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淡水蚌类繁殖生物学研究进展

水产学报 2005年第4期29卷 560-564页

作者：张根芳方爱萍李家乐金华职业技术学院金华市威旺养殖新技术有限公司上海水产大学生命科学与技术学院浙江金华3.1007 浙江金华3.1017 上海2.001

Unionidae, one major freshwater family of a Bivalvia with many species, is distributed very extensively. Some of them have high economic value. Due to the deterioration of world environment, its resource is declining continually. The development of eygote of freshwater mussel (Unionidae) undergoes in the gill. When it grows to the stage of glochidia,it must live a parasitic life on fish. Because of this breeding feature, the artificial insemination technology has had no breaking-through in long time. With the rapid development of fresh water pearl culture, it is impending for us to develop new breeding technology, select seeds with good productive traits, protect the resources quality and develop new cultivate technology. This paper synthesized the research achievement for the feature of mussel breeding, the gamete growth and formation, reproduction season and embryonic development, the glochidium formation, structure and abnormal breed, and so on. Finally the future research prospects were described. This review could serve as the reference {3. for future studying on the freshwater mussel reproduction biology and the artificial propagation technology.

关键词：蚌科(瓣鳃纲) 繁殖生物学研究进展

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稀土对BNbRE钢轨综合性能的影响

中国稀土学报 2003年第4期21卷 468-473页

作者：李春龙智建国姜茂发刘浏包头钢铁(集团)公司内蒙古包头014010 东北大学材料科学与冶金学院辽宁沈阳110006 钢铁研究总院北京100044

论述了包钢BNbRE钢轨的开发、性能指标和稀土在钢轨中的作用。采用钢中加入稀土、合金元素铌及适当调整C,Si,Mn可使钢轨性能指标达到σb≥980MPa,σ5≥8%,同时具有优良的耐磨性能,接触疲劳性能和实物疲劳性能。实验结果表明,BNbRE轨(BNb... 详细信息

论述了包钢BNbRE钢轨的开发、性能指标和稀土在钢轨中的作用。采用钢中加入稀土、合金元素铌及适当调整C,Si,Mn可使钢轨性能指标达到σb≥980MPa,σ5≥8%,同时具有优良的耐磨性能,接触疲劳性能和实物疲劳性能。实验结果表明,BNbRE轨(BNbRE)中稀土具有净化钢液、变质夹杂和微合金化作用。炼钢工艺改进后钢水质量提高,虽然稀土含量相应降低,取得了优良的稀土钢轨综合性能。

关键词：金属材料钢轨稀土

Identification of over-expressed genes in human renal cell carcinoma by combining suppression subtractive hybridi-zation and cDNA library array

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Science china(Life Sciences) 2004年第2期47卷 148-157页

作者： AI Junkui1, ZHANG Zhiwen2. XIN Dianqi1, ZHU Hongjian1, YAN Quanjian3. XIN Zhongcheng1, NA Yanqun1 & GUO Yinglu1 1. Institute of Urology, Peking University & Department of Urology, First Hospital, Peking University, Beijing 10003.,{2. 2. Department of Physiology, Peking University Health Science Center, Beijing 100083.{2. 3. Department of Urology, Xijing Hospital, the 4.h Military Medical University, Xi抋n 71003.,{2. 1. Institute of Urology Peking University & Department of Urology First Hospital Peking University 100034 Beijing China 2. Department of Physiology Peking University Health Science Center 100083 Beijing China 3. Department of Urology Xijing Hospital The 4th Military Medical University 710033 Xi’an China

To isolate the over-expressed genes in human renal cell carcinoma (RCC) and analyze its molecular basis of carcinogenesis, we used the mRNA from human RCC tissues as tester and that from the matched normal kidney tissues as driver to construct the suppression subtractive hybridization library. 3.9 of the subtracted clones were arrayed onto a nylon mem-brane and the over-expressed genes were then screened by hybridizing the filter with radioac-tively labeled cDNA from RCC and matched normal kidney tissues. 67 clones over-expressed in RCC by a factor of 6 or more were sequenced and its identities were analyzed in GenBank da-tabase. 4.clones were previously unknown fragments and 2.clones represent KIAA genes. The rest clones were the known genes and some of them were RCC-related, including vascular en-dothelial growth factor, vimentin and tissue factor. Most of the known genes were the RCC-related genes previously unknown, including zinc ribbon domain-containing 1 protein (ZNRD1), pituitary tumor transforming gene1 (PTTG1). Northern blot and semi-quantitative RT-PCR confirmed that the mRNA levels of the 3.novel fragments and 1 KIAA and 3.known genes were significantly higher in RCC than in the matched normal kidney tissues. Immunohis-tochemical and Western blot analysis for PTTG1 and ZNRD1 revealed increased protein level in RCC. The over-expressed genes in RCC are the potential molecular targets for diagnosis and therapy and it is very important to understand the molecular mechanism of RCC through the profile of over-expressed genes.

