The use of in-stream wood is one the most commonly employed natural flood management (NFM) techniques. effectiveness NFM structures in reducing risks (i.e., their “primary” effect) has been relatively well documented. However, additional or “secondary” effects on other processes have not fully evaluated. These secondary can be inferred by reviewing previous studies that scrutinized accumulation...

This paper presents data compiled from aerial photography, General Land Office maps (GLOs), and discharge data from the central Platte River in Nebraska that quantify and provide a new understanding of channel evolution and abandonment in a braided stream. Analyses of aerial photographs and GLOs in ArcMapTM show that channel area decreased by an average of 46% from 1938 to 2006 and that channel...

Clinically, biofilm-associated infections commonly form on intravascular catheters and other hydrogel surfaces. For example, annually in the United States, biofilms formed on intravascular catheters are linked to 250,000 blood stream infections with an associated mortality rate of 1225%. To inactivate microbes, antibacterial agents have been released from polymer catheters. However, the overuse...

The attenuation of a plane acoustic wave incident on a flat impedance surface in a sheared and viscous fluid is investigated numerically and asymptotically. Predictions of various boundary models of impedance surfaces in shear flow are tested by comparing their predicted reflection coefficient. It is found that viscosity has a significant effect, reducing the reflection of upstream propagating ...

Control of ornithopters is challenging due to the unsteady flow generated by the flapping wings. The research presented in this paper is aimed at developing a sensor-based control methodology. Specifically, a distributed pressure sensing system embedded in the flapping wing surfaces is utilized to provide real-time aerodynamic force estimates to facilitate the development of feedback for an orn...

In this article, stream flow effectivness is based on hydraulic network studied in the shell-side of a shell and tube heat exchange as a case study. For an appropriate heat exchangers rating design to meet a specified duty, it's better to consider each stream flow separately. Using the hydraulic network principals, a set of the correlations for calculating different stream flow rates in the cro...

In this study we explore ways of using precomputed vector field topology as a guide for interactive feature-based visualization of flow simulation data. Beyond streamline seeding based on critical points, we focus mainly on computing special stream surfaces related to critical points and periodic orbits. We address the special case of divergence-free vector fields which is often met in practica...

The ModelCamera is a system for inside-looking-out modeling of static, room-size indoor scenes. The ModelCamera implements an interactive modeling pipeline based on real-time dense color and sparse depth. The operator scans the scene with a device that acquires a video stream augmented with 49 depth samples per frame. The system registers the frames using the depth and color data, and integrate...

Stationary and instationary Stokes and Navier-Stokes flows are considered on two-dimensional manifolds, i.e., on curved surfaces in three dimensions. The higherorder surface FEM is used for the approximation of the geometry, velocities, pressure, and Lagrange multiplier to enforce tangential velocities. Individual element orders are employed for these various fields. Stream-line upwind stabiliz...

We describe a computationally efficient scheme to perform model selection while simultaneously segmenting a short video stream into an unknown number of detachable objects. Detachable objects are regions of space bounded by surfaces that are surrounded by the medium other than for their region of support, and the region of support changes over time. These include humans walking, vehicles moving...