1.

Record Nr.

UNINA9910716571503321

Autore

Kofskey Milton G.

Titolo

Design and cold-air investigation of a turbine for a small low-cost turbofan engine / / by Milton G. Kofskey and William J. Nusbaum

Pubbl/distr/stampa

Washington, D.C. : , : National Aeronautics and Space Administration, , September 1972

Descrizione fisica

1 online resource (31 pages) : illustrations

Collana

NASA/TN ; ; D-6967

Soggetti

Gas turbines

Axial flow

Airplanes - Turbofan engines

Axial flow compressors

Low temperatures

Gas-turbines - Testing

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"September 1972."

Nota di bibliografia

Includes bibliographical references (page 27).



2.

Record Nr.

UNINA9910299407503321

Autore

Awange Joseph L

Titolo

Mathematical Geosciences : Hybrid Symbolic-Numeric Methods / / by Joseph L. Awange, Béla Paláncz, Robert H. Lewis, Lajos Völgyesi

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2018

ISBN

3-319-67371-8

Edizione

[1st ed. 2018.]

Descrizione fisica

1 online resource (XXVII, 596 p. 460 illus., 440 illus. in color.)

Disciplina

550.151

Soggetti

Geology

Mathematical physics

Environmental sciences

Geographic information systems

Atmospheric science

Mathematical Applications in the Physical Sciences

Math. Appl. in Environmental Science

Geographical Information Systems/Cartography

Atmospheric Sciences

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Solution of algebraic polynomial systems -- Homotopy solution of nonlinear systems -- Over and underdeterminated systems -- Simulated annealing -- Genetic algorithm -- Particle swarm optimization -- Integer programming -- Multiobjective optimization -- Approximation with radial bases functions -- Support vector machines (SVM) -- Symbolic regression -- Quantile regression -- Robust regression -- Stochastic modeling -- Parallel computations.

Sommario/riassunto

This book showcases powerful new hybrid methods that combine numerical and symbolic algorithms. Hybrid algorithm research is currently one of the most promising directions in the context of geosciences mathematics and computer mathematics in general. One important topic addressed here with a broad range of applications is the solution of multivariate polynomial systems by means of resultants and Groebner bases. But that’s barely the beginning, as the authors



proceed to discuss genetic algorithms, integer programming, symbolic regression, parallel computing, and many other topics. The book is strictly goal-oriented, focusing on the solution of fundamental problems in the geosciences, such as positioning and point cloud problems. As such, at no point does it discuss purely theoretical mathematics. "The book delivers hybrid symbolic-numeric solutions, which are a large and growing area at the boundary of mathematics and computer science." Dr. Daniel Li chtbau.