Preparation method of tobacco black shank inoculum

The invention discloses a method for preparing tobacco black shank bacterium inoculum. The method comprises the following steps: culturing tobacco black shank bacteria sclertium at constant temperature of 28 DEG C for 5 to 6 days; placing the culture in a fluid nutrient medium for 7 to 8 days at constant temperature of 28 DEG C at 150 revolutions/minute; placing the fluid bacterium solution in a solid medium for 10 to 12 days at constant temperature of 28 DEG C, according to the volume ratio of between 3 and 5 percent; crushing the qualified solid culture into the sclertium; evenly mixing the scertium with rough rice bran and rough wheat bran; spreading the mixture for ventilating and drying, thereby obtaining the required tobacco black shank bacterium inoculum after the moisture is reduced to 35 to 40 percent. By the technology, the culture period can be shortened by 10 to 15 days, and the inoculum obtained by culturing can be easily dispersed with large number of effective infections, ...

Integrated efficient pollution-free vehicle

Atmosphere pressure sintered microporous carborundum graphite self-lubricating seal ring and method for manufacturing same

The invention provides a micropore siliconcarbide graphite self-lubricating seal ring which is sintered at normal pressure, comprising 90-96 weight% of siliconcarbide powder, 2-8 weight% of graphite powder, 2-5 weight% of polyvinyl alcohol. The preparation method thereof comprises: weighting the materials and uniformly mixing the siliconcarbide powder and graphite powder; adding polyviny alcohol into deionized water and heating to melt, then adding the uniform mixture powder into the water solution of polyvinyl alcohol and stirring into slurry, grinding at normal temperature; laying the slurry in a spry drying tower to granulate and in mould to perform pressure moulding; sintering the moulded products in vacuum high-temperature furnace; cooling to normal temperature. The siliconcarbide seal ring not only contains free graphite, but also contains crosslinking pore formed by bonding the siliconcarbide and polyvinyl alcohol to increase elasticity and improve the self-lubrication of siliconcarbide ...

Process for recycling and manufacturing copper granule from waste and old electric wire and cable

The invention discloses a technological method for producing copper rice grains by recovering waste wires and cables based on an improvement of the prior production mode that the waste wires and cables recover copper raw materials. The technological method has low cost, small energy consumption, less discharge and no waste pollution, meets the requirement of circular economy development, and can obtain a copper rice grain product the purity of which reaches 99.9 percent. The technological process comprises the steps of classification inspection, loading, primary crushing, secondary crushing, and vibration separation; the angle of a vibration sieve is adjusted according to the content of copper and the wire diameter, and the copper rice grains and plastic are subjected to optional separation through vibration sieving; a material from a mixed material port flows into an air suction pipe, and is sent for secondary crushing through a circulating air pipe; the air suction pipe above the vibration ...

Thermostatic hydroponic identification method for resistance of tobacco black shank at seedling stage

The invention relates to a thermostatic hydroponic identification method for the resistance of tobacco black shank at a seedling stage. The method comprises the following steps of: establishing a water-insulating circulating floating pool; transplanting tobacco seedlings; preparing inoculum; and inoculating, investigating and grading illness states and estimating resistance. The invention has the advantages of rapid paroxysm, good and reliable result repetitiveness and no other disease interference, substitutes an identification result for a traditional land identification result at a seedling stage and can identify a great amount of materials in a small area for many times in a year, improve the result reliability, shorten the identification period and save the identification cost.

Oil smoke purifier suitable for updraft smoke exhauster

The invention belongs to the field of oil smoke purifying technology for catering trade, in particular to an oil smoke purifier suitable for updraft smoke exhausters. The oil smoke purifier comprises a case, a catalytic unit and a heating unit, wherein the catalytic unit is arranged in the case, and the heating unit is installed on the case. The catalytic unit comprises a front metallic pipe binding unit, a back metallic pipe binding unit and a plurality of metallic pipes coated with catalysts which comprise one or several of copper oxide, chromic oxide, manganese oxide and nickel oxide, silver and palladium. The metallic pipes are adopted by the oil smoke purifier as carriers of the catalysts to be favorable for circulation of oil smoke, thus the oil smoke can be discharged to the outdoors easily. Meanwhile, the metallic pipes can be heated easily to enable the catalysts to quickly achieve the temperature needed by reaction. The chemical catalytic method is adopted to convert oil smoke ...

