We describe an methodology for testing a software system for possible security flaws. Based on the observation that most security flaws are caused by the program’s inappropriate interactions with the environment, and triggered by user’s malicious perturbation on the environment (which we call an environment fault), we view the security testing problem as the problem of testing for the fault-tol...

OBJECTIVE To compare associations of alcohol, cannabis, and cocaine abuse and traffic crash risk for "at fault" crashes and all crashes. DESIGN A historical cohort study. SETTING Toronto, Ontario. Patients or subjects: Subjects beginning treatment at the Centre for Addictions and Mental Health (CAMH) in 1994 for abuse of alcohol, cannabis, cocaine, and all combinations of these substances (...

extension of inter-turn fault in windings of pmsm can damage all parts of electrical systems, and in some cases in sensitive applications may lead to irreparable events. identification of such small faults at incipient steps can be so helpful to protect entire part of electrical system. in this paper, intelligent protection system is designed which is made by two major parts. in the first part ...

the sangbast-shandiz fault zone, with a length of about 57 km, a width of moderately 2 km, and a nw-se direction, is located about 15 km in the west of mashhad city. that is one of the major faults in the binalud mountains. geomorphic evidences illustrate that the sangbast-shandiz fault zone has dextral strike- slip offsets with thrust activity. in this article, we investigated geomorphic featu...

This paper presents a way to command a system of systems robustly as a single entity. Instead of modeling each component system in isolation and then manually crafting interaction protocols, this approach starts with a model of the collective population as a single system. By compiling the model into separate elements for each component system and utilizing a teamwork model for coordination, it...

This paper researches if added functionality can lead to better seamless interaction between different devices. The purpose is to find out how different devices can work together seamlessly. This is a problem we are trying to solve. Two designs have been set up for user testing. One design has shared bookmarks to stimulate seamless interaction whereas the other does not have this. By means of a...

an attempt has been made to explore the general trends in the seismic response of planasymmetric structures when subjected to near-fault and far-fault ground motions. systems with structural wall elements in both orthogonal directions considering actual and common nonlinear behavior under bi-directional excitation were studied. idealized single-storey models with uni-axial eccentricity were emp...

Software maintenance is an important and costly activity of the software development lifecycle. To ensure proper maintenance the software undergoes regression testing. It is very inefficient to re execute every test case in regression testing for small changes. Hence test case prioritization is a technique to schedule the test case in an order that maximizes some objective function. A variety o...

Quantum computation is a recently-introduced and novel computing technique which is based on quantum mechanics rather than classical physics. Its starting point is the notion of a quantum bit or “qubit”. Because of the superposition property of quantum states, n qubits can store 2 n numbers simultaneously, implying a type of massive parallelism. Furthermore, quantum states allow powerful forms ...