Results 61 to 70 of about 795,040 (367)

Coupling microstrip line bandpass filter applied to hybrid frequency synthesizers

open access: yesDianzi Jishu Yingyong, 2018
This paper designs a parallel coupled microstrip bandpass filter at the ends of the hybrid frequency synthesizer of PLL+DDS mixing in the outside of the feedback loop systems. This filter is used to suppress the frequency synthesizer′s spurs and harmonic
Chai Xiaorong   +2 more
doaj   +1 more source

Abstract Harmonic Analysis

open access: yes, 1963
harmonic analysis, volume II : structure and analysis for compact groups analysis on locally compact abelian groups / Edwin Hewitt, Kenneth A. Ross Author : Hewitt, Edwin Subject : 1.
E. Hewitt, K. Ross
semanticscholar   +1 more source

Comparative single‐cell transcriptomic profiling of patient‐derived renal carcinoma cells in cellular and animal models of kidney cancer

open access: yesFEBS Open Bio, EarlyView.
We generated and characterized clear cell renal cell carcinoma models using the patient‐derived RCC243 cell line—including cell culture, orthotopic, and metastatic tumors—via single‐cell RNA‐sequencing for comparisons between models and patient tumor datasets.
Richard Huang   +9 more
wiley   +1 more source

Plucking Location and Timbre of a Guitar

open access: yesInternational Scholastic Journal of Science, 2022
A guitar string was plucked at 21 positions spanning the whole string with a consistent plucking method. The sound produced by the pluck was recorded and analyzed under a frequency-amplitude graph.
Lucas Aldea
doaj  

Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging

open access: yesSensors, 2014
For many years, ultrasound has provided clinicians with an affordable and effective imaging tool for applications ranging from cardiology to obstetrics.
K. Heath Martin   +7 more
doaj   +1 more source

Evaluating feature extraction reproducibility across image biomarker standardization initiative‐compliant radiomics platforms using a digital phantom

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The aim of this study was to thoroughly analyze the reproducibility of radiomics feature extraction across three Image Biomarker Standardization Initiative (IBSI)‐compliant platforms using a digital phantom for benchmarking. It uncovers high consistency among common features while also pointing out the necessity for standardization ...
Han‐Back Shin   +5 more
wiley   +1 more source

Harmonics and Reduction of Energy Consumption in Lighting Systems by Using LED Lamps

open access: yesEnergies, 2018
This paper proposes the study and analysis of harmonics, energy consumption and power quality of light emitting diode (LED) lamps equipped in building lighting systems.
Natthanon Phannil   +2 more
doaj   +1 more source

Maximal domains of radial harmonic functions [PDF]

open access: yesarXiv, 2022
We examine the maximal domain of radial harmonic functions on harmonic spaces in the context of positive, zero, and negative curvature.
arxiv  

Geometric diffusions as a tool for harmonic analysis and structure definition of data: diffusion maps.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2005
We provide a framework for structural multiscale geometric organization of graphs and subsets of R(n). We use diffusion semigroups to generate multiscale geometries in order to organize and represent complex structures.
R. Coifman   +6 more
semanticscholar   +1 more source

Harmonizing for Health

open access: yesJACC: Cardiovascular Interventions, 2011
![Figure][1] When musicians harmonize, whether they are a barbershop quartet, the Beach Boys, or a symphony orchestra, the effectiveness is clear. We are now in an era in which effectiveness is a major goal of medical care delivery.
openaire   +3 more sources

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