Results 21 to 30 of about 2,906,621 (286)

Nondestructive characterization of fiber couplers by a local perturbation method [PDF]

open access: yes, 2002
A technique for the nondestructive characterization of fiber couplers is demonstrated. A CO2 laser beam is scanned along the coupler length inducing a local perturbation to the coupler eigenmodes.
Ghiringhelli, F.   +3 more
core   +1 more source

Protocol parameter selection for fiber-supported IEEE 802.16m networks [PDF]

open access: yes, 2014
In this paper we investigate protocol issues that might arise due to the extra fiber propagation delay in fiber-fed IEEE 802.16m networks. Our study indicates that although the fiber delay might affect network performance, an informed choice of protocol ...
Sklikas, Pavlos   +5 more
core   +1 more source

Wood anatomy of boreal species in a warming world: a review

open access: yesiForest - Biogeosciences and Forestry, 2020
Global warming is affecting tree growth and forest productivity, especially in the Northern boreal ecosystems. Wood quality, which is largely determined by anatomical traits of wood, is vital for the forest industry and global carbon sequestration ...
Zhang S   +4 more
doaj   +1 more source

Measuring Fiber Length in the Core and Shell Regions of Injection Molded Long Fiber-Reinforced Thermoplastic Plaques

open access: yes, 2020
Long fiber-reinforced thermoplastics are an attractive design option for many industries due to their excellent mechanical properties and processability.
Tim Osswald, Abrahán Bechara Senior
core   +1 more source

Steel Fiber Role-Impact Recent Literature on Steel Fiber Role in Resistance Improvement of Fibrous Concrete to Repeated Impacts

open access: yesWasit Journal of Engineering Sciences, 2023
Concrete is a brittle material when subjected to design and accidental impact loads, which are expected along the life span of the structure. To improve the impact performance of concrete, steel fibers are used as short discrete material reinforcing ...
Mustafa Ozakca   +4 more
doaj   +1 more source

The influence of fibre length and concentration on the properties of glass fibre reinforced polypropylene : 6. the properties of injection moulded long fibre PP at high fibre content [PDF]

open access: yes, 2005
The results of an investigation of the mechanical performance of injection moulded long glass fibre reinforced polypropylene with a glass fibre content in the range 0-73 weight % are presented. The composite modulus exhibited a linear dependence on fibre
Thomason, J.L.
core   +4 more sources

An experimental study of the California bearing ratio of basalt fiber reinforced loess

open access: yesShuiwen dizhi gongcheng dizhi, 2021
In order to study the factors affecting the CBR value of the fiber-reinforced loess and the mechanism of the fiber-reinforced soil, chopped basalt fiber was used as the reinforcement material, and the CBR test was performed by changing the moisture ...
Peida LI   +3 more
doaj   +1 more source

Single-mode fiber length for wavefront filtering

open access: yes, 2008
Stellar nulling interferometry offers the possibility of direct imaging of extrasolar planets necessary for the detection of extra-terrestrial life. Achieving optimum performance from the interferometers requires that the wavefronts of light reaching the
Dasgupta, Sonali   +2 more
core   +2 more sources

Experimental Study on the Mechanical Behaviors of Loess Reinforced with Randomly Distributed Basalt Fiber

open access: yesApplied Sciences, 2022
Loess has the structural characteristics of porous, weakly cemented and under compacted, leading to its collapsible, disintegrative and dissolute features.
Honggang Kou, Qiang Ma, Shunli Han
doaj   +1 more source

Hierarchical fiber bundle strength statistics [PDF]

open access: yes, 2012
Multi-scale modeling is currently one of the most active research topics in a wide range of disciplines. In this thesis we develop innovative hierarchical multi-scale models to analyze the probabilistic strength of fiber bundle structures.
Alsaeed Mahmoud Abdalrahman, Tamer
core   +1 more source

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