Recently as the incidences of terrorism and crime increase, the utilization of video surveillance system such as CCTV is increased. The increase of video surveillance system is useful in maintaining the safety of peop...
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The decision process for selecting the best-suited follow-up treatment for a suspected breast cancer case is strongly dependent upon the correct diagnosis and assessment of the breast cancer risk. Despite the latest t...
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The decision process for selecting the best-suited follow-up treatment for a suspected breast cancer case is strongly dependent upon the correct diagnosis and assessment of the breast cancer risk. Despite the latest technological developments, the methods and criteria used to quantify the characteristics of detected lesion, so as to define the developmental stage of the breast cancer, and thus to finally arrive at a reliable (most probable) risk estimate, are still subjective and poorly defined for many clinicians. The present paper introduces a set of fuzzy rules that can be used to process the relevant data from breast cancer cases in order to give a breast cancer risk prognosis which can be qualitatively compared to that of an expert.
The paper presents a new modeling framework enabling to evaluate the cyclic steady state of a given system of concurrently flowing cyclic processes (SCCP) on the base of the assumed topology of transportation routes, ...
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Abstract Grade changes in polyethylene reactors, i.e., changes of operating conditions, are performed on a regular basis to adapt to market demands. In this paper, a dynamic optimization procedure is presented built u...
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Abstract Grade changes in polyethylene reactors, i.e., changes of operating conditions, are performed on a regular basis to adapt to market demands. In this paper, a dynamic optimization procedure is presented built upon the Modelica language extended with Optimica constructs for formulation of optimization problems. A Modelica library for the Borstar® multistage polyethylene reactors at Borealis AB, consisting of two slurry and one gas phase reactor, has been constructed. Using http://*** , a framework to translate dynamic optimization problems to NLP problems, optimal grade transitions between grades currently used at Borealis AB, can be calculated. Optimal inflows and grade key variables are shown.
An exact knowledge of delay is crucial to control and synchronize a time-delayed system. In this paper, a least square based so-called Vector Fitting method is developed to identify parameters of a time-delayed system...
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This paper presents theoretical and experimental results of a newly developed automaticcontroller tuning algorithm called Robust Estimation for automaticcontroller Tuning (REACT) to tune a linear feedback controller...
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Abstract A fundamental quantity of the solution of an optimal control problem is the value function, i.e., the optimal cost-to-go function. In the general case, the function is not known exactly, but need to be approx...
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Abstract A fundamental quantity of the solution of an optimal control problem is the value function, i.e., the optimal cost-to-go function. In the general case, the function is not known exactly, but need to be approximated numerically. Most approaches to numerical approximation of the value function follow a procedure of three steps: first, the original continuous problem formulation is fully discretized; second, the discretized finite optimal control problem is solved by a shortest-path algorithm, and as third step, the solution is projected back from the finite space onto the continuous state space by using an interpolating function. This paper investigates the differences of discretization schemes and interpolating functions in this context. The performance of the computed approximations is evaluated in terms of an a-posteriori error, which is obtained from the approximating value functions. The convergence of the approximations to the true value function is proved for all considered schemes for the case that the discretization parameters are decreased to zero.
This paper presents the robust of Sliding Mode controller according to parameters change and worst signal noise. Mathematical procedure for calculating the values of the gains of Sliding Mode controller (SMC) and equa...
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To bridge the gap between insufficiency of existing proximity authentication solutions and the increasing demand of high security guarantee for access control systems, we develope a WISP-based access control system co...
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This paper presents a novel approach of using unmanned vehicles for Automated Meter Reading (AMR) applications in rural areas where there are a few consumers scattered around a wide area. The proposed system does not ...
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