Results 31 to 40 of about 104,421 (228)

Investigating the Effect of Curing Activators on the Cure Kinetics of Acrylonitrile–Butadiene Rubber Filled with Graphene Oxide and Reduced Graphene Oxides Nanocomposites

International Journal of Polymer Science, 2023
For the first time, acrylonitrile–butadiene rubber (NBR)–graphene oxide (GO) and reduced graphene oxide (rGO) composites were prepared without cure activators: zinc oxide/stearic acid (ZnO/SA) and studied.
Bismark Mensah, Boateng Onwona-Agyeman, Johnson Kwame Efavi, Ralph Abakah Ofor, Mawufemor Zigah, Joyce Koranteng, Maxwell Karikari, Frank Nsaful, Daniel Akwei Addo   +8 more
doaj   +1 more source

Forbidden M1 and E2 transitions in monovalent atoms and ions [PDF]

, 2017
We carried out a systematic high-precision relativistic study of the forbidden magnetic-dipole and electric-quadrupole transitions in Ca+, Rb, Sr+, Cs, Ba+, Fr, Ra+, Ac2+, and Th3+.
Johnson, W. R., Safronova, M. S., Safronova, U. I.   +2 more
core   +3 more sources

Statistical distributions in the folding of elastic structures [PDF]

, 2010
The behaviour of elastic structures undergoing large deformations is the result of the competition between confining conditions, self-avoidance and elasticity. This combination of multiple phenomena creates a geometrical frustration that leads to complex
Arezki Boudaoud, Aste T, Bouchaud J, Boué L, Deboeuf S, Gomes M A F, Gomes M A F, Laurent Boué, Mokhtar Adda-Bedia, Mora T, Stéphanie Debœuf, Witten T A   +11 more
core   +4 more sources

Investigation of the neurovascular coupling in positive and negative BOLD responses in human brain at 7T [PDF]

, 2014
Decreases in stimulus-dependent blood oxygenation level dependent (BOLD) signal and their underlying neurovascular origins have recently gained considerable interest.
Aneurin J. Kennerley, Bandettini, Berwick, Blockley, Bohraus, Boorman, Boulant, Buxton, Buxton, Chen, Cohalan, Dimo Ivanov, Donahue, Donahue, Duvernoy, Galassi, Goense, Goense, Goense, Gray, Harald E. Möller, Harel, Hillman, Hua, Huber, Huber, Hurley, Hutchison, Ivanov, Jiang, Jin, Jin, Jochimsen, Jozien Goense, Jöran Lepsien, Keller, Kennerley, Kennerley, Kennerley, Kim, Kim, Kim, Kim, Kim, Kim, Laurentius Huber, Lee, Liu, Logothetis, Logothetis, Lu, Lu, Lu, Mandeville, Martin, Martindale, Moradi, Mullinger, Pasley, Payne, Pfeuffer, Raz, Robert Trampel, Robert Turner, Schridde, Schäfer, Shih, Shin, Shmuel, Shmuel, Smirnakis, Smith, Stefanovic, Stefanovic, Steffen N. Krieger, Tajima, Takano, Turner, Vafaee, Wade, Weber, Wehrli, Wong, Woolsey, Worsley, Xie, Yang, Yaseen, Zappe, Zhao, Zong   +90 more
core   +1 more source

On the use of satellite Sentinel 2 data for automatic mapping of burnt areas and burn severity [PDF]

, 2018
In this paper, we present and discuss the preliminary tools we devised for the automatic recognition of burnt areas and burn severity developed in the framework of the EU-funded SERV_FORFIRE project.
Ghermandi, Luciana, Lasaponara, Rosa, Tucci, Biagio   +2 more
core   +1 more source

Mechanical performance design via regulating the interactions in acrylonitrile-butadiene rubber/clay nanocomposites by small molecule compounds

Polymer Testing, 2022
In this study, we introduced two small molecule compounds, hexadecyltrimethylammonium chloride (CTAC) and triethylene glycol bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate (AO245) to control the mechanical performance of acrylonitrile-butadiene ...
Xiaoming Zhang, Zilong Chen, Jian Li, Xiaohui Wu, Jun Lin, Shaojian He   +5 more
doaj   +1 more source

Utilização de NBR modificada com grupos 2-oxazolina em misturas de NBR/EVA [PDF]

Polímeros, 2003
Misturas envolvendo borracha nitrílica e copolímeros de etileno-acetato de vinila na proporção 70:30 % em peso, foram preparadas na presença de borracha nitrílica funcionalizada com 2-oxazolina isoladamente ou combinada com EVA funcionalizado com grupos hidroxila, carboxila ou mercaptana.
Almeida, Mauricio S. M., Soares, Bluma G., Guimarães, Pedro Ivo C.   +2 more
openaire   +4 more sources

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

, 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

Molecular Cages as Probes in Indicator Displacement Assays: The Case of Scopolamine Detection

Angewandte Chemie, EarlyView.
In this research, we show the concept of molecular cages as probes in indicator displacement assays, focusing on scopolamine detection, a drug often used in drug‐facilitated sexual assaults. Drug sensing occurs via the drug‐induced transformation of non‐emissive [Fluorescein2⊂Cage] complex into [Scopolamine⊂Catenane] and highly emissive free ...
Giovanni Montà‐González, Eva Garrido, Estela Climent, Cristian Vicent, Ramón Martínez‐Máñez, Vicente Martí‐Centelles   +5 more
wiley   +2 more sources

Study of The Mechanical Properties For Particulate Polymer Blend Composite [PDF]

Engineering and Technology Journal, 2011
This research involves using epoxy resin and (Nitride Butadiene Rubber NBR) to form a blend with different resin ratios (90 – 10)%, (80 – 20)%, (70 – 30)%, and (60 – 40)% to achieve better ratio for impact strength as a function of better toughness; then
doaj   +1 more source