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The Godane Inbox
Jun 27, 2022 ConnorDawg
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This is my first time meeting Ludwig, the biggest Twitch streamer I know and there won't be a warm up. We're diving straight off the deep end and battling against each other to see who's the better chess guru! Follow My Twitch: https://www.twitch.tv/cdawgva My Main YouTube: https://www.youtube.com/c/CDawgVA Go check out @Ludwig , he put up a great fight! Twitter: http://bit.ly/2fG2i5n Facebook: https://www.facebook.com/CDawgVA/ Discord: https://discord.gg/cdawgva Instagram:...
Topics: Youtube, video, People & Blogs, cdawgva, CDawgVA Streams, CDawgVA Highlights, CDawgVA Stream...
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Landing vehicles impart thermal and strain energy onto the landing site from the retrorocket exhaust. Depending on the design of the vehicle, the energy may be great enough to cause spallation at the landing site. This damage may be minor and repairable in the case of landing on a terrestrial landing pad. For missions to other planetary bodies, the spallation may cause the landing site to become uneven and unstable, as well as damage. Simulating this phenomenon in a laboratory or...
Topics: NASA Technical Reports Server (NTRS), Georgia Inst. of Tech., Hart, Kenneth
This study measured the compression after impact strength of IM7 carbon fiber laminates made from epoxy resins with various mode I and mode II toughness values to observe the effects of these toughness values on the resistance to damage formation and subsequent residual compression strength-carrying capabilities. Both monolithic laminates and sandwich structure were evaluated. A total of seven different epoxy resin systems were used ranging in approximate GI values of 245-665 J/sq m and...
Topics: NASA Technical Reports Server (NTRS), 5f0175ce39e241d2b8482efca887691b, Huntsville, AL, United...
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Jun 27, 2022 ConnorDawg
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This has been one of the hardest challenges yet. Even though it doesn't seem like much, like, 2 videos, that's it? Well, no, the raw footage was recorded in the span of 5 days and is longer than 18 hours. THIS IS NO CLICKBAIT! Follow My Twitch: https://www.twitch.tv/cdawgva My Main YouTube: https://www.youtube.com/c/CDawgVA 🐭 🐭 🐭 Follow IronMouse! https://www.youtube.com/channel/UChgPVLjqugDQpRLWvC7zzig https://www.twitch.tv/ironmouse https://twitter.com/ironmouse 🐭 🐭 🐭...
Topics: Youtube, video, People & Blogs, cdawgva, CDawgVA Streams, CDawgVA Highlights, CDawgVA Stream...
A variety of high-performance fibers, including Kevlar, Nomex, Vectran, and Spectra, have been tested for durability in the space environment, mostly the low Earth orbital environment. These materials have been tested in yarn, tether/cable, and fabric forms. Some material samples were tested in a simulated space environment, such as the Atomic Oxygen Beam Facility and solar simulators in the laboratory. Other samples were flown on the International Space Station as part of the Materials on...
Topics: NASA Technical Reports Server (NTRS), Finckenor, M. M., NASA Marshall Space Flight Center
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Digital model-based engineering (DMbE) is the use of digital artifacts, digital environments, and digital tools in the performance of engineering functions. DMbE is intended to allow an organization to progress from documentation-based engineering methods to digital methods that may provide greater flexibility, agility, and efficiency. The term 'DMbE' was developed as part of an effort by the Model-Based Systems Engineering (MBSE) Infusion Task team to identify what government organizations...
Topics: NASA Technical Reports Server (NTRS), 09df408b3d1e4b17ad03904c58d32984,...
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Topics: NASA Technical Reports Server (NTRS), Allton, Judith, NASA Johnson Space Center
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The PICA decomposition experiments of Bessire and Minton are investigated using 3D material response analysis. The steady thermoelectric equations have been added to the CHAR code to enable analysis of the Joule-heated experiments and the DAKOTA optimization code is used to define the voltage boundary condition that yields the experimentally observed temperature response. This analysis has identified a potential spatial non-uniformity in the PICA sample temperature driven by the cooled copper...
Topics: NASA Technical Reports Server (NTRS), NASA Johnson Space Center, Oliver, A. Brandon
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Primarily interested in improving ablation modeling for use in inverse reconstruction of flight environments on ablative heat shields. Ablation model is essentially a component of the heat flux sensor, so model uncertainties lead to measurement uncertainties. Non-equilibrium processes have been known to be significant in low density ablators for a long time, but increased accuracy requirements of the reconstruction process necessitates incorporating this physical effect. Attempting to develop a...
Topics: NASA Technical Reports Server (NTRS), NASA Johnson Space Center, Oliver, Brandon A.
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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The space-flight ionizing radiation (IR) environment is dominated by very high-kinetic energy-charged particles with relatively smaller contributions from X-rays and gamma rays. The Earth's surface IR environment is not dominated by the natural radioisotope decay processes. Dr. Steven Koontz's lecture will provide a solid foundation in the basic engineering physics of space radiation environments, beginning with the space radiation environment on the International Space Station and moving...
Topics: NASA Technical Reports Server (NTRS), Koontz, Steve, NASA Johnson Space Center
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The National Aeronautics and Space Administration (NASA) Astronaut Corps is a unique occupational cohort for which vast amounts of measures data have been collected repeatedly in research or operational studies pre-, in-, and post-flight, as well as during multiple clinical care visits. In exploratory analyses aimed at generating hypotheses regarding physiological changes associated with spaceflight exposure, such as impaired vision, it is of interest to identify anomalies and trends across...
Topics: NASA Technical Reports Server (NTRS), 45d7ee29a08f4b90be333b7126224efd,...
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On June 23, 2011, the International Space Station (ISS) was performing a routine 180 degree yaw maneuver in support of a Russian vehicle docking when the on board Russian Segment (RS) software unexpectedly declared two attitude thrusters failed and switched thruster configurations in response to unanticipated ISS dynamic motion. Flight data analysis after the maneuver indicated that higher than predicted structural loads had been induced at various locations on the United States (U.S.) segment...
Topics: NASA Technical Reports Server (NTRS), 16c6eb73373342c998177b508c9a0bad,...
