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| 1 | Different sperm sources and parameters can influence intracytoplasmic sperm injection outcomes before embryo implantation显示文摘To evaluate the effects of sperm with different parameters and sources on the outcomes of intracytoplasmic sperm injection (ICSI), 1972 ICSI cycles were analyzed retrospectively. Groups 1 to 5 were composed of cycles using ejaculated sperm and were grouped according to sperm quantity, quality, and morphology into normal (288 cycles), or mild (329 cycles), moderate (522 cycles), severe (332 cycles), and extremely severe (171 cycles) oligozoospermia and/or asthenozoospermia and/or teratozoospermia (OAT) groups. Group 6 was composed of 250 cycles using testicular or epididymal sperm, and Group 7 consisted of 80 cycles using frozen-thawed sperm. We found that fertilization rates were gradually reduced from Groups 1 to 6, and reached statistical difference in Groups 5 and 6 (P<0.05). The high-quality embryo rate was higher in Group 1 than in Groups 2, 3, 5, 6, and 7 (P<0.05). No statistical differences were observed in the rates of embryo cleavage, clinical pregnancy, miscarriage, live-birth, premature birth, low birth weight, weeks of premature birth, average birth weight, or sex ratio for all seven groups (P>0.05). A total of nine cases of malformation were observed, with a malformation rate of 1.25% (9/719). In conclusion, different sperm sources and parameters can affect ICSI outcomes before embryo implantation. A full assessment of offspring mal-formation will require further study using a larger sample size. | Yue-hong LU1,2, Hui-juan GAO1, Bai-jia LI1, Ying-ming ZHENG1, Ying-hui YE1, Yu-li QIAN1, Chen-ming XU1, He-feng HUANG1, Fan JIN1 (1Department of Reproductive Endocrinology, Key Laboratory of Reproductive Genetics, Ministry of Education, and Key Laboratory of Women’s Reproductive Health of Zhejiang Province, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China) (2Department of Reproductive Health, Shaoxing Women and Children Hospital, Shaoxing 312000, China) | 2012 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2012，13，1： | 14 |
| 2 | Development of the universal and simplified soil model coupling heat and water transport显示文摘It is very important to develop a universal soil model with higher simplicity and more accuracy, which can be widely applied to very general cases such as wet or dry soil, frozen or unfrozen soil and homogeneous or heterogeneous soil. Firstly in this study, based on analysis of both magnitude order and the numerical simulation results, the universal and simplified soil model (USSM) coupling heat and mass transport processes is developed. Secondly, in order to avoid the greater uncertainty caused by the phase change term in numerical iteration process for the model solution obtaining, new version of the universal simplified soil model (NUSSM) is further derived through variables transformation, and accordingly a more efficient numerical scheme for the new version is designed well. The simulation results from the NUSSM agree with the results from more complicated and accurate soil model very well, also reasonably reproduce the observed data under widely real conditions. The new version model, because of its simplicity, will match for the development of land surface model. | LI Qian1,2 & SUN ShuFen1 1 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 2 Graduate University of the Chinese Academy of Sciences, Beijing 100049, China | 2008 | Science China Earth Sciences2008，51，1： | 11 |
| 3 | Si-and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China:Implication for lithospheric evolution显示文摘Minerals of spinel- and garnet-facies mantle xenoliths entrained in Cenozoic basalts from eastern China (North China, Northeastern China and Southeastern China coastal area) contains lots of melt inclusions. Studies on these melt inclusions show that the glass inclusions are rich in SiO2 (60%―68%) and alkalis (K2O+Na2O=5%―11%, especially for K2O) as well as volatiles such as H2O and CO2 (2%―7%), which belong to dacites and andesites of the high-K calcic alkali series rocks with few shoshonites. High Al and Ca diopside in melt inclusion is the product of melt crystallization at high temperature and pressure, rather than the product of devitrification. Results show that these K-rich (in general K2O>3%) intermediate-acidic silicate melt inclusions have characteristics of continent without a genetical link to host basalts and their phenocrystic minerals. Thus, these trapped melt inclusions represent melts of Mesozoic lithospheric mantle-crust interaction and imply that the continental litho-spheric mantle beneath eastern China had undergone fragmentation and recreation processes during the Mesozoic and Cenozoic periods. This result undoubtly provides important implication for the evo-lution of sub-continental lithosphere beneath eastern China. We propose that these Si- and alka-lis-rich melts should be responsible for the mantle chemical heterogeneity underneath eastern China. | FAN Qicheng1, SUI Jianli2, XU Ping2, LI Ni1, SUN Qian1 & WANG Tuanhua1 1. Institute of Geology, China Seismological Bureau, Beijing 100029, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China | 2006 | Science China Earth Sciences2006，49，1： | 9 |
