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| 1 | Isolation and initial characterization of GW5, a major QTL associated with rice grain width and weight显示文摘谷物重量是庄稼谷物产量的一个主要决定因素并且被自然地发生的量的特点 loci (QTL ) 控制。我们更早识别了控制米饭谷物宽度和重量的主要 QTL, GW5,它在米饭染色体 5 上被印射到一个再结合热点。获得 GW5 怎么控制米饭谷物宽度的更好的理解,我们进行了这个地点的好印射并且揭开在米饭栽培变种 Asominori 与增加的谷物宽度联系的 1 212-bp 删除,与苗条谷物米饭 IR24 比较。另外, 46 米饭栽培变种的 genotyping 分析表明这删除高度与谷物宽度显型被相关,建议 GW5 删除可能在米饭驯服期间被选择了。GW5 编码对原子核局部性的 144 氨基酸的新奇原子蛋白质。而且,我们证明 GW5 身体上在酵母与 polyubiquitin 交往二混血儿的试金。一起,我们的结果建议 GW5 代表主要 QTL 内在的米饭宽度和重量,并且它多半在 ubiquitin-proteasome 小径行动在种子开发期间调整房间分割。这研究提供新奇卓见进控制米饭谷物开发的分子的机制并且建议 GW5 能为庄稼的产量很高的繁殖用作一个潜在的工具。 | Jianfeng Weng Suhai Gu Xiangyuan Wan He Gao Tao Guo Ning Su Cailin Lei Xin Zhang Zhijun Cheng Xiuping Guo Jiulin Wang Ling Jiang Huqu Zhai Jianmin Wan | 2008 | Cell Research2008,18,12: | 248 |
| 2 | Failure behavior of a rock-coal-rock combined body with a weak coal interlayer显示文摘Using an MTS 815 testing machine,the deformation and failure behavior of a rock-coal-rock combined body containing a weak coal interlayer has been investigated and described in this paper.Uniaxial loading leads to the appearance of mixed cracks in the coal body which induce instability and lead to bursts in coal.If the mixed crack propagates at a sufficiently high speed to carry enough energy to damage the roof rock,then coal and rock bursts may occur-this is the main mechanism whereby coal bumps or coal and rock bursts occur after excavation unloading.With increasing confining pressure,the failure strength of a rock-coal-rock combined body gradually increases,and the failure mechanism of the coal interlayer also changes,from mixed crack damage under low confining pressures,to parallel crack damage under medium confining pressures,and finally to single shear crack damage or integral mixed section damage under high confining pressures.In general,it is shown that a weak coal interlayer changes the form of overall coal damage in a rock-coal-rock combined body and reduces the overall stability of a coal body.Therefore,the whole failure behavior of a rock-coal-rock combined body in large cutting height working faces is controlled by these mechanisms. | Zuo Jianping Wang Zhaofeng Zhou Hongwei Pei Jianliang Liu Jianfeng | 2013 | International Journal of Mining Science and Technology2013,23,6: | 32 |
| 3 | Orbit determination for Chang'E-2 lunar probe and evaluation of lunar gravity models显示文摘The Unified S-Band(USB) ranging/Doppler system and the Very Long Baseline Interferometry(VLBI) system as the ground tracking system jointly supported the lunar orbit capture of both Chang'E-2(CE-2) and Chang'E-1(CE-1) missions.The tracking system is also responsible for providing precise orbits for scientific data processing.New VLBI equipment and data processing strategies have been proposed based on CE-1 experiences and implemented for CE-2.In this work the role VLBI tracking data played was reassessed through precision orbit determination(POD) experiments for CE-2.Significant improvement in terms of both VLBI delay and delay rate data accuracy was achieved with the noise level of X-band band-width synthesis delay data reaching 0.2-0.3 ns.Short-arc orbit determination experiments showed that the combination of only 15 min's range and VLBI data was able to improve the accuracy of 3 h's orbit using range data only by a 1-1.5 order of magnitude,confirming a similar conclusion for CE-1.Moreover,because of the accuracy improvement,VLBI data was able to contribute to CE-2's long-arc POD especially in the along-track and orbital normal directions.Orbital accuracy was assessed through the orbital overlapping analysis(2 h arc overlapping for 18 h POD arc).Compared with about 100 m position error of CE-1's 200 km 200 km lunar orbit,for CE-2's 100 km 100 km lunar