Now showing items 310-329 of 398

    • Peptide-based hydrogen sulphide-releasing gels 

      Carter, Jennifer M.; Qian, Yun; Foster, Jeffrey C.; Matson, John B. (The Royal Society of Chemistry, 2015-07-20)
      An aromatic peptide amphiphile was designed for delivery of the signaling gas H2S. The peptide self-assembled in water into nanofibers that gelled upon charge screening. The non-toxic gel slowly released H2S over 15 hours, ...
    • Phase transition and temperature stability of piezoelectric properties in Mn-modified Pb(Mg1/3Nb2/3)O-3-PbZrO3-PbTiO3 ceramics 

      Yan, Yongke; Kumar, Amit; Correa, Margarita; Cho, Kyung-Hoon; Katiyar, R. S.; Priya, Shashank (AIP Publishing, 2012-04-01)
      This study investigates the effect of two different Mn modifiers [MnO2 and Pb(Mn1/3Nb2/3)O-3(PMnN)] on the of phase transitions in Pb(Mg1/3Nb2/3)O-3-PbZrO3-PbTiO3 ceramics. The temperature dependence of polarization derived ...
    • Phosphonium-containing diblock copolymers from living anionic polymerization of 4-diphenylphosphino styrene 

      Schultz, Alison R.; Fahs, Gregory B.; Jangu, Chainika; Chen, Mingtao; Moore, Robert B.; Long, Timothy E. (The Royal Society of Chemistry, 2015-11-20)
      Living anionic polymerization of 4-diphenylphosphino styrene (DPPS) achieved well-defined homopolymers, poly(DPPS-b-S) styrenic block copolymers, and poly(I-b-DPPS) diene-based diblock copolymers with predictable molecular ...
    • Physical layer orthogonal frequency-division multiplexing acquisition and timing synchronization security 

      La Pan, Matthew J.; Clancy, Charles T.; McGwier, Robert W. (Wiley, 2014-08-18)
      Orthogonal frequency-division multiplexing (OFDM) has become the manifest modulation choice for 4G standards. Timing acquisition and carrier frequency offset synchronization are prerequisite to OFDM demodulation and must ...
    • Piecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubules 

      He, Peng; Wei, Biao; Wang, Steve; Stock, Stuart R.; Yu, Hengyong; Wang, Ge (Hindawi Publishing Corporation, 2013)
      Dentin is a hierarchically structured biomineralized composite material, and dentin's tubules are difficult to study in situ. Nano-CT provides the requisite resolution, but the field of view typically contains only a few ...
    • Piezoelectric MEMS for energy harvesting 

      Kim, S. G.; Priya, S.; Kanno, I. (Cambridge University Press, 2012-11)
      Piezoelectric microelectromechanical systems (MEMS) have been proven to be an attractive technology for harvesting small magnitudes of energy from ambient vibrations. This technology promises to eliminate the need for ...
    • Piezoelectric properties and temperature stability of Mn-doped Pb(Mg1/3Nb2/3)-PbZrO3-PbTiO3 textured ceramics 

      Yan, Yongke; Cho, Kyung-Hoon; Priya, Shashank (AIP Publishing, 2012-03-01)
      In this letter, we report the electromechanical properties of textured 0.4Pb(Mg1/3Nb2/3) O-3-0.25PbZrO(3)-0.35PbTiO(3) (PMN-PZT) composition which has relatively high rhombohedral to tetragonal (R-T) transition temperature ...
    • Pond at the Gottlieb residence 

      Gottlieb, Mark (Virginia Tech. Digital Library and Archives; Virginia Tech. University Libraries. Special Collections Department, 2008-04-11)
      Mark Gottlieb, son of Lois Gottlieb, sent photos of a house designed by his mother. This home is in Fairfax Station, Virginia.
    • Predicting Mild Traumatic Brain Injury with Injury Risk Functions 

      Young, Tyler (Brain Injuries and Biomechanics Symposium, 2013-09-19)
      To assess the safety of various products, equipment, and vehicles during traumatic events injury risk curves have been developed correlate measurable parameters with risk of injury. The first risk curves to predict head ...
    • Prediction of Young’s Modulus for Injection Molded Long Fiber Reinforced Thermoplastics 

