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航管二次雷达S模式技术介绍

电子技术（上海） 2011年第10期38卷 43-44,39页

作者：许蔚乐唐棣芳上海交通大学电子信息与电气工程学院

文章主要介绍了新一代的二次雷达技术--S模式,在简要说明S模式国内外发展现状的同时,对S模式的功能进行了深入的阐述。

关键词： S模式 S模式功能基本监视增强监视

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预输血患者直接抗人球蛋白试验结果分析

医学动物防制 2024年第2期40卷 206-208,F0003页

作者：王红于惠敏徐伟乐吴小静吕翠环吕莎河北省胸科医院输血科河北石家庄050041 河北省胸科医院普通外科河北省胸科医院呼吸与重症医学一科

目的探讨直接抗人球蛋白试验(direct antiglobulin test, DAT)阳性在预输血患者中的分布情况。方法回顾性分析2020年6月-2021年7月河北省某医院住院的1 587例预输血患者的DAT结果,运用SPSS 19.0软件统计分析患者的年龄、性别、科室、... 详细信息

目的探讨直接抗人球蛋白试验(direct antiglobulin test, DAT)阳性在预输血患者中的分布情况。方法回顾性分析2020年6月-2021年7月河北省某医院住院的1 587例预输血患者的DAT结果,运用SPSS 19.0软件统计分析患者的年龄、性别、科室、ABO血型与DAT阳性的关系。结果预输血患者的DAT阳性率为13.23%(210/1 587),随年龄增大,患者的DAT阳性率呈上升趋势,50~70岁年龄组患者的DAT阳性率最高(χ^(2)=7.496,P=0.006);女性患者的DAT阳性率高于男性患者(P’_男=13.305,P’_女=20.460);不同科室间患者的DAT阳性率差异有统计学意义(χ^(2)=242.931,P<0.001),重症监护室、其他内科、肾内科、消化内科和呼吸科最高(χ^(2)=14.170,P<0.001),急诊科、肿瘤内科和泌尿外科次之(χ^(2)=18.812,P<0.001)。不同ABO血型患者的DAT阳性率差异有统计学意义(χ^(2)=7.981,P=0.046),B型血患者的DAT阳性率最低(χ^(2)=5.472,P=0.020)。结论 DAT阳性率与预输血患者的年龄、性别、科室和ABO血型均存在相关性。

关键词：直接抗人球蛋白试验年龄性别科室 ABO血型

Spatial Distribution of Large-scale Landslides Induced by the 5.12 Wenchuan Earthquake

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Journal of Mountain Science 2011年第2期8卷 246-260页

作者： xu Qiang ZHANG Shuai LI weile State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu 610059 China

The 5.12 Wenchuan Earthquake in 2008 induced hundreds of large-scale landslides. This paper systematically analyzes 112 large-scale landslides (surface area > 50000 m2), which were identified by interpretation of remote sensing imagery and field investigations. The analysis suggests that the distribution of large-scale landslides is affected by the following four factors: (a) distance effect: 80% of studied large-scale landslides are located within a distance of 5 km from the seismic faults. The farther the distance to the faults, the lower the number of large-scale landslides; (b) locked segment effect: the large-scale landslides are mainly located in five concentration zones closely related with the crossing, staggering and transfer sections between one seismic fault section and the next one, as well as the end of the NE fault section. The zone with the highest concentration was the Hongbai-Chaping segment, where a great number of large-scale landslides including the two largest landslides were located. The second highest concentration of large-scale landslides was observed in the Nanba-Donghekou segment at the end of NE fault, where the Donghekou landslide and the Woqian landslide occurred; (c) Hanging wall effect: about 70% of the large-scale landslides occurred on the hanging wall of the seismic faults; and (d) direction effect: in valleys perpendicular to the seismic faults, the density of large-scale landslides on the slopes facing the seismic wave is obviously higher than that on the slopes dipping in the same direction as the direction of propagation of the seismic wave. Meanwhile, it is found that the sliding and moving directions of large-scale landslides are related to the staggering direction of the faults in each section. In Qingchuan County where the main fault activity was horizontal twisting and staggering, a considerable number of landslides showed the feature of sliding and moving in NE direction which coincides with the staggering direction of th

关键词： 5.12 Wenchuan Earthquake Landslides Distribution pattern Direction effect Locked segment effect

