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Proceedings of the Karelian Research Centre of the Russian Academy of Sciences
Proceedings of the Karelian Research Centre of the Russian Academy of Sciences
Цель работы – разработка и реализация алгоритмов работы роботизированной системы калибровки камер... more Цель работы – разработка и реализация алгоритмов работы роботизированной системы калибровки камер. Выявлена необходимость в построении системы калибровки камер. В данной работе произведен аналитический обзор литературы на тему калибровки камер и управлении роботами посредством ROS. Сформулированы основные принципы подобной системы и реализована компьютерная модель системы.
В статье представлены результаты отбора геолого-физических и технологических показателей эксплуат... more В статье представлены результаты отбора геолого-физических и технологических показателей эксплуатации нефтяных скважин в регрессионную модель оценки эффективности их работы. Рассмотрены методы прямого, обратного отбора переменных и метод на основе случайного леса. Выявлены достоинства и недостатки применения методов отбора в исследуемой предметной области, проведен сравнительный анализ на основе оценки точности моделей от количества учитываемых показателей. Подтверждена адекватность полученных регрессионных моделей.
Рассмотрена задача определения мгновенных значений параметров электрического режима с целью иссле... more Рассмотрена задача определения мгновенных значений параметров электрического режима с целью исследования динамических процессов в нелинейных системах. Показано, что существующие методики вычисления параметров, обеспечивающие дискретность выходных данных, равную периоду промышленной частоты, не позволяют оценить значение параметра в произвольный момент времени с высокой точностью. Предложен метод определения мгновенных значений параметров электрического режима, основанный на модифицированном преобразовании Гильберта. Приведён пример определения частоты, амплитуды и фазы тока при коротком замыкании. Результаты исследования позволяют изучать явления, происходящие "внутри" периода тока промышленной частоты, а также более точно определять динамические характеристики энергосистем.
FIELD: power industry. SUBSTANCE: steam-gas installation of two-circuit nuclear power plant conta... more FIELD: power industry. SUBSTANCE: steam-gas installation of two-circuit nuclear power plant contains a reactor 12, main steam generator 11, steam turbine with HP cylinders 1 and LP cylinders 2 connected with each other by steam line with installed separator-superheater 3, a condenser 4, electric generators 5, condensate 6 and feed 8 pumps, LP heater 7 and HP heater 9, gas turbine 15 with waste heat steam generator 17 connected at heating side to exhaust gases 16 of has turbine 15. The waste heat steam generator 17 with heating steam line 20 is connected at the heating side to main condensate bleeding pipeline 19, at that the additional heating of the feed water is performed in the steam-water heater by the intermediate steam heating medium generated in the waste heat steam generator 17 of the gas turbine 15. EFFECT: exclusion of hydraulic and thermal losses of water and gas channels, and control inertia of steam turbine load, increasing of effective heat use of exhaust gases and gas...
FIELD: power engineering. SUBSTANCE: steam-gas plant based on a moist steam NPP comprises a steam... more FIELD: power engineering. SUBSTANCE: steam-gas plant based on a moist steam NPP comprises a steam turbine with high and low pressure cylinders connected to each other by a steam line with a separator and a live steam reheater, having pipelines of heating steam condensate, a gas turbine with a combustion chamber and a compressor, a waste heat steam generator. The waste heat steam generator is connected along the heated side to the pipelines of heating steam condensate of the live steam reheater, along the heating line - to the tract of spent gases of the gas turbine 11. Besides, the pipelines of heating steam are connected to outlets of the waste heat steam generator, at the same time the intermediate reheating of the main flow of steam is realised in the system of steam-steam reheating of the steam turbine by the intermediate steam coolant, generated in the waste heat steam generator of the gas turbine. EFFECT: invention makes it possible to eliminate significant hydraulic and therm...
