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Acta Mechanica Solida Sinica 2020年第6期33卷 731-743页

作者： Kefan Xu Yewei Zhang Yunpeng Zhu Jian Zang Liqun Chen College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China department of automatic control and Systems Engineering Sheffield UniversityMapping StreetSheffield SI 3JDUK harbin institute of technology Shenzhen 518055China

In order to improve the harsh dynamic environment experienced by heavy rockets during different external excitations,this study presents a novel active variable stiffness vibration isolator(AVS-VI)used as the vibration isolation device to reduce excessive vibration of the whole-spacecraft isolation *** AVS-VI is composed of horizontal stiffness spring,positive stiffness spring,parallelogram linkage mechanism,piezoelectric actuator,acceleration sensor,viscoelastic damping,and PID active *** on the AVS-VI,the generalized vibration transmissibility determined by the nonlinear output frequency response functions and the energy absorption rate is applied to analyze the isolation performance of the whole-spacecraft system with *** AVS-VI can conduct adaptive vibration suppression with variable stiffness to the whole-spacecraft system,and the analysis results indicate that the AVS-VI is efTective in reducing the extravagant vibration of the whole-spacecraft system,where the vibration isolation is decreased up to above 65%under different acceleration ***,different parameters of AVS-VI are considered to optimize the whole-spacecraft system based on the generalized vibration transmissibility and the energy absorption rate.

关键词： Vibration isolation Active variable stiffness vibration isolator Nonlinear output frequency response functions(NOFRFs) Transmissibility

Evaluation of anti-fouling performance for ion-rod water treater with automatic dynamic simulator of fouling

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化工学报 2005年第4期56卷 668-671页

作者：孙灵芳杨善让秦裕琨徐志明 Power Engineering and Engineering Thermophysics Postdoctoral Workstation Harbin Institute of Technology Harbin 150001HeilongjiangChina Energy Conservation and Measurement-control Technique Research Center Northeast China Institute of Electric Power EngineeringJilin 132044JilinChina Power Engineering and Engineering Thermophysics Postdoctoral Workstation Harbin Institute of Technology Harbin 150001HeilongjiangChina

The application of a novel automatic Dynamic Simulator of Fouling (ADSF) to evaluate the effectiveness of ion-rod water treater is *** effects of some parameters of the water treater were studied with an ADSF made according to patented technology, and orthogonal experimental design was adopted with the use of artificial hard *** results validated that the ion-rod water treater could mitigate fouling,and the anti-fouling efficiency varies with the test *** anti-fouling efficiency of treater increased with the increase of flow velocity in the range of 0.8—1.2 m·s -1 and output voltage in the range of 7500—15000 *** efficiency weat up initially, and then went down with the increase in *** rough surface of ion-rod was superior to the smooth *** order of influence on treater performance with respect to these factors was as follows: water hardness, roughness of surface, flow velocity and output *** research also provided a guide to improving the performance of ion-rod water treater.

关键词：污垢离子棒水处理器阻垢性能

Continuous calibration of inertial platform drifting error parameters

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Journal of harbin institute of technology(New Series) 2000年第3期7卷 24-26页

作者：付振宪邓正隆裴听国 control department Harbin Institute of Technology Harbin 150001 China Sixteenth institute Aerospace Corporation of China Xi'an 710001 China

Presents a continuous inertial platform drifting test process to simplify the operation of experiment and eliminate the difficulty of Kalman filter’s parameter setting up with the previous discrete multi position tes... 详细信息

关键词： inertial platform drifting test parameter identification Kalman filtering.

