Results 71 to 80 of about 23,320 (286)

A Bespoke Programmable Interpenetrating Elastomer Network Composite Laryngeal Stent for Expedited Paediatric Laryngotracheal Reconstruction

Advanced Functional Materials, EarlyView.
A programmable interpenetrating double‐network architecture, created via 3D‐TIPS printing and resin infusion, synergistically combines thermoplastic and thermosetting elastomers to balance structural rigidity and surface softness—crucial for paediatric laryngeal stents.
Elizabeth F. Maughan, Lei Wu, Dong Zhang, Linxiao Wu, Graca Ferreira Vaz Pinto Mendes, Wanqiao J. Tu, Heping Ma, Toby J. Proctor, Colin R. Butler, Thomas Kjærgaard, Mark W. Lowdell, Martin A. Birchall, Robert E. Hynds, Richard Hewitt, Wenhui Song   +14 more
wiley   +1 more source

Selective Harmonic Elimination in Multimodule Three-Phase Current-Source Converters

IEEE Transactions on Power Electronics, 2010
Modular current-source converter (MCSC) structures can enhance the current capacity and improve the power quality of converters in medium-voltage pulsewidth-modulated applications. An MCSC uses individual three-phase modules in a shunt connection to share the total power in a symmetrical manner.
Guzman, Johan I., Espinoza, Jose R., Moran, Luis A., Joos, Geza   +3 more
openaire   +3 more sources

Reduced Switching-Frequency Active Harmonic Elimination for Multilevel Converters [PDF]

, 2008
This paper presents a reduced switching-frequency active-harmonic-elimination method (RAHEM) to eliminate any number of specific order harmonics of multilevel converters.
Chiasson, John, Du, Zhong, Ozpineci, Burak, Tolbert, Leon M.   +3 more
core   +2 more sources

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

Cooling atomic motion with quantum interference [PDF]

, 2002
We theoretically investigate the quantum dynamics of the center of mass of trapped atoms, whose internal degrees of freedom are driven in a $\Lambda$-shaped configuration with the lasers tuned at two-photon resonance.
A. Aspect, A. Aspect, A.J. Kerman, A.S. Manka, B. Lounis, C. Cohen-Tannoudji, C. Monroe, C.F. Roos, Ch. Roos, D. Jaksch, D.-J. Han, D.J. Wineland, F. Diedrich, F. Schmidt-Kaler, G. Janik, G. Morigi, G. Morigi, G. Nienhuis, Giovanna Morigi, I. Marzoli, J. Javanainen, J.I. Cirac, J.I. Cirac, L.M. Narducci, M. Lindberg, M. Lindberg, M. Morinaga, R. Dum, S. Stenholm, S.E. Harris, Y. Stalgies   +30 more
core   +3 more sources

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

Multilevel Converters: An Enabling Technology for High-Power Applications [PDF]

, 2009
| Multilevel converters are considered today as the state-of-the-art power-conversion systems for high-power and power-quality demanding applications.
García Franquelo, Leopoldo, Kouro, Samir, León Galván, José Ignacio, Martín Prats, María de los Ángeles, Portillo Guisado, Ramón Carlos, Pérez, Marcelo, Rodríguez, José   +6 more
core  

Statistical Theory of Unimolecular Reactions and Intramolecular Dynamics [PDF]

, 1983
In the present lecture we review experimental and theoretical developments in the field of intramolecular dynamics during the past sixty years.
Marcus, R. A.
core   +1 more source

Harmonizing the Pyrene and Ether Groups in Covalent Triazine Polymers for Highly Effective H2O2 Photosynthesis via One‐Step Two‐Electron Oxygen Reduction

Advanced Functional Materials, EarlyView.
The pyrene and ether groups are incorporated into the covalent triazine polymer (CTP) structure. The synergistic effect of the two functional groups endows CTP with better electron transfer, light absorption, and oxygen activation properties. An impressive apparent quantum yield (13.2% @420 nm) and a remarkable solar‐to‐chemical conversion efficiency ...
Chong Wang, Jinliang Lv, Yichun Lu, Hanfeng Ye, Xuan Zhang, Leonardo Cancellara, Nadezda Tarakina, Jiande Lin, Xin Gao, Oleksandr Savateev, Jiajia Cheng   +10 more
wiley   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source