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| 1 | Cobalt single atom site catalysts with ultrahigh metal loading for enhanced aerobic oxidation of ethylbenzene显示文摘The oxidation of hydrocarbons to produce high value-added compounds(ketones or alcohols)using oxygen in air as the only oxidant is an efficient synthetic strategy from both environmental and economic views.Herein,we successfully synthesized cobalt single atom site catalysts(Co SACs)with high metal loading of 23.58 wt.%supported on carbon nitride(CN),which showed excellent catalytic properties for oxidation of ethylbenzene in air.Moreover,Co SACs show a much higher turn-over frequency(19.6 h^(−1))than other reported non-noble catalysts under the same condition.Comparatively,the as-obtained nanosized or homogenous Co catalysts are inert to this reaction.Co SACs also exhibit high selectivity(97%)and stability(unchanged after five runs)in this reaction.DFT calculations reveal that Co SACs show a low energy barrier in the first elementary step and a high resistance to water,which result in the robust catalytic performance for this reaction. | Yu Xiong Wenming Sun Yunhu Han Pingyu Xin Xusheng Zheng Wensheng Yan Juncai Dong Jian Zhang Dingsheng Wang Yadong Li | 2021 | Nano Research2021，14，7： | 20 |
| 2 | Aflatoxin B1, zearalenone and deoxynivalenol in feed ingredients and complete feed from different Province in China显示文摘Background: The current study was carried out to provide a reference for monitory of aflatoxin B_1(AFB_1),zearalenone(ZEN) and deoxynivalenol(DON) contamination in feed ingredients and complete feeds were collected from different Province in China from 2013 to 2015.Methods: A total of 443 feed ingredients, including 220 corn, 24 wheat, 24 domestic distillers dried grains with soluble(DDGS), 55 bran, 20 wheat shorts and red dog, 37 imported DDGS, 34 corn germ meal and 29 soybean meal as well as 127 complete feeds including 25 pig complete feed(powder), 90 pig complete feed(pellet), six duck complete feed and six cattle complete feed were randomly collected from different Province in China,respectively, by high-performance chromatography in combined with UV or fluorescence analysis.Results: The incidence rates of AFB_1, ZEN and DON contamination of feed ingredients and complete feeds were80.8, 92.3 and 93.9 %, respectively. The percentage of positive samples for DON ranged from 66.7 to 100 %.Domestic DDGS and imported DDGS presented the most serious contamination AFB_1, ZEN and DON contamination levels of feeds ranged from 61.5 to 100 %, indicated that serious contamination over the studied 3-year period.Conclusion: The current data provide clear evidence that AFB_1, ZEN and DON contamination of feed ingredients and complete feeds in different Province in China is serious and differs over past 3-year. The use of corn, domestic DDGS, imported DDGS and corn germ meal, which may be contaminated with these three mycotoxins, as animal feed may triggered a health risk for animal. Feeds are most contaminated with DON followed by ZEN and AFB_1.Mycotoxins contamination in feed ingredients and complete feeds should be monitored routinely in China. | Li Wu Jianjun Li Yunhu Li Tiejun Li Qinghua He Yulong Tang Hongnan Liu Yongteng Su Yulong Yin Peng Liao | 2017 | Journal of Animal Science and Biotechnology2017，8，2： | 13 |
| 3 | Improved Hybrid Robust Control Method for the Electromechanical Actuator in Aircrafts显示文摘In the flight process of aircrafts, their electromechanical actuators(EMA) must have the ability of enduring uncertainties caused by factors such as load disturbance, the variation of work temperature and the EMA’s nonlinearity. At present, in order to increase the EMA’s robustness on the uncertainties, the H∞ control method has been applied in aircrafts. The major problems with standard H∞ control lie in the large overshoot of step response and the high orders of the controller. For the purpose of addressing the two problems, this paper investigates several kinds of robust control strategies of the EMA. A mathematical model of the EMA is first built, and then with MATLAB software a H∞ controller and an improved hybrid robust controller composed of a reduced order H∞ controller and a lead compensator are designed. In order to make a scientific comparison of the control effects of H∞ controller, hybrid controller and classic proportion-integral-differential(PID) controller, a simulation research is made in respect of the open loop frequency response and the closed loop step response of the three controllers. For comparing the robustness of the three controllers, the load torque is entered as a disturbance and the disturbance response of error and control input are thus obtained. The experiments with the three controllers are also conducted. Through giving the EMA a command and a disturbance torque successively, the transient response and disturbing process of EMA are recorded. The simulation and experiment results show that with the help of the hybrid controller, the EMA not only guarantees good dynamic characteristics, but also has strong robustness of disturbance rejection. Therefore, the excogitated H∞ hybrid control method effectively solves the problem of large overshoot in dynamic response, and moderately meets the requirement of overcoming the uncertainties in the EMA of aircrafts. | LU Hao LI Yunhu TIAN Shengli NIE Zhenjin | 2010 | Chinese Journal of Mechanical Engineering2010，23，4： | 8 |
| 4 | Based on the risk of microgrid distributed generation standby configuration decisions显示文摘 | Luo Yunhu Chen Hainiu Li Lei | 2011 | Power System Technolozv2011，35，8： | 1 |
