نتایج جستجو برای: mras based observer

تعداد نتایج: 2952659  

Journal: :Lecture Notes in Computer Science 2022

The growth of unruptured intracranial aneurysms (UIAs) is a predictor rupture. Therefore, for further imaging surveillance and treatment planning, it important to be able predict if an UIA likely grow based on initial baseline Time-of-Flight MRA (TOF-MRA). It known that the size shape UIAs are predictors aneurysm and/or We perform feasibility study using mesh convolutional neural network future...

K. Busawon, R. Kharel, Z. Ghassemlooy,

In this paper, we propose a new chaos-based communication scheme using the observers. The novelty lies in the masking procedure that is employed to hide the confidential information using the chaotic oscillator. We use a combination of the addition and inclusion methods to mask the information. The performance of two observers, the proportional observer (P-observer) and the proportional integra...

Journal: :hepatitis monthly 0
omid pournik department of medical informatics, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran; faculty of advanced technologies in medicine, iran university of medical sciences, tehran, ir iran seyed moayed alavian middle east liver diseases center (meld), tehran, ir iran; baqiyatallah research center for gastroenterology and liver diseases, baqiyatallh university of medical sciences, tehran, ir iran leila ghalichi mental health research center, iran university of medical sciences, tehran, ir iran bahram seifizarei school of medicine, shahid beheshti hospital, hamedan university of medical sciences, hamedan, ir iran leila mehrnoush middle east liver diseases center (meld), tehran, ir iran azam aslani department of medical informatics, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran

results inter-observer agreement of the pathology scores based on nas scoring system was acceptable for steatosis, lobular inflammation, and fibrosis, but not for hepatocyte ballooning. the intra-observer agreement was acceptable in all scales, with lowest intra-class correlation observed for lobular inflammation. materials and methods the anonymous liver biopsy samples of 100 consecutive nafld...

2013
I. Hassanzadeh A. Nejadfard

This paper considers the design and practical implementation of linear-based controllers for a cart-type double inverted pendulum DIPC . A constitution of two linked pendulums placed on a sliding cart, presenting a three Degrees of Freedom and single controlling input structure. The controller objective is to keep both pendulums in an up-up unstable equilibrium point.Modeling is based on the Eu...

2013
A. Khlaief M. Boussak M. Gossa

Vector field oriented control (VFOC) of permanent magnet synchronous motor (PMSM) drive requires accurate velocity information sensed by a speed or position sensor attached to the rotor. Nowadays, sensorless control is adopted in many industrial applications for reasons of robustness, cost, cabling and reliability. This paper presents a novel sensorless control strategy and initial rotor positi...

2011
Youcef Bekakra Djilani Ben attous

In this paper, a field oriented control (FOC) induction motor drive is presented. In order to eliminate the speed sensor, an adaptation algorithm for tuning the rotor speed is proposed. Based on the Model Reference Adaptive System (MRAS) scheme, the rotor speed is tuned to obtain an exact FOC induction motor drive. The reference and adjustable models, developed in stationary stator reference fr...

Journal: :International Journal of Power Electronics and Drive Systems 2022

<p class="Abstract"><span lang="EN-US">A novel online induction motor (IM) rotor time constant estimator based on a perturbation-based extremum seeking control (ESC) and model reference adaptive system (MRAS) is proposed. Since implementations of fieldoriented (FOC) requires accurate values IM parameters, such as constant, so robust on-line estimations parameters are crucial for any...

2016
Ningzhi Jin Qidan Zhu Zhongmin Zhang Yongqing Zhou

For an interior permanent magnet synchronous motor (IPMSM) control system, the actual maximum torque per ampere (MTPA) trajectory may deviate from the ideal one with parameter variances, and thus the system may not obtain the maximum torque output. In view of this problem, a novel parameter identification method based on the model reference adaptive system (MRAS) is proposed in this paper. In t...

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