Now showing items 184-203 of 518

    • Gaussian decomposition of beams and other functions 

      Dewolf, David A. (American Institute of Physics, 1989-06-15)
      The Gabor expansion of a function f_(x) decomposes it into a double sum over integers m and n of a product of basis functions g(x_m X) and Fourier_series exponentials exp(2πi n/X) for given spacing X. The choice of basis ...
    • Gaussian-beam profile shaping by acousto-optic Bragg-diffraction 

      McNeill, M. D.; Poon, Ting-Chung (Optical Society of America, 1994)
      We study how Gaussian laser-beam profiles can be modified into a desired form using acousto-optic Bragg diffraction. By exploiting the angular dependence of Bragg diffraction of plane waves by acoustic gratings, we demonstrate ...
    • GC-on-chip: integrated column and photoionization detector 

      Akbar, Muhammad; Shakeel, Hamza; Agah, Masoud (The Royal Society of Chemistry, 2015-02-04)
      This paper reports a unique GC-on-chip module comprising a monolithically integrated semi-packed micro separation column (μSC) and a highly sensitive micro helium discharge photoionization detector (μDPID). While semi-packed ...
    • Gene Selection for Multiclass Prediction by Weighted Fisher Criterion 

      Xuan, Jianhua; Wang, Yue; Dong, Yibin; Feng, Yuanjian; Wang, Bin; Khan, Javed; Bakay, Maria; Wang, Zuyi; Pachman, Lauren; Winokur, Sara; Chen, Yi-Wen; Clarke, Robert; Hoffman, Eric (2007-07-10)
      Gene expression profiling has been widely used to study molecular signatures of many diseases and to develop molecular diagnostics for disease prediction. Gene selection, as an important step for improved diagnostics, ...
    • Genetic spot optimization for peak power estimation in large VLSI circuits 

      Hsiao, Michael S. (Hindawi Publishing Corporation, 2001-07-10)
      Estimating peak power involves optimization of the circuit's switching function. The switching of a given gate is not only dependent on the output capacitance of the node, but also heavily dependent on the gate delays in ...
    • Genome-wide identification of significant aberrations in cancer genome 

      Yuan, Xiguo; Yu, Guoqiang; Hou, Xuchu; Shih, Ie-Ming; Clarke, Robert; Zhang, Junying; Hoffman, Eric P.; Wang, Roger R.; Zhang, Zhen; Wang, Yue (2012-07-27)
      Background Somatic Copy Number Alterations (CNAs) in human genomes are present in almost all human cancers. Systematic efforts to characterize such structural variants must effectively distinguish significant consensus ...
    • Germanium Based Field-Effect Transistors: Challenges and Opportunities 

      Goley, Patrick S.; Hudait, Mantu K. (MDPI, 2014-03-19)
      The performance of strained silicon (Si) as the channel material for today’s metal-oxide-semiconductor field-effect transistors may be reaching a plateau. New channel materials with high carrier mobility are being investigated ...
    • Gold/QDs-Embedded-Ceria Nanoparticles: Optical Fluorescence Enhancement as a Quenching Sensor 

      Shehata, Nader; Samir, Effat; Kandas, Ishac (MDPI, 2020-02-12)
      This work focuses on improving the fluorescence intensity of cerium oxide (ceria) nanoparticles (NPs) through added plasmonic nanostructures. Ceria nanoparticles are fluorescent nanostructures which can emit visible ...
    • GPS phase scintillation and proxy index at high latitudes during a moderate geomagnetic storm 

      Prikryl, P.; Ghoddousi-Fard, R.; Kunduri, B. S. R.; Thomas, E. G.; Coster, A. J.; Jayachandran, P. T.; Spanswick, E.; Danskin, D. W. (Copernicus Publications, 2013)
      The amplitude and phase scintillation indices are customarily obtained by specialised GPS Ionospheric Scintillation and TEC Monitors (GISTMs) from L1 signal recorded at the rate of 50 Hz. The scintillation indices S-4 and ...
    • GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012-Part 1: The North American sector 

      Prikryl, P.; Ghoddousi-Fard, R.; Thomas, E. G.; Ruohoniemi, J. M.; Shepherd, S. G.; Jayachandran, P. T.; Danskin, D. W.; Spanswick, E.; Zhang, Y.; Jiao, Y.; Morton, Y. T. (European Geosciences Union, 2015)
      The interval of geomagnetic storms of 7-17 March 2012 was selected at the Climate and Weather of the Sun-Earth System (CAWSES) II Workshop for group study of space weather effects during the ascending phase of solar cycle ...
    • GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012-Part 2: Interhemispheric comparison 

      Prikryl, P.; Ghoddousi-Fard, R.; Spogli, L.; Mitchell, C. N.; Li, G.; Ning, B.; Cilliers, P. J.; Sreeja, V.; Aquino, M.; Terkildsen, M.; Jayachandran, P. T.; Jiao, Y.; Morton, Y. T.; Ruohoniemi, J. M.; Thomas, E. G.; Zhang, Y.; Weatherwax, A. T.; Alfonsi, L.; De Franceschi, G.; Romano, V. (European Geosciences Union, 2015)
      During the ascending phase of solar cycle 24, a series of interplanetary coronal mass ejections (ICMEs) in the period 7-17 March 2012 caused geomagnetic storms that strongly affected high-latitude ionosphere in the Northern ...
    • Gratings Superposed Spatially By Writing in Laterally Separated Regions 

