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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 30. Отображено 30.
05-02-2021 дата публикации

混合入光式背光模组及液晶显示装置

Номер: CN107422531B
Автор: 国扬, 邹文聪, 沈思宽, 郭黎明, 黄丹, 郑波, 张小芳
Принадлежит: 深圳创维-RGB电子有限公司

... 本发明公开一种混合入光式背光模组及液晶显示装置，其中，所述混合入光式背光模组包括背板和导光板，所述背板包括底板及自底板的周缘朝一侧延伸的侧板；所述导光板间隔设置在底板上方，且围设于侧板内；所述底板的内侧面设有底背光源，所述侧板的内侧面设有侧背光源。通过侧入式和直下式的结合可以增加背光模组的背光源来源，从而可以增大背光模组的亮度的最大阀值，即可以使背光模组输出更高的亮度，从而可以提高液晶显示装置屏幕的最大亮度。而液晶显示装置屏幕的最大亮度的提高，可以使液晶显示装置获得更高的对比度，从而可以获得更多的动态变化的背光效果，从而更好的呈现HDR。 ...

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Номер записи: 1
12-03-2020 дата публикации

PREPARATION METHOD FOR CROSSLINKED VISCOSITY-REDUCING POLYCARBOXYLIC ACID WATER REDUCER

Номер: WO2020048083A1
Автор: ZHONG, Lina, FANG, Yunhui, LAI, Huazhen, KE, Yuliang, ZHANG, Xiaofang, LIN, Yanmei, LI, Geli, LAI, Guangxing
Принадлежит:

A preparation method for a crosslinked viscosity-reducing polycarboxylic acid water reducer, comprising the following steps: (1) preparing an esterified monomer; (2) performing a copolymerization reaction; and (3) performing a neutralization reaction. The crosslinked viscosity-reducing polycarboxylic acid water reducer is prepared from the copolymerization of the following components: esterified monomers prepared by esterification reactions of an allyl alcohol monomer with 2-phosphonobutane-1,2,4-tricarboxylic acid, which comprise a product obtained by esterifying one carboxyl group in 2-phosphonobutane-1,2,4-tricarboxylic acid and a small amount of products obtained by esterifying two carboxyl groups and esterifying three carboxyl groups in the 2-phosphonobutane-1,2,4-tricarboxylic acid, a polyether macromonomer, 2-methacryloyloxyethyl choline phosphate and an unsaturated acid, so that said polymer has a lightly crosslinked structure while a phosphate, a carboxylate, a quaternary ammonium ...

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Номер записи: 2
28-06-2018 дата публикации

MAP DATA SYSTEM, METHOD FOR GENERATING AND USING SAME, AND APPLICATION THEREOF

Номер: WO2018113451A1
Автор: LIN, Dede, FAN, Chenxing, FENG, Jinglin, ZHANG, Xiaofang
Принадлежит:

A map data system, a method for generating and using the same, and an application thereof, the map data system comprising: raster image data, the raster image data comprising at least one picture and description information of the picture, wherein the description information comprises at least one element contained in the picture and an element attribute of the element; in the picture, the element and an element attribute are characterized by means of a color value or a gray scale of a pixel. The map data system may achieve accurate navigation and automatic driving; the raster image data also has the advantages of easy processing, a weak topological correlation between pictures, easy data segmentation and local updating, and supporting GPU parallel computing when the amount of data is particularly large, thereby improving driving safety and reducing the difficulty and costs of developing other technologies such as image recognition, sensors, central control, and the like.

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Номер записи: 3
24-04-2014 дата публикации

COMPATIBLE DEVICE FOR SIM CARD AND RELATED TERMINAL

Номер: WO2014059818A1
Автор: ZHANG, Xiaofang
Принадлежит:

A compatible device for an SIM card and a related terminal. The compatible device comprises: a second card slot and a first card slot rotationally connected with the second card slot; wherein a card insertion area is arranged in the second card slot, and the card insertion area is provided thereon with a plurality of parallel metal elastic pins; a first SIM card is inserted into fillets at two sides of the first card slot, and when the first card slot buckles on the second card slot in a matching mode, the first SIM card is in contact with the metal elastic pins; and an elastic stop device joined to a second SIM card in shape is arranged on the periphery of the card insertion area in the second card slot, the elastic stop device is used for arranging the second SIM card, and when the first card slot buckles on the second card slot in a matching mode, the second SIM card is in contact with the metal elastic pins. By means of the device, installation of the first SIM card and the second SIM ...

