Now showing items 282-301 of 518

    • Magnetic field of the transition current system: dawn-dusk asymmetry 

      Belenkaya, E. S.; Alexeev, I. I.; Clauer, C. R. Jr. (Copernicus Publications, 2007)
      In this paper we consider the interactions of coronal mass ejections (CMEs) with the Earth's magnetosphere for the specific case in which there is a sharp increase in the dynamic pressure (interplanetary shock) that is ...
    • Magnetoelectric quasi-(0-3) nanocomposite heterostructures 

      Li, Yanxi; Wang, Zhongchang; Yao, Jianjun; Yang, Tiannan; Wang, Zhiguang; Hu, Jia-Mian; Chen, Chunlin; Sun, Rong; Tian, Zhipeng; Li, Jiefang; Chen, Long-Qing; Viehland, Dwight D. (Nature Publishing Group, 2015-12-01)
      Magnetoelectric composites of magnetic and ferroelectric components are promising for their use in applications such as information storage. Here, the authors find that magnetic quasiparticles embedded in a ferroelectric ...
    • Magnetotail total pressure and lobe magnetic field at onsets of sawtooth events and their relation to the solar wind 

      Huang, Chao-Song; Cai, Xia (American Geophysical Union, 2009-04-01)
      Sawtooth events in the Earth's magnetosphere are global, large-amplitude oscillations of energetic plasma particle fluxes at geosynchronous orbit and represent periodic magnetospheric substorms with a typical period of ...
    • Many-to-many space-time network coding for amplify-and-forward cooperative networks: node selection and performance analysis 

      Baidas, Mohammed W.; MacKenzie, Allen B. (2014-03-26)
      In this paper, the multinode amplify-and-forward cooperative communications for a network of N nodes is studied via the novel concept of many-to-many space-time network coding (M2M-STNC). Communication under the M2M-STNC ...
    • mAPC-GibbsOS: an integrated approach for robust identification of gene regulatory networks 

      Shi, Xu; Gu, Jinghua; Chen, Xi; Shajahan, Ayesha; Hilakivi-Clarke, Leena; Clarke, Robert; Xuan, Jianhua (2013-12-09)
      Background Identification of cooperative gene regulatory network is an important topic for biological study especially in cancer research. Traditional approaches suffer from large noise in gene expression data and false ...
    • A Markov process model of ocean sediments 

      Sockell, Michael; Besieris, Ioannis M.; Kohler, Werner E.; Freese, Herbert (Acoustical Society of America, 1985-01-01)
      Monochromatic plane-wave illumination of a randomly stratified, laterally homogeneous sediment layer is considered. The deposition process creating the stochastic layering is assumed to be a continuous parameter, finite ...
    • A Master/Slave Approach to Power Flow and Overvoltage Control in Low-Voltage Microgrids 

      Cavraro, Guido; Caldognetto, Tommaso; Carli, Ruggero; Tenti, Paolo (MDPI, 2019-07-18)
      This paper proposes a technique to control distributed energy resources in low-voltage microgrids aiming at (i) allowing power flow control at the point of connection with the upstream grid, (ii) keeping voltage profiles ...
    • Mathematical modelling of transcriptional heterogeneity identifies novel markers and subpopulations in complex tissues 

      Wang, Niya; Hoffman, Eric P.; Chen, Lulu; Chen, Li; Zhang, Zhen; Liu, Chunyu; Yu, Guoqiang; Herrington, David M.; Clarke, Robert; Wang, Yue (Springer Nature, 2016-01-07)
      Tissue heterogeneity is both a major confounding factor and an underexploited information source. While a handful of reports have demonstrated the potential of supervised computational methods to deconvolute tissue ...
    • Maximizing Distributed Energy Resource Hosting Capacity of Power System in South Korea Using Integrated Feeder, Distribution, and Transmission System 

      Widiputra, Victor; Kong, Junhyuk; Yang, Yejin; Jung, Jaesung; Broadwater, Robert (MDPI, 2020-07-01)
      Intermittent power generated from renewable distributed energy resource (DER) can create voltage stability problems in the system during peak power production in the low demand period. Thus, the existing standard for ...
    • 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 and Modeling On-chip Interconnect Power on Real Hardware 

      Adhinarayanan, V.; Paul, I.; Greathouse, J.; Huang, W.; Pattnaik, A.; Feng, W. (Ieee, 2016-09-26)
      On-chip data movement is a major source of power consumption in modern processors, and future technology nodes will exacerbate this problem. Properly understanding the power that applications expend moving data is vital ...
    • Measuring Microwave Shielding Effectiveness in Liquid-Nitrogen 

      Namboodri, S. L.; Davis, William A.; Kander, R. G. (AIP Publishing, 1994-04-01)
      A technique to distinguish between materials that can and cannot shield microwaves in liquid nitrogen was developed. The samples are placed in a modified X-band waveguide, which operates by the same ''insertion loss'' ...
    • Medical Monitoring Applications for Wearable Computing 

      Raskovic, Dejan; Martin, Thomas; Jovanov, Emil (The British Computer Society, 2004-04-01)
      Medical monitors have benefited from technological advances in the field of wireless communication, processing and power sources. These advances have made possible miniaturization and prolonged operating times of medical ...
    • Mendelian inheritance of trimodal CpG methylation sites suggests distal cis-acting genetic effects 

      Zaghlool, Shaza B.; Al-Shafai, Mashael; Al Muftah, Wadha A.; Kumar, Pankaj; Gieger, Christian; Waldenberger, Melanie; Falchi, Mario; Suhre, Karsten (2016-11-22)
      Abstract Background Environmentally influenced phenotypes, such as obesity and insulin resistance, can be transmitted over multiple generations. Epigenetic modifications, ...
    • Metalorganic chemical vapor deposition of layered structure oxides 

      Electrical and Computer Engineering; Sharp Kabushiki; Cedraeus Incorporated; Virginia Polytechnic Institute and State University; Desu, Seshu B.; Tao, W. (United States Patent and Trademark Office, 1995-12-26)
      A method of fabricating high quality layered structure oxide ferroelectric thin films. The deposition process is a chemical vapor deposition process involving chemical reaction between volatile metal organic compounds of ...
    • MetaMorph: A Library Framework for Interoperable Kernels on Multi- and Many-Core Clusters 

      Helal, A.; Sathre, P.; Feng, W. (2016-11-15)
      To attain scalable performance efficiently, the HPC community expects future exascale systems to consist of multiple nodes, each with different types of hardware accelerators. In addition to GPUs and Intel MICs, additional ...
    • 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 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 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 ...