Results 51 to 60 of about 27,443 (153)
Policy Studies Journal, Volume 54, Issue 4, November 2026.ABSTRACT Public consultations are a cornerstone of democratic policymaking, yet the sheer volume and heterogeneity of submissions often overwhelm traditional analysis. Emerging large language models (LLMs) offer new opportunities for making sense of such data, but their performance in contexts with high linguistic and technical diversity remains ...
Edgar Mathevet, Lauriane Cailleux
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四川大学学报. 自然科学版, 2002 用模拟动力学最优化方法 ,研究了在调强放射治疗 (IMRT)中角度优化的必要性 .作者在一个模拟体模上 ,采用 9,7,5和 3束照射方式 ,从不同角度共面照射 ,然后采用模拟动力学最优化方法进行调强优化计算 .在最优化计算中 ,考虑了对紧要器官的硬约束和体积约束 .在优化完成后记录下每一组参数下的目标函数、剂量体积直方图 (DVH曲线 )、强度分布和剂量分布 .通过比较不同射束角度设置下的DVH曲线表明 :在 9束照射时 ,不需进行角度优化 ;但7,5 ,3束照射时 ...
汪俊, 吴章文, 侯氢
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT To improve the strength–toughness balance of IN718, and alleviate the brittleness commonly associated with refractory high‐entropy alloys, this study proposes a novel strategy to fabricate defect‐free IN718/WMoTaNb heterogeneous multiprincipal element alloy coatings via laser‐directed energy deposition.
Zhao Wang +7 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT The deformation behavior of NiTiNb shape memory alloys is governed by microstructural heterogeneity, specifically the interconnected topology of the β‐Nb phase. The regulatory role of the eutectic structure in load partitioning and the evolution of deformation mechanisms, particularly in high‐Nb systems, has not been clearly understood.
Qingda Zhang +11 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Surface‐enhanced Raman scattering (SERS) has emerged as a highly sensitive and specific technique for tumor imaging, owing to its narrow spectral features, resistance to photobleaching, and capability for multiplexed detection. However, its clinical translation remains limited by poor tissue penetration and the absence of intrinsic anatomical ...
Xinyu Miao +7 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Wearable sweat sensors face persistent trade‐offs between multiplexed detection, signal stability, and wearing comfort. Here, we present a Janus electronic skin (e‐skin) with dual‐mode functionality, offering both thermal and moisture comfort.
Zhi‐Mei Mu +12 more
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Shiyou jixie, 2014 为使煤层气排采生命周期更长、煤层气产出量最大化，对地面直驱螺杆泵在煤层气排采中的生产参数进行了优化研究。综合考虑煤层气排采制度及井、泵之间的供排协调的实际约束条件，建立以生命周期内煤层气产气量最大为优化目标的数学模型。引入煤层气井生产数值模拟结果，将其作为优化过程中的参数，将煤层气井生产排采制度这一较难表征的约束条件恰当转化，以适当的时间段内压降值作为计算排水量的依据，编制优化流程图，按照优化流程及其他各约束条件对生产参数进行优化。通过具体实例验证了优化方法的有效性。
孙艳萍, 赵, 宁, 屈文涛, 刘, 庆
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Enhanced Corrosion Resistance in an Additively Manufactured Copper Alloy via Suppressed Segregation
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT This study elucidates the corrosion behavior of C18150 Cu–Cr–Zr alloy fabricated by laser powder bed fusion (LPBF) in comparison with a conventional wrought baseline representative of industrial Cu–Cr–Zr plate products, highlighting the superior corrosion resistance of the additively manufactured condition.
Yang Qi +4 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Aqueous Zn‐ion batteries (AZIBs) are expected to become one of the most promising candidates for large‐scale energy storage, but are impeded by uncontrollable dendrite growth and parasitic reactions. In this study, we propose a simple mechanical shot‐peening (SP) approach for restructuring commercial Zn foils into highly exposed (002)‐textured
Xu Ma +7 more
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Gaoya dianqi, 2007 阐述了新型换流变压器及配套滤波装置的接线方案和滤波器设计特点,在此基础上建立了以初期投资最小为目标函数的滤波装置数学优化模型,在采用遗传算法对优化模型进行优化设计时,考虑到优化模型的特点,采用了混合罚函数法将有约束问题转化成带有罚项的无约束问题的目标函数。最后针对具体的新型高压直流输电平台模型给出了滤波装置优化设计的实例,算例结果验证了该优化设计的正确性。
罗隆福 +5 more
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