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Article
Publication date: 8 February 2021

Bo Pan, Xiao Yi Yang and Rui Hua Yang

The purpose of this article is to design and make fabrics with colorful melange yarns spun by a three-channel rotor spinning machine.

Abstract

Purpose

The purpose of this article is to design and make fabrics with colorful melange yarns spun by a three-channel rotor spinning machine.

Design/methodology/approach

The three-channel digital rotor-spun machine controls the blending proportion by adjusting the feeding of three-primary color fiber slivers online, so that a piece of colorful yarn presents a variety of colors along the longitudinal direction where constant yarn linear density can be produced flexibly. Various fabric patterns can be produced by three-channel rotor-spun colorful melange yarn with different periods of color.

Findings

The fabric, made by the rotor-spun colorful melange yarn, is rich in color, clear in layers, soft in the hand and has a hazy three-dimensional effect. The product is environmentally friendly and saves energy.

Originality/value

An innovative idea to develop various colorful fabrics is proposed by combining their pattern with colorful melange yarn produced by a three-channel rotor spinning machine.

Details

International Journal of Clothing Science and Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0955-6222

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Article
Publication date: 25 January 2019

Jih-Hua Yang, Cheng-Chen Lin, Shih-Chieh Fang and Ching-Ying Huang

The vast majority of research on traditional leadership focuses on effective and positive leadership behavior. However, scholars have begun to pay attention to the impact…

Abstract

Purpose

The vast majority of research on traditional leadership focuses on effective and positive leadership behavior. However, scholars have begun to pay attention to the impact of negative leadership behavior on employees and the organization. Hence, the main purpose is to examine the effects of abusive supervision. While the literature does not examine the time future orientation of the effects of abusive supervision, the purpose of this paper is to fill up this gap and examine the moderating role of future orientation.

Design/methodology/approach

A total of 584 valid questionnaires were collected from respondents aged between 21 and 30 years old and analyzed using the hierarchical regression and structural equation modeling method.

Findings

The main results show that abusive supervision positively affects counterproductive work behavior and future orientation positively moderates both the relationship between abusive supervision and originality behavior and the relationship between abusive supervision and organizational citizenship behavior (OCB).

Originality/value

This study demonstrates the moderating roles of future orientation in the effects of abusive supervision, and thus deepens the understanding of the moderating effect. It departs from the prior works and presents a more detailed examination examines the distinct dimensions of personality traits. It makes three main theoretical contributions. First, it introduces uncertainty management theory as a means to interpret the effects of abusive supervision. Second, it contributes to the literature on abusive supervision. Third, it does not lead to discovery as an OCB and originality, conclusions which differ from the results suggested in past literature.

Open Access
Article
Publication date: 17 July 2020

Nani Maiya Sujakhu, Sailesh Ranjitkar, Hua Yang, Yufang Su, Jianchu Xu and Jun He

This paper aims to document the adaptation strategies developed by local farmers to adjust to climate change and related hazards in Lijiang Prefecture in Southwest China…

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1013

Abstract

Purpose

This paper aims to document the adaptation strategies developed by local farmers to adjust to climate change and related hazards in Lijiang Prefecture in Southwest China, and quantify the determinants of the adaptation measures.

Design/methodology/approach

The study conducted a household survey with 433 respondents in Lijiang to documents adaptation measures. The authors used a multivariate probit model to quantify five categories of adaptation measures against a set of household features, extension and information, resources, social network, financial assets and perception variables.

Findings

The most significant determinants consisted of information on early climate warnings and impending hazards, ownership to land and livestock, irrigation membership in community-based organisations, household savings, cash crop farming and perceptions of climate change and its related hazards. Adaptation strategies and policies highlighting these determinants could help to improve climate change adaptation in the region.

Originality/value

This study quantified the determinants of adaptive strategies and mapped important determinants for the region that will provide farmers with the appropriate resources and information to implement the best practices for adapting to climatic changes. The method and findings could be useful and easily replicable for future agriculture policies.