      Gradishar, T. L.; Safaai-Jazi, A. (Optical Society of America, 2005)
      A new type of gratings superposed spatially in laterally separated areas of the guide is introduced and analyzed using coupled-mode theory. The guided mode overlaps the constituent gratings and sees the superposition of ...
    • Green Small Cell Operation of Ultra-Dense Networks Using Device Assistance 

      Lee, Gilsoo; Kim, Hongseok (MDPI, 2016-12-16)
      As higher performance is demanded in 5G networks, energy consumption in wireless networks increases along with the advances of various technologies, so enhancing energy efficiency also becomes an important goal to implement ...
    • Ground-based instruments of the PWING project to investigate dynamics of the inner magnetosphere at subauroral latitudes as a part of the ERG-ground coordinated observation network 

      Shiokawa, Kazuo; Katoh, Yasuo; Hamaguchi, Yoshiyuki; Yamamoto, Yuka; Adachi, Takumi; Ozaki, Mitsunori; Oyama, Shin-Ichiro; Nosé, Masahito; Nagatsuma, Tsutomu; Tanaka, Yoshimasa; Otsuka, Yuichi; Miyoshi, Yoshizumi; Kataoka, Ryuho; Takagi, Yuki; Takeshita, Yuhei; Shinbori, Atsuki; Kurita, Satoshi; Hori, Tomoaki; Nishitani, Nozomu; Shinohara, Iku; Tsuchiya, Fuminori; Obana, Yuki; Suzuki, Shin; Takahashi, Naoko; Seki, Kanako; Kadokura, Akira; Hosokawa, Keisuke; Ogawa, Yasunobu; Connors, Martin; Michael Ruohoniemi, J.; Engebretson, Mark; Turunen, Esa; Ulich, Thomas; Manninen, Jyrki; Raita, Tero; Kero, Antti; Oksanen, Arto; Back, Marko; Kauristie, Kirsti; Mattanen, Jyrki; Baishev, Dmitry; Kurkin, Vladimir; Oinats, Alexey; Pashinin, Alexander; Vasilyev, Roman; Rakhmatulin, Ravil; Bristow, William; Karjala, Marty (2017-11-28)
      Abstract The plasmas (electrons and ions) in the inner magnetosphere have wide energy ranges from electron volts to mega-electron volts (MeV). These plasmas rotate around the Earth longitudinally due to the ...
    • Growth, strain relaxation properties and high-kappa dielectric integration of mixed-anion GaAs1-ySby metamorphic materials 

      Zhu, Yizheng; Clavel, M.; Goley, P.; Hudait, Mantu K. (American Institute of Physics, 2014-10-17)
      Mixed-anion, GaAs1-ySby metamorphic materials with a wide range of antimony (Sb) compositions extending from 15% to 62%, were grown by solid source molecular beam epitaxy (MBE) on GaAs substrates. The impact of different ...
    • Growth, structural, and electrical properties of germanium-on-silicon heterostructure by molecular beam epitaxy 

      Ghosh, Aheli; Clavel, Michael B.; Nguyen, Peter D.; Meeker, Michael A.; Khodaparast, Giti A.; Bodnar, Robert J.; Hudait, Mantu K. (American Insitute of Physics, 2017)
      The growth, morphological, and electrical properties of thin-film Ge grown by molecular beam epitaxy on Si using a two-step growth process were investigated. High-resolution x-ray diffraction analysis demonstrated 0.10% ...
    • A Hardware-Accelerated ECDLP with High-Performance Modular Multiplication 

      Judge, Lyndon; Mane, Suvarna; Schaumont, Patrick Robert (Hindawi Publishing Corporation, 2012-09-01)
      Elliptic curve cryptography (ECC) has become a popular public key cryptography standard. The security of ECC is due to the difficulty of solving the elliptic curve discrete logarithm problem (ECDLP). In this paper, we ...
    • Heterogeneous Integration of Epitaxial Ge on Si using AlAs/GaAs Buffer Architecture: Suitability for Low-power Fin Field-Effect Transistors 

      Hudait, M. K.; Clavel, M.; Goley, P.; Jain, N.; Zhu, Y. (Nature Publishing Group, 2014-11-07)
    • Heterogeneous integration of InAs/GaSb tunnel diode structure on silicon using 200 nm GaAsSb dislocation filtering buffer 

      Liu, J.-S.; Clavel, M.; Pandey, R.; Datta, S.; Xie, Y.; Heremans, J.J.; Hudait, M.K. (AIP Publishing, 2018-10-08)
      An InAs/GaSb tunnel diode structure was heterogeneously integrated on silicon by solid source molecular beam epitaxy using a 200 nm strained GaAs1-ySby dislocation filtering buffer. X-ray analysis demonstrated near complete ...
    • High correlations between temperature and nitric oxide in the thermosphere 

      Weimer, D. R.; Mlynczak, M. G.; Hunt, L. A.; Tobiska, W. K. (Amer Geophysical Union, 2015-07-01)
      Obtaining accurate predictions of the neutral density in the thermosphere has been a long-standing problem. During geomagnetic storms the auroral heating in the polar ionospheres quickly raises the temperature of the ...