Results 41 to 50 of about 635,480 (134)

Research Progress and Prospect of Single‐Atom Materials in Tumor Catalytic Therapy

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Tumor catalytic therapy (TCT), an emerging therapeutic modality, exerts specific cytotoxic effects on tumor cells by catalyzing endogenous substances within the tumor microenvironment (TME)—including hydrogen peroxide (H2O2), glucose, and glutathione—to generate reactive oxygen species (ROS) or deplete protective biomolecules.
Youyu Wang   +4 more
wiley   +1 more source

β-苯乙醇的制备方法

open access: yes, 2004
本发明公开了一种由苯和环氧乙烷在无水三氯化铝催化作用下,制备β-苯乙醇的制备方法,在制备过程中采用定量水解方法得到β-苯乙醇。与现有的烷基化方法相比,苯消耗降低约50%,并可回收副产氯乙醇和聚合氯化铝,消除了含苯酸性废水污染和设备腐蚀 ...
徐杰, 孙志强
core  

Modulating Hierarchical Microstructure to Enhance Strength–Ductility Synergy in an Additively Manufactured Zinc‐Magnesium Alloy via Static Magnetic Field

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Additive manufacturing of zinc‐magnesium (Zn‐Mg) alloys via laser powder bed fusion (LPBF) has gained significant recognition as a promising candidate for bone repair. However, the presence of coarse yet brittle eutectic phases in the fabricated Zn‐Mg alloys tends to induce premature stress concentration and resultant fracture during ...
Zhi Dong   +10 more
wiley   +1 more source

一种适用于多卡材料的高通量制备装置及其制备方法

open access: yes, 2017
本发明涉及一种适用于多卡材料的高通量制备装置及其制备方法,该装置包括有集成螺旋给料系统,集中式感应熔炼,真空吸铸系统,配套计算机控制系统,真空系统和冷却系统组成,制备方法工艺流程:合金元素粉料或颗粒料加入螺旋给料器给料漏斗‑开启真空装置‑计算机输入合金成分配比‑计算机自动计算合金元素加入量推送至指定坩埚‑完成全部坩埚装料过程‑坩埚上升至感应熔炼位置‑真空感应熔炼‑吸铸系统下降‑真空吸铸‑分析。本发明提供一种降低新型多卡材料开发成本,简化开发过程,用于研究多母料 ...
刘剑
core  

交直流气体绝缘管道输电装备微粒污染治理措施研究进展

open access: yesGaoya dianqi, 2021
气体绝缘输电设备内微粒污染物是造成设备故障的主要原因之一,随着设备电压等级的升高,微粒诱发的绝缘故障占设备总故障的比例越来越大,探索高效的微粒抑制措施,对降低设备故障率、保障设备安全稳定运行具有重要意义。文中对交直流GIS/GIL中微粒污染治理措施研究进展进行梳理,首先概述了气体绝缘设备中抑制微粒的基本原理,从微粒启举抑制、微粒运动调控和绝缘子表面微粒吸附抑制3方面阐述了如何降低微粒对设备绝缘的潜在威胁;进一步归纳总结了现有的微粒治理方法,对其优势和不足进行了评价,提出了该领域有待解决的关键问题 ...
常亚楠   +5 more
doaj  

Multi‐Objective Collaborative Process Optimization Based on Deep Learning of Laser In Situ Forging Additive Manufacturing Ti‐6Al‐4V

open access: yesRare 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

一种制备硫系玻璃套管的设备及方法

open access: yes, 2012
本发明提供一种制备硫系玻璃套管的设备及方法,解决了硫系玻璃套管的制备难题,使应用棒管法制备高性能的硫系玻璃光纤和制备硫系玻璃光子晶体光纤成为可能。该制备硫系玻璃套管的设备包括电热炉、用于放置制备硫系玻璃原料的石英管、摇摆控制电机、旋转控制电机以及用于固定石英管的一套夹持部件;所述石英管位于电热炉内,夹持部件固定安装于旋转控制电机轴端,夹持部件与旋转控制电机转轴同轴;电热炉与摇摆控制电机相连、由摇摆控制电机拖动摇摆。本发明应用“旋转法”制备硫系玻璃套管的新技术,解决了硫系玻璃套管的制备难题 ...
许彦涛   +4 more
core  

A Green Strategy for the Ultrafast Synthesis of Functional Hydrogels Toward Intelligent Human–Machine Interfaces

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian   +6 more
wiley   +1 more source

一种MAX相陶瓷涂层及其制备方法和制备装置

open access: yes, 2017
本发明公开了一种MAX相陶瓷涂层,此涂层组成为V2AlxC2‑x,x=0.7~1.5,涂层为柱状晶生长结构,每一个柱状晶由一层Al原子层和两层V原子层交替排列形成,且C原子层位于两层V原子层之间,涂层密度为4.5~5.2g-cm3。本发明还公开了所述MAX相陶瓷涂层的制备方法,采用双靶磁控溅射法并辅助射频叠加中频的电源施加方式,在制备温度为550~650℃的情况下,在非晶基体上非外延生长出所述MAX相陶瓷涂层。该制备条件下获得的V2AlxC2‑x涂层纯度达到了99.9%,涂层硬度在13~16GPa ...
孟凡平   +6 more
core  

氧化锆负载树脂氟离子吸附剂的制备及表征

open access: yesGongye shui chuli, 2011
以某火力发电厂废树脂为载体制备了新型氟离子吸附剂。对其制备条件进行了优化,并用XRD、SEM等手段对制备的吸附剂进行了表征。结果表明:室温下,废树脂在锆浓度为0.05 mol/L的溶液中浸渍1次,然后投入到2 mol/L的氢氧化钠溶液中固化1 h,该条件下制备的氧化锆负载树脂氟离子吸附剂具有较好的除氟效果。该树脂经改性后孔道清晰,所制备的吸附剂为无晶质,表面带有更大的活性。
王桂萍, 王桂燕, 李锋, 张昱
doaj   +2 more sources

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