The JPL Open Repository (JOR) replaced the JPL Technical Report Server (TRS) in 2023. It is a repository for digital copies of technical publications authored by JPL employees. It includes journal articles (the Final Accepted Version), meeting papers, presentations, and other publications cleared for external distribution from 1992 to the present. It also includes research datasets from 2022 on.

Years covered: 1992 to the present.
  • 1992-2021 records were originally on the JPL Technical Report Server (TRS) on Dspace system; those records were migrated to Dataverse in 2022.
  • Records with publication date 2022 or later are native to the Dataverse.
  • Data sets: 2022 to present
  • There are a few pre-1992 records. Those were added to the system on a case-by-case request basis.

  • Persistent IDs (PIDs):
  • 1992-2021 records have Handles
  • 2022 and later records have Digital Object Identifiers (DOIs).
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    83,941 to 83,950 of 84,745 Results
    A Comparison of Partitioned and Non-Partitioned Matrix Solutions to Coupled Finite Element-Integral Equations
    Jul 1, 1993
    Cwick, Tom; Jamnejad, Vahraz; Zuffada, Cinzia, 1993, "A Comparison of Partitioned and Non-Partitioned Matrix Solutions to Coupled Finite Element-Integral Equations", https://hdl.handle.net/2014/34813, USA, JPL Open Repository
    No abstract provided
    Long-Term Persistence of Solar Activity
    Jul 1, 1993
    Ruzmaikin, Alexander; Feynman, Joan; Robinson, Paul, 1993, "Long-Term Persistence of Solar Activity", https://hdl.handle.net/2014/35550, USA, JPL Open Repository
    We examine the question of whether or not the non-periodic Variations in solar activity are caused by a white-noise random process. The Hurst exponent, which characterizes the persistence of a time series, is evaluated for the series 14C Data for the time interval from about 6000...
    JHK and 3.3um PAH Imaging of the Starburst Ring in the Type I Seyfert Galaxy NGC 7469
    Jul 1, 1993
    Mazzarella, J.; Voit, G.; Soifer, B.; Matthews, K.; Armus, L.; Shupe, D.; Graham, J., 1993, "JHK and 3.3um PAH Imaging of the Starburst Ring in the Type I Seyfert Galaxy NGC 7469", https://hdl.handle.net/2014/36505, ['Infrared Astronomy with Arrays', 'Los Angeles, California, USA'], JPL Open Repository
    Imaging of NGC 7469 in the J, H, & K bands shows that the starburst 'ring' is a tight inner spiral with arms that extend from the nucleus.
    Thermal, Mass, and Power Interactions for Lunar Base Life Support and Power Systems
    Jul 1, 1993
    Jan, Darrell L.; Rohatgi, Naresh; Voecks, Gerald; Prokopius, Paul, 1993, "Thermal, Mass, and Power Interactions for Lunar Base Life Support and Power Systems", https://hdl.handle.net/2014/35500, ['SAE', 'Colorado Springs, CO'], JPL Open Repository
    A model has been developed for quantitative examination of the integrated operation of a lunar base power system, employing regenerative fuel cell technology, which would lead to incorporation into a lunar base life support system. The model employs methods developed for technolo...
    Design and Results of Differential Microwave Radiometers (DMR) on COBE
    Jul 1, 1993
    Janssen, Michael A.; Gulkis, Samuel; Bennett, Charles L.; Kogut, Alan J., 1993, "Design and Results of Differential Microwave Radiometers (DMR) on COBE", https://hdl.handle.net/2014/35236, ['SPIE Intl. Symposium on Optical Instrumentation and Applied Science', 'San Diego, CA'], JPL Open Repository
    The Differential Microwave Radiometer (DMR) experiment on the Cosmic Background Explorer is in the final year of a scheduled four years of operation to measure large- and intermediate-scale anisotropies in the Cosmic Microwave Background (CMB). The DMR instrument comprises two in...
    Measurements of Excitation Functions and Line Polarizations for Electron Impact Excitation of the n = 2, 3 States of Atomic Hydrogen in the Energy Range 11 - 2000 eV
    Jul 1, 1993
    James, G. K.; Ajello, J. M.; Kanik, I.; Slevin, J.; Franklin, B.; Shemansky, D., 1993, "Measurements of Excitation Functions and Line Polarizations for Electron Impact Excitation of the n = 2, 3 States of Atomic Hydrogen in the Energy Range 11 - 2000 eV", https://hdl.handle.net/2014/35016, ['ICPEAC XVIII, University of Aarhus: Atomic Collision Physics', 'Aarhus, Denmark'], JPL Open Repository
    The electron-atomic hydrogen scattering system is an important testing ground for theoretical models and has received a great deal of attention from experimentalists and theoreticians alike over the years. A complete description of the excitation process requires a knowledge of m...
    Efficient Inverse Kinematics for Serial Connections of Serial and Parallel Manipulators
    Jul 1, 1993
    Lee, S.; Kim, S., 1993, "Efficient Inverse Kinematics for Serial Connections of Serial and Parallel Manipulators", https://hdl.handle.net/2014/35438, Yokohama, Japan, JPL Open Repository
    This paper presents a unified and efficient method of solving the inverse kinematics for 6 d.o.f. serial connections of two 3 d.o.f. serial and parallel manipulators.
    Single Event Effects on Space Radiation Hardened 64K SRAMS at Room temperature
    Jul 1, 1993
    Kim, O.; Schwartz, H.; McCarty, K.; Coss, J.; Barnes, C., 1993, "Single Event Effects on Space Radiation Hardened 64K SRAMS at Room temperature", https://hdl.handle.net/2014/35540, Snowvird, Utah, USA, JPL Open Repository
    The laser threshold linear Energy transfer for single event upsetscan be estimaed, even at room temperature, for space radiation hardened 64K SRAMs. The memories where independently developed to quality for the Qualified Manufacturer's List by IBM and Honeywell. The memory was so...
    Classification of Simple Vegetation Types Using POLSAR Image Data
    Jul 1, 1993
    Freeman, A., 1993, "Classification of Simple Vegetation Types Using POLSAR Image Data", https://hdl.handle.net/2014/35411, ['PIERS, Progress in Electromagnetics Research', 'Pasadena, CA'], JPL Open Repository
    Mapping basic vegetation or land cover types is a fairly common problem in remote sensing. Knowledge of the land cover type is a key input to algorithms which estimate geophysical parameters, such as soil moisture, surface roughness, leaf area index or biomass from remotely sense...
    A K-Band Search for Starburst Supernovae
    Jul 1, 1993
    Buren, D. Van; Jarrett, T.; Beichman, C., 1993, "A K-Band Search for Starburst Supernovae", https://hdl.handle.net/2014/36506, UCLA, Los Angeles, California, USA, JPL Open Repository
    We are conducting a search for supernovae in starburst galaxies at the IRTF. Teh najor difficulty is to reliably detect weak point sources in the presence of a bright and structured background.
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