| 5 | Development of Bioimplants with 2D, 3D, and 4D Additive Manufacturing Materials显示文摘Over the past 30 years,additive manufacturing(AM)has developed rapidly and has demonstrated great potential in biomedical applications.AM is a materials-oriented manufacturing technology,since the solidification mechanism,architecture resolution,post-treatment process,and functional application are based on the materials to be printed.However,3D printable materials are still quite limited for the fabrication of bioimplants.In this work.2D/3D AM materials for bioimplants are reviewed.Furthermore,inspired by Tai Chi,a simple yet novel soft/rigid hybrid 4D AM concept is advanced to develop complex and dynamic biological structures in the human body based on 4D printing hybrid ceramic precursor/ceramic materials that were previously developed by our group.With the development of multi-material printing technology,the development of bioimplants and soft/rigid hybrid biological structures with 2D/3D/4D AM materials can be anticipated. | Guo Liu Yunhu He Pengchao Liu Zhou Chen Xuliang Chen Lei Wan Ying Li Jian Lu | 2020 | Engineering2020，6，11： | 1 |
| 6 | Nanostructured CuO directly grown on copper foam and their supercapacitance performance显示文摘 | Yunhu Li Sha Chang Xiuling Liu Jichun Huang Jinling Yin Guiling Wang Dianxue Cao | 2012 | Electrochimica Acta2012，，： | 1 |
| 7 | Single-atom electrocatalysis: a new approach to in vivo electrochemical biosensing显示文摘Modulation of interfacial electron transfer has been proven to pave a new approach to in vivo electrochemical monitoring of brain chemistry;however,designing and establishing highly efficient electrocatalytic scheme towards neurochemicals remain a longstanding challenge.Here,we find that recently established single-atom catalyst(SAC)can be used for catalyzing the electrochemical process of physiologically relevant chemicals and thus offers a new avenue to in vivo electrochemical biosensing.To prove this new concept,we used Co single-atom catalyst(Co-SAC),in which the atomic active sites are dispersed in ordered porous N-doping carbon matrix at atomic level,as an example of SACs for analyzing glucose as the physiologically relevant model chemicals.We found that Co-SAC catalyzes the electrochemical oxidation of hydrogen peroxide(H2O2)at a low potential of ca.+0.05 V(vs.Ag/AgCl).This property was further used for developing an oxidase-based glucose biosensor that was used subsequently as a selective detector of an online electrochemical system(OECS)for continuous monitoring of microdialysate glucose in rat brain.The OECS with Co-SAC-based glucose biosensor as the online detector was well responsive to glucose without interference from other electroactive species in brain microdialysate.This study essentially offers a new approach to in vivo electrochemical analysis with SACs as electrocatalysts to modulate interfacial electron transfer. | Hanfeng Hou Junjie Mao Yunhu Han Fei Wu Meining Zhang Dingsheng Wang Lanqun Mao Yadong Li | 2019 | Science China Chemistry2019，62，12： | 1 |
| 8 | Zero-waste emission design of sustainable and programmable actuators显示文摘Moisture-responsive actuators are widely used as energy-harvesting devices due to their excellent ability to spontaneously and continuously convert external energy into kinetic energy.However,it remains a challenge to sustainably synthesize moisture-driven actuators.Here,we present a sustainable zero-waste emission methodology to prepare soft actuators using carbon nano-powders and biodegradable polymers through a water evaporation method.Due to the water solubility and recyclability of the matrixes employed here,the entire synthetic process achieves zero-waste emission.Our composite films featured strong figures of merit and capabilities with a 250◦maximum bending angle under 90%relative humidity.Programmable motions and intelligent bionic applications,including walkers,smart switches,robotic arms,flexible excavators,and hand-shaped actuators,were further achieved by modulating the geometry of the actuators.This sustainable method for actuators’fabrication has great potential in large-scale productions and applications due to its advantages of zero-waste emission manufacturing,excellent recyclability,inherent adaptive integration,and low cost. | Linchao Sun Lixuan Che Ming Li William George Neal Xu Leng Yaojia Long Yifeng Jia Yunhu Gao Matteo Palma Yao Lu | 2023 | SusMat2023，3，2： | 0 |
| 9 | Genome-Wide Dissection of Quan 9311A Breeding Process and Application Advantages显示文摘Germplasm resource innovation is a crucial factor for cultivar development,particularly within the context of hybrid rice breeding based on the three-line system.Quan 9311A,a cytoplasmic male sterile(CMS)line,has been successfully cultivated using rice restoration materials and extensively employed as a female parent in hybrid breeding program in China.This line was developed by crossing the CMS line Zhong 9A with a two-line restorer line 93-11,with the intention of eliminating the restoring ability of 93-11 while retaining the sterility gene WA352c from Zhong 9A.Quan 9311A effectively amalgamates the most favorable agronomic traits from both parental lines.In this study,the relationship between phenotypic characteristics and the known functional genes of Quan 9311A were analyzed using the rice genome navigation technology based on whole-genome sequencing.The findings revealed that Quan 9311A harbors multiple superior alleles from both 93-11 and Zhong 9A,providing exceptional agronomic traits that are unavailable in earlier CMS lines.Despite the removal of the fertility restorer gene Rf3 from 93-11,numerous chromosomal segments from 93-11 persist in the Quan 9311A genome.Furthermore,the hybrid rice Quanyousimiao(QYSM)and the restorer line Wushansimiao(WSSM)were used as examples to illustrate the important role of Quan 9311A as the female parent in heterosis.It was found that QYSM carries a great number of superior alleles,which accounts for its high grain yield and wide adaptability.These insights not only advanced the utilization of hybrid rice pairing groups but also provided guidance for future breeding endeavors.The study introduced innovative concepts to further integrate genomics with traditional breeding techniques.Ultimately,Quan 9311A signified a significant milestone in rice breeding technology,opening up novel avenues for hybrid rice development. | LI Qianlong FENG Qi WANG Heqin KANG Yunhai ZHANG Conghe DU Ming ZHANG Yunhu WANG Hui CHEN Jinjie HAN Bin FANG Yu WANG Ahong | 2023 | Rice science2023，30，6： | 0 |
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