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Risk Analysis on Groundwater Resources Carrying Capacity Based on Blind Number Theory

Wuhan university Journal of Natural sciences 2007年第4期12卷 669-676页

作者： ZHANG Ji1,2,YU Sujun3.. Key Laboratory of Mountain Hazards and Surface Process,Chinese Academy of sciences/Institute of Mountain Hazards and Environment,Chinese Academy of sciences,chengdu 610041,{3.,china 2. Graduate university of the Chinese Academy of sciences,Beijing 100049,china 3. school of environmental science and engineering,southwest jiaotong university,chengdu 610041,{3.,china Key Laboratory of Mountain Hazards and Surface Process Chinese Academy of Sciences Chengdu China Graduate university of the Chinese Academy of sciences Beijing China Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu China school of environmental science and {3. Southwest Jiaotong University Chengdu China

Blind numbers of evaluation indices about groundwater resources carrying capacity are defined from the concomitancy of randomness, fuzziness, grey property and unascertainment of groundwater system. Based on fuzzy theory, a comprehensive evaluation model on groundwater resources carrying capacity is constructed with blind information. Then a risk assessment model of surcharge about groundwater resources carrying capacity is established on blind reliability theory. The probable value ＂＊＂ matrix of fuzzy membership degree about carrying capacity corresponding to each judgment level can be obtained with the aid of blind algorithm as well as the subjective reliability ＂×＂ matrix. And then a graph of ＂groundwater carrying capacity v.s. accumulative reliability＂ can be gained Based on the graph, fuzzy membership degree of groundwater resources carrying capacity to each judgment level under different risk probability can be got. Thus, a comparatively reasonable judgment to groundwater resources carrying capacity might be obtained, with comprehensive analysis to the state of society, economy technology and ecology.

关键词： blind number theory groundwater resources carrying capacity evaluation risk analysis

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Co-expression and Immunity of Legionella pneumophila mip Gene and Immunoadjuvant ctxB Gene

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Acta Biochimica et Biophysica Sinica 2005年第3期37卷 199-204页

作者： Tao WANG Jian-Ping CHEN Hong LI Ke-Qian ZHI Lei ZHANG Chun-Lei YANG Da-Chang TAO school of Precliaical and Forensic Medicine of West china,sichuan {3.,chengdu 610041,china school of Stomatolngy,Xi'an jiaotong {3.,Xi'an 710004,china school of Life science,sichuan {3.,chengdu 610041,china school of Preclinical and Forensic Medicine of West china Sichuan UniversityChengdu 610041 China school of Stomatology Xi'an Jiaotong UniversityXi'an 710004 China school of Life science Sichuan UniversityChengdu 610041 China

The mip gene of Legionella pneumophila and the ctxB gene of Vibrio cholerae were amplifiedby PCR *** amplified cDNA was ligated to the pcDNA3.1(+)*** recombinant plasmidspcDNA3.1-mip and pcDNA3.1-ctxB were identified by restriction analysis and PCR,and further confirmedby sequencing ***3.3.cells were transfected with pcDNA3.1-mip and pcDNA3.1-ctxB accordingto the Lipofection *** and stable products of the co-expression of the mip gene and ctxB genewere detected by immunofluorescence and Western *** results showed that NIH3.3.cells weresuccessfully transfected,and that the transiently and stably co-expressed products can be detected in thetransfected *** detect the humoral and cellular immune response in immunized mice induced by the co-immunization of the mip and ctxB genes,female BALB/c mice were immunized intramuscularly with pcDNA3.1-mip and *** results showed that the specific antibody titer and the cytotoxic T-lymphocyteresponse for pcDNA3.1-mip immunization and co-immunization were increased compared with that ofpcDNA3.1(+) ***,the specific antibody titer and cytotoxic T-lymphocyte responsefor co-immunization were increased compared with that of pcDNA3.1-mip *** analysisusing one-way analysis of variance(ANOVA)showed that there was a significant difference between thegroups(P<0.01).The results indicated that the ctxB gene enhanced the humoral and cellular immune responseto the mip gene *** findings provide experimental evidence to support the development ofthe *** DNA vaccine.

