISS was conducted.

Design/methodology/approach

This research is based on an empirical survey of domestic and overseas infrastructure projects managed by Chinese companies. 162 data samples were collected and further analyzed deploying structural equation modeling (SEM) on the basis of goal-setting theory. PMP factors derived from the plan-do-check-act (PDCA) ideology, i.e. culture, strategy, implementation and reflection were hypothesized and validated to have direct and indirect relationships with ISS.

Findings

The results of this study indicate that both culture and reflection can directly drive the PMPs toward ISS. Furthermore, it is revealed that by affecting mediator factors of strategy, implementation and reflection, culture is found to present an indirect influence on ISS; by affecting mediator factors of implementation and reflection, Strategy is found to present an indirect influence on ISS and by affecting the mediator factor of reflection, implementation is found to present an indirect influence on ISS.

Originality/value

These findings contribute to the body of knowledge in measuring sustainability success of project management performances by clarifying critical relationships of how PMPs lead to ISS. Prospectively, the outputs of this research will generate informative insights for practitioners to improve their PMPs in the process of pursuing ISS in future infrastructure management practices.

Details

Engineering, Construction and Architectural Management, vol. 27 no. 10
Type: Research Article
ISSN: 0969-9988

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Article
Publication date: 2 September 2021

Gloria Campbell-Whatley, Chris O’Brien, Kim Reddig, Ting Sun and Shaqwana Freeman-Green

Using survey research, the purpose of this study was to examine perceptions of diversity to examine perceptions of diversity and inclusion among majority and non-majority students…

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Abstract

Purpose

Using survey research, the purpose of this study was to examine perceptions of diversity to examine perceptions of diversity and inclusion among majority and non-majority students at a predominately White university (PWI) and a historically Black university (HBCU) observing any patterns of difference between majority and non-majority groups to make inferences regarding students’ sense of belonging, given current national efforts to establish inclusive excellence on university campuses.

Design/methodology/approach

Results based on Likert-scale responses on a validated questionnaire were analyzed using independent samples t-tests to identify differences for each survey item. Eta squared was used as an effect size measure. The PWI and HBCU were then compared by item analysis. A two-way factor analysis of variance (ANOVA) was used to assess the independent impact of each of the universities (i.e. PWI, HBCU) and the interaction of those two factors in their effect on the dependent variables (i.e. race, gender, sexuality).

Findings

Results indicated significant differences between the majority and non-majority groups on multiple items within each university site. Further, significant differences were observed between the universities in perceptions and experiences of diversity and inclusion.

Originality/value

Unique in this study was an examination of perceptions of inclusion at a PWI and an HBCU based not only on non-majority status of race, but also on gender and sexuality with the intention of expanding the research base associated with “sense of belonging” to other groups who have existed as “diverse others” in the context of majority culture dominance.

Details

Journal for Multicultural Education, vol. 15 no. 3
Type: Research Article
ISSN: 2053-535X

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Article
Publication date: 2 February 2024

Renming Liu, Abu Bakar Abdul Hamid and Noor Inayah Ya'akub

Cross-border e-commerce live streaming morphs into an epidemic shopping scenario, yet there is a paucity of research on impulse purchasing in this context. The purpose of this…

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Abstract

Purpose

Cross-border e-commerce live streaming morphs into an epidemic shopping scenario, yet there is a paucity of research on impulse purchasing in this context. The purpose of this study is to empirically investigate the adoption motivation of cross-border e-commerce live streaming and its influence mechanism on intrinsic response and purchase impulse and to highlight the mediating role of browsing behavior.

Design/methodology/approach

Based on the use and gratification lens, a new conceptualization model is established to captivate the theoretical relationships between perceived stimuli, individual attitudes, browsing behavior and impulsive purchases. A questionnaire survey was used to collect cross-sectional data from 427 Malaysian consumers and the estimated framework was validated through AMOS-structural equation modeling technique.

Findings

The findings confirm that perceived interactivity, perceived information usefulness and perceived enjoyment significantly influenced positive attitudes toward live-streaming, which in turn induced impulsive purchases; however, perceived affective gratification did not stimulate positive attitudes. Consumers’ utilitarian browsing had a stronger effect on impulse purchases than hedonic browsing and utilitarian browsing behavior mediated the relationship between positive attitudes and impulse buying; however, hedonic browsing had neither a direct nor a mediating effect on impulsive purchases.

Practical implications

This research enhances the literature on the impact of cross-border e-commerce live streaming, an emerging technology, on consumer behavior and offers managerial implications for e-commerce practitioners to gain insights into consumer impulse purchasing behavior.

Originality/value

The findings revamp conventional knowledge and provide new angles for understanding the formation mechanisms of impulse purchases, motivations for virtual media use and browsing behavior mediating effects in the context of live streaming.

