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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 26. Отображено 26.
27-04-2011 дата публикации

Self-adjusting storm valve

Номер: CN0102030089A
Автор: Tan Hua, Zeng Juncai, Gao Pin, Liu Jinbiao, Chen Bing, Tong Zhiyong, Miao Jianming, Wang Siwei
Принадлежит:

The invention discloses a self-adjusting storm valve, which comprises a storm shield, a storm float valve, a breather pipe, an air intake pipe, a settling tank, seal rings A and B, a guide groove, a slide rail, a tray and a fixed support, wherein the storm shield has a frustum-shaped structure of which the bottom is provided with a counter bore; the storm float valve has a frustum-shaped cavity shell structure of which the upper end is provided with a counter bore; a through hole is formed in the axle center of the counter bore; the guide groove is formed on a through hole wall; a seal grooveis formed at the periphery of the counter bore at the upper end of the storm float valve; a seal boss is arranged on the inner side of the top of the storm shield corresponding to the seal groove; a through hole is formed on the side of the top of the breather pipe; a seal groove is formed at the junction of the counter bore of the storm float valve and the through hole; and a seal boss is arranged ...

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Номер записи: 1
14-07-2010 дата публикации

System for automatically evaluating machine translation by using sentence structure information and implementing method

Номер: CN0101777044A
Автор: DING ZEYA, HUANG ZENGYANG, MIAO JIANMING, WEI XIANGFENG, YUAN YI, ZHANG QUAN, ZEYA DING, ZENGYANG HUANG, JIANMING MIAO, XIANGFENG WEI, YI YUAN, QUAN ZHANG
Принадлежит:

The invention discloses a method for automatically evaluating machine translation, which comprises the following steps: reading machine translated text obtained by the machine translation, sentence structure related marking information of the machine translated text and a source language sentence; reading the sentence structure related marking information of the source language sentence, the reference translated text of the source language sentence and the sentence structure related marking information of the reference translated text according to the source language sentence; analyzing the sentence structure of the machine translated text, analyzing the sentence structure of the source language sentence, and analyzing the sentence structure of the reference translated text; comparing the sentence structure of the source language sentence with the sentence structure of the reference translated text, and calculating the conversion condition of the sentence structure of the reference translated ...

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Номер записи: 2
28-10-2009 дата публикации

Inflatable vibration damper

Номер: CN0101566206A
Автор: ZENG JUNCAI, ZHONG LEI, TONG ZHIYONG, LIU JINBIAO, GAO PIN, CHEN BING, MIAO JIANMING, LIU XIAOFANG, LIU WENLI, LU ZHUFEI, ZHANG CHENGKE, SUN CHANG, LIU SHUFENG, JUNCAI ZENG, LEI ZHONG, ZHIYONG TONG, JINBIAO LIU, PIN GAO, BING CHEN, JIANMING MIAO, XIAOFANG LIU, WENLI LIU, ZHUFEI LU, CHENGKE ZHANG, CHANG SUN, SHUFENG LIU
Принадлежит:

The invention discloses an inflatable vibration damper, which consists of an inflatable rubber bag, a metal mounting component and a gas charging connector component. The mounting component and the gas charging connector component are vulcanized as a whole by the inflatable rubber bag through means of vulcanization technique and the shape of the mounting component is matched with a device requiring vibration damping. The vibration damper has the advantages of wide application field, strong overloading resistance, compact structure, adjustable rigidity and the like and is applicable to occasions needing stable, accurate and precise dynamic systems, such as the vibration damping of a field testing device.

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Номер записи: 3
10-02-2010 дата публикации

Acquisition system and method of text field based on concept symbols

Номер: CN0101645083A
Автор: WEI XIANGFENG, HUANG ZENGYANG, ZHANG QUAN, MIAO JIANMING, XIANGFENG WEI, ZENGYANG HUANG, QUAN ZHANG, JIANMING MIAO
Принадлежит:

The invention discloses an acquisition system and a method of the text field based on concept symbols. The system comprises a concept symbol set for expressing word concepts and field categories, a word knowledge base for storing word and concept symbols, a word segmentation processor, a statement semantic analyzer and a field arbiter. The method comprises the following steps: (1) segmenting an input text into paragraphs, statements and words; (2) carrying out semantic analysis on the statements for obtaining concept categories and semantic blocks of the statements; (3) obtaining activating words in the statements according to semantic concept symbols in the field concept symbol set and the word knowledge base; (4) carrying out comprehensive scoring on field concept symbols of the activating words and obtaining the field concept symbol with the highest score as the field of the statements; (5) merging the statements in the paragraphs according to the field concept symbols for obtaininga ...

