Results 121 to 130 of about 230,654 (298)

Phase-field collagen fibrils: Coupling chirality and density modulations

Physical Review Research, 2020
To describe the interaction between longitudinal density modulations along collagen fibrils (the D band) with a radial twist field of molecular orientation (double twist), we couple a phase-field crystal (PFC) with liquid-crystalline free energies to ...
Samuel Cameron, Laurent Kreplak, Andrew D. Rutenberg   +2 more
doaj   +1 more source

B -> J/psi K^* Decays in QCD Factorization

, 2002
The hadronic decay B -> J K^* is analyzed within the framework of QCD factorization. The spin amplitudes A_0, A_\parallel and A_\perp in the transversity basis and their relative phases are studied using various different form-factor models for B-K ...
A. Ali, A.S. Dighe, B. Aubert, C.P. Jessop, D. Melikhov, G. Buchalla, H.Y. Cheng, H.Y. Cheng, H.Y. Cheng, H.Y. Cheng, Hai-Yang Cheng, J.G. Körner, K. Abe, K.C. Yang, Kwei-Chou Yang, L. Del Debbio, M. Bauer, M. Beneke, M. Beneke, M. Gourdin, M. Neubert, M. Suzuki, M. Wirbel, P. Ball, P. Ball, P. Ball, P. Ball, T. Affolder, T.E. Coan, W-Y.P. Hwang, W.S. Hou, Y.H. Chen, Y.Y. Keum, Y.Y. Keum, Y.Y. Keum, Yong-Yeon Keum   +35 more
core   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

Advanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu, Saba Firouznia, Charl F. J. Faul, Majid Taghavi, Jonathan Rossiter   +4 more
wiley   +1 more source

The Structure of TGB$_C$ Phases

, 2003
We study the transition from the cholesteric phase to two TGB$_C$ phases near the upper critical twist $k_{c2}$: the Renn-Lubensky TGB$_C$ phase, with layer normal rotating in a plane perpendicular to the pitch axis, and the Bordeaux TGB$_C$ phase, with ...
A.A. Abrikosov, Arindam Kundagrami, H.T. Nguyen, I. Dozov, I. Luk’yanchuk, J.W. Goodby, Jing-huei Chen, L. Navailles, L. Navailles, L.J. Martinez-Miranda, P. de Gennes, P.A. Pramod, S.R. Renn, S.R. Renn, T. C. Lubensky, T.C. Lubensky   +15 more
core   +1 more source

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

Advanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao, Fan Li, Jiajie Gao, Elric Zhang, Yingdong Su, Ni Qin, Hao Ye, Josep Puigmartí, Giuseppe Cantarella, Simone Schuerle, Jiang Wu, Bradley J. Nelson, Salvador Pané   +12 more
wiley   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Free-space Optical Communication based on Augmentation of OAM Modes

Guangtongxin yanjiu
【Objective】Atmospheric and oceanic turbulence causes the mode fading of optical Orbital Angular Momentum (OAM), thus being one of the main factors that deteriorate the performance of OAM-based Free-Space Optical Communications (FSOC) systems.
DAI Weijie, SU Xiaofeng, LIU Xiaoqian, ZHANG Liyan, WEI Tiankuo, SONG Jian, DONG Yuhan   +6 more
doaj  

Topological phases in twisted Rashba superconductors

Physical Review B
We study the topological properties of a twisted superconducting bilayer with spin-singlet pairings and Rashba spin-orbital coupling. By introducing the chirality basis, we obtain the effective odd-parity superconductors with the help of spin-orbital coupling. For the twisted bilayer with $d$-wave pairings, two non-Abelian topological phases with Chern
Conghao Lin, Xiancong Lu
openaire   +2 more sources

Roll‐to‐Roll Mechanical Exfoliation for Large‐Area van der Waals Films with Preserved Crystallographic Alignment

Advanced Functional Materials, EarlyView.
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo, Francisco Fernandez‐Canizares, Yigit Sozen, Thomas Pucher, Pedro L Alcázar Ruano, Carmen Munuera, Ryo Ishikawa, Naoya Shibata, María Varela, Der‐Yuh Lin, Bing Wu, Jorge Quereda, Zdenek Sofer, Gabriel Sánchez‐Santolino, Andres Castellanos‐Gomez   +14 more
wiley   +1 more source

Twist-averaged Boundary Conditions in Continuum Quantum Monte Carlo

, 2001
We develop and test Quantum Monte Carlo algorithms which use a``twist'' or a phase in the wave function for fermions in periodic boundary conditions. For metallic systems, averaging over the twist results in faster convergence to the thermodynamic limit ...
A. Baldereschi, A. J. Leggett, B. J. Alder, B. Krlik, C. Filippi, C. Gros, C. Gros, C. Herring, C. Lin, D. Ceperley, D. Ceperley, D. Ceperley, D. G. Kendall, D. M. Ceperley, D. M. Ceperley, D. M. Ceperley, D. Poilblanc, E. Stoner, E. Stoner, E. Y. Loh, Jr., F. H. Zong, G. Ortiz, G. Ortiz, G. Rajagopal, G. Rajagopal, H. J. Monkhorst, I. Souza, J. Tinka Gammel, L. M. Fraser, M. Parrinello, N. Byers, N. W. Ashcroft, P. Hohenberg, P. R. C. Kent, R. A. Suris, R. Jullien, R. M. Dreizler, R. Valenti, S. Fahy, S. Moroni, V. Natoli, W. M. C. Foulkes, X. P. Li, Y. Kwon, Y. Kwon, Y. Kwon   +45 more
core   +1 more source