O conceito de partícula na teoria quântica de campos na rede Euclidiana PDF Download
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Author: Silvana Perez
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 80
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Book Description
Estudamos, a partir do modelo de teoria livre do campo escalar real, o conceito de partícula por meio das definições na rede Euclidiana dos observáveis número de partículas e energia do sistema. Interpretamos na rede Euclidiana o conceito de modos on-shell no limite do contínuo. Estendemos estas explorações para o modelo polinomial ''lâmbda'' ' POT. 4'.
Author: Silvana Perez
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 80
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Book Description
Estudamos, a partir do modelo de teoria livre do campo escalar real, o conceito de partícula por meio das definições na rede Euclidiana dos observáveis número de partículas e energia do sistema. Interpretamos na rede Euclidiana o conceito de modos on-shell no limite do contínuo. Estendemos estas explorações para o modelo polinomial ''lâmbda'' ' POT. 4'.
Author: Jose Cleriston Campos de Souza
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 49
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Book Description
Neste trabalho apresentamos uma investigação sobre os pontos críticos de transições de fase, segundo um método numérico que se utiliza da implementação do modelo de Ising numa rede euclidiana finita com condições de contorno fixas. É mostrado aqui o método da expansão em cumulantes (ou momentos) do valor esperado do campo em torno do ponto crítico da transição, bem como a busca pelos pontos críticos em redes de vários tamanhos em duas, três e quatro dimensões. Os coeficientes dos cumulantes que são dominantes no limite do contínuo indicariam o valor do expoente crítico da magnetização. Não foi realizada uma análise numérica completa desta última faceta do problema devido às grandes dificuldades numéricas encontradas.
Author: J. C. Oakenfull
Publisher:
ISBN:
Category : Brazil
Languages : en
Pages : 452
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Book Description
Author: Peter Galison
Publisher: University of Chicago Press
ISBN: 9780226279176
Category : History
Languages : en
Pages : 1002
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Book Description
Engages with the impact of modern technology on experimental physicists. This study reveals how the increasing scale and complexity of apparatus has distanced physicists from the very science which drew them into experimenting, and has fragmented microphysics into different technical traditions.
Author: J. Ross Quinlan
Publisher: Morgan Kaufmann
ISBN: 9781558602380
Category : Computers
Languages : en
Pages : 286
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Book Description
This book is a complete guide to the C4.5 system as implemented in C for the UNIX environment. It contains a comprehensive guide to the system's use, the source code (about 8,800 lines), and implementation notes.
Author: Anthony J. G. Hey
Publisher:
ISBN:
Category : Bioinformatics
Languages : en
Pages : 292
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Book Description
Foreword. A transformed scientific method. Earth and environment. Health and wellbeing. Scientific infrastructure. Scholarly communication.
Author: Tony Hey
Publisher: Oficina de Textos
ISBN: 8579750318
Category : Science
Languages : pt
Pages : 257
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Book Description
Publicado em parceria com a Microsoft Research, este livro apresenta pela primeira vez as pesquisas para a formulação do chamado Quarto Paradigma - uma nova metodologia de desenvolver ciência, baseada no uso intensivo de dados e na utilização de computação avançada para interpretar essas informações e criar novo conhecimento. Ao avaliar os novos campos de colaboração entre tecnologia e ciência, esta obra procura apontar tendências, além de inspirar uma nova geração de cientistas.
Author: Eugene Gardner
Publisher:
ISBN:
Category : Cyclotrons
Languages : en
Pages : 14
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Book Description
Author: J. D. Rhoades
Publisher: Food & Agriculture Org.
ISBN: 9789251042816
Category : Technology & Engineering
Languages : en
Pages : 172
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Book Description
Determination of soil salinity from aqueous electrical conductivity; determination of soil salinity from soil-paste and bulk soil electrical conductivity; example uses of salinity assessment technology; operational and equipment costs associated with salinity instrumentation measurement techniques.
Author: Turab Lookman
Publisher: Springer
ISBN: 3319994654
Category : Science
Languages : en
Pages : 266
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Book Description
This book addresses the current status, challenges and future directions of data-driven materials discovery and design. It presents the analysis and learning from data as a key theme in many science and cyber related applications. The challenging open questions as well as future directions in the application of data science to materials problems are sketched. Computational and experimental facilities today generate vast amounts of data at an unprecedented rate. The book gives guidance to discover new knowledge that enables materials innovation to address grand challenges in energy, environment and security, the clearer link needed between the data from these facilities and the theory and underlying science. The role of inference and optimization methods in distilling the data and constraining predictions using insights and results from theory is key to achieving the desired goals of real time analysis and feedback. Thus, the importance of this book lies in emphasizing that the full value of knowledge driven discovery using data can only be realized by integrating statistical and information sciences with materials science, which is increasingly dependent on high throughput and large scale computational and experimental data gathering efforts. This is especially the case as we enter a new era of big data in materials science with the planning of future experimental facilities such as the Linac Coherent Light Source at Stanford (LCLS-II), the European X-ray Free Electron Laser (EXFEL) and MaRIE (Matter Radiation in Extremes), the signature concept facility from Los Alamos National Laboratory. These facilities are expected to generate hundreds of terabytes to several petabytes of in situ spatially and temporally resolved data per sample. The questions that then arise include how we can learn from the data to accelerate the processing and analysis of reconstructed microstructure, rapidly map spatially resolved properties from high throughput data, devise diagnostics for pattern detection, and guide experiments towards desired targeted properties. The authors are an interdisciplinary group of leading experts who bring the excitement of the nascent and rapidly emerging field of materials informatics to the reader.
