Development of a Test Method for the Determination of the Hydroperoxide Potential and Antioxidant Effectiveness in Jet Fuels During Long Term Storage

1999 ◽  
Author(s):  
COORDINATING RESEARCH COUNCIL INC ATLANTA GA
Keyword(s):  
Test Method ◽  
Jet Fuels ◽  
Long Term Storage ◽  
Antioxidant Effectiveness ◽  
Term Storage

scholarly journals Determination of standards of raw timber natural losses due to shrinkage at long-term dry storage

2021 ◽  
Vol 67 (No. 5) ◽  
pp. 195-203
Author(s):  
Dalibor Šafařík ◽  
Petra Hlaváčková ◽  
David Březina
Keyword(s):  
Woody Plants ◽  
Mean Value ◽  
The Czech Republic ◽  
Long Term Storage ◽  
Upper Limits ◽  
Natural Losses ◽  
Term Storage

The aim of the article is to describe the issue of determining the characteristics and parameters of raw timber natural losses due to shrinkage at long-term storage, defining the theoretical basis for creating standards, and verify its finding by means of a case study in raw timber storing. This issue is very topical in forestry practice in the Czech Republic as well as in other countries. The lower and upper limits of the standards were calculated, and the proposed mean value was grouped according to woody plants that reflected the most frequent commercial usage with respect to subsequent processing. Subsequently, experimental verification was carried out on a representative sample of 2 209.99 m3 of raw timber of Norway spruce (Picea abies /L./ H. Karst.) at selected forest administrations. Furthermore, the article addresses the related accounting and tax issues of the standards of natural losses of raw timber. Currently, no legislation mandates an entity to establish standards.

Retrospective statistical analysis of lyophilized protein formulations of progenipoietin using PLS: Determination of the critical parameters for long-term storage stability

2004 ◽  
Vol 93 (10) ◽  
pp. 2609-2623 ◽  
Author(s):  
Derrick S. Katayama ◽  
Carol F. Kirchhoff ◽  
Carrie M. Elliott ◽  
Robert E. Johnson ◽  
Jeffry Borgmeyer ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Storage Stability ◽  
Critical Parameters ◽  
Long Term Storage ◽  
Protein Formulations ◽  
Term Storage

scholarly journals Moulds occurrence in woodchips

2014 ◽  
Vol 60 (No. 4) ◽  
pp. 155-158
Author(s):  
J. Souček
Keyword(s):  
Water Content ◽  
Wood Chips ◽  
Effect Of Water ◽  
Long Term Storage ◽  
Term Storage ◽  
Storage Temperatures

The research, whose results are presented, is aimed at determination of development of moulds number in wood chips under different storage temperatures. The experiments were carried out with the moisture of samples 65%, 22% and 1%. During the long-term storage the effect of water content in material on development of moulds can be recorded. The risks linked to mould occurrence can be considerably eliminated by reduction of water content.  

scholarly journals XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products

2004 ◽  
Vol 19 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Yury Teterin ◽  
Serguei Stefanovskij ◽  
Serguei Yudintsev ◽  
George Bek-Uzarov ◽  
Anton Teterin ◽  
...  
Keyword(s):  
Electron Spectroscopy ◽  
Spectral Structure ◽  
Waste Products ◽  
X Ray ◽  
Air Atmosphere ◽  
Highly Active ◽  
Long Term Storage ◽  
Term Storage

The synthesis of ceramic matrixes for the long-term storage of highly active radionuclide wastes and determination of physical and chemical forms of radionuclides in them is one of the important problems in radioecology. It enables to create purpose fully materials for the long-term storage of radionuclides. In the present work the samples of ceramics [CaCe0.9Ti2O6.8(I) and CaCeTi2O7(II}] formed under various conditions were investigated with the X-ray photo electron spectroscopy. It is necessary for synthesis of ceramic matrixes, for the disposal of the plutonium and others tetravalent actinides. A technique was developed for the determination of cerium oxidation state (Ce3+ and Ce4+) on the basis of the X-ray photo electron spectroscopy spectral structure characteristics. It was established that the sample (I) formed at 300 MPa and T = 1400 ?C in the air atmosphere contained on the surface two types of cerium ions in the ratio ? 63 atomic % of Ce3+ and 37 atomic % of Ce4+, and the sample (II) formed at 300 MPa and T= 1300 ?C in the oxygen atmosphere contained on its surface two types of cerium ions also, but in the ratio ? 36 atomic % of Ce3+ and 64 atomic % of Ce4+. It was established that on the surface of the studied ceramics carbonates of calcium and/or cerium could be formed under influence of the environment that leads to the destruction of ceramics.

Determination of fecal alpha 1-antitrypsin concentration by radial immunodiffusion: two systems compared.

1988 ◽  
Vol 34 (2) ◽  
pp. 372-376 ◽  
Author(s):  
C M Wilson ◽  
K McGilligan ◽  
D W Thomas
Keyword(s):  
Radial Immunodiffusion ◽  
Reference Ranges ◽  
Freezing And Thawing ◽  
Sample Handling ◽  
Long Term Storage ◽  
Repeated Freezing ◽  
Alpha 1 Antitrypsin ◽  
Term Storage

Abstract We compared Helena "QUIPlates" and Calbiochem "LC-Partigen" radial immunodiffusion systems for their ability to measure fecal concentrations of alpha 1-antitrypsin (FA1AT). Reference ranges for FA1AT concentrations in infants receiving various diets, in children, and in adults are given for each system. FA1AT values obtained with Calbiochem LC-Partigen plates averaged 30% greater than those obtained with Helena QUIPlates, but both systems distinguished between normal and high values. Studies involving variations of usual sample-handling procedures showed that storage at room temperature, repeated freezing and thawing, and long-term storage of frozen samples had no significant effect on measured FA1AT concentration. However, values obtained for lyophilized and nonlyophilized samples did not correlate well.

Oxidizability of T-6 and RT jet fuels in long-term storage

1983 ◽  
Vol 19 (12) ◽  
pp. 602-604
Author(s):  
V. M. Veselyanskaya ◽  
E. D. Radchenko ◽  
B. A. �nglin
Keyword(s):  
Jet Fuels ◽  
Long Term Storage ◽  
Term Storage

Determination of biogenic amines in mini-salami during long-term storage

1997 ◽  
Vol 58 (4) ◽  
pp. 385-390 ◽  
Author(s):  
E. Treviño ◽  
D. Beil ◽  
H. Steinhart
Keyword(s):  
Biogenic Amines ◽  
Long Term Storage ◽  
Term Storage
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