cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.jbvdwu
title: Occurrence Download

description: A dataset containing 24 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dendrobium phalangium Schltr."
 ]
}

 The dataset includes 24 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0169980-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.dpi2gx
title: RF and Electronics Design of the Compact Ocean Wind Vector Radiometer (COWVR)

description: No abstract available.
DOI: 10.25549/independent-c69-45752
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.yvibgf
title: An inter-comparison of tropospheric ozone reanalysis products from CAMS, CAMS-Interim, TCR-1 and TCR-2

description: No abstract available.
DOI: 10.15468/dl.2dhj4d
title: Occurrence Download

description: A dataset containing 9320 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "TaxonKey is Amazilia cyanocephala (Lesson, 1829)",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 9320 records from 39 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001523-170822121629195/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.ybqrwf
title: Automated Volcano Monitoring using Multiple Space and Ground Sensors

description: No abstract available.
DOI: 10.48577/jpl.rlklnn
title: Extended Navigation Capabilities for a Future Mars Science Helicopter Concept

description: No abstract available.
DOI: 10.15468/dl.awagus
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dendrobium planicaule Ridl."
 ]
}

 The dataset includes 2 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0169993-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.g9dqsd
title: Avoiding the Great Filter: A Simulation of Important Factors for Human Survival

description: Humanity’s path to avoiding extinction is a daunting and inevitable challenge which proves difficult to solve, partially due to the lack of data and evidence surrounding the concept. We aim to address this confusion by addressing some of the most dangerous threats to humanity, in hopes of providing a direction to approach this problem. Using a probabilistic model, we observed the effects of nuclear war, climate change, asteroid impacts, artificial intelligence and pandemics, which are among the most harmful disasters in terms of their extent of destruction on the length of human survival. We consider the starting point of the predicted average number of survival years as the present calendar year. Nuclear war, when sampling from an artificial normal distribution, results in an average human survival time of 60 years into the future starting from the present, before a civilization-ending disaster. While climate change results in an average human survival time of 193 years, the simulation based on impact from asteroids results in an average of 1754 years. Since the risks from asteroid impacts could be considered to reside mostly in the far future, it can be concluded that nuclear war, climate change, and pandemics are presently the most prominent threats to humanity. Additionally, the danger from superiority of artificial intelligence over humans, although still somewhat abstract, is worthy of further study as its potential for impeding humankind’s progress towards becoming a more advanced civilization cannot be confidently dismissed.
DOI: 10.25549/independent-c69-45715
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.o9w3yq
title: ExoReL : A Bayesian Inverse Retrieval Framework For Exoplanetary Re ected Light Spectra

description: The high-contrast imaging technique is meant to provide insight into those planets orbiting severalastronomical units from their host star. Space missions such as WFIRST, HabEx, and LUVOIR willmeasure reected light spectra of cold gaseous and rocky planets.To interpret these observations we introduce ExoReL (Exoplanetary Reected Light Retrieval),a novel Bayesian retrieval framework to retrieve cloud properties and atmospheric structures fromexoplanetary reected light spectra. As a unique feature, it assumes a vertically non-uniform volumemixing ratio prole of water and ammonia, and use it to construct cloud densities. In this way, cloudsand molecular mixture ratios are consistent.We apply ExoReL on three test cases: two exoplanets ( And e and 47 Uma b) and Jupiter.We show that we are able to retrieve the concentration of methane in the atmosphere, and estimatethe position of clouds when the S/N of the spectrum is higher than 15, in line with previous works.Moreover, we described the ability of our model of giving a chemical identity to clouds, and wediscussed whether or not we can observe this dierence in the planetary reection spectrum. Finally, wedemonstrate how it could be possible to retrieve molecular concentrations (water and ammonia in thiswork) below the clouds by linking the non-uniform volume mixing ratio prole to the cloud presence.This will help to constrain the concentration of water and ammonia unseen in direct measurements.
DOI: 10.15468/dl.j1qvuh
title: Occurrence Download