Method for rapidly breeding smooth prairie dock

The invention discloses a method for rapidly breeding a smooth prairie dock, belonging to a plant cultivating technology and comprising the steps of: preparing a culture medium, taking and preprocessing an explant, carrying out isolated culture, and domesticating and transplanting a rooting seedling. Compared with the traditional method, the invention has the advantages of being capable of saving a large quantity of perennial parent plants required by root-cutting propagation by using a tender shoot as the explant, being beneficial to the culture of the perennial plants by using the tender shoot as the explant without influencing the growth of the original plants, being capable of breeding hundreds of seedlings by taking one tender shoot, wherein 15-20 plants can be formed through cutting at most when one perennial plant is bred traditionally. The smooth prairie dock is bred by using the method, thus the breeding quantity can be greatly improved, the massive and industrial seedling culturing ...

Biological specimen fan

The invention discloses a biological specimen fan which mainly comprises a fan body (1). The biological specimen fan is characterized in that a biological specimen (2) is stuck on the fan surface of the fan body (1), and a plastic film (3) for preventing the biological specimen (2) from exposure to moisture is hot pressed on the entire fan surface of the fan body (1). The specimen of an animal ora plant is directly stuck on the fan surface of the paper fan, and is covered by the organic plastic film, so that the paper fan has high ornamental value.

Production method of 5754 aluminum alloy blank using cast rolling machine

Oxygenation type coated and pilled tobacco seed and preparing method thereof

The invention discloses an oxygenation type coated and pilled tobacco seed and preparing method thereof. Before the tobacco seed is coated and pilled, the tobacco seed can be performed for oxygenation initiating by using 0.5 %-1.0% calcium dioxide turbid fluid. When coating and pilling, 10.0 %-20.0% of calcium dioxide can be added in a seed agent. The oxygenation type coated and pilled tobacco seed made by the invention can be applied to the tobacco float seedling cultivation, the invention has advantages of high seed activities, short germinating time, trim emergence of seedlings and high emergence rate, the operation is simple, the cost is low, the popularization and the application of the technology have good social and economic benefits.

Method for researching entry of systemic compound to rape seeds

The invention discloses a method for researching entry of a systemic compound to rape seeds. The method comprises the following steps of: 1) preparing fluorescent indicator and distilled water into uniform aqueous solution of less than or equal to 2mg/ml; 2) putting the rape seeds into the uniform aqueous solution by groups under the dark condition of 20 DEG C, and soaking the seeds for 8 hours, 12 hours, 16 hours, 20 hours and 24 hours respectively, wherein the rape seeds soaked into water for 24 hours are used as contrast; and 3) taking out the rape seeds after the seed soaking is finished, quickly flushing the rape seeds by using water and airing the rape seeds, transversely cutting the rape seeds along the hila, observing the fluorescence performance in the rape seeds under fluorescence microscope exciting light, and judging the entering path of the fluorescent indicator to the rape seeds and the reaching parts in different time according to the positions of fluorescence displayed on ...

Method for preparing tensile sample of steel cord

The invention provides a method for preparing a tensile sample of a steel cord. The method comprises the following steps: (1) fixing; (2) backtwisting; (3)hot galvanizing; and (4) casting. The method has the advantages of simple and flexible operation, low production cost and accurate test result; and the sample of the steel cord can be prepared according to an actually needed length, a special tensile test clamp for the steel cord is not needed for the sample, so that the test can be carried out on the common tensile tester.

Medium pollen, preparation method and use thereof

The invention discloses a medium pollen, a preparation method and the application thereof. The preparation method is as follows: tobacco male parent anther is collected and aired to cause the anther to loose power, a 50 mesh sieve is used for sieving out pollen and pollen sac, the pollen sac is collected, dried at 40-50 DEG C for 20-24 hours, and ground into powder; the pollen sac powder and the pure tobacco pollen are mixed evenly according to 1:1-4 of volume ratio, and the required medium pollen is obtained. The medium pollen is dipped by a cotton swab or a brush pen and applied to the female parent tobacco flower column head for artificial pollination. The use of the medium pollen improves effective utilization ratio of the tobacco pollen, decreases application amount of the pure pollen, saves manpower and material resources for collecting pollen, decreases planting area of the tobacco male parents, and lowers production cost of seed production by hybridization. The popularization and ...

Long life accumulator and method for making electric vehicle capable of long distance drive

The technical proposal of the invention provides a long-life storage battery, which comprises a filling opening, displays and a wiring terminal. The battery is characterized in that one side of each filling opening is provided with a display eye; and the display is arranged in each display eye, so as to prompt people to timely maintain a battery panel to achieve the aim of prolonging the service life of the storage battery. The invention also provides a method for enabling an electric vehicle to run long distance, which comprises a storage battery distributor, a power up station and the electric vehicle. The method is characterized in that the storage battery distributor provides a special storage battery for the power up station; the power up station replaces the charged storage battery for the coming and going electric vehicle running out electricity; detached storage batteries are filtered, maintained and charged by the power up station, and then are replaced for various coming and going ...

