The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Massive number of devices must operate for a long time with very limited chance to contact energy sources in current Machine-to-Machine (M2M) network, so power saving mechanism is very essential. In this paper, we analyze energy efficiency of Contention Tree Algorithm(CTA), which is one popular contention based data transmission method currently, and propose one enhanced CTA: Power Saving CTA(PS_CTA)...
Multi-aspect PolSAR data contains polarimetric properties from different look angle. Multi-aspect polarimetric information can be applied in geometric measurement, target identifying, precise classification. In order to characterize anisotropic target, anisotropic and isotropic scattering need to be separated from the raw data. A detecting-removing-incoherent-adding (DRIA) framework, presented in...
The blur which is caused by the relative motion between the camera and object scene is called motion-blur. The blur direction and the motion-blurred image are essential for image restoration, which is degraded by the relative motion. And directly affect subsequent image recognition and image analysis. The recently developed approach based on a fractional directional derivative operator with noncausal...
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...
Protein-protein interactions (PPIs) play a key role in many cellular processes, such as the regulation of enzymes, signal transduction or mediating the adhesion of cells. Knowing the PPI types can help the biological scientists understand the molecular mechanism of the cell. Computational approaches for identifying PPI types can reduce the time-consuming and expensive of biological experimental methods...
totally 77 physicochemical properties of amino acids are collected and used as the structural descriptors of peptide sequences, and based upon it several statistical models are constructed by using stepwise multiple regression (SMR) and partial least squares (PLS) regression. In both MRL and PLS model, the obtained correlation coefficients r are all above 0.95. And then the predictive capability of...
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...
The Mathematical statistics is an indispensable and important method to evaluate the quality of Chinese traditional medicine. With the constant development of society, economy, science and technology, the contents of the mathematical statistics are being gradually expanded. This paper introduces several methods about application of Mathematical statistics in quality control of Chinese traditional...
According to the complexity of financial system, the model of credit risk assessment based on PSO algorithm and BP neural network integrated is proposed, which in order to improve the accuracy and reliability of risk assessment. First the neural network model of a credit risk evaluation is created, and then PSO algorithm is introduced to optimize the weight and threshold of the neural network, at...
We give a "regularity lemma" for degree-d polynomial threshold functions (PTFs) over the Boolean cube {-1,1}n. Roughly speaking, this result shows that every degree-d PTF can be decomposed into a constant number of subfunctions such that almost all of the subfunctions are close to being regular PTFs. Here a "regular" PTF is a PTF sign(p(x)) where the influence of each variable...
In coupled-mode analysis, an approximate treatment for radiation modes in open waveguides by equivalent leaky modes in equivalent closed waveguides is presented. The equivalent closed waveguide obtained by enclosing an open waveguide with properly designed PML (perfected matched layer) terminated by PEC (perfect electric conductor) consists of a complete set of orthogonally discrete complex modes...
The project approval evaluation of science and technology industrialization projects are the important stage in evaluate the industrialized value and judge the industrialized condition of scientific and technological achievements. This paper analysis the deficiency in the evaluate logic, contents, operability of the current project approval evaluation of science and technology industrialization projects,...
The remuneration incentives and the indexes of their effect measurement for the managers of the State-Owned Enterprises (SOE) are systematically designed in this paper, and the descriptive statistic analysis is made of the empirical samples. The principal component analysis and the cluster analysis are used to carry out the dimension reduction and weight assignment of the index structure vectors of...
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...
This paper outlines the application of orthogonal frequency-division multiplexing (OFDM) in digital communication channel, then studies the turbo codes, mentions the concatenation of turbo codes and Reed-Solomon (RS) codes and analysis the performances of the new concatenated forward error correct (FEC) scheme applied to an OFDM system based on the digital terrestrial video broadcasting (DVB-T) scheme...
In this paper we first introduce the basic theory of AHP. Then, we discuss the method of realizing AHP toolbox on the platform of MATLAB. The designed AHP toolbox uses graphical user interface and menu interface. All the operations can be done by internal function calls and switches on parameters. We also verify the efficiency and reliability of the designed AHP toolbox by using an example.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.