Results 71 to 80 of about 14,407 (306)
Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering
Advanced Photonics Research, Volume 6, Issue 5, May 2025.Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik +7 more
wiley +1 more source
Hypervelocity impacts and the evolution of planetary surfaces and interiors [PDF]
, 2009 Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2009.This electronic version was submitted by the student author.
Watters, Wesley Andrés, 1976-
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Crater Retention Timescales of Brain Coral Terrain Record Past Climatic Change on Mars
The Planetary Science JournalGlacial landforms on Mars offer an opportunity to decipher the planet’s recent climate history. We used crater size frequency distributions of brain coral terrain on concentric crater fill, lobate debris aprons, and lineated valley fill, all of which ...
Alexander M. Morgan +3 more
doaj +1 more source
Advanced Robotics Research, EarlyView.A novel carbon fiber reinforcement for dielectric elastomer actuators enhances actuation force while decoupling electromechanical performance from the actuator's aspect ratio. Unlike conventional fiber reinforcements, it enables a uniform planar stretch state along the entire actuator.
Markus Koenigsdorff +8 more
wiley +1 more source
Geomorphological processes on terrestrial planetary surfaces [PDF]
, 1980 This review deals with features and processes on planetary surfaces, first by examining the impact of photographic explorations of Moon, Mars, and Mercury on studies of surface processes on our own planet, and second by treating matters related to ...
Sharp, Robert P.
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Thermal Inertia Controls on Titan’s Surface Temperature and Planetary Boundary Layer Structure
The Planetary Science JournalUnderstanding Titan’s planetary boundary layer (PBL)—the lowest region of the atmosphere influenced by surface conditions—remains challenging due to Titan’s thick atmosphere and limited observations.
Sooman Han, Juan M. Lora
doaj +1 more source
Archives of Metallurgy and Materials, 2017 This article describes machining technology of polyhedral surfaces with varying profile, which is provided by planetary motion of multiblade block tools. The features of the technology and urgency of the problem is indicated.
Razumov M. +2 more
doaj +1 more source
Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion
Advanced Robotics Research, EarlyView.This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley +1 more source
Workshop on Surface Ages and Histories : issues in planetary chronology : May 21-23, 2006, Houston, Texas [PDF]
, 2006 A fundamental unsolved issue facing planetary science is that of surface ages of solar system bodies. Just how old are the surfaces we see, and how many planets are still geologically active today?
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Asteroid modeling for testing spacecraft approach and landing [PDF]
, 2014 Spacecraft exploration of asteroids presents autonomous-navigation challenges that can be aided by virtual models to test and develop guidance and hazard-avoidance systems.
Parkes, Steve +7 more
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