scholarly journals Lyophilization of premixed COVID‐19 diagnostic RT‐qPCR reactions enables stable long‐term storage at elevated temperature

2021 ◽  
pp. 2000572
Author(s):  
Michael J. Hammerling ◽  
Katherine F. Warfel ◽  
Michael C. Jewett
Keyword(s):  
Elevated Temperature ◽  
Long Term Storage ◽  
Term Storage

Effect of Liquid Rocket Fuels and Oxidizers on Elastomeric O-Ring Seals

1966 ◽  
Vol 39 (4) ◽  
pp. 1215-1221
Author(s):  
C. L. Bellanca ◽  
I. O. Salyer
Keyword(s):  
Hydrogen Peroxide ◽  
Elevated Temperature ◽  
Nitrogen Tetroxide ◽  
Ethylene Propylene ◽  
Long Term Storage ◽  
Elastomeric Materials ◽  
End Use ◽  
Liquid Rocket ◽  
Term Storage

Abstract O-ring seals of selected elastomeric and compliant materials were evaluated for resistance to liquid rocket fuels and oxidizers in a simulated end-use test. Oxidizers were nitrogen tetroxide, chlorine trifluoride, and 90 per cent hydrogen peroxide; fuels were mixed hydrazines, pentaborane, and Hybaline A-5. Tests were made at 73° F with all fluids; further, the effect of elevated temperature (160° F) on seals was evaluated in nitrogen tetroxide, hydrogen peroxide, and mixed hydrazines. At 73° F only polytetrafluoroethylene was resistant to all of the fluids; however, elastomeric materials were found which were satisfactory for specific fuel or oxidizer systems. Butyl and ethylene propylene rubber appear satisfactory for long term storage in the presence of mixed hydrazines and Hybaline A-5. The fluorocarbons appeared best of the elastomeric materials for use with pentaborane and hydrogen peroxide.

Modelling of Moisture Movement in Wood during Outdoor Storage

2001 ◽  
Vol 6 (2) ◽  
pp. 3-14 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
I. Juodeikienė ◽  
A. Kajalavičius
Keyword(s):  
Experimental Data ◽  
Finite Difference ◽  
Climatic Conditions ◽  
Two Dimensional ◽  
Moisture Movement ◽  
Finite Difference Technique ◽  
Long Term Storage ◽  
Space Formulation ◽  
Term Storage

A model of moisture movement in wood is presented in this paper in a two-dimensional-in-space formulation. The finite-difference technique has been used in order to obtain the solution of the problem. The model was applied to predict the moisture content in sawn boards from pine during long term storage under outdoor climatic conditions. The satisfactory agreement between the numerical solution and experimental data was obtained.

Trehalose: a cryoprotectant that enhances recovery and preserves function of human pancreatic islets after long-term storage

Diabetes ◽  
1997 ◽  
Vol 46 (3) ◽  
pp. 519-523 ◽  
Author(s):  
G. M. Beattie ◽  
J. H. Crowe ◽  
A. D. Lopez ◽  
V. Cirulli ◽  
C. Ricordi ◽  
...  
Keyword(s):  
Pancreatic Islets ◽  
Human Pancreatic Islets ◽  
Long Term Storage ◽  
Term Storage

Humidity reliability of commercial flash memories for long-term storage

2020 ◽  
Vol 59 (SL) ◽  
pp. SLLC01 ◽  
Author(s):  
Tomoki Murota ◽  
Toshiki Mimura ◽  
Ploybussara Gomasang ◽  
Shinji Yokogawa ◽  
Kazuyoshi Ueno
Keyword(s):  
Flash Memories ◽  
Long Term Storage ◽  
Term Storage

MODERN PROBLEMATICS AND ANALYSIS OF EFFICIENCY OF APPLICATION OF DIFFERENT APPROACHES TO DESTRUCTION OF INFORMATION ON MAGNETIC MEDIA

2019 ◽  
Vol 2 (12) ◽  
pp. 154-164
Author(s):  
O. Semenenko ◽  
O. Vodchyts ◽  
V. Koverga ◽  
R. Lukash ◽  
O. Lutsenko
Keyword(s):  
Armed Forces ◽  
Information Storage ◽  
Storage Device ◽  
Magnetic Media ◽  
Long Term Storage ◽  
Physical Impact ◽  
And Storage ◽  
Term Storage

The introduction and active use of information transmission and storage systems in the Ministry of Defense (MoD) of Ukraine form the need to develop ways of guaranteed removal of data from media after their use or long-term storage. Such a task is an essential component of the functioning of any information security system. The article analyzes the problems of guaranteed destruction of information on magnetic media. An overview of approaches to the guaranteed destruction of information on magnetic media of different types is presented, and partial estimates of the effectiveness of their application are given by some generally accepted indicators of performance evaluation. The article also describes the classification of methods of destruction of information depending on the influence on its medium. The results of the analysis revealed the main problems of application of software methods and methods of demagnetization of the information carrier. The issue of guaranteed destruction of information from modern SSD devices, which are actively used in the formation of new systems of information accumulation and processing, became particularly relevant in the article. In today's conditions of development of the Armed Forces of Ukraine, methods of mechanical and thermal destruction are more commonly used today. In the medium term, the vector of the use of information elimination methods will change towards the methods of physical impact by the pulsed magnetic field and the software methods that allow to store the information storage device, but this today requires specialists to develop new ways of protecting information in order to avoid its leakage.

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