Results 91 to 100 of about 10,855 (288)

Automated selection of suitable atmospheric calibration sites for satellite imagery

open access: yes, 2010
Ground calibration targets (GCTs) play a vital role in atmospheric correction of satellite sensor data in the optical region, but selecting suitable targets is a subjective and time-consuming task.
Wilson, R.T., Milton, E.J.
core  

Radiometric Wireless Sensor Network Monitoring of Partial Discharge Sources in Electrical Substations

open access: yes, 2015
A wireless sensor network (WSN) with the potential to monitor and locate partial discharge (PD) in high-voltage electricity substations using only received signal strength (RSS) is proposed.
Jaber, Adel   +27 more
core   +1 more source

Application of Multi‐Method Dating for Understanding the Gravettian North of Moravia, Central Europe

open access: yesArchaeometry, EarlyView.
ABSTRACT This article presents the results of integrating three methods to assess the age of the Upper Palaeolithic site of Pietraszyn 11 (SW Poland), close to the Moravian Gate. Sediment chronology determined using optically stimulated luminescence produced promising, yet ambiguous results (51.0 ± 3.7 to 20.3 ± 0.7 ka).
A. Wiśniewski   +16 more
wiley   +1 more source

DLR's New Traceable Radiance Standard “RASTA”

open access: yes, 2012
The German Aerospace Center (DLR) operates the Calibation Home Base (CHB) as a facility for the calibration of airborne imaging spectrometers such as APEX, HySpex and ROSIS, and for field spectrometers.
Gege, Peter   +4 more
core  

Democratising Multi‐Projector Displays

open access: yesComputer Graphics Forum, EarlyView.
Spatially augmented reality (SAR) transforms large, surround, collaborative experiences out of VR/AR headsets to the real world by merging content from projectors with the physical environment. This detailed state‐of‐the‐art survey reports on the advancements in multi‐projector aggregation and hardware technologies used to achieve SAR and build ...
Aditi Majumder, Muhammad Twaha Ibrahim
wiley   +1 more source

Quantum Radiometric Calibration

open access: yes
Optical quantum computing, as well as quantum communication and sensing technology based on quantum correlations are in preparation. These require photodiodes for the detection of about 10^16 photons per second with close to perfect quantum efficiency. Already the radiometric calibration is a challenge.
Albers, Leif   +2 more
openaire   +2 more sources

An Airborne Gamma Ray Survey of Parts of SW Scotland in February 1993. Final Report [PDF]

open access: yes, 1993
An airborne gamma ray survey was conducted for the Scottish Office Environment Department of coastal and inland parts of SW Scotland to define existing background levels, to locate features worthy of further attention, and to demonstrate the emergency ...
Sanderson, D.   +5 more
core  

Limited elephant impacts on baobabs despite increasing elephant densities in a newly established protected area

open access: yesConservation Science and Practice, EarlyView.
Researchers combined aerial and ground surveys to map baobab distribution and assess elephant herbivory impacts on baobabs across Karingani Game Reserve, Mozambique. Researchers found that aerial surveys were an effective tool for mapping baobabs and that baobabs were more likely to occur closer to permanent water, at lower elevations, and in areas ...
Audrey Y. Chin   +4 more
wiley   +1 more source

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