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In GIS field, the efficiency of shortest path search algorithm is widely existed and need to be resolved imminently. In this paper, author analyzes the optimization means based on dijkstra algorithm and brings forward his optimization schemes half space optimizing dijkstra's shortest path algortithm form two aspects optimization of data storge configuration and searching direction. Compared to the...
By analyzing the condition of the electricity market, this paper described the current development of the renewable energy and its future trend with a Population Competition Model. In this open Distributed Generation and Demand-Supply-Interacted Smart Grid platform, the development of the traditional energy and renewable energy is similar to the population competition. Also, this paper has predicted...
Fossil Fuel is one of the main pillar of resources in current society. Seventy-four percent of the total global consumption depends on it, including coal, petroleum etc. Nevertheless, a great number of countries start to focus more on renewable energy due to the current severe contamination and low efficiency. Development is restrained by many factors, such as low efficiency of light conservation...
The problem of fault accommodation in nonlinear dynamic systems is considered. Solution of the problem is related to constructing the control law which provides full decoupling with respect to fault effects. The logic-dynamic approach is used to solve the problem. The main features of this approach are: it involves known linear methods that results in possibility to solve the fault accommodation problem...
The physical environment in which transmission grid resides has a major effect on the resulting reliability of the network. The inclusion of lightning conditions in reliability analyses of transmission grid is discussed. This paper illustrates the approach to establish reliability assessment model for transmission line and substation equipment according to lightning disaster level and line segments...
The PLC(Programmable Logic Controllers) have been used widely in the Launch Control System of launch vehicles. All the products of PLC are COTS(Commercial Off-the-Self) products, which cannot meet the requirement of the Launch Control System in the launch site with tough environment (for example, Salt Spray environment), especially the tightness, power cost and reliability and so on. According to...
Epiretinal electrical stimulation provides a promising approach to restore functional vision for patients suffering from retinal degenerative diseases. The electrodes of epiretinal prosthesis stimulate the surviving ganglion cells and cause visual percepts. To further improve the performance of epiretinal electrodes, an optimized solution in electrode design has to be found based on modeling analysis...
Forecasting stock price is always the hottest topic for investors. In recent years, many time series models have widely been used in forecasting stock price for achieving the smallest lost in investment. However, the previous time series models still have some problems: (1) previous researches selecting the important technical indicators depend on subjective experiences and opinions; (2) conventional...
As a basic structure of computational geometry, Voronoi Diagram is important to data analysis of GIS. Considering the limitations of traditional vectorial and raster generation algorithm of Voronoi diagram, this paper proposes a spherical Full-Feature Voronoi diagram generation algorithm based on vector data. Through the design of an integrated perspective projection model, data and its connected...
In the error-prone transmission environment, the quality of a video sequence may be damaged because of noise or packet loss. Error concealment techniques were proposed by using the temporal or spatial information to recover the damaged data. We propose a new error concealment method with a cooperative game to adaptively select the proper error concealment algorithms to reconstruct the data. By applying...
The clock spectrum contains spurious tones due to the periodic carries when fractional frequency control word is used in flying-adder frequency synthesizer. This paper presents a fractional pseudo random binary sequence (PRBS) technique for spur reduction. The proposed technique consists of an improved linear feedback shift register (LFSR) as pseudo random address generator, and a reduced read-before-write...
Credit risk evaluation of listed enterprise group scientifically contributes to improving the risk management ability of commercial bank. The amount of connected transaction to total assets ratio was used as index which reflects the characteristic of group, and probabilistic neural network (PNN) was used to evaluate the credit risk of listed enterprises in Shanghai and Shenzhen A shares. The empirical...
Let q ≥ 3 be odd prime power. Maximal designed distances of non-primitive Hermitian dual containing q2 — ary BCH codes of length n = (q4 −1)/2 and 2(q2 −1) are determined. For each given n, a group of non-narrow-sense Hermitian dual containing BCH codes are constructed and their dimensions are computed. Using these non-narrow-sense BCH codes, many new quantum codes are constructed. Our maximal designed...
This paper presents an alternative algorithm that can reduce the size of a training set for a feed-forward neural network while obtaining similar levels of accuracy of classification as when the whole training set is used. The algorithm processes the training set by selecting only input vectors at the boundary between consecutive classes of data to be included in the reduced training set. The algorithm...
Objective: To reveal technological development and innovative capacity in the field of medical radiation diagnosis device based on bibliometric analysis of international patents. Methods: The study searched and retrieved international patents in the field of medical radiation diagnosis device from THOMSON INNOVATION DATABASE for quantitative analysis of patent distribution by country and by institutions...
This paper describes a pragmatic approach for design, characterization and test of a low cost microstrip slot applicator with 140×140cm aperture, running at 2.5GHz, in the near field approximation. The applicator structure, designed on glass-reinforced epoxy copper clad (FR406), can handle 100–200W microwave power. The applicator is designed to heat lossy high dielectric liquids. A thermal map produced...
The notion of ‘classes of a path in an Entity-Relationship (ER) data schema’ has been proposed as a means of identifying and formalizing the capability of a database in answering a query. In the literature, a possible approach based upon Description Logics (DL) has been put forward to accurately and formally describe paths in ER schemata. However the reasoning part of classifications of paths has...
The presence of edge-disjoint Hamiltonian cycles provides an advantage when implementing algorithms that require a ring structure by allowing message traffic to be spread evenly across the network. Edge-disjoint Hamiltonian cycles also provide the edge-fault tolerant hamiltonicity of an interconnection network. We will study the property of edge-disjoint Hamiltonian cycles in transposition networks...
Automatic natural scene understanding and annotating regions with semantically meaningful labels, such as road or sky, are key aspects of image and video analysis. The annotation of regions is a considered helpful for improving the object-of-interest detection because the object position in the scene is also exploited. For a reliable model of a scene and associated context information, the labeling...
A Simple signal compensating strategy for digital inverter is proposed. Because of the non-ideal characteristics from the transformer and MOSFET modules, the output waveforms in positive and negative cycles are non-equaled. This phenomenon will cause the inductive load saturated, and the switches get damaged easily. Thus, the proposed strategy is to combine pulse signal and the reference signal of...
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