|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Soil pH impact on microbial tetraether lipids and terrestrial input index (BIT) in China显示文摘The distributions of microbial tetraether lipids i.e. glycerol dialkyl glycerol tetraethers (GDGTs) were investigated in a variety of Chinese soils featured by a wide range of pH values in different climate zones. The bacterial branched GDGTs and archaeal isoprenoid GDGTs were found to be widely distributed in Chinese soils and their relative abundance was controlled primarily by soil pH. The bacterial bGDGTs usually dominate over archaeal iGDGTs in abundance when the soil pH is below 8.0. However archaeal iGDGTs become dominant and the abundance of halophilic archaea characterized by GDGT V without cyclopentyl ring increases dramatically in the alkaline soil with pH greater than 8.0. The relative abundance of archaeal iGDGTs to bacterial bGDGTs was defined here as RAI index. The RAI index decreases with elevated soil pH and a linear correlation is found between them indicating that the relative abundance of archaeal iGDGTs to bacterial bGDGTs increases with increased pH. The RAI index thus could be a novel proxy of the pH values of paleosol. The terrestrial input index BIT (Branched and Isoprenoid Tetraethers Index) decreases with increased soil pH suggesting that soil pH should be taken into consideration when the terrestrial contribution to marine sediments is estimated by BIT index. Moreover the TEX86 index cannot be used to reconstruct sea surface temperature in the sediments featured by a large terrestrial input. | YANG Huan DING WeiHua WANG JinXiang JIN ChengSheng HE GangQiang QIN YangMin XIE ShuCheng | 2012 | Science China Earth Sciences2012，55，2： | 19 |
| 2 | Structure of a Bioactive Fructan from the Root of Cyathula officinalis显示文摘The structure of a bioactive fructan RCP isolated from the traditional Chinese medicinal herb Cyathula officinalis Kuan was determined by NMR, methylation, reductive-cleavage and GC-MS analyses. It was a highly branched fructan possessing a (2→1)-linked β-D-fructofuranosyl (Fruf) backbone with (2→6)-linked β-D-Fruf side chains, belonging to neokestose family. Of the 93.17% β-D-Fruf residues, 24.15% was terminal, 26.24% was 1-linked, 20.46% was 6-linked, and 22.32% was 1,6-linked. Of the 6.83% α-D-glucopyranosyl (Glcp) residues, 2.14% was terminal and 4.69% was 6-linked. A structural model was postulated for a degree of polymerization (DP) of 15. | LIUYing-Hua HEKai-Ze YANGMin MENGYi-Wen PUQiang | 2004 | Acta Botanica Sinica2004，46，9： | 10 |
| 3 | Determination of trophic relationships within a Bohai Bay food web using stable δ^(15)N and δ^(13)C analysis显示文摘This study measured stable carbon and nitro- gen isotope ratios in phytoplankton, zooplankton, five inver- tebrates species, eight fishes species and three seabirds spe- cies collected in Bohai Bay. δ 13C ranged from ?25.38‰ to ?11.08‰ showing a relative low enrichment in the food web from Bohai Bay. The mean δ 13C of mullet is higher than that of other organisms, and this might be due to that mullet is migration fish and feeds mainly on inshore sources. δ 15N ranged from 4.08‰ to 13.98‰, and showed a step-wise en- richment with trophic level of 3.8‰. The δ 15N enrichment factor was used to construct an isotopic food web model to establish trophic relationships within this marine food web. According to this model, exact trophic levels of all organisms were estimated as 1.46?2.10, 1.91?3.32, 2.55?4.23 and 2.98?4.28 for plankton, invertebrates, fishes, and seabirds. | WANYi HUJianying ANLihui ANWei YANGMin ItohMitsuaki HattoriTatsuya1 TAOShu | 2005 | Chinese Science Bulletin2005，50，10： | 10 |
