We describe an approach to define contours of 3D vector fields and employ them as an interactive flow visualization tool. Although contours are well-defined and commonly used for surfaces and 3D scalar fields, they have no straightforward extension in vector fields. Our approach is to extract and visualize specific stream lines which show the most similar behavior to contours on surfaces. This ...

We show that any q-query locally decodable code (LDC) gives a copy of `1 with small distortion in the Banach space of q-linear forms on `Np1×· · ·× ` N pq , provided 1/p1 + · · ·+1/pq ≤ 1 and where k, N , and the distortion are simple functions of the code parameters. We exhibit the copies of `1 by constructing a basis directly from “smooth” LDC decoders, thus bypassing a matching lemma often u...

Line drawings produced by contours traced on a surface can produce a vivid impression of the surface shape. The stability of this perception is notable considering that the information provided by the surface contours is quite ambiguous. We have studied the stability of line drawing perception from psychophysical and computational standpoints. For a given family of simple line drawings, human o...

A methodology for both accurate and smooth contour line generation from Light Detection 1 and Ranging (LiDAR) point clouds is proposed in this paper. In order to improve the accuracy of 2 contour lines in the area of forests, constrained triangulation networks with break lines are then 3 constructed to generate contour lines. In break line extraction, a bi-threshold method for edge line 4 detec...

With artificial intelligence technology being advanced by leaps and bounds, intelligent driving has attracted a huge amount of attention recently in research development. In driving, lane line detection is fundamental but challenging task particularly under complex road conditions. this paper, we propose simple yet appealing network called Ripple Lane Line Detection Network (RiLLD-Net), to expl...

We examine trade in services between employers from developed countries (DCs) and workers from less developed countries (LDCs) on an online platform for contract labor. We report evidence that 1) DC employers are less likely to hire LDC compared to DC workers even after controlling for a wide range of observables, 2) workers with standardized and verified work history information are more likel...

The Linguistic Data Consortium (LDC) is an open consortium of universities, companies and government research laboratories. It creates and distributes speech and text databases, lexicons and other resources. The University of Pennsylvania is the LDC’s host institution. The LDC was founded in 1992 with a grant from the Defense Advanced Research Projects Agency (DARPA). Currently, all LDC publica...

PURPOSE A laboratory investigation was undertaken to compare the in vivo antinociceptive effects of 2% liposomal formulations of prilocaine (PLC), lidocaine (LDC) and mepivacaine (MVC) compared to plain solutions of each of these three local anesthetics. METHODS Large unilamellar vesicles were prepared by extrusion (400 nm), at pH 7.4. The membrane/water partition coefficients were obtained f...