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Isolated structures in two-dimensional optical superlattice

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Frontiers of physics 2017年第5期12卷 135-141页

作者： Xin-Hao zou Bao-guo Yang Xia xu peng-Ju Tang Xiao-ji Zhou School of Electronics Engineering & Computer Science Peking University Beijing 100871 China

Overlaying commensurate optical lattices with various configurations called superlattices can lead to exotic lattice topologies and, in turn, a discovery of novel physics. In this study, by overlapping the maxima of lattices, a new isolated structure is created, while the interference of minima can generate various ＂sublattice＂ patterns. Three different kinds of primitive lattices are used to demonstrate isolated square, triangular, and hexagonal ＂sublattice＂ structures in a two-dimensional optical superlattice, the patterns of which can be manipulated dynamically by tuning the polarization, frequency, and intensity of laser beams. In addition, we propose the method of altering the relative phase to adjust the tunneling amplitudes in ＂sublattices＇. Our configurations provide unique opportunities to study particle entanglement in ＂lattices＂ formed by intersecting wells and to implement special quantum logic gates in exotic lattice geometries.

关键词： optical superlattice isolated structures exotic lattice geometries quantum logic gates

Characterization of Interfacial Bonding Mechanism for Graphene-Modified Powder Metallurgy Nickle-Based Superalloy

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Acta Metallurgica Sinica(English Letters) 2018年第7期31卷 753-760页

作者： jin-Wen zou Xiao-Feng Wang jie Yang Chuan-Bo ji xu-Qing Wang Xian-Qiang Fan Zhi-peng guo AECC Beijing Institute of Aeronautical Materials Beijing 100089China Science and Technology on Advanced High Temperature Structural Materials Laboratory Beijing Institute of Aeronautical MaterialsBeijing 100089China School of Materials Science and Engineering Tsinghua UniversityBeijing 100089China

A modified FGH96 superalloy using 0.1 wt% graphene was successfully prepared using the wet mixing method. The interracial bonding mechanism between the graphene and the superalloy matrix was characterized using optical micro- scope, scanning electronic microscope, transmission electronic microscope and X-ray tomography. The results revealed that the graphene could be dispersed uniformly inside the matrix of the superalloy, and the bonding interface between graphene and the superalloy showed a rather diffusion instead of abrupt distinction, suggesting that the interface was formed via chemical fusion rather than a mechanical combination. The uniform dispersity of the graphene inside the superalloy matrix could improve the tensile properties significantly, including tensile strength, plasticity and yield strength. The existence of the graphene at the fracture surface further verified that the graphene could increase the effective bearing force of the material during the tensile test.

关键词： Powder metallurgical(PM)superalloy Graphene Interfacial binding mechanism Mechanical propertiesCharacterization

Clinical analysis of secondary penile cancer:a case series at a tertiary referral center in China

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Asian Journal of Andrology 2024年第2期26卷 225-226页

作者： Xiao-Yu Li Chun-Ru xu xing ji Zhen-peng Zhu Zhen-Ke guo Tian-Yu Cai jian Lin Department of Urology Peking University First HospitalBeijing 100034China Institute of Urology Peking UniversityBeijing 100034China National Urological Cancer Center Beijing 100034China Beijing Key Laboratory of Urogenital Diseases(Male)Molecular Diagnosis and Treatment Center Beijing 100034China

Dear Editor,Secondary penile cancer is an extremely rare condition that refers to the metastasis of other malignancies to the *** are limited reports on secondary penile cancer in Asian populations,and perceptions about this disease are extremely *** reviewed and analyzed the data of patients diagnosed with secondary penile cancer based on the pathological findings at Peking University First Hospital in Beijing,China,aiming to expand the clinical reference for this rare disease.

