Results 11 to 20 of about 766,611 (315)

Learning Multi-Frequency Partial Correlation Graphs [PDF]

open access: greenIEEE Transactions on Signal Processing, 2023
Despite the large research effort devoted to learning dependencies between time series, the state of the art still faces a major limitation: existing methods learn partial correlations but fail to discriminate across distinct frequency bands. Motivated by many applications in which this differentiation is pivotal, we overcome this limitation by ...
Gabriele D’Acunto   +4 more
openalex   +4 more sources

Multi-frequency resonant clocks [PDF]

open access: yes2015 IEEE International Symposium on Circuits and Systems (ISCAS), 2015
Clock distribution networks consume a significant portion of total chip power in high-performance designs. Resonant clocks are one proposed method to lower this power in modern designs as well as a fewer required clock buffers. Recent resonant solutions are limited to optimal performance at one particular frequency which is problematic since dynamic ...
Guthaus, Matthew   +2 more
openaire   +2 more sources

Multi-Frequency Band Pyroelectric Sensors [PDF]

open access: yesSensors, 2014
A methodology is proposed for designing a multi-frequency band pyroelectric sensor which can detect subjects with various frequencies or velocities. A structure with dual pyroelectric layers, consisting of a thinner sputtered ZnO layer and a thicker aerosol ZnO layer, proved helpful in the development of the proposed sensor.
Chun-Ching Hsiao, Sheng-Yi Liu
openaire   +3 more sources

Multi-Frequency Canonical Correlation Analysis (MFCCA): A Generalised Decoding Algorithm for Multi-Frequency SSVEP [PDF]

open access: yes2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2021
Stimulation methods that utilise more than one stimulation frequency have been developed for steady-state visual evoked potential (SSVEP) brain-computer interfaces (BCIs) with the purpose of increasing the number of targets that can be presented simultaneously.
Mu, Jing   +3 more
openaire   +3 more sources

Multi-frequency therapeutic ultrasound: A review. [PDF]

open access: yesUltrason Sonochem, 2023
Focused ultrasound is a noninvasive, radiation-free and real-time therapeutic approach to treat deep-seated targets, which benefits numerous diseases otherwise requiring surgeries. Treatment efficiency is one of the key factors determining therapeutic outcomes, but improving it solely by increasing the total power can be limited by the performance of ...
Zhang D   +6 more
europepmc   +4 more sources

Multi-Frequency Synthesis [PDF]

open access: yesInternational Astronomical Union Colloquium, 1991
AbstractA method of improving image fidelity by using observations at multiple frequencies is described. We discuss the power and possible limitations of the technique. Results of narrow frequency range observations with MERLIN and global VLBI are presented. We conclude with a consideration of the possible future impact of this technique.
openaire   +1 more source

Multi-frequency intravascular ultrasound (IVUS) imaging [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2015
Acute coronary syndrome (ACS) is frequently associated with the sudden rupture of a vulnerable atherosclerotic plaque within the coronary artery. Several unique physiological features, including a thin fibrous cap accompanied by a necrotic lipid core, are the targeted indicators for identifying the vulnerable plaques. Intravascular ultrasound (IVUS), a
Teng, Ma   +7 more
openaire   +2 more sources

Advances in classical and analytical mechanics: A reviews of author’s results [PDF]

open access: yesTheoretical and Applied Mechanics, 2013
A review, in subjective choice, of author’s scientific results in area of: classical mechanics, analytical mechanics of discrete hereditary systems, analytical mechanics of discrete fractional order system vibrations, elastodynamics, nonlinear ...
Hedrih-Stevanović Katica R.
doaj   +1 more source

A Novel Tunable Multi-Frequency Hybrid Vibration Energy Harvester Using Piezoelectric and Electromagnetic Conversion Mechanisms

open access: yesApplied Sciences, 2016
This paper presents a novel tunable multi-frequency hybrid energy harvester (HEH). It consists of a piezoelectric energy harvester (PEH) and an electromagnetic energy harvester (EMEH), which are coupled with magnetic interaction.
Zhenlong Xu   +3 more
doaj   +1 more source

Multi-frequency metasurface carpet cloaks

open access: yesOptics Express, 2018
Metasurfaces provide an alternative way to design three-dimensional arbitrary-shaped carpet cloaks with ultrathin thicknesses. Nevertheless, the previous metasurface carpet cloaks work only at a single frequency. To overcome this challenge, we here propose a macroscopic metasurface carpet cloak.
Chan, Wang   +7 more
openaire   +2 more sources

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