Results 21 to 30 of about 646,541 (153)
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Photocatalysis has emerged as a promising approach for solar energy conversion and environmental remediation. However, its practical implementation is still hindered by limited charge‐separation efficiency, slow surface reaction kinetics, and insufficient catalyst stability.
Mengting Zhang +5 more
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, 1984 本文分析了大功率流动CO_2激光器输出窗口的热应力破坏问题。结果表明最主要的破坏原因是窗口内表面被微小杂质玷污造成膜层破坏和局部加热而引起的热应力。如果在设计及工艺上设法解决这个问题 ...
俞刚, 解伯民
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Magnesium hydride (MgH2) is a promising solid‐state hydrogen storage material due to its high gravimetric capacity and excellent reversibility. However, its practical application is hindered by high thermodynamic stability and sluggish reaction kinetics.
Xingyang Chen +6 more
wiley +1 more source
Gaoya dianqi, 1982 本文提出了一种计算电器稳定发热的新的数学模型,把求解电器热系统的温升分布,分解为求典型热件组合网络的端部温升和求各单个热件内部温升分布这两类较简单的问题,并把热工问题等值为电网络问题。从而为解决电器热系统的结构复杂、场路混合和内外联系的困难提出了一个新途径,为进一步用计算机分析和设计电器热结构提供了有效和简单的数学模型。 文中还提出了热网络参数实测方法的建议,可用于实测和系统研究电器中各种热件的等值热网络参数。 本热计算方法还可用于指导电器的热设计和热试验。
徐近霈
doaj
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Developing electrode materials with high capacity and outstanding activity is essential for energy storage and conversion technologies. However, integrating multiple functions into a single material remains challenging. Herein, we synthesized a novel CoP@NiCo layered double hydroxide (CoP@NiCo‐LDH) nano‐electrode using hydrothermal and ...
Ruiyu Li +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT The performance optimization of ultrahigh‐strength Cu‐15Ni‐8Sn alloy relies on controlling recrystallization and aging precipitation, which are two thermally activated processes constrained by high activation barriers. Conventional heat treatment requires elevated temperatures and prolonged holding time, inevitably leading to grain coarsening ...
Fei Tan +10 more
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Gongye shui chuli火龙珠根茎作为一种农业废弃物，利用其制备生物炭并吸附重金属废水能够有效降低碳排放。通过响应面设计法的中心复合设计方案，以火龙珠根茎生物炭的热解温度、加热速率、热解时间为考察因素，Cr吸附率为响应指标，优化结果显示在热解温度为730.20 ℃，加热速率为17.56 ℃/min，热解时间为125.94 min的条件下制备的生物炭的Cr吸附率最高为86.07%。
宋晨浩 +7 more
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Gongye shui chuli, 2022 水热处理可以改善剩余污泥的脱水性能，提高减量化效果，副产的水热液含有高浓度有机物，可通过厌氧消化来回收能源。针对炼化剩余污泥水热液厌氧消化甲烷产率低的问题，并基于“以废治废”理念，开展了利用含油废白土热解残渣强化水热液厌氧消化产能的实验研究。结果表明，热解残渣（400 mg/L）可明显促进水解功能，CHO和CHNO类大分子有机物（分子质量>450 u）被有效降解；产酸性能被强化，挥发性脂肪酸（VFA）产率提高100%，质量浓度达到683 mg/L；厌氧消化的甲烷产率得以提升 ...
李晋 +6 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Aiming at the problems of insufficient forming quality and poor surface performance in the preparation of Ti‐6Al‐4V alloy by laser powder bed fusion (LPBF), this study proposed a laser in situ forging additive manufacturing (LIF‐AM) technology, which integrates LPBF with femtosecond laser in situ shock forging and realizes defect control and ...
Peng He +10 more
wiley +1 more source
Dianci bileiqi, 2010 研究避雷器及其比例单元的散热特性是考核避雷器热稳定性的关键。基于引起MOA温升的主要因素,试验研究了在工频电压加热、方波冲击电流及烘箱加热等不同试验条件下MOA及其比例单元的散热特性,并运用工程有限元软件ANSYS建模解析,给出了相应的散热时间常数和降温曲线。试验及解析结果表明:加热方式对MOA的散热特性影响较大,考核比例单元与整只MOA的热等价性时应保证加热方式和加热时间相同;相同外套等结构下,比例单元的轴向散热能力强于整只MOA,为了保证比例单元的散热能力等价于整只MOA,必须采取隔热措施 ...
张搏宇 +5 more
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