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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

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Мониторинг СМИ

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

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Применить Всего найдено 9. Отображено 9.
02-12-2009 дата публикации

Method for manufacturing artificial diamond polycrystalline grinding wheel dressing pen head

Номер: CN0101590627A
Принадлежит:

The invention provides a method for manufacturing an artificial diamond polycrystalline grinding wheel dressing pen head, which comprises the following steps: drilling a hole on a hexagonal boron nitride solid block in advance; putting a mixture of diamond and metal Co micro powder in the hole, and putting the hole and the mixture into a high-temperature and high-pressure resistant die to synthesize artificial diamond polycrystalline (PCD) so as to achieve the preforming of the dressing pen head; and processing round or tapered holes and other holes on the hexagonal boron nitride solid block to achieve the shape diversification of the dressing pen head, and simultaneously controlling the size of the holes to determine the size of a pen head processing surface. The method can greatly improve the service life and can satisfy the requirement of industrial production; besides, the price is obviously lower than that of the prior dressing pen head made from materials of natural diamond and the ...

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06-06-2023 дата публикации

DPDK-based flow acquisition asymmetrical homologous and homoclinic method

Номер: CN116233023A
Принадлежит:

The invention discloses a DPDK-based flow acquisition asymmetrical homologous and homoclinic method, which relates to the field of network flow acquisition, and comprises the following steps: S1, respectively accessing uplink flow and downlink flow to be acquired into network ports at two ends of a dual-port network card of acquisition equipment; s2, initializing a DPDK operation environment, and configuring network ports at two ends as packet capture interfaces; s3, initializing configuration of network ports at two ends; s4, configuring N packet capturing threads; s5, starting a packet capture program, and traversing each receiving queue obtained on the dual-port network card by a packet capture thread through a DPDK packet capture interface; respectively starting M receiving queues on a dual-port network card accessed with asymmetric flow, configuring symmetric Hash to ensure that data packets of the same two-tuple or five-tuple are distributed to the same queue, equally dividing the ...

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08-12-2010 дата публикации

Method for manufacturing artificial diamond polycrystalline grinding wheel dressing pen head

Номер: CN0101590627B
Принадлежит:

The invention provides a method for manufacturing an artificial diamond polycrystalline grinding wheel dressing pen head, which comprises the following steps: drilling a hole on a hexagonal boron nitride solid block in advance; putting a mixture of diamond and metal Co micro powder in the hole, and putting the hole and the mixture into a high-temperature and high-pressure resistant die to synthesize artificial diamond polycrystalline (PCD) so as to achieve the preforming of the dressing pen head; and processing round or tapered holes and other holes on the hexagonal boron nitride solid block to achieve the shape diversification of the dressing pen head, and simultaneously controlling the size of the holes to determine the size of a pen head processing surface. The method can greatly improve the service life and can satisfy the requirement of industrial production; besides, the price is obviously lower than that of the prior dressing pen head made from materials of natural diamond and the ...

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22-08-2023 дата публикации

Low-pressure cylinder zero-output heat supply unit with long-blade inlet unit and coupling heat supply system

Номер: CN116624236A
Принадлежит:

The low-pressure cylinder zero-output heat supply unit comprises a low-pressure cylinder and an intermediate-pressure cylinder, a steam exhaust port of the intermediate-pressure cylinder is connected with a first communicating pipe and a second communicating pipe, the tail ends of the first communicating pipe and the second communicating pipe are connected with a steam inlet of the low-pressure cylinder, a heat supply butterfly valve is arranged on the first communicating pipe, and a heat supply butterfly valve is arranged on the second communicating pipe. The second communicating pipe is provided with an orifice plate flowmeter and a cooling steam adjusting valve, and a steam outlet of the low-pressure cylinder is connected with a condenser. An original steam inlet pipeline of the low-pressure cylinder is cut off for steam inlet, the running state of the low-pressure cylinder is changed into a small-volume flow working condition, and a water spraying temperature reduction system and a ...