| 4 | First-principles study on the electronic structure and optical properties of CrSi_2显示文摘Using the first principle methods based on the plane-wave pseudo-potential theory, band structure, density of states and optical properties of CrSi2 were studied. The calculation of band structure shows that CrSi2 is an indirect semiconductor whose band gap is 0.353 eV. Density of states is mainly composed of 3d electron of Cr and 3p electron of Si. Dielectric function, refractive index, reflectivity, and absorption coefficient of CrSi2 are also calculated. The calculation results of optical properties are in agreement with the experiments. | ZHOU ShiYun1,2, XIE Quan1, YAN WanJun1 & CHEN Qian1 1 College of Electronic Science & Information Technology, Guizhou University, Guiyang 550025, China 2 Department of Physics, Anshun College, Anshun 561000, China | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，1： | 8 |
| 5 | First-principle study on the electronic structure of stressed CrSi_2显示文摘The electronic structure of stressed CrSi2 was calculated using the first-principle methods based on plane-wave pseudo-potential theory. The calculated results showed that, under the uniaxial compression, the energy level of CrSi2 shifted toward high energy and its energy gap became wider with the increasing uniaxial stress, while the gap became narrower under the negative uniaxial stress. When the negative uniaxial stress was up to -18.5 GPa, CrSi2 was converted into a direct-gap semiconductor with the band gap of 0.32 eV. | ZHOU ShiYun1,2, XIE Quan1, YAN WanJun1 & CHEN Qian1 1 College of Electronic Science & Information Technology, Guizhou University, Guiyang 550025, China 2 Department of Physics, Anshun College, Anshun 561000, China | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，1： | 8 |
| 6 | Quantitative analysis of rockburst for surrounding rocks and zonal disintegration mechanism in deep tunnels显示文摘Rock masses without pre-existing macrocracks can usually be considered as granular materials with only microcracks.During the excavation of the tunnels,microcracks may nucleate,grow and propagate through the rock matrix;secondary microcracks may appear,and discontinuous and incompatible deformation of rock masses may occur.The classical continuum elastoplastic theory is not suitable for analyzing discontinuous and incompatible deformation of rock masses.Based on non-Euclidean model of the discontinuous and incompatible deformation of rock masses,the distribution of stresses in the surrounding rock masses in deep tunnels is fluctuant or wave-like.The stress concentration at the tips of microcracks located in vicinity of stress wave crest is comparatively large,which may lead to the unstable growth and coalescence of secondary microcracks,and consequently the occurrence of fractured zones.On the other hand,the stress concentration at the tips of microcracks located around stress wave trough is relatively small,which may lead to the arrest of microcracks,and thus the non-fractured zones.The alternate appearance of stress wave crest and trough thus may induce the alternate occurrence of fractured and non-fractured zones in deep rock masses.For brittle rocks,the dissipated energy of microcrack growth is small,but the elastic strain energy stored in rock masses may be larger than the dissipated energy growths of pre-existing microcracks and secondary microcracks.The sudden release of the residual elastic strain energy may lead to rockburst.Based on this understanding,the criteria of rockburst are established.Furthermore,the relationship between rockbursts and zonal disintegration in the surrounding rock masses around deep tunnels is studied.The influences of the in-situ stresses and the physico-mechanical parameters on the distribution of rockburst zones and the ejection velocity of rock fragments are investigated in detail. | Qihu Qian1,Xiaoping Zhou2 1 Engineering Institute of Engineering Corps,PLA University of Science and Technology,Nanjing,210007,China 2 School of Civil Engineering,Chongqing University,Chongqing,400045,China | 2011 | Journal of Rock Mechanics and Geotechnical Engineering2011，3，1： | 6 |
