免疫透射比浊法测定视黄醇结合蛋白的技术性能评价

目的:对免疫透射比浊法测定视黄醇结合蛋白进行技术性能评价。方法:根据美国临床实验室标准化委员会评价方案,对免疫透射比浊法测定视黄醇结合蛋白的精密度、线性范围、干扰因素和准确度加以评价。结果:正常值和高值的批内CV%为2.3%和1.7%,批间CV%为3.9%和3.1%,日间CV%为4.5%和3.8%,总CV%为5.5%和4.5%;线性上限可达120 mg/L;胆红素浓度低于442 umol/L和血红蛋白浓度低于5 g/L时对测定无显著干扰(P>0.05);平均回收率为99.2%。结论:免疫透射比浊法测定视黄醇结合蛋白符合临床检验的要求,加上自动化程度高,操作简便,检测速度快,值得临床推广。

酶循环法定量检测血清同型半胱氨酸的技术性能评价

目的:评价酶循环法(ECM)定量检测血清同型半胱氨酸(Hcy)的技术性能。方法:参考NCCLS评价方案,评价ECM定量检测血清Hcy的准确度、精密度、线性范围和干扰因素。结果:ECM定量检测低、高水平定值质控血清Hcy的相对偏差分别为2.52%和4.28%;正常值和高值血清测定的批内变异系数(CV)和总CV分别为1.63%~1.58%和4.65%~3.88%;3.12~49.98 umol/L范围内测定的线性相关系数(r^(2))达到0.9971;胆红素(20 mg/dL)、乳糜(1000 mg/dL)和维生素C(10 mg/dL)对该检测方法无显著性干扰(P>0.05)。结论:酶循环法不仅实用性高,而且可靠性强,因此在各级医疗机构的检验科均可普及使用。

己糖激酶法测定血清葡萄糖的技术性能评价

目的:对HK法测定血清葡萄糖的技术性能进行评价。方法:采用HK法进行精密度试验、回收试验、线性试验、干扰试验,并与GOD-POD偶联法进行比较。结果:HK法批内CV为1.28%,批间CV为1.91%,日间CV为2.20%,总CV为2.74%;平均回收率为99.12%;线性上限可达30mmol/L;抗胆红素和维生素C干扰的能力均较强;没有发现高浓度的钩状效应;与GOD-POD偶联法的测定结果无显著性差异(P>0.05),有良好的相关性(Y=1.0192X-0.3135,r=0.9882)。结论:HK法是临床测定血清葡萄糖较理想的方法。

免疫增强透射比浊法定量检测降钙素原的技术性能评价

目的:评价免疫增强透射比浊法定量检测血清降钙素原(PCT)的技术性能。方法:按照NCCLS标准化的评价方案,应用全自动生化分析仪评价免疫增强透射比浊法定量检测PCT的准确度、精密度、干扰因素和线性范围。结果:平均回收率为97.4%;0.15ug/L(正常值)和17.85ug/L(高值)的批内CV均<4.5%,批间CV均<8.0%;类风湿因子浓度在200IU/m L以下、血红蛋白浓度在4.0g/L以下、三酰甘油浓度在10.0mmol/L以下和胆红素浓度在340umol/L以下时对PCT的定量检测均无显著性干扰(P>0.05);线性范围为0.00-80.00ug/L。结论:免疫增强透射比浊法具有自动化程度高、检测速度快、成本低、安全的优点,而且各项技术性能优良,因此具有较高的临床推广应用价值。

反应吸附强化焦炉煤气蒸汽重整制氢技术评价

以实验研究结果为基础,建立了反应吸附强化焦炉煤气水蒸汽重整制氢(ReSER-COG)工艺流程,并进行了技术性能评价计算。计算过程采用化工模拟软件Aspen Plus,基于不同反应温度、水碳比、钙碳比等工艺操作参数,对各个操作单元进行物料平衡和能量平衡计算,并考察制氢性能指标产氢率和COG能量转化效率受制氢工艺操作参数影响的敏感度分析,得到最优操作参数范围。分析结果表明:ReSER-COG制氢工艺在反应温度600℃,水碳物质的量比4,钙碳物质的量比2.75,常压反应的条件下,1m^3COG可获得最大产氢气率为1.8m^3,且能量转化效率达到最高76.3%。与现有的COG制氢技术相比,ReSERCOG制氢技术在同样条件下,可以得到较高的产氢率和COG能量转化效率,具备较强的技术优势。