Chondritic meteorites contain a diversity of particle components, i.e., chondrules and calcium-, aluminum-rich refractory inclusions (CAIs), that have survived since the formation of the Solar System. The chemical and isotopic compositions of these materials provide a record of the conditions present in the protoplanetary disk where they formed and can aid our understanding of the processes and reservoirs in which solids formed in the solar nebula, an important step leading to the accretion of...
Topics: NASA Technical Reports Server (NTRS), NASA Johnson Space Center, Simon, Justin
The majority of presolar silicate and oxide grains derive from low-mass red giant and asymptotic giant branch (AGB) stars of approximately solar metallicity (Z). A small subclass of presolar O-rich grains (less than 7%) is thought to originate from stars having lower-than-solar Z. These \"Group 3\" [1] grains have depletions in 18O and 17O that typically fall along or above the Galactic chemical evolution (GCE) line. Other Group 3 grains show greater 17O than 18O depletions and most...
Topics: NASA Technical Reports Server (NTRS), 239af3b5321541d385c2478af148bad7,...
Open-basin lake outlet valleys are incised when water breaches the basin-confining topography and overflows. Outlet valleys record this flooding event and provide insight into how the lake and surrounding terrain evolved over time. Here we present a study of the paleolake outlet Licus Vallis, a >350 km long, >2 km wide, >100 m deep valley that heads at the outlet breach of an approx.30 km diameter impact crater. Multiple geomorphic features of this valley system suggest it records a...
Topics: NASA Technical Reports Server (NTRS), 2653d714210c43829279661d4ffcc838, Austin, TX, United States,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Ancient lake deposits and valley networks on Mars provide strong evidence that its surface was once modified by liquid water, but the extent of that modification is still debated. Ancient lacustrine deposits in Milna Crater provide insight into the timescale and fluid volume required to construct fluvially derived sedimentary deposits near the Noachian-Hesperian boundary. Placing the lacustrine deposits their regional context in ParanΓ‘ Valles provides a quantitative measurement of the...
Topics: NASA Technical Reports Server (NTRS), 6375044549734c50914a65c203007310,...
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We evaluated the heavy ion and proton-induced single-event effects (SEE) for a 3D NAND flash. The 3D NAND showed similar single-event upset (SEU) sensitivity to a planar NAND of similar density and performance in the multiple-cell level (MLC) storage mode. However, the single-level-cell (SLC) storage mode of the 3D NAND showed significantly reduced SEU susceptibility. Additionally, the 3D NAND showed less MBU susceptibility than the planar NAND, with reduced number of upset bits per byte and...
Topics: NASA Technical Reports Server (NTRS), 17df8f7717c9402796e955afe0e5c14c,...
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At the end of James Webb Space Telescope (JWST) OTIS (Optical Telescope Element-OTE-Integrated Science Instrument Module-ISIM) cryogenic vacuum testing in NASA Johnson Space Centers (JSCs) thermal vacuum (TV) Chamber A, contamination control (CC) engineers are mooting the idea that chamber particulate material stirred up by the repressurization process may be kept from falling into the ISIM interior to some degree by activating instrument purge flows over some initial period before opening the...
Topics: NASA Technical Reports Server (NTRS), SGT, Inc., Woronowicz, Michael
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Endeavour crater, a Noachian-aged, 22 km diameter impact structure on Meridiani Planum, Mars, has been investigated by the Mars Exploration Rover Opportunuity for over 2000 sols (Mars days). The rocks of the western rim region (oldest to youngest) are: (i) the pre-impact Matijevic fm.; (ii) rim-forming Shoemaker fm. polymict impact breccias; (iii) Grasberg fm., fine-grained sediments draping the lower slopes; and (iv) Burns fm., sulfate-rich sandstones that onlap the Grasberg fm. The rim is...
Topics: NASA Technical Reports Server (NTRS), 37497f74f3ae4d009ee3f32ec0f8a0f3,...
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The mineral apatite (Ca5 (PO4)3(F, Cl, OH)) is known for its ability to constrain the petrogenesis of the rock in which it is hosted and for its ubiquity throughout the Solar System, as it is found in lunar, martian, and terrestrial rocks alike (McCubbin et. al, 2015). The abundance of volatile elements, and for this particular study, the elevated abundance of sulfur (S2-) in high-Al basalt samples bearing apatite, could provide more insight for inquiries posed about the behavior of volatiles...
Topics: NASA Technical Reports Server (NTRS), 767944675351475496fcb46229bc36ed,...
The principal mechanism for developing orbital debris environment models, is to make observations of larger pieces of debris in the range of several centimeters and greater using radar and optical techniques. For particles that are smaller than this threshold, breakup and migration models of particles to returned surfaces in lower orbit are relied upon to quantify the flux. This reliance on models to derive spatial densities of particles that are of critical importance to spacecraft make the...
Topics: NASA Technical Reports Server (NTRS), 3154efab88df4139a6e1eccbc11d08fb,...
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All asteroids surfaces imaged at the cm-scale reveal the presence of pond deposits. These ponds are important because it is likely all asteroid sample return missions will sample them, being the safest (very flat) places to touch down. Therefore, it is essential to understand the differences between the material at the pond surfaces and the host asteroid. Fortunately, some fine-grained cognate lithologies in chondrites show sedimentary features indicating that they sample asteroid ponds.
Topics: NASA Technical Reports Server (NTRS), 201f302df92a4f06977306e79f492779, Houston, TX, United States,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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CI chondrites are thought to approximate the bulk solar system composition since they closely match the composition of the solar photosphere. Thus, chemical differences between a planetary object and the CI composition are interpreted to result from fractionations of a CI starting composition. This interpretation is often made despite the secondary mineralogy of CI chondrites, which resulted from low-T aqueous alteration on the parent asteroid(s). Prevalent alteration and the relatively large...
Topics: NASA Technical Reports Server (NTRS), 0c584e9ec7a84479b6abdaf320d3f3d5,...
