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Beyond Performance of Learning Control Subject to Uncertainties and Noise: A Frequency-Domain Approach Applied to Wafer Stages

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 198-214页

作者： Fazhi Song Ning Cui Shuaiqi chen kai Zhang Yang Liu Xinkai chen Jiubin Tan IEEE the Center of Ultra-precision Optoelectronic Instrument Engineering Harbin Institute of Technology the Key Laboratory of Ultra-Precision Intelligent Instrumentation Ministry of Industry and Information Technology the State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of Technology the Center of Ultraprecision Optoelectronic Instrument Engineering Harbin Institute of Technology the Key Laboratory of UltraPrecision Intelligent Instrumentation Ministry of Industry and Information Technology the Department of Electronic and Information Systems Shibaura Institute of Technology

The increasingly stringent performance requirement in integrated circuit manufacturing, characterized by smaller feature sizes and higher productivity, necessitates the wafer stage executing a extreme motion with the accuracy in terms of nanometers. This demanding requirement witnesses a widespread application of iterative learning control(ILC), given the repetitive nature of wafer scanning. ILC enables substantial performance improvement by using past measurement data in combination with the system model knowledge. However, challenges arise in cases where the data is contaminated by the stochastic noise, or when the system model exhibits significant uncertainties, constraining the achievable performance. In response to this issue, an extended state observer(ESO) based adaptive ILC approach is proposed in the frequency *** being model-based, it utilizes only a rough system model and then compensates for the resulting model uncertainties using an ESO, thereby achieving high robustness against uncertainties with minimal modeling effort. Additionally, an adaptive learning law is developed to mitigate the limited performance in the presence of stochastic noise, yielding high convergence accuracy yet without compromising convergence speed. Simulation and experimental comparisons with existing model-based and data-driven inversion-based ILC validate the effectiveness as well as the superiority of the proposed method.

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High accuracy in automatic detection of atrial fibrillation for Holter monitoring

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第9期13卷 751-756页

作者： kai JIANG Chao HUANG Shu-ming YE Hang chen Key Laboratory of Biomedical Engineering of Education Ministry Zhejiang UniversityHangzhou 310058China

Atrial fibrillation(AF) has been considered as a growing epidemiological problem in the world,with a substantial impact on morbidity and *** electrocardiography(e.g.,Holter) monitoring is commonly used for AF diagnosis and therapy and the automated detection of AF is of great significance due to the vast amount of information *** study presents a combined method to achieve high accuracy in AF ***,we detected the suspected transitions between AF and sinus rhythm using the delta RR interval distribution difference curve,which were then classified by a combination analysis of P wave and RR *** MIT-BIH AF database was used for algorithm validation and a high sensitivity and a high specificity(98.2% and 97.5%,respectively) were ***,we developed a dataset of 24-h paroxysmal AF Holter recordings(n=45) to evaluate the performance in clinical practice,which yielded satisfactory accuracy(sensitivity=96.3%,specificity=96.8%).

关键词： Atrial fibrillation Delta RR interval distribution difference curve Holter monitoring

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Activation and afterheat analysis for CH HCSB TBM

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核聚变与等离子体物理 2006年第3期26卷 176-180页

作者： chen Zhi FENG kai-ming ZHANG Guo-shu YUAN Tao Southwestern Institute of Physics Chengdu 610041

With an activation calculation code FDKR and decay chain data library AF-DCDLIB, the radioactivity, afterheat decay and Biological Hazard Potential (BHP) from activation products have been analyzed in the CH HCSB TBM. The calculation results show that the total radioactivity inventory, heat decay and BHP are 2.10×1016Bq、5.06×10?3 MW、68.6 km3·(kW)?1, respectively, at shutdown after a continuous irradiation over 0.53 years with 500 MW fusion power. It shows that there isn’t seriously environmental safety issue in the TBM.

关键词： TBM 激化残热 BHP 热核反应

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快速模拟退火算法用于噪声图像配准

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上海大学学报（自然科学版） 2003年第5期9卷 389-392,397页

作者：肖开明陈欣卓郭光亚上海大学机电工程与自动化学院上海200072

提出一种基于快速模拟退火的噪声图像配准算法.将模拟退火算法纳入鲍威尔(Powell)直接搜索法可以使优化解不陷入局部极值解而获得全局优化解,而且可大大地提高运算效率.实验表明,该算法能对平移、旋转后的噪声图像进行有效地配准.