| 7 | Ectopic expression of foxtail millet zip-like gene,SiPf40,in transgenic rice plants causes a pleiotropic phenotype affecting tillering,vascular distribution and root development显示文摘Plant architecture determines grain production in rice(Oryza sativa) and is affected by important agronomic traits such as tillering,plant height,and panicle morphology.Many key genes involved in controlling the initiation and outgrowth of axillary buds,the elongation of stems,and the architecture of inflorescences have been isolated and analyzed.Previous studies have shown that SiPf40,which was identified from a foxtail millet(Setaria italica) immature seed cDNA library,causes extra branches and tillers in SiPf40-transgenic tobacco and foxtail millet,respectively.To reconfirm its function,we generated transgenic rice plants overexpressing SiPf40 under the control of the ubiquitin promoter.SiPf40-overexpressing transgenic plants have a greater tillering number and a wider tiller angle than wild-type plants.Their root architecture is modified by the promotion of lateral root development,and the distribution of xylem and phloem in the vascular bundle is affected.Analysis of hormone levels showed that the ratios of indole-3-acetic acid/zeatin(IAA/ZR) and IAA/gibberellic acid(IAA/GA) decreased in SiPf40-transgenic plants compared with wild-type plants.These findings strongly suggest that SiPf40 plays an important role in plant architecture. | LUAN YunXia1,2,WANG BaoSheng1,ZHAO Qian1,AO GuangMing1 & YU JingJuan1* 1State Key Laboratory for Agrobiotechnology,College of Biological Sciences,China Agricultural University,Beijing 100193,China 2National Engineering Research Center for Information Technology in Agriculture,Beijing 100097,China | 2010 | Science China(Life Sciences)2010，53，12： | 5 |
| 8 | First-principles calculations on the electronic structure and optical properties of BaSi_2显示文摘The electronic structure,densities of states and optical properties of the stable orthorhombic BaSi2 have been calculated using the first-principle density function theory and pseudopotential method. The results show that BaSi2 is an indirect semiconductor with the band gap of 1.086 eV,the valence bands of BaSi2 are mainly composed of Si 3p,3s and Ba 5d,and the conduction bands are mainly composed of Ba 6s,5d as well as Si 3p. The static dielectric function ε1(0) is 11.17,the reflectivity n0 is 3.35,and the biggest peak of the absorption coefficient is 2.15×105 cm-1. | ZHAO FengJuan1,2,XIE Quan1,2,CHEN Qian1,2 & YANG ChuangHua1,2 1 Institute of New type Optoelectronic Materials and Technology,Guizhou University,Guiyang 550025,China 2 College of Electronic Science and Information Technology,Guizhou University,Guiyang 550025,China | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，4： | 4 |
| 9 | Magnetic properties of cobalt-based oxypnictide SmCoAsO显示文摘The magnetic properties of cobalt-based oxypnictides SmCoAsO are investigated by measuring magnetization,magnetoresistance and specific heat.The compound undergoes a ferromagnetic(FM) transition around Tc of 80 K,and a ferromagnetic to antiferromagnetic(AFM) transition below TN1 of about 45 K,and finally an AFM order of Sm ion at TN2 of 5.6 K.The weak FM order should originate from the itinerant 3d electrons of Co ions in the CoAs layers.We propose that the magnetic structure should be A-type AFM,which means that the FM order remains within the CoAs layer and the magnetic coupling between the CoAs layers becomes AFM below TN1 of 45 K.The AFM coupling between the CoAs layers should be very weak.A magnetic field μ0H of about 2 T may cause an AFM-FM metamagnetic transition.A rich magnetic phase diagram is established and the interplay between the 3d electrons of Co ions and 4f electrons of Sm ions is discussed. | LI YuKe1,TONG Jun1,HAN Han1,ZHANG Li2,TAO Qian1,CAO GuangHan1 & XU ZhuAn1* 1 Department of Physics,Zhejiang University,Hangzhou 310027,China 2 Department of Physics,China Jiliang University,Hangzhou 310018,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，7： | 3 |