Details

International Journal of Climate Change Strategies and Management, vol. 12 no. 4
Type: Research Article
ISSN: 1756-8692

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Article
Publication date: 19 May 2021

Hua-Lin Yang, Xiulong Li, Weiwei Sun, Fang Deng and Jie Du

This paper aims to present the mixed elastohydrodynamic lubrication (EHL) model and obtain the leakage characteristics for the skeleton reciprocating oil seal.

Abstract

Purpose

This paper aims to present the mixed elastohydrodynamic lubrication (EHL) model and obtain the leakage characteristics for the skeleton reciprocating oil seal.

Design/methodology/approach

The model consists of a finite element analysis of the contact pressure, a fluid mechanics analysis of the fluid film, a contact analysis of the asperity contact pressure, a deformation analysis of the seal lip and an iterative numerical simulation process.

Findings

Simulation results show that the leakage is in direct proportion to the seal roughness and speed, and in inverse proportion to the fluid viscosity. Comparisons with the experimental results verify the validity of the mixed EHL model.

Originality/value

This study provides a helpful method to calculate the leakage of the skeleton reciprocating oil seal, which shortens its development cycles.

Details

Industrial Lubrication and Tribology, vol. 73 no. 4
Type: Research Article
ISSN: 0036-8792

Keywords

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Article
Publication date: 20 February 2019

Guisheng Gan, Da-quan Xia, Xin Liu, Cong Liu, Hanlin Cheng, Zhongzhen Ming, Haoyang Gao, Dong-hua Yang and Yi-ping Wu

With continuous concerning on the toxic of element Pb, Pb-free solder was gradually used to replace traditional Sn-Pb solder. However, during the transition period from…

Abstract

Purpose

With continuous concerning on the toxic of element Pb, Pb-free solder was gradually used to replace traditional Sn-Pb solder. However, during the transition period from Sn-Pb to Pb-free solder, mixing of Sn-Pb and Pb-free is inevitable occurred in certain products, and in China where Sn-Pb solder was still used extensively in certain areas especially. Correspondingly, understanding reliability of Sn-Pb solder joints was very important, and further studies were needed.

Design/methodology/approach

Thermal shock test between −55°C and 125 °C was conducted on Sn-37Pb solder bumps in the BGA package to investigate the microstructure evolution and the growth mechanism of interfacial intermetallic compound (IMC) layer. The effects of thermal shock on the mechanical property and fracture behavior of Sn-37Pb solder bumps were discussed.

Findings

Pb-rich phase was coarsened and voids were increased at first; Pb-rich phase was refined and voids were decreased secondly with the increase of thermal shock cycles; the shear strength of solder bumps was slightly decreased after thermal shock, but was back up to 73.67MPa at 2,000 cycles; interfacial IMCs of solder bumps was from typical scallop-type into smooth, the composition of IMCs was from Cu6Sn5 into Cu6Sn5 and Cu3Sn after thermal shock with 1,500 and 2,000 cycles; 20.0 per cent of solder bumps at 1,500 cycles and 9.5 per cent of solder bumps at 2,000 cycles were failure respectively.

Originality/value

Compared with the board level test method, the impact shear test for the single solder bump is more convenient and economical and is actively pursued by the industries. The shear strength of solder bumps was slightly decreased after thermal shock, but was back up to 73.67 MPa at 2,000 cycles; 20.0 per cent of solder bumps at 1,500 cycles and 9.5 per cent of solder bumps at 2,000 cycles were failure.

Details

Soldering & Surface Mount Technology, vol. 31 no. 2
Type: Research Article
ISSN: 0954-0911

Keywords

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Article
Publication date: 23 June 2020

Nan Hua, Arthur Huang, Marcos Medeiros and Agnes DeFranco

This study aims to examine how operator type moderates the relationship between hotel information technology (IT) expenditures and operating performance.

Abstract

Purpose

This study aims to examine how operator type moderates the relationship between hotel information technology (IT) expenditures and operating performance.