Image-based method for reconstructing three-dimensional models of fruit tree limbs

The invention discloses an image-based method for reconstructing three-dimensional models of fruit tree limbs, comprising the following steps: adopting an acquisition device to acquire the color information values of the images of the fruit tree limbs in the current visual field and corresponding spatial position coordinate values; carrying out thinning, pruning and branch segmenting processes on the images of the fruit tree limbs; carrying out multi-segment fitting on the processed images to reduce the modeling data and discomposing the shapes of the fruit tree limbs into a plurality of modules in single shape; and combining the modules in single shape to complete modeling. The method reduces most redundant data during modeling, shortens the modeling time, reduces the mistakes, can adjust the accuracy of the modules and the connection relations among the modules according to the actual demands to realize controlling and adjusting the accuracy of the models at any time, and satisfies the ...

Physiological race identification method of tobacco phytophthora parasitica in disease nursery

A physiological race identification method of tobacco phytophthora parasitica in disease nursery can identify the physiological race of tobacco phytophthora parasitica in disease nursery as soon as possible by means of combining the identification of disease-resistant reaction of host in fields and collection of color change of strains on a TTC solid culture medium flat plate, realize the identification of the physiological race type of tobacco phytophthora parasitica in the existing disease nursery, then directionally carry out the researches such as tobacco disease-resistant germplasm resources screening, breeding of new variety of tobacco and the like, and provide basis for the comprehensive prevention and treatment of tobacco phytophthora parasitica and the establishment of the targetof breeding for disease resistance. The method is economical and practical and has favorable market application prospect.

Milk beer beverage and method for making same

The invention discloses a milk beer beverage and method for making same by mixing beer, yoghourt, stabilizing agent and sweetener, charging brewers' yeast liquid in air-tight container and fermenting. The beverage can improve stomach and intestine functions.

Microminiature two-position three-way solenoid valve

The invention provides a microminiature two-position three-way solenoid valve which is used for controlling pilot of a high-flow hydraulic valve. In the solenoid valve, advanced magnetic circuits are designed, thus greatly reducing the volume weight of the valve and ensuring the consistence of sealing direction of the valve with the differential pressure direction, thereby improving the sealing reliability. The solenoid valve provided by the invention comprises a joint, an upper valve body, upper magnetic steel, an upper armature iron, a pressure-relieving coil, an upper valve seat, lower magnetic steel, two boosting coils, a lower armature iron, a lower valve seat, a lower valve body, a boosting joint and a shell. The solenoid valve provided by the invention is provided with three permanent magnetic circuits, so that the positions of the armature irons can be maintained; the solenoid valve provided by the invention is provided with two electromagnetic circuits, so that the positions of ...

Tobacco pollen medium as well as preparation method and application thereof

The invention discloses a tobacco pollen medium as well as a preparation method and application thereof. The preparation method of the tobacco pollen medium comprises the following steps of: picking flowers of a tobacco male parent from a bud containing period to an initial blooming period; removing anthers, placing on an indoor ventilating position, and cooling for 24 hours; collecting stigmas; drying under the condition of 30 DEG C; grinding, and then screening through a sieve of 60 meshes so as to obtain the tobacco pollen medium. The tobacco pollen medium and pure pollen are uniformly mixed according to the weight ratio of 1:2 and then used for the artificial pollination of tobaccos. The tobacco pollen medium can promote the germination of the pollen and the extension of pollen tubes,enhance the successful ratio of pollination, increase the output of tobacco seeds in unit area, reduce the usage amount of the pollen and effectively reduce the production cost of the tobacco seeds; and ...

Method and device for producing A356 aluminum alloy by belt casting

The invention discloses a method and a device for producing A356 aluminum alloy by belt casting. The prepared A356 aluminum alloy liquid is subjected to furnace refining and on-line degassing filtration, and then is continuously poured into a crystallizer of a casting machine; and the periphery of the crystallizer is continuously filled with cooling water for crystallization. A crystalline region is divided into five sections from the higher temperature to the lower temperature, and a cooling region is divided into twelve regions according to different flow rates of the cooling water distributed at the periphery of the crystallizer. The belt casting machine comprises a casting machine, a straightening machine, a blank guiding machine, a rolling code machine, a roller shearing machine, and the like, which are arranged in turn; and an approach bridge is arranged between the casting machine and the straightening machine. Compared with the prior art, the method and the device have the advantages ...

Magnetized space water and its prodn. tech

A process for producing magentized pure water features that superpure water is repeatedly cut by magnetic force line of strong magnetic field (more than 80000GS) to turn, extend or break off the hydrogen bond in water molecule, so obtaining the water with high energy, activity and dissolubility and containing a lot of OH radicals and oxygen. Said water has medical functions of removing deposited impurities from vascelum wall, activating cells and promoting metabolism.

