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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 20. Отображено 20.
19-02-2014 дата публикации

Novel manufacturing method of flame burner of atomic absorption apparatus

Номер: CN103592233A
Автор: ZHANG CHENGUANG, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a novel manufacturing method of a flame burner of an atomic absorption apparatus. The manufacturing method comprises the following steps: utilizing a laser metal powder sintering apparatus and adopting a laser powder sintering technology to carry out laser melting to metal powder on a local region of a platform, in order to firmly welding the metal powder together and further form a thin layer of the burner, repeating the steps above, and finally forming the complicated atomic absorption flame burner. The atomic absorption flame burner which is manufactured by adding material can enable a cavity for mixing and uniformly distributing atomizing gas inside the burner to meet hydromechanical requirements better, thereby improving the performance of the apparatus, and shortening the process cycle.

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Номер записи: 1
30-04-2014 дата публикации

Liquid core waveguide flow-through cell for UV spectrophotometric detector

Номер: CN103760107A
Автор: YIN YANGQING, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a liquid core waveguide flow-through cell for a UV spectrophotometric detector. The flow-through cell comprises a shell, and a pair of interface components with the same structure. The two interface components are assembled symmetrically on both sides of the shell, the shell is provided inside with a liquid core waveguide, and two ends of the liquid core waveguide are respectively connected to the interface components through cone press rings. The present invention employs liquid core waveguide total emission absorption optical path design to reduce the optical attenuation, improve the sensitivity of the UV spectrophotometric detector, extend the detection range of detector and greatly enhance the practicality of the detector.

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Номер записи: 2
19-02-2014 дата публикации

Method for testing tin content of tin-lead solder through flame atomic absorption spectroscopy method

Номер: CN103592239A
Автор: CAO WENZHI, WANG GUODONG, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a method for testing tin content of a tin-lead solder through a flame atomic absorption spectroscopy method. According to the method, nitric acid, hydrofluoric acid and hydrogen peroxide are used as solvents to rapidly decompose the tin-lead solder, the ratio of the nitric acid to the hydrofluoric acid to the hydrogen peroxide is 1:2:1, a sample is heated and dissolved by an electric heating plate at the low temperature, the absorbancy of the tin in a decomposition solution is measured by using the air-acetylene fuel-lean flame atomic absorption spectroscopy method, and the tin content in the decomposition solution is calculated by using a standard addition method. The method is high in testing accuracy and relatively small in error, the whole analysis test process is simple in operation, the amount of acid used is small, and the method is capable of rapidly analyzing the tin content of the tin-lead solder.

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Номер записи: 3
19-02-2014 дата публикации

Sample treatment method for testing chloride ions in cement through ion selective electrode method

Номер: CN103592162A
Автор: LI TAO, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a sample treatment method for testing chloride ions in cement through an ion selective electrode method. The method adopts a CISA solution for being directly mixed with an acid-soluble sample, and can be used for eliminating interferences of hydroxide ions, ammonia water, thiosulphate ions, bromide ions, sulfide ions, iodide ions, cyanide ions and the like, improving the test repeatability and accuracy, protecting a membrane of a chloride ion selective electrode to the maximum extent and prolonging the service life of the electrode. Therefore, the method for testing the chloride ion content through the ion selective electrode method by adding the CISA solution is suitable for testing cement materials with complex base body ingredients and also is suitable for testing the content of chloride ions in other building materials.

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Номер записи: 4
28-01-2015 дата публикации

Multiple-reflection optical path-based natural gas pipeline leakage vehicle-mounted detection equipment

Номер: CN104315348A
Автор: YAN JIE, ZHOU YU, GAO MEILI
Принадлежит:

The invention discloses multiple-reflection optical path-based natural gas pipeline leakage vehicle-mounted detection equipment which is vehicle-mounted equipment combined with a multiple-reflection opened gas pool for detection of leakage of an urban natural gas pipeline. The system has the advantages of no interference of vapor and other gas components during measuring, high measuring sensitivity (up to 1-2ppm) and high antijamming capacity. A vehicle-mounted system can be enabled to fast and accurately detect a natural gas leakage point and leakage intensity along a road. The equipment comprises a TDLAS (tunable diode laser absorption spectroscopy) laser driving part, a signal detection part, a signal processing part and the like and comprises the opened multiple-reflection gas pool, a GPS (global positioning system), a vehicle-mounted computer and the like. The equipment uses the TDLAS technology, a multiple-reflection pool technology and a GPS technology, and realizes the function ...

