Results 101 to 110 of about 33,132 (307)

Adaptive optics for laser space debris removal [PDF]

, 2016
Space debris in low Earth orbit below 1500km is becoming an increasing threat to satellites and spacecrafts. Radar and laser tracking are currently used to monitor the orbits of thousands of space debris and active satellites are able to use this ...
Rigaut, Francois, Conan, Rodolphe, d'Orgeville, Celine, Ritchie, Ian, Smith, C, Dawson, Murray, Bennet, Francis, Paulin, Nicolas, Uhlendorf, Kristina, Price, Ian   +9 more
core   +1 more source

Infrared Tall Patch-Matrix Model for Single-Frame Low-Contrast Small Target Detection

Applied Sciences
Infrared small target detection (IRSTD) task is vital in practical applications. It is still a challenge when the target size is very small and the local signal-to-noise ratio is particularly low.
Yujia Liu, Wei Tang, Xuying Hao, Tao Lei
doaj   +1 more source

Finding novel vulnerabilities of hypomorphic BRCA1 alleles

Molecular Oncology, EarlyView.
Synthetic lethality screens performed to identify novel vulnerabilities often model complete gene loss, thereby overlooking patient‐derived hypomorphic mutations. In this study, we have performed genome‐wide CRISPR screens on BRCA1 hypomorphic mutations, showing BRCA1I26A behaves like wild‐type, while BRCA1R1699Q mimics deficiency. Furthermore, we have
Anne Schreuder, Klaas de Lint, Hồ Mỹ Phúc Võ, Mariana M. Góis, Rosalie A. Kampen, Marta San Martin Alonso, Ilse Nootenboom, Veronica Garzero, Tiemen J. Wendel, Rob M. F. Wolthuis, Sylvie M. Noordermeer   +10 more
wiley   +1 more source

MAORY: adaptive optics module for the E-ELT [PDF]

, 2016
MAORY is one of the four instruments for the E-ELT approved for construction. It is an adaptive optics module offering two compensation modes: multi-conjugate and single-conjugate adaptive optics. The project has recently entered its phase B.
FANTINEL, Daniela, FIORENTINO, Giuliana, FOPPIANI, ITALO, Magnard, Y., Oberti, S., Felini, C., Roussel, F., MANNUCCI, FILIPPO, Sztefek, M. -H., BRIGUGLIO PELLEGRINO, RUNA ANTONIO, Brissaud, O., Roux, A., ESPOSITO, Simone, DIOLAITI, EMILIANO, Moulin, T., PUGLISI, Alfio Timothy, Stadler, E., Lafrasse, S., Michaud, L., DE PASCALE, Marco, Hénault, F., Le Louarn, M., DI RICO, Gianluca, FONTANA, Adriano, ABICCA, Renata, LOMBINI, MATTEO, RIVA, Marco, GIRO, Enrico, Rabou, P., Fini, L., FERRUZZI, Debora, Rochat, S., La Penna, P., Carlotti, A., MORGANTE, GIANLUCA, RICCIARDI, SARA, Jocou, L., Mapelli, M., Zerbi, F. M., Lauria, M., Marchetti, E., Delboulbé, A., XOMPERO, MARCO, BILIOTTI, Valdemaro, GHIGO, Mauro, Maurel, D., Cosentino, G., le Coarer, E., SCHREIBER, LAURA, ARCIDIACONO, CARMELO, Kerber, F., Gluck, L., Correia, J. -J., Ramsay, S., Giordano, C., SPAVONE, MARILENA, AGAPITO, GUIDO, MAIORANO, Elisabetta, Vérinaud, C., CASCONE, Enrico, PARESCHI, Giovanni, BONAGLIA, MARCO, DE CAPRIO, VINCENZO, SALASNICH, Bernardo, De Rosa, A., Ventura, N., BREGOLI, Giovanni, CORTECCHIA, Fausto, CILIEGI, Paolo, BARUFFOLO, Andrea, CARBONARO, LUCA, BELLAZZINI, Michele, BUSONI, LORENZO, RICCARDI, Armando, Feautrier, P., Patti, Mauro, SARACCO, Paolo, DEL VECCHIO, Ciro, RAGAZZONI, Roberto   +78 more
core   +1 more source

Quantitative assessment of parameter requirements in a division of focal plane polarimeter

Scientific Reports
The division of focal plane polarimeter (DoFP) is a widely utilized instrument for target detection and recognition, owing to its excellent real-time performance and compact configuration.
Bowen Lian, Jingpeng Yang, Ao Tang, Yawei Xiao, Naiting Gu   +4 more
doaj   +1 more source

Adaptive SMF Coupling Based on Precise-Delayed SPGD Algorithm and Its Application in Free Space Optical Communication

IEEE Photonics Journal, 2018
The adaptive coupling of laser beam from space into single-mode fiber (SMF) plays an important role in the fiber-based free space optical communication technology.
Guan Huang, Chao Geng, Feng Li, Yan Yang, Xinyang Li   +4 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Modeling the adaptive optics systems on the Giant Magellan Telescope

, 2016
Modeling adaptive optics (AO) systems is crucial to understanding their performance and a key aid in their design. The Giant Magellan Telescope (GMT) is planning three AO modes at first light: natural guide star AO, ground-layer AO and laser tomography ...
Rigaut, Francois, Garcia-Rissman, Aurea, McLeod, Brian A, van Dam, Marcos Alejandro, Codona, Johanan L, Hart, Michael, Hinz, Philip, Bouchez, Antonin H, Johns, Matt W, Shectman, Stephen   +9 more
core   +1 more source

Control Bandwidth Promotion of Adaptive Fiber-Optics Collimator and Its Application in Coherent Beam Combination

IEEE Photonics Journal, 2018
Adaptive fiber-optics collimator (AFOC) plays an important role in the coherent beam combining (CBC) systems. To improve the control bandwidth, the frequency characteristics of AFOC are measured, and an accurate transfer function model is established ...
Guan Huang, Chao Geng, Feng Li, Jiaying Liu, Xinyang Li   +4 more
doaj   +1 more source