关键词： cancer rare finding

BARMR1-mediated sorafenib resistance is derived through stem-like property acquisition by activating integrin-FAK signaling pathways

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Signal Transduction and Targeted Therapy 2020年第1期5卷 1623-1625页

作者： xing Rong guo Meng Ye Shan Yu Huang Zong Li Zhang Yue Yuan Long Jun Dai Jue Wang xue peng Zhou Fu Yun ji Jun Ming Tang Zhong ji Meng xu Zhi Ruan Hubei Key Laboratory of Embryonic Stem Cell Research Taihe HospitalHubei University of Medicine442000 ShiyanHubeiChina College of Basic Medicine Hubei University of Medicine442000 ShiyanHubeiChina jiangsu Hengrui Medicine Co.Ltd LianyungangChina Department of Neurosurgery Taihe HospitalHubei University of MedicineShiyanChina Department of Surgery University of British ColumbiaVancouverBCCanada Hepatobiliary and Pancreatic Surgery Diagnosis and Treatment Center Taihe HospitalHubei University of MedicineShiyanChina Institute of Biomedical Research Taihe HospitalHubei University of MedicineShiyanChina Department of Infectious Diseases Taihe HospitalHubei University of MedicineShiyanChina

Dear Editor,BARMR1(alternatively named FAM92A1 or FAM92A)gene was first identified in 2002 and is a highly conserved gene and widely expressed in most tissues in mammals.1 We first cloned the complete CDS sequence of BARMR1 in 2007,2 which encodes a protein with a Bin-Amphiphysin-Rvs(BAR)*** proteins are known to bind onto lipid membrane surface and generate membrane curvature and have been demonstrated to play diverse roles in cell growth,inflammation and cell migration.

关键词： inflammation property resistance

Nonresonant Optical Nonlinearities of Surface Chemically Modified ZnO Composite Nanoparticles

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Chinese Physics Letters 1998年第1期15卷 27-29页

作者： WANG Rong-yao WU Xiao-chun zou Bing-suo WANG Li WU peng-fei LIU Shao-mei WANG jin-guo xu ji-ren Optical Physics Laboratory Institute of PhysicsChinese Academy of SciencesBeijing 100080

With surface chemical modification,we have obtained core-shell structure ZnO *** nonresonant third-order nonlinear optical refraction of this new composite material was found to be-3.8×10^(-10) esu by Z-scan measurements with a femtosecond pulsed *** ultrafast nonlinear response time~250 fs measured by time-resolved pump-probe techniques suggests that the nonlinearity of this new material originates mainly from a rapid electronic polarization process or virtual process such as the optical Stark effect.

关键词： polarization pump Nonlinear

Study on neutronics design of ordered-pebble-bed fluoride-salt- cooled high-temperature experimental reactor

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Nuclear Science and Techniques 2018年第6期29卷 36-44页

作者： Rui Yan Shi-He Yu Yang zou Qun Yang Bo Zhou Pu Yang Hong-Hua peng Ya-Fen Liu Ye Dai Rui-Ming ji xu-Zhong Kang xing-Wei Chen Ming-Hai Li Xiao-Han Yu Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China University of Chinese Academy of Sciences Beijing 100049China

This paper presents a neutronics design of a 10 MW ordered-pebble-bed fluoride-salt-cooled high-temperature experimental reactor. Through delicate layout, a core with ordered arranged pebble bed can be formed,which can keep core stability and meet the space requirements for thermal hydraulics and neutronics ***, objectives of the core include inherent safety and sufficient excess reactivity providing 120 effective full power days for experiments. Considering the requirements above, the reactive control system is designed to consist of 16 control rods distributed in the graphite reflector. Combining the large control rods worth about 18000–20000 pcm, molten salt drain supplementary means(-6980 to -3651 pcm) and negative temperature coefficient(-6.32 to -3.80 pcm/K) feedback of the whole core, the reactor can realize sufficient shutdown margin and safety under steady state. Besides, some main physical properties, such as reactivity control, neutron spectrum and flux, power density distribution, and reactivity coefficient,have been calculated and analyzed in this study. In addition, some special problems in molten salt coolant are also considered, including ~6Li depletion and tritium production.