Details

Journal of Systems and Information Technology, vol. 26 no. 1
Type: Research Article
ISSN: 1328-7265

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Abstract

Details

Rutgers Studies in Accounting Analytics: Audit Analytics in the Financial Industry
Type: Book
ISBN: 978-1-78743-086-0

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Article
Publication date: 14 November 2012

Wenwen Zhou, Ting Sun, Huey Hng, Wenjing Zhang, Yang Zhao, Hua Zhang, Jan Ma and Qingyu Yan

Three types of PbTe samples, e.g. nanoparticles, nanowires and bulk ingots, have been prepared. The investigation of the Seebeck coefficient of PbTe nanoparticles and nanowires…

103

Abstract

Three types of PbTe samples, e.g. nanoparticles, nanowires and bulk ingots, have been prepared. The investigation of the Seebeck coefficient of PbTe nanoparticles and nanowires clearly shows the sign change in the temperature range of 575~650 K, which is not observed for bulk ingots. Unfortunately, this temperature range is within the proposed operation temperature range for thermoelectric devices using PbTe and hence, such a change will affect their proper performance. The observed sign change of Seebeck coefficient is not simply caused by the composition variation at high temperature. It is mainly attributed to the extrinsic-to-intrinsic-semiconductor transition for PbTe nanocrystals due to the competing factors between quantum size effect increasing band gap and self-purification process decreasing their charge carrier concentration, which shift the transition point of nanocrystals to lower range as compare to that of bulk samples. Thus, such phenomenon should be considered carefully in the design of thermoelectric devices using semiconductor nanocrystals, which have attracted much attention recently.

Details

World Journal of Engineering, vol. 9 no. 5
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 1 March 2000

Iris Mayne

Defines advertising and looks at the way it is part of the whole home environment. Considers the influence and power various media possess with particular emphasis on women…

9026

Abstract

Defines advertising and looks at the way it is part of the whole home environment. Considers the influence and power various media possess with particular emphasis on women. Addresses how advertising reinforces the existing power roles within society and questions if recent evidence shows any change in this position. Concludes that most individuals are aware of the unrealistic nature of some advertising but advertisers still often represent the “establishment” and stick to proven methods of success.

Details

Equal Opportunities International, vol. 19 no. 2/3/4
Type: Research Article
ISSN: 0261-0159

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Book part
Publication date: 16 September 2022

Ioanna Vasileiadou

The aim of this chapter is to present the various and multifaceted effects that climate change has on tourism and investigate the paradox in which (1) the more the tourism…

Abstract

The aim of this chapter is to present the various and multifaceted effects that climate change has on tourism and investigate the paradox in which (1) the more the tourism industry flourishes, the more it intensifies climate change and (2) the more climate change is intensified, the more the tourism industry goes in decline. The chapter then aims to provide a suggestion for a viable solution that can mitigate the devastating effects of tourism on the environment, and effectively on itself, so that tourism and the environment can both flourish in harmony.

Details

The Academic Language of Climate Change: An Introduction for Students and Non-native Speakers
Type: Book
ISBN: 978-1-80382-912-8

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Book part
Publication date: 2 December 2024

Noreen Kanwal, Chong Soon Meng, Motoki Watabe, Nasaruddin Zainal and Jolyne Khor Kuan Siew

The thriving global tourism industry is a pivotal player in the global economy. It significantly contributes to a substantial carbon footprint through emissions from…

Abstract

The thriving global tourism industry is a pivotal player in the global economy. It significantly contributes to a substantial carbon footprint through emissions from transportation, lodging, and infrastructure. In this study we have conducted a critical analysis of carbon emissions within the tourism industry using previous academic literature and institutional databases. Addressing the importance of measuring carbon footprints, the study delves into the definition of the carbon footprint in this sector, emphasizing the urgent need to comprehend and address its effects. This investigation also centers on the aspect of transportation, which is contributing to carbon emissions in the tourism industry. It explores variations based on transportation modes and discusses mitigation strategies, such as green transit. It also concentrates on accommodation, scrutinizing its environmental impact by evaluating carbon emissions from energy consumption, water usage, and waste generation in hotels and resorts. Emphasis is placed on promoting sustainable and green lodging facilities. Furthermore, this study examines the environmental impact of the tourism industry. Specifically, it examines the carbon footprint associated with infrastructure development. The analysis includes the impact of construction and development, resource consumption, and the role of communities and stakeholders in sustainable tourism planning. Furthermore, an assessment is conducted to examine the obstacles associated with adopting sustainable practices and assess the effectiveness of implemented mitigation strategies within the tourism industry. The concluding section outlines future perspectives and recommendations for research.

Details

The Need for Sustainable Tourism in an Era of Global Climate Change: Pathway to a Greener Future
Type: Book
ISBN: 978-1-83608-669-7

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