Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 11. Отображено 11.
18-07-2023 дата публикации

Left ventricle pace-making threshold hop-by-hop monitoring system and method

Номер: CN116440414A
Принадлежит:

The invention provides a left ventricular pacing threshold hop-by-hop monitoring system and method, and the system comprises a CRT pulse generator which is configured to give pacing pulses to the heart; the self-adaptive AV interval circuit module is configured to optimize the AV interval value and feed back the optimized AV interval value to the CRT pulse generator; the left ventricle pace-making threshold hop-by-hop monitoring circuit module is electrically connected with the CRT pulse generator, and is configured to optimize left ventricle pace-making output energy according to the capture state of the LVp and the determined interventricular conduction state from the RV to the LV, and feed back the optimized left ventricle pace-making output energy to the CRT pulse generator; according to the method, the problem that fused waves and pseudo-fused waves can appear in the detection process of an existing CRT pacemaker and can generate adverse effects on judgment of the left ventricle pacing ...

Подробнее
01-07-2015 дата публикации

Preparation method of gray iron casting

Номер: CN104745758A
Автор: REN JIANGBO, WANG XU, LI HUA
Принадлежит:

The invention relates to a casting method, particularly a preparation method of a gray iron casting, which comprises the following steps: proportioning, smelting, inoculant adjustment, shape casting and ramoff treatment. The gray iron casting is prepared from 10-20% of pig iron, 35-45% of steel scrap, 0.6-0.8% of silicon iron, 1-1.3% of carburizing agent and the balance of returns. By reducing the addition amount of pig iron, increasing the proportion of steel scrap, adding the carburizing agent to supplement carbon content and adopting twice inoculation, the chemical components in the casting satisfy the requirements, thereby substituting the strength enhancement process by adding alloy and lowering the cost. The produced HT250 satisfies the national standard.

Подробнее
10-02-2010 дата публикации

Sulfur hexafluoride gaseous discharge micro component infrared detection device and method

Номер: CN0101644670A
Принадлежит:

A sulfur hexafluoride gaseous discharge micro component infrared detection device and method relates to a sulfur hexafluoride gaseous infrared absorption spectrum analysis device and method. The device of the invention mainly comprises an induction voltage regulator, a corona free experimental transformer, a non local discharge protective resistor, a standard capacitance voltage divider, a GIS analogue element, a non inductive resistance, a Fourier transform infrared spectrometer and a wideband high speed super capacity digital storage oscilloscope; wherein the gas tank in the Fourier transform infrared spectrometer is a long optical distance one. The method of the invention includes that discharge micro component detection is carried out on SF6 gas sample in GIS by utilizing the device ofthe invention. The invention can accurately detect various products produced by gas discharge decomposition of SF6 and has the characteristics of high detection precision, high spectrum resolution, good ...

Подробнее
23-06-2023 дата публикации

Power supply cabinet with cleaning function

Номер: CN116316145A
Принадлежит:

The invention relates to the technical field of power supply cabinets, in particular to a power supply cabinet with a cleaning function, which comprises a cabinet body, a shielding assembly is arranged at the top of the cabinet body, clamping rods are fixedly connected to the rear end of the cabinet body and close to the upper and lower parts, and a mounting frame is arranged on the outer sides of the two clamping rods jointly. The outer sides of the two ends of the mounting frame are connected with the inner sides of the corresponding clamping rods through arranged clamping assemblies, a sliding groove is formed in the inner side of the mounting frame, a sliding seat is slidably mounted on the inner side of the sliding groove, a reciprocating assembly is arranged at the bottom of the sliding seat, and a bidirectional telescopic cylinder is fixedly clamped to the inner side of the sliding seat. According to the power supply cabinet side wall cleaning device, different power supply cabinet ...

Подробнее
15-07-2015 дата публикации

Contusion-proof buffer device

Номер: CN104773470A
Автор: WANG XU, REN JIANGBO, LI HUA
Принадлежит:

The invention relates to the technical field of machine casting, in particular to a contusion-proof buffer device. The contusion-proof buffer device comprises a sliding groove, a buffer plate, a bearing, a supporting rod, a torque lever, a heavy hammer and a conveyor belt, wherein the buffer plate is positioned at one end of the sliding groove and is used for sealing an outlet of the sliding groove; the bottom part of the buffer plate is provided with the supporting rod in a welding way and is connected with the bearing through the supporting rod; the torque lever is vertically welded at the end part of the supporting rod and is arranged at the same side of the sliding groove; the heavy hammer is arranged at the tail part of the torque lever. According to the contusion-proof buffer device disclosed by the invention, by connecting the buffer plate between the sliding groove and the conveyor belt, a workpiece can be conveyed to the conveyor belt in a sliding way along the buffer plate, the ...