SEW控制和净化猪场疫病的有效技术途径

本文分析了国际国内猪群健康受疫病威胁的现状，在此基础上，阐述了用于净化或控制猪群疫病的新技术体系——早期断奶隔离饲养技术，包括SEW的原理，SEW的技术内容和要点，SEW的生产工艺，SEW的技术性评价和经济性分析，报道了作者最近研究实例，通过实施SEW，成功地从特定病原（PRRS、伪狂犬病和喘气病）阳性老猪场构建出阴性新猪群，75日龄前日增重提高50%以上，指出SEW是净化或控制猪场疫病的经济有效的技术途径，是健康养猪产业化发展的战略选择。

制造业绿色发展战略评价

制造业在将资源转变为产品的过程中及产品使用和处理过程中 ,产生的废弃物对环境的影响比较严重 ,可持续发展能力不强 .企业为了生存和发展 ,适应内外环境变化 ,赢得竞争优势的关键在于制定一个适合制造业发展的绿色发展战略 .本文在阐述绿色发展战略评价的目的和内容的基础上 ,建立了将制造业的绿色发展战略的技术评价及经济评价相结合的评价理论体系、程序和方法 .

电网项目后评价体系研究及应用

基于逻辑框架法和层次分析法构建电网投资项目后评价体系,提出33项定量化的后评价指标。通过电网建设项目后评价来真实反映电网项目的技术性能和投资效益,从而提高电网建设决策和管理的科学性。以台州220 kV童燎输变电工程为例,验证了评价体系的有效性。

基于TPS改性沥青应力吸收层材料性能研究

为减少半刚性基层以及旧水泥路面加铺沥青层后出现的反射裂缝,常铺筑应力吸收层。该文采用TPS高黏改性沥青,利用Superpave方法进行配合比设计,并对其改性后的沥青高温、低温以及抗疲劳性能进行研究。针对应力吸收层的受力特点,通过比较不同材料的抗拉应变能力、抗弯拉强度以及常温和高温条件下的抗剪强度。通过试验结果分析认为TPS改性沥青混合料作为应力吸收层具有一定的优势。

Research of Comprehensive Evaluation of Agricultural Land Suitability in Typical Area of Huanghuaihai Plain based on GIS

The paper aims to study agricultural land suitability in typical agricultural area in Huanghuaihai plain by the comprehensive evaluation of natural factors and environmental conditions of agricultural land with Liaocheng area in Shangdong Province in the center of Huanghuaihai plain as a case.The results suggested that the land quality in Liaocheng was above the average and accorded with the local practical situation.The authors validated the scientificity of agricultural land suitability study by using GIS technology and proposed some suggestions on analysis results.

STUDY ON MEASURES OF FAULT TOLERANCE FOR DISTRIBUTED SYSTEM

Fault tolerant ability is an important aspect for overall evaluation of distributed system(DS). This paper discusses three measures for the evaluation: node/edge connectivity, number of spanning trees and synthetic connectivity. A numerical example for illustration and analysis is given, and the synthetic connectivity measure presented by this paper is proved to be rational and satisfactory.

Non-collinear nonlinear properties of steel and LY12 aluminum alloy

The sensitivity of collinear nonlinear nondestructive testing technique based on harmonic detection is high,but the results are vulnerable to interference from other nonlinear of experiment sources,which leads to this technology limited in industrial applications.To solve this problem,a non-collinear nonlinear ultrasonic testing experimental system is established based on non-collinear beam mixing technology.The non-collinear nonlinear response is observed in the steel and LY12 aluminum alloy.The results show that:1 Based on the benefits of space selection,mode conversion,frequency and steerable optional of non-collinear beam mixing technology,the interference of system nonlinear effects can be suppressed effectively;2 Mode conversion and beam mixing are present in steel and LY12 aluminum alloy,and the non-collinear non-linear response of LY12 aluminum alloy is stronger than steel and the measurement results are more obvious;3 The technology has the feasibility to evaluate the uniformity of material internal.