Studies of the inventory and distribution of water in lunar rocks have recently begun to focus on alkali suite samples as possible water repositories, particularly the most highly evolved granitoid lithologies. Although H analyses of feldspars in these rocks have so far pointed to 'low' (less than 20 ppm) H2O contents, there is sufficient variability in the dataset (e.g., 2-20 ppm) to warrant consideration of the petrogenetic factors that may have caused some granitoid-to-intermediate rocks to...
Topics: NASA Technical Reports Server (NTRS), 188e8cdea6cc45f3ba1e2f94bf3e323c, ARES Corp., Christoffersen,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Cores of differentiated bodies (Earth, Mars, Mercury, Moon, Vesta) contain light elements such as S, C, Si, and O. We have previously measured small effects of Si on metal-silicate partitioning of Ni and Co [1,2], and larger effects for Mo, Ge, Sb, As [2]. The effect of Si on many siderophile elements could be an important, and as yet unquantified, influence on the core-mantle partitioning of SE. Here we report new experiments designed to quantify the effect of Si on the partitioning of Bi, Cd,...
Topics: NASA Technical Reports Server (NTRS), ea956cbb83cc4bbaa216f897eaa36cef,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Laboratory studies of cometary dust collected in the stratosphere and returned from comet 81P/Wild 2 by the Stardust spacecraft have revealed ancient interstellar grains and molecular cloud organic matter that record a range of astrophysical processes and the first steps of planetary formation. Presolar materials are rarer meteorites owing to high temperature processing in the solar nebula and hydrothermal alteration on their asteroidal parent bodies. The greater preservation of presolar...
Topics: NASA Technical Reports Server (NTRS), 69d3b9f30e814118b4f1439ffe6b2963,...
Roughly 100km diameter primitive bodies (today's asteroids and TNOs; [1]) are thought to be the end product of so-called \"primary accretion\". They dominated the initial mass function of planetesimals, and precipitated the onset of a subsequent stage, characterized by runaway gravitational effects, which proceeded onwards to planetary mass objects, some of which accreted massive gas envelopes. Asteroids are the parents of primitive meteorites; meteorite data suggest that asteroids...
Topics: NASA Technical Reports Server (NTRS), 934bdc83f36f4baf8088179db0617c95,...
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No abstract available
Topics: NASA Technical Reports Server (NTRS), Hoffman, Stephen J., NASA Johnson Space Center
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Topics: NASA Technical Reports Server (NTRS), Amar, Adam, ce4f7dc7184c4d06b54402f74237a7cb, Droba, Justin,...
Northwest Africa (NWA) 10758 is a newly identified carbonaceous chondrite that is a Bali-like oxidized CV3. The large Ca-Al rich inclusion (CAI) in this sample is approx. 2.4 x 1.4 cm. The CAI is transitional in composition between type A and type B, with interior mineralogy dominated by melilite, plus less abundant spinel and Al-Ti rich diopside, and only very minor anorthite (Fig. 1A). This CAI is largely free of secondary alteration in the exposed section we examined, with almost no...
Topics: NASA Technical Reports Server (NTRS), 124f3b875f0d405d98a1055773375efc,...
The National Aeronautics and Space Administration (NASA) Safety & Mission Assurance (S&MA) directorate at the Johnson Space Center (JSC) has applied its knowledge and experience with Probabilistic Risk Assessment (PRA) to projects in industries ranging from spacecraft to nuclear power plants. PRA is a comprehensive and structured process for analyzing risk in complex engineered systems and/or processes. The PRA process enables the user to identify potential risk contributors such as,...
Topics: NASA Technical Reports Server (NTRS), 0dd6c3971e9e493b8a6c9942a771f3fd,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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During this internship the opportunity was granted to work with the Integrated, Graphics, Operations and Analysis Laboratory (IGOAL) team. The main assignment was to create 12 achievement patches for the Space Station training simulator called the \"NASA ISS Stowage Training Game.\" This project was built using previous IGOAL developed software. To accomplish this task, Adobe Photoshop and Adobe Illustrator were used to craft the badges and other elements required. Blender, a 3D...
Topics: NASA Technical Reports Server (NTRS), Crawford, Gary, Universities Space Research Association
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The Astromaterials Acquisition and Curation Office at NASA Johnson Space Center (JSC) is responsible for curating all of NASA's extraterrestrial samples. Under the governing document, NASA Policy Directive (NPD) 7100.10F+ derivative NPR 'Curation of Extraterrestrial Materials', JSC is charged with 'The curation of all extraterrestrial material under NASA control, including future NASA missions. 'The Directive goes on to define Curation as including'...documentation, preservation, preparation,...
Topics: NASA Technical Reports Server (NTRS), McCubbin, Francis M., NASA Johnson Space Center
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A prototype integrated liquid oxygen/liquid methane propulsion system was hot-fire tested at a variety of simulated altitude and thermal conditions in the NASA Glenn Research Center Plum Brook Station In-Space Propulsion Thermal Vacuum Chamber (formerly B2). This test campaign served two purposes: 1) Characterize the performance of the Plum Brook facility in vacuum accumulator mode and 2) Collect the unique data set of an integrated LOX/Methane propulsion system operating in high altitude and...
Topics: NASA Technical Reports Server (NTRS), 43361f2a8ae44d7dbf5acfd63880950e,...
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Jun 27, 2022 ConnorDawg
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Can Pokemon Unite fill the empty MOBA hole that League of Legends left behind? Follow My Twitch: https://www.twitch.tv/cdawgva My Main YouTube: https://www.youtube.com/c/CDawgVA Big ups to @Tectone for "investing" actual money into this game Twitter: http://bit.ly/2fG2i5n Facebook: https://www.facebook.com/CDawgVA/ Discord: https://discord.gg/cdawgva Instagram: http://bit.ly/2g1IZWM Video Edited By: https://twitter.com/MudanTV https://www.twitch.tv/mudantv Amazon Affiliate Links (I...
Topics: Youtube, video, People & Blogs, cdawgva, CDawgVA Streams, CDawgVA Highlights, CDawgVA Stream...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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A team of researchers from NASA Ames Research Center, Goddard Space Flight Center, the Jet Propulsion Laboratory, and Marshall Space Flight Center, along with university partners at UCLA, conducted an investigation to explore whether downscaling coarse resolution global climate model (GCM) predictions might provide valid insights into the regional impacts sought by decision makers. Since the computational cost of running global models at high spatial resolution for any useful climate scale...
