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二阶饱和线性系统的线性最优容错吸引域

控制与决策 2011年第1期26卷 123-128页

作者：范金华郑志强吕鸣国防科技大学机电工程与自动化学院长沙410073

考虑执行器故障影响,研究了二阶饱和线性系统的吸引域估计问题.通过适当定义容错吸引域,并采用椭圆逼近,使得系统的吸引域具有容错能力.为了保证容错吸引域的收敛性能,通过状态反馈将闭环系统极点配置在圆形极点区域内.基于参数空间,给... 详细信息

考虑执行器故障影响,研究了二阶饱和线性系统的吸引域估计问题.通过适当定义容错吸引域,并采用椭圆逼近,使得系统的吸引域具有容错能力.为了保证容错吸引域的收敛性能,通过状态反馈将闭环系统极点配置在圆形极点区域内.基于参数空间,给出了圆形极点区域对应的反馈增益向量空间的不等式表示.在反馈增益向量空间和执行器幅值的约束下,基于参考集的缩放构造了一个容错吸引域的优化问题,并提出了一种求解方法.最后给出一个实例进行验证.

关键词：饱和线性系统容错吸引域参数空间极点配置反馈增益向量空间

Imaging a force field via an optically levitated nanoparticle array

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Chinese Physics B 2024年第9期33卷 179-184页

作者： Bihu lv Jiandong Zhang Chuang Li Research Center for Novel Computing Sensing and Intelligent Processing Zhejiang LaboratoryHangzhou 311121China School of Mathematics and Physics Jiangsu University of TechnologyChangzhou 213001China

Levitated optomechanical systems represent an excellent candidate platform for force and acceleration *** propose a force-sensing protocol utilizing an optically levitated nanoparticle *** our scheme,N nanoparticles are trapped in an optical cavity using holographic optical *** external laser drives the cavity,exciting N cavity modes interacting simultaneously with the N *** optomechanical interaction encodes the information of the force acting on each nanoparticle onto the intracavity photons,which can be detected directly at the output ports of the ***,our protocol enables real-time imaging of a force field.

关键词： optomechanics levitated nanoparticles force field detection

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基于智能因素的比特串生态演化模型

辽宁工程技术大学学报（自然科学版） 2006年第2期25卷 315-317页

作者：吕明海贺丽萍辽宁工程技术大学基础科学部辽宁阜新123000 沈阳理工大学装备工程学院辽宁沈阳110168

用两个并行的基因串可以描述个体的健康状况和智能水平,基因串的表示形式类似于Penna模型中的Bit-String,对Verhulst因子(通常用来控制由于疾病、达到最大年龄或由于环境压力导致的死亡率)进行了修正,考虑了智能水平对其适应环境能力的... 详细信息

用两个并行的基因串可以描述个体的健康状况和智能水平,基因串的表示形式类似于Penna模型中的Bit-String,对Verhulst因子(通常用来控制由于疾病、达到最大年龄或由于环境压力导致的死亡率)进行了修正,考虑了智能水平对其适应环境能力的影响,利用一个参数S来表示其影响程度。因参数S可能会受外界环境影响而发生变化,所以模拟S变化对种群规模、种群平均年龄以及种群平均智力水平等的影响。得到的结果显示出种群规模与S的关系是Power law,而种群平均年龄以及种群平均智力水平与S的关系是线性的。

关键词： Penna模型智能均衡

The heterogeneity of tumor-associated macrophages and strategies to target it

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BIOCELL 2024年第3期48卷 363-378页

作者： HAO lv BO ZHU DEGAO CHEN Institute of Cancer Xinqiao HospitalThird Military Medical UniversityChongqing400037China Chongqing Key Laboratory of Immunotherapy Xinqiao HospitalThird Military Medical UniversityChongqing400037China

Tumor-associated macrophages(TAMs)are emerging as targets for tumor therapy because of their primary role in promoting tumor *** studies have been conducted to target TAMs by reducing their infiltration,depleting their numbers,and reversing their phenotypes to suppress tumor progression,leading to the development of drugs in preclinical and clinical ***,the heterogeneous characteristics of TAMs,including their ontogenetic and functional heterogeneity,limit their ***,in-depth exploration of the heterogeneity of TAMs,combined with immune checkpoint therapy or other therapeutic modalities could improve the efficiency of tumor *** review focuses on the heterogeneous ontogeny and function of TAMs,as well as the current development of tumor therapies targeting TAMs and combination strategies.