| 4 | Evaluation of virus removal in MBR using coliphages T4显示文摘A membrane bioreactor (MBR) with gravity drain was tested for domestic wastewater for 65 days. Results showed that the effluent quality was excellent, and met with the reuse water standard of China (GB/T 18920-2002). Virus removal in the membrane separation process was investi- gated by employing coliphages T4 as a tracer. Two microfil- tration membrane modules, with pore sizes of 0.22 and 0.1 μm, were used to investigate their effects on virus rejection at the transmembrane pressure of 8.5 kPa. It was found that 0.1 μm membrane had complete rejection of virus, and 0.22 μm membrane had significant rejection of virus. In the long- term operation of this MBR, no significant difference was observed between both pore sizes because the virus concen- trations of the effluent in both cases were in the same order. Effluent virus concentration at steady state of MBR running was less than 2 PFU/mL. The removal ratios of coliphage T4 in MF processes were more than 105.5. The membrane sur- face deposits played an important role in the rejection of virus. The formation of cake clay on the membrane surface was the main cause of high rejection of coliphage T4 with MF of 0.22 μm. | ZHENGXian LUWenzhou YANGMin LIUJunxin | 2005 | Chinese Science Bulletin2005，50，9： | 8 |
| 5 | Novel Surface Design of Deployable Reflector Antenna Based on Polar Scissor Structures显示文摘Space-deployable mechanisms can be used as supporting structures for large-diameter antennas in space engineering.This study proposes a novel method for constructing the surface design of space reflector antennas based on polar scissor units.The concurrency and deployability equations of the space scissor unit with definite surface constraints are derived using the rod and vector methods.Constraint equations of the spatial transformation for space n-edge polar scissor units are summarized.A new closed-loop deployable structure,called the polar scissor deployable antenna(PSDA),is designed by combining planar polar scissor units with spatial polar scissor units.The overconstrained problem is solved by releasing the curve constraint that locates at the end-point of the planar scissor mechanism.Kinematics simulation and error analysis are performed.The results show that the PSDA can effectively fit the paraboloid of revolution.Finally,deployment experiments verify the validity and feasibility of the proposed design method,which provides a new idea for the construction of large space-reflector antennas. | Pengyuan Zhao Jinguo Liu Chenchen Wu Yangmin Li Keli Chen | 2020 | Chinese Journal of Mechanical Engineering2020，33，5： | 7 |
| 6 | Ecology of testate amoebae in Dajiuhu peatland of Shennongjia Mountains, China, in relation to hydrology显示文摘这研究在华中调查大 peatland 的留有遗嘱的变形虫社区。生态学和留有遗嘱的变形虫社区的季节的可变性在 2009-2010 期间被学习。用分类的环境控制的调查证明在到水桌子(DWT ) 和 pH 的留有遗嘱的变形虫社区和深度之间的关系是极其弱的。走水路这里解释表格深度的变化的小比例(仅仅 1.9% 在完整的数据) 水文学控制比我们在这 peatland 期望的弱的表演,并且比任何学习弱我们知道使用类似的方法论。开发种类环境(转移功能) 的尝试模型或鉴别为未来 palaeoecological 研究的指示物种类是失败的。留有遗嘱的变形虫生态学大部分是的 peatland 的以前的大规模研究限制了为欧洲和北美洲,结果在研究之中是相对一致的。我们的结果与这一致形成对照并且在中国留有遗嘱的变形虫社区至少在 minerotrophic peatlands 建议那可以被不同环境变量首先控制。在中国,留有遗嘱的阿米巴几乎相对没被学习,但是可以证明为在 palaeoecology 和 biomonitoring 和进一步的工作的许多应用程序珍贵被要求[出版摘要] | Yangmin QIN Richard J PAYNE YanshengGU Xianyu HUANG Hongmei WANG | 2012 | Frontiers of Earth Science2012，6，1： | 6 |
| 7 | Distributed learning particle swarm optimizer for global optimization of multimodal problems显示文摘 | Geng ZHANG Yangmin LI Yuhui SHI | 2018 | Frontiers of Computer Science2018，12，1： | 5 |
