Results 51 to 60 of about 32,801 (229)

SMTC Configuration and Window Adjustment Strategies for Beam Hopping in NR‐NTN

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Beam hopping is an effective transmission strategy for nonterrestrial networks (NTNs), enabling satellites to allocate limited power and spectrum resources across different geographical regions over time. However, in NR‐based NTN systems, beam hopping complicates synchronization monitoring because synchronization signal block (SSB) arrivals ...
Hee Wook Kim, Kyungrak Lee, Joon Gyu Ryu
wiley   +1 more source

Swath sonar bathymetry during SONNE cruise SO196 with links to multibeam raw data files

open access: yes, 2008
Multibeam data were measured during R/V Sonne cruise SO-196 (2008-03-02 to 2008-03-27) along survey profiles, transits and during stationary work. Data were achieved at the Okiwana Trough, particularly in the area of Yonaguni Knoll and Hatoma Knoll. The
Schenke, Hans Werner, Rehder, Gregor
core   +1 more source

RRS James Cook Cruise 35, 7-19 Jun 2009. Sidescan sonar mapping of the Whittard Canyon, Celtic Margin [PDF]

open access: yes, 2009
James Cook cruise 035 was aimed at the detailed mapping of the Whittard Canyon system along the Celtic Margin (NE Atlantic). In 12 days, >700 km of track-lines were surveyed with the Towed Ocean Bottom Instrument (TOBI, carrying a 30 kHz sidescan ...
Huvenne, V.A.I.
core   +1 more source

Pockmark Distribution and Genesis in the Mediterranean and Black Seas: A Regional Synthesis

open access: yesGeosciences
Pockmarks are ubiquitous seafloor depressions formed by the fluid/gas seepage through marine sediments, with implications for geohazards, benthic ecosystems, and climate-related processes.
Daniele Spatola   +10 more
doaj   +1 more source

Ligand‐Mediated Nuclearity Tuning of Tin Oxo Clusters for Advanced Lithography

open access: yesSmall, EarlyView.
A tailored design strategy for Sn‐based inorganic photoresists is demonstrated through precise ligand modulation to tune cluster nuclearity. Modulating the nuclearity dictates distinct exposure pathways and stochastic reaction volumes for each cluster system.
Seong‐Ji Ha   +5 more
wiley   +1 more source

Raw multibeam EM122 data: transits of METEOR cruise M119 (Atlantic)

open access: yes, 2019
Latitude/Longitude extracted from DSHIP. Data acquisition was performed using a multibeam sonar system Simrad EM-122 from Kongsberg. Raw data are delivered within Simrad current multibeam vendor format. SIMRAD raw data can be processed i.e.
Peter Brandt (6975509)   +3 more
core   +1 more source

Sub-Terahertz Metallic Multibeam Antenna Based on a Sliding Aperture Technique

open access: yesIEEE Transactions on Antennas and Propagation
This article presents a fully metallic waveguide- based multibeam antenna operating at the band from 410 to 480 GHz. The multibeam function is achieved based on the sliding aperture technique.
Hongda Lu   +5 more
semanticscholar   +1 more source

A Digital Atlas of Human Ultrastructure

open access: yesSmall, EarlyView.
An interactive resource with ultrastructural data of human organs. Analyse organs from sub‐millimeter up to the nanometer range of macromolecules in a similar way as Google‐earth: https://www.nanotomy.org/OA/HumanAtlas/. ABSTRACT Electron microscopy (EM) is the method to visualize the building blocks of life in organs and tissues at biomolecular ...
Anouk H. G. Wolters   +4 more
wiley   +1 more source

Raw multibeam EM122 data: transits of METEOR cruise M144 (Mediterranean Sea)

open access: yes, 2018
Latitude/Longitude extracted from DSHIP. Data acquisition was performed using a multibeam sonar system Simrad EM-122 from Kongsberg. Raw data are delivered within Simrad current multibeam vendor format. SIMRAD raw data can be processed i.e.
Jörg Pross (6961943)   +3 more
core   +1 more source

A Low Complexity $16\times16$ Butler Matrix Design Using Eight-Port Hybrids

open access: yesIEEE Access, 2019
Beamforming networks such as Butler Matrices are important for multibeam array antenna applications. The challenge for Butler Matrix design is that their complexity increases with the number of ports.
Qingling Yang   +7 more
doaj   +1 more source

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