Results 111 to 120 of about 59,677 (306)
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
Living Reviews in Relativity, 2008 Quantum gravity is expected to be necessary in order to understand situations in which classical general relativity breaks down. In particular in cosmology one has to deal with initial singularities, i.e., the fact that the backward evolution of a ...
Bojowald Martin
doaj
Cosmological Constant from Condensation of Defect Excitations
Universe, 2018 A key challenge for many quantum gravity approaches is to construct states that describe smooth geometries on large scales. Here we define a family of (2+1)-dimensional quantum gravity states which arise from curvature excitations concentrated at point ...
Bianca Dittrich
doaj +1 more source
Invariant Connections in Loop Quantum Gravity [PDF]
Communications in Mathematical Physics, 2016 Given a group $G$ and an abelian $C^*$-algebra $\mathfrak{A}$, the antihomomorphisms $ \colon G\rightarrow \mathrm{Aut}(\mathfrak{A})$ are in one-to-one with those left actions $ \colon G\times \mathrm{Spec}(\mathfrak{A})\rightarrow \mathrm{Spec}(\mathfrak{A})$ whose translation maps $ _g$ are continuous; whereby continuities of $ $ and $ $ turn ...
openaire +3 more sources
Haptic Perception via the Dynamics of a Flexible Body Inspired by an Ostrich's Neck
Advanced Intelligent Systems, EarlyView.Inspired by avian anatomy, this study uses a flexible robotic neck to investigate haptic perception driven by musculoskeletal dynamics. By applying physical reservoir computing, the robot encodes external force interactions into its body dynamics, allowing effective object classification.
Kazashi Nakano +3 more
wiley +1 more source
Angewandte Chemie, EarlyView.Capture‐SELEX for ampicillin aptamers led to the dominance of a low‐affinity aptamer, while extending the target‐library incubation time significantly increased the abundance of a high‐affinity aptamer, revealing a previously unrecognized kinetic effect in the DNA strand displacement reaction during SELEX.
Yuzhe Ding +4 more
wiley +2 more sources
Canonical structure of general relativity with a limiting curvature and its relation to loop quantum gravity [PDF]
, 2017 Chamseddine and Mukhanov recently proposed a modified version of general relativity that implements the idea of a limiting curvature. In the spatially flat, homogeneous, and isotropic sector, their theory turns out to agree with the effective dynamics of
N. Bodendorfer +2 more
semanticscholar +1 more source
Gravitational Collapse in Loop Quantum Gravity [PDF]
International Journal of Theoretical Physics, 2007 16 pages, 2 ...
openaire +2 more sources
Fully Integrated Silicone Electromagnetic Actuators for Untethered and Bio‐Inspired Soft Robotics
Advanced Intelligent Systems, EarlyView.GA: A new class of soft electromagnetic actuators, with embedded coils and magnets, is here presented to enhance portability and usability outside structured environments. These actuators, fabricated through a custom additive manufacturing‐assisted process, offer high responsiveness, energy efficiency, and stretchability.
Antonio Pavone +4 more
wiley +1 more source
Living Reviews in Relativity, 2005 Quantum gravity is expected to be necessary in order to understand situations where classical general relativity breaks down. In particular in cosmology one has to deal with initial singularities, i.e., the fact that the backward evolution of a classical
Bojowald Martin
doaj