| 8 | Effect of Temperature and Ram Speed on Isothermal Extrusion for Large-size Tube with Piece-wing显示文摘Heat energy change during the extrusion of 7075 aluminium alloy large-size tube with piece-wing in a container was analyzed. Extrusion load vs ram displacement diagrams and exit temperature vs ram displacement diagrams at various speeds were obtained by 3D FEM simulation. Results show that the exit temperature becomes higher as the ram speed and displacement increase. For large-size tube with piece-wing, there is certainly a curve of ram speed decreasing with increasing ram displacement, which enables isothermal extrusion to be achieved. Therefore,an attempt was made to divide the working stroke into five different zones. Each of them has a preset speed that decreases from the ram displacement beginning to the ending. And then, new exit temperature vs ram displacement diagram was obtained by 3D FEM simulation for the five different speeds. It is shown that the variation of exit temperature is very small. Through the above research, a basic method for realizing isothermal extrusion of 7075large-size tube with piece-wing was obtained, that is, the working stroke was divided into several different zones with a decreasing speed during extrusion, each zones' speed was real-time adjusted on the feedback signal of exit temperature by proportional hydraulic valve through closed-loop control. The engineering experiment verification was carried out on 100 MN aluminium extrusion press with oil-driven double action. The experimental results of the exit temperature agrees with the simulation ones. The achievements of this study may serve as a significant guide to the practice of the relevant processes, particularly for isothermal extrusion. The verified method has been used in the design and manufacture of 125 MN aluminium extrusion press with oil-driven double action. | He YANG Jun ZHANG Yangmin HE Bingtao HAN | 2005 | Journal of Materials Science & Technology2005，21，4： | 5 |
| 9 | Electrochemical Oxidative C-H Sulfenylation of Imidazopyridines with Hydrogen Evolution显示文摘Summary of main observation and conclusion Selective oxidative C-H sulfenylation of imidazopyridine heterocycles is achieved using an undivided electrolytic cell.The reaction avoids the use of stoichiometric amount of external chemical oxidant and produces hydrogen gas as the only byproduct. Both aryl and aliphatic thiols demonstrate good reactivity for C-S bond formation. | Yong Yuan Yangmin Cao Jin qiao Yueping Lin Xiaomei Jiang Yaqing Weng Shan Tang Aiwen Lei | 2019 | Chinese Journal of Chemistry2019，37，1： | 5 |
| 10 | Tuning F-doped degree of rGO:Restraining corrosion-promotion activity of EP/rGO nanocomposite coating显示文摘Given that graphene features high electrical conductivity,it is a kind of material with corrosion-promotion activity.This study aimed to inhibit the corrosion-promotion activity of graphene in coatings.Here,we report an exciting application of epoxy matrix(EP)/F-doped reduced graphene oxide(rGO)coatings for the long-term corrosion protection of steel.The synthesized F-doped rGO(FG)did not reduce the utilization of rGO by a wide margin and possessed distinctive electrically insulating nature.The electrical conductivity of rGO was approximately 1500 S/m,whereas those of FG-1,FG-2 and FG-3 were 1.17,5.217×10^−2 and 3.643×10^-11 S/m,respectively.FG and rGO were then dispersed into epoxy coatings.The chemical structures of rGO and FG were investigated by transmission electron microscopy(TEM),scanning probe microscopy(SPM),X-ray photoelectron spectroscopy(XPS),Fourier-transform infrared spectroscopy(FTIR),and X-ray diffraction(XRD).EP/FG coatings exhibited outstanding corrosion protection in comparison with blank EP and EP/rGO coatings mainly because the corrosion-promotion effect of rGO was eliminated.The anticorrosion ability of EP/FG coatingswasimproved with increased F-doped degree of FG.In addition,electrochemical impendance spectroscopy(EIS)results indicated that the Rc values of EP/FG-2 and EP/FG-3 were four orders of magnitude higher than those of EP/rGO in diluent NaCl solution(3.5 wt.%)after immersion for 90 days. | Lu Shen Yong Li Wenjie Zhao Kui Wang Xiaojing Ci Yangmin Wu Gang Liu Chao Liu Zhiwen Fang | 2020 | Journal of Materials Science & Technology2020，44，9： | 5 |
