Results 31 to 40 of about 1,168,816 (149)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Biodegradable zinc (Zn)‐based materials are considered promising candidates for orthopedic applications because of their favorable mechanical properties, controllable biodegradability, and good biosafety profiles. However, their clinical translation is limited by early‐stage corrosion‐induced cytotoxicity and inflammation, as well as ...
Jinlong Mao +9 more
wiley +1 more source
Gongye shui chuli, 2020 采用微电解工艺处理印染废水生化出水膜浓缩液，考察了微电解填料、pH、固液体积比、曝气量和反应时间对COD去除率的影响。结果表明，采用自制的T-20多元微电解填料，当进水pH为4.0，固液体积比为1：6，曝气量为1.2 L/min，反应时间为60 min时，COD去除率可达80.38%。T-20微电解填料具有多元微电解体系结构，内部孔隙发达，相比于二元微电解填料，能加速微电解反应电子传递速度，促进膜浓缩液中有机物的降解。
周伟 +5 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Heteroatom coordination regulation is an effective strategy to enhance Fenton‐like catalysis of single atom catalysts, yet its impact on the local microenvironment of active sites still requires in‐depth investigation. Herein, Cl2–Fe–NC catalysts with axial Cl coordination are prepared.
Jing‐Hao Yan +6 more
wiley +1 more source
Gongye shui chuli, 2014 提出了一种基于电渗析离子转型的水质氨氮检测方法。该方法以电极测定法为基础，利用电渗析电解原理，通过离解去离子水生成强碱性电解水，再与待测水样混合进行测定。实验结果表明：该方法检测0.1~10 mg/L范围内的氨氮，相对标准偏差<4%，加标回收率在97%~105%，相对于国标法的偏差在4%以内，满足在线分析测试的要求。
王远, 杨慧中
doaj +2 more sources
±800 kV特高压直流分压器内部故障的SF6分解物测试特性
Gaoya dianqi, 2019 SF6分解物测试是判断SF6绝缘设备内部放电故障有效的方法。笔者在对一起直流分压器故障的分析过程中发现,SF6气体分析未能正确反映第一次跳闸时内部已经出现的放电故障。后对直流分压器进行解体发现,由于其内部电容器气室为单独密封设计,造成电容器内部放电故障产生的SF6分解物未能在直流分压器取气口测出,以致不能正确判断设备健康状况。文中建议进行SF6分解物测试必须清楚了解设备内部气路构成,并对在运的直流分压器故障诊断提出方案,对制造厂在直流分压器内部设计提出改进建议。
谢超, 尚涛, 李乾坤
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT The composition and structural characteristics of metacomposites are crucial for tuning their negative electromagnetic parameters; however, the lack of a clear structure–property relationship severely limits their application in dielectric and magnetic fields.
Chunyuan Deng +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Laser powder bed fusion (LPBF) of Inconel 718 alloy inevitably introduces pronounced microstructural anisotropy, typified by columnar grains and robust crystallographic texture. This results in direction‐dependent fatigue behavior, raising critical reliability concerns for high‐stakes aerospace applications.
Zhifang Shi +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Ti3C2Tx MXene shows significant potential in the field of electromagnetic wave absorption; however, the wave absorption performance was hindered due to the impedance mismatch, which was caused by its inherent high dielectric constant. In this work, Ti3C2Tx MXene co‐assembled with molybdenum disulfide nanosheets and carbon coating layers (MXene/
Hualong Yu +11 more
wiley +1 more source
Gongye shui chuli, 2019 以石墨碳毡为阳极，采用氧气-阳极协同氧化法对亚甲基蓝（MB）、结晶紫（CV）和罗丹明B（RhB）进行降解，研究了不同电压下染料的降解动力学和降解途径。结果表明，染料在降解初期符合一级动力学特征，且其降解速率随电压的升高而加快。1.8、2.0 V电压下，MB和CV在12 h内脱色率达到100%，而RhB在3 h内脱色完全。染料在体系中主要通过N-去甲基化/去乙基化和发色团解离途径被部分降解。
朱渊博, 寿王平, 石兆阳, 孙敏
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The configurational transition of polyelectrolyte chain confined in a cylinder(聚电解质链在柱状受限下的构象转变)
Zhejiang Daxue xuebao. Lixue ban, 2023 采用粗粒化分子动力学模拟方法，研究了受限于圆柱体内的聚电解质链的构象行为。通过计算链平均回旋半径、平均持久长度和平均形状因子等物理量，重点探究反离子价态、链刚性和受限孔径等对聚电解质链尺寸和构象转变的影响。结果表明，受限聚电解质链可形成稳定的棒状、球状、折叠链状和环状结构。尤其在三价反离子诱导下，半刚性聚电解质链可形成稳定的环状结构，并由切向相关函数表征。通过统计反离子分布，进一步探讨了聚电解质链和离子凝结的机制。同时讨论了环的成核和生长动力学特征 ...
高菊先(GAO Juxian) +2 more
doaj +1 more source