Process for recycling and manufacturing copper granule from waste and old electric wire and cable

The invention discloses a technological method for producing copper rice grains by recovering waste wires and cables based on an improvement of the prior production mode that the waste wires and cables recover copper raw materials. The technological method has low cost, small energy consumption, less discharge and no waste pollution, meets the requirement of circular economy development, and can obtain a copper rice grain product the purity of which reaches 99.9 percent. The technological process comprises the steps of classification inspection, loading, primary crushing, secondary crushing, and vibration separation; the angle of a vibration sieve is adjusted according to the content of copper and the wire diameter, and the copper rice grains and plastic are subjected to optional separation through vibration sieving; a material from a mixed material port flows into an air suction pipe, and is sent for secondary crushing through a circulating air pipe; the air suction pipe above the vibration ...

Method for reducing germinating time of tobacco coating pilled seeds

The invention discloses a method for shortening the sprouting time of a tobacco pill seed and improving the cold resistance ability thereof. 50-100mg/L of gibberellin solution is used for the priming treatment for 24-36 hours on a tobacco seed which is sterilized and cleaned. After cleaning and drying, the seed is made into the tobacco pill seed according to a conventional process. The method has the advantages of simple operation and low cost. The activity and the seedling quality of the obtained pill seed are obviously improved. The sprouting is fast with unanimous shoot. Under the stress of low temperature, the tobacco pill seed still maintains higher sprouting trend, higher sprouting rate and higher sprouting index. With high activity, the pill seed is provided with obviously strengthened resistance to low temperature and has perfect market application prospect.

Tobacco male sterile line seed propagation method

The invention discloses a tobacco male sterile line seed propagation method, including paddy field piece selection, seedling raising, management of moisture in the soil, transplanting, fertilizer applying, stock tree selection, pollen collecting, pollination and seed harvest. The technology ensures the tobacco plant to be healthy and strong by appropriate retroposition of fertilizer, meets the requirement of post reproductive growth and improves seed quality and yield. Rouging is carried out in strict accordance with the biological characteristic of propagation breed, thus ensuring seed purity. Pollen collecting and pollination technologies are adopted, efficiency and quality are improved, and parents planting proportion is amplified. After applying the technology, the produced seed has high purity and excellent quality, the seed yield is improved to 11-13kg per mu from the original 5-6kg per mu, and significant breakthrough of tobacco male sterile line seed propagation technology is realized ...

Acid proof fast wiring clip for accumulator

The invention relates to the technical field of automotive parts, in particular to a storage battery acid-proof fast splicing fitting, aiming at resolving the problems of poor contact, non-safety, slow installation and short service life existing in the prior art. The technical scheme of the invention comprises that a storage battery fast-assembling safe acid-proof splicing fitting comprises a terminal box, a box cover, a top cover, an upper rubber tension sleeve, a lower rubber tension sleeve, a copper-hoop screw tap component, a connecting sleeve, a shrinkage sleeve and a locking wire sleeve, and is characterized in that the bottom portion of the terminal box is equipped with a hole, the lower rubber tension sleeve, the upper rubber tension sleeve and the top cover are arranged on stepsin the hole, the box cover is screwed with the terminal box, the copper-hoop screw tap component is arranged in the upper rubber tension sleeve, a tip end of the copper-hoop screw tap component penetrates ...

Medium pollen, preparation method and use thereof

The invention discloses a medium pollen, a preparation method and the application thereof. The preparation method is as follows: tobacco male parent anther is collected and aired to cause the anther to loose power, a 50 mesh sieve is used for sieving out pollen and pollen sac, the pollen sac is collected, dried at 40-50 DEG C for 20-24 hours, and ground into powder; the pollen sac powder and the pure tobacco pollen are mixed evenly according to 1:1-4 of volume ratio, and the required medium pollen is obtained. The medium pollen is dipped by a cotton swab or a brush pen and applied to the female parent tobacco flower column head for artificial pollination. The use of the medium pollen improves effective utilization ratio of the tobacco pollen, decreases application amount of the pure pollen, saves manpower and material resources for collecting pollen, decreases planting area of the tobacco male parents, and lowers production cost of seed production by hybridization. The popularization and ...