Memristive effects on an improved discrete Rulkov neuron model

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Science China(Technological Sciences) 2023年第11期66卷 3153-3163页

作者： BAO Han LI KeXin MA Jun HUA ZhongYun XU Quan BAO BoCheng School of Microelectronics and control Engineering Changzhou UniversityChangzhou 213159China department of Physics Lanzhou University of TechnologyLanzhou 730050China School of Computer Science and technology Harbin Institute of TechnologyShenzhenShenzhen 518055China

A change in neuronal-action potential can generate a magnetically induced current during the release and propagation of intracellular *** better characterize the electromagnetic-induction effect,this paper presents an improved discrete Rulkov(ID-Rulkov)neuron model by coupling a discrete model of a memristor with sine memductance into a discrete Rulkov neuron *** ID-Rulkov neuron model possesses infinite invariant points,and its memristor-induced stability effect is evaluated by detecting the routes of period-doubling and Neimark-Sacker *** investigated the memristor-induced dynamic effects on the neuron model using bifurcation plots and firing ***,we theoretically expounded the memristor initial-boosting mechanism of infinite coexisting *** results show that the ID-Rulkov neuron model can realize diverse neuron firing patterns and produce hyperchaotic attractors that are nondestructively boosted by the initial value of the memristor,indicating that the introduced memristor greatly benefits the original neuron *** hyperchaotic attractors initially boosted by the memristor were verified by hardware experiments based on a hardware *** addition,pseudorandom number generators are designed using the ID-Rulkov neuron model,and their high randomness is demonstrated based onstrict test results.

关键词： neuron model invariant point memristive effect complex dynamics pseudorandom number generators

Novel approach to harmonic control for Class F power amplifier with high power added efficiency

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仪器仪表学报 2007年第7期28卷 1176-1179页

作者： Jin Boshi Wu Qun Yang Guohui Kim Bumman School of Electronics and Information technology Harbin Institute of Technology Harbin 150001 China department of Electronics and Electrical Engineering Pohang University of Science and Technology Pohang South Korea 790784

This paper presents a new topology to implement Class F power amplifier for eliminating the on-resistance (R_(ON))*** time-domain and frequency-domain voltage and current waveforms for Class F amplifier are ana- lyzed using Fourier series analysis *** the on-resistance effect,the formulas of the efficiency,output power,dc power dissipation,and fundamental load impedance are given from ideal current and voltage *** experimental verification,we designed and implemented a Class F power amplifier,which operates at 850 MHz using MGaAs/GaAs Heterostructure FET(HFET)device,and analyzed the measurement *** results show that the maximum PAE of 67% can be achieved at 28 dBm output power level.

关键词： F类功率放大器功效谐波控制电阻傅里叶级数

Real-world data on ALK rearrangement test in Chinese advanced non-small cell lung cancer(RATICAL):a nationwide multicenter retrospective study

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Cancer Communications 2024年第9期44卷 992-1004页

作者： Lin Li Wencai Li ChunyanWu Yanfeng Xi Lei Guo Yuan Ji Lili Jiang Ji Li Jingping Yun Gang Chen Yuan Li Yueping Liu DianbinMu Yuchen Han Leina Sun Qingxin Xia Xiaodong Teng Nanying Che WeiWu Xueshan Qiu Chao Liu Xiaochu Yan Daiqiang Li Zhihong Zhang ZheWang Yujun Li ZhengWang Lingchuan Guo Xiu Nie Jingshu Geng Jianhua Zhou Jianming Ying department of Pathology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking UnionMedical CollegeBeijingP.R.China department of Pathology the First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanP.R.China department of Pathology Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghaiP.R.China department of Pathology Cancer Hospital Affiliated to Shanxi Medical UniversityShanxi Province Cancer HospitalShanxi Hospital Affiliated to Cancer HospitalChinese Academy of Medical SciencesTaiyuanShanxiP.R.China department of Pathology Zhongshan HospitalFudan UniversityShanghaiP.R.China department of Pathology West China Hospital of Sichuan UniversityChengduSichuanP.R.China department of Pathology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingP.R.China department of Pathology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China department of Pathology Fujian Cancer HospitalFujian Medical University Cancer HospitalFuzhouFujianP.R.China department of Pathology Department of OncologyFudan University Cancer CenterShanghaiMedical College of Fudan UniversityShanghaiP.R.China department of Pathology The Fourth Hospital of Hebei Medical UniversityShijiazhuangHebeiP.R.China department of Pathology Shandong Cancer HospitalJinanShandongP.R.China department of Pathology Shanghai Chest HospitalShanghai Jiao Tong UniversityShanghaiP.R.China department of Pathology Tianjin Medical University Cancer Institute and HospitalTianjinP.R.China department of Pathology the Affiliated Cancer Hospital of Zhengzhou UniversityHenan Provincial Cancer HospitalZhengzhouHenanP.R.China department of Pathology the First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhouZhejiangP.R.China department of Pathology Bei

