Results 111 to 120 of about 359,409 (274)

Single mode levitation and translation [PDF]

, 1988
A single frequency resonance mode is applied by a transducer to acoustically levitate an object within a chamber. This process allows smooth movement of the object and suppression of unwanted levitation modes that would urge the object to a different ...
Allen, James L., Barmatz, Martin B.
core   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Low Vibration Control Scheme for Permanent Magnet Motor Based on Resonance Controllers

Energies
For an electric locomotive traction motor, it is necessary to maintain relatively low vibration and noise due to the higher design standards. By using effective motor control strategies and implementing current harmonic suppression schemes, motor ...
Chi Ma, Wenzhong Xu, Mingtian Liu, Jianfeng Hong   +3 more
doaj   +1 more source

Suppression and facilitation of human neural responses

eLife, 2018
Efficient neural processing depends on regulating responses through suppression and facilitation of neural activity. Utilizing a well-known visual motion paradigm that evokes behavioral suppression and facilitation, and combining five different ...
Michael-Paul Schallmo, Alexander M Kale, Rachel Millin, Anastasia V Flevaris, Zoran Brkanac, Richard AE Edden, Raphael A Bernier, Scott O Murray   +7 more
doaj   +1 more source

Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors

Advanced Functional Materials, EarlyView.
This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu, Takashi Hisatomi, Tsuyoshi Takata, Kazunari Domen   +3 more
wiley   +1 more source

Solvent suppression in fourier transform nuclear magnetic resonance

Journal of Magnetic Resonance (1969), 1983
Abstract New pulse sequences for solvent suppression in Fourier transform NMR are derived and evaluated. They are designed to be insensitive to the most common spectrometer imperfections so as to give efficient elimination of a solvent resonance without fine adjustment of experimental conditions.
openaire   +2 more sources

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

Advanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández, Álex Farrando Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla, José A. Quintana, Yanpei Wan, Daniel Aranda, José Manuel Marín‐Beloqui, Jishan Wu, Zebing Zeng, María A. Díaz‐García, Juan Casado   +12 more
wiley   +1 more source

Suppressing resonant vibrations via energy transfer concepts

Structural Control and Health Monitoring, 2006
A possible alternative approach to the use of classical damping methods for suppressing resonant vibration is presented in this paper. The work is conceptual in that it demonstrates, in principle, how energy can be transferred to higher harmonics by a non-linear element so as to avoid/minimize resonant behaviour.
G. R. Tomlinson, Z. Q. Lang, S. A. Billings, F. Xie   +3 more
openaire   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source