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Номер записи: 4
08-12-2010 дата публикации

Object emission spectrum-based temperature measurement method

Номер: CN0101907492A
Автор: JIANHUA YAO, JIANMING MIAO, YAO JIANHUA, MIAO JIANMING
Принадлежит:

The invention discloses an object emission spectrum-based temperature measurement method, which comprises the following steps of: (1) acquiring continuous spectrums emitted by an object to be measured at a certain temperature by using a spectrograph and filtering and smoothing the continuous spectrums; and (2) acquiring an ln (E(lambda, T)lambda5) related variation curve according to the spectrum data in a spectrum width range of 50 to 150 nanometers, solving the slope A of the variation curve by adopting a linear fitting method, and acquiring the temperature T of the object to be measured according to an equation, wherein E(lambda, T) is the spectral intensity, lambda is the radiation wavelength, T is the temperature of the object, and c2=1.43879*10<-2>m/K is the second radiation constant. The method improves the accuracy and universality of temperature measurement.

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Номер записи: 5
30-04-2014 дата публикации

Automatic transverse control device for pulling cable array in ocean

Номер: CN103760596A
Автор: DUAN RUIFANG, WANG DELIANG, RUAN FUMING, ZHU YAOQIANG, MIAO JIANMING, CAO ZHANQUAN, HUANG DEYOU, ZENG XIANG, ZHANG CHENGKE, REN HONGWEI, SHEN RUI
Принадлежит:

The invention discloses an automatic transverse control device for pulling a cable array in ocean. The device comprises a shell, an acoustic receiving transducer unit, a communication unit, a circuit unit, a driving unit, a wing plate unit, a power source unit and a locking unit. According to the device, sound wave signals are processed by the circuit unit to generate ranging signals, the ranging signals are sent to a cabin control chamber through the communication unit, after the ranging signals are analyzed by the cabin control chamber, current cable array information is compared with a target cable array information, the angle by which wing plates need to rotate is determined, through the communication unit, an angle instruction is sent to the driving unit through the circuit unit, and further the winging plates are driven to rotate to the set angle. The automatic transverse control device can be applied to the technical field of ocean oil seismic exploration. With the device, the distance ...

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Номер записи: 6
04-07-2012 дата публикации

Acquisition system and method of text field based on concept symbols

Номер: CN0101645083B
Автор: WEI XIANGFENG, HUANG ZENGYANG, ZHANG QUAN, MIAO JIANMING, XIANGFENG WEI, ZENGYANG HUANG, QUAN ZHANG, JIANMING MIAO
Принадлежит:

The invention discloses an acquisition system and a method of the text field based on concept symbols. The system comprises a concept symbol set for expressing word concepts and field categories, a word knowledge base for storing word and concept symbols, a word segmentation processor, a statement semantic analyzer and a field arbiter. The method comprises the following steps: (1) segmenting an input text into paragraphs, statements and words; (2) carrying out semantic analysis on the statements for obtaining concept categories and semantic blocks of the statements; (3) obtaining activating words in the statements according to semantic concept symbols in the field concept symbol set and the word knowledge base; (4) carrying out comprehensive scoring on field concept symbols of the activating words and obtaining the field concept symbol with the highest score as the field of the statements; (5) merging the statements in the paragraphs according to the field concept symbols for obtaining ...

