Performance of low‐cost stainless‐steel beverage kegs for long‐term storage integrity and easy dispensing of water isotope ( d 18 O, d 2 H) reference materials

2021 ◽  
Author(s):  
Stefan Terzer‐Wassmuth ◽  
Leonard I. Wassenaar
Keyword(s):  
Stainless Steel ◽  
Reference Materials ◽  
Low Cost ◽  
Long Term Storage ◽  
Term Storage ◽  
Water Isotope

Investigation of structure and properties of elemental carbon fibers with metal coating

2021 ◽  
Vol 0 (1) ◽  
pp. 7-11
Author(s):  
V. A. Nelyub ◽  
◽  
S. Yu. Fedorov ◽  
G. V. Malysheva ◽  
◽  
...  
Keyword(s):  
Stainless Steel ◽  
Carbon Fibers ◽  
Elemental Carbon ◽  
Strength Increase ◽  
Metal Coatings ◽  
Carbon Tape ◽  
Long Term Storage ◽  
Steel Coating ◽  
Term Storage

Four types of metal coatings made of stainless steel, silver, titanium and copper were deposited on the surface of unidirectional carbon tape by the magnetron sputtering technology. The experimental evaluation results of strength of elemental carbon fibers with the metal coatings and strength of carbon-filled plastics based on them during the interlaminar displacement are presented. When producing the carbon-filled plastics an epoxy binder and the vacuum infusion technology were used. It has been found out that all the used metal coatings lead to an increase in strength of the carbon-filled plastics during the interlaminar displacement. The carbon tape with the stainless steel coating has the highest strength increase (by 50%). However, during long-term storage, the coating effectiveness of the metalized carbon tapes decreases.

Susceptibility of Japanese pears to low concentrations of ethylene during storage

2007 ◽  
Vol 47 (12) ◽  
pp. 1480 ◽  
Author(s):  
M. J. Szczerbanik ◽  
K. J. Scott ◽  
J. E. Paton ◽  
D. J. Best
Keyword(s):  
Carbon Dioxide ◽  
Low Cost ◽  
Pyrus Pyrifolia ◽  
Green Colour ◽  
Long Term Storage ◽  
Low Concentrations ◽  
Internal Browning ◽  
Term Storage

The ‘Nijisseiki’ cultivar of Japanese pears (Pyrus pyrifolia) is also known as nashi in Australia. Nashi were exposed to levels of <0.005, 0.01, 0.1 and 1.0 µL/L of ethylene in air during 26 weeks storage at 0°C. Levels of ethylene as low as 0.01 µL/L increased chlorophyll loss and visual green colour. Increasing ethylene levels also increased softening and internal browning, although flesh spot decay was reduced in the presence of ethylene. While it would be worthwhile to remove ethylene during long-term storage of ‘Nijisseiki’ in air, another alternative, adding 2% carbon dioxide to the atmosphere, is suggested as a possible low cost means to overcome the ripening effect of ethylene.

scholarly journals Capture and Purification of Plant Genomic DNA on a Readily-available Cellulose Matrix

2017 ◽  
Author(s):  
Megan M. Thompson ◽  
Estelle M. Hrabak
Keyword(s):  
Arabidopsis Thaliana ◽  
Nucleic Acids ◽  
Plant Species ◽  
Efficient Method ◽  
Genomic Dna ◽  
Low Cost ◽  
Long Term Storage ◽  
Cellulose Matrix ◽  
Term Storage

AbstractWhatman FTA ®Cards are a fast and efficient method for capturing and storing nucleic acids but are cost-prohibitive for some researchers. We developed a method that substitutes readily-available cellulose-based paper and homemade washing buffer for commercial FTA ®Cards and FTA ®Purification Reagent. This method is suitable for long-term storage of DNA from many plant species, including Arabidopsis thaliana, prior to purification and PCR.Method SummaryHere we report a low-cost method for long-term storage of plant genomic DNA on a readily available cellulose matrix.

scholarly journals Pu/SS Eutectic Assessment in 9975 Packagings in a Storage Facility During Extended Fire

