Results 91 to 100 of about 89,456 (303)

Recognizing spatial geochemical anomaly patterns using deformable convolutional networks guided with geological knowledge [PDF]

open access: yesGeoscientific Model Development
This study tackles the limited quantification of irregular spatial geochemical anomaly patterns and weak interpretability in deep learning models in geochemical anomaly recognition.
X. Zhang, Y. Xiong, Z. Chen
doaj   +1 more source

Autonomous Machine Learning‐Based Classification and Arrangement of Submillimeter Objects Using a Capillary Force Gripper

open access: yesAdvanced Intelligent Discovery, EarlyView.
This study presents an automated system integrating a capillary force gripper and machine learning‐based object detection for sorting and placing submillimeter objects. The system achieved stable and simultaneous manipulation of four object types, with an average task time of 86.0 seconds and a positioning error of 157 ± 84 µm, highlighting its ...
Satoshi Ando   +4 more
wiley   +1 more source

Development of perennial thaw zones in boreal hillslopes enhances potential mobilization of permafrost carbon

open access: yesEnvironmental Research Letters, 2019
Permafrost thaw alters subsurface flow in boreal regions that in turn influences the magnitude, seasonality, and chemical composition of streamflow. Prediction of these changes is challenged by incomplete knowledge of timing, flowpath depth, and amount ...
Michelle A Walvoord   +3 more
doaj   +1 more source

Vertical Seismic Profile Wavefield Separation Using Median Filtering Constrained by the Linear Radon Transform

open access: yesApplied Sciences, 2018
Separation of downgoing and upgoing P-waves and S-waves in an offset 2D/3D vertical seismic profile (VSP) record is a basic step in VSP data processing. Radon transform and median filtering methods are commonly used to separate wavefields.
Yuyong Yang, Jun Lu, Yun Wang
doaj   +1 more source

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

open access: yesAdvanced Intelligent Systems, EarlyView.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

The Impact of Climate Change on Slope Geological Processes (With the Example of Hovk Community Landslide)

open access: yes, 2021
Climate change in mountainous areas increases the likelihood of activation of slope geological processes. Due to climate change, the total amount of precipitation in the South Caucasus has decreased by 10-15%.
Arakelyan, S.   +5 more
core  

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

High-temperature wood silicification: constraints from fluid and carbonaceous inclusions in quartz from Qitai, NW China

open access: yesScientific Reports
Silicified wood serves as a crucial geological archive, recording significant information about palaeoenvironment, palaeoecology, palaeontology and diagenetic conditions.
Wenqing Liu   +9 more
doaj   +1 more source

Exploring the lichenization continuum through the marine tripartite symbiosis of Collemopsidium pelvetiae

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Symbioses between lichen‐forming fungi and brown algae (phaeophytes) are extremely rare. We investigated the interactions between the marine fungus Collemopsidium pelvetiae and its two photosynthetic partners, the brown alga Pelvetia canaliculata and a cyanobacterial symbiont to address questions on symbiosis biology, lichenization ...
Sergio Pérez‐Ortega   +5 more
wiley   +1 more source

Conservation of Geological Features in Peninsular Malaysia

open access: yes, 1989
Geological conservation is the protection from destruction of physical formations and geological phenomena of outstanding scientific value representing the different stages of the Earth\u27s geologic history and its transformation through ongoing ...
Editor Geological Society of Malaysia
core  

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