关键词：鲍威尔(Powell)法模拟退火算法布伦特(Brent)法全局优化图像配准噪声图像

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不同用量的氮磷化肥对棉田土壤微生物区系及活性的影响

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土壤通报 2000年第2期31卷 66-69页

作者：罗明文启凯陈全家盛建东王新燕徐余虹张国建陈奇新疆农业大学农学分院新疆乌鲁木齐830052 新疆农七师124团

1996、1 997年连续对灌耕灰漠土棉花试验地土壤进行观测 .结果表明 ,适宜的氮磷化肥用量 ,可促进土壤氨化细菌、硝化细菌、纤维分解菌、固氮菌等氮素生理群微生物数量显著增加 .土壤呼吸强度、纤维分解强度等活性指标均有所增大 ,从而... 详细信息

1996、1 997年连续对灌耕灰漠土棉花试验地土壤进行观测 .结果表明 ,适宜的氮磷化肥用量 ,可促进土壤氨化细菌、硝化细菌、纤维分解菌、固氮菌等氮素生理群微生物数量显著增加 .土壤呼吸强度、纤维分解强度等活性指标均有所增大 ,从而有利于作物生长 ,提高产量 .

关键词：微生物区系棉花土壤微生物氮肥磷肥

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Surface micro-arrays enhancing electromagnetic interference shielding of polydimethylsiloxane/multiwalled carbon nanotubes nanocomposites

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Nano Research 2025年第1期18卷 508-519页

作者： Ke Jiang Zhi chen Ji Yu chen Zheng Shan Huang ming Wang Chongqing Key Laboratory of Soft-Matter Material Manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China School of Mechanics Civil Engineering and ArchitecturesNorthwestern Polytechnical UniversityXi’an 710072China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Herein,the electromagnetic shielding performance of surface concave-convex(SC)and zig-zag micro-arrays was studied by using a simulation prediction and a three-dimensional(3D)printing custom ***,surface stripe concaveconvex(SSC)and surface cylindrical concave-convex(SCC)micro-arrays with or without zig-zag micro-arrays are designed,and their shielding performance is simulated in multi-bands(C-,X-band).The multiwalled carbon nanotubes/polydimethylsiloxane composites(MWCNT/PDMS)with different SC structures and different electrical conductivity are molded in acrylonitrile-butadiene-styrene copolymer(ABS)molds which are printed by a 3D *** results show that the electromagnetic interference shielding effectiveness(EMI SE)of the samples can be enhanced by constructing the SC micro-arrays with zig-zag micro-arrays,and improving with the increase of conductivity and *** addition,the shielding mechanism of the SC-MWCNT/PDMS composites is investigated and discussed by an electromagnetic simulation.

关键词： surface micro-arrays electrical properties electromagnetic interference(EMI)shielding three-dimensional(3D)printing

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Porous epoxy thermosets obtained by a reaction-induced process and their characterizations

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Chinese Chemical Letters 2008年第11期19卷 1312-1314页

作者： Hao Ai kai Xu Huan Liu ming Cai chen Key Laboratory of Palymer Materials for Electronics Guangzhou Institute of Chemistry Chinese Academy of Sciences P.O. Box 1122 Guangzhou 510650 China

A novel reaction-induced method with the aid of solvent for porous thermosetting epoxy was first carried out. Investigations of pore structure using scanning electron microscope （SEM） showed that porous epoxy networks with average pore size ranging from 3 to 20 μm were obtained. The pore structure generated by this method can be tailored by changing the solvent content.

关键词： Porous Rcaction-induced Epoxy Polymerization

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Adaptive power loading with BER-constraint for OFDM systems

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The Journal of China Universities of Posts and Telecommunications 2009年第4期16卷 91-97页

作者： LIU kai-ming ZHAO Jing chen Chang-xiang LIU Yuan-an School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing 100876 China International school Beijing University of Posts and Telecommunications Beijing 102209 China The No.30 Institute of China Electronic Technology Corporation Chengdu 610041 China

A novel adaptive power loading algorithm with the constraint of target overall bit error rate （BER） for orthogonal frequency division multiplexing （OFDM） systems is proposed in this article. The proposed algorithm aims to minimize the required transmit power with fixed data rate and uniform （nonadaptive） bit allocation, while guaranteeing the target overall BER. The power loading is based on the unequal-BER （UBER） strategy that allows unequal mean BERs on different subcarriers. The closed-form expressions for optimal BER and power distributions are derived in this article. Simulation results indicate the superiority of the proposed algorithm in terms of BER performance and algorithmic complexity.

