Introduction Cerebral blood volume (CBV) in brain tumours reflects vascularity and can be used to differentiate intracranial tumour types. Measurement of CBV with dynamic susceptibility weighted imaging (DSC-MRI) requires injection of a contrast agent. As an alternative, a recently introduced, model-free arterial spin labelling technique (ASL) named QUASAR enables quantification of cerebral blo...

INTRODUCTION Blood oxygen level-dependent (BOLD) magnetic resonance imaging (MRI) during manipulation of inhaled carbon dioxide (CO2) can be used to measure cerebrovascular reactivity (CVR) and map regions of exhausted cerebrovascular reserve. These regions exhibit a reduced or negative BOLD response to inhaled CO2. In this study, we sought to clarify the mechanism behind the negative BOLD resp...

Е.А. Abramova, Anesthesiologist, Resuscitator, Resuscitation and Intensive Care Unit, Nizhny Novgorod Regional Traumatology Center1; А.О. Trofimov, MD, PhD, Assistant, Department of Neurology, Neurosurgery and Medical Genetics2; G.А. Boyarinov, MD, DSc, Professor, Head of the Department of Anesthesiology and Resuscitation, Faculty of Doctors’ Advanced Training2; О.V. Voennov, MD, DSc, Professor...

Tungsten dioxide (WO(2)) nanorods were synthesized, which showed excellent catalytic activity for the reduction of triiodide to iodide. The dye-sensitized solar cell (DSC) using WO(2) as a counter electrode (CE) reached a high energy conversion efficiency of 7.25%, which can match the performance of the DSC based on a Pt CE.

Large eddy simulation of turbulent flow is given a natural setting in the DSC framework of computational fluid dynamics. Periodic cellular coarsegraining prevents the nodal flow from piling up and preserves its large patterns. The coarsening operations are consistent with the near-field interaction principle of DSC and therefore uncomplicated at boundaries. Numerical examples validate the appro...

Static analysis of shear deformable plates resting on two-parameter foundations is presented by the method of discrete singular convolution (DSC). The influence of foundation parameters on the deflections of the plate has been investigated. Numerical studies are performed and the DSC results are compared well with other analytical solutions and some numerical results.

در این تحقیق به مقایسه تحلیلی و عددی آبشار جریان برگشتی مدل R با آبشارهای Q QI سیستم‌­های چندجزیی پایدار پرداخته می‌­شود. راستا برای اولین بار کدهای جهت طراحی منظور کد نرم‌افزار متلب نوشته شده‌­اند. نتایج نشان می‌­دهد که دو جزء 1k 2k از خوراک Nc جزء، تعداد معدودی قابل تعریف است همگی حالات خاصی می­‌باشد. هم‌­چنین یافته‌­ها مجموع مقدار برش جزیی همیشه برابر یک است. طریق داده می‌­شود صورتی میانگین ...