Results 21 to 30 of about 804,957 (290)

Spontaneous and stimulated Raman scattering in long low loss fibers [PDF]

open access: yes, 1978
This paper considers the problem of forward Raman scattering process in a single transverse mode fiber. Both pump wave depletion and spontaneous scattering are considered in the analysis.
AuYeung, John, Yariv, Amnon
core   +1 more source

Slowing of pulses to c/10 with subwatt power levels and low latency using Brillouin amplification in a bismuth-oxide optical fiber [PDF]

open access: yes, 2007
We report the generation of slow light using Brillouin amplification in a short length of highly nonlinear bismuth-oxide fiber. By using just 2m of fiber, we demonstrate a five-fold reduction in group velocity for ~200ns pulses, which we believe to be a ...
Jáuregui Misas, César   +2 more
core   +1 more source

Deformation of a flexible fiber in a viscous flow past an obstacle [PDF]

open access: yes, 2015
We study the deformation and transport of elastic fibers in a viscous Hele-Shaw flow with curved streamlines. The variations of the global velocity and orientation of the fiber follow closely those of the local flow velocity. The ratios of the curvatures
Auradou, H.   +3 more
core   +3 more sources

Optical fibers with interferometric path length stability by controlled heating for transmission of optical signals and as components in frequency standards [PDF]

open access: yes, 2005
We present a simple method to stabilize the optical path length of an optical fiber to an accuracy of about 1/100 of the laser wavelength. We study the dynamic response of the path length to modulation of an electrically conductive heater layer of the ...
A. Peters   +27 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

Modified Sagnac experiment for measuring travel-time difference between counter-propagating light beams in a uniformly moving fiber [PDF]

open access: yes, 2006
A fiber optic conveyor has been developed for investigating the travel-time difference between two counter-propagating light beams in uniformly moving fiber.
Aiping Yao   +12 more
core   +2 more sources

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

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

Electrode geometry and preferential stimulation of spinal nerve fibers having different orientations: a modeling study [PDF]

open access: yes, 1992
In a computer modeling study of epidural spinal cord stimulation using a longitudinal array of electrode contacts, the effect of contact geometry and contact combination on the threshold voltages for stimulation of dorsal column (DC) fibers and dorsal ...
Holsheimer, Jan, Struijk, Johannes J.
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

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