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Showing 1 to 20 of 722 for “"Surface roughness"”.

  1. Surface roughness of Mars

    Mamo, Andrew Benedict, 1982-Massachusetts Institute of Technology2004

    … measurements had made it impossible to measure surface roughness at 100 m length scales. By calculating the returned energy, the problem of saturation can be avoided. This algorithm was applied to MOLA data across the Martian surface to create an estimate of surface roughness across the planet. …

    mit Repository record

  2. Modeling of conductor surface roughness effect

    Ma, XiaoUniversity of Illinois at Urbana-Champaign2015

    Conductor surface roughness effect refers to the influence of surface roughness on the current flow inside a conductor and the subsequent effect on electromagnetic properties of the conductor. The existence of surface roughness on a conductor disturbs current flow and results in a higher than usual …

    uiuc Repository record

  3. Surface Roughness Effects on Bidirectional Reflectance

    Smith, Theodore FranklinUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-10T22:48:19Z (GMT). No. of bitstreams: 1 7317428.pdf: 4305340 bytes, checksum: 8e833be46ed968f799b263c9cc9027fb (MD5) Previous issue date: 1972

    uiuc Repository record

  4. A photogrammetric method for measuring transient frost surface roughness.

    Miyauchi, Taber Scott, 1994-Baylor University.2018

    … allowed to takeoff with CSFF on aircraft wing surfaces. To assist manufacturers in the design of air vehicles and to assist the FAA in evaluating exemption requests, frost roughness evolution must be characterized and modeled. However measuring transient frost roughness is difficult because of …

    baylor Repository record

  5. Surface roughness anisotopy on mismatched InAlAs/InGaAs/InP heterostructures

    Sinn, Matthew T. (Matthew Thomas)Massachusetts Institute of Technology1995

    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.

    mit Repository record

  6. Exploration of a geometric approach for estimating snow surface roughness

    Kamin, David Jeffrey, author, Fassnacht, Steven R., advisor, Stednick, John D., committee member, Bauerle, William, committee memberColorado State University. Libraries2015

    The roughness of a surface that influences atmospheric turbulence is estimated as the aerodynamic roughness length (Z0), and is used to understand the flow of air, temperature, and moisture over a surface. Z0 is a critical variable for estimating latent and sensible fluxes at the surface, but most …

    colostate Repository record

  7. A study of surface roughness issues in magnetic tunnel junctions

    HU JIANGFENG2007

    … greatly modified by introducing the interface roughness into the basic Ferromagnet/Insulator/Ferromagnet structure. Experimentally, the surface roughness of the Ni80Fe20 bottom electrode is controlled by applying an rf substrate bias during the deposition. Magnetic tunnel junction elements are …

    nus Repository record

  8. Effects of Surface Roughness on the Indoor Particle Deposition Rate Constant

    Wang, Shaojie

    … of size-classified particles on typical indoor surface materials as affected by the degree of surface roughness. The experiments were conducted in a small-scale acrylic chamber. The particle size range was from 0.723 to 5.048 £gm with 28 size bins. The air change rates were 6, 11 and 13 h-1. The …

    syracuse-diss Repository record

  9. Effects of electrode surface roughness on motional heating of trapped ions

    Lin, Kuan-Yu, S.B. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2016

    … noise has been studied in patch potential and surface adsorbate models, only smooth surfaces are accounted for by current theory. The effects of roughness, a ubiquitous feature of surface electrodes, are poorly understood. We investigate its impact on electric field noise by deriving a …

    mit Repository record

  10. Surface roughness characterization of rock masses using the fractal dimension and variogram

    Lee, Young-HoonUniversity of Missouri--Rolla2016

    must-thes Repository record

  11. The Impact of Surface Roughness on Transonic Inlet Lip-Flows at Incidence

    Coles, CharlotteUniversity of Cambridge2019

    … to place the lower lip interaction closer to surface roughness features, such as the acoustic liner. This is made up of small, tightly packed holes over the inner surface. The acoustic liner is not the only source of roughness during take-off. Other examples include ice which can form around …

    cambridge Repository record

  12. Kinetics modeling and 3-dimensional simulation of surface roughness during plasma etching

    Guo, Wei, Ph. D. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2009

    … model the etching processes as well as roughness transfer and artifact evolution. The development of profile simulators has been inhibited by the limited knowledge of the surface kinetic processes and rate coefficients. A mixing-layer surface kinetic model was developed to account for …

    mit Repository record

  13. REMOTELY MAPPING SURFACE ROUGHNESS ON ALLUVIAL FANS: AN APPROACH FOR UNDERSTANDING DEPOSITIONAL PROCESSES

    Doyle, Sarah

    … using multiple images from a single year to find surface roughness-based differences in directional radiance across sparsely-vegetated surfaces has been developed to help efficiently map and understand depositional processes on active, alluvial fan surfaces in Death Valley, CA. Surface roughness …

    unm Repository record

  14. Effects of surface roughness on the flow characteristics in a turbulent boundary layer

    Akinlade, Olajide GaniyuUniversity of Saskatchewan2005

    … dynamics of turbulent boundary layers over rough surfaces is much less well known. Nevertheless, there are many industrial and environmental flow applications that require understanding of the mean velocity and turbulence in the immediate vicinity of the roughness elements. This thesis reports the …

    sask Repository record

  15. Effect of hydrophobicity and surface roughness on two-phase flow in rectangular microchannels

    Unni, Gautham C.Missouri University of Science and Technology2016

    … microchannels as a function of hydrophobicity, surface roughness, and bubble size. The SU-8 channels are fabricated using photolithography to ensure a perfectly smooth surface, which eliminates the effect of surface roughness. The fabricated channels are treated to alter the contact angle of …

    must-thes Repository record

  16. Computationally Modeling the Effects of Surface Roughness on Soft X-Ray Multilayer Reflectors

    Johnson, Jedediah Edward Jensen2006

    … accounts for correlation between neighboring surface atoms. The scalar electric field integral equation (EFIE) and magnetic field integral equation (MFIE) were solved using the Nystrom method to obtain the reflected intensity as a function of observation angle. Verification of the accuracy of …

    byu Repository record

  17. The Effects of Surface Roughness on The Shear Strength of Joints in Rock

    Coulson, James HiltonUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-10T22:21:26Z (GMT). No. of bitstreams: 1 7114711.pdf: 8844841 bytes, checksum: a6c867cb22f2bb488d7683e87bda7087 (MD5) Previous issue date: 1970

    uiuc Repository record

  18. The effect of surface roughness on the precision of the encapsulated fixturing system

    Fan, Winston Chi Hang, 1975-Massachusetts Institute of Technology2000

    Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.

    mit Repository record

  19. Effects of Tip Clearance and Surface Roughness on Small-Scale Turbopump Impeller Performance

    Ruecker, Kinjal A. L.Massachusetts Institute of Technology2024

    … the impact of impeller blade tip clearance and surface roughness on the performance of small-scale turbopump impellers by assessing the dominant flow features, quantifying the underlying loss mechanisms, and determining the sensitivity of performance losses to changes in tip clearance and …

    mit Repository record

  20. Inspection & modelling of cusp geometry in additive manufacturing to predict product’s surface roughness

    Kaji, FarzanehUniversity of Ontario Institute of Technology2015

    … geometric inaccuracies, and the resulting high surface roughness of the products have been the major problems in employing Additive Manufacturing (AM) technologies. Most of commonly used Additive manufacturing (AM) technologies are developed based on a layer-based manufacturing process to …

    uoit Repository record

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