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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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Форма поиска

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 25. Отображено 25.
16-12-2015 дата публикации

Ultraviolet solid laser

Номер: CN0204885817U
Автор: XIAO XUHUI, ZHOU YONG, CUI XIAOMIN
Принадлежит:

The utility model discloses an ultraviolet solid laser, include that inGaN base or gaN base semiconductor laser diode is as pumping source, focusing lens, pr3+: the solid -state laser crystal of YLF, wavelength interface element, the F -P etalon, the outgoing mirror, doping pr3+'s solid -state laser crystal is under inGaN base or gaN base semiconductor laser diode's pumping, can vibrate at the 700 -800nm within range, can realize from the transition of energy level 3P0 to energy level 3F4, thereby output 720nm's laser, and the wavelength interface element that the accessible has periodic farmland polarization reversal structure produces the second order harmonic, and obtain 360nm's ultraviolet laser expeditiously, and the simple structure of laser instrument, the loss is less.

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Номер записи: 1
17-12-2008 дата публикации

Extraction fractional distillation for separating pyrocatechol in furanol

Номер: CN0101323561A
Автор: ZHANG JIANYU, WANG XIAOGUANG, XIAO XUHUI, WANG YU, FENG JIANDONG, JIANYU ZHANG, XIAOGUANG WANG, XUHUI XIAO, YU WANG, JIANDONG FENG
Принадлежит:

The invention discloses a method for separating catechol pyrocatechol from furan phenol (2, 3-dihydrogen-2, 2-dimethyl-7-hygroxy benzofuran) by the way of extraction and rectification with high efficiency, low cost and simple and convenient unit operation. Separating agent chosen is a compound with small molecular structure and stereospecific blockade and with boiling point of 240 DEG C to 320 DEG C/101.33KPa, such as phenol, alcohol, ether, phenolic ether, alcohol ether, etc. with hygroxy or ether bond, specifically as diglycol, para-tert-butylcatechol, 3, 4'-dichlorine diphenyl ether, etc., and the dosage of the separating agent is 0.5 percent to 5.0 percent of the mass of crude products. The method of the invention can increase rectification yield by more than 5.0 percent, shorten rectification time by 25 percent and increase product purity to more than 99.0 percent.

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Номер записи: 2
29-12-2010 дата публикации

Method for synthesizing furanol by catalyzing basic ferric carboxylate

Номер: CN0101475547B
Автор: YU WANG, QIANZHENG XIONG, XUHUI XIAO, AIXI HU, XIAOHONG KONG, JIANYU ZHANG, XIAOGUANG WANG, XIANFU LUO, WANG YU, XIONG QIANZHENG, XIAO XUHUI, HU AIXI, KONG XIAOHONG, ZHANG JIANYU, WANG XIAOGUANG, LUO XIANFU
Принадлежит:

The invention discloses a method for synthesizing benzofuranol by using basic ferric carboxylate, the method comprises that a raw material 2-methyl allyloxy phenol under catalysis of the basic ferric carboxylate is synthesized into the benzofuranol, namely 2,3-dihydro-2,2-dimethyl-7-benzofuranol, and a reaction formula is shown as the right formula. The product benzofuranol obtained by the methodhas reaction yield more than or equal to 80.0 percent in terms of the 2-methyl allyloxy phenol. The method has the characteristics of high yield, short reaction time, low cost, convenient operation, low environmental protection requirement on post-treatment, and the like.

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Номер записи: 3
28-04-2023 дата публикации

Medicine taking identification method and device, electronic equipment and storage medium

Номер: CN116030421A
Автор: XIAO XUHUI, TIAN MENGCHAO
Принадлежит:

The invention relates to the technical field of data processing, and provides a medicine taking identification method and device, electronic equipment and a storage medium. The medicine taking identification method comprises the steps of identifying whether a medicine taking behavior exists or not based on a first image or a first video of a first target area, wherein the first target area comprises a medicine storage area; if the medicine taking behavior exists, a second image or a second video of a second target area is triggered to be obtained, and the second target area comprises a cashier area; if it is identified that the cashier behavior exists based on the second image or the second video, whether the medicine taking behavior is associated with the cashier behavior or not is judged; and if the medicine taking behavior is associated with the cashier behavior, identifying the medicine taking behavior as one time of effective medicine taking. The technical problem that in the prior ...

