Results 11 to 20 of about 1,036,558 (308)

Analytical Formulas for Dispersion and Effective Area in Hollow-Core Tube Lattice Fibers

open access: yesFibers, 2021
In this work, we propose analytical formulas for the estimation of dispersion properties and effective area of the fundamental mode of hollow-core inhibited coupling fibers with a microstructured cladding composed by a ring of dielectric tubes.
Lorenzo Rosa   +2 more
doaj   +1 more source

Naturally Compatible: Starch Acetate/Cellulosic Fiber Composites. I. Processing and Properties [PDF]

open access: yes, 2009
Composite compounds based on hemp and flax fibers in triethyl citrate plasticized starch acetate were prepared by melt processing. For better properties and processability, compounds with plasticizer contents in the range 20-35 wt% were screened ...
Arbelaiz   +19 more
core   +2 more sources

Influence of the aerosol flow and exposure time on the structural changes in the filtering half masks material [PDF]

open access: yesJournal of the Serbian Chemical Society, 2018
The flow of air and aerosol particles through the filtering half masks material depends on the structure porosity. It is very difficult to determine the behaviour of the filtering material during the process of extraction and retention of aerosols.
Ivanković Negovan   +6 more
doaj   +1 more source

Surface Properties of Vitreous Fibers

open access: yesJournal of Colloid and Interface Science, 2000
The surface properties of various vitreous fibers, suspected to be toxic to humans and animals, were investigated by means of paramagnetic labels covalently linked to the surface. Computer-aided analysis of the electron paramagnetic resonance (EPR) spectra provided structural and dynamic information on the label and its environment.
OTTAVIANI M.   +2 more
openaire   +3 more sources

Slot Spiral Silicon Photonic Crystal Fiber With Property of Both High Birefringence and High Nonlinearity

open access: yesIEEE Photonics Journal, 2014
A photonic crystal fiber (PCF) made of silicon is proposed and numerically optimized with both ultrahigh birefringence and nonlinearity. By introducing an elliptical low-index slot in the core region, one of the orthogonally polarized fundamental modes ...
Tianye Huang   +5 more
doaj   +1 more source

Slow Light Propagation in a Thin Optical Fiber via Electromagnetically Induced Transparency [PDF]

open access: yes, 2002
We propose a novel configuration that utilizes electromagnetically induced transparency (EIT) to tailor a fiber mode propagating inside a thin optical fiber and coherently control its dispersion properties to drastically reduce the group velocity of the ...
A. B. Matsko   +50 more
core   +2 more sources

Golden spiral photonic crystal fiber: polarization and dispersion properties [PDF]

open access: yes, 2008
A golden spiral photonic crystal fiber (GS-PCF) design is presented in which air holes are arranged in a spiral pattern governed by the golden ratio, where the design has been inspired by the optimal arrangement of seeds found in nature.
Antkowiak   +16 more
core   +1 more source

An investigation of the effects of extraction and brushing variables on the properties of hedge sisal fibers using a raspador

open access: yesJournal of Natural Fibers, 2022
Natural fibers have emerged as an important component in the development of composite materials because of their mechanical properties. The properties are highly influenced by environmental conditions and processing techniques.
N. W. Barasa, K. D. Njoroge, T. O. Mbuya
doaj   +1 more source

Properties of Himalayan Nettle Fiber and Development of Nettle/Viscose Blended Apparel Textiles

open access: yesJournal of Natural Fibers, 2023
Nettle plants are grown naturally as forest weeds in Himalayan region without much explored economic value. The plant remains under-explored as far as extraction of fiber for textile and other industrial applications are concerned.
Kartick K. Samanta   +7 more
doaj   +1 more source

Reducing Plastic in Consumer Goods: Opportunities for Coarser Wool

open access: yesFibers, 2023
Production and use of plastic products have drastically increased during the past decades and their environmental impacts are increasingly spotlighted. At the same time, coarse wool, a by-product of meat and dairy production, goes largely unexploited in ...
Lisbeth Løvbak Berg   +5 more
doaj   +1 more source

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