Results 171 to 180 of about 9,166,032 (298)

Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

open access: yesAdvanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron   +4 more
wiley   +1 more source

“SOFT-SEDIMENT” AND DEEP-SEATED GRAVITATIONAL SLOPE DEFORMATIONS MECHANISMS IN THE SOUTH POLAR LAYERED DEPOSITS (PROMETHEI LINGULA, MARS): GEOLOGIC AND CLIMATIC IMPLICATIONS

open access: yes, 2013
Our study is the first attempt at a semi-quantitative structural and kinematic analysis of large-scale deformational systems observed in the South Polar Layered Deposits in the Promethei Lingula margins (Mars).
BROZZETTI, Francesco   +2 more
core  

Phenomenological Modelling and Fault Diagnosis of Planetary Gear Systems with a Tooth Crack

open access: yesJixie chuandong
Fault mechanism is the basis of fault diagnosis, and modelling is an important means to investigate the fault mechanism. The existing research on modelling of planetary gear systems mainly includes the dynamic modelling and the phenomenological modelling.
Liu Zongyao   +5 more
doaj  

Antimicrobial Resistance Under a Changing Climate. [PDF]

open access: yesJ R Soc N Z
Bolton A   +5 more
europepmc   +1 more source

Spectral‐Kinetic Synergy in Au‐Network Engineered FeTiO3: A Multi‐Field Coupling Strategy for Lunar In Situ Resource Utilization

open access: yesAdvanced Science, EarlyView.
How can humanity achieve lunar self‐sufficiency? We utilize Au topology networks to modify the abundant lunar ilmenite. This catalyst, under sunlight, can convert waste carbon dioxide into space fuel. This design leverages the moon's natural vacuum for green manufacturing, avoiding the waste of gold and serving as “artificial chloroplasts” to sustain ...
Yahang Wang   +9 more
wiley   +1 more source

Decoupling Electronic–Ionic Transport and Catalysis Enables High‐Performance, Chemically Stable Sr‐Free Air Electrodes for High‐Temperature Solid Oxide Cells

open access: yesAdvanced Science, EarlyView.
A Sr‐free air electrode for high‐temperature solid oxide cells is designed by independently tailoring electronic conduction, ionic transport, and surface catalysis using complementary Sr‐free phases and infiltrated nanocatalysts. It delivers performance comparable to state‐of‐the‐art Sr‐containing electrodes while completely suppressing Cr‐induced ...
Ji‐eun Won   +10 more
wiley   +1 more source

Emergence of biosignatures on Earth and implications for life detection. [PDF]

open access: yesProc Natl Acad Sci U S A
Barge LM   +3 more
europepmc   +1 more source

High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy

open access: yesAdvanced Science, EarlyView.
A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Shuai Ding   +9 more
wiley   +1 more source

Cultivating a <i>Glocal</i> Virtual Classroom for Planetary Health. [PDF]

open access: yesPublic Health Chall
Cunanan DJ   +5 more
europepmc   +1 more source

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