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Номер записи: 5
19-02-2014 дата публикации

Photovoltaic small-signal acquisition and amplification circuit of ultraviolet and visible spectrophotometer

Номер: CN103595354A
Автор: XIE XIAOMING, DUAN JUNWEI, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a photovoltaic small-signal acquisition and amplification circuit of an ultraviolet and visible spectrophotometer. The photovoltaic small-signal acquisition and amplification circuit comprises a signal front-end processing part and a signal amplification part, wherein current signals output by a photoelectric detector are converted into voltage signals through an operational amplifier AD8627 in the signal front-end processing part, gain control is carried out on the voltage signals by a digital potentiometer AD5262 in the signal amplification part, then the voltage signals are amplified through two voltage type transportation amplifiers OPA2727 in the signal amplification part, and the voltage signals are output. The photovoltaic small-signal acquisition and amplification circuit has the advantages of being high in detection precision and more reliable in acquisition of weak small signals. Meanwhile, the photovoltaic small-signal acquisition and amplification circuit ...

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Номер записи: 6
10-11-2010 дата публикации

Preparation of starch detection test paper for milk and solution and starch detection method

Номер: CN0101398388B
Автор: TAN DAN, MA XIAOMING, WU YOUSHEN, YANG SHUIYUN, GAO MEILI, LIU YONG, DAN TAN, XIAOMING MA, YOUSHEN WU, SHUIYUN YANG, MEILI GAO, YONG LIU
Принадлежит:

The invention provides a preparation method of starch detection test paper in milk and milk solution and a detection method of starch; firstly, water solution containing alkali, iodide and oxidant is prepared, sufficiently dissolved and uniformly mixed, thus forming stable test paper iodine original solution; the test paper iodine original solution is uniformly fixed on a carrier by the forms of coating, printing or soaking and dried so as to obtain the detection test paper. The liquid to be detected together with the developer is dripped on the test paper; if the liquid to be detected contains matters such as dextrin, starch and the like, the color of the starch detection test paper changes to amaranth or navy blue, otherwise, the color of the starch detection test paper changes to alabaster to colorless; the qualitative or semi-quantitative detection of matters such as starch and the like can be carried out by matching with a colorimetric card for use; and the developer is acidic matter ...

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Номер записи: 7
28-01-2015 дата публикации

Soybean milk vine tea compound health drink and preparation method thereof

Номер: CN104304496A
Автор: ZHANG SHIXIAN, GAO MEILI, CHEN YUN, LIU YAN, ZENG QIHUA, LIANG LINLI, TANG GUANGYU
Принадлежит:

The invention relates to the technical field of drink preparation, and particularly relates to a soybean milk vine tea compound health drink and a preparation method thereof. Through adjustment of the proportion of the soybean and the vine tea, adjustment of the time for putting the vine tea into the soybean milk, and control and adjustment of physicochemical conditions, the prepared drink has a coordinated flavor and has no astringent, so that the astringent generated by combination of protein in the soybean milk and saliva is prevented, the astringent of the vine tea is also eliminated, and the prepared soybean milk vine tea drink is greatly improved in the taste; due to the addition of sweetening agent (sucralose), the manufacture cost for the drink is lowered, the drink has more excellent flavor; and due to the sodium carboxymethylcellulose, the stability of the quality of the drink is further improved, the quality of the drink is improved, and the flavor and taste of the drink are ...