2012 ◽  
Author(s):  
Narendra K. Gupta
Keyword(s):  
Stainless Steel ◽  
Eutectic Temperature ◽  
Radioactive Material ◽  
Interface Temperature ◽  
Fissile Material ◽  
Storage Facility ◽  
Containment Vessel ◽  
Long Term Storage ◽  
Term Storage

In a radioactive material (RAM) packaging, the formation of eutectic at the Pu/SS (plutonium/stainless steel) interface is a serious concern and must be avoided to prevent of leakage of fissile material to the environment. The eutectic temperature for the Pu/SS is rather low (410°C) and could seriously impact the structural integrity of the containment vessel under accident conditions involving fire. The 9975 packaging is used for long term storage of Pu bearing materials in the DOE complex where the Pu comes in contact with the stainless steel containment vessel. Due to the serious consequences of the containment breach at the eutectic site, the Pu/SS interface temperature is kept well below the eutectic formation temperature of 410°C. This paper discusses the thermal models and the results for the extended fire conditions (1500°F for 86 minutes) that exist in a long term storage facility and concludes that the 9975 packaging Pu/SS interface temperature is well below the eutectic temperature.

Evaluation of a low-cost procedure for sampling, long-term storage, and extraction of RNA from blood for qPCR analyses

2015 ◽  
Vol 53 (8) ◽  
Author(s):  
Rasmus B. Mærkedahl ◽  
Hanne Frøkiær ◽  
Lotte Lauritzen ◽  
Stine B. Metzdorff
Keyword(s):  
Gene Expression ◽  
Clinical Trials ◽  
Low Cost ◽  
Rna Extraction ◽  
Initial Step ◽  
Rna Integrity ◽  
Long Term Storage ◽  
Significant Cost Reduction ◽  
Term Storage

AbstractIn large clinical trials, where RNA cannot be extracted immediately after sampling, preserving RNA in whole blood is a crucial initial step in obtaining robust qPCR data. The current golden standard for RNA preservation is costly and designed for time-consuming column-based RNA-extraction. We investigated the use of lysis buffer for long-term storage of blood samples for qPCR analysis.Blood was collected from 13 healthy adults and diluted in MagMAX lysis/binding solution or PAXgene Blood RNA tubes and stored at –20 °C for 0, 1, or 4 months before RNA extraction by the matching method. RNA integrity, yield and purity were evaluated and the methods were compared by subsequent analyses of the gene expression levels ofThe MagMAX system extracted 2.3–2.8 times more RNA per mL blood, with better performance in terms of purity, and with comparable levels of integrity relative to the PAXgene system. Gene expression analysis using qPCR of: The MagMAX system can be used for storage of human blood for up to 4 months and is equivalent to the PAXgene system for RNA extraction. It furthermore, provides a means for significant cost reduction in large clinical trials.

Effect of Long-term Storage on Sterile Status of Devices in Surgical Packs

1987 ◽  
Vol 8 (7) ◽  
pp. 289-293 ◽  
Author(s):  
N. Ariene Klapes ◽  
Velvl W. Greene ◽  
Ann C. Langholz ◽  
Cindy Hunstiger
Keyword(s):  
Stainless Steel ◽  
Laminar Flow ◽  
Long Term Storage ◽  
Laminar Flow Hood ◽  
Storage Times ◽  
And Storage ◽  
Term Storage ◽  
Over Time

AbstractWe investigated the effect of the following on the sterile integrity of surgical packs: four wrapping materials (two-ply reusable, nonbarrier wovens, both new and previously used; disposable, barrier nonwovens; and polypropylene peel pouches), dustcovers, two storage locations, and storage times ranging from 2 to 50 weeks. Two hundred sixty-three packs containing stainless steel coupons were prepared, wrapped, sterilized, and stored. Half of the packs were dustcovered prior to storage. At monthly intervals for a year, packs of each type were opened in a laminar flow hood, and the coupons inoculated into trypticase soy broth. The coupon contamination probabilities were 0.019 for reusable, woven packs; 0.017 for disposable, nonwoven packs; and 0.016 for peel pouches. These differences were not significant. The probability of finding a contaminated coupon in any pack after 50 weeks was 0.018. No trend toward increased probability of contamination over time was observed for any of the pack types studied.

