Accedi

Bibliografie tematiche / Fundamental constants / Tesi

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Fundamental constants.

Tesi sul tema "Fundamental constants"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-29 saggi (tesi di laurea o di dottorato) per l'attività di ricerca sul tema "Fundamental constants".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi le tesi di molte aree scientifiche e compila una bibliografia corretta.

1

Sandvik, Havard Bunes. "Varying fundamental constants in cosmology." Thesis, Imperial College London, 2002. http://hdl.handle.net/10044/1/11460.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

DiFilippo, Frank. "Precise atomic masses for determining fundamental constants." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/26860.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Thompson, Rodger. "The Relation between Fundamental Constants and Particle Physics Parameters." MDPI AG, 2017. http://hdl.handle.net/10150/624359.

Testo completo

Abstract (sommario):

The observed constraints on the variability of the proton to electron mass ratio and the fine structure constant are used to establish constraints on the variability of the Quantum Chromodynamic Scale and a combination of the Higgs Vacuum Expectation Value and the Yukawa couplings. Further model dependent assumptions provide constraints on the Higgs VEV and the Yukawa couplings separately. A primary conclusion is that limits on the variability of dimensionless fundamental constants such as and provide important constraints on the parameter space of new physics and cosmologies.

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Murphy, Michael T. Physics Faculty of Science UNSW. "Probing variations in the fundamental constants with quasar absorption lines." Awarded by:University of New South Wales. School of Physics, 2002. http://handle.unsw.edu.au/1959.4/19062.

Testo completo

Abstract (sommario):

Precision cosmology challenges many aspects of fundamental physics. In particular, quasar absorption lines test the assumed constancy of fundamental constants over cosmological time-scales and distances. Until recently, the most reliable technique was the alkali doublet (AD) method where the measured doublet separation probes variations in the fine-structure constant, ???? e2/??c. However, the recently introduced many-multiplet (MM) method provides several advantages, including a demonstrated ???10-fold precision gain. This thesis presents detailed MM analyses of 3 independent Keck/HIRES sampl

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Davis, Tamara Maree Physics Faculty of Science UNSW. "Fundamental aspects of the expansion of the universe and cosmic horizons." Awarded by:University of New South Wales. Physics, 2004. http://handle.unsw.edu.au/1959.4/20640.

Testo completo

Abstract (sommario):

We use standard general relativity to clarify common misconceptions about fundamental aspects of the expansion of the Universe. In the context of the new standard Lambda-CDM cosmology we resolve conflicts in the literature regarding cosmic horizons and the Hubble sphere (distance at which recession velocity equals c) and we link these concepts to observational tests. We derive the dynamics of a non-comoving galaxy and generalize previous analyses to arbitrary FRW universes. We also derive the counter-intuitive result that objects at constant proper distance have a non-zero redshift. Receding g

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Alanko, S. (Seppo). "High resolution infrared spectroscopy on the fundamental bands of ¹³CH₃I." Doctoral thesis, University of Oulu, 1999. http://urn.fi/urn:isbn:9514251857.

Testo completo

Abstract (sommario):

Abstract This thesis deals with the rotation-vibration theory and high resolution infrared spectroscopy of semirigid C3 molecules. Semirigid molecules form a class of molecules which are strongly bound with one well defined structure, and without low frequency internal motions. The theory, as well as the experimental studies of semirigid molecules are of special importance in the field of rotation-vibration spectroscopy. They provide a good starting point for interpreting and analyzing the spectra of practically all types of molecules. In this work, the theory is reviewed fromthe standpoint o

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Svanedal, Ida. "Fundamental Characterization and Technical Aspects of a Chelating Surfactant." Doctoral thesis, Mittuniversitetet, Avdelningen för kemiteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-21405.