Topics: NASA Technical Reports Server (NTRS), 6df3c11aaa3e47c08a24fd11dac94608,...
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As a coating made of highly porous zeolite materials, the Molecular Adsorber Coating (MAC) was developed to capture outgassed molecular contaminants, such as hydrocarbons and silicones. For spaceflight applications, the adsorptive capabilities of the coating can alleviate on-orbit outgassing concerns on or near sensitive surfaces and instruments within the spacecraft. Similarly, this sprayable paint technology has proven to be significantly beneficial for ground-based space applications, in...
Topics: NASA Technical Reports Server (NTRS), Abraham, Nithin S., NASA Goddard Space Flight Center
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Atomic Layer Deposition has been instrumental in providing a deposition method for multiple space flight applications. It is well known that ALD is a cost effective nanoadditive-manufacturing technique that allows for the conformal coating of substrates with atomic control in a benign temperature and pressure environment. Through the introduction of paired precursor gases, thin films can be deposited on a myriad of substrates from flat surfaces to those with significant topography. By providing...
Topics: NASA Technical Reports Server (NTRS), Dwivedi, Vivek H., NASA Goddard Space Flight Center
Providers of payloads carried aboard the International Space Station must conduct analyses to demonstrate that any planned gaseous venting events generate no more than a certain level of material that may interfere with optical measurements from other experiments or payloads located nearby. This requirement is expressed in terms of a maximum column number density (CND). Depending on the level of rarefaction, such venting may be characterized by effusion for low flow rates, or by a sonic...
Topics: NASA Technical Reports Server (NTRS), Stinger Ghaffarian Technologies, Inc., Woronowicz, Michael
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Venting techniques and design are an important implementation strategy for observatory and payload contamination control, and yet venting analysis has seen a topsey turvey history, at lease from the perspective of the simple Layman trying to design a black box. Additionally, designing the vent has competing controls from Safety and EMIEMC. In the days of Shuttle, Safety placed liens against the vents of blankets, boxes, and large structural items principally to protect cargo bay vents but also...
Topics: NASA Technical Reports Server (NTRS), Leiter, Stephen C., NASA Goddard Space Flight Center
Assessing the potential to bring 100 years of aeronautics knowledge to the entrepreneurs desktop to enable a design environment for emerging vertical lift vehicles is one goal for the NASAs Design Environment for Novel Vertical Lift Vehicles (DELIVER). As part of this effort, a system study was performed using a notional, urban aerial taxi system to better understand vehicle requirements along with the tools and methods capability to assess these vehicles and their subsystems using cryogenic...
Topics: NASA Technical Reports Server (NTRS), NASA Glenn Research Center, Snyder, Christopher A.
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The presentation will focus on the importance of interdisciplinary research for addressing future aerospace challenges. Examples of current research activities at NASA's Glenn Research Center will be provided to illustrate the importance of interdisciplinary research. Challenges with conducting interdisciplinary research will be discussed.
Topics: NASA Technical Reports Server (NTRS), Misra, Ajay, NASA Glenn Research Center
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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No abstract available
Topics: NASA Technical Reports Server (NTRS), Lopez, Isaac, NASA Glenn Research Center
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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This presentation covers the modeling and power performance of high power Mars surface solar arrays needed to power a human Mars base.
Topics: NASA Technical Reports Server (NTRS), 675971b0f2d042cdb42c0a89d0c66de4, Hampton, VA United States,...
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The objective of this study is the development of a comprehensive radiation model of the Neptunian environment for JPL mission planning. The ultimate goal is to provide a description of the high-energy electron and proton environments and the magnetic field at Neptune that can be used for engineering design. The JPL Neptune Radiation Model (NMOD) models the high-energy electrons and protons between 0.025 MeV and 5 MeV based on the California Institute of Technology's Cosmic Ray Subsystem and...
Topics: NASA Technical Reports Server (NTRS), b5904f3e3c9f4f3fb92c4fcf1d4fa506, Bastion Technologies, Inc.,...
We present the results of Single Event Effects (SEE) testing with high energy protons and with low and high energy heavy ions for electrical components considered for Low Earth Orbit (LEO) and for deep space applications.
Topics: NASA Technical Reports Server (NTRS), 109e524970e240df812e12d5bff2eebf,...
Use of remote sensing data for mapping and monitoring of forest biomass across large spatial scales can aid in addressing uncertainties in carbon cycle. Earlier, several researchers reported on the use of Synthetic Aperture Radar (SAR) data for characterizing forest structural parameters and the above ground biomass estimation. However, these studies cannot be generalized and the algorithms cannot be applied to all types of forests without additional information on the forest physiognomy, stand...
Topics: NASA Technical Reports Server (NTRS), NASA Marshall Space Flight Center, Vadrevu, Krishna Prasad
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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An integral part of the Systems Engineering process is the creation of a Concept of Operations (ConOps) for a given system, with the ConOps initially established early in the system design process and evolved as the system definition and design matures. As Integration Engineers in NASA's Launch Services Program (LSP) at Kennedy Space Center (KSC), our job is to manage the interface requirements for all the robotic space missions that come to our Program for a Launch Service. LSP procures and...
Topics: NASA Technical Reports Server (NTRS), a74d241e0e974719b03cb45cbace6b20, An integral part of the...
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The relative spectral response (RSR) characterization of the JPSS-1 VIIRS spectral bands has achieved at launch status in the VIIRS Data Analysis Working Group February 2016 Version 2 RSR release. The Version 2 release improves upon the June 2015 Version 1 release by including December 2014 NIST TSIRCUS spectral measurements of VIIRS VisNIR bands in the analysis plus correcting CO2 influence on the band M13 RSR. The T-SIRCUS based characterization is merged with the summer 2014 SpMA based...
Topics: NASA Technical Reports Server (NTRS), 3a843d0e49b4553689e3abf0240066f6, Dave Moyer, The Aerospace...
