Results 31 to 40 of about 176,188,335 (190)

A new class of group field theories for 1st order discrete quantum gravity [PDF]

, 2008
Group Field Theories, a generalization of matrix models for 2d gravity, represent a 2nd quantization of both loop quantum gravity and simplicial quantum gravity.
Afd Theoretical Physics (ITF), Oriti, D., Tlas, T., Quantum Gravity, Strings and Elementary Particles   +3 more
core  

Is Gravity an Entropic Force? [PDF]

, 2011
The remarkable connections between gravity and thermodynamics seem to imply that gravity is not fundamental but emergent, and in particular, as Verlinde suggested, gravity is probably an entropic force.
Shan, Gao, Shan Gao
core   +1 more source

Gravity, Electrostatic and Thermal Fields of Slightly Flattened Triaxial Ellipsoidal Conductors via Spherical Harmonic Expansions with Irrational Polar Distance Powers

Mathematics
We present gravitational, electrostatic and thermal field intensities as series of spherical harmonics with the polar distance raised to irrational powers.
Gerassimos Manoussakis, George Fragoyiannis, Panayiotis Vafeas   +2 more
doaj   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

Advanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye, Bangzhi Ge, Yuan Yu, Chongjian Zhou   +3 more
wiley   +1 more source

Gauge Gravity and the Unification of Natural Forces [PDF]

, 2001
Physics seems to tell us that there are four fundamental force-fields in nature: the gravitational, the electromagnetic, the weak, and the strong force-field (or interactions).
Liu, Chuang
core  

GRAIL Gravity Field Determination Using the Celestial Mechanics Approach [PDF]

, 2014
The NASA mission GRAIL (Gravity Recovery and Interior Laboratory) inherited its concept from the GRACE (Gravity Recovery and Climate Experiment) mission to determine the gravity field of the Moon.
Arnold, Daniel, D. Arnold, Mervart, Leo, G. Beutler, Bertone, Stefano, Beutler, Gerhard, Mervart, Leos, S. Bertone, A. Jäggi, Jäggi, Adrian, L. Mervart   +10 more
core   +8 more sources

Increased Disarray of Extracellular Matrix Collagen‐I Fiber Network and Compromised Biomechanics in Aortae From Marfan‐Syndrome Mice Assessed Through Combined Opto‐Biomechatronics

Advanced Science, EarlyView.
Combined structure‐function assessment in aortic rings from Marfan mice using MechaMorph Opto‐Biomechatronics technology relates increased elasticity (stiffness) and dynamic viscosity and less ordered extracellular matrix 3D‐structure (collagen) as potential causes for impaired Windkessel function and compromised haemodynamics in Marfan's syndrome ...
Dominik Schneidereit, Anika Nagel, Vanessa I. T. Zwaans, Laureen Schurr, Jonas Ahr, Michael Haug, Anna Piluso, Alexandra Sporkova, Matthias Karck, Andreas H. Wagner, Oliver Friedrich   +10 more
wiley   +1 more source

Simulation of the Tianwen-4 Mission Contribution to Jupiter Gravity Field Improvement

The Astrophysical Journal
This study comprehensively evaluates the impact of the expected Chinese Tianwen-4 mission, in conjunction with the existing data from the Juno mission, on enhancing the understanding of Jupiter’s gravity field.
Zohaib Afzal, Jianguo Yan, Dominic Dirkx, Yong Huang, Zhen Wang, Zeeshan Haider, Jean-Pierre Barriot   +6 more
doaj   +1 more source

Programmable Information Processing With Reconfigurable Self‐Contact Variable Stiffness Mechanical Metamaterial

Advanced Science, EarlyView.
Reconfigurable self‐contact variable stiffness metamaterials based on shape memory polymers enable programmable stiffness switching. Static arrays store and encrypt information with immunity to electromagnetic interference, while asymmetric stiffness converts symmetric vibration into directional matter transport.
Huadong Qin, Wenyu Zhu, Xin Wang, Cheng Shen, Li Cheng, Tian Jian Lu, Terence Xiaoteng Liu, Han Meng   +7 more
wiley   +1 more source

An Extracellular Pore‑Targeting Peptide Defines a Designable Allosteric Site in TRPV2

Advanced Science, EarlyView.
Structure‐guided peptide engineering yields Depiv2, a highly potent and subtype‐selective TRPV2 inhibitor that binds to the extracellular pore and remodels it into a closed, non‐conductive state. Depiv2 suppresses pathological cardiac hypertrophy, establishing the TRPV2 outer pore as a designable interface for selective peptide modulation.
Aiqin Zhu, Hongkun Wang, Jiawei Wang, Xiaolu Liu, Aerziguli Aierken, Lizhen Xu, Ping Liang, Fan Yang   +7 more
wiley   +1 more source