| 10 | Virtual Evaluation on Activities of Flavonoids from Scutellaria baicalensis显示文摘Objective To explore the investigation method of complicated and profound traditional Chinese herbal medicine,the potential action mechanisms of flavonoids from Scutellaria baicalensis were studied by docking calculation.Methods In total,eight flavonoids(aglycones and their glicosides) from S.baicalensis were selected as ligands.The crystalline structures of targets related to common diseases were used as the receptors for calculation.The calculations were conducted with Schrdinger software package.The grading standard of selectivity was developed according to G-score between ligands and receptors.Results Twenty-six pharmacologic actions have been reported.Among all effects in literature,nine of them can be deduced from the docking calculation of aglycone.From glycosides with grade ++,25 reported effects can be estimated by calculation.Apparently,the target selectivity of aglycones and their glycosides are different form the virtual evaluation.The virtual evaluation results of glycosides were closer to the reported effects.Conclusion Our proposed virtual evaluation method seems an effective way to investigate the complicated system of traditional Chinese herbal medicine.It suggests that aglycones may be effective as the form of glucoside in vivo,and metabolism is a very important factor for virtual evaluation. | SHANG Qian1,2,LIU Wei2,XU Wei-ren2,LIU Peng2,HAN Ying-mei2,CHEN Cheng-lung3,TANG Li-da2 1.Basic Medical College,Tianjin Medical University,Tianjin 300070,China 2.Tianjin Key Laboratory of Molecular Design and Drug Discovery,Tianjin Institute of Pharmaceutical Research,Tianjin 300193,China 3.Department of Chemistry,National Sun Yat-sen University,Kaohsiung 80424,China | 2010 | Chinese Herbal Medicines2010，2，2： | 3 |
| 11 | Characteristics of echolocating bats’auditory stereocilia length, compared with other mammals显示文摘The stereocilia of the Organ of Corti in 4 different echolocating bats, Myotis adversus, Murina leuco-gaster, Nyctalus plancyi (Nyctalus velutinus), and Rhinolophus ferrumequinum were observed by using scanning electron microscopy (SEM). Stereocilia lengths were estimated for comparison with those of non-echolocating mammals. The specialized lengths of outer hair cells (OHC) stereocilia in echolocating bats were shorter than those of non-echolocating mammals. The specialized lengths of inner hair cells (IHC) stereocilia were longer than those of outer hair cells stereocilia in the Organ of Corti of echolocating bats. These characteristics of the auditory stereocilia length of echolocating bats represent the fine architecture of the electromotility process, helping to adapt to high frequency sound and echolocation. | YAO Qian1,6, ZENG JinYao2, ZHENG YongMei3, Julia LATHAM4, LIANG Bing1, JIANG Lei3 & ZHANG ShuYi51 Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China 2 College of Wildlife Resources, Northeast Forestry University, Harbin 150040, China 3 Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China 4 Zoological Society of London, Institute of Zoology, London, NW1 4RY, England 5 School of Life Science, East China Normal University, Shanghai 200062, China 6 Graduate University of Chinese Academy of Sciences, Beijing 100049, China These authors contributed equally to this work | 2007 | Science China(Life Sciences)2007，50，4： | 2 |
| 12 | A Novel and Optimized Method for Electro-focusing and Moving Neutralization Reaction Boundary Formed by HCl and NaOH显示文摘A novel method is developed for electro-focusing and moving neutralization reaction boundary (MNRB) created with HCl and NaOH. The optimized conditions are screened out. By using this method, the experiments are performed on MNRB formed with HCl and NaOH in agarose gel. The experiments are quantitatively in coincidence with the predictions with the theory of moving chemical reaction boundary (MCRB). | Shu Lin ZHOU1,2, Cheng Xi CAO1*, You Zhao HE1, Wen Kui CHEN2, Yi Tai QIAN1 1Department of Chemistry, University of Science and Technology of China, Hefei 230026 2Institute of Allergy Research, Wannan Medical College, Anhui Wuhu 241001 | 2001 | Chinese Chemical Letters2001，12，2： | 1 |
| 13 | The Tychonoff uniqueness theorem for the G-heat equation显示文摘In this paper we shall investigate a uniqueness result for solutions of the G-heat equation. We obtain the Tychonoff uniqueness theorem for the G-heat equation. | LIN Qian1,2 1School of Mathematics, Shandong University, Jinan 250100, China 2 Laboratoire de Mathématiques, CNRS UMR 6205, Université de Bretagne Occidentale, 6, avenue Victor Le Gorgeu, CS 93837, 29238 Brest cedex 3, France | 2011 | Science China Mathematics2011，54，3： | 1 |
| 14 | 显示文摘 | CAI Tiejun1 LIAO Yuchao2 PENG Zhenshan1 LONG Yunfei1 WEI Zongyuan1 DENG Qian1 1. College of Chemistry & Chemical Engineering Hunan University of Science & Technology Xiangtan 411201 China.2. Institute of Process Engineering Chinese Academy of Sc | 2009 | Journal of Environmental Sciences2009，，07： | 1 |
