Direct Imaging of Mechanical and Chemical Gradients Across the Thickness of Graded Organosilicone Microwave PECVD Coatings

2014 ◽  
Vol 6 (2) ◽  
pp. 1279-1287 ◽  
Author(s):  
Colin J. Hall ◽  
Peter J. Murphy ◽  
Hans J. Griesser
Keyword(s):  
Direct Imaging ◽  
Chemical Gradients ◽  
Microwave Pecvd

scholarly journals Introduction

1995 ◽  
Vol 167 ◽  
pp. 3-7
Author(s):  
A. G. Davis Philip
Keyword(s):  
Large Field ◽  
Direct Imaging ◽  
Ir Detector ◽  
New Developments ◽  
Detector Arrays ◽  
Array Detectors ◽  
Poster Sessions ◽  
Array Technology ◽  
The Subject ◽  
Scientific Results

A short introduction to the subject of the meeting, IAU Symposium No. 167, New Developments in Array Technology and Applications is given. CCD and Array detectors have become the detectors of choice at optical observatories all over the world. Direct imaging, photometry and spectroscopy are all vastly improved as a result. Thirteen IAU Commissions joined in sponsoring this meeting which indicates the wide interest in this subject. In the five days of the symposium the following topics were discussed: New Developments in CCD Technology, New Developments in IR Detector Arrays, Direct Imaging with CCDs and Other Arrays, Spectroscopy with CCDs and Other Arrays and Large Field Imaging with Array Mosaics. A few papers concerning Astrometry with CCDs were given in the poster sessions. Scientific results were also presented in the poster sessions.

scholarly journals Direct Imaging of Oxygen Sub-lattice Deformation in Li-rich Cathode Material Using Electron Ptychography

2021 ◽  
Vol 27 (S1) ◽  
pp. 2724-2726
Author(s):  
Weixin Song ◽  
Miguel Osorio ◽  
John Marie ◽  
Emanuela Liberti ◽  
Xiaonan Luo ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lattice Deformation ◽  
Direct Imaging

scholarly journals Direct Imaging Evidences of Metal Inorganic Contaminants Traced into Cigarettes

2021 ◽  
pp. 125092
Author(s):  
Roberto Matassa ◽  
Maria Sofia Cattaruzza ◽  
Filippo Sandorfi ◽  
Ezio Battaglione ◽  
Michela Relucenti ◽  
...  
Keyword(s):  
Inorganic Contaminants ◽  
Direct Imaging

scholarly journals Direct imaging of plasma waves using ultrafast electron microscopy

2020 ◽  
Vol 7 (6) ◽  
pp. 064301
Author(s):  
Shuaishuai Sun ◽  
Xiaoyi Sun ◽  
Daniel Bartles ◽  
Elliot Wozniak ◽  
Joseph Williams ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Plasma Waves ◽  
Direct Imaging

scholarly journals Direct imaging of fluorescence enhancement in the gap between two gold nanodisks

2021 ◽  
Vol 118 (16) ◽  
pp. 161105
Author(s):  
Hung-Ju Lin ◽  
Hengyang Xiang ◽  
Chenghao Xin ◽  
Zhelu Hu ◽  
Laurent Billot ◽  
...  
Keyword(s):  
Fluorescence Enhancement ◽  
Direct Imaging

scholarly journals Structure and dynamics of the E. coli chemotaxis core signaling complex by cryo-electron tomography and molecular simulations

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
C. Keith Cassidy ◽  
Benjamin A. Himes ◽  
Dapeng Sun ◽  
Jun Ma ◽  
Gongpu Zhao ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Electron Tomography ◽  
Conformational Dynamics ◽  
Molecular Simulations ◽  
Adaptor Protein ◽  
Signaling Mechanism ◽  
E Coli ◽  
Signaling Complex ◽  
Chemical Gradients ◽  
Cryo Electron Tomography

AbstractTo enable the processing of chemical gradients, chemotactic bacteria possess large arrays of transmembrane chemoreceptors, the histidine kinase CheA, and the adaptor protein CheW, organized as coupled core-signaling units (CSU). Despite decades of study, important questions surrounding the molecular mechanisms of sensory signal transduction remain unresolved, owing especially to the lack of a high-resolution CSU structure. Here, we use cryo-electron tomography and sub-tomogram averaging to determine a structure of the Escherichia coli CSU at sub-nanometer resolution. Based on our experimental data, we use molecular simulations to construct an atomistic model of the CSU, enabling a detailed characterization of CheA conformational dynamics in its native structural context. We identify multiple, distinct conformations of the critical P4 domain as well as asymmetries in the localization of the P3 bundle, offering several novel insights into the CheA signaling mechanism.

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