Results 201 to 210 of about 319,280 (338)

Systematization of a Multilevel-Topology-Based Linear Amplifier Family for Noiseless DC-AC Power Conversion

Systematization of a Multilevel-Topology-Based Linear Amplifier Family for Noiseless DC-AC Power Conversion
Electrical power converters use semiconductor switching devices for a larger loss reduction compared with non-switching power linear amplifiers, such as class-B amplifiers. However, it is well known that the switching operation produces harmonics and electromagnetic interference noise; consequently, passive components are usually required for the ...
openaire  

A Dual‐Piezoelectric Metal–Organic Cage/COF Z‐Scheme Heterojunction for Solar‐Mechanical Water Splitting

Advanced Science, EarlyView.
A dual‐piezoelectric Z‐scheme heterojunction is constructed by integrating a piezoelectric metal–organic cage (MOC‐FA3) with a β‐ketoenamine‐linked covalent organic framework (S‐COF). This design enables efficient solar‐mechanical energy conversion, achieving remarkable piezo‐photocatalytic pure water splitting for simultaneous H2 and H2O2 production ...
Xin‐Ao Li, Yixuan Wang, Zi‐Zhan Liang, Xin‐Bang Peng, Li‐Min Xiao, Li Gong, Xinyi Yang, Bo Zou, Yecheng Zhou, Jun‐Min Liu   +9 more
wiley   +1 more source

Optimizing switching sequences in AC-AC converters for enhanced safety and performance in conveyor systems. [PDF]

Sci Rep
Dhandapani V, Balasubramanian G.
europepmc   +1 more source

Chemical Doping Engineering of Polarization and Topological Textures in van der Waals Ferroelectric CuInP2S6

Advanced Science, EarlyView.
Our work reports that Li⁺ doping in CuInP2S₆ induces coexistence of high‐ and low‐polarization states, which fosters a rich spectrum of topological polar textures, such as bubbles and labyrinth domains. An unconventional flexoelectric effect is also discovered, where strain gradients can mechanically manipulate these polarization states and their ...
Lei Gao, Wenhao Li, Fei Sun, Ziyi Zhou, Zhihao Shen, Jianwei Liang, He Jiang, Weiming Xiong, Weijin Chen, Xiaoyue Zhang, Yi Zhang, Xinzhi Liu, Yue Zheng   +12 more
wiley   +1 more source

Polymeric microwave rectifiers enabled by monolayer-thick ionized donors. [PDF]

Sci Adv
Osakabe N, Her J, Kaneta T, Tajima A, Longhi E, Tang K, Fujimori K, Barlow S, Marder SR, Watanabe S, Takeya J, Yamashita Y.   +11 more
europepmc   +1 more source

Molecular Sieve Promoted Growth of Ferroelectric Trilayer 3R‐MoS2 for Polarization‐Dependent Reconfigurable Optoelectronic Synapses

Advanced Science, EarlyView.
The noncentrosymmetric trilayer rhombohedral‐stacked MoS2 nanoflakes with enhanced sliding ferroelectric properties are synthesized via a molecular sieve‐assisted chemical vapor deposition process. The switchable polarization states, combined with the exceptional light/gate voltage modulated electrical properties of these nanoflakes, enable broadband ...
Qichao Xue, Jincheng Zhang, Yuying Wang, Yu Wang, Kuiwei Li, Yuxuan Chen, Fang Zhong, Qing Li, Ning Zhou, Chenying Yang, Yuchuan Shao, Tao Liang   +11 more
wiley   +1 more source

Adaptive control for microgrid frequency stability integrating battery energy storage and photovoltaic. [PDF]

Sci Rep
Salama HS, Ali A, Mahmoud K.
europepmc   +1 more source

Tunable Plug‐and‐Play Meta‐Nanogenerator Materials for Multi‐Range Force Measurements

Advanced Science, EarlyView.
The multifunctional and tunable meta‐nanogenerator material system combines a mechanical metamaterial and a triboelectric nanogenerator enabling self‐powered, real‐time force sensing across application‐specific ranges. Geometrical tuning adjusts stiffness and the force sensing range, while modular integration streamlines assembly.
Roshira Premadasa, Pouya Almasi, Samriddhi Ghimire, Wenkui Dong, Chenjie Zhang, Pengcheng Jiao, Qianyun Zhang   +6 more
wiley   +1 more source

An innovative fuzzy model control strategy for Trans-Z-Source DC-DC boost converters in satellite power systems. [PDF]

Sci Rep
Lotfy MW, Hussein AI, Abo-Zahhad MM, Mabrook MM.   +3 more
europepmc   +1 more source

Improving the Thermoelectric Properties of Conjugated Polymer Thin Films by Dip Coating – but not through Alignment

Advanced Electronic Materials, EarlyView.
The study demonstrates that dip coating at lower speeds significantly enhances the thermoelectric performance of P3HT by improving electrical conductivity. Contrary to expectations, this improvement is seemingly not due to polymer alignment but rather to better structural order achieved during slower solvent evaporation at lower dip coating speeds ...
Morteza Shokrani, Andrey Alekseevich Butkevich, Martijn Kemerink   +2 more
wiley   +1 more source