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Now showing items 2761-2770 of 2808
An experimental investigation into crushing behavior of radially stiffened GFRP composite tubes
(
Elsevier Ltd
, 2014 , Article)
State-of-the-art studies of the crushing of composite tubes reveal different factors affecting their crashworthiness. Of those factors, the geometrical property of the tube is of great interest. In the current study, four ...
Crushing behavior of a unit cell of CFRP lattice core for sandwich structures’ application
(
Elsevier Ltd
, 2017 , Article)
Sandwich structures made of composites are designed mainly for higher and efficient load capacity. Mostly, the use of composite materials in lattice core sandwich structures is limited to the face sheet; whereas, the core ...
Replacement policies for a parallel system with shortage and excess costs
(
Elsevier Ltd
, 2016 , Article)
It has been assumed in most maintenance models that (i) the number of units for a parallel system can be predefined precisely, (ii) maintenance cost after failure should be avoided, and (iii) age replacement can always be ...
Continuity of sleep problems from adolescence to young adulthood: results from a longitudinal study
(
Elsevier Inc
, 2017 , Article)
Background
Considering the lack of evidence on incidence and continuity of sleep problems from adolescence to young adulthood, this study explores sleep problems’ incidence and their continuation rates from 14 to 21 ...
Thujone inhibits the function of 7-nicotinic acetylcholine receptors and impairs nicotine-induced memory enhancement in one-trial passive avoidance paradigm
(
Elsevier Ireland Ltd
, 2017 , Article)
Effects of thujone, a major ingredient of absinthe, wormwood oil and some herbal medicines, were tested on the function of 7 subunit of the human nicotinic acetylcholine (7 nACh) receptor expressed in Xenopus oocytes using ...
Viscoelastic and photo-actuation studies of composites based on polystyrene-grafted carbon nanotubes and styrene-b-isoprene-b-styrene block copolymer
(
Elsevier Ltd
, 2014 , Article)
Photoactuating composites based on the linear triblock copolymer polystyrene-b-polyisoprene-b-polystyrene (SIS) were prepared by incorporation of polystyrene-modified multiwalled carbon nanotubes (MWCNT-PS). Modification ...
Calorimetric analysis and molecular dynamics simulation of cure kinetics of epoxy/chitosan-modified Fe3O4 nanocomposites
(
Elsevier B.V.
, 2017 , Article)
Fe3O4 magnetic nanoparticles (MNPs) were synthesized and modified with chitosan as a natural surface modifier to prevent their aggregation and make them potent to contribute to ring opening of epoxy. Functionalized Fe3O4 ...
Flexible NO2 sensors from renewable cellulose nanocrystals/iron oxide composites
(
Elsevier
, 2016 , Article)
A bio-friendly nanostructured cellulose nanocrystal (CNC) sheet with iron oxide grown on it acting as a nitrogen dioxide (NO2) gas sensor was fabricated by hydrothermal method. The structural investigation was done to ...
Investigation of fracture behavior of annealed electroless Ni-P coating on pipeline steel using acoustic emission methodology
(
Elsevier B.V.
, 2017 , Article)
Electroless Ni-P coatings have been a popular option for a variety of applications because of their autocatalytic nature and excellent resistance to wear and corrosion. These properties of Ni-P coating suggest an additional ...
The preparation, properties and applications of electrospun co-polyamide 6,12 membranes modified by cellulose nanocrystals
(
Elsevier Ltd
, 2017 , Article)
In this paper, we present the preparation and properties of a unique material system manufactured by electrospinning of co-polyamide 6,12 (coPA) from an n-propanol solution. A significant advantage of this system is that ...