Method for automatically generating frequency library of shortwave frequency hopping

A method for automatically generating a short-wave frequency-hopping frequency database belongs to a method for generating a frequency database. The aim of the invention is to settle the problems of inferior real-time property and inferior stability and reliability of the frequency in the frequency database according to the prior art. The method comprises the following steps: on-time actuating scanning and detecting by two sides in the node pair according to the system clock; scanning and transmitting by A from a prescribed starting frequency to a prescribed pause frequency with a prescribed frequency interval, wherein each frequency stays for n seconds; scanning and receiving by B from a prescribed starting frequency to a prescribed pause frequency with a same frequency interval, wherein each frequency stays for n seconds, evaluating the channel quality and ranking thereby to obtain the position of the frequency-passable window from A to B; obtaining the position of the frequency-passable ...

Formulating method for Al-Cu alloy round aluminum rod

The invention relates to a preparation method for Al-Cu alloy round aluminum rod. The invention is characterized in that the method includes the following steps: (1) loading aluminum liquid with aluminum content of above 99.5%, controlling temperature thereof at 780-800 DEG C; (2) adding copper to control copper content between 0.35% and 0.8%, keeping the temperature at 780-800 DEG C for more than two hours, stirring at the same time; (3) adding silicon and iron into the aluminum liquid in the step (2), with silicon content controlled below 0.1% and iron content controlled below 0.4%, appropriately mixing after adding, and then melting, continuous casting and continuous rolling, thus Al-Cu alloy round aluminum rod is obtained. Compared with the ordinary pure round aluminum rod for electrical purpose, the maximum tensile strength of the inventive Al-Cu alloy round aluminum rod is improved by about 15% and the corresponding elongation is increased by over 30%, while the resistance rate is ...

Tobacco pollen medium as well as preparation method and application thereof

The invention discloses a tobacco pollen medium as well as a preparation method and application thereof. The preparation method of the tobacco pollen medium comprises the following steps of: picking flowers of a tobacco male parent from a bud containing period to an initial blooming period; removing anthers, placing on an indoor ventilating position, and cooling for 24 hours; collecting stigmas; drying under the condition of 30 DEG C; grinding, and then screening through a sieve of 60 meshes so as to obtain the tobacco pollen medium. The tobacco pollen medium and pure pollen are uniformly mixed according to the weight ratio of 1:2 and then used for the artificial pollination of tobaccos. The tobacco pollen medium can promote the germination of the pollen and the extension of pollen tubes, enhance the successful ratio of pollination, increase the output of tobacco seeds in unit area, reduce the usage amount of the pollen and effectively reduce the production cost of the tobacco seeds; and ...

Test card for testing wettability of spray liquor and preparation method thereof

The invention discloses a test card for testing wettability of spray liquor, and belongs to the field of pesticide spray. A substrate is made of fibers and is a paper sheet or a paper card drawn with concentric circles with different areas; coats comprise a water-sensitive material layer and a hydrophobic material layer from the bottom to the top in turn; the concentric circles with the differentareas are marked with spreading coefficient values in turn from the inside to the outside; and the spreading coefficient values are area ratios of the concentric circles to a central circle. The invention also discloses a preparation method for the test card. The test card of the invention has good repeatability; and compared with the conventional method for measuring or characterizing the wettability of the pesticide, the test card is convenient to use and carry, and testing can be performed indoors and outdoors and is finished without special equipment. The preparation method for the test card ...

Thermostatic hydroponic identification method for resistance of tobacco black shank at seedling stage

The invention relates to a thermostatic hydroponic identification method for the resistance of tobacco black shank at a seedling stage. The method comprises the following steps of: establishing a water-insulating circulating floating pool; transplanting tobacco seedlings; preparing inoculum; and inoculating, investigating and grading illness states and estimating resistance. The invention has theadvantages of rapid paroxysm, good and reliable result repetitiveness and no other disease interference, substitutes an identification result for a traditional land identification result at a seedling stage and can identify a great amount of materials in a small area for many times in a year, improve the result reliability, shorten the identification period and save the identification cost.

Tech. for mfg. agricultural chemicals with enhanced efficacy

The agricultural chemicals relate to the compounds comprised of abamectin emulsion, 5- 2-chloro-4(trifluoromethyl) phenoxy¨-2-nitrobenzamide, and (R)-2- 4-(5-trifluoromethyl-2-pyridoxy)phenoxy¨ butyl propionate respectively with synergist GAE, which chemical can reduce the dosage by 50% and the cost by 37-47%.

Frequency self-adaption method for shortwave frequency-hopping communication system

The invention discloses a frequency self-adaptive method used in a short-wave frequency hopping communication system, relating to a frequency selection method of hopping communication and aiming at solving the problem that the communication is affected owing to the working frequencies do not meet the communication quality requirement when the working frequencies meet bad frequency during channel variations. The method includes the following steps: setting a preset frequency hopping frequency database with N frequencies, numbering each frequency and selecting M better frequencies as the initial frequency hopping working frequency groups; during the communication process, both communication sides real-time monitor the communication quality of each working frequency, and store the working frequency into an abandoned frequency database when the working frequency does not meet the communication quality requirement and select a new frequency in the frequencies which are not used nor abandoned ...

