不同切花泥的特性和保鲜效果研究

通过对目前市场上常见的5种切花泥的特性和保鲜效果研究.结果表明不同种类切花泥的吸水力随其重量的增加呈逐渐减小的趋势,"大地"牌切花泥对菊花、香石竹、非洲菊等切花的保鲜效果明显高于其它种类的切花泥.     

“飞”法不同,效果不同

盛夏的一天,山羊老师要同学们到公园去玩, 然后把自己看到的、听到的、想到的合在一起写一段话。小猪乐乐最爱玩儿了,它高兴地来到公园里, 东瞧瞧、西看看,想了想山羊老师留的作业,犯了     

泥页岩洗油效果的延时缓慢加热热解谱评价方法

针对现有洗油方法无法有效评价泥页岩洗油效果的问题,提出了1种改进型的延时缓慢加热(extended slowing heating,ESH)岩石热解评价方法,通过比较洗油前、后岩石热解谱的变化来判断洗油效果。改进型的ESH热解技术根据泥页岩中有机质的性质将其含烃组分划分为轻质自由烃、FHR和固相有机质3个部分,解决了常规Rock Eval II热解技术无法有效区分自由烃和固相有机质的问题。分析了具有不同干酪根富含度样品的Rock Eval II和ESH热解谱差别,给出了富/贫干酪根样品的ESH热解谱洗油效果评价标准。实验数据显示,根据泥页岩样品洗油前、后ESH热解谱中3个组分的变化来评价洗油效果更加准确。     

不同的评价、异样的效果

1、师出示一首儿歌：大雨下来哗啦啦，小雨下来沙沙沙沙。问：“同学们，谁能用以下的这些节奏来朗读这首儿歌?     

压力蒸气灭菌的效果评价法

高压蒸气灭菌是对医疗用品进行灭菌最常用的一种物理方法,所以,正确应用这些方法,对做好医疗用品消毒灭菌至关重要,本文根据我院外总实验室及消毒室工作,介绍几种高压蒸气灭菌效果的监测评价方法:     

不同风格学习者对微课效果评价分析

本文为提供分析所依据的相关数据,首先采用问卷调查的方式对三所大学不同学科的大学生展开随机性匿名调查,并对调查结果进行系统化的统计。以学习者的角度对微课教学模式的应用现状以及存在的问题进行了分析,并基于学习者角度对微课教学效果的提升策略进行了研究与阐述。     

MTT法评价黄茶的的体外抗癌效果

本实验对两种绿茶和黄茶进行体外抗癌效果评价。通过MTT试验验证其抗癌效果,在400μg／ml浓度处理下蒙顶黄茶（95％、81％）和蒙顶黄芽（94％、80％）表现出对AGS和HT-29癌细胞的生长抑制效果优于龙井绿茶（91％、70％）和云雾绿茶（77％、70％）。由此得出,黄茶的体外抗癌效果优于绿茶。     

不同专业生物化学教学中病例教学法应用效果评价

目的:探讨病例教学法在生物化学教学中的应用及在不同专业中的教学效果。方法:根据教学内容,适当引入临床病例,以小组为单位,对病例中涉及到的生化问题进行讨论,通过问卷调查对病例教学效果进行评价。结果:临床医学、护理学、口腔医学、麻醉学专业学生满意率分别为99.2%、69.4%、95.3%、54.1%。结论:病例教学法有利于基础知识与临床医学的联系,能够激发学生的学习兴趣,提高分析问题、解决问题的能力,强化记忆效果。     

基于模糊综合评价法的高校人才柔性流动效果评价研究

构建高校人才柔性流动效果评价指标体系是定量研究高校人才柔性流动效果的基础。本文采用模糊综合评价法评估高校人才柔性流动效果,从"人才引得进、人才留得住和人才用得好"三方面建立高校人才柔性流动效果的评价指标体系,并以山东省某高校为例进行实证。同时,结合高校人才柔性流动现状,明确高校人才柔性流动应注意的问题,以便高校充分发挥人才柔性流动的效用。     

土遗址保护材料综述

针对土遗址文物的特殊性 ,重点介绍了土遗址保护材料PS材料和有机硅材料 ,以及以硅溶胶为主体的由PVAc和PVB对其改性制成的无机 有机复合材料 ,同时介绍了其它有关的保护材料     

西北地区石窟与土建筑遗址保护研究的现状与任务

我国西北干旱地区遗存的古代建筑遗址分为两大类,一类是石窟寺,另一大类是土建筑遗址.本文阐述了中国西北干旱区石窟与土建筑遗址的病害、赋存环境、保存现状、研究进展、保护中存在的主要科学技术问题,对今后西北地区石窟与土遗址保护研究的重点问题进行了归纳和总结.最后提出应积极开展国内外相关大学和科研机构的大联合,多学科、多领域进行文物保护科技攻关,大力培养高水平文物保护科技人才,开创西北地区石窟与土建筑遗址保护科学研究和保护实践的新局面.     

