Results 181 to 190 of about 13,212 (235)

Overview of the POF-ALL European project

open access: yes, 2006
Cardenas, D.   +6 more
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Genes and translocations involved in POF

American Journal of Medical Genetics, 2002
AbstractChanges at a single autosomal locus and many X‐linked loci have been implicated in women with gonadal dysgenesis [premature ovarian failure (POF) with deficits in ovarian follicles]. For the chromosome 3 locus, a forkhead transcription factor gene (FOXL2) has been identified, in which lesions result in decreased follicles by haploinsufficiency.
Schlessinger David   +8 more
openaire   +4 more sources

WDM over POF - A way to increase transmission capacity of POF

2011 International Students and Young Scientists Workshop "Photonics and Microsystems", 2011
Polymer optical fibers (POFs) are having an increasing role in short range optical communication systems. Home networks present a very interesting application sector due to numerous advantages of POFs over traditional communication mediums.
S. Haupt, M. Haupt, U. H. P. Fischer
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The Reliability of POF

2002
Polymer optical fibers, like other technological products, are subjected throughout the whole of their service life to a great many kinds of stress from the environment — mechanical, climatic, chemical, biological, and radiometric. As a result of these stress factors, physical and chemical alterations may arise in the materials used.
Werner Daum   +3 more
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Zuverlässigkeit von POF

2001
Optische Polymerfasern unterliegen, wie andere technische Erzeugnisse auch, wahrend ihrer gesamten Einsatzdauer einer Vielzahl von mechanischen, klimatischen, chemischen, biologischen und strahlungsphysikalischen Beanspruchungen aus ihrer Umgebung.
W. Daum   +3 more
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POFs for Sensing Applications

Workshop on Specialty Optical Fibers and their Applications, 2013
The lecture highlights the use of polymer optical fibers (POFs) as sensors in selected applications like structural health monitoring in geotechnical and civil engineering, composites monitoring, healthcare monitoring and personnel protection. The results achieved in these applications fields in the framework of several German and European projects ...
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POF is overcoming silica in bit rate

OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001
The great advantage of the perfluorinated (PF) polymer base graded index polymer optical fiber ( GI POF) in bandwidth was clarified in detail. The PF polymer base POF has the potential of achieving the highest bit rate among existing physical media including even silica fiber, since the material dispersion of the PF polymer is lower than those of ...
Takaaki Ishigure, Yasuhiro Koike
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Components for POF systems

2002
An optical transmission system essentially consists of three components. The transmitter converts the electric sequence of signals into an optical one and inputs it into the optical transmission channel, in this case the polymer optical fibers. The transmission channel, which may contain further active or passive components in addition to the fibers ...
Werner Daum   +3 more
openaire   +1 more source

Entwicklung der POF

2001
Die ersten POF wurden bereits Ende der 60er Jahre von der Firma DuPont hergestellt. Aufgrund der unvollkommenen Reinigung der Ausgangsmaterialien lag die Dampfung noch im Bereich von 1000 dB/km. In den 70er Jahren konnten die Verluste nahe an die theoretischen Grenzen von ca. 125 dB/km bei 650 nm Wellenlange reduziert werden.
W. Daum   +3 more
openaire   +1 more source

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