Results 111 to 120 of about 410,177 (299)

Algebraic stability analysis of constraint propagation

, 2005
The divergence of the constraint quantities is a major problem in computational gravity today. Apparently, there are two sources for constraint violations.
Bartnik R, Fischer H, Fisher A, Frauendiener J, Frauendiener J, Friedrich H, Frittelli S, Frittelli S, Frittelli S, Frittelli S, Gantmacher F R, Holst M Lindblom L Owen R Pfeiffer H P Scheel M A Kidder L E, Husa S, J Frauendiener, Kreiss H O, Parks P C, Penrose R, Shinkai H-A, Shinkai H-A Yoneda G, Stewart J, Szilágyi B, Szilágyi B, Szilágyi B, T Vogel, Tiglio M, Vogel T, Yoneda G   +26 more
core   +1 more source

Expanding Chemical Space of Nucleic Acid Nanoparticles for Tunable Antiviral‐Like Immunomodulatory Responses and Potent Adjuvant Activity

Advanced Functional Materials, EarlyView.
We introduce a nucleic acid nanoparticle (NANP) platform designed to be rrecognized by the human innate immune system in a regulated manner. By changing chemical composition while maintaining constant architectural parameters, we identify key determinants of immunorecognition enabling the rational design of NANPs with tunable immune activation profiles
Martin Panigaj, Hannah S. Newton, Jian Wang, Laxmi Pandey, Yelixza I. Avilla, Phong Nguyen, Morgan Chandler, Justin Halman, Yasmine Radwan, Stephanie Smith, Elijah Edmondson, Simone Difilippantonio, Chelsea Sanders, Bao Tran, Yongmei Zhao, Shaojun Xie, Edward Cedrone, Barry W. Neun, Meni Wanunu, Nikolay V. Dokholyan, Marina A. Dobrovolskaia, Kirill A. Afonin   +21 more
wiley   +1 more source

Study of fluidelastic instability in the streamwise and transverse directions through tube array under two-phase flow conditions using pressure effects

Nuclear Engineering and Technology
The fluidelastic instability (FEI) in heat exchanger tubes has been of widespread concern due to its tendency to cause damage to the tubes. Generally, FEI in the transverse direction of the tube occurs earlier than in the streamwise direction, and the ...
Sijiu Qi, Wei Tan, Ke Zhang, Yuancen Wang, Wenjing Lin, Peize Han, Guorui Zhu   +6 more
doaj   +1 more source

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

Advanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini, Daniël Grosfeld, Bruno Branco, Guus J. W. Aalbers, Lana M. Kessels, Willemijn H. M. Remmerswaal, Nicolas Daub, Kunal Datta, Martijn M. Wienk, René A. J. Janssen   +9 more
wiley   +1 more source

Boosting Policy Learning in Reinforcement Learning via Adaptive Intrinsic Reward Regulation

IEEE Access
Reinforcement learning employs heuristic intrinsic rewards to facilitate effective learning and exploration of the environment by intelligent agents. Particularly in environments with sparse rewards, it’s challenging for agents to reach goals or ...
Qian Zhao, Jinhui Han, Mao Xu
doaj   +1 more source

The Zakharov–Kuznetsov equation for weakly nonlinear dust-acoustic waves in a magnetized nonthermal plasma with opposite polarity dust [PDF]

AIP Advances
The propagation properties and instability of dust-acoustic solitary waves (DASWs) are investigated in a dusty plasma consisting of inertial dust species of both positive and negative charge, non-inertial ions following Maxwellian distribution, and non ...
A. Haque, S. Sultana, A. Mannan, M. M. Orani, A. A. Mamun   +4 more
doaj   +1 more source

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

Advanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio, Martina Mugnano, Valentina Marchesano, Alejandro Calabuig, Zhe Wang, Gennaro Giordano, Francesca Borrelli, Simonetta Grilli, Pietro Ferraro   +8 more
wiley   +1 more source

Intrinsic instability of lean hydrogen/ammonia premixed flames: Influence of Soret effect and pressure

Fuel Communications
The addition of hydrogen in ammonia/air mixtures can lead to the onset of intrinsic flame instabilities at conditions of technical relevance. The length and time scales of intrinsic instabilities can be estimated by means of linear stability analysis of ...
F. D’Alessio, C. Matteucci, P.E. Lapenna, F. Creta   +3 more
doaj   +1 more source

Quasi Harmonic Lattice Dynamics and Molecular Dynamics calculations for the Lennard-Jones solids

, 1998
We present Molecular Dynamics (MD), Quasi Harmonic Lattice Dynamics (QHLD) and Energy Minimization (EM) calculations for the crystal structure of Ne, Ar, Kr and Xe as a function of pressure and temperature.
A. J. Eatwell, A. J. Pertsin, C. Kittel, D. J. Lacks, D. L. Loose, D. N. Batchelder, D. R. Sears, Elisabetta Venuti, H. C. Andersen, J. A. Barker, J. F. Fox, J. L. Tallon, J. O. Hirschfelder, K. F. Herzfeld, K. Syassen, L. A. Schwalbe, L. L. Boyer, L. L. Boyer, L. L. Boyer, L. Verlet, M. Born, M. Born, M. Grimsditch, M. J. Sewell, M. P. Allen, M. Ross, M. S. Anderson, M. S. Anderson, O. G. Peterson, P. Korpiun, R. G. Della Valle, R. G. Della Valle, R. G. Della Valle, R. K. Crawford, R. K. Pathria, Raffaele Guido Della Valle, T. H. K. Barron, V. N. Zharkov   +37 more
core   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source