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中国法医学杂志 2024年第1期39卷 95-100页

作者：黄美莎张恒李姝璇虢洪松济宁医学院山东济宁272067 济宁市第一人民医院CT室山东济宁272011

近年来,影像组学在临床应用中发展迅速,使用人工智能技术辅助诊断已成为趋势。本文通过三个方面进行综述,即介绍影像组学背景,分析影像组学研究的基本流程,展望在法医骨关节损伤鉴定中的应用。希望能够为影像组学应用到法医学鉴定实践... 详细信息

近年来,影像组学在临床应用中发展迅速,使用人工智能技术辅助诊断已成为趋势。本文通过三个方面进行综述,即介绍影像组学背景,分析影像组学研究的基本流程,展望在法医骨关节损伤鉴定中的应用。希望能够为影像组学应用到法医学鉴定实践中提供理论基础。

关键词：法医学损伤影像组学人工智能

MULTIPLE POSITIVE SOLUTIONS TO p-LAPLACIAN DYNAMIC EQUATION ON TIME SCALES

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Annals of Differential Equations 2008年第3期24卷 336-345页

作者： Wu Chufen1. Song Changxiu2, Weng Peixuan1.(1. School of Math., South China Normal University, Guangzhou 51.631.2. School of Applied Math., Guangdong University of Technology, Guangzhou 51.090)

In this paper, we study the boundary value problem for some p-Laplacian dynamic equations. By using Guo-Krasnosel’Skii Fixed Point Theorem and Avery-Henderson Fixed Point Theorem, conditions for the existence of posi... 详细信息

关键词： time scale p-Laplacian boundary value problem positive solution fixed point theorem

Ashkin-Teller Formalism for Elastic Response of DNA Molecule to External Force and Torque

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Communications in Theoretical Physics 2008年第2期49卷 525-528页

作者： CHANG Zhe~1.WANG Ping~(1.2) Zheng Ying-Hong~(1.2) 1.Institute of High Energy Physics,the Chinese Academy of Sciences,P.O.Box 91.(4),Beijing 1.0049,China 2 Graduate School,the Chinese Academy of Sciences,Beijing 1.0049,China Institute of High Energy Physics the Chinese Academy of Sciences P.O. Box 918(4) Beijing 100049 China Graduate School the Chinese Academy of Sciences Beijing 100049 China

We propose an Ashkin Teller-like model for elastic response of DNA molecule to external force and *** base-stacking interaction is described in a simple and uniform *** obtain the phase diagram of dsDNA,andin particular,the transition from B form to the S state induced by stretching and *** elastic response of thessDNA is presented also in a unified *** close relation of dsDNA molecule structure with elastic response isshown *** calculated folding angle of the dsDNA molecule is 59.2°.

关键词： dsDNA elastic property

鳞状细胞癌抗原联合癌胚抗原及糖类抗原-1.5检测对早期宫颈癌的诊断效能分析

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医师在线 2024年第6期14卷 24-27页

作者：许少花陈立奖卓可秀苍南县第三人民医院检验科浙江苍南325804 龙港市人民医院检验科浙江温州325802

目的探讨鳞状细胞癌抗原(SCC-Ag)、癌胚抗原(CEA)及糖类抗原-1.5(CA1.5)联合检测对早期宫颈癌的诊断效能。方法选取2023年1.~2023年1.月我院妇科收治的宫颈上皮内瘤变(CIN)患者30例设为A组,宫颈癌患者60例(鳞腺癌1.例,鳞癌35例,腺癌1.... 详细信息

目的探讨鳞状细胞癌抗原(SCC-Ag)、癌胚抗原(CEA)及糖类抗原-1.5(CA1.5)联合检测对早期宫颈癌的诊断效能。方法选取2023年1.~2023年1.月我院妇科收治的宫颈上皮内瘤变(CIN)患者30例设为A组,宫颈癌患者60例(鳞腺癌1.例,鳞癌35例,腺癌1.例)设为B组,另选取同期健康体检者30例设为对照组。抽取所有受检者空腹静脉血,经化学发光法检测三组的SCC-Ag、CEA、CA1.5水平。分别对三组以及B组三种病理类型宫颈癌患者的血清SCC-Ag、CEA、CA1.5水平进行对比,并统计SCC-Ag、CEA、CA1.5单独检测及联合检测的诊断效能。结果B组的血清SCC-Ag、CEA、CA1.5水平均高于A组和对照组(P1.5水平均高于对照组(P1.5、CEA水平均高于鳞腺癌和鳞癌(P0.05)。结论血清SCC-Ag、CEA、CA1.5均对宫颈癌的诊断和预测具有一定的价值,且三种指标联合检测的灵敏度和准确度更高,可为宫颈癌的组织分期提供有利的依据,有利于后期开展治疗。

