ALGORITHM OF ADAPTIVE OUTPUT CONTROL OF LINEAR SYSTEM WITH IMPROVED PARAMETRIC CONVERGENCE

The problem of performance improvement of adaptive output control for linear time-invariant plant is addressed in the paper. The parameters of the plant are assumed to be unknown. A new method based on dynamical extension of regressive error model is proposed for design of the algorithms of controller parameters tuning. With a view of the proposed approach development the existing solutions to this problem are considered and analyzed. The first solution is based on gradient adaptation algorithm that drives control error to zero, however with arbitrary slow rate of convergence. The second solution uses identification algorithm of dynamical regressor extension. The algorithm has potentially high rate of convergence, however does not ensure decaying of control error. Thus, by modification of aforementioned solutions, namely, by dynamical extension of augmented error model and gradient adaptation algorithm the new algorithm is obtained. The algorithm permitsto increase the rate of the tuning of controller parameters arbitrary and drives control error to zero. The important property of the algorithm is that it does not require parameters identification neither of plant nor of its parameterized representation. This property relaxes the dependence of the control algorithms from persistent excitation condition, that is, the key identifiability condition. The proposed solution is verified in MatLab/Simulink environment by comparison with solution based on the gradient adaptation algorithm

Metallo-Supramolecular Coordination Polymers Based on Amidopyridine Derivatives of Pillar[5]arene and Cu(II) and Pd(II) Cations: Synthesis and Recognition of Nitroaromatic Compounds

Decasubstituted pillar[5]arenes containing amidopyridine fragments have been synthesized for the first time. As was shown by UV-vis spectroscopy, the pillar[5]arenes with p-amidopyridine fragments form supramolecular associates with Cu(II) and Pd(II) cations in methanol in a 2:1 ratio. Using a sol-gel approach these associates are transformed into metallo-supramolecular coordination polymers (supramolecular gels) which were characterized as amorphous powders by scanning electron microscopy (SEM) and dynamic light scattering (DLS). The powders are able to selectively adsorb up to 46% of nitrophenols from water and were incorporated into an electrochemical sensor to selectively recognize them in aqueous acidic solution

Increase of battle readiness of zenithal rocket troops by optimum purchase of stuff wares of zenithal rocket complexes

В статті показано, що для підтримання працездатного стану озброєння та військової техніки зенітних ракетних військ необхідно провести закупівлю НВЧ приладів. В умовах фінансових обмежень провести повну заміну несправних НВЧ приладів не можливо, тому пропонується цю проблему вирішувати поступово, забезпечуючи необхідний (потрібний) рівень боєготовності озброєння. Обґрунтовано фактори, які впливають на проведення закупівлі НВЧ приладів. Розроблена методика визначення оптимальної номенклатури та кількості НВЧ приладів, що можуть бути закуплені за наявні кошти, яка базується на врахуванні показників боєготовності озброєння та військової техніки зенітних ракетних військ.В статье показано, что для поддержания работоспособного состояния вооружения и военной техники зенитных ракетных войск необходимо провести закупку СВЧ приборов. В условиях финансовых ограничений провести полную замену неисправных СВЧ приборов нет возможности, потому предлагается эту проблему решать постепенно, обеспечивая необходимый (требуемый) уровень боеготовности вооружения. Обоснованы факторы, которые влияют на проведение закупки СВЧ приборов. Разработана методика определения оптимальной номенклатуры и количества СВЧ приборов, которые могут быть приобретены за имеющиеся средства, которая базируется на учете показателей боеготовности вооружения и военной техники зенитных ракетных войск.It is rotined in the article, that for maintenance of the capable of working state of armament and military technique of zenithal rocket troops it is necessary to conduct the purchase of Devices Over High-frequencies (OHF of devices). In the conditions of financial limitations to conduct complete replacement of the defective OHF devices there is not possibility, that is why it is suggested to decide this problem gradually, providing the necessary (required) level of battle readiness of armament. Factors which influence on the purchase of OHF of devices are grounded. The method of determination of optimum nomenclature and amount of OHF of devices which can be purchased for present facilities is developed, which is based on the account of indexes of battle readiness of armament and military technique of zenithal rocket troops