orbit,the position errors were better than 31 and 6 m in the radial direction,and for CE-2's 15 km 100 km orbit,the position errors were better than 45 and 12 m in the radial direction.In addition,in trying to analyze the Delta Differential One-Way Ranging(DOR) experiments data we concluded that the accuracy of DOR delay was dramatically improved with the noise level better than 0.1 ns and systematic errors better calibrated,and the Short-arc POD tests with DOR data showed excellent results.Although unable to support the development of an independent lunar gravity model,the tracking data of CE-2 provided evaluations of different lunar gravity models through POD.It is found that for the 100 km 100 km lunar orbit,with a degree and order expansion up to 165,JPL's gravity model LP165P did not show noticeable improvement over Japan's SGM series models(100×100),but for the 15 km×100 km lunar orbit,a higher degree-order model can significantly improve the orbit accuracy. | Li PeiJia Hu XiaoGong Huang Yong Wang GuangLi Jiang DongRong Zhang XiuZhong Cao JianFeng Xin Nan | 2012 | Science China(Physics,Mechanics & Astronomy)2012,55,3: | 30 |
| 4 | Identification of a Stable Quantitative Trait Locus for Percentage Grains with White Chalkiness in Rice (Oryza sativa)显示文摘High chalkiness is a major problem in many rice-producing areas of the world, especially in hybrid rice (Oryza sativa L.) in China. We previously showed a major quantitative trait locus for the percentage of grains with white chalkiness (QTLqPGWC-8) in the interval G1149-R727 on chromosome 8 using a chromosome segment substitution line (CSSL). Here, we selected the line-CSSL50 harboring the QTLqPGWC-8 allele from the CSSLs derived from a cross between Asominori (as a recurrent parent) and IR24 (as a donor parent), which had higher percentage chalkiness, markedly different from that of Asominori. There were also significant differences in starch granules, appearance of amylose content (AAC) and milling qualities between Asominori and CSSL50, but not in grain size or thousand grain weight (TGW). The BC4F2 and BC4F3 populations from a cross between CSSL50 and Asominori were used for fine mapping of qPGWC-8. We narrowed down the location of this QTL to a 142 kb region between Indel markers 8G-7 and 8G-9. QTLqPGWC-8 accounted for 50.9% of the difference in PGWC between the parents. The markers tightly linked to qPGWC-8 should facilitate cloning of the gene underlying this QTL and will be of value for marker-assisted selection in breeding rice varieties with better grain quality. | Tao Guo Xiaolu Liu Xiangyuan Wan Jianfeng Weng Shijia Liu Xi Liu Mingjiang Chen Jingjing Li Ning Su Fuqing Wu Zhijun Cheng Xiuping Guo Cailin Lei Jiulin Wang Ling jiang Jianmin Wan | 2011 | Journal of Integrative Plant Biology2011,53,8: | 25 |
| 5 | Effect of myosin heavy chain composition of muscles on meat quality in Laiwu pigs and Duroc显示文摘In order to explain the mechanism of high meat quality in Laiwu pigs and investigate the relation between myosin heavy chains (MyHC) composition and meat quality, meat quality analysis was conducted and mRNA expression of MyHC I, IIa, IIx, IIb was quantified by real-time fluorescence PCR in longissimus muscle (LM) and semimembranous muscle of Laiwu pigs and Duroc. The result indicated that, compared with Duroc, mRNA expression of MyHC IIa, IIx in LM and semimembranous muscle of Laiwu pigs was significantly increased, mRNA expression of MyHC IIb was dramatically decreased. However, the expression of MyHC I was not significantly affected by breeds. The correlation between mRNA expression of MyHC I, IIa, IIx in LM and meat color, pH value, marbling, intramuscular fat content was positive, but shear value of LM was negative. The relation between MyHC IIb mRNA expression and marbling, intramuscular