Crystalline qualities and optical properties of InGaN/GaN quantum well improved by in situ SiNx pretreatment of GaN template

由于存在比较大的晶格失配和热失配，以蓝宝石为衬底的GaN外延层位错密度高，晶体质量差，阻碍了GaN基器件性能的进一步提高。降低GaN外延层中的位错密度，提高GaN材料的晶体质量是提高相关器件性能的基础，也是科研人员面临的机遇和挑战。 表面/界面改性技术可有效调控GaN和InGaN材料的生长行为及特性，通过对GaN基材料的不同生长阶段（不同位置）进行SiNx处理，调控GaN的生长模式与应力分布，可大幅降低GaN薄膜的位错密度，明显改善其表面形貌，增强发光性能。国际上已开展了许多关于SiNx处理改善GaN薄膜性质的研究，而SiNx预处理改善InGaN/GaN量子阱的研究仍然是个空白。本文在生长I...Due to the large lattice and thermal mismatches between GaN and sapphire, heteroepitaxially grown GaN films are usually characterized by high dislocation density and poor crystalline quality. Great efforts have been made to reduce dislocation density and improve crystal quality of GaN films for improvement of device performance fabricated from them. During the epitaxial growth, surface/in...学位：理学硕士院系专业：物理科学与技术学院_凝聚态物理学号：1982013115295

具有单参数空间对称群的向量场及其约化

对于保持某n-形式的n维向量场，应用Lie群的方法得到结论：当这类向量场有保持n-形式的空间参数对称群时，可具体地构造出一个与该向量场无关的变换，它不仅使向量场约化掉一维，并且使得约化向量场保持相应的(n-1)-形式。特别，当n=3时，简单地得到了Mezie和Wiggins最近得到的重要结果

Innovation and Countermeasure of Fujian Province Medical Insurance System

福建省于2001年1月开始全面实施基本医疗保险制度，经历过一年多的努力，劳保医疗、公费医疗旧体制已打破，新制度正朝着健康、稳定的方向发展。作为医疗卫生三项制度改革（医疗保险、医疗卫生体制和药品流通体制）中先行的一项改革，在其他两项改革未能及时配套运作的情况下，遇到了许多新的问题。在医保中心与医疗机构合作的过程中，出现了“对策”与政策斗智斗勇的过程。 本文从医疗保险制度改革作为其他两项改革的驱动力和外在监督力量的角度出发，总结国内外医疗保险制度运行的成功经验和失败教训，以控制医疗费用为中心分析当前福建省医疗保险制度改革的现状，根据当前国情、省情，提出完善基本医疗保险制度的对策。 本文共分为四...In January 2001, Fujian Province implemented the basic medical insurance system in an all-round way. Through more than one year’s efforts, the old systems, the labor medical insurance system and the official medical insurance system have been broken down. New medical insurance system is developing on a healthy and steady track. As the first of the three innovations of the medical insurance system,...学位：工商管理硕士院系专业：管理学院工商管理教育中心_工商管理硕士(MBA)学号：X199915043

Research of Shallow Sea Underwater Acoustic Node Positioning and Application

水声定位技术在水下测深、定位、目标探测与识别、通信、导航、遥控、寻找油气、开发矿产等方面得到了广泛的应用，在保障国家的国防安全和国民经济建设的顺利进行中起着重要作用。随着人类对水下探索研究工作的深入开展，所采用的研究手段也越来越丰富，水下机器人，载人深潜器以及其它各种探测设备不断革新，具有高可靠性的水下导航定位在海洋发展中的重要作用日益凸显。 传统的水声定位系统大部分比较复杂，布放较为麻烦，而且整个系统价格不菲，维护成本高，同时灵活性不够。单就其中数据采集系统而言，或者是软件系统或者是硬件系统，传统定位系统都需要花费大量的精力去搭建。为此，很多定位系统搭建者不惜花重金直接去购买现成的采集装置...Underwater acoustic positioning technology which is widely used in underwater depth measuring, positioning, target detection and recognition, communications, navigation, remote control, oil and gas detection, mineral exploitation and so on, plays an important part in the protection of national security and the well progress of national economy. With the human’s in-depth development of the underwat...学位：工学硕士院系专业：信息科学与技术学院_通信与信息系统学号：2332010115312