Testo completo

Abstract (sommario):

The purpose of this study was to investigate the fundamental characteristics of a chelating surfactant in terms of solution behaviour, chelation of divalent metal ions, and interaction in mixtures with different foaming agents and divalent metal ion, as well as examining its prospects in some practical applications. Chelating surfactants are functional molecules, with both surface active and chelating properties, which are water soluble and therefore suitable for chelation in many aqueous environments. The dual functionality offers the possibility to recover the chelating surfactant as well as

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Prause, Nils [Verfasser], and Dieter [Akademischer Betreuer] Reimers. "The influence of asymmetric line profiles on the reliability of the search for varying fundamental constants / Nils Prause. Betreuer: Dieter Reimers." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2014. http://d-nb.info/1059237946/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Windberger, Robert-Alexander [Verfasser], and López-Urrutia José Ramón [Akademischer Betreuer] Crespo. "Identification of optical transitions in complex highly charged ions for applications in metrology and tests of fundamental constants / Robert-Alexander Windberger ; Betreuer: José Ramón Crespo López-Urrutia." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180396839/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Windberger, Alexander [Verfasser], and López-Urrutia José Ramón [Akademischer Betreuer] Crespo. "Identification of optical transitions in complex highly charged ions for applications in metrology and tests of fundamental constants / Robert-Alexander Windberger ; Betreuer: José Ramón Crespo López-Urrutia." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:16-heidok-188685.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Sobreira, Daniel Pinheiro. "O Teorema de Malgrange-Ehrenpreis." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6634.

Testo completo

Abstract (sommario):

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>No primeiro capÃtulo da dissertaÃÃo, Ã apresentada uma breve introduÃÃo do trabalho. Em seguida, no segundo capÃtulo, sÃo demonstradas noÃÃes e propriedades de espaÃos vetoriais topolÃgicos. Dando seguimento ao presente estudo, no terceiro capÃtulo, efetua-se a abordagem da teoria das distribuiÃÃes, onde se proporciona, como exemplo a distribuiÃÃo delta de Dirac, na qual, por conseguinte, sÃo definidas ainda operaÃÃes com distribuiÃÃes, entre elas a convoluÃÃo de uma distribuiÃÃo com uma funÃÃo teste, e por fim, ainda no mesmo capi

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Davis, Adam N. "Astrophysical Constraints on Fundamental Parameters in Physics and Astronomy." Case Western Reserve University School of Graduate Studies / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=case1098973318.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Nunes, Luciele Rodrigues. "SOLUÇÕES FUNDAMENTAIS DE OPERADORES LINEARES DE COEFICIENTES CONSTANTES." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/9977.

Testo completo

Abstract (sommario):

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In this thesis we present a proof of the Malgrange-Ehrenpreis theorem, which states that every operator with constant coefficients non identically zero has a fundamental solution.<br>Nessa dissertação apresentamos uma demonstração do Teorema de Malgrange-Ehrenpreis, que afirma que todo operador de coeficientes constantes não identicamente nulo tem uma solução fundamental.

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Thompson, Rodger I. "Fundamental constant observational bounds on the variability of the QCD scale." OXFORD UNIV PRESS, 2017. http://hdl.handle.net/10150/623802.

Testo completo

Abstract (sommario):

Many physical theories beyond the Standard Model predict time variations of basic physics parameters. Direct measurement of the time variations of these parameters is very difficult or impossible to achieve. By contrast, measurements of fundamental constants are relatively easy to achieve, both in the laboratory and by astronomical spectra of atoms and molecules in the early universe. In this work, measurements of the proton to electron mass ratio mu and the fine structure constant alpha are combined to place mildly model-dependent limits on the fractional variation of the quantum chromodynami

Gli stili APA, Harvard, Vancouver, ISO e altri

15

HIEDA, Lidiane Mayumi. "Superfícies mínimas com curvatura constante nas formas espaciais 4-dimensionais." Universidade Federal de Goiás, 2011. http://repositorio.bc.ufg.br/tede/handle/tde/1941.

Testo completo

Abstract (sommario):

Made available in DSpace on 2014-07-29T16:02:18Z (GMT). No. of bitstreams: 1 Dissertacao Lidiane Mayumi Hieda.pdf: 465165 bytes, checksum: a5ce3ff47770899f6a4edcca3e40ed69 (MD5) Previous issue date: 2011-05-13<br>This work was based on papers On Compact Minimal Surfaces with non-negative Gaussian Curvature in a Space of Constant Curvature: I and Minimal Surfaces with Constant Curvature in 4-dimensional Space Forms, by Katsuei Kenmotsu, consisting in the classification of minimal surfaces with constant Gaussian curvature K in a 4-dimensional space form without any global assumption. We will s

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Filho, Zwinglio de Oliveira Guimarães. "Energias de raios gama padrões: suas covariâncias e relações com as constantes fundamentais." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02072012-153200/.

