分布式虚拟战场环境管理器的设计与实现

在分布式交互仿真中,根据战术想定快速准确构建合适的虚拟战场环境具有重要意义。分布式虚拟战场环境管理器可以根据作战想定快速、准确的构建一个虚拟战场环境。本文介绍了该管理器的总体结构,分析了各组成模块的功能,说明了在分布式交互仿真过程中,虚拟战场环境管理器的运行方式,详细阐述了实体类信息和交互类信息的处理流程。最后,介绍了分布式虚拟战场环境管理器在虚拟战场中的应用,说明虚拟战场环境管理器可以在分布式交互仿真中快速创建一个支持HLA-RTI的三维显示节点。     

基于统一抽象模型结构的建筑物建模仿真集成平台研究

建筑物仿真应用中,建筑物的建模、分析和仿真通常分布在不同的环境中,不仅造成了仿真流程的不连续性,而且数据在不同环境之间转换时,容易造成信息的流失。本文提出了统一抽象模型结构（Unified Abstract Model Structure,UAMS）,基于此结构构建统一的仿真运行平台,实现了建筑物层次化建模、结构分析以及仿真过程的一体化流程。此外,本文提出了一种快速重构算法,实现了有限元结果的简化和三维模型重构,保证了仿真过程及结果的实时三维显示。     

数字图像信息管理与web发布研究

本文研究了进行数字图像信息管理与web发布的原理、关键技术问题;结合遥感影像数据库的应用目标提出了一套基于小波压缩的技术实现方案,介绍了利用Oracle spatial构建图像数据库系统的实现方法。     

网络中心战通信仿真模型结构与逻辑研究

网络通信效能的建模仿真是网络中心战（network centric warfare,NCW）信息增值链条仿真研究的重要组成部分。在HLA（high level architecture）分布式虚拟战场环境中进行NCW信息网络的建模仿真,有＂分散式＂和＂集中式＂两种实现途径。本文通过对网络中信息传递过程的分析,分别给出了两种仿真途径的通信模型组成和仿真实现逻辑。对于＂分散式＂通信仿真,引入了多个功能函数对消息的各个处理流程及通信链路性能进行功能性建模;借助网络仿真工具构建NCW跨层的网络通信协议栈模型,从而实现NCW虚拟战场＂集中式＂通信仿真。这两种仿真途径的逻辑实现方法为在HLA分布式虚拟战场中进行NCW通信仿真研究提供了一种解决思路,对NCW网络化信息增值的效果研究具有实际意义。     

基于三维数字地球的大气环境仿真可视化表达

文中针对大气环境仿真数据可视化问题,开展了基于NetFramework应用程序开发体系和ESRIArcGIS9．3平台的大气环境要素可视化表达技术研究,通过选择合适的模型与存储结构,对大气环境数据进行组织与管理,按照大气环境要素的可视化需求,融合数字高程数据和大气环境要素数据,实现基于三维数字地球的各类大气环境仿真要素的二维、三维可视化显示。     

雷达电子战仿真视景系统的设计与实现

根据水面舰艇雷达电子战装备作战运用的实际需求,设计了雷达电子战仿真视景系统的框架结构,详细阐明了各部分的功能及系统运行流程。研究了基于Multigen Creator和Vega Prime的三维模型建立和视景驱动软件实现方法,分析了三维模型数据库管理方式,提出了在与其他仿真系统互联互通时的一些关键技术问题的解决方法。最后,给出了应用实例。该视景系统建立了可扩展的对仿真过程的人工干预机制,实现了大规模海战场景的显示优化,实现了基于粒子系统的烟云、雨雪、爆炸、燃烧等特殊效果和雷达电子战可视化效果的逼真显示。     

战术导弹仿真模型的验证方案设计及实现

模型可信度是仿真试验是否有效的关键环节,建模与仿真VV＆A（verification,validationand accred itation）活动的有效实施是仿真模型可信度的重要保证。根据VV＆A标准规范,提出了基于建模与仿真全生命周期的战术导弹模型验证方案,设计和规划了模型验证过程、内容和验证方法;仿真模型验证方案的实施离不开高效实用的模型验证自动化工具辅助,依据仿真模型验证方案,设计开发了模型验证自动化工具软件,实现了模型验证过程和资源信息管理,及定性和定量模型验证等功能。本文简要描述了自动化工具软件的设计思路及总体结构。最后结合具体应用验证了模型验证方案的可行性和自动化软件的实用性。     

基于R语言BP神经网络瓦里安NovalisTx直线加速器MLC系统故障预测模型研究

目的 构建并研究瓦里安NovalisTx直线加速器MLC系统故障预测BP神经网络模型。方法 取加速器临床使用18个月MLC系统故障统计数据为研究对象,以加速器使用总时间、月治疗患者数量、日均开机工作时间、RapidArc计划数量及加速器保养后时间间隔为输入故障因素,以故障频次预测为输出结果,采用R语言AMORE包构建MLC系统故障预测BP神经网络模型并对其进行仿真验证。结果 模型采用3层网络实现输入输出转换,其输入层5个节点、隐层13个节点、输出层1个节点;输入层至隐层、隐层至输出层分别选用tansig、purelin传递函数;模型设定最大训练学习次数150次,实际使用111次,设定误差3%,实际误差2.7%,表明其收敛较好。该模型对18个月临床故障数据仿真验证结果表明预测数据与实际数据较为接近。结论 基于R语言BP神经网络故障预测模型实现了MLC系统故障因素与故障频次间映射关系描述,可为设备故障规律了解和备件库存管理提供参考。     

