Results 11 to 20 of about 1,118,268 (161)
Guangtongxin yanjiu, 1985 本文介绍34Mb/s光端机中采用的再生电路。再生电路由判决电路和定时提取电路组成。时钟提取电路使用频率—相位锁相环路,其特点是直接从随机码升余弦波形中提取时钟,既有足够的滤抖动能力,又有好的捕捉性能。文中详细介绍了频率—相位锁相环路及其主要部件的工作原理。最后给出环路设计方法和指标测试结果。
陈竞先
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Gongye shui chuli, 2022 以废菌渣（MR）为原料，经ZnCl2 活化后制得废菌渣活性炭（MRAC），采用电化学方法对吸附苯胺废水产生的饱和MRAC进行再生，考察电流、电解质NaCl浓度、电解时间和pH等因素对于再生效果的影响，并通过正交实验探究最佳的再生条件。结果表明，在pH为5、电流为300 mA、NaCl质量浓度为15 g/L、再生时间为1.5 h的条件下，MRAC再生率高达98.43%，且电化学再生的重复性较好，经6次循环后，再生效果稳定，再生率仍可达87.53%。对再生后和再生前吸附苯胺饱和的MRAC采用FT-IR ...
毕俊乐, 李红艳, 张峰, 李尚明
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源荷储多类型灵活性资源协调的高比例可再生能源电源规划 [PDF]
全球能源互联网, 2019 未来高比例可再生能源电力系统愿景下，具有波动性和不确定性的风/光等可再生能源作为主要能源供应者，给电力系统带来了巨大的灵活性需求，考虑单一类型灵活性资源提供调节能力的规划模型和以净负荷包络线为基础的电源规划方法将不再适用。引入灵活性指标量化评估源荷储多类型灵活性资源的调节潜力并作为优化决策变量纳入到规划模型中，从而建立以全周期投资成本最小化为目标的高比例可再生能源电源规划模型。通过电源投资决策、生产模拟和灵活性评估3个流程模块，实现单位投资改善灵活性指标最优的电源规划方案求解。最后 ...
徐唐海, 鲁宗相, 乔颖, 安军
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全球能源互联网, 2018 非洲地区新能源资源丰富，具备建设大型可再生能源发电基地的潜力。非欧联网输送可再生能源，可以在更大范围内实现清洁能源开发的最优经济性和优化配置。本文综合考虑政策措施等外部影响因素，提出一种改进的新能源发电技术经济性分析模型（CORT），并利用该模型测算了未来建设非洲大型可再生能源基地和非欧联网输电的经济性。研究表明，非洲风电联网外送的经济性不明显，太阳能发电外送具备一定的经济性，非欧联网水光打捆输送更具经济性。
汪晓露, 李娜娜, 谢国辉
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Atom Probe Tomography‐Based Analysis of Residual Trace Elements in Advanced Metallic Materials
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Residual trace elements inherited from raw materials strongly influence the mechanical and environmental performance of advanced metallic alloys and recycling materials due to preferable boundary/interface segregation and resultant embrittlement effects, yet their parts per million level concentrations pose significant challenges to ...
Congcong Li +17 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang +5 more
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全球能源互联网, 2019 大力发展电动汽车是能源电力绿色转型的重要途径之一。电动汽车作为一种具备储能功能的移动式电力负载，具有负荷和电源双重属性，如何设计其参与电力市场的商业模式以高效消纳可再生能源，是实现能源电力绿色转型面临的极具挑战性的技术难题。鉴于此，分析了电力市场环境下可再生能源与电动汽车的出力关系，探索了电动汽车自身特性，设计了电动汽车参与电力市场的基本架构；进一步从电网、售电公司、虚拟电厂三个角度分析并提出了电动汽车参与电力市场的商业模式；最后选取某典型城市场景对三种商业模式进行了经济性对比分析 ...
刘敦楠 +5 more
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Political Cycles, Electricity Policy, and Mexico's Economy
Latin American Policy, Volume 17, Issue 2, June 2026.ABSTRACT Electricity reform in Mexico should stimulate economic growth, improve energy efficiency, and reduce greenhouse gas emissions. This article evaluates the successes and failures of reform and draws lessons across political cycles by analyzing changes in political dynamics—often tied to policy reversals—and the legal framework during the pro ...
David Bonilla
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Managing diabetic wounds requires simultaneously addressing their infectious, oxidative, and regenerative impairments. To address this, this study integrates a piezoelectric BiOCl@CuSe heterojunction (PFM‐verified) into an injectable F127/HA hydrogel, creating an ultrasound‐responsive smart dressing.
Jiayan Guo +5 more
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Review of Policy Research, Volume 43, Issue 3, May 2026.ABSTRACT Zoning is one of the most widely used land use regulations in the U.S. An increasing number of local governments have adopted zoning ordinances to regulate renewable energy projects. However, there has been very limited research on the impact of this local regulatory tool.
Shan Zhou, Xue Gao
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