Results 101 to 110 of about 146,883 (325)

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Integrated Control and Modulation for Three-Level NPC Rectifiers

Energies, 2019
This paper uses a novel approach for the control of three-level neutral-point-clamped (NPC) rectifiers in order to tackle the capacitor voltage balance problem.
Antonio Ventosa-Cutillas, Pablo Montero-Robina, Francisco Umbría, Federico Cuesta, Francisco Gordillo   +4 more
doaj   +1 more source

An efficient flamelet progress-variable method for modeling non-premixed flames in weak electric fields

, 2017
Combustion stabilization and enhancement of the flammability limits are mandatory objectives to improve nowadays combustion chambers. At this purpose, the use of an electric field in the flame region provides a solution which is, at the same time, easy ...
De Palma, P., de Tullio, M. D., Di Renzo, M., Pascazio, G.   +3 more
core   +1 more source

Theory of membrane capacitive deionization including the effect of the electrode pore space [PDF]

, 2011
Membrane capacitive deionization (MCDI) is a technology for water desalination based on applying an electrical field between two oppositely placed porous electrodes.
Biesheuvel, P.M., Porada, S., Wal, A., van der, Zhao, R.   +3 more
core   +2 more sources

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source

A Three-level Space Vector PWM Strategy Based on Variable Virtual Middle Vector

Kongzhi Yu Xinxi Jishu, 2018
T-type three-level topology has been widely applied in power converters for its high efficiency and low output harmonics, and the performance of this converter is determined by the effect of its capacitor neutral point voltage control.
LIN Zhenjun, LIU Yongjiang, LI Hua, LIU Haitao, LI Congda, XUE Xin   +5 more
doaj  

An Improved Multiobjective Model-Predictive Control Method for Active Neutral-Point-Clamped Five-Level Converter

IEEE Open Journal of the Industrial Electronics Society
The active neutral-point-clamped five-level converter has drawn much attention in industrial applications. However, common-mode voltage (CMV) suppression, accurate track current, fixed switching frequencies, neutral-point (NP) voltage balance, and flying
Qiguang Ren, Chang Liu, Xiangyang Xing, Rui Zhang, Chenghui Zhang   +4 more
doaj   +1 more source

Casimir forces and non-Newtonian gravitation [PDF]

, 2006
The search for non-relativistic deviations from Newtonian gravitation can lead to new phenomena signalling the unification of gravity with the other fundamental interactions.
, Abrikosova I I, Arkani-Hamed N, Bantel M K, Barton G, Bentsen V S, Bevington P R, Bordag M, Bressi G, Bressi G, Caldwell R R, Carroll S M, Casimir H B G, Cohen-Tannoudij C, Collins H, Dalibard J, Derjaguin B V, Derjaguin B V, Fischbach E, Fischbach E, Fujii Y, Genet C, Gies H, Gies H, Gies H Klingmüller K, Gundlach J H, Halberger L, Høye J S, Iacopini E, Iannuzzi D, Intravaia F, Israelachvili J, Kitchener J A, Klimchitskaya G L Mostepanenko V M, Lambrecht A, Lamoreaux S K, Lamoreaux S K, Lamoreaux S K, Levi B G, Lifshitz E M, Long J C, Milonni P W, Milonni P W, Milton K A, Milton K A, Mostepanenko V M, Nesvizhevsky V V, Onofrio R, Parsegian V A, Price J C, Reynaud S, Roberto Onofrio, Sahni V, Schroder D K, Schwarzschild B, Schwinger J, Sparnaay M J, Svetovoy V B, van Blokland P H G M, Weinberg S, Witten E, Zeldovich Y B   +61 more
core   +3 more sources

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Fixed-Frequency 3V-MPCC Strategy for Single-Phase NPC Inverters With Multi-Objective Optimization

IEEE Access
Traditional finite control set model predictive control for single-phase three-level neutral-point-clamped inverters suffers from three main issues: non-constant switching frequency, high harmonic distortion, and neutral-point voltage fluctuations.
Tang Yong, Tang Huiying, Wang Bo
doaj   +1 more source