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Magnetoelectric cylindrical layered composite structure with multi-resonance frequencies

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Science China(Technological Sciences) 2013年第10期56卷 2572-2575页

作者： BI ke DONG GuoYan pan DeAn ZHOU Ji State key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology Beijing

A combined ME composite structure is made of several cylindrical layered composites in series or parallel *** to the cylindrical structure,the combined structure does not need more *** characteristics of multi-resonance frequencies have been *** resonance frequency of the structure can be adjusted by changing the cylinder diameter of the corresponding cylindrical layered *** number of resonance frequencies increases as the number of cylindrical layered composites *** multi-resonance frequencies behavior makes these cylindrical layered composite structures suitable for applications in multifuctional devices with multi-frequencies operation.

关键词： functional composites magnetoelectric multi-resonance frequencies

TOPOLOGY OPTIMIZATION OF TRUSS STRUCTURE WITH FUNDAMENTAL FREQUENCY AND FREQUENCY DOMAIN DYNAMIC RESPONSE CONSTRAINTS

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Acta Mechanica Solida Sinica 2006年第3期19卷 231-240页

作者： pan Jin Wang De-yu State key Lab of Ocean Engineering School of Naval Architecture Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai 200030 China

In this paper, adaptive genetic algorithm （AGA） is applied to topology optimization of truss structure with frequency domain excitations. The optimization constraints include fundamental frequency, displacement responses under force excitations and acceleration responses under foundation acceleration excitations. The roulette wheel selection operator, adaptive crossover and mutation operators are used as genetic operators. Some heuristic strategies are put forward to direct the deletion of the extra bars and nodes on truss structures. Three examples demonstrate that the proposed method can yield the optimum structure form and the lightest weight of the given ground structure while satisfying dynamic response constraints.

关键词： fundamental frequency dynamic response adaptive genetic algorithm topology optimization truss structure

On the Thermodynamic Aspect of Interaction Between Dislocations and Highly Mobile Interstitial Solute:With Special Focus on Recent Progress in Pd–H System:A Review

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Acta Metallurgica Sinica(English Letters) 2016年第2期29卷 120-128页

作者： Sheng Li yu-Zeng Chen yu-ke Cao Feng Liu State key Laboratory of Solidification Processing Northwestern Polytechnical University

It is well known that, in kinetics, the interaction between dislocations and interstitial solute normally exerts strong solute drag effect on dislocations, leading to strong solution hardening of the metals. However, due to the low mobility of interstitial solute in many metals, thermodynamic aspect of the interaction between dislocations and interstitial solute is often unobservable and omitted. It will be shown in this article by reviewing the H-induced behaviors in metal-H systems, especially the recent progress in Pd-H system that, when the interstitial solute atoms are highly mobile and able to collect in the vicinity of mobile dislocations easily, the scenario will be remarkably different. The interaction between dislocations and these highly mobile interstitial solute atoms, in thermodynamics, will reduce the line energy of dislo- cations and will facilitate the generation of dislocations, leading to an increase in dislocation density and an enhanced strain hardening of metals upon plastic deformation.

关键词： Plastic deformation Dislocation Interstitial solute Strengthening mechanism Thermodynamics

An effective invasive weed optimization algorithm for the flow shop scheduling with intermediate buffers

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An effective invasive weed optimization algorithm for the fl...

Bibliometric analysis of olaparib and pancreatic cancer from 2009 to 2022:A global perspective

第25届中国控制与决策会议

作者： Hong-yan Sang Quan-ke pan School of Mathematics Science Liaocheng University State key Laboratory of Synthetical Automation for Process Industries Northeastern University College of Computer Science Liaocheng University

ISBN: (纸本)9781467355322

The flow shop scheduling problem with intermediate bffers has important applications in modern industry. This paper addresses this problem with the objective of minimizing the makespan and presents an effective discrete IWO （DIWO） algorithm. In the proposed DIWO, a Nawaz-Enscore-Ham heuristic is used to generate an initial solution with a certain level of quality. An improved IWO-search mechanism is utilized to evolve in the global space. An efficient local search algorithm is embedded in the algorithm to enhance exploitation. Computational experiments demonstrate the effectiveness of the proposed DIWO algorithm for solving the problem.

