Results 101 to 110 of about 106,319 (304)

A Hybrid Algorithm for PMLSM Force Ripple Suppression Based on Mechanism Model and Data Model

Energies
The force ripple of a permanent magnet synchronous linear motor (PMSLM) caused by multi-source disturbances in practical applications seriously restricts its high-precision motion control performance. The traditional single-mechanism model has difficulty
Yunlong Yi, Sheng Ma, Bo Zhang, Wei Feng
doaj   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Trade-off between torque ripple and vibration in an IPMSM by examining the temporal and spatial harmonics of flux density

AIP Advances
Despite continuous effort to minimize torque ripple, the reduction of vibration has not been yet achieved due to the lack of link between these two performances.
Sangjin Lee, Gyeonghwan Yun, Grace Firsta Lukman, Cheewoo Lee   +3 more
doaj   +1 more source

A HTS-Excitation Modular Flux-Switching Linear Machine With Static Seals

IEEE Access, 2019
This paper proposes and analyzes a novel high-temperature superconducting (HTS) modular flux-switching linear machine for long-stator applications, which adopts the stator with a low-cost salient-pole iron core and accommodates both the armature windings
Wenzhong Ma, Xiaoyang Wang, Yubin Wang, Xianglin Li   +3 more
doaj   +1 more source

Theory of Cylindrical Tubules and Helical Ribbons of Chiral Lipid Membranes

, 1995
We present a general theory for the equilibrium structure of cylindrical tubules and helical ribbons of chiral lipid membranes. This theory is based on a continuum elastic free energy that permits variations in the direction of molecular tilt and in the ...
A. E. Jacobs, A. S. Rudolph, A. Singh, A. Tardieu, B. M. Peek, B. N. Thomas, C.-M. Chen, C.-M. Chen, D. R. Nelson, D. S. Chung, E. Sackmann, F. C. MacKintosh, F. C. MacKintosh, G. A. Hinshaw, G. A. Hinshaw, H. S. Seung, J. A. N. Zasadzinski, J. H. Georger, J. M. Schnur, J. M. Schnur, J. M. Schnur, J. S. Chappell, J. S. Chappell, J. V. Selinger, J. V. Selinger, M. A. Markowitz, M. Markowitz, N. Nakashima, P. Nelson, P. Yager, P. Yager, P. Yager, P.-G. de Gennes, R. Shashidhar, R. Treanor, S. A. Langer, S. L. Brandow, S. L. Burkett, T. C. Lubensky, T. C. Lubensky, T. Tachibana, W. Helfrich, W. Helfrich, X. Qiu   +43 more
core   +1 more source

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

Unified Fault-tolerant Control Strategy with Torque Ripple Compensation for Five-phase Permanent Magnet Synchronous Motor Based on Normal Decoupling

Energies, 2019
In this paper, the decoupling matrix in a five-phase permanent magnet synchronous motor (FPMSM) is rebuilt and changed, according to different open-phase conditions, which complicate the switch and control algorithm.
Guodong Sun, Guijie Yang, Yanyi Wang, Jianyong Su   +3 more
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

New Stator Tooth for Reducing Torque Ripple in Outer Rotor Permanent Magnet Machine

Advances in Electrical and Computer Engineering, 2016
Torque ripple has been a major problem for the permanent magnet (PM) machine. It is discussed focusing on the magnetic circuit of the PM machine. Since it is known the relationship between the torque ripple and the magnetic energy that is stored in the
OZOGLU, Y.
doaj   +1 more source

Demagnetization of cubic Gd-Ba-Cu-O bulk superconductor by cross-fields: measurements and 3D modelling

, 2018
Superconducting bulks, acting as high-field permanent magnets, are promising for many applications. An important effect in bulk permanent magnets is crossed-field demagnetization, which can reduce the magnetic field in superconductors due to relatively ...
Ainslie, M., Dennis, A., Kapolka, M., Pardo, E., Srpcic, J., Zhou, D.   +5 more
core   +1 more source