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Optical manipulation of ratio-designable Janus microspheres

Photonics Research 2024年第6期12卷 1239-1249页

作者： YULU CHEN CONG ZHAI XIAOQING GAO han WANG ZUZENG LIN XIAOWEI ZHOU chunguang HU State Key Laboratory of Precision Measuring Technology and Instruments Tianjin UniversityTianjin 300072China

Angular optical trapping based on Janus microspheres has been proven to be a novel method to achieve controllable *** contrast to natural birefringent crystals,Janus microspheres are chemically synthesized of two compositions with different refractive ***,their structures can be artificially regulated,which brings excellent potential for fine and multi-degree-of-freedom manipulation in the optical ***,it is a considerable challenge to model the interaction of heterogeneous particles with the optical field,and there has also been no experimental study on the optical manipulation of microspheres with such designable refractive index *** the specific structure affects the kinematic properties of Janus microspheres remains ***,we report systematic research on the optical trapping and rotating of various ratio-designable Janus *** employ an efficient T-matrix method to rapidly calculate the optical force and torque on Janus microspheres to obtain their trapped postures and rotational characteristics in the optical *** have developed a robust microfluidic-based scheme to prepare Janus *** experimental results demonstrate that within a specific ratio range,the rotation radii of microspheres vary linearly and the orientations of microsphere are always aligned with the light polarization *** is of great importance in guiding the design of Janus *** their orientations flip at a particular ratio,all consistent with the *** work provides a reliable theoretical analysis and experimental strategy for studying the interaction of heterogeneous particles with the optical field and further expands the diverse manipulation capabilities of optical tweezers.

关键词： polarization ratio refractive

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A NEW ARCHITECTURE FOR NAL PARSING AND ENTROPY DECODING CO-DESIGN IN H.264/AVC

A NEW ARCHITECTURE FOR NAL PARSING AND ENTROPY DECODING CO-D...

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2007中国宁波国际计算机科学与技术学术大会

作者： Ding Jia han chunguang Ningbo Dahongying Vocational Technical College

This paper propose a novel efficient implementation of NAL parsing and Entropy decoding co-design based on SoC *** coding in H.264/AVC is optimized for compression efficiency while bringing great complexity to implementation,the process of which is interweaved with NAL *** propose a novel architecture for the co-design of NAL parsing and Entropy decoding,by software and hardware *** Scan is designed in combination with DEMUX,by hardware,and NAL Parsing is implemented by software on an embedded RISC CPU,with CAVLC and CAB AC decoder as the hardware *** typical HD 1080 i format video,experimental result shows that the software part consumes only 2 *** the clock constraint of 200 MHz,the cost for CABAC Decoder is about 26100 gates under a 0.18 um CMOS technology,and CAVLC 5100 *** design is proved to achieve the real-time processing requirement.

关键词： H264 NAL CAVLC CABAC Co-design

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SURVERY ON AUTOMATIC SPEAKER RECOGNITION

SURVERY ON AUTOMATIC SPEAKER RECOGNITION

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2007中国宁波国际计算机科学与技术学术大会

作者： Hu Bing han chunguang Ningbo Dahongying Vocational Technical College

Speaker recognition is an important part of speech signal *** a very powerful tool for problems requiring identity recognition,automatic speaker recognition is very important to our information *** is one of the current research *** this paper we introduce the basic principium,describe applications,underlying techniques and some indications of *** this we discuss some of the strong points and weaknesses of current speaker recognition technologies and outline some potential future trends in research and development.

关键词： Speaker recognition Speaker modeling Recognition method

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Evaluation of Resistance of Different Kiwifruit Varieties (Lines) to Canker Disease and Brown Spot Disease

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Phyton-International Journal of Experimental Botany 2024年第6期93卷 1249-1261页

作者： Wenwen Su Chongpei Zheng Zhencheng han chunguang Ren Di Wu Tao Li Yi Yang Weijie Li Institute of Mountain Resources of Guizhou Province Guizhou Academy of SciencesGuiyang550001China Guizhou Botanical Garden Guizhou Academy of SciencesGuiyang550001China Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education) Institute of Agro-Bioengineering/College of Life SciencesGuizhou UniversityGuiyang550025China

Kiwifruit canker and brown spot are signiﬁcant diseases affecting kiwis,caused by Pseudomonas syringae patho-genic variations(Pseudomonas syringae ***(Psa))and Corynesporapolytica(Corynespora cassiicola).At present,the research on canker disease and brown spot disease mainly focuses on the isolation and identiﬁcation of pathogenic bacteria,drug control,resistance gene mining and functional veriﬁ*** has proved that breeding disease resistant varieties are an effective method to control canker disease and brown spot ***,most existing cultivars lack genes for canker and brown spot *** kiwifruit resources in nat-ure exhibit extensive genetic diversity due to prolonged natural selection,containing numerous resistance ***,due to insufﬁcient understanding of the resistance of most kiwifruit varieties(lines)to canker disease and brown spot disease,some high-quality resources have not been fully *** incidence of canker and brown spot of 18 kiwifruit cultivars(lines)was measured by inoculating isolated branches and leaves,and their resistance to canker and brown spot was analyzed according to the length,disease index,mean diameter,and systematic *** results were as follows:Among 18 different kiwifruit varieties(lines)for canker disease,there were two highly resistant materials,eight disease-resistant materials,four disease-susceptible materials,and two highly susceptible ***,regarding brown spot disease,there were one highly resistant material,ﬁve dis-ease-resistant materials,four susceptible materials,and three highly susceptible ***,four resources were resistant to both *** outcomes provided a theoretical basis for breeding kiwifruit against canker and brown spot.