FIELD: chemistry. SUBSTANCE: invention relates to novel crystalline forms of tiotropium bromide, ... more FIELD: chemistry. SUBSTANCE: invention relates to novel crystalline forms of tiotropium bromide, characterised by X-ray powder diffraction pattern XRD, having peaks at approximately 20.2, 26.5, 28.0 and 31.2±0.2 degrees 2-theta and at approximately 20.9, 21.1, 21.4 and 34.43±0.2 degrees 2-theta. The invention also relates to methods of producing said forms and pharmaceutical compositions having anticholinergic activity, based on said compounds. EFFECT: novel more stable forms of tiotropium bromide which can be used in medicine to treat asthma or chronic obstructive pulmonary disease are obtained. 22 cl, 16 dwg, 21 ex
В статье рассматривается история научных поисков венгерского ученого Берната Мункачи, начиная с с... more В статье рассматривается история научных поисков венгерского ученого Берната Мункачи, начиная с самых ранних его экспедиций. Первая научная поездка Мункачи и И. Куноша состоялась летом 1880 г. к венграм, говорящим на чангошском диалекте в Молдове. Маршрут экспедиции к удмуртам вел Мункачи от г. Сарапула через с. Люк в Мултан, Зуру, Балезино к глазовским удмуртам. Побывав в удмуртских деревнях на башкирских землях, он старался максимально широко охватить этнический и языковой ареалы удмуртов. Завершающим этапом его трехмесячного путешествия стала работа среди елабужских удмуртов. В марте 1888 г. Б. Мункачи отправился в длительную экспедицию в Западную Сибирь к обским уграм. Отдельное место в статье занимает анализ антропологических и этнографических исследований, проведенных австро-венгерскими и немецкими учеными в годы Первой мировой войны. Основу исследований составили записи фольклорно-лингвистических материалов от пленных информантов в 1915-1917 гг., проводившиеся с использование...
FIELD: physics. SUBSTANCE: short light pulses are emitted into an inhomogeneous atmosphere and ec... more FIELD: physics. SUBSTANCE: short light pulses are emitted into an inhomogeneous atmosphere and echo signals are received. The echo signals are corrected for the lidar geometric factor. The corrected signals are accumulated during a given period of time depending on the overall length of the investigated area. The light pulses are deflected in at least two points of the probing path in directions towards a common scattering volume. Optical thickness of the area enclosed between points where the pulses are deflected is taken into account in order to determine transparency of the atmosphere. EFFECT: high accuracy of determination due to correct accounting for influencing factors. 1 dwg
FIELD: machine building. SUBSTANCE: group of inventions relates to automotive industry. Automotiv... more FIELD: machine building. SUBSTANCE: group of inventions relates to automotive industry. Automotive rotary device comprises a rotary body and an attached to it central housing connected with onboard bodies made with the possibility of propulsors mounting on them. Rotary body is equipped with a support-rotating wheel consisting of a fixed and a movable rings with running paths contacting with rolling bodies arranged there between. On the rotary body or on the movable ring of the support-rotating wheel there are bearing cylinders. Dump truck comprises mounted on the frame an engine compartment, a cabin, a cargo platform and installed under the frame two bridges with propulsors equipped with the said automotive rotary devices and a steering system. EFFECT: provided is simplified design of the rotary device and improved controllability of the dump truck. 6 cl, 6 dwg
FIELD: mining. SUBSTANCE: method comprises mechanical destruction of seafloor layer by an strippi... more FIELD: mining. SUBSTANCE: method comprises mechanical destruction of seafloor layer by an stripping knife moving along the seafloor, and transportation of destruction products to the surface. The products of destruction are placed in elastic, gas-tight shells, which are collected along the surface and transported them to the place of use in the transportation vessel refrigerators. The combine is a moving platform with a knife for seafloor cleaning with the mounted video camera and the stripping knife under the hole in the platform designed as a horizontally rotating cylinder with the scrapers mounted on it. The platform has two mounted cylinders, the first is a container with shells located horizontally one above another one, and the second one, mounted above the hole, is a loading container in the top side of which the segments with drive mechanisms shifting them from the cylinder axis are located. EFFECT: improvement of efficiency of ocean production of gas hydrates. 4 cl, 2 dwg
Вестник Науки Сибири, Jan 3, 2014
Успехи математических наук, 2004
Computer Optics, 2015
A two-fold way to increase the sensitivity of the optical sensor is proposed and numerically inve... more A two-fold way to increase the sensitivity of the optical sensor is proposed and numerically investigated. The sensor based on the coupled photonic crystal cavities is calculated as an illustration of the proposed approach. The correspondence between analytical and numerical modeling approach is demonstrated.
