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关键词： 中职化工   工艺专业   思想政治  

摘要： 人们受传统观念的影响以及现行教育体制的局限,目前,职业教育仍处于一种层次的教育,是一种终结教育。要抓好中职学生管理工作,必须坚持以学生为中心,树立为学生服务的理念,创新管理模式,结合教学改革实际,采取切实可行的措施。思想政治教育既是人自身发展的需要,也是社会发展的需要,历来是学校教育的重要组成部分,

关键词： 化工产品   影响因素   质量检测   对策  

摘要： 近年来,随着社会经济快速发展,我国各行各业的发展都得到了有力的推动,其中化工工业发展就十分迅猛。目前化工产品已经成为了当前社会经济发展的重要组成部分,化工产品也被应用于各个方面,而随着化工产品的不断增多,相应的质量安全问题也逐渐引起的高度的关注和重视。化工产品与日常产品不同,其是一种较为特殊的产品,比如具有较高的易燃易爆性和有毒性,如果化工产品没有做好质量检测工作而被应用于生活生产中,则会造成较大的影响和严重的后果。所以做好化工产品的质量检测工作十分重要。但是就实际而言,在化工产品质量检测过程中,也存在较多的影响因素。为了提高化工产品质量检测的有效性,本文就化工产品质量检测影响因素进行详细分析,并提出有效对策。

关键词： 化工工艺装置   蒸汽管道配管   异径管   排液设施  

摘要： 介绍了化工工艺设计中的常见设计点,包括异径管设计、弯头设计、阀门设计与连接设计,进行了化工工艺装置蒸汽管道配管设计研究,提出布置蒸汽管道,设计排液设施,设计蒸汽支管,设计蒸汽凝液管,为化工工艺装置设计提供了一定的参考意见。

关键词： 石油化工   工艺管道安装   质量控制  

摘要： 工艺管道安装作为石油化工生产过程中不可或缺的一部分,其安装质量直接关系着石油化工生产能否正常运行。一旦工艺管道安装存在质量问题,便可能引发物料泄漏与其他事故,轻则给石油化工企业带来重大经济损失,重则危害周围群众的身体健康和生态环境,因此控制好石油化工工艺管道的安装质量非常重要,本文就石油化工工艺管道安装质量控制发表几点自己的看法。

关键词： 环保理念   化工工艺   节能方案  

摘要： 在社会环境的高速发展下,推进社会文明是发展的重要主题,促进资源的有效利用,加强节能环保工作的落实是社会发展的重要任务,是实现生态文明的有效建设和促进国家可持续发展的基础。化工产业在当今社会的支柱产业中具有重要的地位,随着化工工业的发展及社会对化工产业需求的增加,化工产业中的资源浪费与污染问题愈加明显。所以促进化工工艺的优化和节能方案的落实,提高化工工业的生产效率,提高能源的应用价值及其合理化利用,将尤为必要。本文将根据化工工艺的节能潜能,探究化工工艺中的节能措施,促进化工工艺的优化。

关键词： 化工工艺   节能减排   降耗技术  

摘要： 随着我国社会的持续发展变化,化工生产的应用也越来越广泛。利用化工进行生产制造为人类的生产生活带来便捷的同时,对现有资源也造成了极大损耗,如何实现节能减排是目前利用化工生产的企业急需解决的问题。在利用煤、石油等进行化工生产时,不仅需要大量的煤、石油等自然资源,还会产生对自然环境造成影响的物质,破坏生态平衡。本文就节能减排问题在化工生产过程中具有的重要作用进行探讨,并对生产过程中的能源消耗问题进行分析,以进一步促进化工生产在节能减排方面的发展。

关键词： 化工工艺   节能降耗技术   应用特点  

摘要： 随着我国社会的不断发展,节能降耗理念逐渐在各个行业都得到了广泛的利用。目前化工行业在生产过程中产生的能耗及资源浪费问题还是非常突出的,因此,为了保证绿色化工工艺的应用效果,需要将节能降耗技术科学地融入到化工工艺中,从整体上提高节能降耗技术的应用效果以及应用质量,从而凸显绿色化工工艺的特点。本文主要介绍了在化工工艺中运用节能降耗技术的作用,并详细分析了化工工艺中节能降耗技术的应用特点,以期为相关技术人员提供一定参考。