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Номер записи: 7
30-06-2023 дата публикации

Manufacturing method of light emitting diode of underwater vehicle illuminating lamp and illuminating lamp thereof

Номер: CN116364813A
Автор: ZHANG HAOSU, ZHENG RUOHAN, MA CHENG, MIAO JIANMING, WANG TAO, GONG XI
Принадлежит:

The invention discloses a method for manufacturing a light emitting diode of an underwater vehicle illuminating lamp and the illuminating lamp. The method comprises the following steps: arranging a layer of substrate; measuring an ideal light-emitting curve of the semiconductor original sheet; calculating the optimal proportion and the optimal thickness of the optimization layer according to the ideal luminescence curve; manufacturing a material of the optimization layer through a co-sputtering process; and plating the optimization layer on the surface of the positive electrode layer through magnetron sputtering to obtain the semiconductor optimization sheet. And packaging the semiconductor optimization sheet to obtain the light-emitting diode and manufacture the illuminating lamp. And calculating the optimal proportion and the optimal thickness of the optimization layer, and covering the semiconductor original sheet, so that the light-emitting curve of the semiconductor original sheet ...

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Номер записи: 8
06-01-2010 дата публикации

Ocean towing linear array high-precision course heading control method

Номер: CN0100578410C
Автор: ZHIPING ZHAO, WUBO PEI, HUI ZHANG, DONGPING WANG, ZHAOHUI LI, JIANMING MIAO, HONG GUAN, XIAOJUN HE, CHENGKE ZHANG, DELIANG WANG, XUEMIN LU, CHENGLING HE, HONGWEI REN, ZHAO ZHIPING, PEI WUBO, ZHANG HUI, WANG DONGPING, LI ZHAOHUI, MIAO JIANMING, GUAN HONG, HE XIAOJUN, ZHANG CHENGKE, WANG DELIANG, LU XUEMIN, HE CHENGLING, REN HONGWEI
Принадлежит:

The present invention discloses a high-precision heading control method for an oceanic towed cable array. The high-precision heading control method has the following steps: a group of cable spreaders and acoustic towing bodies are intervallically mounted on cables; a console on board is communicated with the spreaders by half duplex and rollcalling and inquiring; when the towed cable array is just laid into the water, the spreading alar plates of all the cable spreaders are set at a zero angle of attack by default, all the cable spreaders on a reference cable start to measure respective heading angles, and the spreaders and the console on board realize self-closed loop heading angle adjustment; afterwards, the cable spreaders are always adjusted in a certain cycle according to an interval measured by the acoustic towing bodies and by comparing the interval with a set value, so that the interval between a node and the reference towed cable is maintained near to the set value. The high-precision ...

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Номер записи: 9
20-01-2010 дата публикации

Device for salvaging and reclaiming underwater object

Номер: CN0101628615A
Автор: CHEN BING, ZHAO ZHIPING, GAO PIN, LU LIANGCHUAN, LU XUEMIN, ZENG JUNCAI, JI WEI, TI WENMENG, QIU XIAOJIAN, MIAO JIANMING, LI XINHUI, SUN CHANG, LU ZHUFEI, BING CHEN, ZHIPING ZHAO, PIN GAO, LIANGCHUAN LU, XUEMIN LU, JUNCAI ZENG, WEI JI, WENMENG TI, XIAOJIAN QIU, JIANMING MIAO, XINHUI LI, CHANG SUN, ZHUFEI LU
Принадлежит:

The invention discloses a device for salvaging and reclaiming an underwater object, which comprises a base, an air bag, an air bottle and an air supply pipe system. The air bag is fixed on the base, the air bottle is fixed in the air bag, and the air bag is connected with the air bottle through the air supply pipe system; and when an underwater detection apparatus needs to be reclaimed, the air bag is inflated by the air bottle, the holding capacity of the air bag is continuously increased to generate certain positive buoyancy and carry the underwater detection apparatus to float towards the water surface. The device can be integrated with the underwater detection apparatus through butt joint or binding, so the device can be flexibly applied to different occasions, and has compact structure and convenient use.

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Номер записи: 10
04-08-2023 дата публикации

Rail traffic signal lamp

Номер: CN116532402A
Автор: MIAO JIANMING
Принадлежит:

The invention provides a rail traffic signal lamp, and aims to solve the technical problem that the brightness of the signal lamp is reduced after dust in a rail traffic tunnel is attached to the signal lamp in the prior art. The signal lamp comprises a lamp body, the top face of the lamp body is provided with an annular sliding groove, a lamp used for providing signal indication is arranged in the lamp body, and the bottom of the lamp body is provided with a lamp cover made of light-transmitting materials; the driving ring is located at the top of the lamp body, the axis of the driving ring is collinear with the axis of the sliding groove, one end of the driving ring is slidably arranged in the sliding groove, and the driving ring can rotate around the axis of the driving ring; the scraping plate is located outside the lamp cover, one side of the scraping plate makes contact with the surface of the lamp cover, one end of the scraping plate is rotationally connected with the middle of the ...