Proceedings of the Karelian Research Centre of the Russian Academy of Sciences
Proceedings of the Karelian Research Centre of the Russian Academy of Sciences
Цель работы – разработка и реализация алгоритмов работы роботизированной системы калибровки камер... more Цель работы – разработка и реализация алгоритмов работы роботизированной системы калибровки камер. Выявлена необходимость в построении системы калибровки камер. В данной работе произведен аналитический обзор литературы на тему калибровки камер и управлении роботами посредством ROS. Сформулированы основные принципы подобной системы и реализована компьютерная модель системы.
В статье представлены результаты отбора геолого-физических и технологических показателей эксплуат... more В статье представлены результаты отбора геолого-физических и технологических показателей эксплуатации нефтяных скважин в регрессионную модель оценки эффективности их работы. Рассмотрены методы прямого, обратного отбора переменных и метод на основе случайного леса. Выявлены достоинства и недостатки применения методов отбора в исследуемой предметной области, проведен сравнительный анализ на основе оценки точности моделей от количества учитываемых показателей. Подтверждена адекватность полученных регрессионных моделей.
Рассмотрена задача определения мгновенных значений параметров электрического режима с целью иссле... more Рассмотрена задача определения мгновенных значений параметров электрического режима с целью исследования динамических процессов в нелинейных системах. Показано, что существующие методики вычисления параметров, обеспечивающие дискретность выходных данных, равную периоду промышленной частоты, не позволяют оценить значение параметра в произвольный момент времени с высокой точностью. Предложен метод определения мгновенных значений параметров электрического режима, основанный на модифицированном преобразовании Гильберта. Приведён пример определения частоты, амплитуды и фазы тока при коротком замыкании. Результаты исследования позволяют изучать явления, происходящие "внутри" периода тока промышленной частоты, а также более точно определять динамические характеристики энергосистем.
FIELD: power industry. SUBSTANCE: steam-gas installation of two-circuit nuclear power plant conta... more FIELD: power industry. SUBSTANCE: steam-gas installation of two-circuit nuclear power plant contains a reactor 12, main steam generator 11, steam turbine with HP cylinders 1 and LP cylinders 2 connected with each other by steam line with installed separator-superheater 3, a condenser 4, electric generators 5, condensate 6 and feed 8 pumps, LP heater 7 and HP heater 9, gas turbine 15 with waste heat steam generator 17 connected at heating side to exhaust gases 16 of has turbine 15. The waste heat steam generator 17 with heating steam line 20 is connected at the heating side to main condensate bleeding pipeline 19, at that the additional heating of the feed water is performed in the steam-water heater by the intermediate steam heating medium generated in the waste heat steam generator 17 of the gas turbine 15. EFFECT: exclusion of hydraulic and thermal losses of water and gas channels, and control inertia of steam turbine load, increasing of effective heat use of exhaust gases and gas...
FIELD: power engineering. SUBSTANCE: steam-gas plant based on a moist steam NPP comprises a steam... more FIELD: power engineering. SUBSTANCE: steam-gas plant based on a moist steam NPP comprises a steam turbine with high and low pressure cylinders connected to each other by a steam line with a separator and a live steam reheater, having pipelines of heating steam condensate, a gas turbine with a combustion chamber and a compressor, a waste heat steam generator. The waste heat steam generator is connected along the heated side to the pipelines of heating steam condensate of the live steam reheater, along the heating line - to the tract of spent gases of the gas turbine 11. Besides, the pipelines of heating steam are connected to outlets of the waste heat steam generator, at the same time the intermediate reheating of the main flow of steam is realised in the system of steam-steam reheating of the steam turbine by the intermediate steam coolant, generated in the waste heat steam generator of the gas turbine. EFFECT: invention makes it possible to eliminate significant hydraulic and therm...
