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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 27. Отображено 27.
22-04-2015 дата публикации

Adefovir dipivoxil preparation method

Номер: CN104530130A
Автор: GUO HAIMING, LI RENLONG, WANG HAIXIA, WANG DONGCHAO, ZHANG QIAN, XIE MINGSHENG, QU GUIRONG
Принадлежит:

The present invention discloses an adefovir dipivoxil preparation method, which comprises the following steps represented in the instruction. According to the present invention, base on the research of the existing adefovir dipivoxil synthesis route, the new synthesis route of 9-(2-hydroxyethyl)adenine is designed so as to provide the new method and the new idea for the synthesis of the drug adefovir dipivoxil, and provide help for the future drug development and production.

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Номер записи: 1
01-04-2015 дата публикации

Novel C8-heterocyclic alkylated purine nucleoside analogue and synthetic method thereof

Номер: CN104478883A
Автор: NIU HONGYING, SU LINGYUN, LI JIANPING, GUO HAIMING, WANG DONGCHAO, XIE MINGSHENG, QU GUIRONG
Принадлежит:

The invention discloses a novel C8-heterocyclic alkylated purine nucleoside analogue and a synthetic method thereof and provides a method for synthesizing a C8-heterocyclic alkylated nucleoside analogue by high-efficiency C-H activation. The method adopts raw materials which are easily available, and is moderate in reaction condition and few in reaction steps. The method aims to solve the problems of expensive raw materials, complex process and harsh reaction condition during synthesis of the type of compound, to provide a reference value for synthesis and application of a nucleoside medicine and to provide the raw materials for research of novel anti-virus and antitumor drugs. Meanwhile, the method disclosed by the invention provides an effective method for heterocyclic alkylatation of other nucleosides and analogues of the nucleosides and is wide in industrial application prospect.

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Номер записи: 2
02-05-2023 дата публикации

Detection processing method and device for dew point temperature of air conditioner and storage medium

Номер: CN116045441A
Автор: LAN FORONG, LIU CHAO, CHEN RONG, DENG WEIWEI, SU FUBIN, LIU QINGFENG, XIE MINGSHENG, XIE FAN
Принадлежит:

The invention provides a detection processing method and device for the dew-point temperature of an air conditioner and a storage medium, and relates to the technical field of air conditioning units, and the method comprises the steps that the air supply temperature and the air supply humidity corresponding to the air conditioning unit are obtained; based on the air supply temperature and the air supply humidity, the dew point temperature corresponding to air supply airflow of the air conditioning unit is determined; acquiring an environment average temperature corresponding to the air conditioning unit; and comparing the dew point temperature with the ambient average temperature, and performing corresponding processing based on a comparison result. The dew point temperature of the air conditioner is detected and correspondingly treated, it can be ensured that the air pipe of the air conditioner assembly cannot form condensed water, pollution to materials is avoided, the operation stability ...

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Номер записи: 3
29-12-2004 дата публикации

毛木耳北方栽培方法

Номер: CN0001557121A
Автор: LI WENQIN, XIE MINGSHENG, WENQIN LI, MINGSHENG XIE, 李文琴
Принадлежит:

The present invention relates to edible fungus cultivating technology, and is especially the cultivation process of hairy edible fungus in Northern. The cultivation process includes compounding culture material in certain proportion, bagging, steaming for 8 hr, sterilizing, inoculation, and culturing edible fungus at 22-28 deg.c for 30-45 days. The cultivation process is first indoor completed until the hypha grows to full fill the bag and the bag is cut with some opening, and the bag is then transferred to outdoor and set on furrow, covered with straw curtain, watered regularly for edible fungus to grow for 30-50 days. The present invention has fast growth speed, good taste, high yield, high resistance and high biological conversion rate.

