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顾及权重信息的地图点群目标自动综合方法

测绘学报 2024年第2期53卷 398-398页

作者：禄小敏兰州交通大学测绘与地理信息学院甘肃兰州730070 地理国情监测技术应用国家地方联合工程研究中心甘肃兰州730070

在小比例尺地图上,许多地物呈点群状分布。当地图比例尺进一步缩小时,点状符号之间会出现相互堆叠、覆盖等情形。为了保持地图的清晰度、层次特征与美观性,需要对点群进行综合,即从原始点群中抽取出一定数量相对重要的点而删除相对次要... 详细信息

在小比例尺地图上,许多地物呈点群状分布。当地图比例尺进一步缩小时,点状符号之间会出现相互堆叠、覆盖等情形。为了保持地图的清晰度、层次特征与美观性,需要对点群进行综合,即从原始点群中抽取出一定数量相对重要的点而删除相对次要点。点的权重反映了单个点在点群整体中的重要性程度,在点群综合算法设计中非常关键。按照点群综合过程中对权重信息的顾及情况,可以将已有的点群综合算法分为两大类:第1类算法在点群综合过程中没有顾及其权重信息,第2类算法在综合过程中虽然顾及到了权重信息,但仍然存在点群权重设定比较主观、综合结果缺乏现势参考价值,以及没有顾及道路网在点群综合中的制约与影响作用等问题。

关键词：地图比例尺小比例尺点群综合点状符号自动综合权重信息点群目标算法设计

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Micro femoral head prosthesis in applications to collapsed femoral head necrosis in the weight-bearing dome(ARCO III):A case series with short-term follow-up

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Chinese Medical Journal 2024年第6期137卷 737-739页

作者： Zhongzheng Wang Yuchuan Wang Tianyu Wang Yining lu Xiaodong Lian Yanbin Zhu Wei Chen Zhiyong Hou Yingze Zhang Department of Orthopaedic Surgery Hebei Medical University Third HospitalShijiazhuangHebei 050051China Key Laboratory of Biomechanics of Hebei Province ShijiazhuangHebei 050051China NHC Key Laboratory of Intelligent Orthopaedic Equipment ShijiazhuangHebei 050051China Chinese Academy of Engineering Beijing 100088China

Osteonecrosis of the femoral head(ONFH)is mainly caused by a decrease in the vascular supply to the subchondral bone of the femoral head,leading to the death of bone cells,degeneration and necrosis of the subchondral bone,and eventually collapse of the femoral head.^([1])Early and accurate diagnosis is the key to successful hip-preserving therapy,and the size/location of necrosis is the main determinant for ONFH *** studies have shown that many hip-preserving therapies achieved satisfactory results in ONFH patients with Association Research Circulation Osseous(ARCO)I–*** ONFH progresses to ARCO IV with clinical manifestations of osteoarthrosis,total hip arthroplasty(THA)may be the only option.

关键词： ARCO diagnosis death head

Self-consistent and precise measurement of time-dependent radiative albedo of gold based on specially symmetrical triple-cavity Hohlraum

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Matter and Radiation at Extremes 2024年第3期9卷 57-64页

作者： Zhiyu Zhang Yang Zhao Xiaoying Han Liling Li Bo Qing Lifei Hou Yulong Li YuXue Zhang Huan Zhang Xiangming Liu Bo Deng Gang Xiong Min Lv Tuo Zhu Chengwu Huang Tianming Song Yan Zhao Yingjie Li lu Zhang Xufei Xie Jiyan Zhang Jiamin Yang Laser Fusion Research Center China Academy of Engineering PhysicsMianyang 621900China National Key Laboratory of Plasma Physcis Mianyang 621900China Institute of Applied Physics and Computational Mathematics Beijing 100088China

A self-consistent and precise method to determine the time-dependent radiative albedo,i.e.,the ratio of the reemission flux to the incident flux,for an indirect-drive inertial confinement fusion Hohlraum wall material is proposed.A specially designed symmetrical triple-cavity gold Hohlraum is used to create approximately constant and near-equilibrium uniform radiation with a peak temperature of 160 *** incident flux at the secondary cavity waist is obtained from flux balance analysis and from the shock velocity of a standard *** results agree well owing to the symmetrical radiation in the secondary cavity.A self-consistent and precise time-dependent radiative albedo is deduced from the reliable reemission flux and the incident flux,and the result from the shock velocity is found to have a smaller uncertainty than that from the multi-angle flux balance analysis,and also to agree well with the result of a simulation using the HYADES opacity.

