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关键词： 木材检验技术   森林资源管理   作用  

摘要： 木材检验技术是买卖市场交易、企业核算运营状况、市场信息反馈、林业部门了解市场状况、保护市场正常经营和森林资源、保证中国林业市场有序可持续经营的重要工具。本文结合木材检验工作的实际情况,探讨了木材检验技术在森林资源管理的作用。

关键词： sample shifting technique (SST)   load taxonomy   signature analysis (SA)   load signature   Hierarchical clustering   classification   cluster   load monitoring   feature extraction   load trajectory  

摘要： This paper illustrates an improved method of classification of electrical appliances, particularly for domestic loads, to construct load taxonomy on the basis of their signature analysis. Each electrical load is characterized by its own distinct signature and hence load signature analysis is useful in monitoring the health of the equipment, power quality, in determining individual energy usage etc. type of services. On the other hand, load taxonomy classifies these loads in several clusters on the basis of some features extracted from their signatures. In traditional methods of construction of load taxonomy, different signature patterns based on power metrics, V-I trajectories, Eigen vectors, etc. In this proposed method, with the adoption of sample shifting technique the required number of feature extraction is reduced to a lower value to find out various signature patterns than those are required in traditional load taxonomies. Moreover, a better taxonomy, having well separated groups of loads is achieved with lower number of extracted features.

关键词： Decision theory   Effect size   Optimal classification   Prior probability  

摘要： Many Bayes factors have been proposed for comparing population means in two-sample (independent samples) studies. Recently, Wang and Liu presented an "objective" Bayes factor (BF) as an alternative to a "subjective" one presented by Gonen et al. Their report was evidently intended to show the superiority of their BF based on "undesirable behavior" of the latter. A wonderful aspect of Bayesian models is that they provide an opportunity to "lay all cards on the table." What distinguishes the various BFs in the two-sample problem is the choice of priors (cards) for the model parameters. This article discusses desiderata of BFs that have been proposed, and proposes a new criterion to compare BFs, no matter whether subjectively or objectively determined. A BF may be preferred if it correctly classifies the data as coming from the correct model most often. The criterion is based on a famous result in classification theory to minimize the total probability of misclassification. This criterion is objective, easily verified by simulation, shows clearly the effects (positive or negative) of assuming particular priors, provides new insights into the appropriateness of BFs in general, and provides a new answer to the question, "Which BF is best?"

关键词： 卫生理化检验   疾病预防控制   作用  

摘要： 目的对卫生理化检验在疾病预防控制中的作用进行研究。方法选取该地区51例不同疾病患者作为研究对象,于2016年6月在该地区开展卫生理化检验工作,对比2015年5月—2016年5月与2016年6月—2017年6月疾病有效控制时间、公众满意度情况。结果采取卫生理化检验措施之后,疾病有效控制时间明显缩短,患者满意度评分明显提高。结论卫生理化检验在疾病预防控制中作用显著,值得临床推广。

关键词： 生化检验   肾上腺皮质病   临床诊断   有效率  

摘要： 目的:探讨生化检验在肾上腺皮质疾病诊断中的临床效果。方法:选择2016年11月～2017年11月某院收治的84例肾上腺皮质疾病患者作为研究对象,并且按照随机原则平均分成A、B两组,每组42例。其中,A组应用常规检验方法,B组应用生化检验方法,对比两组患者的临床诊断有效率。结果:经过检验后,B组相较于A组,临床诊断有效率明显更高,组间差异显著,具有统计学意义(P<0.05)。结论:在肾上腺皮质疾病诊断中应用生化检验诊断有效率较高,具有良好的效果,值得在临床诊断中大力推广和应用。

关键词： 妊娠期糖尿病   临床检验   糖化血红蛋白  

摘要： 目的探讨在妊娠期糖尿病检验中应用糖化血红蛋白的应用效果。方法选取该院在2017年7月—2018年7月期间该院收治的60例妊娠期糖尿病患者作为研究组,并选取同期健康妊娠者60名作为对照组,检测所有研究人员HbA1c阳性检出率、HbA1c与FPG水平,比较两组研究人员的妊娠结果。结果研究组HbA1c (11.02±2.71)%与FPG(6.71±2.33)mmol/L水平明显高于对照组的(5.10±0.94)%与FPG(3.98±0.41)mmol/L。研究组HbA1c与FPG检验阳性率明显高于对照组,且HbA1c检验阳性率明显高于FPG检验水平。且早产儿、巨大儿、剖宫产、羊水过多以及胎膜早破发生率明显高于对照组,差异有统计学意义(P<0.05)。结论在临床上对于早期妊娠期糖尿病诊断中HbA1c检测具有较高价值,能够避免妊娠并发症的发生。

关键词： 血液检验   红细胞参数   贫血   诊断作用  

摘要： 目的:研究在贫血鉴别诊断中采取血液检验红细胞参数的应用价值。方法:将2016年12月至2017年12期间收入的30例贫血患作为实验组,将2016年12月至2017年12期间收入的30例健康体检人员作为参照组,均开展血液检验红细胞参数检测,对比两组各项指标检测情况。结果:实验组红细胞平均血红蛋白量、红细胞体积分布宽度、血红蛋白、红细胞计数、红细胞平均体积对比参照组,P<0.05,统计学存在分析意义,且不同程度贫血患者血清铁、血清转铁蛋白受体、血清铁蛋白,P<0.05,统计学存在分析意义。结论:将血液检验红细胞参数应用在贫血鉴别中具有显著价值,值得应用。