Results 41 to 50 of about 5,760,414 (306)

Solar Pumped Lasers for Free Space Laser Communication

Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology, 2019
Solar Pumped Lasers (SPL) is a kind of lasers that can transform solar light into laser directly, with the advantages of least energy transform procedure, higher energy transform efficiency, higher reliability, and longer lifetime, which is suitable for use in unattended space system, for solar light is the only form of energy source in space. In order
Changming Zhao, Haiyang Zhang, Zhe Guan, Zitao Cai, Dongbing He, Yongheng Wang   +5 more
openaire   +1 more source

Performance Analysis of Space-to-Ground Downlink for Polarization Shift Keying Optical Communications with a Gaussian-Schell Model Beam

Photonics
Free-space optical communication has emerged as a pivotal technology for space-to-ground downlinks; however, signal degradation caused by atmospheric turbulence continues to pose a significant challenge.
Jiajie Wu, Yuwei Zhang, Qingyan Li, Siyuan Yu, Jianjie Yu   +4 more
doaj   +1 more source

Low Power FPGA Implementation of a Smart Building Free Space Optical Communication System

Photonics, 2022
Free Space Optical (FSO) communication systems have extensively invaded the speed of smart city evolution due to the current surge in demand for wireless communication spots that can match recent challenges due to high technical leaps in smart city ...
Rehab Ali, Hossameldin Eassa, Hesham H. Aly, Mohamed Abaza, Saleh M. Eisa   +4 more
doaj   +1 more source

Melt Pool and Keyhole Behavior Analysis for Deep Penetration Laser Welding [PDF]

, 2010
One usually defines the main characteristic of the welding performances of a given laser system by its “penetration curve” that corresponds to the welding depth as a function of the welding speed Vw for a given set of operating parameters.
R Fabbro, Fabbro, R, FABBRO, Rémy
core   +1 more source

Topology Control of Low-Connection UAV Laser Network with Virtual Nodes

Applied Sciences
Space laser communication technology has advantages such as high bandwidth and low interference, but the limitation of the load capacity of an unmanned aerial vehicle (UAV) makes it difficult for UAV clusters to have sufficient communication links to ...
Pengyu Wang, Qingkui Li, Junkai Yi
doaj   +1 more source

Based on adaptive modulation laser communication multi-microgrids scheduling system

Frontiers in Physics, 2023
In order to improve the data sharing and comprehensive information processing capabilities between multi-microgrids in the power system, the multi-microgrids scheduling system based on laser communication has been proposed.
Ying Chang, Dajun Chang, Li Su
doaj   +1 more source

Direct keyhole laser welding of aluminum alloy AA5754 to titanium alloy Ti6Al4V [PDF]

, 2014
The tensile strength of direct AA5754/Ti6Al4V joints performed by high speed Yb:YAG laser welding is found to be determined by morphology and phase content of dissimilar interface formed between contacting Al-rich and Ti-rich melted zones. Three types of
CICALA, E, Tomashchuk, I, PEYRE, Patrice, Sallamand, P, SALLAMAND, Pierre, TOMASHCHUK, Iryna, GREVEY, D   +6 more
core   +1 more source

Research on underwater wireless dynamic optical communication system based on PPM modulation

Frontiers in Physics, 2023
In order to achieve underwater wireless dynamic optical communication, a laser communication system is proposed based on Pulse Position Modulation (PPM).
Bing Dong, Shoufeng Tong, Peng Zhang, Jiaxing Wang   +3 more
doaj   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

FEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt, Ana‐Maria Sandru, Georg Vucak, Sebastian Didusch, Biljana Riemelmoser, Karin Ehrenreiter, Markus Hartl, Lukas A. Huber, Manuela Baccarini   +8 more
wiley   +1 more source