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Номер записи: 4
30-12-2015 дата публикации

Transfer Q laser instrument passively with wavelength controlling means

Номер: CN0204927792U
Автор: XIAO XUHUI, ZHOU YONG, CUI XIAOMIN
Принадлежит:

The utility model discloses a transfer Q laser instrument passively with wavelength controlling means, including pumping source, a plurality of reflection element constitute the resonant cavity, solid -state gain medium - places in the resonant cavity, a saturated absorbing body is placed in the resonant cavity to and a wavelength controlling means places in the saturated absorbing body back vibration wavelength of control laser instrument, through setting up wavelength controlling means, can set up the vibration wavelength of laser instrument into a default for the laser instrument does not receive influence of temperature, exports the laser of fixed wave length, the utility model discloses peak power is about 0.5MW, and the bandwidth is about 0.7nm's pulsed laser.

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Номер записи: 5
24-11-2010 дата публикации

Method for recycling methylamine hydrochloride

Номер: CN0101891652A
Автор: QIANZHENG XIONG, XUHUI XIAO, YANGLING ZANG, XIAOHONG KONG, PING LI, YAN WANG, YONGQIANG YANG, HONGJIAN GAO, XIONG QIANZHENG, XIAO XUHUI, ZANG YANGLING, KONG XIAOHONG, LI PING, WANG YAN, YANG YONGQIANG, GAO HONGJIAN
Принадлежит:

The invention discloses a method for recycling methylamine hydrochloride to prepare methylamino formyl chloride. The methylamino formyl chloride is prepared by adopting a high-pressure reaction, using an organic solvent as a reaction solvent, and reacting the methylamine hydrochloride with phosgene, wherein the yield in terms of the methylamine hydrochloride is more than or equal to 90.0 percent. The method for recycling the methylamine hydrochloride has a simple process and a mild reaction condition; the used solvent is suitable for industrialized requirements; and reaction solution is directly used without purification after filtration and phosgene removal, and the three-waste amount is greatly reduced.

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Номер записи: 6
30-12-2015 дата публикации

Transfer Q laser instrument passively with high peak power

Номер: CN0204927794U
Автор: XIAO XUHUI, ZHOU YONG, CUI XIAOMIN
Принадлежит:

The utility model discloses a transfer Q laser instrument passively with high peak power, including pumping source, a plurality of reflection element constitute the resonant cavity, solid -state gain medium - places in the resonant cavity, a saturated absorbing body is placed in the resonant cavity to reach a temperature control device and place around solid -state gain medium -, make solid -state gain medium - keep near a default temperature, through keeping solid -state gain medium - can improve quantum efficiency near a default temperature, improve the peak output power of pulse of output laser, obtained the pulsed laser who has high peak power.

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Номер записи: 7
09-12-2015 дата публикации

Ultraviolet solid laser

Номер: CN0204858265U
Автор: XIAO XUHUI, ZHOU YONG, CUI XIAOMIN
Принадлежит:

The utility model discloses an ultraviolet solid laser, including the solid -state laser crystal of liYF4, wavelength interface element, F -P etalon, the outgoing mirror that inGaN base semiconductor laser diode mixes as pumping source, focusing lens, pr3+ and er3+ altogether, pr3+: the solid -state laser crystal of liYF4 who mixes altogether with er3+ is under inGaN base semiconductor laser diode's pumping, can vibrate at the 700 -800nm within range, can realize from the transition of energy level 3P0 to energy level 3F4, thereby output 720nm's laser, and the wavelength interface element that the accessible has periodic farmland polarization reversal structure produces the second order harmonic, and obtain 360nm's ultraviolet laser expeditiously, and the simple structure of laser instrument, the loss is less.

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Номер записи: 8
16-12-2015 дата публикации

Ultraviolet pulse solid laser based on intracavity frequency doubling technique

Номер: CN0204885813U
Автор: XIAO XUHUI, ZHOU YONG, CUI XIAOMIN
Принадлежит:

The utility model discloses an ultraviolet pulse solid laser based on intracavity frequency doubling technique, including pumping source, optical coupling system, mix neodymium ion YAG laser crystal, mix cr4+ ionic YAG laser wafer, LBO second harmonic generation crystal, outgoing mirror, focusing lens, BBO second harmonic generation crystal, ultraviolet light filter. The structural design of laser instrument is simple, the system is small, firm to practice thrift the cost.