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Номер записи: 11
04-07-2023 дата публикации

Time-varying ocean current estimation method and system based on interactive Kalman model

Номер: CN116380075A
Автор: ZHANG HAOSU, MA CHENG, ZHENG RUOHAN, WANG TAO, MIAO JIANMING, GONG XI, PENG CHAO, REN LEI, XU LINGJI
Принадлежит:

The invention provides a time-varying ocean current estimation method and system based on an interactive Kalman model. The method comprises the following steps: establishing a preset number of ocean current sub-models according to acquired ocean current information of a target area; according to each ocean current sub-model, constructing a corresponding linear Kalman sub-filter; according to the navigation parameters and the covariance matrix output by each linear Kalman sub-filter, obtaining a sub-filter mixing probability, and according to the sub-filter mixing probability, obtaining fusion ocean current information of each linear Kalman sub-filter; and obtaining fusion filter output according to the fusion ocean current information of each linear Kalman sub-filter, and obtaining a time-varying ocean current estimated value according to the fusion filter output. Based on the ocean current multi-model theory, the outputs of the plurality of sub-filters are mixed and superposed according ...

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Номер записи: 12
07-05-2014 дата публикации

Automatic folded-down type fully-sealed air intake and exhaust device

Номер: CN103770924A
Автор: LIU JINBIAO, PEI WUBO, MIAO JIANMING, CHEN BING, GAO PIN, LIU RIKE
Принадлежит:

The invention discloses an automatic folded-down type fully-sealed air intake and exhaust device. The device can realize that the air intake and exhaust device is stably and automatically folded down and vertical; after the device is vertical, locking sealing of the air intake and exhaust device and a supporting base and dynamic sealing between an upper air exhaust pipe and a lower air exhaust pipe can be realized. The following specific measures are adopted: firstly, a built-in balance valve is arranged on a rise-and-fall hydraulic cylinder, so that when the air intake and exhaust device is folded down and runs vertically, the movement is smooth, and the device cannot fall down quickly because of gravity or other conditions; secondly, an irregularly-shaped combined seal ring is used between the air intake and exhaust device and the supporting base, the problem of the air intake and exhaust device that the seal ring is extruded out from a groove during the process that the seal ring is ...

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Номер записи: 13
03-11-2010 дата публикации

Identification method of Chinese place name

Номер: CN0101876975A
Автор: ZHANG QUAN, YUAN YI, WEI XIANGFENG, MIAO JIANMING, LI NUO, QUAN ZHANG, YI YUAN, XIANGFENG WEI, JIANMING MIAO, NUO LI
Принадлежит:

The invention provides an identification method of a Chinese place name, which comprises the following steps of: reading a Chinese text to be processed and a calculating parameter required by candidate place name identification; finding out place name last characters in each sentence in the Chinese text to be processed according to a place name last character table, then calculating the fractional value of a character string as a candidate place name comprising a plurality of characters before the place name last characters on the basis of the place name last characters, and determining whether the character string is the candidate place name in the sentence or not according to a comparative result between the fractional value and a threshold value; carrying out word segmentation processing on the sentence containing the candidate place name, and labeling the concept attribute of the word obtained after word segmentation; reading the parameter required by the refined calculation for the ...

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Номер записи: 14
25-07-2012 дата публикации

System for automatically evaluating machine translation by using sentence structure information and implementing method

Номер: CN0101777044B
Автор: ZEYA DING, ZENGYANG HUANG, JIANMING MIAO, XIANGFENG WEI, YI YUAN, QUAN ZHANG, DING ZEYA, HUANG ZENGYANG, MIAO JIANMING, WEI XIANGFENG, YUAN YI, ZHANG QUAN
Принадлежит:

The invention discloses a method for automatically evaluating machine translation, which comprises the following steps: reading machine translated text obtained by the machine translation, sentence structure related marking information of the machine translated text and a source language sentence; reading the sentence structure related marking information of the source language sentence, the reference translated text of the source language sentence and the sentence structure related marking information of the reference translated text according to the source language sentence; analyzing the sentence structure of the machine translated text, analyzing the sentence structure of the source language sentence, and analyzing the sentence structure of the reference translated text; comparing thesentence structure of the source language sentence with the sentence structure of the reference translated text, and calculating the conversion condition of the sentence structure of the reference translated ...

