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本文应用我国推广普及型ＣＴ（ＣＴＭＡＸ－Ⅱ），根据世界卫生组织（ＷＨＯ）提出的ＱＡ、ＱＣ体系的原则，制定我院ＣＴ室十个扫描技术规范和ＣＴ诊断技术规范等，和ＣＴ日常维护（ＰＭ）规程和ＣＴ图像考贝后处理等３个规程． 相似文献
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The objective of this study is to identify system parameters from the recorded response of base isolated buildings, such as USC hospital building, during the 1994 Northridge earthquake. Full state measurements are not available for identification. Additionally, the response is nonlinear due to the yielding of the lead-rubber bearings. Two new approaches are presented in this paper to solve the aforementioned problems. First, a reduced order observer is used to estimate the unmeasured states. Second, a least squares technique with time segments is developed to identify the piece-wise linear system properties. The observer is used to estimate the initial conditions needed for the time segmented identification. A series of equivalent linear system parameters are identified in different time segments. It is shown that the change in system parameters, such as frequencies and damping ratios, due to nonlinear behavior of the lead-rubber bearings, are reliably estimated using the presented technique. It is shown that the response was reduced due to yielding of the lead-rubber bearings and period lengthening. 相似文献
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lINTRODUCTIONAstotourismofdevelopingcountries,asPecialresearchfieldwasdividedfrompopuIartourismstudybysomewestemresearchers,manyspecialwordswereoftenusedsuchas"twosectors","enclaveconstrUction",j'developingscale","govemment'sin-terferenceandtheindustryroleoftourism"(MARTIN,l993;JENKIN,l982;JENKINetal.,l982,E-MANUL,l992)'AspecialattentiongiventoChinaisonlysomepoliticalanalyzingabouttourism(RICHTER,1983;HALL,l994;TREVoR,l998).AstoChineseleisurelife,recentlysomepapershadbeen… 相似文献
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Improving maternal health is one of the Sustainable Development Goals. Hospital service areas (HSAs), which contain most hospitalization behaviors at the local scale, are crucial for health care planning. However, little attention has been given to HSAs for maternal care and the hierarchy structure. Considering Hubei, central China, as a case study, this study aims to fill these gaps by developing a method for delineating hierarchical HSAs for maternal care using a network optimization approach. The approach is driven by actual patient flow data and has an explicit objective to maximize the modularity. It also establishes the hierarchical structure of maternal care HSAs, which is fundamental for the planning of hierarchical maternal care and referral systems. In our case study, 45 secondary HSAs and 22 tertiary HSAs are delineated to achieve maximal modularity. The HSAs perform well in terms of indices such as the Localization Index and Market Share Index. Furthermore, there is a complementary relationship between secondary and tertiary hospitals, which suggests the need for referral system planning. This study can provide evidence for the validity of the HSA and the planning of maternal care HSAs in China. It also provides transferable methods for planning hierarchical HSAs in other developing countries. 相似文献
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Health care facilities may undergo severe and widespread damage that impairs the functionality of the system when it is stricken by an earthquake. Such detrimental response is emphasized either for the hospital buildings designed primarily for gravity loads or without employing base isolation/supplemental damping systems. Moreover, these buildings need to warrant operability especially in the aftermath of moderate‐to‐severe earthquake ground motions. The provisions implemented in the new seismic codes allow obtaining adequate seismic performance for the hospital structural components; nevertheless, they do not provide definite yet reliable rules to design and protect the building contents. To date, very few experimental tests have been carried out on hospital buildings equipped with nonstructural components as well as building contents. The present paper is aimed at establishing the limit states for a typical health care room and deriving empirical fragility curves by considering a systemic approach. Toward this aim, a full scale three‐dimensional model of an examination (out patients consultation) room is constructed and tested dynamically by using the shaking table facility of the University of Naples, Italy. The sample room contains a number of typical medical components, which are either directly connected to the panel boards of the perimeter walls or behave as simple freestanding elements. The outcomes of the comprehensive shaking table tests carried out on the examination room have been utilized to derive fragility curves based on a systemic approach. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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理县医院后山滑坡为＂5.12汶川地震＂诱发的次生地质灾害。地震导致医院后山斜坡开裂,形成三级主裂缝,降低了斜坡稳定性,形成次生滑坡灾害,后期降雨及余震则使滑坡继续变形发展。为及时掌握滑坡的变形趋势,做好防灾准备,同时为后续治理工程提供依据,开展了以裂缝位移监测为主的应急阶段自动化监测工作。监测系统由裂缝位移计、无线数传终端、太阳能供电组件以及室内计算机、监测管理软件组成。根据理县医院后山滑坡具备三级主裂缝的特点,在每级裂缝上沿走向设置监测点,共设置9个,各监测点每小时自动巡检一次。 相似文献
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Hospital service areas (HSAs) are increasingly adopted as a basic analysis unit for health care studies. The popular Dartmouth HSAs were produced more than two decades ago, and the process was far from automated. This research uses a Huff-based model automated in a geographic information systems (GIS) environment to delineate HSAs. Based on the Florida State Inpatient Database (SID) in 2011, a best-fitting distance decay function is derived from the actual travel patterns of hospitalization and then fed into the Huff model to strengthen the model's theoretical foundation in individual spatial behavior. The HSAs derived from the Huff-based model are then compared to the traditional flow-based HSAs defined by the Dartmouth method and assessed in terms of self-containment and heterogeneity of internal socioeconomic structure and urbanicity. The Huff-based model requires fewer data and is easy to implement as an automated toolkit and thus has great potential for replication in other regions to define large-scale and consistent HSAs. 相似文献
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新重力P中值模型及其在城市综合医院区位决策中的实证检验——以无锡市为例 总被引：1，自引：0，他引：1
区位—分配模型是实现公共服务设施最适配置的有效方法之一。传统的P中值模型以效率作为导向,采用“邻近分配”规则,不考虑设施容量(规模),难以适应城市综合医院供需之间相互作用规律下适度均衡、居民随机概率式选择和区位与规模同步求解的布局要求。本文尝试以P中值模型为基础框架,在对P中值模型来源及其适用性进行分析的基础上,构建出基于供需双方(居民—综合医院)空间相互作用的重力P中值模型。新模型通过纳入“邻近就医”最大出行成本因子,确保居民至少邻近1所综合医院(保障空间公平);通过追求总加权出行成本最小化,确保设施空间配置效率;通过纳入设施容量规模因子实现设施区位和规模同时求解;通过纳入最小规模因子,保障设施规模效率和服务质量公平。进一步通过无锡市区综合医院空间配置进行实证检验发现：采用新模型优化后,综合医院空间配置更加公平、居民邻近就医更加便捷,且能够实现与社区卫生设施协同布局,使整个医疗设施体系空间布局更加合理。本文构建的新重力P中值模型(模型的变量参数可作适当调整)可用于竞争型公共设施区位决策,为相关设施布局调整或者规划提供决策依据。 相似文献
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We survey the status of former public psychiatric hospitals, asking what has happened to the land and buildings. Drawing on Anderson's notion of traces, we argue for the transcendent role of stigma in closure processes and in subsequent reuse. We examine the extent to which evidence of mental health care remains at former hospital sites and developed a fivefold classification of end uses – retained health care; trans‐institutionalisation (to new institutional uses); residential; commercial; and dereliction. We conclude that while stigma is pervasive in shaping traces of the psychiatric hospital, its effects are filtered by locality‐specific factors including commercial potential. 相似文献