KMnO4药剂与紫外光联用去除难降解有机污染物的研究

对高锰酸钾药剂处理难降解有机污染物的可行性进行了研究结果表明高锰酸钾不仅能用于微污染物的处理，同样也可用于难降解有机污染物的处理高锰酸钾药剂与紫外光联用深度处理垃圾渗滤液，具有优良的除污染效能．CODcr去除率达80％，UV335退色率达95％以上．还具有很好的灭菌作用．是一种高效、经济的除污染技术．在垃圾渗滤液的深度处理中具有很好的应用前景．     

膨润土改性及其在污水处理中的应用进展

膨润土来源丰富、价廉 ,且具有良好的吸附性能。采用不同的改性方法制得的改性膨润土 ,可显著提高其对各种有机物的吸附净化能力 ,有望成为新型的污水处理材料。其改性方法和应用研究正在成为热点。通过对膨润土的基本改性方法及改性膨润土在污水处理方面的应用进行总结 ,发现膨润土经改性后吸附能力可达原土的 1 0倍以上 ,能用于处理含有机物、重金属离子、离子型化合物等污染物的多类污水。     

Physical and Sexual Intimate Partner Violence Among Women in Methadone Maintenance Treatment.

Although several studies have examined the relationship between intimate partner violence (IPV) and drug use among women in drug treatment programs, more information is needed to delineate differences, as a function of the specific drug used. Data from a random sample of 416 women attending methadone programs were analyzed to elucidate the differential associations between IPV and use of the following: marijuana only, cocaine only, heroin only, or cocaine and heroin. Prevalence of IPV among this sample far exceeded estimates from the general population. After adjusting for sociodemographic variables, use of cocaine only was significantly associated with an increased likelihood of experiencing IPV compared with no drug use. Similar results were found for women using both cocaine and heroin. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Attending to the Omissions: A Historical Examination of Evidence-Based Practice Movements.

Evidence-based practice and empirically supported treatment movements are potent forces that affect the practice of psychology today and have the potential to mandate the types of treatments psychologists conduct. The histories of these movements reveal that certain aspects of therapy valued by psychologists have been ignored. It is shown that the evidence-based movements (a) overemphasize treatments and treatment differences and (b) ignore aspects of psychotherapy that have been shown to be related to outcome, such as variation among psychologists, the relationship, and other common factors. It is important that psychologists understand the development of these movements so that they can be critical consumers of research and can effectively influence the future course of events. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effect of deteriorated microstructures on stress corrosion cracking of X70 pipeline steel in acidic soil environment

In order to investigate stress corrosion cracking (SCC) of X70 pipeline steel and its weld joint area in acidic soil environ-ment in China, two simulating methods were used: one was to obtain bad microstructures in heat affected zone by annealing at 1300°C for 10 min and then, quenching in water; the other was to get different simulating solutions of acidic soil in Yingtan in south-east China. The SCC susceptibilities of X70 pipeline steel before and after quenching in the simulating solutions were analyzed...     

基于溶剂热反应快速沉积ZrO_2-基激光光学薄膜

基于丙醇锆-乙酸-乙醇混合体系的溶剂热反应（423 K,10 h）合成了稳定的ZrO2-基溶胶,采用旋转镀膜技术在K9玻璃基片上制备了ZrO2-基光学薄膜。借助动态光散射、傅里叶变换红外光谱、原子力显微镜、紫外/可见/近红外透射光谱、FilmTMTek 3000型薄膜分析仪以及强激光辐照实验对溶胶与薄膜的微观结构及光学性能进行表征。研究发现,通过与溶剂乙醇的酯化反应和与丙醇锆的配合反应,乙酸具有温和地提供反应水和降低丙醇锆水解活性的双重作用。在各工艺参数适当配置的情况下,采用该方法可以快速合成颗粒流体力学直径为10 nm~15 nm的溶胶,由此沉积的薄膜具有平整的表面、较高的折射率1.633（测试波长为632 nm）和高的激光损伤阈值34.7 J/cm2（激光波长为1 064 nm,脉冲宽度为3 ns,＂R/1＂测试模式）。     

高原冻土区富水场地地基处理措施对比研究

高原冻土区地质条件复杂,冻土地基的差异性冻胀和融沉变形威胁着工程的长期稳定性和服役性能。为满足工程基础的工后沉降与沉降差要求,同时减少对下部冻土的扰动,以多年冻融区过渡段某富水场地为例,开展地基处理现场试验,对比块石抛填和块石抛填+换填两种地基处理施工方案。结果表明,针对包括淤泥质泥岩、粉砂质土、中粗砂、冻融区过渡带四种工程地质条件,采用块石抛填方案均出现翻浆、冒泥等现象,无法碾压达成地基处理要求,而采用块石抛填+换填处理方案,经8～10遍碾压后,压实度均能达到要求。     

基于风险管控的历史遗留硫磺冶炼废渣综合治理效果

为解决赤水河源头流域(云南段)历史遗留硫磺冶炼废渣40多年无序堆积导致流域水体持续酸化的污染问题,通过对“自然衰减”“异位修复”“风险管控”等治理途径分析,提出“风险管控+生态修复”模式开展了该区域内酸性废渣和废水的示范工程治理。在查明治理区域污染因子的基础上,采取“废渣防流失、复合阻隔控制、适生植物配比、污水收集处理和运行监测管理”的集成风险管控技术,分析工程实施前、实施中和实施后的固废属性,以及地表水、地下水和废渣渗滤液中污染因子的变化。结果表明：在投加0.35%～0.65%比例生石灰条件下,固废属性从第Ⅱ类一般工业固废改性为第Ⅰ类一般工业固废;工程完工时,地下水pH即可达标,硫酸盐超标倍数从最大5.3倍削减至1.2倍;工程实施3个月后,渗滤液pH稳定达标,硫酸盐超标倍数从最大3.2倍削减至1.7倍;工程实施7个月后地表水pH达标。基于风险管控的历史遗留硫磺冶炼废渣综合治理,能够满足管控目标,并初步完成了技术推广和应用。     

GCr15钢制钉模复合强韧化工艺研究

通过失效分析和脆断机理研究，对制钉模的失效原因进行了深入分析，在此基础上对复合处理工艺进行了改进；改进后复合处理的G015钢制钉模具有较高的强度和韧性，基本上避免了早期脆性断裂。     

EnGAN：医学图像分割中的增强生成对抗网络

原始采集的医学图像普遍存在对比度不足、细节模糊以及噪声干扰等质量问题,使得现有医学图像分割技术的精度很难达到新的突破。针对医学图像数据增强技术进行研究,在不明显改变图像外观的前提下,通过添加特定的像素补偿和进行细微的图像调整来改善原始图像质量问题,从而提高图像分割准确率。首先,设计引入了一个新的优化器模块,以产生一个连续分布的空间作为迁移的目标域,该优化器模块接受数据集的标签作为输入,并将离散的标签数据映射到连续分布的医学图像中;其次,提出了一个基于对抗生成网络的EnGAN模型,并将优化器模块产生的迁移目标域用来指导对抗网络的目标生成,从而将改善的医学图像质量知识植入模型中实现图像增强。基于COVID-19数据集,实验中使用U-Net、U-Net+ResNet34、U-Net+Attn Res U-Net等卷积神经网络作为骨干网络,Dice系数和交并比分别达到了73.5%和69.3%、75.1%和70.5%,以及75.2%和70.3%。实验的结果表明,提出的医学图像质量增强技术在最大限度保留原始特征的条件下,有效地提高了分割的准确率,为后续的医学图像处理研究提供了一个更为稳健和高效的解决方案。