Results 151 to 160 of about 192,634 (311)

Research on an innovative magnetic helix hybrid excitation rotary generator with remarkable power density and efficiency for wave energy conversion

Scientific Reports
Aiming at the limitations of direct drive wave energy conversion (DD-WEC), especially the poor power density, low energy conversion efficiency, and a large volume of linear generators (LGs), a novel magnetic helix hybrid excitation rotary generator (MH ...
Yulei Liu, Haitao Yu, Qiongfang Zhang
doaj   +1 more source

Modeling the path to >30% power conversion efficiency in perovskite solar cells with plasmonic nanoparticles. [PDF]

RSC Adv, 2023
Mashrafi M, Anik MHK, Israt MF, Habib A, Islam S.   +4 more
europepmc   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Power scaling of novel fibre sources [PDF]

, 2012
This thesis explores novel fibre-based coherent light source architectures and strategies for scaling output power. The research focuses on fibre-based amplified spontaneous emission (ASE) sources with broadband output in the ~1 µm spectral region and on
Cieslak, Rafal
core  

Visualization and standardized quantification of surface charge density for triboelectric materials

Nature Communications
Triboelectric nanogenerator (TENG) operates on the principle of utilizing contact electrification and electrostatic induction. However, visualization and standardized quantification of surface charges for triboelectric materials remain challenging. Here,
Yi Li, Yi Luo, Song Xiao, Cheng Zhang, Cheng Pan, Fuping Zeng, Zhaolun Cui, Bangdou Huang, Ju Tang, Tao Shao, Xiaoxing Zhang, Jiaqing Xiong, Zhong Lin Wang   +12 more
doaj   +1 more source

High-power high-efficiency room-temperature terahertz sources in lithium niobate crystals

High Power Laser Science and Engineering
High-power terahertz (THz) pulses are important for material analysis and ultrafast spectroscopy, but existing sources barely achieve high field strength and average power simultaneously.
Xieqiu Yu, Deyin Kong, Jiahua Cai, Jianghao Li, Aojie Xu, Deepak Suthar, Tong Chen, Baolong Zhang, Xiaojun Wu   +8 more
doaj   +1 more source

Doping with Niobium Nanoparticles as an Approach to Increase the Power Conversion Efficiency of P3HT:PCBM Polymer Solar Cells. [PDF]

Materials (Basel), 2023
Mkawi EM, Al-Hadeethi Y, Arkook B, Bekyarova E.   +3 more
europepmc   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Study of photovoltaic systems with differences connecting configuration topologies for applications in renewable energy systems

International Journal of Energetica, 2019
This paper focuses in the optimization of the efficiency of photovoltaic power conversion systems; we present a new alternative for improving both the optimization of the efficiency of photovoltaic power conversion chain.
Mouhoub Birane, abdelghani Chahmi
doaj  

High Power-Conversion Efficiency of Lead-Free Perovskite Solar Cells: A Theoretical Investigation. [PDF]

Micromachines (Basel), 2022
Umar A, Sadanand, Singh PK, Dwivedi DK, Algadi H, Ibrahim AA, Alhammai MAM, Baskoutas S.   +7 more
europepmc   +1 more source