关键词：中子物理学反应堆试验性高温度学习设计脉冲编码调制控制系统

Variable phenotypes and outcomes associated with the MMACHC c.482G>A mutation:follow-up in a large CblC disease cohort

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World Journal of Pediatrics 2024年第8期20卷 848-858页

作者： Sheng-Nan Wu Hui-Shu E Yue Yu Shi-Ying Ling Li-Li Liang Wen-Juan Qiu Hui-Wen Zhang Rui-xue Shuai Hai-Yan Wei Chi-Ju Yang peng xu Xi-Gui Chen Hui zou ji-Zhen Feng Ting-Ting Niu Hai-Li Hu Kai-Chuang Zhang De-Yun Lu Zhu-Wen Gong Xia Zhan Wen-Jun ji xue-Fan Gu Yong-xing Chen Lian-Shu Han Department of Endocrinology and Metabolism Henan Key Laboratory of Children’s Genetics and Metabolic DiseasesChildren’s Hospital Affiliated to Zhengzhou UniversityHenan Children’s HospitalZhengzhou Children’s HospitalNo.255 Gangdu StreetZhengzhouChina Department of Pediatric Endocrinology and Genetics Fujian Children’s HospitalFuzhouChina The Center for Pediatric Liver Diseases Children’s HospitalFudan UniversityShanghaiChina Department of Pediatric Endocrinology/Genetics Shanghai Institute for Pediatric ResearchXinhua HospitalSchool of MedicineShanghai Jiao Tong UniversityNo.1665 Kongjiang RoadShanghaiChina Department of Pediatrics Second Affiliated Hospital of Naval Medical UniversityShanghaiChina Center of Neonatal Disease Screening Jining Maternal and Child Health Care HospitalJiningChina Center of Neonatal Disease Screening Jinan Maternal and Child Health Care HospitalJinanChina Center of Neonatal Disease Screening Shijiazhuang Maternal and Child Health Care HospitalShijiazhuangChina Center of Neonatal Disease Screening Shandong Maternal and Child Health Care HospitalJinanChina Center of Neonatal Disease Screening Hefei Maternal and Child Health Care HospitalHefeiChina

Background The aim of this study was to characterize the variable phenotypes and outcomes associated with the methylmalonic aciduria and homocystinuria type C protein gene(MMACHC)c.482G>A mutation in 195 Chinese cases with CblC *** We carried out a national,retrospective multicenter study of 195 Chinese patients with CblC disease attributable to the MMACHC c.482G>A variant either in a homozygous or compound heterozygous *** control group consisted of 200 patients diagnosed with CblC disease who did not possess the c.482G>A *** features,including disease onset,symptoms,biochemical metabolites,gene mutation,and follow-up outcomes were reviewed and analyzed in *** median follow-up period spanned 3 years and 8 months,with a range of 1 year and 2 months to 12 years and 10 *** Among 195 patients carrying the c.482G>A variant,125(64.1%)cases were diagnosed by newborn screening(NBS),60(30.8%)cases were detected due to disease onset,and 10(5.1%)cases were identified from sibling *** hundred and seventeen(93.6%)individuals who were diagnosed by NBS,and nine patients who came from sibling diagnoses remained asymptomatic in this *** 69 symptomatic patients of the c.482G>A group,more patients presented with later onset,and the top six common clinical symptoms at disease onset were developmental delay(59.4%),lower limb weakness and poor exercise tolerance(50.7%),cognitive decline(37.7%),gait instability and abnormal posture(36.2%),seizures(26.1%),and psychiatric and behavioral disturbances(24.6%).In the 159 symptomatic patients lacking c.482G>A variants,the most frequently observed clinical manifestations at disease onset included developmental delay(81.8%),lethargy and feeding difficulty(62.9%),lower limb weakness and poor exercise tolerance(54.7%),prolonged neonatal jaundice(51.6%),vomiting(47.2%),and seizures(32.7%).Before treatment,the levels of blood propionylcarnitine,propionylcarnitine/acetylcarnitine ratio

关键词： c.482G>A CblC disease MMACHC gene Newborn screening Outcome

The primary dolostone in the Meso-Neoproterozoic:Cases study on platforms in China

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Journal of Palaeogeography 2022年第2期11卷 151-172页