关键词： OFDM adaptive modulation power loading unequal-BER uniform bit allocation

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Molecular mechanism and research progress of traditional Chinese medicine in the treatment of prostate cancer

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Traditional Medicine Research 2025年第1期10卷 62-72页

作者： Hai-Luo Wang Ruo-Ran Zhang Hao Wang Peng Xu Jing-kai Wang Bo chen Hao Xu Deng Pan Yu-Yang Ma Kun Pang Department of Urology Xuzhou Central HospitalXuzhou Clinical School of Xuzhou Medical CollegeXuzhou 221009China Graduate School Jiangsu UniversityZhenjiang 212013China Graduate School Bengbu Medical UniversityBengbu 233040China Department of Urology The Peixian People’s HospitalXuzhou 221699China.

Prostate cancer(PCa)is one of the most common malignant tumors in the male genitourinary system,ranking second in incidence *** Chinese medicine(TCM),as an important component of complementary and alternative medicine,shows unique advantages in cancer *** herbal medicine is usually composed of multiple ingredients and involves multiple signaling pathways,which showed function of inducing apoptosis of cancer cells,arresting the cell cycle,inhibiting invasion and metastasis,reducing drug resistance,and regulating immune *** therapy is also an important treatment of ***,Physical therapy such as acupuncture or Tai Chi and Qigong are gaining increased recognition in the management of PCa,particularly in addressing issues like urinary incontinence and bone metastasis-related *** article reviews the TCM treatment and therapy of PCa,in order to provide new research avenues and treatment options for the treatment of PCa with TCM and improve the quality of life of patients.

关键词： traditional Chinese medicine prostate cancer Chinese herbal medicine physical therapy

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肝硬化并食管胃静脉曲张二级预防胃镜复查必要性及依从性的临床研究

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中国内镜杂志 2020年第7期26卷 13-19页

作者：佘倩陈明锴肖勇张琎刘小娇邬海燕武汉大学人民医院消化内科湖北武汉430060

目的了解肝硬化并食管胃静脉曲张(EGV)二级预防胃镜复查的必要性及依从性。方法选取2017年1月-2019年6月于该院首诊并内镜证实为食管胃静脉曲张破裂出血(EGVB)的患者77例为观察组,肝硬化并EGV序贯治疗的患者69例为对照组,比较两组术前... 详细信息

目的了解肝硬化并食管胃静脉曲张(EGV)二级预防胃镜复查的必要性及依从性。方法选取2017年1月-2019年6月于该院首诊并内镜证实为食管胃静脉曲张破裂出血(EGVB)的患者77例为观察组,肝硬化并EGV序贯治疗的患者69例为对照组,比较两组术前血液生化检查指标、是否入住重症监护室、是否输血、内镜治疗情况、术后5 d(再)出血率、在院死亡率、住院天数、住院期间并发症/合并症,了解二级预防胃镜复查及序贯治疗的必要性,并分析胃镜复查依从性的影响因素。结果观察组白细胞计数(WBC)、中性粒细胞计数百分比(Neu)、总胆红素(TBil)、血尿素氮(UREA)、凝血酶原时间(PT)、国际标准化比值(INR)、Child-Pugh分级(B级+C级)比例、终末期肝病模型(MELD)评分明显高于对照组(P<0.05),血红蛋白(Hb)、血细胞比容(HCT)、白蛋白(ALB)、纤维蛋白原(FIB)明显低于对照组(P<0.05)。观察组入住重症监护室需求、输血需求、急诊内镜下治疗需求、术后住院天数、总住院天数、在院期间并发症/合并症发生率明显多于对照组(P<0.05)。对照组随访期间胃镜复查依从性明显高于观察组(P<0.05)。有EGV序贯治疗史随访期间胃镜复查依从性更高(P<0.05),年龄、性别、肝硬化病因、住址、医保类型和既往EGVB次数不影响胃镜复查依从性。结论相较EGVB,EGV序贯治疗肝脏储备功能恶化不明显、并发症/合并症发生率更低、住院时间更短、花费更低,能减轻医疗负担。胃镜复查可指导内镜下序贯治疗,然而EGVB患者二级预防胃镜复查依从性并不高。加强患者宣教、提高随访期间胃镜复查必要性认识及胃镜复查依从性是临床医生工作的重点。

关键词：肝硬化静脉曲张破裂出血二级预防胃镜检查必要性依从性

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