fat content was dramatically negative, whereas shear value was strikingly positive, as well as fiber diameter, but without reaching statistical significance. Therefore, the composition of MyHC I, IIa, IIx, IIb affected meat quality, furthermore, expression of MyHC I, IIa, IIx, IIb mRNA prominently influenced meat characteristics, especially edible quality of muscle, suggesting that mRNA expression level of MyHC I, IIa, IIx, IIb can exactly and impersonally estimate meat quality. | HU HongMei, WANG JiYing, ZHU RongSheng, GUO JianFeng & WU Ying Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China | 2008 | Science China(Life Sciences)2008,51,2: | 26 |
| 6 | Preliminary Scientific Results of Chang'E-1 Lunar Orbiter:Based on Payloads Detection Data in the First Phase显示文摘Chang'E-1 lunar Orbiter was launched by Long March 3A rocket from Xichang Satel-lite Launch Center at 18:05BT(Beijing Time) Oct.24,2007.It is the first step of its ambitious three-stage moon program,a new milestone in the Chinese space exploration history.The primary science objectives of Chang'E-1 lunar orbiter are to obtain three-Dimension(3D) stereo images of the lunar surface,to analyze the distribution and abundance of elements on the surface,to investigate the thickness of lunar soil,evaluate helium-3 resources and other characteristics,and to detect the space environment around the moon.To achieve the above four mission objectives,eight sets of scientific instruments are chosen as the payloads of the lunar orbiter,including a CCD stereo camera(CCD),a Sagnac-based interferometer spectrometer(ⅡM),a Laser Altimeter(LAM),a Microwave Radiometer(MRM),a Gamma-Ray Spectrometer(GRS),an X-ray spectrometer(XRS),a High-Energy Particle Detector(HPD),and two Solar Wind Ion Detectors(SWID).The detected data of the payloads show that all payloads work well.This paper introduces the status of payloads in the first phase and preliminary scientific results. | OUYANG Ziyuan JIANG Jingshan LI Chunlai SUN Huixian ZOU Yongliao LIU Jianzhong LIU Jianjun ZHAO Baochang REN Xin YANG Jianfeng ZHANG Wenxi WANG Jianyu MOU Lingli CHANG Jin ZHANG Liyan WANG Huanyu LI Yongquan ZHANG Xiaohui ZHENG Yongchun WANG Shijin BIAN Wei | 2008 | 空间科学学报2008,28,5: | 24 |
| 7 | The porosity origin of dolostone reservoirs in the Tarim, Sichuan and Ordos basins and its implication to reservoir prediction显示文摘Origin of dolostone remained a controversial subject, although numerous dolomitization models had been proposed to date. Because of the dolomitization's potential to be hydrocarbon reservoirs, one debatable issue was the role of dolomitization in porosity construction or destruction. Based upon case studies of dolostone reservoirs in various geological settings such as evaporative tidal flat(Ordos Basin, NW China), evaporative platform(Sichuan Basin, SW China), and burial and hydrothermal diagenesis(Tarim Basin, NW China), here we systematically discuss the origin of porosity in dolostone reservoirs. Contrary to traditional concepts, which regarded dolomitization as a significant mechanism for porosity creation, we found two dominant factors controlling reservoir development in dolostones, i.e., porosity inherited from precursor carbonates and porosity resulted from post-dolomitization dissolution. Actually, dolomitization rarely had a notable effect on porosity creation but rather in many cases destroyed pre-existing porosity such as saddle dolostone precipitation in vugs and fractures. Porosity in dolostones associated with evaporative tidal flat or evaporative platform was generally created by subaerial dissolution of evaporites and/or undolomitized components. Porosity in burial dolostones was inherited mostly from precursor carbonates, which could be enlarged due to subsequent dissolution. Intercrystalline