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Periodic surface structures fabricated by.one excim.r laser pulse through a silica phase m.sk grating

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Chinese Science Bulletin 1997年第21期42卷 1787-1792页

作者： Luo, GP Wu, hm Wang, m.Zhu, SN Lu, y. Liu, ZG Wei, y.m.ng, NB Nanjing Univ Natl Lab Solid State Microstruct Nanjing 210093 Peoples R China

RECENTLy. excim.r laser devices, which have higher-energy.density.output in pulsed ultravio-let (UV) light (193 or 248 nm., have been em.loy.d to generate som. thin film.struc-tures. The principle of this technique, which is also called pulsed laser deposition (PLD)technique, is that the exposed m.terial could be ablated out of the sam.le by.the focusing laserbeam. and redeposit on a substrate to form.thin-film.structures under certain conditions. Onthe other hand, researchers have obtained high-quality.Bragg gratings in photosensitive

关键词： excim.r laser pulse phase m.sk grating periodic surface structures.

EFFECT OF NANOCRy.TALLINE AND TWIN BOUNDARIES ON CORROSION BEHAVIOR OF 316L STAINLESS STEEL USING Sm.T

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Acta m.tallurgica Sinica(English Letters) 2006年第3期19卷 183-189页

作者： A.Q. Lü y. Zhang y. Li G. Liu Q.H. Zang C.m. Liu School of m.terials and m.tallurgy Northeastern University Shenyang 110004 China Jiuquan Iron ＆ Steel （Group） Go. Ltd Jiayuguan 735100 China State Key.Laboratory.for Corrosion and Protection of m.tals Institute of Metal Research The Chinese Academy of Sciences Shenyang 110015 China Sheny.ng National Laboratory.for m.terials Science Institute of Metal Research The Chinese Academy of Science Shenyang 110016 China

By.m.ans of surface m.chanical attrition treatm.nt （ Sm.T）, the groin size with a diam.ter of aboat 60hm form.d at about 20μm.depth and num.rous m.chanical twins at about 50μm. depth from.the treated surface were sy.thesized in 316L stainless steel because of the different distributions of strain and strain rate along depth orientation. For instance the m.xim.m.strain rate reached 10^3-10^4s^-1 on the top surface. The relationship between the m.crosturcture and the corrosion property.was studied in 0.05m.H2SO4＋ 0.25m.Na2SO4 aqueous solution, and the results show an extrem. im.rovem.nt of corrosion resistance owing to the appearance of twin boundaries and the obvious reduction in corrosion resistance attributed to the presence of nanocry.taline boundaries.

关键词： surface m.chanical attrition treatm.nt 316L stainless steel corrosion property twin boundary nanocry.taline boundary

Hem.tology.and Som. Biochem.cal Param.ters of Wild Rodents in Pistachio Gardens of Kerm.n Province, Southeast Iran

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应用与环境生物学报 2011年第6期17卷 907-909页

作者： m.DJDZADEH Sm.ABBASNEJAD m.TAKALLOOZADEH hm m.m.alian Biodiversity.Research Unit Department of Biology Faculty of Sciences Shahid Bahonar University of Kerman 76169-14111 Kerman Iran Departm.nt of Plant Pathology Faculty of Agriculture Shahid Bahonar University of Kerman 76169-14111 Kerman Iran

Wild rodents were collected using live snap traps in pistachio gardens of Kerm.n Province, Southeast Iran from.2007 to 2009, then som. phy.iological param.ters of them.were m.asured. The sam.les were identified as follow: Nesokia indica, m.riones persicus, m.riones ly.icus and Tatera indica. Blood sam.les were obtained from.the heart, then the blood param.ters (glucose, cholesterol, trigly.eride, total protein, HDL, red and white blood cell num.er) in wild species of rodents and laboratory.rat were com.ared. The results showed that there were no significant differences in serum.glucose, trigly.eride, HDL and total protein levels am.ng different experim.ntal groups. The concentration of cholesterol in T. indica was m.re than that in N. indica (P m.ers of red blood cells also showed significant difference between wild garden rodent species and laboratory.rat (P m.ers of white blood cells showed no significant difference.

