نتایج جستجو برای: rectangular and annular sections

تعداد نتایج: 16841225  

Journal: :گوارش 0
foroogh alborzi naser ebrahimi daryani nader roshan masoud mami najmeh ale taha

annular pancreas (ap) is a rare congenital abnormality in which pancreatic tissue completely surround the duodenum. presentation of ap in adulthood is very rare and obstructive jaundice is one of the uncommon manifestations of ap in adults. herein; we reported a 47 years old woman who presented with icterus, midcommon bile duct stricture and annular pancreas. she was diagnosed as pancreas cance...

Journal: :Circulation research 1989
N J Severs K S Shovel A M Slade T Powell V W Twist C R Green

The fate of gap junctions in dissociated adult myocytes, maintained for up to 22 hours in culture medium, was investigated by semiquantitative analysis of thin sections and by freeze-fracture electron microscopy. Gap junctions in the dissociated myocyte are intact bimembranous structures seen either as invaginated surface-located structures or as annular profiles in the cytoplasm. Surface-locat...

2013
JANG SOO KIM

We show cyclic sieving phenomena on annular noncrossing permutations with given cycle types. We define annular q-Kreweras numbers, annular q-Narayana numbers, and annular q-Catalan numbers, and show that a sum of annular q-Kreweras numbers becomes an annular q-Narayana number and a sum of annular q-Narayana numbers becomes an annular q-Catalan number. We also show that these polynomials are clo...

Journal: :Symmetry 2023

The temperature distribution in a conductive-radiative rectangular profiled annular fin with internal heat generation is scrutinized the present investigation. nonlinear variation of thermal conductivity and transfer coefficient governed by power law considered. analytical approximation for non-dimensional profile obtained using differential transform method (DTM)-Pade approximant. nondimension...

Journal: :the journal of tehran university heart center 0
asadolah tanasan besat hospital, hamadan university of medical sciences, hamadan, iran. keyhan sayadpour-zanjani children’s medical center, tehran university of medical sciences, tehran, iran. armen kocharian children’s medical center, tehran university of medical sciences, tehran, iran. abdolrazagh kiani children’s medical center, tehran university of medical sciences, tehran, iran. mohammadali navabi children’s medical center, tehran university of medical sciences, tehran, iran.

background: longer survival after the total repair of the tetralogy of fallot increases the importance of late complications such as right ventricular dysfunction. this is a prospective study of the right ventricular function in totally corrected tetralogy of fallot patients versus healthy children. methods: thirty-two healthy children were prospectively compared with 30 totally corrected tetra...

2011
I. R. Simpson P. Hitchcock T. G. Shepherd J. F. Scinocca

[1] Climate models tend to exhibit much too persistent Southern Annular Mode (SAM) circulation anomalies in summer, compared to observations. Theoretical arguments suggest this bias may lead to an overly strong model response to anthropogenic forcing during this season, which is of interest since the largest observed changes in Southern Hemisphere high‐latitude climate over the last few decades...

Journal: :Fetal diagnosis and therapy 2008
Robert Dankovcik Jan E Jirasek Eduard Kucera Jaroslav Feyereisl Jozef Radonak Marek Dudas

OBJECTIVE To evaluate the power of prenatal 2-D ultrasound examination in the 2nd trimester as a method of choice for accurate diagnosis of annular pancreas. METHODS Co-incidence of the double bubble sign (often accompanying gastroduodenal dilatation) together with a hyperechogenic band around the duodenum (corresponding with the tissue of annular pancreas) was used as a diagnostic criterion....

Mohammad Reza Borna Mohammad Reza Pirestani,

Pre-sedimentation basins are among the most important elements of the conventional water treatment process. In pre-sedimentation basins, due to different velocity gradients, secondary and rotational flows are formed that will create short paths and increase dead and still flow zones as well as changes in the flow mixing. This will prevent laminar flow conditions for sedimentation and will reduc...

2005
W. Salah J. Al-Jundi

Total L X-ray fluorescence cross-sections have been measured for the elements La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Tm, Yb and Lu using a photon energy of 15.2 keV. The measurements have been performed using an annular source of Am. The obtained cross-sections were then compared with the theoretical values evaluated using semi-empirically fitted values of L-subshell fluorescence yields and Coster...

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