Results 111 to 120 of about 290,088 (288)

Self-gravity in thin protoplanetary discs

Astronomy & Astrophysics
Context. Planet-forming discs are increasingly found to harbour internal structures such as spiral arms. The origin and evolution of these is often associated with the disc’s own gravitational force.
Rendon Restrepo S., Rometsch T., Ziegler U., Gressel O.   +3 more
doaj   +1 more source

Resummation and Higher Order Renormalization in 4D Quantum Gravity

, 2002
Higher order renormalization in 4D quantum gravity is carried out using dimensional regularization with great care concerning the conformal-mode dependence. In this regularization, resummation can be automatically carried out without making an assumption
Hamada, Ken-ji
core   +1 more source

3D‐Printable, Honeycomb‐Inspired Tissue‐Like Bioelectrodes for Patient‐Specific Neural Interface

Advanced Materials, EarlyView.
3D printed MRI‐compatible tissue‐like neural electrodes tailored to individual gyral patterns. This honeycomb‐inspired printable gel electrode (HiPGE) employs a bioinspired architecture with soft hydrogels, engineered to match the softness of brain tissue.
Marzia Momin, Luyi Feng, Xiaoai Chen, Salahuddin Ahmed, Basma AlMahmood, Li‐Pang Huang, Jiashu Ren, Xinyi Wang, Hyunjin Lee, Samuel R. Cramer, Nanyin Zhang, Sulin Zhang, Tao Zhou   +12 more
wiley   +1 more source

Sine-dilaton gravity vs double-scaled SYK: exploring one-loop quantum corrections

Journal of High Energy Physics
We provide non-trivial checks of the recently proposed duality between double-scaled SYK and a 2d dilaton gravity model with sine potential, studying the path integral at one-loop level.
Leonardo Bossi, Luca Griguolo, Jacopo Papalini, Lorenzo Russo, Domenico Seminara   +4 more
doaj   +1 more source

Spontaneous compactification in 2D induced quantum gravity

, 1992
Spontaneous compactification ---on a $R^1\times S^1$ background--- in 2D induced quantum gravity (considered as a toy model for more fundamental quantum gravity) is analyzed in the gauge-independent effective action formalism.
Elizalde, E., Odintsov, S. D.
core   +2 more sources

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Turbulent Spectrum of 2D Internal Gravity Waves

Physical Review Letters
We find the turbulent energy spectrum of weakly interacting 2D internal gravity waves using the full, non-hydrostatic dispersion relation. This spectrum is an exact solution of a regularized kinetic equation, from which the zero-frequency shear modes have been excised by a careful limiting process. This is a new method in wave kinetic theory.
Michal Shavit, Oliver Bühler, Jalal Shatah   +2 more
openaire   +3 more sources

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source

Euclidian 2D Gravity with Torsion

, 1993
Closing a gap in the literature on the subject, the local solutions of 2D-gravity with torsion are given for Euclidian signature. For the topology of a cylinder the system is quantized.
Schaller, P., Strobl, T.
openaire   +2 more sources

2D String Theory Coupled to Quantum Gravity

, 1993
We consider self-avoiding Nambu-Goto open strings on a random surface. We have shown that the partition function of such a string theory can be calculated exactly. The string susceptibility for the disk is evaluated to be $-\frac{1}{2}$. We also consider
Brézin, Brézin, Casher, David, Distler, Dotsenko, Douglas, Duplantier, Fradkin, Fujikawa, Gross, Itzykson, Kazakov, Knizhnik, Migdal, Moore, Nobuyuki Ishibashi, t' Hooft, Wilson   +18 more
core   +2 more sources