搜索结果: 1-15 共查到“EPA”相关记录74条 . 查询时间(0.046 秒)
EPA拟征甲烷排放费
甲烷 中国石化 通货膨胀
2024/1/30
近日，美国环境保护局(EPA)表示，根据2022年气候法的要求，将对大型石油和天然气生产商的甲烷排放征收费用。EPA表示，征收甲烷排放费的规定适用于每年报告甲烷排放量超过2.5万吨二氧化碳当量的大型石油和天然气设施。
Chemistry professor Song Lin has received a 2022 Green Chemistry Challenge Award from the U.S. Environmental Protection Agency for his contributions to environmentally sustainable chemical development...
为建立富含二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)型结构磷脂的制备方法,本试验以南极磷虾磷脂为原料,以EPA和DHA总结合率为指标,通过响应面法优化富含EPA/DHA型结构磷脂的酶法合成反应参数,并采用气相色谱(GC)和亲水作用色谱-质谱联用(HILIC-MS)技术对其结构进行表征。结果表明,最优酶催化反应条件为:底物质量比(游离脂肪酸:磷脂, m/m)5.15,反应温度55.22℃,水分...
为获得较高纯度的乙酯型EPA金枪鱼油,以大目金枪鱼加工副产物为原料,通过响应面法优化酶辅助提取粗鱼油的工艺参数,并采用粗鱼油精制、化学催化乙酯化、多级分子蒸馏和尿素包合初步纯化、精馏高纯化,以及合成银离子功能材料螯合制备分离等一系列技术手段进行制备。结果表明,优化的酶解提取法工艺条件为:酶解pH值8.5、酶解温度45℃、酶解时间3 h,此条件下粗鱼油提取率高达43.69%。乙酯化鱼油经多级分子蒸馏...
Beyond EPA's Clean Power decision:Climate action window could close as early as 2023（图）
Beyond EPA Clean Power decision Climate action window close as early as 2023
2017/10/25
As the Trump administration repeals the U.S. Clean Power Plan, a new study from the University of Michigan underscores the urgency of reducing greenhouse gas emissions—from both environmental and econ...
Study:Climate Change Could Outpace EPA Lake Champlain Protections
Climate Change EPA Lake Champlain Protections
2016/11/29
New research suggests that Lake Champlain may be more susceptible to damage from climate change than was previously understood—and that, therefore, the rules created by the EPA to protect the lake may...
A randomized, crossover, head-to-head comparison of eicosapentaenoic acid and docosahexaenoic acid supplementation to reduce inflammation markers in men and women: the Comparing EPA to DHA (ComparED) Study
DHA EPA inflammation men and women randomized controlled trial risk factors
2018/12/13
Background: To date, most studies on the anti-inflammatory effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in humans have used a mixture of the 2 fatty acids in various forms and...
在EPA模式本土化过程中提升企业心理正能量
EPA模式 本土化过程 企业心理正能量
2015/10/19
“第十届中国企业心理服务国际论坛”于2015年10月15日至16日在北京举行。论坛邀请到职业健康领域的国内外专家，围绕“EAP+（Employee Assistance Program，员工帮助计划）与幸福企业”主题进行了深入分享与交流。与会者表示，借助本年度热词“互联网+”，我们可以更好地理解“EAP+”概念。如同“互联网+”可以与各行业整合，已在中国经历十年本土化实践的EAP也已融入到组织人文...
Paying for Permanence: An Economic Analysis of EPA's Cleanup Decisions at Superfund Sites
Permanence Decision making
2015/9/18
We analyze EPA's cleanup decisions at over 100 Superfund sites and examine whether
and how EPA trades off the cost against the permanence of cleanup. EPA's decisions
reveal both a preference for per...
Can a standard dose of eicosapentaenoic acid (EPA) supplementation reduce the symptoms of delayed onset of muscle soreness?
EPA IL-6 resistance exercise and Delayed Onset Muscle Soreness
2015/7/23
Unaccustomed exercise can result in delayed onset of muscle soreness (DOMS) which can affect athletic performance. Although DOMS is a useful tool to identify muscle damage and remodelling, prolonged s...
The National Vehicle and Fuel Emissions Laboratory (NVFEL) is part of the Office of Transportation and Air Quality (OTAQ), which is responsible for carrying out laws to control air pollution from moto...
为研究EPA和DHA对黄鳝脂类代谢、生长及繁殖性能的影响, 用添加有EPA和DHA比例相同(EPA/DHA=0.35)但水平不同(EPA和DHA总量分别为0.00%、0.35%、0.70%)的3种等氮等脂肪饲料,在常温(22—30 ℃)下,分别喂养平均体重为(21.71±0.54)g的黄鳝7周,分析黄鳝脂类代谢和生长性能,然后每组取15尾继续养殖至性腺发育成熟用于繁殖性能分析。结果表明:在饲料中添...
体外培养草鱼前体脂肪细胞,并用不同浓度(0-100 μmol/L)二十碳五烯酸(eicosapentaenoic acid, EPA)进行处理,噻唑兰比色法(Methyl thiazolte trazoliu, MTT)和油红O染色提取法检测EPA对细胞增殖及分化的影响, Real-time qPCR检测过氧化物酶增殖激活受体家族(Peroxidase proliferation activate...
为了提高EPA(Ethernet for plant automation)系统的网络诱导时延性能，研究了系统中功能执行和网络通信的内在运行机理和相互作用机制，提出了它们的协同方法。该方法通过给执行控制功能的用户层功能块和执行通信功能的链路层分组传输设定相互协同的时间片，以及对功能块执行时间和次数的确定，实现了EPA系统中控制与通信的协同。当设备巡回扫描周期较小或需要通信的功能块较多时，能够有效降...