关键词： 化学工业   理事会   欧洲  

摘要： 《化学工业2050年愿景—欧洲化学工业应对世纪挑战之道》是最近业内比较热的一本书。这本由欧洲化学工业理事会撰写的著作,阐述了欧洲化学工业发展的大趋势,提出了到2050年欧洲化学工业的8点设想。该书充满想象,同时又十分严谨,为读者勾勒出一个更清洁、更安全、更环保的社会。

关键词： Real-world evidence   Immunotherapy   Immune checkpoint inhibitors   Non-small cell lung cancer   NSCLC  

摘要： Immune checkpoint inhibitors (ICIs) targeting programmed death 1 (PD-1) and PD-ligand 1 (PD-L1) quickly subverted the standard of treatment in Non-Small Cell Lung Cancer (NSCLC), where they were first introduced in all comers previously treated advanced/metastatic NSCLC patients and subsequently in the first line of PD-Ll selected cases of metastatic and locally advanced disease. Treatment algorithm is an evolving landscape, where the introduction of front-line ICIs, with or without chemotherapy, unavoidably influences the following treatment lines. In this context, medical oncologists are currently facing many unclear issues, which have been not clarified so far by available data. Effectiveness and safety in special populations underrepresented in clinical trials - such as elderly, poor PS, hepatitis or human immunodeficiency virus-affected patients - are only a part of the unexplored side of ICIs in the real world. Indeed, pivotal randomized clinical trials (RCTs) often lack of external validity because eligibility criteria exclude some patient subgroups commonly treated in real-world clinical practice. Similarly, cog-effectiveness and sustainability of these innovative agents are important issues to be considered in the real-world. Though affected by several limitations, real-world evidence (RWE) studies allow to collect data regarding overall treated patients in clinical practice according to local authority regulations, overcoming the intrinsic limits of RCTs. The present review focuses on RWE about ICIs in lung cancer treatment, with particular reference to special patient populations, and discusses potential application of real-world data in a potential innovative drug development model.

关键词： Fluorine   Distribution   Superposed exposure   Phosphorous chemical industry   Fertilizer utilization  

摘要： The industrial and agricultural activities based on phosphorous can increase the F content in the surrounding area, causing a widespread adverse effect on the organisms. However, the current information on the superposed health risk posed by the multi-exposure to the F contamination in an area jointly affected by agricultural and industrial activities (DA) is limited. Herein, the F distribution in multienvironmental media and the exposure risk to humans by ingestion, inhalation, and dermal contact pathways are studied in an DA. The content of soil water-soluble fluorine (WF) was higher in the DA than in the area individually affected by agricultural activities (SA). This indicated a superposed contribution of the industrial and agricultural activities to increase the F toxicity in the soil. The correlation of the soil pH and the organic matter content with the soil WF concentration in DA suggested an inter-relationship between the soil physicochemical properties and the toxicity of F in the soil by industrial and agricultural activities. Irrigation water was not a major anthropogenic source of the cropland soil F. The large variation in F concentration in the crops (101.8-195.6%) might have originated from the discrepancies in the soil F content and air F concentration. The air F pollution (0.6-1.6 mg dm(-2) d(-1)) in the area particularly influenced by intensive industrial activities should be important. The exposure of residents to F was mainly from the ingestion of F-enriched crops. The higher exposure of adults to F than that of children could be attributed to more industrial and agricultural outdoor activities, larger exposure area of the skin, and more daily ingestion of F-enriched food by adults. Overall, present insights into the distribution of and the multi-exposure to F may be beneficial for decreasing the adverse F effects on the residents in DAs worldwide. (C) 2020 Elsevier Ltd. All rights reserved.