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Номер записи: 8
06-07-2011 дата публикации

Assembled silencer

Номер: CN0102116184A
Автор: ZANG ZHUHUA, JI FENGXUE, GAO MEILI, YANG YONGAN, WANG LIXIN, YU JUN, LU SHUHUA, YUN MINGYA, WEI DELI, ZANG JINNAN, LU CHENGHAO, HU ZHEN, GAO YU, WEI YI, ZHUHUA ZANG, FENGXUE JI, MEILI GAO, YONGAN YANG, LIXIN WANG, SHUHUA LU, MINGYA YUN, DELI WEI, JINNAN ZANG, CHENGHAO LU, ZHEN HU, YU GAO, YI WEI
Принадлежит:

The invention discloses an assembled silencer. The assembled silencer can be assembled and used for silencing at a noise source, can reduce noise by more than 25 percent, is widely applicable for being used in various wind transmission situations, liquid transmission situations and mechanical rotating situations, has a simple construction structure and a short construction period, produces no construction waste, can be designed according to specific situations, and can be produced in a generalized, standardized and industrialized manner.

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Номер записи: 9
02-12-2009 дата публикации

Preparation method and application thereof of acellular conjunctiva matrix

Номер: CN0101590292A
Автор: SHI WEIYUN, ZHAO HAIFENG, ZHOU QINGJUN, GAO YAN, GAO MEILI, YANG LINGLING, WEIYUN SHI, HAIFENG ZHAO, QINGJUN ZHOU, YAN GAO, MEILI GAO, LINGLING YANG
Принадлежит:

The invention relates to a preparation method and application thereof of an acellular conjunctiva matrix used as a tissue engineering corneal scaffold material. The method comprises the following steps: removing cell components in a bulbar conjunctiva first; preparing the acellular conjunctiva matrix; and taking the acellular conjunctiva matrix as a tissue engineering corneal scaffold. A rabbit corneal epithelium or an endothelial cell can form a good cell single layer on the scaffold, can construct a tissue engineering corneal epithelium or endothelium, and can successfully transplant the tissue engineering corneal epithelium or endothelium onto rabbit animal model eyes. The degradation time of the built tissue engineering cornea is longer, rabbit eyes have no obvious immune reject reaction, and the therapeutic effects on the lack of corneal limbus stem cells or the decompensation of the corneal endothelial cell function are obvious. The method and the application thereof have the advantages ...

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Номер записи: 10
26-02-2014 дата публикации

Leakage detection method for central air conditioner copper tube

Номер: CN103604572A
Автор: DUAN JUNWEI, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a leakage detection method for a central air conditioner copper tube. A differential pressure airtight leakage detection instrument is employed, with a detection mode of double end symmetrical counteraction, one end of a detected copper tube is connected to a detected end of the airtight leakage detection instrument, one end of a low leakage qualified copper tube is connected to the standard end of the airtight leakage detection instrument, high-pressure nitrogen or compressed air is introduced into the air inlet of the differential pressure airtight leakage detection instrument, the other end of each of the detected copper tube and the standard copper tube is sealed through a plugging head, and the detection of gas filling, pressure releasing, balancing, testing and gas discharging processes of the detected copper tube and the standard copper tube is carried out through the airtight leakage detection instrument at the same time. The method gas the advantages of ...

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Номер записи: 11
19-02-2014 дата публикации

White cell type flame atomizer

Номер: CN103592240A
Автор: WANG GUODONG, CAO WENZHI, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a white cell type flame atomizer which comprises three concave surface reflectors M1, M2 and M3 with the same focal distance, wherein the concave surface reflectors M1 and M2 are completely same in size and are fixed at one end of a full titanium optical table in parallel, the concave surface reflector M3 is fixed at the other end of the full titanium optical table, the concave surfaces of the concave surface reflectors M1 and M2 are opposite to the concave surface of the concave surface reflector M3, the distance between the concave surface reflectors M1 and M2 and the concave surface reflector M3 is equal to the radius of curvature of the concave surface reflector with the focal distance, a full titanium burning sheet is fixed on the full titanium optical table between the concave surface reflectors M1 and M2 and the concave surface reflector M3, and the full titanium optical table is welded on a full titanium burning seat. According to the invention, a light source ...