| 15 | Mechanical and Experimental Study of Sprinkling Water Cooling System on Roof of Shanghai Expo Theme Pavilion显示文摘Based on the similarity theory,a scale effect model of the spraying water cooling system of Shanghai expo Theme Pavilion's roof was set up.According to the typical weather conditions in Shanghai city,different models were analyzed on solar radiation,and different heat transfer amount was obtained.And the following conclusions could be made:At the sunny day of summer in Shanghai,the temperature of inner roof with sprinkling system descended about 3 ℃,and the air conditioning load of the whole Theme Pavilion descend more than 320 kW. | ZHAO Hui-zhong1,HUANG Chen1,LI Wei-xiang2,SHI Jin-yue2,TAO Si-yuan1,WANG Qian1,WANG Yu-qing1,ZHANG Min3(1.College of Urban Construction and Environment Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China 2.Architectural Design & Research Institute of Tongji University,Shanghai 200092,China 3.College of Food Science Technology,Shanghai Ocean University,Shanghai 201306,China) | 2009 | 湖南大学学报(自然科学版)2009，36，S1： | 0 |
| 16 | Physically-based approach to analyze rainfall-triggered landslide using hydraulic gradient as slide direction显示文摘An infinite slope stability numerical model driven by the comprehensive physically-based integrated hydrology model(InHM) is presented.In this approach,the failure plane is assumed to be parallel to the hydraulic gradient instead of the slope surface.The method helps with irregularities in complex terrain since depressions and flat areas are allowed in the model.The present model has been tested for two synthetic single slopes and a small catchment in the Mettman Ridge study area in Oregon,United States,to estimate the shallow landslide susceptibility.The results show that the present approach can reduce the simulation error of hydrological factors caused by the rolling topography and depressions,and is capable of estimating spatial-temporal variations for landslide susceptibilities at simple slopes as well as at catchment scale,providing a valuable tool for the prediction of shallow landslides. | Qi-hua RAN1,Dan-yang SU1,Qun QIAN1,Xu-dong FU2,Guang-qian WANG1,2,Zhi-guo HE3 (1Department of Hydraulic Engineering,Zhejiang University,Hangzhou 310058,China) (2State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China) (3Department of Ocean Science and Engineering,Zhejiang University,Hangzhou 310058,China) | 2012 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2012，13，12： | 0 |
| 17 | Research on Application of Landscape Pattern in Regional Planning显示文摘Landscape ecology is a new science and there are few cases about applying landscape pattern analysis in optimizing regional planning.By taking the planning of the special planning area for Boao Forum for Asia as the study object,several important landscape indexes have been selected for static analysis of landscape structural feature and landscape structural stability.By using ArcGIS,landscape structural stability map has been overlaid with land use planning map,and then optimization suggestions have been proposed for unreasonable plots.Landscape type and landscape pattern diversity have been selected for dynamic analysis and then suggestions for landscape security pattern been put forward.Through case studies,it has provided a reference for landscape pattern analysis as a means to optimize regional planning. | LIU Qian1,WANG Wenyi2,LIN Sheng3,ZENG Weihua2(1.Environmental Protection Bureau of Chaoyang District Beijing Municipality,Beijing 100026,China 2.School of Environment,Beijing Normal University,Beijing 100875,China 3.Hainan Research Academy of Environmental Sciences,Haikou,Hainan 570206,China) | 2012 | Journal of Landscape Research2012，4，7： | 0 |
| 18 | Nerve-heart interplays recorded in rabbit hearts in vivo显示文摘Neurotransmitter release from presynaptic cells can be recorded by postsynaptic potentials/currents in central nerve system. However, little is known about how to | Lei Qian1,2, Gu Jing-Li 1,3, Lü Jin 1,3, Mu Yu 1,2, Xiu Yun1,3, Xing Jiang Kang 1, Guo Shu 1,3, Xu Hua-Dong1, Zhang Xiao-Yu 1, Zhang Claire Xi1, Cao Ji-Min 3, Li Li-Huan2, Zhou Zhuan 1 1Institute of Molecular Medicine, Peking University, Beijing 100871, China 2Fuwai Hospital, and 3Institute of Basic Medical Science, Peking Union Medical College, Beijing 100005,China | 2009 | 生物物理学报2009，25，S1： | 0 |
| 19 | A CORRECTION MODEL FOR HYPER-CONCENTRATED FLOW显示文摘A simple correction model is introduced to describe the complicated profiles for suspended sediment concentration in the hyper-concentrated flow. Tile framework is based on tile kinetic theory for dilute solid/liquid tWo-phase flow suggested by Ni & Wang (1991). The predicted results from the model agree satisfactorily with the data from Michalik (1973). | NI Jinren1. WANG Guangqian2and LIAO Qian1 (1 Department of Urban & Environmental Sciences, Peking University Beijing, 100871. China 2 Department of Hydraulic Engineering, Tsinghua University. Beijing. 100084. China) | 1999 | International Journal of Sediment Research1999，14，2： | 0 |
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