porosity in hydrothermal dolostones was either formed during dolomitization or inherited from precursor carbonates, whereas dissolution-enlarged intercrystalline pores and/or vugs were usually interpreted to be the result of hydrothermal alteration. These understandings on dolostone porosity shed light on reservoir prediction. Dolostone reservoirs associated with evaporative tidal flat were laterally distributed as banded or quasi-stratified shapes in evaporite-bearing dolostones, and vertically presented as multi-interval patterns on tops of shallowing-upward cycles. Dolostone reservoirs associated with evaporative platform commonly occurred along epiplatforms or beneath evaporite beds, and vertically presented as multi-interval patterns in dolostones and/or evaporite-bearing dolostones of reef/shoal facies. Constrained by primary sedimentary facies, burial dolostone reservoirs were distributed in dolomitized, porous sediments of reef/shoal facies, and occurred vertically as multi-interval patterns in crystalline dolostones on tops of shallowing-upward cycles. Hydrothermal dolomitization was obviously controlled by conduits(e.g., faults, unconformities), along which lenticular reservoirs could develop. | ZHAO WenZhi SHEN AnJiang ZHENG JianFeng QIAO ZhanFeng WANG XiaoFang LU JunMing | 2014 | Science China Earth Sciences2014,57,10: | 23 |
| 8 | Comparison of Chlorophyll and Photosynthesis Parameters of Floating and Attached Ulva prolifera显示文摘In mid-May 2008 a serious green tide caused mainly by floating Ulva prolifera(Mller) J.Agardh(Chlorophyta,Ulvales) thalli struck the coastal area of Qingdao,China.To understand the present physiological conditions of the floating alga,in this work both laboratory and field investigations were conducted on the floating U.prolifera thalli in comparison with the attached U.prolifera thalli collected from the area.The floating thalli of three distinctively different colors and attached thalli at three different stages of sporangium formation process were characterized under a microscope,while their photosynthetic parameters were determined with chlorophyll fluorescence technology.On the other hand,the sporangium formation status of the floating U.prolifera thalli was surveyed both in the laboratory and in the field.Comparisons showed that both of the paired morphological characteristics and the paired physiological parameters of the floating and attached U.prolifera thalli were consistent.Furthermore,some spores were confirmed in the field and some motile particles were found within the floating thalli.These results suggest that the floating U.prolifera thalli with different colors could be at different stages of sporangium formation.However,our results also showed that the floating alga thalli have only a limited reproductive potential.This might limit the duration and the further geographic expansion of the green algal bloom. | Apeng Lin Songdong Shen Guangce Wang Qianqian Yi Hongjin Qiao Jianfeng Niu Guanghua Pan | 2011 | Journal of Integrative Plant Biology2011,53,1: | 20 |
| 9 | Pathway mining-based integration of critical enzyme parts for de novo biosynthesis of steviolglycosides sweetener in Escherichia coli显示文摘 | Jianfeng Wang Shiyuan Li Zhiqiang Xiong YongWang | 2016 | Cell Research2016,26,2: | 18 |
| 10 | Sensitive High Resolution Ion Micro-Probe U-Pb Zircon Geochronology and Geochemistry of Mafic Rocks from the Pulan-Xiangquanhe Ophiolite,Tibet:Constraints on the Evolution of the Neo-tethys显示文摘在西藏的西方的 Yarlung Tsangpo 缝术地区的 Pulan-Xiangquanhe ophiolite 详细为它的地球化学,地球年代学,和构造含意被调查。敏感高分辨率离子标明日期的微探查的锆石 U-Pb 表明在从 Xugugab, Mapam Yum 公司和 La'nga 公司的三个地点的 ophiolite 的辉绿岩在 122.3 点是过时的 ?A?????????????? 畐慬? 楘湡照慵桮? 传桰潩楬整?? | XIA Bin LI Jianfeng XU Lifeng WANG Ran YANG Zhiqing | 2011 | Acta Geologica Sinica(English Edition)2011,85,4: | 16 |
