Results 21 to 30 of about 29,357 (211)

Acoustic Seafloor Classification Using the Weyl Transform of Multibeam Echosounder Backscatter Mosaic

Remote Sensing, 2021
The use of multibeam echosounder systems (MBES) for detailed seafloor mapping is increasing at a fast pace. Due to their design, enabling continuous high-density measurements and the coregistration of seafloor’s depth and reflectivity, MBES has become a ...
Ting Zhao, Giacomo Montereale Gavazzi, Srđan Lazendić, Yuxin Zhao, Aleksandra Pižurica   +4 more
doaj   +1 more source

Klasifikasi Jenis dan Sebaran Sedimen Menggunakan Data Multibeam Echosounder Multi-Temporal di Alur Pelayaran Barat dan Timur Surabaya

Journal of Geospatial Information Science and Engineering, 2021
Pelabuhan Tanjung Perak Surabaya merupakan salah satu pelabuhan utama di Indonesia yang memiliki peran penting dalam transportasi laut Indonesia.
Fadilla Ivana Ayuningtyas, Bambang Kun Cahyono   +1 more
doaj   +1 more source

Sub-Bottom Sediment Classification Employing a Multi-Attribute Temporal Convolutional Network

Journal of Marine Science and Engineering
Sub-bottom profile data have the potential to characterize sediment properties but are seldom used for offshore site investigations because of uncertainties in rock-physics models. Deep-learning techniques appear to be poised to play very important roles
Lei Liu, Houpu Li, Shaofeng Bian, Junhui Zhu   +3 more
doaj   +1 more source

Enhancing seabed sediment classification with multibeam echo-sounding and self-training: a case study from the East Sea of South Korea

Frontiers in Earth Science
IntroductionAccurate classification of seabed sediments is essential for marine spatial planning, resource management, and scientific research. While direct sampling yields precise sediment information, it is costly and spatially limited.
Changhoon Lee, Sujung Park, Daeung Yoon, Bo-Yeon Yi, Moonsoo Lim   +4 more
doaj   +1 more source

Large-Scale Seabed Sediment Classification Using Sentinel-2 Imagery and Efficient Machine Learning Pipelines

IEEE Access
Large-scale mapping of seabed sediments is essential for environmental management, offshore engineering, and the sustainable exploitation of resources, particularly in optically complex coastal regions such as the Brazilian Equatorial Margin (BEM ...
Diego De Oliveira Dantas, Marta De Oliveira Barreiros, Jonathan Araujo Queiroz, Jailly Aparecida Do Rosario Silva, Joao Regis Dos Santos Filho, Cleverson Guizan Silva, Allan Kardec Duailibe Barros Filho   +6 more
doaj   +1 more source

Mapping of Sediment on the Waters Around Panjang Island, Banten Bay, Indonesia

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2021
This study was conducted to map the surface sediment conditions in the waters around Panjang Island, Banten Bay. The survey method was conducted in February 2015 by taking sediment samples using a grab sampler at 15 stations.
Syawaludin A Harahap, Lintang P. S. Yuliadi, Noir P. Purba, Awal A. Aulia   +3 more
doaj   +1 more source

A Semisupervised Classification Method for Riverbed Benthic Sediments Using Integrated Superpixel Segmentation and Confident Learning Sample Enhancement

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Riverbed sediments are crucial in river ecosystems, significantly impacting water quality, environmental protection, and water resource management. With the increasing ease of obtaining high-resolution river data, integrating multibeam technology and ...
Yaxue Wang, Yuewen Sun, Xiaodong Cui, Tianyu Yun, Xianhai Bu, Fanlin Yang   +5 more
doaj   +1 more source

Estimation of policy-relevant reference conditions throughout national river networks

MethodsX, 2021
A method for objectively estimating reference states for suspended fine sediment (turbidity) is presented. To be fit for water policy development and implementation the method had to satisfy four requirements: (1) the method must not be dependent on data
Rick J. Stoffels, Doug J. Booker, Paul A. Franklin, Ton H. Snelder, Joanne E. Clapcott, Stephen R. Fragaszy, Annika Wagenhoff, Chris W. Hickey   +7 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

FEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani, Konstantinos Spanopoulos, Zoi Piperigkou, Nikos K. Karamanos   +3 more
wiley   +1 more source