UseofTransmissionElectronMicroscopy
Use of Transmission Electron MicroscopyOverviewA protocol describing the use of Zeiss EM9-S transmission electron microscopy is presented. MaterialZeiss EM9-S transmission electron microscope Procedure1. Familiarize yourself with the basic operations of Fixation, embedding and sectioning of materials for viewing in an electron microscope. 2. Insert and Remove a Specimen from the chamber. 3.......阅读全文
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（四）
Membrane effects describe the case where the disk stretches rather than bends. Figure 5 shows the differences in the deflection and stress for the
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（二）
Summary of ResultsThe important objective of Phase II research was achieved: to fabricate and test a prototype high power sapphire microwave windo
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（六）
windows were confused by the simultaneous deflection of the windows and the O-ring before the window came in contact with the flange. The recesses
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（三）
Sapphire Window Development and Testing.The effort of this work was devoted to fabricating ultrathin strengthened sapphire disks and to accurately
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（十三）
The diameter uptaper from 38.3 mm to 63.5 mm was then fabricated to match the diameter of the resonant ring and windows to be tested. A square r
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（十一）
Fixture Testing. Fixture testing consisted of vacuum, heating, pressure, and microwave testing.Pressure Testing. Initial pressure testing of thin sa
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（五）
Single crystal sapphire is not a typical optical material, with a standard strength not much lower than the steel described above, since the ave
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（十二）
The input port is connected to the high power gyrotron source and the output port is connected to a dummy load to absorb any power not coupled i
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（九）
3) 50 mm Disks. Four 50 mm diameter, 2 mm thick disks were specially polished by Meller Optics to try to obtain strengthening disks. A previous po
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（十）
through a boundary conductance, h, on faces at z = +/- L.is controlled by the parameter hL/k, the Biot Number, where k is the thermal conductivity
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（一）
Dr. Stephen C. Bates，Thoughtventions Unlimited LLC40 Nutmeg Lane Glastonbury, CT 06033EXECUTIVE SUMMARYThe Problems.Windows that transmit high powe
Low－Loss－Sapphire－Windows－for－High－Power－Microwave－Transmission（八）
Strength Prediction. Large deflection theory solves for the deflection of a disk as a function of loading and boundary condition. Stress is a deri
Cellular－－Molecular－Pathology－Branch
VisionTo provide scientific collaboration of excellence to National Toxicology Program (NTP) (http://ntp.niehs.nih.gov/) interdisciplinary research pr
张祺屿等－过氧化物酶建立标记阐明神经突触连接模式
由于突触连接的构成部分非常小（约数十纳米），通常借助电子显微镜来阐释神经元之间的突触连接模式（synaptic connectivity）。现有的大规模神经系统电镜重建数据（large-scale EM reconstruction of the nervous system）虽然可以用于构建无
《自然》（20231123出版）一周论文导读
原文地址：http://news.sciencenet.cn/htmlnews/2023/11/513024.shtm 编译 | 李言Nature, 23 November 2023, Volume 623 Issue 7988《自然》, 2023年11月23日，第623卷，7988期
TEM－Visualization－of－Microtubules
LEVEL IIMaterialsCoated grid for TEM0.1 M ammonium acetate5% ethanol saturated uranyl acetateTransmission electron microscopeProcedureAt the conclusio
关于扫描电子显微镜知识的详解
显微仪器主要包括了光学显微镜和电子显微镜。光学显微镜的分辨率最高只能达到200 nm，有效放大倍率为1000~2000倍，无法研究如物质的分子、原子等小于200 nm的物质。故而，科学家们进而研究了电子显微镜。电子显微镜简称电镜（ Electron Microspy， EM ），它是利用电子束对
Cell:重构成年果蝇的运动控制回路
Cell | 脊椎动物肢体运动神经元（MNs）位于脊髓中，神经元网络将来自大脑的信号与来自身体的感觉反馈整合在一起进而协调肢体的运动。尽管数百年来，关于中枢神经系统如何组织和发育已经有了较多的研究，但目前对于运动控制的回路以及期间所涉及的连接机制仍未阐明。 黑腹果蝇 (Drosophil
The－OP9DL1－System:－Generation－of－TLymphocytes－from－Embryonic1
The OP9-DL1 System: Generation of T-Lymphocytes from Embryonic or Hematopoietic Stem Cells In VitroRoxanne Holmes and Juan Carlos Zúñiga-Pflücker1Sunn
透射电子显微镜的功能特点
透射电子显微镜(Transmission Electron Microscope，简称TEM)，可以看到在光学显微镜下无法看清的小于0.2um的细微结构，这些结构称为亚显微结构或超微结构。
Spectrophotometry
A spectrophotometer or colorimeter makes use of the transmission of light through a solution to determine the concentration of a solute within the sol
TEM和SEM的工作原理差别
扫描电子显微镜 SEM(scanning electron microscope) 工作原理：1965年发明的较现代的细胞生物学研究工具，主要是利用二次电子信号成像来观察样品的表面形态，即用极狭窄的电子束去扫描样品，通过电子束与样品的相互作用产生各种效应，其中主要是样品的二次电子发射。二次电子能够产
TEM和SEM的工作原理差别
扫描电子显微镜 SEM(scanning electron microscope) 工作原理：1965年发明的较现代的细胞生物学研究工具，主要是利用二次电子信号成像来观察样品的表面形态，即用极狭窄的电子束去扫描样品，通过电子束与样品的相互作用产生各种效应，其中主要是样品的二次电子发射。二次电子能够产
化学试剂级别及简称宝典
常见质量级别 优级纯(GR，绿标签)：主成分含量很高、纯度很高，适用于精确分析和研究工作，有的可作为基准物质。 分析纯(AR，红标签)：主成分含量很高、纯度较高，干扰杂质很低，适用于工业分析及化学实验。 化学纯(CP，蓝标签)：主成分含量高、纯度较高，存在干扰杂质，适用于
化学试剂级别简称大全
在现在的化学实验中，大家或许都清楚，很多仪器设备的名称或者是化学试剂的各方面参数都是采用英文简称标注的，如果对这些简称不了解，将会对实验的进行带来不便的影响，针对这个问题，郑州化学试剂小编为大家简单总结一下在实验中可能用到的一些化学试剂级别简称，希望对大家有所帮助！中文英文缩写或简称优级纯试剂Gua
显微镜技术——光学显微技术
The Light Microscope (House Ear Institute)An explanation of how the light microscope works, how to use it, and how to get optimal results when using i
《科学》（20240802出版）一周论文导读
编译|未玖Science, 2 AUG 2024, VOL 385, ISSUE 6708《科学》2024年8月2日，第385卷，6708期材料科学Materials ScienceEvent-responsive scanning transmission electron microscopy事
Keynote－Speaker:－Xiaoliang－Xie
Xiaoliang Xie Professor Xie is an internationally renowned biophysical chemist, and the Lee Shao-kee professor of Peking University. After a career a
Isolation－of－Total－RNA－from－Animal－Cells－use－RNeasy－Mini－Kit
实验概要Extract the total RNA from animal cells by using RNeasy Mini Kit (QIAGEN No.74104) 主要试剂SDS based extraction solution实验步骤1. Harvest cells.1) Try
Use－of－the－B.D.－FACS－or－Calibur－Flow－Cytometers2
Gating:Gating will allow you to view cells of interest by any combination of criteria that you choose. Gating does not change the intensity value assi