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Three Solutions of p-Laplacian Equations Via a Critical Point Theorem of Ricceri

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Acta Mathematicae Applicatae Sinica 2014年第1期30卷 171-178页

作者： chun-yan xuE He-yu xu School of Science Beijing Information Science and Technology University School of Mathematics Beijing Institute of Technology

In this paper,we consider the following quasilinear diferential equation（p（u′））′＋λf（t,u）=0subject to one of the two boundary conditions：u（0）=u′（1）=0,u′（0）=u（1）=*** transforming them into a problem of symmetrical solutions,the existence of three solutions of the problem is obtained by using a recent critical point theorem of *** example is given to demonstrate our main result.

关键词： boundary value problem critical point theorem three solutions symmetrical solution

Block dual Toeplitz Operators on the Orthogonal Complements of Fock Spaces

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Acta Mathematica Sinica,English Series 2024年第8期40卷 1967-1988页

作者： Jian Xiang DONG chun xu xu yu Feng LU School of Mathematical Sciences Dalian University of TechnologyDalian 116024P.R.China School of Mathematics and Information Science Guangzhou UniversityGuangzhou 510006P.R.China

In this paper,we characterize the boundedness and compactness of the block dual Toeplitz operators acting on the orthogonal complement of the Fock spaces,and the compactness of the finite sum of two dual Toeplitz oper... 详细信息

关键词： Block dual Toeplitz operators boundedness compactness Fock space (semi)-commutator

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

Permutation orbifolds of vertex operator superalgebras and associative algebras

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Science China Mathematics 2025年第1期 19-38页

作者： Chongying Dong Feng xu Nina yu Department of Mathematics University of California at Santa Cruz Department of Mathematics Huzhou University Department of Mathematics University of California at Riverside School of Mathematical Sciences Xiamen University

Let V be a vertex operator superalgebra and g =（1 2 ···k） be a k-cycle which is viewed as an automorphism of the tensor product vertex operator superalgebra V■*** this paper,we construct an explicit isomorphism from Ag(V■k) to A（V） if k is odd and to Aσ（V） if k is even where σ is the canonical automorphism of V of order 2 determined by the superspace structure of *** recover previous results by Barron（2016）and Barron and Vander Werf（2014） that there is a one-to-one correspondence between irreducible g-twisted V■k-modules and irreducible V-modules（*** σ-twisted V-modules） when k is odd（***）.This explicit isomorphism is expected to be useful in our further study on the Zhu algebra of the fixed point subalgebra.

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Context Processing in Contextual and Cued Fear Extinction

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Neuroscience Bulletin 2024年第6期40卷 835-839页

作者： Yimu Zhang chun xu yu Gu State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science Institutes of Brain ScienceFudan UniversityShanghai200032China Institute of Neuroscience State Key Laboratory of NeuroscienceCenter for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghai200031China

Anxiety disorders such as post-traumatic stress disorder(PTSD)are prevalent mental disorders that disturb millions *** disorders often manifest as excessive fear,anxiety,and distress,significantly impacting daily *** fear extinction paradigms in animals were established decades ago and have been widely used in research,providing a scientific basis for exposure therapies for anxiety disorders in humans.

关键词： distress disorders traumatic

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马克思克鲁维酵母DNA提取方法的比较

食品科技 2009年第4期34卷 31-33,37页

作者：卢鑫张会彦亢春雨苏旭东王雪静王羽张伟河北农业大学食品科技学院保定071001

比较了耐热酵母菌马克思克鲁维酵母DNA的5种提取方法的效果,确定了一种可有效提取酵母菌DNA的方法。所提取出的DNA可作为模板直接用于PCR扩增,获得26SrDNAD1/D2区域序列片段,成功测序并证明其为马克思克鲁维酵母。

关键词：食品酵母菌耐热 DNA提取 PCR

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霍耳效应实验中的对称性破缺研究

大学物理 2020年第6期39卷 39-43页

作者：高茜朱亚敏喻纯旭朱江东北大学理学院辽宁沈阳110819 天津天狮学院数理教学部天津301700 南开大学物理科学学院天津300071

迄今为止,半导体材料的导电类型及很多参数的获得,仍需利用霍尔效应实验.然而,在霍尔效应发生的同时,有很多副效应发生,这使得霍尔效应电压的测量值总与其真实值偏离,导致所测量的各种参数也存在一定的偏差.为了消除副效应的影响,常常... 详细信息

