Results 41 to 50 of about 13,524 (168)
The Study of Ruthenium Catalysts with Metal-NH Ligand Cooperation for Hydrogenation of Esters to Alcohols [PDF]
, 2016 设计合成具有金属-NH配体协同作用的优秀催化剂是催化加氢研究的重要组成部分。本论文新合成了多种不同结构的o-PPh2C6H4NH2-Ru化合物并成功将它们应用于催化酯类化合物加氢制醇的反应研究中。在对系列催化剂结构进行系统表征的基础上，结合它们的催化活性进行了构效关联。鉴于o-PPh2C6H4NH2-Ru体系难以有效催化位阻较大底物的加氢这一问题，进一步将与o-PPh2C6H4NH2结构相似的柔性膦胺配体以及N，N’-二烷基取代的乙二胺配体引入到催化剂结构中，合成出了多种新型催化剂 ...
方霄龙
core
Rare Metals, EarlyView.ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai +4 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2022 目的 探讨动脉源性栓子与心源性栓子的转录基因差异,以期确定潜在诊断性生物标志物的种类。方法收集12例动脉源性栓子和14例心源性栓子并随机各自分成3组进行总RNA提取,采用高通量转录组学检测动脉源性栓子和心源性栓子的转录组、筛选和确定差异表达基因和转录本并进行GO和KEGG途径分析,CPAT和rMATS分别完成新转录本编码能力预测和可变剪切事件检测。结果 动脉源性栓子和心源性栓子分别鉴定出11080个和10658个基因、24759个和24166个转录本。两组栓子相比 ...
doaj
Rare Metals, EarlyView.ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang +5 more
wiley +1 more source
Molecular Dynamic Simulation on Flexible Binding of Broad-specific Neutralizing Antibody CDR3 with Avian Influenza Virus Receptor Binding Site (RBS) and Structure-based Rational Design of RBS-binding [PDF]
, 2017 流感病毒以其持续变异能力和在全球范围内的广泛传播，引发人类呼吸道传染病，严重威胁着人类的健康，是全球公共卫生的重大问题。每年都有大量的人感染流感病毒，或因季节性流感和流感大爆发而死亡。其中，禽流感病毒的威胁，尤其是H5N1型和H7N9型等高致病性禽流感病毒已逐渐成为对人类最具威胁的传染病之一。由于流感病毒的高度变异性，现有的疫苗研发策略需要每年更新流行株，而传统抗病毒药物的治疗效果也会受到影响，因此开发新型抗流感药物是流感防治的迫切需要。 流感病毒包膜外的血凝素蛋白是中和抗体识别的主要靶标 ...
毕行建
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Rare Metals, EarlyView.ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo +9 more
wiley +1 more source
Anti-freezing Mechanism of Superhydrophobic Substrate [PDF]
, 2016 广泛存在于自然界的结冰现象对人类社会有着很大的影响，非预期的结冰往往会给日常生活带来不便和经济损失，甚至人员伤亡。基于生物仿生的超疏水界面材料不仅具有很好的抗冻效果，还克服了传统抗冻方法能耗高，不环保和不便捷等缺陷，为界面抗冻的研究提供了新的途径，成为最近几年界面抗冻的研究热点，一系列具有卓越抗冻性能的超疏水界面材料被发现，促进了相关研究的进行，加深了人们对超疏水界面材料抗冻的认识。然而，由于目前的研究工作采用的实验条件不同，对超疏水界面材料抗冻性能的实验条件没有进行严格控制 ...
张志森
core
Effect of Particle Agglomeration on Thermal Conductivity of Solar Salt Nanofluids [PDF]
ObjectivesNanofluid technology is an important means to improve the thermal conductivity of energy storage materials in solar thermal power plants. However, the nanoparticles in actual molten salt based nanofluid usually aggregate and settle down, which ...
CUI Liu +4 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT The development of sodium‐ion batteries (SIBs) is limited by slow charge transfer kinetics and large material volume changes caused by the large radius of Na+. Leveraging the excellent physicochemical properties and unique heterostructures of metal selenides, ultrafine hetero‐CuFeSe2‐CoSe2 nanoparticles are in situ wrapped by ...
Ying Zhu +5 more
wiley +1 more source
HARBIN GUANGHAN POWER TRANSMISSION CO.,LTD.
Jixie chuandong, 2015 <正>公司简介:哈尔滨广瀚动力传动有限公司是中国船舶重工集团公司第七○三研究所控股子公司,黑龙江省高新技术企业,公司以七○三所舰船动力传动专业为技术依托,拥有强大的设计、研发能力。公司通过长期的技术积累,掌握了高速、重载等核心动力传动技术,形成了一支高水平的研发技术团队,涵盖机、电、液等专业方向,实践经验丰富,研发模式已由传统的经验模式转变为更加严谨的理论一试验相结合模式,精通动力学分析、静力学分析、应力应变分析、流体仿真分析、
doaj +2 more sources