关键词： suppression subtractive hybridization (SSH), cDNA microarray, renal cell carcinoma (RCC), gene, differential expression.

On the major proposals for carbon emission reduction and some related issues

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Science china Earth Sciences 2010年第12期53卷 159-172页

作者： DING ZhongLi1,DUAN XiaoNan2.GE QuanSheng3.& ZHANG ZhiQiang4.1 CAS Key Lab of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 10002.,china 2.The General Office of Chinese Academy of Sciences,Beijing 100864.china 3.Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,china 4.The Lanzhou Branch of the National Science Library,Scientific Information Center for Resources and Environment of CAS,Lanzhou 73.000,china 1. CAS Key Lab of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China2. The General Office of Chinese Academy of Sciences Beijing 100864 China3. Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China4. The Lanzhou Branch of the National Science Library Scientific Information Center for Resources and Environment of CAS Lanzhou 730000 China

We evaluated and ran simulations for seven proposals for the reduction of global co2.emissions (e.g.,those of the Intergovernmental Panel on Climate Change (IPCC),United Nations development Program,and Organization for Economic cooperation and development).All the proposals ignored the fact that the cumulative co2.emissions per capita for developed countries were 7.54.times those for developing countries in the historical period of *** proposals further deliberately allocate 2.06-2.50 emission quotas to developed countries that are 2.{2.6.7 times those to developing *** will seriously violate the development rights of developing *** paper clearly states that proposals such as that of the IPCC are not suitable references for future international climate change negotiations as they violate the fundamentals of fairness and equity in international relationships and the UNFCCC principle of "common but differentiated responsibilities".comparing estimates of emissions in{{2. in the scenario of rapid development with low-co2.emission technology in the period 2.06-2.50 with estimates for other countries and groups,we find that{{2. can logically and morally argue for equivalent emission rights even in the case of the strict co2.concentration target of 4.0-4.0 ppmv.

关键词： co2 emission reduction cumulative co2 emission per capita emission rights

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紫外光接枝法制备聚丙烯荷电膜及其性能的研究

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天津工业大学学报 2005年第5期24卷 52-56页

作者：吕春英葛启刘燕军天津工业大学中空纤维膜材料与膜过程教育部重点实验室

以聚丙烯中空纤维膜(PP膜)为基体,以二苯甲酮(BP)为光敏剂,采用紫外光辐照方法,接枝了丙烯酸(AAc)单体,制得了荷负电膜。结果表明,光敏剂(BP)和AAc单体质量分数分别为4.～6%和15%左右、光照时间为2.～3.min是较适宜的条件。膜吸水率、... 详细信息

以聚丙烯中空纤维膜(PP膜)为基体,以二苯甲酮(BP)为光敏剂,采用紫外光辐照方法,接枝了丙烯酸(AAc)单体,制得了荷负电膜。结果表明,光敏剂(BP)和AAc单体质量分数分别为4.～6%和15%左右、光照时间为2.～3.min是较适宜的条件。膜吸水率、通量随接枝率增加而增大,当接枝率为17%左右时达到最大。膜通量随pH值增大而减小,PP-g-AAc膜是一种pH敏感的具有“开关”作用的智能膜。

关键词：聚丙烯中空纤维膜荷电膜膜纯水通量 pH滴定

Effects of I-tetrahydropalmatine on locomotor sensitization to oxycodone in mice

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Acta Pharmacologica Sinica 2005年第5期 533-538页

作者： Yan-li LIU~(1,2.,Jian-hui LIANG~3.Ling-di YAN~1,Rui-bin SU~1,Chun-fu WU~2.Ze-hui GONG~(1,4. ~1Beijing Institute of Pharmacology and Toxicology,Beijing 100850,china ~2.epartment of Pharmacology,Shenyang Pharmaceutical University,Shenyang 110016,china ~3.epartment of Neuropharmacology,National Institute on Drug Dependence,Peking University, Beijing 100083.china