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Номер записи: 4
02-12-2015 дата публикации

Novel steel construction jacking combined bay

Номер: CN0204826717U
Автор: CHEN CHAOJING, XIE MINGSHENG, XIE ZHENGWEI, ZHANG ZHIYUAN, LI LI, YANG JUNGANG
Принадлежит:

The utility model discloses a novel steel construction jacking combined bay, including jacking bed -jig (1), be provided with supporting seat (2) at the top of jacking bed -jig (1), be provided with one and support the standard festival (1.2) on supporting seat (2), be provided with in supporting the standard festival (1.2) hydraulic jack (3), be provided with an utensil (4) at the top of supporting the standard festival (1.2). The utility model is not only simple in structure, the installation is swift, labour saving and time saving, sound construction are reliable, can effectively improve the installation effectiveness, can have enough to meet the need the use moreover, and environmental protection and energy saving are realized to the material saving cost.

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Номер записи: 5
07-07-2023 дата публикации

Color complementing method and device for polarizing film

Номер: CN116400446A
Автор: XIE MINGSHENG, GUO XIAOFENG, LI WENYAO, RUAN ZHIYI, ZHANG LIYIN
Принадлежит:

The invention provides a color complementing method and device for a polarizing film. The method comprises the steps that the stretched polarizing film is put into water to be cleaned; the cleaned polarizing film is put into a color complementing solution for color complementing; the color-complemented polarizing film is put into a color complementing solution for color complementing again; the color complementing solution is a mixed solution of boric acid and iodide. According to the color complementing method and equipment for the polarizing film, auxiliary equipment does not need to be added, and the color tone uniformity of the polarizing film can be improved by changing the process on the basis of existing equipment. The color tone is adjusted at least through two times of color complementing solutions, due to the fact that medium-high temperature spraying is not carried out, lost iodide ions are few, and the solution cost is greatly reduced; in addition, the process can be realized ...

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Номер записи: 6
02-12-2015 дата публикации

Novel net shell promotes pylon

Номер: CN0204826688U
Автор: CHEN CHAOJING, XIE MINGSHENG, XIE ZHENGWEI, ZHANG ZHIYUAN, LI LI, YANG JUNGANG
Принадлежит:

The utility model discloses a novel net shell promotes pylon, including two promotion bed -jig (1), all be provided with supporting seat (2) at every top that promotes bed -jig (1), the both ends of crossbeam (3) are passed through on bolt (6) fix supporting seat (2) on two promotion bed -jig (1), are provided with backup pad (4) of band -pass hole (4.1) at the middle part of crossbeam (3), are provided with punching hydraulic jack (5) in backup pad (4). The utility model is not only simple in structure, the installation is swift, labour saving and time saving, sound construction are reliable, can effectively improve the installation effectiveness, can have enough to meet the need the use moreover, and environmental protection and energy saving are realized to the material saving cost.

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Номер записи: 7
22-04-2015 дата публикации

Method for synthesizing fluorine-containing noncyclic nucleoside analog

Номер: CN104530049A
Автор: GUO HAIMING, HAN RUIJIE, WANG DONGCHAO, XIE MINGSHENG, WANG HAIXIA, ZHANG QIAN, QU GUIRONG
Принадлежит:

The invention discloses a method for synthesizing fluorine-containing noncyclic nucleoside analog. The reaction equation is shown in the specification, wherein R1 is selected from one of methoxyl, ethyoxyl, piperidine, morpholine, dimethylamino and phenmethyl; and R2 is selected from one of H, NH2 and methoxyl. 5% of catalyst is adopted to obtain a product in a high-yield manner; the reaction method has the advantages that the operation is simple, the reaction condition is mild, the catalyst is cheap and easy to get, gram-grade reaction can be carried out, and the reaction can acquire more favorable products, therefore, a simple and practical synthetic method for synthesizing fluorine-containing noncyclic nucleoside analog is provided.