Evaluation of microstructure and mechanical properties of Mg-xCe-0.5Zn alloys by nano-indentation

The microstructure and mechanical properties of Mg-xCe-0.5Zn （x=0.5, 1.5, 2.5, molar fraction, %） alloys were examined using a nano-indentation technique. The alloys were fabricated using a vacuum induction melting method under an argon atmosphere The microstruetures of Mg-xCe-0.5Zn alloys mainly consist ofa-Mg and eutectic Mg12Ce phase. The volume fraction and size of the eutectic Mgl2Ce phase increase with increasing Ce contents. Nano-indentation test results show that the indentation hardness and elastic modulus of the eutectic Mg12Ce phase are higher than those of the a-Mg matrix. In addition, the mean indentation hardness and elastic modulus of the Mg-xCe-0.5Zn alloys increase with the Ce addition amount increasing.

A VV&A evaluation system based on hierarchical evaluation

Evaluation is the major activity of performing Verification, Validation and Accreditation (VV&A) of a simulation system. Unfortunately, there is a lack of reasonable and operable evaluation methods. Moreover, there are other problems to address in VV&A evaluation, such as index definition, conclusion analysis, etc. In this paper, a VV&A evaluation system is introduced to try to resolve these problems. The system is based on a method called hierarchical evaluation, and it uses a good combination of evaluation processes and indexes. First, a thorough analysis of the VV&A evaluation’s essentials and principles are given, then the uncertainty of the evaluation results caused by various analysis of the evaluators is pointed out, then a hierarchical evaluation mechanism based on evaluator weight and evaluation hierarchy is brought forward, and finally a comprehensive VV&A evaluation system with evaluation flow processing, index management and hierarchical evaluation fulfillment is established. The system gives good consideration to ease of operation, reasonableness of evaluation conclusion, and the ability to comprehensively resolve VV&A problems. Since VV&A is attracting more and more recognition, it is meaningful to provide a good system for implementing credible simulation systems. It is hoped that this VV&A evaluation will provide a good way.

Assessment of Habitat Suitability in the Upper Reaches of the Min River in China

HabRat richness influences and even determines biological diversity. Plant habitat suitability assessment can provide technical guidance and information support for ecological restoration. Thirteen factors in three categories of terrain, meteorology and soil were chosen to build a habitat suitability assessment index framework in the Upper Reaches of the Min River, based on the local natural environment and the actual influencing factors of vegetative growth. Combined with the Analytic Hierarchy Process （AHP） and entropy method, which were used to calculate weights of indexes, habitat suitability was studied by using a multi-objective linear weighting model and geographic information systems （GIS） spatial analysis techniques. The assessment results are as follows： Altitude, soil stability, aspect and slope have more important effects on plant habitat suitability in the Upper Reaches of the Min River, and their weights are o.311, 0.260, o.198 and o.125, respectively. Suitable and sub-suitable habitats cover 4431.8o km2 and 6171.12 km2, respectively; most of which are distributed along both sides of rivers and have higher suitability. Unsuitable habitats cover the largest area （6679.76 km2）, accounting for 29.83% of the whole area; and the worst unsuitable habitats are 5107.23 km2 （22.81%）; they account for more than half of the study area. These results indicate that the plant habitat in the Upper Reaches of the Min River is poor and ecological restoration is both urgent and difficult. Therefore, based on the principle of taking measures suitable to the habitat in ecological restoration projects, ecological and engineering measures should be combined to have better effects, while increasing the strength of ecological protection.