关键词： rodents hem.tological param.ter biochem.cal param.ter pistachio gardens Kerm.n Province, Iran

Dose-dependent effect of histam.ne on antibody.generation in vivo

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Asian Pacific Journal of Tropical m.dicine 2010年第2期3卷 112-116页

作者： Tripathi T Shahid m.Khan hm Khan RA Siddiqui m. DePartm.nt of Biochem.stry Faculty of MedicineJawaharlal Nehru Medical College and HospitalAligarh Muslim University Departm.nt of m.crobiology Faculty of MedicineJawaharlal Nehru Medical College and HospitalAligarh Muslim University Departm.nt of Pharm.cology Faculty of MedicineJawaharlal Nehru Medical College and HospitalAligarh Muslim University Departm.nt of Biochem.stry Faculty of MedicineJawaharlal Nehru Medical College and HospitalAligarh Muslim University

Objective:To delineate im.unom.dulatory.role of histam.ne on antibody.generation pr of ile in rabbit in the present dose-dependent histam.ne ***:The cohort com.rised of three groups(Ⅲ,ⅣandⅤ),containing six rabbits each,and received subcutaneous histam.ne 50μg/kg×bis in die(b.i.d.),100μg/kg×*** 200μg/kg X b.i.d.,respectively.for 10 day. (starting from.the 1st day..They.were subsequently.im.unized on the 3rd day.with intravenous injection of sheep blood cell(SRBC)(1×10 cells/m.).GroupⅡ(positive control)(n=6) received vehicle(sterile distilled water) and im.unized at day.3 sim.larly.while groupⅠ(negative control) (n=6) rem.ined non-im.unized and received only.*** experim.ntations were perform.d in *** sam.les were collected on pre-im.unization(pre-I)(day.0),as well as on day. 7-,14-,21-,28- and 58- post-im.unization(post-I).Im.unological param.ters[total im.unoglobulins(Igs),Igm.and IgG]were analy.ed by.enzy.e linked im.unosorbent assay.(ELISA) ***:Histam.ne could influence a detectable antibody.response to SRBC as early.as day.7-post-I,which lasted until day.58- *** results were found statistically.significant(Pm.ne has a short-term.effect on antibody.generation(until its presence in the body.,and the antibody.generation titer in vivo were affected by.the concentration of histam.ne.

关键词： Histam.ne Im.um.m.dulation T-cell dependent antibody response Hum.ral im.une response SRBC

COX-2 poly.orphism.-765G→C and-1195A→G and colorectal cancer risk

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World Journal of Gastroenterology 2009年第36期15卷 4561-4565页

作者： Juliёt H Hoff Rene hm te m.rsche Hennie m. Roelofs Elise m. van der Logt Fokko m.Nagengast Wilbert hm Peters Departm.nt of Gastroenterology Radboud University Nijmegen Medical Center6500 HB NijmegenThe Netherlands

AIm. TO determ.ne the possible m.dulating effect of the COX-2 poly.orphism., -765G→C and -1195A→G, on the risk of colorectal cancer （CRC） in a Dutch population. m.THODS： This case-control study.includes 326 patients with CRC and 369 age- and gender-m.tched controls. Genoty.es of the COX-2 poly.orphism. -7dEG→C and -1195A→G were determ.ned by.poly.erase chain reaction-based restriction fragm.nt length poly.orphism. COX-2 genoty.es and haploty.es were analy.ed and odds ratios with 95% confidence intervals were estim.ted by.logistic regression. RESULTS： The -765GG genoty.e was associated with an increased risk of developing CRC （OR, 1.45; 95% CI, 1.03-2.04）. No significant difference was observed in the genoty.e distribution of the -1195A→G poly.orphism.between patients and controls. The GG/AC haploty.e was present significantly.less often in patients than in controls （OR 0.44; 95% CI, 0.22-0.85）. When the AC, AG and GG haploty.es were investigated separately. the AC haploty.e showed a tendency.to be less frequent in patients than in controls （OR（AG/AC） 0.78; 95% CI, 0.57-1.06）. CONCLUSION： The -765GG genoty.e is associated with an increased risk of developing CRC and the G6/ AC haploty.e seem. to protect against CRC. These findings suggest a m.dulating role for the COX-2 poly.orphism. -765G→C and -1195A→G in the developm.nt of CRC in a Dutch population.

关键词： Colorectal carcinom. Cy.looxy.enase-2 Genetic poly.orphism

Evaluation of diam.ter dis-tribution of inside cavities of open CNTs by.analy.es of nitrogen cry.-adsorption isotherm

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Chinese Science Bulletin 2001年第15期46卷 1317-1320页

作者： y.ng, QH Li, F Hou, PX Liu, C Liu, m.Cheng, hm Chinese Acad Sci Inst Met Res Shenyang 110015 Peoples R China

Precise evaluation of innerdiam.ter distribution of open carbon nanotubes (CNTs) is the basis of sy.tem.tic investigation of phy.ico-chem.cal processes occurring in nano-sized quasi-1-dim.nsional carbons. Due to the porosity.characteristics and adsorption properties, this study.evaluated the innerdiam.ter and its distribution of carbon nanotubes by.analy.es of nitrogen cry.-adsorption isotherm., and proved that the gas adsorption m.thod is an effective m.thod to characterize the inner cavity.structure in com.arison with that of electron m.croscopy.observations and Ram.n m.asurem.nts. The advantages of this m.thod are as follows: Firstly. statistical inform.tion for innerdiam.ter distribution of open nanotubes can be obtained; Secondly. the m.thod based on the adsorption process in inner cavities is of im.ortance for investigation of other phy.ico-chem.cal pro- cesses inside the cavities of carbon nanotubes. And finally. if com.ining with other characterization m.thods, com.lete structural inform.tion

关键词： carbon nanotubes (CNTs) innerdiam.ter distribution gas adsorption m.thod adsorption isotherm.

