Results 1 to 10 of about 503 (81)
Providing long‐term care: Options for a better workforce
International Social Security Review, Volume 75, Issue 3-4, Page 121-144, July-December 2022., 2022 Abstract Older people and their care workers have been disproportionately affected by the COVID‐19 pandemic. Many OECD Member countries have taken measures to contain the spread of the infection and improve the care workforce. Yet the health crisis is highlighting and exacerbating pre‐existing structural problems in the long‐term care (LTC) sector.
Ana Llena‐Nozal +2 more
wiley +1 more source
Journal of Traumatic Stress, Volume 35, Issue 2, Page 605-618, April 2022., 2022 Abstract Mental health data from the 2016–2017 Vietnam Era Health Retrospective Observational Study (VE‐HEROeS) were analyzed by cohort, represented by United States Vietnam theater veterans (VTs) who served in Vietnam, Cambodia, and Laos; nontheater veterans (NTs) without theater service; and age‐ and sex‐matched nonveterans (NVs) without military ...
Yasmin Cypel +8 more
wiley +1 more source
Gongye shui chuli, 2017 针对油气田阳离子型咪唑啉类缓蚀剂与阴离子型阻垢剂配伍性较差的问题，以有机酸和三乙烯四胺为反应原料合成了咪唑啉，在n（咪唑啉）：n（CS2）：n（NaOH）为1：1：1、乙醇为溶剂、温度为60℃条件下反应2 h，得到水溶性的阴离子缓蚀剂，并考察了该缓蚀剂的缓蚀性能及其与阻垢剂的配伍性。研究结果表明，在含盐25%、温度60℃、压力为0.5 MPa的腐蚀介质中，该缓蚀剂加药质量浓度为50 mg/L时，24 h内对A3碳钢的缓蚀率>92%，与阴离子阻垢剂的配伍性良好。
杨根全, 李志元
doaj +2 more sources
Gongye shui chuli, 2003 根据大连地区原水水质,运用正交试验法,经阻垢试验、旋转挂片腐蚀试验、动态模拟试验、杀菌剂配伍试验,筛选出以环保型L-天冬氨酸取代物为主剂,浓缩倍数为4.5～5的合成氨厂环保型高浓缩倍数水稳剂配方。试验结果表明,DHY-021配方具有优异的缓蚀阻垢性能,与杀菌剂有良好的配伍性。
余满春, 谢晓杰
doaj +2 more sources
Gongye shui chuli, 2021 为研究致密气采出水回注的可行性，以鄂尔多斯东缘盆地某致密气区块采出水及石盒子组盒8段储层为研究对象，通过水质配伍、黏土膨胀岩心伤害及储层敏感性实验，综合分析采出水水质对回注储层的影响。结果表明：初期采出水经处理后，混合结垢量最大为54 mg/L，配伍性良好；水样无论是单独回注还是混合回注，其黏土膨胀率最大为21.78%，均不会引起黏土膨胀。采出水中悬浮物和含油质量浓度分别限制在10 mg/L和6 mg/L以下，对储层的伤害率低于20%；致密砂岩储层敏感性对回注水主要表现为中等偏弱速敏、弱酸敏。
黄伟, 袁进, 司雷霆, 张弛
doaj +2 more sources
Gongye shui chuli, 2018 通过瓶试、配伍性试验、现场应用等试验，研究了反相破乳剂TS-F7601与曹妃甸现场在用药剂的配伍性以及在采油污水处理中的净化性能，确定了TS-F7601的使用浓度。试验结果表明：反相破乳剂TS-F7601破乳性能良好，当投加质量浓度为52~54 mg/L时即可保证处理后出水达到回注水水质要求。
张继伟, 王吉照, 谢俊成
doaj +2 more sources
Integrative Conservation, Volume 4, Issue 4, Page 686-694, December 2025.The soil fungicide reduces the occurrence of pathogenic fungi in invaded soil and at the same time promotes the recruitment of mycorrhizal fungi and saprophytic fungi by the plants. The addition of biochar to the invaded soil has a negative legacy effect on subsequent invasive plants, while it exerts a positive enhancement effect on native plants ...
Weitao Li +5 more
wiley +1 more source
Gongye shui chuli, 2000 论述了新型杀菌灭藻剂SNA的杀生性能、配伍性、pH值和温度影响、腐蚀速率、毒性以及在工厂生产应用等试验的情况和结果。SNA是一种高效、广谱、低毒的杀菌灭藻剂,其水溶性好,使用方便,能与常用的水质稳定剂配伍使用,也可以与氯气交替使用,对设备不腐蚀。水处理费较低,推广应用SNA有较好的社会和经济效益。
冯骏
doaj +2 more sources
Gongye shui chuli, 2012 海上注水开发油田由于受到海洋作业环境与资源限制,注水水源仅能采用有限的地下水以及生产处理污水资源,为此对注入水与储层进行配伍性研究显得尤为重要。通过浅层地下水、生产污水以及混配水与地层岩石的配伍性实验研究,论证不同注入水源对储层的伤害程度,为油田选取最佳清污混配比例提供依据,保障油田在有限的水资源条件下的高效注水工作。
余焱冰 +7 more
doaj +2 more sources