|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Gait analysis of goat at different slopes and study on biomimetic walking mechanism显示文摘To study the walking status of a goat on slope and the walking mechanics,a comparative analysis of the walking gait mode of a goat on different slopes was conducted.The uphill and downhill walking processes on different slopes(6°,18°and 36°)were recorded by a high speed video system.The experimental image results were processed and analyzed via SigmaScan software and MATLAB software.The characteristic parameters of locomotion gait on the different slopes and the angle change curves of each goat leg in the process of slope movement indicated that the goat performed tetrapod gait,static gait,ipsilateral gait and trot gait on different slopes.With the increase of gradient in the uphill process,the corresponding load factors of each leg were 0.65±0.15,0.75 and 0.645±0.205,whereas those in the downhill process were 0.70±0.08,0.66±0.06,and 0.685±0.125.Results showed that the load factors of each leg are higher than 0.5.The foreleg angle ofa(the angle of wrist joints),which ranges from 100°to 130°,is suitable for different slopes.However,the angle ofb(the angle between the thigh and the forward direction in the walking process of goat),which ranges from 99°to 109°,is suitable for the 6°slope,whereas the angle ranging from 46°to 91°is suitable for the 18°slope and 36°slope.For the hind leg,the angle ofa,which ranges from 105°to 153°,is suitable for the different slopes.The angle ofb,which ranges from 128°to 150°,is suitable for the different slopes.The research can provide a theoretical basis and experimental data for the design of biomimetic agricultural slope walking mechanism. | Zhang Fu Wang Wei Zhang Guoying Wang Jun Qiu Zhaomei Mao Pengjun | 2016 | International Journal of Agricultural and Biological Engineering2016，9，3： | 6 |
| 2 | Vacancy manipulating of molybdenum carbide MXenes to enhance Faraday reaction for high performance lithium-ion batteries显示文摘“Intrinsic”strategies for manipulating the local electronic structure and coordination environment of defect-regulated materials can optimize electrochemical storage performance.Nevertheless,the structure–activity relationship between defects and charge storage is ambiguous,which may be revealed by constructing highly ordered vacancy structures.Herein,we demonstrate molybdenum carbide MXene nanosheets with customized in-plane chemical ordered vacancies(Mo_(1.33)CT_(x)),by utilizing selective etching strategies.Synchrotron-based X-ray characterizations reveal that Mo atoms in Mo1.33CTx show increased average valence of+4.44 compared with the control Mo_(2)CT_(x).Benefited from the introduced atomic active sites and high valence of Mo,Mo_(1.33)CT_(x)achieves an outstanding capacity of 603 mAh·g^(−1)at 0.2 A·g^(−1),superior to most original MXenes.Li+storage kinetics analysis and density functional theory(DFT)simulations show that this optimized performance ensues from the more charge compensation during charge–discharge process,which enhances Faraday reaction compared with pure Mo_(2)CT_(x).This vacancy manipulation provides an efficient way to realize MXene’s potential as promising electrodes. | Xin Guo Changda Wang Wenjie Wang Quan Zhou Wenjie Xu Pengjun Zhang Shiqiang Wei Yuyang Cao Kefu Zhu Zhanfeng Liu Xiya Yang Yixiu Wang Xiaojun Wu Li Song Shuangming Chen Xiaosong Liu | 2022 | Nano Research Energy2022，1，3： | 2 |
| 3 | Biomass-derived hard carbon microtubes with tunable apertures for high-performance sodium-ion batteries显示文摘Sodium-ion batteries(SIBs)are considered the most up-and-coming complements for large-scale energy storage devices due to the abundance and cheap sodium.However,due to the bigger radius,it is still a great challenge to develop anode materials with suitable space for the intercalation of sodium ions.Herein,we present hard carbon microtubes(HCTs)with tunable apertures derived from low-cost natural kapok fibers via a carbonization process for SIBs.The resulted HCTs feature with smaller surface area and shorter Na+diffusion path benefitting from their unique micro-nano structure.Most importantly,the wall thickness of HCTs could be regulated and controlled by the carbonization