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| 1 | Ceria promotion on the potassium resistance of MnOx/TiO, SCR catalysts: an experimental and DFT study显示文摘 | Peng Yue Li Junhua Si Wenzhe Li Xiang Shi Wenbo Luo Jinming Fu Jie Crittenden J Hao Jiming | 2015 | Chemical Engineering Journal2015,269,: | 1 |
| 2 | Convective clouds detection in satellite cloud image using fast fuzzy support vector machine显示文摘Support vector machine(SVM)is easily affected by noises and outliers,and its training time dramatically increases with the growing in number of training samples.Satellite cloud image may easily be deteriorated by noises and intensity non-uniformity with a huge amount of data needs to be processed regularly,so it is hard to detect convective clouds in satellite image using traditional SVM.To deal with this problem,a novel method for detection of convective clouds was proposed based on fast fuzzy support vector machine(FFSVM).FFSVM was constructed by eliminating feeble samples and designing new membership function as two aspects.Firstly,according to the distribution characteristics of fuzzy inseparable sample set and the fact that the classification hyper-plane is only determined by support vectors,this paper uses SVDD,Gaussian model and border vector extraction model comprehensively to design a sample selection method in three steps,which can eliminate most of redundant samples and keep possible support vectors.Then,by defining adaptive parameters related to attenuation rate and critical membership on the basis of the distribution characteristics of training set,an adaptive membership function is designed.Finally,the FFSVM is trained by the remaining samples using adaptive membership function to detect convective clouds.The experiments on FY-2D satellite images show that the proposed method,compared with traditional FSVM,not only remarkably reduces training time,but also further improves the accuracy of convective clouds detection. | Fei Gong Wei Jin Wenzhe Tian Randi Fu Caifen He | 2017 | 光电工程2017,44,9: | 1 |
| 3 | 利用超构表面减少介子波导的串扰显示文摘宽波段低损耗的单模传输方式使得介质型波导(dielectric waveguides,DWs)在上个世纪得到了广泛研究。传统的介质波导通常由低介电常数的轻量化材料组成,能量约束差,导致相邻波导间具有严重的串扰影响,阻碍了系统的集成化和微型化。 | Fei Gong Wei Jin Wenzhe Tian Randi Fu and Caifen He | 2017 | 光电工程2017,44,9: | 0 |
| 4 | Modeling and Kinematics Simulation of Hydro-mechanical Split Path Steering Device of Tracked Vehicle Based on CATIA显示文摘Based on the working principle of hydro-mechanical split path of tracked vehicle,a operating gear was developed which was controlled by steering wheel and match with transmission case.Then CATIA software was used to build the three-dimensional model and carry out dynamic simulation of the mechanism.The result indicates that the design of the mechanism fulfills the request. | LI Wenzhe SUN Yong FU Tianzhi ZHANG Hongqiong | 2008 | Journal of Northeast Agricultural University(English Edition)2008,15,1: | 0 |
| 5 | Effectiveness of Xiaoyao capsule(逍遥丸)on sleep disorders and mood disturbance in patients in recovery from coronavirus disease 2019:a randomized controlled trial显示文摘OBJECTIVE:To study the efficacy of Xiaoyao capsule(逍遥丸)in improving the clinical symptoms of sleep and mood disorders during recovery from coronavirus disease 2019(COVID-19).METHODS:The study cohort comprised 200 patients with sleep and mood disorders during recovery from COVID-19.Patients were randomized into the control group and the experimental group in a 1:1 ratio by blocked randomization.The patients received either Xiaoyao capsule(experimental group)or a placebo Xiaoyao capsule(control group)for 2 weeks.The improvements in the Traditional Chinese Medicine(TCM)syndrome scales,total effective rates,and disappearance rates of irritability,anxiety,and poor sleep were compared between the two groups.RESULTS:The TCM syndrome pattern scales,total effective rates,and disappearance rates of irritability,anxiety,and poor sleep did not significantly differ between the experimental group versus the control group in the full analysis set and the per protocol set after 1 and 2 weeks of treatment(P>0.05).CONCLUSIONS:Xiaoyao capsule do not significantly improve the clinical symptoms of sleep and mood disorders in patients in recovery from COVID-19. | YANG Cunqing LIAN Fengmei YANG Guiping HUANG Yufeng ZHANG Shuangbin WANG Jianghua ZHOU Jing GUO Dongqing SHEN Chuanyun YE Tiansong FU Aojie LI Xiaoli CHEN Le ZHANG Huifeng TU Qiyin WANG Ying YANG Wenzhe TONG Xiaolin BA Yuanming | 2023 | Journal of Traditional Chinese Medicine2023,43,2: | 0 |
| 6 | Ascent Trajectory Optimization for Air-Breathing Hypersonic Vehicles Based on IGS-MPSP显示文摘This paper proposes an improved Generalized Quasi-Spectral Model Predictive Static Programming(GS-MPSP)algorithm for the ascent trajectory optimization for hypersonic vehicles in a complex°ight environment.The proposed method guarantees the satisfaction of constraints related to the state and control vector while retaining its high computational e±ciency.The spectral representation technique is used to describe the control variables,which reduces the number of decision variables and makes the control input smooth enough.Through Taylor expansion,the constraints are transformed into an inequality containing only decision variables,such that it can be added into GS-MPSP framework.By Gauss quadrature collocation method,only a few collocation points are needed to solve the sensitivity matrix,which greatly accelerates the calculation.Subsequently,the analytical expression is obtained by combining the static optimization with the penalty function method.Finally,the simulation results demonstrate that the proposed improved GS-MPSP algorithm can achieve both high computational e±-ciency and high terminal precision under the constraints.. | Lei Liu Qianwei He Bo Wang Wenzhe Fu Zhongtao Cheng Yongji Wang | 2021 | Guidance, Navigation and Control2021,1,2: | 0 |
| 7 | Study on control mechanism for turning of tracked vehicles with twin driving显示文摘Turning mechanism is important assemblies for tracked vehicles.Turning performance is important evaluating indicator. The performance of the turning mechanism directly affect the mobility and productivity of the crawler.However,there are still some problems crying out for solutions in superior turning mechanism for vehicle engineering area.Composition and performance of turning system in agricultural tracked vehicles matched with twin driving differential turning mechanism was introduced,which adopted quiet hydraulic double pumps and double motors,took advantage of flexibility greatly for track vehicle turning and benefit for handling used steering wheel. | SUN Yong LI Wenzhe FU Tianzhi ZHANG Hongqiong | 2007 | Journal of Northeast Agricultural University(English Edition)2007,14,4: | 0 |