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Multipartite Spin Entangled States in Quantum Dots with a Quantum Databus Based on Nano Electro-Mechanical Resonator

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Chinese Physics Letters 2011年第4期28卷 19-21页

作者： zhu zhi-cheng TU Tao GUO Guo-Ping Key Laboratory of Quantum Information Chinese Academy of SciencesUniversity of Science and Technology of ChinaHefei 230026

We propose an efficient method to create multipartite spin entangled states in quantum dots coupled to a nano electro-mechanical resonator *** method,based on the interaction between electron spins confined in quantum dots and the motion of magnetized nano electro-mechanical resonators,can enable a coherent spin-spin coupling over long distances and in principle be applied to an arbitrarily large number of electronic spins.

关键词： quantum arbitrarily parti

基于实验参数的Dy^(3+),Na^(+):PbGa_(2)S_(4)中红外激光理论研究

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物理学报 2024年第16期73卷 72-81页

作者：余学舟黄昌保吴海信胡倩倩刘国晋李亚朱志成祁华贝倪友保王振友中国科学院合肥物质科学研究院安徽光学精密机械研究所安徽省光子器件与材料重点实验室合肥230031 中国科学技术大学合肥230026

基于加工出的Dy^(3+),Na^(+):PbGa_(2)S_(4)晶体元件的吸收光谱测试以及Judd-Ofelt理论计算数据,通过互易法计算出各发光能级间的荧光吸收与发射截面.通过测试与计算得到的数据,数值模拟了采用1.3μm和1.7μm泵浦源直接抽运Dy^(3+),Na^(... 详细信息

基于加工出的Dy^(3+),Na^(+):PbGa_(2)S_(4)晶体元件的吸收光谱测试以及Judd-Ofelt理论计算数据,通过互易法计算出各发光能级间的荧光吸收与发射截面.通过测试与计算得到的数据,数值模拟了采用1.3μm和1.7μm泵浦源直接抽运Dy^(3+),Na^(+):PbGa_(2)S_(4)晶体产生4.3μm中红外激光的实验方案.计算分析了激光功率、增益和吸收系数在晶体内的空间分布,分析比较了泵浦光功率、元件长度和输出镜反射率对输出功率的影响.模型中在光路中引入2.9μm级联激光振荡,以此抽运因为4.3μm发光堆积在能级^(6)H_(13/2)上的粒子数,发现其可以有效降低能级^(6)H_(11/2)到^(6)H_(13/2)跃迁的自终止效应,提高激光输出功率.计算结果表明:采用1.3μm和1.7μm泵浦源,当功率都为4 W时,最大的输出功率分别为103 mW和315 mW,斜率效率可达到2.8%和8.0%.数值模拟的结果对下一步晶体元件的改良加工以及光路搭建参数的选取提供了一定的指导意义.

关键词：中红外激光数值模拟 PbGa_(2)S_(4) 晶体

户外活动与儿童青少年近视率的关系:系统评价与Meta分析

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中国斜视与小儿眼科杂志 2024年第3期32卷 22-24+49-51+14页

作者：朱志成瞿纯宜林月唐志明新余学院成都体育学院广西体育高等专科学校体育运动学院

目的评价户外活动对儿童青少年近视的影响。方法对PubMed、Embase、Cochrane Library、Web of Science、中国知网、万方、重庆维普数据库进行检索,以获取户外活动干预儿童青少年近视的研究,采用RevMan 5.4对纳入的文献数据进行统计分... 详细信息

目的评价户外活动对儿童青少年近视的影响。方法对PubMed、Embase、Cochrane Library、Web of Science、中国知网、万方、重庆维普数据库进行检索,以获取户外活动干预儿童青少年近视的研究,采用RevMan 5.4对纳入的文献数据进行统计分析,STATA 16.0进行敏感性分析。结果共纳入10项研究,结果表明户外活动可显著降低儿童青少年近视发生率[OR=0.56,95%CI (0.49,0.64),PP<0.00001]、等效球镜度数[MD=0.18,95%CI (0.03,0.32),P=0.02]、眼内压[MD=-0.44,95%CI (-0.49,-0.39),P<0.00001];但是对屈光度、眼轴长度、角膜曲率的影响无统计学意义。结论户外活动可显著降低儿童青少年近视率、等效球镜度数以及眼内压;但纳入研究较少,未来需要纳入更多的国外研究,来探索户外活动对儿童青少年近视率的关系。

关键词：户外活动儿童青少年近视 Meta分析

Clinical analysis of multiple primary gastrointestinal malignant tumors:A 10-year case review of a single-center

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1204-1212页

作者： cheng-Lou zhu Ling-zhi Peng The First School of Clinical Medicine Lanzhou UniversityLanzhou 730000Gansu ProvinceChina Department of Surgical Oncology Gansu Provincial HospitalLanzhou 730000Gansu ProvinceChina

