نتایج جستجو برای: apw lo

تعداد نتایج: 40507  

2010
Peter Blaha

A short introduction to periodic bandstructure methods suitable for the calculation of Mössbauer parameters is presented. These methods are based on density functional theory (because we want to treat big and complicated systems) and must be accurate not only in the bonding region (like pseudopotential approaches), but also near the atomic nuclei since Mössbauer parameters depend crucially on t...

Journal: :Physical review 2022

The authors present the self-consistent implementation and validation of MGGA density functionals in highly accurate all-electron augmented plane wave based (APW) method for simulation solid-state materials. are third level functional approximations on Jacob's ladder exchange-correlation functionals. WIEN2k APW code is discussed validated using calculations band gaps, lattice constants, magneti...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1389

بررسی دستگاه های الکترونی همبسته قوی به دلیل خواص غـیر قابل پیش بینی و کاربرد های منحصر به فرد آنها از اهمیت ویژه ای برخوردار است. این ترکیبات به طور عمده شامل عناصری می باشند که تراز d یا f آنها در حال پر شدن است. لذا جستجو برای رهیافت هایی که بتواند خواص ساختاری و الکترونی این دستگاه ها را مورد بررسی قرار دهد به طور ویژه ای مورد توجه قرار گرفته است. از جمله این رهیافت ها می توان به نظریه تابع...

جلالی‌اسدآبادی, سعید, جوانبخت, سمانه,

We studied the architecture of the C60 cluster to drive its atomic positions which can be seen at room temperature. We then used the obtained carbon positions as a basis set for the fcc structure to construct the fcc-C60 compound. Self consistent calculations were performed based on the density functional theory (DFT) utilizing the accurate WIEN2K code to solve the single-particle Kohen-Sham eq...

Journal: :Environmental science. Processes & impacts 2015
Hong Zhang Yu Zhang Min Yang Miaomiao Liu

While antibiotic pollution has attracted considerable attention due to its potential in promoting the dissemination of antibiotic resistance genes in the environment, the antibiotic activity of their related substances has been neglected, which may underestimate the environmental impacts of antibiotic wastewater discharge. In this study, a real-time quantitative approach was established to eval...

Journal: :Circulation 2013
Robert F Adams Michael Argilla Monvadi B Srichai

e present a case of a 23-year-old man with Shone's complex, including bicuspid aortic valve, coarctation of the aorta status post neonatal repair and subsequent stent placement, mitral valve stenosis status post valve repair, and eventual replacement 1 year before the current presentation. A noncontrast thoracic computed tomography scan was performed after his mitral valve replacement to invest...

2013
Vânia G. Almeida João Vieira Pedro Santos Tânia Pereira H. Catarina Pereira Carlos Correia Mariano Pego João Cardoso

The Arterial Pressure Waveform (APW) can provide essential information about arterial wall integrity and arterial stiffness. Most of APW analysis frameworks individually process each hemodynamic parameter and do not evaluate inter-dependencies in the overall pulse morphology. The key contribution of this work is the use of machine learning algorithms to deal with vectorized features extracted f...

2010
Oliver Tills John I. Spicer Simon D. Rundle

Climate change is predicted to increase sea level and cause saline intrusion of coastal freshwaters. This will have consequences for freshwater organisms inhabiting such areas; developmental phenotypic plasticity may facilitate the persistence of freshwater species under such scenarios of increased salinity. Here we investigated developmental plasticity under different salinity treatments (S = ...

Journal: :JPMA. The Journal of the Pakistan Medical Association 2011
Adeel Ahmed Shamim Mubashir Zareen Khan Mehnaz Ahmed Atiq Mansoor Ahmed Khan Muhammad Muneer Amanullah

Aorto-pulmonary window is a relatively rare congenital cardiac malformation with an overall incidence of 0.1%. Pulmonary hypertension develops quickly if the lesion is left untreated hence early surgical intervention is warranted after diagnosis. The surgery for correction of APW has evolved over years, currently an open repair on cardiopulmonary bypass (CPB) with a single patch technique yield...

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