A conventional twin-roll caster usually casts strips at a speed slower than 2 m/min and roll load greater kN/mm. vertical-type high-speed can cast aluminum alloy higher 10 smaller 550 N/mm due to the effect of large thermal conductivity copper rolls, compared with that steel rolls. However, properties an strip 140 30 are not clear. In this study, Al–5%Mg were loads 88 using caster. The effects ...

Let $n\in \mathbb{N}, n\geq 2.$ An element $x=(x_1, \ldots, x_n)\in E^n$ is called a {\em norming point} of $T\in {\mathcal L}(^n E)$ if $\|x_1\|=\cdots=\|x_n\|=1$ and$|T(x)|=\|T\|,$ where ${\mathcal denotes the space all continuous $n$-linear forms on $E.$For we define set} $T$
 \centerline{$\qopname\relax o{Norm}(T)=\Big\{(x_1, E^n: (x_1, x_n)~\mbox{is point of}~T\Big\}.$}
 By $i=(i...

The extraction of vessel centerlines allows for better understanding of their topology, and can be used for further registration or quantification. We present a new method to extract the centerlines from Magnetic Resonance Angiographies. We use the gradient and the eigenvalues of the Hessian matrix to interpolate the zero-crossing of the gradient vector in the cross-sectional directions. Then, ...

Triangulation of LiDAR data can produce unnatural water surface. Therefore, it is necessary to hydroflatten LiDAR data. Hydro-flattening is driven primarily by cartographic mapping needs, and can also help hydrologic analysis, because hydro-flattened surfaces behave naturally; allowing water flow from upstream to downstream. Detailed hydro-flattening requirements have been stated by USGS, which...

Umbilical artery Doppler velocimetry waveform notching has long been associated with umbilical cord abnormalities, such as distortion, torsion, and/or compression (i.e., constriction). The physical mechanism by which the notching occurs has not been elucidated. Flow velocity waveforms (FVWs) from two-dimensional pulsatile flows in a constricted channel approximating a compressed umbilical cord ...

Centerline Extraction of curvilinear objects is a crucial component of virtual endoscopy (VE), because it provides a path planning for both automatic and interactive navigation. During navigation, centerlines must be connected, smooth, and centered. Preserving connectivity was always a problem to many skeletonization methods. One such recent tempting method, is the voxel coding algorithm that e...

We present a novel method for the automated extraction of blood vessel centerlines. There are two major contributions. First, in order to avoid the shortcuts that minimal path methods are prone to we find optimal paths in a computed flow field. We solve for a steady state porous media flow inside a region of interest and trace centerlines as maximum flow paths. We explain how to estimate anisot...