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22-08-2023 дата публикации

Mail sending path and sending IP extraction method based on frontier mail service data

Номер: CN116633670A
Принадлежит:

The invention discloses a mail sending path and sending IP extraction method based on frontier mail service data, and relates to the field of mail analysis, and the method comprises the steps: S1, obtaining a mail header of a to-be-tested mail; s2, detecting an origin IP field and a Received field of a mail header; s3, analyzing whether an origin IP field and a Received field exist or not, and if the origin IP field and the Received field both exist, entering S4; if only the origin IP field exists, going to S5; if only the Received field exists, going to S6; if the sending path and the sending IP do not exist, the sending path and the sending IP are empty; s4, analyzing the relationship between the origin IP field and the Received field, and determining a sending path and a sending IP; s5, analyzing related information of the source IP field, and determining a sending path and a sending IP, S6, the sending path is a path formed by upward combination of the Received field, and the sending ...

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17-11-2010 дата публикации

Use of electrothermal alloy in six-side top high-temperature high-pressure synthetic cavity

Номер: CN0101279223B
Принадлежит:

The invention more particularly relates to an electric heating element that uses an electrothermal alloy containing iron, chrome, aluminum, columbium, tantalum and molybdenum as an electric heating element and is applied to a cubic multi-anvil high pressure apparatus for a technique of indirect heating and synthesizing a diamond at high pressure and high temperature. The alloy can also be appliedto the growth of cubic boron nitride, carborundum monocrystal and gallium nitride monocrystal. The heating element rolls the electrothermal alloy with the components of 65 to 80 percent of iron, 13 to 27 percent of chrome, 4 to 7 percent of aluminum and 0.5 to 1 percent of the mixture composed of one or more of columbium, tantalum and molybdenum, into a pellicle with a thickness of 0.05 to 0.3mm,while the pellicle is cut with a certain width and length so as to take the place of a graphite heating pipe in the assembly of indirect heating and synthesizing the diamond. The element of the invention ...

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08-10-2008 дата публикации

Use of electrothermal alloy in six-side top high-temperature high-pressure synthetic cavity

Номер: CN0101279223A
Принадлежит:

The invention more particularly relates to an electric heating element that uses an electrothermal alloy containing iron, chrome, aluminum, columbium, tantalum and molybdenum as an electric heating element and is applied to a cubic multi-anvil high pressure apparatus for a technique of indirect heating and synthesizing a diamond at high pressure and high temperature. The alloy can also be applied to the growth of cubic boron nitride, carborundum monocrystal and gallium nitride monocrystal. The heating element rolls the electrothermal alloy with the components of 65 to 80 percent of iron, 13 to 27 percent of chrome, 4 to 7 percent of aluminum and 0.5 to 1 percent of the mixture composed of one or more of columbium, tantalum and molybdenum, into a pellicle with a thickness of 0.05 to 0.3mm, while the pellicle is cut with a certain width and length so as to take the place of a graphite heating pipe in the assembly of indirect heating and synthesizing the diamond. The element of the invention ...

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25-03-2015 дата публикации

Digitalized high voltage power source for movable high-frequency X-ray machine

Номер: CN104470174A
Принадлежит:

The invention provides a digitalized high voltage power source for a movable high-frequency X-ray machine. An STM 32F103 controller is connected with a high voltage drive circuit module, a filament current drive module, a peripheral input information collecting module, a CAN bus communication module, a power source front-stage processing circuit, a peripheral input information collecting module, a CAN bus communication module, a CPLD protective circuit, a 1# voltage reference source circuit and a 2# reference source circuit and is provided with a peripheral input port. The high voltage drive circuit module and the filament current drive module are connected with a high voltage generator. According to the digitalized high voltage power source for the movable high-frequency X-ray machine, stable work of a control system of the STM32F103 controller is completed through double voltage reference sources, and unnecessary losses caused by a dead halt are effectively avoided; after the digitalized ...

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09-06-2023 дата публикации

TTL-based man-in-the-middle hijacking position detection method

Номер: CN116248379A
Принадлежит:

The invention discloses a TTL-based man-in-the-middle hijacking position detection method, and belongs to the field of hijacking position detection. The method comprises the steps that S1, two network ports of a server serve as a mirror image network port and a packet sending network port respectively; s2, capturing the flow of a mirror port, detecting hijacking, and entering S3 if the hijacking exists; s3, constructing an ICMP request data packet, and sending the ICMP request data packet through a packet sending network port; s4, constructing a detection flow data packet; the TCP is hijacked to S5; hijacking the UDP to S6; s5, copying SYN data packet information, sending the SYN data packet information through a packet sending network port, completing handshake for three times, extracting a TCP data request load, packaging a TCP request message, sending the TCP request message through the packet sending network port, and entering S7; s6, copying a UDP request data packet, extracting a ...

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