迄今为止,半导体材料的导电类型及很多参数的获得,仍需利用霍尔效应实验.然而,在霍尔效应发生的同时,有很多副效应发生,这使得霍尔效应电压的测量值总与其真实值偏离,导致所测量的各种参数也存在一定的偏差.为了消除副效应的影响,常常采用对称测量法,但对称测量法所测量的数据列仍然存在着对称性破缺.该文从载流子运动状态入手,逐步深入分析得出,对称性破缺产生的根源是电场和磁场的共同作用,并发现磁场对于材料对称性的破坏作用大于电场.该文对于半导体材料性能的深入研究,以及其各种功能的开发利用,具有一定的启发作用.

关键词：霍尔效应对称测量法对称性破缺

Ductility Anisotropy Induced by Ferrite in Direct Laser Deposited 17-4 PH Steel: Combined Microstructure and Dislocation Density Simulation

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Acta Metallurgica Sinica(English Letters) 2021年第6期34卷 765-776页

作者： Chuanfeng Wu Junmei Chen Zhiyuan yu Hao Lu chun yu Jijin xu Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

The anisotropic ductility of a direct laser deposited 17-4 PH cubic part was *** elongations in the specimens from varied surfaces of the part were obtained:~6.2%,~1.5%,and~4.5%in XY,YZ,and XZ samples,***,various orientations of ferrite were found in different specimens,taking the loading direction as reference.A finite element analysis depending on actual microstructures and dislocation density revealed that the orientation of ferrite caused the ductility *** orientation of ferrite affected its plastic deformability and the deformation compatibility between phases during the uniaxial *** ferrite parallel to the tensile direction in the YZ sample had the worst deformability and induced severe strain localization and stress triaxiality,which resulted in inferior *** ferrite perpendicular to the tensile direction showed the best deformability,whereas strain localization remained intense in the XZ sample owing to the unmatched deformability of *** inclined ferrite in the XY sample exhibited moderate deformability and was found to enhance the plastic flow of martensite,leading to the best deformation compatibility and ductility.

关键词： Direct laser deposition Stainless steel Ductility Anisotropy Microstructure Finite element analysis

Efficient production optimization for naturally fractured reservoir using EDFM

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Petroleum Science 2023年第4期20卷 2268-2281页

作者： Jian-chun xu Wen-Xin Zhou Hang-yu Li Key Laboratory of Unconventional Oil&Gas Development China University of Petroleum(East China)Ministry of EducationQingdao266580ShandongPR China School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongPR China

Naturally fractured reservoirs make important contributions to global oil and gas reserves and *** modeling and simulation of naturally fractured reservoirs are different from conventional reservoirs as the existence of natural *** address the development optimization problem of naturally fractured reservoirs,we propose an optimization workflow by coupling the optimization methods with the embedded discrete fracture model(EDFM).Firstly,the effective and superior performance of the workflow is verified based on the conceptual *** stochastic simplex approximate gradient(StoSAG)algorithm,the ensemble optimization(EnOpt)algorithm,and the particle swarm optimization(PSO)algorithm are implemented for the production optimization of naturally fractured reservoirs based on the improved versions of the Egg model and the PUNQ-S3 *** results of the two cases demonstrate the effectiveness of this optimization workflow by finding the optimal well controls which yield the maximum net present value(NPV).Compared to the initial well control guess,the final NPV obtained from the production optimization of fractured reservoirs based on all three optimization algorithms is significantly *** with the optimization results of the PSO algorithm,StoSAG and EnOpt have significant advantages in terms of final NPV and computational *** results also show that fractures have a significant impact on reservoir *** economic efficiency of fractured reservoir development can be significantly improved by the optimization workflow.

关键词： Production optimization Naturally fractured reservoir Embedded discrete fracture method StoSAG algorithm PSO algorithm