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Номер записи: 4
07-05-2020 дата публикации

LONG-ACTING SUSTAINED-RELEASE POLYCARBOXYLIC ACID SET-RETARDING AGENT AND PREPARATION METHOD THEREFOR

Номер: WO2020087866A1
Автор: LAI, Guangxing, FANG, Yunhui, WEN, Qingru, LAI, Huazhen, LI, Geli, KE, Yuliang, ZHONG, Lina, ZHANG, Xiaofang, DU, Kelu, ZHANG, Bingwang
Принадлежит:

Disclosed are a long-acting sustained-release polycarboxylic acid set-retarding agent and a preparation method therefor, the method comprising the following steps: (1) esterification: reacting methacrylic acid, saturated acid and 3-bis (2-hydroxyethyl) amino-2-hydroxypropanesulfonic acid under the action of a catalyst to obtain unsaturated esterified small monomers; (2) putting cumenyl polyoxyethylene ether, unsaturated monocarboxylic acid, diethyl 3-butenylphosphonate, etc. in a substrate material, and then, separately dropping a photoinitiator (a first solution), a chain transfer agent, an unsaturated monocarboxylic acid, an unsaturated esterified small monomer, and an unsaturated carboxylate (a second solution) dissolved in deionized water to the substrate material for reaction and polymerization; and (3) after the heat preservation is completed, adding a pH adjusting solution for neutralization to obtain the product. The set-retarding agent prepared by the present invention has a good ...

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Номер записи: 5
25-02-2016 дата публикации

LOW-TEMPERATURE METHOD FOR PREPARING HIGH-ADAPTABILITY ETHER POLYCARBOXYLIC ACID WATER REDUCER

Номер: WO2016026346A1
Автор: FANG, Yunhui, JIANG, Zhuojun, KE, Yuliang, LIN, Yanmei, SU, Jinsheng, ZHONG, Lina, ZHANG, Xiaofang, CHEN, Xiaolu, GUO, Xinqi, LIN, Tianxing
Принадлежит:

Disclosed is a low-temperature method for preparing high-adaptability ether polycarboxylic acid water reducer. The method comprises the following steps: formulating unsaturated carboxylic acid, unsaturated sulfonate, unsaturated phosphonic acid, a chain transfer agent and water into a mixed solution A; formulating reducing agent C and water into a mixed solution B; adding unsaturated polyoxyethylene ether, buffering agent and water into a reaction vessel; adjusting the reaction temperature to 10-40 ℃, adding an oxidant at one time, and dissolving by stirring; respectively and simultaneously dropping the mixed solution A and mixed solution B; at the end of the dropping, adding 0-0.5 parts of reducer D at one time, continuously reacting for 1-2 hours; and adding 10-20 parts of 30wt% sodium hydroxide solution to neutralize, thereby obtaining the polycarboxylic acid water reducer. The method of the present invention is simple. The prepared water reducer can have high dispersibility by low doping ...

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Номер записи: 6
04-04-2023 дата публикации

Computer hardware cooling box

Номер: CN115904044A
Автор: LYU HUAILIAN, ZHANG XIAOFANG, XU TING
Принадлежит:

The invention discloses a computer hardware cooling box which comprises a computer cooling case assembly, an air channel air inlet dust filtering assembly and a dust collecting assembly are fixedly arranged at the front end of an inner box body of the computer cooling case assembly, and the air channel air inlet dust filtering assembly forms a dust filtering structure of an air channel air inlet in the computer cooling case assembly. The dust collecting assembly is arranged behind the air channel air inlet dust filtering assembly, the dust collecting assembly forms a dust collecting structure in the computer cooling case assembly, a conical air inlet dust filtering screen rotates, a cleaning brush is matched with the conical air inlet dust filtering screen to naturally abut against the inner side face of the conical air inlet dust filtering screen, and through the rotation and abutting and tight abutting, the dust collecting structure is formed. By means of filtering of the conical air ...

