Results 151 to 160 of about 21,283 (339)

A Study on Various Causes of Low Frequency Components in Common Mode Voltage of a Space Vector Pulse Width Modulated Three– Phase Quasi–Z–Source H–Bridge Inverter Fed from a Three–Phase Diode Bridge Rectifier

Power Electronics and Drives
The presence of low frequency components in the common mode voltage can cause harmful electromagnetic interference. A critical study on various causes of low frequency components in the common mode voltage of a space vector pulse width modulated Quasi–Z–
Nanda Debalina, Syam Prasid, Mukherjee Kaushik   +2 more
doaj   +1 more source

Ferroelectric‐Polarization‐Driven Structural Engineering of Bi3Nb17O47 Anodes for High‐Performance Lithium‐Ion Batteries

Advanced Science, EarlyView.
A transformative ferroelectric‐polarization strategy is employed to overcome the intrinsic limitations of tungsten bronze (TTB)‐type anode materials in metal‐ion batteries, using Bi3Nb17O47 as a model system. By exploiting the non‐centrosymmetric crystal structure and field‐induced ionic displacements, controlled structural engineering with ...
Xiaoming Lou, Songjie Li, Chunfu Lin, Yanchao Li, Mingze Sun, Zhen Liu, Weiye Nie, Xiaolong Tang, Baoming Wang, Wenwu Cao, Renchao Che   +10 more
wiley   +1 more source

Cascaded Multilevel Inverter Based on Quasi-Z-Source Converter: Analysis, Design and Study of Optimal Structures

Iranian Journal of Electrical and Electronic Engineering, 2019
In this paper, a new topology for cascaded multilevel inverter based on quasi-Z-source converter is proposed. In the proposed topology the magnitude of output DC voltage is not limited to the sum of magnitude of DC voltage sources.
E. Babaei, M. Shadnam Zarbil, E. Shokati Asl   +2 more
doaj  

Higher‐Level Structural Classification of Pseudomonas Cyclic Lipopeptides through Their Bioactive Conformation

Advanced Science, EarlyView.
Solution structures of a series of cyclic lipodepsipeptides from Pseudomonas reveal that these specialized metabolites adopt left‐handed alpha helical conformations of only two types, being either ‘stapled’ or ‘catch‐pole’ helix. The particular modular distribution of the biosynthetic gene clusters is found to determine the extent of their conserved ...
Benjámin Kovács, Durga Prasad, Vic De Roo, Matthias Vanheede, Penthip Muangkaew, Annemieke Madder, Monica Höfte, René De Mot, Niels Geudens, José C. Martins   +9 more
wiley   +1 more source

High-power converters for space applications [PDF]

Phase 1 was a concept definition effort to extend space-type dc/dc converter technology to the megawatt level with a weight of less than 0.1 kg/kW (220 lb./MW). Two system designs were evaluated in Phase 1.
Cooper, Randy, Park, J. N.
core   +1 more source

Monolithic 3D Printing of Origami‐Inspired Soft Robotics from Sustainable Bio‐Based Resin

Advanced Science, EarlyView.
This work develops a photocurable, bio‐based resin from soybean oil for the monolithic fabrication of sustainable soft robots via Digital Light Processing. An origami‐inspired, vacuum‐actuated soft gripper is designed and fabricated, enabling reliable operation despite the material's lower elongation.
Ramin Montazeri, Hugo de Souza Oliveira, Xin Li, Qingchuan Song, Bastian E. Rapp, Dorothea Helmer, Edoardo Milana   +6 more
wiley   +1 more source

Cation–Anion Synergy Enables Uniform and Stable SAMs for High‐Efficiency Perovskite/TOPCon Tandem Solar Cells

Advanced Science, EarlyView.
A cation‐anion synergistic strategy is developed to enhance self‐assembled monolayer (SAM) adsorption using guanidinium thiocyanate (GuaSCN). Guanidinium (Gua⁺) suppresses micelle aggregation, while thiocyanate (SCN−) promotes phosphonic acid deprotonation and strengthens ionic bonding to the substrate.
Haofan Ma, Xin Li, Huan Li, Jianmin Guan, Luyao Zheng, Jun Wu, Ziyu He, Yunyun Yu, Jungan Wang, Jie Yang, Xinyu Zhang, Meili Zhang, Yuheng Zeng, Menglei Xu, Zhiqin Ying, Xi Yang, Jichun Ye   +16 more
wiley   +1 more source

Optimization study of high power static inverters and converters Final report [PDF]

Optimization study and basic performance characteristics for conceptual designs for high power static ...
Klimo, R. G., Krejny, E. L., Larson, A. B., Murray, J. E., Resch, R. J.   +4 more
core   +1 more source

Halide‐Exchange Arrest Enables Reabsorption‐Free CsPbCl3/CsPbI3 Perovskite Core/Shell Nanocrystals

Advanced Science, EarlyView.
Achieving large Stokes shifts in perovskite nanocrystals is challenging due to halide mobility that disrupts stable core–shell structures. Using CdCl2 passivation, this work stabilizes CsPbCl3/CsPbI3 heterostructures, yielding a ≈1.2 eV Stokes shift, high quantum yield, and fast exciton transfer, enabling reabsorption‐free emitters for advanced ...
Hiba H. Karakkal, Saptarshi Chakraborty, Matteo L. Zaffalon, Jordi Llusar, Shehla Gul, Andrea Fratelli, Leonardo Poletti, Laura Lazzarini, Daniela Erminia Manno, Francesco Meinardi, Francesco Carulli, Francesca Rossi, Ivan Infante, Sergio Brovelli   +13 more
wiley   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

Advanced Science, EarlyView.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K, Kumar Shwetabh, Reyas Ali, Ramji Velayutham, Koustav Das, Abhishek Mondal, Prashant Kumar, Surendra B. Anantharaman   +7 more
wiley   +1 more source