Results 51 to 60 of about 17,507 (167)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu +9 more
wiley +1 more source
Review of sea anemones compound and bioactivity [PDF]
, 2013 海葵(sea anemone)又名海菊花,多指腔肠动物门(Coelenterata)珊瑚虫纲(Anthozoa)海葵目(actiniaria)动物。海葵一般分为爱氏海葵科、链索海葵科、细指海葵科、投海葵科、固边海葵科和绿海葵科等6科37种[1]。海葵体型大多呈圆筒状,触手以辐射对称状在口周围形成数轮,广泛分布在热带和温热带海域,主要固着在海中岩石上或泥沙中 ...
史文军, 吴建平, 张朝晖, 秦松
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang +6 more
wiley +1 more source
Mechanistic study on mercury or cadmium toxicity in marine copepod Tigriopus japonicus under multigenerational exposure [PDF]
, 2016 如今，海洋重金属污染已是最严峻的环境问题之一，会对海洋生态系统乃至人类造成巨大的危害，其中汞和镉是最有代表性的重金属，两者即使在低剂量下也会对海洋生物产生较高的毒性效应，而且会在生物体内累积并在食物链传递过程中有生物放大现象，最终威胁人类健康和生命安全。海洋桡足类日本虎斑猛水蚤（Tigriopusjaponicus），因其广泛的地理分布、相对短的世代周期、高的繁殖力、易于区分的雌雄形态及在海洋环境中重要的生态位等，已成为海洋生态毒理学研究的重要模式生物。因此本论文选取日本虎斑猛水蚤作为受试生物 ...
石琳
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
wiley +1 more source
He jishu为研究压水堆一回路堆芯污垢中放射性物质的产量和分布情况，以典型压水堆（Pressurized Water Reactor，PWR）一回路为研究对象，针对一回路中的放射性物质，建立了污垢沉积及放射性物质的产量分布预测模型。模型对污垢沉积和放射性物质的预测结果与污垢仿真程序CRUDSIM（Chalk River Unidentified Deposits SIMulation）的计算结果差异小于5%。在此基础上，分析了冷却剂流速、氢气含量和冷却剂入口温度的影响。结果表明 ...
王 世伟 +3 more
doaj +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2017 制备了一系列Cu掺杂量不同的Fe/β(40)催化剂，并采用ICP-AES、XRD、H2-TPR、UV-vis和XPS等表征技术分析了催化剂的物化性质.结果表明，适量的铜掺杂能大大提高Fe/β(40)催化剂的低温活性，拓宽其活性温度窗口，但过量的Cu掺杂会降低催化剂的N2选择性.Cu掺杂质量比为1.27%Cu-2%Fe/β(40)的催化剂具有最佳的SCR性能，这与催化剂中存在较多离子交换位的Fe3+和Cu2+物种有关，而存在较多的CuO物种会促进氨高温氧化，使催化剂的N2选择性降低且高温窗口变窄 ...
ZHAORu(赵茹) +2 more
doaj +1 more source
Establishment and Application of Respiratory Syncytial Virus Animal Model [PDF]
, 2016 人呼吸道合胞病毒（HumanRespiratorySyncytiaVirus，hRSV）是全球范围内引起下呼吸道感染主要病原体之一。其感染人群年龄分布广，新生儿与老年人是主要高危人群。据报道，几乎所有小于2周岁婴幼儿都有RSV感染经历，婴幼儿发病住院率高达2.5-4%。RSV引起大于65周岁的老年人感染率为3-4%，病死率约为2%。早产儿、先天性心脏病、先天性支气管及肺发育不良、免疫缺陷的婴幼儿RSV病死率率高达5%，造成严重的医疗负担。 RSV无安全、有效疫苗上市 ...
詹炉停
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium‐ion batteries (LIBs). In this study, a natural roasting agent, seawater‐derived chlorides, was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode. MgCl2·6H2O, a main component
Bei‐Lei Zhang +7 more
wiley +1 more source
The effects of Tao-Hong-Si-Wu on hepatic necroinflammatory activity and fibrosis in murine model of chronic liver disease [PDF]
, 2016 背景：桃红四物汤原名加味四物汤，载于《医垒元戎》，录自《玉机微义》，是在四物汤的基础上加桃仁、红花而成，是活血养血之代表方。桃红四物汤在临床上应用广泛，诸多研究表明桃红四物汤对多种慢性肝病有一定的治疗作用。慢性肝损伤伴肝纤维化发展过程中存在明显的病理性血管生成与重构，阻碍了肝纤维化的逆转与恢复。通过桃红四物汤对病理性血管生成作用的研究，发现部分活血化瘀中药具有抑制病理性血管生成的作用，抗病理性血管生成可能是活血化瘀药的现代药理作用之一 ...
史萌萌
core