RETRIEVAL · RECEIPT · MEASURED 2026-10-02
NASA technical reports
Technical reports from the NASA Technical Reports Server, many of them scanned.
1,210 documents · 378,725 passages · 200 questions scored
METHOD · AND ITS LIMIT
HOW IT IS MEASURED.
200 questions per corpus, each naming its subject, one labelled passage per question, scored on the product's retrieval receipt; nDCG@10 with a bootstrap 95% interval; questions are model-written and so easier than human test sets: use these to compare configurations, not as an absolute claim.
20 OF 200 QUESTIONS · PICKED BY HASH, NOT BY HAND
THE QUESTIONS, WITH THEIR RESULTS.
A fixed sample across the results: passages ranked first, passages found lower in the ten, and misses.
In what journal was the paper on modal dependence of the photoelastic coefficient published, according to NASA-CR-194090?
Labelled document: Virginia Tech — Final Report — September 1991
"Modal Dependence of the Photoelastic Coefficient in Multimode, Step-Index Optical Fiber Time Domain Systems, A. Vengsarkar, D. Thomas, B. Zimmermann, and R. Claus, IEEE Photon Tech. Ltrs, Vol. 2, No. 11, November 1990, pp. 812815. 3. Conference Papers Measurement and Control of Flexible…
According to the NASA report on the Nondestructive Evaluation of Additive Manufacturing, what institution is pioneering the use of neutron tomography imaging to map residual stress in 3D-printed components?
Labelled document: NASA — Nondestructive Evaluation of Additive Manufacturing State-of-the-Discipline Report — November 2014
feedback. Thermal imaging to monitor the weld pool temperature, optical imaging to measure shape and distortion during the build, and techniques for addressing residual stress, homogeneity, and defects are areas for development. Residual Stress – Residual stress is an inherent problem with parts…
What testing procedures were used in the UTM UAS Service Supplier Development project to evaluate UAS Operator Clients during Technical Capability Level 2 (TCL2)?
Labelled document: NASA UTM Project — Technical Memo — 2018
3.2. TCL2: October 2016 and Spring 2017 TCL2 was performed in two key steps. First, NASA flew its own demonstration in Oct 2016 [Johnson 2017][Homola 2017]. The architecture was moving toward a distributed and federated network of USSs, but in this demo there was only a single USS provided by…
What specific laboratory procedures and analytical factors were evaluated to determine the causes of measurement discrepancies in the NASA/TM-2002-211606 chlorophyll analysis inter-calibration exercise?
Labelled document: NASA Goddard Space Flight Center — Technical Memorandum — June 2002
to yield equivalent (when their (unknown also were distributed. ity of all laboratories in To minimize content of participating laboratories' was assessed with unknown sample chl a standards to normalize of undisclosed from caliincreases Laboratory-prepared tions) and laboratory-prepared Sources…
What was the state of the art power level for the silver-zinc primary battery power system in 1967?
Labelled document: McDonnell Douglas Corporation — Parametric Study of Space Power Systems Final Report — November 1968
What are the three core categories of tools and gear required for performing maintenance according to the Boeing OLF Study Technical Report?
Labelled document: Orbiting Launch Facility study — Technical Report — October 1965
spares and maintenance equipment will be The zero-gravity environment will present requirements in that all direction. Yet, it must the need arises. The identify Maiutenance the basic equipment must be possible to & Repair Analysis types of equipment three basic tool boxes would One set each of…
According to the Army Ballistic Missile Agency's Manned Lunar Circumnavigation report, what kind of battery system provides power to the two-person capsule?
Labelled document: Army Ballistic Missile Agency — Preliminary Study Report — October 1959
The manned capsule has a configuration similar to the re- entry nose cone of the JUPITER ballistic missile. Control sur- faces provide capability for maneuvering during re-entry. The capsule can house two men, their artificial environment, food and water supply, instruments for observations,…
What formula-derived accuracy is expected when converting ionospheric critical frequencies into electron content values according to NASA Technical Report No. 8 on Cislunar Electron Content?
Labelled document: Stanford University Radioscience Laboratory — Technical Report No. 8 — May 1965
In the NASA Contract NAS 2-5078 report on permafrost, how is hydraulic conductivity defined in field terms for water-bearing beds?
Labelled document: NASA technical report on permafrost by Lourenco and Ward, October 1970
Why was the original launch of the Viking-1 spacecraft delayed past its scheduled August 11 date?
Labelled document: Viking-1 spacecraft — Post Launch Report — August 1975
As of this report, the spacecraft i s i n excellent operating condition. A l l events were achieved CIS planned (see Table 1) and the spacecraft i s operating i n a cruise mode. The first Viking launch was scheduled for August 11, 1975. During prelaunch tests o f the Launch Vehicle's solid rocket…
Who edited NASA's CP-2199 conference publication on spacecraft dynamics as referenced in report NASA TM-82504?
