scholarly journals Development and investigation of means of transportation, storage, gasification and refueling of cryogen liquids of space systems

2020 ◽  
Vol 324 ◽  
pp. 01001
Author(s):  
Ivan A. Arkharov ◽  
Anatoly I. Smorodin ◽  
Oleg Ya. Cheremnykh
Keyword(s):  
External Source ◽  
Space Systems ◽  
Cryogenic Storage ◽  
Supercritical Parameters ◽  
Fuel Tanks ◽  
Product Delivery ◽  
Gasification Plant ◽  
Lng Tank ◽  
Hydrogen Mass

The paper describes the development of hydrogen, oxygen, LNG (tank cars, container cars) stationary devices based on the existing constructions. The investigation results of liquid hydrogen losses on experimental cryogenic storage and transport tanks with different thermal insulation (multilayer-vacuum, powder-vacuum, screen-vacuum (with a nitrogen screen of different designs)) are presented. The paper presents the results of research on obtaining and maintaining pressure in the tank of a gasification plant with hydrogen supercritical parameters for long-term product delivery to the customer at variable or constant flowrate, both using an external source of hydrogen and a part of the hydrogen supplied to the consumer as a heat carrier. The paper presents a method and equipment of refueling the Orbiter fuel tanks with high-purity hydrogen for variable hydrogen mass and different number of tanks.

Long-term cryogenic storage of purified adult human islets of Langerhans

Diabetes ◽  
1989 ◽  
Vol 38 (3) ◽  
pp. 386-396 ◽  
Author(s):  
N. M. Kneteman ◽  
D. Alderson ◽  
D. W. Scharp ◽  
P. E. Lacy
Keyword(s):  
Islets Of Langerhans ◽  
Human Islets ◽  
Cryogenic Storage ◽  
Adult Human ◽  
Human Islets Of Langerhans

The problem of ballistic design of the space system Earth remote sensing in stable near-circular sun-synchronous orbits with long-term spacecraft lifetime

2018 ◽  
pp. 3-9
Author(s):  
V. M. Artyushenko ◽  
D. Y. Vinogradov
Keyword(s):  
Remote Sensing ◽  
Target Function ◽  
Normal Operation ◽  
Space Systems ◽  
Light Conditions ◽  
Space System ◽  
Earth Remote Sensing ◽  
Synchronous Orbit ◽  
Favorable Conditions

The article deals with the issues related to the problem of ballistic design of the space system of remote sensing of the Earth on stable near-circular solar-synchronous orbits with long-term existence of spacecraft. We propose a rational method of maintaining a solar-synchronous orbit in given light conditions with prolonged active lifetime of space systems. In solving this problem, the total time of normal operation of the system for a given period of operation, during which the most favorable conditions for the use of spacecraft are provided on the main parts of orbits, is taken as a target function.

Frozen fungi: cryogenic storage is an effective method to storeFusariumcultures for the long-term

2018 ◽  
Vol 173 (2) ◽  
pp. 133-140 ◽  
Author(s):  
K.M. Webb ◽  
G. Holman ◽  
S. Duke ◽  
S. Greene ◽  
K. McCluskey
Keyword(s):  
Cryogenic Storage

Research of Large LNG Tank Structure

2014 ◽  
Vol 1070-1072 ◽  
pp. 378-382
Author(s):  
Ting Ke Li ◽  
Jia Di Li ◽  
Li Fu Xiao ◽  
Wei Li
Keyword(s):  
Storage Tank ◽  
Material Selection ◽  
Type Material ◽  
Size Optimization ◽  
Construction Technology ◽  
Cryogenic Storage ◽  
Lng Tank ◽  
Over Time

In recent years, the demand of Large LNG storage tank increases over time, but large LNG cryogenic storage tank has not yet established a series of standards and norms, and tank construction technology is also lagging behind. Aiming at the design of the tank form a single, smaller, did not tackle the issue of, this paper mainly discusses from Large LNG tanks, such as type, material selection, structure ,size optimization and so on, which can provide reference for independent construction of storage tank.

