Results 91 to 100 of about 1,274 (202)

IPILT–OHPL: An Over-the-Horizon Propagation Loss Prediction Model Established by Incorporating Prior Information Into the LSTM–Transformer Structure

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The evaporation duct is a prevalent atmospheric structure in the marine lower troposphere with significant regional nonuniformity. This structure can trap radio waves inside its layer and enable them to propagate over the horizon with less loss ...
Hanjie Ji, Lixin Guo, Jinpeng Zhang, Yiwen Wei, Xiangming Guo, Yusheng Zhang, Tianhang Nie, Jie Feng   +7 more
doaj   +1 more source

Experimental Investigation of Burning Liquids in Reduced Oxygen

Fire and Materials, Volume 50, Issue 4, Page 448-459, June 2026.
ABSTRACT The effects of oxygen concentration on combustion of gases have been investigated on fundamental levels in several studies. However, the same type of fundamental studies has not been made for liquid or solid fuels due to complex relationships between flame structure and changing mass loss rates (MLR).
Joakim Åström, Patrick van Hees, Marcus Runefors, Nils Johansson   +3 more
wiley   +1 more source

The Shrinking Caspian Sea: Eco‐Hydrological Responses to Human and Climate Pressures

Earth's Future, Volume 14, Issue 6, June 2026.
Abstract The Caspian Sea, the Earth's largest inland water body, faces water level decline, drawing comparisons to the collapse of the Aral Sea. Unlike the Aral Sea, the relative roles of climatic variability, hydrological changes, and anthropogenic pressures on the Caspian Sea remain poorly understood.
Jesse Duku, Mohammad J. Tourian, Marzi Azarderakhsh, Rovshan Abbasov, Ali Mehran, Ali Torabi Haghighi, Stefanos Xenarios, Azara Boschee, Salih Babagiray, Mojtaba Sadegh, Nima Shokri, Ali Nazemi, Alireza Farahmand, Samaneh Ashraf, Temur Khujanazarov, Elmira Hassanzadeh, Dalal Najib, Daniel Placht, Shamshagul Mashtayeva, Ekaterina Rets, Hamid Norouzi, Kaveh Madani, Manoochehr Shirzaei, Hossein Shafizadeh‐Moghadam, Chiyuan Miao, Ali Mirchi, Shuo Wang, Amir AghaKouchak   +27 more
wiley   +1 more source

Wireless Channel Models for Over-the-Sea Communication: A Comparative Study

Applied Sciences, 2019
Over the past few years, the modeling of wireless channels for radio wave propagation over the sea surface has drawn the attention of many researchers.
Arafat Habib, Sangman Moh
doaj   +1 more source

The effect of infrared sea surface temperature measurements on evaporation duct height estimation [PDF]

, 1994
In September 1994 personnel from the Naval postgraduate School (NPS) and the Naval Oceanographic Office (NavO) conducted an experiment off the coast of Mississippi to determine the accuracy of infrared sea surface temperature (SST) measurements made from
Davidson, Kenneth L., Frederickson, Paul A., Jones, F. Keith.   +2 more
core  

Microbial influence on the formation and subsequent changes of vertebrate tracks: field experiments on present‐day coastal sediments

Sedimentology, Volume 73, Issue 4, Page 1121-1147, June 2026.
ABSTRACT The presence of microbial mats is often invoked to explain the good preservation of vertebrate tracks, because they can cover and biostabilize such structures. However, microbial influence on the sediment properties when the track is made and on the track characteristics has not been so thoroughly analysed.
Isabel Emma Quijada, Lucía Maisano, Jerónimo Pan, María Florencia Yorlano, Diana G. Cuadrado   +4 more
wiley   +1 more source

Long-term statistics related to evaporation duct propagation of 2 GHz radio waves in the English Channel

, 2010
This paper presents long‐term statistics additional to those previously published pertaining to evaporation duct propagation of UHF radio waves in the British Channel Islands, with particular focus on a completely over‐sea 50 km transhorizon path.
S.D. Gunashekar (7595726), S. D. Gunashekar, D. R. Siddle, David R. Siddle (7595729), E. Michael Warrington (7583003), E. M. Warrington   +5 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Research on Evaporation Duct Height Prediction Modeling in the Yellow and Bohai Seas Using BLA-EDH

Atmosphere
Evaporation Duct Height (EDH) is a crucial parameter in evaporation duct modeling, as it directly influences the strength of the waveguide trapping effect and significantly impacts the over-the-horizon detection performance of maritime radars. To address
Xiaoyu Wu, Lei Li, Zheyan Zhang, Can Chen, Haozhi Liu   +4 more
doaj   +1 more source

Preserving an Imperiled Porpoise Through Pixels: Digitization of a Vaquita (Phocoena sinus) Skeleton, the World's Most Endangered Marine Mammal

Marine Mammal Science, Volume 42, Issue 3, July 2026.
Jamie L. Knaub, Brittany A. Dolan, Philip Unitt, Robert L. Brownell Jr., Tricia L. Meredith, Marianne E. Porter   +5 more
wiley   +1 more source