نتایج جستجو برای: grey

تعداد نتایج: 19934  

Journal: :international journal of transportation engineering 0
vahid baradaran assistant professor, department of industrial engineering, islamic azad university, tehran north branch, tehran, iran

some incidents in urban railway systems affect the function of the subway’s company adversely and they could disorder the services. these events may inflict irreparable damage to passengers, employees and equipment. by recognizing the hazards existing in this type of transportation system and evaluating and prioritizing risks, we can perform appropriate actions to reduce the probability and sev...

Journal: :مدیریت صنعتی 0
عالیه کاظمی استادیار گروه مدیریت صنعتی، دانشکده مدیریت، دانشگاه تهران، ایران محمد مدرس استاد دانشکده مهندسی صنایع دانشگاه صنعتی شریف، تهران، ایران محمدرضا مهرگان دانشیار گروه مدیریت صنعتی، دانشکده مدیریت، دانشگاه

the aim of this paper is to present the prediction model of the transport energy demand in iran. markov chain grey model (mcgm) is proposed to forecast the transport energy demand of iran. then it is compared with grey model (gm) and regression model. moreover, the mcgm forecasting model is used to forecast the annual gasoline demand of iran up to the year 1400. the aim of this paper is to pres...

Journal: :Canadian Medical Association Journal 2011

Journal: :Grey Systems: T&A 2013
Erkan Kose Serhat Burmaoglu Mehmet Kabak

Purpose – The relationship between energy consumption (EC) and economic growth is a well-known and more studied subject in literature. In this study, Turkey’s EC and gross domestic product (GDP) relation is analyzed. The aim of this study is to find out the relative importance of energy components on GDP for Turkey. Hence, the authors can make some strategic implications up to the importance of...

2014
Lijuan Qian Jinlin Ma Zongbo Zhang Daming Zhang Kaiping Ma

According to the urban logistics green degree’s evaluation, a weighted grey correlation analysis method based on the analytic hierarchy process is proposed to determine the weight of each index in the urban logistics green degree evaluation system, and then figure out the optimal relative degree, realizing the green degree of each urban logistics. Finally, an example was given for proving the e...

2013
Chih-Cheng Chen Yung-Tan Lee Chung-Ming Tsai

The performance assessment of professional baseball starting pitchers is considered a multi-attribute decisionmaking (MADM) problem. This study develops an evaluation model based on the analytic hierarchy process (AHP) and grey relational analysis (GRA) to evaluate starting pitcher performance for teams of the Chinese Professional Baseball League. The AHP is used to determine attribute weights,...

Journal: :JCIT 2010
Juchi Hou

The aim of this paper is to investigate the multiple attribute decision making problems with intuitionistic fuzzy information, in which the information about attribute weights is incompletely known, and the attribute values take the form of intuitionistic fuzzy numbers. In order to get the weight vector of the attribute, we establish an optimization model based on the basic ideal of traditional...

2017
Irene-Angelica Chounta Bruce M. McLaren Patricia Albacete Pamela Jordan Sandra Katz

In this paper, we propose a computational approach to modeling the Zone of Proximal Development of students who learn using a natural-language tutoring system for physics. We employ a student model to predict students’ performance based on their prior knowledge and activity when using a dialogue tutor to practice with conceptual, reflection questions about high-school level physics. Furthermore...

Journal: :Concurrent Engineering: R&A 2008
Yi Li Deyi Xue Peihua Gu

Adaptable design is a new design paradigm to create designs and products that can be easily changed to satisfy different requirements. Adaptable design aims at identifying the designs and products considering functionality, manufacturing efforts, customization, and environment friendliness. This research focuses on adaptable design considering product adaptability. In this work, product adaptab...

2009
Alice Anderson Cornelia Brunner Katie McMillan Culp James Diamond Ashley Lewis Wendy Martin

As formative research for the development of a suite of middle school life science video games, we are adapting microgenetic research methods [15] that use repeated, small-scale task-based sessions with participants to document how reasoning and understanding can develop and change in short periods of time. In this study, we are working with students between the ages of 9 and 12, examining the ...

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