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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 14. Отображено 14.
28-11-2012 дата публикации

Method and device for producing high-grade highway protective guard framework material polyester industrial yarn

Номер: CN102797060A
Принадлежит:

The invention relates to a method and a device for producing a high-grade highway protective guard framework material polyester industrial yarn, and in particular relates to a method and a device for producing the polyester industrial yarn through additionally arranging a passive outer circular blowing device. The production technological process comprises hyper viscous slicing-threaded rod fusing-fondant delivering through a pipeline-thermally insulating with a spinning manifold-accurately metering with a metering pump-spinning-thermally insulating with a rear heater-windless area slow cooling-cross air blow cooling-oiling with two oil wheels-godet-yarn path stabilizing with a pretension roller-pre-interlacing uniformly oil mixing-drawing-heat setting-stranding-interlacing beating-winding and forming, wherein the rear heater and the windless area are arranged into passive outer circular blowing pre-cooling; and the passive outer circular blowing pre-cooling refers to air natural cooling ...

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01-08-2012 дата публикации

Polyester industrial yarn solid-phase polymerization flame-retarding chain extender and preparing method thereof

Номер: CN102617840A
Принадлежит:

The invention provides a polyester industrial yarn solid-phase polymerization flame-retarding chain extender, which mainly comprises a double-end-group benzoic acid anhydride group serving as a chain extension group and a flame-retarding group containing phosphorus. Two acid anhydrides in a molecule can be used for reacting with hydroxyl in dacron molecules so that intrinsic viscosity of dacron is improved. Simultaneously, phosphorus is introduced into the molecule structure so that flame-retarding performance of dacron is improved. The invention further relates to a preparing method of the polyester industrial yarn solid-phase polymerization flame-retarding chain extender, which includes: (1) dissolving PCl3 into mixed solvent of CHCl3/(CH3CH2O)2, dropwise adding 3-hydroxy phthalic anhydride solution dissolved in the mixed solvent of CHCl3/(CH3CH2O)2, and performing heat preservation backflow reaction at certain temperature; and (2) evaporating a part of solvent at certain temperature ...

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24-10-2012 дата публикации

Hybrid drill bit

Номер: CN102747960A
Принадлежит:

The invention relates to a hybrid drill bit for petroleum, natural gas and geological drilling. The hybrid drill bit comprises a drill bit body, wherein a cutter wing and a roller cone are arranged on the drill bit body, cutting teeth are arranged on the cutter wing, the roller cone is connected with the drill bit body through a cone leg, and the hybrid drill bit is characterized in that the roller cone is a disk type roller cone. A cutting element on the disk type roller cone is shaped like a disk cutter or an intermittent disk cutter. The patent disclosed by the invention has the beneficial effects that, 1) the scraping motion of a diamond drill bit and the rolling motion of a disk type roller cone drill bit are combined for realizing precrushing at the bottom of a well, thereby ensuring that the diamond cutting teeth can effectively bite rock, eliminating the stick-slip phenomenon of the drill bit in some special formations and the probability of impact disrepair of a polycrystalline ...

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09-08-2016 дата публикации

Tricone rock bit for horizontal wells and hard formation wells

Номер: US0009410378B2

A tricone rock bit for horizontal wells and hard formation wells includes three head sections and three cones arranged at the lower ends of the head sections, where the supper parts of the three head sections are connected together to form one integrated drill bit body; jet nozzle bosses are arranged between the head sections on the drill bit body; jet nozzles are mounted in nozzle holes of the jet nozzle bosses; gauge cutting elements are arranged on the top rear of the OD of the head sections, forming a gauge surface on the top of the head sections; the front face of the head sections is a ruled surface, inclining backwards at an angle α, and inclining outwards at an angle β. The tricone rock bit has low lateral vibrations, high stability, good effects of bottom hole cleaning and cutting element cooling, long service life and high penetration rate.

