Now showing items 331-350 of 491

    • Living in the Anthropocene: Science, Sustainability and Society 

      Tewksbury, Joshua
      Dr. Joshua Tewksbury is an ecologist, conservation biologist, and planetary health scientist with experience both in academia and in civil society. In addition to his appointment at Future Earth, Tewksbury is also a research ...
    • Living room 

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

      Gottlieb, Lois Davidson (Virginia Tech. Digital Library and Archives; Virginia Tech. University Libraries. Special Collections Department, 2005-01-06)
    • Local improvements to reduced-order models using sensitivity analysis of the proper orthogonal decomposition 

      Hay, A.; Borggaard, Jeffrey T.; Pelletier, D. (Cambridge University Press, 2009-06)
      The proper orthogonal decomposition (POD) is the prevailing method for basis generation in the model reduction of fluids. A serious limitation of this method, however, is that it is empirical. In other words, this basis ...
    • Low profile coupled inductor substrate with transient speed improvement 

      Virginia Tech Intellectual Properties, Inc.; Li, Qiang; Lee, Fred C.; Su, Yipeng; Hou, Dongbin (United States Patent and Trademark Office, 2018-10-23)
      A low profile inductor structure suitable for use in a high power density power converter has one or more windings formed by vias through a thin, generally planar body of magnetic material forming the inductor core and ...
    • Low-cost sensor-integrated 3D-printed personalized prosthetic hands for children with amniotic band syndrome: A case study in sensing pressure distribution on an anatomical human-machine interface (AHMI) using 3D-printed conformal electrode arrays 

      Tong, Yuxin; Kucukdeger, Ezgi; Halper, Justin; Cesewski, Ellen; Karakozoff, Elena; Haring, Alexander P.; McIlvain, David; Singh, Manjot; Khandelwal, Nikita; Meholic, Alex; Laheri, Sahil; Sharma, Akshay; Johnson, Blake N. (PLOS, 2019)
      Interfacing anatomically conformal electronic components, such as sensors, with biology is central to the creation of next-generation wearable systems for health care and human augmentation applications. Thus, there is a ...
    • Low-frequency nanotesla sensitivity in Metglas/piezoelectric/carbon fiber/piezoelectric composites with active tip mass 

      Park, C. S.; Avirovik, D.; Bressers, S.; Priya, Shashank (AIP Publishing, 2011-02-01)
      We report nanotesla sensitivity in Metglas/piezoelectric/carbon fiber/piezoelectric laminates with active tip mass operating in the vicinity of second bending mode. The peak magnetoelectric response for the laminate with ...
    • Magnetoelectric Interactions in Lead-Based and Lead-Free Composites 

      Bichurin, Mirza I.; Petrov, Vladimir M.; Zakharov, Anatoly; Kovalenko, Denis; Yang, Su Chul; Maurya, Deepam; Bedekar, Vishwas; Priya, Shashank (MDPI, 2011-04-06)
      Magnetoelectric (ME) composites that simultaneously exhibit ferroelectricity and ferromagnetism have recently gained significant attention as evident by the increasing number of publications. These research activities are ...
    • Master bedroom 

      Gottlieb, Lois Davidson (Virginia Tech. Digital Library and Archives; Virginia Tech. University Libraries. Special Collections Department, 2005-01-06)
    • Materials for the Spine: Anatomy, Problems, and Solutions 

      Frost, Brody A.; Camarero-Espinosa, Sandra; Foster, E. Johan (MDPI, 2019-01-14)
      Disc degeneration affects 12% to 35% of a given population, based on genetics, age, gender, and other environmental factors, and usually occurs in the lumbar spine due to heavier loads and more strenuous motions. Degeneration ...
    • Maximum power point tracking for solar panels 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Wang, Feng; Wu, Xinke; Wang, Zijian (United States Patent and Trademark Office, 2017-06-20)
      Approximately one-half of the loss of delivered power from a solar panel having photovoltaic (PV) cells connected in series to form sub-panels due to shading is recovered at low hardware cost by connecting sub-panels in ...
    • Measuring Head Impact Exposure and Mild Traumatic Brain Injury in Humans 

