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Research on the Testing Methods of Instrumental System in the Marine Magnetic Survey 被引量:1
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作者 边刚 刘雁春 +2 位作者 于波 肖付民 卞光浪 《Marine Science Bulletin》 CAS 2007年第2期1-11,共11页
Testing methods of instrumental system in the marine magnetic survey have been studied in this paper, and the feasibility of each method has been testified by the observed data. The conclusion shows that the method br... Testing methods of instrumental system in the marine magnetic survey have been studied in this paper, and the feasibility of each method has been testified by the observed data. The conclusion shows that the method brought out can effectively eliminate the systematic error caused by the instrumental system, and greatly improve the surveying precision and the reliability of the survey results. 展开更多
关键词 Marine magnetic survey instrumental system testing method
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Competence investigation on insulation testing on electrosurgical instruments and needs analysis of training for Central Sterile Supply Department staff 被引量:1
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作者 Xu WANG Qing ZHANG Yi‑Qin ZHOU 《Journal of Integrative Nursing》 2020年第3期134-137,共4页
Objective:The objective of this article is to investigate the competence of Central Sterile Supply Department(CSSD)staff in insulation testing on electrosurgical instruments,to analyze the needs of training for CSSD s... Objective:The objective of this article is to investigate the competence of Central Sterile Supply Department(CSSD)staff in insulation testing on electrosurgical instruments,to analyze the needs of training for CSSD staff,and also to strengthen the effectiveness of monitoring the insulation testing on electrosurgical instruments for CSSD staff to provide a reference for the nursing safety training.Materials and Methods:A total of 180 CSSD staff from 36 hospitals were enrolled as the research objects and investigated using“self‑assessment questionnaire of the competence in insulation testing on electrosurgical instruments and the needs of training".Results:The overall self‑assessment score of competence in insulation testing on electrosurgical instruments for CSSD staff is 3.10±0.42,including four dimensions which are attitude,system,cognition,and skills with the scores 3.31±0.55,2.80±0.63,2.74±0.68,and 3.03±0.36,respectively.Based on the survey of training needs for CSSD staff,the top three ranked training needs are trace management record of insulation testing on electrosurgical instruments(93.89%),disposal procedures for insulation damage of electrosurgical instruments(92.78%),and adverse events caused by leakage of electrosurgical instruments(80.55%).Conclusion:The competence of insulation testing for CSSD staff is at a low level by overall.The competence of CSSD staff could be improved by analyzing the needs of training,establishing a systematic training system,and taking effective training action,thus ensuring the safety of patients and medical personnel. 展开更多
关键词 Electrosurgical instruments insulation testing COMPETENCE impact factor
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Software Engineering in the Application of Virtual Instrument-Based Dynamics Testing System for UAV 被引量:3
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作者 Jing Huang Jihong Zhu Xiaming Yuan 《通讯和计算机(中英文版)》 2013年第7期926-932,共7页
关键词 动态测试系统 软件工程 虚拟仪器 无人机 LabVIEW 应用 软件开发平台 编程语言
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Secondary analysis of malaria rapid diagnostic tests from rounds 5–8 of WHO product testing with a focus on false-negative results
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作者 Biao Xu Bo Tu +4 位作者 Fang Chu Mohamed Jalloh Jin-Song Mu Jun-Jie Zheng Wei-Wei Chen 《Military Medical Research》 SCIE CSCD 2022年第3期379-381,共3页
Despite the widespread use of malaria rapid diagnostic test(RDT)in clinical practice,there are a lot of challenges.We conducted a secondary analysis of 129 malaria RDT data from rounds 5–8 of the World Health Organiz... Despite the widespread use of malaria rapid diagnostic test(RDT)in clinical practice,there are a lot of challenges.We conducted a secondary analysis of 129 malaria RDT data from rounds 5–8 of the World Health Organization(WHO)product testing summary and discuss the causes of false-negative(FN)results with a focus on low parasite density,improper RDT storage,operation and interpretation,and Plasmodium falciparum with a pfhrp2/3 gene deletion.The results demonstrated that the malaria RDTs currently commercially available might cause FN results in practice. 展开更多
关键词 MALARIA Rapid diagnostic tests False-negative results WHO product testing
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Software Testing Method Based on Model Comparison
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作者 谢晓东 卢炎生 毛澄印 《Journal of Southwest Jiaotong University(English Edition)》 2008年第2期99-108,共10页
