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Article

Zhizhou Wu, Yiming Zhang, Guishan Tan and Jia Hu

Traffic density is one of the most important parameters to consider in the traffic operation field. Owing to limited data sources, traditional methods cannot extract…

Abstract

Purpose

Traffic density is one of the most important parameters to consider in the traffic operation field. Owing to limited data sources, traditional methods cannot extract traffic density directly. In the vehicular ad hoc network (VANET) environment, the vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) interaction technologies create better conditions for collecting the whole time-space and refined traffic data, which provides a new approach to solving this problem.

Design/methodology/approach

On that basis, a real-time traffic density extraction method has been proposed, including lane density, segment density and network density. Meanwhile, using SUMO and OMNet++ as traffic simulator and network simulator, respectively, the Veins framework as middleware and the two-way coupling VANET simulation platform was constructed.

Findings

Based on the simulation platform, a simulated intersection in Shanghai was developed to investigate the adaptability of the model.

Originality/value

Most research studies use separate simulation methods, importing trace data obtained by using from the simulation software to the communication simulation software. In this paper, the tight coupling simulation method is applied. Using real-time data and history data, the research focuses on the establishment and validation of the traffic density extraction model.

Details

Journal of Intelligent and Connected Vehicles, vol. 2 no. 1
Type: Research Article
ISSN: 2399-9802

Keywords

Content available
Article

Dong Yang, Jinxian Weng and Jia Hu

Shaanxi, Shanxi province and Inner Mongolia in north China are the nation’s leading producers of coal. In the past decades, a huge amount of coal has been transported from…

Abstract

Purpose

Shaanxi, Shanxi province and Inner Mongolia in north China are the nation’s leading producers of coal. In the past decades, a huge amount of coal has been transported from these areas to the central and south China via ports in Hebei Province and Port of Tianjin. Traditionally, coal is transported in bulk shipment. However, in recent years, an interesting phenomenon is that the lump coal is sorted out in the north and then moved in containers to the south. This paper aims to ascertain whether the coal containerization will become an alternative transport mode for moving lump coal from the north to the south of China. Based on extensive field investigation and data analyses, it is found that although the container mode appears to be more expensive than the bulk shipping mode, the cost difference between the two modes is not as significant as our expectation if we also take into factors like fragmented demand, environment pressure, geographic distribution characteristics of customers and so on.

Design/methodology/approach

Extensive field investigation, data analysis and economic decision model.

Findings

It is found that although the container mode appears to be more expensive than the bulk shipping mode, the cost difference between the two modes is not as significant as the authors’ expectation if they also take into factors like fragmented demand, environment pressure, geographic distribution characteristics of customers and so on.

Originality/value

Although the major focus has been placed on the food containerization, the coal containerization is still a new thing and has attracted only limited attention. This paper is making an initial attempt to profile the phenomenon of coal containerization in China. This attempt is believed to not only enrich the literature of coal containerization but also support the literature of bulk containerization.

Details

Maritime Business Review, vol. 1 no. 1
Type: Research Article
ISSN: 2397-3757

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Article

Guoqun Fu, Chenghu Zhang and Jia'jing Hu

This paper attempts to explore why adult progeny initiate progeny–parents family travel, how two generations interact and deal with intergenerational conflicts during…

Abstract

Purpose

This paper attempts to explore why adult progeny initiate progeny–parents family travel, how two generations interact and deal with intergenerational conflicts during travel and how they evaluate their travel experiences from the perspective of filial piety.

Design/methodology/approach

Based on in-depth interviews with both parents and their adult progeny, it is found that “repayment” or “compensation” of filial piety is the most important driving force to family travel with parents, and in many cases an adult child exhibits “overspending” by showing filial obedience. On the other hand, parents occasionally utilize filial piety as cultural resources to fulfill their personal goals and to evaluate their interactions with adult children. Finally, the authors offer an exploratory explanation to why filial generation has a relatively low evaluation while parent generation has a higher evaluation of family trip.

Findings

The authors suggest that future study in this particular area should attach much more importance to the “filial piety tool boxes” paradigm, which is in parallel with the paradigm of “concept (values) affecting behavior”.

Originality/value

The contribution of this study is to investigate the family travel process of “taking the elderly people to travel” from the perspective of interaction and filial piety.

Details

Journal of Contemporary Marketing Science, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2516-7480

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Article

Feng-Rung Hu and Jia-Sheng Hu

– The purpose of this paper is to present a proportional-integral (PI) observer design on a linear system with stochastic noises.

