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Article
Publication date: 29 July 2014

Weidong Song, H.P. Tang and X.N. Mao

The purpose of this paper is to investigate tensile properties of TiC particle-reinforced titanium matrix composites (PRTMC) using the elasto-plastic finite element (FE…

Abstract

Purpose

The purpose of this paper is to investigate tensile properties of TiC particle-reinforced titanium matrix composites (PRTMC) using the elasto-plastic finite element (FE) programs and the homogenization method and the fixed point iteration method.

Design/methodology/approach

Two quasi-static and dynamic transient programs of elasto-plastic FE were coded by using FORTRAN. Based on the FE programs, the FE model of the TiC PRTMC with typical microstructures was established by using the fixed point iteration method and the homogenization theory. The hot deformation behavior of TiC PRTMC under different temperatures were analyzed by using the above model and programs.

Findings

Calculation results are presented to investigate the influence of different temperatures on the hot deformation behavior of TiC PRTMC. Based on the experimental data, a good agreement was obtained between the numerical predictions and the experimental results, and the feasibility of this method was verified.

Originality/value

The work is original and findings are new, which demonstrates this FE frame combined with the homogenization method and the fixed point iteration method can be used to investigate the tensile behavior of particle-reinforced metal matrix composites.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 24 no. 6
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 25 April 2008

John Chi‐kin Lee, Daoyong Ding and Huan Song

The purpose of this paper is to discuss recent developments in school developmental supervisory evaluation in the Pudong New Area of Shanghai in the Chinese Mainland.

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3137

Abstract

Purpose

The purpose of this paper is to discuss recent developments in school developmental supervisory evaluation in the Pudong New Area of Shanghai in the Chinese Mainland.

Design/methodology/approach

The main research approach is qualitative, using documentary analysis and interviews of an inspector, principals and teachers from two primary schools.

Findings

There were perceived positive and negative impacts of school supervision and evaluation.

Originality/value

The paper highlights the implications for fostering a shared school‐government community of school supervision and evaluation, promoting a dynamic approach for addressing contextual differences as well as achieving better coherence among educational reform, supervision and evaluation policies.

Details

Quality Assurance in Education, vol. 16 no. 2
Type: Research Article
ISSN: 0968-4883

Keywords

Content available
Article
Publication date: 25 April 2008

Niaz Ahmed

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961

Abstract

Details

Quality Assurance in Education, vol. 16 no. 2
Type: Research Article
ISSN: 0968-4883

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Book part
Publication date: 4 October 2018

Belverd E. Needles, Marian Powers, Mark L. Frigo and Anton Shigaev

This study establishes a baseline evaluation of sustainability reporting (SR) and integrated reporting (IR) practices among groups of companies globally using a combined…

Abstract

This study establishes a baseline evaluation of sustainability reporting (SR) and integrated reporting (IR) practices among groups of companies globally using a combined evaluation matrix. We evaluate a sample of high performance companies (HPC), global reporting initiative (GRI) companies, international integrated reporting committee (IIRC) companies, and a control group of companies that do not belong to any of these groups. We test for high performance and compliance with a 30-point evaluation matrix for financial reporting, corporate governance, integrated disclosure, SR, and assurance developed from the standards set by GRI and IIRC. This chapter provides evidence as to the current IR and SR states, and shows that considerable variation exists even among companies that have pledged to improve reporting in this arena. The analysis also shows that companies that belong to no special group do in fact score on a level that shows that SR and IR standards are being implemented by many companies in the world, not just those in special groups like the HPC, GRI, and IIRC. Finally, this study provides direction for global regulators and professional associations, and to the management of companies that aspire to HPC status while meeting the IR and SR standards.

Details

Performance Measurement and Management Control: The Relevance of Performance Measurement and Management Control Research
Type: Book
ISBN: 978-1-78756-469-5

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Article
Publication date: 26 June 2019

Tijun Fan, Yang Song, Huan Cao and Haiyang Xia

The purpose of this paper is to find the optimal environmental quality criteria for a strategic eco-labeling authority with three objectives (i.e. maximizing the aggregate…

Abstract

Purpose

The purpose of this paper is to find the optimal environmental quality criteria for a strategic eco-labeling authority with three objectives (i.e. maximizing the aggregate environmental quality, maximizing the industry profit and maximizing the social welfare). Particularly, the authors investigate how the existence of imperfectly informed consumers affects labeling criteria determination and competition among firms.

