Results 71 to 80 of about 20,916 (224)
The Tariff Trap: Why Funding Health Programs Through Tariffs Harms Both Health and Democracy
World Medical &Health Policy, Volume 18, Issue 2, June 2026.ABSTRACT In 2025, the Trump Administration imposed significant tariffs on imports to the US as part of aggressive trade negotiations with other countries. Tariffs have important impacts on health that include increases in the prices that consumers and businesses pay for goods and potential damage to global supply chains.
Holly Jarman, Miranda Yaver
wiley +1 more source
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
wiley +1 more source
Design and Implementation of ERP System for the Power Enterprise [PDF]
, 2015 21世纪以来，信息技术极大促进社会、经济的进步和发展，并且信息技术产业也逐渐成为社会发展的主导产业。而其中ERP，即企业资源管理计划系统，代表着目前这个时代的信息技术与管理理念结合在企业管理中应用成果，结合了企业管理的资源分配，利用信息技术促进了经济增长。 本文通过对业务重组和实施ERP系统的原理和方法的探讨，包含业务重构的原则、技术和其实施过程。供电企业的特点凸显了其中经济发展中的重要性，论文以中国电力投资公司下的某电力公司为例，研究了供电企业ERP系统的设计与实现 ...
马之伟
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Multicomponent transition metal oxides (TMOs) incorporating rare‐earth (RE) elements have emerged as promising materials for the oxygen evolution reaction (OER). However, knowledge of how to regulate the structure of TMO‐based nanomaterials through RE incorporation to enhance catalytic performance remains limited.
Bolin Zhao +6 more
wiley +1 more source
A Study on Sequencing Problem of Mixed-model Assembly Lines in Company Y Based on Genetic Algorithm [PDF]
, 2016 混流装配线通过对装配生产线的合理组织与排产优化，实现多品种共线装配，以较快的响应速度向客户提供定制的产品和服务。客车需求的多样化和客车市场的细分化，使得混流装配线成为Y公司普遍采用的一种生产方式。由于混流装配线复杂的装配过程会涉及不同的产品以及品种繁多的物料，因此，Y公司在努力改善其生产物流系统，以使混流总装线的运行更加平稳和高效。 本文在此背景下，以Y公司承装车间的Z总装线为研究对象，对其建立排序优化模型并利用遗传算法进行求解。首先，从装配流程和生产规划两方面分析Y公司总装线的管理现状 ...
谢平
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Integrating light emission and electromagnetic wave (EMW) absorption into a single material opens up possibilities for multienvironmental applications. Herein, we propose a novel “molecular engineering‐pyrolysis conversion” strategy to construct a bifunctional system with tunable photoluminescence and efficient EMW absorption performance.
Renjie Wang +7 more
wiley +1 more source
全球能源互联网实现全球“碳中和”，核心是推动能源绿色低碳转型，重要举措是推动新能源大规模基地化开发和高效消纳。针对偏远、水电不足地区新能源基地开发面临的低碳调节手段不足、电网配置和消纳能力有限、“风光火”开发模式降碳难等问题与挑战，提出了基于电-氢-碳协同的新能源基地发展思路和开发模式，将氢基产业发展与新能源开发消纳、煤电灵活低碳转型深度融合，同时结合绿氢、绿氨、绿色甲醇等氢基产品制取工艺的技术发展和调节能力提升，量化分析绿电与绿色氢/氨/甲醇在终端消费市场的竞争力及经济效益 ...
刘泽洪 +4 more
doaj +1 more source
Theoretical calculation of cathode catalyst and electrolyte in lithium air battery [PDF]
, 2016 随着电动汽车的快速发展，寻找和开发具有高能量密度的新型锂二次电池显得至关重要，锂空气电池是目前研究最为活跃的体系之一。采用量子化学为主的理论方法，有助于深入认识和理解锂空气电池电化学界面的一些关键科学问题。本文从理论计算的角度出发，开展对于锂空气电池的正极催化剂材料及电解液等关键组件的研究。主要研究内容如下： 1.MnO晶体的(100)、(111)-Mn和(111)-O晶面对锂空气电池充放电过电势影响的机理研究。 在N掺杂石墨烯（NG）表面上均匀生长MnO晶体，该复合材料表现出了优异的OER催化性能 ...
雷鸣
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Magnesium (Mg)‐based composites are regarded as promising lightweight materials with significant potential for structural applications. The structure–property relationships of bionic Mg‐based composites remain unclear. Herein, three honeycomb‐like Mg‐Fe composites are fabricated to uncover the underlying strengthening mechanisms.
Fan Zhang +5 more
wiley +1 more source
Interleaved High Step-Up Current Auto-balance DC/DC Converter In The Photovoltaic Generation System And Its Paralleled Operation [PDF]
, 2016 随着能源和环境问题的日益加剧，光伏电池等新能源并网发电技术得到广泛关注。在光伏并网发电系统中，如何把较低的光伏电池电压转换成并网用的标准母线电压，已成为了重要的研究课题。 本文提出了一种新颖的带耦合电感和开关电容的电流自动平衡高增益DC-DC变换器，该变换器采用耦合电感和开关电容来提升电压增益，同时，主开关管的电压应力大大降低。由于该变换器拓扑具有交叉耦合结构，变换器具备优良电流自动平衡能力。利用交错式操作方式使得输入电流纹波和输出电压纹波都大大减少。此外，在耦合电感的漏感的作用下，开关管实现零电流开通、
廖育贤
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