Results 71 to 80 of about 208,947 (326)

Gain flattened S+C+L-band bidirectional thulium doped fiber/multi-section fiber optical parametric hybrid amplifier

Ain Shams Engineering Journal
This article demonstrates the achievement of optical amplification across the S, C, and L-bands. A hybrid amplifier is proposed that utilizes a combination of bidirectional thulium-doped fiber amplifier (TDFA) and multi-section fiber optical parametric ...
Hafiz Muhammad Obaid, Hifsa Shahid, Muhammad Zafrullah, Majid Ali, Faizan Rashid, Baseem Khan   +5 more
doaj   +1 more source

Molecular characterisation of human penile carcinoma and generation of paired epithelial primary cell lines

Molecular Oncology, EarlyView.
Generation of two normal and tumour (cancerous) paired human cell lines using an established tissue culture technique and their characterisation is described. Cell lines were characterised at cellular, protein, chromosome and gene expression levels and for HPV status.
Simon Broad, Mahmood Hachim, Tom Bertin, Karolina Penderecka, Rifat Hamoudi, Saif Khan, Rui Henrique, Natalie Bergmoser, Manit Arya, Kalle Sipila, Matteo Vietri Rudan, Asif Muneer, Aamir Ahmed   +12 more
wiley   +1 more source

Transverse magnetic mode nonreciprocal propagation in an amplifying AlGaInAs/InP optical waveguide isolator. [PDF]

, 2006
International audienceThe design, fabrication, and characterization of an amplifying transverse magnetic ͑TM͒-mode optical waveguide isolator operating at a wavelength of 1300 nm are presented.
Bart Moeyersoon, Beatrice Dagens, Dalila Make, Dries Van Thourhout, Jean Decobert, Liesbet Lagae, Mathias Vanwolleghem, Odile Le Gouezigou, Reinier Vanheertum, Roel Baets, Shimizu H., Wouter Van Parys   +11 more
core   +1 more source

HSP70 governs permeability and mechanotransduction in primary human endothelial cells

FEBS Open Bio, EarlyView.
HSP70 chemical inhibition reduces endothelial cell proliferation and increases permeability, the latter supported by normal interendothelial junctional protein distribution. HSP70 also plays a role in shear stress response, a hemodynamic force naturally present in blood vessels and correlated with vessel protection.
Andrea Pinto‐Martinez, Everton G. Melo, Isadora C. B. Pavan, Percíllia V. S. Oliveira, Luiza B. C. T. Coimbra, Thaís L. S. Araujo   +5 more
wiley   +1 more source

Measuring Optimal Length of the Amplifying Fiber in Different Working Conditions of the Amplifier

Advances in Electrical and Electronic Engineering, 2014
The aim of this article is to highlight possible unwanted behaviour of an EDFA optical amplifier during temperature changes. After a brief introduction dealing with amplifiers and doped fibers in general we focus on the assembly of our own EDFA amplifier
Radek Poboril, Petr Siska, Jan Latal, Martin Smrz, Jakub Cubik, Stanislav Kepak, Vladimir Vasinek   +6 more
doaj   +1 more source

SmallTalk: a novel small‐sized fusion tag for peptide expression and purification

FEBS Open Bio, EarlyView.
The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq, Nestor G. Casillas‐Vega, Alma Gomez‐Loredo, Xristo Zarate   +3 more
wiley   +1 more source

Directional amplifier in an optomechanical system with optical gain

, 2018
Directional amplifiers are crucial nonreciprocal devices in both classical and quantum information processing. Here we propose a scheme for realizing a directional amplifier between optical and microwave fields based on an optomechanical system with ...
Jiang, Cheng, Li, Yong, Song, L. N.
core   +1 more source

Effect of doping on the optical gain and the spontaneous noise enhancement factor in quantum well amplifiers and lasers studied by simple analytical expressions [PDF]

, 1988
The maximum optical gain and the spontaneous noise enhancement factor in quantum well structures are expressed as extremely simple functions that are accurate over a wide range of carrier densities.
Vahala, Kerry J., Zah, C. E.
core   +1 more source

KLK7 overexpression promotes an aggressive phenotype and facilitates peritoneal dissemination in colorectal cancer cells

FEBS Open Bio, EarlyView.
KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani, Tobias Dreyer, Meriem Naim, Rea Lo Dico, Natalia A. Ignatenko, Viktor Magdolen, Dalila Darmoul   +6 more
wiley   +1 more source

Saturation Gain Characteristics of Quantum-Well Semiconductor Optical Amplifier

مجلة النهرين للعلوم الهندسية, 2011
Recently, there is an increasing interest onquantum well (QW) semiconductor optical amplifier in optical communications and optical signal processing applications.
Alhuda A. Al-mfrji
doaj