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Номер записи: 9
16-12-2015 дата публикации

266nm's ultraviolet pulse solid laser device

Номер: CN0204885816U
Автор: XIAO XUHUI, ZHOU YONG, CUI XIAOMIN
Принадлежит:

The utility model discloses a 266nm's ultraviolet pulse solid laser device, including pumping source, optical coupling system, mix neodymium ion YAG laser crystal, mix cr4+ ionic YAG laser wafer, outgoing mirror, convex lens, KTP second harmonic generation crystal, focusing lens, BBO second harmonic generation crystal, beam splitting Prism. The structural design of laser instrument is simple, the system is small, firm to practice thrift the cost.

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Номер записи: 10
29-08-2023 дата публикации

Shunting control valve with pressure relief function

Номер: CN116658636A
Автор: ZHOU LIUZHONG, XIAO XUHUI, SUN QIANG
Принадлежит:

The invention relates to the field of diverter valves, and particularly discloses a diverter control valve with a pressure relief function, which comprises a valve body and a valve seat arranged in the valve body, the valve seat is provided with a plurality of circulation holes communicated with an inner cavity of the valve body, a valve cover is arranged above the valve body, a valve rod is arranged on the valve cover in a penetrating manner, the valve rod extends into the valve body and is connected with a core rod assembly through a connecting piece, and the core rod assembly is connected with a pressure relief valve. The core rod assembly comprises a plurality of core rods with different lengths, the number of the core rods is the same as that of the circulation holes, and the valve rod drives the core rods to move upwards to be matched with the circulation holes to achieve flow division or pressure relief of the flow division control valve. The problem that a traditional diverter valve ...

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Номер записи: 11
13-06-2023 дата публикации

Laser refractive index tuning method, system and device and laser

Номер: CN116260028A
Автор: CUI XIAOMIN, XIAO XUHUI, WANG YAO
Принадлежит:

The invention discloses a laser refractive index tuning method, system and device and a laser, and the method comprises the steps: carrying out the preprocessing of an original laser source, and obtaining a to-be-tuned laser beam; an optical tuning cavity is arranged along an optical path of a laser beam to be tuned, a tuning unit is inserted into the optical tuning cavity, the laser beam to be tuned passes through the tuning unit, and the tuning unit tunes the laser beam to be tuned by using current and outputs a tuned laser beam; and a re-filtering unit and a detection unit are arranged at the output end of the to-be-tuned laser beam penetrating through the tuning unit. After an original laser source is preprocessed, a regular laser beam is obtained, the regular laser beam is introduced into an optical tuning cavity and is subjected to current tuning through a tuning unit, the refractive index in the tuning unit is changed by the current, and then tuning of the laser beam is achieved.

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Номер записи: 12
05-05-2023 дата публикации

Preparation method of DDM-FG compound and application of DDM-FG compound in bone graft material

Номер: CN116059444A
Автор: BAO JIBO, XIE ZHIGANG, WU YIRONG, FU XUNAN, YANG SHENGYIN, XIAO XUHUI, REN XIAOBIN
Принадлежит:

The invention discloses a preparation method of a DDM-FG compound and application of the DDM-FG compound in bone transplantation materials, and particularly relates to application of the DDM-FG compound in alveolar bone defect bone transplantation repair. According to the present invention, with the addition of the FG, the DDM is not easily loosened and displaced, the operability of the DDM is improved, and especially when the ratio is 1: 0.5, the DDM-FG has excellent molding property. The porosity and the in-vitro degradation rate of the DDM group, the 1: 0.1 group and the 1: 0.5 group basically meet the requirements of being used as a bone graft material. When the DDM-FG and the MC3T3-E1 in a ratio of 1: 0.1 are co-cultured, the cell adhesion promoting effect is optimal. The capability of promoting MC3T3-E1 cell osteogenic differentiation of the DDM-FG compounds in different proportions is superior to that of DDM and FG, the influence on ALP activity and the formation effect of mineralized ...