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02-03-2017 дата публикации

CONTRAST MEDIUM UPTAKE TIME COMPUTATION USING MAGNETIC RESONANCE IMAGING

Номер: US20170061613A1
Принадлежит: University of Chicago

A computing device determines a contrast medium uptake time using magnetic resonance imaging data. Image data constructed from data generated by a magnetic resonance imaging (MRI) machine of a subject is read. A representation computed from the read image data is presented on a display device. Baseline artery locations identified within the presented representation that are associated with a baseline artery are received. A first time-of-arrival (TOA) of contrast medium into the baseline artery is determined using the received baseline artery locations and the read image data. For a plurality of locations within the read image data excluding the baseline artery locations, a second TOA of the contrast medium into a respective location relative to the determined first TOA is determined using the read image data, and the determined second TOA is stored in association with the respective location to assist in lesion identification for the subject.

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03-04-2013 дата публикации

Mixed drilling bit with enhanced core part cutting function

Номер: CN103015899A
Принадлежит:

The invention relates to a mixed drilling bit with an enhanced core part cutting function used for petroleum, natural gas and geology drilling. The mixed drilling bit comprises a drilling bit body, wherein cutter wings and a spray nozzle are arranged on the drilling bit body, the outline of the cutter wings is divided into a core part, an inner cone, a nose part, a shoulder part and a diameter maintaining part from inside to outside, fixed cutting teeth are arranged at the inner cone, the nose part, the shoulder part and the diameter maintaining part of the outline of the cutter wings on the cutter wings, a tooth palm is arranged between the cutter wings, the upper end of the tooth palm is connected into a whole with the drill bit body, the lower end of the tooth palm is provided with a tooth wheel, and tooth wheel cutting teeth are arranged on the tooth wheel. The mixed drilling bit is characterized in that the core part of the lower end of the drilling bit body is provided with the movable ...

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01-05-2014 дата публикации

Tricone rock bit for horizontal wells and hard formation wells

Номер: US20140116787A1
Принадлежит: Kingdream PLC

A tricone rock bit for horizontal wells and hard formation wells includes three head sections and three cones arranged at the lower ends of the head sections, where the supper parts of the three head sections are connected together to form one integrated drill bit body; jet nozzle bosses are arranged between the head sections on the drill bit body; jet nozzles are mounted in nozzle holes of the jet nozzle bosses; gauge cutting elements are arranged on the top rear of the OD of the head sections, forming a gauge surface on the top of the head sections; the front face of the head sections is a ruled surface, inclining backwards at an angle α, and inclining outwards at an angle β. The tricone rock bit has low lateral vibrations, high stability, good effects of bottom hole cleaning and cutting element cooling, long service life and high penetration rate.

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19-07-2018 дата публикации

An ultra-low shrinkage polyester industrial yarn and its preparation method

Номер: US20180202078A1
Принадлежит: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

The present invention discloses an ultra-low shrinkage polyester industrial yarn and its preparation method. The ultra-low shrinkage polyester industrial yarn is prepared by subjecting a polyester to dissolution, washing and solid state polycondensation followed by spinning. The ultra-low shrinkage polyester industrial yarn has a dry heat shrinkage rate of 1.8±0.25% under test conditions of 177° C.×10 min×0.05 cN/dtex. The polycondensation catalyst consists of magnesium ethylene glycol and antimony ethylene glycol, has a small thermal degradation coefficient. The present invention reduces oligomers during polymerization, reduces thermal degradation during processing, and as a result the invention greatly reduces impurities and nucleating agent in the polyester, leading to an increase in the probability of homogeneous nucleation based on the reduction of heterogeneous nucleation. The dissolution and washing of polyester further decreases oligomer content, facilitating the growth of the grain size and the optimization of crystal perfection in the ultra-low shrinkage polyester industrial yarn. 1. An ultra-low shrinkage industrial yarn having a dry heat shrinkage rate of 1.8±0:25% , under the testing condition of 177° C.×10 min×0.05 cN/dtex wherein the ultra-low shrinkage industrial yarn is obtained by the following process: subjecting the polyester to dissolution , washing and solid state tackifying followed by spinning , esterification of terephthalic acid and ethylene glycol and the polycondensation catalysed by a mixture of magnesium ethylene glycol and antimony ethylene glycol followed by granulation ,wherein the carboxyl end group is less than 15 mol/t, the mass percentage of oligomer is lower than 0.5%, and weight percentage of diethylene glycol is lower than 0.5%;{'sub': 2', '2', '2, 'wherein the molecular formula of magnesium ethylene glycol is Mg(OCHCHOH);'}wherein the dissolution and washing refers to that the granulated slices are scoured and washed with ...

