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Article
Publication date: 29 April 2021

Huan Wang, Yuhong Wang and Dongdong Wu

To predict the passenger volume reasonably and accurately, this paper fills the gap in the research of quarterly data forecast of railway passenger volume. The research…

Abstract

Purpose

To predict the passenger volume reasonably and accurately, this paper fills the gap in the research of quarterly data forecast of railway passenger volume. The research results can also provide references for railway departments to plan railway operation lines reasonably and efficiently.

Design/methodology/approach

This paper intends to establish a seasonal cycle first order univariate grey model (GM(1,1) model) combing with a seasonal index. GM (1,1) is termed as the trend equation to fit the railway passenger volume in China from 2014 to 2018. The railway passenger volume in 2019 is used as the experimental data to verify the forecasting effect of the proposed model. The forecasting results of the seasonal cycle GM (1,1) model are compared with the traditional GM (1,1) model, seasonal grey model (SGM(1,1)), Seasonal Autoregressive Integrated Moving Average (SARIMA) model, moving average method and exponential smoothing method. Finally, the authors forecast the railway passenger volume from 2020 to 2022.

Findings

The quarterly data of national railway passenger volume have a clear tendency of cyclical fluctuations and show an annual growth trend. According to the comparison of the modeling results, the authors know that the seasonal cycle GM (1,1) model has the best prediction effect with the mean absolute percentage error of 1.32%. It is much better than the other models, reflecting the feasibility of the proposed model.

Originality/value

As the previous grey prediction model could not solve the series prediction problem with seasonal fluctuation, and there are few research studies on quarterly railway passenger volume forecasting, GM (1,1) model is taken as the trend equation and combined with the seasonal index to construct a combination forecasting model for accurate forecasting results in this study. Besides, considering the impact of the epidemic on passenger volume, the authors introduce a disturbance factor to deal with the forecasting results in 2020, making the modeling results more scientific, practical and referential.

Details

Grey Systems: Theory and Application, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2043-9377

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Article
Publication date: 8 August 2019

Yanyu Wang, Xin Su, Huan Wang and Renyu Zou

As the carrier of knowledge, intellectual capital plays a crucial role in technology capability. However, most of the previous studies focus on technological capability…

Abstract

Purpose

As the carrier of knowledge, intellectual capital plays a crucial role in technology capability. However, most of the previous studies focus on technological capability from a static perspective, rather than take dynamic technology capability into consideration. Based on this research gap, the purpose of this paper is to investigate the effects of intellectual capital and its sub-dimensions on dynamic technology capability, measuring by the factor scores of five technological input and output variables.

Design/methodology/approach

The authors combine the system dynamic method and empirical study to guarantee the internal and external validity. Specifically, the authors design the system dynamic model and simulation to analyze the system mechanism of intellectual capital and its sub-dimensions on dynamic technology capabilities from four cause and effect feedback loops. Then, the authors propose eight hypotheses based on this system dynamic model. In the empirical test phase, the authors employed a panel data set pertaining to Chinese manufacturing firms from 2007 to 2017, and adopted the fixed effect panel model according to Hausman test.

Findings

The authors find that intellectual capital efficiency (ICE) and its sub-dimensions (i.e. human capital efficiency, organizational capital efficiency and capital employed efficiency (CEE) have significantly positive impacts on dynamic technology capability. The results also show that the positive effects of ICE and OC on dynamic technology capability would be strengthened in state-owned enterprises compared with non-state-owned enterprises, while this moderation effect is weakened on the relationship between CEE and dynamic technology capability.

Originality/value

In this study, the authors first introduce the system dynamic method to explore the relationship of intellectual capital and dynamic technology capability, which is a valuable trial on combining system science and empirical study. Additionally, the authors continue to expand the dynamic technology capability from the intellectual capital perspective, and also find the moderating effect from the ownership aspect. It is beneficial to the theoretical development of intellectual capital and dynamic technology capability. Furthermore, the authors provide significant inspirations and implications for enterprise’s managers.

Details

Journal of Intellectual Capital, vol. 20 no. 4
Type: Research Article
ISSN: 1469-1930

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Book part
Publication date: 7 December 2016

Abstract

Details

The World Meets Asian Tourists
Type: Book
ISBN: 978-1-78560-219-1

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Article
Publication date: 5 September 2016

Weiwei Li, Chong Wu, He Dong, Huan Wang and Mei Li

Coal and power generation are related upstream and downstream industries. Coal price marketization and electricity price regulation have caused the price of coal to be…

Abstract

Purpose

Coal and power generation are related upstream and downstream industries. Coal price marketization and electricity price regulation have caused the price of coal to be sensitive to the benefits of generators. The paper aims to discuss these issues.

