Now showing items 214-233 of 492

    • GSA Tomorrow: An Open Challenge to Promote the Future of Geoscience 

      Dorfler, Kristin M.; Friedrich, Anke M. (Geological Society of America, 2018-11-20)
      The future of geoscience rests on your shoulders. Geologists are passionate about their science and discuss their interests with vigor, firmly understanding why geoscience is as important to society as physiology, agriculture, ...
    • Harvesting Energy from the Counterbalancing (Weaving) Movement in Bicycle Riding 

      Yang, Yoonseok; Yeo, Jeongjin; Priya, Shashank (MDPI, 2012-07-30)
      Bicycles are known to be rich source of kinetic energy, some of which is available for harvesting during speedy and balanced maneuvers by the user. A conventional dynamo attached to the rim can generate a large amount of ...
    • High efficiency planar-type perovskite solar cells with negligible hysteresis using EDTA-complexed SnO2 

      Yang, Dong; Yang, Ruixia; Wang, Kai; Wu, Congcong; Zhu, Xuejie; Feng, Jiangshan; Ren, Xiaodong; Fang, Guojia; Priya, Shashank; Liu, Shengzhong (Frank) (Springer Nature, 2018-08-13)
      Even though the mesoporous-type perovskite solar cell (PSC) is known for high efficiency, its planar-type counterpart exhibits lower efficiency and hysteretic response. Herein, we report success in suppressing hysteresis ...
    • High frequency integrated point-of-load power converter with embedded inductor substrate 

      Virginia Tech Intellectual Properties, Inc.; Li, Qiang; Lee, Fred C.; Su, Yipeng; Zhang, Wenli (United States Patent and Trademark Office, 2017-02-07)
      A low profile power converter structure is provide wherein volume is reduced and power density is increased to approach 1 KW/in3 by at least one of forming an inductor as a body of magnetic material embedded in a substrate ...
    • High thermal stability of piezoelectric properties in (Na0.5Bi0.5TiO3)(x)-(BaTiO3)(y)-(Na0.5K0.5NbO3)(1-x-y) ceramics 

      Gupta, Sanjay; Priya, Shashank (AIP Publishing, 2013-01-01)
      We report the piezoelectric and ferroelectric properties of (Na0.5Bi0.5TiO3)(x)-(BaTiO3)(y)-(Na0.5K0.5NbO3)(1-x-y) ceramics for Na0.5K0.5NbO3 rich end of composition (x, y <= 0.04 mol. %). These compositions were found to ...
    • High-Efficiency Skutterudite Modules at a Low Temperature Gradient 

      Li, Wenjie; Stokes, David; Poudel, Bed; Saparamadu, Udara; Nozariasbmarz, Amin; Kang, Han Byul; Priya, Shashank (MDPI, 2019-11-11)
      Thermoelectric skutterudite materials have been widely investigated for their potential application in mid-temperature waste heat recovery that has not been efficiently utilized A large amount of research has focused on ...
    • High-Extraction Mining, Subsidence, and Virginia’s Water Resources 

      Roth, Richard; Randolph, John; Zipper, Carl (Virginia Tech. Virginia Center for Coal and Energy Research., 1990-05)
      The Virginia Center for Coal and Energy Research was established in 1977 as an "interdisciplinary study, research, inrormation and resource facility for the Commonwealth. As a public service research organization, the ...
    • House and garden in sunshine 

      Gottlieb, Lois Davidson (Virginia Tech. Digital Library and Archives; Virginia Tech. University Libraries. Special Collections Department, 2005-01-06)
    • House in snow 

      Gottlieb, Lois Davidson (Virginia Tech. Digital Library and Archives; Virginia Tech. University Libraries. Special Collections Department, 2005-01-06)
    • House in snow 

      Gottlieb, Lois Davidson (Virginia Tech. Digital Library and Archives; Virginia Tech. University Libraries. Special Collections Department, 2005-01-06)
    • House in wooded area 

      Gottlieb, Lois Davidson (Virginia Tech. Digital Library and Archives; Virginia Tech. University Libraries. Special Collections Department, 2005-01-06)
    • Hybrid interleaving structure with adaptive phase locked loop for variable frequency controlled switching converter 

      Virginia Tech Intellectual Properties, Inc.; Li, Qiang; Liu, Pei-Hsin; Lee, Fred C. (United States Patent and Trademark Office, 2018-07-03)
      In a multi-phase power converter using a phase-locked loop (PLL) arrangement for interleaving of pulse frequency modulated (PFM) pulses of the respective phases, improved transient response, improved stability of high ...
    • Iaverage current mode (ACM) control for switching power converters 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Mattavelli, Paolo; Yan, Yingyi (United States Patent and Trademark Office, 2016-05-17)
      Providing a fast current sensor direct feedback path to a modulator for controlling switching of a switched power converter in addition to an integrating feedback path which monitors average current for control of a modulator ...
    • IAWA Archivist's Annual Report 2003-2004 

      Meehan, Jennifer (Archivist) (International Archive of Women in Architecture, 2004-08-27)
    • IAWA Archivist's Annual Report 2005 

      McMillan, Gail; Shaffer, Amy (International Archive of Women in Architecture, 2005-10-30)
    • IAWA Archivist's Report for 2000/2001 

      International Archive of Women in Architecture (International Archive of Women in Architecture, 2001)
    • IAWA Archivist's Report for 2001/2002 

      McMillan, Gail (International Archive of Women in Architecture, 2002)
    • IAWA Archivist's Report for 2005/06 

      McMillan, Gail; Vilelle, Amy Shaffer (International Archive of Women in Architecture, 2006)
    • IAWA Archivist's Report for 2006/07 

      McMillan, Gail; Vilelle, Amy Shaffer (International Archive of Women in Architecture, 2007)
    • IAWA Archivist’s Report, 2007-2008 

      Purcell, Aaron D. (Virginia Tech, 2008)
      The IAWA was established in 1985 as a collaborative project between the College of Architecture and Urban Studies and the University Libraries at Virginia Tech. It is overseen by a board of advisors that includes architects, ...