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Номер записи: 7
23-06-2023 дата публикации

Intelligent defect elimination method for line loss acquisition abnormity of transformer area

Номер: CN116307523A
Автор: JIN XINRU, ZHANG JIAJIE, FAN JIA, ZHANG WENBO, WANG LANQING, NI YING, WANG YUEQIANG, WONG YEUNG, CHEN FANGZHOU, ZHANG XIAOFANG, ZHANG WEIYANG, NI XINGFEI, HAN XINMING, DU XINYANG
Принадлежит:

The invention provides an intelligent defect elimination method for line loss acquisition abnormity of a transformer area. The method is used for carrying out abnormity judgment and intelligent defect elimination on data of an electricity utilization information acquisition system of a low-voltage transformer area. Comprising the following steps: S1, carrying out abnormity judgment on data of an electricity utilization information acquisition system, and automatically generating an abnormal work order; s2, performing remote diagnosis and repair on abnormal problems of the abnormal work orders, archiving and clearing the abnormal work orders which are successfully subjected to remote repair, and taking the remaining abnormal work orders as field operation and maintenance work orders; s3, performing intelligent dispatching operation on the field operation and maintenance work order to generate a fine dispatching route scheme; and S4, based on the fine dispatching route scheme, operation and ...

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Номер записи: 8
07-04-2023 дата публикации

Intelligent infusion reminding system

Номер: CN115920172A
Автор: JIANG YINGSI, YIN XIUBI, ZHOU QIN, LIU JIE, XU HUIKUI, LUO XIAOYA, LIU GUANGYI, ZHANG QINGYI, ZHANG XIAOFANG, YE SHUANG
Принадлежит:

The invention relates to the technical field of medical instruments, and particularly discloses an intelligent infusion reminding system which comprises an infusion monitoring module, an infusion control module and a mobile displayer. The infusion control module comprises a controller, a driver and a liquid path adjuster, the liquid path adjuster comprises a fixing column and an outer sleeve sleeving the fixing column, an annular gap exists between the outer sleeve and the fixing column and is used for providing a placement space for an infusion tube, and a pressing strip is fixedly connected to the inner wall of the outer sleeve; the pressing strip can flatten the infusion tube to be tightly attached to the surface of the fixing column after the outer sleeve rotates, the driver is used for driving the outer sleeve to rotate, and the controller is used for controlling the driver to drive the outer sleeve to rotate to flatten the infusion tube to be in a non-circulation state after the infusion ...

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Номер записи: 9
02-07-2020 дата публикации

METHOD FOR PREPARING BLOCK SLOW-RELEASE CONCRETE ADMIXTURE

Номер: WO2020132809A1
Автор: FANG, Yunhui, KE, Yuliang, LAI, Guangxing, ZHONG, Lina, ZHANG, Xiaofang, GUO, Yuanqiang, LIN, Tianxing, WU, Meijuan, MA, Xiuxing
Принадлежит:

Disclosed is a method for preparing a block slow-release concrete admixture. The present invention utilizes aqueous solution free radical copolymerization, uses unsaturated monomers, initiators, chain transfer agents, and the like to prepare a block polymer by means of a two-step method, and has the advantages of good operability, an easy-to-control reaction process, low sensitivity to reaction conditions, and easy industrial production. By means of introducing polyether side chains of different types and lengths into a molecular side chain, it is possible to control the spatial configuration and degree of extension of concrete admixture in a concrete multi-phase system; by means of introducing carboxylic acid hydroxy ester, crosslinking monomer, and the like into a molecular backbone chain, it is possible to improve the lubricating effect and hydrophilic state of particles in multiple concrete systems, improving the slump retention of the concrete mixture, reducing the loss of concrete ...

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Номер записи: 10
28-04-2022 дата публикации

POLYCARBOXYLATE WATER REDUCER HAVING HIGH ADSORPTION AND MUD BLOCKING FUNCTIONS AND PREPARATION METHOD THEREFOR

Номер: WO2022082975A1
Автор: ZHU, Shaohong, LIN, Yanmei, LAI, Huazhen, FANG, Yunhui, KE, Yuliang, ZHONG, Lina, ZHANG, Xiaofang
Принадлежит:

A polycarboxylate water reducer having high absorption and mud-blocking functions and a preparation method therefor. The polycarboxylate water reducer comprises the following preparation raw materials: a modified polyether macromonomer, an unsaturated acid, a quaternary ammonium salt cationic monomer, a phosphate monomer, an unsaturated sulfonic acid group, an initiator, a chain transfer agent and a neutralizer. Said water reducer has good absorption and dispersion properties and mud blocking properties, can effectively enhance the adsorption capacity for cement particles, inhibit the influence of the mud content in gravel on adsorption and dispersion, and significantly improve the mud blocking capacity of the polycarboxylate water reducer, and thus helps to improve performance of concrete.

