Now showing items 1224-1243 of 3624

    • Fabrication and Evaluation of Trimethylmethoxysilane (TMMOS)-Derived Membranes for Gas Separation 

      Mise, Yoshihiro; Ahn, So-Jin; Takagaki, Atsushi; Kikuchi, Ryuji; Oyama, Shigeo Ted (MDPI, 2019-09-20)
      Gas separation membranes were fabricated with varying trimethylmethoxysilane (TMMOS)/tetraethoxy orthosilicate (TEOS) ratios by a chemical vapor deposition (CVD) method at 650 °C and atmospheric pressure. The membrane ...
    • Fabrication Of Holographic Gratings Using A Moving Point-Source 

      Post, Daniel; McKelvie, J.; Tu, M. R.; Dai, F. L. (Optical Society of America, 1989-02-01)
      In the manufacture of holographic gratings using coherent light there is an associated problem of optical noise, the conventional remedies for which involve various restrictions. In this work a moving point source is adopted ...
    • Fabry-Perot Fiber-Optic Sensors in Full-Scale Fatigue Testing on an F-15 Aircraft 

      Kent A. M.; Gunther, Michael F.; Vengsarkar, Ashish M.; Claus, Richard O. (Optical Society of America, 1992-02-01)
      We report results from fiber-optic-sensor field tests on an F-15 aircraft mounted within a full-scale test frame for the purpose of fatigue testing. Strain sensitivities of the order of 0.01 _m/m have been obtained.
    • Factors Affecting Strength Gain in Lime-Cement Columns and Development of a Laboratory Testing Procedure 

      Jesse R. Jacobson; Filz, George M.; James K. Mitchell (Virginia Center for Transportation Innovation and Research, 2003-06-01)
      Lime-cement columns were constructed to improve soft ground as part of a test embankment program at the I-95/Route interchange in Alexandria, Virginia. Two different commercial laboratories performed tests on treated soil, ...
    • Faculty Computer Literacy Project Final Report 

      Lee, John A. N.; Miller, Mary Guy (Department of Computer Science, Virginia Polytechnic Institute & State University, 1984), CS84013-R
      The emergence of computing as one of the fundamental disciplines threatens to overwhelm our future leaders unless some actions are taken immediately to provide a measure of literacy in the field to the student population ...
    • FAD, a Functional Programming Language that Supports Abstract Data Types 

      Martin, Johannes J. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1980), CS80005-R
      The paper outlines the programming language FAD. FAD is a functional programming system of the kind described by Backus [Backus78]. FAD supports abstract data types, parameterized types, and generic functions. A single ...
    • The Family Window: Perceived Usage and Privacy Concerns 

      Judge, Tejinder K.; Neustaedter, Carman (Department of Computer Science, Virginia Polytechnic Institute & State University, 2010), TR-10-01
      Families have a strong need to connect with their loved ones over distance. However, most technologies do not provide the same feelings of connectedness that one feels from seeing remote family members. Hence our goal was ...
    • Fanno Processes in Dense Gases 

      Cramer, Mark S.; Monaco, J. F.; Fabeny, B. M. (AIP Publishing, 1994-02-01)
      The global behavior of Fanno processes is examined for dense gases. It is shown that three sonic points corresponding to two local maxima and one local minimum in the entropy can occur if the fluid is of the Bethe-Zel'do ...
    • A Fast and Efficient Method Dispatching Statically Typed MultipleInheritance Object-Oriented Languages 

      Lee, Keung Hae; Kafura, Dennis G. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1989), TR-89-40
      Inheritance is an invaluable mechanism for object-oriented programming. The benefits of inheritance have been well recognized over the last few years. However, these benefits typically come at the expense of run time ...
    • Fast CT Reconstruction - Practical Performance via Parallelization 

      Wang, Ge (2008-06-12)
      Parallel computing has been used to solve large-scale problems in many fields. While CT is being developed towards high-resolution, volumetric, dynamic and spectral imaging, datasets become increasingly large, and ...
    • A Fast CT Reconstruction Scheme for a General Multi-Core PC 

      Zeng, Kai; Bai, Erwei; Wang, Ge (Hindawi, 2007-07-04)
      Expensive computational cost is a severe limitation in CT reconstruction for clinical applications that need real-time feedback. A primary example is bolus-chasing computed tomography (CT) angiography (BCA) that we have ...
    • Fast Detection of Transformed Data Leaks 

      Shu, Xiaokui; Zhang, Jing; Yao, Danfeng (Daphne); Feng, Wu-chun (Ieee-Inst Electrical Electronics Engineers Inc, 2016-03-01)
    • Fast Extended Depth-of-Field Reconstruction for Complex Holograms Using Block Partitioned Entropy Minimization 

      Tsang, Peter Wai Ming; Poon, Ting-Chung; Liu, Jung-Ping (MDPI, 2018-05-21)
      Optical scanning holography (OSH) is a powerful and effective method for capturing the complex hologram of a three-dimensional (3-D) scene. Such captured complex hologram is called optical scanned hologram. However, ...
    • Fast generation of Fresnel holograms based on multirate filtering 

      Tsang, P.; Liu, J. Ping; Cheung, W. K.; Poon, Ting-Chung (Optical Society of America, 2009-12-01)
      One of the major problems in computer-generated holography is the high computation cost involved for the calculation of fringe patterns. Recently, the problem has been addressed by imposing a horizontal parallax only ...
    • Fast Method of Recovering Reference-Wave Intensity in Two-Step-Only Quadrature Phase-Shifting Holography 

      Zhou, Wen-Jing; Zheng, Caifu; Poon, Ting-Chung (MDPI, 2017-10-19)
      We present a simple yet effective method, without the need for any additional recording of intensity maps or tremendous iterative computations, to recover reference-wave intensity resulting from the complex hologram acquired ...
    • Fast multi-level test generation at the RTL 

      Hsiao, Michael S.; Gent, Kelson (2016-07)
      Functional, at-speed vectors continue to provide added value to the testing community as circuit complexity rises. Complex defects may escape traditional scan vectors and thus often require at-speed patterns. However, ...
    • Fast numerical generation and encryption of computer-generated Fresnel holograms 

      Tsang, Peter Wai Ming; Poon, Ting-Chung; Cheung, K. W. K. (Optical Society of America, 2011-03-01)
      In the past two decades, generation and encryption of holographic images have been identified as two important areas of investigation in digital holography. The integration of these two technologies has enabled images to ...
    • Fast Projection Algorithm for LIM-Based Simultaneous Algebraic Reconstruction Technique and Its Parallel Implementation on GPU 

      Zhang, Shunli; Geng, Guohua; Cao, Guohua; Zhang, Yuhe; Liu, Baodong; Dong, Xu (IEEE, 2018)
      Simultaneous algebraic reconstruction technique (SART) is a well-known iterative method in X-ray computed tomography, which provides better image quality than analytical methods when dealing with incomplete or noisy data. ...
    • Fast-Fourier-Transform Based Numerical Integration Method For The Rayleigh-Sommerfeld Diffraction Formula 

      Shen, F. B.; Wang, Anbo (Optical Society of America, 2006-08-01)
      The numerical calculation of the Rayleigh-Sommerfeld diffraction integral is investigated. The implementation of a fast-Fourier-transform (FFT) based direct integration (FFT-DI) method is presented, and Simpson's rule is ...
    • FAST-INV: A Fast Algorithm for building large inverted files 

      Fox, Edward A.; Lee, Whay C. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1991), TR-91-10
      Inverted files are widely used in building bibliographic and other types of retrieval systems. In order to investigate the utility of advance information retrieval methods for improving access to large online library ...