Results 111 to 120 of about 396,063 (301)

Neurovascular Decoupling Is Associated With Lobar Intracerebral Hemorrhages and White Matter Hyperintensities

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Neurovascular coupling is a fundamental aspect of brain function by regulating cerebral blood flow in response to regional neuronal activity.
Suzanne E. van Dijk, Nadieh Drenth, Anne Hafkemeijer, Gerda Labadie, Marie‐Noëlle W. Witjes‐Ané, Frank Baas, Jeroen P. Vreijling, Gerard J. Blauw, Serge A. R. B. Rombouts, Jeroen van der Grond, Sanneke van Rooden   +10 more
doaj   +1 more source

Collective Strong Coupling with Homogeneous Rabi Frequencies using a 3D Lumped Element Microwave Resonator

, 2016
We design and implement 3D lumped element microwave cavities for the coherent and uniform coupling to electron spins hosted by nitrogen vacancy centers in diamond. Our design spatially focuses the magnetic field to a small mode volume.
Angerer, Andreas, Astner, Thomas, Isoya, Junichi, Majer, Johannes, Onoda, Shinobu, Putz, Stefan, Sumiya, Hitoshi, Wirtitsch, Daniel   +7 more
core   +2 more sources

Mechanochemistry‐Assisted Solvent‐Free Supramolecular Engineering for Atomic‐Layered Carbon Nitride Nanosheets with Enhanced Photocatalytic Hydrogen Evolution

Advanced Functional Materials, EarlyView.
A solvent‐free mechanochemistry‐enabled supramolecular engineering strategy is developed to directly synthesize covalent‐interconnected two‐dimensional atomic‐layered carbon nitride nanosheets photocatalyst, bypassing conventional top‐down exfoliation requirements.
Fanglei Yao, Jingwen Sun, Huiru Duan, Yongsheng Fu, Jin Wang, Liming Dai, Jingsan Xu, Junwu Zhu   +7 more
wiley   +1 more source

Spin dependent recombination based magnetic resonance spectroscopy of bismuth donor spins in silicon at low magnetic fields

, 2012
Low-field (6-110 mT) magnetic resonance of bismuth (Bi) donors in silicon has been observed by monitoring the change in photoconductivity induced by spin dependent recombination.
Culan, C., Elliman, R. G., Itoh, K. M., Mortemousque, P. A., Sekiguchi, T., Vlasenko, L. S., Vlasenko, M. P.   +6 more
core   +1 more source

Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction

Advanced Functional Materials, EarlyView.
X‐ray photoelectron spectroscopy study under light excitation is presented to track the defect dynamic (Ce4+ to Ce3+) in CeO2. Surface enhanced Raman spectroscopy confirmed the key role of Ce3+ states in controlling charge and energy transfer across the CeO2‐dye molecule interface.
Rambabu Yalavarthi, Shashi B. Mishra, Olivier Henrotte, Emiliano Cortes   +3 more
wiley   +1 more source

Plasmonics of coupled graphene micro-structures

New Journal of Physics, 2012
The optical response of graphene micro-structures, such as micro-ribbons and discs, is dominated by the localized plasmon resonance in the far infrared spectral range.
Hugen Yan, Fengnian Xia, Zhiqiang Li, Phaedon Avouris   +3 more
doaj   +1 more source

Electronic spin precession in semiconductor quantum dots with spin-orbit coupling

, 2002
The electronic spin precession in semiconductor dots is strongly affected by the spin-orbit coupling. We present a theory of the electronic spin resonance at low magnetic fields that predicts a strong dependence on the dot occupation, the magnetic field ...
A. G. Aronov, A. Puente, A. V. Khaetskii, Antonio Puente, C. Durkan, C. G. Darwin, D. Stein, E. I. Rashba, Enrico Lipparini, G. Salis, I. D. Vagner, I. L. Aleiner, J. A. Gupta, L. P. Kowenhoven, Llorenç Serra, M. Governale, M. Valín-Rodríguez, M. Valín-Rodríguez, Manuel Valín-Rodríguez, O. Voskoboynikov, S. A. Wolf, V. Fock, W. Knap   +22 more
core   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source

A digital twin for parallel liquid-state nuclear magnetic resonance spectroscopy

Communications Engineering
One approach to increasing nuclear magnetic resonance measurement sample throughput is to implement multiple, independent detection sites. However, the presence of radio frequency interference poses a challenge in multi-detector systems, particularly in ...
Mengjia He, Dilara Faderl, Neil MacKinnon, Yen-Tse Cheng, Dominique Buyens, Mazin Jouda, Burkhard Luy, Jan G. Korvink   +7 more
doaj   +1 more source