Results 61 to 70 of about 105,801 (230)

Modal performance degradation of naturally aged NBR

open access: yesPolymer Testing, 2022
Damping is often an invisible requirement for a good mechanical design. To render the long-term service of viscoelastic dampers, it is essential for design engineers to estimate the degradation of the damping characteristics with age.
Syam Prasad Ammineni   +2 more
doaj   +1 more source

Geochemical-geophysical investigations, Fairbanks district [PDF]

open access: yes, 1967
Trace element distribution in a subarctic valley in the Cleary Hill area of the Fairbanks gold district has been studied. Zinc and arsenic have been found excellent pathfinder elements for auriferous deposits. Methods of analysis for copper, lead, zinc,
Beistline, E.H.   +7 more
core  

Neighborhood Matching Network for Entity Alignment

open access: yes, 2020
Structural heterogeneity between knowledge graphs is an outstanding challenge for entity alignment. This paper presents Neighborhood Matching Network (NMN), a novel entity alignment framework for tackling the structural heterogeneity challenge.
Feng, Yansong   +4 more
core   +1 more source

Convergence and coupling for spin glasses and hard spheres [PDF]

open access: yes, 2009
We discuss convergence and coupling of Markov chains, and present general relations between the transfer matrices describing these two processes. We then analyze a recently developed local-patch algorithm, which computes rigorous upper bound for the ...
Chanal, Cedric, Krauth, Werner
core   +1 more source

Modeling n‐Butyl Acrylate Polymerization using Complementary Modeling Techniques

open access: yesMacromolecular Reaction Engineering, EarlyView.
Two different simulation methods are used for the radical polymerization of nBA: deterministic in Predici and stochastic with mcPolymer. It has been successfully implemented across a wide temperature range. It turns out that the partially different implementation of chain‐length‐dependent termination and β‐scission are important for obtaining ...
Marco Drache   +3 more
wiley   +1 more source

Negative BOLD in the Lateral Geniculate Nucleus: Neuronal Implications and Cortico-Thalamic Feedback

open access: yesi-Perception, 2011
Previous research has demonstrated a sustained negative BOLD response (NBR) that is negatively correlated with the spatio-temporal properties of a visual stimulus. Whilst it has been suggested that the NBR surrounding the positive BOLD response (PBR) may
M. Uesaki   +9 more
doaj   +1 more source

Enhancing the Properties of PA6 and PA6/Ionomer Scraps Blend With CaCO3 Nanoparticles: Rheological, Mechanical, Thermal, and Morphological Evaluation

open access: yesPolymer Engineering &Science, EarlyView.
ABSTRACT This study investigated the effects of incorporating ionomer scraps and CaCO3 nanoparticles on the rheological, mechanical, thermal, and morphological properties of neat polyamide 6 (PA6) and a PA6/ionomer scraps (80/20) blend. The ionomer formed an immiscible dispersed phase within the PA6, acting as an impact modifier; however, it reduced ...
Roberto Alves Taveira Jr.   +2 more
wiley   +1 more source

ANALYSIS OF THE BURNED AREA IN GREBAŠTICA USING SENTINEL-2 SATELLITE IMAGERY AND VEGETATION INDICES

open access: yese-Zbornik. Elektronički Zbornik Radova Građevinskog Fakulteta
: This study analyzed the area of Grebaštica, located in the Šibenik-Knin County, before and after a major fire that occurred on 13 July 2023, with the aim of calculating the extent of the burned area using Sentinel-2 satellite imagery and QGIS software.
Veronika Trninić   +3 more
doaj   +1 more source

Novel prepared nano potassium methyl siliconate as antioxidant for nitrile rubber

open access: yesPolymers and Polymer Composites, 2023
In this work, novel potassium methyl siliconate (PMS) was employed as a new nano-type antioxidant for acrylonitrile-butadiene rubber (NBR). NBR/PMS composites were produced by incorporating various contents of the prepared compound as anti-ageing agents (
Doaa S Mahmoud   +3 more
doaj   +1 more source

Particle-Localized Ground State of Atom-Molecule Bose-Einstein Condensates in a Double-Well Potential

open access: yes, 2010
We study the effect of atom-molecule internal tunneling on the ground state of atom-molecule Bose-Einstein condensates in a double-well potential. In the absence of internal tunneling between atomic and molecular states, the ground state is symmetric ...
Motohashi, Atsushi, Nikuni, Tetsuro
core   +1 more source

Home - About - Disclaimer - Privacy