description: A dataset containing 42 species occurrences available in GBIF matching the query:
{
 "and" : [
 "PublishingOrg is bb646dff-a905-4403-a49b-6d378c2cf0d9",
 "HasCoordinate is true",
 "TaxonKey is Cordulegaster bidentata Selys, 1843",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 42 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001523-171025204727650/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.2qjkmu
title: A Brief History of the Harvest Experiment: 1989–2019

description: The Harvest Oil Platform, near Point Conception, California, has long servedas the NASA prime verication site for the TOPEX/POSEIDON and Jasonseries of reference altimeter missions. In this brief review article, we provide ashort history of the platform verication experiment dating to the site selectionin 1989. We describe the evolution of the verication data record over the pastthree decades, and demonstrate how the results have informed the developmentof a stable and accurate climate data record of sea level change from satellitealtimetry.Keywords: Satellite Radar Altimeters, GPS Land Motion, Tide Gauge, SeaLevel, Altimeter Calibration/Validation, Orbit Determination
DOI: 10.25549/independent-c69-45642
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.swbuxp
title: Psyche Mission’s End-to-End Information System Verification Validation: Planning, Execution, and Lessons Learned

description: The Psyche mission is a National Aeronautics and Space Administration (NASA) discovery class mission managed by the Jet Propulsion Laboratory (JPL) that will explore a possibly metal world—an asteroid known as (16) Psyche located in the asteroid belt between Mars and Jupiter. The Psyche Mission launch period begins in October of 2023 after an intense and rigorous phase of system testing including verification and validation (VV) of the End-to-End Information System (EEIS). The EEIS is a virtual system comprised of distributed functions across the flight system, launch vehicle, mission system and science system, that interoperate cooperatively to collect, transport, store, translate, integrate, and manage mission (e.g., science, engineering, radio metric, command, ancillary) information. Core elements of the Psyche EEIS include the space link, Deep Space Network (DSN), ground data system, flight system, instruments, and timekeeping functions. The EEIS engineering team is responsible for ensuring the architecture is accurately implemented and that the project has a comprehensive understanding of the system’s functions and operability. This paper will explore the scope and results of EEIS testing, and will analyze the challenges faced and lessons learned from the VV campaign. The completed VV activities are defined as part of the EEIS phased development and test plan (PDTP) which outlines the scope of various system-level tests, associated requirements and stakeholders, necessary venue and support, and the timeline on which the tests will be accomplished. EEIS testing includes verification of: high-level data interfaces; requirements on the quality, quantity, completeness, and latency of the system’s data; performance and functional requirements; end-to-end command, telemetry, and science data flow; some lower level mission and flight system requirements; and data accountability validation. While these tests are successfully executed through the implementation of institutional best practices, the project faced a number of technical and organizational challenges in executing robust system tests. This paper will explore some of the unique challenges in the verification and validation of the EEIS including programmatic challenges, cross-subsystem tests with multiple stakeholders, and the development of features in flight software and testing venues. This evaluation of the EEIS VV planning, execution, and lessons learned effectively informs future space missions on best practices and recommended approaches in system level communication testing.
DOI: 10.15468/dl.hkv9xt
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dendrobium piranha C.L.Chan & P.J.Cribb"
 ]
}

 The dataset includes 8 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0169991-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.mrcdn9
title: Methane emissions from underground gas storage in California

