NDLTD logo NDLTD Union Catalog and Global ETD Search

Global ETD Search

Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

Results

Showing 1 to 20 of 56 for “"GPM"”.

  1. The Evolution and Distribution of Precipitation during Tropical Cyclone Landfalls using the GPM IMERG Product

    Sauda, Samrin SumaiyaVirginia Tech2023

    … data and the Global Precipitation Mission (GPM)'s advanced Integrated Multisatellite Retrievals for GPM (IMERG) dataset is employed to study the 2014-2020 landfalling TCP at three analysis times: pre-landfall, landfall, and post-landfall. We examine three thresholds (2, 5, and 10 mm hr-1) …

    vt Repository record

  2. Cross validation of observations from the GPM dual-frequency precipitation radar and dual-polarization S-band ground radars

    Biswas, Sounak Kumar, author, Chandrasekar, V., advisor, Cheney, Margaret, committee member, Mielke, Paul W., committee memberColorado State University. Libraries2018

    … of the Global Precipitation Measurement (GPM) Mission Satellite with dual polarization S-Band Ground Radars. The GPM mission is a joint venture by the NASA and the JAXA. The radar on board the core observatory is a dual-frequency precipitation radar (DPR) capable of simultaneously …

    colostate Repository record

  3. Advancing the Accuracy of Watershed Analysis Across Diverse Hydrometeorological and Geologic Regimes via Classification and Analysis of GPM-IMERG Products

    Longenecker, Jake M2023

    … – Integrated Multi-satellitE Retrievals for GPM (GPM-IMERG) data, I improve the speed and accuracy of catchment identification and hydrodynamic characterization via an enhanced Empirically Constrained Hydrologic Operation (ECHO) algorithm. This research (1) establishes optimal parameter …

    cuny Repository record

  4. Designing a Domain-Specific Accelerator for Graph Pattern Mining

    Huang, Tianhao(Data scientist)Massachusetts Institute of Technology2021

    Graph pattern mining (GPM) is used in a variety of domains such as bioinformatics, e-commerce and social sciences. GPM is a computationally intensive problem with an enormous amount of coarse-grain parallelism and therefore, attractive for hardware acceleration. Unfortunately, existing GPM …

    mit Repository record

  5. Proton form factor ratio measurement with BLAST

    Sindile, Adrian Tiberiu

    … electric to magnetic form factor ratio ( GPE/GPM ) is related to the underlying electromagnetic structure of the proton. GPE/GPM is studied through elastic scattering using a longitudinally polarized electron beam with 0.85 GeV energy, a polarized internal hydrogen gas target and the BLAST …

    unh-thes Repository record

  6. Improving active remote sensing retrievals of snowfall at microwave wavelengths: an emphasis on the global precipitation measurement mission’s dual-frequency precipitation radar

    Chase, Randy JUniversity of Illinois at Urbana-Champaign2021

    … mission’s Dual-frequency Precipitation Radar (GPM-DPR). Initial evaluations of the retrieval of near-surface snowfall from GPM-DPR against the common global snowfall reference (i.e., CloudSat) showed large discrepancies between the two radar retrieval estimates. The large discrepancy between …

    uiuc Repository record

  7. Accurate and Fast Approximate Graph Mining at Scale

    Arpaci-Dusseau, AnnaMassachusetts Institute of Technology2024

    Approximate graph pattern mining (A-GPM) is an important data analysis tool for numerous graph-based applications. There exist sampling-based A-GPM systems to provide automation and generalization over a wide variety of use cases. Despite improved usability, there are two major obstacles that …

    mit Repository record

  8. The Effects of Business Process Management Cognitive Resources and User Cognitive Differences on Outcomes of User Comprehension

    Swan, Bret R.Virginia Tech2007

    … portrayed by graphical process models (GPMs). For example, deployment of BPM Systems, unique types of enterprise-level information systems, has dramatically increased in recent years. This increase is primarily because BPM Systems give a variety of managers across an enterprise the …

    vt Repository record

  9. Parameterizing PSD assumptions for remote sensing algorithms

    Harnos, KirstinUniversity of Illinois at Urbana-Champaign2015

    The Global Precipitation Measurement (GPM) mission Core satellite is the next generation of spacebased precipitation monitoring. Upgrading the ability to measure light precipitation and snowfall from a nearly global perspective. With these new capabilities comes new levels of uncertainty within the …

    uiuc Repository record

  10. Models of high-temperature desulfurization using zinc-based sorbents

    Zhang, Yong2019

    … a series of TGA experiments. Variations of the GPM (Grainy Pellet Model) were used and shown to give good agreement with experimental conversion histories of zinc oxide particle undergoing sulfidation using H2S at temperature in the range of 482 to 593 degree centigrade.;By using SEM (Scanning …

    wvu Repository record

  11. LEU-HEU Mixed Core Conversion Thermal-hydraulic Analysis and Coolant System Upgrade Assessment for the MIT Research Reactor