A model comparison based software testing method (MCST) is proposed. In this method, the requirements aria programs or software under test are transformed into the ones in the same form, and described by the same mo... A model comparison based software testing method (MCST) is proposed. In this method, the requirements aria programs or software under test are transformed into the ones in the same form, and described by the same model describe language (MDL). Then, the requirements are transformed into a specification model and the programs into an implementation model. Thus, the elements and structures of the two models are compared, and the differences between them are obtained. Based on the diffrences, a test suite is generated. Different MDLs can be chosen for the software under test. The usages of two classical MDLs in MCST, the equivalence classes model and the extended finite state machine (EFSM) model, are described with example applications. The results show that the test suites generated by MCST are more efficient and smaller than some other testing methods, such as the pathcoverage testing method, the object state diagram testing method, etc. 展开更多
关键词 Software testing Test suite generation Model comparison
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Testing System Based on Virtual Instrument for Readout Circuit of Infrared Focal Plane Array
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作者 XUE Lian MENG Li-ya YUAN Xiang-hui 《Semiconductor Photonics and Technology》 CAS 2008年第2期102-106,114,共6页
Readout integrated circuit(ROIC) is one of the most important components for hybrid-integrated infrared focal plane array(IRFPA). And it should be tested to ensure the product yield before bonding. This paper presents... Readout integrated circuit(ROIC) is one of the most important components for hybrid-integrated infrared focal plane array(IRFPA). And it should be tested to ensure the product yield before bonding. This paper presents an on-wafer testing system based on Labview for ROIC of IRFPA. The quantitative measurement can be conducted after determining whether there is row crosstalk or not in this system. This low-cost system has the benefits of easy expansion, upgrading, and flexibility, and it has been employed in the testing of several kinds of IRFPA ROICs to measure the parameters of saturated output voltage, non-uniformity, dark noise and dynamic range, etc. 展开更多
关键词 virtual instrument infrared focal plane array ROIC testing
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Inspection and testing stressed in standards comparison and compliance action
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《China Standardization》 2019年第3期7-7,共1页
The symposium on inspection and testing bodies in the special action on standards comparison and complianee of 10,000 enterprises of 1,000 sectors in 100 cities was held in Beijing on April 16,which was attended by mo... The symposium on inspection and testing bodies in the special action on standards comparison and complianee of 10,000 enterprises of 1,000 sectors in 100 cities was held in Beijing on April 16,which was attended by more than 70 representatives from SAMR and inspection and testing bodies. 展开更多
关键词 INSPECTION testing STANDARDS comparison
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A SAS Macro for Testing Differences among Three or More Independent Groups Using Kruskal-Wallis and Nemenyi Tests 被引量:3
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作者 刘跃伟 陈卫红 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2012年第1期130-134,共5页
As a nonparametric method,the Kruskal-Wallis test is widely used to compare three or more independent groups when an ordinal or interval level of data is available,especially when the assump-tions of analysis of varia... As a nonparametric method,the Kruskal-Wallis test is widely used to compare three or more independent groups when an ordinal or interval level of data is available,especially when the assump-tions of analysis of variance (ANOVA) are not met.If the Kruskal-Wallis statistic is statistically signifi-cant,Nemenyi test is an alternative method for further pairwise multiple comparisons to locate the source of significance.Unfortunately,most popular statistical packages do not integrate the Nemenyi test,which is not easy to be calculated by hand.We described the theory and applications of the Kruskal-Wallis and Nemenyi tests,and presented a flexible SAS macro to implement the two tests.The SAS macro was demonstrated by two examples from our cohort study in occupational epidemiology.It provides a useful tool for SAS users to test the differences among three or more independent groups using a nonparametric method. 展开更多
关键词 Kruskal-Wallis Nemenyi multiple comparisons tests SAS macro
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Implement of FLEX and POCSAG Pager Testing System 被引量:2