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25-06-2020 дата публикации

The high-uniformity coloured polyester industrial yarn

Номер: US20200199788A1
Принадлежит: Jiangsu Hengli Chemical Fiber Co Ltd

A high uniformity coloured polyester industrial yarn and preparation method. The raw material of the high-uniformity coloured polyester industrial yarn is the modified polyester composed of terephthalic acid segment, an ethylene glycol segment and a branched diol. The high-uniformity coloured polyester industrial yarn is prepared by esterification reaction of terephthalic acid with a branched diol using concentrated sulfuric acid as catalyst to obtain terephthalic acid glycol ester. Terephthalic acid and ethylene glycol are formulated to carry out esterification reaction to obtain ethylene terephthalate. Finally, stir and mix the two materials and carry out the polycondensation reaction in the low vacuum stage and the high vacuum stage under the action of the catalyst and the stabilizer to obtain modified polyester. Measure the modified polyester and add black masterbatch. After porous spinneret extrusion, cooling, oiling, drawing, heat setting and winding the modified polyester, high uniformity coloured polyester industry yarn is obtained.

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24-11-2022 дата публикации

CANCER DETECTION BASED ON FOUR QUADRANT MAPPING AND MATRIX ANALYSIS OF IMAGE DATA

Номер: US20220375082A1
Принадлежит:

A diagnostic system to analyze imaging data includes a memory configured to store hybrid imaging data of a tissue sample. The system also includes a processor operatively coupled to the memory and configured to generate a four quadrant plot based on the hybrid imaging data. Each point in the four quadrant plot corresponds to an image voxel of the tissue sample. The processor is also configured to determine one or more angle values and one or more distance values for image voxels in the four quadrant plot. The processor is further configured to identify one or more characteristics of the tissue sample based at least in part on the one or more angle values and the one or more distance values. The processor is further configured to perform a matrix analysis of the data, which can be used to identify the one or more characteristics of the tissue sample. 1. A diagnostic system to analyze imaging data comprising:a memory configured to store hybrid imaging data of a tissue sample; and generate a four quadrant plot based on the hybrid imaging data, wherein each point in the four quadrant plot corresponds to an image voxel of the tissue sample;', 'determine one or more angle values and one or more distance values for image voxels in the four quadrant plot; and', 'identify one or more characteristics of the tissue sample based at least in part on the one or more angle values and the one or more distance values., 'a processor operatively coupled to the memory and configured to22. The system of claim 1 , further comprising a magnetic resonance imaging system configured to generate the hybrid imaging data claim 1 , wherein the hybrid imaging data includes both T-weighted imaging data and diffusion-weighted imaging data corresponding to the tissue sample.3. The system of claim 1 , wherein the processor is configured to generate claim 1 , based on the hybrid imaging data claim 1 , a matrix of b-values and echo time (TE) values associated with each image voxel in the four quadrant ...

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30-01-2010 дата публикации

Tri-cone bits for horizontal and hard formation drilling applications

Номер: CA2674716A1
Принадлежит: Kingdream PLC

The present invention discloses a tri-cone drill bit comprising: three head sections with upper parts thereof jointed together to form a bit body, three cones rotatablely mounted to lower ends of the head sections respectively, nozzle sockets designed on the bit body between respective head sections and each having a hole in which a nozzle is mounted, wherein gage cutters are mounted to an upper trailing side of each head O.D. surface to form a gage holding surface thereon, and a leading side of each head section is backwardly slanted as a whole. The design of gage surface at trailing sides of head sections increases the bit's stability, reduces lateral vibration and also reduces tendency of bit deflection in horizontal drilling applications and effective working life of the bit is improved. Backward slant of leading sides of head sections facilitates upward carrying of drilling cuttings and improves drilling efficiency. Jets from the nozzles are respectively directed to the leading side of each following cone, which enhances bottom hole cleaning and cooling of cutting elements and leads to a longer working life and higher ROP of the bit.

