Results 1 to 10 of about 14,496 (91)

煤电退出与电力系统转型规划——智利案例研究 [PDF]

open access: yes全球能源互联网, 2021
加快推动能源低碳转型、积极应对气候变化已成为全球共识。在英法德等国宣布退煤后,智利在2019年正式加入退煤行列,承诺在2040年退煤,2050年实现碳中和。大力开发风、光可再生能源资源,退役煤电,已成为智利实现清洁能源转型的重要一步。然而,智利煤电在电力供应结构中占比大,煤电的退出与清洁替代是电力供应结构的重大变革,将导致整个能源电力系统面临包括电力电量充裕性、可再生能源开发利用、电网输配能力、灵活性等多方面的困难和挑战。从电力供应发展的角度研究探讨了智利退煤和清洁能源转型的内在逻辑 ...
汪洋子   +5 more
doaj   +1 more source

Nursing of a premature infant with respiratory distress syndrome treated with comprehensive therapy and ethnomedicine external application (常规干预联合民族医外治疗法治疗1例呼吸窘迫综合征早产儿的护理体会)

open access: yes中西医结合护理, 2023
To summarize the nursing points of a premature infant with respiratory distress syndrome (RDS) treated with comprehensive therapy and ethnomedicine external application.
LONG Liling (龙荔玲)
doaj   +1 more source

过硫酸钾-PAM-硅藻土改善污泥的脱水性能研究

open access: yesGongye shui chuli, 2023
采用过硫酸钾-聚丙烯酰胺(PAM)-硅藻土联合调理污泥,研究联合调理对污泥脱水性能的影响。以污泥比阻(SRF)为脱水性能评价指标,通过响应曲面优化法(RSM)确定联合预调理时各药剂的最佳用量。结果表明,在单位质量的绝干污泥(DS)中,过硫酸钾用量为60.3 kg/t、PAM用量为4.2 kg/t、硅藻土用量为150.8 kg/t时,SRF最低可降至4.84×1012 m/kg,污泥脱水性能明显改善。对其脱水机理进行分析,表明过硫酸钾能氧化破坏污泥的胞外聚合物(EPS),改变污泥中有机物的种类和含量 ...
刘浩, 丁照杰, 刘强, 赵准
doaj   +2 more sources

生物壳粉与CPAM联用改善污泥脱水性能的研究

open access: yesGongye shui chuli, 2022
随着我国经济的发展和城镇化进度的加快,污水处理行业也在快速发展。污泥是污水处理过程的产物,具有发臭、水分高、有机物含量高、结构复杂等特点,且含有大量有毒有害物质,需及时处理,否则会对环境造成二次污染。污泥脱水是污泥处理过程的关键环节。而生物壳粉末作为污泥调理剂可以有效提高污泥的脱水性能。采用两种生物壳粉末(蛋壳粉及贝壳粉)进行单独调理污泥、阳离子聚丙烯酰胺(CPAM)单独调理污泥、贝壳粉联合CPAM调理污泥的脱水试验,试验结果表明:与蛋壳粉相比,贝壳粉更适于污泥调理 ...
刘一止, 周先桃, 杨彤
doaj   +2 more sources

Nursing of a patient with insomnia treated by auricular acupoint sticking and pressing combined with stellate ganglion block (耳穴贴压联合星状神经节阻滞治疗失眠1例的护理体会)

open access: yes中西医结合护理, 2023
This article summarized the nursing measures for a patient with insomnia treated by auricular acupoint sticking and pressing combined with stellate ganglion block. Based on nursing risk assessment, emotion care, dietary guidance and other routine nursing
WANG Cuiying (王翠英)   +8 more
doaj   +1 more source

Nursing care of one case of chemotherapy-associated oral mucositis treated with Chinese herbal gargle combined with moxibustion (中药漱口联合艾灸治疗1例化疗相关性口腔黏膜炎的护理体会)

open access: yes中西医结合护理, 2022
This paper summarizes the nursing experience of a patient with chemotherapy-associated oral mucositis treated with Chinese herbal mouthwash combined with moxibustion. Firstly, risk assessment and grading were performed; then the herbal mouthwash combined
PAN Yanchun (潘艳春)   +1 more
doaj   +1 more source

非对称竞争背景下,绿色发展何去何从? [PDF]

open access: yes全球能源互联网, 2021
创新、协调、绿色、开放、共享的新发展理念,同联合国《2030年可持续发展议程》倡导的“人、地球、繁荣、和平、伙伴关系”五大宗旨高度契合。中国构建新时代高水平对外开放,开拓合作共赢新局面,绿色发展既是目标导向也是引领手段。近年来,“竞争”逐渐成为美国对华战略调整的主基调,美国等西方国家围绕“一带一路”“全球治理”“科技竞争”等议题针对中国展开制衡,强化其非对称的遏制能力。面对非对称竞争,绿色发展将何去何从?为此,阐述了绿色发展理念的兴起及其中国化发展,分析了当前绿色发展所面临的来自西方“体系性的竞争 ...
杨凡欣, 李广
doaj   +1 more source

无机混凝剂与壳聚糖联合调理对污泥脱水的影响

open access: yesGongye shui chuli, 2015
研究了无机混凝剂(PAFC和PAC)与壳聚糖(CTS)联合调理对污泥脱水效果的影响.结果表明:联合调理污泥脱水效果明显优于单一混凝剂调理.当无机混凝剂PAFC和PAC投加量(以干污泥量计)分别为60 mg/g,CTS投加量(以干污泥量计)为3.0 mg/g时,PAFC+CTS、PAC+CTS调理污泥比阻比原泥分别降低了87.90%和84.93%,滤饼含水率降到76.3%和76.9%,污泥平均粒径从原来的8.70 μm分别增大至59.07 μm和54.69 μm.相同投加量下,PAFC ...
林霞亮   +4 more
doaj   +2 more sources

风电场参与电网一次调频最优方案选择与风储协调控制策略研究 [PDF]

open access: yes全球能源互联网, 2019
研究了大型风电场联合集中式储能系统参与电网一次调频的可行性与经济性,并提出一种风储联合调频控制策略。统计分析了正常运行与发生功率缺额事件下实际电网的频率特性,仿真验证了新能源机组参与电网一次调频的必要性;类比火电机组一次调频原理,提出了新能源机组参与一次调频的基本条件;分析了风电机组基于转子惯量、预留备用和配置储能3种调频方案的技术经济性,指出风电场装配集中式储能以承担一次调频是更为经济有效的调频方案。旨在充分利用风机转子惯量以减少配置储能容量,提出一种风储协调的调频控制策略,有效减少储能容量。
刘辉   +4 more
doaj   +1 more source

Nursing of a lung cancer patient with cough treated by Traditional Chinese Medicine ointment combined with acupoint sticking therapy (中药膏摩联合穴位贴敷疗法治疗1例肺癌相关性咳嗽患者的护理体会)

open access: yes中西医结合护理, 2023
To investigate the effect of Traditional Chinese Medicine ointment combined with acupoint sticking therapy in the treatment of cough in a lung cancer patient. Based on the concept of warming and obstruction-removing as tonifying therapy and green nursing
WANG Xingyuan (王兴元)   +2 more
doaj   +1 more source

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