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Номер записи: 11
11-04-2023 дата публикации

High-timeliness low-voltage transformer area line loss prediction method

Номер: CN115952905A
Автор: JIN XINRU, ZHANG JIAJIE, FAN JIA, ZHANG WENBO, WANG LANQING, NI YING, WANG YUEQIANG, WONG YEUNG, CHEN FANGZHOU, ZHANG XIAOFANG, ZHANG WEIYANG, NI XINGFEI, HAN XINMING, DU XINYANG
Принадлежит:

The invention discloses a high-timeliness low-voltage transformer area line loss prediction method, which comprises the steps of transformer area electric quantity data extraction, acquisition failure user missing daily electric quantity transverse change value calculation, longitudinal change value calculation, weight factor calculation, acquisition failure user daily electric quantity complementation and transformer area comprehensive line loss rate calculation to realize T-1 low-voltage transformer area line loss prediction. According to the method, for transformer area acquisition abnormity, in combination with data such as a list of users failed in acquisition and historical electricity consumption of the users, the daily electricity quantity of the users failed in acquisition is fitted and complemented, the electricity quantity influenced by acquisition failure is estimated, transformer area daily line loss trial calculation is carried out, and a T-1 transformer area line loss early ...

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Номер записи: 12
04-07-2019 дата публикации

PREPARATION METHOD FOR HIGH SLUMP-RETENTION POLYCARBOXYLIC ACID WATER REDUCING AGENT

Номер: WO2019128690A1
Автор: KE, Yuliang, FANG, Yunhui, ZHONG, Lina, ZHANG, Xiaofang, LI, Geli, LAI, Guangxing, GUO, Yuanqiang, LIN, Tianxing, WU, Meijuan, MA, Xiuxing
Принадлежит:

The present invention discloses a preparation method for a high slump-retention polycarboxylic acid water reducing agent. Compared with conventional solution polymerization methods, the present invention adopts an initiation system combining a photoinitiator and a redox initiation system to increase reaction rates, has the advantages of high reaction speeds, high conversion rates, narrow molecular weight distributions, and low cost, is easy to operate and industrialize, and has broad application prospects. The prepared polycarboxylic acid water reducing agent has stable performance, and a molecular structure thereof is a comb structure in which a polar group is present in a main chain and a polyoxyethylene segment is present in a side chain to form a space barrier, so as to improve the dispersibility and dispersibility maintaining ability of cement and to achieve high slump retention.

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Номер записи: 13
10-02-2011 дата публикации

BUS ELECTRODES FOR UPPER SUBSTRATE OF PLASMA DISPLAY PANEL AND MANUFACTURING METHOD THEREOF

Номер: WO2011015023A1
Автор: ZHANG, Xiaofang, TANG, Cuizhen
Принадлежит:

Bus electrodes for an upper substrate of a plasma display panel and a manufacturing method thereof are provided. The bus electrodes comprise two straight strip electrodes (1,2), and there are protrusions on the discharging part of one(2) of the two straight strip electrodes(1,2).The problems of resistance increasing, ignition voltage rising and unstable working state caused by narrow bus electrodes can be solved.

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Номер записи: 14
02-01-2020 дата публикации

PREPARATION METHOD FOR MICRO-CROSSLINKED POWDER POLYCARBOXYLATE WATER REDUCING AGENT

Номер: WO2020001008A1
Автор: LIN, Yanmei, FANG, Yunhui, KE, Yuliang, LI, Geli, ZHUANG, Boxiang, LAI, Huazhen, ZHANG, Xiaofang, ZHONG, Lina, LAI, Guangxing
Принадлежит:

Disclosed in the present invention is a preparation method for a micro-crosslinked powder polycarboxylate water reducing agent, comprising the following steps: (1) preparing a micro-crosslinked macromonomer; (2) preparing a molecular weight regulator; (3) performing a bulk polymerization reaction; 4) cooling and slicing. The product of the present invention is a powder, which saves costs in production, transportation and storage and reduces the costs of the product; the invention uses a kneader to carry out bulk polymerization, and overcomes the problems wherein the viscosity of reactants is high, stirring is difficult and heat dissipation is difficult during the bulk polymerization of polycarboxylic acid water reducing agents; the tetrahydrofuran-propylene oxide copolymer diol structure contained in the invention may effectively inhibit bacteria and prevent mildew such that a product may be stored for a long time without mildew.

