Results 251 to 260 of about 826,919 (296)

Quality carbon fibers from fractionated lignin

Green Chemistry, 2017
A strategy was developed to produce quality carbon fibers from industrial waste lignin. The strategy employs an enzyme-mediator system to efficiently fractionate lignin into soluble and insoluble fractions, where the latter serves as a superior carbon fiber precursor.
Qiang Li, Shangxian Xie, Wilson K. Serem, Mandar T. Naik, Li Liu, Joshua S. Yuan   +5 more
openaire   +1 more source

The Quality of Fiber Count Data

Applied Industrial Hygiene, 1989
Abstract Optical fiber counts are used to determine asbestos exposure, so it is important to assess, control, and document the quality of those counts. These functions are the responsibility of the quality assurance (QA) coordinator in each laboratory.
Martin T. Abell, Stanley A. Shulman, Paul A. Baron   +2 more
openaire   +1 more source

Frost kill and kenaf fiber quality

Industrial Crops and Products, 1999
Abstract Kenaf (Hibiscus cannabinus) grown in northern Mississippi and elsewhere often is injured by early frost and killed before harvest. Frost kill often is associated with fungal growth or rot, so its effect on fiber quality is a major concern. Fiber processing also affects the quality and chemical composition of fibers. Therefore, this study was
Gita N. Ramaswamy, Bambang Soeharto, Catherine R. Boyd, Brian S. Baldwin   +3 more
openaire   +1 more source

Fabrication techniques for high quality optical fibers

ICALEO '83: Proceedings of the Optical Communications Symposium, 1983
Major technologies to fabricate high quality optical fiber lightguides will be reviewed: the OVD, VAD, MCVD, and PCVD processes. Other potential new processing techniques will also be discussed.
openaire   +1 more source

Cotton Breeding for Fiber Quality Improvement

2014
Cotton (Gossypium hirsutum L.) is the world’s leading fiber crop, grown or processed in many countries, providing a major contribution to their economies. Yield is economically most important to a producer which drives cultivar development and adoption; however, fiber quality is the primary focus for spinning mills. Cotton fiber quality must improve to
Greg Constable, Danny Llewellyn, Sally Ann Walford, Jenny D. Clement   +3 more
openaire   +1 more source

Fiber quality testing by holography methods

SPIE Proceedings, 2003
Fiber quality estimation by holographic interferometry correlator is presented. The method gives the possibility to test fiber seams and quality homogeneity of the fiber in the laboratory condition. The method is very simple and gives one possibility to provide automatic control of the fiber fabrication.
Veronika A. Babenko, Vladimir B. Konstantinov, Alexander F. Malyi   +2 more
openaire   +1 more source

Beam quality of photonic-crystal fibers

Journal of Lightwave Technology, 2005
In this paper, we investigate the beam quality of photonic-crystal fibers (PCFs) with one, three, and seven missing airholes. The beam quality factor M/sup 2/ of a PCF is generally larger than unity, even if it is single mode. The results are especially important for the design and measurements of single-mode PCF lasers. A comparison between an M/sup 2/
A. Mafi, J.V. Moloney
openaire   +1 more source

High-quality acrylic fibers from waste textiles

Science of The Total Environment
The objective of this work is to develop a closed-loop recycling method specifically tailored for acrylic fibers. Recycling waste acrylic is essential, given the vast volumes of acrylic-containing textiles produced yearly and the strong capability of acrylics to generate toxic microplastics.
Bingnan, Mu, Xiaoqing, Yu, Yuanyi, Shao, Yiqi, Yang   +3 more
openaire   +2 more sources

Harvester-Based Cotton Fiber Quality Sensor

2009 Reno, Nevada, June 21 - June 24, 2009, 2009
A multispectral sensor for in-situ cotton fiber quality measurement was developed. The sensor consists of a camera, four optical filters, a halogen light source, a fiber sampling device, and an image collection and processing system. The optical filters for the camera were selected based on the multiple linear regression analyses with the 100-nm ...
null Vince P Schielack III, null Ruixiu Sui, null J A Thomasson, null Eric Hequet, null Christine Morgan   +4 more
openaire   +1 more source

Comparison of the beam quality in fiber amplifier employing tapered fiber and uniform fiber

International Photonics and OptoElectronics Meeting 2019 (OFDA, OEDI, ISST, PE, LST, TSA), 2019
Simulation results of laser beam quality in fiber amplifier show that the output laser beam quality of the tapered fiber is much better than that of the uniform fiber amplifier under the same conditions.
Lingfa Zeng, Chen Shi, Xiaolin Wang, Baolai Yang, Hanwei Zhang, Xiaoming Xi, Pu Zhou, Xiaojun Xu   +7 more
openaire   +1 more source