Differential value feedback optimized diffraction optical element

The invention relates to a difference feedback optimized diffractive optical element, which solves the problem that the randomness of the application of SA optimization algorithm in beam shaping causes long search time, small increase amount of light spot uniformity and low cost performance. An optical substrate material of the invention is K9 glass or other optical glass, which has the refractive index between 1.5 and 1.85, the diameter between 300 and 350 mm and the thickness of 8 mm; the depth H of a subunit groove of an optical shaping groove is between 0.413 and 2.106 mu m, and the width W of the subunit groove is between 0.097 and 0.684 mm. The diffractive optical element has the advantages that: (1) in theoretical design, the design time of the element is shortened, and the uniformity index of output light spots is improved; (2) in processing and manufacture, a step type structure is suitable for the etching of ion beam mask nesting technology, and as the step type structure is uniform ...

Light hard alloy seal ring and producing method thereof

Atmosphere pressure sintered microporous carborundum graphite self-lubricating seal ring and method for manufacturing same

The invention provides a micropore siliconcarbide graphite self-lubricating seal ring which is sintered at normal pressure, comprising 90-96 weight% of siliconcarbide powder, 2-8 weight% of graphite powder, 2-5 weight% of polyvinyl alcohol. The preparation method thereof comprises: weighting the materials and uniformly mixing the siliconcarbide powder and graphite powder; adding polyviny alcohol into deionized water and heating to melt, then adding the uniform mixture powder into the water solution of polyvinyl alcohol and stirring into slurry, grinding at normal temperature; laying the slurry in a spry drying tower to granulate and in mould to perform pressure moulding; sintering the moulded products in vacuum high-temperature furnace; cooling to normal temperature. The siliconcarbide seal ring not only contains free graphite, but also contains crosslinking pore formed by bonding the siliconcarbide and polyvinyl alcohol to increase elasticity and improve the self-lubrication of siliconcarbide ...

Individual soldier water purifier applying composite nano water purifying material

The invention belongs to the water purifying field used for field fight foot soldiers, and relates to an individual soldier water purifier which applies composite nano water purifying material and can completely remove heavy metal, organic matters, bacteria and virus. The individual soldier water purifier consists of a bottle cap (201) provided with internal thread, a filter element (202) and a bottle body (203) having a bottle mouth (204). The shapes of the composite nano water purifying material include lamellar circular shape, curve tube shape and flakiness; according to the weight percentage, the composite nano water purifying material comprises the main components: 35-60% of oxidized-aluminium hydroxide, 15-35% of glass fiber and 15-25% of cellulose, wherein, the grain diameter of the oxidized-aluminium hydroxide is 20-60 nanometers, and the specific surface area is 360-800m<2>/g. The individual soldier water purifier has strong removing capability for non-purified water, and the advantages ...

Call processing system adapted for application server and its realizing method

This invention discloses a calling process system suitable for applied service including the following components: service agent used in receiving external call process operation to be packaged as information abject; dispatch queues used in storing all call queues; dispatch unit used in periodically scanning, dispatching queues and exacting the call queues; service logic for providing call process function; thread tank storing and maintaining a set of idle thread, service agent connects with the dispath queue and external soft exchange logic concurrently, the dispath with service logic and dispath queue, service logic with thread tank logic. This ivnention also discloses a call process method based on the above mentioned system.

High intensity and large length-diameter ratio ceramic spinneret and production method

The invention relates to a ceramic spinneret with high strength and large length-diameter ratio, and belongs to the textile field. The ceramic spinneret is characterized by being made from single-phase or complex phase ceramics with high strength such as Si3N4, Al2O3, Sialon and the like. Thickness of the spinneret is 3-4mm, the length-diameter ratio of a spinneret orifice thereof is more than 15, which causes the spinneret to be capable of bearing the working pressure above 30kg/cm<2>. The large length-diameter ratio can well help relieve brass bulking during spinneret jetting process, and is applicable to a dry-wet spinning process adopted in manufacturing high-strength PAN fiber, and the ceramic materials have the characteristics of good corrosion resistance, good high-temperature resistance and the like, and is suitable for being used and cleaned under a severe environment.