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Номер записи: 8
14-05-2014 дата публикации

Electric moped scooter storage battery post seal process

Номер: CN103794742A
Автор: ZHOU MINGMING, XIE MINGSHENG, DU ENSHENG, ZHANG SEN, ZHAO WENCHAO
Принадлежит:

The invention discloses an electric moped scooter storage battery post seal process. The electric moped scooter storage battery post seal process comprises the following steps: firstly, sleeving a battery post with a gluing pipe, and injecting glass cement into a groove sealed by the battery post and a middle cover by the gluing pipe; secondly, placing a post terminal to weld after the glass cement is dry and hard; and finally, injecting primer after welding, passing through a drying kiln, then injecting positive pole red cement and negative pole blue cement, and then passing through the drying kiln again. According to the invention, the glass cement replacing an O-shaped ring is used for sealing the post; the glass cement comprises the main component of silicon dioxide, and does not affect the performance of a battery; compared with O-shaped ring sleeving, glass cement injection reduces production cost, and improves the production efficiency.

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Номер записи: 9
07-04-2023 дата публикации

Powder product, preparation method thereof and powder product box

Номер: CN115919661A
Автор: TIAN YONG, SHIN BOK-CHUL, YANG SHIFANG, ZHAO HAOTIAN, ZHANG XIAOLING, WU YIDI, XU GUIFEN, TIAN YUNCAI, YU TAO, CHEN JINHAI, XIE MINGSHENG, SHEN JIE, YUAN JUMAO
Принадлежит:

The invention discloses a powder product, a preparation method thereof and a powder product box. The powder product comprises at least one surface, the surface is provided with an array formed by a plurality of protrusions, each protrusion comprises a first face and a second face, the first faces of the protrusions jointly form a first jet printing face, first patterns are printed on the first jet printing face, and the second faces of the protrusions form a second jet printing face. The second faces of the protrusions jointly form a second jet printing face, and a second pattern is printed on the second jet printing face. The convex surfaces can jointly form a pattern on the same printing surface, so that the powder product presents at least two patterns in different visual directions, and the problem that the existing powder only has the same shape or pattern in the visual angle range is solved.

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Номер записи: 10
03-12-2014 дата публикации

Low-temperature-rise rice processing method

Номер: CN104174455A
Автор: XIE ZHAOLAN, YANG FANGFU, XIAO LIHUA, XIE MINGSHENG
Принадлежит:

Disclosed is a low-temperature-rise rice processing method. The low-temperature-rise processing method includes two times of graded hulling, rice milling through a low-temperature-rise rice milling unit, one time of graded crushing, two times of grading and three times of polishing, wherein the step of graded hulling for two times includes using a hulling machine to specially process raw grain rice, and using another hulling machine to specially process unhusked rice, a KFM2525B-type low-temperature-rise air-jetting sand-roller rice milling unit is adopted for multi-machine slightly-milling, strong air jetting and multi-point air incoming, a whitening chamber is good in bran discharging effect, and temperature difference between the inside and the outside of rice grains is reduced. One time of graded crushing, two times of grading and three times of polishing are performed before polishing, starch on the surfaces of the rice grains is pre-gelatinized and gelled, and cracks are filled through ...

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Номер записи: 11
04-04-2023 дата публикации

Powder composition for cosmetics, powder product for cosmetics and preparation method of powder product

Номер: CN115887297A
Автор: TIAN YONG, SHIN BOK-CHUL, YANG SHIFANG, ZHAO HAOTIAN, ZHANG XIAOLING, WU YIDI, XU GUIFEN, TIAN YUNCAI, YU TAO, CHEN JINHAI, XIE MINGSHENG, SHEN JIE, YUAN JUMAO
Принадлежит:

The invention discloses a powder composition for cosmetics, a powder product for cosmetics and a preparation method of the powder product. The powder composition comprises the following components in percentage by mass: 75%-90% of inorganic powder; 0%-5% of functional organic powder; 1%-10% of skin moistening grease, which comprises an organosiloxane polymer, siloxy silicate, polyisobutene or a combination thereof; and 1%-10% of an adhesive. The foundation make-up composition has appropriate hardness and usability and good impact resistance, a plurality of powder protrusions can be arranged on the surface of the soft powder composition to form the protrusions, so that the side faces, on the same plane, of the surfaces of the protrusions can jointly form a pattern, the powder composition at least presents two patterns in different sight directions, and the appearance of the foundation make-up composition is improved. The problem that existing powder only has the same shape or pattern in ...