Design/methodology/approach

By adapting and extending O’Neill et al.’s (2008) and Hua et al.’s (2015) research, this study constructed an empirical model and tested proposed hypotheses, with Newey and West (1994) errors computed to accommodate potential heteroscedasticity and autocorrelation issues.

Findings

Operator type moderates the impact of hotel IT expenditures on operating performance. In particular, it appears that the operator type of franchising exerts a stronger moderating effect compared with other operator types explored.

Practical implications

This study, as the first of its kind, shows that the choice of operator type shapes how a hotel can effectively use IT expenditures to improve operating performance. This finding can be beneficial for hotel owners when making operator type decisions. In addition, operator type moderates the direct impact of IT expenditures on revenues and gross operating income. This study’s results show that franchised hotels seem to use IT expenditures more effectively compared with independently owned hotels.

Originality/value

This study contributes both theoretically and practically to understand how operator type moderates the relationship between IT expenditures and hotel performance. The research outcome provides a more holistic view that governs the relationships between IT expenditures, operator type and operating performance.

Details

International Journal of Contemporary Hospitality Management, vol. 32 no. 8
Type: Research Article
ISSN: 0959-6119

Keywords

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Article
Publication date: 25 September 2020

Nan Hua

This paper aims to examine the impacts of IT capabilities on hotel competitiveness.

Abstract

Purpose

This paper aims to examine the impacts of IT capabilities on hotel competitiveness.

Design/methodology/approach

This study adapts and extends Hua et al. (2015) and O’Neill et al. (2008) by incorporating the specific measures of IT expenditures as proxies for the relevant IT capabilities to explore the impacts of IT capabilities on hotel competitiveness.

Findings

This study finds that expenditures on IT Labor, IT Systems and IT Websites exert different impacts on hotel competitiveness. In addition, IT capabilities exert both contemporary and lagged effects on hotel competitiveness.

Originality/value

This study is the first that uses financial data to capture direct measures of individual IT capabilities and tests the individual impacts of IT capabilities on hotel competitiveness from both contemporaneous and lagged perspectives. It uses a large same store sample of hotels in the USA from 2011 to 2017; as a result, the study results can be reasonably representative of the hotel population in the USA.

研究目的

本论文旨在检验IT能力对酒店竞争力的影响。

研究设计/方法/途径

本论文延用 Hua et al. (2015) 和 O’Neill et al. (2008) 的研究, 结合IT支出的具体指标作为IT能力的指数, 以探索IT能力对酒店竞争力的影响。

研究结果

研究发现支出对IT人力、IT系统、和IT网站对酒店竞争力有着不同的影响。此外, IT能力对酒店竞争力具有短期和长期的影响。

研究原创性/价值

本论文是首篇使用财务数据来找出IT能力的指数并且检测IT能力对酒店竞争力短期和长期的具体影响。本论文使用美国2011年至2017年同一个酒店的大型数据; 因此, 研究结果可以代表美国酒店基本现状。

Details

Journal of Hospitality and Tourism Technology, vol. 11 no. 3
Type: Research Article
ISSN: 1757-9880

Keywords

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Article
Publication date: 8 April 2020

Nan Hua, Bin Li and Tingting(Christina) Zhang

The purpose of this study is to present a holistic literature review on crime research in the hospitality and tourism field.

Abstract

Purpose

The purpose of this study is to present a holistic literature review on crime research in the hospitality and tourism field.

Design/methodology/approach

This literature review included 109 crime-related academic papers in seven primary sources, namely, ScienceDirect, EBSCOhost’s hospitality and tourism complete, Emerald Management eJournals, Sage Journals, Google Scholar, Scopus and Web of Science.

Findings

From the exploration and synthesis of 109 articles, the following categories of crime research in the hospitality and tourism field emerged as follows: classification of crime research in the hospitality and tourism field; diversity of tourists, crime and risk perceptions; the impacts of crime on the hospitality and tourism industry; and crime control from stakeholders’ papers. In addition, this study advances crime research by proposing six research priorities for future investigation.