关键词： Kiwifruit canker disease brown spot resistance evaluation

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<sup>11</sup>C-Labeling of the C(1)-C(10) Dihydroxy Acid Moiety for the Study on the Synthesis of Kulokekahilide-2 PET Tracer

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International Journal of Organic Chemistry 2014年第4期4卷 269-277页

作者： chunguang han Hisashi Doi Junji Kimura Yoichi Nakao Masaaki Suzuki Research Center for Materials Science Nagoya University Nagoya Japan RIKEN Center for Life Science Technologies Kobe Japan Department of Chemistry and Biological Science College of Science and Engineering Aoyama Gakuin University Sagamihara Japan Department of Chemistry and Biochemistry School of Advanced Science and Engineering Waseda University Tokyo Japan National Center for Geriatrics and Gerontology Obu City Japan

11C-labeled C1-C10 partial structure of kulokekahilide-2 (1) was successfully synthesized based on Pd0-mediated rapid C-[11C]methylation using [11C]methyl iodide and pinacol alkenylboronate. The preparation of organoboron intermediate via olefin cross-metathesis is also a crucial procedure for the synthesis of 11C-labeling C1-C10 dihy-droxy acid moiety of 1.

关键词： Kulokekahilide-2 Carbon-11 Boron C-C Coupling Isotopic Labeling

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Integrative analysis of tumor stemness and immune microenvironment deciphers novel molecular subtypes in hepatocellular carcinoma

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Genes & Diseases 2024年第5期11卷 81-84页

作者： Zhiyi Wang Shuang Chen Dongxiao Li Hui Xu Siyuan Weng Yuyuan Zhang Yuqing Ren chunguang Guo Xiuling Li Zaoqu Liu Xinwei han Department of Interventional Radiology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China Department of Gastroenterology Henan Provincial People’s HospitalZhengzhou University People’s HospitalZhengzhouHenan 450004China Center of Reproductive Medicine The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China Department of Respiratory and Critical Care Medicine The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China Department of Endovascular Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China State Key Laboratory of Proteomics Beijing Proteome Research CenterNational Center for Protein Sciences(Beijing)Beijing Institute of LifeomicsBeijing 102206China State Key Laboratory of Medical Molecular Biology Institute of Basic Medical SciencesChinese Academy of Medical SciencesDepartment of PathophysiologyPeking Union Medical CollegeBeijing 100730China

Hepatocellular carcinoma(HCC)is a highly heterogeneous tumor,with dynamic equilibrium and complex interplay between its intricate tumor nature and ambient tumor immune microenvironment(TIME).1 Elegant research has indicated that cancer stem cells,a small subset of neoplastic cells confined within dedicated niches,display stem cell-like properties and interact with cells in TIME,thereby imparting an indelible impact on stemness regulation,tumor heterogeneity,and cancer cell plasticity.2 Previous taxonomies solely from the perspective of stemness or TIME may introduce some degree of bias in the comprehension of HCC carcinogenesis,3,4 and thus it is of paramount importance to systematically consider tumor stemness and TIME as a whole to truly portray the biological landscape of HCC.

关键词： thereby landscape stem

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离轴楔形非球面平行磨削及补偿技术研究

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机械工程学报 2011年第3期47卷 193-198页

作者：姜晨郭隐彪潘日韩春光张世汉厦门大学机电工程系厦门361005

针对精密光学系统中对高精度离轴楔形非球面透镜的加工要求,提出采用由倾角可调三轴摆动式数控夹具系统和精密磨床数控系统(Computer numerical control,CNC)协调完成离轴楔形非球面透镜的高效加工方法。设计三轴摆动式数控夹具机构及... 详细信息

针对精密光学系统中对高精度离轴楔形非球面透镜的加工要求,提出采用由倾角可调三轴摆动式数控夹具系统和精密磨床数控系统(Computer numerical control,CNC)协调完成离轴楔形非球面透镜的高效加工方法。设计三轴摆动式数控夹具机构及控制系统相关程序,完成夹具制造及调整,在数控精密平面磨床上实现对离轴楔形非球面平行磨削加工。倾角可调夹具的设计简化原有的加工工序,提高加工效率。根据平行磨削加工原理对加工插补误差和工件形面误差进行模拟计算,结果表明:夹具旋转误差以及工件的形状尺寸会对加工精度产生较大影响。根据模拟结果和平行磨削方法原理,设计工件加工误差的在位补偿方法。通过平行磨削加工及补偿试验证明:在位补偿方法可以有效提高工件的加工精度。