逆向工程技术在乳房整形中的应用研究

目的探讨逆向工程技术在乳房整形再造中的临床应用价值。方法应用逆向工程技术对56例乳房整形患者进行了三维数字化模型重建、计算机辅助测量分析、仿真手术模拟和快速原型技术制作乳房实体模型,再根据三维模型提供的直接信息,制定合理有效的治疗措施。结果应用逆向工程技术实现了计算机辅助的乳房整形手术模拟,制定量化、个性化的手术方案。术后乳房整形美容效果：50例为优,6例为良。结论逆向工程技术为乳房整形和再造提供了一种新的技术手段和具体指导．     

放疗科信息化管理平台建设及应用研究

目的 开发放疗科信息化管理平台,优化放疗流程,实现放疗流程管理信息化,提高医疗效率。方法 采用多元化数字化模板实现肿瘤治疗信息整合,以服务器配多终端模式组建放疗流程信息化管理平台,按照不同岗位设置工作权限,同时系统与放疗计划系统、医院信息系统以及医学影像的存储和传输系统等连接,实现放疗科信息采集、记录收费、信息传递以及计划评估与审核等操作信息化。结果 放疗科信息化管理平台能够优化放疗流程,解决放疗科内不同系统间缺乏联系、信息散乱的现状,同时实现了放疗科与医院多种信息信息平台的互联互通,规范了放疗流程,提高临床工作效率。结论 放疗科信息化管理平台的应用提高了放疗流程信息化管理水平,建立统一的肿瘤治疗流程规范,为临床医疗提供完善的流程及质控管理方案,在治疗流程管理、信息采集的系统化、质控等方面处于业内领先地位,具有独创性和前瞻性。     

放射治疗全自动化计算机管理的实施

目的：开发放射治疗全自动化管理系统。方法：采用SQL2000数据库＋VB编程语言编程，C／S模式架构。把IC卡读写系统、患者基本信息入档系统、模拟定位系统、TPS系统、放疗计划系统、自动收费系统、放射治疗系统、自动切割系统、自动验证系统等一系列子系统整合。结果：通过整合把整个系统分为：患者基本信息工作站、财务收费工作站、放疗物理师工作站、放疗技师工作站、放疗医生工作站、系统工作站，实现了整个放疗数据计算机管理。结论：系统安全可靠，自动化程度高，放疗剂量计算准确，有效的减少了人为因素引起的误差，实现了信息自动化管理。     

The assessment and management of sexual difficulties after treatment of cervical and endometrial malignancies

As survival rates in the developed world for cervical and endometrial cancer continue to improve, both health practitioners and the women affected by these illnesses have begun to focus increasingly on quality of survival. Although survival has improved as a result of multimodal treatment regimens, this is not without an associated increase in both acute and late treatment-related toxicity. Treatment late effects in these women can affect bowel and bladder function and may also cause sexual difficulties. The systematic assessment and management of late effects lacks integration within current models of oncology follow-up. This lack of routine clinical assessment and availability of specialist referral pathways is particularly noticeable in relation to the management of female sexual difficulties. Sexual rehabilitation for women lags behind that provided for men with pelvic malignancy, particularly since the introduction of PDE5 inhibitor drugs in the 1990s and this inequity must be addressed.     

光照对数字树木生长影响研究综述

光是影响树木生长的重要环境因子。模拟光对树木生长的影响，可以用于虚拟林业生产及模拟生态环境变化的试验，这对林业和景观的发展研究、对林业、景观和土地等资源的利用和环境建设都有着重要的指导意义。本文首先介绍了理想环境条件下的主要的数字植物生长模型，并在此基础上，引出了考虑光照影响的植物生长模型。这些模型根据模拟现象的不同，可分为两类：第一类模型模拟的是光照对树枝生长方向及树芽存活概率的影响；而第二类是近几年才开展，现在正蓬勃发展的可用于模拟光照对树木光合作用影响的植物生长模型。本文按时间顺序，分别介绍了两类模型中的突出工作和技术成果，并分析了它们的优缺点，最后对这一研究课题的进一步的发展趋势进行了讨论。     

Evidence and research in rectal cancer

The main evidences of epidemiology, diagnostic imaging, pathology, surgery, radiotherapy, chemotherapy and follow-up are reviewed to optimize the routine treatment of rectal cancer according to a multidisciplinary approach. This paper reports on the knowledge shared between different specialists involved in the design and management of the multidisciplinary ESTRO Teaching Course on Rectal Cancer. The scenario of ongoing research is also addressed. In this time of changing treatments, it clearly appears that a common standard for large heterogeneous patient groups have to be substituted by more individualised therapies based on clinical-pathological features and very soon on molecular and genetic markers. Only trained multidisciplinary teams can face this new challenge and tailor the treatments according to the best scientific evidence for each patient.     

