Continuous tuning of the plasmon resonance frequency of porous gold nanoparticles by mixed oxide layers
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Porous Materials"
DOI: 10.1007/s10934-020-00933-w
Abstract: Porous gold nanoparticles (PGNs) are very popular due to their high surface/volume ratio, moreover they have stronger plasmonic properties than their solid counterparts. These properties make the porous gold nanoparticles very useful for lots of… read more here.
Keywords: mixed oxide; gold nanoparticles; resonance frequency; oxide layers ... See more keywords
Mesoporous Silica Microspheres Composited with SBA-15s for Resonance Frequency Reduction in a Miniature Loudspeaker
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Research in Chinese Universities"
DOI: 10.1007/s40242-020-0028-z
Abstract: Microspheres composited with mesoporous SBA-15 particles and silica were investigated as fillers in miniature loudspeakers to study the factors influencing the resonance frequency offsets(RFOs). Mesoporous silica microspheres(MSMs) were prepared by self-assembling SBA-15 mesoporous silica in… read more here.
Keywords: resonance frequency; mesoporous silica; microspheres composited; silica microspheres ... See more keywords
Schumann resonance frequency and conductivity in the nighttime ionosphere of Mars: A source for lightning
Sign Up to like & getrecommendations! Published in 2019 at "Advances in Space Research"
DOI: 10.1016/j.asr.2018.12.006
Abstract: Abstract We have solved the Maxwellian equations of electromagnetic waves which oscillate within the cavity formed in the lower ionosphere of Mars between 0 and 70 km. The electrical conductivity and Schumann Resonance (SR) frequencies are… read more here.
Keywords: schumann resonance; ionosphere mars; resonance frequency; conductivity ... See more keywords
Performance optimization of hybrid fiber concrete according to mechanical properties
Sign Up to like & getrecommendations! Published in 2020 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2020.119952
Abstract: Abstract In this research, interactional effects of four different fiber types, (steel, glass, synthetic and polypropylene) fly ash replacement ratio with cement, electrical arc furnace slag replacement ratio with natural aggregate and binder dosage on… read more here.
Keywords: resonance frequency; fiber; compressive strength; mechanical properties ... See more keywords
A new autoregressive moving average modeling of H/V spectral ratios to estimate the ground resonance frequency
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2020.105957
Abstract: Abstract We propose a new method to estimate the horizontal-to-vertical (H/V) spectral ratio using microtremor measurements. The technique is based on modeling the H/V transfer function by means of an AutoRegressive Moving Average (ARMA) filter.… read more here.
Keywords: new autoregressive; resonance frequency; frequency; moving average ... See more keywords
Resonance frequency analysis of lead-acid cells: An EIS approach to predict the state-of-health
Sign Up to like & getrecommendations! Published in 2020 at "Journal of energy storage"
DOI: 10.1016/j.est.2019.101143
Abstract: Abstract We present in this work a new electrochemical impedance spectroscopy approach for lifetime prediction of lead-acid cells under imposed aging conditions. Frequency dependent impedance fluctuations are being monitored during charging and discharging sequences of… read more here.
Keywords: state; resonance frequency; frequency; acid cells ... See more keywords
Tuning the ferromagnetic resonance frequency of soft magnetic film by patterned permalloy micro-stripes with stripe-domain
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2018.02.060
Abstract: Abstract Periodic micro-stripes arrays with stripe domains structures upon continuous permalloy (Py) film were fabricated by sputtering, photolithography and ion beam etching technology. These samples display in-plane magnetic anisotropy, and stripe domains structure is observed… read more here.
Keywords: resonance frequency; micro stripes; film; micro ... See more keywords
The Evaluation of Resonance Frequency for Piezoelectric Transducers by Machine Learning Methods
Sign Up to like & getrecommendations! Published in 2017 at "Procedia Manufacturing"
DOI: 10.1016/j.promfg.2017.07.300
Abstract: Abstract Piezoelectric transducers are used in the application of sending and receiving sound waves. The distance at which the sound waves can be transmitted is determined by the transducer frequency. Therefore, measuring the frequency becomes… read more here.
Keywords: machine; machine learning; resonance frequency; frequency ... See more keywords
Microtremor measurement to evaluate site characteristics by horizontal to vertical spectral ratio technique in Sikkim, Northeast Himalayas, India
Sign Up to like & getrecommendations! Published in 2020 at "Quaternary International"
DOI: 10.1016/j.quaint.2020.11.028
Abstract: Abstract The measurement of site amplification of microtremors is an important tool for evaluating seismic hazard at local and regional level. The H/V spectral ratio (HVSR) method is applied to estimate the amplification of ground… read more here.
Keywords: resonance frequency; frequency; spectral ratio; site ... See more keywords
Electrothermally actuated tunable clamped-guided resonant microbeams
Sign Up to like & getrecommendations! Published in 2018 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2017.05.049
Abstract: Abstract We present simulation and experimental investigation demonstrating active alteration of the resonant and frequency response behavior of resonators by controlling the electrothermal actuation method on their anchors. In-plane clamped-guided arch and straight microbeams resonators… read more here.
Keywords: electrothermally actuated; tunable clamped; resonance frequency; clamped guided ... See more keywords
Novel Sensing Technology for Real-Time Detection of Carbon Deposition on a Solid Catalyst Using the Resonance Frequency Shift of Single-Mode Microwave
Sign Up to like & getrecommendations! Published in 2019 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.9b01728
Abstract: We report a novel approach for the real-time and highly sensitive detection of carbon deposition on solid catalysts using the resonance frequency shift of a single-mode microwave. Using a microwave reactor system, the change in… read more here.
Keywords: carbon; detection; carbon deposition; resonance frequency ... See more keywords