关键词： Legionella pneumophila co-expression humoral immunity cellular immunity

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Sorption of a triazol derivative by soils: importance of surface acidity

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Journal of environmental sciences 2003年第3期15卷 383-387页

作者： WU De-yi (school of environmental science and {3., Shanghai jiaotong university, Shanghai 200240, china.) school of environmental science and {3. Shanghai Jiaotong University 上海 200240

The sorption of a triazol derivative, 1-(4-chlorophenyl)- 4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)penten-3.ol with a common name of S3.07D, on fifteen soils and three H_2O_2-treated soils was investigated. The sorption isotherm for each untreated and treated soil was non-linear, and was best fitted to Freundlich sorption equation. Soils containing high amount of clay content or organic matter or both sorbed much higher amounts of the chemical than soils that had low contents of these soil constituents. H_2O_2-treated soils showed considerable sorptive affinity for S3.07D. It was concluded that both organic matter and mineral fraction in natural soils contributed to the sorption of the basic compound. Sorption by the H_2O_2 treated soils increased as suspension pH decreased, but all suspension pHs exceeded the pKa of the compound by more than two units. This implies that organic base protonation can occur on surfaces of soil components, and surface acidity (exchangeable acidity ) is important in sorption process of the organic base rather than suspension pH.

关键词： sorption organic base soil surface acidity

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A new real-time eye tracking based on nonlinear unscented Kalman filter for monitoring driver fatigue

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控制理论与应用（英文版） 2010年第2期8卷 181-188页

作者： Zutao ZHANG 1 , 2 , Jiashu ZHANG 2 (1.school of Mechanical engineering, southwest jiaotong university, {3. sichuan 61003., china 2.sichuan Key Lab of Signal and Information Processing, southwest jiaotong university, {3. sichuan 61003., china) school of Mechanical engineering Southwest Jiaotong University Chengdu Sichuan China sichuan Key Lab of Signal and Information Processing Southwest Jiaotong University Chengdu Sichuan China

A new scheme for driver fatigue detection is presented, which is based on the nonlinear unscented Kalman filter and eye tracking. Assuming a probability distribution than to approximate an arbitrary nonlinear function or transformation, eye nonlinear tracking can be achieved using an unscented transformation (UT), which adopts a set of deterministic sigma points to match the posterior probability density function of the eye movement. Driver fatigue can be detected using the percentage of eye closure (PERCLOS) framework in a realistic driving condition after the eye nonlinear tracking. This system was tested adequately in realistic driving environments with subjects of different genders, with/without glasses, in day/night driving, being commercial/noncommercial drivers, in continuous driving time, and under different road conditions. The last experimental results show that the proposed method not only improves the robustness for nonlinear eye tracking, but also can provide more accurate estimation than the traditional Kalman filter.

关键词： Eye tracking Unscented Kalman filter (UKF) Fatigue detection PERCLOS

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Experimental study of CT test on the failure of acrylate spray-applied waterproof layer in the groundwater environment

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science china(Technological sciences) 2010年第2期53卷 512-518页

作者： YANG QiXin, XU Peng & ZHENG ShangFeng 1 school of Civil engineering, southwest jiaotong university, {3. 61003., china school of Civil engineering Southwest Jiaotong University Chengdu China

In this study the computerized tomography (CT) was first used to quantitatively analyze the failure of acrylate spray-applied waterproof membrane in the groundwater environment. The results of the CT tests show that it is feasible to use the CT to quantitatively analyze the failure of the waterproof membrane and the CT method has the advantages of speediness and accuracy that can eliminate the fussy operation process in routine tests. The main conclusions summarized from the study are as follows. First, there are two combined-indexes that can be used to decide the failure of the spray-on waterproof layer: one is that the reduced percentage of the CT number of the spray-on waterproof layer is less than 40.0% and the other is that the variance of the CT number decreases first and then increases. Second, the applicability for the spray-on waterproof layer in the groundwater environment is the SO 24-concentration ≤ 1%, the Cl-concentration ≤ 7.5% and the pH value ≤ 12.0 of the groundwater, respectively.

