Results 11 to 20 of about 14,655,308 (282)

The deterioration process of limestone in the Anahita Temple of Kangavar (West Iran)

open access: yesHeritage Science, 2020
The well-known archaeological site of Anahita Temple at Kangavar is one of the most important Iranian stone monuments. It has been dated by various authors in an interval extended from Achaemenid to Sasanian Persian Empires (sixth century BCE to seventh ...
Vahid Barnoos   +2 more
doaj   +1 more source

*‐Topological properties [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
An ideal on a set X is a nonempty collection of subsets of X closed under the operations of subset (heredity) and finite unions (additivity). Given a topological space (X, τ) an ideal ℐ on X and A⊆X, ψ(A) is defined as ⋃{U ∈ τ : U − A ∈ ℐ}. A topology, denoted τ*, finer than τ is generated by the basis {U − I : U ∈ τ, I ∈ ℐ}, and a topology, denoted 〈ψ(
T. R. Hamlett, David Rose
openaire   +2 more sources

Structure and dielectric properties of electroactive tetraaniline grafted non-polar elastomers [PDF]

open access: yes, 2020
Intrinsic modification of polybutadiene and block copolymer styrene–butadiene–styrene with the electrically conducting emeraldine salt of tetraaniline (TANI) via a three-step grafting method, is reported in this work.
Ellingford, Christopher   +3 more
core   +1 more source

On the Strength of a 316L-Type Austenitic Stainless Steel Produced by Selective Laser Melting

open access: yesMetals, 2023
The developed microstructure and the tensile behavior of a 316L-type steel produced by selective laser melting were studied. This paper particularly aims to clarify the dislocation substructures in the developed steel, focusing on the density of ...
Marina Odnobokova   +5 more
doaj   +1 more source

Solid Solution Strengthening of Mo, Re, Ta and W in Ni during High-Temperature Creep

open access: yesMetals, 2021
Solid solution strengthening of the unordered γ matrix phase by alloying elements is of great importance during creep of Ni-based superalloys, particularly at high temperatures above 1000 °C.
Lukas Haußmann   +4 more
doaj   +1 more source

The Frustration-induced Ferroelectricity of a Manganite Tricolor Superlattice with Artificially Broken Symmetry

open access: yesScientific Reports, 2017
In this paper, [(La0.9Sr0.1MnO3)n/(Pa0.9Ca0.1MnO3)n/(La0.9Sb0.1MnO3)n]m superlattices films have been deposited on (001) Nb:SrTiO3 substrates by a laser molecular-beam epitaxy technology.
Huanyu Pei   +8 more
doaj   +1 more source

Effect of Alloying on the Nucleation and Growth of Laves Phase in the 9–10%Cr-3%Co Martensitic Steels during Creep

open access: yesMetals, 2020
Five Co-modified P92-type steels with different contents of Cr, W, Mo, B, N, and Re have been examined to evaluate the effect of the chemical composition on the evolution of Laves phase during creep at 650 °C. The creep tests have been carried out at 650
Alexandra Fedoseeva   +5 more
doaj   +1 more source

Properties of patchy colloidal particles close to a surface: a Monte Carlo and density functional study [PDF]

open access: yes, 2012
We investigate the behavior of a patchy particle model close to a hard-wall via Monte Carlo simulation and density functional theory (DFT). Two DFT approaches, based on the homogeneous and inhomogeneous versions of Wertheim's first order perturbation ...
Daniel de las Heras   +7 more
core   +2 more sources

Embedding Properties of sets with finite box-counting dimension [PDF]

open access: yes, 2019
In this paper we study the regularity of embeddings of finite--dimensional subsets of Banach spaces into Euclidean spaces. In 1999, Hunt and Kaloshin [Nonlinearity 12 1263-1275] introduced the thickness exponent and proved an embedding theorem for ...
Margaris, Alexandros, Robinson, James C.
core   +2 more sources

Coal Permeability Variation during the Heating Process considering Thermal Expansion and Desorption Shrinkage

open access: yesAdsorption Science & Technology, 2022
In order to explore the influence of coal deformation caused by temperature and desorption on seepage characteristics in the process of heat injection mining of coalbed methane, the permeability test, thermal expansion, and constant temperature ...
Xiaoyu Su   +3 more
doaj   +1 more source

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