Results 101 to 110 of about 137,892 (317)
Advanced Materials, EarlyView.This review systematically examines the nanomechanical mechanisms of mussel‐inspired molecular interactions, primarily investigated by direct force measurement techniques such as surface forces apparatus and atomic force microscopy. The macroscopic adhesive and self‐healing performances of mussel‐inspired functional materials, including coacervates ...
Pan Huang, Hongjian Zhang, Hongbo Zeng
wiley +1 more source
Gluing polyhedra with entanglement in loop quantum gravity [PDF]
Physical Review D, 2018 In a spin-network basis state, nodes of the graph describe unentangled quantum regions of space, quantum polyhedra. In this paper we show how entanglement between intertwiner degrees of freedom enforces gluing conditions for neighboring quantum polyhedra.
Bekir Baytacs +2 more
semanticscholar +1 more source
Ultra‐High Sensitivity, Wide‐Range Thermometry Based on High‐Quality Microscale Diamond Resonators
Advanced Materials, EarlyView.By combing high‐crystal quality single‐crystal diamond MEMS cantilevers with multi‐mode resonance, the groundbreaking microscale ultra‐high sensitivity ≈22 nK Hz−1/2 and resolution of 100 µK thermometry is achieved. The diamond MEMS thermometry can operate over a wide temperature range from 6.5 to 380 K. This work underscores diamond MEMS resonators as
Wen Zhao +5 more
wiley +1 more source
Living Reviews in Relativity, 1998 The problem of finding the quantum theory of the gravitational field, and thus understanding what is quantum spacetime, is still open. One of the most active of the current approaches is loop quantum gravity. Loop quantum gravity is a mathematically well-
Rovelli Carlo
doaj
Introduction to Loop Quantum Cosmology
Symmetry, Integrability and Geometry: Methods and Applications, 2012 This is an introduction to loop quantum cosmology (LQC) reviewing mini- and midisuperspace models as well as homogeneous and inhomogeneous effective dynamics.
Kinjal Banerjee +2 more
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Loop quantum gravity and the cyclic universe [PDF]
Physical Review D, 2004 6 pages, 4 figures; v2: minor changes to match PRD ...
Parampreet Singh +3 more
openaire +6 more sources
Advanced Materials, EarlyView.Nanoscale metal–organic frameworks (MOFs) and nanocellulose composites have significant potential for the multi‐functional remediation of the environment. This review focused on the synthesis strategies (in situ growth, ex situ growth, and other approaches), typical forms (aerogel, hydrogel, beads, and membrane), and applications in the removal of ...
Ye Song +13 more
wiley +1 more source
Big Crunch Avoidance in k = 1 Semi-Classical Loop Quantum Cosmology [PDF]
, 2003 It is well known that a closed universe with a minimally coupled massive scalar field always collapses to a singularity unless the initial conditions are extremely fine tuned. We show that the corrections to the equations of motion for the massive scalar
A. Ashtekar +41 more
core +3 more sources
Thermally Actuated Soft Robotics
Advanced Materials, EarlyView.This review focuses on the recent development of thermally actuated soft robotics, highlighting the four major heating mechanisms, as well as structural designs, thermal management, material innovations, and emerging applications. A summary and outlook section present the current challenges of thermally actuated soft robots and the future directions to
Shuang Wu +2 more
wiley +1 more source
European Physical Journal C: Particles and Fields, 2023 A rotating black hole in loop quantum gravity was constructed by Brahma, Chen, and Yeom based on a nonrotating counterpart using the revised Newman–Janis algorithm recently.
Yang Huang, Zhoujian Cao
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