Results 81 to 90 of about 6,578,394 (152)

Advances in Josephson Junction Materials and Processes Toward Practical Quantum Computing

Advanced Science, EarlyView.
Emerging materials for quantum computing, including crystalline materials, two‐dimensional van der Waals materials, two‐dimensional electron gas systems, ferromagnets, and unconventional (e.g., d‐wave) superconductors, offer opportunities to engineer next‐generation Josephson junctions.
Hyunseong Kim, Gyunghyun Jang, Seungwon Jin, Jaewon An, Dongbin Shin, Hyeon‐Jin Shin, Jie Luo, Akel Hashim, Irfan Siddiqi, Yosep Kim, Long B. Nguyen, Hoon Hahn Yoon   +11 more
wiley   +1 more source

A new three‐level simplified sparce NPC topology for UHS PMSM motor applications

IET Electric Power Applications
In ultra‐high speed (UHS) motor applications, full SIC two‐level (2L) inverters with high switching frequencies are generally used due to their lower cost.
Aleksandr Sheianov, Xi Xiao, Xudong Sun
doaj   +1 more source

A new impedance measurement method and its application to stability analysis of the inverter‐grid system

IET Renewable Power Generation, 2021
Grid‐connected inverter have been extensively used in the renewable energy grid‐connect systems, such as solar and wind. Interaction between the grid and the inverter may generate harmonic resonances that lead to reduced power quality and even ...
Junliang Liu, Xiong Du, Ying Shi, Heng‐Ming Tai   +3 more
doaj   +1 more source

Nonmonotonic Enhancement of Electro‐Optic Properties of Wurtzite AlN Thin Films by Sc Doping

Advanced Electronic Materials, EarlyView.
EO coefficient, rc, for Sc‐AlN thin films in comparison with that for Mg ZnO thin films (left). Calculated electric field intensity of the fundamental mode supported by the active area that includes Sc‐AlN (right). ABSTRACT Wurtzite ferroelectrics, such as Sc‐doped AlN, have recently attracted considerable attention for their potential in realizing ...
K. Abe, X. Yuan, K. Okamoto, X. Liu, C. Wang, T. Wu, H. Funakubo, S. Kondo, T. Nagasaki, P. Ma, A. Emboras, T. Yamada   +11 more
wiley   +1 more source

Simple new PWM patterns for thyristor three-phase AC/DC convertors

, 1986
Thyristor forced commutated AC/DC convertors are useful for improving the power factor and waveform of AC-side line current. These are controlled through pulse-width modulation schemes for best performance.
Mahesh, MS, Biswas, SK, lyengar, BSR
core  

Al1−xHfxN$\text{Al$_{1-x}$Hf$_{x}$N}$ Thin Films with Enhanced Piezoelectric Responses for GHz Surface Acoustic Wave Devices

Advanced Electronic Materials, EarlyView.
Reactively sputtered wurtzite Al1‐xHfxN thin films, exhibiting strong c‐axis texture and enhanced piezoelectric response, are demonstrated as a cost‐effective alternative to Al1‐xScxN. X‐ray absorption spectroscopy reveals that cross‐gap N 2p–Hf 5d hybridization increases the Born effective charge and enables a multifold increase in piezoelectric ...
Laura I. Wagner, Verena Streibel, Esperanza Luna, Katarina S. Flashar, Valentin Walbrunn, Walid Anders, Nicole Volkmer, Doreen Steffen, Katrin Morgenroth, Frans Munnik, Tsedenia A. Zewdie, Saswati Santra, Jutta Schwarzkopf, Ian D. Sharp, Mingyun Yuan   +14 more
wiley   +1 more source

Using MIS Thermally Stimulated Currents for Degradation Dependent Energetic Landscape Evaluation in Triple Cation Mixed Halide Perovskites

Advanced Energy Materials, EarlyView.
A state‐of‐the‐art triple cation mixed halide perovskite is characterized using thermally stimulated currents in a MIS device architecture. This enables the separate detection of densities of electron and hole states and their activation energies on the same device, unveiling defect state evolution under the degrading influence of ambient conditions ...
L. Leander Schaberg, Young Un Jin, Witchaya Arpavate, Yueming Wang, Roland Schmechel, Thomas Kirchartz, Doru C. Lupascu, Niels Benson   +7 more
wiley   +1 more source

DC‐link voltage stability enhancement in intermittent microgrids using coordinated reserve energy management strategy

IET Renewable Power Generation
In recent years, due to its cost effectiveness and environmental advantages, demand for renewable energy resources has grown and their contributions to grid power has therefore increased while requiring effective frequency and voltage regulation. DC link
Saqif Imtiaz, Lijun Yang, Hafiz Mudassir Munir, Zulfiqar Ali Memon, Heybet Kilic, Muhammad Naveed Naz   +5 more
doaj   +1 more source

The Possibility of Enhanced Power Transfer in a Multi-Terminal Power System through Simultaneous AC–DC Power Transmission

, 2021
The feasibility of power transfer enhancement, through simultaneous AC–DC power transmission in a two-terminal transmission network, has been proposed earlier by the authors, and the concept is well established.
Shaista Parveen, Hafizur Rahman, Basem Alamri, Akbar Ahmad, Salman Hameed, Khaliqur Rahman, Mohd Tariq   +6 more
core   +1 more source

Extending Battery Usage Time of a Heavy‐Duty Mecanum‐Wheeled Autonomous Electric Vehicle Used in Iron–Steel Industry by Considering Wheel Slippage

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
It is a fact that slippage causes tracking errors in both longitudinal and lateral directions which results to have less travel distance in tracking a reference trajectory. Less travel distance means having energy loss of the battery and carrying loads less than planned.
Gokhan Bayar, Goktug Hambarci, Ali Sezai Demirel   +2 more
wiley   +1 more source