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10篇 您的检索式:作者名="Zuoping LI"
    题名 作者 年代 出处 被引量
1Rib Fractures Under Anterior-posterior Dynamic Loads: Experimental and Finite Element Study显示文摘Li Zuoping Kindig Matthew W Kerrigan Jason R 2010Journal of Biomechanics2010,43,2:1
2Influence of Mesh Density, Cortical Thickness and Material Properties on Human Rib Fracture Predietion显示文摘Li Zuoping Kindig Matthew W Subit Damien 2010Medical Engineering & Physics2010,32,:1
3我们对美好生活更加充满信心 习近平总书记春节前夕赴四川看望慰问各族干部群众回访记(英文)显示文摘President Xi Jinping, generalsecretary of the Communist Party CentralCommittee and chairman of the CentralMilitary Commission, paid a visit to localofficials and people in Sichuan Province.From the towering Daliang Mountains tothe green Yingxiu Town, from workshopsto village gates, Xi expressed the greatestconcern for cadres and people of all ethnicgroups, bringing them the warmth offamily and encouraging them to be moreconfident in our beautiful life.Jiang Zuoping Jiang Yi Xiao Lin Yang Di Ye Hanyong Li Qianwei Xu Ru 2018China's Ethnic Groups2018,16,3:0
4Assessing heavy metal pollution and potential ecological risk of tea plantation soils显示文摘Accumulation of heavy metals in agricultural soils tends to increase crop uptake of heavy metals,and can adversely impact human health through food chains.This study assessed the heavy metal pollution status and the potential ecological risk of tea plantation soils in southern Shaanxi Province,China.A total of 330 topsoil samples were collected to analyze the concentrations of seven heavy metals(Pb,Zn,Cu,Cr,Hg,As and Cd)and the pH level.The Hakanson potential ecological risk index was used based on the background levels of soil heavy metals in Shaanxi.Results showed that the averaged concentrations of soil Pb,Zn,Cu,Cr,Hg,As,and Cd were 10.0,87.6,16.4,12.4,0.2,6.9 and 0.1 mg/kg,respectively.Cd and Hg concentrations exceeded level II of China’s Soil Environment Quality Standard(GB 15618-2009)in 9.3%and 7.0%of the total samples,respectively.The coefficient of variation ranged from 29.2%to 52.2%for different elements,and was 49.3%for Cd and 48.6%for Hg.The averaged comprehensive potential ecological risk index was 95.4,and the overall potential ecological risk was low,with 82.4%of the total samples at a low level of potential ecological risk.Cd and Hg contributed most to the potential ecological risk(35.5%and 46.5%,respectively),and the risks associated with other elements were relatively minor.This study suggested that soil Cd and Hg pollution should be controlled to ensure the safe production of tea in the study area.Zuoping Zhao Sha Yan Min Duan Jing Fu Qi Wang Zhifeng Liu Fengmin Song Bo Tang Chen Li Gongwei Qin Yanan Tong 2019International Journal of Agricultural and Biological Engineering2019,12,6:0
5A machine learning-assisted multifunctional tactile sensor for smart prosthetics显示文摘The absence of tactile perception limits the dexterity of a prosthetic hand and its acceptance by amputees.Recreating the sensing properties of the skin using a flexible tactile sensor could have profound implications for prosthetics,whereas existing tactile sensors often have limited functionality with cross-interference.In this study,we propose a machine-learning-assisted multifunctional tactile sensor for smart prosthetics,providing a human-like tactile sensing approach for amputations.This flexible sensor is based on a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)(PEDOT:PSS)-melamine sponge,which enables the detection of force and temperature with low cross-coupling owing to two separate sensing mechanisms:the open-circuit voltage of the sensor as a force-insensitive intrinsic variable to measure the absolute temperature and the resistance as a temperature-insensitive extrinsic variable to measure force.Furthermore,by analyzing the unsteady heat conduction and characterizing it using real-time thermal imaging,we demonstrated that the process of open-circuit voltage variation resulting from the unsteady heat conduction is closely correlated with the heatconducting