一种基于μ子进行核材料探测成像的模拟系统

宇宙射线斗子成像检测技术具有穿透力强、对高Z材料敏感等特点，特别适合检测特殊核材料，是监控核材料走私的有效方式之一。在搭建μ子成像检测硬件系统的同时，我们开发了一套针对实际硬件系统的模拟系统，并利用该系统开展斗子成像方法的研究。本文将介绍该模拟系统的有关情况，并给出利用该系统得到的仿真结果。相信这一工作将对实际宇宙射线μ子成像系统的设计给出指导意见。     

Risk Estimation for Lung Cancer in Libya: Analysis Based on Standardized Morbidity Ratio,Poisson-Gamma Model,BYM Model and Mixture Model

Cancer is the most rapidly spreading disease in the world, especially in developing countries, including Libya. Cancer represents a significant burden on patients, families, and their societies. This disease can be controlled if detected early. Therefore, disease mapping has recently become an important method in the fields of public health research and disease epidemiology. The correct choice of statistical model is a very important step to producing a good map of a disease. Libya was selected to perform this work and to examine its geographical variation in the incidence of lung cancer. The objective of this paper is to estimate the relative risk for lung cancer. Four statistical models to estimate the relative risk for lung cancer and population censuses of the study area for the time period 2006 to 2011 were used in this work. They are initially known as Standardized Morbidity Ratio, which is the most popular statistic, which used in the field of disease mapping, Poisson-gamma model, which is one of the earliest applications of Bayesian methodology, Besag, York and Mollie (BYM) model and Mixture model. As an initial step, this study begins by providing a review of all proposed models, which we then apply to lung cancer data in Libya. Maps, tables and graph, goodness-of-fit (GOF) were used to compare and present the preliminary results. This GOF is common in statistical modelling to compare fitted models. The main general results presented in this study show that the Poisson-gamma model, BYM model, and Mixture model can overcome the problem of the first model (SMR) when there is no observed lung cancer case in certain districts. Results show that the Mixture model is most robust and provides better relative risk estimates across a range of models.     

基于多学科诊疗模式下的乳腺癌患者全程管理公众号内容的构建

目的 构建基于多学科诊疗模式下的乳腺癌患者全程管理公众号功能模块及具体内容。方法 在查阅文献的基础上，结合本科室现行乳腺癌全程管理模式初步拟订乳腺癌患者全程管理平台模块内容框架。采用德尔菲专家咨询法对17名从事乳腺癌诊疗相关的医护专家就该平台模块内容进行2轮咨询，并根据专家咨询结果调整并构建全程管理公众号模块内容。结果 2轮专家咨询的积极系数均为100％，专家权威系数（Cr）为0.91。构建出包含6项一级指标（患者档案、治疗追踪、诊疗服务、知识宣教、延续护理、意见反馈），20项二级指标及相应内涵的乳腺癌患者全程管理模块内容。结论 本研究建立的乳腺癌患者全程管理平台模块内容专家意见集中，结果科学可靠，可为后期乳腺癌护理信息化建设提供科学依据。     

How can we improve cancer care? A review of interprofessional collaboration models and their use in clinical management

Background

Multimodal cancer care requires collaboration among different professionals in various settings. Practice guidelines provide little direction on how this can best be achieved. Research shows that collaborative cancer management is limited, and challenged by numerous issues. The purpose of this research was to describe conceptual models of collaboration, and analyze how they have been applied in the clinical management of cancer patients.

Methods

A review of the literature was performed using a two-phase meta-narrative approach. The first phase involved searching for conceptual models of collaboration. Their components and limitations were summarized. The second phase involved targeted searching for empirical research on evaluation of these concepts in the clinical management of cancer patients. Data on study objective, design, and findings were tabulated, and then summarized according to collaborative model and phase of clinical care to identify topics warranting further research.

Results

Conceptual models for teamwork, interprofessional collaboration, integrated care delivery, interorganizational collaboration, continuity of care, and case management were described. All concepts involve two or more health care professionals that share patient care goals and interact on a continuum from consultative to integrative, varying according to extent and nature of interaction, degree to which decision making is shared, and the scope of patient management (medical versus holistic). Determinants of positive objective and subjective patient, team and organizational outcomes common across models included system or organizational support, team structure and traits, and team processes. Twenty-two studies conducted in ten countries examining these concepts for cancer care were identified. Two were based on an explicit model of collaboration. Many health professionals function through parallel or consultative models of care and are not well integrated. Few interventions or strategies have been applied to promote models that support collaboration.

Conclusions

Ongoing development, implementation and evaluation of collaborative cancer management, in the context of both practice and research, would benefit from systematic planning and operationalization. Such an approach is likely to improve patient, professional and organizational outcomes, and contribute to a collective understanding of collaborative cancer care.