Application of a Revised Moliere Theory to the Description of the Landau-Pomeranchuk Effect

Using the Coulomb corrections to some important parameters of a revised Moliere multiple scattering theory, we have obtained analytically and numerically the Coulomb corrections to the quantities of the Migdal theory of the Landau-Pomeranchuk (LPM) effect for sufficiently thick targets. We showed that the Coulomb correction to the spectral bremsstrahlung rate of this theory allows completely eliminating the discrepancy between the theory and experiment at leastfor high Z experimental targets.Comment: PDFLaTeX, 9 pages, 6 Tables, and 1 Figure. V2: Figure 1 is replaced, Tables 3 and 4 are added. arXiv admin note: substantial text overlap with arXiv:1309.794

Capacitor and method of making same Patent

Capacitor fabrication by solidifying mixture of ferromagnetic metal particles, nonferromagnetic particles, and dielectric materia

Early application of solar electric propulsion to a 1-astronomical-unit out-of-the-ecliptic mission

Solar electric propulsion for out-of-ecliptic solar orbit missio

Analysys of magnetic field homogenity at computer tomography

Práce se zabývá nukleární magnetickou rezonancí, jejími zobrazovacími technikami, měřením magnetické indukce a posouzením homogenity magnetického pole pomocí měřící sondy. Je zde uveden základní fyzikální popis chování spinu v magnetickém poli. Dále jsou popsány metody pro měření NMR. Práce je zaměřena na metody spinového a gradientního echa. V experimentální části je popsáno měření homogenity magnetického pole v tomografu a následné zobrazení mapy měřeného pole. Uživatelská aplikace, vytvořená v rámci práce, má za úkol více usnadnit práci se zobrazování magnetických polí.The dissertation deals with nuclear magnetic resonance, its projection technologies, measurement of magnetic induction and evaluation of magnetic field homogenity by the help of measuring probe. Further, the methods of NMR measurements are being described. The dissertation concentrates on methods of spin and gradient echo. The experimental part describes measurement of magnetic field homogenity in tomography and subsequent projection of measured field map. Users application, created in terms of dissertation, has more save labour imagery magnetic fields.

Satellite relocation by tether deployment

Several new uses of satellite tethers are discussed, including: (1) using tether extension to reposition a satellite in orbit without fuel expenditure by extending a mass on the end of a tether; (2) using a tether for energy storage to power the satellite during eclipse; and (3) using a tether for eccentricity pumping to correct perturbations in the orbit and as a means of adding energy to the orbit for boosting and orbital transfer

Design and evaluation of a sensor fail-operational control system for a digitally controlled turbofan engine

A self-learning, sensor fail-operational, control system for the TF30-P-3 afterburning turbofan engine was designed and evaluated. The sensor fail-operational control system includes a digital computer program designed to operate in conjunction with the standard TF30-P-3 bill-of-materials control. Four engine measurements and two compressor face measurements are tested. If any engine measurements are found to have failed, they are replaced by values synthesized from computer-stored information. The control system was evaluated by using a realtime, nonlinear, hybrid computer engine simulation at sea level static condition, at a typical cruise condition, and at several extreme flight conditions. Results indicate that the addition of such a system can improve the reliability of an engine digital control system

Manned Mars landing missions using electric propulsion

Manned Mars landing missions using electric propulsion - evaluation of various mission profile

Die gesellschaftliche Akzeptanz der Energiewende: Befunde eines interdisziplinären Forschungsprojektes

Die gesellschaftliche Zustimmung zu den politischen Zielen der Energiewende wird nicht unwesentlich von ihren finanziellen Verteilungswirkungen und den individuellen Gerechtigkeitsvorstellungen der privaten Haushalte beeinflusst. Die empirische Untersuchung dieses Zusammenhangs bildet den Kern dieses Beitrags, welcher die Ergebnisse des vom Bundesministerium für Bildung und Forschung (BMBF) geförderten Forschungsprojektes AKZEPTANZ zusammenfasst. Die empirischen Einzelbefunde verweisen auf drei wesentliche Erkenntnisse hinsichtlich der Präferenzstruktur der privaten Haushalte bei der Gestaltung der energiewendebedingten Kostenbelastung. Erstens besteht grundsätzlich der Wunsch nach einer Anwendung des Leistungsfähigkeitsprinzips bei der Finanzierung der Ökostromförderung. Zweitens kann die Unsicherheit über die Kosten der Energiewende zu einer Abkehr vom Leistungsfähigkeitsprinzip führen und drittens können Anreize in Form von Subventionen für Investitionen in Energieeffizienz zu kontraproduktiven Nebeneffekten führen

JRSM 1750: Precision Language (Syllabus)

Course Description: Introduction to grammar and writing style for use in journalism and mass communication; foundations of research and information gathering, media literacy, and plagiarism

JRSM 1750: Precision Language (Syllabus)

Course Description: Introduction to grammar and writing style for use in journalism and mass communication; foundations of research and information gathering, media literacy, and plagiarism