|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of Hot Extrusion on Interfacial Microstructure and Tensile Properties of SiC_p/2009Al Composites Fabricated at Different Hot Pressing Temperatures显示文摘The effects of hot extrusion on the interfacial microstructures and tensile properties of 15 vol.SiCp/2009Al composites fabricated at different hot pressing temperatures were investigated.After hot extrusion,the relative density of the composites increased,the SiC particle distribution became more uniform,and the SiC particles tended to align along the extrusion direction.Furthermore,the interface bonding was improved after hot extrusion;however,the extrusion exerted no obvious effect on the interfacial reaction products formed during sintering process.Tensile tests indicated that the mechanical properties of the composites were improved significantly after extrusion.Fractography revealed that the fracture mechanism of the extruded composites fabricated at the hot pressing temperatures below 540℃ was mainly the interfacial debonding.For the extruded composites fabricated at 560-600℃,the fracture was the matrix ductile fracture and the SiC particle fracture.When the composites were hot pressed at or above 620℃,after extrusion,the fracture mechanism of the composites was the matrix ductile fracture,the interface cracking and the SiC particle fracture. | Peng Jin Bolu Xiao Quanzhao Wang Zongyi Ma Yue Liu Shu Li | 2011 | Journal of Materials Science & Technology2011，27，6： | 11 |
| 2 | Seasonal vertical crustal mo-tions in China detected by GPS显示文摘By analyzing daily continuous data of Chinese Global Positioning System (GPS) fiducial network with 25 sites from 1999 to 2001, seasonal altitude variations with amplitude of 3-10 mm are detected. Most part of the variations can be explained by the seasonal vertical crustal movements caused by atmospheric pressure variation and mass loading redistribution of non-tidal ocean loading, snow, and soil moisture. Nevertheless, there exists a systematic discrepancy between GPS deduced result and the counterpart predicted by combining various geophysical sources. Much longer time series of GPS site coordinates and further studies are still needed to give out a reasonable interpretation for this discrepancy. | ZHANG Feipeng DONG Danan CHENG Zongyi CHENG Mingkang HUANG Cheng | 2002 | Chinese Science Bulletin2002，47，21： | 11 |
| 3 | A bHLH transcription activator regulates defense signaling by nucleo-cytosolic trafficking in rice显示文摘Crosstalk between plant hormone signaling pathways is vital for controlling the immune response during pathogen invasion.Salicylic acid(SA)and jas-monic acid(JA)often play important but antagonistic roles in the immune responses of higher plants.Here,we identify a basic helix-loop-helix transcription acti-vator,OsbHLH6,which confers disease resistance in rice by regulating SA and JA signaling via nucleo-cytosolic trafficking in rice(Oryza sativa).OsbHLH6 expression was upregulated during Magnaporthe oryzae infection.Transgenic rice plants overexpressing OsbHLH6 display increased JA responsive gene expression and enhanced disease susceptibility to the pathogen.Nucleus-localized OsbHLH6 activates JA signaling and suppresses SA signaling;however,the SA regulator OsNPR1(Nonexpressor of PR genes 1)sequesters OsbHLH6 in the cytosol to alleviate its effect.Our data suggest that OsbHLH6 controls disease re-sistance by dynamically regulating SA and JA signaling. | Fanwei Meng Chao Yang Jidong Cao Huan Chen Jinhuan Pang Qiqi Zhao Zongyi Wang Zheng Qing Fu Jun Liu | 2020 | Journal of Integrative Plant Biology2020，62，10： | 10 |
