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Chinese Chemical Letters 2006年第3期17卷 361-364页

作者： Shao hua shi Li Jian LIU Department of Polymer Science College of Chemistry and Molecular Science Wuhan University Key Laboratory of Biomedical Polymers （Wuhan University） Ministry of Education Wuhan 430072 R ＆ D Center Nhwa Pharmaceutical Group Xuzhou 221007

Poly（N-isopropylacrylamide）-based hydrogel was prepared under microwave irradiation The hydrogel thus prepared, comparing with that prepared by thermal heating method, exhibits faster swelling and shrinking kinetics. The improved responsive properties are due to the more heterogeneous and porous networks formed under microwave irradiation.

关键词： Microwave poly(N-isopropylacrylamide) hydrogel fast response.

Estimation of the resident’s additional dose in bone-coal mining areas of the five provinces

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Nuclear Science and Techniques 2005年第4期16卷 249-252页

作者： JIANG Shan ZHANG Liang YE Ji-da KONG Ling-Li LI Ying shi Jin-hua WU Zong-Mei Environmental Radiation Surveillance Station of Anhui Province Hefei 230061 Environmental Monitoring Center Station of Hunan Province Changsha 410004 Environmental Radiation Monitoring Station of Zhejiang Province Hangzhou 310012 Wuhan Academy of Environmental Science Wuhan 430015 Environmental Monitoring Center Station of Jiangxi Province Nanchang 330029

This paper introduces the resident’s additional dose in bone-coal mining areas. The increase of the annual additional effective doses accepted by the residents living in the carbide-brick houses, the staffs working in the car-bide-brick houses and the miners working in the bone-coal mining areas of Hubei, Hunan, Jiangxi, Zhejiang and An-hui Provinces is caused by the rising of environmental radioactive level. The investigation of natural background ra-diation in the bone-coal mining areas indicated that both mining and utilizing bone-coal cause the rise of environ-mental radioactive level. The ranges of the annual additional effective dose accepted by the residents, staffs and min-ers is 1.9—6.8 mSv, 0.5—2.0 mSv and 8.2—71 mSv, and with an average of 3.8 mSv, 1 mSv and 40 mSv, respec-tively. The annual additional effective doses accepted by part residents and staffs exceed the dose limit of 1 mSv for public exposure, and part miners exceed the dose limit of 20 mSv for occupational exposure. And the contribution of dose caused by inhaled radon to the total additional effective dose is over 76%.

关键词：骨煤放射性等级碳化物环境影响

Properties of Unsymmetrical Parabolic Confinement Potential Quantum Dot Qubit

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Communications in Theoretical Physics 2008年第12期50卷 1287-1289页

作者： CHEN shi-hua XIAO Jing-Lin College of Sciences Huzhou Vocational Technology College Huzhou 313000 China Department of Physics Inner Mongolia University for Nationalities Tongliao 028043 China

On the condition of electric-LO phonon strong coupling in unsymmetrical parabolic confinement potential quantum dot （QD）, we obtain the eigenenergies of the ground state and the first-excited state, the eigenfunctions of the ground state, and the first-excited state by using variational method of Pekar type. This system in QD may be employed as a two-level quantum system-qubit. When the electron is in the superposition state of the ground state and the first-excited state, we obtain the time evolution of the electron density. The relations both the probability density of electron and the period of oscillation with the electron-LO-phonon coupling strength, the confinement strengths in the xy-plane and the z-direction are discussed.

关键词： quantum dot qubit binding energy

EMERGENCE ANGLE OF FLOW OVER AN AERATOR

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Journal of Hydrodynamics 2007年第5期19卷 601-606页

作者： WU Jian-hua RUAN shi-ping College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China

Aerator is an important device for release works of hydraulic structures with high-speed flow in order to protect them from cavitation damage. This kind of protecting effect is related closely to cavity length below the aerator, while the cavity length is dominated by the emergence angle over the aerator. Therefore it is crucial to determine this angle accurately. In the present paper the affecting intensities of flow depth and the fluctuating velocity on this angle were analyzed through two introduced parameters. Furthermore, the improved expressions of emergence angle estimation, for both ramp-type and step-type aerators, were presented by means of 68 sets of experimental data from 6 projects based on error theory. The results showed that the present method has higher accuracy than the previously reported methods.

