Results 61 to 70 of about 292,962 (302)

Deep search for companions to probable young brown dwarfs [PDF]

, 2012
We have obtained high contrast images of four nearby, faint, and very low mass objects 2MASSJ04351455-1414468, SDSSJ044337.61+000205.1, 2MASSJ06085283-2753583 and 2MASSJ06524851-5741376 (here after 2MASS0435-14, SDSS0443+00, 2MASS0608-27 and 2MASS0652-57)
A. Boccaletti, A.-M. Lagrange, Ahmic, B. Zuckerman, Biller, Bonnefoy, Bouy, Brandeker, Burgasser, Béjar, C. Dumas, Chabrier, Chauvin, Chauvin, Chauvin, Cruz, Cruz, D. Mouillet, Delorme, Dupuy, Dupuy, Faherty, Faherty, G. Chauvin, I. Song, J. Faherty, J.-L. Beuzit, Jayawardhana, K. Cruz, Kirkpatrick, Kirkpatrick, Konopacky, Luhman, M. Bonnefoy, M. S. Bessell, Martín, McCaughrean, P. Lowrance, Reid, Reiners, Rice, Todorov, Udry, Zapatero Osorio   +43 more
core   +4 more sources

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

FADet: A Frequency-Aware Detection Framework for Infrared Small Target Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Infrared small target detection (IRSTD) remains a critical yet highly challenging task in the field of object detection. Due to the tiny target size and the absence of rich texture information, general-purpose detectors often suffer substantial ...
Dan Feng, Jian Xu, Ke Li, Zhi Ma, Wen Li, Di Wang   +5 more
doaj   +1 more source

Infrared Small Target Detection Based on Spatial-Temporal Enhancement Using Quaternion Discrete Cosine Transform

IEEE Access, 2019
Infrared small target detection plays an important role in the infrared search and track system. However, infrared small target images often suffer from low contrast.
Ping Zhang, Xiaowei Wang, Xiaoyang Wang, Chun Fei, Zhengkui Guo   +4 more
doaj   +1 more source

Infrared Small Target Detection Utilizing the Enhanced Closest-Mean Background Estimation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Background estimation is an efficient infrared (IR) small target detection method. However, to deal with unknown targets, the estimation window in existing algorithms should be adjusted to perform multiscale detection and requires a lot of calculations ...
Jinhui Han, Chengyin Liu, Yuchun Liu, Zhen Luo, Xiaojian Zhang, Qifeng Niu   +5 more
doaj   +1 more source

Large Scale Structure traced by Molecular Gas at High Redshift

, 2008
We present observations of redshifted CO(1-0) and CO(2-1) in a field containing an overdensity of Lyman break galaxies (LBGs) at z=5.12. Our Australia Telescope Compact Array observations were centered between two spectroscopically-confirmed z=5.12 ...
Baker, Bouwens, Cooke, Elizabeth R. Stanway, Heger, Klamer, Laura S. Douglas, Luke J. M. Davies, Malcolm N. Bremer, Mark Birkinshaw, Matthew D. Lehnert, Prochaska, Smail, Smail, Steidel, Zwaan   +15 more
core   +1 more source

Gamma ray and infrared emission from the M87 jet and torus [PDF]

, 2003
The existence of intrinsic obscuration of Fanaroff-Riley I objects is a controversial topic. M87, the nearest such object, is puzzling in that although it has very massive central black hole it has a relatively low luminosity, suggesting it is in a ...
Donea, A. -C., Protheroe, R. J.
core   +3 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

ISPANet: A Pyramid Self-Attention Network for Single-Frame High-Resolution Infrared Small Target Detection With a Large-Scale Dataset SHR-IRST

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In recent years, the imaging resolution of infrared detection equipment has gradually increased, and higher resolution infrared detection equipment has been used in various fields.
Wenjing Wang, Chengwang Xiao, Haofeng Dou, Ruixiang Liang, Huaibin Yuan, Guanghui Zhao, Zhiwei Chen, Yuhang Huang   +7 more
doaj   +1 more source

A Difference-Based Local Contrast Method for Infrared Small Target Detection Under Complex Background

IEEE Access, 2019
Infrared small target detection under complex background is of great significance in the field of remote sensing, such as optical remote sensing, infrared precise guidance, infrared surveillance, and night navigation.
Kai Zhang, Ke Yang, Shaoyi Li, Hai-Bao Chen   +3 more
doaj   +1 more source