temperature.At a high temperature of 1,600℃,the carbonized HCTs possess the smallest wall thickness,which reduces the diffusion barrier of Na+and enhances the reversibility Na+storage.As a result,the 1600HCTs deliver a high initial Coulombic efficiency of 90%,good cycling stability(89.4%of capacity retention over 100 cycles at 100 mA·g^(−1)),and excellent rate capacity.This work not only charts a new path for preparing hard carbon materials with adequate ion channels and novel tubular micro-nano structures but also unravels the mechanism of hard carbon materials for sodium storage. | Pin Song Shiqiang Wei Jun Di Jun Du Wenjie Xu Daobin Liu Changda Wang Sicong Qiao Yuyang Cao Qilong Cui Pengjun Zhang Liaobo Ma Jiewu Cui Yan Wang Yujie Xiong | 2023 | Nano Research2023，16，4： | 1 |
| 4 | High-yield production of a low-temperature-active polygalacturonase for papaya juice clarification显示文摘 | Tao Tu Kun Meng Yingguo Bai Pengjun Shi Huiying Luo Yaru Wang Peilong Yang Yuhong Zhang Wei Zhang Bin Yao | 2013 | Food Chemistry2013，，3： | 1 |
| 5 | Hollow Hierarchical SnO2-ZnO Composite Nanofibers with Heterostructure Based on Electrospinning Method for Detecting Methanol 显示文摘 | TANG Wei WANG Jing YAO Pengjun | 2014 | Sensors and Actuators B: Chemical2014，192，： | 1 |
| 6 | Angiotensin1-7 protects cardiomyocytes from hypoxia/reoxygenation-induced oxidative stress by preventing ROS-associated mitochondrial dysfunction and activating the Akt signaling pathway显示文摘 | Pengjun Zhao Fen Li Wei Gao Jing Wang Lijun Fu Yiwei Chen Meirong Huang | 2015 | Acta Histochemica2015，，8： | 1 |
| 7 | Simonol A and B,two novel sesqui-neoligans from the fruits of Illicium simonsii显示文摘 | YIN Pengjun WANG Junsong WEI Dandan | 2013 | Fitoterapia2013，12，88： | 1 |
| 8 | Circulation of Development Factors Promoted by Innovation of Land Management Under Background of Rural Vitalization:A Case Study of Tengtou Village in Zhejiang Province,China显示文摘Land is the space carrier for the existence and flow of other development factors.Activating rural land and promoting the circulation of other development factors through land management innovation is necessary to realize rural vitalization.This paper identifies the connotation of factor flow in the rural vitalization context,the action mechanism of land management innovation to boost the flow of development factors,the issues and obstacles restricting factor circulation,and the realization mechanism of the flow of development factors in rural vitalization.Based on the analytic paradigm constructed in the paper,the successful practice of promoting the flow of development factors through innovative land management in a model village is examined.The results show that:1)the unreasonable systems characterized by the land use system in rural areas are the main obstacles causing circulation issues in development factors.It is essential to engage in comprehensive reform to break down these long-lasting obstacles to the smooth flow of development factors.2)The land should play a leading role in the circulation of development factors in the background of rural vitalization;the main purpose of land management innovation is to activate the land factor,thereby promoting the circulation of other factors.3)The activated land factor will act as a‘trigger’to promote capital and technology in rural settings and use capital and technology to attract the inflow of talents and the return of migrant workers,whereby the population factor will act as a‘catalyst’for the cultivation of rural culture,bringing about the integration of various development factors.4)The innovation of land use and management,increased funding,and new technologies have brought multiple talents to Tengtou Village.The high-frequency mutual feedback between the village’s own and the external development factors resulted in its successful integration of industrial development. | WEI Pengjun LIU Yongqiang YAN Jinlong LI Meiting ZHANG Yingnan | 2023 | Chinese Geographical Science2023，33，5： | 0 |
