scholarly journals Comparative analyses of a shield building subjected to a large commercial aircraft impact between decoupling method and coupling method

2021 ◽  
Author(s):  
Pengfei Han ◽  
Jingbo Liu ◽  
Bigang Fei
Keyword(s):  
Coupling Method ◽  
Commercial Aircraft ◽  
Decoupling Method ◽  
Comparative Analyses

Development of a Rapid Survey Method of Sampling and Analysis for Asbestos in Ambient Air

1972 ◽  
Vol 30 ◽  
pp. 630-631 ◽  
Author(s):  
R. E. Heffelfinger ◽  
C. W. Melton ◽  
D. L. Kiefer ◽  
W. M. Henry ◽  
R. J. Thompson
Keyword(s):  
Neutron Activation ◽  
Ambient Air ◽  
Survey Method ◽  
Potential Hazard ◽  
Transmission Microscopy ◽  
Comparative Analyses ◽  
Asbestos Fibers ◽  
Controlled Conditions ◽  
Unequivocal Identification ◽  
Identification And Quantification

A methodology has been developed and demonstrated which is capable of determining total amounts of asbestos fibers and fibrils in air ranging from as low as fractional nanograms per cubic meter (ng/m3) of air to several micrograms/m3. The method involves the collection of samples on an absolute filter and provides an unequivocal identification and quantification of the total asbestos contents including fibrils in the collected samples.The developed method depends on the trituration under controlled conditions to reduce the fibers to fibrils, separation of the asbestos fibrils from other collected air particulates (beneficiation), and the use of transmission microscopy for identification and quantification. Its validity has been tested by comparative analyses by neutron activation techniques. It can supply the data needed to set emissions criteria and to serve as a basis for assessing the potential hazard for asbestos pollution to the populace.

424. Heat Stress During Fuel Tank Entry and Maintenance Activities on U.S. Air Force and Commercial Aircraft

1999 ◽  
Author(s):  
G. Kinnes ◽  
P. Jensen ◽  
K. Mead ◽  
D. Watkins ◽  
L. Smith ◽  
...  
Keyword(s):  
Heat Stress ◽  
Air Force ◽  
Fuel Tank ◽  
Commercial Aircraft ◽  
Maintenance Activities

Methodology and Organizational Design to Realize the System Integration Necessary for the Development of Commercial Aircraft

2021 ◽  
Vol 19 (1) ◽  
pp. 1-8
Author(s):  
Nobuo KISHI ◽  
Nozumu KOGISO ◽  
Kazuko MORIZAWA ◽  
Takashi SHIMOMURA ◽  
Toshiaki TSUJII ◽  
...  
Keyword(s):  
System Integration ◽  
Organizational Design ◽  
Commercial Aircraft

The economic strength and tax capacity of the Krasnoyarsk Krai: Challenges and the prospects for development

2020 ◽  
Vol 18 (4) ◽  
pp. 642-651
Author(s):  
V.V. Zozulya ◽  
I.S. Goryunova ◽  
I.V. Zozulya
Keyword(s):  
Sustainable Development ◽  
Import Substitution ◽  
Krasnoyarsk Krai ◽  
Resource Potential ◽  
The Sustainable Development ◽  
Comparative Analyses ◽  
Graphic Visualization ◽  
Further Development ◽  
Tax Capacity

Subject. The article discusses the prospects for the development of the Krasnoyarsk Krai and the implementation of the import substitution programme. Objectives. The article aims to analyze the tax potential of the Krasnoyarsk Krai, highlight the main problems, and identify possible directions for further development of the Krai. Methods. For the study, we used systems and institutional approaches, the methods of statistical and comparative analyses, and data tabular and graphic visualization. Results. The article identifies the main obstacles to the sustainable development of the Krasnoyarsk Krai. Conclusions. The Krasnoyarsk Krai has a strong economic and resource potential for further development, which is not being implemented properly.

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