Results 81 to 90 of about 109,361 (292)

Automatic estimation of the regularization parameter in 2-D focusing gravity inversion: an application to the Safo manganese mine in northwest of Iran

, 2014
We investigate the use of Tikhonov regularization with the minimum support stabilizer for underdetermined 2-D inversion of gravity data. This stabilizer produces models with non-smooth properties which is useful for identifying geologic structures with ...
Ardestani, Vahid E, Renaut, Rosemary A, Vatankhah, Saeed   +2 more
core   +1 more source

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

Advanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He, Dehong Wang, Jing Li, Shijing Zhang, Yingxiang Liu   +4 more
wiley   +1 more source

3D Gravity and magnetic inversion modelling for geothermal assessment and temperature modelling in the central eastern desert and Red Sea, Egypt

Scientific Reports
The Central Eastern Desert and Red Sea region have emerged as a significant area of interest for geothermal energy exploration, owing to their unique geological characteristics and active tectonic activity. This research aims to enhance our understanding
Gaber M. Gaber, Salah Saleh, Adel Kotb
doaj   +1 more source

Analysis of harmonic spline gravity models for Venus and Mars [PDF]

Methodology utilizing harmonic splines for determining the true gravity field from Line-Of-Sight (LOS) acceleration data from planetary spacecraft missions was tested.
Bowin, Carl
core   +1 more source

The mesospheric inversion layer and sprites

, 2009
The vertical structure of temperature observed by SABER (Sounding of Atmosphere using Broadband Emission Radiometry) aboard TIMED (Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics) and sprites observations made during the Eurosprite 2003 to ...
Armstrong, Arnone, Barrington-Leigh, Bell, Boccippio, Brasseur, Chanrion, Christensen, Chu, Cummins, Devendraa Siingh, Dewan, Drüe, Enell, Fadnavis, Fadnavis, Fovell, Gardner, Gordillio-Vazquez, Haldoupis, Hauchecorne, Hauchecorne, Heavner, Huang, Krehbiel, Kumar, Leblanc, Leblanc, Lehtinen, Liu, Liu, Lyons, Lyons, Mazur, Meriwether, Meriwether, Meriwether, Mertens, Mika, Mlynczak, Neubert, Neubert, Neubert, Oberheide, Pasko, Picard, Picard, R. P. Singh, Rodger, Roussel-Dupre, S. Fadnavis, Sao Sabbas, Schmidlin, Schumann, Sentman, Sentman, Sica, Siingh, Siingh, Siingh, Singh, Singh, Soula, States, Swenson, Taranenko, Taylor, Thomas, Turnbull, Williams, Williams, Williams, Williams, Williams, Wilson, Wu   +75 more
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Physics-Constrained Three-Dimensional Swin Transformer for Gravity Data Inversion

Remote Sensing
This paper proposes a physics-constrained 3D Swin Transformer (ST) for gravity inversion. By leveraging the self-attention mechanism in 3D ST, the method effectively models global dependencies within gravity data, enabling the network to reweight ...
Ping Yu, Longran Zhou, Shuai Zhou, Jian Jiao, Guanlin Huang, Pengyu Lu   +5 more
doaj   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

Advanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Structural interpretation of Southern Main Ethiopian Rift basin using constrained full tensor gravity inversion of the basement morphology. [PDF]

Heliyon, 2022
Kebede B, Mammo T, Misgie A.
europepmc   +1 more source

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

Advanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker, Jelle de Vries, Johannes T. B. overvelde   +2 more
wiley   +1 more source