Applying real time seismic monitoring technology for slope stability assessment—An Indian opencast coal mine perspective

This paper outlines the results obtained from real time microseismic monitoring of an opencast coal mine in South India.The objective of the study is to investigate the stress changes within the rockmass along the slope due to underground mine development operation and their impact on the stability of the highwall slope.The installed microseismic systems recorded the seismic triggerings down toà2 moment magnitude.In general,most of the events recorded during the monitoring period are weak in seismic energy.The study adopts a simple and more reliable tool to characterize the seismically active zone for assessing the stability of the highwall in real time.The impact of underground working on the slope is studied on the basis of the seismic event impact contours and seismic clusters.During the monitoring period,it is observed that the intensity of the overall microseismic activity along the slope due to the mine development operations did not cause any adverse impact on the highwall stability.

Influence of Conative Characteristics on Special Olympics Athletes and Unified Partners＇ Success in Football

The research was conducted in order to determine influence of conative characteristics on the criterion variables in Special Olympics athletes and partners in football. For this purpose, 80 athletes and partners engaged in football were tested. For the assessment of conative characteristics, the measurement instrument CON6 was selected by which the following conative regulators were evaluated： activity regulator, organ function regulator, defense reaction regulator, attack reaction regulator, system for coordination of regulatory functions, system for integration of regulatory functions, and system for excitation and inhibition. To assess success in a football game, the following variables were used： evaluation of the effectiveness of the techniques, evaluation of the performance effectiveness in the offensive phase, evaluation of the performance effectiveness in the defensive phase, evaluation of individual creativity during the game, team responsibility evaluation, engagement evaluation, behavior evaluation, general evaluation of success in the game. All the data in this research were analyzed at the Multidisciplinary Research Center, Faculty of Sport and Physical Education, University of Pristina, by the system of data processing programs DRSOFT developed by D. Popovi~ and K. Momirovi~. The algorithms and programs implemented within this thesis have been fully presented and the results of the programs have been analyzed.

Chemical Contamination and Radiological Risk Assessment of Water Sources in Richards Bay

South Africa is pronounced a dry country. Though KwaZulu-Natal has a higher rain fall than most part of the country, it has recorded cases of austere droughts. The present study was aimed at examining the quality of water within Richards Bay precinct in relation to South African target water quality range （TWQR）. Fifty water samples were collected from five water sources （effluent, stream, Mzingazi River, Indian Ocean and Esikawini drinking tap water） and analyzed using ICP-MS technique to determine the concentrations of some traced metals i.e., Fe, Cu, T1, Zn, Pb, Cr, and Ni. The main impurities were found to be Cd, Mn and As with concentrations of 2.21 × 10^0mg. l-1, 7.19 × 10-1mg.l-1and 2.72 ×10-3mg. 1-1 respectively. The surface gross alpha contamination of mineral stores within the facilities ranges from 1.00 × 10-4 ± 1.5 × 10-2 Bq.cm-2 to 1.45× 10-2 ±4.20 ×10-3Bq.cm-2 with a mean concentration of 1.15 × 10-2 ±1.36 ×10-2Bq.cm-2while the gross beta contamination ranges from 1.00 ×10-3 ± 1.14 × 10-ZBq, cm-2 to 4.15 × 10-2 ± 2.17 × 10-2Bq. cm-2 with a mean concentration of 2.15 ×10-2 ±1.80×10-2Bq. cm-2. The result indicated that the water quality was acceptable.

Experimental Evaluation of Rogowski Coil Performance for Locating PD in Energized Overhead Covered-Conductor Feeder

An experimental analysis is performed to evaluate Rogowski coil performance for PD （partial discharge） location on overhead CC （covered-conductor） distribution lines. The measuring set-up is arranged in high voltage laboratory. A multi-end measuring method is chosen as a technique to locate PD source point on the line. A power transformer is used to energize one end of the CC line by the AC voltage source. The performance of Rogowski-coil is tested in noisy environment. The tests are carried out conceming different measurement conditions such as off-line and on-line PD measuring systems. The results obtained from the laboratory measurements confirm the capability of the Rogowski-coil in order to measure and locate the high frequency PD source on the CC line in consistent with energizing AC source. Chirp detector is used as a signal-processing tool in order to extract the PD signals and then apply the locator algorithm.