关键词： precise cavity radiative

牛膝枯萎病病原鉴定、生物学特性及防治药剂筛选

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植物病理学报 2024年第1期54卷 49-58页

作者：王飞杨瑾李雪梦赵莹刘玉霞秦艳红高素霞文艺鲁传涛河南省农业科学院植物保护研究所郑州450002 河南农业大学植物保护学院郑州450002

以河南省焦作市牛膝枯萎病样品为试材,采用组织分离培养法对其病原进行分离纯化,利用蘸根接种法对分离物的致病性进行测定。通过形态学、ITS序列和多基因(EF1-α、Tub、RPB2和PRO1/2等)序列分析方法完成了牛膝枯萎病病原菌鉴定,并对病... 详细信息

以河南省焦作市牛膝枯萎病样品为试材,采用组织分离培养法对其病原进行分离纯化,利用蘸根接种法对分离物的致病性进行测定。通过形态学、ITS序列和多基因(EF1-α、Tub、RPB2和PRO1/2等)序列分析方法完成了牛膝枯萎病病原菌鉴定,并对病原菌的生物学特性进行了研究。结果表明,牛膝枯萎病的病原菌为层出镰刀菌(Fusarium proliferatum)。该病菌可在多种培养基上生长,在燕麦琼脂培养基上生长最快;最适生长温度为28℃,最适pH值为7.0,在全黑暗培养条件下生长速率最高;可利用多种碳、氮源,其中以蔗糖为碳源和蛋白胨为氮源的培养条件最利于菌丝的生长。毒力测定结果表明,选用的6种杀菌剂中戊唑醇和咯菌腈的抑菌效果最好,EC50值分别为3.03和2.36 mg·L^(-1)。本研究是***引起牛膝枯萎病的首次报道,研究结果可为牛膝枯萎病病害的田间诊断和科学防治提供依据。

关键词：牛膝枯萎病层出镰刀菌病原鉴定药剂筛选

Mixed 2D-Dion–Jacobson/3D Sn-Pb alloyed perovskites for efficient photovoltaic solar devices

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Nano Research 2023年第2期16卷 3142-3148页

作者： Zhili lu Chaohui Li Hongwei Lai Xinming Zhou Chunfeng Wang Xianhu Liu fei Guo Caofeng Pan National Engineering Research Center for Advanced Polymer Processing Technology Key Laboratory of Advanced Material Processing&Mold(Ministry of Education)Zhengzhou UniversityZhengzhou 450002China Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesNational Center for Nanoscience and Technology(NCNST)Beijing 100083China Institute of Materials for Electronics and Energy Technology(i-MEET) Friedrich-Alexander University Erlangen-NürnbergMartensstrasse 7Erlangen 91058Germany

Tin-lead(Sn-Pb)alloyed perovskites with tunable bandgaps hold great potential for constructing highly efficient single-junction and tandem photovoltaic ***,the efficiency and stability of Sn-Pb perovskite solar cells(PSCs)are greatly hampered by severe nonradiative recombination due to the easy oxidation of Sn(II).In this work,we report the construction of mixed dimensional two-dimensional(2D)Dion–Jacobson(DJ)and three-dimensional(3D)perovskites to improve the efficiency and stability of Sn-Pb alloyed *** a small amount of 1,4-butanediammonium diiodide as spacer cations of DJ perovskites into precursor,the prepared mixed dimensional Sn-Pb alloyed perovskites exhibit reduced trap-state density due to the passivation of 2D DJ *** a result,nonradiative charge recombination is greatly *** prepared Sn-Pb alloyed PSCs based on 2D-DJ/3D heterojunction deliver a power conversion efficiency of 19.02%with an impressive fill factor of 80%.As well,improved device stability is realized due to the presence of DJ perovskites which serves as a protection barrier against oxidation and water invasion.

关键词： Sn-Pb perovskite narrow bandgap Dion–Jacobson perovskite solar cells two-dimensional(2D)/three-dimensional(3D)

Early surgical intervention in culture-negative endocarditis of the aortic valve complicated by abscess in an infant:A case report

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World Journal of Clinical Cases 2021年第35期9卷 11016-11023页

作者： Yan-Feng Yang fei-fei Si Ting-Ting Chen Ling-Xia Fan Ya-Heng lu Mei Jin Department of Pediatric Cardiology Chengdu Women’s and Children’s Central HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengdu 610000Sichuan ProvinceChina

BACKGROUND Surgical therapy of infective endocarditis(IE)involving aortic valves and mitral valves is ***,there are few reports concerning patients with culture-negative endocarditis complicated by the appearance of comorbid valvular perforation and ***,real-time surveillance of changes in cardiac structure and function is critical for timely surgical management,especially in patients who do not respond to medical *** SUMMARY Here,we report an atypical case in a 9-mo-old infant without congenital heart disease but with symptoms of intermittent fever and macular *** examination,laboratory tests,and electrocardiograms suggested a diagnosis of IE,although the result of blood cultures was exactly *** treatment with antibiotic drugs,the patient got a transient *** the 9th day,we proceeded with continuous echocardiogram due to fever again and the results revealed aortic valve abscess with perforation,regurgitation,vegetation,and pericardial *** monitoring revealed aortic valve perforation,presence of apothegmatic cystic spaces below the left coronary cusp of the aortic valve,and severe aortic valve *** valve repair was performed by autologous pericardial patch *** patient was discharged after 4 wk of treatment and no complications occurred after *** Our case demonstrated the necessity of serial echocardiography monitoring for possible adverse symptoms of IE in pediatric patients.

