Results 41 to 50 of about 13,205,388 (308)

Hybrid SPAD/PD Receiver for Reliable Free-Space Optical Communication

IEEE Open Journal of the Communications Society, 2020
Free-space optical (FSO) communication provides wireless optical connectivity with high data rates and low-cost implementation; however, its performance is strongly influenced by the power attenuation due to the infrequent adverse weather conditions ...
Shenjie Huang, Majid Safari
doaj   +1 more source

An optically powered, free space optical communications receiver

2008 IEEE International Symposium on Circuits and Systems (ISCAS), 2008
Two of the key components of sensor motes are a power source and a communications receiver. One approach to creating very small motes is to use free space optical communication and to scavenge power from the optical downlink. In this paper photodiodes are described that were made on a standard CMOS process and generate electrical power from the ...
Liu, J, Faulkner, G, Collins, S, O'Brien, D, Elston, S   +4 more
openaire   +3 more sources

COGNITIVE MULTI-USER FREE SPACE OPTICAL COMMUNICATION [PDF]

, 2020
Increasing deployment of terrestrial, aerial, and space-based assets designed with more demanding services and applications is dramatically escalating the need for high capacity, high data-rate, adaptive, and flexible communication networks.
Aveta, Federica
core  

Spatial biology in cancer epigenetics

Molecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Analysis and evaluation of optimum wavelengths for free-space optical transceivers [PDF]

, 2010
The objective of this paper is to analyse and present the latest results obtained for free-space optics (FSO) within the EU COST Action IC-0802 and within the European Space Agency (ESA) contract.
Z. Ghassemlooy, E. Leitgeb, M. S. Awan, M. Wittig, T. Plank, Wittig, Manfred, Plank, Thomas, Ozek, Faruk, Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, F. Ozek, P. Brandl, Awan, Muhammad, Brandl, Paul, Leitgeb, Erich, W. Popoola   +15 more
core   +1 more source

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source

Optical Wireless Communications: Illuminating the Path for Cooper’s Law

IEEE Open Journal of the Communications Society
The increasing proliferation of internet-connected devices, together with the widespread reliance on wireless communication in daily activities, are limiting the capabilities of the radio frequency (RF) spectrum to meet data traffic demands.
Mahmoud Wafik Eltokhey, Muhammad Salman Bashir, Othman Isam Younus, Zabih Ghassemlooy, Harald Haas, George K. Karagiannidis, Shivani Rajendra Teli, Stanislav Zvanovec, Mohammad-Ali Khalighi, Zhenyu Charlus Zhang, Steve Hranilovic, Maite Brandt-Pearce, Jean-Paul Linnartz, Abderrahmen Trichili, Hyunchae Chun, Dominic O'Brien, Murat Uysal, Jian Song, Murat Yuksel, Hany Elgala, Zhengyuan Xu, Nan Chi, Takaya Yamazato, Chi-Wai Chow, Boon S. Ooi, Mohamed-Slim Alouini   +25 more
doaj   +1 more source

Adaptive symbol-rate free-space-optical communications [PDF]

2013 Australian Communications Theory Workshop (AusCTW), 2013
Free space optical communications through fading atmospheric channels can achieve improved throughput by using adaptive transmission techniques. This paper considers the use of adaptive symbol-rate and transmit-power methods. We use an idealised model of channel coding that assumes zero errors can be achieved above some SNR threshold and adjust the ...
William G. Cowley, Khoa D. Nguyen, Dirk Giggenbach   +2 more
openaire   +1 more source

Free-space optical communication employing subcarrier modulation and spatial diversity in atmospheric turbulence channel [PDF]

, 2008
An expression for the bit error rate of a multiple subcarrier intensity-modulated atmospheric optical communication system employing spatial diversity is derived. Spatial diversity is used to mitigate scintillation caused by atmospheric turbulence, which
Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, Allen, John, Popoola, W, Popoola, Wasiu O., Leitgeb, Erich, Gao, S, Gao, Steven, Allen, Joe, Ghassemlooy , Zabih   +9 more
core   +1 more source

Dual native G‐quadruplex folding is associated with chromatin looping at the MYC locus

FEBS Open Bio, EarlyView.
BG4‐detectable G‐quadruplex (G4) in HaCaT and NHEK keratinocytes identified folded and unfolded G4s enriched at promoters/TSSs and active enhancers, whereas unfolded G4s also overlapped weak/poised enhancers. At MYC–PVT1, 3C‐qPCR detected enhancer–promoter looping only when G4s were simultaneously folded at both regulatory elements under native ...
Dieila Giomo de Lima, Gustavo Narvaes Guimarães, Emilyane de Oliveira Santana Amaral, Bianca Caroline Figueiredo Bianco, Manuel Jara‐Espejo, Sérgio Roberto Peres Line, Ana Paula de Souza, Aline Cristiane Planello   +7 more
wiley   +1 more source