      Chen, Hongyu; Baird, Donald G. (MDPI, 2018-08-06)
      In this article, the elastic properties of long-fiber injection-molded thermoplastics (LFTs) are investigated by micro-mechanical approaches including the Halpin-Tsai (HT) model and the Mori-Tanaka model based on Eshelby’s ...
    • Proceedings of the 2011 Conference on Higher Education Pedagogy 

      Unknown author (Virginia Tech, 2011)
      The third annual Conference on Higher Education Pedagogy focused on higher education teaching excellence and the scholarship of teaching and learning. The conference provided a forum for faculty members and graduate students ...
    • Proceedings: 11th Annual Conference on Higher Education Pedagogy/Symposium on Teaching Large Classes 

      Unknown author (Virginia Tech, 2019)
      Combined proceedings from the 11th annual Conference on Higher Education Pedagogy, held on January 30-February 1, 2019; and the Symposium on Teaching Large Classes, held on February 2, 2019.
    • Real Choices Systems Change Grant Final Report: Goal 4 Quality Assessment 

      Roberto, Karen A.; Teaster, Pamela B. (Pamela Booth); Glass A.; Brossoie, N. (Virginia Department of Medical Assisstance Services, 2005-09)
    • Remote Actuation of Magnetic Nanoparticles For Cancer Cell Selective Treatment Through Cytoskeletal Disruption 

      Master, Alyssa M.; Williams, Philise N.; Pothayee, Nikorn; Pothayee, Nipon; Zhang, Rui; Vishwasrao, Hemant M.; Golovin, Yuri I.; Riffle, Judy S.; Sokolsky, Marina; Kabanov, Alexander V. (Springer Nature, 2016-09-20)
      Motion of micron and sub-micron size magnetic particles in alternating magnetic fields can activate mechanosensitive cellular functions or physically destruct cancer cells. However, such effects are usually observed with ...
    • Report on Baby Boomers and Older Adults: Information and Service Needs 

      Brossoie, Nancy.; Roberto, Karen A.; Willis-Walton, S.; Reynolds, S. (2011)
      In 2010, with a grant from the U.S. Administration on Aging, the Eldercare Locator partnered with the Center for Gerontology and the Center for Survey Research at Virginia Tech to conduct a telephone survey with Baby Boomers ...
    • A Review on Low-Grade Thermal Energy Harvesting: Materials, Methods and Devices 

      Kishore, Ravi Anant; Priya, Shashank (MDPI, 2018-08-14)
      Combined rejected and naturally available heat constitute an enormous energy resource that remains mostly untapped. Thermal energy harvesting can provide a cost-effective and reliable way to convert available heat into ...
    • Room temperature ferromagnetic resonance in hetero-epitaxial BTO-BFO/LSMO magnetoelectric composite 

      Madon, Benjamin; Kang, Han Byul; Kang, Min Gyu; Maurya, Deepam; Magill, Brenden A.; Alves, Marcos J.P.; Wegrowe, Jean-Eric; Drouhin, Henri-Jean; Priya, Shashank; Khodaparast, Giti A. (American Institute of Physics, 2018-10-30)
      We synthesized epitaxial BTO-BFO heterostructure with decreased leakage and simultaneously improved the multiferroic properties. This study provides new direction for ferromagnetic resonance studies, in high quality BTO-BFO ...
    • Room-temperature magnetoelectric coupling in single-phase BaTiO3-BiFeO3 system 

      Yang, Su-Chul; Kumar, Ashok; Petkov, Valeri; Priya, Shashank (American Institute of Physics, 2013-04-14)
      In this paper, single-phase multiferroic ceramics of (1 - x) BaTiO3 - x BiFeO3 (BT - x BFO) were synthesized by solid-solution method in the wide range of material composition (x = 0.025 - 1.0). The changes in crystal ...
    • scattering kernels for the muon diffusion equation 

      Rusjan, E.; Zweifel, P. F. (American Physical Society, 1988-08)
      Diffusion of muonic hydrogen atoms in gaseous hydrogen is studied. Scattering kernels are derived from the kinematics of an inelastic binary collision. The effect of rotations of the hydrogen molecules is treated by defining ...
    • Science of Team Science 

      Foti, Roseanne J. (2012-10-12)
      Psychology researcher Roseanne J. Foti, Ph.D., describes the Knowledge, Skills, and Attitudes of effective teams and proposes collaborating in the creation and evaluation of science teams at the Center for Autism Research.