Duffin, Richard James 1909
Overview
Works:  60 works in 99 publications in 2 languages and 964 library holdings 

Genres:  Conference proceedings 
Roles:  Author, Honoree, Dedicatee 
Classifications:  QA265, 512.89 
Publication Timeline
.
Most widely held works by
Richard James Duffin
Geometric programming : theory and application by
Richard James Duffin(
Book
)
28 editions published between 1967 and 1972 in 3 languages and held by 585 WorldCat member libraries worldwide
28 editions published between 1967 and 1972 in 3 languages and held by 585 WorldCat member libraries worldwide
Constructive approaches to mathematical models : proceedings of a conference in honor of R.J. Duffin, Pittsburgh, PA, 1014
July, 1978(
Book
)
8 editions published in 1979 in English and held by 297 WorldCat member libraries worldwide
8 editions published in 1979 in English and held by 297 WorldCat member libraries worldwide
Galvanomagnetic and thermomagnetic phenomena by
Richard James Duffin(
)
4 editions published in 1935 in English and held by 8 WorldCat member libraries worldwide
4 editions published in 1935 in English and held by 8 WorldCat member libraries worldwide
Constructive approaches to mathematical models : proceedings of a conference in honor of R.J. Duffin; Pittsburgh, Pennsylvania,
10 4 July 1978(
Book
)
1 edition published in 1979 in English and held by 7 WorldCat member libraries worldwide
1 edition published in 1979 in English and held by 7 WorldCat member libraries worldwide
Positivity of weak solutions of nonuniformly elliptic equations by
C. V Coffman(
Book
)
2 editions published between 1972 and 1973 in English and held by 2 WorldCat member libraries worldwide
2 editions published between 1972 and 1973 in English and held by 2 WorldCat member libraries worldwide
A stereochemical study of the SE by
Richard James Duffin(
Book
)
1 edition published in 1981 in Undetermined and held by 2 WorldCat member libraries worldwide
1 edition published in 1981 in Undetermined and held by 2 WorldCat member libraries worldwide
The discrete analogue of a class of entire functions by
Richard James Duffin(
Book
)
1 edition published in 1967 in English and held by 2 WorldCat member libraries worldwide
1 edition published in 1967 in English and held by 2 WorldCat member libraries worldwide
Linear inequalities and related systems by
Harold W Kuhn(
Book
)
2 editions published between 1956 and 1971 in English and held by 2 WorldCat member libraries worldwide
2 editions published between 1956 and 1971 in English and held by 2 WorldCat member libraries worldwide
A stereochemical study of the SE/reaction by
Richard James Duffin(
)
1 edition published in 1981 in English and held by 2 WorldCat member libraries worldwide
1 edition published in 1981 in English and held by 2 WorldCat member libraries worldwide
Algorithms for classical stability problems by
Richard James Duffin(
Book
)
1 edition published in 1968 in English and held by 2 WorldCat member libraries worldwide
1 edition published in 1968 in English and held by 2 WorldCat member libraries worldwide
The AEMS Project in Applied Mathematics at CarnegieMellon University(
Book
)
1 edition published in 1971 in English and held by 1 WorldCat member library worldwide
This is a record of a research project in applied mathematics at CarnegieMellon University. The project is called 'Analysis of Electrical and Mechanical Systems' or AEMS for short. The aims of AEMS are threefold: (a) to apply mathematical analysis to treat new problems arising in science and technology; (b) to develop new mathematical concepts and structures using facets of science and technology as models; and (c) to help students start a career in the interesting area of applied mathematics. (Author)
1 edition published in 1971 in English and held by 1 WorldCat member library worldwide
This is a record of a research project in applied mathematics at CarnegieMellon University. The project is called 'Analysis of Electrical and Mechanical Systems' or AEMS for short. The aims of AEMS are threefold: (a) to apply mathematical analysis to treat new problems arising in science and technology; (b) to develop new mathematical concepts and structures using facets of science and technology as models; and (c) to help students start a career in the interesting area of applied mathematics. (Author)
Geometric programs treated with slack variables by