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Номер записи: 12
14-05-2014 дата публикации

Technology for producing lead powder of lead-acid storage batteries

Номер: CN103785825A
Автор: ZHOU MINGMING, XIE MINGSHENG, DU ENSHENG, ZHANG SEN, ZHAO WENCHAO
Принадлежит:

The invention discloses a technology for producing lead powder of lead-acid storage batteries. Lead powder with two oxidation contents and different apparent density specifications is produced with two lead powder machines, and the two kinds of powder is mixed and stirred evenly through one stirring machine. The oxidization content of the lead powder produced by one lead power machine is between 70 percent and 76 percent, and the apparent density of the lead powder produced by the lead power machine is between 1.40 g/cm<3> and 1.55 g/cm<3>; the oxidization content of the lead powder produced by the other lead power machine is between 74 percent and 80 percent, and the apparent density of the lead powder produced by the other lead power machine is between 1.30 g/cm<3> and 1.45 g/cm<3>. The oxidization content of the lead powder produced through the production technology is between 70 percent and 80 percent, the apparent density of the lead powder produced through the production technology ...

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Номер записи: 13
21-09-2005 дата публикации

Method for processing special-shaped riveted kettle mouth

Номер: CN0001669728A
Автор: XIE MINGSHENG, MINGSHENG XIE
Принадлежит:

This invention discloses a method for special-shaped riveting pot spout, comprising the following steps: a, cutting sheet into lump material according to planned pattern and size; b, processing lump material to flitch the same with flattening size of the pot spout; c, grinding off fin on flitch margin; d, processing flitch to U-shape on mould; e, squeezing the two sides of U-shape flitch inwards on mould to joint them; f, welding the seam to form spout and grinding, washing it; g, burnishing both inner and outer surface of the spout; h, putting spout on mould, modeling flange at root of spout; I, checking and into next procedure. The joint adopting this method has the advantages of high efficiency, stable quality and lower cost.

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Номер записи: 14
04-04-2023 дата публикации

Blusher composition, blusher powder product and preparation method thereof

Номер: CN115887247A
Автор: TIAN YONG, XU GE, XIE MINGSHENG, SHIN BOK-CHUL, SHEN JIE, YUAN JUMAO
Принадлежит:

The invention relates to a blusher composition, a blusher powder product and a preparation method of the blusher composition and the blusher powder product, and the blusher composition comprises the following components in parts by weight: 10 parts of red coloring powder; 240 to 300 parts of filling powder; 6-10 parts of a preservative; the oil-in-water type emulsion is enough to moisten the blusher composition, and comprises water, an oil-in-water type emulsifier and skin moistening grease. A blusher powder product prepared from the blusher composition is good in glossiness, not greasy, not prone to powder flying and good in makeup maintaining performance, the color can be gradually changed in a blusher box body, and the effect that the face is gradually changed by red can be achieved by means of the color change of the blusher powder product during makeup. Under the synergistic cooperation of all the components, the blusher powder product is fresh and non-greasy.

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Номер записи: 15
28-05-2014 дата публикации

Producing method of yellowing-resistant general anatase titanium dioxide

Номер: CN103819943A
Автор: HUANG CHENG, WEI JUN, ZHOU HUA, YE GUILIN, XIE MINGSHENG, WANG TIANBA, YANG XIAOQIANG
Принадлежит:

The invention discloses a producing method of yellowing-resistant general anatase titanium dioxide. The method comprises the following steps: A, beating calcined anatase titanium dioxide with desalted water to prepare slurry, adding wetting agent sodium silicate, and then adjusting the slurry pH to 9-11; B, sanding to obtain anatase titanium dioxide initial product slurry with 325 mesh residues on a sieve being less than 0.01%; C, diluting with the desalted water to a concentration of 280-340g / L by TiO2, adjusting the pH to 9-11; D, heating up to 40-90 DEG C, then adding silicon salt within 10-60min, curing for 60-120min; adding aluminium salt, curing for 15-60min; adding the aluminum salt again, curing for 60-120min; and E, filtering, washing, drying, adding an organic surface treatment agent for gas pulverization to obtain the general titanium dioxide. The general titanium dioxide produced by the method has the characteristics of good lattice stability, strong water dispersion stability ...

