ترجمه مقاله با عنوان New Efficient Numerical Method for Solving Pair Correlation Equations for Diatomic Molecules

اختصاصی از فی موو ترجمه مقاله با عنوان New Efficient Numerical Method for Solving Pair Correlation Equations for Diatomic Molecules دانلود با لینک مستقیم و پر سرعت .

متن کامل ترجمه مقاله ISI در wiley در فایل word به فروش می رسد که ترجمه چکیده آن را به عنوان نمونه می توانید ملاحظه فرمایید.

New Efficient Numerical Method for Solving Pair Correlation Equations for Diatomic Molecules

Abstract

A new method for solving correlation pair equations for diatomics is presented and followed by numerical results for the H, and LiH molecules. The essential feature of the new approach is a numerical representation of both basis two-electron functions and Coulomb and exchange potentials in pair equations. It is shown that this significantly simplifies the pair function optimization procedure.

روش عددی جدید و کارآمد برای حل معادلات همبستگی دوتایی برای مولکول دو اتمی

چکیده

یک روش جدید برای حل معادلات همبستگی دوتایی برای مولکولهای دو اتمی ارائه شده است و پس از آن نتایج عددی برای مولکول های H2 و LiH بدست آمده است. از ویژگی های اساسی این روش جدید، نمایش عددی هر دو توابع دو الکترونی و کولنی و پتانسیل های مبادله در معادلات دوتایی می­باشد. نشان داده شده است که این روش به طور قابل توجهی روش بهینه سازی توابع دوتایی را آسان می­کند.

کتاب فیزیک تشعشع برای فیزیک پزشکی Radiation physics for medical physics زبان اصلی

اختصاصی از فی موو کتاب فیزیک تشعشع برای فیزیک پزشکی Radiation physics for medical physics زبان اصلی دانلود با لینک مستقیم و پر سرعت .

کتاب فیزیک تشعشع برای فیزیک پزشکی- زبان اصلی

Radiation physics for medical physics

ویرایش دوم

حجم فایل: 9.7 مگابایت

apples are good for you Yum Yum Yum

اختصاصی از فی موو apples are good for you Yum Yum Yum دانلود با لینک مستقیم و پر سرعت .

انیمیشن موزیکال کودکانه برای یادگیری اسامی میوه ها. مناسب برای آموزش اسامی میوه ها به خردسالان.

Development and validation of MCNP4C-based Monte Carlo simulator for fan- and cone-beam x-ray CT

اختصاصی از فی موو Development and validation of MCNP4C-based Monte Carlo simulator for fan- and cone-beam x-ray CT دانلود با لینک مستقیم و پر سرعت .

An x-ray computed tomography (CT) simulator based on the Monte Carlo
N-particle radiation transport computer code (MCNP4C) was developed for
simulation of both fan- and cone-beam CT scanners. A user-friendly interface
running under Matlab 6.5.1 creates the scanner geometry at different views
as MCNP4C’s input file. The full simulation of x-ray tube, phantom
and detectors with single-slice, multi-slice and flat detector configurations
was considered. The simulator was validated through comparison with
experimental measurements of different nonuniform phantoms with varying
sizes on both a clinical and a small-animal CT scanner. There is good
agreement between the simulated and measured projections and reconstructed
images. Thereafter, the effects of bow-tie filter, phantom size and septa length
on scatter distribution in fan-beam CT were studied in detail. The relative
difference between detected total, primary and scatter photons for septa length
varyingbetween0and95mmis11.2%,1.9%and84.1%,respectively,whereas
the scatter-to-primary ratio decreases by 83.8%. The developed simulator is a
powerfultoolforevaluatingtheeffectofphysical, geometricalandotherdesign
parameters on scanner performance and image quality in addition to offering a
versatile tool for investigating potential artefacts and correction schemes when
using CT-based attenuation correction on dual-modality PET/CT units.

Metal artifact reduction strategies for improved attenuation correction in hybrid PET/CT imaging

اختصاصی از فی موو Metal artifact reduction strategies for improved attenuation correction in hybrid PET/CT imaging دانلود با لینک مستقیم و پر سرعت .

Metallic implants are known to generate bright and dark streaking artifacts in x-ray computed
tomography (CT) images, which in turn propagate to corresponding functional positron emission
tomography (PET) images during the CT-based attenuation correction procedure commonly
used on hybrid clinical PET/CT scanners. Therefore, visual artifacts and overestimation and/or
underestimation of the tracer uptake in regions adjacent to metallic implants are likely to occur and
as such, inaccurate quantification of the tracer uptake and potential erroneous clinical interpretation
of PET images is expected. Accurate quantification of PET data requires metal artifact reduction
(MAR) of the CT images prior to the application of the CT-based attenuation correction procedure.
In this review, the origins of metallic artifacts and their impact on clinical PET/CT imaging are
discussed. Moreover, a brief overview of proposed MAR methods and their advantages and
drawbacks is presented. Although most of the presented MAR methods are mainly developed for
diagnostic CT imaging, their potential application in PET/CT imaging is highlighted. The
challenges associated with comparative evaluation of these methods in a clinical environment in
the absence of a gold standard are also discussed. V
C 2012 American Association of Physicists in
Medicine.

برای باز کردن فایل زیپ شده از برنامه زیر استفاده کنید

لینک دانلود