关键词： spray-on waterproof layer scan CT number failure groundwater environment

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Centroid-based semi-fragile audio watermarking in hybrid domain

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science china(Information sciences) 2010年第3期53卷 619-633页

作者： WANG HongXia & FAN MingQuan school of Information science and Technology, southwest jiaotong university, {3. 61003., china school of Information science and Technology Southwest Jiaotong University Chengdu China

Many previous (semi-) fragile audio watermarking schemes adopt binary images as watermarks, which reduce the security of watermarking systems. On the other hand, the content-based or feature-based second generation digital watermarking has limited applicability, and its partial feature points may be damaged by watermarking operations and various common signal processing. To overcome these problems, in this paper, a novel centroid-based semi-fragile audio watermarking scheme in hybrid domain is proposed. The theoretical lower limit of signal to noise ratio (SNR) for objective evaluation of the imperceptibility of watermarked audio signal is deduced, and the watermark embedding capacity and the tamper detection ability are theoretically analyzed. In the proposed scheme, first, the centroid of each audio frame is computed, then Hash function is performed on the obtained centroid to get the watermark, after that, the audio sub-band which carries centroid of audio frame is performed with discrete wavelet transform (DWT) and discrete cosine transform (DCT), and finally the encrypted watermark bits are embedded into the hybrid domain. Theoretical analysis and experimental results show that the proposed scheme is inaudible and applicable to different types of audio signals. Furthermore, its ability of tamper detection and tolerance against common signal processing operations are excellent. Comparing with the existing schemes, the proposed scheme can effectively authenticate the veracity and integrity of audio content, and greatly expand the applicability of the content-based audio watermarking scheme.

关键词： semi-fragile audio watermarking centroid inaudibility tamper detection

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Frequency/time hopping sequence sets with optimal partial Hamming correlation properties

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science china(Information sciences) 2012年第10期55卷 2207-2215页

作者： NIU XianHua 1,2,PENG DaiYuan 1 & ZHOU ZhengChun 3.1 The Provincial Key Laboratory of Information Coding and Transmission,Institute of Mobile Communications,southwest jiaotong university,chengdu 61003.,china 2 The {3. of Mathematics and Computer engineering,Xihua university,chengdu 61003.,china 3.The College of Maths,southwest jiaotong university,chengdu 61003.,china The Provincial Key Laboratory of Information Coding and Transmission Institute of Mobile Communications Southwest Jiaotong University Chengdu China The school of Mathematics and Computer engineering Xihua University Chengdu China The College of Maths Southwest Jiaotong University Chengdu China

Frequency hopping/time hopping(FH/TH) sequences have found wide applications in various modern FH/TH spread spectrum communications,such as digital cellular mobile communication,short-range wireless communication,personal communication,and multi-user radar,sonar *** order to evaluate the goodness of FH/TH sequences design,the periodic Hamming correlation function is used as an important ***,the length of correlation window is shorter than the period of the chosen FH/TH sequence,so the study of the partial Hamming correlation of FH/TH sequence is particularly *** this paper,a new class of FH/TH sequence sets with good partial Hamming correlation properties is proposed and *** construction of new FH/TH sequence sets is based upon the generalized m-sequence and generalized Gordon-Mills-Welch sequence over a polynomial residue class *** is shown that new FH/TH sequence sets are optimal with respect to the partial Hamming correlation bound.

关键词： frequency hopping/time hopping(FH/TH) sequence partial Hamming correlation optimal FH/TH sequence set

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Studies on Barriers for Promotion of Clean Technology in SMEs of china

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Chinese Journal of Population,Resources and Environment 2005年第1期3卷 9-17页

作者： Peng Sizhen , Liu Yan , Shi Han 1 2 & Zhong Ping 3.1. The Administrative Centre for china’s Agenda21, Beijing 100089, china 2. Yale school of Forestry & {3. Studies, New Haven CT 06511, the U.S.A. 3. Department of {3. science and engineering, sichuan university, chengdu sichuan 610065, china The Administrative Centre for china’s Agenda21 Beijing 100089 China Yale school of Forestry and environmental Studies New Haven CT 06511 United States Department of environmental science and engineering Sichuan University Chengdu Sichuan 610065 China