Richard James Duffin(
Book
)
1 edition published in 1970 in English and held by 1 WorldCat member library worldwide
1 edition published in 1970 in English and held by 1 WorldCat member library worldwide
Natural vibrations of cantilevered triangular plates i(
Book
)
1 edition published in 1952 in English and held by 1 WorldCat member library worldwide
In this report the Rayleigh and RayleighRitz methods are applied to the natural vibrations of uniform triangular plates clamped on one edge and free on the other two. Two shapes of plate are investigated: an isosceles plate clamped on the base and a right triangular plate clamped on one leg. Upper bounds are obtained for the fundamental modes and in some cases for the second and third modes as well. The following classes of functions are used to represent the displacement of the plate: (1) Oneparameter polynomials with integral exponents; (2) Twoparameter polynomials with integral exponents; (3) Threeparameter polynomials with integral exponents; (4) Fiveparameter polynomials with integral exponents; and (5) Monomials and binomials with variable exponents. In the absence of an exact solution of the problem the frequencies obtained are compared with experimentally determined frequencies for plates of similar shape. For this purpose a formula is developed which relates the frequencies of plates of similar planform but differing in size, thickness, and materials. The comparison between the analytical and experimental results is summarized in a table. While several of the simpler functions yield a satisfactory approximation to the fundamental frequency, only the fiveparameter function (of the functions thus far examined) gives reasonable accuracy in the second and third modes, and at the same time it offers a good approximation to the fundamental. (Author)
1 edition published in 1952 in English and held by 1 WorldCat member library worldwide
In this report the Rayleigh and RayleighRitz methods are applied to the natural vibrations of uniform triangular plates clamped on one edge and free on the other two. Two shapes of plate are investigated: an isosceles plate clamped on the base and a right triangular plate clamped on one leg. Upper bounds are obtained for the fundamental modes and in some cases for the second and third modes as well. The following classes of functions are used to represent the displacement of the plate: (1) Oneparameter polynomials with integral exponents; (2) Twoparameter polynomials with integral exponents; (3) Threeparameter polynomials with integral exponents; (4) Fiveparameter polynomials with integral exponents; and (5) Monomials and binomials with variable exponents. In the absence of an exact solution of the problem the frequencies obtained are compared with experimentally determined frequencies for plates of similar shape. For this purpose a formula is developed which relates the frequencies of plates of similar planform but differing in size, thickness, and materials. The comparison between the analytical and experimental results is summarized in a table. While several of the simpler functions yield a satisfactory approximation to the fundamental frequency, only the fiveparameter function (of the functions thus far examined) gives reasonable accuracy in the second and third modes, and at the same time it offers a good approximation to the fundamental. (Author)
PSEUDOHAMILTONIAN MECHANICS(
Book
)
1 edition published in 1961 in English and held by 1 WorldCat member library worldwide
Denver Research Inst., Colo. BALLOON FLIGHT OF MARCH 16, 1961, by David G. Murcray, James N. Brooks, and Norman J. Sible. 15 Aug 61, 66p. incl. illus. (Flight data rept. no. 2) (Contract AF 33(616)7633) Unclassified report DESCRIPTORS: (*Upper atmosphere, *Infrared radiation, Measuremnt, Experimental data.) (Balloon gondolas, Balloons, Scientific re search, Instrumentation.) (Radiometers, Infra red spectroscopy, Recording devices, Power supplies, Calibration, Design.) (Liquefied gases, Nitrogen, Lead compounds, Selenides, Infrared detectors.) The results obtained on a balloon flight made with an automatic programmed radiometer system are presented. The radiometer was equipped with a liquid nitrogen cooled PbSe cell as a detectorAND MEASUREMENTS WERE MADE OF THE INFRARED BACKGROUND RADIATION FROM 1.8 TO 5.0 MICRONS. (Author)
1 edition published in 1961 in English and held by 1 WorldCat member library worldwide
