Results 41 to 50 of about 309,213 (196)

原子力显微镜对不同渗透压溶液中人红细胞的观察

open access: yesZhongguo shiyan zhenduanxue, 2006
目的观察不同渗透压溶液中人红细胞形态和细胞膜表面细微结构的变化。方法用5%葡萄糖溶液(等渗液),0.6%NaCl溶液(低渗液),1.5%NaCl溶液(高渗液)分别处理人红细胞,用原子力显微镜观察人红细胞的变化。结果(1)经5%葡萄糖处理的红细胞形态正常;膜表面细微结构为孔洞,孔洞之间为条形隆起,孔洞交织排列,孔洞大小约15 nm100 nm,条形隆起宽约30 nm。(2)经0.6%NaCl溶液处理的红细胞大部分膨胀,细微结构中孔洞呈裂隙状,宽约10 nm,条形隆起粗大,宽约40 nm。(3)经1.5 ...
马亚敏   +5 more
doaj  

Scanning electron microscope studies on the mucosal structure of the digestive tract for Sinonatrix annularis(赤链华游蛇消化道粘膜上皮结构的扫描电镜观察)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2003
采用扫描电镜技术,观察了赤链华游蛇消化道粘膜上皮表面细微结构的特征.结果表明,其食道前段粘膜上皮由纤毛细胞、柱状细胞组成,后段为假复层上皮细胞组成;胃粘膜上皮为单层柱状细胞,细胞表面无微绒毛;肠粘膜上皮细胞表面有微绒毛;同时,还讨论了这些结构与机能的关系.
LIZhong-jie(李仲杰)   +2 more
doaj   +1 more source

Unveiling Solidification Mechanism and Balanced Strength–Ductility Synergy of Eutectic High‐Entropy Alloys

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Eutectic high‐entropy alloys (EHEAs) have attracted significant attention due to their balanced mechanical properties and promising applications. Nonetheless, the correlation between the solidification mechanism of eutectic microstructures and their mechanical properties remains elusive.
Yi Qin   +15 more
wiley   +1 more source

石灰石微观结构及煅烧条件对CaO微观结构的影响

open access: yes, 1998
流化床燃烧脱硫过程中,CaO的微观结构是影响脱硫效率的关键因素,因此我们系统地研究了石灰石微观结构及煅烧条件对热解产物CaO微观结构的影响。我们在管式炉中,模拟流化床燃烧脱硫的条件(温度700 ~ 900 ℃、CO_2浓度0 ~ 20%、粒径0.25 ~ 2.0mm), 对江西和门头沟两种石灰石进行了一系列的热解实验。结合扫描电镜下煅烧产物的微观结构图象和压汞法测定的数据,获得CaO中的孔隙特性(孔体积、比表面积孔隙尺寸分布等),并应用高温环境扫描电镜原位跟踪石灰石分解过程中微观结构的变化。实验中发现 ...
袁国忠
core  

原子力显微镜对经溶液处理后的人红细胞形态结构的观察

open access: yesZhongguo shiyan zhenduanxue, 2005
目的观察人红细胞经8种实验室常用溶液处理后的形态结构,找出利用原子力显微镜观察人红细胞的最佳溶液,探索人红细胞膜表面的细微结构。方法利用原子力显微镜观察经8种溶液处理后的人红细胞。结果从背景颗粒、红细胞的大小形态和红细胞膜表面细微结构来看,1%甲醛溶液、枸橼酸盐缓冲液、5%葡萄糖溶液及TAE溶液处理的红细胞样本背景颗粒少,红细胞大小正常(7μm8μm)、形态双凹圆盘状,红细胞膜表面细微结构清晰,可见红细胞膜表面有孔洞(15nm100nm),孔洞之间为条形隆起(15nm100nm),孔洞交织排列 ...
马亚敏   +5 more
doaj  

Investigating the Origin of Topological‐Hall‐Like Resistivity in Zn‐Doped Mn2Sb Ferrimagnet

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Skyrmions and other chiral spin textures have been extensively studied as potential building blocks for novel spintronic devices. Hall‐resistivity anomalies that deviate from magnetization scaling, known as the topological Hall effect, have been widely employed as evidence for the presence of chiral spin textures in magnetic materials. However,
BoCheng Yu   +9 more
wiley   +1 more source

瓷质显微结构变化的初步观察

open access: yesDianci bileiqi, 1982
本文主要介绍用透射电子显微镜观察焙烧期间瓷质结构变化的情况,从显微结构的角度提出了对烧成的要求。
吴国爱
doaj  

Development and genetic mechanism of complex carbonate reservoir fractures: A case from the Zanarol Oilfield, Kazakhstan

open access: yesPetroleum Exploration and Development, 2010
By core observation and slice analysis, two types of fractures can be identified in reservoirs of Zanarol Oilfield, including macro-fractures and micro-fractures.
Zhao Lun   +5 more
doaj   +1 more source

FLiNaK-ThF4的微观结构及热力学性质的深度势能分子动力学研究

open access: yesScientia Sinica Chimica, 2023
Wanqiu Yin   +5 more
semanticscholar   +1 more source

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin   +9 more
wiley   +1 more source

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