| 4 | Key Technology in Developing Web-Based Engineering Drawing CAI Software显示文摘Key techniques to improve the quality of developing Web-based engineering drawing CAI software are discussed and some experience in applying commercial tools for generating vector drawing, concise representation of 3D solids, real-time interactive animation, data management etc. is illustrated. A Web-based Engineering Drawing CAI software 'Solid Projection' has been implemented by using these techniques. | Feng Kaiping Zuo Zongyi (Guangdong University of Technology, Guangzhou 510090, China) Wen Junwen (Physics Department, Zhanjiang Normal College Jinhua 316101, China) Miscillaneous | 2000 | Computer Aided Drafting,Design and Manufacturing2000，10，2： | 7 |
| 5 | Hydrophilic bismuth sulfur nanoflower superstructures with an improved photothermal efficiency for ablation of cancer cells显示文摘Nanomaterials 与强烈在红外线附近(NIR ) 吸收展览有效 photon-to-thermal 精力转移能力和罐头产生热切除癌症房间,因此在 photothermal 癌症治疗学起一个枢轴的作用。此处,吸水的象花的铋硫(双性人 2 有一致尺寸的 S 3) 上层建筑和改进 NIR 吸收 controllably 经由 polyvinylpyrrolidone (PVP ) 帮助的一个灵巧的 solvothermal 过程被综合,它能调整产品形态学。由 808-nm 激光导致了,同样准备的双性人 2 S 3 nanoflowers 比双性人 2 当 PVP 不在时准备的 S 3 nanobelts (36.5%) 。这能被归因于双性人 2 与一个更低的乐队一起与 NIR 光而且到非结晶的结构的改进反射率和吸收用作许多激光洞镜子的 3-dimensional crumpled-paper-like nanosheets 装配的 S 3 nanoflower 上层建筑豁开。因此,当使用双性人 2 与相比的 S 3 nanoflowers 用双性人 2 S 3 nanobelts,它由于减少的毒性在治疗为使用使他们更有利。而且,这些双性人 2 S 3 nanoflowers 有效地在 vitro 并且在 vivo 完成了癌症房间的 photothermal 脱离。这些结果不仅支持了双性人 2 是的 S 3 nanoflowers 为癌症治疗的一个有希望的 photothermal 代理人而且铺了一条途径与改进 photothermal 效率利用新代理人。 | Zhiyin Xiao Chaoting Xu Xiaohong Jiang Wenlong Zhang Yuxuan Peng Rujia Zou Xiaojuan Huang Qian Liu Zongyi Qin Junqing Hu | 2016 | Nano Research2016，9，7： | 7 |
| 6 | Microstructure and mechanical property evolution of friction stir welded(B4C+Al2O3)/Al composites designed for neutron absorbing materials显示文摘(B4C+Al2O3)/Al composite designed for the dry storage of spent nuclear fuels was fabricated and then subjected to friction stir welding, at a welding speed of 100 mm/min and rotation rates of 400–800 r/min. Sound joints were obtained under all welding parameters;however, significant softening occurred in the nugget zone(NZ) for all the joints. Therefore, all the joints exhibited significantly decreased strength at both room temperature and high temperature compared with the base metal, with the joints fracturing in the NZs. Rotation rate exhibited no obvious effect on the tensile strength of the joints, but led to increased elongation as the result of the broadened NZs. The detailed microstructural examinations indicated that the welding thermomechanical effect broke up the near 3D amorphous Al2O3 netlike structure distributed at the Al grain boundaries, caused the coarsening of Al grains, and the agglomeration and crystallization of amorphous Al2O3, thereby resulting in the softening of the NZs and the reduction in the joint strength. Consequently, inhibiting the breakup and crystallization of 3D amorphous Al2O3 netlike structure is the key factor to improve the joint strength of the(B4C+Al2O3)/Al composite. | ZAN YuNing WANG BeiBei ZHOU YangTao JIA CunLei LIU ZhenYu WANG QuanZhao XIAO BoLv MA ZongYi | 2020 | Science China(Technological Sciences)2020，63，7： | 3 |
| 7 | A super pan-genomic landscape of rice显示文摘Pan-genomes from large natural populations can capture genetic diversity and reveal genomic complexity.Using de novo longread assembly,we generated a graph-based super pan-genome of rice consisting of a 251-accession panel comprising both cultivated and wild species of Asian and African rice.Our pan-genome reveals extensive structural variations(SVs)and gene presence/absence variations.Additionally,our pan-genome enables the accurate identification of nucleotide-binding leucine-rich repeat genes and characterization of their inter-and intraspecific diversity.Moreover,we uncovered grain weight-associated SVs which specify traits by affecting the expression of their nearby genes.We characterized genetic variants associated with submergence tolerance,seed shattering and plant architecture and found independent selection for a common set of genes that drove adaptation and domestication in Asian and African rice.This super pan-genome facilitates pinpointing of lineage-specific haplotypes for trait-associated genes