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Номер записи: 13
08-12-2010 дата публикации

Aluminium dicarboxylate phenol and preparation method and use thereof

Номер: CN0101418008B
Автор: HU AIXI, WANG XIAOGUANG, WANG YU, ZHANG JIANYU, YE JIAO, XIAO XUHUI, LUO XIANFU, AIXI HU, XIAOGUANG WANG, YU WANG, JIANYU ZHANG, JIAO YE, XUHUI XIAO, XIANFU LUO
Принадлежит:

The invention discloses an aluminum phenol dicarboxylate with a chemical structural formula shown as (I). One method for preparing the aluminum phenol dicarboxylate is as follows: aluminum isopropanol fatty acid salt and phenol are stirred at a certain temperature and subjected to rotary evaporation to reclaim isopropanol to give aluminum phenol discarboylate (I). Another method for preparing thealuminum phenol dicarboxylate is as follows: basic aluminum carboxylate and phenol are stirred at a certain temperature, dehydrated by rotary evaporation and cooled to give aluminum phenol discarboylate (II). The aluminum phenol dicarboxylate is a catalyst for reaction of 2-(2- methyl allyloxy) phenol at a temperature of between 165 DEG C and 200 DEG C for synthesis of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran( abbreviated as benzofuran), with a yield of more than 82.0 percent. (RCO2)2ALOAr(I).

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Номер записи: 14
14-10-2015 дата публикации

Submarine cable restores between attended operation

Номер: CN0204706840U
Автор: WANG ZHIQIANG, LU SHIJUN, XU WEI, JIA XUEZHI, XIAO XUHUI, ZHAO WENFENG, GAO XINGGUO, XU ZHONGYONG, JIANG SONGZHU, LIU FUYIN
Принадлежит:

The utility model discloses a submarine cable restores between attended operation uses when being applicable to submarine cable troubleshooting. Simultaneously, still can use reform transform in other marine constructions of submarine cable, in the prefabricated work, providing the control by temperature change has, light -operated operation environment's space and specialized tool parking space. This operation room includes wall body, roof and ground, and the personnel that are equipped with on the wall body go out to cross the threshold and extra large cable penetrates the door, and the illumination lamps and lanterns are equipped with on the roof, the indoor air conditioner that is equipped with, and indoor ground is equipped with extra large cable and stays and put logical groove, and the outside four corners in roof is equipped with the lug, and the external bottom four corners in room is equipped with fixed ear. Be equipped with facility commonly used and material in the operation ...

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Номер записи: 15
23-03-2018 дата публикации

Upper jaw hole mucous membrane promotes bone meal conveyer

Номер: CN0207125800U
Автор: LI ZILIANG, HE YONGWEN, XIE ZHIGANG, XIAO XUHUI, XIE LIANGKUN, BAO JIBO, MA NAN, YANG ZHIDE
Принадлежит: UNIV KUNMING MEDICAL, KUNMING MEDICAL UNIVERSITY

The utility model provides an upper jaw hole mucous membrane promotes bone meal conveyer relates to medical instrument's technical field, and the operating head of this upper jaw hole mucous membranepromotes bone meal conveyer mucous membrane at the bottom of being used for stretching into upper jaw hole bottom to promote the hole and the body of AND operation head rigid coupling are provided with the bone meal propelling movement subassembly that is used for to filling bone meal in at the bottom of the hole in the body, and the meal outlet of bone meal propelling movement subassembly is located the below of operating head. This upper jaw hole mucous membrane promotes bone meal conveyer can be used for upper jaw hole to promote the art outward, promotes the mucous membrane among the art operation process and packs the bone fast and transplant the material and provide a suitable instrument for upper jaw hole promotes outward.

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Номер записи: 16
23-06-2023 дата публикации

Laser output quantity tuning method, system and device and laser

Номер: CN116315989A
Автор: CUI XIAOMIN, XIAO XUHUI, WANG YAO
Принадлежит:

The invention discloses a laser output quantity tuning method, system and device and a laser, the system comprises a tuning system and a laser resonant cavity, the tuning system is used for adjusting laser output power, the laser resonant cavity is arranged along an optical path of an original laser beam, and the tuning method further comprises the following steps: dividing the original laser beam into two individual light sources; and performing real-time detection on the output power of the individual light source to obtain the real-time value of the output power of the current light source. In the embodiment of the invention, an original laser beam is divided into two equally-divided individual light sources, then the output power of the equally-divided individual light sources is measured, then the output power of all the individual light sources can be obtained, and then the output power of the individual light sources is subjected to data analysis to obtain output power tuning information ...

