Results 41 to 50 of about 1,169,905 (342)
Volatile-Rich Circumstellar Gas in the Unusual 49 Ceti Debris Disk
, 2014 We present Hubble Space Telescope STIS far-UV spectra of the edge-on disk around 49 Ceti, one of the very few debris disks showing sub-mm CO emission.
Grady, Carol A. +4 more
core +1 more source
Pressure Support vs. Thermal Broadening in the Lyman-alpha Forest II: Effects of the Equation of State on Transverse Structure [PDF]
, 2010 We examine the impact of gas pressure on the transverse coherence of high-redshift (2
Alcock +48 more
core +3 more sources
International Journal of Distributed Sensor Networks, 2020 As the key technology for Internet of things, wireless sensor networks have received more attentions in recent years. Mobile localization is one of the significant topics in wireless sensor networks.
Nan Hu +5 more
doaj +1 more source
Measurements and Models of 915 MHz LoRa Radio Propagation in an Underground Gold Mine
Sensors, 2022 Underground mining increasingly relies on wireless communications for its operations. The move to automating many underground mining processes makes an understanding of the propagation characteristics of key wireless technologies underground a topic of ...
Philip Branch
doaj +1 more source
Cosmological Constraints from the Anisotropic Clustering Analysis using BOSS DR9
, 2013 Our observations of the Universe are fundamentally anisotropic, with data from galaxies separated transverse to the line of sight coming from the same epoch while that from galaxies separated parallel to the line of sight coming from different times ...
Linder, Eric V. +4 more
core +1 more source
Capacity of Line-of-Sight MIMO Channels [PDF]
2020 IEEE International Symposium on Information Theory (ISIT), 2020 H. Do and N. Lee are supported by the Samsung Research Funding & Incubation Center of Samsung Electronics under Project SRFC-IT1702-04. Prof. Lozano is supported by the European Research Council under the H2020 Framework Programme/ERC grant agreement 694974, and by MINECO’s Projects RTI2018-102112 and RTI2018-101040.
Do, Heedong, Lee, Namyoon, Lozano, Angel
openaire +2 more sources
Empowering IoT: leveraging data sensor communication with LoRAWAN in diverse environments
Acta PolytechnicaThe Internet of Things (IoT) connects countless devices, such as sensors and actuators, necessitating an efficient long-range communication technology.
Noprianto Noprianto +4 more
doaj +1 more source
Non-line of Sight Transient Rendering
Jornada de Jóvenes Investigadores del I3A, 2022 Non-line of sight imaging reconstructs hidden geometry using time-resolved measurements of indirect diffuse reflections emitted by a laser. To help develop new applications, we simulate light transport in these occluded scenes and introduce a set of simple, yet effective subpath sampling techniques for efficiency, with an open-source implementation.
Royo, Diego +3 more
openaire +3 more sources
Optimal Constrained Wireless Emergency Network Antennae Placement [PDF]
, 2018 With increasing number of mobile devices, newly introduced smart devices, and the Internet of things (IoT) sensors, the current microwave frequency spectrum is getting rapidly congested.
Gaikwad, Swapnil Mohan
core +1 more source
CO Line Emission and Absorption from the HL Tau Disk: Where is all the dust?
, 2005 We present high-resolution infrared spectra of HL Tau, a heavily embedded young star. The spectra exhibit broad emission lines of hot CO gas as well as narrow absorption lines of cold CO gas. The column density for this cooler material (7.5+/-0.2 x 10^18
Carr J. S. +7 more
core +1 more source