Results 31 to 40 of about 35,629,504 (153)

Estimating Rice Leaf Greenness (SPAD) Using Fixed-Point Continuous Observations of Visible Red and Near Infrared Narrow-Band Digital Images

Plant Production Science, 2012
A narrow-band dual camera system demonstrated a new close-range sensing technique to seasonally track trends in leaf greenness in rice paddies. A weatherproof digital imaging system for the visible red (RED, 620−650 nm) and near infrared band (NIR, 820 ...
Michio Shibayama, Toshihiro Sakamoto, Eiji Takada, Akihiro Inoue, Kazuhiro Morita, Takuya Yamaguchi, Wataru Takahashi, Akihiko Kimura   +7 more
doaj   +1 more source

Biologically‐Oriented Alveolar Ridge Preservation (BARP) in Intact and Compromised Extraction Sockets

Journal of Periodontal Research, EarlyView.
The Biologically‐oriented Alveolar Ridge Preservation (BARP) is an innovative technique characterized by the stratification of different biomaterials (collagen sponge and xenograft) at intact and compromised sockets. In both groups, the hard and soft tissue modification (bone width, bone height, tissue profile, and hard tissue composition) was limited.
Mattia Pramstraller, Roberto Farina, Anina Nives Zuercher, Ronald Ernst Jung, Mike Barbeck, Marco Fracasso, Alberto Sclip, Leonardo Trombelli   +7 more
wiley   +1 more source

Characterization for high dynamic range imaging [PDF]

, 2008
In this paper we present a new practical camera characterization technique to improve color accuracy in high dynamic range (HDR) imaging. Camera characterization refers to the process of mapping device-dependent signals, such as digital camera RAW images,
Kim, M.H., Min H. Kim, Kautz, Jan, Kautz, J., Kim, Min Hyuk, Jan Kautz   +5 more
core   +1 more source

Uncertainty of SYNOP Cloud Classifications by Human Observers

Meteorological Applications, Volume 33, Issue 5, September/October 2026.
Operational cloud classification is subjective to some extent and should not be used without quality control for example, to train automatized methods. Inter‐observer agreement depends on the sky conditions, the nature of the observation (image‐based or on‐site), the framework under which it is conducted (sky snippets for gold standard atlases vs ...
Markus Rosenberger, Manfred Dorninger, Martin Weissmann   +2 more
wiley   +1 more source

Auroral Effect on Mid‐Latitude Ionospheric Disturbances Over Europe During the Extreme Geomagnetic Storm of 10 May 2024

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Large ionospheric disturbances were observed over Europe during the extreme geomagnetic storm on 10 May 2024. This study analyzes GNSS‐derived total electron content (TEC) and all‐sky imager data to investigate these disturbances. Pronounced TEC enhancements, irregularities, and strong gradients were confined to the auroral region above the ...
Grzegorz Nykiel, Joanna Kanska, Hiroatsu Sato, Shin‐ichiro Oyama, Kazuo Shiokawa, David R. Themens   +5 more
wiley   +1 more source

Precise Geoid Determination in the Eastern Swiss Alps Using Geodetic Astronomy and GNSS/Leveling Methods

Sensors
Astrogeodetic deflections of the vertical (DoVs) are close indicators of the slope of the geoid. Thus, DoVs observed along horizontal profiles may be integrated to create geoid undulation profiles.
Müge Albayrak, Urs Marti, Daniel Willi, Sébastien Guillaume, Ryan A. Hardy   +4 more
doaj   +1 more source

Beyond goniometry: 3D digital twinning of droplets from a single image

Droplet, Volume 5, Issue 3, July 2026.
We present a method to produce physics‐informed three‐dimensional digital twins of droplets from a single image for wettability analyses. We validate the method with goniometry and demonstrate its capabilities with advancing‐receding contact angle measurements, irregularly shaped droplets, and multi‐droplet systems, indicating strong potential for in ...
Isaac Berk, Emilie Luong, H. Jeremy Cho
wiley   +1 more source

Evaluation of average leaf inclination angle quantified by indirect optical instruments in crop fields

International Journal of Applied Earth Observations and Geoinformation
Average leaf inclination angle (θ¯L) is an important canopy structure variable that influences light regime, photosynthesis, and evapotranspiration of plants.
Kaiyuan Li, Chongya Jiang, Kaiyu Guan, Genghong Wu, Zewei Ma, Ziyi Li   +5 more
doaj   +1 more source

Design and Implementation of an Automated Safety Control System for the Jocelyn Bell Burnell Radio Telescope

Radio Science, Volume 61, Issue 7, July 2026.
Abstract Large parabolic antennas used in radio astronomy are mechanically vulnerable to high wind loads, which can compromise both structural integrity and pointing calibration. We present the design, implementation, and validation of an automated safety control system for the 4.5 m Jocelyn Bell Burnell radio telescope at the Public University of ...
Rubén Benítez, Rafael Ruiz, Silvia Diaz   +2 more
wiley   +1 more source

Field geophysical complex for creating maps of the parameters of the Earth's gravitational and magnetic fields

Russian Journal of Earth Sciences
The article discusses a field geophysical complex that includes the Earth's gravity and magnetic fields parameters meters — an digital zenith camera (DZC), a relative gravimeter, onboard quantum magnetometer and ground magnetovariation station.
Murzabekov Murat Mushtafarovich, Lopatin Vladislav, Bobrov Dmitry   +2 more
doaj   +1 more source