Results 91 to 100 of about 502,313 (277)
Multi‐Functional S‐HA/ASTA NPs Coating on Biodegradable ZE21B Alloy for Cerebrovascular Applications
Rare Metals, EarlyView.ABSTRACT Magnesium (Mg) and its alloys have attracted extensive attention of researchers in the field of cerebrovascular implants due to their good mechanical properties and biosafety. However, rapid degradation and delayed endothelialization pose challenges. To address these issues, this study introduces a multifunctional composite coating.
Aqeela Yasin +4 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 1999 选择具有抗菌、抗氧化或抗炎镇痛的药物——水杨酸(HLⅠ)、阿斯匹林(HLⅡ)与具有抗癌活性的二氯二茂钛(Cp2TiCl2)在非水介质中反应, 得到两种具有潜在药理活性的茂钛配合物:Cp2Ti(LⅠ)2,Cp2Ti(LⅡ)2 .经过元素分析、摩尔电导、核磁共振氢谱与碳谱、红外及紫外光谱等测试, 表明水杨酸、阿斯匹林均与二氯二茂钛形成含Ti-O 键的单齿配位的羧酸二取代二茂钛配合物.
XIEXiao-mei(谢晓梅) +3 more
doaj +1 more source
Applications of Aqueous Metal Phthalocyanine Spectroscopic Probes in the Analysis of Biomacromolecules and Inorganic Anions [PDF]
, 2015 金属酞菁是一类化学性质稳定（耐热、耐酸、耐碱），较易合成的化合物。自Braun和Tehemiac获得第一个酞菁化合物以来，酞菁化合物由于其特殊的物理化学和光学性质而在化学和化工领域得到了广泛研究和应用。上世纪80年代开始，酞菁化合物在生物医学领域的应用也逐步得到开发应用。由于金属酞菁的吸收峰和荧光发射峰都在长波区段，可以避开绝大多数天然物质背景光的干扰，在生物化学分析中具有广泛的应用前景。本论文围绕水溶性金属酞菁作为分子探针在生物大分子和无机阴离子检测中的应用而展开 ...
杨惠卿
core
Rare Metals, EarlyView.ABSTRACT Intervertebral disc degeneration (IDD) is a predominant cause of low back pain, significantly impacting quality of life. Mitochondrial fitness is essential in the progression of IDD, as it regulates cellular senescence and pyroptosis. This study investigates the role of mitochondrial caseinolytic protease P (ClpP) in alleviating senescence and
Kun Wang +7 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2008 利用马尔可夫骨架过程和Doob骨架过程及其极限理论，主要得出了一类有负顾客的GI/G/1重试可修排队系统队长的极限分布.此类系统是指在新到达的顾客到达时间间隔服从负指数分布、且负顾客带走全部正顾客（包括正在服务的顾客）的条件下的有负顾客的GI/G/1重试可修排队系统.
LIUJuan(刘娟)
doaj +1 more source
Rare Metals, EarlyView.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
Zhejiang Daxue xuebao. Lixue ban, 2013 着重研究了固定床催化条件下对二甲苯与γ-丁内酯连续流动反应的催化活性和选择性.在对几类不同固体酸催化剂考评的基础上，选择H-Beta分子筛为催化剂并考察了反应温度、氮气流量、液体进样量、催化剂的焙烧温度等因素对反应的影响以及催化剂的再生稳定性和导致催化剂失活的主要因素.实验结果表明，H-Beta分子筛对此反应有较高的催化活性和选择性，与γ-丁内酯有关的副反应可能是导致催化剂失活的主要因素，但是失活后的催化剂可直接在固定床中通入空气灼烧反复活化再生，避免了以往液体酸催化中催化剂的一次性使用问题 ...
BIANNi-ni(卞妮妮) +4 more
doaj +1 more source
Rare Metals, EarlyView.ABSTRACT Internal oxidation has been identified as an effective method for enhancing the strength of AgMg alloys. However, the concurrent occurrence of embrittlement remains inadequately understood, thus limiting their broader application. This study investigates the oxidation behavior of AgMg alloys with Mg concentrations ranging from 1 at% to 7 at ...
Hai‐Cheng Zhu +12 more
wiley +1 more source
Fault diagnosis and fault-tolerant control for nonlinear systems with linear output structure [PDF]
, 2005 Article describes the process of fault diagnosis and fault-tolerant control for nonlinear systems with linear output ...
Shen, L., Wang, H., Yue, H.
core +1 more source
Rare Metals, EarlyView.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