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Jun 27, 2022 ConnorDawg
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We're partnering up to defeat evil again and I'm going to show how alpha I am in Resident Evil 5 Follow My Twitch: https://www.twitch.tv/cdawgva My Main YouTube: https://www.youtube.com/c/CDawgVA 🐭 🐭 🐭 Follow IronMouse! https://www.youtube.com/channel/UChgPVLjqugDQpRLWvC7zzig https://www.twitch.tv/ironmouse https://twitter.com/ironmouse 🐭 🐭 🐭 Twitter: http://bit.ly/2fG2i5n Facebook: https://www.facebook.com/CDawgVA/ Discord: https://discord.gg/cdawgva Instagram:...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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In 2014 a team at NASA Goddard Space Flight Center (GSFC) studied the feasibility of using active aerocapture to reduce the chemical Delta V requirements for inserting a small scientific satellite into Titan polar orbit. The scientific goals of the mission would be multi-spectral imaging and active radar mapping of Titan's surface and subsurface. The study objectives were to: (i) identify and select from launch window opportunities and refine the trajectory to Titan; (ii) study the aerocapture...
Topics: NASA Technical Reports Server (NTRS), 295fd3734d21444aafd47085dcb54a73,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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A mission to one or both of our local Ice Giants (Uranus and Neptune) emerged as a high priority in the most recent Planetary Science Decadal Survey and was also specifically mentioned supportively in the Heliophysics Decadal Survey. In 2016, NASA convened a science definition team to study ice giant mission concepts in more detail. Uranus and Neptune represent the last remaining planetary type in our Solar System to have a dedicated orbiting mission. The case for a Uranus mission has been made...
Topics: NASA Technical Reports Server (NTRS), 0ac09c88bd0b4857879233e8ab55e891,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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We present the Small Next-Generation Atmospheric Probe (SNAP) as a secondary payload concept for future missions to giant planets. As a case study, we examine the advantages, cost and risk of adding SNAP to the future Uranus Orbiter and Probe flag-ship mission; in combination with the missions main probe, SNAP would perform atmospheric in-situ measurements at a second location.
Topics: NASA Technical Reports Server (NTRS), 267f6382b5d54298955ebbe56d10a92e,...
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Isotope geochemistry has played a critical role in understanding processes at work in and the history of solar system bodies. Application of these techniques to exoplanets would be revolutionary and would allow comparative planetology with the formation and evolution of exoplanet systems. The roadmap for comparative planetology of the origins and workings of exoplanets involves isotopic geochemistry efforts in three areas: (1) technology development to expand observations of the isotopic...
Topics: NASA Technical Reports Server (NTRS), 3faa517f80e9499b81c1778180c00fc4,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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From Voyager to a Vision for 2050: NASA and ESA have just completed a study of candidate missionsto Uranus and Neptune, the so-called ice giant planets. It is a Pre-Decadal Survey Study, meant to inform the next Planetary Science Decadal Survey about opportunities for missions launching in the 2020's and early 2030's. There have been no space flight missions to the ice giants since the Voyager 2 flybys of Uranus in 1986 and Neptune in 1989. This paper presents some conclusions of that study...
Topics: NASA Technical Reports Server (NTRS), 2b045c03ef134d1189446dcacb15f91c,...
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The design of a two-dimensional beam-combining network employing a parallel-plate superconducting waveguide with a mono-crystalline silicon dielectric is presented. This novel beam-combining network structure employs an array of magnetically coupled antenna elements to achieve high coupling efficiency and full sampling of the intensity distribution while avoiding diffractive losses in the multi-mode region defined by the parallel-plate waveguide. These attributes enable the structures use in...
Topics: NASA Technical Reports Server (NTRS), 3667605274074a28845c76deee5eb286,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Exploring the effects of size and geometry of normal metal features on the transition shapes and performance of transition-edge sensor microcalorimeters. The spectral resolution of transition-edge sensor (TES) microcalorimeters is very sensitive to the specific dependencies of the resistance R in the superconducting transition on the current I, magnetic field B, and temperature T. In particular, it has been shown that transitions that are very steep in (R,T) space lead to a significant noise...
Topics: NASA Technical Reports Server (NTRS), 2a5d334d15a4470d9a143883dc30b3d2,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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In this work, we use high- and low-magnitude optical microscope images, infrared camera images, and scanning electron microscope images to identify and describe the failure locations in heavy-ion-irradiated Schottky diodes.
Topics: NASA Technical Reports Server (NTRS), 445b3da21cce4604b8d8c0b41169c6a7,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Single-event effect (SEE) test data is presented on the Analog Devices ADV212. Focus is given to the test setup used to improve data quality and validate single-event latchup (SEL) protection circuitry.
Topics: NASA Technical Reports Server (NTRS), 7a904b25697c4446a02a75791db9ee5d,...
This part of the course first outlines the conventional Single Event Effect (SEE), radiation hardness assurance (RHA) approach, which emphasizes mission success. Next, Dr. Ladbury will discuss the challenges posed by new satellite platforms (e.g., cubesats, nanosats, etc.), where cost and schedule receive emphasis equal to if not greater than mission success. These additional pressures, along with growing demands to reduce size, weight and power, coupled with increased performance, drive many...
Topics: NASA Technical Reports Server (NTRS), Ladbury, Raymond, NASA Goddard Space Flight Center
This part of the course first outlines the conventional Single Event Effect (SEE), radiation hardness assurance (RHA) approach, which emphasizes mission success. Next, Dr. Ladbury will discuss the challenges posed by new satellite platforms (e.g., cubesats, nanosats, etc.), where cost and schedule receive emphasis equal to if not greater than mission success. These additional pressures, along with growing demands to reduce size, weight and power, coupled with increased performance, drive many...
Topics: NASA Technical Reports Server (NTRS), Ladbury, Ray, NASA Goddard Space Flight Center
Total ionizing dose and displacement damage testing was performed to characterize and determine the suitability of candidate electronics for NASA space utilization. Devices tested include optoelectronics, digital, analog, linear bipolar devices, and hybrid devices.
Topics: NASA Technical Reports Server (NTRS), 038660981e644d28b7473d7728019251,...
