Results 131 to 140 of about 3,130,711 (363)
New Astronomy Reviews, 2001 The WHT is unusually well-placed for exploitation of adaptive-optics (AO) technology. The site seeing is excellent (median 0.7 arcsec), dome seeing is negligible, and preliminary studies indicate that most of the atmospheric seeing originates in a well-defined layer at low altitude, which bodes well for future laser-guide-star AO. The Durham group have
openaire +3 more sources
Le Journal de Physique Colloques, 1980 A major consideration in most laser resonator designs for high power is to obtain the maximum far field irradiance on a target. Various design approaches have emerged in recent years to optimize the far-field irradiance by utilizing different resonator concepts for the purpose of obtaining the best mode control and near field beam quality.
J. M. Spinhirne, R. H. Freeman, D. Anafi
openaire +2 more sources
Identification of inhibitors of the Salmonella FraB deglycase, a drug target
FEBS Open Bio, EarlyView.A high‐throughput screen was used to identify inhibitors of Salmonella FraB, a drug target. Characterization of top hits (identified after an additional counter screen) revealed that some triazolidines, thiadiazolidines, and triazolothiadiazoles are mixed‐type inhibitors of FraB.
Jamison D. Law +6 more
wiley +1 more source
Correlated Photon Lidar Based on Time-Division Multiplexing
PhotonicsSingle-photon lidar (SPL) exhibits high sensitivity, making it particularly suitable for detecting weak echoes over long distances. However, its susceptibility to background noise necessitates the implementation of advanced filtering techniques and ...
Yun Jiang +8 more
doaj +1 more source
Adaptive Optics Simulations for Siding Spring [PDF]
, 2012 Using an observational derived model optical turbulence profile (model-OTP) we have investigated the performance of Adaptive Optics (AO) at Siding Spring Observatory (SSO), Australia. The simulations cover the performance for AO techniques of single conjugate adaptive optics (SCAO), multi-conjugate adaptive optics (MCAO) and ground-layer adaptive ...
arxiv +1 more source
Establishment and biological characterization of radioresistant colorectal cancer cell lines
FEBS Open Bio, EarlyView.Under ionizing radiation exposure, radiation‐sensitive cancer cells exhibit oxidative stress and DNA damage, while radiation‐resistant cancer cells exhibit strong antioxidant properties and DNA damage repair. Radiotherapy resistance is a major cause of recurrence and metastasis in colorectal cancer (CRC).
Tian‐Yin Qu +10 more
wiley +1 more source
Adaptive shaping for generation of optical arbitrary waveform [PDF]
arXiv, 2020 A new adaptive shaping method that can generate arbitrary optical waveforms with folded-type or fan-type birefringent variable shapers is proposed in this paper. Automatic arbitrary laser temporal shaping of picosecond and femtosecond lasers in shapers with material dispersion, nonidentical birefringent retarders are also studied and results are ...
arxiv
Adaptive optics for high-resolution imaging
Nature Reviews Methods Primers, 2021 K. Hampson +6 more
semanticscholar +1 more source
FEBS Open Bio, EarlyView.Liver‐specific knockout of N6‐methyladenosine (m6A) methyltransferase METTL3 significantly accelerated hepatic tumor initiation under various oncogenic challenges, contrary to the previously reported oncogenic role of METTL3 in liver cancer cell lines or xenograft models. Mechanistically, METTL3 deficiency reduced m6A deposition on Manf transcripts and
Bo Cui +15 more
wiley +1 more source
Sub-Millisecond Phase Retrieval for Phase-Diversity Wavefront Sensor
Sensors, 2020 We propose a convolutional neural network (CNN) based method, namely phase diversity convolutional neural network (PD-CNN) for the speed acceleration of phase-diversity wavefront sensing.
Yu Wu +3 more
doaj +1 more source