1.

Record Nr.

UNINA9910798988003321

Autore

Shanahan Mark

Titolo

Eisenhower at the dawn of the Space Age : sputnik, rockets, and helping hands / / Mark Shanahan

Pubbl/distr/stampa

Lanham, Maryland : , : Lexington Books, , 2017

©2017

ISBN

1-4985-2815-5

Descrizione fisica

1 online resource (225 pages)

Disciplina

629.40973

Soggetti

Astronautics and state - United States - History - 20th century

Space race - United States - History - 20th century

Outer space Exploration Government policy United States History 20th century

United States Relations Soviet Union

Soviet Union Relations United States

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

The policymaking character -- Missile and reconnaissance development under Eisenhower -- The Sputnik season -- From confrontation to legislation -- From strategy to implementation -- Final thoughts : Ike revisited on space.

Sommario/riassunto

"Ahead of the sixtieth anniversary of the dawn of the Space Age, this revisionist study examines the development of space policy during the Eisenhower administration. It challenges traditional scholarly assessments and argues that President Eisenhower's space policies were proactive and activist rather than passive and reactive to Soviet successes"--Provided by publisher.



2.

Record Nr.

UNINA9910746286403321

Autore

Masrour Rachid

Titolo

Electronic, Magnetic, and Thermoelectric Properties of Spinel Ferrite Systems : A Monte Carlo Study, Mean-Field Theory, High-Temperature Series Expansions, and Ab-Initio Calculations / / by Rachid Masrour

Pubbl/distr/stampa

Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023

ISBN

9783031406133

3031406133

Edizione

[1st ed. 2023.]

Descrizione fisica

1 online resource  (xiv, 128 pages) : illustrations

Collana

SpringerBriefs in Materials, , 2192-1105

Disciplina

620.1697

Soggetti

Magnetism

Metals

Materials science - Data processing

Thermoelectric materials

Mathematical physics

Computer simulation

Metals and Alloys

Computational Materials Science

Thermoelectrics

Computational Physics and Simulations

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Exchange interactions types in magnetic materials -- Computational methods: Ab Initio calculations and Monte Carlo simulations -- Thermoelectric and spin-lattice coupling in a MnCr2S4 ferrimagnetic spinel -- Magnetic properties of LiMn1.5Ni0.5O4 spinel: Ab initio calculations and Monte Carlo simulation.

Sommario/riassunto

This book explores magnetic properties and critical temperatures in inverse ferrite Fe₃⁺(M₂⁺Fe₃⁺)O₄ spinels (e.g., Fe, Co, Ni). It calculates transition and Curie Weiss temperatures, providing insights into their thermodynamic behavior. Using the full potential linearized augmented plane wave (FP-LAPW) method, it investigates electrical and magnetic structures of spinel chromite, revealing magnetic moments in MnCr₂S₄.



Seebeck coefficient and electrical conductivity are also calculated. Advanced techniques like Monte Carlo, DFT+U, and FLAPW analyze magnetic characteristics of LiMn₁.₅Ni₀.₅O₄ and electronic/magnetic structures of Fe₃O₄. High-temperature series expansions calculate Néel temperature and critical exponents, while GFT determines thermal magnetization and susceptibility. The analysis exposes exchange interactions' effects on magnetic order and introduces asymmetric phases in ferrimagnetic spinel systems. This book serves as an invaluable resource for researchers, academics, and enthusiasts seeking a comprehensive understanding of magnetic properties and critical phenomena within diverse spinel materials.