熊家冢含盐情况调查与分析

可溶盐在一定温湿度条件下在土遗址基体反复溶解—结晶是造成土遗址本体病害的主要原因。本文考察了荆楚故地大型古墓熊家冢土遗址本体的含盐情况,对土遗址取样并进行XRF、XRD、XPS、TEM及离子色谱等方法表征并分析其盐分种类及含量,结果表明,熊家冢实验区域取样基底土中主要含有的成盐阳离子有Na~+、K~+、Mg~(2+)、Ca~(2+)等,阴离子有SO_4~(2-)、NO_3~-、Cl~-等,其中Cl~-含量较少。遗址基体中盐分主要以钙芒硝及水合氯化钙形式存在着。熊家冢土遗址取样与所含盐分分析为其遗址保护提供了必要的参考与基础。     

土遗址加固保护中色差和透气性测试之评价研究

在土遗址加固保护中,对土遗址加固前后颜色变化(又称色差)和透气性的测试是衡量加固材料加固效果优劣的两个核心因素,同时也是建立土遗址加固评价体系中的两项关键技术指标,两者缺一不可.按照颜色科学领域中国际照明委员会GIELAB标准色度表色系统对色差的评价体系和利用国内外材料科学中对透气性的压差法中的重量测试法,对国内外现有的、常用的几种土遗址加固材料和正在研究中的加固材料进行了加固前后色差和透气性的系统测试,客观地对几种加固材料加固前后颜色变化大小和透气性的优劣作出了初步评价,也为建立土遗址加固的色差和透气性评价体系打下初步基础.     

An Evaluation of Early Intervention Effectiveness at Increasing Age Levels for Program Initiation

Previous research has identified a negative correlation between developmental outcomes and length of early intervention programs. In the present investigation, these counterintuitive findings were examined on a sample of “at risk” children who had received a home-based infant development program and who had been enrolled at different age levels. Findings indicated that treatment length was negatively, but not significantly, correlated with developmental outcome. In addition, start age was found to be significantly negatively correlated with outcome, suggesting that certain developmental indices may decrease over time for certain populations. When the regression of time with start age was taken into account in the analyses, large and reliable treatment effects were observed at all start age levels. Results are discussed with respect to future research endeavors.     

An Evaluation of Early Intervention Effectiveness at Increasing Age Levels for Program Initiation

Previous research has identified a negative correlation between developmental outcomes and length of early intervention programs. In the present investigation, these counterintuitive findings were examined on a sample of "at risk" children who had received a home-based infant development program and who had been enrolled at different age levels. Findings indicated that treatment length was negatively, but not significantly, correlated with developmental outcome. In addition, start age was found to be significantly negatively correlated with outcome, suggesting that certain developmental indices may decrease over time for certain populations. When the regression of time with start age was taken into account in the analyses, large and reliable treatment effects were observed at all start age levels. Results are discussed with respect to future research endeavors.     

冻融循环作用下不同含盐土体微细结构变化初步研究

受环境影响,西北干旱区土遗址存在较为严重的盐害,在干湿和冻融循环作用下,盐分在土体中反复迁移,导致土体孔隙发生变化.本文以脱盐后的敦煌本地土为材料,加入不同含量的氯化钠、硫酸钠及两者不同比例的复合盐,制成5×5×5cm试块后,进行冻融循环,并用显微镜观察每个循环后土体孔隙的变化.前期室内风化实验表明,以最优含水率制成的试块在室内风化条件下,Na2S04的盐胀作用远远大于NaC1.同时根据风化实验结果重新设计了不同含量的试块进行冻融循环试验.结果表明,随着冻融循环次数的增加,土颗粒间的孔隙变少,盐分逐渐充满孔隙,并且随着含盐量的增加而愈发明显,与NaC1相比,Na2S04对水分的敏感性非常强,遇水很快结晶析出,对试块迅速产生破坏,二者不同比例的复合盐的表现行为可以认为是两种单盐共同作用的结果.利用显微镜从土的微细结构进行研究,从而掌握盐分对土遗址破坏机理,可以为土遗址盐害的防治提供依据.     

An Evaluation of the Effectiveness of School-Based Behavioral Consultation

An investigation of the effectiveness of school-based behavioral consultation was conducted. Participants were 80 teachers who recently were involved in consultation with a practicing school psychologist. Teachers were asked to evaluate a recent consultation case using a consultant effectiveness scale, a measure of intervention quality, and an intervention outcome index. Results indicated that consultant skills were rated as highly effective, 4 of 6 critical elements of problem solving were included in a majority of cases, and in two thirds of the cases student functioning improved. Significant correlations between consultant skills, consultation quality, and case outcomes were obtained. Potential contributions of field-based consultation research are discussed.     

An Evaluation of the Effectiveness and Acceptability of Teleconsultation

School-based psychological services are typically provided through a triadic model of consultation in which a school psychologist works directly with a teacher or school staff member to address the academic, behavioral, or mental health concerns of a student. With advances in current technology, school psychologists have the capacity to use videoconferencing to engage in their consultative responsibilities. Teleconsultation has the potential to improve the provision of consultative services by increasing school psychologists’ efficiency and providing individuals, especially those in rural areas, access to greater service. The current study evaluated the effectiveness and acceptability of teleconsultation as a means to deliver behavioral consultation services to three teachers and their students. A nonconcurrent multiple baseline across subjects was used. Results showed that consultants could develop a behavioral intervention with a teacher and effectively implement the intervention to improve student outcomes. Teachers also rated teleconsultation as an acceptable means for service delivery.     

家用太阳能咸水蒸馏淡化装置的研究

设计了一种将加热、蒸发、冷凝三个环节集成于一个装置之中的太阳能咸水淡化装置,并进行了实际测试。测试结果表明,与已经投入运行的其它咸水淡化设备相比,整个淡化装置动力辅助系统最少,而且装置的制造成本低廉。