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Номер записи: 15
02-01-2020 дата публикации

PREPARATION METHOD FOR RETARDING ETHER TYPE POLYCARBOXYLIC ACID WATER REDUCING AGENT

Номер: WO2020001169A1
Автор: ZHANG, Xiaofang, KE, Yuliang, FANG, Yunhui, ZHONG, Lina, LAI, Huazhen, LI, Geli
Принадлежит:

Disclosed in the present invention is a preparation method for a retarding ether type polycarboxylic acid water reducing agent, comprising the following steps: (1) esterified monomer preparation; (2) copolymerization; and (3) neutralization reaction. According to the preparation method of the present invention, a carbohydrate and crotonic acid undergoes esterification to prepare an esterified monomer, bringing advantages such as low costs and simple operations; the prepared carbohydrate esterified product participates in the subsequent copolymerization to make the main chain of a polycarboxylic acid water reducing agent be provided with a polyhydroxy structure, so that the prepared polycarboxylic acid water reducing agent has a good retarding effect. The initial retarding time and final retarding time for concrete are effectively prolonged, and negative influence brought by a retarder is reduced. Moreover, the carbohydrate polyhydroxy structure allows the polycarboxylic acid water reducing ...

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Номер записи: 16
15-08-2023 дата публикации

Blood sampling device

Номер: CN116584937A
Автор: LIU GUANGYI, LUO XIAOYA, YIN XIUBI, XU HUIKUI, LIU JIE, JIANG YINGSI, ZHANG XIAOFANG, ZHOU QIN, ZHANG QINGYI, YE SHUANG
Принадлежит:

The invention discloses a blood sampling device, which belongs to the technical field of medical instruments and comprises a blood sampling needle mechanism, a placing box, a blood gas needle mechanism, a vacuum negative pressure blood vessel and a sealing plug, the placement box comprises a box body, a fixed block, a pull ring, a guide rod, a spring, an ejection block, a rotating frame and a mounting frame, after blood collection is completed, the pull ring can be pulled to drive the guide rod to start to slide in the fixed block, drive the ejection block to move and compress the spring, so that the ejection block slides out of the rotating frame and does not abut against the rotating frame any more, medical staff can rotate the rotating frame, and the operation is convenient. When the blood sampling device is used, the mounting frame is driven to rotate, so that the blood gas needle mechanism and the vacuum negative-pressure blood vessel rotate along with the mounting frame, blood in ...

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Номер записи: 17
25-04-2023 дата публикации

Phased array ultrasonic inner wall bidirectional scanning device for pressure vessel connecting pipe corner joint

Номер: CN116008401A
Автор: WANG YEMIN, CHEN YANZAI, YANG PENG, LI SONG, LI PENG, JIANG GUOHUI, CAO SUIJUN, WANG YANHAO, PENG HUAZHENG, WANG HAOXU, MA LEIFENG, ZHANG YUANPENG, ZHOU CHENGQUAN, HUANG HEJING, DANG JINGKANG, HOU XINYU, ZHANG DENGKE, YANG WANSHUN, ZHANG XIAOFANG, LIU FANG
Принадлежит:

The invention relates to the field of pressure vessel connecting pipe angle joint welding seam detection and scanning, in particular to a pressure vessel connecting pipe angle joint phased array ultrasonic inner wall two-way scanning device. The rotating part is detachably connected to the bottom end of the supporting part; the fixed rod is detachably connected to the bottom end of the rotating part; the transverse sliding rod is connected to the fixed rod in a sliding manner; the support is connected to the transverse sliding rod in a sliding mode. And the probe is detachably connected to the bracket. Due to the fact that the fixing rotary knob is adopted and located below the lower positioning block, the problem that external matched operation is needed during supporting is effectively solved, and then operation can be conducted by a single person in a container, so that the container can be rapidly adjusted to a proper position for supporting.

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Номер записи: 18
29-08-2023 дата публикации

Preparation method and application of magnetic modified three-dimensional flower-shaped N-Bi < 2 > O < 2 > CO < 3 >/g-C3N < 4 > photocatalytic material

Номер: CN116651489A
Автор: HUANG YONG, YE YULING, LIU XIAONAN, XING BO, ZHANG XIAOFANG, HE LINXIN, YOU JUNJIE, ZHOU QIANG, HUANG WEI, GUO DEJIN
Принадлежит:

The invention provides a preparation method and application of a magnetic modified three-dimensional flower-shaped N-Bi2O2CO3/g-C3N4 photocatalytic material, and belongs to the technical field of preparation of inorganic-organic composite nano materials. The preparation method comprises the following steps: S1, preparing a g-C3N4 nanosheet; s2, preparing a three-dimensional flower-shaped N-Bi2O2CO3/g-C3N4 (N-Bi2O2CO3/g-C3N4) photocatalytic material, and S3, preparing a magnetic modified three-dimensional flower-shaped N-Bi2O2CO3/g-C3N4 photocatalytic material: dispersing the three-dimensional flower-shaped N-Bi2O2CO3/g-C3N4 photocatalytic material prepared in S2 into a mixed solution of Fe < 2 + > and Fe < 3 + >, aging under the protection of N2, then adjusting the pH value to 8-9, reacting, and then filtering, washing and drying to obtain the magnetic modified three-dimensional flower-shaped N-Bi2O2CO3/g-C3N4 photocatalytic material. According to the method, a g-C3N4 nanosheet is adopted ...

