نتایج جستجو برای: simplified dynamic phantom

تعداد نتایج: 468909  

1994
Kwan Lawrence Yeung Tak-Shing Peter Yum

In this paper, we propose the phantom cell analysis for dynamic channel assignment. This is an approximate analysis that can handle realistic planar systems with the threecell channel-reuse pattern. To find the blocking probability of a particular cell, two phantom cells are used to represent its six neighboring cells. Then, by conditioning on the relative positions of the two phantom cells, th...

B. Li, G. Xu, H. Jiang, H. Wang, L. Liu, Z. Xiong,

Background: The dynamic phantom is one of the best tools to study the impact of motion on tumor target delineation and absorbed dose verification during dose delivery. Materials and Methods: this study, a 6-DOF (degrees of freedom) phantom was designed following the stacked serial kinematics and assembled by six commercial motion stages to generate 6-DOF motion, which were RotX (pitch, around X...

2008
Randall L. Barbour Rehman Ansari Rabah Al abdi Harry L. Graber Mikhail B. Levin Yaling Pei Christoph H. Schmitz Yong Xu

For much of the past decade, we have developed most of the essential hardware and software components needed for practical implementation of dynamic NIRS imaging. Until recently, however, these efforts have been hampered by the lack of calibrating phantoms whose dynamics substantially mimic those seen in tissue. Here we present findings that document the performance of a dynamic phantom based o...

2018
Sebastian Dieguez Mélanie Kaeser Camille Roux Jérôme Cottet Jean‐Marie Annoni Eric Schmidlin

Patients with supernumerary phantom limb report experiencing an additional limb duplicating its physical counterpart, usually following a stroke with sensorimotor disturbances. Here, we report a short-lasting case of a right upper supernumerary phantom limb with unusual visuomotor features in a healthy participant during a pure Jacksonian motor seizure unexpectedly induced by continuous Theta-B...

2004
JIDONG HOU Mark K. Hinders

A novel ultrasonic signal detection and characterization technique is presented in this dissertation. The basic tool is a simplified time-frequency (scale) projection called a dynamic wavelet fingerprint. Take advantage of the matched filter and adaptive time-frequency analysis properties of the wavelet transform, the dynamic wavelet fingerprint is a coupled approach of detection and recognitio...

2011
Yongsook C Lee Gary D Fullerton Cristel Baiu Margaret G Lescrenier Beth A Goins

BACKGROUND Evaluation of changes in tumor size from images acquired by ultrasound (US), computed tomography (CT) or magnetic resonance imaging (MRI) is a common measure of cancer chemotherapy efficacy. Tumor size measurement based on either the World Health Organization (WHO) criteria or the Response Evaluation Criteria in Solid Tumors (RECIST) is the only imaging biomarker for anti-cancer drug...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
amir heidari mansour shirvani

in this contribution, linearized dynamic model of cumulative mass fraction (cmf) of potassium nitrate-water seeded continues mixed suspension mixed product removal (cmsmpr) crystallizer is approximated by a simplified model in frequency domain. frequency domain model simplification is performed heuristically using the frequency response of the derived linearized models data. however, the cmf fr...

Journal: :E3S web of conferences 2023

The article is devoted to the issues of nuclear energy. It considers a simplified dynamic model simulating main processes occurring in power plant. basis proposed heat release reactor, relative neutron and temperature coolant hot thread circulation circuit. position absorbing assemblies, which determines reactivity introduced by them, formed an operational control that simulates bringing assemb...

Journal: :Canadian Journal of Civil Engineering 1975

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