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作者 Luo Kun Huang Ji-wu +1 位作者 Yuan Lan-ying Wang Lai-yun 《Wuhan University Journal of Natural Sciences》 EI CAS 1999年第3期322-325,共4页
The synthesized signal testing equipment is widely used in the field of wireless communication. A new design method of FLEX and POCSAG page testing instrument is introduced, which is based on MCU encoder, FPGA control... The synthesized signal testing equipment is widely used in the field of wireless communication. A new design method of FLEX and POCSAG page testing instrument is introduced, which is based on MCU encoder, FPGA control and digital RF. The technology of DDS and PLL is also presented. 展开更多
关键词 pager testing instrument FLEX FPGA PLL DDS
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Delay Trigger in the Application of Network Testing System 被引量:1
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作者 马敏 严浩 夏侯士戟 《Journal of Donghua University(English Edition)》 EI CAS 2015年第1期132-135,共4页
The researchers who study the local area network( LAN) eXtension for instrumentation( LXI) instrument are pursuing instrument's high-precision synchronization. In the paper,three synchronization modes were discuss... The researchers who study the local area network( LAN) eXtension for instrumentation( LXI) instrument are pursuing instrument's high-precision synchronization. In the paper,three synchronization modes were discussed which were clock synchronization, trigger synchronization, and response synchronization. Synchronous process between LXI instruments was analyzed and each time factor affecting the synchronization accuracy was discussed. On the basis of the analysis,it can be found that delay trigger plays an important role in the network testing system's synchronization. Delay trigger can produce an additional time interval to correct the difference of each LXI instrument's response time. Then,a method to realize the delay trigger was introduced. Delay time can be adjustable according to the actual demand. Finally,synchronization accuracy of network testing system can reach nanoseconds. 展开更多
关键词 LXI instrument synchronization accuracy network testing system delay trigger
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The Nursee-Nurse Collaboration Behavior Scale:Development and psychometric testing 被引量:1
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作者 Chunli Liao Ying Qin +1 位作者 Yue He Yu Guo 《International Journal of Nursing Sciences》 2015年第4期334-339,共6页
Objective:To develop and test the reliability and validity of a new instrument,the Nurse eNurse Collaboration Behavior Scale(NNCBS).Background:The importance of cooperation among nurses is widely acknowledged,but is a... Objective:To develop and test the reliability and validity of a new instrument,the Nurse eNurse Collaboration Behavior Scale(NNCBS).Background:The importance of cooperation among nurses is widely acknowledged,but is a lack of scientific studies regarding the behaviorial interactions associated with nurse enurse relationships throughout the process of patient-centered care.Therefore,there is a great need to develop a reliable scale to measure nurseenurse collaboration behavior,which is what we have generated in this study.Methods:The 46-item Nursee-Nurse Collaboration Scale was developed using a process of item design,refinement,and testing for both reliability and validity.In 2014,the 202 nurses from the International Department of Services participated in this pilot study.Cronbach's a coefficients and testeretest reliability coefficients were calculated in order to evaluate this new scale's internal consistency and stability.Exploratory factor analysis was calculated using a principal factor method with promax rotation to evaluate the scale's validity.Results:Exploratory factor analysis yielded four factors and 23 items.The overall Cronbach's a coefficient of the scale was 0.929.The item-total correlation values were overall high,ranging from 0.427 to 0.751.For the entire scale,the r values of the testeretest reliability correlations were 0.764.Conclusion:The NNCB Scale developed in this study demonstrates acceptable reliability and validity for measuring the level of NNCB.Its implementration on a broader scale would at the very least guide and promote collaborative relationships between nurses involved in patient care.It should be noted that the scale requires further psychometric testing using a larger sample size of nurses who also represent a wider diversity of backgrounds,as well as researchers who are encouraged to improve the instrument. 展开更多
关键词 instrument development Nursee-Nurse Collaboration Scale Psychometric testing
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Comparing Data Mining Techniques in HIV Testing Prediction
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作者 Tesfay Gidey Hailu 《Intelligent Information Management》 2015年第3期153-180,共28页