Design/methodology/approach

A game-theoretic modeling approach was adopted in this paper. A three-stage sequential game was modeled and backward induction was used to solve for a subgame perfect Nash equilibrium. To investigate the impacts of the existence of imperfectly informed consumers, the equilibrium, if all consumers are perfectly informed of the eco-label, was studied as a benchmark.

Findings

A more strict eco-labeling criterion improves revenues for both the labeled and unlabeled firms. It is interesting to find that the eco-labeling criteria to maximize industry profits are stricter than the criteria to maximize social welfare. Moreover, when the fraction of imperfectly informed consumers increases, the eco-labeling criteria to maximize aggregate environmental quality or industry profits will be more strict, while the criteria to maximize the social welfare will be looser.

Originality/value

The authors analyze the equilibrium strategies for firms against the eco-labeling criteria certified by authority with different objectives. The obtained optimal labeling strategies could provide insightful guidelines for the certifying authority to select the best suitable labeling criteria to achieve its goals.

Details

Industrial Management & Data Systems, vol. 119 no. 6
Type: Research Article
ISSN: 0263-5577

Keywords

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Article
Publication date: 11 June 2018

Louma Ahmad Chaddad, Ali Chehab, Imad Elhajj and Ayman Kayssi

The purpose of this paper is to present an approach to reduce energy consumption in data centers. Subsequently, it reduces electricity bills and carbon dioxide footprints…

Abstract

Purpose

The purpose of this paper is to present an approach to reduce energy consumption in data centers. Subsequently, it reduces electricity bills and carbon dioxide footprints resulting from their use.

Design/methodology/approach

The authors present a mathematical model of the energy dissipation optimization problem. The authors formulate analytically the server selection problem and the supply air temperature as a non-linear programming, and propose an algorithm to solve it dynamically.

Findings

A simulation study on SimWare, using real workload traces, shows considerable savings for different data center sizes and utilization rates as compared to three other classic algorithms. The results prove that the proposed algorithm is efficient in handling the energy-performance trade-off, and that the proposed algorithm provides significant energy savings and maintains a relatively homogenous and stable thermal state at the different rack units in the data center.

Originality/value

The proposed algorithm ensures energy provisioning, performance optimization over existing state-of-the-art heuristics, and on-demand workload allocation.

Details

Management of Environmental Quality: An International Journal, vol. 29 no. 4
Type: Research Article
ISSN: 1477-7835

Keywords

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Case study
Publication date: 26 November 2014

Rua-Huan Tsaih, James Quo-Ping Lin and Yu-Chien Chang

Service innovation, ICT-enabled services, museum, cultural and creative industries.

Abstract

Subject area

Service innovation, ICT-enabled services, museum, cultural and creative industries.

Study level/applicability

Graduate-level courses of “Innovation Management,” “Service Innovation,” or “Cultural and Creative Industries”.

Case overview

In 2006, the National Palace Museum (NPM) in Taipei, Taiwan, announced its new vision “Reviving the Charm of an Ancient Collection and Creating New values for Generations to Come”. In recent years, the NPM has been shifting its operational focus from being object-oriented to being public-centered, and the museum has held not only the physical forms of artifacts and documents but also their digital images and metadata. These changes would inject new life into historical artifacts. In addition, archives as its collections would be given a refreshingly new image to the public and become connected with people's daily lives. Among these endeavors for displaying historical artifacts online and prevailing Chinese culture in the modern age, the key issues are related to digital technology applications and service innovations. The service innovations would be further divided into information and communication technologies (ICT)-enabled ones and non-ICT-enabled ones. These shifts clearly claim that adopting digital technologies and innovative services can bring positive impacts to the museum. The NPM administrative team wants to keep infusing life into ancient artifacts and texts, sustaining curiosities of the public for Chinese culture and history, and invoking their interests to visit the NPM in person. However, to develop for the future while reviewing the past, the NPM administrative team has to meditate on the next steps in terms of implementation of service innovations.