关键词： Tumor-associated macrophages Tissue-resident macrophages Heterogeneity Immune checkpoint therapy

Enhancing AI System Privacy:An Automatic Tool for Achieving GDPR Compliance in NoSQL Databases

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Computers, Materials & Continua 2024年第7期80卷 217-234页

作者： Yifei Zhao Zhaohui Li Siyi lv College of Cyber Science Nankai UniversityTianjin300350China

The EU’s Artificial Intelligence Act(AI Act)imposes requirements for the privacy compliance of AI *** systems must comply with privacy laws such as the GDPR when providing *** laws provide users with the right to issue a Data Subject Access Request(DSAR).Responding to such requests requires database administrators to identify information related to an individual ***,manual compliance poses significant challenges and is *** administrators need to write queries through time-consuming *** demand for large amounts of data by AI systems has driven the development of NoSQL *** to the flexible schema of NoSQL databases,identifying personal information becomes even more *** paper develops an automated tool to identify personal information that can help organizations respond to *** tool employs a combination of various technologies,including schema extraction of NoSQL databases and relationship identification from query *** describe the algorithm used by our tool,detailing how it discovers and extracts implicit relationships from NoSQL databases and generates relationship graphs to help developers accurately identify personal *** evaluate our tool on three datasets,covering different database designs,achieving an F1 score of 0.77 to *** results demonstrate that our tool successfully identifies information relevant to the data *** tool reduces manual effort and simplifies GDPR compliance,showing practical application value in enhancing the privacy performance of NOSQL databases and AI systems.

关键词： GDPR compliance NoSQL databases AI system privacy

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新型齿轮超声加工纵向振动系统的设计

工程设计学报 2015年第4期22卷 381-386页

作者：梁欣吕明王时英太原理工大学机械工程学院山西太原030024

在传统的齿轮纵向振动系统中,齿轮与变幅杆耦合处振幅较小,导致齿轮端面输出振幅偏小,满足不了齿轮超声加工的要求.基于非谐振设计理论和全谐设计理论,设计了一种新型齿轮纵向振动系统,该振动系统由齿轮与圆柱杆耦合振动单元、换能器、... 详细信息

在传统的齿轮纵向振动系统中,齿轮与变幅杆耦合处振幅较小,导致齿轮端面输出振幅偏小,满足不了齿轮超声加工的要求.基于非谐振设计理论和全谐设计理论,设计了一种新型齿轮纵向振动系统,该振动系统由齿轮与圆柱杆耦合振动单元、换能器、半波长圆锥形变幅杆组成,齿轮与变幅杆耦合处振幅较大,增大了齿轮端面的输出振幅.圆锥变幅杆形状参数固定时,齿轮分度圆直径和圆柱杆直径对齿轮端面的输出振幅没有影响,减小圆锥变幅杆小端直径可以增大齿轮端面的输出振幅.通过有限元分析和谐振特性实验验证这种新设计方法的可行性.研究结果为齿轮振动系统提供了一种新的设计方法,对齿轮超声加工工艺的工程应用具有重要意义.

关键词：纵向振动系统非谐振设计全谐设计谐振特性

Recent progress of in-situ characterization of LiNi_(1−x−y)Co_(x)Mn_(y)O_(2) cathodes for lithium metal batteries: A mini review

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Nano Research 2024年第3期17卷 1384-1401页

作者： Huanzhu lv Xiaoqi Zhu Jun Mei Yuanhua Xia Bin Wang Institute of Fundamental and Frontier Science University of Electronic Science and Technology of ChinaChengdu 611731China Chengdu Development Center of Science and Technology China Academy of Engineering PhysicsChengdu 610200China Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics(CAEP)Mianyang 621999China

