Now showing items 31-50 of 81

    • Finite coulomb crystal formation 

      Vasut, John; Hyde, Truell Wayne.; Barge, Laura (Advances in Space Research, 2004)
      Dust particles immersed within a plasma environment, such as those found in planetary rings or comets, will acquire an electric charge. If the ratio of the inter-particle potential energy to average kinetic energy is large ...
    • Fluid modeling of void closure in microgravity noble gas complex plasmas 

      Land, Victor; Matthews, Lorin Swint.; Hyde, Truell Wayne.; Bolser, Diana (Physics Review E, 2010-05-12)
      A self-consistent dusty plasma fluid model has been extended to incorporate all the noble gases as the carrier gas. An analysis of void closure in complex plasma composed of these gases over a wide range of experimental ...
    • Formation of Cosmic Dust Bunnies 

      Matthews, Lorin Swint.; Hayes, Ryan; Freed, Michael; Hyde, Truell Wayne. (IEEE Transactions on Plasma Science, 2007)
      Planetary formation is an efficient process now thought to take place on a relatively short astronomical time scale. Recent observations have shown that the dust surrounding a protostar emits more efficiently at longer ...
    • Glow and Dust in Plasma Boundaries 

      Land, Victor; Douglass, Angela Michelle.; Qiao, Ke; Zhang, Zhuanhao.; Matthews, Lorin Swint.; Hyde, Truell Wayne. (IEEE Transactions on Plasma Science, 2013-04)
      The sheath region is probed in different complex plasma experiments using dust particles in addition to the measurement of the optical emission originating from the plasma. The local maximum in the optical emission coincides ...
    • Gravitoelectrodynamics of Charged Grains in Saturn's F Ring: Encounters with Prometheus and Pandora 

      Matthews, Lorin Swint.; Hyde, Truell Wayne. (Journal of Physics A, 2003-09-12)
      The dynamics of Saturn's F ring have been a matter of curiosity ever since Voyagers 1 and 2 sent back pictures of the ring's unusual features. Some of these images showed three distinct ringlets with the outer two displaying ...
    • Helical Structures in Vertically Aligned Dust Particle Chains in a Complex Plasma 

      Hyde, Truell Wayne.; Kong, Jie; Matthews, Lorin Swint. (Physical Review E, 2013-05-16)
      Self-assembly of structures from vertically aligned, charged dust particle bundles within a glass box placed on the lower, powered electrode of a Gaseous Electronics Conference rf reference cell were produced and examined ...
    • How to make large, void-free dust clusters in dusty 

      Land, Victor; Goedheer, Willem Jan (IOP publishing, 2008-12-18)
      Collections of micrometer-sized solid particles immersed in plasma are used to mimic many systems from solid state and fluid physics, due to their strong electrostatic interaction, their large inertia, and the fact that ...
    • Hydrodynamic and kinetic modelling of complex radio-frequency plasmas 

      Goedheer, Willem Jan; Land, Victor; Venema, Jan (IOP publishing, 2009-09-18)
      In this paper hydrodynamic and kinetic approaches to model low-pressure capacitively coupled complex radio-frequency discharges are discussed and applied to discharges under micro-gravity. Complex plasmas contain dust ...
    • The influence of monomer shape on aggregate morphologies 

      Perry, Jonathan D.; Gostomski, Erwin; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Astronomy & Astrophysics, 2012-03)
      Context. The coagulation of dust particles is the initial step in planetary formation, with the precursors to planetesimals believed to form via the collisions of micron and submicron sized dust particles in the disk ...
    • Initial Development and Validation of the Elementary Student Engagement Survey (ESES) 

      Carmona Reyes, Jorge; Attai, Shanna; Davis, John; York, Judy; Ranney, Kerri; Hyde, Truell W. (2020-03-16)
      Student engagement has been researched from multiple perspectives in the literature due to its impact on academic attainment and other variables of interest. However, most of the research has focused on grades above ...
    • Initial Development and Validation of the Student Engagement for Students for Flexible Learning Environments (STUD-E Sflex) Assessment for Effective Intervention 