Labelled document: NASA TM-82504 — Technical Memorandum — October 1982
(below one arc second). and it is thus an effective complement to AXAF and other future soft X-ray facilities. : , i 1 NASA CONFERENCE PUBLICATIONS CP-2 192 December 1981 Proceedings: Fiftt Annual Workshop on Meteorological and Environmental. Inputs to Aviation Systems. Edited by Dennis W. Camp…
What guidelines are recommended regarding radioactive material during an accidental atmospheric return in the NASA report "Fission Reactor Inadvertent Reentry"?
Labelled document: Fission Reactor Inadvertent Reentry — NASA report — August 2019
General Design Criteria (GDCs) were used in all space reactor programs after SP-100 including Topaz II and the Prometheus. GDCs are intended to provide fundamental guidance to designers and are at a level in between high-level policy, such as issued by the White House, and specific design and…
What sensitivity variables affect the plate membrane modulus 11 according to NASA report CR-2000-209786?
Labelled document: PCEMCAN code enhancement report by Ashwin Sest and Shah Inc for NASA, February 2000
NASAJCR--2000-209786 [ -0.50 L______ -0.25 Sensitivity of plate membrane 5 0.00 modulus 0.25 0.50 11 to the random variables. 1.0 I0.8 O 0.6 0.4 E 0.2 (.) 0.0 J 12.5 13.5 14.5 15.5 Modulus, Figure 3a.--Cumulative distribution PMG22 function of the plate membrane I f [1 17.5 (mpsi) Interphase…
What optimal junction parameters and high-temperature performance limits were discovered during Westinghouse Astronuclear Laboratory's study of fabrication techniques for SiC solar cells?
Labelled document: Westinghouse Astronuclear Laboratory final technical report on SiC solar cell fabrication techniques, July 1970
ASTRONUCLEAR LABORATORY WESTINGHOUSE ELECTRIC CORPORATION THIS SHEET INTENTIONALLY LEFT BLANK Hf PRECEDING PAGE BLANK NOT FILMED. Astronuclear *)Laboratory SUMMARY Silicon carbide unijunction diodes have been investigated for use as possible solar cells. The devices can be used in this manner,…
What are the specific assumptions made when constructing the typical analytical model for liquid stratification analysis in Technical Report No. 2 on "Transient Natural Convection Flows in Closed Containers"?
Labelled document: Barakat and Clark — Technical Report — August 1965
What issue of the NACA Annual Report contains Carl Kaplan's research on how lifting forces affect an elliptic cylinder?
Labelled document: National Advisory Committee for Aeronautics — Thirty-Third Annual Report — 1947
on the Lifting Force Acting on an EIliptie Cylinder. By Carl Kaplan. 1119. Increasing the Compressive Strength of 24S-T Aluminum .$lIoY Sheet by Flexure Rolling. By George J. HeimerI and Wa It er Woods. 1120. S[andard Nomenclature for Airspeeds with Tables and Charts for Use in Calculation of…
What software application created at NCSA can users employ to access the NASA Technical Report Server (NTRS) over the World Wide Web?
Labelled document: NASA Technical Report Server — AIAA paper — March 1995
Center, The NTRS is accessible (WW'W), I a multi-protocol LTRS Langley Technical Report MARC Machine Readable Cataloging NAS Numerical Aerodynamic Simulation Division, ARC, Moffett Field, CA NCSA National Center for Supercomputing Applications, University of Illinois Urbana-Champaign Technical…
In the NASA Technical Assessment Report on the Icing Research Tunnel Force Measurement System, what course of action should be taken if the resulting residuals prove unsatisfactory during calibration?
Labelled document: NASA Langley Research Center — Technical Assessment Report — November 2012
However, if the residuals are not acceptable, then the remainder of the schedule can be executed to develop a new in-situ matrix. NESC Request No.: TI-10-00632 NASA Engineering and Safety Center Technical Assessment Report Document #: Version: NESC-RP10-00632 1.0 Page #: Icing Research Tunnel…
What is the pressure coefficient value for the Stauscheibe instrument described in the First Annual Report of the National Advisory Committee for Aeronautics?
Labelled document: National Advisory Committee for Aeronautics — First Annual Report — 1915
Various dcviccs which 11re in prnctic11l use may he regarded as internwdiate hctween the Pitot tube nnd the pressure plate anemome t<'r. Among these arc the Dincs tube (seep. 82), the" Stauscheihc," and the PneumometPr. The Stauscheibe is a metal disk about 1 cm. in diameter with holf's in the…
What were the primary goals for improving the research program on flying qualities outlined in the Aircraft Digital Flight Control Technical Review?
Labelled document: USAF Digital Flight Control Technical Review — Report — 1992
the Flight Test Center, and the test pilots from the contractor and the Flight Test Center. The purpose of the Flying Qualities Working Group is to monitor the progress of the flying qualities of the design through the development stages, help resolve problems, and insure that potential problems…