|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | CALIBRATION OF A 6-DOF SPACE ROBOT USING GENETIC ALGORITHM显示文摘The kinematic error model of a 6-DOF space robot is deduced,and the cost function of kinematic parameter identification is built.With the aid of the genetic algorithm (GA) that has the powerful global adaptive probabilistic search ability,24 parameters of the robot are identified through simulation,which makes the pose (position and orientation) accuracy of the robot a great improvement.In the process of the calibration,stochastic measurement noises are considered.Lastly, generalization of the identified kinematic parameters in the whole workspace of the robot is discussed. The simulation results show that calibrating the robot with GA is very stable and not sensitive to measurement noise.Moreover,even if the robot's kinematic parameters are relative,GA still has strong search ability to find the optimum solution. | LIU Yu JIANG Yanshu LIANG Bin XU Wenfu | 2008 | Chinese Journal of Mechanical Engineering2008，21，6： | 15 |
| 2 | Interannual variability in soil respiration from terrestrial ecosystems in China and its response to climate change显示文摘Soil respiration is an important process in terrestrial carbon cycle.Concerning terrestrial ecosystems in China, quantifying the spatiotemporal pattern of soil respiration at the regional scale is critical in providing a theoretical basis for evaluating carbon budget.In this study, we used an empirically based, semi-mechanistic model including climate and soil properties to estimate annual soil respiration from terrestrial ecosystems in China from 1970 to 2009.We further analyzed the relationship between interannual variability in soil respiration and climatic factors (air temperature and precipitation).Results indicated that the distribution of annual soil respiration showed clear spatial patterns.The highest and lowest annual soil respiration rates appeared in southeastern China and northwestern China, respectively, which was in accordance with the spatial patterns of mean annual air temperature and annual precipitation.Although the mean annual air temperature in northwestern China was higher than that in some regions of northeastern china, a greater topsoil organic carbon storage in northeastern China might result in the higher annual soil respiration in this region.By contrast, lower temperature, less precipitation and smaller topsoil organic carbon pool incurred the lowest annual soil respiration in northwestern China.Annual soil respiration from terrestrial ecosystems in China varied from 4.58 to 5.19 PgCa-1 between 1970 and 2009.During this time period, on average, annual soil respiration was estimated to be 4.83 PgCa-1 .Annual soil respiration in China accounted for 4.93%-6.01% of the global annual soil CO2 emission.The interannual variability in soil respiration depended on the interannual variability in precipitation and mean air temperature.In order to reduce the uncertainty in estimating annual soil respiration at regional scale, more in situ measurements of soil respiration and relevant factors (e.g.climate, soil and vegetation) should be made simultaneously and historical soil property data sets should also be established. | CHEN ShuTao HUANG Yao ZOU JianWen SHI YanShu LU YanYu ZHANG Wen HU ZhengHua | 2012 | Science China Earth Sciences2012，55，12： | 8 |
| 3 | Myelin protein zero and its antibody in serum as biomarkers of n-hexane-induced peripheral neuropathy and neurotoxicity effects显示文摘 | Jia Xiaowei Liu Qingjun Zhang Yanshu Dai Yufei Duan Huawei Bin Ping Niu Yong Liu Jie Zhong Liuzhen Guo Jisheng Liu Xiaofeng Zheng Yuxin | 2014 | Chinese Medical Journal2014，，8： | 8 |
