Results 111 to 120 of about 34,313 (303)

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

Chemical Synthesis in the Circumstellar Environment

Galaxies
We discuss the spectral distinctions between B[e] stars and compact planetary nebulae. The differentiation between proto-planetary nebulae, transition objects between the asymptotic giant branch and planetary nebulae, and reflection nebulae in binary ...
Sun Kwok
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Impact of Cold Jupiter Scattering on the Mean-motion Resonance of Inner Small Planets

The Astrophysical Journal
A key feature of close-in, multiple super-Earth (SE) systems is the tendency for adjacent planet pairs to lie just wide of low-order mean-motion resonances (MMRs).
Kangrou Guo, Xiumin Huang, Dong Lai
doaj   +1 more source

Planetary stewardship in an urbanizing world: beyond city limits [PDF]

, 2012
Cities are rapidly increasing in importance as a major factor shaping the Earth system, and as such must take corresponding responsibility. With currently over half of the world population, cities are supported by resources originating from primarily ...
Elmqvist, Thomas, Lorraine Sugar, Svedin, U., Elmqvist, T., Mbow, Cheikh, Sinclair, Paul, Stafford-Smith, M., Shobhakar, Dhakal, Cheikh Mbow, Steffen, Will, Alfsen, Christine, Neda Farahbakhshazad, Uno Svedin, Gaffney, O., Biermann, F.H.B., Dearing, J.A., McMichael, A.J., Stafford Smith, M., Ninad R. Bondre, Adbullah, Saiful Arif, Haberl, H., Crumley, Carole, Pinho, Patricia Fernanda, Sinclair, Paul,, Biermann, Frank, McMichael, Anthony J., Olsson, P., Broadgate, Wendy J., Morais, J., Haberl, Helmut, Joao M. F. deMorais, Christine Alfsen, Seitzinger, Sybil P., Farahbakhshazad, N., Svedin, Uno, Patricia Fernanda Pinho, Deutsch, Lisa, Dearing, John A., Olsson, Per, Lavorel, S., deMorais, Joao M.F., Frank Biermann, Saiful Arif Abdullah, Sugar, Lorraine, Will Steffen, Crumley, Carole L.,, Dhakal, S., Smith, Mark Stafford, Steffen, W., Biermann, F., Dhakal, Shobhakar, Abdullah, Saiful Arif, Per Olsson, Seto, K.C., Crumley, C.L., Shobhakar Dhakal, Pinho, P, Bondre, Nanid R., Bondre, N.R., deMorais, Joao M. F., Farahbakhshazard, N., Pinho, P., Gaffney, Owen, Wendy J. Broadgate, Paul Sinclair, Deutsch, L., Karen C. Seto, Broadgate, W.J., Sybil P. Seitzinger, Lavorel, Sandra, Abdullah, S.A., Seitzinger, S.P., Alfsen, C., Lisa Deutsch, Farahbakhshazad, Neda, Seto, Karen C., Owen Gaffney, Sandra Lavorel, Sugar, L., Helmut Haberl, Bondre, Ninad R., John A. Dearing, Mbow, C., Sinclair, P., Crumley, C., Demorais, J.M., Thomas Elmqvist, Pinho, P.F., Mbow, Cheik, Anthony J. McMichael, Carole L. Crumley, Mark Stafford Smith   +91 more
core   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Statistical Geochemical Constraints on Present-day Water Outgassing as a Source of Secondary Atmospheres on the TRAPPIST-1 Exoplanets

The Planetary Science Journal
The TRAPPIST-1 planetary system is observationally favorable for studying if planets orbiting M stars can retain atmospheres and host habitable conditions.
Trent B. Thomas, Victoria S. Meadows, Joshua Krissansen-Totton, Megan T. Gialluca, Nicholas F. Wogan, David C. Catling   +5 more
doaj   +1 more source

The self‐secondary crater population of the Hokusai crater on Mercury

Geophysical Research Letters, 2016
Whether or not self‐secondaries dominate small crater populations on continuous ejecta deposits and floors of fresh impact craters has long been a controversy. This issue potentially affects the age determination technique using crater statistics.
Zhiyong Xiao, Nils C. Prieur, Stephanie C. Werner   +2 more
doaj   +1 more source

Lunar and Planetary Science twenty-four

, 1993
You must extract the zipped files before using. To begin viewing the abstracts, click on the file "index.html."The topics covered include the following: meteorites, meteoritic composition, geochemistry, planetary geology, planetary composition, planetary

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