Total ionizing dose and displacement damage testing was performed to characterize and determine the suitability of candidate electronics for NASA space utilization. Devices tested include opto-electronics, digital, analog, linear bipolar devices, and hybrid devices.
Topics: NASA Technical Reports Server (NTRS), 0c01dc861d4e4cdaa066e55fcad0a295,...
NEPP Mission Statement: Provide NASA's leadership for developing and maintaining guidance for the screening, qualification, test, and reliable usage of electrical, electronic, and electromechanical (EEE) parts by NASA, in collaboration with other government Agencies and industry.
Topics: NASA Technical Reports Server (NTRS), Label, Kenneth A., NASA Goddard Space Flight Center
The paper presents the design, fabrication, and test results for a novel waveguide multimode directional coupler (MDC). The coupler fabricated from dissimilar frequency band waveguides, is capable of isolating power at the 2nd harmonic frequency from the fundamental power at the output port of a high power traveling-wave tube amplifier. The major advantage of the MDC is significantly lower insertion loss compared to a diplexer. The presentation slides for the paper that was approved is...
Topics: NASA Technical Reports Server (NTRS), b5f563df47564245a40d5135475f61bf, Cleveland, OH United...
Ceramic matrix composites (CMCs) such as SiCSiC are currently being designed and implemented in high temperature sections of aerospace turbine engines. Such components will be subject to through-thickness thermal gradients, which may affect the durability. In this study, SiCSiC CMCs with a hybrid chemical vapor infiltrated (CVI) and polymer infiltration and pyrolysis (PIP) matrix were loaded in tension while one surface was heated with a laser and the opposite surface was cooled. The samples...
Topics: NASA Technical Reports Server (NTRS), 1e43ffd98f9b4a1db08d7e95cf3b1993,...
Preliminary evaluation of altitude scaling for turbofan engine ice crystal icing simulation was conducted during the 2015 LF11 engine icing test campaign in PSL.The results showed that a simplified approach for altitude scaling to simulate the key reference engine ice growth feature and associated icing effects to the engine is possible. But special considerations are needed to address the facility operation limitation for lower altitude engine icing simulation.
Topics: NASA Technical Reports Server (NTRS), Ohio Aerospace Inst., Tsao, Jen-Ching
There is increasing interest in the degradation studies of thermal and environmental barrier coatings (TEBCs) of gas turbines by molten CaO-MgO-Al2O3-SiO2 (CMAS). CMAS minerals are usually referred as silica-containing sand dust and volcano ash materials that are carried by the intake air into gas turbines, e.g. aircraft engines. The low-melting deposits react at high temperatures (1000C) with the coating materials. This causes degradation and accelerated coating failure of the static and...
Topics: NASA Technical Reports Server (NTRS), Cleveland, OH, United States, Costa, Gustavo,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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This presentation gives a high level summary of the progress made on the PSL capability and NASA engine icing research.
Topics: NASA Technical Reports Server (NTRS), Flegel, Ashlie, NASA Glenn Research Center
Hybrid composite gear technology is being investigated to increase power density in rotorcraft drive systems. These gears differ from conventional steel gears in that the structural web material is replaced with a lightweight carbon fiber composite. Past studies have focused on performance of this technology under normal operating conditions, however, for this technology to be viable it must also withstand adverse conditions. The study presented here evaluates the performance of hybrid gears...
Topics: NASA Technical Reports Server (NTRS), 16b20a9ff1cd4344a274dbc573819af7,...
NASA and the Aviation Industry is looking into reduced crew operations (RCO) that would cut today's required two-person flight crews down to a single pilot with support from ground-based crews. Shared responsibility across air and ground personnel will require highly reliable and secure data communication and supporting automation, which will be safety-critical for passenger and cargo aircraft. This paper looks at the different types and degrees of authority delegation given from the air to the...
Topics: NASA Technical Reports Server (NTRS), 19eeb25fa404421d9eaa5f876e853e3c, Driscoll, Kevin, Honeywell...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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Though steel is the dominant material of choice for mechanical components (bearings and gears) it has intrinsic limitations related to corrosion and plastic deformation. In contrast, dimensionally stable nickel-rich Ni-Ti alloys, such as Nitinol 60, are intrinsically rustproof and can withstand high contact loads without damage (denting). Over the last decade, focused RD to exploit these alloys for new applications has revealed the science behind NiTi's remarkable properties. In this...
Topics: NASA Technical Reports Server (NTRS), DellaCorte, Christopher, NASA Glenn Research Center
In the fourth installment of the celebrated series of five papers entitled \"Towards the ultimate conservative difference scheme\", Van Leer (1977) introduced five schemes for advection, the first three are piecewise linear, and the last two, piecewise parabolic. Among the five, scheme I, which is the least accurate, extends with relative ease to systems of equations in multiple dimensions. As a result, it became the most popular and is widely known as the MUSCL scheme (monotone...
Topics: NASA Technical Reports Server (NTRS), Huynh, H. T., NASA Glenn Research Center
Over the last 15 years, over-the-rotor acoustic treatments have been evaluated by NASA with varying success. Recently, NASA has been developing the next generation of over-the-rotor acoustic treatments for fan noise reduction. The NASA Glenn Research Centers Advanced Noise Control Fan was used as a Low Technology Readiness Level test bed. A rapid prototyped in-duct array consisting of 50 microphones was employed, and used to correlate the in-duct analysis to the far-field acoustic levels and to...
Topics: NASA Technical Reports Server (NTRS), 1a2d917b6c914cd9a88b97aa10112416,...
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Unmanned aircraft systems (UAS) will have a major impact on future aviation. Medium and large UA operating at altitudes above 3000 feet will require access to non-segregated, that is, controlled airspace. In order for unmanned aircraft to be integrated into the airspace and operate with other commercial aircraft, a very reliable command and control (C2, a. k. a. control and non-payload communications, (CNPC)) link is required. For operations covering large distances or over remote locations, a...
Topics: NASA Technical Reports Server (NTRS), 95d250de960c4ae499f9ad18b7bedde8, Bishop, William D.,...