and provides insights into the evolutionary events that have shaped the genomic architecture of various rice species. | Lianguang Shang Xiaoxia Li Huiying He Qiaoling Yuan Yanni Song Zhaoran Wei Hai Lin Min Hu Fengli Zhao Chao Zhang Yuhua Li Hongsheng Gao Tianyi Wang Xiangpei Liu Hong Zhang Ya Zhang Shuaimin Cao Xiaoman Yu Bintao Zhang Yong Zhang Yiqing Tan Mao Qin Cheng Ai Yingxue Yang Bin Zhang Zhiqiang Hu Hongru Wang Yang Lv Yuexing Wang Jie Ma Quan Wang Hongwei Lu Zhe Wu Shanlin Liu Zongyi Sun Hongliang Zhang Longbiao Guo Zichao Li Yongfeng Zhou Jiayang Li Zuofeng Zhu Guosheng Xiong Jue Ruan Qian Qian | 2022 | Cell Research2022，32，10： | 3 |
| 8 | HLY78 Attenuates Neuronal Apoptosis via the LRP6/GSK3β/β-Catenin Signaling Pathway After Subarachnoid Hemorrhage in Rats显示文摘Neuronal apoptosis is one of the essential mechanisms of early brain injury after subarachnoid hemorrhage(SAH).Recently,HLY78 has been shown to inhibit apoptosis in tumor cells and embryonic cells c aused by carbon ion radiation through activation of the Wnt/β-catenin pathway.This study was designed to explore the anti-apoptotic role of HLY78 in experimental SAH.The results demonstrated that HLY78 attenuated neuronal apoptosis and the neurological deficits after SAH through the activation of low-density lipoprotein receptor-related protein 6(LRP6),which subsequently increased the level of phosphorylated glycogen synthesis kinase 3 beta(p-GSK3β)(Ser9),β-catenin,and Bcl-2,accompanied by a decrease of p-β-catenin,Bax,and cleaved caspase 3.An LRP6 small-interfering ribonucleic acid reversed the effects of HLY78.In conclusion,HLY78 attenuates neuronal apoptosis and improves neurological deficits through the LRP6/GSK3β/β-catenin signaling pathway after SAH in rats.HLY78 is a promising therapeutic agent to attenuate early brain injury after SAH. | Xu Luo Lina Li Weilin Xu Yuan Cheng Zongyi Xie | 2020 | Neuroscience Bulletin2020，36，10： | 3 |
| 9 | Hardness, quench sensitivity, and electrical conductivity of 7xxx Al alloys with high Zn concentrations显示文摘In this study,7 xxx(Al-Zn-Mg-Cu)alloys with high Zn concentrations were fabricated by increasing the Zn contents of 7085 Al alloys.The hardness,quench sensitivity,and electrical conductivity of the alloys and a 7085 Al alloy under peak-aged state were studied.The high Zn concentration alloys had higherη′phase densities and lower quantities of Mg solid atoms than the 7085 Al alloy and thus exhibited higher hardness and electrical conductivity.The high Zn concentration alloys also exhibited slightly higher quench sensitivity than 7085 Al alloy,and the depth of the quenching layer of the alloy with 11.27 wt%Zn content reached 100 mm.This work confirmed that the novel 7 xxx alloy with high Zn concentration showed balanced performance,exhibiting enhanced hardness and conductivity and reasonable quench sensitivity compared with the 7085 commercial Al alloy. | PENG YingHao LIU ChongYu MA ZongYi JIANG HongJie HUANG HongFeng | 2020 | Science China(Technological Sciences)2020，63，6： | 3 |
| 10 | A NEW ANIMAL MODEL OF ERYTHROCYTE SENESCENCE: THE ALTERRATION OF SURFACE CHARGE AND THE RHEOLOGGICAL PROPERTIES OF ERRYTHROCYTE DRUING ITS LIFE SPAN显示文摘Based on Mohandas' work, a new animal model of red blood cell(RBC) synchronous senescence in a near normal physiological conditions was proposed. Using this model,we studied the changes of RBC surface charge with the aging process. The results showed that its surface charge decreased with RBC agingprocess. Nevertheless,the regulation of the changes was not linear during RBC aging. The indexes of (DI)d and (DI)or describing RBC rheological behaviours duringits aging process were measured with a new Ektacytometry. It is demonstrated thatboth the indexes decreased with RBC aging,but the relationship was not linear. Thecharacteristics of the indexes displayed a common regularity of smaller alterationsin the first half period of RBC life span and greater alterations in the latter