5 Many practical methods and different approaches have been proposed to assess Multi-State Systems (MSS) 6 reliability measures. The universal generating function (UGF) method, introduced in 1986, is known to be a very 7 efficient way of evaluating the availability of different types of MSSs. In this paper, we propose an extension 8 of the UGF method considering epistemic uncertainties. This ex...

Although therapy switch is common among patients with multiple sclerosis (MS), sometimes the initial prescribed treatment is maintained for a long period with clinical stability, low disability, and nonsignificant side effects. We aim to describe demographic and clinical characteristics of patients treated in our MS clinic with the same disease-modifying drug (DMD) lasting for >12 years. From t...

In this paper, we present two fault-tolerant protocols for mobile computing systems; a causal message logging protocol and a receiver-based pessimistic message logging protocol for tolerating failures of mobile hosts (MHs) and mobile support stations (MSSs) respectively. The systems raise several constraints such as limited life of battery power, mobility and disconnection of hosts and lack of ...

E-tickets issued online can be used by different vendors to provide services such as discount coupons for E-shopping, or an entrance for a football game. One major issue associated with E-tickets is the problem of validation, which becomes more severe in a mobile environment due to mobility of a mobile host (MH) and frequent failure/disconnection of validation servers known as mobile support st...

In this paper, analysis of k-out-of-n Multi-State Systems (MSSs) is considered. This type of systems consists of n components, and it can be in state j if and only if at least k components are in state j or greater. Investigation of such systems has been considered in several works. However, most of them have dealt only with an efficient computation of several global characteristics, such as sy...

If weakly interacting massive.particles (WIMPS) are the dark matter in the galactic halo, they may be detected in low background ionization detectors now operating or with low temperature devices under development. In detecting WIMPS of low msss or WIMPS with spin-dependent nuclear interactions (e.g., photinos), a principal technical difficulty appears to be achieving very low thresholds (5 O(k...

Service delivery in a heterogeneous wireless network environment requires the selection of an optimal access network. Selection of a least favorable network can result in insufferable effects such as higher costs or poor service experience. Subsequently, network selection techniques play a vital role in ensuring Quality of Service (QoS) in heterogeneous networks. Network selection in such an en...

3D mapping is one of the most significant abilities for Autonomous Underwater Vehicles (AUV). This paper proposes a 3D mapping algorithm for a robotic fish using two Mechanical Scanning Sonars (MSSs) with one being forward-looking and the other downward-looking. Combined with Inertial Measurement Unit (IMU), the forward-looking MSS is used for 2D SLAM (Simultaneous Localization and Mapping) by ...