A New Study on the Relations between Psychological Barriers and the Rate of Return of Chinese Stock Market Index

当前中国经济与股票市场的联系已经越来越紧密，股票市场作为经济晴雨表的作用也愈发明显。通过把握股票指数来了解中国经济也相应的成为了热烈而有意义的研究课题。本文通过分析上证综指和深证成指这两只具有代表性的股票指数，采用建模、计量检验、模拟检验等方法对中国股市投资者的投资行为是否具有心理关口效应，以及心理关口效应对股指收益率变化的影响这两个主要命题进行了实证检验。 本文延承了已有文献的研究范围，并将实证检验拓展到了高频数据领域，对股指绝对值心理关口的类型进行了重新划分，提出存在关口附近M值分布频率较高的对称心理关口的假想，以及存在关口左右M值分布频率非对称的心理关口的假想，并在实证检验中获得了证据...As Chinese economy gets closer with its stock market, the latter one better stand for the economy weather than ever before. Thus, it is research on stock index that becomes hot and makes sense. Through this thesis, I run the test whether market participants in stock market hold the psychological barriers, using data of SHSE (Shanghai Securities Exchange) Composite Index and SZSE (Shenzhen Securiti...学位：经济学硕士院系专业：经济学院财政金融系_金融工程学号：2005130098

一种基于临床CT影像的肝内血管体积测量方法

肝脏血管体积不仅可以为临床疾病诊断提供重要参考,还对肝脏供血能力和肝脏储备功能的评估具有重要参考价值。本研究提出一种血管体积测量方法,利用置信连接和ITK-SNAP分割出肝内门静脉并进行空洞填补后,通过体素数目换算得到血管体积。该方法可快速、准确的计算出肝内门静脉的体积。实验采用10套不同规格的肝脏CT图像进行肝内门静脉血管体积测量,并选取3套数据与基于手工测量得到的血管体积进行对比。实验结果表明,通过本研究方法测量得到的体积与手工测量结果基本一致,利用统计学方法得到的肝内门静脉的体积为(11.316±1.080)m L。国家自然科学基金项目(61001144,61271336,61327001

Application of the three-dimensional visualization and 3D printing technology for the preoperative evaluation of retroperitoneal tumors

目的探讨三维重建及3D打印技术在腹膜后肿瘤术前评估中的应用价值。方法回顾性分析2011年3月至2015年9月厦门大学附属成功医院收治的50例腹膜; 后肿瘤病人的临床资料,应用人体器官三维建模软件将病人的CT二维图像重建成三维可视化图像,使用人体器官模型3D打印设备,用两色热塑性塑料打印实物模; 型,通过观察肿瘤与腹腔器官、腹部大血管之间的关系进行术前评估并制定手术方案。实施手术,术中比较重建结果与实际的区别。结果50例病人均成功完成三维; 重建,其中10例病人完成3D打印,三维重建结果及3D打印模型能够立体、清晰和实物化的显示肿瘤解剖学位置及与周围器官、血管的毗邻关系,与术中实际情; 况大致相符。50例病人均顺利施行手术,术中无死亡。结论三维重建及3D打印技术能够对腹膜后肿瘤术前进行精准评估,对指导手术具有一定的应用价值。Objective To explore the application value of three dimensional; visualization and 3D printing technology in the preoperative evaluation; of retroperitoneal tumors. Methods March 2011 to September 2015,the; clinical data of 50 cases of retroperitoneal tumor patients in Xiamen; University Affiliated successful hospital were retrospectively analyzed.; Xiamen strong science and technology R & D human organ 3D modeling; software will reconstruct 2D CT image visualization into a; three-dimensional visualization image,and then it can print physical; model with the company's XMQB-I human organ model 3D printing equipment; and white thermoplastic. At last,preoperative evaluation and surgical; plan can be made through the relationship between the tumor,organs in; abdominal cavity,and abdominal vascular. During the surgery,make a; comparison between the visualization results with the actual condition.; Results 50 cases of patients were successfully completed the; three-dimensional visualization,including 10 cases of patients; completed. Three-dimensional visualization and 3D printing model can; three-dimensionally,clearly show the adjacent relationship between the; anatomical tumour location and surrounding organs and blood; vessels,broadly in line with the actual surgery. 50 surgeries were; successfully performed,no death during perioperative period. Conclusion; Three dimensional visualization and 3D printing technology can make an; accurate preoperative evaluation of retroperitoneal tumors,which has a; certain application value for guiding surgery.国家自然科学基