Abstract

Purpose

The purpose of this paper is to present a proportional-integral (PI) observer design on a linear system with stochastic noises.

Design/methodology/approach

The noised disturbances are modeled as independent Brownian motions for various affections, such as radiation, heat, and material fatigue. These phenomena are common in applications, such as biomolecules, nonlinear control, and biochemical networks. Under this framework, this paper proposes a new approach on a PI observer in terms of four crucial theorems, and an illustrative numerical example is given to verify the proposed design.

Findings

The results provide potential solutions for system fault tolerance and isolation.

Originality/value

This paper proposes a design, solvability, and controllability analysis on a PI observer in terms of four crucial theorems.

Details

Engineering Computations, vol. 33 no. 6
Type: Research Article
ISSN: 0264-4401

Keywords

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Article

Mengzhong Zhang

To boost the fiscal revenue, i.e., government revenue over GDP and central government revenue over government total revenue, China conducted the 1994 fiscal reforms…

Abstract

To boost the fiscal revenue, i.e., government revenue over GDP and central government revenue over government total revenue, China conducted the 1994 fiscal reforms. According to some observers, the results of the initial reforms were mixed. This study reveals, contrary to most examinations of previous studies, the 1994 fiscal reforms have been an enormous success in achieving the original policy purposes, although remaining problems still present a daunting task for the Chinese government. This paper examines the factors triggering the 1994 fiscal reforms, reveals the contents and accomplishments of the reforms, explores unfinished tasks and ultimately proposes some policy implications.

Details

Journal of Public Budgeting, Accounting & Financial Management, vol. 18 no. 4
Type: Research Article
ISSN: 1096-3367

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Article

Anjali Chaudhry, Ling Yuan, Jia Hu and Robert A. Cooke

Writings on organizational culture suggest that cultural values and norms are influenced by factors at the organizational, industry, and societal levels. While the effects…

Abstract

Purpose

Writings on organizational culture suggest that cultural values and norms are influenced by factors at the organizational, industry, and societal levels. While the effects of societal and organizational factors have been researched extensively, those of industry factors have not received commensurate attention. This paper investigates the relative importance of industry versus organizational variables in explaining the cultural norms reported by individuals within organizations.

Design/methodology/approach

The effects of two industry characteristics, (growth rate and research and development intensity) and two sets of organizational factors (leadership behaviors and human resource practices) on the strength of constructive, passive/defensive, and aggressive/defensive organizational cultural norms were investigated.

Findings

Results of hierarchical linear modeling (HLM) analysis of survey data from 3245 respondents in 424 organizations in twelve different industries revealed significant between-organization variation but no significant between-industry variation in the three types of cultural norms measured. Furthermore, while industry-level factors were unrelated to culture, significant variance in the culture measures was explained by leadership behaviors and human resource practices (use of rewards and fairness of performance appraisal).

Research limitations/implications

The strength of cultural norms and expectations within an organization evolve in response to attributes specific to the organization and do not necessarily reflect industry characteristics. The results indicate that organizations using surveys to assess their cultures may learn as much (if not more) by comparing their feedback to data on organizations across a spectrum of industries as opposed to organizations exclusively in their own industry.

Originality/value

Most of the frameworks developed to examine and describe the cultures of organizations delineate specific dimensions or types that are assumed to be relevant to all organizations regardless of the industries within which they operate. The purpose of this paper was to explore the validity of this assumption by investigating the relative impact of industry and organizational factors on organizational culture.

Details

Management Decision, vol. 54 no. 3
Type: Research Article
ISSN: 0025-1747

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Article

Pei Jia, Huosheng H. Hu, Tao Lu and Kui Yuan

This paper presents a novel hands‐free control system for intelligent wheelchairs (IWs) based on visual recognition of head gestures.

Abstract

Purpose

This paper presents a novel hands‐free control system for intelligent wheelchairs (IWs) based on visual recognition of head gestures.

Design/methodology/approach

A robust head gesture‐based interface (HGI), is designed for head gesture recognition of the RoboChair user. The recognised gestures are used to generate motion control commands to the low‐level DSP motion controller so that it can control the motion of the RoboChair according to the user's intention. Adaboost face detection algorithm and Camshift object tracking algorithm are combined in our system to achieve accurate face detection, tracking and gesture recognition in real time. It is intended to be used as a human‐friendly interface for elderly and disabled people to operate our intelligent wheelchair using their head gestures rather than their hands.