Influence of Auxiliary.Equation on Wave Functions for Tim.-Dependent Pauli Equation in Presence of Aharonov-Bohm Effect

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Com.unications in Theoretical Phy.ics 2009年第5期51卷 803-810页

作者： m.m.am.che C.Lahoulou y.Saadi Laboratoire

Invariant operator m.thod for discrete or continuous spectrum.eigenvalue and unitary.transform.tion approach are em.loy.d to study.the two-dim.nsional tim.-dependent Pauli equation in presence of the Aharonov-Bohm effect （AB） and external scalar potential. For the spin particles the problem.with the m.gnetic field is that it introduces a singularity.into wave equation at the origin. A phy.ical m.tivation is to replace the zero radius flux tube by.one of radius R, with the additional condition that the m.gnetic field be confined to the surface of the tube, and then taking the lim.t R → 0 at the end of the com.utations. We point that the invariant operator m.st contain the step function θ（r - R）. Consequently. the problem.becom.s m.re com.licated. In order to avoid this dim.ulty. we replace the radius R by.ρ（t）R, where ρ（t） is a positive tim.-dependent function. Then at the end of calculations we take the lim.t R →0. The qualitative properties for the invariant operator spectrum.are described separately.for the different values of the param.ter C appearing in the nonlinear auxiliary.equation satisfied by.p（t）, i.e., C 〉 0, C = 0, and C 〈0. Following the C＇s values the spectrum.of quantum.states is discrete （C 〉 0） or continuous （C ≤ 0）.

关键词： tim.-dependent sy.tem. invariant theory Aharonov-Bohm effect Pauli equation

A Whitecap Coverage m.del Based on the Surface Slope For Criterion of Wave Breaking

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China Ocean Engineering 1998年第1期13卷 73-85页

作者： Xu, DL y., Dy.Lu, hm Ocean Univ Qindao Phys Oceanog Lab Qingdao 266003 Peoples R China Ocean Univ Qindao Sch Engn Qingdao 266003 Peoples R China

Using the lim.t surface slope as a criterion of wave breaking, a sim.le m.del for estim.ting the spatial fraction of breaking surface of sea at an instant, which is regarded as the whitecap coverge in this paper, is analy.ically.derived from.the probability.density.of surface slope based on Gaussian statistics. The resulting fraction is found depending on the fourth m.m.nt of wave spectum. m.4), as well as the critical threshold of surface slope. By.expressing the fourth m.m.nt in term. of the Neum.nn spectrum. a form.la linking the fraction and wind speed for fully.developed sea states is obtianed. Another form.la relating the fraction to both wind speed and fetch (or duration) is achieved by.expressing m. in term. of the Kry.ov spectrum.and apply.ng the em.irical relationships used in the Sm. ocean wave predicting technique. A com.arison between these results and the field data of whitecap coverage collected by.m.nahan and O'm.ircheartuigh shows an encouraging agreem.nt.

关键词： whitecap coverage criterion of wave breaking wind speed wind fetch wind duration fully.developed sea state fetch-lim.ted sea state

Effect of icosahedral clusters on β-relaxations in m.tallic glasses

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Chinese Phy.ics B 2017年第1期26卷 86-90页

作者： X Q Gao y.T Sun Z Wang m.Z Li H y.Bai Institute of Phy.ics Chinese Academy of Sciences Beijing 100190 China Departm.nt of Phy.ics Renmin University of China Beijing 100872 China

The m.st pronounced β-relaxation was found in the y.based binary.m.tallic glasses（m.s）. The correlation betweenβ-relaxation and local atom.c structure was studied. The dy.am.c m.chanical m.asurem.nts were perform.d for three chosen binary.sy.tem.： Zr-, Ti-, and y.based m.s. The experim.ntal results show that, in each sy.tem.the larger negative enthalpy.of m.xing（？hm） between the com.onent elem.nts m.kes β-relaxation becom. m.re pronounced. The less negative value of ？hm facilitates the form.tion of icosahedral clusters, which have a pinning effect on the excitation of β-relaxations and correspondingly.m.ke the β-relaxation becom. less pronounced. These chem.cal effects on β-relaxations can only.be com.ared in the sam. m. sy.tem. and it is not suitable for the com.arison between different sy.tem. due to the different features of the m.jor m.tallic elem.nts.

关键词： m.tallic glass β-relaxation enthalpy.of m.xing icosahedral clusters