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20-05-2021 дата публикации

Cancer detection based on four quadrant mapping and matrix analysis of image data

Номер: WO2021096946A1
Принадлежит: The University of Chicago

A diagnostic system to analyze imaging data includes a memory configured to store hybrid imaging data of a tissue sample. The system also includes a processor operatively coupled to the memory and configured to generate a four quadrant plot based on the hybrid imaging data. Each point in the four quadrant plot corresponds to an image voxel of the tissue sample. The processor is also configured to determine one or more angle values and one or more distance values for image voxels in the four quadrant plot. The processor is further configured to identify one or more characteristics of the tissue sample based at least in part on the one or more angle values and the one or more distance values. The processor is further configured to perform a matrix analysis of the data, which can be used to identify the one or more characteristics of the tissue sample.

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20-09-2021 дата публикации

Hilado industrial de poliéster coloreado de alta uniformidad y su método de preparación

Номер: ES2854075T3
Принадлежит: Jiangsu Hengli Chemical Fiber Co Ltd

Un método para preparar un hilo industrial de poliéster coloreado de alta uniformidad, en el que un poliéster modificado es sometido a policondensación en fase sólida, dosificación y adición de lote maestro negro; comprendiendo dicho método: realizar una extrusión utilizando un hilador poroso; y después de dicha extrusión por hilador poroso, enfriar, engrasar, estirar, termofijar y bobinar, para obtener un hilo industrial de poliéster coloreado de alta uniformidad; en el que dicho hilador comprende una pluralidad de orificios; en el que la disposición de dicha pluralidad de orificios en dicho hilador poroso es elíptica; siendo dicha disposición elíptica que el centro de cada orificio de dicha pluralidad de orificios está ubicado en una elipse concéntrica, y la elipse concéntrica es una de una serie de elipses, y los ejes largos de todas las elipses están dispuestos a lo largo de una línea, y los ejes cortos son colineales; en el que el proceso de preparación del poliéster modificado incluye las siguientes etapas: (1) preparación de glicol éster de ácido tereftálico: mezclar ácido tereftálico y un diol ramificado en una primera suspensión y llevar a cabo una primera reacción de esterificación bajo la acción catalítica de ácido sulfúrico concentrado para obtener un glicol éster de ácido tereftálico; refiriéndose dicho diol ramificado a un diol que tiene una cadena ramificada que es un carbono no terminal en el segmento de dioles y una cadena ramificada que tiene una cadena de carbono lineal de 5 a 10 átomos de carbono; (2) preparación de tereftalato de etileno: mezclar el ácido tereftálico y el etilenglicol en una segunda suspensión y llevar a cabo una segunda reacción de esterificación para obtener tereftalato de etileno; (3) preparación de poliéster modificado: después de que se complete la segunda reacción de esterificación en dicha etapa (2), agregar el glicol éster de ácido tereftálico preparado en dicha etapa (1), agitar y mezclar, ejecutar la reacción de ...

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15-05-2018 дата публикации

Contrast medium uptake time computation using magnetic resonance imaging

Номер: US09972089B2
Принадлежит: University of Chicago

A computing device determines a contrast medium uptake time using magnetic resonance imaging data. Image data constructed from data generated by a magnetic resonance imaging (MRI) machine of a subject is read. A representation computed from the read image data is presented on a display device. Baseline artery locations identified within the presented representation that are associated with a baseline artery are received. A first time-of-arrival (TOA) of contrast medium into the baseline artery is determined using the received baseline artery locations and the read image data. For a plurality of locations within the read image data excluding the baseline artery locations, a second TOA of the contrast medium into a respective location relative to the determined first TOA is determined using the read image data, and the determined second TOA is stored in association with the respective location to assist in lesion identification for the subject.

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