capabilities of materials,which can be utilized to discriminate between substances.Assisted by the decision tree algorithm,the device is endowed with thermal conductivity sensing ability,which allows it to identify 10 types of substances with an accuracy of 94.7%.Furthermore,an individual wearing an advanced myoelectric prosthesis equipped with the above sensor can sense pressure,temperature,and recognize different materials.We demonstrated that our multifunctional tactile sensor provides a new strategy to help amputees feel force,temperature and identify the material of objects without the aid of vision.Yue Li Lin Yang Shihao Deng Hong Huang Yingyi Wang Zuoping Xiong Simin Feng Shuqi Wang Tie Li Ting Zhang 2023InfoMat2023,5,9:0
6Effects of Maca Extract on Endurance and Blood Antioxidant Enzyme Activity of Rats显示文摘[Objectives] The aim was to investigate the effects of maca extract on endurance and blood antioxidative enzyme activity of rats.[Methods]The Wistar rats treated with/without maca extract( 8. 0,16. 0,and 32. 0 g/kg) were given with free access to circulating water.The administration was conducted for 15 consecutive d. On the 16 th d,the endurance and blood malondialdehyde( MDA),superoxide dismutase( SOD) and glutathione peroxidase( GSH-Px) levels of the rats were determined. [Results] Compared with those of the rats without maca extract treatment,the swimming time before sinking of the rats administered with 8. 0,16. 0,and 32. 0 g/kg of maca extract was increased by 34. 38%,84. 25% and 126. 07%( P < 0. 01),the total swimming time was increased by 37. 42%,47. 03% and 107. 24%( P <0. 01),the times of sinking was reduced by 17. 65%,33. 28% and 55. 50%( P < 0. 05,P < 0. 01),the blood MDA level was reduced by 34.63%,54. 13% and 63. 73%( P < 0. 01),the blood SOD activity was increased by 67. 78%,108. 25% and 154. 49%( P < 0. 01),and the blood GSH-Px level was increased by 48. 57%,110. 28% and 154. 86%( P < 0. 01). [Conclusions]Maca extract has the functions of resisting fatigue and enhancing athletic,and the mechanisms are related to the reduction of blood MDA level and the increase of blood SOD and GSH-Px activity.Zuoping LI Farong YU Mingren XIE 2018Medicinal Plant2018,9,4:0
7Amine-functionalized hierarchically porous carbon supported Pd nanocatalysts for highly efficient H2 generation from formic acid with fast-diffusion channels显示文摘Formic acid(FA)has come to be considered a potential candidate for hydrogen storage,and the development of efficient catalysts for H2releasing is crucial for realizing the sustainable process from FA.Herein,we have developed the ultrafine Pd nanoparticle(NPs)with amine-functionalized carbon as a support,which was found to show an excellent catalytic activity in H_(2)generation from FA dehydrogenation.The synergetic mechanism between amine-group and Pd active site was demonstrated to facilitate H2generation byβ-hydride elimination.Moreover,the texture of support for Pd NPs also plays an important role in determining the reactivity of FA,since the diffusion of gaseous products makes the kinetics of diffusion as a challenge in this high performance Pd catalysts.As a result,the as-prepared Pd/NH_(2)-TPC catalyst with the small sized Pd nanoparticles and the hierarchically porous structures shows a turnover of frequency(TOF)value of 4312 h^(-1)for the additive-free FA dehydrogenation at room temperature,which is comparable to the most promising heterogeneous catalysts.Our results demonstrated that the intrinsic catalytic activities of active site as well as the porous structure of support are both important factors in determining catalytic performances in H2generation from FA dehydrogenation,which is also helpful to develop high-activity catalysts for other advanced gas-liquid-solid reactions systems.Xianzhao Shao Xinyi Miao Fengwu Tian Miaomiao Bai Xiaosha Guo Wei Wang Zuoping Zhao Xiaohui Ji Miyi Li Fangan Deng 2023Journal of Energy Chemistry2023,,1:0