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Номер записи: 19
07-04-2023 дата публикации

Polyoxyalkyl ether with ester group structure, ether polycarboxylic acid water reducing agent and preparation method of ether polycarboxylic acid water reducing agent

Номер: CN115926138A
Автор: LIN ZHIJUN, ZHANG XIAOFANG, FANG YUNHUI, KE YULIANG, GUO YUANQIANG, LIN YANMEI, CHEN ZHANHUA, ZHU SHAOHONG
Принадлежит:

The invention relates to the technical field of concrete admixtures, in particular to polyoxyalkyl ether with an ester group structure, an ether polycarboxylic acid water reducing agent and a preparation method of the ether polycarboxylic acid water reducing agent. The ether polycarboxylic acid water reducing agent is formed by polymerizing comonomers; the comonomer comprises polyoxyalkyl ether, polyoxyalkyl ether with an ester group structure, an ester monomer and unsaturated acid. The ether polycarboxylic acid water reducing agent provided by the invention has good water reducing performance, can effectively improve the initial dispersing performance of concrete and improve the strength of the concrete, can reduce the sensitivity of the concrete, and has slump retaining effect and mud resisting effect.

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Номер записи: 20
04-04-2023 дата публикации

Viscosity-reducing slow-release polycarboxylate superplasticizer and preparation method thereof

Номер: CN115894889A
Автор: CHEN ZHANHUA, FANG YUNHUI, KE YULIANG, LIN YANMEI, ZHANG XIAOFANG, LIN ZHIJUN, ZHOU LONGJIE
Принадлежит:

The invention relates to a viscosity-reducing slow-release polycarboxylate superplasticizer and a preparation method thereof, and the viscosity-reducing slow-release polycarboxylate superplasticizer comprises the following raw materials by mass: 200-300 parts of fatty alcohol phosphate polyether, 16-25 parts of unsaturated acid, 1-3 parts of a reducing agent, 1-3 parts of an oxidizing agent, 2-3 parts of a chain transfer agent, 80-100 parts of deionized water, and 6-9 parts of a neutralizer. The fatty alcohol phosphate polyether monomer is characterized in that the structural formula of the fatty alcohol phosphate polyether monomer is as follows: R is any one of-C3H5,-C4H7 and-C5H9, m is an integer from 1 to 40, and n is an integer from 1 to 20. According to the prepared fatty alcohol phosphate polyether monomer, a large number of hydrophobic ester groups are introduced to a main chain of a water reducing agent, the hydrophilic performance of polycarboxylic acid molecules is adjusted, the ...

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Номер записи: 21
04-04-2023 дата публикации

Doped-sensitive monomer as well as preparation method and application thereof

Номер: CN115894910A
Автор: LIN YANMEI, ZHU SHAOHONG, CHEN ZHANHUA, FANG YUNHUI, ZHANG XIAOFANG, LIN ZHIJUN
Принадлежит:

The invention relates to a doped sensitive monomer as well as a preparation method and application thereof. The doped sensitive monomer is prepared from the following raw materials in parts by weight: 355 to 710 parts of 2, 2-dimethyl aziridine; 86 to 172 parts of a catalyst; and 11-33 parts of methacrylic acid. According to the present invention, the doped sensitive monomer is introduced to the side chain of the water reducer, such that the water reducer adsorption group density can be automatically adjusted along with the change of the doping amount so as to provide the similar dispersion and dispersion retention ability under the different doping amounts, such that the prepared water reducer has the high adaptability to the different doping amounts, and the application range of the polycarboxylate water reducer is expanded.

