检索结果-南通市图书馆

茶叶 2013年第4期39卷 507-514页

作者： Zhao YH Han YY Shang AQ Zhang XM Wen J song ys Hebei Agricultural University Baoding Women's Vocational High School Hebei University

In this paper,questionnaires about college tea culture and humanism spirit have been investigated in the undergraduates of Hebei Agricultural University in mountainous area of Northern *** analyzing the survey results and the causes,the author made references and gave recommendations to the university students about the tea culture and humanism spirit cultivation.

关键词：人文精神茶文化大学生北部山区基础人气河北农业大学北方山区

铬酸盐生产工人DNA氧化损伤及全基因组DNA低甲基化与叶酸缺乏有关

在线全文

学校读者我要写书评

暂无评论

中华预防医学杂志 2012年第7期46卷 622-622页

作者： Wang TC song ys Wang H 宋艳双不详北京大学公共卫生学院劳动卫生与环境卫生学系

接触6价铬[cr（Ⅵ）]可导致DNA损伤、遗传不稳定性及患癌风险增加。叶酸缺乏会影响DNA甲基化，降低遗传物质的稳定性。然而，铬酸盐工人的叶酸缺乏和DNA损伤之间的关系尚不明确。

关键词：铬酸盐生产工人叶酸缺乏 DNA氧化损伤基因组DNA 低甲基化遗传不稳定性 DNA损伤 DNA甲基化

淋巴细胞反应加剧血管紧张素Ⅱ依赖性高血压的发生发展

在线全文

学校读者我要写书评

暂无评论

中华高血压杂志 2010年第8期18卷 778-778页

作者：张玲玉叶鹏 Crowley SD song ys Lin EE

EFFECT OF ELECTROLESS PLATING COBALT UPON CHARACTERISTICS OF NICKEL HYDROXIDE ELECTRODEFORRECHARGEABLEALKALINEBATTERIES

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 1998年第4期8卷 135-141页

作者： Wang, XY Zhang, ys Yan, J Yuan, HT song, DY Nankai Univ Inst New Energy Mat Chem Tianjin 300071 Peoples R China

ＩＮＴＲＯＤＵＣＴＩＯＮＮｉｃｋｅｌｈｙｄｒｏｘｉｄｅｅｌｅｃｔｒｏｄｅｓｈａｖｅｂｅｅｎｗｉｄｅｌｙｕｓｅｄａｓｐｏｓｉｔｉｖｅｅｌｅｃｔｒｏｄｅｉｎＮｉＣｄ，ＮｉＨ２ａｎｄＮｉＭＨｓｅｃｏｎｄａｒｙｂａｔ... 详细信息

ＩＮＴＲＯＤＵＣＴＩＯＮＮｉｃｋｅｌｈｙｄｒｏｘｉｄｅｅｌｅｃｔｒｏｄｅｓｈａｖｅｂｅｅｎｗｉｄｅｌｙｕｓｅｄａｓｐｏｓｉｔｉｖｅｅｌｅｃｔｒｏｄｅｉｎＮｉＣｄ，ＮｉＨ２ａｎｄＮｉＭＨｓｅｃｏｎｄａｒｙｂａｔｅｒｉｅｓ．Ｉｍｐｒｏｖｅｍｅｎｔ...

关键词： nickel hydroxide electrode electroless plating cobalt electrode performance electrochemical impedance conductivity

Measurement of electrical conductivity of 0.001 mol NaCl solution under high pressures

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1997年第18期42卷 1563-1566页

作者： Zheng, HF Xie, HS Xu, ys song, MS Guo, J Zhang, YM Department of Geology Peking University Beijing China Institute of Geochemistry Chinese Academy of Sciences Guiyang China

The experiments were carried out in a YJ-3000 ton press fitted with a wedge-type cubic anvil. The samples were pressed using pyropgyllite as the pressure medium. The conductance cell for the experiments was made of Te... 详细信息

关键词： electrical conductivity high pressure NaCI solution.

P-wave velocities of alkaline olivine basalt at high pressure and temperature and its controlling factors

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1997年第9期42卷 761-764页

作者： song, MS Xie, HS Zhang, YM Hou, W Xu, J Xu, ys Earth’s Interior Material Laboratory Institute of Geochemistry Chinese Academy of Sciences Guiyang China Institute of Earth Science Academia Sinica Taibei China

SEISMIC wave inversion is one of the most important means for us to recognize the compositionand structure of the Earth’s *** the experimental techniques of elastic wave ve-locity measurement at in situ high pressure... 详细信息

关键词： high pressure and temperature alkaline olvine basalt P-wave velocity softening effect phase transformation.

