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We study the problem of multiple description coding for binary sources with Hamming distortion measure. The distortion region for the no excess rate case is explicitly characterized. Furthermore, experimental results show that the boundary points of the distortion region can be approached using a sequential coding scheme based on low-density generator matrix codes.
Different models have been proposed recently for representing temporal data, tracking historical information, and recovering the state of the document as of any given time, in XML documents. We address the problem of labeling temporal XML documents. The goal of our labeling scheme is to design a structural labeling scheme that supports the representation of ancestor-descendant relationship and sibling...
A chilled ceiling panel using PCM is developed. Study has research on its thermal performance and analysis on heat transfer mechanism. Phase change process of PCM has three stages, solid Mushy and Liquid. Mathematic model is built for the cool room and simulation is made to evaluate the thermal performance. Contact thermal resistance and conduction shape factor are taken into consideration. Existence...
This work addresses practical multiple description coding for uniform binary sources in the no excess sum-rate case. For this case Zhang and Berger have shown that the EGC* region defined by El Gamal and Cover coincides with a portion of the boundary of the MD rate-distortion region, and proposed a construction of the auxiliary variables U and V to achieve this bound. We introduce a sequential coding...
Intellectual property risk has become most important of the three risk the corporations faces in knowledge-based alliance. So this paper analyzes the influence of safeguarding behaviors to Intellectual property risk through 243 questionnaires with SEM, the main contributions can be summarized as follows: firstly, by making the concept of trust into certain behavior, from a new view, this research...
A new secure fragile watermarking algorithm for secure communication is proposed in this paper, the idea of cryptography- and the idea of side information are introduced into the security domain of watermarking system. The main idea of the algorithm can be listed as follow. Firstly, the original image is segmented into blocks and the watermark is segmented into subsections. Secondly, the embedded...
This work presents an LDGM-based coding scheme for successive refinement in the case of finite sources with Hamming distortion. Our simulations exhibit results very close to the rate-distortion bounds.
The signal transmitted is often added by white noise in the transmission channel of the communication system. That may result in the distortion of the signal and induce the difficulty of the signal demodulation at the receiving end. Comparing to the traditional estimation method which relies on amount of prior knowledge, a novel method of amplitude estimation of signal white noise based on EMD algorithm...
This paper presents a full custom design of an energy-efficient and high-performance add-compare-select (ACS) unit. The ACS circuit is a main building block in a state-parallel architecture based Viterbi decoder implementation. The proposed ACS circuit is implemented in 90 nm CMOS using static logic. A standard ACS circuit is also implemented for comparison purposes. The proposed ACS circuit provides...
On the basis of rough sets, by considering both the dynamic characteristics of the set x and the statistics information in the knowledge database, this paper constructs bidirectional probabilistic PS-rough sets model in probabilistic approximation space, discusses property and theorems of PS-rough sets, proves that PS-rough sets is the further extension of S-rough sets and Z.Pawlak rough sets, S-rough...
This paper mainly studies the growth and degradation characteristics of the atrazine degradation strain J2 isolated from the soil collected from the cornfield in northern China with a long history of atrazine application. The growth and the degradation characteristics at different pHs, temperatures and in mediums with different salinity are also studied. The results indicate that: when J2 is inoculated...
This research studied the bioremediation of atrazine polluted soil by atrazine degrading strain J2 which is isolated from the long polluted black glebe in the libratory condition. Inoculated the J2 which OD600 value is 1 into the sterilized soil and non-sterilized soil as 1% ratio (bacterial liquid volume mL /soil weight g) respectively, the atrazine concentration of the soil is 10 mg/Kg. J2 utilized...
Instant wireless sensor network (IWSN) is a type of WSN deployed for a class of special applications which have the common requirement on instantly responding for collecting and transmitting sensory data, e.g., volcanic eruption monitoring or nuclear leakage detection. In this paper, having a cluster-based WSN, we present a compensation-based reliable data delivery protocol (CRDD) to collect and transmit...
The psychological contract in the marketing relationship has attracted more and more researchers' attention. This study proposed that the psychological contract compensation of online customers was related to the category of psychological contract breach and the customers' individual value orientation, and tested it by a simulation experiment. 139 students in a Chinese university took part in the...
Magnesium-ammonium-phosphate precipitation method (MAP) is a newly-developed technique to remove ammonia nitrogen from wastewater. In this study, MAP method has been studied by using MgCl2-6H2O and Na2HPO4-12H2O as precipitators for treating highly concentrated ammonia nitrogen wastewater. The effect of pH value, formulas of precipitation and precipitator ratio on MAP precipitation efficiency has...
Adaptation helps retinal ganglion cells encode varying visual signals. However, an index for population adaptation is still lacking. In present study, we applied entropy theory to characterize the process of adaptation for a group of ganglion cells under the stimulus of both full-field white light and pseudorandom checker-board. We noticed that entropy rate shared the same trend with meaning firing...
Studies on the residue of atrazine in the soil have recently aroused great concern. This article studies the methods of determining the residue of atrazine in the soil, and thus helps solve the problems of pesticide residue. Use methanol aqueous solutions (9:1) to extract the atrazine in the soil. Concentrate the methanol, then chloroform extracted. After concentrating to a defined volume, use GC-14C...
This paper mainly studies the growth and degradation characteristics of the Atrazine degradation strain J6 which is isolated from the soil, collected from the corn field in northern China with a long history of atrazine application. The growth and the degradation characteristics at different pHs and temperatures are also studied. Adding J6 into the medium by the ratio of 1 %(v/v), J6 is able to degrade...
This paper studies how chemical modification influences the Saccharomycescerevisiae adsorption on copper ion and the desorption of nitric acid, and carries out infrared spectrum analysis of native, adsorbing and desorbing saccharomyces cerevisiae. Results show that carboxyl and amino group in Saccharomycescerevisiae play an important role in the process of adsorbing Cu(II). The adsorption on Cu(II)...
The distribution and composition of the planktonic algae community in Xi Quanyan reservoir was investigated, it showed the dominant species were diatom and chlorophyta. According to the comprehensive trophic state of the multiple monitoring results of the different sampling points in the entrance, centre and exit of the Xi Quanyan reservoir, calculate the comprehensive trophic state index to gain...
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