Introduction: The present work compared the prediction power of the different data mining techniques used to develop the HIV testing prediction model. Four popular data mining algorithms (Decision tree, Naive Bayes, N... Introduction: The present work compared the prediction power of the different data mining techniques used to develop the HIV testing prediction model. Four popular data mining algorithms (Decision tree, Naive Bayes, Neural network, logistic regression) were used to build the model that predicts whether an individual was being tested for HIV among adults in Ethiopia using EDHS 2011. The final experimentation results indicated that the decision tree (random tree algorithm) performed the best with accuracy of 96%, the decision tree induction method (J48) came out to be the second best with a classification accuracy of 79%, followed by neural network (78%). Logistic regression has also achieved the least classification accuracy of 74%. Objectives: The objective of this study is to compare the prediction power of the different data mining techniques used to develop the HIV testing prediction model. Methods: Cross-Industry Standard Process for Data Mining (CRISP-DM) was used to predict the model for HIV testing and explore association rules between HIV testing and the selected attributes. Data preprocessing was performed and missing values for the categorical variable were replaced by the modal value of the variable. Different data mining techniques were used to build the predictive model. Results: The target dataset contained 30,625 study participants. Out of which 16,515 (54%) participants were women while the rest 14,110 (46%) were men. The age of the participants in the dataset ranged from 15 to 59 years old with modal age of 15 - 19 years old. Among the study participants, 17,719 (58%) have never been tested for HIV while the rest 12,906 (42%) had been tested. Residence, educational level, wealth index, HIV related stigma, knowledge related to HIV, region, age group, risky sexual behaviour attributes, knowledge about where to test for HIV and knowledge on family planning through mass media were found to be predictors for HIV testing. Conclusion and Recommendation: The results obtained from this research reveal that data mining is crucial in extracting relevant information for the effective utilization of HIV testing services which has clinical, community and public health importance at all levels. It is vital to apply different data mining techniques for the same settings and compare the model performances (based on accuracy, sensitivity, and specificity) with each other. Furthermore, this study would also invite interested researchers to explore more on the application of data mining techniques in healthcare industry or else in related and similar settings for the future. 展开更多
关键词 Data MINING comparison PREDICTIVE MODELING HIV testing Ethiopia
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Proficiency Testing in Analysis of Wine Products
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作者 Jarmila Lastincova Eubica Pospisilova Ernest Beinrohr 《Journal of Chemistry and Chemical Engineering》 2013年第8期774-778,共5页
The quality variety wines which are produced in specified regions of Slovakia are mostly watched category of wine in European Union. Quality of the measurement for appropriate parameter in wine sample is given by unce... The quality variety wines which are produced in specified regions of Slovakia are mostly watched category of wine in European Union. Quality of the measurement for appropriate parameter in wine sample is given by uncertainty. Therefore, protocol of analysis has to have an uncertainty of measurement and should be made in accredited laboratory. In Slovakia, there are six wine growing regions (Tokaj, east Slovakia region, south Slovakia region, middle Slovakia region, Nitriansky region and Little-Carpathian region) where the quality wines with protected designation of origin are produced. Central Controlling and Testing Institute in Agriculture in Bratislava is a state organization, which has an accredited laboratory for testing wine products before introduction into the market. This article presents the results of the authors' measurements in proficiency testing FAPAS (food analysis performance assessment scheme) which were organized by Central Science Laboratory in York (England) in 2011. The authors add also interlaboratory comparison in 2012 between Slovak accredited laboratories. The results show very good agreement. Quality control in the wine sector presents very important feature in the market, therefore, using certified reference materials and checking the accredited laboratories with interlaboratory comparisons is very helpful. Testing of wine in the authors' laboratory is performed by EN ISO/IEC: 17025. The results show that z-score lies not outside the range ±2 and this is a chance that the authors' results are actually acceptable. 展开更多
关键词 Wine analysis comparison proficiency tests.
