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.
The safety grade of Long and Steep Downhill Roads (LSDRs) on mountainous expressway is determined on the basis of analysis of safety factors, and the safety evaluation index system and the weights are build. Based on the theory of grey clustering, the classic whitening weight function is improved, and a gray fixed weight-clustering evaluation model of LSDRS is established to evaluate the security...
Through the theoretically analyzing of the foundation of outburst prediction indexes and the existing prediction data of coal mine, a mathematics model was established with the dimension theories by considering with weights of dominant factors for ascertaining sensitive factors of coal seam. The established model and grey relevancy analysis were successfully verified in four coal mine of Pingdingshan...
The paper has done systematic analysis to safety of offshore platforms, indicators system of which has been established, we comprehensively study safety evaluation of offshore platforms with grey theory integrated method that using gray statistics method to establish evaluation matrix, determining the weight of related indexes with the gray connection analysis and carrying on the comprehensive judgement...
Middle and small size fault structure is the key geological factor affecting the safety production of DongPang mine field. Finding out development character of middle and small fault structure in DongPang mine field is to provide the geological premise for mining design of coal mine and working face layout. Based on the analysis of real data, 20 factors affecting the development of middle and small...
It is known that software system plays an important role in the information society, and high trustworthiness is a key requirement for many types of systems, such as safety critical systems, telecommunication systems, and mission critical software systems. How to improve the trustworthiness to better serve our society has become an important research focus among areas of software theory and technology...
Based on the analysis of the characteristics in the E-Commerce system and safety risk, the author has focused on the Fuzzy-ETA (event tree analyse)-FTA(fault tree analyse) method applied in the process risk management of R&D projects. The author has analyzed the possibility of an integration of EAT-FAT, and solved the problems in the integration of The Gray Synthetic Evaluation Theory by applying...
With the rapid development of industrialization and urbanization, crime prevention issues become serious in China each day. Many cities have established a number of crime prevention systems in order to maintain social stability. However, crime prevention system is a complex system, which is controlled by a number of interrelated factors and is difficult to estimate. To overcome the obstacles of conventional...
Due to the incompleteness and complexity of the evaluation information in the human-machine interface evaluation, it is difficult to evaluate the human-machine interface with the traditional evaluation methods. In order to overcome these problems, grey interval relation membership degree is applied in the field of human-machine interface evaluation in this paper. The concept of membership degree is...
Based on the butterfly arch continuous girder bridge in HeiHe, China, this paper mainly deals with a quantitative risk analysis for V-shaped pier during the construction process, by using Analytic Hierarchy Process - Grey Correlation Analysis method. Firstly, hierarchical model of risk analysis is established, and structural property is identified as the highest risk factors during V-shaped pier construction...
Using grey relation (GR) analysis, based on analyzing influential factors of E-Commerce economy, GR space of multidimensional reference data rows, the comparing rows of main characteristic indexes and the factor indexes have been set up. The relation coefficient and relation degree is computed and the quantity of dynamic trend of E-Commerce economy is analyzed. The inference degree by dissimilarity...
According to the meaning of food security, the index system for China's food security was established and the weight on each index was given by adopting AHP method. This paper made measurement and evaluation on the level of China's food security from 2001 to 2007 by using the AHP-GRA method. The results show that the model which conforms to China's actual situation can be used as a food safety pre-warning...
Service life prediction is an important aspect of structural safety evaluation. Based on periodical or non-periodical testing results of existing structures, some comprehensive evaluation indices of time series can be obtained by reliability assessment or other evaluation methods. For the problem of remaining service life prediction, existing structures can be regarded as grey systems. Combined with...
The mass of network security data is automatically and intelligently related and analyzed, which reveals the logic relations and the attack intention hidden behind the events. Sorting the attacks on various severities, a variety of fast and intuitive analysis report is generated. It can comprehensively monitor network status, effectively guide network security management, effective prevention, block...
Highroad traffic is indispensability, not only in daily living of person, but also in the state economic development. However, frequency of highroad traffic safety or traffic accidents is more. What is more, standard of living and state economic development are restricted more and more by traffic safety or traffic accidents. With the rapid development of state economy and highroad traffic, the number...
This paper proposed a Web-based evaluation method for aeroengine health assessment which combined the advantages of the analytic hierarchy process (AHP) and a grey clustering method to guarantee the accuracy and objectivity of weight coefficients. The Web-based framework is convenient for data collection, distributed management and processing. After constructing an index system of aeroengine health...
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.