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We consider a system where streaming and/or real time applications, using the UDP protocol pass through a bottleneck router. Several persistent and non persistent TCP connections may also be passing through that router. Using the rate control at the UDP sources and choosing the RED parameters appropriately, we obtain pre-specified delays, little delay(More)
Advanced Encryption Standard (AES), a Federal Information Processing Standard (FIPS), and categorized as Computer Security Standard. The AES algorithm is a block cipher that can encrypt and decrypt digital information. The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits. The Rijndael cipher has been selected as the official(More)
In this paper we develop a scheme which can help provide certain QoS via active measurement techniques. We send a probing stream, using the TCP or the UDP protocol, on a path with one bottleneck router. Several TCP and UDP connections (cross traffic) may be sharing the link on the router. We make measurements on the RTT and the throughput of the probing(More)
16B/20B code is particularly well suited for high-speed local area networks and similar data links, where the information format consists of packets, variable in length, from about a dozen up to a several hundred 16-bit bytes. This transmission code translates each source byte into a constrained 20-bit binary sequence, which has excellent performance(More)
We present a perfusion culture system with miniature bioreactors and peristaltic pumps. The bioreactors are designed for perfusion, live-cell imaging studies, easy incorporation of microfabricated scaffolds, and convenience of operation in standard cell culture techniques. By combining with miniature peristaltic pumps-one for each bioreactor to avoid(More)
The Method of Moment (MoM) approach is applied to estimate the error induced by two parallel dipoles used as probe on the plane of open-ended waveguide aperture. Reflection coefficient of feed waveguide is calculated by using coefficients of the basis function obtained from Method of Moment (MoM) analysis. Using the existing field at the waveguide aperture,(More)
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