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Номер записи: 16
23-06-2023 дата публикации

Method for increasing breadth of polarizing film

Номер: CN116299823A
Автор: XIE MINGSHENG, LI LEI, GUAN HAILONG, LU YANG, ZHANG JIANJUN
Принадлежит:

The invention discloses a method for increasing the breadth of a polarizing film, which comprises the following steps: a production raw material PVA element of the polarizing film is washed with water, then pre-dried and shaped, and then sent into a drying oven for drying, two correspondingly arranged hot air pipes are adopted for pre-drying and shaping, and the two hot air pipes are respectively positioned on the upper surface and the lower surface of the PVA element; the hot air pipes do not make contact with the PVA element, and the two hot air pipes blow hot air flow with the temperature of 80-120 DEG C towards the upper surface and the lower surface of the PVA element correspondingly. The defects in the prior art are overcome, the breadth shrinkage rate of the PVA element before and after drying is smaller than 10%, and the polarization degree and the transmittance of the PVA element are guaranteed.

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Номер записи: 17
06-01-2010 дата публикации

Evaporation technology of industrial sodium sulphide

Номер: CN0101618862A
Автор: SHI JIANPING, XIE MINGSHENG, JIANPING SHI, MINGSHENG XIE
Принадлежит:

The invention discloses an evaporation technology of industrial sodium sulphide. In the technology, two evaporators connected in series are mainly used for concentrating sodium sulphide solution; heat medium is transmitted into a first effective evaporator, and sodium sulphide solution in the evaporator is preliminarily concentrated into certain concentration; then, the preliminarily concentrated sodium sulphide solution is led into a second effective evaporator, and secondary steam generated by the first effective evaporator serves as a heat source to further concentrate the sodium sulphide solution in the second effective evaporator; when the concentration of the sodium sulphide solution reaches finished product concentration, the sodium sulphide solution is led out of the evaporator and is led into a finished product pot; in order to ensure that the sodium sulphide solution in the second effective evaporator is evaporated under negative pressure, the second effective evaporator is connected ...

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Номер записи: 18
24-06-2015 дата публикации

Preparation method of liranaftate

Номер: CN104725302A
Автор: HAO ERJUN, JIANG XIAOHAN, LIU YUXIA, FU ZHENG, XIE MINGSHENG, WANG HAIXIA, LI GONGXIN, ZHANG QIAN, GUO HAIMING, CUI FENGLING
Принадлежит:

The invention discloses a preparation method of liranaftate and belongs to the technical field of synthesis of an antifungal drug liranaftate. According to the key points of the technical scheme, the preparation method of liranaftate comprises the following four steps: synthesizing 6-methoxy-2-chloropyridine, synthesizing 6-methoxy-2-methylaminopyridine, synthesizing 5,6,7,8-tetrahydro-2-naphthoxy sulfuryl chloride, and synthesizing liranaftate. The preparation method of liranaftate has the advantages that reaction conditions are mild, operation is simple, a product is easy to separate and purify, yield is high, purity is high, residual quantity of related substances and organic solvent is low, medicinal standards can be met, environment friendliness is realized, ionic liquid can be taken as a reaction medium and can also realize catalytic action, and after reaction is finished, the ionic liquid can be recycled and can be effectively recycled for multiple times.