Подробнее
29-08-2023 дата публикации

Low-frequency load shedding auxiliary wire cutting device

Номер: CN116667365A
Принадлежит:

The invention is applicable to the technical field of power systems and automation thereof, and provides a low-frequency load shedding auxiliary wire cutting device. The low-frequency load shedding auxiliary wire cutting device comprises a control unit and a plurality of relays, for each relay, the first end of the relay is connected with the corresponding output end of the low-frequency load shedding device, the second end of the relay is connected with the tripping input end of the corresponding distribution line, and the third end of the relay is connected with the control unit; the control unit is used for acquiring load information of each distribution line and switching information of each output end of the low-frequency load shedding device, determining the property of the corresponding distribution line according to each piece of load information, and controlling the on-off of the corresponding relay according to the property of each distribution line and each piece of switching ...

Подробнее
25-04-2023 дата публикации

Secondary cable loop path automatic search method and system based on SPCD file

Номер: CN116011152A
Принадлежит:

The invention provides a secondary cable loop path automatic search method and system based on an SPCD file, and the method comprises the steps: defining a model format for devices, components, terminals, nodes and cables in a secondary cable loop of a transformer substation, and assigning the type of each node in the secondary cable loop of the transformer substation; comprising input, output, mold input and a power supply, each single secondary cable loop can only specify one power supply node as a starting point, and the modeling and analysis work of the secondary cable loop of the transformer substation is realized. According to the method, clear modeling expression of the topological relation of the secondary cable loop of the transformer substation and analysis with software are realized, the model system of the secondary cable loop of the transformer substation is perfected, and the digital expression and application efficiency of the secondary cable loop of the transformer substation ...

Подробнее
29-08-2023 дата публикации

Low-frequency load shedding and shedding method, protection measurement and control device and controller

Номер: CN116667364A
Принадлежит:

The invention is suitable for the technical field of power systems and automation thereof, and provides a low-frequency load shedding and shedding method, a protection measurement and control device and a controller. The method comprises the following steps: acquiring switching information of a low-frequency load shedding device in a power system, and acquiring load information of a distribution line in the power system; determining the property of the distribution line according to the load information of the distribution line; switching of the distribution line is controlled according to the switching information of the low-frequency load shedding device and the property of the distribution line; and after the distribution line is controlled to be switched, the load information of the cut distribution line is sent to the server. The power distribution line can be accurately switched when the frequency of the power system is reduced, and the situation that the frequency of the power system ...

Подробнее
30-06-2023 дата публикации

Automatic atrial pacing threshold test optimization method and test optimization circuit

Номер: CN116350947A
Принадлежит:

The invention provides an automatic atrial pacing threshold test optimization method and circuit, and the method comprises the steps: starting the test optimization circuit, completing the initialization of PVAB in a first register and PVARP in a second register, and starting an automatic atrial pacing threshold test. If the acquired atrial pace-making pulse Ap is detected and the acquired atrial pace-making pulse Ap is not detected in the test process, starting a test optimization circuit, optimizing PVAB and then updating a first register; when the PVARP is too large and the captured atrial pacing pulse Ap is not detected in the test process, or the PVARP is too small, a test optimization circuit is started, and the second register is updated after the PVARP is optimized; and if the PVAB and the PVARP are both in the standard range, the automatic atrial pacing threshold test is completed. According to the application, the success rate and reliability of the AAT test can be effectively ...

Подробнее
09-06-2023 дата публикации

Cleaning mechanism of power supply facility

Номер: CN116237287A
Принадлежит:

The invention belongs to the technical field of cleaning mechanisms, and particularly discloses a power supply facility cleaning mechanism which comprises a vehicle body, an adjusting structure and a dust suction structure are fixed to the top face of the rear portion of the vehicle body, a telescopic hydraulic cylinder is connected to the front side of the adjusting structure, the end of the telescopic hydraulic cylinder is fixed to an abutting cover, and a dust cleaning structure is connected to the abutting cover. The containing end of the dust collection structure communicates with an inner cavity of the abutting cover, and the dust collection structure is located on the rear side of the adjusting structure. In actual use, a user drives the abutting cover to abut against the surface of the power supply facility through the vehicle body, then the dust removing structure works, at the moment, the output ends of the first motor and the second motor can drive bristles to rub the surface ...

Подробнее
04-01-2012 дата публикации

Sulfur hexafluoride gaseous discharge micro component infrared detection device and method

Номер: CN0101644670B
Принадлежит:

A sulfur hexafluoride gaseous discharge micro component infrared detection device and method relate to a sulfur hexafluoride gaseous infrared absorption spectrum analysis device and method. The device of the invention mainly comprises an induction voltage regulator, a corona free experimental transformer, a non local discharge protective resistor, a standard capacitance voltage divider, a GIS analogue element, a non inductive resistance, a Fourier transform infrared spectrometer and a wideband high speed super capacity digital storage oscilloscope; wherein the gas tank in the Fourier transform infrared spectrometer is a long optical distance one. The method of the invention includes that discharge micro component detection is carried out on SF6 gas sample in GIS by utilizing the device of the invention. The invention can accurately detect various products produced by gas discharge decomposition of SF6 and has the characteristics of high detection precision, high spectrum resolution, good ...

Подробнее