periodof RBC life span. It was also shown that the regulation of the changes for each individual index were not alike. The alterations of RBC mechanical properties duringlife span maight result from the influence of RBC shape, the properties of cytoplasm and membrane viscoelasity and the other factors during RBC aging. | Wen Zongyao Song Lichua Lu Zhihong Sun Dagong(Department of Medical Physics, Beijing Medical University, Beijing 100083,China) Yan Zongyi(Department of Mechanics and Engineering SciencePeking University,Beijing 100871,China) Don Huanfu(Department of H | 1998 | Chinese Journal of Biomedical Engineering(English Edition)1998，7，2： | 3 |
| 11 | Background of crustal movement of Chinese mainland显示文摘Based on GPS data during May 1995-March 1998 of 12 IGS stations located in the Chinese mainland and its surrounding areas, the horizontal displacement rates of these IGS stations have been determined. The result can be available to study the background of the crustal tectonic motion in the chinese mainland. | Wenyao Zhu Zongyi Cheng Xiaoya Wang Yongqing Xiong | 2000 | Chinese Science Bulletin2000，45，6： | 3 |
| 12 | Friction stir welding of carbon nanotubes reinforced Al-Cu-Mg alloy composite plates显示文摘Carbon nanotubes(CNTs) reinforced Al-Cu-Mg composite plates of 2.2 mm in thickness after extrusion and T4 treatment were joined by friction stir welding(FSW) and the joint efficiency reaches 87%. There was no precipitate in both heat-affected zone(HAZ) and nugget zone(NZ) as a medium rotation rate of 800 rpm and a relative high travel speed of 100 mm min-1were used. In the NZ, FSW disarranged the alignment of CNTs to random orientation and dispersed CNT uniformly. The orientation of CNTs perpendicular to the tensile direction and the possible dissolution of solute clusters made the HAZ become the weakest zone in the joint leading to the failure in the HAZ. | Ke Zhao Zhenyu Liu Bolyu Xiao Zongyi Ma | 2017 | Journal of Materials Science & Technology2017，33，9： | 2 |
| 13 | Genome-wide analysis reveals selection for Chinese Rongchang pigs显示文摘Livestock have undergone domestication and consequently strong selective pressure on genes or genomic regions that control desirable traits. To identify selection signatures in the genome of Chinese Rongchang pigs, we generated a total of about 170 Gb of DNA sequence data with about 6.4-fold coverage for each of six female individuals. By combining these data with the publically available genome data of 10 Asian wild boars,we identified 449 protein-coding genes with selection signatures in Rongchang pigs, which are mainly involved in growth and hormone binding, nervous system development, and drug metabolism. The accelerated evolution of these genes may contribute to the dramatic phenotypic differences between Rongchang pigs and Chinese wild boars. This study illustrated how domestication and subsequent artificial selection have shaped patterns of genetic variation in Rongchang pigs and provides valuable genetic resources that can enhance the use of pigs in agricultural production and biomedical studies. | Lei CHEN Shilin TIAN Long JIN Zongyi GUO Dan ZHU Lan JING Tiandong CHE Qianzi TANG Siqing CHEN Liang ZHANG Tinghuan ZHANG Zuohua LIU Jinyong WANG Mingzhou LI | 2017 | Frontiers of Agricultural Science and Engineering2017，4，3： | 2 |
| 14 | A Novel Photothermal Nanocrystals of Cu_7S_4 Hollow Structure for Efficient Ablation of Cancer Cells显示文摘Cu2-x S nanocrystals(NCs), characterized by low cost, low toxicity, high stability and high photothermal conversion efficiency, provide promising platforms as photothermal agents. Herein, a novel twostep synthesis has been developed for Cu7S4 nanocrystals with hollow structure using the as-prepared copper nanoparticles as starting a solid precursor followed by hot-injection of sulfide source.The Cu7S4 NCs exhibit intense absorption band at Near-infrared(NIR) wavelengths due to localized surface plasmon resonance(LSPR)mode, which can effectively convert 980 nm-laser energy into heat.Moreover, the localized high temperature created by Cu7S4 NCs under NIR irradiation could result in efficient photothermal ablation(PTA) of cancer cells in vivo, demonstrating a novel and promising photothermal nanomaterials. | Guosheng Song Linbo Han Weiwei Zou Zhiyin Xiao Xiao Juan Huang Zongyi Qin Rujia Zou Junqing Hu | 2014 | Nano-Micro Letters2014，6，2： | 2 |