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Номер записи: 22
09-05-2023 дата публикации

Anti-interference material, anti-interference film and preparation method and application thereof

Номер: CN116082707A
Автор: YANG HAIPENG, SHI XINLIN, ZHANG XUCHANG, ZHANG XIAOFANG, XIAO WENHUANG
Принадлежит:

The invention relates to the technical field of biosensing, in particular to an anti-interference material, an anti-interference film and a preparation method and application thereof. The anti-interference material comprises a carboxylation material, the carboxylation material comprises at least one of a carboxylation material containing a conjugated pi bond and a carboxylation molecular sieve, and interference components are isolated in an electric repulsion and adsorption manner, so that the influence of anionic and neutral molecular interference components in body fluid on a detection result is avoided. The anti-interference film comprises an anti-interference material, the preparation process is simplified, the anti-interference film is used in an electrochemical sensor and color developing test paper, an interference substance treatment link can be avoided, the detection time is saved, the detection accuracy is improved, and the anti-interference effect is more than 30 times that of ...

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Номер записи: 23
25-04-2023 дата публикации

Orchid nutrition prediction method based on hyperspectral feature screening and machine learning

Номер: CN116011323A
Автор: FENG YAO, ZHANG XIAOFANG, WU SHASHA, LI SHUANG, ZHAI JUNWEN, WANG JUAN, CHEN LU, LI KETAO, DENG SHUWEN, LI QINGNYU
Принадлежит:

The invention provides an orchid nutrition prediction method based on hyperspectral feature screening and machine learning, and the method comprises the steps: S1, collecting a reflection spectrum of an orchid leaf through a portable ground feature spectrometer and an airborne hyperspectral imager, and determining the content of nitrogen, phosphorus and potassium nutrients of the orchid leaf through a soil nutrient detector; s2, carrying out data cleaning and preprocessing on the collected spectral data and physicochemical values of the orchid leaves; s3, processing the orchid data and performing feature screening; s4, simulating the contents of nitrogen, phosphorus and potassium nutrients of the orchid leaves by using linear and nonlinear machine learning models; and S5, according to the quality of the model evaluation indexes, repeated parameter adjustment is carried out on the model so as to achieve the best fitting effect, and the method has the advantages of being high in analysis ...

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Номер записи: 24
22-08-2023 дата публикации

Sample liquid extraction device for dairy product detection

Номер: CN116625748A
Автор: ZHANG XIAOFANG, LI YUEHUA, CHEN SHUXING, SUN YAN, WANG YANZHAO, CHENG LILI, CHOI, SUNG-MUN, ZHOU JINGQI, ZHAO JUNFANG
Принадлежит:

The invention relates to the technical field of dairy product detection, in particular to a sample liquid extraction device for dairy product detection, through a sliding rod, a rotating block and a stirring rod, when the sliding rod moves downwards, the rotating block is driven to rotate, and the rotating block drives the stirring rod to stir dairy products needing to be detected, so that the layered dairy products can be fully shaken up, and the detection efficiency is improved. By means of the multiple sampling holes, sampling of multiple parts is facilitated, sampling uniformity is facilitated, the sampling speed is increased, repeated sampling is not needed, when the sliding plug moves upwards, the stirring rod is driven to evenly stir, dairy products are sampled at the same time, instant sampling of the evenly stirred dairy products is facilitated, layering of the dairy products is prevented, and sampling efficiency is improved. Meanwhile, the sliding rod drives the sliding plug to ...

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Номер записи: 25
28-04-2023 дата публикации

Reduction type polycarboxylate superplasticizer and preparation method thereof

Номер: CN116023599A
Автор: CHEN ZHANHUA, FANG YUNHUI, KE YULIANG, LIN YANMEI, ZHANG XIAOFANG, LIN ZHIJUN, ZHOU LONGJIE
Принадлежит:

The invention relates to a shrinkage-reducing type polycarboxylate superplasticizer and a preparation method of the shrinkage-reducing type polycarboxylate superplasticizer. Comprising the following raw materials: 50-100 parts of a polyether monomer with a multi-block structure, 10-15 parts of a hyperbranched functional monomer, 150-250 parts of a vinyl polyoxyethylene ether macromonomer, 8-15 parts of unsaturated acid, 1-3 parts of a reducing agent, 1-3 parts of an oxidizing agent, 2-3 parts of a chain transfer agent, 80-100 parts of deionized water and 6-9 parts of a neutralizing agent. The polycarboxylate superplasticizer is synthesized by using vinyl polyoxyethylene ether as a monomer, the reaction conversion rate is improved by using the high activity of double bonds of the vinyl polyoxyethylene ether, a shrinkage-reducing functional group is well grafted to a main chain of the polycarboxylate superplasticizer through free radical copolymerization, and the shrinkage-reducing performance ...

