نتایج جستجو برای: current sample time signals

تعداد نتایج: 2949104  

Journal: :iranian journal of science and technology (sciences) 2013
sh. a. mansour

the thermally stimulated discharge (tsdc) current is studied for acrylonitrile butadiene rubber (nbr) loaded with different high abrasion furnace carbon black (haf). tsdc peak appears only for higher haf contents > 60phr (70 and 80phr of haf contents), the tsdc spectra consist of a sharp peak corresponding to a peak temperature tm which is slightly shifted to higher temperature for 70phr ...

Journal: :تحقیقات مالی 0
علی ثقفی استاد گروه حسابداری، دانشکده مدیریت و حسابداری، دانشگاه علامه طباطبائی، تهران، ایران سیدمرتضی مرتضوی دانشجوی دکتری حسابداری، دانشگاه علامه طباطبائی، تهران، ایران

this paper takes fundamental analysis research beyond the spatial and temporal bounds of previous studies. it was investigated that how detailed financial statement data enter the decisions of market makers by examining how current changes in the fundamental signals chosen can provide information on subsequent earnings changes. using tehran stock exchange’s firms data from 2003 to 2012, the rol...

2003
Shuren Qin

A main feature of wavelet analysis is localizable characteristic in time-domain and frequency-domain. However, localizable characteristic is formed from time-frequency windows with elasticity. Sampling interval of wavelet transform can be automatically adjusted in the second wavelet sampling, therefore wavelet transform can focus to arbitrary details of observed signal. Sample is the important ...

Journal: :iranian journal of medical physics 0
iman veisi m.sc. in control engineering, electrical engineering dept., faculty of engineering, ferdowsi university, mashhad, iran ali karimpour assistant professor, electrical engineering dept., faculty of engineering, ferdowsi university, mashhad, iran naser pariz associate professor, electrical engineering dept., faculty of engineering, ferdowsi university, mashhad, iran mohammad taghi shakeri associate professor, community medicine and public health dept., mashhad university of medical science, mashhad, iran

introduction: in this paper, a novel complexity measure is proposed to detect dynamical changes in nonlinear systems using ordinal pattern analysis of time series data taken from the system. epilepsy is considered as a dynamical change in nonlinear and complex brain system. the ability of the proposed measure for characterizing the normal and epileptic eeg signals when the signal is short or is...

2014
Neha Arora

Biosensors are devices that combine biological materials and transducers for the detection of sample e.g. drugs, metabolites, pollutants, microbial load, control parameters etc. by converting biochemical signals into measurable physiochemical signals which in turn quantify the amount of sample. There are various types of biosensors depending upon the sensing elements or transducers. Since the f...

2013
Ramon MARTÍNEZ Dana H. BROOKS Burak EREM

One of the biggest challenges in averaging ECG or EEG signals is to overcome temporal misalignments and distortions, due to uncertain timing or complex non-stationary dynamics. Standard methods average individual leads over an collection of epochs on a time-sample by timesample basis, even when multi-electrode signals are available. Here we propose a method that averages multi electrode recordi...

Journal: :ماشین های کشاورزی 0
افشین زینلی عبدالعلی فرزاد محمدحسین آق خانی

torque, speed, and power as mechanical variables are associated with the functional performance of any rotating machinery. the real-time performance and the efficiency of a machine can be determined with on-line measurement of these parameters. in this investigation a rotary torque meter (transducer) was constructed from strain gauge sensors for measuring the torque of rotating shafts. the syst...

Journal: :Journal of the American Statistical Association 2019

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