Results 21 to 30 of about 10,229 (115)
Dianci bileiqi, 2007 （接《电瓷避雷器》2007年第3期第46页）2分散剂分散剂是一种表面活性剂,为了便于理解分散剂的作用原理,首先介绍有关表面活性剂的理化性能,然后介绍适合于氧化锌浆料制备的表面活性剂,包括分散剂、消泡剂等。
王振林
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Zhejiang Daxue xuebao. Lixue ban, 2011 采用分子动力学(MD)方法研究了高分子单链受限在2块不可穿透的平行板之间且平行板内有均匀分布的障碍物时的扩散行为.模拟结果发现：分子链的链长N及障碍物间距d对高分子链扩散系数D影响很大.链越长（N越大），扩散越慢（D越小）；同时障碍物间距d越小，扩散越慢（D越小）.障碍物对高分子链的形状因子及链大小也有影响.障碍物间距d越小时，高分子链更接近棒状，链尺寸也较大.这些研究结果有助于全面了解高分子链在受限环境下的构象及动力学过程.
XULi-mei(徐李梅) +2 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Bimetallic structures fabricated by laser powder bed fusion (LPBF) provide an effective strategy for achieving multifunctional integration, yet interfacial structural continuity and the role of lattice defects remain insufficiently understood.
Jinguo Ge, Shuo Yin
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Guangtongxin yanjiu, 2004 分析了光纤光栅的色散特性,介绍了利用均匀光纤光栅透射色散特性进行色散补偿的原理,对级联光纤光栅用于波分复用（WDM）系统多信道色散补偿进行了数值模拟和分析.结果表明,通过选择适当的光纤光栅参数,级联光栅能够对WDM系统中由于常规光纤而色散展宽的光脉冲进行有效的色散补偿.
杨广强 +4 more
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Integrative Conservation, Volume 5, Issue 3, Page 255-267, September 2026.This study presents a comprehensive review of the 500‐year spatiotemporal evolution of global botanical gardens, identifying three major development stages—initial exploration (1543–1699), steady expansion (1700–1899), and rapid proliferation (1900–2020)—with six distinct sub‐stages. We propose a tripartite driving framework grounded in colonial botany
Shidong Li, Guangzhen Shi, Qingwei Li
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Gongye shui chuli, 2003 针对薄板厂浊循环冷却水水质条件和特点,通过阻垢试验、分散试验、腐蚀试验以及破乳除油试验,筛选出具有高阻垢分散性能的阻垢分散剂和除油剂,经现场应用较好地解决了浊循环冷却水含油分高及结垢问题。
姚力, 彭振伟, 金秀红, 张惠欣
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四川大学学报. 自然科学版, 2007 根据盐在载体上自发单层分散的理论,通过样品的XRD检测分析,研究了不同担载方法、担载量和焙烧温度对氯化钙在10X分子筛上单层分散的影响.在担载量同为0.6 g/g时,乙醇溶液浸渍样品在500℃下焙烧,氯化钙即能达到完全单层分散;水溶液浸渍样品须在550℃的焙烧温度下氯化钙才能达到完全单层分散,并且出现了明显的离子交换.干混法样品的氯化钙单层分散量显著低于乙醇溶液浸渍法和水溶液浸渍法,在600℃下其氯化钙担载量既使从0.6 g/g降低至0.4 g/g,仍然有显著的氯化钙晶相峰存在 ...
李彬 +5 more
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Identical Platform, Divergent Publics: Sweden and Finland During the 2022 NATO Crisis
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT Digital platforms are often theorized as universal drivers of political polarization, yet empirical patterns remain inconsistent across countries. Leveraging the natural‐experiment logic of Sweden's and Finland's simultaneous 2022 NATO applications and the NATO–Turkey diplomatic crisis, this study examines how national political cultures ...
Selcen Ozturkcan
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Zhejiang Daxue xuebao. Lixue banAiming at the issues of insufficient thermal stability and weak dispersion efficiency of traditional dispersants, this work constructs a novel dispersant system based on hyperbranched polyethyleneimine.
FENG Jingke(冯经科) +5 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT NiCoCrAlYTa coatings are widely used as bond coats in thermal barrier coating (TBC) systems for gas turbines and aeroengines to provide oxidation resistance and support the formation of a protective thermally grown oxide (TGO). Herein, high‐current pulsed electron beam (HCPEB) modification was utilized to strengthen a NiCoCrAlYTa coating by ...
Xiangcheng Li +6 more
wiley +1 more source