Results 111 to 120 of about 1,896,325 (283)

Design and Development of a Hybrid Excited Claw Pole Synchronous Machine

, 2011
The paper presents a new contactless hybrid excited claw pole synchronous machine. The excitation field is produced by both NdFeB permanent magnets mounted on the rotor, and two fixed cods embedded within machine shields, and fed from a controlled DC ...
Cistelecan, Mihail V., Melcescu, Leonard M., Popescu, Mihail, Craiu, Ovidiu   +3 more
core  

Donor‐Engineered Chiral Indium–Salen Complexes for Tunable Circularly Polarized Luminescence

Advanced Functional Materials, EarlyView.
Chiral indium–salen complexes bearing electronically and structurally diverse donor substituents are presented as modular main‐group luminophores exhibiting tunable blue‐to‐green circularly polarized luminescence. Donor engineering systematically controls frontier‐orbital distribution, intraligand charge transfer, and excited‐state relaxation ...
Haein Kim, Minseo Ji, Khuslen Bazarragchaa, Yubin Choi, Gahyeon Baek, Ji Hye Lee, Heekyung Park, Houng Kang, Hyonseok Hwang, Huiyeong Ju, Jun Hui Park, Youngjo Kim, Min Kim, Youngmin You, Myung Hwan Park   +14 more
wiley   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

Advanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee, Hiroya Nishikawa, Tae‐Woong Moon, Dong‐Ha Kim, Fumito Araoka, Suk‐Won Choi   +5 more
wiley   +1 more source

Unleashed from constrained optimization: quantum computing for quantum chemistry employing generator coordinate inspired method

npj Quantum Information
Hybrid quantum-classical approaches offer potential solutions to quantum chemistry problems, yet they often manifest as constrained optimization problems.
Muqing Zheng, Bo Peng, Ang Li, Xiu Yang, Karol Kowalski   +4 more
doaj   +1 more source

POWER CONDITIONING UNIT FOR SMALL SCALE HYBRID PV-WIND GENERATION SYSTEM [PDF]

, 2011
Small-scale renewable energy systems are becoming increasingly popular due to soaring fuel prices and due to technological advancements which reduce the cost of manufacturing.
AHMED-MAHMOUD, ASHRAF
core  

Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots

Advanced Functional Materials, EarlyView.
Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz, Ramin Yazdaanpanah, Yongfeng Guo, Pouriya Naziri, Sachin Kulkarni, Martina Mercurio, Maria Cristina Larciprete, Ilaria Fratoddi, Paul Simon, Wan‐Lu Li, Koray Aydin, Umut Aydemir   +11 more
wiley   +1 more source

Dynamical Modeling, Simulation and Analysis for Voltage Regulation System of Hybrid Excitation Doubly Salient Generator

, 2011
Hybrid Excitation Doubly Salient Generator (HEDSG) with parallel magnetic circuits is performed in this paper, and the main flux in the machine is determined by the permanent magnet and the field coils.
Wei Li Dai, Jun Tao Fei, Yang Guang Yan
core   +1 more source

Thermoresponsive Liquid Crystalline Polymer Coatings Programmed by Field‐Induced Topological Defects for Tunable Optical and Topographical Responses

Advanced Functional Materials, EarlyView.
Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto, Mufeeduzaman Chavilkkadan, Alexander Fusi, Marko Beslać, Dirk J. Broer, Etienne Brasselet, Danqing Liu   +6 more
wiley   +1 more source

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

Advanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani, Paulius Imbrasas, Jan‐Michael Mewes, Felix Kaden, Stephanie Anna Buchholtz, Karl Leo, Sebastian Schellhammer, Carsten Rothe, Sebastian Reineke   +8 more
wiley   +1 more source

Optimization and analysis of permanent magnet assisted reluctance generator with interior rare - Earth - Less combined magnetic poles for extended range electric vehicles

Frontiers in Mechanical Engineering
To address the issues of large cogging torque and poor sinusoidal waveform of induced electromotive force in traditional pure rare earth permanent magnet generators for extended-range electric vehicles, a novel permanent magnet-assisted reluctance ...
Xianjun Zeng, Xianjun Zeng, Bingquan Tao, Bingquan Tao, Xiuqian Sun, Xiuqian Sun, Jianwei Ma, Jianwei Ma   +7 more
doaj   +1 more source