نتایج جستجو برای: mr model
تعداد نتایج: 2161828 فیلتر نتایج به سال:
A method for training patterns validation for modelling MR damper is proposed. The method was validated with two models based on black-box and semi-phenomenological approaches. An input pattern that allows a better identification of the MR damper model was found. Including a frequency modulated displacement and increased clock period in the training pattern, the MR damper model fitting is impro...
Increasing current vehicle development trends for small, light, front wheel drive vehicles with low idle speeds have been forced automotive industries to use hydraulic engine mounts for further improvement in vibration, noise and harshness (NVH) performance of the vehicles. However, with the development of modern vehicle designs such as hybrid vehicles and variable engine management systems whi...
Background: MR imaging is one of the best diagnostic modalities in medicine. During an MR imaging examination, three types of field are employed to produce images. Various experimental studies have been performed about the effects of each single type of field but only few studies are available on their combination to generate MR imaging. The main objective of this research work is to study the ...
PURPOSE To determine the appropriate use of magnetic resonance (MR) imaging for preoperative staging of prostate cancer. MATERIALS AND METHODS Literature review was performed by using the principles of evidence-based medicine and medical technology assessment. A decision analytic model was used to compare (a) the strategy that radical prostatectomy is performed on the basis of clinical stagin...
This paper presents the development of a magnetorheological (MR) fluid-based variable stiffness and damping isolator for vibration suppressions. The MR fluid isolator used a sole MR control unit to achieve the variable stiffness and damping in stepless and relative large scope. A mathematical model of the isolator was derived, and a prototype of the MR fluid isolator was fabricated and its dyna...
To advance the state of the art of physical-principle-enhanced hybrid artificial neural network (ANN) modeling, network configurations with parallel modules (PMNN) reflecting the structural information of the physical principles have been developed (Cao, 2001). In this paper, the PMNN configuration is applied to develop a scalable and invertible dynamic magneto-rheological (MR) fluid damper mod...
INTRODUCTION Preclinical CT-guided radiotherapy platforms are increasingly used but the CT images are characterized by poor soft tissue contrast. The aim of this study was to develop a robust and accurate method of MRI-guided radiotherapy (MR-IGRT) delivery to abdominal targets in the mouse. METHODS A multimodality cradle was developed for providing subject immobilisation and its performance ...
conclusions the results of the present study indicate that brazilian propolis demonstrated in vitro anti-microbial efficacy against s. mutans and c. albicans. results the antimicrobial efficacy of hexidine against s. mutans and e. coli was higher compared to that of c. albicans. the brazilian propolis (p) mr showed antimicrobial action against s. mutans and c. albicans. the antimicrobial effica...
background: mr imaging is one of the best diagnostic modalities in medicine. during an mr imaging examination, three types of field are employed to produce images. various experimental studies have been performed about the effects of each single type of field but only few studies are available on their combination to generate mr imaging. the main objective of this research work is to study the ...
به منظور بررسی اثر منگنز و اسید سالیسیلیک بر بیان ژن منتون ردوکتاز (mr) و میزان منتول در گیاه نعناع فلفلی آزمایشی به صورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی با سه تکرار اجرا شد. فاکتورهای آزمایش شامل زمان (1، 3 و 5 روز بعد از اعمال تیمار) و تیمار (منگنز با غلظت 500 میکرو مولار و اسید سالیسیلیک با غلظت یک میلی مولار) انتخاب شدند. نتایج تجزیه آماری دادهها نشانداد اثر منگنز و اسید سالیسیل...
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