Browsing by Title
Now showing items 15986-16005 of 24236
-
Optical photometric GTC/OSIRIS observations of the young massive association Cygnus OB2
(2012-10-01)In order to fully understand the gravitational collapse of molecular clouds, the star formation process, and the evolution of circumstellar disks, these phenomena must be studied in different Galactic environments with a ... -
Optical properties of aerosol mixtures derived from sun-sky radiometry during SAMUM-2
(2011-09)The SAMUM-2 experiment took place in the Cape Verde islands in January-February 2008. The colocated ground-based and airborne instruments allow the study of desert dust optical and microphysical properties in a closure ... -
Optical properties of the Indo-Asian haze layer over the tropical Indian Ocean
(2003-01)[1] Multiwavelength backscatter and extinction profiling was performed with a unique aerosol Raman lidar at Hulhule (4degreesN, 73degreesE), Maldives, as part of the Indian Ocean Experiment (INDOEX) between February 1999 ... -
Optical rise-time measurements on KD*P transmission-line Pockels cells
(1978)A technique has been developed for determining the optical-transmission rise times of subnanosecond switching KD*P electro-optic modulators. Optical streak-camera data with 15-psec overall resolution and 30-psec resolution ... -
Optical Spectropolarimetry of Broad Line Active Galaxies
(Astronomical Society of the Pacific, 1999)We present new optical spectropolarimetry of two bright type 1 AGNs. The observations are part of a project on broad line active galaxies in which, through data analysis and modelling, we aim to identify the polarization ... -
Optical spectroscopy of the candidate luminous white dwarf in the young Large Magellanic Cloud cluster NGC 1818
(1999)An optical spectrum of the Elson et al. (1998) candidate luminous white dwarf in the young LMC cluster NGC1818 shows conclusively that it is not a degenerate star. A model atmosphere fit gives Teff 31,500K and log g 4.4, ... -
Optical waveguides by diffusion in II-VI compounds
(1972)Planar optical waveguides have been made by sealed ampoule diffusion of Cd and Se into ZnS and Cd into ZnSe. Three-dimensional diffused guides of Cd-diffused ZnSe have been made by using a masking layer of evaporated ... -
The optically unbiased GRB host (tough) survey. III : Redshift distribution
(2012-06-10)We present 10 new gamma-ray burst (GRB) redshifts and another five redshift limits based on host galaxy spectroscopy obtained as part of a large program conducted at the Very Large Telescope (VLT). The redshifts span the ... -
Optimal analog wavelet bases construction using hybrid optimization algorithm
(2016-12-01)An approach for the construction of optimal analog wavelet bases is presented. First, the definition of an analog wavelet is given. Based on the definition and the least-squares error criterion, a general framework for ... -
Optimal Control Design For Robust Fuzzy Friction Compensation in a Robot Joint
(2009)This paper presents a methodology for the compensation of nonlinear friction in a robot joint structure based on a fuzzy local modeling technique. To enhance the tracking performance of the robot joint, a dynamic model is ... -
Optimal Cooperative Spectrum Sensing for Cognitive Radio
(2016-09-08)The rapid increasing interest in wireless communication has led to the continuous development of wireless devices and technologies. The modern convergence and interoperability of wireless technologies has further increased ... -
Optimal Coordination of Directional Overcurrent Relays Using Hybrid Firefly–Genetic Algorithm
(2023-07-12)The application of directional overcurrent relays (DOCRs) plays an important role in protecting power systems and ensuring their safe, reliable, and efficient operation. However, coordinating DOCRs involves solving a highly ... -
Optimal design of climate change policies through the EU's rural development policy : Final Report
(European Commission, 2013-02-28)In 2013 the current Rural Development Programme (RDP) comes to an end and consequently consultations have been initiated to develop the programme post-2013. This presents an opportunity to develop more holistic RDP measures ... -
Optimal Design of Environmental-Friendly Hybrid Power Generation System
(Springer Nature, 2021-04-30)Combination of both renewable and fuel-based generation systems is an advantageous approach to develop off-grid distributed power plants. This approach requires evaluation of the techno-economic potential of each source ...