| 11 | Pyrite Surface after ThiobaciUusferrooxidans Leaching at 30℃显示文摘In order to investigate the effect of Thiobacillus ferrooxidans on the oxidation of pyrite, two parallel experiments, which employed H2SO4 solutions and acidic solutions inoculated with Thiobacillus ferrooxidans, were designed and carried out at 30℃. The initial pH of the two solutions was adjusted to 2.5 by dropwise addition of concentrated sulphuric acid. The surfaces of pyrite before exposure to leaching solutions and after exposure to the H2SO4 solutions and acidic solutions inoculated with Thiobacillus ferrooxidans were observed by scanning electron microscopy (SEM). There were a variety of erosion patterns by Thiobacillus ferrooxidans on the bio-leached pyrite surfaces. A conclusion can be drawn that the oxidation of pyrite might have been caused by erosion of the surfaces. Attachment of the bacteria to pyrite surfaces resulted in erosion pits, leading to the oxidation of pyrite. It is possible that the direct mechanism plays the most important role in the oxidation of pyrite. The changes in iron ion concentrations of both the experimental solutions with time suggest that Thiobacillus ferrooxidans can enhance greatly the oxidation of pyrite. | LU Jianjun LU Xiancai WANG Rucheng LI Juan ZHU Changjian GAO Jianfeng | 2006 | Acta Geologica Sinica(English Edition)2006,80,3: | 16 |
| 12 | Mobility Analysis of the Deployable Structure of SLE Based on Screw Theory显示文摘Scissor-like element has a number of applications in deployable structures such as planar deployable structure (PDS) and ring deployable structure(RDS). However, the mobility analysis of the multi-loop deployable structures is made more difficulty by the traditional mobility formula, because the deployable structure is a very complex structure with multi-loop. Therefore, On the basis of screw theory, the calculation method of mobility of deployable structures of SLE is thoroughly discussed. In order to investigate the mobility, decomposing and composing structures(DCS) are developed, and the basic units are able to be obtained. On the basis of the deployable structures' geometrical characteristics, there exists a closed-loop quadrilateral structure and some non-closed-loop quadrilateral structures in PDS. Also, a six legs parallel structure is present in RDS. The basic units' mobility can be solved by both the methods of screw theory and topology constraint graphs. Then, composing the related basic units, the formula of planar deployable structures' mobility can be built and solves the mobility of ring deployable structure. The analysis method solves the mobility analysis of the multi-loop deployable structures which is difficulty by the traditional method, and plays an important role in further research about the mobility of other complex deployable structures. | SUN Yuantao WANG Sanmin LI Jianfeng ZHI Changjian | 2013 | Chinese Journal of Mechanical Engineering2013,26,4: | 14 |
| 13 | Comparative biomechanical study of reversed less invasive stabilization system and proximal femoral nail antirotation for unstable intertrochanteric fractures显示文摘 | Chen Ying Liu Shouyao Lin Peng Wang Yunting Wang Jinhui Tao Jianfeng Cai Rongrong | 2014 | Chinese Medical Journal2014,,23: | 13 |
