1. Introduction Leaky-wave antennas based on an open-waveguide structure can become a candidate of millimeter-wave antennas. Since such a structure is already open, leakage is produced by introducing not a physical cut, but asymmetry of the structure. As a result, it supports a leaky mode (instead of a bound mode) and therefore radiates all along its length, possess flexibility in beamwidth and...

Developer testing (also called unit testing) can help ensure the development of high-quality cloud applications. However, unit testing normally can’t take into account all possible inputs because the input space is too large or even infinite. So, developers need criteria to decide which test inputs to use and when to stop testing. Effective use of criteria such as structural-code coverage can h...

A novel single-radiator card-type tag is proposed which is constructed using a series Hilbert-curve loop and matched stub for high frequency (HF)/ultra high frequency (UHF) dual-band radio frequency identification (RFID) positioning applications. This is achieved by merging the series Hilbert-curve for implementing the HF coil antenna, and square loop structure for implementing the UHF antenna ...

When the total current in CESR was raised to about 300 ma a longitudinal instability threshold occurred which prevents a signi cant increase in the current. Experiments on CESR indicate that the main cause for the longitudinal instability is the H.O.M. in the cavities [1]. It has also been shown that by changing the cavities temperature the longitudinal instability threshold can be slightly rai...

Title of dissertation: DETECTING DDoS ATTACKS IN STUB DOMAINS Christopher Kommareddy, Doctor of Philosophy, 2006 Dissertation directed by: Prof. Samrat Bhattacharjee Department of Computer Science Dr. Richard La Department of Electrical & Computer Engineering DoS attacks have least impact when detected and mitigated close to the attacks’ source. This is more important for Distributed DoS (DDoS)...

Real-world data networks are large, making them difficult to analyze. Thus, analysts often generate network models of a more tractable scale to perform simulations and analyses, but even these models need to be fairly large. Because these networks do not directly correspond to any particular network, it is often difficult for the user to construct a mental model of the network. We present a net...

A rich and very dynamic Content distribution ecosystem enables today’s Internet users to access content associated with major providers from a close-by front-end server. While the advantages of the resulting locality of traffic for users (i.e. better performance) and providers (i.e. lower cost) are well understood, two basic questions about the content distribution ecosystem remained unanswered...

This paper describes the implementation of a Stub Generation system targeted specifically at C++. It enables distributed C++ applications to be constructed in a straightforward manner with minimal programmer assistance. The system does not require the use of an auxiliary interface definition language but instead processes existing C++ header files to maximise transparency. The generated code ex...