关键词： Flow shop with intermediate buffers Makespan Discrete invasive weed optimization Local search

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World Journal of Gastrointestinal Oncology 2024年第11期16卷 4489-4505页

作者： Xu Feng Yi-Han Chai ke-Xin Jiang Wen-Bin Jiang Wen-Chao Chen yu pan Department of General Surgery Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310016Zhejiang ProvinceChina

BACKGROUND Genetic screening for breast cancer gene 1(BRCA)1/2 mutations can inform breast/ovarian/pancreatic cancer patients of suitable therapeutic *** to seven percent of pancreatic cancer patients have germline BRCA *** genes aid in DNA repair,especially homologous recombination,which impacts genomic stability and cancer cell ***1 regulates the cell cycle,ubiquitination,and chromatin remodeling,whereas BRCA2 stimulates the immune *** predict the efficacy of platinum chemotherapy or polymerase(PARP)inhibitors such as *** To determine the trends and future directions in the use of olaparib for pancreatic cancer *** To evaluate the trends in how olaparib works in pancreatic cancer,we performed a bibliometric *** hundred and ninety-six related publications were accessed from the Web of Science Core Collection and were published between 2009 and *** analytic parameters included publications,related citations,productive countries and institutes,influential authors,and keyword *** This study visualizes and discusses the current research,including the present global trends and future directions in olaparib and pancreatic ***,this study sheds light on optimizing the use of olaparib in pancreatic cancer treatment,Feng X et *** use of olaparib in pancreatic cancer WJGO https://*** 4490 November 15,2024 Volume 16 Issue 11 offering valuable guidance for researchers in this *** Our findings identified trends in olaparib and pancreatic cancer,with China and the USA leading and with global cooperation tightening.O'Reilly EM's team and Memorial Sloan-kettering had the highest *** Journal of Clinical Oncology was the most cited *** PARP inhibitors are emerging,and combination therapy is suggested for future therapeutic trends.

关键词： Olaparib pancreatic cancer Bibliometric analysis Breast cancer susceptibility gene Poly(adenosine diphosphate-ribose)polymerase

Combined Study of Structural, Magnetic and Transport Properties of Eu_(0.5)Ln_(0.5)BiS_(2)F Superconductor

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Chinese Physics Letters 2021年第4期38卷 111-116页

作者： Hui-Fei Zhai Bo Lin pan Zhang Hao Jiang yu-ke Li Guang-Han Cao Department of Physics Northwest UniversityXVan 710127China Department of Physics Zhejiang UniversityHangzhou 310027China School of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China Department of Physics Hangzhou Normal UniversityHangzhou 310036China

Superconductivity below 0.3 K and a charge-density-wave-like(CDW-like) anomaly at 280 K were observed in EuBiS_(2)F *** we report a systematic study of structural and transport properties in Eu_(0.5)Ln_(0.5)BiS_(2)F(Ln=La,Ce,Pr,Nd,Sm) by electrical resistivity,magnetization,and specific heat *** lattice constants have a significant change upon rare earth substitution for Eu,suggesting an effective *** Ln is changed from Sm to La,the superconducting transition temperature T_(c) increases from 1.55 K to 2.8 *** contrast to the metallic parent compound,the temperature dependence of electrical resistivity displays semiconductinglike behavior for all the Eu_(0.5)Ln_(0.5)BiS_(2)F ***,the CDW-like anomaly observed in EuBiS2F is completely *** the mixed valence state in the undoped compound,Eu ions in these rareearth-doped samples are mainly divalent.A specific anomaly at 1.3 K resembling that in EuBiS_(2)F suggests the coexistence of superconductivity and spin glass state for Eu_(0.5)Ln_(0.5)BiS_(2)*** of ferromagnetic order and superconductivity is found below 2.2 K in Eu_(0.5)Ln_(0.5)BiS_(2)F *** results supplies a rich diagram showing that many interesting properties can be induced in BiS_(2)-based compounds.

