Results 31 to 40 of about 196,454 (289)

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

Research on Seabed Sediment Classification Based on the MSC-Transformer and Sub-Bottom Profiler

Journal of Marine Science and Engineering, 2023
This paper proposed an MSC-Transformer model based on the Transformer’s neural network, which was applied to seabed sediment classification. The data came from about 2900 km2 of seabed area on the northern slope of the South China Sea.
Han Wang, Qingjie Zhou, Shuo Wei, Xiangyang Xue, Xinghua Zhou, Xiaobo Zhang   +5 more
doaj   +1 more source

Mesoscale mapping of sediment source hotspots for dam sediment management in data-sparse semi-arid catchments [PDF]

, 2020
Land degradation and water availability in semi-arid regions are interdependent challenges for management that are influenced by climatic and anthropogenic changes.
Gholami, Faraz Rabei, Mousavi, Maryam, Müller, Anne, Smetanová, Anna, Suleiman, Mohamed A., Zargar, Morteza   +5 more
core   +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

Sediment Augmentation for River Rehabilitation and Management—A Review

Land, 2021
Sediment management is an important part of river rehabilitation and management. Global case studies provide a growing number of examples of successful sediment augmentation measures that can counter the adverse effects of disturbed sediment regimes. The
Christian Mörtl, Giovanni De Cesare
doaj   +1 more source

Mapping the interactions between rivers and sand dunes: Implications for fluvial and aeolian geomorphology [PDF]

, 2014
The interaction between fluvial and aeolian processes can significantly change Earth surface morphology. When rivers and sand dunes meet, the interaction of sediment transport between the two systems can lead to change in either or both systems. However,
Coulthard, Tom J., Liu, Baoli
core   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Assessing the Artificial Neural Network Efficiency to Estimate Suspended Sediment Load using Classified Data [PDF]

محیط زیست و مهندسی آب, 2016
Flow sediment load is a useful indicator in predicting soil erosion in watersheds. As a result, developing a model to estimate sediment load can be useful in the management and operations of watersheds and river engineering projects.
Homayoun Faghih, Ata Amini, Farzane Haidari, Keivan Khalili   +3 more
doaj  

Geochemistry of Sub-Depositional Environments in Estuarine Sediments: Development of an Approach to Predict Palaeo-Environments from Holocene Cores

Geosciences, 2022
In the quest to use modern analogues to understand clay mineral distribution patterns to better predict clay mineral occurrence in ancient and deeply buried sandstones, it has been necessary to define palaeo sub-environments from cores through modern ...
Dahiru D. Muhammed, Naboth Simon, James E. P. Utley, Iris T. E. Verhagen, Robert A. Duller, Joshua Griffiths, Luke J. Wooldridge, Richard H. Worden   +7 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source