| 9 | Cation-intercalated engineering and X-ray absorption spectroscopic characterizations of two dimensional MXenes显示文摘The geometrically multiplied development of 2D MXenes has already promoted the prosperity of various fields of scientific researches especially but not limited in energy storage and conversion.Notably,cation intercalation can improve the interlayer spacing of MXenes resulting in tunable physical and chemical properties.Moreover,the synchrotron radiation X-ray characterizations have also shown high potential on exploring the property and structu re of cation intercalated MXe nes.This review is mainly focused on the recent achievements of cation intercalated MXenes through different methods on energy storage systems.Synchrotron-based X-ray absorption spectroscopic characterizations are emphasized to probe the local coordination and electronic structure in intercalated MXenes.The outlook of cation intercalation on MXenes and their applications are also discus sed. | Changda Wang Shiqiang Wei Pengjun Zhang Kefu Zhu Pin Song Shuangming Chen Li Song | 2020 | Chinese Chemical Letters2020，31，4： | 0 |
| 10 | Interface regulation of Cu_(2)Se via Cu–Se–C bonding for superior lithium-ion batteries显示文摘Transition metal selenides have aroused great attention in recent years due to their high theoretical capacity.However,the huge volume fluctuation generated by conversion reaction during the charge/discharge process results in the significant electrochemical performance reduction.Herein,the carbon-regulated copper(I)selenide(Cu_(2)Se@C)is designed to significantly promote the interface stability and ion diffusion for selenide electrodes.The systematic X-ray spectroscopies characterizations and density functional theory(DFT)simulations reveal that the Cu–Se–C bonding forming on the surface of Cu2Se not only improves the electronic conductivity of Cu_(2)Se@C but also retards the volume change during electrochemical cycling,playing a pivotal role in interface regulation.Consequently,the storage kinetics of Cu_(2)Se@C is mainly controlled by the capacitance process diverting from the ion diffusion-controlled process of Cu2Se.When employed this distinctive Cu_(2)Se@C as anode active material in Li coin cell configuration,the ultrahigh specific capacity of 810.3 mA·h·g^(−1)at 0.1 A·g^(−1)and the capacity retention of 83%after 1,500 cycles at 5 A·g^(−1)is achieved,implying the best Cu-based Li^(+)-storage capacity reported so far.This strategy of heterojunction combined with chemical bonding regulation opens up a potential way for the development of advanced electrodes for battery storage systems. | Kefu Zhu Shiqiang Wei Quan Zhou Shuangming Chen Yunxiang Lin Pengjun Zhang Yuyang Cao Changda Wang Yixiu Wang Yujian Xia Dengfeng Cao Zeinab Mohamed Xin Guo Xiya Yang Xiaojun Wu Li Song | 2023 | Nano Research2023，16，2： | 0 |
| 11 | M1 macrophage-related gene model for NSCLC immunotherapy response prediction显示文摘Patients diagnosed with non-small cell lung cancer(NSCLC)have a limited lifespan and exhibit poor immunotherapy outcomes.M1 macrophages have been found to be essential for antitumor immunity.This study aims to develop an immunotherapy response evaluation model for NSCLC patients based on transcription.RNA sequencing profiles of 254 advanced-stage NSCLC patients treated with immunotherapy are downloaded from the POPLAR and OAK projects.Immune cell infiltration in NSCLC patients is examined,and thereafter,different coexpressed genes are identified.Next,the impact of M1 macrophage-related genes on the prognosis of NSCLC patients is investigated.Six M1 macrophage coexpressed genes,namely,NKX2-1,CD8A,SFTA3,IL2RB,IDO1,and CXCL9,exhibit a strong association with the prognosis of NSCLC and serve as effective predictors for immunotherapy response.A response model is constructed using a Cox regression model and Lasso Cox regression analysis.The M1 genes are validated in our TD-FOREKNOW NSCLC clinical trial by RT-qPCR.The response model shows excellent immunotherapy response prediction and prognosis evaluation value in advanced-stage NSCLC.This model can effectively predict advanced NSCLC prognosis and aid in identifying patients who could benefit from customized immunotherapy as well as sensitive drugs. | Sifan Wu Qiqi Sheng Pengjun Liu Zhe Jiao Jinru Lv Rong Qiao Dongkun Xie Zanhan Wang Jiamei Ge Penghui Li Tiaoxia Wei Jie Lei Jieyi Fan Liang Wang | 2024 | Acta Biochimica et Biophysica Sinica2024，56，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员