| 4 | Acrylamide exposure impairs blood-cerebrospinal fluid barrier function显示文摘Previous studies show that chronic acrylamide exposure leads to central and peripheral neuropathy. However, the underlying mechanisms remained unclear. In this study, we examined the permeability of the blood-cerebrospinal fluid barrier, and its ability to secrete transthyretin and transport leptin of rats exposed to acrylamide for 7, 14, 21 or 28 days. Transthyretin levels in cerebrospinal fluid began to decline on day 7 after acrylamide exposure. The sodium fluorescein level in cerebrospinal fluid was increased on day 14 after exposure. Evans blue concentration in cerebrospinal fluid was increased and the cerebrospinal fluid/serum leptin ratio was decreased on days 21 and 28 after exposure. In comparison, the cerebrospinal fluid/serum albumin ratio was increased on day 28 after exposure. Our findings show that acrylamide exposure damages the blood-cerebrospinal fluid barrier and impairs secretory and transport functions. These changes may underlie acrylamide-induced neurotoxicity. | Xue Yao Licheng Yan Lin Yao Weijun Guan Fanxu Zeng Fuyuan Cao Yanshu Zhang | 2014 | Neural Regeneration Research2014，9，5： | 4 |
| 5 | Radix Achyranthis Bidentatae improves learning and memory capabilities in ovariectomized rats显示文摘Kidney-tonifying recipe can reduce the accumulation of advanced glycation end products, prevent neuronal degeneration and improve cognitive functions in ovariectomized rats. Radix Achyranthis Bidentatae alcohol extracts may dose-dependently inhibit non-enzymatic saccharification in vitro. This study aimed to examine the effect of Radix Achyranthis Bidentatae on advanced glycation end products and on learning and memory capabilities in ovariectomized rats. Ovariectomized rats were treated with Radix Achyranthis Bidentatae alcohol extracts (containing 1.5 g/kg crude drug) or 0.1% aminoguanidine for 12 weeks and behavioral testing was performed with the Y-electrical maze. This test revealed that Radix Achyranthis Bidentatae and aminoguanidine could improve the learning and memory capabilities of ovariectomized rats. Results of competitive enzyme-linked immunosorbent assay showed that treatment with Radix Achyranthis Bidentatae or aminoguanidine reduced the accumulation of advanced glycation end products in the frontal cortex of ovariectomized rats, while increasing content in the blood and urine. Biochemical tests showed that treatment with Radix Achyranthis Bidentatae or aminoguanidine decreased superoxide dismutase activity in the serum and frontal cortex, and increased serum levels of glutathione peroxidase in ovariectomized rats. In addition, there was no apparent effect on malondialdehyde levels. These experimental findings indicate that Radix Achyranthis Bidentatae inhibits production of advanced glycation end products and its accumulation in brain tissue, and improves learning and memory capabilities in ovariectomized rats. These effects may be associated with an anti-oxidative action of the extract. | Yuefen Wang Ya Xu Yanshu Pan Weihong Li Wei Zhang Yang Liu Jing Jia Pengtao Li | 2013 | Neural Regeneration Research2013，8，18： | 4 |
| 6 | Long-term Hardening Characteristics of Prestressed Anchorage Grout显示文摘Grout plays an important role in the transmission and maintenance of anchoring force,and in the protection of anchorage materials against corrosion.Thus,the hardening characteristics of grout directly affect the anchoring effectivity and long-term reliability.We have excavated a prestressed anchorage which has been in service for 20 years,and have tested the grout which has worked for that long period under complicated geological conditions through strength tests and have analyzed its mineral composition using scanning electron microscopy(SEM) and X-ray diffraction(XRD).The results show that the mineral composition of the 12.5 m segment differs from other segments,and corresponds with poor coagulation characteristics of the 12.5 m segment grout.Analysis shows that unhydrated tricalcium silicate may be the reason for the localized poor coagulation. | WANG Sheng CHEN Liyi HUANG Runqiu JIANG Zhaoqun WANG Yanshu | 2012 | Journal of Mountain Science2012，9，6： | 2 |
| 7 | Deformation behaviour of commercially pure titanium during simple hot compression显示文摘 | Zhipeng Zeng Yanshu Zhang Stefan Jonsson | 2008 | Materials and Design2008，，8： | 1 |
| 8 | Norrin/Frizzled4 Signaling in Retinal Vascular Development and Blood Brain Barrier Plasticity显示文摘 | Yanshu Wang Amir Rattner Yulian Zhou John Williams Philip M. Smallwood Jeremy Nathans | 2012 | Cell2012，，6： | 1 |