| 11 | Synergy of Anodic Oxidation and Cathodic Reduction Leads to Electrochemical C—H Halogenation显示文摘We herein uncovered an electrochemical C—H halogenation protocol that synergistically combines anodic oxidation and cathodic reduction for C—X bond formation. The reaction was demonstrated under exogenous-oxidant-free conditions. Moreover, this is the first example of activating CBr4, CHBr3, and CCl3Br under electrochemical conditions. | Zhilin Zhou Yong Yuan Yangmin Cao Jin Qiao Anjin Yao Jing Zhao Wanqing Zuo Wenjie Chen Aiwen Lei | 2019 | Chinese Journal of Chemistry2019，37，6： | 4 |
| 12 | How the fluorographene replaced graphene as nanoadditive for improving tribological performances of GTL-8 based lubricant oil显示文摘Fluorographene,a new alternative to graphene,it not only inherits the 2-dimensional(2D)layered structure and outstanding mechanical properties,but also possesses controllable C-F bonds.It is meaningful to reveal the evolution processes of the tribological behaviors from graphene to fluorographene.In this work,fluorinated reduced graphene oxide nanosheets(F-rGO)with different degree of fluorination were prepared using direct gas-fluorination and they were added into gas to liquid-8(GTL-8)base oil as lubricant additive to improve the tribological performance.According to the results,the coefficient of friction(COF)reduced by 21%,notably,the wear rate reduced by 87%with the addition of highly fluorinated reduced graphene oxide(HF-rGO)compared with rGO.It was confirmed that more covalent C-F bonds which improved the chemical stability of HF-rGO resisted the detachment of fluorine so the HF-rGO nanosheets showed less damage,as demonstrated via X-ray photoelectron spectroscopy(XPS),Raman spectra,and transmission electron microscopy(TEM).Meanwhile,the ionic liquid(IL)adsorbed on HF-rGO successfully improved the dispersibility of F-rGO in GTL-8 base oil.The investigation of tribofilm by TEM and focused ion beam(FIB)illustrated that IL displayed a synergy to participate in the tribochemical reaction and increased the thickness of tribofilm during the friction process. | Xiaojing CI Wenjie ZHAO Jun LUO Yangmin WU Tianhao GE Qunji XUE Xiulei GAO Zhiwen FANG | 2021 | Friction2021，9，3： | 4 |
| 13 | Design and application of solar sailing: A review on key technologies显示文摘Solar sail technology has been proposed and developed for space explorations with advantages of low launch cost,no-propellant consumption,and continuous thrust,which has great potentials in earth polar detection,interstellar explorations and etc.The development of solar sail has made significant progress in structural design,manufacturing,materials,orbit transfer,and stability control in the past few decades,which makes meaningful contributions to astronomy,physics,and aerospace science.Technological breakthroughs of Solar Radiation Pressure(SRP)propulsion and interstellar transfer have been achieved in current solar sail missions.However,there are still many challenges and problems need to be solved.This paper attempts to summarize the research schemes and potential applications of solar sailing in space missions from the viewpoint of key technologies,so as to provide an overall perspective for researchers in this field.Analyses of the key technologies of solar sailing system design are provided.Finally,challenges and prospective development of solar sailing are discussed. | Pengyuan ZHAO Chenchen WU Yangmin LI | 2023 | Chinese Journal of Aeronautics2023，36，5： | 3 |
