Results 61 to 70 of about 414,153 (280)

Optimizing Space Telescopes’ Thermal Performance through Uncertainty Analysis: Identification of Critical Parameters and Shaping Test Strategy Development

Aerospace
The integration of uncertainty analysis methodologies allows for improving design efficiency, particularly in the context of instruments that demand precise pointing accuracy, such as space telescopes.
Uxia Garcia-Luis, Alejandro M. Gomez-San-Juan, Fermin Navarro-Medina, Carlos Ulloa-Sande, Alfonso Yñigo-Rivera, Alba Eva Peláez-Santos   +5 more
doaj   +1 more source

Multi-Channel Optical Receiver for Ground-Based Topographic Hyperspectral Remote Sensing

Remote Sensing, 2019
Receiver design is integral to the development of a new remote sensor. An effective receiver delivers backscattered light to the detector while optimizing the signal-to-noise ratio at the desired wavelengths. Towards the goal of effective receiver design,
Sean E. Salazar, Richard A. Coffman
doaj   +1 more source

The First VERITAS Telescope

, 2006
The first atmospheric Cherenkov telescope of VERITAS (the Very Energetic Radiation Imaging Telescope Array System) has been in operation since February 2005. We present here a technical description of the instrument and a summary of its performance.
A. Imran, A. Milovanovic, A. Syson, A.D. Falcone, Aharonian, Aharonian, Bradbury, C. Dowdall, C. Duke, D. Hanna, D. Horan, D. Kieda, D. Petry, D. Steele, D.A. Carter-Lewis, D.A. Williams, Davies, E. Hays, E. Linton, E.K. Little, E.T. Roache, F. Krennrich, F. Pizlo, G. Blaylock, G. Gillanders, G. Gyuk, G. Maier, G. Sleege, G.E. Kenny, G.H. Sembroski, Galbraith, H. Krawczynski, H. Manseri, H.J. Rose, H.M. Badran, Hanna, Hillas, Hinton, Hörandel, I. de la Calle Perez, I. Jung, J. Grube, J. Hall, J. Holder, J. Kildea, J. Knapp, J. Quinn, J.A. Toner, J.H. Buckley, J.P. Finley, J.S. Perkins, K. Gibbs, K. Ragan, K.J. Gutierrez, K.L. Byrum, Kubo, L. Valcarcel, L.F. Fortson, Lessard, Lorenz, M. Pohl, M. Schroedter, M.J. Lang, M.K. Daniel, Mohanty, O. Celik, O.J. Glidewell, P. Cogan, P. Dowkontt, P. Fortin, P. Kaaret, P. Moriarty, P.A. Ogden, P.T. Reynolds, Pühlhofer, R. Mukherjee, R. Wagner, R.A. Ong, R.J. White, R.W. Atkins, S. LeBohec, S.B. Hughes, S.J. Fegan, S.M. Bradbury, S.P. Swordy, S.P. Wakely, T.B. Humensky, T.C. Weekes, V.V. Vassiliev, Vacanti, W. Cui, Weekes, Weekes, Y.C.K. Chow   +93 more
core   +1 more source

Routing Optimization of Cable‐Driven Octopus‐Inspired Manipulators With Minimal Actuation via Genetic Algorithm and Finite Element Method

Advanced Intelligent Systems, EarlyView.
Soft robotic arms are promising for gentle grasping but often rely on bulky actuation systems. This work presents a computational design framework that optimizes tendon number and routing to achieve target grasps with fewer actuators. Validated on an octopus‐inspired underwater arm, the approach enables efficient, underactuated soft manipulators for ...
Michele Martini, Emanuele Solfiti, Alessio Mondini, Emanuela Del Dottore, Alberto Parmiggiani, Edoardo Sinibaldi, Barbara Mazzolai   +6 more
wiley   +1 more source

A Comprehensive Exploration of Contemporary Photonic Devices in Space Exploration: A Review

Photonics
Photonics plays a pivotal role in propelling space exploration forward, providing innovative solutions to address the challenges presented by the unforgiving and expansive realm of outer space.
Muhammad A. Butt
doaj   +1 more source

Recent Results from the MAGIC Telescopes

, 2012
MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov Telescope) is a system of two 17 meters Cherenkov telescopes, sensitive to very high energy (VHE; $> 10^{11}$ eV) gamma radiation above an energy threshold of 50 GeV.
Tibolla, O.
core   +1 more source

Ritchey-Chretien Telescope [PDF]

, 1973
A Ritchey-Chretien telescope is described which was designed to respond to images located off the optical axis by using two transparent flat plates positioned in the ray path of the image.
Amon, M., Rosin, S.
core   +1 more source

High Performance Lyot and PIAA Coronagraphy for Arbitrarily shaped Telescope Apertures

, 2013
Two high performance coronagraphic approaches compatible with segmented and obstructed telescope pupils are described. Both concepts use entrance pupil amplitude apodization and a combined phase and amplitude focal plane mask to achieve full ...
Belikov, Ruslan, Cady, Eric, Guyon, Olivier, Hinz, Philip H., Martinache, Frantz   +4 more
core   +3 more sources

Effect of Binder on Physical Properties of Extruded Activated Carbon and Its Application to Levofloxacin Adsorption

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Bamboo charcoal–based extruded activated carbons were prepared via molding, pre‐oxidation, carbonization, and steam activation, with coal tar, phenolic resin, and their mixtures employed as binders based on practical availability and technical feasibility. This study focused on the regulatory effects of binders on the mechanical properties and
Huitao Jiang, Songlin Zuo
wiley   +1 more source

A Characterization of Cybersecurity Posture from Network Telescope Data [PDF]

, 2016
Data-driven understanding of cybersecurity posture is an important problem that has not been adequately explored. In this paper, we analyze some real data collected by CAIDA's network telescope during the month of March 2013.
Xu, Maochao, Xu, Shouhuai, Zhan, Zhenxin
core