Design/methodology/approach

As a financial tool, contracts for differences can both help balance interests and reduce risks caused by spot price fluctuation. This thesis regards coal demand as a triangular fuzzy stochastic variable while directing a levelling consideration towards risk returns for coal and power enterprises that are involved in coal generation contracts for differences. Risk and benefit measurement models were established between coal suppliers and power generators, and risk and benefit balance optimization models for contract negotiation were constructed.

Findings

A numerical example showed that the above models can be effectively used to avoid the risks of coal-electricity parties.

Originality/value

This thesis regards coal demand as a triangular fuzzy random variable while directing a levelling consideration towards the risk return to coal and power enterprises that are involved with coal generation contracts for differences. The features of this thesis are the following: demand information is regarded as a fuzzy random variable instead of a random variable. With historical data, sales experience and increasingly clear macro-economic conditions, coal and power enterprises are able to make a fuzzy decision – to a certain extent – when the transaction approaches. Accurate market information enables the supply chain system to satisfy the clients’ needs better, improve the profit level or avoid severe financial damages; by developing a feasible set of contracts for different parameters, it is possible to estimate whether the price difference enables supply chain coordination, requires changes or gives accounts to all involved parties of the supply chain; and without the assumption that the traditional M-V rule is unfavourable to decision makers, this thesis proposes the prospect M-V rule, which involves decision makers’ projections of future coal generation prices and enables wide applicability of the response method to contracts for differences.

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Article
Publication date: 2 January 2018

Pei Qin, Guobin Yi, Xihong Zu, Huan Wang, Hongsheng Luo and Miao Tan

The aim of this paper is to synthesize graphene-modified titanium dioxide (GR-TiO2) nanorod arrays nanocomposite films, so that these can enhance the photocatalytic…

Abstract

Purpose

The aim of this paper is to synthesize graphene-modified titanium dioxide (GR-TiO2) nanorod arrays nanocomposite films, so that these can enhance the photocatalytic properties of titanium dioxide and overcome the problem of difficult separation and recovery of photocatalysts.

Design/methodology/approach

The GR-TiO2 nanocomposite films were synthesized via hydrothermal method and spin-coating. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), ultraviolet–visible (UV-Vis) diffuse reflectance spectrum and Raman spectrum. The photocatalytic performance of the GR-TiO2 nanocomposite films for degrading Rhodamin B under ultraviolet (UV) was studied by a UV-Vis spectrophotometer. The photocatalytic enhancement mechanism of graphene was studied by photoelectrochemical analysis.

Findings

The introduction of graphene expanded the range of the optical response of TiO2 nanorod arrays, improving the separation efficiency of the photogenerated electron-hole pairs, and thus dramatically increasing its photocatalytic performance.

Research limitations/implications

A simple and novel way for synthesizing GR-TiO2 nanocomposite films has enhanced the photocatalytic performance of TiO2.

Originality/value

The photocatalyst synthesized is easy to separate and recycle in the process of photocatalytic reaction, so it is possible to achieve industrialization.

Details

Pigment & Resin Technology, vol. 47 no. 1
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 28 September 2012

Xiaoli Li, Qiang Wang, Xuejiao Sun, Xuerong Fan and Xue Han

The purpose of this paper is to derive a new method for the hydrophilic finishing of wool fabric.

Abstract

Purpose

The purpose of this paper is to derive a new method for the hydrophilic finishing of wool fabric.

Design/methodology/approach

A new biological catalyst, microbial transglutaminase (mTGase), was used to catalyze the grafting of ε‐poly‐L‐lysine (ε‐PLL) onto the wool fabric.

Findings

The K/S value, SEM morphology and DSC analysis proved that the grafting reaction occurred. The hydrophilic properties of the ε‐PLL‐grafted wool fabrics were studied. The results showed that the grafted ε‐PLL could increase the hydrophilicity, which was demonstrated in terms of the obvious shortening in the wetting time and the process of water absorption and moisture absorption. The grafted wool also achieved better antistatic property.

Research limitations/implications

Future work could be focused on the application of this biological method on other protein fabric which was designed to change the performance.

Originality/value

The biological approach is safe, eco‐friendly and effective relative to the conventional methods.

Details

International Journal of Clothing Science and Technology, vol. 24 no. 5
Type: Research Article
ISSN: 0955-6222

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Article
Publication date: 23 March 2012

Joseph O'Leary and Tzung‐Cheng Huan

The article's aim is to provide an overview of articles in this issue.

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Abstract

Purpose

The article's aim is to provide an overview of articles in this issue.

Design/methodology/approach

The article gives summary information and perspectives on the articles that appear in the issue and provides information helping readers.

Findings

The article first discusses three articles showing what three journal editors see as topics and find acceptable as research methods. The other three articles appear because they have important implications that receive limited attention in the literature. These articles address innovative treatment of problems with information commonly collected on return (repurchase), vague units of count and ineffective data collection.