关键词：离轴楔形非球面透镜平行磨削数控夹具圆弧砂轮加工精度误差补偿

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Association of Polymorphisms in Angiotensin-converting Enzyme and Type 1 Angiotensin Ⅱ Receptor Genes with Coronary Heart Disease and the Severity of Coronary Artery Stenosis

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Journal of Huazhong University of Science and Technology(Medical Sciences) 2007年第6期27卷 660-663页

作者：邱春光韩战营卢文杰张存泰 Department of Cardiology Tongji Hospital Huazhong University of Science and Technology

To explore the relation of angiotensin-converting enzyme （ACE） and angiotensin Ⅱ type 1 receptor （AT1R） gene polymorphism with coronary heart disease （CHD） and the severity of coronary artery stenosis, 130 CHD patients who underwent coronary angiography were examined for the number of affected coronary vessels （≥75% stenosis） and coronary Jeopardy score. The insertion/deletion of ACE gene polymorphism and AT1R gene polymorphism （an A→C transversion at nucleotide position 1166） were detected by using polymerase chain reaction （PCR） and restriction fragment length polymorphism （RFLP） in CHD patients and 90 healthy serving as controls. The resuits showed that DD genotype and of ACE were more frequent in CHD patients than that in control group （38.5% vs 14.4%, P〈0.001）. The frequency of the ATIR A/C genotypes did not differ between the patients and the controls （10% vs 13.1%, P〉0.05）. The relative risk associated with the ACE-DD was increased by AT1R-AC genotype. Neither the number of affected coronary vessels nor the coronary score differed among the ACE I/D genotypes （P〉0.05）. But the number of affected coronary vessels and the coronary score were significantly greater in the patients with the AT1R-AC genotype than in those with the AA genotype （P〈0.05）. In conclusion, DD genotype may be risk factor for CHD and MI in Chinese people, and is not responsible for the development of the coronary artery stenosis. The AT1R-C allele may increase the relative risk associated with the ACE-DD genotype, and may be involved in the development of the stenosis of coronary artery.

关键词： angiotensin Ⅰ-converting enzyme angiotensin Ⅱ receptor gene polymorphism coronary angiography

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复杂光照条件下串联光伏阵列特性研究及最大功率跟踪

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太阳能学报 2017年第9期38卷 2329-2336页

作者：吕盛华王磊任春光韩肖清郭文娇太原理工大学电气与动力工程学院太原030024

分析复杂光照条件下旁路二极管的接入对串联光伏阵列输出特性的影响,根据单个光伏模块的数学模型,导出复杂光照条件下串联光伏阵列的数学模型;通过对各种光照条件下串联光伏阵列输出特性的分析研究,总结U-I曲线中呈现恒流源特性的电压... 详细信息

分析复杂光照条件下旁路二极管的接入对串联光伏阵列输出特性的影响,根据单个光伏模块的数学模型,导出复杂光照条件下串联光伏阵列的数学模型;通过对各种光照条件下串联光伏阵列输出特性的分析研究,总结U-I曲线中呈现恒流源特性的电压区间与不同光照之间存在的关系,提出一种在复杂光照条件下快速追踪串联光伏阵列最大功率点(maximum power point,MPP)的算法,算法能够在复杂光照导致的多个MPP中确定全局最大功率点(global maximum power point,GMPP)。仿真表明,提出的算法能够识别阵列是否处于复杂光照情况下并快速追踪到GMPP。

关键词：串联光伏阵列复杂光照条件全局最大功率点控制算法

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大风区大跨连续刚构三角挂篮抗风加固分析及研究

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铁道建筑技术 2018年第4期 60-64页

作者：韩春光中铁建大桥工程局集团第一工程有限公司辽宁大连116031

随着我国桥梁行业的发展,大跨度连续刚构桥的工程应用案例不断涌现。三角挂篮作为连续刚构桥悬臂施工中最常用的临时钢结构,在沿海台风作用下可能会发生较大的变形甚至导致整体破坏。本文针对平潭海峡公铁两用跨海大桥施工用三角挂篮,... 详细信息

随着我国桥梁行业的发展,大跨度连续刚构桥的工程应用案例不断涌现。三角挂篮作为连续刚构桥悬臂施工中最常用的临时钢结构,在沿海台风作用下可能会发生较大的变形甚至导致整体破坏。本文针对平潭海峡公铁两用跨海大桥施工用三角挂篮,采用大型商用有限元设计软件MIDAS/CIVIL对其在台风荷载作用下的结构安全性进行了分析,量化三角挂篮在14级和16级台风荷载作用下的强度、刚度以及稳定性。在此基础上,对该三角挂篮进行加固,并对加固后的三角挂篮进行建模分析。研究表明,未加固的三角挂篮在14级和16级风荷载作用下发生整体变形,峰值位移分别达到5.1 m和7.7 m,远超过规范限值的要求。采用槽钢作为横向加固杆件,保证挂篮底部横梁形成几何不变体系,可以显著提高三角挂篮在风荷载作用下的工作性能,峰值位移和峰值应力分别为6.86 mm和46.4 MPa,均满足规范限值的要求。本文有限元分析结果可为实际工程施工提供理论依据。

关键词：三角挂篮有限元刚度稳定性加固分析

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