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Номер записи: 12
19-02-2014 дата публикации

Structure-improved liquid phase plunger pump

Номер: CN103591011A
Автор: DING JIHENG, ZHOU YU, GAO MEILI
Принадлежит:

The invention discloses a structure-improved liquid phase plunger pump. The structure-improved liquid phase plunger pump comprises a high-pressure cavity and a low-pressure cavity, wherein an inner cavity opening is formed in the rear side of the low-pressure cavity. The structure-improved liquid phase plunger pump further comprises a plunger rod and a dustproof cover, wherein a pressing plate is fixed to an opening in the rear side of the dustproof cover, a spring is arranged in the dustproof cover, the dustproof cover is assembled on the plunger rod as a whole and installed on the cavity opening in the rear side of the lower-pressure cavity, the front end of the plunger rod penetrates into an inner cavity of the high-pressure cavity and an inner cavity of the low-pressure cavity, the rear end of the plunger rod stretches out of the pressing plate and is fixedly connected with one ejector rod, and annular table is arranged on the rod body of the plunger rod and is sleeved with a supporting ...

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Номер записи: 13
19-02-2014 дата публикации

Leakage detection device of base surface of fuel oil common-rail control valve body

Номер: CN103592087A
Автор: DUAN JUNWEI, WANG CHAO, ZHOU YU, GAO MEILI
Принадлежит:

The invention discloses a leakage detection device of a base surface of a fuel oil common-rail control valve body. The device comprises a differential pressure type airtight leakage detector, a volume expansion device and a plugging and positioning device, wherein a detection tube is connected to the detection end of the airtight detector, one end of the detection tube stretches into a pressing block groove of the plugging and positioning device to enable the airtight leakage detector and the pressing block groove to be communicated, and the volume expansion device is communicated to the detection tube of the airtight leakage detector through a T-joint. The leakage detection device of the base surface of the fuel oil common-rail control valve body has the advantages of being convenient to use, accurate and reliable in leakage detection, good in stability, good in environmental friendliness, and capable of avoiding false detection occurring in a traditional oil detection process caused by ...

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Номер записи: 14
19-02-2014 дата публикации

Laser gas analyzer for precise temperature compensation in concentration of gas to be measured

Номер: CN103592253A
Автор: YAN JIE, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a laser gas analyzer for precise temperature compensation in concentration of gas to be measured. The laser gas analyzer comprises two lasers, wherein the two lasers are both in control connection with a laser driving control circuit; laser emitting ends of the two lasers are respectively accessed into a beam combiner through single-mode optical fibers; a collimating lens is arranged in a light path of a light output end of the beam combiner; a photoelectric conversion receiving end is arranged in a detection gas light path behind the collimating lens, and is connected with a signal processing module; the signal output end of the signal processing module is connected with a time division multiplexing control and data processing unit; the time division multiplexing control and data processing unit is connected with the laser driving control circuit. Due to adoption of the laser gas analyzer, accurate compensation on temperature of the gas to be detected is achieved ...

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Номер записи: 15
04-11-2015 дата публикации

Lever self compensating sticky tape sweeper

Номер: CN0204737369U
Автор: ZHANG ZHIJIANG, ZHAO YONGFENG, GAO MEILI, LIU LIFANG, YANG JIGUANG
Принадлежит:

The utility model provides a lever self compensating sticky tape sweeper, belongs to and carries technical field, and the problem of belt conveyor belt dry slag is solved to the purpose, and its technical scheme is, and this sticky tape sweeper includes scraper cleaner, horizontal rotating shaft, horizontal lever, counterweight bracket and weight, the pivot is located the below of band conveyer back tracking belt, and its both ends are rotated with the gallows of band conveyer frame both sides respectively and are connected, the scraper cleaner is fixed in the pivot, on its working edge leans on the lower surface at band conveyer back tracking belt, the pivot of lever perpendicular to, its one end and pivot fixed connection, counterweight bracket hangs on the lever, and the weight is placed on its upper portion. The utility model discloses utilize the scraper cleaner to clear away band conveyer's belt dry slag to utilizing the lever principle automatic control scraper cleaner to the pressure ...