Computational modeling of the erosion of polymers caused by atomic oxygen in low Earth orbit (LEO) is useful for determining areas of concern for spacecraft environment durability. Successful modeling requires that the characteristics of the environment such as atomic oxygen energy distribution, flux, and angular distribution be properly represented in the model. Thus whether the atomic oxygen is arriving normal to or inclined to a surface and whether it arrives in a consistent direction or is...
Topics: NASA Technical Reports Server (NTRS), 25f3e1f196d44cd5bc91b1c1745dc00a,...
Microwave-based plasma pyrolysis technology is being studied as a means of supporting oxygen recovery in future spacecraft life support systems. The process involves the conversion of methane produced from a Sabatier reactor to acetylene and hydrogen, with a small amount of solid carbon particulates generated as a side product. The particles must be filtered before the acetylene is removed and the hydrogen-rich gas stream is recycled back to the CRA. We discuss developmental work on porous...
Topics: NASA Technical Reports Server (NTRS), 17970cc8cc34498999e19b2a31906082,...
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Results are reported from recent tests where hydrothermal flames spontaneously ignited in a Supercritical Water Oxidation (SCWO) Test Cell. Hydrothermal flames are generally categorized as flames that occur when appropriate concentrations of fuel and oxidizer are present in supercritical water (SCW); i.e., water at conditions above its critical point (218 atm and 374 C). A co-flow injector was used to inject fuel, comprising an aqueous solution of 30-vol to 50-vol ethanol, and air into a...
Topics: NASA Technical Reports Server (NTRS), 195f3274cac246f880499b360fe53fe1,...
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The International Space Station (ISS) is a unique indoor environment which serves as both home and workplace to the astronaut crew. There is currently no particulate monitoring, although particulate matter requirements exist. An experiment to collect particles in the ISS cabin was conducted recently. Two different aerosol samplers were used for redundancy and to collect particles in two size ranges spanning from 10 nm to hundreds of micrometers. The Active Sampler is a battery operated...
Topics: NASA Technical Reports Server (NTRS), Meyer, Marit E., NASA Glenn Research Center
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Jun 27, 2022 ConnorDawg
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I've trained 2 years for this. It's time to finally get all of my Japanese friends together and show off my skills! Follow My Twitch: https://www.twitch.tv/cdawgva My Main YouTube: https://www.youtube.com/c/CDawgVA Twitter: http://bit.ly/2fG2i5n Facebook: https://www.facebook.com/CDawgVA/ Discord: https://discord.gg/cdawgva Instagram: http://bit.ly/2g1IZWM Video Edited By: https://twitter.com/MudanTV https://www.twitch.tv/mudantv Amazon Affiliate Links (I Get Commission if used): My Audio...
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As interest in long duration effects of space habitation increases, understanding the behavior of model organisms living within the habitats engineered to fly them is vital for designing, validating, and interpreting future spaceflight studies. Only a handful of papers have previously reported behavior of mice and rats in the weightless environment of space (Andreev-Andrievskiy, et al., 2013; Cancedda et al., 2012; Ronca et al., 2008). The Rodent Research Hardware and Operations Validation...
Topics: NASA Technical Reports Server (NTRS), 084aceb7bcbe4f76898b605549c7fe85,...
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BOS for flight test focusing on aircraft operations and piloting.
Topics: NASA Technical Reports Server (NTRS), 2627d0ba08e74a52be03f5cb527be618, Banks, Dan, Edwards, CA...
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Jun 27, 2022 ConnorDawg
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Media share is back and stakes are higher than ever before! If you can make me laugh, I'll PayPal you $150 on the spot. Also, if you want to join in and try to make me laugh yourself then join me on Twitch https://www.twitch.tv/cdawgva Twitter: http://bit.ly/2fG2i5n Facebook: https://www.facebook.com/CDawgVA/ Discord: https://discord.gg/cdawgva Instagram: http://bit.ly/2g1IZWM Video Edited By: https://twitter.com/MudanTV https://www.twitch.tv/mudantv Amazon Affiliate Links (I Get Commission if...
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Jun 27, 2022 ConnorDawg
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During my many countless years of voice acting, I've done everything, commercials, abridged series etc. But one genre that I've only slightly gotten into is video games! But now I'm a major part of this game, Earth Defense Force World Brothers. Not to mention, Joey got a role in it too. How do you think my voice acting fares in this game? Follow My Twitch: https://www.twitch.tv/cdawgva My Main YouTube: https://www.youtube.com/c/CDawgVA Twitter: http://bit.ly/2fG2i5n Facebook:...
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The current work compares experimentally and computationally obtained nitric oxide (NO) planar laser-induced fluorescence (PLIF) images of the mixing flowfields for three types of high-speed fuel injectors: a strut, a ramp, and a rectangular flush-wall. These injection devices, which exhibited promising mixing performance at lower flight Mach numbers, are currently being studied as a part of the Enhanced Injection and Mixing Project (EIMP) at the NASA Langley Research Center. The EIMP aims to...
Topics: NASA Technical Reports Server (NTRS), 0572e3287d4443678358b0a98ee8683d,...
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New rhombohedral super-hetero-epitaxy technology was developed at NASA. This epitaxy technology enables the growth of unprecedented cubic-trigonal hybrid single crystal structures with lattice match on sapphire (Al2O3) substrates, hence with little strain and very few defects at the interface.
Topics: NASA Technical Reports Server (NTRS), a48f37cd2563426bbf09d2fc4099f9b5, Choi, Sang H., Duzik, Adam...
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Contributions of the unstructured Reynolds-averaged Navier-Stokes code, FUN3D, to the 3rd AIAA Propulsion Aerodynamics Workshop are described for the diffusing IFCPT S-Duct. Using workshop-supplied grids, results for the baseline S-Duct, baseline S-Duct with Aerodynamic Interface Plane (AIP) rake hardware, and baseline S-Duct with flow control devices are compared with experimental data and results computed with output-based, off-body grid adaptation in FUN3D. Due to the absence of influential...
Topics: NASA Technical Reports Server (NTRS), 1cd43c5181e6432da6b69f9d2e66d18e, Davis, Zach S., Fort Worth,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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No abstract available
Topics: NASA Technical Reports Server (NTRS), 0a3fa2b2693d431f8f3ddd54043192ca,...
