ETHNIC GROUP INTERACTIONS IN THE AREA UNDER THE DINGLUO CHIEFTAIN' S JURISDICTION IN WESTERN GUANGXI AND THEIR CONTEMPORARY EXPRESSIONS

壮、汉、瑶三族,是定罗土司辖区内族群互动的主体。长期以来,当地族群共居互动,壮汉两族间略有区隔,壮族人对瑶族人存有稍许偏见。随着各族群经济、社会、文化等方面的发展变迁,当地各族群间的互动关系也在不断变化调整。如随着外出谋生者的增多,当地各族群间现就土地、森林等生存资源的竞争在下降,这对缓和各族群间的原有摩擦有积极作用。与外界接触的增多,村民们的思想、观念更加开放,这亦增进了各族群对他族的认识和理解,族群间的隔阂在缩小。The Zhuang、Han and Yao were the main ethnic groups in the area under the jurisdiction of the Dingluo chieftain.These ethnic groups had been co- resided and interacted for a long time,yet there were some misunderstandings between the Zhuang and the Han,and the Zhuang prejudiced against the Yao to certain extent.With the developments and change of economy,society,culture and other aspects of all ethnic groups,the interactions among them are also changing and adjusting continuously.For example,along with the increase of going out for job- hunting,the competitions over survival resources such as lands and forests decrease.This plays a positive effect on easing the original frictions among the ethnic groups.The increase of contacts with the outside world brings more open to the villagers' thoughts and viewpoints,and this also enhances the mutual understanding and comprehension among ethnic groups,the gap between ethnic groups is lessoning

Research on the Algorithms for Content-Based Vehicle Video Retrieval System

基于内容的交通视频检索技术是在不需要人的干预，或者只需要很少干预的情况下，通过对摄像机拍录的视频进行分析，提取车辆的流量，速度，颜色，外形等特征存入数据库中，并能在事后或在线依照用户的要求检索到特定的车辆。基于内容的交通视频检索系统不仅能够为城市的交通规划提供了第一手的统计学数据，也可为交通监管部门追查交通违章和交通肇事车辆提供了极大的便利。本文围绕基于内容的交通视频检索系统的实现中几个难点做了比较深入的研究，提出了一些新的算法。主要的工作和贡献有：1.运动车辆检测。提出了一种动态更新背景模型的方法，并针对高架摄像机的抖动问题做了优化。提出了基于髙斯概率的阴影检测算法和基于轮廓投影定位车体的方...Content-Based Traffic Video Retrieval System is a human-effort-spared technique by which the vehicle features, such as the traffic volume, speed, color, shape of vehicles, etc., are to be extracted by processing and analyzing the traffic video captured by cameras. These traffic features are extracted and stored in a database together with the accompanied video, and then people can search for the i...学位：工学硕士院系专业：计算机与信息工程学院计算机科学系_计算机应用技术学号：20032801

景区旅游者空间行为研究综述

研究景区内旅游者空间行为对于提升景区管理、旅游产品开发、景区规划和景区营销水平都具有非常重要的意义。近年来,越来越多的学者意识到该研究的重要价值,同时随着GPS等现代信息技术的广泛应用,使得景区内的微观旅游者空间行为研究成为旅游者空间行为研究的热点。文章从行为数据获取、描述、解释和预测模拟等4个方面梳理了近年来国内外学者对景区内旅游者空间行为研究的现状。结合精细化行为分析这一趋势,指出:(1)GPS与问卷结合是景区内旅游者空间行为研究有效的数据源;(2)旅游者空间运动是描述和认识旅游者空间行为的重要方式,而景区旅游者空间运动往往可以被抽象为一个离散的过程;(3)离散选择模型用以揭示景区内旅游环境与空间行为作用机理,其中影响因素和选择项确定是模型构建的核心;(4)基于多主体的行为仿真能够为景区管理者提供有效的决策支持,在政策评估和预判等方面具有重要价值。国家自然科学基金项目“基于行为分析的景区人流模拟与空间优化—GPS与问卷结合的研究”和“基于轨迹数据的景区游客时空运动模式挖掘及内在机理研究”(41671141,71601164);;教育部人文社会科学基金项目“大数据驱动的景区游客时空运动模式挖掘与分析研究”(16YJC630177);;福建省自然科学基金项目“游客景点选择行为导向的景区服务设施布局方法”(2015J01226);;厦门大学中央高校基金项目“地图空间-认知空间-行为空间的作用机理及景区优化方法”(20720170046)共同资助~

The effect of nurse initiated patient/family education strategy on people with schizophrenia in Beijing

2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

基于3D＿ResUnet肝脏CT图像分割的临床应用研究

目的:为解决传统肝实质分割方法在阈值分割方面存在的分割精度低的问题。方法:采用AI自动识别算法,通过Unet与Resnet相结合的3D_ResUnet网络对肝脏CT图像进行分割,并对分割结果通过最大联通分量的方法去除杂质,得到较为精确的肝脏区域,实现肝实质自动分割。结果:基于3D_ResUnet的肝脏CT图像分割,其分割的平均Dice为96.12%,高于3D_Unet的分割精度。结论:基于3D_ResUnet的肝脏CT图像分割提高了肝实质分割的精度,实现了无需人工交互的全自动分割,通过应用在肝癌手术计划系统中,为临床医生的肝癌手术规划提供了可视化依据。国家自然科学基金(编号：61327001)~

Establishment of full-sib families of Branchiostoma japonicum and the relationship between early development patterns and larvae survival rates

