Results 121 to 130 of about 7,037,410 (298)

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

open access: yesAdvanced 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   +2 more
wiley   +1 more source

Reassessing Sub-Neptune Structure, Radii, and Thermal Evolution

open access: yesThe Astrophysical Journal
We present a novel python-based 1D sub-Neptune evolution model that emphasizes the thermal evolution and potential solidification of the rock/iron core and the structure of the radiative atmosphere. This model explores planetary structure from the molten
Yao Tang   +5 more
doaj   +1 more source

Autonomous Locomotion of Tensegrity Structure on Low‐Temperature Surfaces

open access: yesAdvanced Robotics Research, EarlyView.
A low‐temperature responsive tensegrity structure (LRTS) is constructed by integrating low‐responsive temperature liquid crystal elastomer (LCE) cables, nonresponsive cables, and stiff rods. The low phase transition temperature of LCE is achieved by introducing a new liquid crystal mesogen.
Changyue Liu   +5 more
wiley   +1 more source

Stable Stratification of the Helium Rain Layer Yields Vastly Different Interiors and Magnetic Fields for Jupiter and Saturn

open access: yesThe Planetary Science Journal
At sufficiently high pressures (∼Mbar) and low temperatures (∼10 ^3 –10 ^4 K), hydrogen and helium become partly immiscible. Interpretations of Jupiter’s and Saturn’s magnetic fields favor the existence of a statically stable layer near the Mbar pressure
S. Markham, T. Guillot
doaj   +1 more source

Experimental cosmochemistry in the space station : report of workshops September 12-13, 1985 and February 24-25, 1986. [PDF]

open access: yes, 1986
The scientific discussions focused on two general areas of research: chemical and physical processes in the earliest history of the general areas of research, and general principles of magmatic process applicable both to planetary formation and evolution,

core  

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu   +5 more
wiley   +1 more source

双模式机电复合无级传动功率分流特性分析

open access: yesJixie chuandong, 2014
Electro-mechanical variable transmission(EVT)system can enhance the fuel economy by adjusting the engine operating points,and take full advantage of high efficiency of the mechanical transmission.So it is a good solution for applying the hybrid ...
吉雅太   +3 more
doaj  

Analysis of the Fatigue Characteristic of 2K-H Wind Power Helical Planetary Gear Train

open access: yesJixie chuandong, 2020
In order to accurately estimate the fatigue life of the wind power planetary gear train under actual working conditions, the 1.5 MW 2K-H helical gear planetary gear train is taken as the research object.
Mingming Su, Mutellip Ahmat, Xingwei Tao
doaj  

Morphokinematic Structure of the Planetary Nebula NGC 6563

open access: yesGalaxies
We present a morphokinematic analysis based on high-resolution long-slit echelle spectroscopy of the [N ii]λ6583 line and narrowband imaging. Position–velocity diagrams reveal asymmetric expansion and localized kinematic features. We derive a systemic velocity of VsysLSR=−25±1 km s−1 (VsysHEL=−34±1 km s−1) and a main shell expansion velocity of Vexp=22±
Zahra Al   +4 more
openaire   +2 more sources

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