نتایج جستجو برای: pof

تعداد نتایج: 836  

2017
Sebastian Randel Jeffrey Lee Florian Breyer Harald Rohde Bernhard Spinnler

Three different techniques are discussed that are currently under investigation at Siemens Corporate Technology – Information and Communications in order to exploit the bandwidth capacity of 1 mm PMMA Step-Index Polymer Optical Fiber (SI-POF). By using Adaptive Multitone Modulation (AMTM) a record result of 540 Mb/s transmission over 100 m of SI-POF is achieved.

Journal: :Journal of bacteriology 1995
I Kawagishi Y Maekawa T Atsumi M Homma Y Imae

Vibrio alginolyticus has two types of flagella (polar and lateral) in one cell. We isolated mutants with only a polar flagellum (Pof+ Laf-) or only lateral flagella (Pof- Laf+). Using these mutants, we demonstrated that the energy sources of the lateral and polar flagellar motors in V. alginolyticus are H+ and Na+ motive forces, respectively, as in the related species V. parahaemolyticus.

Journal: :Optics express 2011
Hak-Soon Lee Jun-Young Park Sang-Mo Cha Sang-Shin Lee Gyo-Sun Hwang Yung-Sung Son

Ribbon plastic optical fiber (POF) linked four-channel optical transmitter (Tx) and receiver (Rx) modules have been proposed and realized featuring an excellent alignment tolerance. The two modules share a common configuration involving an optical sub-assembly (OSA) with vertical cavity surface emitting lasers (VCSELs)/photodetectors (PDs), and their driver ICs, which are integrated onto a sing...

2014
Xiangyu Ma Yanchun Chen Xianghai Zhao Jinfeng Chen Chong Shen Song Yang

Age at natural menopause (ANM), a highly heritable phenotype, has been identified to be closely associated with major hormone-related diseases, including breast cancer and gynecological cancers. We previously identified an important role for the transforming growth factor, β receptor II (TGFBR2) gene polymorphisms in breast cancer susceptibility among Asian women. Considering the important role...

2003
Takaaki Ishigure Miki Hirai Masataka Sato Yasuhiro Koike

It was shown how high mechanical strength should be provided in the high numerical aperture (NA) graded-index plastic optical fiber (GI POF). In this newly developed GI POF, a copolymer of methyl methacrylate (MMA) and 2,2,2-trifluoroethyl methacrylate (3FMA) was used to increase the NA. The GI POF we proposed previously was composed of a PMMA homopolymer cladding and a doped PMMA core. It was ...

Journal: :Applied optics 2008
M Sheeba M Rajesh S Mathew V P N Nampoori C P G Vallabhan P Radhakrishnan

Two-photon excited (TPE) side illumination fluorescence studies in a Rh6G-RhB dye mixture doped polymer optical fiber (POF) and the effect of energy transfer on the attenuation coefficient is reported. The dye doped POF is pumped sideways using 800 nm, 70 fs laser pulses from a Ti:sapphire laser, and the TPE fluorescence emission is collected from the end of the fiber for different propagation ...

2012
Sandrine Caburet Petra Zavadakova Ziva Ben-Neriah Kamal Bouhali Aurélie Dipietromaria Céline Charon Céline Besse Paul Laissue Vered Chalifa-Caspi Sophie Christin-Maitre Daniel Vaiman Giovanni Levi Reiner A. Veitia Marc Fellous

BACKGROUND The human condition known as Premature Ovarian Failure (POF) is characterized by loss of ovarian function before the age of 40. A majority of POF cases are sporadic, but 10-15% are familial, suggesting a genetic origin of the disease. Although several causal mutations have been identified, the etiology of POF is still unknown for about 90% of the patients. METHODOLOGY/PRINCIPAL FIN...

2016
Dan Song Yun Zhong Chunfeng Qian Qinyan Zou Jian Ou Yichao Shi Liang Gao Gaigai Wang Zhenxing Liu Haibo Li Hailei Ding Huihua Wu Fuxin Wang Jing Wang Hong Li

Premature ovarian failure (POF) is one of the most common causes of infertility in women. In our present study, we established cyclophosphamide- (CTX-) induced POF rat model and elucidated its effect on ovarian function. We detected the serum estrogen, follicle stimulating hormone, and anti-Müllerian hormone of mice models by ELISA and evaluated their folliculogenesis by histopathology examinat...

2011
Mohammad Syuhaimi Ab-Rahman Hadi Guna

The green technology wavelength division multiplexing based on polymer optical fiber (GT-WDM-POF) network solution is presented. Green technology polymer optical fiber (GT-POF) splitter has been fabricated by environmental friendly handmade fusion technique, as an effective transmission media to split and recombine a number of different wavelengths. Two different wavelengths from ecologically f...

Journal: :Arthritis and rheumatism 2005
Emily C Somers Wendy Marder Gregory M Christman Vladimir Ognenovski W Joseph McCune

OBJECTIVE Cyclophosphamide (CYC) therapy for systemic lupus erythematosus (SLE), a disease predominantly affecting women of childbearing age, causes an unacceptably high incidence of irreversible premature ovarian failure (POF). This study was performed to evaluate the effectiveness of depot leuprolide acetate, a synthetic gonadotropin-releasing hormone analog (GnRH-a), for protection against P...

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