Background:Anaplastic lymphoma kinase(ALK)test in advanced non-small cell lung cancer(NSCLC)can help physicians provide target therapies for patients harboring ALK gene *** study aimed to investigate the real-world test patterns and positive rates of ALK gene rearrangements in advanced ***:In this real-world study(ChiCTR2000030266),patientswith advanced NSCLC who underwent an ALK rearrangement test in 30 medical centers in China between October 1,2018 and December 31,2019 were retrospectively *** training was conducted before the study was *** controls were performed at participating centers using immunohistochemistry(IHC)-*** positive ALK gene rearrangement rate and consistency rate were *** associated clinicopathological characteristics of ALK gene rearrangement were investigated as ***:The overall ALK gene rearrangement rate was 6.7%in 23,689 patients with advanced NSCLC and 8.2%in 17,436 patients with advanced lung *** quality control analysis of IHC-VENTANA-D5F3 revealed an intrahospital consistency rate of 98.2%(879/895)and an inter-hospital consistency rate of 99.2%(646/651).IHC-VENTANA-D5F3 was used in 53.6%,real-time polymerase chain reaction(RT-PCR)in 25.4%,next-generation sequencing(NGS)in 18.3%,and fluorescence in-situ hybridization(FISH)in 15.9%in the adenocarcinoma *** specimens tested with multiple methods,the consistency rates confirmed by IHC-VENTANA-D5F3 were 98.0%(822/839)for FISH,98.7%(1,222/1,238)forNGS,and 91.3%(146/160)for *** overall ALK gene rearrangement rateswere higher in females,patients of≤35 years old,never smokers,tumor cellularity of>50,and metastatic specimens used for testing in the total NSCLC population and adenocarcinoma subgroup(all Ptest in advanced NSCLC,demonstrating a predominant use of IHCVENTANA-D5F3 with high co

关键词： anaplastic lymphoma kinase diagnosis gene fusion non-small cell lung cancer

Research on monopulse forward-looking high-resolution imaging algorithm based on adaptive iteration

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Defence technology（防务技术） 2020年第1期16卷 158-171页

作者： Cheng Cheng Xiao-dong Zhou Min Gao Zhu-lin Zong Yong-xiang Ji Bo Yu department of Missile Engineering Army Engineering UniversityNo.97 Westroad HepingShijiazhuangChina department of Ammunition Engineering Army Engineering UniversityNo.97 Westroad HepingShijiazhuangChina Research institute of Electronic Science and technology University of Electronic Science and TechnologyNo.4Section 2Jianbei RoadChengduChina China Huayin Weapon test Center No.450 Yuemiao StreetHuayinShaanxiChina North automatic control technology institute No.351 Tiyu RoadTaiyuanChina

In this paper,we proposed a monopulse forward-looking high-resolution imaging algorithm based on adaptive iteration for missile-borne *** iteration,the proposed algorithm automatically selects the echo signal of isolated strong-scattering points from the receiving echo signal data to accurately estimate the actual optimal monopulse response curve(MRC) of the same distance range,and we applied optimal MRC to realize the azimuth self-focusing in the process of *** use real-time echo data to perform error correction for obtaining the optimal MRC,and the azimuth angulation accuracy may reach the optimum at a certain distance *** experimentally demonstrate the validity,reliability and high performance of the proposed *** azimuth angulation accuracy may reach up to ten times of the detection *** simulation experiments have verified the feasibility of this strategy,with the average height measurement error being 7.8%.In the out-field unmanned aerial vehicle(UAV) tests,the height measurement error is less than 25 m,and the whole response time can satisfy the requirements of a missile-borne detector.