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Номер записи: 17
21-10-2015 дата публикации

Gas welding, gas cutting bottle collection dress air feed case

Номер: CN0204717350U
Автор: XIAO XUHUI, GAO TAO, ZHAO WENFENG, WANG ZONGYU, JIANG SONGZHU, WANG WENTONG, ZHANG JIAN, XUE KEHUA, GUO CHANGWEI
Принадлежит:

The utility model discloses a gas welding, gas cutting bottle collection dress air feed case can cut the gas welding oxygen cylinder and the acetylene cylinder collection dress air feed of usefulness, is particularly useful for the various gas weldings of offshore platform and cuts maintenance construction, convenient transportation and construction. Box, baffle and air feed assembly are drawn together to this air feed case and bag, and the box the inside is equipped with the baffle, and the air feed assembly passes through the valve of the interior gas cylinder of hose and box and is connected, the air feed assembly is equipped with the collection chamber, the peripheral wall mounting suction nozzle of collection chamber, and this suction nozzle passes through the hose to be connected with the valve of gas cylinder, installs the outlet duct on the top cap of collection chamber, is equipped with the overhead control valve on the outlet duct, passes through the hose with the outlet duct ...

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Номер записи: 18
08-07-2009 дата публикации

Method for synthesizing furanol by catalyzing basic ferric carboxylate

Номер: CN0101475547A
Автор: WANG YU, ZHANG JIANYU, WANG XIAOGUANG, HU AIXI, LUO XIANFU, XIAO XUHUI, XIONG QIANZHENG, KONG XIAOHONG, YU WANG, JIANYU ZHANG, XIAOGUANG WANG, AIXI HU, XIANFU LUO, XUHUI XIAO, QIANZHENG XIONG, XIAOHONG KONG
Принадлежит:

The invention discloses a method for synthesizing benzofuranol by using basic ferric carboxylate, the method comprises that a raw material 2-methyl allyloxy phenol under catalysis of the basic ferric carboxylate is synthesized into the benzofuranol, namely 2,3-dihydro-2,2-dimethyl-7-benzofuranol, and a reaction formula is shown as the right formula. The product benzofuranol obtained by the method has reaction yield more than or equal to 80.0 percent in terms of the 2-methyl allyloxy phenol. The method has the characteristics of high yield, short reaction time, low cost, convenient operation, low environmental protection requirement on post-treatment, and the like.

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Номер записи: 19
01-12-2010 дата публикации

Watchdog resetting system and resetting method thereof

Номер: CN0101901168A
Автор: XIANGYANG LIU, CHAOFENG YANG, YANPING LI, GUODONG LI, XUHUI XIAO, LIU XIANGYANG, YANG CHAOFENG, LI YANPING, LI GUODONG, XIAO XUHUI
Принадлежит:

The invention is suitable for the technical field of self restoration and provides a watchdog resetting system and a resetting method thereof. The watchdog resetting system comprises a CPU (Central Processing Unit), a watchdog unit and a resetting unit which are sequentially connected and also comprises an operating system unit, an operating system monitoring unit, one or more work process units and one or more work process monitoring units, wherein the operating system monitoring unit is used for ensuring that the CPU is controlled not to carry out dog feeding on the watchdog unit in a timing period when monitoring the breakdown of the operating system unit; and the work process monitoring units are used for ensuring that the CPU is controlled not to carry out dog feeding on the watchdog unit in a timing period when monitoring the breakdown of the work process units. In the invention, the start of the CPU, the working state of the operating system unit and working states of some main work ...

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Номер записи: 20
03-06-2009 дата публикации

Method for synthesizing benzofuranol by catalyzing with basic aluminum carboxylate

Номер: CN0101445497A
Автор: ZHANG JIANYU, WANG YU, HU AIXI, WANG XIAOGUANG, XIAO XUHUI, LUO XIANFU, JIANYU ZHANG, YU WANG, AIXI HU, XIAOGUANG WANG, XUHUI XIAO, XIANFU LUO
Принадлежит:

The invention discloses that basic aluminum carboxylate can catalyze 2-methallylloxy phenol to synthesize 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran (benzofuranol for short). Specifically, the 2-methallylloxy phenol reacts with an organic solvent at the temperature of 150-200 DEG C for 1-6h to synthesize the benzofuranol under the catalysis of the basic aluminum carboxylate (the consumption is 1.0-6.0% of the weight of the 2-methallylloxy phenol), and the yield is higher than 80.0%. The method has the characteristics of high yield, short reaction time, low cost, convenient operation and the like.

