The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Aiming at the particularity of the BDAR, the method which employs the set pair analysis based on entropy and weight to rational efficiency evaluation of the BDAR had been discussed by taking certain five amphibian equipments as example. Firstly, the evaluating index system was established by analyzing the characteristic of the BDAR and the factors which affect the efficiency evaluation of the BDAR...
There are two sections in support quantitative parameter determination for equipment requirement argumentation, which contains index selection and determination method. The paper analyzes the selections of quantitative parameter firstly, and then makes sure the needs and common process. For the characteristics of representative parameters, the paper builds up a support object model and system model...
In order to solve the prominent problems such as slowness, subjectivity and inclination of human factors in competitive procurement method selection for general equipment maintenance materials, based on five key indexes including confidentiality, security, number of qualified suppliers, fund saving rate and project time limit, this paper presented a new quantitative model for procurement method selection...
This paper defines the concept of the emergency production response capacity of equipment production systems, and analyzes factors affecting the emergency production response capacity of the equipment production systems in the mean of ANP and obtains crucial factors. Authors also bring forward management process and optimization ideas for equipment production systems, and provides technical support...
The electromechanical coupling phenomenon in CNC machine tool has an important influence on the dynamic precision of the feed system. The complicated dynamic characteristics and their evolutions with different parameters will aggravate the research difficulty of the electromechanical coupling mechanism. In this paper, taking SL250 lathe as the research object, the servo torque and mechanical structure...
Species distribution model (SDM) has been the core of spatial ecology and it can provide a measure of a species' occupancy potential in areas not covered by biological surveys and consequently is becoming an essential tool to forest management. This study developed a framework for modeling two representative tree species in central Taiwan. The SDMs based on topographic variables and vegetation index...
Improvement the efficiency of power energy production, modernization of industrial process in frame of ecological and industrial safety are one of the strategicproblems for any country. Mongolia issame those countries with rich natural resource of coal fuel in energy balance, where coal is occupied the largest position in it and this situation will be kept in the future. The combustion process of...
This paper describes an applications for supporting the cooperative learning by applying the Jigsaw method. Cooperative learning is the process which people gather in groups to teach each other what they know and understand. One of the famous method of cooperative learning is Jigsaw. But, using Jigsaw method need much time, hard to divide students into some groups and evaluation the learning process...
The operation of construction project is a system engineering with dynamic characteristics, its completion usually affected by great uncertainty and risk, especially the cost risk. This paper aims to conduct theoretical and empiric analysis on the construction project cost risk issues caused by uncertainties and mismanagement, establish early-warning system of construction project cost risk, set up...
Presently, the maintenance and support costs estimate of the complex equipment depends merely on experience. Through the analysis on the feature and expenses of the maintenance and support, we use the theory about the membership degree and closeness degree in the fuzzy mathematics. According to the thinking of the smoothing index modeling, an estimating model for the maintenance and support based...
Conceptual design selection is the most critical part of the design process as it determines the direction of subsequent design stages. In addition, it is a difficult task because available information for decision making at this stage is imprecise and subjective. Set pair analysis (SPA) is the very tool to deal with concept design selection. In decision making process, first identify weights with...
The study of light propagation and interaction with disordered systems represents one of the ultimate frontiers in research in Photonics [1-3]. In this invited contribution I will summarize my theoretical and experimental research activity in the field, discussing both geometrical disorder (i.e., random distribution of index of refraction) as well as wave disorder (i.e., quantum chaotic structures)...
The Private Financial Initiative (PFI) program has been implemented by many developed countries throughout the world as an innovative way for the governments to improve future public service delivery and infrastructure procurement. However, the idea is just about to germinate in Malaysia and its success is still vague. The major phase that needs to be given main attention in this agenda is value for...
This article describes the University basic computer course in support of the network platform of auxiliary teaching, I proofread carried out the reform of the teaching mode, from lecture-based teaching paradigm shift for teachers, just to play a guiding role in the teaching process, and then teaching mode, supplemented by a self-learning, to provide an independent learning platform, the use of metacognitive...
Emergency material allocation is the core of the emergency relief response activities. This paper focuses on the problem of emergency material allocation based on maximum material utility. First, affected areas' material demand urgency and emergency donations' effectiveness evaluation index systems are proposed based on the analysis of emergency material allocation system. Then an optimal model based...
In order to deepen the understanding of the nature of first language acquisition, we carry a longitudinal recording of speech production of twenty-three Mandarin-speaking children from one year old to four years old at Chinese Academy of Social Sciences (CASS) in Beijing since 2009. The interactive communication between children and parents is recorded in both audio and video mode. Apart from longitudinal...
This paper examines the efficacy of Felder-Silverman's learning styles and Mayer's generative theory of multimedia learning for adaptive hypermedia using three different modes of presentations-verbal, visual, and multimedia- in history and engineering disciplines. Six modules in history and engineering were designed in verbal, visual and multimedia modes. Hundred and four undergraduate students of...
In the present paper, we present a new approach for data encoding in the THz frequency domain. We proposed a structure based on a 1D periodic stack of dielectric layers whose thickness is of the order of the wavelength, i.e. in the millimeter range. Such a device exhibits well known forbidden band gap (FBG) behavior when illuminated by an electromagnetic wave. We suggest modifying the periodicity...
The rapid development of the electrical and electronic products (EEPs) market in recent years has created both positive and negative impacts on the environment and humans. In order to achieve sustainable development, the most critically negative impacts – i.e., waste EEP (WEEP) — must be properly handled, such as disposal, remanufacturing, recycling, reusing, to name a few. Among the suggested solutions...
The idea of using intelligent products to ensure an information continuum all along the product life cycle (PLC) is more and more shared today. However, it is not that easy to identify what information should be stored on the product. To answer this question, we propose a data dissemination process to select context-sensitive information from the database, that must be stored/replicated on the product...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.