关键词：早期宫颈癌鳞状细胞癌抗原癌胚抗原糖类抗原-1.5 病理诊断

Numerical simulation of hydrodynamic and water quality effects of shoreline changes in Bohai Bay

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Frontiers of Earth Science 2018年第3期12卷 625-639页

作者： Han JIA 1.ongming SHEN Meirong SU Chunxue YU State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China School of Environment and Civil Engineering Dongguan University of Technology Dongguan 523808 China

This study uses the HD and Ecolab modules of MIKE to simulate the hydrodynamic and water quality and predict the influence of shoreline changes in Bohai Bay, China. The study shows that shoreline changes weaken the residual current and generate a counter-clockwise circulation south of Huanghua Port, thereby resulting in weak water exchange capacity and low pollutant-diffusing capacity. Shoreline changes reduce the area of Bohai Bay, resulting in a smaller tidal prism and further weakening the water exchange capacity. This situation is not conducive to the diffusion of pollutants, and therefore may lead to increased water pollution in the bay. Shoreline changes hinder the spread of runoff, weaken the dilution effect of the river on seawater, and block the spread of coastal residual Current, thereby resulting in increased salinity near the reclamation area. Shoreline changes lead to an increase in PO4-P concentration and decrease in DIN concentration. The value of N/P near the project decreases, thereby weakening the phosphorus-limited effect.

关键词： Bohai Bay shoreline changes hydrodynamic water quality

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短切纤维炭炭复合材料磁电阻特性研究

新型炭材料 2004年第3期19卷 219-223页

作者：邓海金李明孙立李东生清华大学材料科学与工程系北京100084 北京百慕航材高科技股份有限公司北京100095

　研究了经不同温度下热处理后短切纤维模压预制体炭炭复合材料样品的磁电阻特性。研究结果表明C C复合材料的磁电阻-位向关系曲线的形状与C C预制体结构有关,不同预制体结构的材料,磁电阻-位向关系曲线形状不同。C C复合材料出现磁电... 详细信息

　研究了经不同温度下热处理后短切纤维模压预制体炭炭复合材料样品的磁电阻特性。研究结果表明C C复合材料的磁电阻-位向关系曲线的形状与C C预制体结构有关,不同预制体结构的材料,磁电阻-位向关系曲线形状不同。C C复合材料出现磁电阻恒为0的起始温度与材料的石墨化特性有很大关系。石墨化程度越高,材料的磁电阻越大,磁电阻达到0时的测量温度越高。研究发现,磁电阻-测量温度曲线回归方程的斜率随热处理温度的增加而降低,且斜率-热处理温度的变化曲线与材料d002随热处理温度的变化曲线形状类似。

关键词：磁电阻特性预制体炭/炭复合材料 C/C复合材料石墨化程度纤维模压类似斜率热处理温度

神经内镜下手术治疗儿童小脑肿瘤30例临床分析

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中华实用儿科临床杂志 2024年第8期39卷 589-591页

作者：刘昉张晓华王俊陈卓安妮妮谭赢曾宇刘建刘军傅俊武戴珂王超上海儿童医学中心贵州医院神经外科贵阳550002 上海交通大学医学院附属仁济医院神经外科上海200120 贵州省人民医院神经外科贵阳550002 贵州大学附属医院神经外科贵阳550002 遵义医科大学附属医院神经外科遵义563000

目的探讨神经内镜在小脑肿瘤切除中的应用价值及手术经验。方法病例系列研究。回顾性分析2021.1.至2024年1.上海儿童医学中心贵州医院、贵州省人民医院神经外科同一治疗组采用神经内镜下治疗的小脑肿瘤患儿临床资料,共30例,分析其临... 详细信息