| 14 | Effect of stimulating acupoint Guanyuan(CV 4) on lower back pain by burning moxa heat for different time lengths: a randomized controlled clinical trial显示文摘OBJECTIVE: To investigate the effect of different heat-stimulating time lengths on lower back pain.METHODS: Forty participants were randomly assigned to four groups of various heating time lengths. The short heating time length group(SL),moderate heating time length group(ML), and long heating time length group(LL) respectively received 15, 30, and 60 min of moxibustion therapy stimulating the acupoint Guanyuan(CV 4). The conventional acupuncture group(CA) received needle acupuncture treatment as a control group. The participants were treated continuously over a 2-week treatment period for a total of 10 sessions, with five sessions given per week. Participants were assessed weekly by blinded assessors, using the visual analogue scale(VAS) and Roland Morris Questionnaire(RMQ).RESULTS: The VAS and RMQ scores reduced in all four groups during treatment. There were significant differences in VAS scores(P < 0.01) and RMQ scores(P < 0.01) between before treatment and after 2 weeks of treatment in the LL group. After treatment, the LL group reported significantly lower VAS scores compared with the CA group, ML group,and SL group(P < 0.05).CONCLUSION: The long and moderate lengths of heat-stimulating time of 30 and 60 min may be more effective for relieving lower back pain than that of short stimulating time lengths. | Xu Jianfeng Lin Ruizhu Wu Yongli Wang Yingxu Liu Jian Zhang Yanling Zhang Yuequan Xi Chaolei Wu Qiang Li Xinjian | 2015 | Journal of Traditional Chinese Medicine2015,35,1: | 13 |
| 15 | Multi-area Generation-reserve Joint Dispatch Approach Considering Wind Power Cross-regional Accommodation显示文摘This paper presents a study on how to accommodate wind power into multiple regions,while simultaneously implementing economic and reliable dispatch for multi-area power system operation.The focus is on quantifying the operational risk brought by wind power uncertainty and at the same time accommodating wind power by coordinating multi-area generation and reserve resources.The reserve requirement of each area is calculated based on two indexes,namely,loss of load probability and wind spillage probability.Then,a generation-reserve cooptimization dispatch model that factors cross-regional wind power accommodation is proposed.The transmission margin and network security constraints of tie-lines are considered to systematically allocate reserve resources for all areas.Finally,optimality condition decomposition is used to decompose the dispatching model to achieve relatively independent regional scheduling,and to get the global optimization result.The reasonableness and effectiveness of the proposed approach is validated by a 6-bus 2-area test system and a 236-bus interconnected system. | Ming Zhou Mu Wang Jianfeng Li Gengyin Li | 2017 | CSEE Journal of Power and Energy Systems2017,3,1: | 12 |
| 16 | Geochemical Characteristics and Geological Significance of Early Permian Baya'ertuhushuo Gabbro in South Great Xing'an Range显示文摘领域地质的调查和 geochemical 分析在南方伟人 Xing'an 在 Baya'ertuhushuo 斑粝岩上被执行范围。当以前想了,领域调查表明斑粝岩是 magmatic 侵入而非一间 ophiolite 套房的一个部件。标明日期的诱导地联合的血浆团光谱学(LA-ICP-MS ) U-Pb 显示的锆石激光脱离斑粝岩在 274275 妈,被形成就作为 Dashizhai 形成(P1d ) 的普遍暴烈的岩石,在学习区域的 monzogranites 和 miarolitic 碱长石花岗石。斑粝岩有在 47.23 wt% 之间的 SiO2 内容,分别地, 50.17 wt% ,高 MgO 和 FeOT 6.9511.29 满足 wt% 和 7.3212.24 wt% ,它在 SiO2-K2O 图属于 low-K tholeiitic 系列。使球粒状陨石正常化的稀土元素元素(REE ) 模式和斑粝岩的原始使披风正常化的蜘蛛图除了大离子亲石元素元素(LILE ) 的丰富类似于正常海中央理兹暗岩(N-MORB ) 的那些,例如 Rb, Ba 和 K。在踪迹元素构造的歧视的图,样品主要也在 situ Lu-Hf 同位素的分析在 N-MORB 领域,和锆石里被阴谋显示斑粝岩从弄空的披风发源。通过 geochemical 特征的合成研究和 Baya'ertuhushuo 斑粝岩的 petrogenesis ,在区域的 Dashizhai 形成和 granitoids 的暴烈的岩石,在 Xilinhot-Xiwuqi 区域的早二叠的 magmatism 在岩流圈 upwelling 的构造背景形成了,这被建议,它被 subducted 的打破离开引起Paleo亚洲的海洋平板。 | LIU Jianfeng CHI Xiaoguo ZHAO Zhi ZHANG Xingzhou MA Zhihong WANG Tiefu HU Zhaochu | 2011 | Acta Geologica Sinica(English Edition)2011,85,1: | 12 |