Denver Research Inst., Colo. BALLOON FLIGHT OF MARCH 16, 1961, by David G. Murcray, James N. Brooks, and Norman J. Sible. 15 Aug 61, 66p. incl. illus. (Flight data rept. no. 2) (Contract AF 33(616)7633) Unclassified report DESCRIPTORS: (*Upper atmosphere, *Infrared radiation, Measuremnt, Experimental data.) (Balloon gondolas, Balloons, Scientific re search, Instrumentation.) (Radiometers, Infra red spectroscopy, Recording devices, Power supplies, Calibration, Design.) (Liquefied gases, Nitrogen, Lead compounds, Selenides, Infrared detectors.) The results obtained on a balloon flight made with an automatic programmed radiometer system are presented. The radiometer was equipped with a liquid nitrogen cooled PbSe cell as a detectorAND MEASUREMENTS WERE MADE OF THE INFRARED BACKGROUND RADIATION FROM 1.8 TO 5.0 MICRONS. (Author)
Network models by
Richard James Duffin(
Book
)
1 edition published in 1969 in English and held by 1 WorldCat member library worldwide
1 edition published in 1969 in English and held by 1 WorldCat member library worldwide
Duality inequalities of mathematics and science by
Richard James Duffin(
)
in English and held by 1 WorldCat member library worldwide
in English and held by 1 WorldCat member library worldwide
Hybrid addition of matrices : a network theory concept by
Richard James Duffin(
Book
)
1 edition published in 1970 in English and held by 1 WorldCat member library worldwide
1 edition published in 1970 in English and held by 1 WorldCat member library worldwide
Lagrangean Functions and Affine Minorants(
Book
)
1 edition published in 1979 in English and held by 1 WorldCat member library worldwide
1 edition published in 1979 in English and held by 1 WorldCat member library worldwide
The AEMs Project in Applied Mathematics at CarnegieMellon University. Comprehensive Report, Period 19701980(
Book
)
1 edition published in 1980 in English and held by 1 WorldCat member library worldwide
The aims of the Analysis of Electrical and Mechanical Systems Project are threefold: to apply mathematical analysis to new problems arising in science and technology; to develop new mathematical concepts and structures using facets of science and technology as models; and to help students start a career in the interesting area of applied mathematics. Included is a list of papers published since 1970. Abstracts are included
1 edition published in 1980 in English and held by 1 WorldCat member library worldwide
The aims of the Analysis of Electrical and Mechanical Systems Project are threefold: to apply mathematical analysis to new problems arising in science and technology; to develop new mathematical concepts and structures using facets of science and technology as models; and to help students start a career in the interesting area of applied mathematics. Included is a list of papers published since 1970. Abstracts are included
Optimum shape of a cooling fin on a convex cylinder by
Richard James Duffin(
Book
)
1 edition published in 1967 in English and held by 1 WorldCat member library worldwide
1 edition published in 1967 in English and held by 1 WorldCat member library worldwide
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Algorithms Analytic functions Biochemistry Boundary value problems CauchyRiemann equations Difference equations Differential equations Differential equations, Elliptic Electric currentsMathematical models Electric networks Electric network topology Electric resistanceMathematical models Electromagnetism Engineering Engineering design Functions Game theory Geometric programming HeatTransmission Hermitian operators Inequalities (Mathematics) Linear programming Mathematical models Mathematical optimization Matrices Method of steepest descent (Numerical analysis) Ohm's law Polynomials Power series Programming (Mathematics) Stability Thermodynamics Thermomagnetism Transformations (Mathematics)
Alternative Names
Daffin, R.
Duffin, R. J.
Duffin, Richard 19091996
Duffin, Richard J.
Duffin, Richard James 1909
Duffin, Richard James 19091996
Richard Duffin amerikansk matematikar og fysikar
Richard Duffin amerikansk matematiker och fysiker
Richard Duffin amerikansk matematiker og fysiker
Richard Duffin physicien amricain
Richard Duffin USamerikanischer Physiker
Ричард Даффин
ریچارد دوفین فیزیکدان و ریاضیدان آمریکایی
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