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 20. Отображено 20.
27-06-2023 дата публикации

Broadband ground penetrating radar equivalent automatic gain receiving system for surveying tunnel water inrush

Номер: CN116338679A
Принадлежит:

The invention discloses a broadband ground penetrating radar equivalent automatic gain receiving system for surveying tunnel water inrush, the automatic gain receiving system comprises an antenna subsystem and a main control subsystem, the antenna subsystem is composed of a ground-air coupling antenna, a low noise amplifier and an automatic gain control part; the master control subsystem is composed of an ADC module, an equivalent sampling time sequence controller and an MCU power supply circuit. The ground-air coupled antenna receives a signal and transmits the signal to the low-noise amplifier for low-noise amplification; the low-noise amplifier inputs the input signal subjected to low-noise amplification into the automatic gain control part for gain controlled amplification control; the automatic gain control part is connected with the ground-air coupled antenna and the main control subsystem, and an amplified signal generated by the automatic gain control part is input into the ADC ...

Подробнее
26-05-2005 дата публикации

System for visualizing images to viewers in motion

Номер: US2005110960A1
Автор: MAO XIAOGANG, HU LIYA
Принадлежит:

A system for visualizing one or more images to one or more viewers in motion, comprises: (a) an extended span of screen; (b) a sequence of projectors mounted along the said screen ( 13 ); (c) means for receiving a series of at least one original images; and (d) means for dividing the frame of each image in the said series of original images into a number of sub-images and shifting the dividing lines on the frame of each image, frame by frame, according to a function of the moving velocity of the said viewers, such that the said series of original images are split into a number of series of shifted sub-images; and (e) means for projecting each series of said shifted sub-images on the said screen separately by one of the corresponding said projectors, such that one or more complete images are displayed on the said screen, and the display positions move on the said screen according to a function of the velocity of the said viewers.

Подробнее
12-05-2023 дата публикации

Mountain slope survey data two-stage fusion method based on gradient decision tree

Номер: CN116108399A
Принадлежит:

The invention discloses a mountain slope survey data two-stage fusion method based on a gradient decision tree, and the method comprises the following steps: S1, processing mountain slope survey data, carrying out the unified standardization of the data according to data structure features, and constructing a survey data feature unified standardization characterization method; s2, associating complementary geophysical field attribute features with slope body space geometric features, and realizing shallow-layer initial fusion of survey data; s3, exploring potential spatial characteristics of high-dimensional data and potential apparent characteristics of low-latitude data; s4, combining the data obtained in the S2 to realize deep feature fusion of the mountain slope survey data; and S5, optimizing data, improving data fusion efficiency and precision, and realizing multistage hierarchical intelligent fusion of mountain slope survey data. According to the method, the intelligent analysis ...

Подробнее
20-04-2011 дата публикации

Wet refractory mortar and preparation method thereof

Номер: CN0102020473A
Принадлежит:

The invention relates to a wet refractory mortar and a preparation method thereof. The wet refractory mortar comprises the raw materials in percentage by weight: 60-90% of main raw material of the refractory materials, 1-15% of micro powder, 0.5-5% of bentonite, 0.5-10% of soft clay, 0-5% of methylcellulose, 0-5% of dextrin, 0.05-0.5% of dispersing agent (admixture), 3-10% of glycerin (admixture), 0-5% of water-soluble poly-glyceride (admixture) and 5-25% of clean tap water (admixture). The preparation method comprises the following steps of: preparing the poly-glyceride glycerin solution; preparing the dry powdery semi-finished product; adding the clean tap water for wet mixing; adding the poly-glyceride glycerin solution to be mixed; packing hermetically by using plastic bags; packing hermetically by using hard plastic buckets; and storing and transporting in the cool. The refractory mortar of the invention is directly manufactured into finished products to effectively control the product ...

Подробнее
23-06-2023 дата публикации

Intelligent inspection robot for detecting tunnel water inrush disaster-caused structure based on electromagnetic waves

Номер: CN116299723A
Принадлежит:

The invention discloses an intelligent inspection robot for detecting a tunnel water inrush disaster-caused structure based on electromagnetic waves, and the robot comprises a carrying platform, a vehicle-mounted transient electromagnetic transmitting device, a vehicle-mounted transient electromagnetic receiving device, a vehicle-mounted ground penetrating radar transmitting antenna, and a vehicle-mounted ground penetrating radar receiving antenna. Wherein the vehicle-mounted transient electromagnetic transmitting device and the vehicle-mounted ground penetrating radar transmitting antenna are used for transmitting electromagnetic waves with different frequencies; the vehicle-mounted transient electromagnetic emission device is used for exciting a primary field of a target body; the vehicle-mounted transient electromagnetic receiving device is used for receiving a secondary field of a target body; the vehicle-mounted ground penetrating radar transmitting antenna is used for transmitting ...

