نتایج جستجو برای: simplified dynamic phantom

تعداد نتایج: 468909  

Objective(s): Renography is used for the diagnostic evaluation of pediatric patients with a suspected obstruction of urinary tract or impaired renal function. The recommended dose for children have been released by the European Association of Nuclear Medicine, Society of Nuclear Medicine and Molecular Imaging, and Japanese Society of Nuclear Medicine. Since acquisition counts in dynamic scintig...

Today many complex models, typically finite element models, have been employed in the analysis of jacket offshore structures. However, these comprehensive models are not readily adopted in engineering practice, especially during the preliminary design stage. As the dynamic analysis of jacket platforms is very complicated, it will be very advantageous to make a simplified computational method to...

A generalized simplified model for describing the dynamic behavior of distributed parameter systems is proposed. The various specific characteristics of gain and phase angle of distributed parameter systems are investigated from frequency response formulation and complex plane representation of the proposed simplified model. The complex plane investigation renders some important inequality cons...

2009
Lira Hamada Takahiro Iyama Teruo Onishi Soichi Watanabe

We have investigated a simplification procedure of the Specific Absorption Rate (SAR) compliance test for mobile phones. In this paper, it is shown that maximum averaged SARs of a flat phantom and the SAM phantom are measured and compared for 38 mobile phones in the market in order to investigate on the applicability of using the flat phantom instead of the SAM phantom for the SAR measurement. ...

Journal: :journal of biomedical physics and engineering 0
n mohammadi s h miri-hakimabad l rafat-motavalli

background: high-energy linear accelerator (linac) is a valuable tool and the most commonly device for external beam radiation treatments in cancer patients. in the linac head, high-energy photons with energies above the threshold of interaction produce photoneutrons. these photoneutrons deliver the extra dose to the patients in the planning treatment and increase the risk of secondary cancer. ...

2009
Hamed Ajabi Naeeni

Dynamic shear test on simulated phantom can be used to validate magnetic resonance elastography (MRE) measurements. Phantom gel has been usually utilized for the cell culture of cartilage and soft tissue and also been used for mechanical property characterization using imaging systems. The viscoelastic property of the phantom would be important for dynamic experiments and analyses. In this stud...

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 CM...

2010
Zhijun Cai Er-Wei Bai Robert McCabe Moustafa Zerhouni Ge Wang Madhavan Lakshmi Raghavan Jarin Kratzberg

Computed Tomography (CT) and Magnetic Resonance (MR) imaging techniques have become an important role in diagnosing the vascular diseases. Before a clinical trial of the newly developed techniques, it is essential to evaluate them on a phantom. However, there is no existing arterial A Dynamic Arterial Tree Phantom for studies 89 tree phantom that serves for flood flows. To that end, we design a...

Journal: :Thermal Medicine(Japanese Journal of Hyperthermic Oncology) 1985

Journal: :Thermal Medicine(Japanese Journal of Hyperthermic Oncology) 1991

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