This study investigates the impact of an interactive television public-service announcement (PSA) containing an anti-speeding threat appeal on feelings of telepresence and behavioral intention. In a 2 × 2 × 2 between-subjects factorial design with 213 participants, the level of threat evoked by a traditional PSA, by the interactive part of the PSA (dedicated advertising location or DAL) and by ...

Research has shown that impervious surfaces, a consequence of development, have a direct impact upon stream quality. Local planners and land-use officials need simple tools to help them determine the amount of impervious surface within watersheds and to assess impacts from future development. This paper describes an ArcView GISbased model being developed by the Northeast Regional Earth Science ...

background: bromide is found naturally in groundwater and surface water. the rapid growth of industrial activities, drainage of surface runoff, and use of methyl bromide in pesticides has increased bromide discharge to the environment. disinfection of water-containing bromide causes the creation of additional products of organo-halogenated that are considered cancer-causing agents. in this stud...

This paper presents novel interaction modes for Model-Based Sonification (MBS) via interactive surfaces. We first discuss possible interactions for MBS on a multi-touch surface. This is followed by a description of the Data Sonogram Sonification and the Growing Neural Gas Sonification Model and their implementation for the multi-touch interface. Modifications from the original sonification mode...

In this paper we introduce a direct manipulation framework to model surface splines Pe-ters, 1993]. The framework presents the designer with intuitive tools to control the surface , however, the designer does not have to know any details of how the surface is represented. The surface spline is a parametric representation that permits us to model objects of arbitrary topology. The representation...

This paper presents a new combinatorial algorithm for surface reconstruction. It is an interactive and incremental algorithm based on a deenition of the strength of a Delaunay triangle. Local topology of a 2D manifold is enforced while Delaunay triangles are inserted into the partially reconstructed surface in the decreasing order of their strength.

In this study chemical method of dissolution-Precipitation was applied to produce amorphous silica nanoparticles from rice straw ash (RSA), the waste material of rice cultivation. The morphology, particle size, structure and area of specific surface of synthesized amorphous silica nanoparticles were evaluated using transmission electron microscopy (TEM), X-ray diffraction analysis (XRD) and BET...

Curved beams along freeform skins pose many challenges, not least on the level of basic geometry. A prototypical instance of this is presented by the glass facades of the Eiffel tower pavilions, and the interrelation between the differential-geometric properties of the glass surface on the one hand, and the layout of beams on the other hand. This paper discusses how curved beams are represented...

A linearized approximation to the semiclassical initial value representation ~SC-IVR!, referred to herein as the LSC-IVR, was used by us in a recent paper @J. Chem. Phys. 108, 9726 ~1998!# to calculate reactive flux correlation functions for a model of a chemical reaction on a single potential energy surface. This paper shows how the LSC-IVR—which is much easier to apply than the full SC-IVR be...