BACKGROUND Multiple primary malignant tumors(MPMTs)was first described by Billroth as early as 1889,with the first report published by Warren and Gates in *** then,numerous cases have been reported.A literature review of 1104269 patients with cancer revealed that the incidence of MPMTs ranged from 0.73 to 11.7%.In recent years,however,there has been a significant upward trend in the incidence of this phenomenon,which may be associated with many different factors,including the advancement of modern diagnostic procedures facilitating the examination and diagnosis of more MPMTs,increased exposure to chemotherapy and radiotherapy that exacerbate the risk of new malignant tumors in patients with cancer,and prolonged survival of patients with cancer allowing sufficient time for the development of new primary *** To analyze the incidence,clinical features,treatment factors,prevalence,and prognosis of patients with MPMTs in the gastrointestinal tract treated in a single ***,we analyzed the different tumor combinations,time interval between the occurrence of tumors,and *** This retrospective cohort study analyzed 8059 patients with pathologically confirmed gastrointestinal malignant tumors treated at the Gansu Province Hospital in Lanzhou,Gansu,China between June 2011 and June *** these,85 patients had *** clinical features,treatment factors,prevalence,and prognosis of this latter cohort were *** The incidence of MPMTs in patients with gastrointestinal malignant tumors was 1.05%(85/8059),including 83 double primary malignant tumors and two triple primary malignant tumors of which 57(67.06%)were synchronous MPMTs(SMPMTs)and 28(32.94%)were metachronous MPMTs(MMPMTs).The most frequent associations were found between the rectum colon cancers within the SMPMT category and the gastric-colon cancers within the MMPMT *** the MMPMTs,the median interval was 53 *** overall 1-,3-and 5-year survival rates f

关键词： Multiple primary malignant tumors Clinical characteristics Gastrointestinal tract Prognosis Epidemiology

Crystal Structure of 7,9-Diphenyl-8 H- cyclopentacenaphthylen 8-one(acecyclone)

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Chinese Journal of Structural Chemistry 2000年第3期19卷 174-176页

作者： SHI Bao-Chuan GU Wei-Jing zhu zhi-cheng ZAO Han-Hua DU Zuo-Dong CHEN Jian-Hua Department of Chemistry Nanjing Normal UniversityNanjing210097 Department of Chemistry Shandong UniversityJinan250100

In the title compound, C 27 H 16 O, M r =356.42, orthorhombic, Pbcn, a=22.549(6), b=10.738(4), c=7.316(5), V=1771(2) 3, Z=4, D calc =1 336g/cm 3, F(000)=744, μ (Mo Kα )=0.08mm -1 and final R=0.041, R w =0.045 for 1009 reflections( I≥3.00σ(I )). The molecular structure of 7,9 diphenyl 8H cyclopentacenaphthylen 8 one(acecyclone) is symmetrical and each atom except two benzene rings lies approximately in the same plane.

关键词： crystal structure acecyclone fused ring compound

Electromagnetic scattering and imaging simulation of extremely large-scale sea-ship scene based on GPU parallel technology

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Journal of Electronic Science and Technology 2024年第2期22卷 16-23页

作者： cheng-Wei Zhang zhi-Qin Zhao Wei Yang Li-Lai Zhou Hai-Yu zhu Southwest China Institute of Electronic Technology Chengdu610036China School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China Tencent Company Shenzhen518054China

Aiming to solve the bottleneck problem of electromagnetic scattering simulation in the scenes of extremely large-scale seas and ships,a high-frequency method by using graphics processing unit(GPU)parallel acceleration technique is *** the implementation of different electromagnetic methods of physical optics(PO),shooting and bouncing ray(SBR),and physical theory of diffraction(PTD),a parallel computing scheme based on the CPU-GPU parallel computing scheme is realized to balance computing ***,a multi-GPU framework is further proposed to solve the computational difficulty caused by the massive number of ray tubes in the ray tracing *** using the established simulation platform,signals of ships at different seas are simulated and their images are achieved as *** is shown that the higher sea states degrade the averaged peak signal-to-noise ratio(PSNR)of radar image.

关键词： Multi graphics processing unit Radar imaging Sea-ship Shooting and bouncing rays

Expression of Catalytic Domain of Protein Tyrosine Phosphatase 1B and Preparation of Its Polyclonal Antibody

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Chemical Research in Chinese Universities 2007年第2期23卷 204-207页

作者： SHI Dong-lei DONG Hong-bo zhu zhi-cheng SUN Mei SU Ji-quan ZHANG Xing-yi XU Yue-chi FU Xue-qi Department of Thoracic Surgery The Second Hospital of Jilin University Jilin University Changchun 130012 P. R. China College of Pharmacy Jilin University Changchun 130012 P. R. China Department of Pathology The Second Hospital of Jilin UniversityJilin University Changchun 130012 P. R. China College of Life Sciences Jilin University Changchun 130012 P. R. China