关键词： resistivity compound Superconductor

Revisiting the single-step synthesis of quantum dots:The hidden ligand-promoted surface reaction channels

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Nano Research 2023年第4期16卷 5817-5825页

作者： Qiyu yu Jiaxin Song ke Li Lili Xiao College of Materials Science and Engineering Sichuan University of Science and EngineeringZigong 643000China key Laboratory of Material Corrosion and Protection of Sichuan Province Zigong 643000China College of Physics Sichuan UniversityChengdu 610065China

In this work,we revisited the single-step synthesis of CdE(E=S,Se,and Te)quantum dots(QDs).Powdered CdO and elemental chalcogen were directly used for heating-up ***,the in situ dissolution of the solid precursors and related QD formation channels were preliminarily *** general,QDs were generated from homogeneous reactions between dissolved cadmium and chalcogen precursors in bulk *** found that,during single-step synthesis,both the dissolution of CdO and selenium proceeded faster than their ex situ dissolution *** explain this result,we proposed the existence of extra surface reaction channels for QD *** is,QDs could also be generated via on-surface reactions between the solid precursors and the dissolved counter precursors(as“ligands”).The happening of these extra surface reactions would increase the overall dissolution rate of CdO and ***,the circulation of oleic acid which is peculiar to such single-step synthesis should also partly account for the accelerated dissolution of ***,by comparing with two-step synthesis using pre-dissolved CdO,we presented that such single-step synthesis was reliable in making uniform CdE QDs with good *** work reaffirmed the great potential of this single-step strategy in cost-effective synthesis of monodisperse ***,the ligand-promoted surface reaction channels would be applicable in solution-phase synthesis of metal chalcogenide nanocrystals from solid precursors.

关键词： quantum dots reaction channel surface reaction single-step synthesis heating-up synthesis

On the robustness of median sampling in noisy evolutionary optimization

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Science China(Information Sciences) 2021年第5期64卷 32-44页

作者： Chao BIAN Chao QIAN Yang yu ke TANG State key Laboratory for Novel Software Technology Nanjing University Shenzhen key Laboratory of Computational Intelligence Department of Computer Science and EngineeringSouthern University of Science and Technology

Evolutionary algorithms(EAs) are a sort of nature-inspired metaheuristics, which have wide applications in various practical optimization problems. In these problems, objective evaluations are usually inaccurate, because noise is almost inevitable in real world, and it is a crucial issue to weaken the negative effect caused by noise. Sampling is a popular strategy, which evaluates the objective a couple of times, and employs the mean of these evaluation results as an estimate of the objective value. In this work, we introduce a novel sampling method, median sampling, into EAs, and illustrate its properties and usefulness theoretically by solving OneMax, the problem of maximizing the number of 1 s in a bit string. Instead of the mean, median sampling employs the median of the evaluation results as an estimate. Through rigorous theoretical analysis on OneMax under the commonly used onebit noise, we show that median sampling reduces the expected runtime exponentially. Next, through two special noise models, we show that when the 2-quantile of the noisy fitness increases with the true fitness, median sampling can be better than mean sampling; otherwise,it may fail and mean sampling can be better. The results may guide us to employ median sampling properly in practical applications.

关键词： evolutionary algorithms noisy optimization median sampling computational complexity runtime analysis

Fatal risk in hysteroscopic surgery that should not be overlooked:Uterine artery pseudoaneurysm

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World Journal of Clinical Cases 2025年第8期13卷 53-56页

作者： Mi-Si He ke-Xiao yu Chen Wang Department of Gynecologic Oncology Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer HospitalChongqing 400030China Department of Orthopedics Chongqing Hospital of Traditional Chinese MedicineChongqing 400021China

This article provides a detailed account of the diagnosis and treatment of a case involving a uterine artery pseudoaneurysm(UAP),as well as an analysis of UAP *** finding emphasizes that UAP should be considered in patients presenting with abnormal genital bleeding after hysteroscopy and offers valuable insights and lessons for gynecologists in hysteroscopic *** patient underwent timely relevant examinations to confirm the diagnosis,allowing for crucial time required for her *** this study,the primary cause of UAP formation in the patient was attributed to a prior hysteroscopic surgical procedure conducted at another medical facility,suggesting that the selection and imple-mentation of dilatation catheters are some of the predisposing factors for *** conclusion,this case study offers a comprehensive analysis of the etiology of UAP and effectively provides timely diagnosis and treatment,offering valuable in-sights for the clinical diagnosis and management of UAP.

关键词： Editorial Uterine artery pseudoaneurysm Case report Hysteroscopic surgery Uterine arteriovenous malformations