Abstract:The steam injection thermal recovery technology has often been applied to the exploitation of heavy oil. In actual production, the heat dissipation loss is serious because the steam injection pipelines are very long and in the open air. This has greatly influenced the benefit of oilfield exploitation. Optimizing thermal insulation materials and thermal insulation structures can effectively reduce heat dissipation loss, but the calculation of related data is very complicated. To improve the efficiency of information collection and processing and to increase the speed and accuracy of the calculation, this study introduces information technology to the analysis project of the thermal insulation benefit of heavy-oil steam-injection pipelines. Through constructing an evaluation model of the thermal insulation benefit of heavy-oil steam-injection pipelines, we identify the main parameters affecting the evaluation of the thermal insulation benefit and build an evaluation system of the thermal insulation benefit of heavy-oil steam-injection pipelines. This system can automatically calculate heat loss and carry out visual analyses according to the actual operating environment and loading condition of a steam injection pipeline. At present, this system has been applied in the Xinjiang Oilfield. The calculation results of the system can benefit the accurate and fast optimization of thermal insulation materials and thermal insulation structures, thereby effectively improving the benefit of oilfield exploitation.

Abstract:In the process of removing the jacket platform with the internal cutting method, the pile leg needs to be dredged. The dredging pump is the key equipment of the dredging system in the pile leg, and its performance directly determines the work efficiency of the dredging system. The performance of dredging pumps is comprehensively evaluated based on entropy weight–fuzzy analytic hierarchy process to obtain the optimal configuration scheme of dredging pumps in the dredging system. A mathematical model for evaluating the performance index of dredging pumps was established, and the most preferred scheme was obtained from five dredging pumps with similar performance. The research results show that the NSQ100-60-45 dredging pump has the largest comprehensive evaluation weight, and its performance is more suitable for mud pumping operations in the legs. The performance evaluation model in this study is highly reliable and can give guidance to the type selection of dredging pumps in the dredging system.

Abstract:Network security has become a priority research field in China in recent years, for there would be no national security without network security. In consideration of the characteristics of data source in network security like diversity and complexity, this study proposes an evaluation model of network security situation based on Support Vector Machine (SVM) and self-adaptive weight. The model is composed of training module and prediction module. The training module is used to obtain the key data concerned by network security through prior knowledge method and build evaluation model with a combination of SVM and weight strategy. The prediction module is used for real-time network security situation evaluation. Analysis of experimental process and results indicates that the proposed model can favorably support the real-time prediction and evaluation of the security situation of small-size networks.

Abstract:With the coming of New Media Era, the spread of network information has become more extensive. Many online video evaluation activities were carried out by some institutions, while an evaluation method with rationality and fastness is lacked. In this study, we establish the hierarchial analysis model of many index signs on the basis of analyzing factors of online evaluation. The major steps of AHP and further PageRank optimization method are provided, which can be used to calculate weight values of index and obtain the final ratings. These research methods have certain reference values to dealing with multipleindexes appraisement.

Abstract:The problem of consumers choosing smart phone is discussed in this paper. The influencing factors of purchasing smart phone are analyzed according to the Delphi method, and 11 evaluation indexes are initially established. Then, rough set attribute reduction principle is used to reduce the 11 evaluation indexes and the 6 core evaluation indexes are obtained. Finally, the entropy weight method is used to empower these evaluation indexes, and the comprehensive evaluation model of the smart phone is established. The selection of those 12 smart phones is evaluated. The results show that this method is effective and reasonable.

Abstract:In view of the problem that service from provider cannot meet the needs of the users in the network environment, this paper introduces the Quality of Experience (QoE) and Quality of Service (QoS) parameters. Through simulation network, the corresponding data are obtained. And two evaluation models (QoE with bit rate and QoE with packet loss rate) are established by using MATLAB tools. Analyzing the data of evaluation models with statistical analysis method, the model is verified by comparing with Stevens Power Law model and Weber-Fechner Law model. The result shows that the evaluation models can precisely express the relationship between QoE and QoS, and it can provide the direction of service and an important reference for the service providers.

Abstract:To promote the standardization of hospital informatization construction work, strengthen the construction of hospital information management, supervision, guidance and assessment, this paper constructs a hospital information system evaluation system model with a broad representativeness, which makes the process of hospital information can be sustained and healthy developed. It calculates every single index weight by using the Analytic Hierarchy Process method, so that it can get the total score of the system performance testing and functional testing. With the score it can make the comprehensive evaluation of hospital information system. It scientifically evaluates the information system of two Affiliated Hospital of Xinjiang Medical University by the model, and gives the suggestions to improve the work.

Abstract:With the development of computer technology and network, fully exploiting of the trust relationship between network users become hot spots among network operator platforms. A method of user trust degree evaluation model constructing with user attribute information as evolution index is proposed in the article. Also,the paper focuses on how to use the analytic hierarchy process(AHP) to determine the weight of each evaluation index to mitigation of human subjective factors. On the basis of introducing the AHP, the weight of the evaluation index in the user trust evaluation model is given. Also the application of AHP makes the model more scientific, simpleand effective.

Abstract:The traditional evaluation methods rely on simulation environment to simulate real network traffic status quo, the proposed intrusion detection system is based on OpenFlows assessment. The system is software-defined networking technology (OpenFlow) evaluation model based on the intrusion detection.We discussed the framework, setting methods, and specific work of this model in details. Our work designed an evaluation system based on this model, which uses a flexible network OpenFlow control structures for the evaluation of the true IDS controlled network environment, and provides the necessary intrusion detection and attack the real network traffic data. Finally, the evaluation system was used to test the simulation model. The experimental results show that compared to the traditional methods, the proposed OpenFlow intrusion detection model based on the evaluation can assess the effectiveness and accuracy of better performance.

Abstract:Fuzzy comprehensive evaluation is widely used in evaluation. Based on thorough analysis of the FCE model, this paper puts forward the design idea of FCE general software, develops a stand-alone prototype, which can be used to give the solution of those problems whose condition is undetermined, boundary is not clear and difficult to describe quantitatively. Finally, it takes economic benefits evaluation on enterprise quality as an example, using the software to evaluate. The results prove the effectiveness and practicality of FCE software, provide a reference for the design and development of higher class evaluation software.