| 15 | Influence of acetone on nanostructure and electrochemical properties of interfacial synthesized polyaniline nanofibers显示文摘The growth of polyaniline(PANI) nano fi bers through interfacial polymerization can be well controlled by adding a small amount of acetone in the water/chloroform system. It was found that the polymerization rate became slower in the presence of acetone, yielding PANI nano fi bers with larger aspect ratios. The in fl uences of the acetone addition on the morphology, microstructure and properties of as-prepared PANI nano fi bers were studied by scanning electron microscope(FE-SEM), ultraviolet–visible spectra(UV–vis), Fourier transform infrared(FT-IR) and Raman spectroscopy, X-ray diffraction(XRD), thermogravity analysis(TGA), and electrical and electrochemical measurements. The experimental results showed that PANI nano fi bers prepared by using ammonium persulfate(APS) as an oxidant with acetone exhibited slower growth, the larger ratio of length to diameter, and higher crystallinity(2θ=6℃, 19℃, 26℃) than that without acetone, meanwhile remained larger yield of 11.23% and higher conductivity 1.8*10-2S/cm compared with that obtained by replacing APS with Fe Cl3. More importantly, these PANI nano fi bers exhibited better electrochemical behaviors, which bene fi tted from their high crystallinity and good conductivity. | Jianyun Zhao Zongyi Qin Tao Li Zhuozhan Li Zhe Zhou Meifang Zhu | 2015 | Progress in Natural Science:Materials International2015，25，4： | 2 |
| 16 | Subcellular distribution and chemical forms of cadmium in Bechmeria nivea (L.) Gaud.显示文摘 | Xin Wang Yunguo Liu Guangming Zeng Liyuan Chai Xiaochen Song Zongyi Min Xin Xiao | 2007 | Environmental and Experimental Botany2007，，3： | 2 |
| 17 | Research on Enhancing the Functions of Animation in Web 3D显示文摘VRML offers powerful tool generating 3D scene and realizing real time interactive animation on Web.This paper briefly introduces the related techniques of implementing interactive animation in Web 3D,focusing on how to use JavaScript to create Script node for extending VRML functions.This very useful for virtual product design,product performance simulation,virtual assembly and remote education. | Feng Kaiping Zuo Zongyi Guangdong University of Technology, Guangzhou 510090 | 2002 | Computer Aided Drafting,Design and Manufacturing2002，12，2： | 2 |
| 18 | Identification of blood-brain barrier function following subarachnoid hemorrhage in rats at different stages显示文摘BACKGROUND: Recent studies have indicated that blood-brain barrier (BBB) disruption following su- barachnoid hemorrhage (SAH) significantly correlates with the development of brain injury and poor prognosis of patients subjected to SAH. OBJECTIVE: To investigate both functional and structural changes related to BBB in various phases after SAH in rats through quantitative and qualitative methods. DESIGN, TIME AND SETTING: This experiment, a completely randomized design and controlled ex- periment, was performed at the Department of Neurosurgery, the Second Affiliated Hospital of Chongqing University of Medical Sciences from June 2006 to March 2007. MATERIALS: A total of 128 female, healthy, Sprague-Dawley rats were selected for this study. Main reagents and instruments: Evans Blue dye (Sigma Company, USA), fluorescence spectrophotometer (Shimadzu Company, Japan), and transmission electron microscope (Olympus Company, Japan). METHODS: The included 128 rats were randomly divided into two groups: sham-operated group (n = 16) and SAH group (n = 112). Rats in the SAH group were