2011年3月9日—5月19日,以厦门海域采集的野生个体和实验室繁育的日本文昌鱼成体为亲本,尝试性地建立了全同胞家系;采用温度和光照诱导的方法,对雌、雄亲本进行人工催产,获得了34对亲本的全同胞家系受精卵。在家系培育过程中发现致使胚胎和仔鱼死亡的几种主要原因,以及日本文昌鱼早期发育的两种模式。通过加强养护管理,提高仔鱼存活率,缩短幼体变态所需时间,最终建立了7个完成变态的全同胞家系。在这些家系中,从受精卵到完成变态后不久的亚成体存活率最高为32.4%,最低为1.67%,而变态最快历时24 d,最慢历时42 d。虽然在全同胞家系建立过程中,幼体死亡率高,家系间的胚胎和幼体生长发育状况差异大,但实验结果表明日本文昌鱼全同胞家系建立完全可行,为其优良品系选育建立了基础。One general requirement of individual laboratory animals is that they have known genetic backgrounds.However, ensuring such genetic similarity is difficult, and can be facilitated by breeding a full strain for experimentation.To this end, the authors bred 34full-sib families of amphioxus larvae/embryos.Due to the high mortality of the embryos and larvae, only seven full-sib families of juvenile amphioxus Branchiostoma japonicum were obtained.Among them, the highest and lowest survival ratios were 32.4% and1.67%, respectively, whereas the shortest metamorphosis and longest larva duration were 24 d and 42 d, respectively.These results demonstrate the feasibility of establishing full-sib families of amphioxus, and provide fundamental data needed for the future breeding of amphioxus strains.国家高技术研究发展计划(“863”)项目(2008AA092602); 国家自然科学基金项目(30830023); 深圳市科技研发资金项目(JSF201006290026A

基于图像匹配的运动背景补偿方法

本文提出了在运动背景下车辆检测的一种有效的算法。首先对前后两帧进行稀疏块匹配,计算出摄像机全局运动速度和方向,经过运动补偿后再通过两帧差分检测出运动区域,最后利用形态学膨胀消除边缘断裂,后经过种子填充,计算连通域面积,去除噪声区域。实验表明,在运动背景的车辆检测应用上,能够较准确地提取出目标车辆

Syndrome Index System Screening Based on Expert Questionnaire of Correspondence Between Traditional Chinese Medicine Syndrome and Symptom of Sub-health

目的:筛选亚健康中医证候指标,建立亚健康证-症对应关系。方法:采用专家问卷调查,考核专家权威系数、协调系数,运用均值,等级和,满分比等方法对亚健康脾气虚证、心气虚证、肺气虚证、肝气郁结证、火证和湿证6个中医证候对应的63个症状进行筛选。共有40位专家参与此次问卷调查。结果:问卷回收率为87.5%,34份有效问卷参与统计分析。问卷单个领域和总体的权威系数均≥0.8,问卷单个领域和总体的专家协调系数检验均具有统计学意义(P<0.01),问卷总体的专家协调系数为0.479。经过筛选,最后筛选出6个亚健康证候所对应的43项症状指标。结论:在保证专家群体具有较高权威性、协调性的情况下,运用专家问卷调查法,结合相关数理评价指标对亚健康中医证候指标体系进行筛选是有效的可行的。Objective: To screen the sub-health traditional Chinese medicine( TCM) syndrome indexes,and establish the corresponding relationship between sub-health syndromes-symptoms. Method: Expert questionnaire survey was used to test the authority coefficient and the coordination coefficient of experts,with use of means,sum of ranks,ratio of full marks to screen 63 symptoms included in the 6 TCM syndromes of spleen-Qi deficiency,heart-Qi deficiency,lung-Qi deficiency,liver stagnation,fire syndrome and dampness syndrome. A total of 40 experts were involved in the questionnaire survey. Result: The questionnaire recovery rate was 87. 5%,and 34 valid questionnaires were involved in statistical analysis. The overall and individual questionnaire authority coefficient was 0. 8 or higher,with statistical significance in overall and individual questionnaire coordination coefficient( P < 0. 01). The overall experts coordination coefficient was 0. 479. After screening,finally 43 symptoms in 6 sub-health syndromes were selected. Conclusion: Under the condition of a high degree of authority and coordination for the experts group,it is effective and feasible to screen the sub-health TCM syndrome indexes by using expert questionnaire survey combined with the relevant mathematical evaluation indexes.国家自然科学基金项目(81403324);; 广东省中医药管理局科研课题(20141211

塔里木沙漠公路防护林生态工程的综合生态环境效应

为了探讨重大工程的生态环境效应,从风沙环境、土壤环境、小气候、生物多样性和地下水环境5个方面对塔里木沙漠公路防护林工程的综合生态环境效应进行了研究.结果表明:(1)防护林改变了近地表风沙运动过程,防沙体系内风速、输沙率降低幅度分别达64%~80%和87.45%~99.02%,风沙流结构、沙物质粒度、地表蚀积状况也发生了明显变化;(2)与自然流沙地相比,防护林土壤容重减小,全盐含量、总孔隙度和含水量增大,土壤肥力质量明显提高,其变化基本呈现"先快后慢"的规律;(3)防护林对于小环境改善作用明显,距地面6m范围内,林地不同高度的空气温度普遍低于自然流沙地,而空气湿度则高于自然流沙地,林地土壤温度也低于自然流沙地;(4)随着防护林内生境的变化,土壤微生物种类显著增加,但不同种类微生物的种群分布并不均匀;(5)目前防护林灌溉抽水对地下水位、地下水矿化度的影响不大,水位在厘米级范围波动,矿化度的变化幅度在±1g·L-1左右,且没有明显的变化趋势