scholarly journals Long-Term Storage of Small Natural History Specimens Using Gelatin Capsules: A Case Study from the Royal Alberta Museum

2018 ◽  
Vol 32 (1) ◽  
pp. 31-46
Author(s):  
Diana Tirlea ◽  
Carmen Li ◽  
Alwynne B. Beaudoin ◽  
Emily Moffat
Keyword(s):  
Continuous Monitoring ◽  
Low Cost ◽  
Ease Of Use ◽  
Gelatin Capsules ◽  
Long Term Storage ◽  
Pros And Cons ◽  
Storage Methods ◽  
Term Storage

Abstract Museums use gelatin capsules to store small objects and specimens, despite limited documentation of their long-term viability. The Royal Alberta Museum (RAM of Canada) uses gelatin capsules to store seeds, bones, and plant material because of their ease of use, transparency, soft-bodied walls, size availability, and low cost. Recently, RAM staff reported damaged capsules from the palaeontology collections. We evaluated 499 capsules used to store specimens accessioned in 1986 and 1988 and investigated capsule properties using Fourier transform infrared spectroscopy and Oddy testing. Only 4.21% of inspected capsules were dented, cracked, and/or fractured. Based on interviews and testing, we determined that damage to capsules likely resulted during handling (i.e., applied force when opening). We conclude that gelatin capsules offer a good, inexpensive method for long-term storage of small, dried specimens in environmentally controlled conditions. Alternatives to gelatin capsules exist, although their pros and cons require evaluation before use. All storage methods require continuous monitoring for signs of container or specimen deterioration.

Low-Cost, Low-Tech Biosolids Treatment via Long-Term Storage: A Comparison of Two Pilot-Scale Studies

2018 ◽  
Vol 2018 (4) ◽  
pp. 1143-1150
Author(s):  
Jennifer G Becker ◽  
Karina Eyre ◽  
Tanner Keyzers ◽  
Christa Meingast ◽  
Eric A Seagren
Keyword(s):  
Low Cost ◽  
Pilot Scale ◽  
Long Term Storage ◽  
Term Storage

Assessment of Corrosion-Based Failure in Stainless Steel Containers Used for the Long-Term Storage of Plutonium-Based Salts

CORROSION ◽  
2009 ◽  
Vol 65 (3) ◽  
pp. 175-186 ◽  
Author(s):  
R. S. Lillard ◽  
D. G. Kolman ◽  
M. A. Hill ◽  
M. B. Prime ◽  
D. K. Veirs ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Long Term Storage ◽  
Term Storage

Development of a Synthetic Training Model for Canine Thoracocentesis

2020 ◽  
Vol 48 (2) ◽  
pp. 78-84
Author(s):  
Nicolas Haller ◽  
Jacob Reiss ◽  
Frank Seipel ◽  
Robert Weishar ◽  
Zachary Alden ◽  
...  
Keyword(s):  
Low Cost ◽  
Training Model ◽  
Immediate Feedback ◽  
Veterinary Students ◽  
Long Term Storage ◽  
Procedural Complications ◽  
Efficient Alternative ◽  
Cadaveric Model ◽  
Term Storage

Thoracocentesis, a procedure in which air or fluid is removed from the pleural space, is used to relieve respiratory distress, and as a diagnostic procedure in human and veterinary medicine. Veterinary students commonly learn and practice the procedure on canine cadavers which are in limited supply and are not amenable to long-term storage and use. Practicing thoracocentesis on a cadaveric model also provides limited feedback indicative of success and/or procedural complications. One commercial model for practicing canine thoracocentesis is available, but it costs over US$2000 and is excessively bulky. In order to improve the learning process for veterinary students, we have developed a reusable synthetic canine thorax model that accurately replicates the thoracocentesis procedure, provides immediate feedback to the students and reduces the need for canine cadavers. The low cost of our product provides an efficient alternative to cadavers for instruction in veterinary schools or hospitals.

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