نتایج جستجو برای: frequency

تعداد نتایج: 484143  

Journal: :IEEE Transactions on Power Systems 2016

Journal: :ACM Transactions on Internet Technology 2021

Utility-oriented mining which integrates utility theory and data is a useful tool for understanding economic consumer behavior. Traditional algorithms high-utility patterns (HUPs) applies single/uniform minimum threshold (minutil) to obtain the set of HUPs, but in some real-life circumstances, specific products may bring lower utilities compared with others, their profit offer vital information...

ژورنال: فیزیک زمین و فضا 2018

Time-frequency filtering is an acceptable technique for attenuating noise in 2-D (time-space) and 3-D (time-space-space) reflection seismic data. The common approach for this purpose is transforming each seismic signal from 1-D time domain to a 2-D time-frequency domain and then denoising the signal by a designed filter and finally transforming back the filtered signal to original time domain. ...

Journal: :Journal of Pharmacology and Pharmacotherapeutics 2011

A. Noshary, B. Hemati, F. Nazari

Early growth traits in sheep are economically important. Breeding for these traits has been shown to be problematic using quantitative genetic methods, particularly in native sheep herds. Molecular genetics is useful for sheep breeding. The gene for insulin-like growth factor 1 (IGF1) is one of the important candidate genes known for ovine early growth traits. The aim of this study was to inves...

Background: The extensive education on contraceptive methods, particularly in rural areas of developing countries, play a pivotal role in preventing of induced abortion. The main purpose of this study was to determine the prevalence and major cause of induced abortion in women in northwestern Iran. Materials and Methods: The hospital documentary of 848 women encountering medical examinations du...

Journal: :IEEE Trans. Consumer Electronics 2000
Hui Lu Zaiwang Dong

1995
J. Randa

A simple model is developed to characterize the behavior of radio-frequency absorbers at low frequency. The absorber is represented by a flat, homogeneous, isotropic slab of lossy material, with effective constitutive parameters. These parameters are determined by a fit to measured data. Excellent fits are obtained in the two applications considered. The model is intended for use in the charact...

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