目的探讨神经内镜在小脑肿瘤切除中的应用价值及手术经验。方法病例系列研究。回顾性分析2021.1.至2024年1.上海儿童医学中心贵州医院、贵州省人民医院神经外科同一治疗组采用神经内镜下治疗的小脑肿瘤患儿临床资料,共30例,分析其临床资料及疗效。结果全切除26例,次全切除3例,活检1.。术后病理检查结果:髓母细胞瘤9例,室管膜瘤3例,星型胶质细胞瘤1.例(世界卫生组织Ⅰ5例、Ⅱ3例、Ⅲ9例);活检病例为小脑良性病变。并发症:围术期发生恶性心律失常死亡1.,小脑性缄默1.例,共济失调22例;术后随访1.36个月,出现交通性脑积水2例,分别在术后2、6个月行脑室腹腔分流术后脑积水改善;术后(1.5±23)d(46~1.4 d)小脑性缄默均有不同程度的改善,共济失调术后(1.7±42)d(27~1.3 d)好转;末次随访:肿瘤复发5例。结论熟练操作者术中使用神经内镜在小脑蚓部肿瘤的外科切除中能达到显露要求,提供了显微镜外的另一个选择。

关键词：儿童小脑肿瘤神经内镜

Two New Indole Alkaloids from Evodia rutaecarpa

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Chinese Chemical Letters 2000年第2期11卷 127-128页

作者： Guo Ying ZUO1.2 Xiao Sheng YANG 1.Xiao Jiang HAO1.(1.Laboratory of Phytochemistry. Kunming Institute of Botany, the Chinese Academy of Sciences. Kunming 650204 2Kunming 43 Hospital. PLA, Kunming 650032) Laboratory of Phytochemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China Kunming 43 Hospital PLA Kunming 650032 China

Two new indole alkaloids. wuchuyuamide I and II were isolated from the fruits of Evodia rutaecarpa (Juss.) Benth and their structures were elucidated on the basis of spectral data.

关键词： Rutaceae Evodia rutaecarpa (Juss.)Benth indolinone alkaloids wuchuyuamides

An auto-focus algorithm for imaging of objects under a lossy earth from multi-frequency and multi-monostatic data

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Science China(Information Sciences) 2010年第9期53卷 1880-1890页

作者： LIU YanLi1.2,LI LianLin1.& LI Fang1. 1.nstitute of Electronics,Chinese Academy of Sciences,Beijing 1.01.0,China 2National Science Library,Chinese Academy of Sciences,Beijing 1.0049,China Institute of Electronics Chinese Academy of Sciences Beijing China National Science Library Chinese Academy of Sciences Beijing China

The problem of auto-focusing imaging of 2D dielectric objects imbedded in a lossy earth is *** Born approximation,the half-space spectrum Green's function is employed to formulate the half-space imaging algorithm from multi-frequency and multi-monostatic *** the fast Fourier transform can be used to achieve real-time imaging in a very short computing *** the proposed algorithm has avoided the time-consuming regularization of a large-scale ill-posed matrix,the computing time can be greatly cut *** by the principle of time reversed imaging and the minimum entropy criterion,an auto-focusing imaging algorithm is presented to remove the image degradation caused by estimated error of the unknown dielectric parameters of the *** results have shown that the proposed algorithm can provide good quality focused images for both low-contrast and high-contrast targets in a short computing time despite the inaccurate estimation of the earth electric *** proposed algorithm can be extended to three-dimensional case naturally.

关键词： multi-frequency multi-monostatic minimum entropy auto-focusing lossy earth time reversal imaging(TRI)

Model test on sand retaining wall reinforced with denti-strip inclusions

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Science China(Technological Sciences) 2008年第12期51卷 2259-2269页

作者： ZHANG MengXi1.& ZHOU Huai1.2 1.Department of Civil Engineering,Shanghai University,Shanghai 200072,China 2 Shanghai Chengtou City Land(Group) Corporation,Shanghai 200438,China Department of Civil Engineering Shanghai University Shanghai China Shanghai Chengtou City Land (Group) Corporation Shanghai China

In conventional reinforced soil structures,the reinforcements are often laid hori-zontally in the *** this paper,a new concept of soil reinforced with denti-strip inclusions was proposed and a series of laboratory model tests were carried out on sand retaining wall reinforced with denti-strip *** the horizontal displacements of the facing,the lateral earth pressures acting on vertical elements were measured.A microscopic measurement was performed to investigate the deformation and progressive failure of the sand within model retaining *** on the image analytical technique,the bearing capability and interaction mechanism of reinforced sand retaining wall were *** model of the initial shear failure and potential failure surface were also put *** the experimental results,it is shown that denti-strip inclusions can increase the bearing capability of retaining wall significantly and restrict the facing displacements efficiently,as compared with conventional horizontal reinforcement.

关键词： denti-strip inclusions reinforced sand retaining wall model test horizontal facing displacements lateral earth pressure on denti-elements failure surface