Tobacco pollen collecting method

The invention discloses a tobacco pollen collecting method. Flowers from flower bud period to initial blooming period are picked and peeled to collect anther. The collected anther is firstly dried in the shade and then is placed under the sun, so that the anther is completely cracked. Moisture content of pollen is determined after removing pollen sac and other impurities, pollen the moisture content of which is 6-9% is selected and placed into a brown glass bottle, the bottle is sealed and preserved at 3-5 DEG C for spare use. The invention changes the existing artificial pollination manner and can effectively overcome the problems of poor pollination effect, low seed yield and high seed production cost caused by unstable pollen quality and quantity when pollination between flowers. The tobacco pollen is scientifically and reasonably collected, treated and preserved, is applied to artificial supplementary pollination, improves pollination efficiency and pollination effect, amplifies parents ...

Liquid medium pollen, preparing method and application thereof

The invention discloses liquid medium pollen, a preparing method and applications thereof. The invention aims at improving the activity and the quality of pollen, reducing the use level of pure pollen and reducing the cost of seed production. Tobacco pure pollen and 0.2 to 0.5 mM polyamine solution are mixed, the mixture ratio of the pollen to the solution is 50 to 80 mg/ml, and the liquid medium pollen is obtained after uniform fixing. The polyamine solution is selected form one of putrescine, spermidine or spermine. Simultaneously the invention provides the application of the liquid medium pollen in tobacco artificial pollination.

the gene-carrying tobacco centered ntnip7 it 1 and its method and application cloning

gene transportador de arsênio do tabaco ntnip7-1 e seu método e aplicação de clonagem um gene transportador de arsênio do tabaco ntnip7-1 e um método de clonagem e aplicação do mesmo são revelados. uma sequência nucleotídica do gene transportador de arsênio do tabaco ntnip7-1 é mostrada como seq id: no. 1, e a sequência de aminoácidos codificada do mesmo é mostrada como seq id: no 2. o método de clonagem do gene transportador de arsênio do tabaco ntnip7-1 inclui (s1) extração de rna do tabaco, realizar transcrição reversa e obter um cdna de primeira fita; e (s2), tomando como modelo o cdna da primeira fita obtido pela transcrição reversa, sintetizando um iniciador específico de acordo com as sequências do gene ntnip7-1, realizando a amplificação por pcr, recuperação e purificação de produtos de amplificação por pcr e sequência. na presente invenção, a inibição da expressão do gene endógeno do tabaco ntnip7-1 em plantas de tabaco é capaz de reduzir significativamente o conteúdo de arsênio das folhas de tabaco e tem amplas perspectivas de aplicação no campo de cultivo de sementes com baixo teor de arsênio e com grande potencial econômico.

Method for producing active copper granules

The invention discloses a method for producing active copper granules, which comprises the following steps of: (1) thermal treatment: conveying copper granules to an annealing furnace pot, and performing heating treatment for 45 to 60 minutes at the temperature of between 430 and 580 DEG C to obtain copper oxide granules, wherein the revolution speed of the annealing furnace pot is 0.4 to 0.6 revolution per minute; and (2) cooling: cooling the copper oxide granules obtained in the step (1) naturally through a mechanical transmission device or by air through a blower device, and obtaining the active copper granules by collecting. By the method, organic impurities on the surfaces of the copper granules can be effectively removed; moreover, a certain amount of oxide layers are formed on the surface of the treated product, the dissolution speed of the copper granules is improved, energy can be effectively saved, and the production cost is reduced.

Redundant bit-less digit correction method in high-speed A/D converter

The invented method includes following steps. (1) The electrical level to be judged is moved half place value. (2). The digital output code of this stage is output after sub-A/D conversion. (3). The two adjacent D/A electrical levels are selected from the digital output codes so as to generate the two increment signals. (4) Which one of the two increment signals is decided to output by the judging whether the increment signal is outrange or not. In the step (1), the half place value means 1/2 LSBi (Least Significant Bit). The 1 LSBi is the quantization level of this stage and is not the quantization level of the entire converter. The result of the step (4) is used to decide whether the digital output code should be increased by 1 or decreased by 1.

String-type wind wheels and magnetic levitation string-type windmill

The invention relates to a method for constructing a string-type wind wheels and a corresponding magnetic levitation string-type windmill. Two or more Darrieus-type wind wheels with two to three blades respectively are connected in series and mounted in the vertical direction to form a new wind wheel which has the characteristics and the key points for generating the self-starting capability: (1) an included angle theta of the connecting lines between the geometric center points of the cross sections of any two adjacent blades and the rotating center of the wind wheels in the whole projection of the wind wheels in the vertical direction meets the following conditions that: the sum of all acute angles theta is larger than 120 degrees, and preferably, theta=360/sigma y, wherein y is the blade number of wind wheels; (2) the axial crossed part of the blades of the upper layer and the lower layer is not larger than 25 percent of the height sum of the wind wheels of the upper layer and the lower ...