Подробнее
23-06-2023 дата публикации

Airborne ground penetrating radar super-resolution imaging method based on differential interference technology

Номер: CN116299448A
Принадлежит:

The invention discloses an airborne ground penetrating radar super-resolution imaging method based on a differential interference technology. The method comprises the following steps: S1, obtaining multi-scene ground penetrating radar imaging data as original image data of differential interference; s2, performing image registration on the image data, selecting a PS point, and accurately pairing positions of corresponding pixels in the main image and the auxiliary image; s3, performing conjugate multiplication on corresponding pixel values in the two accurately paired images to obtain a differential interferogram; s4, performing data noise reduction processing on noise in the differential interferogram to obtain a filtered differential interferogram; s5, performing phase unwrapping on the filtered differential interferogram to obtain an interferogram subjected to phase unwrapping; and S6, carrying out full waveform inversion on the interferogram after phase unwrapping, and generating a ...

Подробнее
02-01-2007 дата публикации

System for visualizing images to viewers in motion

Номер: US0007156519B2
Принадлежит: Xiaogang Mao, MAO XIAOGANG, HU LIYA

A system for visualizing one or more images to one or more viewers in motion, comprises: (a) an extended span of screen; (b) a sequence of projectors mounted along the screen; (c) at least one device for receiving a series of images; and (d) a computer for dividing the frame of each image in the series of images into a number of sub-images and shifting the dividing lines on the frame of each image, frame by frame, according to a function of the moving velocity of the viewers, such that the series of images are split into a number of series of shifted sub-images; and (e) projectors for projecting each series of the shifted sub-images on the screen separately by one of the corresponding projectors, such that the images are displayed on the screen, and the display positions move on the screen according to a function of the velocity of the viewers.

Подробнее
04-05-2011 дата публикации

Ventilation top water gap for continuous casting tundish and preparation method thereof

Номер: CN0102039404A
Принадлежит:

The invention relates to a ventilation top water gap for a continuous casting tundish and a preparation method thereof. The ventilation top water gap comprises two parts: a ventilation core formed by internal mechanical pressing and a dense piece formed by external pouring, wherein a slit type air chamber formed after combustible materials are burnt is arranged between the ventilation core and the dense piece; the ventilation core comprises the following raw materials in percentage by mass: 8-15% of corundum materials, 80-83% of corundum materials, 5-10% of other additives and 3-4.5% of binding agents; the dense piece comprises sub-white corundum and white corundum or magnesium aluminate spinel and corundum materials; the ventilation core is integrated with the dense piece after being fired; and the air chamber is connected with argon gas through a metal pipe. The water gap prepared by the invention has simple processes, lower cost and good air permeability, and the adhesion and deposition ...

Подробнее
06-06-2023 дата публикации

Human and unmanned aerial vehicle group gesture, hand shape and voice cooperative multi-mode interactive sensing method

Номер: CN116225212A
Принадлежит:

The invention discloses a human and unmanned aerial vehicle group gesture, hand shape and voice cooperative multi-mode interactive perception method. The method comprises the following steps: step 1, constructing a human and unmanned aerial vehicle group interaction voice recognition model; step 2, constructing a gesture recognition model for interaction between the person and the unmanned aerial vehicle group; and step 3, constructing an interaction framework based on voice and gesture dual-model autonomous identification cluster formation cooperative control, inputting three pieces of interaction channel information of a hand shape, a posture and voice to obtain gesture and voice command actions, and adopting a channel fusion implementation mechanism based on dual-channel switching to realize multi-modal interaction in the interaction framework. According to the invention, the multi-modal interaction between the person and the unmanned aerial vehicle group is realized by constructing ...

Подробнее
09-06-2023 дата публикации

Full-aviation electromagnetic sensing coil area adjustment self-adaptive system controlled by power-on sensing

Номер: CN116243391A
Принадлежит:

The invention discloses a power-on sensing control full-aviation electromagnetic sensing coil area adjustment self-adaptive system, which comprises a high-sensitivity control module and a high-performance sensing coil, and is characterized in that the high-sensitivity control module is composed of an F-S calculation control module and a single-chip microcomputer control module; the F-S calculation control module determines an area demand value of a transmitting coil and realizes acquisition of an initial digital signal; the single-chip microcomputer control module converts and corrects the digital signal transmitted by the F-S calculation control module, and transmits the tension information to the high-performance sensing coil. The high-performance sensing coil is composed of a double-layer concentric auxiliary coil, a tension-sensitive resistor, an induction coil and a tension controller, the tension-sensitive resistor is connected with the concentric auxiliary coil, the induction coil ...

