Results 41 to 50 of about 428,797 (300)

Modeling of GPS total electron content over the African low-latitude region using empirical orthogonal functions [PDF]

Annales Geophysicae, 2019
In this paper, an empirical total electron content (TEC) model and trends in the TEC over the African low-latitude region are presented. GPS-derived TEC data from Malindi, Kenya (geographic coordinates 40.194∘ E, 2.996∘ S), and global ...
G. Andima, E. B. Amabayo, E. B. Amabayo, E. Jurua, P. J. Cilliers   +4 more
doaj   +1 more source

Effects of the passage of Comet C/2013 A1 (Siding Spring) observed by the Shallow Radar (SHARAD) on Mars reconnaissance orbiter [PDF]

, 2015
The close passage of Comet C/2013 A1 (Siding Spring) to Mars provided a unique opportunity to observe the interaction of cometary materials with the Martian ionosphere and atmosphere using the sounding radar SHARAD (SHAllow RADar) aboard Mars ...
Anthony Egan, Benna, Bruce A. Campbell, Campbell, Campbell, Cartacci, Croci, Daniel Nunes, Fabrizio Bernardini, Garner, Grebowsky, Gronoff, Gurnett, Jeffrey J. Plaut, Kelley, Kelly, Marco Restano, Pesnell, Restano, Roberto Seu, Roger J. Phillips, Safaeinili, Safaeinili, Schneider, Seu, Seu, Tricarico, Withers, Yelle, Yonggyu Gim   +29 more
core   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

MONITORING IONOSPHERIC VARIATION FOR A DEFINITE PERIOD TIME IN TURKEY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Ionosphere has been studied by a number of scientists in recent years. Since GPS observations cannot provide TEC value directly, it can be estimated from combination of observations.
S. Inyurt, C. Mekik, O. Yildirim
doaj   +1 more source

Testing of Milliwatt Power Source Components [PDF]

, 2003
A milliwatt power source (MPS) has been developed to satisfy the requirements of several potential solar system exploration missions. The MPS is a small power source consisting of three major components: a space qualified heat source (RHU), a thermopile
Allen, D., Anatychuk, L., Bass, J. C., Borshchevsky, A., Caillat, T., Elsner, N., Fleurial, J.-P., Ghamaty, S., McBirney, T., Mondt, J., Nesmith, B., Snyder, G. Jeffrey, Zoltan, A.   +12 more
core  

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

Photo2Video: Semantic-Aware Deep Learning-Based Video Generation from Still Content

Journal of Imaging, 2022
Applying machine learning (ML), and especially deep learning, to understand visual content is becoming common practice in many application areas. However, little attention has been given to its use within the multimedia creative domain.
Paula Viana, Maria Teresa Andrade, Pedro Carvalho, Luis Vilaça, Inês N. Teixeira, Tiago Costa, Pieter Jonker   +6 more
doaj   +1 more source

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

Morphology of GPS and DPS TEC over an equatorial station: validation of IRI and NeQuick 2 models [PDF]

Annales Geophysicae, 2018
We investigated total electron content (TEC) at Ilorin (8.50° N 4.65° E, dip lat. 2.95) for the year 2010, a year of low solar activity in 2010 with Rz = 15.8.
O. O. Odeyemi, J. Adeniyi, O. Oladipo, O. Olawepo, I. Adimula, E. Oyeyemi   +5 more
doaj   +1 more source

Negative Thermal Expansion Coefficient of Graphene Measured by Raman Spectroscopy

, 2011
The thermal expansion coefficient (TEC) of single-layer graphene is estimated with temperature-dependent Raman spectroscopy in the temperature range between 200 and 400 K.
Allen M. J., Avouris Ph., Bailey A. C., Balandin A. A., Bao W., Barrera G. D., Bonaccorso F., Bonini N., Cai W., Calizo I., Calizo I., Chen S., Duhee Yoon, Faugeras C., Ferralis N., Ferrari A. C., Frank O., Geim A. K., Guinea F., Gupta A., Huang M., Huang M., Hyeonsik Cheong, Jiang J.-W., Lee C., Lee J.-U., Levy N., Lin J., Malard L. M., Mohiuddin T. M. G., Mohr M., Mounet N., Novoselov K. S., Peres N. M. R., Pisana S., Ryu S., Seol J. H., Steward E. G., Yan J., Yoon D., Yoon D., Young-Woo Son, Zakharchenko K. V., Zhang Y.   +43 more
core   +1 more source