      Carmona Reyes, Jorge; York, Judy; Attai, Shanna L., 1987-; Ranney, Kerri; Davis, John; Howell, Leanne; Altmann, Rob; Hyde, Truell Wayne. (2020-01-10)
      Student engagement has been researched from multiple perspectives due to its impact on academic skill attainment. However, most of this research has focused on grades above elementary school, leaving a gap in student ...
    • The initial structure of chondrule dust rims I: electrically neutral grains 

      Xiang, Chuchu (Icarus, 2019-03)
      In order to characterize the early growth of fine-grained dust rims (FGRs) that commonly surround chondrules in carbonaceous chondrites, we perform numerical simulations of dust accretion onto chondrule surfaces. We employ ...
    • Interaction force in a vertical dust chain inside a glass box 

      Kong, Jie; Qiao, Ke; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Physical Review E, 2014-07-31)
      Small number dust particle clusters can be used as probes for plasma diagnostics. The number of dust particles as well as cluster size and shape can be easily controlled employing a glass box placed within a Gaseous ...
    • Investigating the Impact of Flexible Furniture in the elementary Classroom 

      Attai, Shanna L., 1987-; Carmona Reyes, Jorge; Davis, John; York, Judy; Ranney, Kerri; Hyde, Truell (2020-01-24)
      Educators are beginning to consider the physical learning environment as an additional resource to meet the learning outcomes in modern classrooms. In order to better utilize classroom space, schools have begun to eliminate ...
    • Ion-wake Field inside a Glass Box 

      Chen, Mudi; Dropmann, Michael; Matthews, Lorin; Hyde, Truell W. (Physical Review E, 2016-09)
      The confinement provided by a glass box is proving ideal for the formation of vertically aligned structures and a convenient method for controlling the number of dust particles comprising these dust structures as well as ...
    • The magnetic field inside a protoplanetary disk gap opened by planets of different masses 

      Carballido, Augusto; Matthews, Lorin; Hyde, Truell W. (Monthly Notices of the Royal Astronomical Society, 2017)
      We perform magnetohydrodynamic simulations of protoplanetary disc gaps opened by planets of various masses, with the aim of calculating the strength of the vertical magnetic field threading such gaps. We introduce a ...
    • Mapping of force field in a capacitively driven rf plasma discharge 

      Dropmann, Michael; Chen, Mudi; Sabo, Hannah; Laufer, Rene; Herdrich, Georg; Matthews, Lorin; Hyde, Truell W. (Journal of Plasma Physics, 2016-07)
      In this paper a method is described that allows mapping of the forces acting on dust particles in a GEC reference cell. Monodisperse particles are dropped into the plasma environment and their trajectories are tracked using ...
    • Mapping the Plasma Potential in a Glass Box 

      Scott, Lori; Ellis, Naoki; Chen, Mudi; Matthews, Lorin Swint.; Hyde, Truell Wayne. (IEEE Transactions on Plasma Science, 2019-07)
      Modeling the dynamics of charged dust particles, confined in a glass box placed on the lower electrode of a Gaseous Electronics Conference cell, requires that the interactions between the charged dust, plasma, and boundaries ...
    • Measurement of net electric charge and dipole moment of dust aggregates in a complex plasma 

      Yousefi, Raziyeh.; Davis, Allen; Carmona-Reyes, Jorge; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Physical Review E, 2014-09-02)
      Understanding the agglomeration of dust particles in complex plasmas requires knowledge of basic properties such as the net electrostatic charge and dipole moment of the dust. In this study, dust aggregates are formed from ...
    • Mode coupling and resonance instabilities in quasi-two-dimensional dust clusters in complex plasmas 

      Qiao, Ke; Kong, Jie; Carmona-Reyes, Jorge; Matthews, Lorin Swint.; Hyde, Truell Wayne. (American Physical Society, 2014-09-16)
      Small quasi-two-dimensional dust clusters consisting of three to eleven particles are formed in an argon plasma under varying rf power. Their normal modes are investigated through their mode spectra obtained from tracking ...