Phosphorus speciation and distribution in surface sediments of the Yellow Sea and East China Sea and potential impacts on ecosystem

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2015年第4期34卷 84-91页

作者： song Guodong LIU Sumei Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education College of Chemistry and Chemical Engineering Ocean University of China Qingdao Collaborative Innovation Center of Marine Science and Technology

For better understanding the phosphorus （P） cycle and its impacts on one of the most important fishing grounds and pressures on the marine ecosystem in the Yellow Sea （ys） and East China Sea （ECS）, it is essential to distinguish the contents of different P speciation in sediments and have the knowledge of its distribution and bioavailability. In this study, the modified SEDEX procedure was employed to quantify the different forms of P in sediments. The contents of phosphorus fractions in surface sediments were 0.20–0.89μmol/g for exchangeable-P （Exch-P）, 0.37–2.86μmol/g for Fe-bound P （Fe-P）, 0.61–3.07μmol/g for authigenic Ca-P （ACa-P）, 6.39–13.73μmol/g for detrital-P （DAP） and 0.54–10.06μmol/g for organic P （OP）. The distribution of Exch-P, Fe-P and OP seemed to be similar. The concentrations of Exch-P, Fe-P and OP were slightly higher in the Yellow Sea than that in the East China Sea, and low concentrations could be observed in the middle part of the ECS and southwest off Cheju Island. The distribution of ACa-P was different from those of Exch-P, Fe-P and OP. DAP was the major fraction of sedimentary P in the research region. The sum of Exch-P, Fe-P and OP may be thought to be potentially bioavailable P in the research region. The percentage of bioavailable P in TP ranged from 13%to 61%. Bioavailable P burial flux that appeared regional differences was affected by sedimentation rates, porosity and bioavailable P content, and the distribution of bioavailable P burial flux were almost the same as that of TP burial flux.

关键词： phosphorus speciation burial flux sediment Yellow Sea East China Sea

Non-canonical role of the ATR pathway in axon regeneration as a mechanosensitive brake

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2022年第11期17卷 2423-2424页

作者： Feng Li Yuanquan song Institute for Translational Brain Research Fudan UniversityShanghaiChina Raymond G.Perelman Center for Cellular and Molecular Therapeutics The Children’s Hospital of Philadelphiaand Department of Pathology and Laboratory MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA

DNA damage has been linked to *** DNA damage response(DDR)pathways help preserve DNA integrity in the nervous system during both the developmental and mature *** of factors in various signaling pathways responsive to different types of DNA damage have been associated with developmental syndromes with neurological symptoms(McKinnon,2009;Araújo and Kuraoka,2019;Khokhlova et al.,2020).

关键词： damage ATR DDR

Phase precipitation behavior and tensile property of a Ti-Al-Sn-Zr-Mo-Nb-W-Si titanium alloy

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2018年第12期37卷 1064-1069页

作者： Wen-Jing Zhang Xiao-Yun song song-Xiao Hui Wen-Jun Ye Wei-Qi Wang State Key Laboratory for Fabrication and Processing of Nonferrous Metals General Research Institute for Nonferrous Metals School of Materials and Metallurgy Northeastern University Baoti Group Co. Ltd.

The characteristic of precipitation behavior of a2 phase and silicide, and the tensile properties at room temperature and 650℃after heat treatments in anovel TiAl-Sn-Zr-Mo-Nb-W-Si titanium alloy（BTi-6431 S） were investigated by microstructure analysis and mechanics performance testing. The results show that no second phase precipitates after solution treatment(980 ℃/2 h, air cooling（AC）). However, when the solution-treated specimens are aged at 600 ℃（600 ℃/2 h,AC）,α;phase precipitates in the primary α phase, and the size of α;phase increases with the aging temperature increasing to 750 ℃. Meanwhile, 50-100-nm S2-type silicide particles precipitate along lamellar phase boundaries of transformed β phase after aging at 750 ℃. BTi-6431 S alloy shows the best650 ℃ ultimate tensile strength（UTS） and yield strength（ys） when treated in solution treatment. However, aging treatment results in a decline in 650 ℃ ultimate tensile strength. This may be attributed to the loss of solution strengthening due to the depletion of Al, Si and Zr of the matrix caused by the precipitation of Ti;Al and（TiZr）;Si;.Silicide is a brittle phase; therefore, its precipitation causes a sharp decrease in the room-temperature ductility of BTi-6431 S alloy.

关键词： High-temperature titanium alloy Precipitation behavior α_2 phase Silicide Tensile properties

Simulation analysis on policy interaction effects between emission trading and renewable energy subsidy

在线全文

学校读者我要写书评

暂无评论

Journal of Modern Power Systems and Clean Energy 2013年第2期1卷 195-201页

作者： Jie HUANG Feng XUE Xiaofang song NARI Group Corporation(State Grid Electric Power Research Institute) Nanjing 210003China

Greenhouse gas emission regulation and renewable energy promotion policies have been implemented in many *** these two kinds of regulation policies have complex interactions between each other,and can either enhance or reduce the overall emission reduction *** not well tuned,these regulation policies may deviate from their original intention and lead to unnecessary social ***,the policy effectiveness,cost effectiveness,and dynamic efficiency of different policy mixtures between emission trading and renewable energy subsidy are studied based on a novel dynamic simulation platform of power economy and power *** results show that these two kinds of regulation policy can coexist,but a good coordination between the emission trading and the renewable energy subsidy can achieve better emission reduction outcomes.

关键词： Dynamic simulation Energy conservation Emission reduction Emission trading Renewable energy Policy effectiveness