关键词： Monopulse imaging High-resolution Adaptive iteration Missile-borne detector

Guest Editorial for Special Issue on Extensions of Reinforcement Learning and Adaptive control

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IEEE/CAA Journal of automatica Sinica 2014年第3期1卷 225-226页

作者： Frank L.Lewis Warren Dixon Zhongsheng Hou Tansel Yucelen institute of Measurement&control PE TexasU.K IEEE control Systems Society(CSS) Operations for the Executive Committee of the IEEE CSS Board of Governors the harbin institute of technology the Advanced control Systems Lab Beijing Jiaotong University the department of automatic control in School of Electronic and Information Engineering Beijing Jiaotong University Mechanical and Aerospace Engineering department at the Missouri University of Science and technology Advanced Systems Research Laboratory at the Missouri University of Science and technology

ADAPTIVE control is a proven method for learning feedback controllers for systems with unknown dynamic models,exogenous disturbances,nonzero setpoints,and unmodeled *** control has been applied for years in process co... 详细信息

关键词： Special issues and sections Learning (artificial intelligence) Adaptive control Feedback

General Design and Thermodynamic Analysis of a Supercritical Carbon Dioxide Cannon

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Journal of Thermal Science 2021年第1期30卷 123-132页

作者： ZHANG Fan LIU Hongrui WU You LI Jiaqi YU Huazhang WANG Xiaoliang GUO Baoting YUAN Yixiang Key Laboratory of Light Duty Gas Turbine Institute of Engineering ThermophysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China department of Fluid control and Automation Harbin Institute of TechnologyHarbin 150001China Force Academy of People’s Armed Police Beijing 100012China

This paper presents a new supercritical carbon dioxide(SCO_(2))cannon based on the carbon dioxide(CO_(2))’s thermodynamic cycle under constant ***,Virial equation and NIST database are applied to formulate SCO_(2)’s property and analyze the thermodynamic cycle,which is aimed to get the optimization equation using the cannon’s exit velocity as objective *** the cannon’s structural parameters,such as diaphragm thickness and barrel length,and CO_(2)’s filling mass,are ***,the flow field and velocity’s change during the launch process is performed with *** field test,the ultra-high pressure sensor and ultra-high speed camera are used to measure the pressure distribution along the barrel’s axial direction and the projectile’s exit velocity under different *** results show that all the performance indexes meet the design *** innovative SCO_(2)cannon in this paper has obvious advantages such as high safety,low cost and fast loading,which can be applied in many situations such as disaster relief,peacekeeping and ***,the unique energy storage method and thermodynamic design ensure its subsequent development.

关键词： supercritical carbon dioxide(SCO_(2))cannon state equation thermodynamic analysis field test

automatic calibration method of voxel size for cone-beam 3D-CT scanning system

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Chinese Physics C 2014年第4期38卷 69-74页

作者：杨民王晓龙刘义鹏孟凡勇李兴东刘文丽魏东波 School of Mechanical Engineering and Automation Beijing Univ.of Aeronautics and Astronautics department of control Science and Engineering Harbin Institute of Technology State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences National institute of Metrology

For a cone-beam three-dimensional computed tomography （3D-CT） scanning system, voxel size is an important indicator to guarantee the accuracy of data analysis and feature measurement based on 3D-CT images. Meanwhile, the voxel size changes with the movement of the rotary stage along X-ray direction. In order to realize the automatic calibration of the voxel size, a new and easily-implemented method is proposed. According to this method, several projections of a spherical phantom are captured at different imaging positions and the corresponding voxel size values are calculated by non-linear least-square fitting. Through these interpolation values, a linear equation is obtained that reflects the relationship between the voxel size and the rotary stage translation distance from its nominal zero position. Finally, the linear equation is imported into the calibration module of the 3D-CT scanning system. When the rotary stage is moving along X-ray direction, the accurate value of the voxel size is dynamically exported. The experimental results prove that this method meets the requirements of the actual CT scanning system, and has virtues of easy implementation and high accuracy.

关键词： cone-beam CT voxel size least square fitting automatic calibration