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Номер записи: 19
02-12-2015 дата публикации

Novel movable board house of lightweight steel construction

Номер: CN0204826758U
Автор: CHEN CHAOJING, XIE MINGSHENG, XIE ZHENGWEI, ZHANG ZHIYUAN, LI LI, YANG JUNGANG
Принадлежит:

The utility model discloses a novel movable board house of lightweight steel construction, include by 4 bottom end rails and 4 underframes that the corner fittings welding formed to and by 4 entablatures and 4 last frames that the corner fittings welding formed, underframe and the upper ledge stand fixed connection form a rectangle house framework on four corners that put up, rectangle house framework all around and the top install bounding wall and roofing respectively, the welding has a support frame in the underframe, is equipped with the floor on the support frame upper berth. The utility model discloses an each member adopts regularization preparation, and not only the cost of manufacture is low, and the equipment of being convenient for has improved the installation effectiveness, and each member is hollow structure in addition, like this greatly reduced the quality of whole movable board house, save manpower and material resources during the transportation. And simultaneously, the ...

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Номер записи: 20
02-12-2015 дата публикации

Novel steel constructs a tire supporting frame

Номер: CN0204826714U
Автор: CHEN CHAOJING, XIE MINGSHENG, XIE ZHENGWEI, ZHANG ZHIYUAN, LI LI, YANG JUNGANG
Принадлежит:

The utility model discloses a novel steel constructs a tire supporting frame, stand on 4 angles, the welding has and is the connector plates who arranges at the right angle more than two pairs on every stand, is provided with the bolt hole on connector plates, and the lacing between 4 stands passes through the bolt -up with connector plates and is connected formation lattice formula support body. The utility model discloses a connection can be dismantled to each member, and not only ann tears the convenience open, can reach the purpose that the turnover was used in addition, avoids the material extravagant. Therefore, the utility model is not only simple in structure, the installation is swift, the sound construction is reliable, can have enough to meet the need the use moreover, and environmental protection and energy saving are realized to the material saving cost.

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Номер записи: 21
04-04-2023 дата публикации

Eye shadow and preparation method thereof

Номер: CN115887252A
Автор: TIAN YONG, XIE MINGSHENG, XU GE, SHIN BOK-CHUL, TIAN YUNCAI, SHEN JIE, YUAN JUMAO
Принадлежит:

The invention discloses an eye shadow and a preparation method thereof, and the eye shadow comprises the following components in percentage by mass: 30-45% of filling powder which is a silicon elastomer and inorganic powder; 20%-30% of a coloring agent which contains titanium dioxide modified by polydimethylsiloxane; 3%-8% of an adhesive; 4%-8% of a film forming agent which is a mixture containing polydimethylsiloxane and trimethylsiloxy silicate ester; 20%-30% of skin moistening grease; 0.05% to 0.8% of an antioxidant; and 0.3%-1% of a preservative. According to the eye shadow provided by the invention, under the combined action of all the components, the eye shadow has the effects of resisting darkness, being close to the skin, preventing water and sweat and avoiding powder flying.

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Номер записи: 22
18-04-2023 дата публикации

Method for synthesizing chiral seven-membered ring bridged 3, 4-fused tricyclic indole

Номер: CN115974883A
Автор: XIE MINGSHENG, HOU CHENYING, XUE BAIYU, XIAOXIA WU, QU GUIRONG, GUO HAIMING
Принадлежит:

The invention discloses a method for synthesizing chiral seven-membered ring bridged 3, 4-fused tricyclic indole, and belongs to the technical field of organic synthesis. According to the preparation method, N-methyl-4-benzylamino indole 1 and beta, gamma-unsaturated alpha-keto ester 2 are taken as reactants, and Friedel-Crafts alkylation/N-hemiacetalation and dehydration cascade reaction are carried out under the catalysis of a Ni (II)-PyBPI complex, so that various chiral seven-membered ring bridged 3, 4-fused tricyclic indoles 3 are obtained. According to the method, N-methyl-4-benzylamino indole 1 is used as a nucleophilic reagent, and a six-membered ring bridged 4, 5-fused tricyclic indole byproduct 4 is also generated during the reaction. The method has the advantages of good yield, high regioselectivity, high enantioselectivity and the like.

