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Big data is cutting-edge technology extensively applied to enterprise management based on cloud computing, and it brings a brand-new perspective for enterprise crisis management. Using big data technology to collect, screen, analyze and apply data generated by enterprise crisis incidents and formulating and implementing data-driven enterprise crisis management strategies help to elevate level of enterprise...
Transformer oil-based nanofluids have gained wide recognition for its higher dielectric strength compared with pure oil. But few researches focus on its thermal capability. In this paper, computational models working on different kinds of nanoclusters in transformer oil fluidic system have been developed at an atomic-molecular level to explore the temperature impact on the systems' viscosity. SiO2...
In view of the demand for full size large stealth target's RCS measurement, the outdoor field RCS measurement, especially the direct signal processing technology, is also put forward higher requirements. In offsite relative calibration, the calibrator can be exactly equal to the reference branch coherent measurement system and how to make use of this characteristic will directly affect the precision...
Aimed at the electromagnetic compatibility problems between same frequency radars on fleet battle ships, the maximum radar range is used to describe the EMC degree between the same frequency or similar frequency radars in radar system. The radar system is divided into Omani-directional antenna and directional antenna radar to analysis and get the two radar electromagnetic compatibility models, then...
With the increase of students, electronic laboratories and instruments have become in critical need in many universities and colleges, thus the construction of virtual laboratory and virtual instruments have attracted attentions of many researchers. LabVIEW is the most widely used virtual instruments developing software with the most powerful functions, which can be used for virtual instruments developing,...
Currently semantic annotation is a key technology of data provenance tracing and a research focus. Semantic annotation provides users with rich semantic provenance information to meet tracing needs of different users, which can effectively improve the effectiveness and relevance of data provenance tracing. For meeting the needs of data provenance dependency analysis, a model of data provenance semantic...
Through using the ArcGIS software as the platform, and taking DEM analysis, raster calculation and spatial interpolation of spatial analysis technology as the core method, this paper selects Menghai County as the study area, combines with the Delphi method, analytic hierarchy process, fuzzy membership function, farmland Integrated Fertility Index ( IFI ) and other methods, to establish major factors...
Trust in Peer to Peer network has the fuzzy feature, and thus it cannot be described and handled using distinct mathematic model. To solve the problem, based on the advantage of using intuitionistic fuzzy theory to handle vague information, we propose a novel P2P trust model named IFTM (Intuitionistic Fuzzy theory based Trust Model), which uses membership, nonmembership and hesitancy degree to describe...
We consider the problem of designing a network of minimum cost while satisfying a prescribed survivability criterion. The survivability criterion requires that a feasible flow must still exists (i.e. all demands can be satisfied without violating arc capacities) even after the disruption of a subset of the network's arcs. Specifically, we consider the case in which a disruption (random or malicious)...
The different price elasticity of supply leads to the differences in a dynamic pattern of price adjustment to a global liquidity shock in the short run, but the products with low elasticity such as the agricultural commodity may cause an "overshooting" price in the short run. This paper attempts to confirm which has the more effect on our domestic food price inflation, U.S liquidity excess...
Characteristics vibration and stiffness of astromesh deployable antenna is mainly decided by circle truss. So vibration of circle truss is necessary to be analyzed. At first, analyze the structure of the astromesh deployable antenna, and set up mass matrix, stiffness matrix and force vector of link ending points with the method of finite unit. Then transforming-coordinate matrixes and expanding-coordinate...
A scroll air motor, also known as a scroll expander, is a relatively new concept to pneumatic actuators. Its unique structure leads to its feature of high ability in energy conversion. In recent years, scroll air motors have been adopted by combined heat and power boilers, uninterrupted power supplies, and some other energy storage systems as a new mechatronic device for energy conversion. The paper...
This paper proposed a dynamic model for risk measurement of construction project based on the relationship of risk factors. First, it analyzed the content and the process of risk measurement. Second, it developed the chart of risk measurement involving life cycle. Because of the relationships in parallel or series among risk factors, the risk measurement for different stages in the life cycle is different...
The fractal theory is beginning from the 1970s, which take the geometrical morphology with the characteristics of non-regular and self-similar in nature and real life as the research object. Application field of this model is very extensive, and in economic management, as commodity price exhibits the characteristics of non-regular and self-similar to a certain extent, so this model is used as new...
On the basis of psychological contract studies at home and abroad this paper analyses service enterprises and draws a psychological contract model for the service enterprise and customer through defining customer psychological contract concept under the marketing situation. Also, it explores the composition of various structural dimensions. It remains to see if contract model can be applied to service...
This paper discusses the basic principle of the fractal theory and the basic thinking of how to use it to forecast the electricity price, then build electricity price forecasting model and make a analysis on the prediction error to put forward improvement. Before the application of fractal mode in the price forecast field, there is a need to do R/S analysis of the data series to derive its index Hurst;...
Reputation evaluation in mobile commerce (MC) is a complicated system issue. After analyzing deficiencies of decision model in existing reputation management system, and combining with characteristic of MC, the paper presents a new reputation evaluation model (REM) used in MC. The model improves the reputation fraud prevention ability, for example, the cahoots fraud, the cumulating the reputation...
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