Browsing College of Engineering (COE) by Title

Now showing items 4006-4010 of 4010

    • You've Got Mail! Calendar, Weather and More: Customizable Phone Access to Personal Information 

      Pérez-Quiñones, Manuel A.; Rode, Jochen (Department of Computer Science, Virginia Polytechnic Institute & State University, 2004), TR-04-21
      We present a design and a prototype of a system that provides access to calendar, email, weather, and news information over a phone using a VoiceXML interface. The system provides quick access to personal information, while ...

    • Young's modulus and hysteretic losses of 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3): single versus polycrystalline forms 

      Viehland, Dwight D.; Li, Jiefang (American Institute of Physics, 2003-12-15)
      Young's modulus (Y) of 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) has been investigated for polycrystals and single crystals oriented along <001>, <110>, and <111>. The value of Y-<001> and Y-<110> for single crystals was dramatically ...

    • Youth Football Helmet STAR Methodology 

      Campolettano, Eamon T.; Sproule, David W.; Begonia, Mark; Rowson, Steven (Virginia Tech, 2019-03-19)
      This document details the protocol used by the Virginia Tech Helmet Ratings to rate youth football helmets based on concussion risk.

    • Zero-current transition PWM converters 

      Electrical and Computer Engineering; Center for Power Electronics Systems (CPES); Center for Innovative Technology; Intellectual Properties | Kft; Virginia Polytechnic Institute and State University; Lee, Fred C.; Hua, Guichao C. (United States Patent and Trademark Office, 1996-01-23)
      A zero-current transition pulse-width modulated (ZCT-PWM) d.c.-d.c. converter allows minority-carrier semiconductor devices such as, for example, bipolar junction transistors (BJTs), insulated gate bipolar transistors ...

    • ZrO2 Thin-Film-Based Sapphire Fiber Temperature Sensor 

      Wang, Jiajun; Lally, Evan M.; Wang, Xiaoping; Gong, Jianmin; Pickrell, Gary R.; Wang, Anbo (Optical Society of America, 2012-10-01)
      A submicrometer-thick zirconium dioxide film was deposited on the tip of a polished C-plane sapphire fiber to fabricate a temperature sensor that can work to an extended temperature range. Zirconium dioxide was selected ...