关键词： aerator cavitation damage cavity length,emergence angle flow depth fluctuating velocity

Investigation on natural radionucildes levels in multiple media in bone-coal mine areas of five provinces

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Nuclear Science and Techniques 2005年第4期16卷 244-248页

作者： KONG Ling-Li ZHANG Liang LI Ying YE Ji-da JIANG Shan shi Jin-hua WU Zong-Mei Wuhan Academy of Environmental Science Wuhan 430015 Environmental Monitoring Center Station of Hunan Province Changsha 410004 Environmtental Monitoring Center Station of Jiangxi Province Nanchang 330029 Enviromnental Radiation Monitoring Station of Zhejiang Province Han gzhou 310012 Environmental Radiation Surveillance Station of Anhui Province Hefei 230061

This paper reports methods and results of the investigation of natural radionuclides levels in multiple me-dia in the bone-coal mine areas in Hubei, Hunan, Jiangxi, Zhejiang, and Anhui Provinces. In the studied bone-coal mine areas, the specific activities of 238U and 226Ra in the soil samples were 0.37 and 0.24 Bq/g, respectively; the spe-cific activities of 226Ra in the samples of bone-coal, bone-coal cinder and bone-coal cinder brick (BCCB) were 1.3, 1.4 and 0.9 Bq/g, respectively. In the water samples collected from the bone-coal mine areas, the average concentra-tions of natural uranium and 226Ra were 33μg/L and 58 mBq/L, respectively, while in the water samples collected from outside the bone-coal mine areas, they were 3.4μg/L and 45 mBq/L, respectively. In addition, the specific activi-ties of 238U and 226Ra in air aerosol samples from the bone-coal mine areas were 0.6 and 0.5 mBq/m3, respectively.

关键词：骨煤放射性等级 BCCB 环境影响

MLH1 promoter germline-methylation in selected probands of Chinese hereditary non-polyposis colorectal cancer families

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World Journal of Gastroenterology 2008年第48期14卷 7329-7334页

作者： Heng-hua Zhou shi-Yan Yan Xiao-Yan Zhou Xiang Du Tai-Ming Zhang Xu Cai Yong-Ming Lu San-Jun Cai da-Ren shi Department of Pathology Cancer Hospital/Institute Fudan University Department of Oncology Shanghai Medical College Fudan University Shanghai 209032 China Department of Gastroenterology Xinhua Hospital Shanghai Jiaotong University School of Medicine Shanghai 200092 China Department of Abdominal Surgery Cancer Hospital/Institute Fudan University Shanghai 200032 China

AIM： To detect the MLH1 gene promoter germline- methylation in probands of Chinese hereditary non- polyposis colorectal cancer （HNPCC）, and to evaluate the role of methylation in MLH1 gene promoter and molecular genetics in screening for ***： The promoter germline methylation of MLH1 gene was detected by methylation-specific PCR （MSP） in 18 probands from unrelated HNPCC families with high microsatellite-instability （MSI-H） phenotype but without germline mutations in MSH2, MLH1 and MSH6 genes. At the same time, 6 kindreds were col- lected with microsatellite-stability （MSS） phenotype but without germline mutations in MSH2, MIH1 and MSH6 genes as controls. The results of MSP were confirmed by clone sequencing. To ensure the reliability of the results, family H65 with nonsense germline mutation at c.2228C 〉 A in MSH2 gene was used as the negative control and the cell line sw48 was used as the known positive control along with water as the blank control. Immunochemical staining of MIH1 protein was performed with Envision two-step method in those patients with aberrant methylation to judge whether the status of MLH1 gene methylation affects the expression of MLH1 ***： Five probands with MIH1 gene promoter methylation were detected in 18 Chinese HNPCC families with MSI-H phenotype but without germline mutations in MSH2, MLH1 and MSH6 genes. Two of the five probands from families H10 and H29 displayed exhaustive-methylation, fulfilling the Japanese criteria （JC） and the Amsterdam criteria （AC）, respectively. The other 3 probands presented part-methylation fulfilling the AC. Of the 13 probands with unmethylation phenotype, 8 fulfilled the JC and the Bethesda guidelines （BG）, 5 fulfilled the AC. The rate of aberrant methylation in MLH1 gene in the AC group （22.2%, 4/18） was higher than that in the JC/BG groups （5.6%, 1/18） in all HNPCC families with MSI-H phenotype but without germline mutations in PISH2, PIIH1 and MSH6 genes. However, no proband with m

关键词： Hereditary non-polyposis colorectal cancer MLH1 Methylation Germline Methylation-specific PCR Microsatellite phenotype

