scholarly journals Density maps of geophysical study as a new type of integrated characteristic of geophysical fields in atlases

2019 ◽  
Vol 2 ◽  
pp. 1-6
Author(s):  
Dmitriy S. Loginov ◽  
Sergey A. Krylov

<p><strong>Abstract.</strong> Nowadays the geophysical section of traditional atlases is not sufficiently informative. The amount of geophysical fields’ maps rarely exceeds two. On the other hand, the electronic GIS atlases invariably include in their composition maps of study of geophysical observations, which make it possible to assess the level of exploration on the mapped territory. The creation and design of such maps today are limited to displaying only the factual location of observation profiles and other objects. In order to expand the possibilities of analyzing geophysical information, the authors suggests a method for creating of density maps of geophysical study. The study on these maps is shown with isolines &amp;ndash; usual method for geophysical maps. The authors of this article describe the method of creating density maps of geophysical study. This method includes the following steps: selection and analysis of information sources of geophysical study; choice of study parameters for mapping; calculation of the density of objects of geophysical study; interpolation and creation of isolines of objects of geophysical study density. The created study maps of density dynamics represent the approbation of the method; they allow increasing the information content of geophysical section of the atlas. The study is also a special factor that determines general need of mapping the phenomenon and characterizes the availability of data sources for mapping. Therefore, the opportunities for using developed maps for the automated determination of the atlas structure are also shown in the article.</p>

Author(s):  
Y. Taniguchi ◽  
E. Nakazawa ◽  
S. Taya

Imaging energy filters can add new information to electron microscopic images with respect to energy-axis, so-called electron spectroscopic imaging (ESI). Recently, many good results have been reported using this imaging technique. ESI also allows high-contrast observation of unstained biological samples, becoming a trend of the field of morphology. We manufactured a new type of energy filter as a trial production. This energy filter consists of two magnets, and we call γ-filter since the trajectory of electrons shows ‘γ’-shape inside the filter. We evaluated the new energyγ-filter TEM with the γ-filter.Figure 1 shows schematic view of the electron optics of the γ-type energy filter. For the determination of the electron-optics of the γ-type energy filter, we used the TRIO (Third Order Ion Optics) program which has been developed for the design of high resolution mass spectrometers. The TRIO takes the extended fringing fields (EFF) into consideration. EFF makes it difficult to design magnetic energy filters with magnetic sector fields.


Author(s):  
P.F. Collins ◽  
W.W. Lawrence ◽  
J.F. Williams

AbstractA procedure for the automated determination of ammonia in tobacco has been developed. Ammonia is extracted from the ground tobacco sample with water and is determined with a Technicon Auto Analyser system which employs separation of the ammonia through volatilization followed by colourimetry using the phenate-hypochlorite reaction. The procedure has been applied to a variety of tobaccos containing from 0.02 to 0.5 % ammonia with an overall relative standard deviation of 2 %. The accuracy of the procedure as judged by recovery tests and by comparison to a manual distillation method is considered adequate


2021 ◽  
Vol 164 ◽  
pp. 106823
Author(s):  
Cuong V. Nguyen ◽  
Emma Dinh ◽  
Andrew Doi ◽  
Thuong V. Nguyen ◽  
Anh V. Nguyen

1966 ◽  
Vol 14 (2) ◽  
pp. 290-295 ◽  
Author(s):  
Marco Baggiolini ◽  
Marcel H. Bickel
Keyword(s):  

1985 ◽  
Vol 31 (10) ◽  
pp. 1761-1761 ◽  
Author(s):  
D Hendriks ◽  
S Scharpé ◽  
M van Sande ◽  
J P Vingerhoed

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