| 14 | Numerical Simulation of Warm Forming Behavior of High Strength Aluminum Alloy 7075显示文摘Numerical analysis is critically important to understanding the complex deformation mechanics that occur during sheet forming processes.It has been widely used in simulation of sheet metal forming processes at room temperature in the automotive industry.However,material at elevated temperature behaves more differently than at room temperature and specific material parameters and models need to be developed for the simulation of warm forming.Based on the experimental investigation of material behavior of high strength aluminum alloy 7075(AA7075),constitutive equations with strain rate sensitivity at 140,180 and 220 ℃ are developed.Anisotropic yield criterion Barlat 89 is used in the simulation.Warm forming of limit dome height tests and limit drawing ratio tests of AA7075 at 140,180 and 220℃are performed.Forming limit diagrams developed from experiment at several elevated temperatures in the previous study are used to predict the failure in the simulation results.Punch force and displacement predicted from simulation are compared with the experimental data.Simulation results agree with experimental results,so the developed material model can be used to accurately predict material behavior during isothermal warm forming of the AA7075-T6 alloy. | Wang Hui Yan Dawei Liang Yangmin Xie Guoyin | 2016 | Transactions of Nanjing University of Aeronautics and Astronautics2016，33，5： | 3 |
| 15 | Progressive silencing of the zinc transporter Zip8 (Sic39a8) in chronic cadmium-exposed lung epithelial cells显示文摘镉(Cd ) ,非本质的金属,暗地里由利用进口小径的必要金属进入房间。锌 transporters Zip8 , Zip14 ,和二价的金属 transporter ( Dmt1 ) 1 现在作为涉及细胞的 Cd 加入的几重要金属 transporters 正在出现,他们的表情被显示了下面调整在几Cd抵抗( Cd R )房间线,然而这些 transporters 的参与在在肺房间的Cd抵抗的发展期间是不清楚的。在这研究,我们因此在我们的以前确定的老鼠肺检查这些金属 transporters 的表示上皮的房间(LEC ) 和 Zip8 的水平是的表演日益增多地 silenced 当 LEC 被使适应增加 CdCl 2 的集中时(从 1 ~ 20 M ) 。细胞的 Cd 内容的随后的测量显示了那 Cd R LEC 展出 Cd 累积的显著减少,可能由于 Zip8 的损失表示。我们调查由 DNA hypermethylation 的 Zip8 基因的 epigenetic silencing 涉及 Zip8 表示的下面规定的可能性。Cd R LEC 比父母房间显示出 DNA methyltransferase 3b (Dnmt3b ) 的更高的 mRNA 水平。Cd 有 5-aza-2-deoxycytidine 的 R LEC, DNA methyltransferases 的一个禁止者,回复到在这些房间的 Cd 的 Zip8 和敏感的表示,为 Cd 进口显示 Zip8 的关键角色。一起拿,我们的结果证明 Zip8 表示的进步 silencing 在肺房间对 Cd 涉及抵抗的获得,代表抵抗导致 Cd 的 cytotoxicity 的适应幸存机制。 | Yangmin Gao Yanming Xu Dandan Wu Feiyuan Yu Lei Yang Yue Yao Zhanling Liang Andy T. Y. Lau | 2017 | Acta Biochimica et Biophysica Sinica2017，49，5： | 2 |
| 16 | Design and analysis of a totally decoupled flexure-based XY parallel micromanipulator显示文摘 | LI Yangmin XU Qingsong | 2009 | IEEE Transactions on Robotics2009，25，3： | 1 |
| 17 | A new approach to the architecture optimization of a general 3- PUU translational parallel manipulator 显示文摘 | L1 Yangmin XU Qingsong | 2006 | Journal of Intelligent and Robotic Systems2006，46，1： | 1 |
| 18 | Stiffness analysis for a 3-PUU parallel kinematic machine显示文摘 | Li Yangmin Xu Qingsong | 2008 | Mechanism and Machine Theo- ry2008，43，2： | 1 |
| 19 | Kinematic Analysis of a 3-PRS Parallel Manipulator显示文摘 | LI Yangmin XU Qingsong | 2007 | Robotics and Computer-lntegrated Manufacturing2007，23，： | 1 |
| 20 | Design and analysis of a dual-mode driven parallel XY micromanipulator for micro/nanomanipulations显示文摘 | Tang Hui Li Yangmin Huang Jiming | 2012 | Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical En-gineering Science2012，226，12： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员