Aim:Recent studies have shown that 1-tetrahydropalmatine(l-THP),an activecomponent of corydolis yanhusuo,can inhibit the development of the condi-tional place preference induced by opioid receptor agonists,but the effects of l-THP on locomotor sensitivity induced by opioid receptor agonists have not *** the present study,the effects of l-THP on locomotor sensitizationto oxycodone,which is an opioid receptor agonist,were ***:Micetreated daily for 7 d with 5 mg/kg oxycodone and challenged with the same doseafter 5 days of washout showed locomotor *** order to study theeffects of l-THP on locomotor sensitization induced by oxycodone,l-THP wasadministered at doses of 6.2.,12.5,and 18.75 mg/kg,4. min prior to treatment ***:l-THP per se did not affect the locomotor activity at thedoses of 6.2.,12.5,and 18.75 mg/kg,but could antagonize the hyperactivity in-duced by oxycodone(5mg/kg).co-administration of l-THP(18.75 mg/kg),4. minprior to oxycodone,could inhibit the development of sensitization to *** addition,l-THP(6.2.,12.5,and 18.75 mg/kg,ig)dose-dependently preventedthe expression of oxycodone ***:These results suggestedthat l-THP could attenuate the locomotor-stimulating effects of oxycodone andinhibit the development and expression of oxycodone behavioral sensitization.

关键词： l-tetrahydropalmatine oxycodone locomotor sensitization

Experimental investigation of high temperature thermal contact resistance with interface material

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Theoretical & Applied Mechanics Letters 2011年第5期1卷 41-44页

作者： Xiaoping Zheng1,Donghuan Liu,2.3.Dong Wei,4.and Xinchun Shang 2.3.1) Applied Mechanics Laboratory,Department of Engineering Mechanics,Tsinghua University,Beijing 100084.{2. 2. Department of Applied Mechanics,University of Science & Technology Beijing,Beijing 100083.{2. 3. National Center for materials Service Safety,University of Science & Technology Beijing,Beijing 100083.{2. 4. china Aerodynamics Research and development Center,Mianyang 62.000,{2. china Aerodynamics Research and development Center Mianyang 621000 China

Thermal contact resistance plays a very important role in heat transfer efficiency and thermomechanical coupling response between two materials,and a common method to reduce the thermal contact resistance is to fill a soft interface material between these two materials.A testing system of high temperature thermal contact resistance based on INSTRON 8874.is established in the present paper,which can achieve 600 C at the *** on this system,the thermal contact resistance between superalloy GH600 material and three-dimensional braid C/C composite material is experimentally investigated,under different interface pressures,interface roughnesses and temperatures,*** the same time,the mechanism of reducing the thermal contact resistance with carbon fiber sheet as interface material is experimentally *** show that the present testing system is feasible in the experimental research of high temperature thermal contact resistance.

关键词： thermal contact resistance interface material experimental research high temperature alloy C/C composite material

THE EFFECTS OF SPUTTERING POWER ON STRUCTURE AND ELECTRICAL PROPERTIES OF Cu FILMS

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Acta Metallurgica Sinica(English Letters) 2002年第2期15卷 215-220页

作者： F.P. Wang. P. Wu, L.Q. Pan, Y. Tian and H. Qiu Department of Physics, School of Applied Sciences, University of Science and Technology Beijing, Beijing 100083. china Beijing Keda-Tianyu Microelectronic {2. Technology development co. {3.., Beijing 100 Department of Physics School of Applied Sciences University of Science and Technology Beijing

Cu films with thickness of about 500nm were deposited on glass substrateswithout heating by DC magnetron sputtering in pure Ar gas of 1.0Pa. The sputtering powers weremaintained at 3.0V X 0.2.A, 4.0}V X 0.70A and 4.0V X l.04., and the corresponding deposition rates ofCu film reached 3.nm/min, l04.m/min and 167nm/min. X-ray diffraction, scanning electron microscopyand atomic force microscopy were used to observe the structural characteristics of the films. Theresistance of the films was measured using four-point probe technique. The amount of larger grainsincreases and the resistivity of the films decreases evidently with an increase in sputtering *** is considered that the increase in deposition rate with sputtering power mainly weakens theinfluence of residual gas atoms on the growing film, and increases substrate and gas temperatures,resulting in the increase in grain size and the decrease in resistivity of the Cu film.

关键词： Cu film DC magnetron sputtering sputtering power structure resistivity

Superhard nano-multilayers and nanocomposite coatings

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Progress in Natural Science:materials International 2005年第2期15卷 2-12页

作者： BAI Xiaoming, ZHENG Weitao* and AN Tao(Department of material Science and Key Laboratory of Automobile of MOE, Jilin University, Changchun 13.012.{2.) Department of material Science and Key Laboratory of Automobile of MOE Jilin University Changchun 130012 China

This paper reviews the recent development of nano-multilayers and nanocomposite coatings. The hardening mechanisms and design of hard coating are discussed in details. Recent research on Ti/TiN and nitride/nitride multilayer, Ti-Si-N and Ti-Al-Si-N nanocomposite coatings is described, and the perspectives of the related research are proposed.

关键词： nano-structured materials multilayer nanocomposite hardness