In the context of the gradual popularity of electric vehicles(EVs),the development of lithium battery systems with high energy density and power density is regarded as the foremost way to improve the range of ***_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)cathodes have been the focus of researchers due to their high energy density,excellent power performance,and low-temperature ***,the elaboration of the decay mechanism of NCM cathode based on lithium metal batteries(LMBs)is still being restricted to the primary *** the past decades,the development and application of advanced in-situ characterization tools have facilitated researchers'understanding of the internal operation mechanism of batteries during charging and *** this minireview,the latest progress of in-situ observation of the NCM cathode by X-ray diffraction(XRD),fourier transform infrared(FT-IR)spectroscopy,Raman spectroscopy,atomic force microscopy(AFM),transmission electron microscope(TEM),optical microscope,and other characterization tools is *** mechanisms of structural degradation,cathode-electrolyte interfaces(CEIs)composition,and dynamic changes of NCM,electrolyte breakdown,and gas production are ***,based on the existing research progress,the opportunities and challenges for future in-situ characterization technology in the study of the mechanism of LMBs are discussed in ***,the purpose of this minireview is to summarize recent work that focuses on the outstanding application of in-situ characterization techniques in the mechanistic study of LMBs,and pointing the way to the future development of high energy density and power density LMBs systems.

关键词： lithium metal batteries(LMBs) In-situ characterization LiNi_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)

Random change point model with an application to the China Household Finance Survey

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Science China Mathematics 2024年第10期67卷 2373-2386页

作者： Meng Li Lingxi Gao Guangming lv Xingwei Tong School of Statistics Beijing Normal UniversityBeijing 100875China

We consider a linear model with a change point according to the unknown random threshold of a covariate. We give the expectation-maximization(EM) estimations of the regression and change point parameters. The existence of the random change point is detected by the supremum(SUP) test of score statistics. Theoretically, we establish the convergence and asymptotic distribution of the estimation and show that the EM estimates converge in distribution to a normal distribution. In addition, the numerical performance of the proposed approach is demonstrated through simulation studies. Finally, applying our methodology to household financial decisions, we see that the average debt tolerance of Chinese households is estimated to be 1.1364 times the sum of total household income and financial assets. The effect of assets and income on consumption shows a rapid decline if the household exceeds the average debt tolerance.

关键词： random change point EM algorithm SUP test debt nancial vulnerability

Therapeutic potential of targeting protein tyrosine phosphatases in liver diseases

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Acta Pharmaceutica Sinica B 2024年第8期14卷 3295-3311页

作者： Ao Wang Yi Zhang Xinting lv Guang Liang Department of Pharmacy and Institute of Inflammation Zhejiang Provincial Affiliated People’s HospitalHangzhou Medical CollegeHangzhou 310014China Key Laboratory of Natural Medicines of the Changbai Mountain Ministry of EducationYanbian UniversityYanji 133002China Chemical Biology Research Center School of Pharmaceutical SciencesWenzhou Medical UniversityWenzhou 325035China

Protein tyrosine phosphorylation is a post-translational modification that regulates protein structure to modulate demic organisms’homeostasis and *** physiological process is regulated by two enzyme families,protein tyrosine kinases(PTKs)and protein tyrosine phosphatases(PTPs).As an important regulator of protein function,PTPs are indispensable for maintaining cell intrinsic physiology in different systems,as well as liver physiological and pathological *** of PTPs has been implicated in multiple liver-related diseases,including chronic liver diseases(CLDs),hepatocellular carcinoma(HCC),and liver injury,and several PTPs are being studied as drug therapeutic ***,given the regulatory role of PTPs in diverse liver diseases,a collated review of their function and mechanism is ***,based on the current research status of targeted therapy,we emphasize the inclusion of several PTP members that are clinically significant in the development and progression of liver *** an emerging breakthrough direction in the treatment of liver diseases,this review summarizes the research status of PTP-targeting compounds in liver diseases to illustrate their potential in clinical ***,this review aims to support the development of novel PTP-based treatment pathways for liver diseases.

关键词： Tyrosine phosphorylation PTPs Signal transduction CLDs HCC Allosteric inhibitor PROTACs Drug development