description: Accurate and timely detection, quantification, and attribution ofmethane emissions fromUnderground Gas Storage (UGS) facilities is essential for improving confidence in greenhouse gas inventories, enabling emission mitigation by facility operators, and supporting efforts to assess facility integrity and safety.Weconducted multiple airborne surveys of the 12 active UGS facilities in California between January 2016 and November 2017 using advanced remote sensing and in situ observations of near-surface atmospheric methane (CH4). These measurements where combined with wind data to derive spatially and temporally resolved methane emission estimates for California UGS facilities and key components with spatial resolutions as small as 1–3mand revisit intervals ranging from minutes to months. The study spanned normal operations, malfunctions, and maintenance activity from multiple facilities including the active phase of the Aliso Canyon blowout incident in 2016 and subsequent return to injection operations in summer 2017.Weestimate that the net annual methane emissions from the UGS sector in California averaged between 11.0±3.8 GgCH4 yr−1 (remote sensing) and 12.3±3.8GgCH4 yr−1 (in situ). Net annual methane emissions for the 7 facilities that reported emissions in 2016 were estimated between 9.0±3.2GgCH4 yr−1 (remote sensing) and 9.5±3.2 GgCH4 yr−1 (in situ), in both cases around 5 times higher than reported. The majority of methane emissions from UGS facilities in this study are likely dominated by anomalous activity: higher than expected compressor loss and leaking bypass isolation valves. Significant variability was observed at different time-scales: daily compressor duty-cycles and infrequent but large emissions from compressor station blow-downs. This observed variability made comparison of remote sensing and in situ observations challenging given measurements were derived largely at different times, however, improved agreement occurred when comparing simultaneous measurements. Temporal variability in emissions remains one of the most challenging aspects of UGS emissions quantification, underscoring the need for more systematic and persistent methane monitoring.
DOI: 10.48577/jpl.slzfcv
title: Implementation of Commercial Li-ion Cells on the MarCO Deep Space CubeSats

description: No abstract available.
DOI: 10.15468/dl.agnhsw
title: Occurrence Download

description: A dataset containing 276 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Berberis canadensis Mill."
 ]
}

 The dataset includes 276 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001523-171109162308116/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.wkngv6
title: Facility Pressure Effects on a Hall Thruster with an External Cathode, II: Theoretical Model of the Thrust

description: A theoretical model of the thrust produced by a Hall thruster has been developed to provide insight into the longstanding problem of performance dependence on facility pressure. Inputs to the model have been provided by 2D (r–z) axisymmetric simulations that were guided by measurements of the ion velocity field from laser induced fluorescence diagnostics. The combined analyses yield very good agreement with thrust measurements from ground tests of the SPT-140, a Hall thruster operating with an external cathode, and suggest two new findings. First, at intermediate pressures (∼9–15 μTorr) the rise of the thrust with increasing pressure is largely due to fast atoms produced by charge exchange collisions with beam ions. The acceleration region remains spatially invariant and the thrust rise is linear with pressure. As the pressure increases further, displacements of the acceleration region towards the anode become sizeable and reduce the rate of increase in thrust. Second, the thrust increase from vacuum to the lower values of pressure (9 μTorr) is driven largely by transport of electrons along magnetic lines, from the cathode to the near-plume of the thruster, which explains why the rise is nonlinear with pressure. It is argued based on first-principles that this higher rate of thrust variation observed at the lowest pressures may be strongly linked to the highly asymmetric distribution of the external-cathode electrons around the discharge. This would explain the insensitivity of performance in thrusters with centrally-mounted cathodes as well as the longstanding challenges 2D axisymmetric simulations have had in uncovering the source of the thrust dependence on facility pressure.
DOI: 10.25549/independent-c69-44676
title: Correspondence / memoranda, 1991 May 2 - July 12

description: Correspondence and memoranda in support of the Independent Commission on the Los Angeles Police Department, 1991 May 2 - July 12. PART OF A SERIES: The series relates to the work product of Sibley & Austin, whose staff contributed to the Commission's probe of excessive force allegations brought against the LAPD. Included in the series are memoranda, witness testimonies, interview summaries, copies of officers' background files, after-action summaries and reports, and notes taken by the firm. Materials relate to four major areas of study undertaken by the firm: the Justice for Janitors labor demonstration of 1990, the jail ward of County/USC Medical Center, Los Angeles city jails, and a review of the LAPD's Background Investigation Unit.
DOI: 10.48577/jpl.53gzin
title: Facility Pressure Effects on a Hall Thruster with an External Cathode, I: Numerical Simulations

