Results 91 to 100 of about 29,041 (298)

Magnetohydrodynamic-kinetic hybrid simulation of Alfvén instabilities in ICRH experiments on EAST

Nuclear Fusion
Nonlinear simulations of Alfvénic instabilities in EAST Ion Cyclotron Resonance Heating experiments are carried out using the magnetohydrodynamic-kinetic hybrid code MEGA.
Pengjuan Su, Jialei Wang, Youjun Hu, Wei Zhang, Wei Shen, Juan Huang, Yueheng Huang, Jiangyue Han, Chenyu Pan, Nan Chu, Tonghui Shi, Zhiyong Qiu   +11 more
doaj   +1 more source

Interpolation-Filtering Method for Image Improvement in Digital Holography

Applied Sciences
Digital holography is actively used for the characterization of objects and 3D-scenes, tracking changes in medium parameters, 3D shape reconstruction, detection of micro-object positions, etc.
Alexander V. Kozlov, Pavel A. Cheremkhin, Andrey S. Svistunov, Vladislav G. Rodin, Rostislav S. Starikov, Nikolay N. Evtikhiev   +5 more
doaj   +1 more source

Effect of beam prebunching on saturation characteristics of Raman free electron laser with helical wiggler and axial magnetic field

Results in Physics, 2019
In this paper, amplification and saturation properties of one dimensional free electron laser (FEL) operating in Raman regime with helical wiggler and axial magnetic field are studied. In order to investigate and enhance the saturation characteristics of
E. Noori, N. Aral, M.H. Rouhani, M. Sharifzadeh   +3 more
doaj   +1 more source

Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring

Advanced Functional Materials, EarlyView.
This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha, Welman C. Elias, Hunter P. Jacobs, Kimberly N. Heck, Saghar Rezaie, Sadegh Yazdi, Kiheon Hong, Justin J. Dodson, Laiyuan Chen, Sean G. Mueller, Steven R. Alexander, Michael S. Wong   +11 more
wiley   +1 more source

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

Advanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang, Dong Hyun Lee, Conan Weiland, Won‐Il Lee, Kim Kisslinger, Mingzhao Liu, Aswin kumar Anbalagan, Xiao Tong, Soumyajit Mandal, Nikhil Tiwale, Houk Jang, Chang‐Yong Nam   +11 more
wiley   +1 more source

Ambient‐Stable Transparent P‐Type CuI Transistors Via Room‐Temperature Pulsed Laser Deposition

Advanced Functional Materials, EarlyView.
An in situ PLD fabricated AlOx${\rm AlO}_x$/CuI/AlOx${\rm AlO}_x$ sandwich structure enables stable CuI TFTs with a field‐effect mobility of 2.3 ±$\pm$ 0.7 cm2${\rm cm}^{2}$ V−1${\rm V}^{-1}$ s−1${\rm s}^{-1}$ and excellent ambient stability. Complementary inverters based on CuI:Rb and ZnO:Al exhibit rail‐to‐rail voltage transfer characteristics and an
Yang Chen, Susanne Selle, Michael S. Bar, Michael Lorenz, Holger von Wenckstern, Marius Grundmann   +5 more
wiley   +1 more source

Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak

Nuclear Fusion
In the 2023 experiment campaign, we measured ion cyclotron emission (ICE) signals on the Experimental Advanced Superconducting Tokamak (EAST), edge ICE excited by tritium ions.
Huapeng Zhang, Lunan Liu, Wei Zhang, Xuan Sun, Xinjun Zhang, Zhengshuyan Wang, Zelin Xu, Jiadong Zhang, Weijian Qin, Liuxin Li, Yuhao Jiang, Sichun Qiu, Chengming Qin, Guanghui Zhu, Yongxin Zhu, Kai Zhang, Tao Jin, Zhiping Li   +17 more
doaj   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 more
wiley   +1 more source

Application of the line shape measurements in the linear plasma device PSI-2 as a benchmark of hydrogen plasma chemistry

Nuclear Materials and Energy
High resolution spectra of the lines H α , H β , H γ emitted from the pure hydrogen plasma of the linear device PSI-2 have been measured and analysed.
V. Kotov, M. Sackers, O. Marchuk, M. Reinhart, G. Sergienko, A. Kreter, B. Unterberg, S. Brezinsek   +7 more
doaj   +1 more source

Simultaneous Enhancement of Performance and Stability in Dual‐Gate a‐IGZO Thin‐Film Transistors via Single‐Step Laser Annealing for Capacitor‐Less DRAM

Advanced Functional Materials, EarlyView.
A single‐step laser annealing strategy is presented for dual‐gate a‐IGZO TFTs. The steep thermal gradient induces graded oxygen doping in the channel and simultaneous WOx removal at the contacts, enabling concurrent interface and contact engineering.
Sihyeon Kwon, Junil Kim, Geuntae Park, Minseok Kim, Woohyun Hwang, Wanki Kim, Daewon Ha, Byeongmoon Lee, Jae Eun Jang, Hyuk‐Jun Kwon   +9 more
wiley   +1 more source