the purpose of this study was to investigate magnetic resonance imaging (mri) of the normal feline eyeand optic nerves using t1-weighted and t2-weighted images. a total of 6 healthy female domestic short haircats age 2-2.5 years and weighing 3.2 ± 0.4 kg were selected. magnetic resonance imaging data werecollected using gemsow (philips) at a magnetic field strength of 1.5 t. dorsal, sagittal, a...

the evolution of texture was discussed during the formation of ultra-fine and nano grains in a magnesium alloy severely deformed through accumulative back extrusion (abe). the microstructure and texture obtained after applying multiple deformation passes at temperatures of 100 and 250°c were characterized. the results showed that after single abe pass at 100°c an ultrafine/nano grained microstr...

In this work, a wideband low-sidelobe slot array antenna for wireless communication system at E-band is presented. The slots are excited by parallel feeding network where the Taylor distribution applied. Two types of unequal power divider with compact structures designed various output ratios to fit limited space. One integrated vertically inside 2 <inline-formula xmlns:mml="http://www.w3.org/1...

An intrinsic reverberation chamber with non-parallel walls, ceiling not parallel to the floor, at most two walls placed perpendicular and with fixed field diffusers is presented. Inside this room no eigenmodes exist and a diffuse, statistically uniform field is created without the use of a mechanical mode stirrer. As a result, test time can be reduced drastically compared to mode stirred reverb...

We present an efficient three-phase algorithm for volume viewing that is based on exploitt ing coherency between rays in parallel projection. The algorithm starts by building a ray emplate and determining a special plane for projection – the base-plane. Parallel rays are cast t into the volume from within the projected region of the volume on the base-plane, by repeating he sequence of steps sp...

In this paper we present a voxel-based 3-D reconstruction technique that computes a set of non-transparent object surface voxels from a given set of calibrated camera views. We show that the quality of the reconstruction strongly depends on the accuracy of the computed voxel projection in the image plane and discuss different approximations of the exact projection. The most simple and computati...

purpose: to compare anterior segment and ocular biometric parameters of unaffected fellow eyes of patients with a previous attack of acute angle closure (aac), primary angle closure suspect (pacs) eyes, and normal eyes; and to assess the risk of developing aac in pacs. methods: in this prospective comparative observational case series, 16 unaffected fellow eyes of patients with a previous attac...

PURPOSE To define the optimal cardiac short-axis cine acquisition protocol for the assessment of the left and rightventricular functions. MATERIALS AND METHODS 20 volunteers were recruited and breath-hold CINE images were acquired on a Siemens Prisma 3T MRI. Four short-axis acquisition planes were defined from the 4-chamber view. AV Junctions: short-axis slices parallel to the plane that cuts...

In this paper a new 3D plane rasterization algorithm based on weaving techniques is presented. This algorithm uses the coherence present in 3D parallel lines within the plane. Parallel lines have the same cyclic Freeman chain code but shifted by a parameter. This article provides the theory to determine this shift parameter.