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Номер записи: 15
10-12-2008 дата публикации

Ocean towing linear array high-precision course heading control method

Номер: CN0101320271A
Автор: ZHIPING ZHAO, WUBO PEI, HUI ZHANG, DONGPING WANG, ZHAOHUI LI, JIANMING MIAO, HONG GUAN, XIAOJUN HE, CHENGKE ZHANG, DELIANG WANG, XUEMIN LU, CHENGLING HE, HONGWEI REN, ZHAO ZHIPING, PEI WUBO, ZHANG HUI, WANG DONGPING, LI ZHAOHUI, MIAO JIANMING, GUAN HONG, HE XIAOJUN, ZHANG CHENGKE, WANG DELIANG, LU XUEMIN, HE CHENGLING, REN HONGWEI
Принадлежит:

The present invention discloses a high-precision heading control method for an oceanic towed cable array. The high-precision heading control method has the following steps: a group of cable spreaders and acoustic towing bodies are intervallically mounted on cables; a console on board is communicated with the spreaders by half duplex and rollcalling and inquiring; when the towed cable array is just laid into the water, the spreading alar plates of all the cable spreaders are set at a zero angle of attack by default, all the cable spreaders on a reference cable start to measure respective heading angles, and the spreaders and the console on board realize self-closed loop heading angle adjustment; afterwards, the cable spreaders are always adjusted in a certain cycle according to an interval measured by the acoustic towing bodies and by comparing the interval with a set value, so that the interval between a node and the reference towed cable is maintained near to the set value. The high-precision ...

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Номер записи: 16
05-05-2023 дата публикации

Simulated recovery system and method for deep-sea submersible vehicle

Номер: CN116071976A
Автор: HAN MINGYUE, XIAN HAOYI, ZHONG XINXIN, XIE PENG, MIAO JIANMING
Принадлежит:

The invention discloses a simulated recovery system and method for a deep-sea submersible vehicle. The simulated recovery system for the deep-sea submersible vehicle comprises a mother ship, a wired underwater robot and a submersible vehicle, the mother ship is provided with a control end, and the control end is configured to be connected with the wired underwater robot through a cable; the wired underwater robot is provided with an acoustic transducer, an underwater high-definition camera and a manipulator, and the acoustic transducer is located on one side of the underwater high-definition camera; the submersible vehicle is provided with an acoustic array, a recovery lifting hook and a light source, and the recovery lifting hook is located between the acoustic array and the light source; the simulation recovery system of the deep-sea submersible vehicle can simulate the underwater recovery process of the deep-sea submersible vehicle, provides reference for the intelligent recovery mode ...

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Номер записи: 17
04-08-2023 дата публикации

Base positioning method and device for underwater moving base, storage medium and equipment

Номер: CN116539029A
Автор: ZHANG HAOSU, WANG TAO, MIAO JIANMING, REN LEI, GONG XI, CAI HUAYANG
Принадлежит:

The invention relates to a base positioning method and device for an underwater moving base, a storage medium and equipment, and the method comprises the following steps: determining a coarse alignment starting moment, and solving an initial attitude of the moving base in an inertial navigation system by shaking a base alignment model in a coarse alignment process to obtain an initial attitude at an inertial navigation coarse alignment ending moment; and determining a fine alignment starting moment according to the coarse alignment ending moment, and performing fine alignment on the movable base according to the initial attitude of the inertial navigation coarse alignment ending moment and a fine alignment model in the fine alignment process to obtain a current attitude angle of the movable base. Compared with the prior art, the method almost does not need external information, can be suitable for a movable base, guarantees that the algorithm has high alignment precision and certain anti-interference ...

