4,772 Result(s)
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Engineering
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Article
Stresses in a long hollow cylinder subjected to a band of uniform pressure on the outer surface
Die Arbeit gibt eine Fourier-Integral-Lösung für den Spannungsverlauf in einem Hohlzylinder, der einer axialsymmetrischen Radiallast längs eines Bandes an der Aussenfläche unterworfen wird. Es wird für dünne W...
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Article
The stability of flow between concentric cylindrical surfaces with a circular magnetic field
Das Stabilitätsproblem für Taylorströmungen und Deanströmungen mit kreisförmigem magnetischem Feld wird formuliert. Bekannte Ergebnisse werden kurz zusammengefasst und beschrieben. Neue Ergebnisse betreffend d...
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Article
The limit load of a C-shaped specimen
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Article
Void nucleation effects on shear localization in porous plastic solids
The influence of void nucleation occurring during the deformation history on shear localization is investigated by employing a constitutive model of a rate independent porous plastic solid. Both plastic strain...
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Article
Localization of deformation in rate sensitive porous plastic solids
The effect of material rate sensitivity on the localization of deformation in a porous visco-plastic solid is examined under plane strain tension and axisymmetric tension conditions. The plastic flow rule prop...
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Article
Laser-Raman remote temperature sensing in liquids
A feasibility study has been conducted on the use of laser-Raman spectroscopy as a remote temperature sensing technique for liquids. Empirical relations between the temperature and parameters describing Raman ...
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Article
A method of processing digital character noise
Based on the recognition requirement to suppress types of noise created in the conversion process of handwritten characters into binary patterns in our optical character recognition, an algorithm of processing...
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Article
An accurate solution of characteristic impedance of the elliptic strip-line
An accurate solution of characteristic impedance of the elliptic strip-line with conformal transformation is developed. Some data are given, which are useful for designing elliptic strip-lines.
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Article
Computation of Dyadic Green’s functions for generalized cylinders in free space
Dyadic Green’s functions are powerful and efficient for solving the boundary problems in electromagnetic theory. The key problem involved is how to deal with the additional term in the electric dyadic Green’s ...
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Chapter and Conference Paper
A logarithmic boolean time algorithm for parallel polynomial division
A new algorithm is presented to improve by a factor of log m the estimates for both parallel and sequential time complexity of division with a remainder of two integer polynomials. Under the parallel model, th...
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Chapter
AC Losses for in Situ Superconducting Microcomposites
Metallurgical linking of the filaments and their proximity coupling through the normal metal matrix in in situ prepared superconducting composites cause greater ac losses than those observed for bronze process...
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Chapter
A New Type of Three-Component Dynamometer with High Stiffness and High Natural Frequency
In order to research machine-tool dynamics and dynamic cutting force more thoroughly, three-component dynamometer with higher natural frequency and higher static stiffness is needed. A new type of the dynamome...
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Chapter
An Acoustic Emission Chip-Form Monitor for Single-Point Turning
An acoustic-emission-based microcomputer chip-form monitor has been designed and built at the National Bureau of Standards (NBS). The monitor implements algorithms based on research by the University of Califo...
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Chapter
Flux Flow Dynamics in Superconducting Films
Current-voltage characteristics (CVC) and their first-order derivatives have been measured for niobium and Pb-22% Bi alloy films in magnetic fields in the temperature range 0.2 to 0.5 Tc. CVC derivatives were fou...
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Chapter
Development of A15 Conductors in the USSR
Results of the development of multifilamentary and microcomposite superconducting materials for a large-scale manufacturing of A15 conductors at the “Horizon” plant of the Ministry of Energy of the USSR are pr...
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Chapter and Conference Paper
Fast and efficient parallel linear programming and linear least squares computations
We present a new parallel algorithm for computing a least squares solution to a sparse overdetermined system of linear equations Ax=b such that m×n matrix A is sparse and the graph, G=(V,E), of the matrix ...
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Article
An efficient DC fault simulation algorithm for nonlinear circuits
An efficient DC fault simulation algorithm for nonlinear circuits is proposed in which Householder’s transform and the method of partitioned matrices are used to minimize the number of operations for fault sim...
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Article
A critical study of DGF at the source region in circular waveguides (I)
In this paper, a systematic and novel approach is developed for the dyadic operation of the dyadic Green’s functions (DGF). The complete forms of the dyadic operation of DGF for circular waveguides are given. ...
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Article
A critical study on DGF at the source region in circular waveguides (II)
This is the second part of our work on the dyadic Green’s functions (DGF) at the source region in circular waveguides. With the application of the main results of the first part, a systematic investigation on ...
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Article
Photothermal radiometric detection and imaging of surface cracks
This paper discusses surface crack detection by photothermal radiometric imaging (PRI). In PRI, also called dynamic infrared scanning, a surface is scanned with a spot of heat. Imperfections are detected by ra...
