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Article
Publication date: 30 October 2019

Tingting Jiang, Qian Guo, Shunchang Chen and Jiaqi Yang

The headlines of online news are created carefully to influence audience news selection today. The purpose of this paper is to investigate the relationships between news…

Abstract

Purpose

The headlines of online news are created carefully to influence audience news selection today. The purpose of this paper is to investigate the relationships between news headline presentation and users’ clicking behavior.

Design/methodology/approach

Two types of unobtrusive data were collected and analyzed jointly for this purpose. A two-month server log file containing 39,990,200 clickstream records was obtained from an institutional news site. A clickstream data analysis was conducted at the footprint and movement levels, which extracted 98,016 clicks received by 7,120 headlines ever displayed on the homepage. Meanwhile, the presentation of these headlines was characterized from seven dimensions, i.e. position, format, text length, use of numbers, use of punctuation marks, recency and popularity, based on the layout and content crawled from the homepage.

Findings

This study identified a series of presentation characteristics that prompted users to click on the headlines, including placing them in the central T-shaped zones, using images, increasing text length properly for greater clarity, using visually distinctive punctuation marks, and providing recency and popularity indicators.

Originality/value

The findings have valuable implications for news providers in attracting clicks to their headlines. Also, the successful application of nonreactive methods has significant implications for future user studies in both information science and journalism.

Details

Aslib Journal of Information Management, vol. 72 no. 1
Type: Research Article
ISSN: 2050-3806

Keywords

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Article
Publication date: 23 February 2021

Naiding Yang, Min Guo, Jingbei Wang and Yanlu Zhang

The purpose of this paper is to investigate the influence of two dimensions of relational risks, namely, opportunism behavior and interest conflict, on knowledge flow and…

Abstract

Purpose

The purpose of this paper is to investigate the influence of two dimensions of relational risks, namely, opportunism behavior and interest conflict, on knowledge flow and to explore the moderating effect of network power among these untested relationships and to examine the positive effect of opportunism behavior and interest conflict.

Design/methodology/approach

This paper adopts survey data collected from 180 enterprises in China's high-technology industry and examines the relationship between relational risks, network power and knowledge flow.

Findings

This research empirically shows that opportunism behavior and interest conflict significantly and negatively impact on knowledge flow. Those relationships are positively moderated by network power.

Research limitations/implications

To be more generalized to the high-technology industry, future research should adopt the quantitative research, which can obtain more comprehensive information to explore the nature of phenomenon. The future research can also combine with other variables. In addition, this research extends the current literature by investigating the relationship of so far understudied theorized antecedents.

Originality/value

This research enriches the related network perspective literature by providing new insight combining relational risks and knowledge flow. Especially, the moderating effect of network power is empirically examined.

Details

Management Decision, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0025-1747

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Article
Publication date: 6 July 2020

Yi-Hsin Lin, Yanzhe Guo, Chan-Joong Kim, Po-Han Chen and Mingwei Qian

In the process of undertaking overseas construction projects, relational governance has become indispensable for project stakeholders. This study examines how relational…

Abstract

Purpose

In the process of undertaking overseas construction projects, relational governance has become indispensable for project stakeholders. This study examines how relational governance influences contractors' adaptability to foreign situations and whether such associations are positively moderated by international environmental complexity.

Design/methodology/approach

A crosssectional survey methodology was applied to collect primary data through questionnaires sent to domestic contractors in China and South Korea (hereafter Korea). Multiple regression analysis was used to test the effects of four dimensions of relational governance on contractor adaptability. Thereafter, the Chinese and Korean subsamples were tested separately through moderated regression analysis to explore differences in the influence of relational governance on adaptability.

Findings

The results showed that quality communication, favor exchange and establishing an emotional relationship significantly and positively affected a contractor’s adaptability. However, there were significant differences between the Chinese and Korean international contractors in terms of the moderating effects of international environment complexity.

Research limitations/implications

East Asian engagement in international development is not limited to China and Korea alone, and the study should be replicated using large representative samples from more countries, such as Japan, to gain a fuller understanding of the influence of relational governance.

Originality/value

The results have great significance for the managers of international contractors in East Asian countries and contribute to the research on relational governance and contractor adaptability.

Details

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

Keywords

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Article
Publication date: 9 January 2017

Guoxin Xie, Ziyi Cui, Lina Si and Dan Guo

This paper aims to introduce a series of experimental results which are the extension of our previous novel observations (Xie et al., Soft Matter, 2011), which could be…

Abstract

Purpose

This paper aims to introduce a series of experimental results which are the extension of our previous novel observations (Xie et al., Soft Matter, 2011), which could be helpful for revealing the lubrication failure mechanism in bearings when they are exposed to an electrical environment.

Design/methodology/approach

An experimental apparatus where a ball was in contact with a glass disk coated with a semi-reflective chromium layer. A small volume of oil droplet was put into the microgap of the ball-disk contact. Then, a potential was applied onto the oil micropool formed by the droplet surrounding the contact region.

