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According to the noise and overlapping characteristics of agricultural irrigation water quality monitoring data for the comprehensive evaluation may bring about the boundary fuzzy problem. This paper proposes an improved Genetic Algorithm (GA) to avoid premature convergence, the global optimal solution of the function of the Projection Pursuit (PP) function is used as the comprehensive evaluation...
Stock market prediction has attracted a lot of attention from both business and academia. In this paper, we implement a model based on Recurrent Neural Networks (RNN) with Gated Recurrent Units (GRU) to predict the stock volatility in the Chinese stock market. We also propose many price related features which are used as inputs for our model. Apart from that, we carefully select official accounts...
In order to improve the electric car battery safety early warning ability and decrease the safe accident of electric vehicle charging, the electric vehicle charging safety factors are analyzed, the security early warning index selection ways and methods are studied, and a security early warning evaluation index system is set, the evaluation method of weight for safety index is discussed. Besides,...
Change detection is a hot issue and is of great significance in remote sensing. The logarithm operation is a valid way to reduce the influence of multiplicative noise in the Synthetic Aperture Radar (SAR) image. However, changed areas with high gray level values will be weakened due to the nature of the logarithmic function. In this paper, a SAR image change detection framework based on visual attention...
In the future wireless heterogeneous network, it is significantly critical to rationally and efficiently utilize network communication resource for satisfying the diversification and differentiation of user and service requirements. In this paper, we propose a user-centric wireless access and service matching scheme in heterogeneous networks with multiple radio access technologies (Multi-RATs). We...
Objective: To observe the nutritional support effects of calorie for senile chronic diseases. Methods: The 72 selected senile patients were divided into 2 groups, or the calorie restriction group and the non-calorie restriction group. Nutritional support was given by nasal feeding. The change of the nutritive index and the incidences of complications were observed in the 2 groups. Results: Hematochrome,...
The impact of depth map compression on synthesized virtual view quality is analyzed. We take the view synthesis experiment for depth map and color image symmetric and asymmetric compression. The results demonstrate that the depth map is less important than the color image in view synthesis. When the color image compress at the fixed index, keep the depth map compression within a certain range, the...
In this paper, we study the routing problem in multi-hop cognitive radio networks (CRNs). We observe that Primary Users (PUs) in CRNs exhibit unevenly geographic distribution due to their social behaviors. In the area with densely-distributed PUs, the low spectrum availability will severely decrease the Secondary Users (SUs) communication reliability. We are motivated to exploit Primary User (PU)...
Enhancing system throughput and improving user fairness are two basic but contradictory objectives for resource allocation in wireless cellular networks. To obtain an efficient tradeoff between these two goals, Network Utility Maximization (NUM) framework has been adopted with log-utility to obtain proportional fairness among all the users in the network. However, such tradeoff can not control the...
Spatial Modulation is a newly developed concept for multi-antenna systems, which could greatly reduce the signal processing complexity and hardware implementation burden faced by these systems today. To improve the spectral efficiency of spatial modulation system, a novel precoding scheme for downlink multi-user system is proposed in this paper. The precoding scheme not only cancels the inter-user...
In wireless resource allocation, improving system throughput and simultaneously enhancing user fairness are two fundamental but contradictory objectives. As for fairness, both short-term and long-term fairness are of significant importance. However, less effort has been dedicated to explore the optimal tradeoff between system throughput and the two mentioned fairness in terms of widely used Jain's...
Virtual Screening involves massive computing tasks with millions of molecules docking on the targeted protein. Such data-intensive science always faces the challenge of managing tens of TB datasets, which gives rise to the requirement of large-scale storage. Furthermore, the efficient query and transmission of the large-scale datasets are the other key requirements during the virtual screening progress...
Based on the principles of reliability and maintainability, a type of gun fire control system was taken as research object. The method combining the system composition character with the system reliability index allocation model was used to realize the technique of system reliability. The system failure rate and fault distribution principle were combined with maintainability realization principle...
Combined entropy method with TOPSIS method, a comprehensive assessment model for personnel assessment is built. The model firstly adopts entropy method to solve the objective weights of multiple indexes in multiple attribute decision problems, which eliminates the subjective influence of artificial factors, the general difference and other defects in traditional weighting methods; and then TOPSIS...
Based on literatures, enterprises' organizational learning structure includes six dimensions. That is, team orientation, system orientation, learning orientation, memory orientation, external orientation, as well as support orientation. In terms of the data acquired from the questionnaire, the article also undertakes exploratory factor analysis and confirmatory factor analysis. As the result reveals,...
Knowledge sharing behavior is the attitudes and manners that team members do things in the process of complex product development knowledge sharing. This paper analyzes three factors that influence team members' knowledge sharing behavior in complex product development which are self-efficacy, trust and outcome expectation. Then study assumption and study model are put forwarded, and influencing effect...
According to the needs of quality control for graduate training, the model of graduate training quality-planning guarantee serviced to the college is researched. The target of the model is to meet the quality demand of graduate, and the foundation of the model is the theory of QFD. Combined with the training system of college graduate and based on level evolution decomposition and layer-by-layer mapping,...
In this paper, we will present some recent developments of flat-lens designs for microwave imaging applications at the EMC Laboratory of Perm State. We will also describe a procedure for systematically synthesizing artificial dielectrics, e.g., MTMs, for flat lens designs that can achieve a sub-wavelength focal plane behavior. The design has the advantages of being wideband and low-loss, and it is...
An incremental algorithm for model checking progress properties is proposed. It follows from the following insight: any SCC-closed region of a system's state graph can be represented by a sequence of inductive assertions. Each iteration of the algorithm selects a set of states, called a skeleton, that together satisfy all fairness conditions; it then applies safety model checkers to attempt to connect...
This paper constructs a partial equilibrium of housing flow market to investigate the impact of foreign investment upon housing prices. The theoretical model demonstrates that the inflow of foreign investment will result in the appreciation of house prices. The empirical results illustrate that the foreign investment has a trivial impact on the house prices. In addition, the paper finds that the household...
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