| 9 | Influence Factors on the Distribution of Tidal Bar in Tide-Dominated Estuary: Insight from Deposition Numerical Simulation显示文摘Objective The Mcmurray Formation oil sands in the Athabasca region of Canada are mainly a deposit of tide-dominated estuary and an important target of oil and gas exploration of CNPC.However,the outcrop and the subsurface reservoir of tide-dominated estuary are few,and the formation mechanisms and distribution of estuarine sand bar are ambiguous due to the interaction of fluvial and | YIN Yanshu ZHOU Han FENG Wenjie HUANG Jixin LIU Shangqi | 2018 | Acta Geologica Sinica(English Edition)2018，92，5： | 1 |
| 10 | Bundling strategy and product differentiation显示文摘 | Huiling Chung Yanshu Lin Jinli Hu | 2013 | Journal of Economics2013，108，3： | 1 |
| 11 | Evaluation on Pro- tective Performance of Organic Coatings by Analyzing the Change Rate of Phase Angle at High Frequeney显示文摘 | Luo Bing Xu Antao Liang Yanshu | 2012 | Internation- al Electrochemical Journal of Science2012，7，： | 1 |
| 12 | Mean residence time of global topsoil organic carbon depends on temperature, precipitation and soil nitrogen显示文摘 | Shutao Chen Yao Huang Jianwen Zou Yanshu Shi | 2013 | Global and Planetary Change2013，，： | 1 |
| 13 | The long-term effects of the herbicide atrazine on the dopaminergic system following exposure during pubertal development 显示文摘 | Yanshu Li Yan Sun | 2014 | Mutation Research2014，763，： | 1 |
| 14 | Forest endowment,logging restrictions, and China’s wood products trade显示文摘 | Daowei Zhang Yanshu Li | | 0，，20： | 1 |
| 15 | The Chinese herbal formula Tongluo Jiunao promotes expression of brain-derived neurotrophic factor/tropomyosin-related kinase B pathways in a rat model of ischemic brain injury显示文摘The neurotrophin-Trk receptor pathway is an intrinsic pathway to relieve damage to the central nervous system. The present study observed the effects of Tongluo Jiunao (TLJN), which comprises Panax Notoginseng and Gardenia Jasminoides, on expression of brain-derived neurotrophic factor (BDNF) and tropomyosin-related kinase B (TrkB) in a rat model of focal cerebral ischemic injury. Xue Sai Tong (XST), comprising Panax Notoginseng, served as the positive control. Mechanisms of neuroprotection were analyzed following TLJN injection. Following establishment of the middle cerebral artery occlusion models, TLJN and XST were intraperitoneally injected, and 2, 3, 5-triphenyltetrazolium chloride staining results revealed that TLJN injection reduced infarct volume, suggesting that TLJN exerted a neuroprotective effect. Enzyme-linked immunosorbent assay results showed that TLJN elevated BDNF and growth associated protein-43 expression in ischemic brain tissues, as well as serum BDNF levels. Reverse-transcription polymerase chain reaction and western blot results showed that TLJN injection did not affect TrkB expression in the ischemic brain tissues of rats. These results suggested that TLJN injection reduced damage to ischemic brain tissues and increased BDNF expression. In addition, TLJN injection resulted in better promoting effects on neurotrophic factor expression compared with XST. | Peiman Alesheikh Huiling Tang Pengtao Li Wei Zhang Yanshu Pan Arezou Mashoufi Liyun Zhao Runjun Wang Bo Di Yangyang Yan | 2011 | Neural Regeneration Research2011，6，12： | 1 |
| 16 | Analysis and design of a feed-forward-type active filter to eliminate common-mode voltage generated by a PWM inverter显示文摘 | Jiang Yanshu Xu Dianguo Chen Xiyou | 2002 | Proceedings of IEEE Annual Conference of the Industrial Electronics Society Sevilla Spain2002，2002，： | 1 |
| 17 | Analysis and design of a feed-forward-type active filter to eliminate common-mode voltage generated by a PWM inverter显示文摘 | Jiang Yanshu Xu Dianguo Chen Xiyou | 2002 | IEEE IECON Proceedings Sevilla Spain2002，2002，： | 1 |
| 18 | Improvement of sensitive CuO NFs–ITO nonenzymatic glucose sensor based on in situ electrospun fiber显示文摘 | Guangyue Liu Baozhan Zheng Yanshu Jiang Yuqing Cai Juan Du Hongyan Yuan Dan Xiao | 2012 | Talanta2012，，： | 1 |
| 19 | Forest Endowment,Logging Restric- tions and China' s Wood Products Trade显示文摘 | Zhang Daowei and Li Yanshu | 2009 | China Economic Re- view2009，，20： | 1 |
| 20 | Forest endowment, logging restrietions,and China' s wood Products trade 显示文摘 | Daowei Zhang Yanshu Li | 2009 | China Economic keview2009，，20： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员