CCR2和CCR5基因多态性与结核性脓胸的关系

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疑难病杂志 2015年第2期14卷 141-144页

作者：徐伟乐李辉秦学博侯宏伟齐海亮河北省胸科医院微创外科石家庄050041

目的探讨CCR2基因-190 G/A和CCR5基因-59029 G/A单核苷酸多态性(SNP)与结核性脓胸的关系。方法采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法对结核性脓胸患者300例和健康对照组300例进行CCR2基因-190 G/A和CCR5基因-59029 G/A ... 详细信息

目的探讨CCR2基因-190 G/A和CCR5基因-59029 G/A单核苷酸多态性(SNP)与结核性脓胸的关系。方法采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法对结核性脓胸患者300例和健康对照组300例进行CCR2基因-190 G/A和CCR5基因-59029 G/A SNPs检测。结果与CCR2基因-190 GG基因型相比,携带AG和AA基因型均可增加结核性脓胸发病风险(OR=2.254,95%CI 1.043~4.868;OR=8.728,95%CI 4.224~18.033)。进行分层分析发现,无卡介苗(BCG)接种史、体质量指数(BMI)0.05)。结论CCR2基因-190 G/A SNP可能与结核性脓胸的发病风险有关;CCR5基因-59029 G/A SNP可能与结核性脓胸无关。

关键词：结核性脓胸 CCR2基因 CCR5基因单核苷酸多态性

Active Landslide Detection Based on Sentinel-1 Data and InSAR Technology in Zhouqu County, Gansu Province, Northwest China

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Journal of Earth Science 2021年第5期32卷 1092-1103页

作者： Cong Dai weile Li Dong Wang Huiyan Lu Qiang xu Ji Jian State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China College of Earth Sciences Chengdu University of TechnologyChengdu 610059China China Railway Eryuan Engineering Group Co.Ltd. Chengdu 610031China

Zhouqu County in Gansu Province, Northwest China, is typically highly prone to landslides. On July 12, 2018, a landslide blocked the Bailong River near Zhouqu County, posing a serious threat to the life and property of local residents and the safety of infrastructure. Small baseline subset interferometry synthetic aperture radar technology(SBAS-In SAR) was adopted to identify the potential active landslides in the surrounding area of Zhouqu County, using ascending and descending orbit Sentinel-1 satellite images taken from October 2017 to December 2018. The surface deformation areas detected by SBAS-In SAR were verified by optical remote sensing image interpretation and field investigation, and a total of 23 active landslides were identified finally. The deformation characteristics of four typical landslides are analysed in detail using deformation velocity and rainfall data. It is found that the deformation velocity of landslides in this area is mainly affected by rainfall and there is a lag effect. The results can provide a reference for the prevention and control of landslide risk in Zhouqu County.

关键词： Zhouqu County landslide detection small baseline subset interferometry

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环境保护过程中公众参与的目标价值及其相关体系的构建与完善

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中国资源综合利用 2019年第2期37卷 139-141页

作者：宋军仪许薇乐宋鹏飞董凌云董至诚上海立信会计金融学院上海201620

中国现今已经进入了环境事件的高发阶段。虽然部分事件产生的根源在于生产事故,但是相关部门处理事件的方法不恰当也会引发大规模的群体性事件。因此,当前有必要反思环境保护中公众参与存在的问题,找到合理的解决途径。

关键词：环境保护公众参与环境治理体系的构建与完善

A Comparative Study of Supervised Classification Methods for Investigating Landslide Evolution in the Mianyuan River Basin,China

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Journal of Earth Science 2023年第2期34卷 316-329页

作者： Yujie Long weile Li Runqiu Huang Qiang xu Bin Yu Gang Liu State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China Sichuan Metallurgical Geological Survey and Design Group Co. LtdChengdu 610081China College of Earth Sciences Chengdu University of TechnologyChengdu 610059China

The Ms8.0 Wenchuan earthquake of 2008 dramatically changed the terrain surface and caused long-term increases in the scale and frequency of landslides and debris *** changing trend of landslides in the earthquake-affected area over the decade since the earthquake remains largely *** this study,we were able to address this issue using supervised classification methods and multitemporal remote sensing images to study landslide evolution in the worst-affected area(Mianyuan River Basin)over a period of ten *** images were processed using the maximum likelihood method and random forest algorithm to automatically map landslide occurrence from 2007 to *** principal findings are as follows:(1)when compared with visual image analysis,the random forest algorithm had a good average accuracy rate of 87%for landslide identification;(2)postevent landslide occurrence has generally decreased with time,but heavy monsoonal seasons have caused temporary spikes in activity;and(3)the postearthquake landslide activity in the Mianyuan River Basin can be divided into a strong activity period(2008 to 2011),medium activity period(2012 to 2016),and weak activity period(post 2017).Landslide activity remains above the prequake level,with damaging events being rare but continuing to ***-term remote sensing and on-site monitoring are required to understand the evolution of landslide activity after strong earthquakes.

