|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Robust iterative learning control for nonlinear systems with measurement disturbances显示文摘The iterative learning control (ILC) has been demon-strated to be capable of considerably improving the tracking perfor-mance of systems which are affected by the iteration-independent disturbance. However, the achievable performance is greatly degraded when iteration-dependent, stochastic disturbances are pre-sented. This paper considers the robustness of the ILC algorithm for the nonlinear system in presence of stochastic measurement disturbances. The robust convergence of the P-type ILC algorithm is firstly addressed, and then an improved ILC algorithm with a decreasing gain is proposed. Theoretical analyses show that the proposed algorithm can guarantee that the tracking error of the nonlinear system tends to zero in presence of measurement dis-turbances. The analysis is also supported by a numerical example. | Xuhui BuI FashanYu Zhongsheng Hou Haizhu Yang | 2012 | Journal of Systems Engineering and Electronics2012，23，6： | 6 |
| 2 | Echinocystic acid induces apoptosis in HL-60 cells through mitochondria-mediated death pathway显示文摘 | Xuhui Tong Shigang Lin Makoto Fujii De-Xing Hou | 2004 | Cancer Letters2004，，1： | 1 |
| 3 | Fetal umbilical vein transplantation for the repair of middle cerebral artery injury显示文摘It is necessary to investigate the longitudinal tensile mechanical characteristics of the middle cerebral artery and the fetal umbilical vein prior to applying fetal umbilical vein transplantation fo repair of injured middle cerebral artery.Fifteen fresh fetal umbilical vein specimens and 15 norma human fresh cadaver middle cerebral artery specimens were collected for longitudinal tensile testing at the speed of 0.5 mm/min and at normal human temperature.The results showed that under 16.0 kPa physiological stress,the strain value of fetal umbilical vein specimens was larger while the maximal stress and elastic modulus values were less than those of middle cerebral artery specimens.Our findings indicate that fetal umbilical vein has good elastic properties and the stress-strain curve of the fetal umbilical vein is similar to that of the middle cerebral artery.Feta umbilical vein transplantation can,therefore,potentially repair the injured middle cerebral artery. | Xuhui Hou Yi Yuan Jian Yin Songbai Yang Lili Xie Shiji Wang | 2013 | Neural Regeneration Research2013，8，34： | 1 |
| 4 | Effects of brachial plexus injury anastomosis simulation on biomechanical properties of adult brachial plexus显示文摘BACKGROUND:Previous studies of peripheral nerve mechanical properties in animals have utilized one-dimensional drawing methods. OBJECTIVE:To analyze the effects of brachial plexus injury anastomosis simulation on biomechanical properties of adult brachial plexus by observing tensile mechanical properties,stress relaxation,and creep deformation of the brachial plexus in normal human cadavers and brachial plexus from simulated brachial plexus injury anastomosis samples. DESIGN,TIME AND SETTING:The in vitro experiment was performed at the Mechanics Experimental Center,Jilin University,China from April to May 2007. MATERIALS:A total of six adult,male cadavers,who had died from acute trauma,and were aged 20-29 years,were supplied by the Research Room of Anatomy,Medical Department,Jilin University,China. AG-10TA Universal Material Testing Machine (Shimadzu,Japan) was used in this study. METHODS:A total of 36 samples of fresh brachial plexus were collected from the cadavers,comprising 12 C5 nerve roots,12 C6 nerve roots at the left and right sides of the superior truck,and 12 C7 nerve roots at the middle truck. The C5 and C6 nerve roots were processed into 50 samples and the C7 nerve roots into 24 samples. A total of 36 C5 and C6 nerve root samples were randomly assigned to a non-surgery control group (n = 18) and brachial plexus injury anastomosis simulation group (n = 18). Brachial plexus injury simulation anastomosis samples underwent an incision in the middle,and then received anastomosis. Samples in both groups underwent a tension test at 5 mm/min on the AG-10TA universal material testing machine. A total of 24 sam-ples from the C6 superior trunk and C7 middle trunk of the brachial plexus were subjected to stress relaxation and creep tests. Test duration was 7 200 seconds. A total of 100 data points were collected and analyzed using a normalization method. MAIN OUTCOME MEASURES:The following parameters were measured:tension maximum displacement,maximum load,maximum stress,maximum strain and stress-strain curve,stress relaxation at 7 200 seconds,creep deformation at 7 200 seconds,stress relaxation,and creep curve in the non-surgery control group and brachial plexus injury simulation anastomosis group. RESULTS:The tension maximum load of brachial plexus was (140.36 ± 30.50) N,maximum stress was (10.67 ± 2.52) MPa,maximum displacement was (7.78 ± 1.48) mm,and maximum strain was (31.64 ± 5.32)% in the non-surgery control group. The tension maximum load of brachial plexus was (93.23 ± 20.65) N,maximum stress was (7.09 ± 1.57) MPa,maximum displacement was (6.13 ± 0.86) mm,and maximum strain was (24.55 ± 3.45)% in the brachial plexus injury simulation anastomosis group. The above-mentioned indices were greater in the non-surgery control group than in the brachial plexus injury simulation anastomosis group (P < 0.01). Stress relaxation at 7 200 seconds was 2.07 MPa and 2.11 MPa,respectively,in the non-surgery control and brachial plexus injury simulation anastomosis groups. Creep deformation at 7 200 seconds was 4.68% and 3.52%,respectively,in the non-surgery control and brachial plexus injury simulation anastomosis groups. CONCLUSION:Decreased tension maximum load,maximum displacement,maximum stress,maximum strain,and creep deformation at 7 200 seconds affected the biomechanical properties of the brachial plexus following brachial plexus injury. | Xuhui Hou Xinying Li Songbai Yang Jian Yin Hongshun Ma | 2010 | Neural Regeneration Research2010，5，6： | 1 |
