Now showing items 1-20 of 1300

  • Analytical and experimental thermal analysis of multiple heat sources in integrated semiconductor chips 

    Lindsted, R. D.; DiCicco, D. A. (IEEE, 1972-05)
    Because of the complexity and interconnection density of today's integrated circuit chips, experimental measurement of individual transistor or diode junction temperatures under typical powered conditions has become ...
  • On Schwarz canonical form for large system simplification 

    Lal, M.; Mitra, R.; Jain, A. (IEEE, 1975-04-01)
    Recently a new technique for the reduction of a large-order dynamical system, using Schwarz canonical form, has been proposed [1]. It is presently shown that the above is essentially a frequency domain technique for which ...
  • Identification of nonlinear systems in frequency domain 

    Shanmugam, K. Sam; Jong, Mark T. (IEEE, 1975-11-01)
    A frequency domain technique for identifying a class of nonlinear systems is presented. The class of nonlinear systems we consider in this paper consists of a power series nonlinearity sandwiched between two linear systems ...
  • Experimental results of the remote sensing of sea-surface salinity at 21-cm wavelength 

    Thomann, Gary C. (IEEE, 1976-07-01)
    The complex dielectric constant of sea water is a function of salinity at 21-cm wavelength, and sea-water salinity can be determined by a measurement of radiometric temperature at 21 cm along with a measurement of thermodynamic ...
  • Authors' reply 

    Lal, M.; Mitra, R. (IEEE, 1976-08-01)
  • Custom programming/analysis in the small business environment 

    Cary, T. (IEEE, 1976-09)
    As has often been stated, a business of any size can be considered as a general system,8,11,13,28,29,20,31with identifiable external inputs and outputs typically consisting of goods, services, energy, money, and information. ...
  • An experimental validation of mathematical simulation of human thermoregulation 

    Konz, S.; Hwang, C.L.; Dhiman, J.; Masud, Abu S.M. (Elsevier, 1977)
    An experimental validation of Stolwijk's mathematical model of thermoregulation is presented. Although the model seems to be accepted widely, very little experimental data for validation exists in the open literature. ...
  • WER-1: Two dimensional tests of GA(W)-1 and GA(W)-2 airfoils at angles- of-attack from 0 to 360 degrees 

    Satran, Dale R.; Snyder, Melvin H. (Wichita State University.Wind Energy Laboratory, 1977-01)
    Tests of the GA(W) - l and GA(W)-2 airfoils were conducted in the 2- D test section of the Wichita State University 7' x 10' low speed wind tunnel to determine the lift , drag, and pitching moment coefficients of the ...
  • WER-2: Wichita, Kansas wind characteristics estimated from 1968-1973 NWS data : performance of the NASA 100 kw prototype wind generator in the Wichita wind regime 

    Thomann, Gary C.; Jong, Mark T. (Wichita State University. Center for Energy Studies, 1977-02)
    At the present time there ex ists a capabi lity to manufacture wind turbines for generati ng el ectric power to be fed into the utility grid. These turbines would not be l arge by conventi onal power plant standards; individual ...
  • An algorithm for the two dimensional FFT 

    Hoyer, E.A.; Berry, W. (IEEE, 1977-05-01)
    Conventional two dimensional fast Fourier transforms become very slow if the size of the matrix becomes too large to be contained in memory. This is due to the transposition of the matrix that is required. This new algorithm ...
  • The zoom FFT using complex modulation 

    Hoyer, E.A.; Stork, R. (IEEE, 1977-05-01)
    A recent paper by Yip discussed the zoom transform as derived from the defining equation of the FFT. This paper simplifies the concepts and removes some of the restrictions assumed by Yip; ie., the total number of points ...
  • WER-4: Wind characteristics for the western part of Kansas 

    Jong, Mark T.; Thomann, Gary C. (Wichita State University. Wind Energy Laboratory, 1978-02)
    The Kansas stations show power densities of from 175 to 200 W/m2 at a height of 25 ft. Using the 3/7 power law, a 200 W/m2 power density would increase to 360 W/m2 at a height of 100 ft and to 490 W/mZ at 200 ft. There ...
  • On combinational networks with restricted fan-out 

    Kodandapani, K.L.; Seth, S.C. (IEEE, 1978-04)
    Fan-out-free networks of AND, OR, NOT, EXOR, and MAJORITY gates are considered. Boolean functions for which such networks exist are defined to be fan-out free. The paper solves the following problems regarding the fan-out-free ...
  • Two-dimensional zoom FFT 

    Stork, R.; Hoyer, E.A. (IEEE, 1978-04-01)
    The concept of the zoom FFT (a more efficient algorithm which allows zooming in on a narrow segment of the spectrum while preserving its frequency content) is extended to the two-dimensional case. The technique is further ...
  • WER-5: Wind power estimation in the Great Plains 

    Thomann, Gary C.; Jong, Mark T. (Wichita State University. Wind Energy Laboratory, 1978-11)
    Some aspects of wind power estimation are examined. Confidence intervals for wind power density are calculated from existing National Weather Service wind data for the Great Plains area. Correlation of yearly mean wind ...
  • A cellular array for multivalued logic functions 

    Kodandapani, K.L.; Setlur, R.V. (IEEE, 1978-11)
    An algebraic generalization of the well-known binary q-function array to a multivalued q-function array is presented. It is possible to associate tree-structure realizations for binary q-functions and multivalued q-functions. ...
  • An optimal frequency domain filter for edge detection in digital pictures 

    Shanmugam, K. Sam; Dickey, Fred M.; Green, James A. (IEEE, 1979-01-01)
    Edge detection and enhancement are widely used in image processing applications. In this paper we consider the problem of optimizing spatial frequency domain filters for detecting edges in digital pictures. The filter is ...
  • WER-6: Comparison of performance of Darrieus wind turbines having 12% and 21% thick sections 

    Snyder, Melvin H.; Furukawa, Naoki (Wichita State University. Center for Energy Studies, 1979-05)
    A series of wind tunnel tests of a one-meter Darrieus wind turbine has been conducted to determine some effects of blade section on turbine performance. The tests confirm Fukuda's prediction that increasing section c'max ...
  • WER-7: The use of water source heat pumps in south central Kansas 

    Fulton, Jay A.; Thomann, Gary C. (Wichita State University. Center for Energy Studies, 1979-08)
    A water source heat pump (WSHP) operates similarly to a conventional air-to-air heat pump except that instead of using the air as a heat source or sink, a water reservoir, such as ground water, is used. The conventional ...
  • WER-10: Feasibility study of aileron and spoiler control systems for large horizontal axis wind turbines 

    Wentz, W.H.; Snyder, Melvin H.; Calhoun, J.T. (Wichita State University. Center for Energy Studies, 1979-11)
    Studies have been conducted to determine the feasibility of using aileron or spoi ler controls as alternates to pitch control for large horizontal axis wind turbines. The NASA MDO-O machine was used as the basis for this ...