查询词典 sampling methods

Methods Fourteen healthy pigs were anesthetized and intubated, the right carotic artery was cannulated for blood pressure monitoring and blood biochemical sampling.

术中输入不含糖的平衡盐液，供肝用Collin's液灌注。在无肝期采用体外静脉转流，经左侧股静脉和门静脉插管，引流出的血流经体外转流系统输入左侧腋静脉。

Methods: Design: Crosssectional questionnaire survey. Measures: Demographic data, CDC (1994) CFS diagnostic criteria, Trudie Chalder fatigue scale, and China national standard for TCM syndrome types criteria. Subjects: Twenty to fifty years old adults by convenient sampling.

按流行病学方法，参照英国Chalder等制订的疲劳量表、美国疾病控制中心1994年制定的CFS诊断标准及按《中药新药临床研究指导原则》中医证候指导原则的要求制定调查表，对香港地区20～50岁的普通公民进行非随机抽样调查。

objective to set up mode of management,prevention and cure on epilepsy among rural population in ningxia by primary medical care system,then extend toward others rural regions.methods doctors in county,countryside and villege level were trained how to screen,diagnose,prevention and treat epilepsy among 140 countrysides and 3,786 thousand rural populations in ningxia.cluster sampling was adopted to screen convulsibility epileptics,to freely treat with pb.

目的 建立宁夏农村地区癫痫的防治和管理有效模式，并逐步向其它农村地区推广。方法采取整群抽样方法，选择宁夏农村地区140个乡，共计378.6万人群。通过对县、乡、村医生的专业培训，筛选惊厥性癫痫患者，采用苯巴比妥单药免费治疗，分别在第3、6、9和12个月对其疗效进行评估。结果培训了172名县、乡、村医生。

Methods Through questionnaires,the annual number of X-ray diagnostic examination of the whole province was investigated,according to it,hospitals were arranged decreasingly into four levels,and proceeded the stratified random sampling on the rations of

阳性率是判断X射线诊断检查应用是否符合合理应用原则的重要指标之一。X射线诊断检查的阳性率应保持在一个合理的水平上，如果阳性率过低，表明无临床意义的X射线诊断检查的应用过多，应当采取措施予以限制。

Method］ In the light of the sampling method in Environmental Testing and Analysis Methods issued by SEPA, the atmospheric environment, water and soil environmental quality were tested for GAP base of Desmodium styracifolium Merr..

方法］参照国家环保局《环境检测分析方法》布点采样，对广金钱草规范化种植基地的大气环境、土壤环境和水源质量进行检测。

In our studies,sludges composting was used as object, fluoranthene was on behalf of PAHs,and methods included dynamic sampling,room analysis,sludges' composting,leaching of soil column,and room culture were employed. The main contents include:the concentration and the distribution of PAHs in municipal sludges in Jiangsu Province,effects of composting on the concentration of PAHs in municipal sludges,the physicochemical properties of water dissolved organic matters in sludges before and after composting,effects of sludges composting and DOM on the desorption-leaching and eco-toxicity of FLT in polluted soil,and primary investigation of mechanism on same phenomena.

本论文以污泥堆肥为原料，以荧蒽(fluoranthene，FLT)为PAH的代表，采用动态取样、室内分析、污泥堆肥、土柱淋滤和室内培养等方法，系统研究了江苏城市污泥中PAHs的含量以及分布模式；堆肥对污泥中PAHs含量的影响；污泥堆肥前后水溶性有机物的理化性质特征变化；污泥堆肥对污染土壤中FLT解吸-淋滤、以及生态毒性的影响，并对有关现象进行了机理探讨。

Methods A randomized cluster sampling was performed to obtain a representative sample of population in Xinjiang Hefeng pastoral area.Blood wag taken from 632 individuals aged 30 and older for measurements of total cholesterol,triglyceride,hish density lipoprotein cholesterolby automatic biochemieal analyzer.The serum levels of low density lipoprotein cholesterolwas calculated according to the formula.

采用整群随机抽样的方法选取新疆和丰县牧区年龄≥30岁的牧民632人为调查对象，其中哈萨克族325人，蒙古族307人；抽取空腹12 h静脉m 3ml，采用日立7600全自动生化分析仪测定血浆总胆固醇、甘油三酯、高密度脂蛋白胆固醇的浓度，并根据公式计算出LDL-C的浓度，对资料进行汇总，并采用t检验、方差分析或协方差分析的方法观察两民族间血浆LDL-C水平的差异，并进一步采用多元逐步同归分析的统计方法研究其影响因素。

Studies the high precision estimation methods of echo frequency, proposes a simplified TLS-ESPRIT method for frequency estimation based on uniform sampling data. For moving platform, such as torpedo, proposes a time fusion algorithm for target status estimation based on multicycle data of single sensor.

c。深入研究了回波信号的高精度频率估计技术，提出了一种基于均匀采样数据的TLS-ESPRIT频率估计算法；针对运动平台，提出了一种单传感器多测量周期目标状态估计的时间融合算法；以炸点预测为例构造了相应的状态模型及算法，计算机仿真验证了融合算法的有效性。

Methods Patients with diabetic foot gangrene lesions who visited to Yanbian University Hospital and Changchun University of TCM from October,2004 to February,2007 and eliminate patients who complicating with to double heart and renal inadequacy,myocardial infarction,nephros duty depletion,asthma,pulmonary infection,advanced stage malignant tumor,et al and DF above grade 3 to deliver surgery,which were divided into treatment group （n=32） and control group （n=27） by random sampling.

将2004年10月～2006年2月，来自延边大学附属医院中西医结合科及延边中西医结合医院的门诊及诊疗区就诊和收治的糖尿病并发糖尿病足的患者，合并重度心、肾功能不全、心肌梗死、肾衰竭、哮喘、肺部感染，恶性肿瘤晚期等排除观察范围；糖尿病足3级以上送至外科就诊，按随机数字表分为针刺治疗组32例和对照治疗组27例。

According to the phytosociological theories and methods of Braun-Blanquet's school, the regional savanna vegetation of the dry-hot valleys of Yuanjiang river had been investigated. Based on the principle of fidelity degree, the typical 110 releves taken from every sampling stands of the dry-hot valleys were sorted up from below to upper into 15 Associations, then into 5 Alliances, 2 Orders and 1 Class. A synoptic classification system of Class-Order-Alliance-Association was established for the purpose to reflect deeply the characteristics of all syntaxa there in the aspect of plant component and their abundance-dominancy, presence, cover coefficient, life form, growth form, and ecological environment, community structure, species types and so on.

采用Braun-Blanquet植物群落学研究的理论与方法，对云南元江中上游干热河谷分布的植被进行考察研究，把各处取得较典型的110个样地记录按确限度的原则由下而上归类成15个群丛、5个群属、2个群目和1个群纲，建立了元江干热河谷萨王纳植被群纲—群目—群属—群丛分类系统综合表和15个群丛表，以全面深入反映全干热河谷植物群落各级分类单位中各植物种类组成的多优度、存在度、盖度系数、生活型和生长型等特征及其群落结构、生态环境和种型类别。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。