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Номер записи: 16
01-04-2009 дата публикации

Preparation of starch detection test paper for milk and solution and starch detection method

Номер: CN0101398388A
Автор: YANG SHUIYUN, MA XIAOMING, LIU YONG, TAN DAN, WU YOUSHEN, GAO MEILI, SHUIYUN YANG, XIAOMING MA, YONG LIU, DAN TAN, YOUSHEN WU, MEILI GAO
Принадлежит:

The invention provides a preparation method of starch detection test paper in milk and milk solution and a detection method of starch; firstly, water solution containing alkali, iodide and oxidant is prepared, sufficiently dissolved and uniformly mixed, thus forming stable test paper iodine original solution; the test paper iodine original solution is uniformly fixed on a carrier by the forms of coating, printing or soaking and dried so as to obtain the detection test paper. The liquid to be detected together with the developer is dripped on the test paper; if the liquid to be detected contains matters such as dextrin, starch and the like, the color of the starch detection test paper changes to amaranth or navy blue, otherwise, the color of the starch detection test paper changes to alabaster to colorless; the qualitative or semi-quantitative detection of matters such as starch and the like can be carried out by matching with a colorimetric card for use; and the developer is acidic matter ...

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Номер записи: 17
30-04-2014 дата публикации

Ion chromatography method for measuring nitrite in food by using single pump valve switching technology

Номер: CN103760262A
Автор: GAI XUEWU, JIAO XIA, YU ZHONGFEI, ZHOU YU, GAO MEILI
Принадлежит:

The invention discloses an ion chromatography method for measuring nitrite in food by using a single pump valve switching technology. The method comprises the following steps of delivering a leacheate into a pre-separation by a pump through a sampling valve, feeding into an analytical column connected on a switching valve, entering a conductance cell through a suppresser to realize the balance of the whole system; and feeding a sample after treatment into the pre-separation column through the sampling valve, eluting the sample through the leacheate, restraining through the suppresser, feeding the sample into the conductance cell to finally obtain the appearance time of the high concentration chloride ion and the nitrite to be detected through chromatogram software. The method provided by the invention has the advantages that the method is simple and is easy to operate, the detecting operating cost of an instrument is reduced, the analysis time is reduced, the analysis efficiency is improved ...

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Номер записи: 18
19-02-2014 дата публикации

Manual sampling and automatic recognizing method for graphite furnace atomic absorption spectrometer

Номер: CN103592241A
Автор: WANG GUODONG, CAO WENZHI, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a manual sampling and automatic recognizing program for a graphite furnace atomic absorption spectrometer. The recognizing program is composed of a data processing module and a graphic storing module, wherein standard absorbance waveform graphs are stored in the graphic storing module. During actual sampling, the data processing module calls the standard absorbance waveform graphs in the graphic storing module, finds out the standard absorbance waveform graph similar with a sampling absorbance waveform graph, and compares the sampling absorbance waveform graph with the standard absorbance waveform graph to obtain absorbance value change so as to judge whether sampling operation is normally carried out or not. If the sampling operation is normally carried out, the graphite furnace atomic absorption spectrometer is subjected to a heating test, and data is collected. If the sampling operation is non-normally carried out, the spectrometer automatically starts to carry ...

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Номер записи: 19
19-02-2014 дата публикации

Method for reducing flow fluctuations in liquid chromatograph and infusion pump device

Номер: CN103590993A
Автор: ZHAI CHANG, ZHANG XIN, GAO MEILI, ZHOU YU
Принадлежит:

The invention discloses a method for reducing flow fluctuations in a liquid chromatograph and an infusion pump device. The infusion pump device comprises a main control unit, the main control unit in control connection with a motor, the motor is in transmission connection with a cam group, and the cam group comprises a large cam and a small cam, wherein the large cam and the small cam are connected in series. The large cam and the small cam are respectively provided with a cam positioning device and drive a first plunger rod and a second plunger rod to alternately reciprocate in a first hydraulic cylinder and a second hydraulic cylinder respectively. An inlet in the first hydraulic cylinder and an outlet in the first hydraulic cylinder are respectively provided with a one-way valve, and the outlet in the first hydraulic cylinder is connected with the second hydraulic cylinder and provided with a pressure detecting device for detecting the pressure of a flowing phase in a monitoring system ...

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Номер записи: 20