206 research outputs found

    Controlled Synchronization of One Class of Nonlinear Systems under Information Constraints

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    Output feedback controlled synchronization problems for a class of nonlinear unstable systems under information constraints imposed by limited capacity of the communication channel are analyzed. A binary time-varying coder-decoder scheme is described and a theoretical analysis for multi-dimensional master-slave systems represented in Lurie form (linear part plus nonlinearity depending only on measurable outputs) is provided. An output feedback control law is proposed based on the Passification Theorem. It is shown that the synchronization error exponentially tends to zero for sufficiantly high transmission rate (channel capacity). The results obtained for synchronization problem can be extended to tracking problems in a straightforward manner, if the reference signal is described by an {external} ({exogenious}) state space model. The results are applied to controlled synchronization of two chaotic Chua systems via a communication channel with limited capacity.Comment: 8 pages, 2 figure

    The use of nonsteroidal anti-inflammatory drugs for the treatment of facial pain in practice

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    Studies have shown that the drug ibuprofen is effective for the relief of pain in the facial area, allowing the continuation of dental treatment. Clinical experience has shown that 87% of patients were satisfied with the result of pain relief.Проведенные исследования показали, что препарат ибупрофен является эффектив-ными для купирования болевого синдрома в лицевой области, что позволяет дальнейшее проведение стоматологического лечения. Клинический опыт показал, что 87% пациентов были удовлетворены результатом снятия болевого синдрома

    INSPEX: Make environment perception available as a portable system

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    International audienceObstacle avoidance systems for autonomous vehicles combine multiple sensing technologies (i.e. LiDAR, Radar, Ultrasound and Visual) to detect different types of obstacles across the full range of lighting and weather conditions. Sensor data are fused with vehicle orientation (obtained for instance from an Inertial Measurement Unit and/or compass) and navigation subsystems. Power hungry, they require powerful computational capability, which limits their use to high-end vehicles and robots. 2 INSPEX ambition The H2020 INSPEX project plans to make obstacle detection capabilities available as a personal portable multi-sensors, miniaturised, low power device. This device will detect, locate and warn of obstacles under different environmental conditions, in indoor/outdoor environments, with static and mobile obstacles. Potential applications range from safer human navigation in reduced visibility conditions (e.g. for first responders and fire brigades), small robot/drone obstacle avoidance systems to navigation for the visually and mobility impaired people. As primary demonstrator (Fig.1), we will plug the INSPEX device on a white cane (see Fig. 1) for Visually Impaired and Blind (VIB) people to detect obstacle over the whole person height, provide audio feedback about harmful obstacles, improve their mobility confidence and reduce injuries, especially at waist and head levels [1]. The device will offer a "safety cocoon" to its user

    Modern microwave methods in solid state inorganic materials chemistry: from fundamentals to manufacturing

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    INSPEX: Make environment perception available as a portable system

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    Obstacle avoidance systems for autonomous vehicles combine multiple sensing technologies (i.e. LiDAR, Radar, Ultrasound and Visual) to detect different types of obstacles across the full range of lighting and weather conditions. Sensor data are fused with vehicle orientation (obtained for instance from an Inertial Measurement Unit and/or compass) and navigation subsystems. Power hungry, they require powerful computational capability, which limits their use to high-end vehicles and robots

    ПЕДІАТРИЧНА ОСВІТА УКРАЇНИ У ХХІ СТОРІЧЧІ: СУЧАСНІ ВИКЛИКИ ТА ПРОБЛЕМИ МАЙБУТНЬОГО

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    The aim of the work – to evaluate the state of development of pediatric education in Ukraine in the beginning of the 21st century, staffing of the branch in the field of pediatrics and to develop a plan of measures to overcome the crisis phenomena in pediatric health care. The main body. The article presents data on the development of pediatric education in the early 21st century after the restoration of the educational-scientific specialty “Pediatrics” in 2017. The development of up-to-date standards for the training of pediatric doctors, based on the acquisition of future master’s degrees in pediatrics, general and professional competencies and necessary practical skills is highlighted. The current problems in the provision of pediatric health care facilities are emphasized. Conclusion. A list of measures at the sectoral and national level has been developed to restore the necessary training рediatricians for childrenʼs health care of the country and to ensure the proper methodological provision of the educational process, which may cause difficulties in providing children with quality medical care in the future.Мета роботи – оцінити стан розвитку педіатричної освіти в Україні на початку ХХІ сторіччя, кадрове забезпечення галузі за спеціальністю «Педіатрія» та розробити план заходів щодо подолання кризових явищ у педіатричній охороні здоровʼя. Основна частина. У статті наведено дані щодо розвитку педіатричної освіти на початку ХХІ сторіччя після відновлення освітньо-наукової спеціальності «Педіатрія» у 2017 р. Висвітлено розробку сучасних стандартів підготовки дитячих лікарів, що базуються на набутті майбутніми магістрами педіатрії загальних та фахових компетенцій і необхідних практичних навичок. Наголошено на теперішніх проблемах у кадровому забезпеченні педіатричних закладів охорони здоровʼя, що може викликати складнощі у забезпеченні дітей якісною медичною допомогою у майбутньому. Висновок. Розроблений перелік заходів на галузевому та загальнодержавному рівні щодо відновлення необхідних для країни обсягів підготовки дитячих лікарів та забезпечення належного методичного забезпечення навчального процесу
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