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检索条件"机构=SMALL"
382 条 记 录,以下是301-310 订阅
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Investigations and experiments of a new multi-layer complex liquid-cooled mirror
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Chinese Optics Letters 2004年 第7期2卷 407-410页
作者: 陆宇灵 程祖海 张耀宁 孙锋 余文峰 State Key Laboratory of Laser Technology Huazhong University of Science and Technology Wuhan 430074 State Key Laboratory of Laser Technology Huazhong University of Science and Technology Wuhan 430074his paper describes a new multi-layer complex liquid-cooled Si mirror with 3 cooling ducts in Archimedes spirals. Utilizing the ANSYS program the structure of the mirror is optimized and the thermal deformation model of the mirror is simulated. The simulation results show that the mirror has the following advantages: very small amount of surface deformation uniform distribution of temperature and surface deformation and fast surface shape restoration. The results of the experiments of thermal deformation and the surface restoration are accurately mapped to the simulation results.
This paper describes a new multi-layer complex liquid-cooled Si mirror with 3 cooling ducts in Archimedes spirals. Utilizing the ANSYS program, the structure of the mirror is optimized and the thermal deformation mode... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Colloidal chemistry in perovskite precursor solution
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Science Bulletin 2022年 第6期67卷 561-564页
作者: Zhi Xing Xiangchuan Meng Dengxue Li Ting Hu Xiaotian Hu Yiwang Chen College of Chemistry Institute of Polymers and Energy Chemistry(IPEC)Nanchang UniversityNanchang 330031China School of Materials Science and Engineering Nanchang UniversityNanchang 330031China Institute of Advanced Scientific Research(iASR) Key Laboratory of Functional Organic Small Molecules for Ministry of EducationJiangxi Normal UniversityNanchang 330022China Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010China
As an outstanding energy-harvesting technology,perovskite solar cells(PSCs)have gained much attention due to the excellent photoelectric *** performance of PSCs has been promoted to achieve breakthroughs repeatedly wi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Analysis of the Interface between Primary and Secondary Metabolism in Catharanthus roseus Cell Cultures Using ^13C-Stable Isotope Feeding and Coupled Mass Spectrometry
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Molecular Plant 2013年 第2期6卷 581-584页
作者: Carla Antonio Natali R. Mustafa Sonia Osorio Takayuki Tohge Patrick Giavalbco Lothar Willmitzer Heiko Rischer Kirsi-Marj Oksman-Caldentey Robert Verpoorte Alisdair R. Fernie Central Metabolism Group Max Planck Institute of Molecular Plant Physiology Am Muehlenberg 1 D-14476 Potsdam-Golm Germany Natural Products Laboratory Institute of Biology Leiden University Einsteinweg 55 2300 RA Leiden The Netherlands Present address: Departamento de Biologia Molecular y Bioquimica Universidad de M.~laga 29071 M=~laga Spain Genes and small Molecules Group Max Planck Institute of MolecularPlant Physiology Am Muehlenberg 1 D-14476 Potsdam-Golm Germany VTT Technical Research Centre of Finland PO Box 1000 F1-02044 VTT (Espoo) Finland
Dear Editor, The tropical plant Madagascar periwinkle Catharanthus roseus (L.) *** is a rich source of plant-derived medicinal ter-penoid indole alkaloids (TIAs), including the anti-hypertensive ajmalicine, the s... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
INFLUENCE OF EXTERNAL HELICAL FIELD ON THE TEARING MODE
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Chinese Science Bulletin 1983年 第3期28卷 316-320页
作者: 马腾才 龙永兴 Southwestern Institute of Physics Academia Sinica Leshan Southwestern Institute of Physics Academia Sinica Leshant has been found that in many tokamak discharges a strong correlation exists between the tearing modes and the current disruption. The disruption is initiated by the current in helical windings and small resonant helical field will exert a stabilizing
It has been found that in many tokamak discharges a strong correlation exists between the tearing modes and the current disruption. The disruption is initiated by the current in helical windings, and small resonant he... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
ENRICHMENT OF LITHIUM ISOTOPES BY HIGH PRESSURE ION EXCHANGE DISPLACEMENT CHROMATOGRAPHY
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Chinese Science Bulletin 1983年 第8期28卷 1031-1034页
作者: 凌达仁 郑祖英 岳廷盛 徐惠群 杨坤山 王娅妮 Department of Modern Physics Langzhou University Department of Modern Physics Langzhou Universityn enrichment factor as large as possible and a height equivalent to theoretical plate (HETP) as small as possible are required in isotope enrichments. The relation between enrichment factor HETP and degree of enrichment can be expressed by the boundary equation of the equilibrium theory of the distillation type model
An enrichment factor as large as possible and a height equivalent to theoretical plate (HETP) as small as possible are required in isotope enrichments. The relation between enrichment factor, HETP and degree of enrich... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Analyses and computations of asymmetric Z-scan for large phase shift from diffraction theory
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Chinese Optics Letters 2003年 第2期1卷 111-113页
作者: 任立勇 姚保利 侯洵 刘立人 周常河 Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 State Key Laboratory of Transient Optics Technology Xi'an Institute of Optics and Precision Mechanics Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800ased on Presnel-Kirchhoff diffraction theory we set up a diffraction model of nonlinear optical media to Gaussian beam which can interpret the Z-scan phenomenon from a new way. This theory is not only well consistent with the conventional Z-scan theory in the case of small nonlinear phase shift but also can fit for the lager nonlinear phase shift. Numeric computations indicate the shape of the .Z-scan curve is greatly affected by the value of the nonlinear phase shift. The symmetric dispersion-like Z-scan curve is only valid for small nonlinear phase shift (|Δφ0| < π) but with increasing the nonlinear phase shift the valley of the transmittance is severely suppressed and the peak is greatly enhanced. Further calculations show some new interesting results.