| 17 | A RISK ASSESSMENT METHOD OF THE WIRELESS NETWORK SECURITY显示文摘The core of network security is the risk assessment. In this letter,a risk assessment method is introduced to estimate the wireless network security. The method,which combines Analytic Hier-archy Process (AHP) method and fuzzy logical method,is applied to the risk assessment. Fuzzy logical method is applied to judge the important degree of each factor in the aspects of the probability,the influence and the uncontrollability,not to directly judge the important degree itself. The risk as-sessment is carved up 3 layers applying AHP method,the sort weight of the third layer is calculated by fuzzy logical method. Finally,the important degree is calculated by AHP method. By comparing the important degree of each factor,the risk which can be controlled by taking measures is known. The study of the case shows that the method can be easily used to the risk assessment of the wireless network security and its results conform to the actual situation. | Zhao Dongmei Wang Changguang Ma Jianfeng | 2007 | Journal of Electronics(China)2007,24,3: | 11 |
| 18 | Chang'E-1 Lunar Mission:An Overview and Primary Science Results显示文摘Chang'E-1 is the first lunar mission in China,which was successfully launched on Oct.24th,2007.It was guided to crash on the Moon on March 1,2009,at 52.36°E,1.50°S,in the north of Mare Fecunditatis.The total mission lasted 495 days,exceeding the designed life-span about four months.1.37Terabytes raw data was received from Chang'E-1.It was then processed into 4Terabytes science data at different levels.A series of science results have been achieved by analyzing and applicating these data,especially 'global image of the Moon of China's first lunar exploration mission'.Four scientific goals of Chang'E-1 have been achieved.It provides abundant materials for the research of lunar sciences and cosmochemistry.Meanwhile these results will serve for China's future lunar missions. | Ouyang Ziyuan Li Chunlai Lu Chang Liu Jianzhong Zou Yongliao Zhang Hongbo Jianjun Zuo Wei Su Yah Wen Weibin Bian Wei Zhao Baochang Wang Jianyu Yang Jianfeng Chang Jin Wang Huanyu Zhang Xiaohui Wang Shijin Wang Min Ren Xin Mu Lingli Kong Deqing Wang Xiaoqian Wang Fang Geng Liang Zhang Zhoubin Zheng Lei Zhu Xinying Zheng Yongchun Li Junduo Zou Xiaoduan Xu Chun Shi Shuobiao Gao Yifei Gao Guannan | 2010 | 空间科学学报2010,30,5: | 11 |
| 19 | PERFORMANCE ANALYSIS AND KINEMATIC DESIGN OF PURE TRANSLATIONAL PARALLEL MECHANISM WITH VERTICAL GUIDE-WAYS显示文摘表演分析和 3-PUU 的运动学的设计有垂直指南方法的纯翻译平行机制被调查。二个新奇表演索引,批评滑块击和工作区的主要的节区域,被定义;二个另外的索引的表情,即全球灵巧和全球力量转移比率基于工作区的主要的节被修订。用这些索引,性能变化对机制的维的参数的变化详细被调查,对性能索引的变化趋势的图形的描述被说明。借助于这些获得的图形的描述,为 3-PUU 的运动学的参数有更好的特征的纯翻译平行机制能直接被获得。 | LI Jianfeng WANG Xinhua FEI Renyuan LIU Dezhong FAN Jinhong | 2006 | Chinese Journal of Mechanical Engineering2006,19,2: | 10 |
| 20 | Centimeter-scale-diameter Co-based bulk metallic glasses with fracture strength exceeding 5000 MPa显示文摘Co48-xFexCr15Mo14C15B6Er2 (x = 2.5 and 5) bulk metallic glasses (BMGs) with critical size (dc) up to 15 mm in diameter were synthesized by copper mold casting. Co43Fe5Cr15Mo14C15B6Er2 BMG has a wide supercooled liquid region (84 K) and ultrahigh fracture strength exceeding 5000 MPa,which is the highest value for reported metallic glasses with dc exceeding 1 cm. Furthermore,the Poisson ratio,Young modulus,shear modulus and bulk modulus of this alloy were evaluated to be 0.31,217 GPa,82 GPa and 214 GPa,respectively. The ideal configurational entropy of Co48-xFexCr15Mo14C15B6Er2 (x = 0 and 5) has been calculated. The introduction of the similar element Fe in the Fe-free Co-Cr-Mo-C-B-Er alloy will be beneficial to increasing the ideal config-urational entropy and depressing the critical cooling rate to achieve greater glass-forming ability. The combination of superior glass-forming ability and ultrahigh fracture strength makes the present Co48-xFexCr15Mo14C15B6Er2 (x = 2.5 and 5) BMGs promising candidates as advanced structural materials. | ZHANG Tao YANG Qin JI YunFei LI Ran PANG ShuJie WANG JianFeng XU Tao | 2011 | Chinese Science Bulletin2011,56,36: | 10 |