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Design and Testing of Biochar Stoves
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作者 Rajaram Swaminathan Hileni Amupolo 《Open Journal of Applied Sciences》 2014年第14期567-572,共6页
Biochar is a solid material obtained from the carbonization of biomass. Biochar is used on agricultural lands as a soil amendment to improve the fertility of the soils. Currently the most common method of producing bi... Biochar is a solid material obtained from the carbonization of biomass. Biochar is used on agricultural lands as a soil amendment to improve the fertility of the soils. Currently the most common method of producing biochar is through biochar stoves. There are two basic stove operations in the production of biochar. The first type of stove produces biochar by direct combustion of biomass. Here biomass is burnt inside a chamber in an oxygen limited environment. The resulting residue is the bio-char. The second type involves burning the biomass in one chamber and housing the biomass to be charred in the annular portion of an outer chamber. Heat is transferred from the burning fuel on the inner chamber to the material to be charred in the outer chamber. While the process of biochar production in these stoves is known, the basic principles of the stove design are not readily available. The design methodology for both the types was developed from first principles. Prototypes of both types were constructed based on the design developed and tested. The paper lists the basic principles in the design of biochar stoves and the test results. 展开更多
关键词 BIOCHAR STOVE TYPES Design PRINCIPLES TEST resultS
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Analysis of Toxicological Test Results of 580 Detergents
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作者 Li Guangxian Liang Junjie +3 位作者 Jiang yi Li min Pang Zengxiong Liu Xiangmei 《China Detergent & Cosmetics》 CAS 2023年第2期26-30,共5页
To evaluate the safety of detergents,the toxicological test results of 580 collected detergents were analyzed.The results showed that,in the acute oral toxicity test,94.4%and 5.6%of the samples were classified as non-... To evaluate the safety of detergents,the toxicological test results of 580 collected detergents were analyzed.The results showed that,in the acute oral toxicity test,94.4%and 5.6%of the samples were classified as non-toxic and toxic respectively.In skin irritation test,95.1%of the samples were mild irritation or below,and 4.9%were moderate irritation or above.In the vaginal mucosa irritation test,79.0%of the samples were very mild irritation or below,while 21.0%were mild irritation or above.In the acute inhalation toxicity test,the proportion of the samples classified as actually non-toxic and toxic were 87.9%and 12.1%respectively.In the eye irritation test,95.7%of the samples belonged to mild irritation or below,and 4.3%of the samples belonged to moderate irritation or above.The products at risk in category A,B and C products account for 6.3%,7.7%and 14.2%respectively.Of the 580 tested samples,90.9%were relatively safe,while 9.1%were at risk.These data showed that most of the tested samples meet the safety requirements for use. 展开更多