An Emotion Model Approach for Designing Non-Player Controlled Game Characters

为提升视频游戏中非玩家控制角色的交互体验,该文提出一种人工情感建模方法,使游戏角色能够表现出更多仿人的感性因素。在PSI理论的基础上,吸收OCC情感评价模型,令游戏角色具备响应交互事件的能力,并使角色情感的涌现与交互事件相符合。最后利用unITy3d游戏引擎,构建一个虚拟游戏世界,并实现一个可交互的非玩家控制的游戏角色。在与游戏角色的交互过程中,观察角色的情感动态并考察其合理性。In order to improve the interaction experience with non-player controlled characters in video games,the paper proposed an arti ficial emotion model approach and enabled game characters to show more human-liked emotional aspects.Based on PSI theory,this paper adopted OCC emotion appraisal model,implemented event-driven mechanism in game characters and made their emotional emergence accord to interactions.By using Unity3D game developing engine,a virtual game world was built and an interactive non-player controlled game character was also implemented.By observing the emotion dynamics of game characters during the interactions with them,the ratio nality of embedded emotion model could be judged

Image Super-resolution Reconstruction Algorithm Based on Spatial Adaptive Regularization

为提高稀疏表示系数的精度和图像的分辨率,提出一种基于稀疏表示和正则化技术的超分重建算法.首先引入自回归正则化项,通过样本图像来训练出描述图像局部; 结构的自回归模型,每个图像块自适应选择一个自回归模型用以调节解空间,实现图像局部的自适应性控制.然后,引入非局部相似正则化项作为自回归正则化项的; 补充,用于保持图像边缘清晰度.从而,完整构造出一种基于自回归正则化和非局部相似正则化的稀疏编码目标函数.为了进一步恢复图像,实现图像去噪、去模糊; ,利用总变分正则化实现全局优化.实验结果表明,与L1SR、SISR、ANR、NE + LS、NE + NNLS、NE + LLE和A + (16; atoms)等算法相比,无论在主观视觉效果还是客观评价指标上,提出的算法都取得了更好的超分重建效果.In order to improve the accuracy of sparse representation coefficients; and the resolution of the image,a novel super reconstruction algorithm; based on sparse representation and regularization technique is proposed.; First,the auto-regressive (AR) regularization term is introduced in; sparse coding objective function. The AR model which describes the local; structure of the image can be trained by using the sample images. And; each image patch adaptively selects an AR model to adjust the solution; space and realize the image local adaptive control. Then,the non-local; (NL) similarity regularization term is introduced as a complement to the; AR regularization term,which is used to preserve the edge sharpness of; the image. Therefore,the sparse coding objective function is constructed; based on the AR regularization and NL similarity regularization. In; order to restore the image and improve the performance of image; denoising and deblurring further,the total-variation regularization is; adopted to realize the global optimization. Experimental results; validate that compared with L1SR,SISR,ANR,NE + LS,NE + NNLS,NE + LLE and; A + (16 atoms) methods,the proposed approach achieves better; super-resolution reconstruction effects in both subjective visual; effects and objective evaluation criteria.国家自然科学基金项目; 泉州市科技计划项目; 华侨大学研究生科研创新能力培育计划项

