Results 191 to 200 of about 5,329,790 (237)
Some of the next articles are maybe not open access.
Time-domain analysis in gated cardiac blood pool studies
International Journal of Nuclear Medicine and Biology, 1982A technique is presented for producing functional images derived from equilibrium gated blood pool studies as a means of diagnosing cardiac disease. These functional images are based on characteristics associated with the time variation of the count rate (the time domain) at each point of the image matrix rather than on the Fourier transform of the ...
M L, Freeman +4 more
openaire +2 more sources
Gas Detection from AVO Analysis in Time-frequency Domain
71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009, 2009AVO analysis is one of the most commonly used methods for hydrocarbon reservoir exploration specially gas reservoir. In this method changes of amplitude versus offset caused by lithology and fluid content of formation are studied.
Kahoo, Amin Roshandel, H. R. Siahkoohi
openaire +1 more source
System Analysis in the Time Domain
1991The algorithms discussed in the preceding chapter enable us to manipulate high-order system transfer functions in the frequency domain. To obtain the corresponding time response involves the solution of high-order differential equations, using the inverse Laplace transformation, which is a laborious method even for simple input functions such as step ...
openaire +1 more source
Wind-Induced Vibration Analysis in Time Domain
2011 Fourth International Conference on Information and Computing, 2011Based on harmonic superposition method (WAWS method) under the situation of multiple fluctuating wind speed, the spatial correlation of multi-point and Simiu spectrum were considered. Meanwhile decimation in time Fast Fourier Transform method (DIT-FFT method) was carried on optimizing the speed of wind. Then the fluctuating wind speed long direction of
openaire +1 more source
Neuronal mechanisms for pitch analysis in the time domain
Experimental Brain Research, 1981Many units in the auditory midbrain nucleus (MLD) of the Guinea fowl are found to be tuned to amplitude modulated tones (AM). For a given response maximum the relationship of the period tau m of the modulation frequency fm and the period tau c of the carrier frequency fc may be given by an empirical equation: m . tau m + n . tau c = 1 . tau l, where m,
openaire +2 more sources
Analysis of Cardiotocograms in Time and Frequency Domains
2001Cardiotocography is the most diffused prenatal diagnostic technique in clinical practice. The simultaneous recording of the Fetal Heart Rate (FHR) and of the Uterine Contractions (UC or tocogram) provides information about fetal well-being during pregnancy and labour to doctors and obstetricians.
BIFULCO, PAOLO +4 more
openaire +2 more sources
Corrected Force Analysis Technique in time domain
2020The Corrected Force Analysis Technique (CFAT) is an inverse method used to identify the force distributionthat excites a structure, knowing the resulting vibration field. The known displacement field is set in adiscretized equation of motion corresponding to the studied structure.
Le Roux, Erwan +3 more
openaire +1 more source
Applications in Time-Frequency domain analysis
2017Master of Applied Science (MASc)
openaire +1 more source
The Time Domain and the Frequency Domain in Time Series Analysis
The Swedish Journal of Economics, 1968O. Brandes +3 more
openaire +1 more source