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Номер записи: 21
29-04-2009 дата публикации

Aluminium dicarboxylate phenol and preparation method and use thereof

Номер: CN0101418008A
Автор: HU AIXI, WANG XIAOGUANG, LUO XIANFU, ZHANG JIANYU, WANG YU, XIAO XUHUI, YE JIAO, AIXI HU, XIAOGUANG WANG, XIANFU LUO, JIANYU ZHANG, YU WANG, XUHUI XIAO, JIAO YE
Принадлежит:

The invention discloses an aluminum phenol dicarboxylate with a chemical structural formula shown as (I). One method for preparing the aluminum phenol dicarboxylate is as follows: aluminum isopropanol fatty acid salt and phenol are stirred at a certain temperature and subjected to rotary evaporation to reclaim isopropanol to give aluminum phenol discarboylate (I). Another method for preparing the aluminum phenol dicarboxylate is as follows: basic aluminum carboxylate and phenol are stirred at a certain temperature, dehydrated by rotary evaporation and cooled to give aluminum phenol discarboylate (II). The aluminum phenol dicarboxylate is a catalyst for reaction of 2-(2- methyl allyloxy) phenol at a temperature of between 165 DEG C and 200 DEG C for synthesis of 2,3-dihydro-2,2-dimethyl-7- hydroxybenzofuran( abbreviated as benzofuran), with a yield of more than 82.0 percent. (RCO2)2ALOAr(I).

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Номер записи: 22
26-08-2009 дата публикации

Preparation method of o-isopropoxyphenol

Номер: CN0101514147A
Автор: WANG YU, WANG XIAOGUANG, YANG CHUNHUA, ZHANG JIANYU, XU JIANBING, ZANG YANGLING, XIAO XUHUI, LI PING, KONG XIAOHONG, WANG YAN, LUO XIANFU, YU WANG, XIAOGUANG WANG, CHUNHUA YANG, JIANYU ZHANG, JIANBING XU, YANGLING ZANG, XUHUI XIAO, PING LI, XIAOHONG KONG, YAN WANG, XIANFU LUO
Принадлежит:

The invention discloses a preparation method of o-isopropoxyphenol. The method is characterized by taking catechol and 2-chloropropane as raw materials, taking a binary-immiscible organic solvent system as a reaction solvent, and preparing the o-isopropoxyphenol by reaction at normal pressure or slight positive pressure in the presence of an acid binding agent and a catalyst. The reaction yield is more than or equal to 94.0% (based on the catechol). The preparation method has the advantages of cheap raw materials, simple process, mild reaction condition, industrialization applicable solvent and low content of the catechol in the reaction solution, thus reducing difficulty of product refinement and greatly reducing energy consumption and three-waste volume.

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Номер записи: 23
18-01-2012 дата публикации

Method for synthesizing benzofuranol by catalyzing with basic aluminum carboxylate

Номер: CN0101445497B
Автор: HU AIXI, WANG YU, LUO XIANFU, WANG XIAOGUANG, ZHANG JIANYU, XIAO XUHUI, AIXI HU, YU WANG, XIANFU LUO, XIAOGUANG WANG, JIANYU ZHANG, XUHUI XIAO
Принадлежит:

The invention discloses that basic aluminum carboxylate can catalyze 2-methallylloxy phenol to synthesize 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran (benzofuranol for short). Specifically, the 2-methallylloxy phenol reacts with an organic solvent at the temperature of 150-200 DEG C for 1-6h to synthesize the benzofuranol under the catalysis of the basic aluminum carboxylate (the consumption is 1.0-6.0% of the weight of the 2-methallylloxy phenol), and the yield is higher than 80.0%. The method has the characteristics of high yield, short reaction time, low cost, convenient operation and thelike.

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Номер записи: 24
09-12-2015 дата публикации

Transfer Q laser instrument passively with temperature control device

Номер: CN0204858261U
Автор: XIAO XUHUI, ZHOU YONG, CUI XIAOMIN
Принадлежит:

The utility model discloses a transfer Q laser instrument passively with temperature control device, which comprises a pumping source, a plurality of reflection element constitute the resonant cavity, solid -state gain medium - places in the resonant cavity, a saturated absorbing body is placed in the resonant cavity, and a temperature control device places around solid -state gain medium -, make solid -state gain medium - keep near a default temperature, through keeping solid -state gain medium - near a default temperature, can improve quantum efficiency, improve the peak output power of pulse of output laser, obtain peak power and be about 0.5MW, pulse width 80ps's pulsed laser.

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Номер записи: 25