Results 111 to 120 of about 6,189 (307)
Phases of tree-decorated Dynamical Triangulations in 3D
Journal of High Energy PhysicsThis work revisits the Euclidean Dynamical Triangulation (DT) approach to non-perturbative quantum gravity in three dimensions. Inspired by a recent combinatorial study [1] of a subclass of 3-sphere triangulations constructed from trees, called the ...
Timothy Budd, Dániel Németh
doaj +1 more source
Screw‐Based Pill for Intelligent Robotic Extraction of Viscous Fluids in Medical Applications
Advanced Intelligent Systems, EarlyView.Screw‐based pill for intelligent robotic extraction (S‐PIRE) is a magnetically actuated smart capsule with a motorized screw, 3‐axis sensor, and Bluetooth control for site‐specific and minimally invasive remote sampling of viscous fluids, overcoming passive diffusion limitations.
Prima Dewi Sinawang +6 more
wiley +1 more source
Crater Observing Bioinspired Rolling Articulator (COBRA)
Advanced Intelligent Systems, EarlyView.Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame +4 more
wiley +1 more source
Testing quantum gravity with primordial gravitational waves
Journal of High Energy PhysicsWe propose a testable alternative to inflation directly built in a very general class of ultraviolet complete theories of quantum gravity enjoying Weyl invariance.
Gianluca Calcagni, Leonardo Modesto
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A Robotic Urinary Bladder Enabling Volume Monitoring and Assisted Micturition
Advanced Intelligent Systems, EarlyView.An implantable robotic bladder is presented that can store urine in an origami‐designed enclosure. An inductance sensing principle can monitor and transfer the urine volume in real‐time. It can actively expand based on the amount of urine collected from kidneys and apply on‐demand mechanical compression to assist urination.
Izadyar Tamadon +4 more
wiley +1 more source
Exactly solvable models of two-dimensional dilaton gravity and quantum eternal black holes [PDF]
, 1999 О. Б. Заславский
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Spontaneous collapse models lead to the emergence of classicality of the Universe
Journal of High Energy PhysicsAssuming that Quantum Mechanics is universal and that it can be applied over all scales, then the Universe is allowed to be in a quantum superposition of states, where each of them can correspond to a different space-time geometry.
José Luis Gaona-Reyes +3 more
doaj +1 more source
Advanced Intelligent Systems, EarlyView.Legged robots have advanced in environmental interaction through contact, but most works rely on fixed contact sequences. This work presents a new method based on an indirect optimization method for legged robots to automatically generate contact sequences for complex movements.
Yaowei Chen, Jie Zhang, Ming Lyu
wiley +1 more source
Early universe in quantum gravity
Journal of High Energy PhysicsWe present a new picture of the early universe in finite nonlocal quantum gravity, which is Weyl invariant at the classical and quantum levels. The high-energy regime of the theory consists of two phases, a Weyl invariant trans-Planckian phase and a post-
Leonardo Modesto, Gianluca Calcagni
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Advanced Intelligent Systems, EarlyView.This study presents a compact, three IMU wearable system that enables accurate motion capture and robust gait‐feature extraction, thereby supporting reliable machine learning‐based balance evaluation. Accurate assessment of balance is critical for fall prevention and targeted rehabilitation, particularly in older adults and individuals with ...
Seok‐Hoon Choi +8 more
wiley +1 more source