17-Dehydroxyholothurin A, a New Sulfated Triterpene Glycoside from Sea Cucumber Holothuna impatiens

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Chinese Chemical Letters 2006年第11期17卷 1454-1456页

作者： Peng SUN Yang hua YI Ling LI Min GUI Hai Feng TANG da Zhi ZHANG shi Long ZHANG Research Center for Marine Drugs Pharmacy School Second Military Medical University Shanghai 200433 Division of Antitumor Pharmacology State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 201203 Department of Pharmacy Xijing Hospital 4th Military Medical University Xi＇an 710032 Departrnent of Organic Chemistry Pharmacy School Second Military Medical University Shanghai 200433

Abstract： A new sulfated triterpene glycoside named as 17-dehydroxyholothurin A 1 was isolated from the sea cucumber Holothuria impatiens. Its structure was elucidated on the basis of spectroscopic data （2D NMR and MS） and chemical evidence. Compound 1 showed cytotoxic activity against cancer cell lines MKN-28, MFC-7, KB, HL-60 and Hep G2 with IC50 values of 1.98, 4.53, 2.01, 4.69 and 2.80 ×10^-6 tool/L, respectively.

关键词： Sea cucumber Holothuria impatiens 17-dehydroxyholothurin A triterpene glycoside.

Application of observed strain steps to the study of remote earthquake stress triggering

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Acta Seismologica Sinica(English Edition) 2004年第5期17卷 534-541页

作者： QIU Ze-hua(邱泽华) shi Yao-lin(石耀霖) Institute of Crustal Dynamics China Earthquake AdministrationBeijing100085China Graduate School of Chinese Academy of SciencesBeijing100039China

A study of the Kunlunshan earthquake of MS = 8.1 based on observed coseismic strain steps from the borehole strain monitoring network over China has been carried out with some interesting results. Firstly, many recordings disagree with theoretic calculation using static dislocation model. Secondly, abnormally large strain steps are ob-served at quite a few stations in the tectonically active east-northern China, while in the relatively inactive east-southern China no obvious steps are recorded. It is inferred that seismic stress triggering may significantly affect remote seismic strain field. In other words, whether remote faulting be seismically triggered or not may de-termine the pattern of local seismic strain changes. Further comparison study results of March 11, 1999 Zhangbei earthquake and November 1, 1999 datong earthquake show that the specific pattern of seismic zones has obvious influence on seismic strain changes in the region. This supports the idea that observed abnormal strain steps might be produced by coseismicly stress-triggered local faulting.

关键词： stress triggering strain observation seismic stress step

Remote Preparation of Multipartite Equatorial Entangled States in High Dimensions with Three Parties

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Communications in Theoretical Physics 2009年第4期51卷 641-647页

作者： HOU Kui WANG Jing shi Shou-hua School of Physics ＆ Material Science Anhui University Hefei 230039 China

A scheme for probabilistic remotely preparing N-particle d-dimensional equatorial entangled states via entangled swapping with three parties is presented. The quantum channel is composed of N - 1 pairs of bipartite d-dimensional non-maximally entangled states and a tripartite d-dimension non-maximally entangled state. It is shown that the sender can help either of the two receivers to remotely prepare the original state, and the N-particle projective measurement and the generalized Hadamard transformation are needed in this scheme. The total success probability and classical communication cost are calculated.

关键词： remoter state preparation d-dimensional multiparticle equatorial entangled states projective measurement classical communication cost

Nonlocal Symmetries and Conservation Laws of Nonlocal Camassa-Holm Type Equations

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Acta Mathematicae Applicatae Sinica 2015年第4期31卷 909-920页

作者： Zhen-hua shi Jing KANG Lu YAN Department of Mathematics Northwest University Center for Nonlinear Studies Northwest University Xingzhi College Xi'an University of Finance and Economics

The two-component μ-Camassa-Holm equation, the μ-Camassa-Holm equation and the modified μ- Camassa-Holm equation are three nonlocal integrable models. In this paper, it is shown that the two-component μ-Camassa-Holm equation and the μ-Camassa-Holm equation with a linear dispersion admit a kind of nonlocal symmetries, and the modified μ-Camassa-Holm equation does not have such kind of nonlocal symmetry. An number of conservation laws to the modified μ-Camassa-Holm equation and μ-Camassa-Holm equation are obtained.

关键词： Nonlocal symmetry conservation law the two-component μ-Camassa-Holm equation the modi-fied μ-Camassa-Holm equation the μ-Camassa-Holm equation