Now showing items 395-414 of 588

    • 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 

      Electrical and Computer Engineering; Center for Power Electronics Systems (CPES); Materials Science and Engineering (MSE); 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 ...
    • Menopausal Status, Climacteric Symptoms, and Family Related Variables in Korean Female Baby Boomers 

      Kim, Eunkyung; Lee, Kyung-Hae (Virginia Tech, 2012)
      In 2010, baby boomers (born between 1955 and 1963 in Korea) were 721 million and composed 14.6% of the total population in Korea. For the majority of women, the process of menopause occurs between ages 45 and 54. This means ...
    • 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 

      Electrical and Computer Engineering; Center for Power Electronics Systems (CPES); 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 

      Electrical and Computer Engineering; Center for Power Electronics Systems (CPES); 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 

      Electrical and Computer Engineering; Center for Power Electronics Systems (CPES); 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 

      Electrical and Computer Engineering; Center for Power Electronics Systems (CPES); 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 

      Electrical and Computer Engineering; Center for Power Electronics Systems (CPES); 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 ...
    • Methodology for assessing the biomechanical performance of helmets 

      Virginia Tech Intellectual Properties, Inc.; Duma, Stefan M.; Rowson, Steven; McNally, Craig (United States Patent and Trademark Office, 2017-10-24)
      The present invention provides a method for testing a helmet that uses a risk function that incorporates both linear and rotational acceleration to predict the helmet's ability to prevent a concussion. In certain embodiments, ...
    • Micrometer-scale Experimental Characterization of the Lower Huron Shale in the Central Appalachian Basin 

      Tan, Xinyu; Gilliland, Ellen; Tang, Xu; Fan, Ming; Ripepi, Nino (American Geophysical Union, 2020)
      The mechanical properties of shale play an important role in hydraulic fracturing design. Although the popular nanoindentation method can be performed to evaluate some mechanical characteristics of organic matter, it is ...
    • MII Technical Conference & Review 2018 : From Molecules to Manufacturing 

      Macromolecules Innovation Institute (Virginia Tech, 2018-04-11)
      "From Molecules to Manufacturing" is the 2018 Technical Conference & Review of the Macromolecules Innovation Institute at Virginia Tech. The abstract book contains a schedule of events and abstracts from poster sessions ...
    • Mild Cognitive Impairment (MCI): What do we do now? 

      Center for Gerontology (Virginia Tech. Center for Gerontology, 2006-10)
      This brochure provides information about mild cognitive impairment, including how to recognize the condition, seek medical help, and coping strategies for patients and families.
    • Mitigation of bidirectional solute flux in forward osmosis via membrane surface coating of zwitterion functionalized carbon nanotubes 

      Zou, Shiqiang; Smith, Ethan D.; Lin, Shihong; Martin, Stephen M.; He, Zhen (Elsevier, 2019-07-08)
      Forward osmosis (FO) has emerged as a promising membrane technology to yield high-quality reusable water from various water sources. A key challenge to be solved is the bidirectional solute flux (BSF), including reverse ...
    • Model Reduction for DAEs with an Application to Flow Control 

      Borggaard, Jeffrey T.; Gugercin, Serkan (Springer-Verlag Berlin, 2015-01-01)