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Номер записи: 18
05-01-2011 дата публикации

Method and system for automatically evaluating literature

Номер: CN0101937462A
Автор: XIANGFENG WEI, QUAN ZHANG, ZENGYANG HUANG, JIANMING MIAO, YUHUAN CHI, WEI XIANGFENG, ZHANG QUAN, HUANG ZENGYANG, MIAO JIANMING, CHI YUHUAN
Принадлежит:

The invention provides a method for automatically evaluating literature, which comprises the following steps: extracting contents containing references and quotation texts of the references from literature; carrying out semantic analysis on the sentences in the quotation texts, wherein the semantic analysis comprises the segmentation for segmenting the sentences into words, the semantic chunk segmentation for generating the conceptual type of the sentences according to the conceptual type of the words, and the sentence assumption and check for generating the sentence expressions and semantic chunks of the sentences according to the conceptual type of the sentences; carrying out tendency analysis on the sentences in the quotation texts according to the sentence expressions and semantic chunks of the sentences, the polarity words in the sentences and the tendency evaluation model; and acquiring the tendency attitude of the quotation texts to the references through the results of the tendency ...

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Номер записи: 19
11-04-2023 дата публикации

Cross-language science and technology paper automatic recommendation method

Номер: CN115952345A
Автор: MIAO JIANMING, QIN QIANG, HE XIN, SHEN BINGZHEN, HAN YUXING, TENG LINRAN, HU ZIBO
Принадлежит:

The invention relates to a cross-language automatic recommendation method for science and technology papers, and belongs to the field of natural language processing. The method comprises the following steps: acquiring a full-text content text of the English science and technology paper from an English science and technology publication website; extracting the content of the reference and a citation text of the reference; performing semantic analysis on statements in the citation text; performing tendency analysis on the statements in the citation text according to the semantic chunks, the sentence type expressions, the polar words contained in the statements and a tendency evaluation model to obtain the tendency attitude of the citation text to the reference; counting the tendency attitudes of the papers in the English science and technology paper set to the references, and generating recommendation degrees of the papers in the English science and technology paper set according to the tendency ...

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Номер записи: 20
23-06-2023 дата публикации

Testing device capable of measuring friction force and contact pressure of inlet and outlet strokes of sealing element

Номер: CN116292517A
Автор: PENG CHAO, TAN SHUANG, JIN SIBO, WEI ZHIYING, ZHANG XIN, YANG LIANG, MIAO JIANMING, ZHANG HAOSU, GUO ZHIQUN, MOU WEI, GONG XI, LI JIE
Принадлежит:

The invention discloses a test device capable of measuring friction force and contact pressure of inlet and outlet strokes of a sealing element. The test device comprises a reciprocating driving system, a force sensor, a test cylinder, a piston rod and a pressure module, one end of the reciprocating driving system is connected with the force sensor; the other end of the force sensor is connected with the piston rod; the test cylinder comprises a first cylinder body, a second cylinder body, a first end cover, a second end cover, a first lining and a second lining; the first cylinder body is connected with the second cylinder body, and the piston rod penetrates through the first cylinder body and the second cylinder body; the first bushing is arranged between the test cylinder and the piston rod; the second bushing is arranged between the test cylinder and the piston rod; the test cylinder is connected with the pressure module; a first piston rod sealing piece and a second piston rod sealing ...

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Номер записи: 21
02-12-2015 дата публикации

Axle bush contact angle marks instrument

Номер: CN0204831221U
Автор: MIAO JIANMING, ZHAO LINFANG, LUO WEI
Принадлежит:

The utility model discloses an axle bush contact angle marks instrument, including linear guide, linear guide's downside is straight plane, is provided with the slider on linear guide, the lower part of slider be provided with a pair of hinge in the lower part of slider with some the laser scale that just can open and shut to both sides, the slider energy band two laser scales and is slided along linear guide. Above -mentioned axle bush contact angle marks instrument can accurate indicate the theoretical position of axle bush contact angle on the lower bearing, makes the maintenance personal can refer to the theoretical axle bush contact angle that indicates and revise actual axle bush contact angle scraping the watt -hour to the precision is repaired to the axle bush is greatly improved.

