نتایج جستجو برای: sinusoidal functions

تعداد نتایج: 502448  

2014
Norifumi Kawada

The 17th ISCHS took place in Osaka, Japan, on 23 to 25 September 2013. This symposium focuses on an exchange of views on the structure and function of hepatic sinusoidal cells in addition to their roles in clinical pathophysiology.

1998
Michael M. Goodwin

The sinusoidal model has proven useful for representation and modi cation of speech and audio. One drawback, however, is that a sinusoidal signal model is typically derived using a xed frame size, which corresponds to a rigid signal segmentation. For nonstationary signals, the resolution limitations that result from this rigidity lead to reconstruction artifacts. It is shown in this paper that ...

Journal: :The British journal of ophthalmology 1980
L D Beazley D J Illingworth A Jahn D V Greer

Contrast sensitivity functions to vertical sinusoidal gratings have been measured in 135 subjects ranging from 3 to 29 years of age. The reported contrast sensitivities for all spatial frequencies increased steadily with age, reaching adult levels during adolescence. The usefulness of these functions as a clinical test is discussed.

Journal: :hepatitis monthly 0
takaharu kawai department of digestive surgery and pathology, school of medicine, nihon university, tokyo, japan shintaro yamazaki department of digestive surgery and pathology, school of medicine, nihon university, tokyo, japan; department of digestive surgery, school of medicine, nihon university school of medicine, tokyo, japan. tel: +81-339728111 atsuko iwama department of digestive surgery and pathology, school of medicine, nihon university, tokyo, japan tokio higaki department of digestive surgery and pathology, school of medicine, nihon university, tokyo, japan masahiko sugitani department of digestive surgery and pathology, school of medicine, nihon university, tokyo, japan tadatoshi takayama department of digestive surgery and pathology, school of medicine, nihon university, tokyo, japan

conclusions atypical irregular tumors should be considered as sos when the patient has received oxaliplatin-based chemotherapy. a qualitative imaging modality diagnosis, such as with diffusion-weighted mri, is superior to a morphological diagnosis in focal sos. this imaging modality can prevent unnecessary operations. case presentation a 40-year-old woman with rectal cancer underwent high anter...

2005
Kihong Kim Jinkeun Hong Jongin Lim

The sinusoidal speech model represents a speech signal as a linear combination of sinusoids with time-varying parameters {amplitudes, frequencies, and phases}. However, one drawback of this model is that the analysis window width is generally fixed in analyzing the signal. Since each sinusoidal parameter has different frequencies, an analysis window with fixed width can’t guarantee an optimum s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و زبانهای خارجی 1391

this study was intended to analyze the listening tapescripts of the elementary and pre-intermediate levels of total english textbooks from the pragmatic dimension of language functions and speech acts in order to see whether the listening tasks are pragmatically informative or not. for this purpose, 8 conversations from the two books were selected randomly, and then, the two pragmatic models of...

2006
Bingsen Wang Giri Venkataramanan

In this paper, the indirect matrix converter is systematically studied with the single-pole-multiple-pole representation. A carrier based PWM algorithm is developed in two steps. First, the continuous modulation functions for all the throws are derived based on the desired sinusoidal input currents. Then the switching functions are derived from the modulation functions with focus on the zero cu...

Journal: :Computational Statistics & Data Analysis 2013
Swagata Nandi Debasis Kundu Rajesh Kumar Srivastava

In this paper, we address the estimation of the parameters of the two dimensional sinusoidal signal model. The proposed method is the two dimensional extension of the one dimensional noise space decomposition method. The proposed methods provide consistent estimators of the unknown parameters and they are non-iterative in nature. We propose a pairing algorithm also, which helps in identifying t...

1999
G. LARRY BRETTHORST

ABSTRACT: Probability theory is applied to the problem of estimating the amplitudes of the sinusoids in nuclear magnetic resonance data containing two exponentially decaying sinusoids. The posterior probability-density of one of the amplitudes is derived independent of the phases, frequencies, decay-rate constants, variance of the noise, and the amplitude of the other sinusoid. This probability...

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