After more than 10 years efforts on awareness raising and promotion, the concept of cleaner production (CP) has been adopting as a strategic approach to balance economic benefits and environmental protection for china’s industries. However, it is also found that clean technology is difficult to be adopted and implemented in Chinese Small and Medium-sized Enterprises (SMEs) because of certain barriers. This paper investigates these barriers among three stakeholders--governments, enterprises and experts. The Analytic Hierarchy Process (AHP) was employed to prioritize the relative importance of the twenty fine-selected barriers, which were classified into four barrier categories. The findings reveal that the exterior barriers of policy and financial barriers should be stressed rather than the inner barriers of technical and managerial barriers, although they are also very important. Absence of incentives on economic policies, lax enforcement of environmental regulations and high initial capital cost were the most important barriers to adoption of Clean Technologies (CT) in china.

关键词： Cleaner Production Clean Technologies Barrier Study Small and Medium Enterprises

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Semantic theory of finite lattice-valued propositional logic

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science china(Information sciences) 2010年第10期53卷 2022-2031页

作者： PAN XiaoDong 1,2 & XU Yang 2 1 school of Maths, southwest jiaotong university, chengdu 61003., {3. 2 Intelligent Control Development Center, southwest jiaotong university, chengdu 61003., {3. school of Maths Southwest Jiaotong University Chengdu China Intelligent Control Development Center Southwest Jiaotong University Chengdu China

Based on the methodology of Pavelka’s fuzzy propositional logic, in this paper, by combining L-fuzzy set and classical two-value propositional logic theory, a kind of graded semantic theory in lattice-valued propositional logic based on finite lattice implication algebras is established. The notions of L-tautology and L-contradiction are introduced, and several theorems about the relations among different kinds of L-tautologies are given. From the viewpoint of uncertainty reasoning, the notion of satisfiability with certain level for a set of formulas is also defined. On this basis, the semantic consequence operation concerning a set of formulas is proposed, and the properties of semantic consequence operation and the consistency of fuzzy information are discussed.

关键词： lattice-valued propositional logic semantic theory L-tautology consistency lattice implication algebra

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Preparation of micro-patterned surfaces of Si-N-O films and their influence on adhesion behavior of endothelial cells

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science china(Technological sciences) 2010年第1期53卷 257-263页

作者： ZHENG Nan,YANG Ping,WANG QiYi,YANG ZhongHai & HUANG Nan Key Laboratory of Advanced Technology for Materials of Education Ministry,Key Laboratory of Artificial Organ Surface engineering of sichuan,school of Materials {3. and engineering,southwest jiaotong university,chengdu 61003.,china Key Laboratory of Advanced Technology for Materials of Education Ministry Key Laboratory of Artificial Organ Surface Engineering of Sichuan School of Materials Science and Engineering Southwest Jiaotong University Chengdu China

Microgrooves were prepared on Si(100) surface by photolithography and wet ***,Si-N-O films were deposited on the microgrooves by unbalanced magnetron sputtering(UBMS) and micro-patterned surfaces of Si-N-O films were *** size of the micropatterns was measured by surface *** chemical composition of Si-N-O films were characterized by X-ray photoelectron spectrometry(XPS) and the wettability of the micropatterned surfaces was evaluated by contact angle *** behavior of endothelial cells adhered on the micro-patterned surfaces,including cells adhesion,proliferation and orientation,was evaluated by cell culture test and Alamar blue *** results showed that the amount and activity of endothelial cells on micro-patterned samples were higher than those on flat *** one day's incubation,the cells were well guided along the *** days later,most of the cells grew across the grooves and contacted each *** activity was also much higher than that on flat *** was suggested that the adhesion and proliferation of endothelial cells could be effectively enhanced by micropattern method.

关键词： micropatterns Si-N-O film endothelial cell unbalanced magnetron sputtering

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