Low selenocentric orbits stability analysis

2020 ◽  
Author(s):  
Chongrui Du ◽  
O.L. Starinova
Keyword(s):  
Rate Of Change ◽  
The Sun ◽  
Space Systems ◽  
The Moon ◽  
Orbital Structure ◽  
Motion Modeling ◽  
The Earth ◽  
Long Time ◽  
The Stability

The tasks of studying the Moon require long-term functioning space systems. Most of the low selenocentric orbits are known to be unstable, which requires a propellant to maintain the orbital structure. For these orbits, the main disturbing factors are the off-center gravitational field of the Moon and the gravity of the Earth and the Sun. This paper analyzes the stability of low selenocentric orbits according to passive motion modeling and takes into account these main disturbing factors. We put forward a criterion for determining the stability of the orbit and used it to analyze the circular orbit of the Moon at an altitude of 100 kilometers. According to different initial data and different dates, we obtained ranges of the Moon’s orbits with good stability. At the same time, we analyzed the rate of change in the longitude of the ascending node, and found a stable low lunar orbit which can operate for a long time.

Vital status ascertainment in cancerlinq discovery (CLQD): Improvement in mortality capture with a supplemental data source.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 7064-7064
Author(s):  
Danielle Potter ◽  
Melinda Kaltenbaugh ◽  
Shaum Kabadi ◽  
Aliki Taylor ◽  
Esther Pascual ◽  
...  
Keyword(s):  
Pearson Correlation ◽  
External Source ◽  
Real World Data ◽  
Clinical Cancer Research ◽  
Vital Status ◽  
Time To Death ◽  
External Data ◽  
Highly Correlated ◽  
Death Data

7064 Background: Overall survival (OS) is the gold standard outcome in clinical cancer research but many clinical trials cannot assess long-term OS. Real-world data sources can be used to calculate long-term OS, but only if vital status is accurately captured. Methods: The primary goal was to assess concordance of death dates from CLQD and an external source, and the effect of incorporation of external death data on estimates of OS. CLQD obtains electronic medical record (EMR) data from participating US oncology sites. Under-reporting of vital status is a common problem with EMR data; we investigated the value of including death data from a commercially available database, obituarydata.com (OBD) into CLQD. OBD pulls death data from published obituaries across the US. A matching algorithm is used to match patients in CLQD and OBD. OBD death data from breast, lung, ovarian, and pancreatic cancer patients diagnosed between 2010–2018 supplemented the CLQD in this study. OS was calculated using Kaplan-Meier estimation; Pearson correlation was used for comparing time to death. Results: The addition of OBD modestly changes OS estimates (see Table). Among a subset of patients with death dates in both CQLD and OBD, dates were highly correlated for breast (r = 0.98), lung (r = 0.93), ovarian (r = 0.99), and pancreatic (r = 0.88) cancers. When date differences existed, they were ≤10 days for > 95% of the patients. These results suggest death dates are reliable in CLQD EMRs. OS curves were as expected, with OS decreasing by stage and age at diagnosis. Conclusions: Incorporating OBD modestly improves OS estimates and shows that when death data is present in CLQD, it is reliable. Future enhancements will focus on improving sensitivity of mortality ascertainment with external data linkages, without compromising specificity. [Table: see text]

Long-term preservation of a collection of Rhizoctonia solani using cryogenic storage

2011 ◽  
Vol 158 (3) ◽  
pp. 297-304 ◽  
Author(s):  
K.M. Webb ◽  
A.L. Hill ◽  
J. Laufman ◽  
L.E. Hanson ◽  
L. Panella
Keyword(s):  
Rhizoctonia Solani ◽  
Cryogenic Storage ◽  
Long Term Preservation

The Influence of the Temperature and Ageing Time on the NiCr23Co12Mo Alloy Microstructure

2017 ◽  
Vol 68 (4) ◽  
pp. 737-741 ◽  
Author(s):  
Marek Sroka ◽  
Marcin Nabialek ◽  
Michal Szota ◽  
Adam Zielinski
Keyword(s):  
Ageing Time ◽  
Strain Analysis ◽  
Alloy Material ◽  
Supercritical Parameters ◽  
Inconel 617 ◽  
Quantitative Identification ◽  
Alloy Microstructure ◽  
Long Term Impact ◽  
New Generation

The NiCr23Co12Mo alloy (Inconel 617) is a material used for example in the production of superheater boilers with ultra-cool supercritical parameters of work. The paper presents the results of microstructure changes after the long-term impact of temperature and strain. Analysis of the microstructure was carried out using scanning electron microscopy. Qualitative and quantitative identification of precipitations were conducted using X-ray analysis of the phase composition. Was studied the influence of ageing on tested alloy precipitations. The results of the study are the database alloy material of the new generation, which is used in the activities of the diagnostic elements of pressure parts of boilers.

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