description: Abstract: We employ the 2-D (r-z) code Hall2De to conduct numerical simulations of the SPT-140, a Hall thruster that operates with an external hollow cathode. The simulations are informed by direct measurements of the plasma conditions in the acceleration channel that were obtained using the laser-induced fluorescence technique. We validate our simulation results with additional plasma measurements, wear test erosion rates, and performance data as a function of background pressure. The comparisons of the simulation results with thrust measurements provide insight into the longstanding question of how background pressure affects Hall thruster performance. We find that in thrusters with an external cathode changes in the thrust with varying backpressure can be partially explained by changes in the plasma density near the cathode. We argue that such changes in the density affect the voltage coupling and, eventually, the thrust. However, accounting for this mechanism alone in the simulations over-predicts the thrust measured during ground tests for backpressures less than 10 Torr. Also, at these backpressures, the measurements showed a higher rate of change of the thrust compared to the simulations. We propose that one explanation for this discrepancy is that the acceleration region may be axially shifting downstream with decreasing backpressure. Though possible, we also recognize that such shifts are not observed in LIF measurements at the lowest pressures for which such diagnostics are possible. We discuss alternative explanations in Part II of this article.
DOI: 10.15468/dl.mq52ca
title: Occurrence Download

description: A dataset containing 126 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dendrobium pleianthum Schltr."
 ]
}

 The dataset includes 126 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0170001-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.sxqhjs
title: Long-range through-the-wall magnetoquasistatic coupling and application to indoor position sensing

description: The magnetoquasistatic (MQS) field coupling theoryis presented for long-ranges between a transmitting devicelocated outdoor to a receiving device located indoor. The theory is validated based on measurements in a large indoor house environment (&gt;8000 ft2) with the transmitting device located far outside the house (&gt; 11m from outer wall). We discuss the system and demonstrate position sensing for a compact mobile MQS receiver device in the house.
DOI: 10.15468/dl.hztsoc
title: Occurrence Download

description: A dataset containing 470 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Crypturellus bartletti (P.L.Sclater & Salvin, 1873)"
 ]
}

 The dataset includes 470 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001524-150204170955391/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.mitk8u
title: Rising trends in heatwave metrics across Southern California

description: Research on heatwaves has gained significant impetus over the past decade due to a warming planet and rapid 21st century urbanization. This study examines driving factors influencing heatwave trends and interannual variability across Southern California (SoCal) from 1950–2020. Inland urban areas of Los Angeles county are the most susceptible to heatwaves with strong increasing trends in frequency, duration, and intensity that are closely tied to nighttime warming. Coastal and rural areas are less impacted but show a significant increase in heatwave frequency over the past two decades. Heatwave nighttime temperatures combined with high humidity have been increasing at a rapid rate of ~1°C/decade since the 1980’s—elevating heat-stress and mortality risk to vulnerable urban communities. The increased nighttime humidity is associated with an anomalous moisture source off the coast of Baja California that has intensified over the past decade and is linked to ocean warming trends and changes in the California current system. Heatwaves are starting earlier and ending later in the year for urban regions. This augments public health risks and sets the stage for more intense fall wildfires by enhancing the drying of fuels. Droughts and heatwaves are strongly linked, particularly in inland urban and rural areas that have a high statistical probability of heatwaves increasing in frequency (42%), duration (26%), and daily mean temperature (2.2%) during severe drought conditions. Better understanding of heatwave climate drivers and underlying physical processes could help with prediction skill, in addition to providing effective data-driven recommendations for mitigation efforts in SoCal’s vulnerable urban regions.
DOI: 10.25549/independent-c69-44563
title: Correspondence, 1991 Jan. 31 - May 1

description: General correspondence and materials obtained from other sources. Included are drafts of the report as well as correspondence amongst the general counsel and deputy general counsel, and a collection of material including: Interview summaries, witness interview list, witness statements, 1991 January 31 - May 1. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.