This study focuses on the expression of human protein tyrosine phosphatase 1B （PTP1 B） catalytic domain （△PTP1B） and preparation of polyclonal antibody against △PTP1B. △PTP1B gene was PCR amplified with the cDNA of human PTP1B as the template, and cloned into the pT7 expression vector. The recombinant pT7-△PTP1B was expressed in E. eoli Rosetta（ DE3 ） host cells and purified. The antiserum was prepared by immunizing rabhit with purified recombinant △PTP1B. The polyclonal antibody against △PTP1B was purified by PVDF immobilized antigen affinity chromatography. △PTP1B was correctly cloned, expressed, and purified as confirmed by PCR, DNA sequence analysis, SDS-PAGE western blotting, and ILPLC. The titer and sensitivity of the antibody were 1：2500（ volume ratio） and 0. 1 ng, respectively. This study provides an important basis for further studying the biological function of PTP1B and its relationship with human diseases.

关键词： Protein tyrosine phosphatase IB Catalytic domain Polyclonal antibody

Expression and Characterization of Catalytic Domain of T Cell Protein Tyrosine Phosphatase(ΔTC-PTP)——Immunohistochemical Study of ΔTC-PTP Expression in Non-small Cell Lung Carcinomas

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Chemical Research in Chinese Universities 2007年第3期23卷 289-296页

作者： zhu zhi-cheng SUN Mei ZHANG Xing-yi LIU Ke-xiang SHI Dong-lei LI Jin-dong SU Ji-quan XU Yue-chi FU Xue-qi Department of Cardiovascular Surgery The Second Hospital of Jilin University Changchun 130041 P. R. China Department of Pathology The Second Hospital of Jilin University Changchun 130041 P. R. China Department of Thoracic Surgery The Second Hospital of Jilin University Changchun 130041 P. R. China College of Life Sciences Jilin University Changchun 130023 P. R. China

This study objective was to express and characterize the catalytic domain of the human T cell protein tyrosine phosphatase（△TC-PTP） and to study immunohistochemically the expression of △TC-PTP in human non-small cell lung cancers. △TC-PTP gene was PCR amplified with the cDNA of human TC-PTP as template, and cloned into the pT7 expression vector. The recombinant pT7-△TC-PTP was expressed in E. coli Rosetta （ DE3 ） host cells and puri- fied. The enzymatic characteristics of △TC-PTP including enzyme activity and kinetics assay were measured. The antiserum was prepared by immunizing rabbit with the purified recombinant △TC-PTP. Rabbit polyclonal antibody against △TC-PTP was purified by PVDF immobilized antigen affinity chromatography. Immunohistochemical staining of lung cancer tissues was performed with antibody against △TC-PTP protein. △TC-PTP gene was correctly cloned, expressed, and purified. The recombinant △TC-PTP had a highly catalytic activity of PTPase. Squamous cell lung carcinoma showed a significantly higher expression rate of △TC-PTP （76. 92%, 10/13 ） than adenocarcinoma （57.14%, 4/7） and normal lung tissue（20%, 1/5 ）. This study represents the first demonstration that △TC-PTP is highly expressed in human squamous cell lung carcinomas. In addition, this study provides an important basis for further studying the biological function of TC-PTP and its relationship with lung carcinomas and other diseases.

关键词： T cell protein tyrosine phosphatase Catalytic domain Characterization Lung cancer

Growth process,defects,and dopants of bulkβ-Ga_(2)O_(3)semiconductor single crystals

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China Foundry 2024年第5期21卷 491-506页

作者： Yan-shen Wang Ming-zhi zhu Yuan Liu School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology(Ministry of Education) Beijing 100084China

β-gallium oxide(β-Ga2O3),as the typical representative of the fourth generation of semiconductors,has attracted increasing attention owing to its ultra-wide bandgap,superior optical properties,and excellent tolerance to high temperature and *** to the single crystals of other semiconductors,high-quality and large-sizeβ-Ga_(2)O_(3)single crystals can be grown with low-cost melting methods,making them highly *** this review,the growth process,defects,and dopants ofβ-Ga_(2)O_(3)are primarily ***,the growth process(e.g.,decomposition,crucible corrosion,spiral growth,and development)ofβ-Ga_(2)O_(3)single crystals are summarized and compared in ***,the defects ofβ-Ga_(2)O_(3)single crystals and the influence of defects on Schottky barrier diode(SBD)devices are emphatically ***,the influences of impurities and intrinsic defects on the electronic and optical properties ofβ-Ga_(2)O_(3)are also briefly *** this comprehensive analysis,the article offers a concise summary of the current state,challenges and prospects ofβ-Ga_(2)O_(3)single crystals.

关键词： β-Ga_(2)O_(3) single-crystal growth defects dopants semiconductor