Results 21 to 30 of about 797,532 (288)

How Do We See the Nuclear Region (r < 0.1 pc) of Narrow-Line Seyfert 1 Galaxies? [PDF]

, 2000
We propose two statistical tests to investigate how we see the nuclear region (r < 0.1 pc) of Narrow-Line Seyfert 1 galaxies (NLS1s). 1) The high-ionization nuclear emission-line region (HINER) test: Seyfert 1 galaxies (S1s) have systematically higher ...
Antonucci, Antonucci, Boller, Murayama, Murayama, Murayama, Nagao, Pier, Pier, Pier, Takashi Murayama, Tohru Nagao, Yoshiaki Taniguchi   +12 more
core   +3 more sources

Estimating Gravimetric Water Content of a Winter Wheat Field from L-Band Vegetation Optical Depth

Remote Sensing, 2019
A considerable amount of water is stored in vegetation, especially in regions with high precipitation rates. Knowledge of the vegetation water status is essential to monitor changes in ecosystem health and to assess the vegetation influence on the water ...
Thomas Meyer, Thomas Jagdhuber, María Piles, Anita Fink, Jennifer Grant, Harry Vereecken, François Jonard   +6 more
doaj   +1 more source

Special issue in honour of Prof. Reto J. Strasser - Revisiting JIP-test: An educative review on concepts, assumptions, approximations, definitions and terminology

Photosynthetica, 2020
The aim of this educative review is, by revisiting the JIP-test as introduced and further elaborated and extended by Professor Reto J. Strasser and his research group, to clarify concepts, assumptions, and approximations on which it is based, as well as ...
M. TSIMILLI-MICHAEL
doaj   +1 more source

The SARSense Campaign: Air- and Space-Borne C- and L-Band SAR for the Analysis of Soil and Plant Parameters in Agriculture

Remote Sensing, 2021
With the upcoming L-band Synthetic Aperture Radar (SAR) satellite mission Radar Observing System for Europe L-band SAR (ROSE-L) and its integration into existing C-band satellite missions such as Sentinel-1, multi-frequency SAR observations with high ...
David Mengen, Carsten Montzka, Thomas Jagdhuber, Anke Fluhrer, Cosimo Brogi, Stephani Baum, Dirk Schüttemeyer, Bagher Bayat, Heye Bogena, Alex Coccia, Gerard Masalias, Verena Trinkel, Jannis Jakobi, François Jonard, Yueling Ma, Francesco Mattia, Davide Palmisano, Uwe Rascher, Giuseppe Satalino, Maike Schumacher, Christian Koyama, Marius Schmidt, Harry Vereecken   +22 more
doaj   +1 more source

Modified Zebra Optimization Algorithm via Design Operators for Modern Power System Planning Problem Solution

IEEE Access
Transmission Expansion Planning (TEP) is a key aspect in securing the reliability and efficiency of current-day power systems when dealing with the growing energy needs and energy security.
Yunus Balci, Serhat Duman
doaj   +1 more source

Comparing C- and L-band SAR images for sea ice motion estimation [PDF]

The Cryosphere, 2015
Pairs of consecutive C-band synthetic-aperture radar (SAR) images are routinely used for sea ice motion estimation. The L-band radar has a fundamentally different character, as its longer wavelength penetrates deeper into sea ice.
J. Lehtiranta, S. Siiriä, J. Karvonen
doaj   +1 more source

Imaging ionospheric inhomogeneities using spaceborne synthetic aperture radar [PDF]

, 2011
We present a technique and results of 2-D imaging of Faraday rotation and total electron content using spaceborne L band polarimetric synthetic aperture radar (PolSAR).
Chapman, B., Freeman, A., Li, Z., Pi, X., Rosen, P.   +4 more
core   +2 more sources

Investigating Remote Work Trends in Post-COVID-19: A Twitter-Based Analysis

IEEE Access
This study explores the evolving trends and public perceptions of remote work that have emerged in the aftermath of the COVID-19 pandemic, with a particular focus on identifying key themes and sentiments expressed on Twitter in 2022.
Adem Korkmaz, Selma Bulut, Selahattin Kosunalp, Teodor Iliev   +3 more
doaj   +1 more source

Photochemical activity in Dalbergia nigra (Vell.) Fr. Allem. seedlings submitted to water deficit

Journal of Forest Science, 2018
In this study, we evaluated the influence of the daily variation of both intensity of photosynthetically active radiation (PAR) and temperature on chlorophyll a fluorescence parameters in Jacarandá-da-Bahia seedlings submitted to two treatments: T1 ...
Natiele SANDRINI CELOVANE, Jadson BONINI ZAMPIROLLO, Thais SILVA COSTA, Clodoaldo LEITES PINHEIRO, Diolina MOURA SILVA, Elisa MITSUKO AOYAMA, Antelmo RALPH FALQUETO   +6 more
doaj   +1 more source

DBLA-MobileNetV2: Real-Time Rice Leaf Disease Detection on Edge Devices With Dual-Branch Lightweight Attention

IEEE Access
Rice cultivation, the foundation of global food security, is vulnerable to leaf diseases, which significantly reduce both yield and quality. Early and accurate detection is crucial for effective and sustainable disease management.
Mustafa Tasci
doaj   +1 more source