Testo completo

Abstract (sommario):

Este trabalho apresenta o procedimento que desenvolvemos e empregamos para determinar os valores a serem adotados para as energias de um conjunto de raios gama comumente utilizados como padrões de calibração, bem como sua respectiva matriz de covariância, esta obtida pela primeira vez. A matriz de covariância entre as energias destes padrões revelou muitos casos de correlações com valores absolutos maiores que 0,8, correlações estas que precisam ser corretamente consideradas para não comprometer a qualidade das análises efetuadas com o uso daquelas energias. No procedimento desenvolvido foi co

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Machado, Daniel Francisco Scalabrini. "Cálculo das constantes espectroscópicas e energias rovibracionais da molécula de Cl2 em seus estados eletrônicos fundamental e excitados." reponame:Repositório Institucional da UnB, 2013. http://repositorio.unb.br/handle/10482/13832.

Testo completo

Abstract (sommario):

Dissertação (mestrado)—Universidade de Brasília, Instituto de Química, Programa de Pós-Graduação em Química, 2013.<br>Submitted by Albânia Cézar de Melo (albania@bce.unb.br) on 2013-08-02T13:30:30Z No. of bitstreams: 1 2013_DanielFranciscoScalabriniMachado.pdf: 5725103 bytes, checksum: 8f6bf029a5f00c5912c1e6d191541f74 (MD5)<br>Approved for entry into archive by Guimaraes Jacqueline(jacqueline.guimaraes@bce.unb.br) on 2013-08-02T15:37:46Z (GMT) No. of bitstreams: 1 2013_DanielFranciscoScalabriniMachado.pdf: 5725103 bytes, checksum: 8f6bf029a5f00c5912c1e6d191541f74 (MD5)<br>Made available in

Gli stili APA, Harvard, Vancouver, ISO e altri

18

Nakamura, K., K. Kato, H. Koide, Y. Hatta, and H. Okubo. "Fundamental Property of Electric Field in Rapeseed Ester Oil based on Kerr Electro-Optic Measurement." IEEE, 2006. http://hdl.handle.net/2237/9624.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Huber, Dieter. "Aspects of the communicative function of voice in text intonation : constancy and variability in Swedish fundamental frequency contours /." Göteborg : Univ, 1988. http://catalogue.bnf.fr/ark:/12148/cb39073781j.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Horta, Patricia Rossi Torralba. "Identidades em jogo: duplo mal-estar das professoras e das coordenadoras pedagógicas do Ensino Fundamental I na constante construção de seus papéis." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/48/48134/tde-25062007-120102/.

Testo completo

Abstract (sommario):

O objetivo do presente estudo, de cunho teórico-analítico, configura-se como uma tentativa de compreensão da forma pela qual se estabeleceram, no Brasil, as identidades profissionais das professoras de primeiras letras e das coordenadoras pedagógicas, mutuamente referidas, e o mal-estar decorrente das modalidades pelas quais se instituíram, com as reformas educacionais, suas competências desejáveis mediante diferentes descrições das respectivas funções. Na busca de entender teoricamente como se produzem essas identidades nas estruturas hierárquicas das instituições escolares, os aportes teóric

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Liu, Jie. "Géométrie des variétés de Fano : sous-faisceaux du fibré tangent et diviseur fondamental." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4038/document.

Testo completo

Abstract (sommario):

Cette thèse est consacrée à l'étude de la géométrie des variétés de Fano complexes en utilisant les propriétés des sous-faisceaux du fibré tangent et la géométrie du diviseur fondamental. Les résultats principaux compris dans ce texte sont : (i) Une généralisation de la conjecture de Hartshorne: une variété lisse projective est isomorphe à un espace projectif si et seulement si son fibré tangent contient un sous-faisceau ample.(ii) Stabilité du fibré tangent des variétés de Fano lisses de nombre de Picard un : à l'aide de théorèmes d'annulation sur les espaces hermitiens symétriques irréductib

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Karcher, Romain. "Implémentation d'une source d'atomes ultra-froids pour l'amélioration de l'exactitude d'un gravimètre atomique Improving the accuracy of atom interferometers with ultracold sources A determination of the Planck constant using the LNE Kibble balance in air." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS165.

