Results 31 to 40 of about 22,336 (243)

Review on Multilevel Inverters for Renewable Energy: Issues and Challenges [PDF]

Journal of Renewable Energy and Environment
In this paper, we present a comprehensive comparative analysis of multilevel inverter (MLI) architectures, examining their operating principles, design variations, and performance characteristics with a focus on renewable energy integration. Specifically,
Ashok Suryawanshi, Sharad Kumar, Surya Deo Choudhary, Md Tabrez, Sneha Rai, Vikash Kumar, Rashmi Priya   +6 more
doaj   +1 more source

Multilevel inverter with optimal THD through the firefly algorithm [PDF]

, 2017
Reduction of the Total Harmonic Distortion (THD) in multilevel inverters requires resolution of complex nonlinear transcendental equations; in this paper we propose a combination of one of the best existing optimized hardware structures with the recent ...
El Mehdi Belkacem Riadh, Benzid, R., Bouguechal Noureddine, El Mehdi Belkacem, R., Bouguechal, N., Redha Benzid, Noureddine Bouguechal, Riadh El Mehdi Belkacem, Benzid Redha   +8 more
core   +1 more source

Hybrid controller-based solar-fuel cell-integrated UPQC for enrichment of power quality

Paladyn, 2023
A fuzzy-integrated sliding mode-based hybrid controller (FISMHC) attributed to unified power quality conditioner (UPQC) was proposed in this study through implementation with solar integrated to fuel cell through incorporation of UPQC within sequence ...
Sai Sarita Narala Chitti, Suresh Reddy Sanna, Sujatha Peddakotla   +2 more
doaj   +1 more source

Switching Spike Plasticity Shapes ACE2 Engagement Across SARS‐CoV‐2 Variants

Advanced Science, EarlyView.
Conformational plasticity governs SARS‐CoV‐2 spike function and ACE2 recognition. Using high‐speed AFM and single‐molecule force spectroscopy, we analyzed the ancestral spike and nine variants, revealing progressive rigidification from Delta, variable plasticity in Omicron sublineages, and JN.1 compaction.
Sarah Stainer, Rong Zhu, Manuel Reithofer, Gerhard Stadlmayr, Katharina Stadlbauer, Panchika Prangkio, Christoph Rippel, Markus Hahn, Aniko Eva Kasztner, Stefanie Stohl, Petr Bednar, Daniel Ruzek, David Glück, Robert Tampé, Gordana Wozniak‐Knopp, Yoo Jin Oh, Miriam Klausberger, Peter Hinterdorfer   +17 more
wiley   +1 more source

Emergent Magnetism, Heavy Electrons, and Pressure‐Induced Reentrant Superconductivity in the Iron Substituted 4d Transition‐Metal Sulfides

Advanced Science, EarlyView.
This work illustrates that magnetic Fe substitution enables systematic modulation of physical properties of the putative unconventional superconductor Rh17S15. Iron doping uncovers delicate competition between weak ferromagnetism, spin‐glass states, heavy‐fermion signatures, and superconductivity.
Yalei Huang, Lu Xin, Na Zuo, Bin Li, Wei Zhou, Dhanarajagopal Alltrin, Boning Yu, Haiyang Yang, Bin Qian, Wen‐Chin Lin, Raman Sankar, Michael Smidman, Xiangzhuo Xing, Chunqiang Xu, Xiaobing Liu, Jianhui Dai, Dong Qian, Shiyan Li, Xiaofeng Xu   +18 more
wiley   +1 more source

Intermodulation noise related to THD in wide-band amplifiers [PDF]

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1997
It is shown that the power of the intermodulation noise of a wide-band amplifier with a Gaussian input signal, can be estimated by the total harmonic distortion (THD) with a sinusoid input signal of appropriate amplitude. The THD is, as opposed to the intermodulation noise, easy to measure and use as a design parameter.
Sjöland, Henrik, Mattisson, Sven
openaire   +2 more sources

Disorder Driven Anisotropic Nonlinear Hall Effect in the Kagome Metal YbCo6Ge6 at Room Temperature

Advanced Science, EarlyView.
The intrinsic structural disorder and short‐range correlated motifs in the kagome metal YbCo6Ge6 constitute the primary mechanism for a robust and anisotropic nonlinear Hall effect (NLHE). This effect is sustained across a wide temperature range, achieving a nonlinear responsivity of up to ∼4.5 × 10−3 m/V at 70 K, higher than known disordered and ...
Qurat Ul Ain, Weiyao Zhao, Thanh Tung Huynh, Yuefeng Yin, Fang Tang, Yong Fang, Junlin Yan, Jacek Jasieniak, Timothy Petersen, Yang Liu, Nikhil V. Medhekar, Julie Karel   +11 more
wiley   +1 more source

Current and THD results.

, 2017
Current and THD results.
Mohd Hafiz Bin Habibuddin (3743692), Amirreza Naderipour (3743701), Josep M. Guerrero (3743698), Mohammad Reza Miveh (3743695), Abdullah Asuhaimi Mohd Zin (3743704)   +4 more
core   +1 more source

THD Doppler procedure for hemorrhoids: the surgical technique [PDF]

Techniques in Coloproctology, 2013
Abstract Transanal hemorrhoidal dearterialization (THD) is an effective treatment for hemorrhoidal disease. The ligation of hemorrhoidal arteries (called “dearterialization”) can provide a significant reduction of the arterial overflow to the hemorrhoidal piles.
openaire   +3 more sources

Atomically Modulating Competing Exchange Interactions in Centrosymmetric Skyrmion Hosts GdRu2X2 (X = Si and Ge)

Advanced Electronic Materials, EarlyView.
Our work bridges the gap between skyrmion discovery and material design by demonstrating how atomic‐scale control of exchange interactions enables tunable skyrmion phase transitions in centrosymmetric magnetic metals. ABSTRACT Magnetic skyrmions are topologically protected spin states that hold promise for shaping the future of electronics.
Dasuni N. Rathnaweera, Xudong Huai, K. Ramesh Kumar, Michał J. Winiarski, Tomasz Klimczuk, Allana G. Iwanicki, Satya K. Kushwaha, Martin Mourigal, Tyrel M. McQueen, Thao T. Tran   +9 more
wiley   +1 more source