Подробнее
09-06-2023 дата публикации

Slope sliding surface identification method based on air-sky-ground multi-source heterogeneous monitoring data

Номер: CN116244661A
Принадлежит:

The invention discloses a slope sliding surface identification method based on air-sky-ground multi-source heterogeneous monitoring data, and the method comprises the following steps: S1, building a keyword table of the slope air-sky-ground multi-source heterogeneous monitoring data, and carrying out the data recognition and classification; s2, removing and filtering redundant information and error data in the space-space-ground multi-source heterogeneous monitoring data of the side slope; s3, carrying out data dimension reduction on the space-space-ground multi-source heterogeneous monitoring data of the side slope; and S4, extracting a statistical feature vector and a time sequence feature vector of the space-space-ground multi-source heterogeneous monitoring data of the side slope, performing multi-source data feature fusion on the statistical feature vector and the time sequence feature vector, and using the fused feature vector as an input of a machine learning method to realize modeling ...

Подробнее
28-01-2015 дата публикации

Ladle refining auxiliary argon blowing apparatus

Номер: CN104313248A
Принадлежит:

The invention relates to an auxiliary argon blowing apparatus, and concretely relates to a ladle refining auxiliary argon blowing apparatus. The apparatus comprises a metal gas tube A (1), a steel sleeve (2), a metal cover plate A (4), metal tubes (13), air bricks (6), a refractory castable (7) and metal gas tubes B (11), the upper portion in the refractory castable is provided with the metal tubes, the lower portion in the refractory castable is provided with the air bricks, the metal tubes are connected with the air bricks through the metal gas tubes B, the steel sleeve A is coated on the upper end surface and the upper portion outer rim surface of the refractory castable, the upper portion of the steel sleeve A is provide with the metal cover plate A, the upper portion of the metal cover plate A is provided with the metal gas tubes A respectively connected with the metal tubes, and a gas chamber A (5) is arranged between the metal cover plate A and the steel sleeve A. The apparatus effectively ...

Подробнее
11-11-2015 дата публикации

Tank car charge and discharge rubber lined hose pressure resistance test installation

Номер: CN0204758400U
Принадлежит:

The utility model discloses a tank car charge and discharge rubber lined hose pressure resistance test installation, including experimental water tank and switch board, be fixed with two at least hose nipple on the experimental water tank lateral wall, hose nipple's both ends are located the both sides of experimental water tank lateral wall respectively, and hose nipple has an air supply through the air supply union coupling, still be provided with air supply control valve and bleed valve on the air supply pipe. This device is including pressure resistance test installation and switch board, and the withstand voltage test air supply derives from a gas holder of 5 cubes or an air pump, and through air duct connect to compression test device, the computer of the control of device such as pressure sensor, control valve, camera in by the switch board is through controller control.

Подробнее
03-12-2014 дата публикации

Furnace bottom ramming material of RH refining furnace

Номер: CN104177102A
Принадлежит:

The invention relates to a furnace bottom ramming material of an RH refining furnace. The furnace bottom ramming material consists of a dry material and an additional anchoring agent, wherein the dry material consists of the following components in percentage by weight: 70-80% of fused magnesite, 5-10% of magnesia-alumina spinel, 1-5% of Al2O3 micro-powder and 1-10% of metal powder, wherein the fused magnesite and the magnesia-alumina spinel are refractory aggregates, the Al2O3 micro-powder and the metal powder are refractory powder, the anchoring agent is an inorganic salt, and the addition amount of the anchoring agent is 1-5% of the weight of the dry material. A preparation method of the furnace bottom ramming material comprises the following steps: preparing various raw materials according to formula requirements, and preparing a dry-powder material in a forced stirring machine; putting the uniformly mixed material into a moisture-proof woven bag; storing and transporting the material ...

Подробнее
13-04-2011 дата публикации

Heating furnace mending material and preparation method thereof

Номер: CN0102010212A
Принадлежит:

The invention relates to a heating furnace mending material and a preparation method thereof in the field of refractory materials. The heating furnace mending material is prepared by uniformly mixing 2 to 20 weight percent of sodium silicate and/or sodium metasilicate serving as a bonding agent, 97 to 80 weight percent of corundum, bauxite or mullite serving as a main raw material, and 0.5 to 8 weight percent of silica micropowder, alumina micropowder or bauxite micropowder serving as a sintering aid. The mending material has the advantages that: 1, the addition of water is avoided, namely, the mending material can be used for dry mending, so the influence of factors, such as maintenance, baking and the like, on the performance of the mending material is avoided; 2, the mending is simple and convenient to construct without stopping a furnace, namely, the mending material can be spread for furnace mending at normal temperature and thrown for the furnace mending at high temperature; 3, the ...