关键词： Infective endocarditis Aortic regurgitation Abscess Blood culture-negative Echocardiography Case report

肿瘤相关中性粒细胞的异质性及潜在的临床意义

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中国肿瘤生物治疗杂志 2024年第4期31卷 319-325页

作者：张铎路丽明复旦大学附属眼耳鼻喉科医院耳鼻喉科上海200031 上海交通大学医学院上海市免疫研究所上海200025

恶性肿瘤组织中肿瘤相关中性粒细胞(TAN)是肿瘤微环境的重要组成部分。TAN在肿瘤中的作用具有两面性。一方面,TAN可直接杀伤肿瘤细胞,或介导其他免疫细胞协同抗肿瘤。另一方面,TAN也可促进肿瘤血管生成、重塑细胞外基质及参与肿瘤细胞... 详细信息

恶性肿瘤组织中肿瘤相关中性粒细胞(TAN)是肿瘤微环境的重要组成部分。TAN在肿瘤中的作用具有两面性。一方面,TAN可直接杀伤肿瘤细胞,或介导其他免疫细胞协同抗肿瘤。另一方面,TAN也可促进肿瘤血管生成、重塑细胞外基质及参与肿瘤细胞免疫逃逸。以上TAN功能的异质性是其在肿瘤微环境中多种复杂机制的交互调控下形成的,对肿瘤的发展或抑制产生重要的作用。因此,阐明TAN的异质性、不同亚群转化机制及其潜在的临床意义显得尤为重要,不仅有助于开发针对促肿瘤型中性粒细胞亚群的抑制类药物和疗法,还可进一步促进免疫治疗更多获益人群的新评估标准建立和筛选。

关键词：肿瘤肿瘤相关中性粒细胞中性粒细胞异质性免疫治疗免疫抑制

A thermo-mechanical damage constitutive model for deep rock considering brittleness-ductility transition characteristics

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Journal of Central South University 2024年第7期31卷 2379-2392页

作者： FENG Chen-chen WANG Zhi-liang WANG Jian-guo lu Zhi-tang LI Song-yu School of Civil and Hydraulic Engineering Hefei University of TechnologyHefei 230009China School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhou 221116China School of Resources and Environmental Engineering Hefei University of TechnologyHefei 230009China

This paper developed a statistical damage constitutive model for deep rock by considering the effects of external load and thermal treatment temperature based on the distortion *** model parameters were determined through the extremum features of stress−strain ***,the model predictions were compared with experimental results of marble *** is found that when the treatment temperature rises,the coupling damage evolution curve shows an S-shape and the slope of ascending branch gradually decreases during the coupling damage evolution *** a constant temperature,confining pressure can suppress the expansion of *** the confining pressure increases the rock exhibits ductility characteristics,and the shape of coupling damage curve changes from an S-shape into a quasi-parabolic *** model can well characterize the influence of high temperature on the mechanical properties of deep rock and its brittleness-ductility transition characteristics under confining ***,it is suitable for sandstone and granite,especially in predicting the pre-peak stage and peak stress of stress−strain curve under the coupling action of confining pressure and high *** relevant results can provide a reference for further research on the constitutive relationship of rock-like materials and their engineering applications.

关键词： deep rock crack initiation threshold thermo-mechanical coupling statistical damage model distortion energy theory

Hole-pinned defect-dipoles induced colossal permittivity in Bi doped SrTiO3 ceramics with Sr deficiency

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Journal of Materials Science & Technology 2020年第9期44卷 54-61页

作者： Yulong Qiao Weili Li Yulei Zhang lu Jing Chang Gao Wenping Cao Dan Xu Weidong fei School of Materials Science and Engineering Harbin Institute of TechnologyHarbin150001China National Key Laboratory of Science and Technology on Precision Heat Processing of Metals Harbin Institute of TechnologyHarbin150001China School of Light Industry Harbin University of CommerceHarbin150028China Key Laboratory of Quantum Manipulation&Control of Heilongjiang Province Harbin University of Science and TechnologyHarbin150080China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin150001China

Bi doped SrTiO3 ceramics with Sr deficiency,***1-1.5xBixTiO3(x=0,0.01,0.05,0.1),were prepared via conventional solid-state reaction route.A colossal permittivity(CP)over 104 with low dielectric loss less than 0.05wasobtained in x=0.05 Sr1-1.5xBixTiO3 *** addition,the dielectric constant is maintained at a value greater than 104 in the range of 102-105 Hz and almost frequency *** structure analysis and density functional theory calculations suggest that the Bi·Sr-V"Sr-Bi·Sr defect complex with hole-pinned defect-dipoles maybe responsible for the high-performance CP *** work gives a new way to achieve high performance CP materials in ABO3 perovskite ceramics.

关键词： Bi doped SrTiO3 Sr deficiency Colossal permittivity Low dielectric loss