Expected learning outcomes

Students will learn motivations of digital establishment and service innovations from the organization perspective and the necessities of technological implementation. Students will understand the difference in innovations between ICT-enabled services and non-ICT-enabled services. Students would be able to understand the process of developing a new service. Students will be aware of challenges the organization would face in developing a new service.

Supplementary materials

Teaching notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.

Details

Emerald Emerging Markets Case Studies, vol. 4 no. 7
Type: Case Study
ISSN: 2045-0621

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Article
Publication date: 28 October 2014

Xi-zu Yan and Zhong-min Song

– The purpose of this paper is to establish the portfolio models of contained grey profit under uncertainty, and the results are applied to solve uncertain investment problem.

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166

Abstract

Purpose

The purpose of this paper is to establish the portfolio models of contained grey profit under uncertainty, and the results are applied to solve uncertain investment problem.

Design/methodology/approach

In investment problems, uncertainties may exist in model parameters and input data. For the investment problems contained grey profit and incomplete information about natural world state, according to the portfolio theory, the grey systems theory and the uncertainty decision theory, the paper puts forward portfolio models and the methods.

Findings

Traditional uncertainty decision is researched for incomplete information about natural world state, in reality, investment problems are not only uncertain state information, but income are uncertain.

Practical implications

Because the investment problems have been widely used in economic analysis, decision analysis and economic management, examples are provided at the end to verify its feasibility.

Originality/value

The paper successfully combined the portfolio theory, the gray system theory and uncertainty decision theory and new uncertainty investment decision-making models and methods are presented.

Details

Grey Systems: Theory and Application, vol. 4 no. 3
Type: Research Article
ISSN: 2043-9377

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Article
Publication date: 24 December 2020

Shuqing Li, Li Ding, Xiaowei Ding, Huan Hu and Yu Zhang

With the continuous change of research contents and methods of intelligence science, its integration with other disciplines is also deepening. The purpose of this paper is…

Abstract

Purpose

With the continuous change of research contents and methods of intelligence science, its integration with other disciplines is also deepening. The purpose of this paper is to further explore the interdisciplinary research characteristics of intelligence science in theoretical depth and application value.

Design/methodology/approach

This paper summarizes and explores in two aspects. The first is a large number of literature review, mainly combined with the historical characteristics of the development of intelligence science researches in China and international comparison. The second is to refine the discipline construction ideas suitable for the development of contemporary intelligence science.

Findings

From the perspective of the historical development of discipline relevance, the development characteristics and positioning of intelligence science in China are introduced, with the comparison of many disciplines including information technology, library science, information science, data science, management science and other disciplines. In order to better meet the practical needs of intelligence service in the new era, this paper mainly analyzes the construction method of intelligence science research system and the relocation of intelligence science research content.

Originality/value

This paper summarizes the historical characteristics and international comparison of the development of intelligence science in China. It proposes the development characteristics and orientation of intelligence science in China from the perspective of historical development of discipline relevance. It also proposes the discipline construction ideas suitable for the development of contemporary intelligence science.

Details

Journal of Documentation, vol. 77 no. 2
Type: Research Article
ISSN: 0022-0418

Keywords

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Article
Publication date: 14 December 2018

De-gan Zhang, Ya-meng Tang, Yu-ya Cui, Jing-xin Gao, Xiao-huan Liu and Ting Zhang

The communication link in the engineering of Internet of Vehicle (IOV) is more frequent than the communication link in the Mobile ad hoc Network (MANET). Therefore, the…

Abstract

Purpose

The communication link in the engineering of Internet of Vehicle (IOV) is more frequent than the communication link in the Mobile ad hoc Network (MANET). Therefore, the highly dynamic network routing reliability problem is a research hotspot to be solved.

Design/methodology/approach

The graph theory is used to model the MANET communication diagram on the highway and propose a new reliable routing method for internet of vehicles based on graph theory.

Findings

The expanded graph theory can help capture the evolution characteristics of the network topology and predetermine the reliable route to promote quality of service (QoS) in the routing process. The program can find the most reliable route from source to the destination from the MANET graph theory.

Originality/value

The good performance of the proposed method is verified and compared with the related algorithms of the literature.

Details

Engineering Computations, vol. 36 no. 1
Type: Research Article
ISSN: 0264-4401

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