purpose: to present two cases of axial high myopia with esotropia (heavy eye syndrome) and the results of its surgical management. case report: two female subjects (15 and 17 years old) were referred to poostchi eye clinic, shiraz, iran with axial high myopia and esotropia. eye examination revealed more than 50 prism diopter (pd) esotropia and more than 10 pd hypotropia in primary position as w...

medulloblastoma is quite uncommon in the adult population and even rarer in extra-axial site in cerebello- pontine (cp) angle. in this report, a 23-year-old male patient with a two month history of deafness, nausea, vomiting and ataxia is presented. clinical and radiological findings demonstrated a heterogeneously enhanced extra-axial lesion in the right cp angle. total excision was performed a...

this paper investigates axial compression process of multi-layered tubes with circular cross-section under the axial loading in the quasi-static condition using experimental method. some specimens are prepared in seven different groups, namely; empty carbon/epoxy composite tubes, solid carbon/epoxy composite rods, empty copper tubes, composite tubes with silicon sealant filler, concentrically s...

nbo analysis, hybrid density functional theory (b3lyp/6-311+g**) and ab initio molecular orbital (hf/6-311+g**) based methods were used to study the anomeric effects (ae), electrostatic interactions, dipole-dipole interactions and steric repulsion effects on the conformational properties of 2-methoxy- (1), 2-methylthio- (2), 2-methylseleno- (3), 2-fluoro- (4), 2-chloro- (5) and 2-bromocyclohexa...

circularly-polarized antenna is built based on new siw(substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (rhcp) and fabricated in two separate layers. a broadband impedancebandwidth of 13.9% and a rhcp axia...

circularly-polarized antenna is built based on a new siw (substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (rhcp) and fabricated in two separate layers. a broadband impedancebandwidth of 13.9% and a rhcp a...

Cogging torque is the major limitation of axial flux permanent magnet motors. The reduction of cogging torque during the design process is highly desirable to enhance the overall performance of axial flux permanent magnet motors. This paper presents a double-layer magnet design technique for cogging torque reduction of axial flux permanent magnet motor. Initially, 250 W, 150 rpm axial flux brus...

in this paper, a new analytical method is proposed to study the effect of crack and axial load on vibration behavior and stability of the cracked columns. using the local flexibility model, the crack has been simulated by a torsional spring with connecting two segments of column in crack location. by solving governing eigenvalue equation, the effect of crack parameters and axial load on the nat...

leukemia is the most common childhood cancer and accounts for 30-40% of all malignancies. a retrospective review  was performed of the hospital records of 9 children, 6 boys and 3 girls, aged  from 2.5 to 15 years with all initially referred to nemazee hospital nuclear medicine center for whole body bone scanning between 2000 and 2002. bone marrow pathology established all (l1) in two and all (...

geometric and material nonlinear behavior of slender webs in i-column girders having stocky flanges under the action of combined lateral and axial loads is investigated. interaction curves corresponding to the application of compressive and shear loads at buckling and ultimate stages for both web plates and column sections are plotted. in addition, the effects of flange and web slenderness rati...