液相色谱-串联质谱前驱离子扫描非靶向筛查卤代有机物

建立了液相色谱-串联质谱(LC-MS/MS)前驱离子扫描(PIS)非靶向筛查卤代有机物的分析方法。卤代有机物在PIS分析中产生的卤素碎片离子能通过PIS Q3预设的质核比通道(m/z 35、37、79、81和127),根据通过的质核比通道可判断卤代有机物种类,并获取其分子离子质核比信息,而非卤代有机物无法通过PIS Q3的筛选。当Q2碰撞能为50 eV时,PIS对卤代有机物具有较高的灵敏度。利用伯努利概型总结了不同卤代有机物的理论同位素峰数量和丰度比的规律,结合PIS分析结果可判断有机物携带卤素原子数量。本方法成功应用于实验室样品和海水中卤代有机物的筛查,未来有望用于其它环境样品中卤代有机物的快速筛检。国家自然科学基金项目(Nos.21477115,21876142)资助~

SPATIAL OPTIMIZATION STRATEGY FOR XIAOCHI IN HUBEI PROVINCE IN THE VIEW OF INTEGRATING NEIGHBORING CITIES OF JIUJIANG AND HUANGMEI

同城化是"从区域论城市"基础上形成的一种新的城市区域发展观。在湖北小池滨江新区上升为"省级战略"之际,从政策主导、内生驱动、外借助推、资源聚合等4个方面分析小池南望融入九江同城发展的动力。结合相关数据分析指出,在"中四角"地理中心与"鄂东门户"耦合的特殊区位条件下,小池发展面临区位优势转化难、产业定位游离、城镇化动力不足、空间风貌特色欠缺等问题,并从九江、黄梅"同城共建、拥江共享、错位共赢"3个维度指出,位于鄂东前沿阵地的小池城镇空间需要重点从构建完善的公共服务设施体系和基础设施网络、提升拥江发展的梯次空间品质、聚合错位发展的产业布局等方面调控优化,以彰显两地的同城化效应,带动鄂东门户地带的发展。Urban area integration is a new form of regional development based on the concept of "city-region." This paper analyzes the driving force for integrating Xiaochi into its neighboring Jiujiang City from the four aspects of the macroeconomic policy, the internal driving force, the external boosting power, and the endogenous resources aggregation, hoping to facilitate the development of Xiaochi Riverside District as it has risen as the "provincial strategy." Statistical analysis reveals that major challenges in Xiaochi, a town located in the center of the so-called "four corners in central China" as well as at "the gateway of eastern Hubei Province," consist of diffi culty in exploiting regional features, random industry positioning, feeble driving force for urbanization, and lack of spatial characteristics. This paper proposes a spatial optimization strategy to overcome the above challenges based upon the principles of "building as one city, co-sharing resources along the Yangtze River, and win-win via dislocation development" for the development of Jiujiang and Huangmei cities. In detail, Xiaochi, as a forefront located in eastern Hubei Province, should focus on boosting the public facility system and infrastructure network, enhancing the quality of its riverside echelon spaces, and optimizing dislocation development of the industrial layout. By doing so, the effect of urban area integration is expected to be highlighted to promote the development of the portal area in the eastern Hubei Province.国家自然科学基金项目(51478199);; 高等学校博士学科点专项科研基金项目(20120142120013

福建省大中城市流动妇女生殖健康状况调查研究

通过对福建省福州、厦门两城市1189例流动育龄妇女(18-49岁)进行问卷调查,对她们的生殖健康知识、行为影响最大的因素是文化程度和经济状况;其次年龄、流入时间、婚姻状况和生活方式等也有一定影响。流动妇女的生殖健康知识缺乏严重,相关部门应给予足够的重视,通过多部门的合作,全面促进流动人口的生殖健康

外资主导产业链下的内资升级障碍与突破战略

随着我国经济不断发展和理论研究的深入,经济学界发现,外资对内资产业升级不仅能起到推动作用,也会出现阻碍产业升级的问题。本文从产业链的角度,分析了在外资主导产业链之下,利润不足、竞争激烈、关联性差、外资技术限制等因素形成了内资产业升级的障碍。为了实现我国产业升级,相关政府部门应该转变原先以吸引外资为主要手段的发展战略,通过有效创新激励、适当调整引资策略、促进内资企业集中、培育国内竞争市场等手段,帮助内资产业实现升级突破