    Zhao, YinjieMassachusetts Institute of Technology2022

    … primary coolant flow rate increases from 2000 gpm to 2400 gpm. Detailed analyses were completed for initial LEU core with 22 fuel elements, and demonstrated both neutronic and thermal hydraulic safety requirements are met throughout equilibrium cycles. An alternative conversion strategy is …

    mit Repository record

  12. Optimization of Photonic Crystal Structures

    Frei, Walter RudolphUniversity of Illinois at Urbana-Champaign2015

    The GPM is shown to be an effective method for improving the performance of photonic crystal structures. Possible future research directions and applications are also briefly discussed.

    uiuc Repository record

  13. Stratified-drift aquifers in New Hampshire with potential to serve as future, large public water-supplies: Status, circa 2000; projected losses, circa 2025; and data accuracy

    Lough, John Alexander

    … aquifers with potential to yield 75+ gpm (OSDA75) and 150+ gpm (OSDA150) in New Hampshire for 2000 and 2025. Surface waters, cultural features and groundwater hazards from 13 federal/state datasets were buffered according to desired well yields, and then overlain within a geographic …

    unh-thes Repository record

  14. Efficacy of gravity-fed chlorination system for community-scale water disinfection in northern Ghana

    Fitzpatrick, Daniel CashMassachusetts Institute of Technology2008

    … supply with a flow rate of approximately 42 gpm (9.6 m3/hr). The present pilot study has evaluated the Pulsar system in Ghana and Cambridge, MA at flow rates of 18 gpm (4.1 m3/hr) and 9 gpm (2.0 m3/hr), respectively. This was challenging because the Pulsar was designed for swimming pool …

    mit Repository record

  15. Image Analysis of Air-bubble Injection (Front and Side View) into a Turbulent Liquid Stream

    Kaur, Navjot

    … view in which flow velocity was 0.80 m/s (2.68 GPM) at Reynolds number, Re=7413 and to inject air bubbles into water stream air bubble injection rate was set at 0.046 m/s (350 μl/min), as well as the side view in which all the conditions were the same except the flow velocity set at 2.63 GPM. …

    cuny Repository record

  16. Satellite System Safety Analysis Using STPA

    Dunn, Nicholas ConnorMassachusetts Institute of Technology2013

    … of a NASA/JAXA Global Precipitation Measurement (GPM) Core Observatory-based satellite. Exploiting the fact that nearly all satellites follow similar lifecycles and employ common functional architectures with relatively-decoupled, unique mission payloads, a template for future satellite STPA …

    mit Repository record

  17. Granular activated carbon pretreatment for the removal of trihalomethane precursors

    Carter, Karen Blake BurnettVirginia Tech1980

    … in the upflow mode at flow rates of 2, 4, and 6 gpm which provided empty bed contact times (EBCT) of 26, 13, and 6.6 minutes, respectively. Reservoir raw water quality data was collected to determine what relationship existed between these measurements and the trihalomethane formation potential …

    vt Repository record

  18. Improving Global Satellite Precipitation Products Utilizing Machine Learning

    Ehsani, Mohammad RezaThe University of Arizona.2023

    … Retrievals for Global Precipitation Measurement (GPM; IMERG; or other global precipitation products such as the Global Precipitation Climatology Project; GPCP) in high latitudes (i.e., poleward of 60°S/N). The possibility of mitigating the latency gap of satellite precipitation products through …

    arizona-thes Repository record

  19. Evaluation of an enhanced magneto-chemical process for the removal of pathogens in wastewater

    Wright, Christine N

    … the removal of MS2 was assessed using a 100 gpm CoMag(TM) pilot plant. The results indicate that there was a statistically significant difference (when alpha=0.050) in the removal of MS2, when magnetite is added, versus when magnetite is not added. In addition, results suggest that MS2 was …

    unh-thes Repository record

  20. Hydrogeologic assessment of the Brazos River alluvial aquifer : Waco to Marlin, Texas.

    Harlan, Scott K.Baylor University.1990

    … and livestock wells producing less than 50 gpm. Irrigation wells located in the floodplain may occasionally exceed 800 gpm. Flow directions in the terraces are toward the nearest stream dissection. Flow in the floodplain is toward the Brazos River and slightly downstream. Recharge to the …

    baylor Repository record

Page 1 of 3