منابع مشابه
Mechanical Properties of Irregular Fiber (Invited Review Paper)
Irregularities are inherent to virtually all fibers, including the conventional textile fibers, the high-performance brittle fibers and newly developed nano-fibers. These irregularities can fall into two main categories: dimensional or geometrical irregularity (external) and structural irregularity (internal). For natural fibers such as wool, diameter variation along fiber length is atypical ex...
متن کاملIdentification of Pathway Fiber Orientation
The ability to record accessory atrioventricular (AV) pathway activation consistently may be uniquely beneficial in improving pathway localization, identifying anatomic relations, and providing insight into unusual conduction properties. For the purpose of recording left AV accessory pathway activation, an electrode catheter was specially designed for use in the coronary sinus. The orthogonal c...
متن کاملT2*-based fiber orientation mapping
Recent MRI studies at high field have observed that, in certain white matter fiber bundles, the signal in T(2)*-weighted MRI (i.e. MRI sensitized to apparent transverse relaxivity) is dependent on fiber orientation θ relative to B(0). In this study, the characteristics of this dependency are quantitatively investigated at 7 T using ex-vivo brain specimens, which allowed a large range of rotatio...
متن کاملSpatial Transformations of Fiber Orientation Fields
Introduction: It has been shown [1] that one third of voxels in a brain volume include more than one orientation of fibre bundles. To better consider this condition, recently, HARDI methods such as q-ball, DSI, PASMRI, Spherical Deconvolution methods [2, 3, 4, 5, 6], have been proposed. These solutions have demonstrated to be more accurate to describe white matter in regions with complex tissue...
متن کاملStochastic reconstruction of carbon fiber paper gas diffusion layers of PEFCs: A comparative study
A 3D microstructure of the non-woven gas diffusion layers (GDLs) of polymer electrolyte fuel cells (PEFCs) is reconstructed using a stochastic method. For a commercial GDL, due to the planar orientation of the fibers in the GDL, 2D SEM image of the GDL surface is used to estimate the orientation of the carbon fibers in the domain. Two more microstructures with different fiber orientations are g...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 1992
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.41.138