Based on Presnel-Kirchhoff diffraction theory, we set up a diffraction model of nonlinear optical media to Gaussian beam, which can interpret the Z-scan phenomenon from a new way. This theory is not only well consiste... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
The Influence of Feeding Regimen on the Composition of the Fat Pads in the Bovine Digital Cushion
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Agricultural Sciences 2015年 第9期6卷 889-899页
作者: Martha Raber Vera Letter Andre Chassot Hans Geyer Martin R.L.Scheeder Consulting and Health Service for small Ruminants HerzogenbuchseeSwitzerland Institute of Veterinary Anatomy University ZurichSwitzerland Clinic Aarau West OberentfeldenSwitzerland Federal Research Station for Animal Production ALPPosieuxSwitzerland Institute of Animal Science ETH Zurich(Now)Applied SciencesSchool of AgricultureForest and Food SciencesZollikofenUniversity of BernSwitzerland
The effect of an intensive/extensive feeding regimen on lipid content and fatty acid composition of the bovine digital cushion was investigated in 32 beef cattle of both genders, divided in 2 groups (16 per intensive/... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
人体重组白细胞介素-6的二级结构,拓扑及溶液的三维结构
人体重组白细胞介素-6的二级结构,拓扑及溶液的三维结构
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第九届全国波谱学学术会议
作者: 徐光漪 Hsiang-Ai Yu Tom McDonagh Jin Hong Lewis E.Key Dale A Cumming From the small Molecule Drug Discovery Group Genetics Institute87 Cambridge Park DriveCambridgeMA 02140 and the Dept.of Medical GeneticsBiochemistry and Chemistry
Cytokine Interleukin-6(IL-6)是由185个氨基酸组成的蛋白质.用N单标记以及N/C双标记蛋白质,通过高分辨异核多重核磁共振(2D-,3D-,4D-)实验,完成了蛋白质分子骨架及侧链H,N和C的完全指定.结合C化学位移,骨架上酰胺-NH的交换速度以及N-ed...
来源: cnki会议 评论
First Record of the Genus Wijayarana (Anura, Ranidae) from Yunnan, China
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Asian Herpetological Research 2023年 第1期14卷 116-120,I0006页
作者: Dongyi WU Junkai HUANG Yunhe WU Xiaolong LIU Jing CHE Zhiyong YUAN Key Laboratory of Freshwater Fish Reproduction and Development Ministry of EducationSouthwest UniversityChongqing 400715China Key Laboratory for Conserving Wildlife with small Populations in Yunnan Southwest Forestry UniversityKunming 650224YunnanChina Key Laboratory of Rare and Endangered Animal Ecology Guangxi ProvinceCollege of Life ScienceGuangxi Normal UniversityGuilin 541001GuangxiChina State Key Laboratory of Genetic Resources and Evolution Yunnan Key Laboratory of Biodiversity and Ecological Conservation of Gaoligong MountainKunming Institute of ZoologyChinese Academy of SciencesKunming 650223YunnanChina Southeast Asia Biodiversity Research Institute Chinese Academy of SciencesYezinNay Pyi Taw 05282Myanmar
Dear Editor,e family Ranidae is one of the largest and most families of amphibians(Che et al.,2007),with 64 recognized genera and429 species(Frost,2022).However,the systematics and natural history of some ranid groups... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Yunnanilus chuanheensis, a new loach species(Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China
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Zoological Research 2021年 第2期42卷 241-245页
作者: Wan-Sheng Jiang Ya-Peng Zhao Li-Na Du Mo Wang Hunan Engineering Laboratory for Chinese Giant Salamander’s Resource Protection and Comprehensive Utilization and Key Laboratory of Hunan Forest and Chemical Industry EngineeringJishou UniversityZhangjiajieHunan 427000China Yunnan Key Laboratory of Plateau Fish Breeding Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Key Laboratory for Conserving Wildlife with small Populations in Yunnan and Faculty of Biodiversity ConservationSouthwest Forestry UniversityKunmingYunnan 650224China Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Guangxi Normal University) Ministry of EducationGuilinGuangxi 541004China Guangxi Key Laboratory of Rare and Endangered Animal Ecology College of Life ScienceGuangxi Normal UniversityGuilinGuangxi 541004China
DEAR EDITOR,A new loach species(Cypriniformes: Nemacheilidae:Yunnanilini), Yunnanilus chuanheensis sp. nov., was caught from Chuanhe in the upper reaches of the Lixianjiang River, a tributary of the Red River in Nanji... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论