Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 58 for “"Equilibrium Points"”.
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ΣΥΜΒΟΛΗ ΣΤΗΝ ΜΕΛΕΤΗ ΤΟΥ ΦΩΤΟΒΑΡΥΤΙΚΟΥ ΠΕΡΙΟΡΙΣΜΕΝΟΥ ΠΡΟΒΛΗΜΑΤΟΣ ΤΩΝ ΤΡΙΩΝ ΣΩΜΑΤΩΝ
… EXISTENCE,LOCATION AND LINEAR STABILITY OF THE EQUILIBRIUM POINTS OF THE PROBLEM IS STUDIED. IN THE THIRD CHAPTER THE EVOLUTION OF THE AREAS WHERE THE THIRD BODY IS ABLE TO MOVE ACCORDING TO THE VALUE OF THE INTEGRAL OF MOTION, WHEN ONLY ONE OF THE MAIN BODIES RADIATES. IN THE FOURTH CHAPTER THE …
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Mathematical modeling of foot and mouth disease (FMD) in Cattle and Buffaloes using vaccination and culling: A Namibia perspective
… of model solutions, as well as the stability of equilibrium points and to ensure that the mathematical solutions were biologically reasonable. Important threshold parameters such as the reproduction numbers were established, which are critical indicators of disease spread. Results from the study …
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Optimal adaptive control with ΘLQG
… parameterized dynamic model with operation about equilibrium points. Its general construction can also be used in disturbance rejection, gain scheduling and reference tracking. Specific case examples are introduced.
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Analysis and design of microprocessor-controlled peak-power-tracking system
… Small-signal stability analysis around the equilibrium points is done to assure proper performance and operation of this particular peak-power tracking system. Specific design details and procedures are discussed, and predictions from the analyses are verified through hardware.
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Mathematical modeling of an epidemic under vaccination in two interacting populations
… Then we present the stability analysis of equilibrium points and the effect of vaccination. Our primary finding is that the behaviour of the disease free equilibrium depend on the vaccination rates of the combined population. We show that the disease free equilibrium is locally …
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ΙΣΗΜΕΡΙΝΕΣ ΚΙΝΗΣΕΙΣ ΦΟΡΤΙΣΜΕΝΩΝ ΣΩΜΑΤΙΔΙΩΝ ΣΕ ΑΠΟΜΟΝΩΜΕΝΑ ΜΑΓΝΗΤΙΚΑ ΖΕΥΓΗ ΥΛΙΚΩΝ ΣΩΜΑΤΩΝ
… CONTOURS. THESE CONTOURS REVEAL A NUMBER OF EQUILIBRIUM POINTS ON EACH EQUATORIAL PLANE, THE STABILITY OF WHICH IS STUDIED BY MEANS OF THE CHARACTERISTIC EXPONENTS. NEXT, SOME CLASSICAL NUMERICAL TECHNIQUES ARE APPLIED TO FIND FAMILIES OF SYMMETRIC PERIODIC ORBITS. THE STABILITY FOR EACH …
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Nonlinear PID controller
… of the nonlinear plant about selected equilibrium points. Simulations are performed on two different nonlinear CSTR models. The first simulation produced an unexpected result: that linear output feedback performed better than state feedback for the particular model. The second …
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C.A.R.S. temperature measurements and chemical kinetic modelling of autoignition in a methanol-fuelled internal combustion engine
… obtained, although the calculated autoignition points occur slightly earlier than the observed point. A sensitivity analysis of the methanol autoignition system is undertaken, and the importance of the decomposition of hydrogen peroxide and the hydroperoxyl chemistry is demonstrated. The …
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Exploring the cosmological dynamics of a viable theory for ƒ(R)-gravity
… model is extracted. Several stable de Sitter equilibrium points are identified, as well as an unstable "matter-like" point and solution orbits which resemble the ACDM evolution are presented. The expansion history produced by integration of the dynamical system of the HS model is compared with …
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Dynamical equilibrium and stability of a D-T fueled fusion reactor
… to remove ions, alpha particles, and impurities. Equilibrium point solutions and fractional burn-ups were obtained after simulating different operating regimes of a D-T fueled fusion reactor. This was done essentially by varying a temperature dependent confinement time. The source density remained …
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On some optimal control problems on networks, stratied domains, and controllability of motion in fluids.
… the convergence both to local and to global equilibrium points. Furthermore, we study the stability of the system also in the presence of a delay which we model using an hysteresis operator. As a result of the hysteresis, we prove existence of multiple equilibrium points and analyze …
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REAL-TIME CLASSIFIER BASED ON ADAPTIVE COMPETITIVE SELF-ORGANIZING ALGORITHM
… input pattern will finalize in a set of isolated equilibrium points. The stability of those equilibrium points is investigated. Valleys on the surface are the representation of clusters, and they are defined with their parameters such as depth, width and vigilance parameter. These control …
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On Equilibria and Feasibility of Ecological Polynomial Dynamical Systems
… in ecological models based on the number of free-equilibrium points that can emerge in a system (i.e., equilibria that can be feasible or unfeasible as a function of model parameters). We characterize complexity by the number of free-equilibrium points generated by a model, which is a function of …
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Análise de estabilidade em dinâmica industrial
… chapters consider search and determination of equilibrium points, analysis of sensitivity of these points with respect to changes of the system parameters, and the approach taken for the solution of the problem of determination of the domain of asymptotic stability. A specific example is …
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Design of a Shape Memory Alloy Coil Actuated Robotic Finger with Compliant Joint Antagonists
… the actuator and structure are used to predict equilibrium points between the two hysteresis curves. The final assembly with an SMA coil actuating the compliant mechanism is tested, and the experimental results show the actuation stroke and bias distance match the predictions from the hysteresis …
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Tuberkuliozės matematinis modelis su netiesine gydymo funkcija /
… be poor. The local and global stability of the equilibrium points determine the dynamics of the proposed models. Conditions for the global stability of the disease free equilibrium are given. It plays an important role in determining if an infection can be eradicated. The basic reproduction …
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Sir epidemic and predator - prey models of fractional-order
… the Caputo derivative. Stability analysis of the equilibrium points of the models for the fractional models were analyzed. Furthermore, the Hopf bifurcation analysis of each model was investigated . The result obtained showed that the model undergo Hopf bifurcation for some values. Throughout the …
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AC-RL: A Framework for Real-Time Control, Learning & Adaptation
… and employs extensions to systems with multiple equilibrium points, systems with input magnitude constraints, and systems in which a high-order tuner is required for adequate performance. In addition to establishing a stability guarantee with realtime control, the AC-RL controller is also shown …
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Incorporating global information into local nonlinear controllers
For a particular equilibrium point, the local performance is determined by the partial derivatives of the control law evaluated at the equilibrium point. For a linear controller, the derivatives are equal to the state-feedback gains and the gains on the external inputs. These gains can be changed …
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Real root counting for parametric polynomial systems and applications.
… an upper bound of the number of non-degenerate equilibrium points of the electric potential created by point charges. In the case of 3 point charges, he conjectured that there are at most 4 such equilibrium points. After given proper coordinates, the problem also becomes to count positive zeros …
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