Practical implications

Tourism stakeholders are advised to achieve better cooperation in crime control under the guidance of the crime prevention model. High-technology tools are encouraged to be applied to detect and track criminal activities. Meanwhile, diverse applications of the media should be used as useful tools to control criminal activities in the hospitality and tourism industry.

Originality/value

This paper fills a gap by presenting the first comprehensive overview of crime research in the hospitality and tourism field in the past few decades and proposing six priorities for this research stream.

Details

International Journal of Contemporary Hospitality Management, vol. 32 no. 3
Type: Research Article
ISSN: 0959-6119

Keywords

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Article
Publication date: 2 November 2015

Xiao-Hua Yang, Chong-Li Di, Jun He, Jian Zhang and Yu-Qi Li

– The purpose of this paper is to assess the water resources vulnerability (WRV) rationally in Haihe River Basin (HRB) using set pair analysis (SPA) theory.

Abstract

Purpose

The purpose of this paper is to assess the water resources vulnerability (WRV) rationally in Haihe River Basin (HRB) using set pair analysis (SPA) theory.

Design/methodology/approach

An improved intelligent set pair analysis (IISPA) model is established, in which intelligent SPA theory is introduced and the weights are determined by use of the maximum entropy principle and the improved analytic hierarchy process method. The index systems and criteria of WRV assessment in terms of water cycle, socio-economy, and ecological environment are established based on the analysis of sensibility and adaptability.

Findings

The authors apply IISPA to the WRV assessment of seven administrative divisions in HRB. Results show IISPA can fully take advantage of certain and uncertain information compared with fuzzy assessment and topsis assessment models. For present situation, Shanxi, Shandong, Tianjing, Inner Mongolia, Hebei are higher, Henan and Beijing are the middle vulnerability. But Henan will become worse under climate change scenario II and IV.

Research limitations/implications

The analysis results may be affected by the limited climate change data.

Practical implications

It is helpful for further research to the complexity analysis of water resources system.

Social implications

This paper will have an important impact on water resources sustainable utilization.

Originality/value

This is the first time to utilize IISPA method to analyze the WRV of seven administrative divisions in HRB. This paper provides an important theoretical support for water resources management.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 25 no. 8
Type: Research Article
ISSN: 0961-5539

Keywords

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Article
Publication date: 10 October 2008

Nabil El‐Sawalhi, David Eaton and Rifat Rustom

This paper seeks to introduce an evolved hybrid genetic algorithm and neural network (GNN) model. The model is developed to predict contractor performance given the…

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1010

Abstract

Purpose

This paper seeks to introduce an evolved hybrid genetic algorithm and neural network (GNN) model. The model is developed to predict contractor performance given the current attributes in a process to pre‐qualify the most appropriate contractor. The predicted performance is used to pre‐qualify the contractors.

Design/methodology/approach

Hypothetical and real‐life case studies from projects executed in the Gaza Strip and West Bank were collected through structured questionnaires. The evaluation of the contractor's attributes and the corresponding actual performance of the contractor in terms of time, cost, and quality overrun (OR) were collected. The weighted contractor's attributes were used as inputs to the GNN model. The corresponding time, cost, and quality ORs for the same cases were fed as outputs to the GNN model in a supervised learning back propagation neural network (NN). (The adopted training and testing process to develop a trained model is presented.) The training process, including choosing the topology of the required NN using genetic algorithms, is explained.

Findings

The results revealed that there is a satisfactory relationship between the contractor attributes and the corresponding performance in terms of contractor's deviation from the client objectives. The accuracy of the model in terms of mean absolute percentage error (MAPE), R2, average absolute error and mean square error revealed that the model has sufficient accuracy for implementation. The average MAPE for time, cost and quality OR is 15 per cent. Consequently, the model accuracy is 85 per cent.

Originality/value

The GNN model is able to predict future contractor performance for given attributes.

Details

Construction Innovation, vol. 8 no. 4
Type: Research Article
ISSN: 1471-4175

Keywords

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