divided into seven subgroups: 6, 12, 24, 36, 48, 60, and 72 hours after SAH (16 rats for each time point). Experimental SAH was induced by blood injection into the pre-chiasmatic cistern (300 μL). The sham-operated group received an equivalent volume of normal saline solution (300 μL) injected into the subarachnoid space. MAIN OUTCOME MEASURES: Brain tissue water content was determined by the wet-dry method. BBB permeability in the cerebral cortex was determined by Evans Blue dye and fluorescent spectrophotometer. The ultrastructural changes in BBB were observed with transmission electron microscope. RESULTS: Compared with the sham-operated group, SAH induced a significant increase in brain water content between 24 and 60 hours (F = 888.32, P < 0.05). Brain water content increased to a maximum by 36 hours after SAH, normalizing by 72 hours. Evans Blue content in the cerebral cortex of SAH group rats began to increase by 24 hours after SAH, peaked at 36 hours (F = 896.72, P < 0.05), and significantly de- creased at later observation times, finally normalizing by 72 hours after SAH (P > 0.05). Electron micros- copy demonstrated only a mild perivascular edema at 24 hours after SAH. By 36 hours, a notable perivascu- lar edema was associated with a collapse of the capillary. Astrocytic endfeet surrounding the capillary were prominently swollen in the edematous areas. The above-mentioned abnormal ultrastructural changes in the BBB were reversed by 72 hours after SAH. No obvious morphological changes in the BBB were detected in the sham-operated rats. CONCLUSION: These results directly suggest that SAH could induce rapid changes in BBB function and structure during the acute phases of BBB breakdown. Moreover, these dynamic alterations further indicate that the BBB possesses the ability to self-repair. BBB dysfunction plays an important role in the development of vasogenic edema and unfavorable outcome. | Zongyi Xie Weiwei Shen Ying Ma Yuan Cheng | 2008 | Neural Regeneration Research2008，3，4： | 2 |
| 19 | Effect of Particle Size on Mechanical Properties and Fracture Behaviors of Age-Hardening SiC/Al–Zn–Mg–Cu Composites显示文摘15 vol.% SiC/Al-6.5Zn-2.8 Mg-1.7 Cu(wt%) composites with varying particle sizes(3.5, 7.0, 14 and 20 μm), i.e., C-3.5, C-7.0, C-14, and C-20, respectively, were fabricated by powder metallurgy(PM) method and subjected to microstructural examination. The effect of particle size on mechanical properties and fracture behaviors of the T6-treated composites was revealed and analyzed in detail. Element distribution and precipitates variations in the composites with varying particle sizes were emphatically considered. Results indicated that both tensile strength and plasticity of the T6-treated composites increased first and then decreased with particle size decreasing. The C-7.0 composite simultaneously exhibited the highest ultimate tensile strength(UTS) of 686 MPa and best elongation(El.) of 3.1%. The smaller-sized SiC particle would introduce more oxide impurities, which would react with the alloying element in the matrix to cause Mg segregation and depletion. According to strengthening mechanism analysis, the weakening of precipitation strengthening in the T6-treated C-3.5 composite was the main cause of the lower tensile strength. Additionally, the larger SiC particle, the more likely to fracture, especially in the composites with high yield strength. For the T6-treated C-20 composites, more than 75% SiC particles were broken up, resulting in the lowest plasticity. As decreasing particle size, the fracture behaviors of the T6-treated composites would change from particle fracture to matrix alloy fracture gradually. | Guonan Ma Dong Wang Bolv Xiao Zongyi Ma | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，10： | 2 |
| 20 | Outdoor recognition at a distance by fusing gait and face 显示文摘 | LIU Zongyi SARKAR S | 2007 | Image Vision Computing2007，25，6： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员