8Effects of Noise Pollution on Functions of the Liver and Kidney of Rats显示文摘To study the effects of noise pollution on the functions of the liver and kidney of rats,a total of 40 male SPF Wistar rats were randomly divided into a control group and three experimental groups. The rats in the experimental groups were respectively stimulated with 38,55 and 70 dB noise for 15 days,and the levels of blood components were determined by an automatic biochemical analyzer. The results showed that in comparison with the control group,the level of the blood glucose in the experimental groups increased by 23. 53%,52. 94% and 88. 24%,respectively,and the differences were statistically significant( P < 0. 01). The levels of triglyceride in the blood rose by 20. 83%,38. 54% and 79. 68%,respectively,and the differences were also statistically significant( P < 0. 01). The level of globulin in the blood increased by 16. 49%,21. 13% and 51. 78%,and the level of albumin in the blood rose by 9. 51%,12. 67% and 17. 89%,respectively. The level of total bilirubin in the blood increased by 27. 04%,41. 63% and 73. 67%,respectively,and the differences were statistically significant( P < 0. 01). The level of creatinine in the blood rose by 9. 72%,10. 21% and 20. 99%,respectively. The level of amylase in the blood reduced by 6. 6%,13. 05% and 23. 89%,respectively. The level of creatine kinase in the blood decreased by 19. 81%,27. 37% and 36. 81%,respectively,and the level of urea in the blood reduced by 11. 19%,12. 77% and19. 26%,respectively. The results revealed that noise pollution could significantly affect the levels of blood components and the functions of the liver and kidney of rats.Yu Farong Yu Xin Li Zuoping Lian Xiuzhen Xie Mingren Li Denglou 2018Meteorological and Environmental Research2018,9,4:0
9Multifunctional biomimetic tactile system via a stick-slip sensing strategy for human–machine interactions显示文摘A tactile sensor system enables natural interaction between humans and machines;this interaction is crucial for dexterous robotic hands,interactive entertainment,and other smart scenarios.However,the lack of sliding friction detection significantly limits the accuracy and scope of interactions due to the absence of sophisticated information,such as slippage,material and roughness of held objects.Here,inspired by the stick-slip phenomena in the sliding process,we have developed a multifunctional biomimetic tactile system based on the stick-slip sensing strategy,which is a universal method to detect slippage and estimate the surface properties of objects by sliding.This system consists of a flexible fingertip-inspired tactile sensor,a read-out circuit and a machinelearning module.Based on the stick-slip sensing strategy,our system was endowed with high recognition rates for slippage detection(100.0%),material classification(93.3%)and roughness discrimination(92.8%).Moreover,robotic hand manipulation,interactive games and object classification are demonstrated with this multifunctional system for comprehensive and promising human-machine interactions.Yue Li Manjun Zhao Yadong Yan Luanxi He Yingyi Wang Zuoping Xiong Shuqi Wang Yuanyuan Bai Fuqin Sun Qifeng Lu Yu Wang Tie Li Ting Zhang 2022npj Flexible Electronics2022,6,1:0
10Inducement of Sechenov inhibition by EtOH and NA in the Bufo toad显示文摘Central inhibition, discovered by Sechenov in 1862, suggests that electrically stimulating the forebrain or medulla oblongata in frog generally suppresses reflexes. However, the underlying molecular mechanisms are still unclear. Using ethanol (EtOH), noradrenalin (NA), and other neurotransmitters in thalamic preparations, Sechenov inhibition was stimulated in Bufo toads in this study. The result showed that, similar to Sechenov inhibition, the acute application of EtOH or NA excited the thalamus and prolonged the latency of withdrawal reflex. Our study evidences the involvement of α-adrenoceptors in such central inhibition, and explains the role of acute EtOH application in the in- duction of reflex inhibition.LI RuXin JIA ShanShan LI YingZi CAO Yin CHENG XiuZhen XIE ZuoPing 2008Chinese Science Bulletin2008,53,8:0
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