Findings

It has been found that destabilization of the low-conducting oil micropool around the contact region could be induced after applying a potential. Thin oil films could be drained out of the oil pool and spread on the tribopair surfaces, resulting in the depletion of the oil pool. When the applied potential was increased, the occurrence of spreading would be easier and its development would be more obvious. In contrast, the electrospreading behavior would be suppressed when the oil viscosity, contact load and oil pool size were increased. Thermocapillary force due to thermal effect as a result of the current flow near the oil pool border has been proposed as the main driving force for the spreading behavior. The influences of the operating parameters have been ascribed to the change of the electric current near the oil pool border as well as the corresponding variations in the temperature rise and the surface tension of the oil pool.

Originality/value

This is the first study to directly observe that the lubricant oil micropool around the contact region could deplete after applying a potential, potentially resulting in oil starvation in the contact region.

Details

Industrial Lubrication and Tribology, vol. 69 no. 1
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 5 May 2020

Congliang Fei, Pengfei Xiahou and Fujun Wang

This study aims to focus on the grid connected inverter.

Abstract

Purpose

This study aims to focus on the grid connected inverter.

Design/methodology/approach

The grid connected inverter for harmonic suppression was designed, the topological structure of the inverter and the design of LCL filter were analyzed, then a PIR controller was proposed and finally simulation and experiment were carried out.

Findings

The simulation results showed that the distortion rates of the 5th, 7th and 11th harmonics under PIR control were 0.14%, 0.13% and 0.06%, respectively, which were significantly lower than that under PI control. The system test results also showed that the current waveform under PI control was rough and total harmonic distortion (THD) content was 3.8%; under PIR control, the grid connected current waveform was relatively smooth, with fewer spikes and burrs, and the THD content was 1.9%, indicating that the harmonics were effectively suppressed.

Originality/value

The experimental results verify that the inverter and PIR controller designed in this study are effective for harmonic suppression. This work makes some contributions to the improvement of the effect of harmonic suppression and promotion of the better application of grid connected inverter.

Details

Journal of Engineering, Design and Technology , vol. 18 no. 5
Type: Research Article
ISSN: 1726-0531

Keywords

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Article
Publication date: 28 February 2019

Lihan Zhang, Peter Fenn and Yongcheng Fu

The purpose of this paper is to identify and analyse factors that affect contractors’ behavioural strategies in resolving disputed claims.

Abstract

Purpose

The purpose of this paper is to identify and analyse factors that affect contractors’ behavioural strategies in resolving disputed claims.

Design/methodology/approach

Factors were explored by a literature review and an open-ended questionnaire survey. In total, 9 hypotheses involving 12 factors were developed accordingly. Then a structured questionnaire survey was conducted, and 248 valid questionnaires were received from Chinese contractors. Partial least squares structural equation modelling was employed to test the hypotheses.

Findings

Factors that have the largest impacts on the contractual approach and the relational approach regarding obliging and compromising are favourability of evidence, time pressure and reputation, respectively. Unexpected results show that obliging behaviours are negatively correlated with procedural fairness but positively correlated with occurrence time of the dispute.

Research limitations/implications

The results are based on correlation, although the research design improves the internal validity. Furthermore, this study belongs to single-level research. In the future, researchers can conduct multilevel research to enrich theories.

Practical implications

The findings not only enhance practitioners’ understanding of the factors influencing contractors’ behavioural strategies when dealing with disputed claims, but also offer insights into both parties’ ex ante focus of attention on specific factors to facilitate the subsequent dispute resolution.

Originality/value

This study furnishes a nuanced picture of multiple factors’ impacts on contractors’ behavioural strategies of claim-related dispute resolution, and thus supplements the relevant construction dispute management literature. From the perspective of contractual governance, it is one of those exploring drivers of contract application in problem situations. It extends the body of knowledge on this topic and hopefully will encourage more research on contractual governance from the reactive perspective.

Details

Engineering, Construction and Architectural Management, vol. 26 no. 3
Type: Research Article
ISSN: 0969-9988

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Article
Publication date: 14 September 2015

Shanhua Qian

This paper aims to present the probable factors resulting in the lubrication failure in detail, based on the experimental study on the tribological property of the…

Abstract

Purpose

This paper aims to present the probable factors resulting in the lubrication failure in detail, based on the experimental study on the tribological property of the low-viscosity lubricant subjected to the different slide/roll ratios and loads under micro confined space.

Design/methodology/approach

The interference images and the traction coefficients of the spindle oil with low viscosity were recorded using a ball-on-disc test rig. Moreover, the corresponding flash temperatures were obtained via an analytical method.

Findings

More scratches can be observed in the interference images with higher slide/roll ratios. The applied load plays a significant role in the variation of the traction coefficient under different slide/roll ratio, and higher load resulted in lower traction coefficient. The flash temperature generated in the point contact zone non-linearly increases with increasing slide/roll ratio.