结肠癌伴孤立巨大肝转移切除术一例

患者男,72岁,因“反复中上腹胀痛不适1月余“入院;既往有乙肝病史,无高血压、糖尿病、心脏病等病史,无手术史。入院查CT示:左肝巨大占位,约22.1 CMx11.3 CM,与胃小弯粘连(图1);门静脉右支无显示(图2),左结肠壁增厚,考虑结肠癌肝转移可能。肿瘤标记物检查示:CEA 54.52μg/l,CA19-9 120.10 u/Ml,AfP正常,血常规、血液生化分析未见国家自然科学基金资助项目(81272246、81101502、61271336、61327001

Application of a three-dimensional visualization technology for precise before retroperitoneal tumor surgery(Report of 15 cases)

目的探讨三维可视化技术在腹膜后肿瘤术前评估中的应用价值。方法回顾性分析2011年3月至2013年12月厦门大学附属成功医院收治的15例腹膜后肿瘤病人的临床资料,应用三维可视化技术将病人术前二维CT图像进行三维可视化重建,通过观察肿瘤与腹腔脏器、腹部大血管之间的关系及测量肿瘤体积、手术模拟进行术前评估。对实施手术的病人,比较重建结果与实际手术的区别,对模拟切除肿瘤体积与实际切除肿瘤体积进行相关性分析。结果 15例病人三维可视化重建后图像清晰立体地显示肿瘤组织、腹腔实质脏器、腹腔大血管的解剖结构及毗邻关系,12例评估后行腹膜后肿瘤切除术,三维重建肿瘤的解剖关系与术中大致相符。12例手术病人术前模拟切除肿瘤体积(1117.50±690.35)M l,实际切除肿瘤体积(1189.92±737.74)M l,两者比较差异无统计学意义(T=0.25,P>0.05),具有相关性(r=0.81,P0.05).The actual liver resection volume was positively correlated with the predicted liver resection volume(r=0.81, P<0.05).Conclusions The three-dimensional visualization technology has acertain degree of clinical value in the precise before retroperitoneal tumor surgery.国家自然科学基金资助(No.81272246;81101502;61271336;61327001

The Design of Anterior Segment Image Capturing System Using DirectShow

利用裂隙灯显微镜观察眼前节是眼科诊断中常用的检查手段,但长期以来存在着数据获取、保存和共享上的困难.而D irectShow是W indows平台上进行流媒体应用开发的最新标准.利用D irectShow技术设计了眼前节图像采集系统.阐述了根据需求构建采集系统的F ilter G raph模型的方法,包括采集设备的选取,视频流的预览和采集,以及如何使用Samp leG rabber方法捕捉眼前节图像,并提出了将D irectShow与MFC相结合进行开发的方法.该系统可以辅助眼科医师进行病理诊断,使医师可以有时间对图像进行细致的分析,从而提高病理诊断的正确率.经实际临床测试,效果较为理想.Observing anterior segment via slit lamp microscope is a common measure in ophthalmological diagnoses.However,this method has its inherent problem regarding to the difficulty of its data acquisition,storing and sharing.In this paper,a new design of anterior segment image capturing system based on DirectShow,which is a new standard media-streaming architecture for Windows platform, was presented.The building of Filter Graph model, which was the focus of the paper,included mainly three parts:the selection strategy of capture device,the preview and capture of video stream, and capturing anterior segment images by Sample Grabber method.A new method was proposed to the combination of DirectShow and MFC. With the help of this system,ophthalmologists can fix attention on in-depth analysis and as a result,the veracity of diagnosis can be increased.According to ophthalmologists,this system shows good results in clinic practice.国家自然科学基金(60371012);; 福建省科技重点项目(2002Y021);; 厦门市科技计划重点项目(3502Z20041044

VLSI Design And Implementation of A Real-Time Video Resolution Improvement Algorithm

提出了一 种适合硬件 实现的实时视 频分辨率提 升算法并给 出该算法的 ＶＬＳＩ硬件 实现结构。本 文根据图像空域内邻近 像素多个方 向的内容相关 性并结合改 进的中值滤 波方法，得到 一种基 于图 像最大 相关 性的自 适应 优化插值算法，有效改 善了视频分 辨率提升过 程中所出现 的图像细节 模糊和边缘锯 齿化等问题 。算法已经在Ｘｉｌｉｎｘ ＦＰＧＡ 平台上通过验 证，实现了对视 频信号的实 时分辨率提 升，结果表明该 算法能有效 提高图像清 晰度和视觉 效果。A real-time video resolution improvement algorithm and its hardware structure on VLSI is presented in this paper. We put forward an adaptive interpolation algorithm based on the max-relativity of the image by taking account into the temporal image content relativity of multi directions and an improved median filter. The algorithm is efficient in eliminating staircase and detail smoothing of image during interpolation. Our algorithm has been validated in XILINX FPGA platform. The results show that the proposed algorithm might be very suitable for definition and visual quality improvement of video.国家自然科学基金资助(60371012);; 福建省重点科技项目(2002Y021

