Results 131 to 140 of about 21,151,583 (337)

Ultra‐White Elastomeric Coatings for Daytime Radiative Cooling

Advanced Materials Technologies, EarlyView.
Passive daytime radiative cooling meets elasticity in a new class of ultra‐white silicone coatings. Combining high solar reflectance with strong sky‐window emission, they hold surfaces below ambient temperature under full sunlight while remaining flexible and stretchable. This combination of cooling performance and mechanical flexibility enables energy‐
Abdulrahman Aljwirah, Xiaojie Liu, Khalid Alhammadi, Orlando G. Rivera Gonzalez, Won‐June Lee, Xiulin Ruan   +5 more
wiley   +1 more source

Rotation‐Controlled Diurnal Evolution of Uranus' Asymmetric Bow Shock at Equinox

AGU Advances
Uranus possesses the most extreme magnetic and rotational geometry in the solar system, resulting in a uniquely dynamic and asymmetric interaction between its magnetosphere and the solar wind.
X. Cao, C. Paty, F. Chu, J. Lei
doaj   +1 more source

Programmable Variable‐Stiffness Multilayer Elastomer Composites With High‐Aspect‐Ratio Low‐Melting‐Point Alloy Inclusions

Advanced Materials Technologies, EarlyView.
High‐aspect‐ratio low‐melting‐point alloy inclusions are embedded within multilayer silicone laminates to create thermally programmable stiffness. Sequential activation of alloy‐rich layers produces four distinct mechanical states and reconfigures tendon‐driven actuator trajectories under the same load.
Palpolage Don Shehan Hiroshan Gunawardane, Gyan Edbert Zesiro, Hao Zhou, Gursel Alici, Mu Chiao   +4 more
wiley   +1 more source

The KPF SLOPE Survey: Small, Compact Multiplanet Systems Appear Spin–Orbit Aligned

The Astrophysical Journal
The angle between stellar spin axes and planetary orbits—stellar obliquity—probes the dynamics of planetary migration and evolution. The obliquities of giant planets have been extensively studied because they are the most easily measured. Smaller planets,
Luke B. Handley, Andrew W. Howard, Fei Dai, Ryan A. Rubenzahl, Steven Giacalone, Howard Isaacson, J. M. Joel Ong, Theron W. Carmichael, Yaguang Li, Jack Lubin, Pranav H. Premnath, Claire J. Rogers, Pranav Nagarajan, Gregory J. Gilbert, Benjamin Fulton, Steven R. Gibson, Arpita Roy, Jerry Edelstein, Christopher Smith   +18 more
doaj   +1 more source

Volatiles as a link between planetary interiors and the environment [PDF]

, 2013
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (pages 163-179).Volatiles derived from planetary interiors ...
Black, Benjamin A. (Benjamin Alexander)
core  

Atmospheric Planetary Probes and Balloons in the Solar System

, 2011
A primary motivation for in situ probe and balloon missions in the solar system is to progressively constrain models of its origin and evolution. Specifically, understanding the origin and evolution of multiple planetary atmospheres within our solar ...
N Strange, J Lunine, J-P Lebreton, J Hall, C Erd, D Matson, A Coustenis, D Atkinson, P Beauchamp, S Atreya, K Reh, T R Spilker, T Balint, J Elliott   +13 more
core   +1 more source

Hybrid Additive Manufacturing of Highly Stretchable Bottlebrush Polymer Nanocomposites by Decoupled Extrusion and Photopatterning

Advanced Materials Technologies, EarlyView.
A Hybrid Direct Ink Writing–Digital Light Processing (HDD) strategy decouples material extrusion from shape definition, enabling high‐fidelity additive manufacturing of highly viscous, yield‐stress polymer nanocomposites. Excess ink acts as a removable, self‐supporting scaffold, allowing fabrication of unsupported and embedded complex architectures ...
Shahryar Ramezani Bajgiran, Emmanuel Oduro, Daniel A. Rau, Li‐Heng Cai   +3 more
wiley   +1 more source

Investigations of the Formation and Evolution of Planetary Systems

, 2009
Stars and planets are the fundamental objects of the Universe. Their formation processes, though related, may differ in important ways. Stars almost certainly form from gravitational collapse and probably have formed this way since the first stars lit the skies.
Wootten, Alwyn, Butler, Bryan, Hales, Antonio, Corder, Stuartt, Brown, Robert, Wilner, David   +5 more
openaire   +2 more sources

Precise Physical Parameters, Habitability, and Orbital Stability of Sun-like SB2 Systems: HD 130669, HD 184467, HD 191854, and HD 214222

The Astronomical Journal
This work analyzes four Sun-like double-lined spectroscopic binary systems by combining visual and spectroscopic observational data with Al-Wardat’s atmospheric modeling method to accurately determine their fundamental parameters.
Ahmad Abushattal, Nikolaos Georgakarakos, Mashhoor A. Al-Wardat, Bilal Algnamat, Hassan B. Haboubi, Deshinta Arrova Dewi, Enas M. Abu-Alrob, Abdallah M. Hussein   +7 more
doaj   +1 more source

Model Predictive Traction and Steering Control of Planetary Rovers [PDF]

, 2013
Results of the ESA project RobMPC (Robust Model Predictive Control for Space Constraint Systems) could successfully demonstrate that model predictive control (MPC) is definitively applicable for space systems with high dynamics like wheeled vehicles ...
Krenn, R., Bemporad, Alberto, Krenn, Rainer, Gibbesch, A., Gibbesch, Andreas, Bemporad, A, Binet, Giovanni, Bemporad, A., Binet, G.   +8 more
core