关键词 DETERGENTS SAFETY toxicological test results analysis
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龙燕1号燕麦新品种的选育
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作者 王建丽 庄煦 +6 位作者 牟林林 韩微波 张冬梅 尤佳 邸桂俐 王晓龙 申忠宝 《黑龙江畜牧兽医》 CAS 北大核心 2024年第12期89-93,100,共6页
为了选育高产、优质、适应东北三省及内蒙古地区种植的燕麦新品种,试验于2015年采用母本边锋和父本牧乐思进行种间杂交,并通过系统衍生法进行选育,对选育得到的燕麦新品种进行品种比较试验、区域试验及生产试验。结果表明:经选育得到龙... 为了选育高产、优质、适应东北三省及内蒙古地区种植的燕麦新品种,试验于2015年采用母本边锋和父本牧乐思进行种间杂交,并通过系统衍生法进行选育,对选育得到的燕麦新品种进行品种比较试验、区域试验及生产试验。结果表明:经选育得到龙燕1号燕麦,其2019—2020年两年平均干草产量及种子产量分别为15 100.0 kg/hm^(2)、4 760.3 kg/hm^(2),较对照牧乐思、白燕7号分别增产16.84%、11.71%和14.96%、11.11%,差异显著(P<0.05);两年(2022,2023年)多点(齐齐哈尔市、哈尔滨市、双鸭山市、绥化市)的平均干草产量龙燕1号最高,达9 857.14 kg/hm^(2),分别比对照青海444、青引2号增产18.11%、45.30%,差异极显著(P<0.01);在4个试验区哈尔滨市、兰西县、杜蒙县、肇东市的两年平均干草产量分别达到11 812.73 kg/hm^(2)、9 602.57 kg/hm^(2)、12 263.64 kg/hm^(2)和11 961.97 kg/hm^(2),比对照白燕7号分别增产11.57%、11.92%、12.60%、11.24%。说明饲用燕麦新品种龙燕1号燕麦相较亲本具有更好的生产性能,在东北三省均可种植。 展开更多
关键词 龙燕1号燕麦 新品种 选育 生产试验 品种比较试验 区域试验
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水平受荷桩“p-y+M-θ”分析方法
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作者 王立忠 赖踊卿 +1 位作者 洪义 张友虎 《岩土工程学报》 EI CAS CSCD 北大核心 2024年第5期905-918,共14页
中国近海海上风电机组开发建设中,大直径单桩基础形式使用占比超70%。现行p-y曲线设计方法主要适用于小直径柔性桩,对大直径单桩侧向及桩底受荷描述能力不足,导致其严重低估刚柔性桩和刚性桩(分别常用于中国和欧洲的近海风电工程)的变... 中国近海海上风电机组开发建设中,大直径单桩基础形式使用占比超70%。现行p-y曲线设计方法主要适用于小直径柔性桩,对大直径单桩侧向及桩底受荷描述能力不足,导致其严重低估刚柔性桩和刚性桩(分别常用于中国和欧洲的近海风电工程)的变形和承载能力,过于保守的设计给海上风电降本带来挑战。为此建立了能以统一的方式预测柔性、刚柔性和刚性单桩水平单调受荷响应的“p-y+M-θ”模型,并将该模型推广到循环荷载下单桩的响应分析。通过与相关试验结果比对发现,“p-y+M-θ”模型能较为准确地预测桩基水平加载响应。力图为水平受荷单桩工程设计提供简洁而可行的响应分析方法。 展开更多
关键词 软黏土 “p-y+M-θ”模型 水平受荷桩循环加载 试验结果对比
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《兽药比对试验要求》修订变化与意义
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作者 陆连寿 冯华兵 +7 位作者 杨大伟 梁先明 苏富琴 冯克清 安洪泽 杜雨 汪霞 卢旺 《中国兽药杂志》 2024年第8期47-51,共5页
开展兽药比对试验是兽药产品批准文号管理的重要政策之一。为科学规范兽药比对试验目录产品的批准文号申请,农业农村部畜牧兽医局在2016年发布实施的《兽药比对试验要求》基础上,结合国内兽药比对研究现状,2024年修订发布了《兽药比对... 开展兽药比对试验是兽药产品批准文号管理的重要政策之一。为科学规范兽药比对试验目录产品的批准文号申请,农业农村部畜牧兽医局在2016年发布实施的《兽药比对试验要求》基础上,结合国内兽药比对研究现状,2024年修订发布了《兽药比对试验要求》。本文详细阐述了兽药比对试验要求的修订背景、主要变化和修订意义,旨在加强研发单位或相关临床试验机构对该项政策的理解,并对开展兽药比对试验提供指导和帮助。 展开更多
关键词 兽药 比对试验要求 主要变化 修订意义
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兽药产品批准文号药学研究资料常见问题浅析
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作者 宫爱艳 郝智慧 +1 位作者 冯克清 安洪泽 《中国兽药杂志》 2024年第7期20-25,共6页
本文通过对已审药学资料的审查分析,从产品信息、处方、工艺、质量标准、稳定性研究等方面对药学申报资料的常见问题加以分析总结并提出了针对性建议,旨在规范药学研究资料编写,以期对兽药产品批准文号申请有所帮助。
关键词 兽药产品批准文号 比对试验 药学研究 问题
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集成电路测试新工科人才产教融合培养模式探索与实践
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作者 潘成亮 夏豪杰 +3 位作者 黄亮 魏永清 张连生 侯毅 《高教学刊》 2024年第20期51-54,共4页
集成电路测试是集成电路设计制造产业中的重要环节。针对目前国内集成电路测试行业专门技术人才紧缺的现实需求,合肥工业大学联合国内外集成电路产业知名企业,从课程教学内容与教学方法、实验平台建设与实验设计、创新能力培养与学科竞... 集成电路测试是集成电路设计制造产业中的重要环节。针对目前国内集成电路测试行业专门技术人才紧缺的现实需求,合肥工业大学联合国内外集成电路产业知名企业,从课程教学内容与教学方法、实验平台建设与实验设计、创新能力培养与学科竞赛等环节入手,在仪器类专业探索现阶段适合于集成电路测试新工科人才培养的校企合作办学模式。近年来,在集成电路测试课程体系完善、实验平台建设、实践环节培养等方面均取得较好的成果,为新工科人才产教融合培养提供实践经验和参考案例。 展开更多
关键词 集成电路测试 新工科 仪器类专业 产教融合 创新能力
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