      Cobb, Bryan (Brain Injuries and Biomechanics Symposium, 2013-09-19)
      Helmeted sports such as football offer a unique opportunity to study head injury biomechanics in live human subjects. Impact reconstruction using game videos and real-time measurements of head kinematics in football provide ...
    • Meeting Coal Production Demands in the USA: Upstream issues, challenges, and strategies 

      Gluskoter, Harold J.; Karmis, Michael E.; Luttrell, Gerald H.; Ramani, Raja V.; Vance, George F. (Virginia Tech. Virginia Center for Coal and Energy Research., 2008-12)
      The National Commission on Energy Policy (NCEP) commissioned this report to review and identify critical “upstream” fuel cycle issues that need to be addressed to ensure that the domestic coal industry can continue meeting ...
    • Mesh independence of Kleinman-Newton iterations for Riccati equations in Hilbert space 

      Burns, J. A.; Sachs, E. W.; Zietsman, L. (Siam Publications, 2008)
      In this paper we consider the convergence of the infinite dimensional version of the Kleinman-Newton algorithm for solving the algebraic Riccati operator equation associated with the linear quadratic regulator problem in ...
    • Metal-ceramic laminate composite magnetoelectric gradiometer 

      Bedekar, V.; Bichurin, Mirza I.; Ivanov, S. N.; Pukinskiy, Yuri J.; Priya, Shashank (AIP Publishing, 2010-03-01)
      Gradiometer resembles in functionality a magnetic field sensor where it measures the magnetic field gradient and its sensitivity is determined by the ability to quantify differential voltage change with respect to a reference ...
    • Method and apparatus for current/power balancing 

      Virginia Tech Intellectual Properties, Inc.; Toyota Motor Engineering & Manufacturing North American, Inc.; Wang, Chi-Ming; Mao, Yincan; Miao, Zichen; Ngo, Khai D. (United States Patent and Trademark Office, 2017-02-28)
      Aspects of the disclosure provide a power circuit that includes a first switch circuit in parallel with a second switch circuit. The first switch circuit and the second switch circuit are coupled to a first driving node, ...
    • Method and apparatus for current/power balancing 

      Virginia Tech Intellectual Properties, Inc.; Toyota Motor Engineering & Manufacturing North American, Inc.; Wang, Chi-Ming; Mao, Yincan; Miao, Zichen; Ngo, Khai D. (United States Patent and Trademark Office, 2018-03-20)
      Aspects of the disclosure provide a system having a power circuit. The power circuit includes a first switch circuit having at least a first transistor and a second switch circuit having at least a second transistor. ...
    • Method and apparatus for driving a power device 

      Virginia Tech Intellectual Properties, Inc.; Toyota Motor Engineering & Manufacturing North American, Inc.; Wang, Chi-Ming; Shin, Jongwon; Ngo, Khai D. (United States Patent and Trademark Office, 2016-12-27)
      Aspects of the disclosure provide a circuit for driving a power switch. The circuit includes a first circuit configured to provide a charging current to charge a control terminal of the power switch, a second circuit ...
    • Method and apparatus to improve power device reliability 

      Virginia Tech Intellectual Properties, Inc.; Toyota Motor Engineering & Manufacturing North American, Inc.; Wang, Chi-Ming; Mao, Yincan; Miao, Zichen; Ngo, Khai D. (United States Patent and Trademark Office, 2017-05-23)
      Aspects of the disclosure provide a power device that includes an upper power module and a lower power module. The upper power module and the lower power module are coupled in series between two supply voltages, and are ...
    • Method for reducing or eliminating conducted common mode noise in a transformer 

      Virginia Tech Intellectual Properties, Inc.; Li, Qiang; Lee, Fred C.; Huang, Daocheng; Yang, Yuchen (United States Patent and Trademark Office, 2017-03-07)
      At least one shield member interposed between primary and secondary windings of a transformer and connected to the primary and/or secondary windings forms a distributed parasitic capacitance between the shield member and ...