In-situ variable-temperature single-point NMR imaging study of coals

Fuel ◽  
2000 ◽  
Vol 79 (3-4) ◽  
pp. 405-416 ◽  
Author(s):  
K Saito ◽  
I Komaki ◽  
K.-I Hasegawa ◽  
H Tsuno
Keyword(s):  
Variable Temperature ◽  
Single Point ◽  
Imaging Study ◽  
Nmr Imaging

New Insight into the Wax Precipitation Process: In Situ NMR Imaging Study in a Cold Finger Cell

2016 ◽  
Vol 30 (11) ◽  
pp. 9003-9013 ◽  
Author(s):  
Evgeny V. Morozov ◽  
Oleg V. Falaleev ◽  
Oleg N. Martyanov
Keyword(s):  
Imaging Study ◽  
Precipitation Process ◽  
Nmr Imaging ◽  
Cold Finger ◽  
Wax Precipitation ◽  
In Situ Nmr ◽  
Insight Into

In situ analysis of gas phase reaction processes within monolithic catalyst supports by applying NMR imaging methods

2016 ◽  
Vol 273 ◽  
pp. 91-98 ◽  
Author(s):  
Jürgen Ulpts ◽  
Wolfgang Dreher ◽  
Lars Kiewidt ◽  
Miriam Schubert ◽  
Jorg Thöming
Keyword(s):  
Gas Phase ◽  
In Situ Analysis ◽  
Catalyst Supports ◽  
Nmr Imaging ◽  
Phase Reaction ◽  
Imaging Methods ◽  
Monolithic Catalyst ◽  
Gas Phase Reaction ◽  
Reaction Processes

In-situ X-ray tomographic imaging study of gas and structural evolution in a commercial Li-ion pouch cell

2022 ◽  
Vol 520 ◽  
pp. 230818
Author(s):  
Wenjia Du ◽  
Rhodri E. Owen ◽  
Anmol Jnawali ◽  
Tobias P. Neville ◽  
Francesco Iacoviello ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Imaging Study ◽  
Tomographic Imaging ◽  
X Ray ◽  
Li Ion

scholarly journals Multi-source SO<sub>2</sub> emissions retrievals and consistency of satellite and surface measurements with reported emissions

2017 ◽  
Author(s):  
Vitali Fioletov ◽  
Chris A. McLinden ◽  
Shailesh K. Kharol ◽  
Nickolay A. Krotkov ◽  
Can Li ◽  
...  
Keyword(s):  
Point Source ◽  
Single Point ◽  
Control Measures ◽  
Ozone Monitoring Instrument ◽  
So2 Emissions ◽  
Vertical Column ◽  
Wind Speeds ◽  
Surface Measurements ◽  
Best Fit

Abstract. Reported sulfur dioxide (SO2) emissions from U.S. and Canadian sources have declined dramatically since the 1990s as a result of emissions control measures. Observations from the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite and ground-based in-situ measurements are examined to verify whether the observed changes from SO2 abundance measurements are quantitatively consistent with the reported changes in emissions. To make this connection, a new method to link SO2 emissions and satellite SO2 measurements was developed. The method is based on fitting satellite SO2 vertical column densities (VCDs) to a set of functions of OMI pixel coordinates and wind speeds, where each function represents a statistical model of a plume from a single point source. The concept is first demonstrated using sources in North America, and then applied to Europe. The correlation coefficient between OMI-measured VCDs (with a local bias removed) and SO2 VCDs derived here using reported emissions for 1° by 1° gridded data is 0.91 and the best-fit line has a slope near unity, confirming a very good agreement between observed SO2 VCDs and reported emissions. Having demonstrated their consistency, seasonal and annual mean SO2 VCD distributions are calculated, based on reported point-source emissions for the period 1980–2015, as would have been seen by OMI. This consistency is further substantiated as the emissions-derived VCDs also show a high correlation with annual mean SO2 surface concentrations at 50 regional monitoring stations.

scholarly journals Nucleation and Growth of Supported Metal Clusters at Defect Sites on Mgo and NaCl (001) Surfaces: The Cases of Pd and Ag

1999 ◽  
Vol 570 ◽  
Author(s):  
J. A. Venables ◽  
G. Haas ◽  
H. Brune ◽  
J.H. Harding
Keyword(s):  
Deposition Temperature ◽  
Metal Clusters ◽  
Variable Temperature ◽  
Nucleation And Growth ◽  
Force Microscopy ◽  
Atomic Force ◽  
Defect Sites ◽  
Wide Range ◽  
Adsorption Surface

ABSTRACTNucleation and growth of metal clusters at defect sites is discussed in terms of rate equation models, which are applied to the cases of Pd and Ag on MgO(001) and NaCl(001) surfaces. Pd/MgO has been studied experimentally by variable temperature atomic force microscopy (AFM). The island density of Pd on Ar-cleaved surfaces was determined in-situ by AFM for a wide range of deposition temperature and flux, and stays constant over a remarkably wide range of parameters; for a particular flux, this plateau extends from 200 K ≤ T ≤ 600 K, but at higher temperatures the density decreases. The range of energies for defect trapping, adsorption, surface diffusion and pair binding are deduced, and compared with earlier data for Ag on NaCl, and with recent calculations for these metals on both NaCl and MgO

NMR Imaging Study of Stress-Induced Material Response in Rubber Modified Polyamide 6

2002 ◽  
Vol 35 (1) ◽  
pp. 135-140 ◽  
Author(s):  
P. Adriaensens ◽  
L. Storme ◽  
R. Carleer ◽  
J. D'Hae ◽  
J. Gelan ◽  
...  
Keyword(s):  
Imaging Study ◽  
Polyamide 6 ◽  
Nmr Imaging ◽  
Material Response
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