| 5 | Hepatic RIG-I Predicts Survival and Interferon-α Therapeutic Response in Hepatocellular Carcinoma显示文摘 | Jin Hou Ye Zhou Yuanyuan Zheng Jia Fan Weiping Zhou Irene O.L. Ng Huichuan Sun Lunxiu Qin Shuangjian Qiu Joyce M.F. Lee Chung-Mau Lo Kwan Man Yuan Yang Yun Yang Yingyun Yang Qian Zhang Xuhui Zhu Nan Li Zhengxin Wang Guoshan Ding Shi-Mei Zhuang Limin Zheng | 2013 | Cancer Cell2013，，： | 1 |
| 6 | The Grouping of the Strike-Slip Offset Data and Its Relation With the Seismicity Along Middle Segment of the Xiaojiang Active Fault显示文摘The data of the strike-slip offset along the Xiaojiang active fault can be obviously grouped.The groups of small orders of magnitude data within 100 m show clear linear characteristics of increments between 8 m and 12 m,which indicates that the segments of the Xiaojiang active fault is of characteristic seismicity and the distribution of the values of each group indicates that there are smaller earthquakes and creep between two large earthquakes along each segment of the Xiaojiang active fault.The interval between two characteristic large earthquakes can be calculated with the increments for two groups of slip data and the slip rate of the fault.Furthermore,the frequency of smaller earthquakes can also be estimated by comparing the distributions of the displacements of the large earthquakes with the distributions of the values of each group of data.The groups of large slip displacements show that there is close relationship between the records of the displacements of the fault and the changes of the | Shen Jun,Wang Yipeng,Song Fangmin,Yu Weixian,Cao Zhongquan,Shen Xuhui,Hou Xueying,and Li ZhixiangInstitute of Geology,SSB,Beijing 100029,ChinaInstitute of Earthquake Engineering,Seismological Bureau of Yunnan Province,Kunming 650204,China | 1998 | Earthquake Research in China1998，12，2： | 0 |
| 7 | Detecting the intrinsic Baldwin Effect of the optical FeII complex in Luminous Seyfert 1 Galaxy Fairall 9显示文摘We analyze the optical spectra of Fairall 9,a luminous Seyfert 1 galaxy.They are obtained from the AGN Watch program that has monitored this object for 9 months.The flux and variation of the optical FeII complex is measured using multi-component profile modeling with FeⅡ templates.A convincing intrinsic Baldwin Effect(BEff) of optical FeⅡ emission blends in Fairall 9 is discovered for the first time.The variation of FeⅡ/Hβ(RFe) in Fairall 9 is obtained.We also detect a marginal anti-correla tion between RFe and the continuum flux in its spectra.This anti-correlation and the relatively broad profile of Hβ in this galaxy support the dichotomy reported by Wang et al.(2005). | HAN XuHui WANG Jing WEI JianYan YANG DaWei HOU JinLiang | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，2： | 0 |
| 8 | Al-empowered integrative structural characterization of m^(6)A methyltransferase complex显示文摘Dear Editor,N^(6)-methyladenosine(m^(6)A)is the most abundant and prevalent internal modification in mRNA.^(1)In mammals,m^(6)A exerts pivotal roles in posttranscriptional regulation and its dysregulation is implicated in various diseases including cancer. | Xuhui Yan Kai Pei Zeyuan Guan Feiqing Liu Junjun Yan Xiaohuan Jin Qiang Wang Mengjun Hou Chun Tang Ping Yin | 2022 | Cell Research2022，32，12： | 0 |
| 9 | Event-Triggered Asymmetric Bipartite Consensus Tracking for Nonlinear Multi-Agent Systems Based on Model-Free Adaptive Control显示文摘In this paper,an asymmetric bipartite consensus problem for the nonlinear multi-agent systems with cooperative and antagonistic interactions is studied under the event-triggered mechanism.For the agents described by a structurally balanced signed digraph,the asymmetric bipartite consensus objective is firstly defined,assigning the agents'output to different signs and module values.Considering with the completely unknown dynamics of the agents,a novel event-triggered model-free adaptive bipartite control protocol is designed based on the agents'triggered outputs and an equivalent compact form data model.By utilizing the Lyapunov analysis method,the threshold of the triggering condition is obtained.Subsequently,the asymptotic convergence of the tracking error is deduced and a sufficient condition is obtained based on the contraction mapping principle.Finally,the simulation example further demonstrates the effectiveness of the protocol. | Jiaqi Liang Xuhui Bu Lizhi Cui Zhongsheng Hou | 2023 | IEEE/CAA Journal of Automatica Sinica2023，10，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员