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.
17-06-2009 дата публикации

Horizontal-push type self-discharging vehicle

Номер: CN0101456375A
Принадлежит:

The invention relates to a horizontal-push self-dumping truck, which is provided with a self-dumping machine and a self-dumping hydraulic system. The self-dumping machine comprises a carriage, a pushing carriage and a pushing part, wherein the pushing carriage is positioned in the carriage and is shorter than the carriage; and the pushing part is positioned in the pushing carriage and is shorter than the pushing carriage. The self-dumping hydraulic system comprises a left hydraulic cylinder, a right hydraulic cylinder, a middle hydraulic cylinder, a hydraulic pump, a hydraulic oil tank and related valves, wherein the left hydraulic cylinder and the right hydraulic cylinder are arranged between the carriage and the pushing carriage parallelly; and the middle hydraulic cylinder is arranged between the pushing carriage and the pushing part parallel to the left hydraulic cylinder and the right hydraulic cylinder. The left hydraulic cylinder and the right hydraulic cylinder are fixed on a bottom ...

Подробнее
10-12-2014 дата публикации

Hydraulic coupler with additionally-arranged U-shaped sealing ring

Номер: CN104196902A
Принадлежит:

The invention provides a hydraulic coupler with an additionally-arranged U-shaped sealing ring. A lip part and a sealing surface of the U-shaped sealing ring can be matched with each other more tightly when bearing pressure, so the U-shaped sealing ring will not move in the axial direction, it can be guaranteed that threads of a piston and threads of an inner sleeve are not interfered, and normal operation of the coupler is ensured. The hydraulic coupler comprises the inner sleeve and an outer sleeve. The inner circumferential surface of the outer sleeve and the outer circumferential surface of the inner sleeve are correspondingly matched with each other in a sleeved mode with a certain taper. A driving shaft and a driven shaft are inserted into an inner hole of the inner sleeve from the two ends of the inner sleeve respectively. The inner circumferential surface of the small-diameter end of an inner hole of the outer sleeve is provided with a stepped piston cavity. The piston is arranged ...

Подробнее
19-08-2015 дата публикации

Self-biasing power detection circuit for power amplifier

Номер: CN104852695A
Принадлежит:

The invention discloses a self-biasing power detection circuit for a power amplifier. The self-biasing power detection circuit comprises a signal acquisition circuit, a signal amplifying circuit and a signal shaping circuit, wherein the signal acquisition circuit is used for acquiring signals from a circuit to be detected, and is capable of controlling the magnitudes of the acquired signals; the signal amplifying circuit is used for amplifying the signals acquired by the signal acquisition circuit in order to provide sufficient output level signals; and the signal shaping circuit is used for shaping and filtering the amplified signals in order to output smooth level signals. A self-biasing structure is adopted for biasing, so that a complex biasing circuit structure in the power detection circuit is omitted; the area occupied by the chip is reduced; and the application cost of an on-chip power detection circuit structure is lowered. The signals of the power amplifier are acquired in a capacitive ...

Подробнее
23-05-2023 дата публикации

Bandwidth enhancement internal matching power amplifier with harmonic suppression

Номер: CN116155208A
Принадлежит:

The invention discloses a bandwidth enhanced internal matching power amplifier with harmonic suppression. The power amplifier comprises an input port, a power divider, a phase shift microstrip line, a carrier power amplifier, a peak power amplifier, a grounding branch knot, a load modulation network and an output port. According to the invention, the Doherty structure is firstly adopted to improve the efficiency of the power amplifier, and when the power fallback peak power amplifier is closed, the second harmonic of the carrier power amplifier is suppressed in the frequency band, and the power value at the second harmonic is reduced, so that the output power in the working frequency band can reach the maximum, and the purpose of improving the efficiency is further realized. According to the Doherty power amplifier, a section of grounding branch knot is added behind a peak power amplifier of the Doherty power amplifier, and when the power backoff peak power amplifier is closed, the frequency ...

Подробнее
18-06-2014 дата публикации

Service activation-based data processing method, device, server and system

Номер: CN103873433A
Принадлежит:

An embodiment of the invention discloses a service activation-based data processing method, device, server and system. The method includes: receiving an order-sending request and reading a work order which carries a service identifier and service parameters; leading in an order-sending instruction template corresponding to the service identifier, configuring the order-sending instruction template according to the service parameters to generate an order-sending instruction set, and leading in the order-sending instruction set to a memory instruction queue; and constructing an instruction-sending interface adaptive to a network element protocol, and performing order sending through the instruction-sending interface. For a service activation requirement that involves a plurality of network elements of different protocols, a method of template instruction generation lowers a complication degree of service activation data processing, and is suitable for order sending tasks of different protocols ...