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Jun 27, 2022 NASA Technical Reports Server (NTRS)
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No abstract available
Topics: NASA Technical Reports Server (NTRS), Clinton, R. G., Jr., NASA Marshall Space Flight Center
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Commercial activated carbons from Calgon (207C and OVC) and Cabot Norit (RB2 and GCA 48) were evaluated for use in spacecraft trace contaminant control filters. The Polanyi potential plots of the activated carbons were compared using to those of Barnebey-Cheney Type BD, an untreated activated carbon with similar properties as the acid-treated Barnebey-Sutcliffe Type 3032 utilized in the TCCS. Their adsorptive capacities under dry conditions were measured in a closed loop system and the sorbents...
Topics: NASA Technical Reports Server (NTRS), Ascentech Enterprises, Inc.,...
Cold plasma (CP) cleaning is a dry, non-thermal process, which can provide broad-spectrum antimicrobial activity yet reportedly causes little to no damage to the object being sanitized. Since cold plasma uses no liquids, it has the distinct advantage when used in microgravity of not having to separate liquids from the item being cleaned. This paper will present results on an effort to use low pressure CP to disinfect or sterilize materials for in space applications. Exposure times from 0 to 60...
Topics: NASA Technical Reports Server (NTRS), 7eea8c0090474016a41a9f9deed120e5,...
The NASA Near Earth Network (NEN) consists of globally distributed tracking stations, including NASA, commercial, and partner ground stations, that are strategically located to maximize the coverage provided to a variety of orbital and suborbital missions, including those in LEO, GEO, HEO, lunar and L1/L2 orbits. The NENs future mission set includes and will continue to include CubeSat missions. The majority of the CubeSat missions destined to fly on EM-1, launching in late 2018, many in a...
Topics: NASA Technical Reports Server (NTRS), 3628844a53ec445f943baff202cadd66,...
NASAs Earth Observing System Data Information System (EOSDIS) manages Earth Observation satellites and the Distributed Active Archive Centers (DAACs), where the data is stored and processed. The challenge is that Earth Observation data is complicated. There is plenty of data available, however, the science teams have had a top-down approach: define what it is you are trying to study -select a set of satellite(s) and sensor(s), and drill down for the data.Our alternative is to take a bottom-up...
Topics: NASA Technical Reports Server (NTRS), 92882ef5dfb1481285311a423db0abaf, Bagwell, Ross, Berrick,...
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We describe the 2016 update of the NASA Earth Science Technology Office (ESTO) investment strategy in the area of lidar technologies as pertaining to NASAs Earth Science measurement goals in the next decade.
Topics: NASA Technical Reports Server (NTRS), 089ce16957d04ba48ba63d5aff6252af,...
A loop heat pipe (LHP) is a very versatile heat transfer device that can transport a large heat load over a long distance with a small temperature difference. All LHPs currently servicing orbiting spacecraft are designed to operate in the room temperature range. Future space telescopes and space-based Earth resource imaging satellites require passive cryogenic heat transport devices that can thermally couple remote cryocoolers to sensor or instrument of interest while providing the capability...
Topics: NASA Technical Reports Server (NTRS), f2ca9f227cec477eac2210aee1675bdf, Greenbelt, MD United...
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Contamination control issues are particularly challenging for long-term human spaceflight and are associated with the search for life, dynamic environmental conditions, human-robotic-environment interaction, sample collection and return, biological processes, waste management, long-term environmental disturbance, etc. These issues impact mission success, human health, planetary protection, and research and discovery. Mitigation and control techniques and strategies may include and integrate...
Topics: NASA Technical Reports Server (NTRS), 41dfdaa58ed24b1fb268b79427e9d4b0,...
The James Webb Space Telescope (JWST), set to launch in 2018, is NASAs next-generation flagship telescope. The Optical Telescope Element (OTE) and Integrated Science Instrument Module (ISIM) contain all of the optical surfaces and instruments to capture and analyze the telescopes infrared targets. The integrated OTE and ISIM are denoted as OTIS, and will be tested as a single unit in a critical thermal-vacuum test in mid-2017 at NASA Johnson Space Centers Chamber A facility. The payload will be...
Topics: NASA Technical Reports Server (NTRS), 123248787ae34c4f8cf91d85b4872dda,...
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Jun 27, 2022 ConnorDawg
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Things really got out of hand this time and she blocked me...I shouldn't have done what I did Follow My Twitch: https://www.twitch.tv/cdawgva My Main YouTube: https://www.youtube.com/c/CDawgVA 🐭 🐭 🐭 Follow IronMouse! https://www.youtube.com/channel/UChgPVLjqugDQpRLWvC7zzig https://www.twitch.tv/ironmouse https://twitter.com/ironmouse 🐭 🐭 🐭 Twitter: http://bit.ly/2fG2i5n Facebook: https://www.facebook.com/CDawgVA/ Discord: https://discord.gg/cdawgva Instagram:...
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AZ-2000-IECW white paint and StaMet black Kapton have been evaluated for the Kevlar/polyimide shells that enclose the Solar Probe Plus Magnetometer (MAG) sensors and multilayer insulation. Flight qualification testing on AZ-2000-IECW painted Kevlar/polyimide laminate was completed at Goddard Space Flight Center. This paint potentially meets all the requirements. However, it has no flight heritage. StaMet is hotter in the sun, and is specular. The results of the MAG thermal balance test show...
Topics: NASA Technical Reports Server (NTRS), Choi, Michael K., NASA Goddard Space Flight Center
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Build-to-Print designs, or rebuilds of flight proven designs, are attractive to mission stakeholders, as they give the appearance of minimal engineering development cost, risk, and schedule. The reality is that seldom is a project an exact duplicate of a predecessor. Mission reclassification, improvements in hardware, and science objective changes can all serve as a source of requirements and design creep and have ramifications often not fully anticipated during initial proposals. The Thermal...
Topics: NASA Technical Reports Server (NTRS), 41ed7dc2bcdf46a4af5ce64892329b06, Edge Space Systems,...