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In both Fourier Transform Spectroscopy and Time-Domain Spectroscopy in the THz frequency region, many of the measurements are performed on samples of a single material and given known thickness to either characterize a material sample, characterize a reference substrate of material for a subsequent measurement, or where superior data on that sample exists, calibrate the system accurately. In this...
The ever increasing amounts of digital data being stored in public and private clouds are challenging users to access and manage the data. With the corresponding storage system reaches Petabyte-scale, or even Exabyte-scale, metadata access will become a severe performance bottleneck. Hence, this paper proposes an efficient multi-dimensional metadata index and search solution for cloud data. By proposing...
Empirical mode decomposition (EMD) is a simple and real-time procedure to adaptively decompose a signal into a set of oscillation scales, but it faces the serious problem of mode mixing. The improved complete ensemble EMD with adaptive noise (Improved CEEMDAN) can successfully eliminate the mode mixing by adding white noise's IMFs and utilizing an ensemble and average procedure, but it does not satisfy...
In a P2P media streaming system, a centralized tracker server is always used to maintain the topology. However, sometimes the server becomes overloaded when too many clients are coming. Then, the response time is too long because of many frequent VCR operations and the tracker server cannot support large-scale users' requests. In this paper, a distributed tracker organization is designed to solve...
Recently research on the evaluation of pipeline leak detection systems has been developing due to the widespread of natural gas supply through pipeline transportation in urban areas. This paper presents an improved fuzzy comprehensive evaluation method for assessing the performance of leak detection systems. In this method, the weights of different indexes are calculated by combining entropy weight...
In the current, the structured P2P-based time-shifted streaming system exist the problems that the copy of time-shifted streaming cannot be fully found and the maintenance costs are higher. For resolving the problems a structured P2P-based hierarchy search model for time-shifted streaming, namely Hier-DHT, is proposed. In Hier-DHT, the hierarchy is divided according to the first video block in the...
In this paper, we propose a test data compression method, which combines the advantages of dictionary-based compression and bit mask-based compression. We present a kind of Unfixed-Based Index (UBI), which uses shorter indexes to represent the slices with higher occurrence frequency, while uses longer indexes to represent the slices with lower occurrence frequency. Then, we adopt efficient bit mask...
This paper defines the vulnerability of regional social and economic system. According to the principles of establishing evaluation indices, this paper attempts to construct a set of synthetic evaluation indices, including the most important causes of vulnerability produced by natural resources, population and artificial causes, and the results of vulnerability showing the economic, social and natural...
Based on defining the vulnerability of regional social and economic system, this paper attempts to construct a set of synthetic evaluation indices. The weights of the various indices are calculated by the analytic hierarchy process (AHP). The synthetic evaluation of vulnerability of regional social and economic system is evaluated by means of grey clustering. The evaluation results is scientific and...
Traditionally embedding parameters: embedding dimension m and delay time τ are determined separately in state space reconstruction of chaotic dynamical systems. While recently some researchers argued that delay time window τw = (m-1)τ should be determined first. In this paper we carry out a contrast test and come to a conclusion that m rather than τw is more crucial for the quality of reconstruction...
This text has set up a comprehensive appraisal model and method for Green Product, which is utilized with coordinated analytical method. In practice, every thing has advantages and disadvantages in themselves at the same time. The model can balance the both sides of it, and provides an optimal answer for the sequence of the projects. Meanwhile, it provides green products comprehensive index system...
On the basis of establishing the appraisal target system of the textile enterprise's independent innovation ability, in this paper, the Delphi method and the fuzzy comprehensive evaluation have been utilized to evaluate objectively the independent innovation ability of textile enterprise. The appraisal result has indicated that the establishment appraisal target system and the used assessment method...
The study investigates the relationship between environmental satisfaction and personal well-being with a sample of 336 urban residences from 4 Chinese cities: Changchun, Dalian, Harbin and Shenyang. In contrast to previous studies, this study controlled job satisfaction and Big Five personality traits. In addition, the research variables of PWI, job satisfaction, Big Five, and environmental satisfaction...
To the risks of technological innovation, risk evaluation index system is set up, and the comprehensive evaluation model is introduced in this paper. The weight of each risk factor influencing technological innovation in the model has been objectively calculated by using improved genetic algorithm . A practical example shows that this method can obtain the optimum scheme and provide the scientific...
Choosing a cotton variety involves making comparisons over many trials and across an increasingly large number of available varieties. To aid in this process, a computerized tool has been developed at the Texas Tech University. This tool, called COTWIZ, based on the cotton variety selection model, allows multiple comparisons of varieties across a number of trial locations. COTWIZ based on the cotton...
A new quantified model of evaluating the economic risk of technology innovation project which based on Monte Carlo simulation technology has been proposed in this paper. That is use three point which are maximum possible value, minimum possible value and the most possible value to estimate the risk variable. Using AHP method, variable weight of delivered and extended risk to determine the weight of...
This builds terminal operations evaluation module for China coast guard ship simulator by VC++6.0. The evaluation index weight is calculated by Vector similarity, the ship is separated into the various points and berths are separated into polygons and the distance is calculated numerically between berths and ships. A model of evaluation of environmental factors is constructed on the basis of the establishment...
The paper improved the evaluation model of real estate project risk which based on Monte Carlo simulation technology. That is use three point which are maximum possible value, minimum possible value and the most possible value to estimate the risk variable. Using AHP method, variable weight of delivered and extended risk to determine the weight of each risk factor in the model objectively, and verifying...
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