Results 71 to 80 of about 21,797 (258)

A physics and learning-based transmission-less attenuation compensation method for SPECT. [PDF]

Proc SPIE Int Soc Opt Eng, 2021
Yu Z, Rahman MA, Schindler T, Laforest R, Jha AK.   +4 more
europepmc   +1 more source

Chemical State Detection and Charge Transfer in Complex Oxide Heterostructures via In Situ Auger Electron Spectroscopy

Advanced Functional Materials, EarlyView.
In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian, Jayakanth Ravichandran   +1 more
wiley   +1 more source

A novel hybrid LFC scheme for multi-area interconnected power systems considering coupling attenuation

Scientific Reports
In this paper, a hybrid load frequency control (LFC) scheme is proposed for multi-area interconnected power systems to decouple the intricate double control objectives, by dividing all subareas into the responsible areas and the free areas.
Bing Wang, Yinsheng Li, Yuquan Chen
doaj   +1 more source

Analysis of Passive Shielding Performance Stability in Hybrid Magnetic Shielding Devices

Applied Sciences
In hybrid active–passive magnetic shielding systems, active compensation coils are used to suppress residual magnetic fields inside the shield. However, due to the intrinsic hysteresis of high-permeability materials, the compensation fields inevitably ...
Shicheng Yu, Jinji Sun, Haifeng Zhang, Bangcheng Han, Zhouqiang Yang   +4 more
doaj   +1 more source

Total attenuation compensation for backscatter coefficient estimation using full angular spatial compounding. [PDF]

Ultrasonics, 2021
Coila A, Rouyer J, Zenteno O, Luchies A, Oelze ML, Lavarello R.   +5 more
europepmc   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Design of a 12~30 GHz high precision and low additional phase shift digital controlled attenuator

Dianzi Jishu Yingyong
In order to meet the high-precision design requirements of broadband microwave wireless communication systems, a five-bit digital controlled attenuator with low additional phase shift in the 12~30 GHz range was designed using GaAs 0.15 μm PHEMT ...
Zhang Bin, Qin Zhanming, Wu Shutong, Zhang Liyi, Yang Junhao, Jiang Yingdan   +5 more
doaj   +1 more source

Optimized OCT-based depth-resolved model for attenuation compensation using point-spread-function calibration. [PDF]

Proc SPIE Int Soc Opt Eng, 2021
Wang Y, Wei S, Guo S, Kang JU.
europepmc   +1 more source

Tuning Redox Dynamics in Cu‐Based Electrocatalysts: Effect of Secondary Metals

Advanced Functional Materials, EarlyView.
Advanced analysis of operando X‐ray absorption spectroscopy data reveals that secondary metals affect the redox processes in Cu‐based catalysts for electrocatalytic CO2 reduction. This influences the amount of oxides formed under pulsed reaction conditions and the distribution of reaction products.
Martina Rüscher, Andrea Martini, Eduardo Ortega, Lichen Bai, Eric Liberra, Daniel Escalera‐López, Hyo Sang Jeon, Antonia Herzog, Clara Rettenmaier, Dorottya Hursán, David Koshy, Mariana Cecilio de Oliveira Monteiro, Timon Wagner, Leon Jacobse, Felix Haase, Arno Bergmann, Janis Timoshenko, Beatriz Roldan Cuenya   +17 more
wiley   +1 more source

Adaptive active vibration isolation – A control perspective

MATEC Web of Conferences, 2015
In many classes of applications like active vibration control and active noise control, the disturbances can be characterized by their frequencies content and their location in a specific region in the frequency domain.
Landau Ioan Doré, Airimitoaie Tudor-Bogdan, Silva Abraham Castellanos, Alma Marouane   +3 more
doaj   +1 more source