scholarly journals A new method for the semiquantitative determination of major rock-forming minerals with thermal infrared multispectral data: Application to THEMIS infrared data

2013 ◽  
Vol 118 (10) ◽  
pp. 2146-2152 ◽  
Author(s):  
Jun Huang ◽  
Christopher S. Edwards ◽  
Steven W. Ruff ◽  
Philip R. Christensen ◽  
Long Xiao
2016 ◽  
Author(s):  
Joan Miquel Galve ◽  
César Coll ◽  
Juan Manuel Sánchez ◽  
Enric Valor ◽  
Raquel Niclòs ◽  
...  

1989 ◽  
Vol 44 (3-4) ◽  
pp. 197-216 ◽  
Author(s):  
W.P Kustas ◽  
B.J Choudhury ◽  
M.S Moran ◽  
R.J Reginato ◽  
R.D Jackson ◽  
...  

Author(s):  
H. Kachar ◽  
M. R. Mobasheri ◽  
A. A. Abkar ◽  
M. Rahim Zadegan

Increase of temperature with height in the troposphere is called temperature inversion. Parameters such as strength and depth are characteristics of temperature inversion. Inversion strength is defined as the temperature difference between the surface and the top of the inversion and the depth of inversion is defined as the height of the inversion from the surface. The common approach in determination of these parameters is the use of Radiosonde where these measurements are too sparse. The main objective of this study is detection and modeling the temperature inversion using MODIS thermal infrared data. There are more than 180 days per year in which the temperature inversion conditions are present in Kermanshah city. Kermanshah weather station was selected as the study area. 90 inversion days was selected from 2007 to 2008 where the sky was clear and the Radiosonde data were available. Brightness temperature for all thermal infrared bands of MODIS was calculated for these days. Brightness temperature difference between any of the thermal infrared bands of MODIS and band 31 was found to be sensitive to strength and depth of temperature inversion. Then correlation coefficients between these pairs and the inversion depth and strength both calculated from Radiosonde were evaluated. The results showed poor linear correlation. This was found to be due to the change of the atmospheric water vapor content and the relatively weak temperature inversion strength and depth occurring in Kermanshah. The polynomial mathematical models and Artificial intelligence algorithms were deployed for detection and modeling the temperature inversion. A model with the lowest terms and highest possible accuracy was obtained. The Model was tested using 20 independent test data. Results indicate that the inversion strength can be estimated with RMSE of 0.84&deg; C and R<sup>2</sup> of 0.90. Also inversion depth can be estimated with RMSE of 54.56 m and R<sup>2</sup> of 0.86.


1979 ◽  
Author(s):  
B. Lipinski ◽  
T. Nunn ◽  
V. Gurewich

In order to evaluate the effect of plasma inhibitors on the lysis of fibrinogen (F) and fibrin (f) by UK and an activator derived from euglobulin, agarose (1%) plates in borate buffer (pH 7.7) containing human F (0.1%) were prepared. Fibrinolysis was measured after incubation (18h., 37°C) on plates clotted with Arvin (10u.). Fibrinogenolysis was measured using unclotted plates to which Arvin and EACA (0.01M) were added after incubation with the activators. Lytic activity was determined by measuring the clear circular zone around the wells containing the activators. In both the F and f plates, a linear relation between lysis zones and UK concentrations (0-100u/ml) was found. Inhibitors in human plasma (HP) were evaluated by incubating (15 min.) activators with HP prior to their application to the plates. This resulted in a slight (10-20%) reduction in lysis on the f plates and total inhibition of lysis on the F plates. By contrast, when plasmin was mixed with HP, the lysis zones on the F and f plates were identical. It was concluded that an antiactivator rather than an antiplasmin is responsible for the inhibition of F-lysis. These F and f agarose plates provide a practical means for the semiquantitative determination of antiactivators and antiplasmins in patient plasma.


1960 ◽  
Vol 23 ◽  
pp. 227-232 ◽  
Author(s):  
P WEST ◽  
G LYLES
Keyword(s):  

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