Now showing items 391-410 of 483

    • Reading Self-Perceived Ability, Enjoyment and Achievement: A Genetically Informative Study of Their Reciprocal Links Over Time 

      Malanchini, Margherita; Wang, Zhe; Voronin, Ivan; Schenker, Victoria J.; Plomin, Robert; Petrill, Stephen A.; Kovas, Yulia (2017-04)
      Extant literature has established a consistent association between aspects of reading motivation, such as enjoyment and self-perceived ability, and reading achievement, in that more motivated readers are generally more ...
    • 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)
    • Recent Progress on PZT Based Piezoelectric Energy Harvesting Technologies 

      Kang, Min-Gyu; Jung, Woo-Suk; Kang, Chong-Yun; Yoon, Seok-Jin (MDPI, 2016-02-22)
      Energy harvesting is the most effective way to respond to the energy shortage and to produce sustainable power sources from the surrounding environment. The energy harvesting technology enables scavenging electrical energy ...
    • 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.
    • Searching for quantitative biomarkers of ASD using computational approaches and rapid assessment fMRI 

      Kishida, Kenneth (2012-10-12)
      Kenneth Kishida, a research scientist at the Virginia Tech Carilion Research Institute, proposes the use of functional Magnetic Resonance Imaging assays for classifying neural subtypes of children with autism spectrum disorders.
    • Self-assembled NaNbO3-Nb2O5 (ferroelectric-semiconductor) heterostructures grown on LaAlO3 substrates 

      Wang, Zhiguang; Li, Yanxi; Chen, Bo; Viswan, Ravindranath; Li, Jiefang; Viehland, Dwight D. (AIP Publishing, 2012-09-01)
      We deposited NaNbO3 (NNO)-Nb2O5 (NO) self-assembled heterostructures on LaAlO3 (LAO) to form ferroelectric-semiconductor vertically integrated nanostructures. The NNO component formed as nanorods embedded in a NO matrix. ...
    • Self-biased converse magnetoelectric effect 

      Yang, Su-Chul; Cho, Kyung-Hoon; Park, Chee-Sung; Priya, Shashank (AIP Publishing, 2011-11-01)
      In this letter, we investigate the direct magnetoelectric (DME) and converse magnetoelectric (CME) effects in three-phase metal-ceramic laminate composites. Longitudinally poled and transversely magnetized (L-T) laminate ...
    • Semiconductor module arrangement 

      Virginia Tech Intellectual Properties, Inc.; DiMarino, Christina; Boroyevich, Dushan; Burgos, Rolando P.; Johnson, Mark (United States Patent and Trademark Office, 2018-07-24)
      In a switching module structure that includes a low-impedance path to ground, such as a parasitic capacitance of an insulating substrate, a further insulating substrate presenting a parasitic capacitance placed in series ...
    • Shape Sensitivity Analysis in Flow Models Using a Finite-Difference Approach 

      Akhtar, Imran; Borggaard, Jeffrey T.; Hay, Alexander (Hindawi Publishing Corporation, 2010)
      Reduced-order models have a number of practical engineering applications for unsteady flows that require either low-dimensional approximations for analysis and control or repeated simulation over a range of parameter values. ...
    • Should We Trust Science? Perspectives from the History and Philosophy of Science 

      Oreskes, Naomi (Virginia Tech. University Libraries, 2015-09-02)
      The Global Change Center at Virginia Tech welcomed Dr. Naomi Oreskes, Harvard historian and author, for a Distinguished Lecture on September 2, 2015, at 4:00 p.m. at the Lyric Theatre in Blacksburg, VA. Dr. Oreskes is a ...
    • Size dependent ion-exchange of large mixed-metal complexes into Nafion® membranes 

      Naughton, Elise M.; Zhang, Mingqiang; Troya, Diego; Brewer, Karen J.; Moore, Robert B. (The Royal Society of Chemistry, 2015-08-18)
      Perfluorosulfonate ionomers have been shown to demonstrate a profound affinity for large cationic complexes, and the exchange of these ions may be used to provide insight regarding Nafion® morphology by contrasting molecular ...
    • Specific Emitter Identification Using Convolutional Neural Network-Based IQ Imbalance Estimators 

      Wong, Lauren J.; Headley, William Christopher; Michaels, Alan J. (IEEE, 2019)
      Specific Emitter Identification is the association of a received signal to a unique emitter, and is made possible by the naturally occurring and unintentional characteristics an emitter imparts onto each transmission, known ...
    • Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications 

      Palneedi, Haribabu; Annapureddy, Venkateswarlu; Priya, Shashank; Ryu, Jungho (MDPI, 2016-03-09)
      Multiferroic magnetoelectric (ME) composites are attractive materials for various electrically and magnetically cross-coupled devices. Many studies have been conducted on fundamental understanding, fabrication processes, ...
    • Structural Resemblance Between Droop Controllers and Phase-Locked Loops 

      Zhong, Qing-Chang; Boroyevich, Dushan (IEEE, 2016)
      It is well known that droop control is fundamental to the operation of power systems and now the parallel operation of inverters, while phase-locked loops (PLLs) are widely adopted in modern electrical engineering. In this ...