Подробнее
15-09-2010 дата публикации

Business service switching system

Номер: CN0101043648B
Принадлежит:

The exchange system for business service in BOSS system comprises a service process scheduling module to define all business processes in the BOSS system and analyze the process for calling relative service assembly and completing the business. This invention simplifies system integration, separates the business implementation and business exhibition, and improves the clearness and maintainability for BOSS system.

Подробнее
04-08-2010 дата публикации

Interface gateway and interface gateway data processing method

Номер: CN0101022431B
Принадлежит:

A data processing method of interface gateway includes converting external data message received from external unit to be standard data message being further converted to be internal data message, carrying out service flow dispatch and processing call service according to data internal message, obtaining standard data message by carrying out format conversion on processed result, converting standard data message requiring to be sent to external unit to be message supporting external unit and returning converted message to external unit.

Подробнее
27-05-2015 дата публикации

Service provisioning method and system based on MongoDB

Номер: CN104660442A
Принадлежит:

The invention discloses a service provisioning method and system based on a MongoDB. The method comprises the following steps: writing received service orders into an order database in a MongoDB cluster, splitting service orders not processed in the order database into work orders according to order decomposition rules, and writing into a work order database in the MongoDB cluster; writing the work orders in the work order database into a network element processing queue in the work order database according to work order scheduling rules; processing the work orders in the network element processing queue, and feeding back work order processing results. According to the service provisioning method and system based on the MongoDB, the MongoDB is used as the database of the service provisioning system, the Tailable Cursors properties of the MongoDB are utilized, and the efficient processing of each distributed instruction can be realized through combining network element multi-connection and ...

Подробнее
10-08-2011 дата публикации

High torque-weight ratio detachable hydraulic coupling and surface treatment process for inner sleeve thereof

Номер: CN0102146964A
Принадлежит:

The invention provides a high torque-weight ratio detachable hydraulic coupling, which can improve the transfer power at the same time of ensuring that the coupling is not easily stuck during disassembly and assembly. The coupling comprises an inner sleeve and an outer sleeve; the inner sleeve comprises an inner surface layer, an outer surface layer and a central base layer; the outer surface of the outer sleeve is cylindrical, the inner surface of the outer sleeve is conical, and the inner surface of the outer sleeve is tightly sleeved on the outer surface of the inner sleeve; and the outer surface of the inner sleeve is conical, the inner surface of the inner sleeve is cylindrical, and the inner surface of the inner sleeve is tightly pressed on a shaft. The coupling is characterized in that: both the inner surface layer and the outer surface layer of the inner sleeve are of transition layered structures, and each surface layer consists of a compound layer and a dispersion layer serving ...

Подробнее
19-08-2015 дата публикации

Radio frequency power detection circuit

Номер: CN104849543A
Принадлежит:

The invention discloses a radio frequency power detection circuit comprising a bias circuit, a rectifier circuit and a DC voltage amplification circuit; a RFIN radio frequency signal is inputted, and detection voltage VOUT is outputted; the bias circuit is used for determining a static work point of the rectifier circuit; the rectifier circuit is used for converting the radio frequency signal into a DC voltage signal; the DC voltage amplification circuit is used for amplifying the DC voltage signal, so an output detection voltage scope satisfies index requests. The DC voltage amplification circuit is added on a conventional power detector of a diode rectifier structure, so DC voltage following system requirement can be outputted even when signal input power is small, thus lowering detection circuit input power requirements, and reducing power loss of an amplifier.

Подробнее
17-06-2015 дата публикации

Service system password management method and device

Номер: CN104717195A
Принадлежит:

The invention discloses a service system password management method and device. The service system password management method comprises the steps of invoking user password clear-text data in a service system, adopting first secret keys in password file headers to encrypt the user password clear-text data so as to generate password file bodies, adopting core secret keys to encrypt the password file headers and writing encrypted password file headers and the password file bodies into the same file to generate an encrypted merged file, adopting second secret keys to encrypt the encrypted merged file so as to generate a password file to be saved. In the mode that local password files are accessed through an API, the password using process can be independent of a password system and be self-existent, and convenience is brought to fast application deployment. In addition, the password files are encrypted in a three-layer encryption mode, and password safety is ensured to the maximum extent.

Подробнее