A Hybrid Segmentation Algorithm of Parasite Eggs Image Based on Morphological Filtering

寄生虫卵的自动识别是当今寄生虫医学图像处理的一个重要课题,目前已有算法一般都要求寄生虫标本杂质含量较少。提出一种基于形态学滤波的混合分割算法,首先采用b颜色信号提取有用信息,接着利用改进的形态学操作进行滤波,除去大量杂质及虫卵边缘粘合物,最后结合凸包运算并定义两个图像特征参数,即边界光滑度和区域填充度,做进一步选择。实验结果表明,该算法明显优于当前的一些虫卵分割算法,能充分利用虫卵的有用信息,有效剔除杂质,大大降低虚假目标,虫卵边界保留完整清晰,为寄生虫卵的自动识别打下了良好基础。Automatic recognition of parasite egg is an important topic in the field of parasite medical image processing.At present,existing algorithms always require fewer impurities in parasite specimens.In this paper,a hybrid segmentation algorithm based on morphological filtering was presented.Firstly,a B color signal was used to extract useful information, and then an improved morphological operation was applied to remove a large number of impurities and the egg adhesive materials.Finally,the parameters of image feature were acquired,such as area filling degree and boundary smoothness degree through convex hull operation for further selection.Experimental results have proved that the proposed algorithm is superior to the other existing segmentation algorithms.It can make full use of eggs' useful information,effectively remove impurities,significantly reduce the false targets,and keep the eggs' borders intact and clear.In conclusion,it lays a good foundation for the automatic recognition.国家自然科学基金(编号:30770561); 卫生部科学研究基金—福建省卫生教育联合攻关计划资助项目(编号:WKJ2005-2-001;WKJ2008-2-41); 福建省青年科技人才创新资助项目(编号:2009J05156)~

The Development of a Phoneline-Based Distant Multi Parameter Monitoring System

远程监护和家庭护理技术是远程医疗非常重要的一个研究领域，由于心脏病和高血压病发病时一般具有突发性和危险性的特点，因此一般将心电图和无创血压的远程监护和报警作为家庭监护的首选内容．论文所开发的远程医疗监护系统采用普通电话线作为传输介质，是一种集实时监测、诊断与急救指导、心脏保健为一体的新型院外监护系统．监护中心站通过电话线能同时对多达８位院外患者的心电（心律失常）、血压和体温进行在线、准实时和长期监测，因而既可用来作为院内监护的延续，也可用来协助门诊诊断不明原因的心悸、胸闷、胸痛和晕厥患者的病情；或用于急性心肌梗塞后，以及室性心律失常、高血压病等高危患者的检测和指导治疗．监护中心站采用Ｗｉｎ９ｘ 为系统平台，在开发中充分利用以ＣＯＭ 为基础的ＡｃｔｉｖｅＸ组件工具精心设计了通信模块、心律检测和心律异常分析模块，从而使系统不仅功能强大，而且获得了很好的鲁棒性．Telemonitoring and home health care technique are both among the most important research areas in telemedicine. Because heart disease and high blood pressure disease are very dangerous and paroxysmal, telemonitoring and alarming for ECG wave and noninvasive blood pressure are just the most important applying domain. In this paper, the design of a phoneline based remote multi parameter care system that may combine real time monitoring and online guide for patients in danger is discussed. The central monitoring system coold be used to monitor up to eight patients` ECG, blood pressure and temperature through the phone line at the same time .The whole system may be used for the extending ICU/CCU outside hospital, corporating with the clinic to diagnose unreasoned palpitations, chest pain and syncope, as well as for monitoring and curing guide for highly dangerous patients with abnormal heart rhythm and high blood pressure. The central monitoring system is designed on Win9x OS, and because of the thorough use of the ActiveX controls which are based on the COM Model to design the communication module, the HR check module and the abnormal heart rhythm check module, the system is not only outstanding but robust also