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Номер записи: 26
09-05-2023 дата публикации

Atmospheric pressure dielectric barrier discharge phenomenon demonstration and measurement device and system

Номер: CN116087712A
Автор: LIU KAIYING, YU ZHE, ZHANG XIAOFANG, WU JIULONG, CAI WEIKANG, DAI NA
Принадлежит:

The invention discloses an atmospheric pressure dielectric barrier discharge phenomenon demonstration and measurement device and system. The device comprises a device shell, a first electrode plate, a second electrode plate and an insulation device, the glass cover is arranged at the top of the shell body, and one side of the glass cover is rotationally connected with the shell body; the first insulating medium plate is fixed at the top of the shell body, the first electrode plate is fixed on the first insulating medium plate, the second insulating medium plate and the first electrode plate are fixedly connected to form a first gap area, and the second electrode plate is fixed on the second insulating medium plate to form a second gap area; the first gap area and the second gap area are used for discharging when the first electrode plate inputs alternating voltage; and a dielectric barrier discharge circuit is arranged in the shell body. The problems that an existing experimental device ...

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Номер записи: 27
29-08-2023 дата публикации

Preparation method of silver-coated copper, silver-coated copper and electronic paste

Номер: CN116652181A
Автор: ZHANG XIAOFANG, ZENG XIPING, YE HUANGQING, YU DONGXU, PAN YINGYING
Принадлежит:

The invention provides a preparation method of silver-coated copper, which comprises the following steps: (1) taking copper powder, adding dilute sulphuric acid, and carrying out ultrasonic treatment and cleaning; (2) adding the copper powder obtained in the step (1) into water, stirring, adding a reducing agent, adjusting the pH value of the solution to 11 +/-0.5, and continuously stirring at 70 +/-5 DEG C; and (3) dropwise adding an ammonia water solution of silver salt into the solution obtained in the step (2), and then reacting at 70 DEG C +/-5 DEG C to obtain the silver-coated copper. According to the method, the reaction steps are simple, operation is easy and convenient, the reaction conditions are easy to control, the prepared silver layer is good in cladding compactness and uniformity, and the oxidation resistance of the silver-coated copper can be effectively improved.

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Номер записи: 28
13-04-2021 дата публикации

Industrial waste gas treatment device convenient for automatically cleaning filter screen

Номер: CN212941998U
Автор: FAN WENJIAO, ZHANG XIAOFANG, 范文蛟, 张小芳
Принадлежит: ZHANG XIAOFANG, 张小芳

The industrial waste gas treatment device comprises a pipeline, a motor, a filter screen, a spring and a through hole, a fixing base is fixedly arranged above the pipeline, the motor is fixed to the surface of the fixing base through bolts, a connecting sleeve is fixedly connected to the front end of the motor, and the connecting sleeve is fixedly connected with the front end of the connecting sleeve. A U-shaped rod is movably mounted on the outer side of the connecting sleeve, a rotating rod is fixedly connected to the front end of the U-shaped rod, limiting sleeves are fixedly connected to the upper portion and the lower portion of the fixing base, a sliding groove is formed in the right side of the pipeline, a sliding block is slidably mounted in the sliding groove, and a connecting plate is fixedly connected to the front end of the sliding block; a rubber plate is fixedly arranged on the surface of the connecting plate, and a filter screen is fixedly installed in the pipeline. According ...

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Номер записи: 29
17-08-2021 дата публикации

Spiral-flow type desilting device for water conservancy project construction and implementation method thereof

Номер: CN113262532A
Автор: WANG WENWEN, ZHANG JUNGUAN, LU YINLING, SUN HAIFENG, ZHANG XIAOFANG, 王雯雯, 张俊冠, 卢银玲, 孙海峰, 张小芳
Принадлежит:

The invention discloses a spiral-flow type desilting device for water conservancy project construction and an implementation method thereof. The spiral-flow type desilting device for water conservancy project construction comprises a box body, a conical part installed at the lower end of the box body and a desilting bin installed at the lower end of the conical part. A motor A is started to work, wherein the output end of the motor A is connected with a spiral rod A, so that the spiral rod A is driven to rotate; the bevel gear is driven to rotate through meshing connection of a gear piece and the bevel gear, and since the other end of the bevel gear is connected with a spiral rod B, the spiral rod B can rotate; the spiral rod B is installed in the channel, sand deposited at the upper end of the negative pressure cover can be conveyed into the sand collecting box through the channel, and the sand is accumulated in the sand collecting box; due to the fact that the channel is obliquely installed ...

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Номер записи: 30