Originality/value

The flash temperature is not a crucial factor which results in these scratches in the interference images. Moreover, it is probable that the micro confined space is in boundary lubrication at higher shear rates.

Details

Industrial Lubrication and Tribology, vol. 67 no. 6
Type: Research Article
ISSN: 0036-8792

Keywords

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Article
Publication date: 17 August 2020

Jaakko Kujala, Kirsi Aaltonen, Nadezhda Gotcheva and Pertti Lahdenperä

The purpose of this study is to create a framework to analyze approaches for coordination, adaptation and safeguarding of exchanges in interorganizational project networks.

Abstract

Purpose

The purpose of this study is to create a framework to analyze approaches for coordination, adaptation and safeguarding of exchanges in interorganizational project networks.

Design/methodology/approach

An analysis framework to analyze governance in project networks was created based on a systematic review of existing literature. The framework was applied to analyze governance approaches used in a large infrastructure project implemented with an alliance project delivery method to illustrate the practical validity of the framework.

Findings

The analysis framework categorized governance in project networks in six dimensions: goal setting, rewarding, monitoring, roles and decision-making, coordination and capability building. A set of questions for each governance dimension was created and the analysis framework was applied in the context of a project alliance.

Research limitations/implications

The focus of this research is on governance internal to a project network. The authors identified dimensions of governance in project networks and related governance approaches based on a systematic literature review. The practical applicability of the framework was validated in a single case study setting.

Practical implications

The paper introduces a concept of governance in project networks, which takes the perspective that all actors that have an influence on project implementation are part of an interorganizational project network. The focal organization may have had a significant role in the design of governance, but governance also emerged from the network structure of companies and the interactions among them. The analysis framework created in this research can be used to design and analyze governance in different type of project context.

Originality/value

The paper introduces a concept of governance in project networks, which takes the perspective that all actors that have an influence on project implementation are part of an interorganizational project network.

Details

International Journal of Managing Projects in Business, vol. 14 no. 3
Type: Research Article
ISSN: 1753-8378

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Article
Publication date: 14 December 2020

Mostafa Safdari Shadloo

Convection is one of the main heat transfer mechanisms in both high to low temperature media. The accurate convection heat transfer coefficient (HTC) value is required for…

Abstract

Purpose

Convection is one of the main heat transfer mechanisms in both high to low temperature media. The accurate convection heat transfer coefficient (HTC) value is required for exact prediction of heat transfer. As convection HTC depends on many variables including fluid properties, flow hydrodynamics, surface geometry and operating and boundary conditions, among others, its accurate estimation is often too hard. Homogeneous dispersion of nanoparticles in a base fluid (nanofluids) that found high popularities during the past two decades has also increased the level of this complexity. Therefore, this study aims to show the application of least-square support vector machines (LS-SVM) for prediction of convection heat transfer coefficient of nanofluids through circular pipes as an accurate alternative way and draw a clear path for future researches in the field.

Design/methodology/approach

The proposed LS-SVM model is developed using a relatively huge databank, including 253 experimental data sets. The predictive performance of this intelligent approach is validated using both experimental data and empirical correlations in the literature.

Findings

The results show that the LS-SVM paradigm with a radial basis kernel outperforms all other considered approaches. It presents an absolute average relative deviation of 2.47% and the regression coefficient (R2) of 0.99935 for the estimation of the experimental databank. The proposed smart paradigm expedites the procedure of estimation of convection HTC of nanofluid flow inside circular pipes.

Originality/value

Therefore, the focus of the current study is concentrated on the estimation of convection HTC of nanofluid flow through circular pipes using the LS-SVM. Indeed, this estimation is done using operating conditions and some simply measured characteristics of nanoparticle, base fluid and nanofluid.

Details

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

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Article
Publication date: 4 December 2017

Beibei Wu and Yongfu Chen

The purpose of this paper is to estimate the elasticities of demand for different dairy products, such as fresh milk, powdered milk and yoghourt, in urban China.

Abstract

Purpose

The purpose of this paper is to estimate the elasticities of demand for different dairy products, such as fresh milk, powdered milk and yoghourt, in urban China.

Design/methodology/approach

The household survey data are drawn from the annual Urban Household Survey in a Chinese province from 2007 to 2009 by applying a three-stage budgeting approach with zero consumption.

Findings

The major findings show that fluid milk is the most popular dairy product among urban households in Guangdong province, China. Demand for fresh milk is price elastic with the highest value being −1.043, indicating that price-cutting promotion programs could be carried out by dairy enterprises to increase dairy consumption. With improvements in the living standards, the demand for dairy will lead to an expansion in the size of the dairy market and will simultaneously open up new development opportunities for dairy enterprises.

Originality/value

This study adopts an Almost Ideal Demand System model inserted into inverse Mills ratios in the third stage to resolve the common problem of obtaining censored data on zero consumption observations. The research findings will provide a reference for policy makers and for enterprises in developing some price-cutting promotion programs.

Details

British Food Journal, vol. 119 no. 12
Type: Research Article
ISSN: 0007-070X

Keywords

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