Findings

This is an extremely useful system for the users who have restricted limb movements caused by some diseases such as Parkinson's disease and quadriplegics.

Practical implications

In this paper, a novel integrated approach to real‐time face detection, tracking and gesture recognition is proposed, namely HGI.

Originality/value

It is an useful human‐robot interface for IWs.

Details

Industrial Robot: An International Journal, vol. 34 no. 1
Type: Research Article
ISSN: 0143-991X

Keywords

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Article

Li Genpan

The purpose of this paper is to demonstrate that the sustainable development thought is one good reason why Chinese civilization is continuously developing, and it can be…

Abstract

Purpose

The purpose of this paper is to demonstrate that the sustainable development thought is one good reason why Chinese civilization is continuously developing, and it can be used as a reference for the development of Chinese agriculture today.

Design/methodology/approach

The paper employs a historical analysis approach to examine the sustainable thoughts concerning Chinese traditional agriculture, including view of sancai, farming season, fertility, the nature of matters, recycling, and economization.

Findings

The results reveal that the nature of Chinese traditional agriculture is akin to ecological agriculture, which is precious heritage for China and the whole world.

Originality/value

The originality of this paper is that it confirms the fundamental reason of the continuous development of Chinese civilization which, based on organization of sustainable development thought, lies in traditional agriculture.

Details

China Agricultural Economic Review, vol. 1 no. 1
Type: Research Article
ISSN: 1756-137X

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Article

Yong Qiang Chen, Su Juan Zhang, Li Sha Liu and Jia Hu

Making the right bid/no-bid decision is critical to the success and development of construction contracting enterprises. Decision makers’ personal characteristics, such as…

Abstract

Purpose

Making the right bid/no-bid decision is critical to the success and development of construction contracting enterprises. Decision makers’ personal characteristics, such as risk perception and propensity, have great impact on bid/no-bid decisions, which is the major concern of this research. The purpose of this paper is to explore the relationship among decision makers’ risk perception, risk propensity, and their bid/no-bid decision making of construction projects, as well as the factors influencing the risk perception and propensity.

Design/methodology/approach

In total, four hypotheses were proposed based on an extensive literature review. Experimental questionnaires were distributed to employees working in Chinese construction contracting enterprises with knowledge of construction bidding, and 134 valid questionnaires were obtained. Multivariate statistical analysis through SPSS 19.0 was used to analyze the acquired data.

Findings

Data analysis shows that in the context of international construction contracting: risk perception has a negative influence on bid/no-bid decision making; while risk propensity produces a positive influence and the probability and magnitude of potential gain or loss both have significant impacts on risk perception, and the probability plays a more important role.

Originality/value

This research studied the bid/no-bid decision making of construction projects from the new perspectives of risk perception and risk propensity of the decision makers.

Details

Engineering, Construction and Architectural Management, vol. 22 no. 1
Type: Research Article
ISSN: 0969-9988

Keywords

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Article

Yu‐Jia Hu, Yi‐Feng Yang and Majidul Islam

A literature review has revealed that a sales manager's transformational leadership has a positive impact on the job satisfaction of salespeople, while job satisfaction…

Abstract

Purpose

A literature review has revealed that a sales manager's transformational leadership has a positive impact on the job satisfaction of salespeople, while job satisfaction has significant influence on salespeople's work behaviors. The purpose of this paper is to examine the relationship between the transformational leadership of sales managers and the job satisfaction of salespeople.

Design/methodology/approach

The research was designed as a quantitative study, and the population was identified as salespeople in the consumer product industry in Taiwan, resulting in 123 individual surveys for analysis.

Findings

The findings supported the hypothesis that there is a positive and statistically significant relationship between sales managers' transformational leadership and sales associates' job satisfaction. The result identified the predictors of sales managers' transformational leadership on the sales associates' job satisfaction through regression analysis.

Originality/value

The balanced scorecard (BSC) was originally intended to solve problems related to the historical nature of financial measures in accounting approaches. The purpose of this paper is to make a contribution to this literature by focusing on a major issue that has been less investigated, namely, the linking of the BSC perspective to the empirical investigation of leadership behaviors using statistical and technical tools and to predict employee satisfaction. The paper suggests applying Kaplan and Norton's BSC, which includes the perspectives of financial, customer, internal business, and innovation and learning measures to consider the effects of leadership behaviors on employee job satisfaction.

Details

International Journal of Commerce and Management, vol. 20 no. 4
Type: Research Article
ISSN: 1056-9219

Keywords

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