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Номер записи: 22
30-05-2023 дата публикации

Testing device for testing reciprocating sealing performance of sealing ring

Номер: CN116183213A
Автор: PENG CHAO, TAN SHUANG, HE TAO, MIAO JIANMING, XIE PENG, GONG XI, MOU WEI, WANG QIXIN, HU YANLIN, ZHANG HAOSU, GUO ZHIQUN
Принадлежит:

A reciprocating sealing performance test device for a sealing ring comprises a test cylinder system, an actuating hydraulic system and a load hydraulic system, and the test cylinder system comprises a test cylinder, a first piston rod and a first piston; a first piston cavity is formed in the testing cylinder, the first piston rod penetrates through the testing cylinder, a testing sealing ring is installed between the first piston rod and the testing cylinder, the first piston is slidably installed in the piston cavity and located at the tail end of the first piston rod, and the head end of the first piston rod is connected with a load hydraulic system. A force sensor is connected between the first piston rod and the load hydraulic system, the first piston divides the first piston cavity into a first rod cavity and a first rodless cavity which are variable in volume, the test cylinder is provided with a first connector communicated with the first rod cavity and a second connector communicated ...

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Номер записи: 23
04-04-2023 дата публикации

Railcar integrated navigation method and device under defense guide denial environment

Номер: CN115900701A
Автор: ZHANG HAOSU, MIAO JIANMING, ZHENG RUOHAN, MA CHENG
Принадлежит:

The invention discloses a rail car integrated navigation method and device in a satellite navigation rejection environment, and the method comprises the steps: building a Kalman model state equation through an inertial navigation error model and a Markov model of inertial device zero offset; obtaining all observed quantities, integrating the observed quantities to obtain an observation vector, and constructing a Kalman model observation equation according to the observation vector; obtaining a Kalman model based on the Kalman model state equation and the Kalman model observation equation, and performing real-time estimation and output correction on state variables based on the Kalman model to obtain a combined navigation algorithm; the combined navigation algorithm needs less external measurement information, and most observed quantities are characteristic quantities of inertial motion, so that the technical scheme of the invention can improve the measurement information of navigation precision ...

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Номер записи: 24
22-04-2015 дата публикации

X-ray prevention shielding film and preparation method thereof

Номер: CN104527172A
Автор: MIAO JIANMING
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The invention discloses an X-ray prevention shielding film and a preparation method thereof. The X-ray prevention shielding film comprises five layers of structures. The middle layer is a reinforced fabric layer, the outermost layer is a protective layer, a lead rubber layer is arranged between the reinforced fabric layer and the protective layer, and the reinforced fabric layer is made of chemical fiber cloth. The X-ray prevention shielding film is used for safety inspection, reinforced fabric can improve the mechanical strength, lead rubber can achieve the effect of shielding X-rays, abrasion resistance rubber prevents lead powder from being precipitated, the abrasion resistance degree is improved, and the service life is prolonged. According to the X-ray prevention shielding film and the preparation method thereof, traditional lead plastics are changed through lead rubber fusion, the shielding film is made softer, the durability is higher, and the phenomenon that the X rays are leaked ...

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Номер записи: 25
11-04-2023 дата публикации

Underwater moving base high-precision alignment method and system based on magnetic compass and tachymeter

Номер: CN115950447A
Автор: ZHANG HAOSU, WANG TAO, MIAO JIANMING, GONG XI, REN LEI, CAI HUAYANG, ZHENG RUOHAN
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The invention provides an underwater moving base high-precision alignment method and system based on a magnetic compass and a tachymeter, and the method comprises the steps: judging whether interference acceleration exists or not according to a preset alignment condition, and carrying out the first-stage coarse alignment through employing an accelerometer and a three-axis magnetometer to obtain an initial attitude angle if the interference acceleration does not exist; constructing an SRUKF model according to a preset INS/DVL combination alignment algorithm, and performing second-stage coarse alignment according to the initial attitude angle and the SRUKF model to obtain a first attitude angle; and according to a preset INS/DVL/DG combined alignment algorithm, constructing a linear Kalman model, and according to the first attitude angle and the linear Kalman model, performing fine alignment by adopting an output feedback mode to obtain a second attitude angle. The underwater moving base ...

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Номер записи: 26