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Номер записи: 23
25-08-2023 дата публикации

Method for synthesizing chiral indolizidine compound through [3+2] cycloaddition

Номер: CN116640139A
Автор: XIE MINGSHENG, GUO CUIMEI, WANG XINGYU, WU XIAOXIA, QU GUIRONG, GUO HAIMING
Принадлежит:

The invention discloses a method for synthesizing a chiral indolizidine compound through [3 + 2] cycloaddition, and belongs to the technical field of organic synthesis. A nitrogen-containing heterocyclic compound and D-A aminocyclopropane are used as reactants, diastereoselective and enantioselective [3 + 2] cycloaddition reactions are carried out under the catalysis of a Co (II)-PyIPI complex, and a plurality of chiral indolizidine compounds are obtained. The nucleophilic reagent in the method is a nitrogen-containing heterocyclic compound, and has the advantages of good yield, high diastereoselectivity, high enantioselectivity and the like.

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Номер записи: 24
16-12-2009 дата публикации

Lead-acid battery grid

Номер: CN0101604755A
Автор: MINGSHENG XIE, HUIQIANG YANG, ANFU REN, XIE MINGSHENG, YANG HUIQIANG, REN ANFU
Принадлежит:

The invention discloses a lead-acid battery grid. The grid adopts a foamed lead-based board; the surface of the board and the profile in any direction of the board form irregular convex-concave faces (distributed with small honeycomb pores in the board). Compared with a casting alloy grid in the same size, the weight of the grid is reduced by 20 to 50 percent; the area of the foamed lead-based grid is 5 to 15 times of that of the casting alloy grid so as to increase the contact area of the foamed lead-based grid and active substances, reduce internal resistance and improve the utilization rate of the active substances; and the foamed lead-based grid has large negative board capacity, the capacity increases 10 to 30 percent and the specific energy increases 15 to 35 percent. The foamed lead-based grid has good mechanical performance and controllable alloy compositions, and can use pure lead, lead calcium alloy, tin-lead alloy, lead-calcium tin-aluminium alloy and rare earth alloy.

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Номер записи: 25
16-02-2011 дата публикации

Diachylon apparent density measuring method

Номер: CN0101975723A
Автор: MINGSHENG XIE, WENCHAO ZHAO, SONGLIN LI, XIE MINGSHENG, ZHAO WENCHAO, LI SONGLIN
Принадлежит:

The invention discloses a diachylon apparent density measuring method, which comprises the following steps in sequence: A. weighing the weight of an empty steel cup; B. filling diachylon in the steel cup, wherein the diachylon is 3-5mm higher than the rim of the steel cup; C. placing the steel cup filled with the diachylon onto a vibration machine for compacting at a vibration amplitude of 50-100mm, a vibration frequency of 1-5 times/second, and a vibration time of 5-20s; D. after vibration, taking down the steel cup, cutting from the middle of the rim of the steel cup with a scraper, and then strickling the diachylon at the rim of the steel cup in all directions; E. weighing the weight of the whole steel cup and the diachylon after being processed by the Step D; and F. calculating out a apparent density value. The invention has the advantages that by using the vibration machine, the vibration amplitude, the frequency and the time are specified, and the apparent density of the diachylon ...

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Номер записи: 26
25-03-2015 дата публикации

Method for establishing non-cyclic nucleoside through selective ring opening of purine to vinylcyclopropane

Номер: CN104447749A
Автор: GUO HAIMING, DU CONG, XIE MINGSHENG, WANG DONGCHAO, NIU HONGYING, QU GUIRONG
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The invention discloses a method for establishing non-cyclic nucleoside through selective ring opening of purine to vinylcyclopropane. The reaction equation is as shown in the description. A target product can be obtained with high yield and high chemical selectivity by using a specific catalyst. The method has the advantages that the operation is simple, the reaction condition is mild, the catalyst is cheap and easy to obtain, and a simple and practical synthesis method is provided for synthesis of non-cyclic nucleoside analogs.

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Номер записи: 27