关键词： Wenchuan earthquake Mianyuan River Basin automatic detection evolutionary trend maximum likelihood method random forest algorithm engineering geology

Geohazard Recognition and Inventory Mapping Using Airborne LiDAR Data in Complex Mountainous Areas

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Journal of Earth Science 2021年第5期32卷 1079-1091页

作者： Chen Guo Qiang xu Xiujun Dong weile Li Kuanyao Zhao Huiyan Lu Yuanzhen Ju State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China

Geohazard recognition and inventory mapping are absolutely the keys to the establishment of reliable susceptibility and hazard maps. However, it has been challenging to implement geohazards recognition and inventory mapping in mountainous areas with complex topography and vegetation cover. Progress in the light detection and ranging(Li DAR) technology provides a new possibility for geohazard recognition in such areas. Specifically, this study aims to evaluate the performances of the Li DAR technology in recognizing geohazard in the mountainous areas of Southwest China through visually analyzing airborne Li DAR DEM derivatives. Quasi-3 D relief image maps are generated based on the sky-view factor(SVF), which makes it feasible to interpret precisely the features of geohazard. A total of 146 geohazards are remotely mapped in the entire 135 km^(2) study area in Danba County, Southwest China, and classified as landslide, rock fall, debris flow based on morphologic characteristics interpreted from SVF visualization maps. Field validation indicate the success rate of Li DAR-derived DEM in recognition and mapping geohazard with higher precision and accuracy. These mapped geohazards lie along both sides of the river, and their spatial distributions are related highly to human engineering activities, such as road excavation and slope cutting. The minimum geohazard that can be recognized in the 0.5 m resolution DEM is about 900 m^(2). Meanwhile, the SVF visualization method is demonstrated to be a great alternative to the classical hillshaded DEM method when it comes to the determination of geomorphological properties of geohazard. Results of this study highlight the importance of Li DAR data for creating complete and accurate geohazard inventories, which can then be used for the production of reliable susceptibility and hazard maps and thus contribute to a better understanding of the movement processes and reducing related losses.

关键词： geohazard geohazard inventory airborne Li DAR sky view factor remote sensing interpretation complex mountainous areas

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Efficiency and safety of acupuncture for women with premature ovarian insufficiency:study protocol for a randomized controlled trial

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Journal of Traditional Chinese Medicine 2023年第6期43卷 1268-1274页

作者： xu Yani ZHANG Yutong HE weile DAI Linglin TANG Ding WANG Jialing ZHANG xufen CHEN Qin CHEN Lifang WANG Zhanglian ZHAN Mingjie the Third School of Clinical Medicine Zhejiang Chinese Medical UniversityHangzhou 310053China Department of Acupuncture the Third Affiliated Hospital of Zhejiang Chinese Medical UniversityHangzhou 310005China

Acupuncture has been widely used as an alternative and complementary therapy for premature ovarian insufficiency(POI)in ***,research to date has not shown that acupuncture is effective for POI compared with hormone replacement therapy(HRT).We will conduct a randomized,controlled,and outcome assessor-blind trial to evaluate the efficacy and safety of acupuncture on ***-six patients with POI will be randomly assigned to two *** treatment group will receive twenty-eight one-hour sessions of acupuncture treatments,and the control group will receive 12-week *** whole study will consist of a 12-week treatment plan and a 12-week follow-up *** primary outcome is measured by changes in serum anti-Müllerian hormone and follicle-stimulating hormone(FSH)levels at weeks 12 and *** outcome measures include estradiol,luteinizing hormone(LH),LH/FSH ratio,Kupperman index,and menstrual *** trial is expected to clarify whether or not acupuncture is effective and safe for POI compared with HRT.

关键词： acupuncture primary ovarian insufficiency hormone replacement therapy randomized controlled trial study protocols

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