Results 91 to 100 of about 57,612 (310)

Design of a 50 GHz Bandwidth DPSK Compatible Monolithically Integrated Optical Receiver

, 2007
The goal of this work is the design, analysis, and simulation of a monolithic optical receiver consisting of two balanced waveguide photodiodes integrated with a differential transimpedance amplifier, based on InP double heterojunction bipolar ...
Bogacki, Kevin Joseph
core  

Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path

, 2006
An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas, K. Zettl, Knapek, Markus, Zettl, Karl, H. Henniger, Giggenbach, Dirk, D. Giggenbach, Henniger, Hennes, Horwath, Joachim, J. Horwath, N. Perlot, M. Knapek   +11 more
core   +1 more source

Nonlinear optical thresholding in a 4-Channel OCDMA system via two-photon absorption [PDF]

, 2009
We demonstrate the use of a Two-Photon Absorption based detector in an OCDMA system.
K. J. Dexter, Petropoulos, P., Richardson, D.J., Dexter, Karl J., Reid, Douglas A., Reid, D.A., Barry, Liam P., Dexter, K.J., D. J. Richardson, Barry, L.P., D. A. Reid, L. P. Barry, P. Petropoulos   +12 more
core   +1 more source

Multi-Carrier Coherent Receiver Based on a Shared Optical Hybrid and a Cyclic AWG Array for Terabit/s Optical Transmission

IEEE Photonics Journal, 2010
We describe a multi-carrier coherent-receiver scheme where the coherent beating between an ultra-high-speed multi-carrier signal and multiple optical local oscillators (OLOs) is conducted in a single optical hybrid, followed by carrier separation through
Xiang Liu, D. M. Gill, S. Chandrasekhar, L. L. Buhl, M. Earnshaw, M. A. Cappuzzo, L. T. Gomez, Y. Chen, F. P. Klemens, E. C. Burrows, Y.-K. Chen, R. W. Tkach   +11 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

FEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay, Junjie Xu, Josep Rizo   +2 more
wiley   +1 more source

Optimisation of Lambertian order for indoor non-directed optical wireless communication [PDF]

, 2012
This paper studies the optimised Lambertian order (OLO) of light-emitting diodes (LEDs) for an indoor non-directed line of sight optical wireless communication (NLOS-OWC) systems.
Ghassemlooy, Zabih, H. Le Minh, Z. Ghassemlooy, Minh, Hao Le, Wu, Dehao, D. Wu, Tang, Xuan, Khalighi, Mohammad-Ali, Rajbhandari, Sujan, M. A. Khalighi, S. Rajbhandari, Le Minh, Hoa   +11 more
core   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Research Progress on Carrier-Free Phase-Retrieval Receivers

Photonics
In order to deal with the chromatic dispersion-induced power fading issue for short-reach direct-detection optical fiber communication applications, such as the ever-increasing data-center interconnections (DCIs), optical filed recovery is intensively ...
Yunhe Ma, Meng Xiang, Xiaoxue Gan, Can Wei, Wenzhuo Cheng, Gai Zhou, Jilong Li, Jianping Li, Songnian Fu, Yuwen Qin   +9 more
doaj   +1 more source

Evaluating the involvement of autolysosomes in the nuclear translocation of fluorescent proteins

FEBS Open Bio, EarlyView.
Endogenously expressed fluorescent proteins can be degraded by autophagy and transported to cell nuclei via the nuclear pore complex. But in some cell lines, for example, HeLa cells which are positive for immunoreactivity of a receptor ligand, such as UCN I, in cell nuclei, fusion of autolysosome with the nuclear envelope is involved in the nuclear ...
Keiichi Ikeda
wiley   +1 more source