FIELD: chemistry. SUBSTANCE: invention relates to novel crystalline forms of tiotropium bromide, ... more FIELD: chemistry. SUBSTANCE: invention relates to novel crystalline forms of tiotropium bromide, characterised by X-ray powder diffraction pattern XRD, having peaks at approximately 20.2, 26.5, 28.0 and 31.2±0.2 degrees 2-theta and at approximately 20.9, 21.1, 21.4 and 34.43±0.2 degrees 2-theta. The invention also relates to methods of producing said forms and pharmaceutical compositions having anticholinergic activity, based on said compounds. EFFECT: novel more stable forms of tiotropium bromide which can be used in medicine to treat asthma or chronic obstructive pulmonary disease are obtained. 22 cl, 16 dwg, 21 ex
В статье рассматривается история научных поисков венгерского ученого Берната Мункачи, начиная с с... more В статье рассматривается история научных поисков венгерского ученого Берната Мункачи, начиная с самых ранних его экспедиций. Первая научная поездка Мункачи и И. Куноша состоялась летом 1880 г. к венграм, говорящим на чангошском диалекте в Молдове. Маршрут экспедиции к удмуртам вел Мункачи от г. Сарапула через с. Люк в Мултан, Зуру, Балезино к глазовским удмуртам. Побывав в удмуртских деревнях на башкирских землях, он старался максимально широко охватить этнический и языковой ареалы удмуртов. Завершающим этапом его трехмесячного путешествия стала работа среди елабужских удмуртов. В марте 1888 г. Б. Мункачи отправился в длительную экспедицию в Западную Сибирь к обским уграм. Отдельное место в статье занимает анализ антропологических и этнографических исследований, проведенных австро-венгерскими и немецкими учеными в годы Первой мировой войны. Основу исследований составили записи фольклорно-лингвистических материалов от пленных информантов в 1915-1917 гг., проводившиеся с использование...
FIELD: physics. SUBSTANCE: short light pulses are emitted into an inhomogeneous atmosphere and ec... more FIELD: physics. SUBSTANCE: short light pulses are emitted into an inhomogeneous atmosphere and echo signals are received. The echo signals are corrected for the lidar geometric factor. The corrected signals are accumulated during a given period of time depending on the overall length of the investigated area. The light pulses are deflected in at least two points of the probing path in directions towards a common scattering volume. Optical thickness of the area enclosed between points where the pulses are deflected is taken into account in order to determine transparency of the atmosphere. EFFECT: high accuracy of determination due to correct accounting for influencing factors. 1 dwg
FIELD: machine building. SUBSTANCE: group of inventions relates to automotive industry. Automotiv... more FIELD: machine building. SUBSTANCE: group of inventions relates to automotive industry. Automotive rotary device comprises a rotary body and an attached to it central housing connected with onboard bodies made with the possibility of propulsors mounting on them. Rotary body is equipped with a support-rotating wheel consisting of a fixed and a movable rings with running paths contacting with rolling bodies arranged there between. On the rotary body or on the movable ring of the support-rotating wheel there are bearing cylinders. Dump truck comprises mounted on the frame an engine compartment, a cabin, a cargo platform and installed under the frame two bridges with propulsors equipped with the said automotive rotary devices and a steering system. EFFECT: provided is simplified design of the rotary device and improved controllability of the dump truck. 6 cl, 6 dwg
FIELD: mining. SUBSTANCE: method comprises mechanical destruction of seafloor layer by an strippi... more FIELD: mining. SUBSTANCE: method comprises mechanical destruction of seafloor layer by an stripping knife moving along the seafloor, and transportation of destruction products to the surface. The products of destruction are placed in elastic, gas-tight shells, which are collected along the surface and transported them to the place of use in the transportation vessel refrigerators. The combine is a moving platform with a knife for seafloor cleaning with the mounted video camera and the stripping knife under the hole in the platform designed as a horizontally rotating cylinder with the scrapers mounted on it. The platform has two mounted cylinders, the first is a container with shells located horizontally one above another one, and the second one, mounted above the hole, is a loading container in the top side of which the segments with drive mechanisms shifting them from the cylinder axis are located. EFFECT: improvement of efficiency of ocean production of gas hydrates. 4 cl, 2 dwg
Вестник Науки Сибири, Jan 3, 2014
Успехи математических наук, 2004
Computer Optics, 2015
A two-fold way to increase the sensitivity of the optical sensor is proposed and numerically inve... more A two-fold way to increase the sensitivity of the optical sensor is proposed and numerically investigated. The sensor based on the coupled photonic crystal cavities is calculated as an illustration of the proposed approach. The correspondence between analytical and numerical modeling approach is demonstrated.