Testo completo

Abstract (sommario):

Cette thèse a pour objectif l’amélioration de l’exactitude du gravimètre atomique du LNE-SYRTE. Ce gravimètre utilise des techniques d’interférométrie atomique pour déterminer l’accélération de la pesanteur g subie par des atomes de Rubidium 87 en chute libre. Il constitue la référence métrologique nationale pour la mesure de g et ses biais doivent donc être évalués avec la meilleure incertitude.Au début de cette thèse, le budget d’incertitude total était de 4.3µGal,dominé par l’incertitude de 4.0µGal associée au biais lié aux aberrations du front d’onde des lasers Raman utilisés pour réaliser

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Vestin, Albin, and Gustav Strandberg. "Evaluation of Target Tracking Using Multiple Sensors and Non-Causal Algorithms." Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-160020.

Testo completo

Abstract (sommario):

Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. Validation of the tracking performance is often done in staged traffic scenarios, where additional sensors, mounted on the vehicles, are used to obtain their true positions and velocities. The difficulty of evaluating the tracking performance complicates its development. An alternative approach studied in this thesis, is to record sequences and use non-causal algorithms, such as smoothing, i

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Angstmann, Elizabeth Physics Faculty of Science UNSW. "Effects of the variation of fundamental constants in atoms." 2007. http://handle.unsw.edu.au/1959.4/40529.

Testo completo

Abstract (sommario):

Interest in the variation of fundamental constants has recently been stimulated by claims that the fine structure constant, α, was smaller in the past. Physicists are investigating whether α is currently varying using a number of methods including atomic clock experiments and quasar absorption spectra. To date atomic clock experiments have not reached the same level of precision as the quasar results but the precision to which transition frequencies are being measured is increasing dramatically and very soon atomic clock experiments based on Earth will be able to rival or surpass the quasar re

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Fradette, Anthony. "Constraining the variation of fundamental constants with tritium decays." Thesis, 2012. http://hdl.handle.net/1828/4373.

Testo completo

Abstract (sommario):

The consistency of fundamental constants is assumed in the Standard Model. However, new physics theories allow them to be dynamical. Different tests can be made at various epochs of the universe. In particular, current bounds at the time of emission of the Cosmic Microwave Background (CMB) permit variations up to 1% of their present values. A change of this order can produce an accumulation of tritium which would later decay and modify the ionization history of the Universe by up to O(0.1%). This Tritium Decay Scenario (TDS) can modify the CMB to an observable level and thus provides a new pr

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Murphy, Michael T. "Probing variations in the fundamental constants with quasar absorption lines /." 2002. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20030919.083142/index.html.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Stern, Steffen [Verfasser]. "Dynamical dark energy and variation of fundamental "constants" / put forward by Steffen Stern." 2008. http://d-nb.info/991641590/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Negrelli, Carolina Soledad. "Variación espacial de las constantes fundamentales: comparación entre los modelos fenomenológicos y distancias luminosas de supernovas tipo Ia." Tesis, 2015. http://hdl.handle.net/10915/45920.

Testo completo

Abstract (sommario):

El Modelo Estándar y la Relatividad General son las teorías que explican, con gran éxito, los fenómenos físicos a bajas energías. Las ecuaciones de dichas teorías involucran ciertos parámetros que tienen la particularidad de permanecer invariantes en el espacio-tiempo. Son las llamadas constantes fundamentales. Desde la hipótesis de Dirac en 1937, según la cual, las constantes fundamentales son simples funciones de la edad del Universo; la variación temporal y espacial de dichas constantes ha sido objeto de numerosos trabajos de investigación. El interés teórico en este tema proviene del hecho

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Portela, Matias Miguel José. "As Oscilações nos Preços dos Combustíveis e a Gestão das Empresas de Transportes." Master's thesis, 2018. http://hdl.handle.net/10400.26/27977.

Testo completo

Abstract (sommario):

O setor dos transportes representa uma forma de ligação entre estados. Este satisfaz as necessidades globais ao permitir a movimentação de pessoas e bens. Sendo essencial para o desenvolvimento económico, encontra-se muitas vezes associado ao comércio mundial, representando uma ferramenta essencial e estratégica para a evolução das nações. Contudo, os custos de transporte são variáveis com poder influenciador sobre valor das mercadorias transacionadas. Sendo este um risco constante, torna-se importante gerir corretamente a sua variação e saber agir com base nos acontecimentos. Focando a varia

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!