The Clean Water Act mandates that the chemical, physical, and biological integrity of our nation's waters be maintained and restored. Physical integrity has often been defined as physical habitat integrity, and as such, data collected during biological monitoring programs focus primarily on habitat quality. However, we argue that channel stability is a more appropriate measure of physical integ...

This work studies the possibility of using the encrypted video channel of widely used video-conferencing applications, such as Skype, as a carrier for an unobservable covert channel that can be used to access arbitrary information on the Internet. Such channel can be used by citizens living in countries ruled by repressive regimes to exert their civil rights without being detected and/or blocke...

smartphones has become increasingly important as smartphones have recently replaced the role of traditional computers. Smartphones are subject to traditional computer network covert channel techniques. Smartphones also introduce new sets of covert channel techniques as they add more capabilities and multiple network connections. This work presents a new network covert channel in smartphones. Th...

There is an upper bound to the amount of power that can be generated by turbines in tidal channels as too many turbines merely block the flow. One condition for achievement of the upper bound is that the turbines are deployed uniformly across the channel, with all the flow through them, but this may interfere with other uses of the channel. An isolated turbine is more effective in a channel tha...

A single distributed application typically requires setting up a number of real-time connections, or channels. Current schemes usually assume that different channels are independent, when in reality, important relationships often exist between them. We introduce a new abstraction called channel groups that allows network clients to describe these relationships explicitly to the network service ...

We model the decoded picture quality at the output of a Systematic Lossy Error Protection (SLEP) scheme for error-resilient transmission of H.264/AVC compressed video signals. In this scheme, a video signal transmitted without channel coding constitutes the systematic portion of the transmission. Errorresilience is provided by transmitting a supplementary bit stream generated by Wyner-Ziv encod...

In this paper we propose a low-complexity errorresilient and joint source-channel video coding algorithms for video codec based on three-dimensional discrete wavelet transform (3-D DWT). First, we show that the video stream, generated by 3-D DWT codec with the proposed error-resilient, is significantly more robust to packet losses than video stream generated by scalable extension of the H.264/A...

This paper proposes and analyzes the performance of a robust real-time message scheduling scheme capable of handling channel errors by exploiting an auxiliary schedule on the IEEE 802.11 WLAN.While the primary schedule is derived from the legacy EDF (Earliest Deadline First) scheme, the auxiliary schedule is generated based on the slack and arrival times of each message stream. During runtime, ...

This study assesses the characteristics of perennial streams using dimensionless relationship between streamflow exceedance probability and wet channel ratio based on a network extracted from light detection ranging (LiDAR) data. LiDAR provides topographic data signals’ intensity in high-resolution with high accuracy to provide useful information for drainage networks extraction. In this study,...