Originality/value

This research provides insights on what three journal editors research, and the priorities and innovative work on the need for better return data, for better terms for units (e.g. of analysis) and for more effective data collection.

Details

International Journal of Culture, Tourism and Hospitality Research, vol. 6 no. 1
Type: Research Article
ISSN: 1750-6182

Keywords

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Article
Publication date: 23 March 2012

Ching‐Tang Wang, Tzung‐Cheng Huan and Tang‐Chung Kan

This paper has two main aims: to show responses like yes or very likely for inbound visitors returning to a destination can lead to misleading and unreliable information;…

Abstract

Purpose

This paper has two main aims: to show responses like yes or very likely for inbound visitors returning to a destination can lead to misleading and unreliable information; and to clarify the kind of information that should be collected.

Design/methodology/approach

Responses from Taiwan's inbound visitors relating to returning are examined to see what can be learned. Modeling is used to extract meaningful quantitative information from data.

Findings

Modeling shows that survey responses about return are inconsistent. Although 95 percent of non‐visiting‐friends‐and‐relations (VFR) leisure visitors indicate returning, this is not consistent with a retention rate of 90 percent. A retention rate of 33 percent is consistent with the observation that 70 percent of person‐visits are first‐visits. However, 33 percent retention is not consistent with over 95 percent of visitors returning. Conventional questions are yielding highly unreliable information and, therefore, data collection should be changed.

Originality/value

Relations between vague questions and return trips have been established. This research provides new evidence of the need for return data to include information allowing estimation of volume and timing of return.

Details

International Journal of Culture, Tourism and Hospitality Research, vol. 6 no. 1
Type: Research Article
ISSN: 1750-6182

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Article
Publication date: 23 March 2012

Wu‐Chung Wu, You‐De Dai and Hsiou‐Hsiang Jack Liu

Data collection from inbound tourists is a repetitive activity. This paper's main purpose is to show that, unless something useful about the nature of change is being…

Abstract

Purpose

Data collection from inbound tourists is a repetitive activity. This paper's main purpose is to show that, unless something useful about the nature of change is being established, repetitious collection of data from, for example, inbound visitors results in ineffective accumulation of data. The paper also aims to elucidate what it means for data to be ineffective for practical application or theory development.

Design/methodology/approach

The approach was to examine three years of data from inbound visitors to Taiwan to consider what would make data collection more effective.

Findings

Collecting many specific variables relating to travel by inbound tourists can result in recognizing segments and other matters important for applied research or theory development. Analysis shows detailed information can have limited use and high cost when different details apply to different segments. After identifying segments to study, effective information collection can require segment specific questioning, special sampling and segment specific studies.

Originality/value

While various countries conduct special studies, annual collection of a wide variety of information from inbound tourists is a common practice. This research provides new perspectives on why some data collection practices should be modified.

Details

International Journal of Culture, Tourism and Hospitality Research, vol. 6 no. 1
Type: Research Article
ISSN: 1750-6182

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Article
Publication date: 5 October 2015

Mingjing Jiang, Fang Liu, Huaning Wang and Xinxin Wang

The purpose of this paper is to present an investigation of the effect of different gravity conditions on the penetration mechanism using the two-dimensional Distinct…

Abstract

Purpose

The purpose of this paper is to present an investigation of the effect of different gravity conditions on the penetration mechanism using the two-dimensional Distinct Element Method (DEM), which ranges from high gravity used in centrifuge model tests to low gravity incurred by serial parabolic flight, with the aim of efficiently analyzing cone penetration tests on the lunar surface.

Design/methodology/approach

Seven penetration tests were numerically simulated on loose granular ground under different gravity conditions, i.e. one-sixth, one-half, one, five, ten, 15 and 20 terrestrial gravities. The effect of gravity on the mechanisms is examined with aspect to the tip resistance, deformation pattern, displacement paths, stress fields, stress paths, strain and rotation paths, and velocity fields during the penetration process.

Findings

First, under both low and high gravities, the penetration leads to high gradients of the value and direction of stresses in addition to high gradients in the velocity field near the penetrometer. In addition, the soil near the penetrometer undergoes large rotations of the principal stresses. Second, high gravity leads to a larger rotation of principal stresses and more downward particle motions than low gravity. Third, the tip resistance increases with penetration depth and gravity. Both the maximum (steady) normalized cone tip resistance and the maximum normalized mean (deviatoric) stress can be uniquely expressed by a linear equation in terms of the reciprocal of gravity.

Originality/value

This study investigates the effect of different gravity conditions on penetration mechanisms by using DEM.

Details

Engineering Computations, vol. 32 no. 7
Type: Research Article
ISSN: 0264-4401

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