Results 21 to 30 of about 1,143,741 (312)

Specific heat of a ferromagnetic film [PDF]

open access: yesPhysical Review E, 1996
We analyze the specific heat for the $O(N)$ vector model on a $d$-dimensional film geometry of thickness $L$ using ``environmentally friendly'' renormalization. We consider periodic, Dirichlet and antiperiodic boundary conditions, deriving expressions for the specific heat and an effective specific heat exponent, $α\ef$. In the case of $d=3$, for $N=1$,
Freire, F.   +2 more
openaire   +3 more sources

Synthesis, Optical, Magnetic and Thermodynamic Properties of Rocksalt Li1.3Nb0.3Mn0.4O2 Cathode Material for Li-Ion Batteries

open access: yesCrystals, 2021
Since the discovery of the reversible intercalation of lithium-ion materials associated with promising electrochemical properties, lithium-containing materials have attracted attention in the research and development of effective cathode materials for ...
Mohamed Kamel   +9 more
doaj   +1 more source

Kinks in the Electronic Specific Heat [PDF]

open access: yesPhysical Review Letters, 2009
We find that the heat capacity of a strongly correlated metal presents striking changes with respect to Landau Fermi liquid theory. In contrast with normal metals, where the electronic specific heat is linear at low temperature (with a T^3 term as a leading correction), a dynamical mean-field study of the correlated Hubbard model reveals a clear kink ...
A. Toschi   +3 more
openaire   +5 more sources

Thermal Properties of Recycle Aggregate Concrete with Different Densities [PDF]

open access: yesEngineering and Technology Journal, 2015
The present research intended to determine thermal properties (thermalconductivity, thermal diffusivity and specific heat) of concrete manufactured by recycle waste of clay brick and thermostone for using it as aggregate after crushing process.
Amer M. Ibrahim   +2 more
doaj   +1 more source

Crystal Growth and Thermal Properties of Quasi-One-Dimensional van der Waals Material ZrSe3

open access: yesMicromachines, 2022
ZrSe3 with a quasi-one-dimensional (quasi-1D) crystal structure belongs to the transition metal trichalcogenides (TMTCs) family. Owing to its unique optical, electrical, and optoelectrical properties, ZrSe3 is promising for applications in field effect ...
Youming Xu, Shucheng Guo, Xi Chen
doaj   +1 more source

In Situ Synthesis of Alumina Nanoparticles in a Binary Carbonate Salt Eutectic for Enhancing Heat Capacity

open access: yesNanomaterials, 2020
A binary carbonate salt eutectic (Li2CO3-K2CO3)-based nanofluid was in situ synthesized by mixing with a precursor material, aluminum nitrate nonahydrate (Al(NO3)3·9H2O).
Yousof Nayfeh   +3 more
doaj   +1 more source

Magnetization, Band Gap and Specific Heat of Pure and Ion Doped MnFe2O4 Nanoparticles

open access: yesMagnetochemistry, 2023
We have studied the magnetic properties of ion doped MnFe2O4 nanoparticles with the help of a modified Heisenberg model and Green’s function theory taking into account all correlation functions.
I. N. Apostolova   +2 more
doaj   +1 more source

Temperature-dependent thermal properties of spark plasma sintered alumina [PDF]

open access: yesScience of Sintering, 2017
In this work, we report temperature-dependent thermal properties of alumina powder and bulk alumina consolidated by spark plasma sintering method. The properties were measured between room temperature and 250ºC using a thermal constants analyzer.
Saheb Nouari, Hayat Umer
doaj   +1 more source

FIRE CHARACTERISTICS FOR ADVANCED MODELLING OF FIRES [PDF]

open access: yesCivil Engineering Journal, 2016
This paper summarizes the material and fire properties of solid flammable/combustible materials /substances /products, which are used as inputs for the computer numerical fire models. At the same time it gives the test standards for their determination.
Otto Dvořák
doaj   +1 more source

The impact of heat waves on mortality. [PDF]

open access: yes, 2011
BACKGROUND: Heat waves have been linked with an increase in mortality, but the associated risk has been only partly characterized. METHODS: We examined this association by decomposing the risk for temperature into a "main effect" due to independent ...
Antonio Gasparrini   +3 more
core   +1 more source

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