作者： Zhi-Dong Bao Han-cheng ji Yuan Wang Zong-Feng Li Ting Liang Bo Niu Ming-Yang Wei Kai Lu Yan-Qing Shi Hua Zhang Pu Wan Zhuo-Lun Li Zhi-Bo Yang Rui Liu Can-xing Liu xu-Lin Zhong Xiao-Qi guo peng-Fei Xiang Zhong-Xian Cai Shui-Chang Zhang China University of Petroleum(Beijing) Beijing 102249China State Key Laboratory of Petroleum Resources and Prospecting Ministry of EducationBeijing 102249China China University of Geosciences(Wuhan) Wuhan 430074China Petro China Research Institute of Petroleum Exploration and Development Beijing 100083China

Meso-Neoproterozoic dolostone is abnormally well-developed in the platform areas in China,detailly,in the Mesoproterozoic Calymmian Wumishan Formation of North China Basin,Neoproterozoic Ediacaran Qigbulak Formation of Tarim Basin,and the Neoproterozoic Ediacaran Dengying Formation of Sichuan *** outcrops and drilling cores from these basins show that these dolostones are mostly thick-bedded to massive,with mud-sized to silt-sized crystalline dolostone reaching 86%-97%of the total dolostone *** dolostones basically suffered no secondary metasomatism,regardless of containing microorganisms(such as algae and bacteria)or *** analyses of sedimentary palaeogeographic features indicate that:(1)the Meso-Neoproterozoic dolostone nearly covered the entire area basins,and was widely deposited in supratidal to intertidal zones,as well as in open platform environments;(2)the dolostone was subdivided according to the crystalline size,with the distribution controlled by geomorphology,i.e.,the pure mud-sized crystalline dolostone developing in depression areas,whereas the grainy mud-sized crystalline dolostone or the mound stromatolitic mud-sized crystalline dolostone developing in uplift areas;(3)deep-water basins developed between the carbonate platforms,and the seismic profiles show that these basins were formed by syngenetic deep faults in the Meso-Neoproterozoic *** syngenetic faults increased Mg^(2+)concentration in the seawater by injecting rich-Mg2+-bearing hydrothermal fluids into the carbonate *** analyses of geochemical and paleoclimatic indexes reveal that there is no obvious difference in carbon and oxygen isotope ratios between dolostones having different textures,with the ratios similar to those of the global seawater of the Meso-Neoproterozoic,indicating that the silt-sized crystalline dolostone has the same sedimentary origin as the mud-sized crystalline dolostone,i.e.,the former is from authigenic recrystallization of the

关键词： Thick-bedded to massive dolostone C-O isotopes Meso-Neoproterozoic Tarim basin Sichuan basin North China Basin

一种未知动态环境下异构无人机集群分布式联盟形成方法

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宇航学报 2022年第2期43卷 189-197页

作者：郑红星郭继峰谢旭东颜鹏哈尔滨工业大学航天学院哈尔滨150001

针对未知动态环境下异构无人机集群的分布式联盟形成问题,首先构建了异构无人机集群的联盟任务自动机,实现了异构无人机集群在未知动态环境下的自主任务协调。在此基础之上,提出了一种基于蒙特卡洛树搜索的分布式联盟形成算法,该算法通... 详细信息

针对未知动态环境下异构无人机集群的分布式联盟形成问题,首先构建了异构无人机集群的联盟任务自动机,实现了异构无人机集群在未知动态环境下的自主任务协调。在此基础之上,提出了一种基于蒙特卡洛树搜索的分布式联盟形成算法,该算法通过两阶段的蒙特卡洛树搜索来增量式地对联盟结构进行分布式优化,算法可在分布式框架下实施,并在任意时间内终止返回当前的最优解。最后,仿真实验表明,提出的算法可有效处理异构无人机集群在未知动态环境下的分布式联盟形成问题,并在较大规模的联盟形成问题中仍能保持较优的性能表现。

关键词：异构无人机集群分布式联盟形成蒙特卡洛树搜索分布式协同控制未知环境