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We propose a new way of analyzing biological pathways in which the analysis combines both transcriptome data and mutation information and uses the outcome to identify routes of aberrant pathways potentially responsible for the etiology of disease. Each pathway route is encoded as a Bayesian Network which is initialized with a sequence of conditional probabilities which are designed to encode directionality...
This paper develops a new signal control model in an optimal dynamic traffic assignment (DTA) framework to study the optimal signal settings and route choices, taking into account the transition between phases. The proposed model is convex and has a capability of predicting on-and-off traffic dynamic at intersections accurately. To the best of our knowledge, there have not been any previous work in...
The paper presents a study on the miniaturization of microwave power dividers/ combiners. The authors propose a modified two-way Wilkinson power divider with dimensions of 33×24mm, twice reduced compared to the standard structure (65×24mm). This new structure has been designed based on an "artificial transmission line" consisting of a microstrip line and two shunt capacitors at its edges...
The characterization of materials by rectangular waveguide method usually requires a sample holder and a complicated procedure of preparing specimen in order to limit the air gaps between the specimen and the boundaries of the waveguide that will affect the accuracy of measurement. In this paper, we present a technique of complex permittivity measurement with a simple MUT (Material Under Test) preparation...
In this work, we show that any potential function fulfilling certain thermodynamic stability criteria can be used as a storage function for the Port based modeling of the non isothermal Continuous Stirred Tank Reactor (CSTR) model using the Brayton-Moser formulation without any restriction on the chemical reaction kinetics. By means of an extended IDA-PBC (Interconnection and Damping Assignment-Passivity...
In IP-over-WDM networks, protection can be offered at the optical layer or at the electronic layer. While optical protection allows fast restoration in case of single link failures (due to, i.e., cable cuts), it does not offer recovery from IP layer failures (e.g., IP router failures). So both optical protection and IP restoration are needed, and requires coordination in order to avoid duplicated...
Providing protection in multi-domain optical networks involves ensuring protection for inter-domain connections. Due to scalability issues, almost all previous studies focused on heuristics for solving their protection models. In this study, we propose a large scale optimization ILP model, which allows the exact solution of quite large instances. The model relies on an hybrid protection scheme where...
Multi-layer optical networks have recently evolved towards IP-over-WDM networks. Therein, in order to avoid protection/restoration redundancies against either single or multiple failures, synergies need to be developed between IP and optical layers in order to reduce the costs and the energy consumption of the future IP-over-WDM networks. We propose two new optimization models. The first one is an...
We study the design of logical survivable topologies for service protection against single or multiple failures in IP-over-WDM networks where protection can be provided either at the optical layer, or at the network (IP) layer. Indeed, synergies need to be developed between IP and optical layers in order to optimize the resource utilization and to reduce the costs and the energy consumption of the...
A instrumentation channel has been designed, implemented and tested in a 0.5-mum SiGe BiCMOS process. The circuit features a reconfigurable Wheatstone bridge network that interfaces a range of external sensors to signal processing circuits. Also, analog sampling has been implemented in the channel using a flying capacitor configuration. Measurement results show the instrumentation channel supports...
In this paper, an improved particle filtering technique is presented to estimate channel coefficients and detect transmitted signals over fading channels. A common fading phenomenon known as flat Rayleigh fading is typically modeled as an autoregressive (AR) process. For non-Gaussian systems, the channel coefficients and transmitted symbols can be estimated using the particle filter (PF) technique...
The International Space Station (ISS) Payload Engineering Integration (PEI) organization has developed the critical capabilities in dynamic circuit modeling and simulation to analyze electrical system anomalies during testing and operation. This presentation provides an example of the processes, tools and analytical techniques applied to the improvement of science experiments over-voltage clamp circuit...
In most real-time applications, deadlines are artifices that need to be enforced to meet different performance requirements. For example, in periodic task sets, jitter requirements can be met by assigning suitable relative deadlines and guaranteeing the feasibility of the schedule. This paper presents a method (called minD) for calculating the minimum EDF-feasible deadline of a real-time task. More...
The electrical power distribution system for International Space Station (ISS) payloads is designed with the single-point-ground (SPG) at the power source. The system design requires the minimum isolation resistance of one mega-ohm between the power circuits and the chassis ground at electrical loads to prevent current from flowing in ground references. Under fault conditions, solid state devices...
This paper presents new results on designing a robust adaptive direct controller for a class of non-linear first order systems, based on the use of dead zone in parameters' update law. It is shown that size of the dead zone does not depend on upper bounds of disturbances. Computer simulation results show the effectiveness of the controller.
This paper presents an effective adaptive autopilot for ships, based on model reference adaptive system (MRAS) and self tuning regulator (STR) control theories. Simulation in various disturbance conditions shows that the autopilot has several notable advantages: high course turning speed, high accuracy of course keeping, low swing of ship bow, short time of rudder actions, small times of changing...
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