1.

Record Nr.

UNINA9910464954203321

Titolo

Mechanics and physics of creep, shrinkage, and durability of concrete : a tribute to Zdeněk P. Bažant : proceedings of the Ninth International Conference on Creep, Shrinkage, and Durability Mechanics (CONCREEP-9), September 22-25, 2013 Cambridge, Massachusetts / / sponsored by IA-CONCREEP, Engineering Mechanics Institute of ASCE, American Concrete Institute, Concrete Sustainability Hub at MIT, Groupement de recherche international "multi-scale materials, under the nanoscope" of CNRS ; edited by Franz-Josef Ulm, Hamlin M. Jennings, Roland Pellenq

Pubbl/distr/stampa

Reston, Virginia : , : American Society of Civil Engineers, , [2013]

©2013

ISBN

0-7844-7796-5

Descrizione fisica

1 online resource (515 p.)

Altri autori (Persone)

BažantZ. P

UlmF.-J (Franz-Josef)

JenningsHamlin

PellenqRoland

Disciplina

624.1/834

Soggetti

Concrete - Creep

Concrete - Expansion and contraction

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

""Contents""; ""Keynote Lectures""; ""Progress in Creep and Shrinkage Prediction Engendered by Alarming Bridge Observations and Expansion of Laboratory Database""; ""Structure and Small Angle Scattering of Polydisperse Granular Porous Materials: A Fingerprint for Cement Paste""; ""Nanoscale Numerical Study of C-S-H Precipitation and Gelation""; ""The Counteracting Effects of Capillary Porosity and of Unhydrated Clinker Grains on the Macroscopic Strength of Hydrating Cement Paste: A Multiscale Model""

""Creep Properties of Cementitious Materials from Indentation Testing: Significance, Influence of Relative Humidity, and Analogy Between C-S-H and Soils""""A Depinning Model for Creep and Plasticity of Disordered



Materials""; ""Molecular and Meso-Scale Simulations and Characterization""; ""NANO-CREEP of Synthetic CSH Produced using 1.5 and 0.7 CAO/SIO2 Mixture Ratios""; ""Applying Tools from Glass Science to Study Calcium-Silicate- Hydrates""; ""Mechanical Behaviour of Ordered and Disordered Calcium Silicate Hydrates under Shear Strain Studied by Atomic Scale Simulations""

""Hydrothermal and Mechanical Stability of Metal-Organic Frameworks""""NMR Investigations of Water Retention Mechanism by Cellulose Ethers in Cement-Based Materials""; ""Water Sorption Hysteresis in Cement Nano Slits""; ""Interpretation of Full Sorption-Desorption Isotherms as a Tool for Understanding Concrete Pore Structure""; ""Multi-scale Hydric Transport in Hardened Cement Pastes and Reference Porous Silicate Materials""; ""Water Isotherms, Shrinkage and Creep of Cement Paste: Hypotheses, Models and Experiments""

""Diffusion Properties of Sodium and Lithium Silicates through Cement Pastes and its Mitigating Effect on Alkali-silica Reaction""""New Experimental Approach to Study Creep and Shrinkage Mechanisms of Concrete on the Nano-scale Level""; ""Infinitesimal Shrinkage as Determined by Inverse Analysis Based on Drying and Shrinkage Tests""; ""Kinetic Simulation of the Logarithmic Creep of Cement""; ""Recent Developments in Durability Mesomechanics of Concrete, Including Cracking via Interface Elements""

""Finite Element Based Characterization of the Creep Properties of the Cement Paste Phases by Coupling Nanoindentation Technique and SEM-EDS""""In-situ Chemo-Mechanical Characterization of Cementitious Microstructures with Coupled X-Ray Microanalysis and Indentation Technique""; ""Micromechanics of Creep and Shrinkage""; ""Efficient Homogenization of Ageing Creep of Random Media: Application to Solidifying Cementitious Materials""; ""Multi-scales Characterization of the Early-age Creep of Concrete""; ""Coupled Damage and Multiscale Creep Model Applied to Cementitious Materials""

""Micromechanical Model of Concrete Creep""



2.

Record Nr.

UNINA9910300424503321

Autore

Bechstedt Friedhelm

Titolo

Many-Body Approach to Electronic Excitations : Concepts and Applications / / by Friedhelm Bechstedt

Pubbl/distr/stampa

Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 2015

ISBN

3-662-44593-X

Edizione

[1st ed. 2015.]

Descrizione fisica

1 online resource (596 p.)

Collana

Springer Series in Solid-State Sciences, , 0171-1873 ; ; 181

Disciplina

530

530.1

530.41

535.2

Soggetti

Spectrum analysis

Microscopy

Solid state physics

Optics

Electrodynamics

Microwaves

Optical engineering

Physics

Spectroscopy and Microscopy

Solid State Physics

Classical Electrodynamics

Microwaves, RF and Optical Engineering

Numerical and Computational Physics, Simulation

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Part I Electron-electron interaction -- Part II Electronic ground state -- Part III Single-particle excitations: Electrons and holes -- Part IV Pair and collective excitations.

Sommario/riassunto

The many-body-theoretical basis and applications of theoretical spectroscopy of condensed matter, e.g. crystals, nanosystems, and



molecules are unified in one advanced text for readers from graduate students to active researchers in the field. The theory is developed from first principles including fully the electron-electron interaction and spin interactions. It is based on the many-body perturbation theory, a quantum-field-theoretical description, and Green's functions. The important expressions for ground states as well as electronic single-particle and pair excitations are explained. Based on single-particle and two-particle Green's functions, the Dyson and Bethe-Salpeter equations are derived. They are applied to calculate spectral and response functions. Important spectra are those which can be measured using photoemission/inverse photoemission, optical spectroscopy, and electron energy loss/inelastic X-ray spectroscopy. Important approximations are derived and discussed in the light of selected computational and experimental results. Some numerical implementations available in well-known computer codes are critically discussed.The book is divided into four parts: (i) In the first part the many-electron systems are described in the framework of the quantum-field theory. The electron spin and the spin-orbit interaction are taken into account. Sum rules are derived. (ii) The second part is mainly related to the ground state of electronic systems. The total energy is treated within the density functional theory. The most important approximations for exchange and correlation are delighted. (iii) The third part is essentially devoted to the description of charged electronic excitations such as electrons and holes. Central approximations as Hedin's GW and the T-matrix approximation are discussed.(iv) The fourth part is focused on response functions measured in optical and loss spectroscopies and neutral pair or collective excitations.