Results 171 to 180 of about 28,069,834 (348)

Robustness Adaptive Control For a Permanent Magnet Synchronous Motor

, 2011
This paper presents a vector control permanent magnet synchronous motor drive using backstepping control design. Backstopping control is proposed for replacing the existing PI controller to obtain high performance motion control systems for the speed ...
Rebouh, S., Haddoun, A., Abdessemed, R., Kaddouri, A.   +3 more
core  

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Regulating Phase Evolution and Crystallization Dynamics Enables Low Open‐Circuit Voltage Deficit in Wide‐Bandgap Cu2ZnSnS4 Solar Cells

Advanced Materials, EarlyView.
Bilayer composition‐modulated sulfurization (BCMS) regulates Cu redistribution in solution‐processed Cu2ZnSnS4, suppressing Cu2SnS3 and favoring the direct transformation pathway, while transforming the crystallization from surface‐dominated growth to a more synchronized process.
Hang Geng, Jingwen Cao, Jialiang Huang, Ao Wang, Zuoyun Wang, Xiaojie Yuan, Yidong Liu, Chenghan Zhao, Jialin Cong, Kaiwen Sun, Xiaojing Hao   +10 more
wiley   +1 more source

Light‐Programmed Localized Supersaturation Enables Ambient Aqueous Synthesis of Highly Crystalline Metal–Organic Frameworks

Advanced Materials, EarlyView.
In the proposed model, a photoinduced nanoreactor uses Cu2O self‐photooxidation to generate localized supersaturation. A metastable supersaturation state first forms a shell, creating a spatially confined environment that restricts reactant exchange; continued Cu release then drives the local environment toward a labile regime that favors predominantly
Yongdeok Ahn, Seunghyeon Jeong, Sun Ho Park, Juhyeong Cho, Nak Cheon Jeong, Daeha Seo   +5 more
wiley   +1 more source

A Unified Model for Voltage-Source and Current-Source Virtual Synchronous Generators. [PDF]

Entropy (Basel)
Wang D, Luo X, Geng H, Yu X, Yang Y, Tang Y.   +5 more
europepmc   +1 more source

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

Advanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare, Craig S. Knox, Ahmet Yagmur, Sara Ghayeb Zamharir, Lianhe Li, Satoshi Sasaki, A. Giles Davies, Edmund H. Linfield, Joshua R. Freeman, Miriam S. Vitiello   +9 more
wiley   +1 more source

Survival outcomes with Lutetium-177-PSMA-617 in metastatic castration-resistant prostate cancer patient according to baseline tumor characteristics. [PDF]

World J Urol
Wenzel M, Le QC, Siech C, Hoeh B, Klimek K, Happel C, Saad F, Preisser F, Tilki D, Graefen M, Steuber T, Maurer T, Kriegmair MC, Karakiewicz PI, Chun FKH, Groener D, Mandel P.   +16 more
europepmc   +1 more source

Capacitor Activated Self-Excitation System of Synchronous Generator

In this paper the self-excitation system of synchronous generator based on capacitor discharge through excitation winding is described. The system comprises three-phase synchronous generator with connected in star scheme stator winding with neutral wire ...
Zaļeskis, Genadijs, Raņķis, Ivars
core  

A Thermoreversible Gelation Pathway to Plant Cuticle‐Inspired Biopolymer Aerogel Monoliths Based on Network‐Spherulitic Crystal Assemblies

Advanced Materials, EarlyView.
To address functionality limitations in plant‐based and industrially compostable polymer aerogels, this work introduces bio‐inspired aerogels with broadened functionality. Inspired by functional plant tissues, lightweight biopolymer aerogels based on exclusively stereocomplex crystals are fabricated, featuring hierarchically macro‐/meso‐porous ...
Anthony V. Tuccitto, Zeineb Ben Rejeb, Rafaela Aguiar, Nello D. Sansone, Sumaiya Farzana, Isaac Ali, Jun Uk Lee, Daniel J. Davidson, Ailsa K. Edward, Chul B. Park, Patrick C. Lee   +10 more
wiley   +1 more source

Inverter control for wind-solar-storage based on distributed generation and virtual synchronous machines. [PDF]

PLoS One
Cao H.
europepmc   +1 more source