Подробнее
03-04-2002 дата публикации

Process for preparing cement

Номер: CN0001342620A
Принадлежит:

A process for preparing cement includes such steps as grinding clinker, proportionally mixing it with other raw materials, and homogenizing. Its advantages include no need of crushing, grinding and calcining, raising utilization rate of waste industrial dregs, no environmental pollution, low cost, and high quality of product.

Подробнее
30-05-2023 дата публикации

Device for measuring slope deformation in real time based on ultra-weak fiber grating array sensing system

Номер: CN116182726A
Принадлежит:

The invention discloses a device for measuring slope deformation in real time based on an ultra-weak fiber bragg grating array sensing system, which comprises a data acquisition and transmission system, an ultra-weak fiber bragg grating demodulation system, an ultra-weak fiber bragg grating optical cable and a wire coil, the data acquisition and transmission system is used for processing wavelength signals, grating strain and temperature data at different spatial positions to obtain the change of the strain temperature of the slope, and is connected with an external network; the ultra-weak fiber grating demodulation system is used for transmitting, receiving and demodulating pulse signals and transmitting data; the data acquisition and transmission system is connected with the ultra-weak fiber bragg grating demodulation system, the ultra-weak fiber bragg grating demodulation system is connected with one end of the ultra-weak fiber bragg grating optical cable, the other end of the ultra-weak ...

Подробнее
06-06-2023 дата публикации

Slope risk assessment method based on Bayesian hierarchical space-time model

Номер: CN116227162A
Принадлежит:

The invention discloses a slope risk evaluation method based on a Bayesian hierarchical spatial-temporal model, which comprises the following steps: establishing a regional geological FEM model in time and space dimensions based on remote sensing data by using the Bayesian hierarchical spatial-temporal model, and analyzing spatial-temporal distribution and dynamic change characteristics of the model in real time; and the environmental change of the region is comprehensively and thoroughly analyzed, and the geological disaster risk of the region is evaluated. The method mainly aims at time and space change trends of geological disasters such as landslide, a multi-level Bayesian space-time model part is added in a traditional evaluation model, a space-time algorithm model composed of factors high in geological disaster correlation is constructed and embedded into a multi-level Bayesian hierarchical space-time model, an existing geological disaster system is fused, and the geological disaster ...

Подробнее
12-05-2023 дата публикации

Expansive soil freezing process deformation decoupling method based on machine learning factor analysis

Номер: CN116108325A
Принадлежит:

The invention discloses an expansive soil freezing process deformation decoupling method based on machine learning factor analysis, and the method comprises the steps: putting a manufactured soil sample into a frost heaving testing machine, and measuring various parameter changes in a temperature reduction soil sample freezing process; and importing the obtained data into MATLAB, and obtaining volume increment or volume decrement caused by volume ice content change and unfrozen water volume water content change by utilizing ICA and a regression fitting algorithm program in the MATLAB. According to the method, on the premise that volume increase caused by freezing of water into ice and volume reduction caused by water loss and shrinkage of soil particles of the expansive soil exist in the freezing process of the expansive soil, volume changes caused by water freezing and water loss of the soil particles are obtained respectively. According to the method, machine learning factor analysis ...

Подробнее
23-04-2014 дата публикации

Fire-resistant self-flow castable

Номер: CN103739299A
Принадлежит:

A fire-resistant self-flow castable relates to the field of fire-resistant materials, and is composed of, in parts by weight, 60-85 parts of a fire-resistant main material, 5-20 parts of alumina micro powder, 3-10 parts of pure aluminate cement, 3-10 parts of an expanding agent, 0-3 parts of fine silicone powder, and a water reducer accounting for 0.1-0.5% by weight of the above compositions, wherein the fire-resistant main material is one or two of corundum and alumina, the expanding agent is one or more of fused magnesia, kyanite and quartz sand, and the water reducer is one or more of polyethylene glycol, polycarboxylate water reducers and dispersive alumina. According to the fire-resistant self-flow castable, based on reasonable distribution of granules and fine powders in the castable, by choosing appropriate water reducer, additives and other components, the fluidity of the self-flow castable is substantially improved, and a casted body is reduced in porosity and improved in strength ...

Подробнее