Method for detecting N gene-controlled tobacco TMV resistance by molecular markers

The invention relates to a molecular marking method for detecting a tobacco mosaic resistance gene (N gene), which comprises primer design, genome DNA extracting, PCR amplification and electrophoresis detection, and comprises the following specific steps: designing a specific primer according to the nucleotide sequence of the tobacco TMV resistance gene (N gene), amplifying a tobacco variety (strain) containing the TMV resistance gene (N gene)by a PCR reaction to obtain a feature band of 1200bp or so, and thus achieving the purpose of detecting whether the tobacco variety (strain) has TMV resistance. 84 cured tobacco materials are detected by the molecular markers of the invention, and the results are in accordance with the TMV resistance of the variety (strain). The method has the advantages of convenient operation, reliable result and high detection speed, and is not influenced by growth and development periods of plants. When the method is used for the seed selection of cured tobacco ...

Cabinet

The invention relates to a cabinet, comprising a box and a side plate. Both sides of a door are connected with the two sides of the box through detachable hinge devices, so that when it is necessary to open the cabinet, according to the actual situation of the operation space, the rotation direction of the door or the box is selected; the relative rotation between the door and the box can be realized dependent on the detachable hinge device on the other side and through the detachable hinge device to remove the connection relation between the door and the box, thus the cabinet is opened. Then the cabinet is closed through the detachable hinge device to re-connect the door and the box. Therefore, the bidirectional opening and closing of the cabinet can be realized according to the actual situation, and the cabinet has a wider application range.

SELF-TRANSPARENT PLATE TYPE DISPLAY SYSTEM

Heat treatment method for use in processing technology for production of 5XXX series aluminium plate by using cast-rolling stock

High strength alloy round aluminium rod and production method thereof

The invention provides a high strength alloy round aluminium rod and a production method thereof. Liquid aluminium with the content of more than 99.5% is added into a smelting furnace, the temperature is controlled to be 760-800 DEG C; silicon and magnesium and iron chelating agent are added, wherein the content of Si is controlled to be less than or equal to 0.6%, the content of Mg is controlled to be 0.3-0.9%, and the content of Fe is controlled to be less than or equal to 0.3%; aluminium melt is prepared, nitrogen is utilized to blow powder refining agent into the solution for refining, the usage amount of refining agent is 1.2kg/ton, and the pressure of nitrogen which is led in is 0.05-0.4MPa, thus obtaining aluminium melt with higher purity; and continuous casting and tandem rolling are carried out on aluminium melt subject to standing, before casting, Al-Ti-B rod is added in a chute at the speed of 150mm/min, so as to carry out online grain refinement treatment on the aluminium melt ...

Estimating method of genetic similarity index of codominance molecular marker based on relative correlation coefficient

The invention discloses a calculation method of genetic similarity index of codominance molecular marker based on relative correlation coefficient. The technical scheme is as follows: obtaining an electrophoresis pattern of each variety or kind of plant by adopting the current codominance molecular marker method; comparing in pairs according to the amplification strip information of the variety or kind of the plant; respectively calculating a genetic similarity index between each two plant varieties and kinds according to a calculation formula of the genetic similarity index; and taking the genetic similarity index as the estimation of the corresponding relative extent of the individuals. The calculation method of genetic similarity index is applied to the codominance molecular marker. The calculation method of the obtained genetic similarity index can effectively respond the relative relationship extent among the colonies based on the relative correlation coefficient.

Automatic seed soaking pregermination device

The invention discloses an automatic seed soaking pregermination device which comprises a seed soaking pregermination tank (1) and a control device (2); wherein, the bottom of the seed soaking pregermination tank (1) is provided with a water drain valve, and the seed soaking pregermination tank (1) respectively controls an oxygenation device, a heating device and a cooling device by the control device (2); the oxygenation device is communicated with an oxygenation pipeline arranged at the bottom of the seed soaking pregermination tank (1) through a gas pipeline (9); the heating device includes a sterilizing heating device and a heat insulating heating device, and the sterilizing heating device is communicated with the heat insulating heating device through a steam conduit and then communicated with the seed soaking pregermination tank (1); the cooling device is communicated with the upper part and the lower part of the seed soaking pregermination tank (1) through a low temperature water ...

Improved mechanical seal

The invention discloses an improved mechanical seal, a movable ring component of the improved mechanical seal comprises a movable ring (13), a fastening ring (9) which is in interference fit with a shaft (10), a rigid transmission sleeve (11) of which a tail inner hole is interference fit with the fastening ring (9), an elastic support (7) which is equipped with two ring-shaped boss (18) at left and right ends, and a spring (12) which is abutted between a movable ring seat (5) and a spring seat (8);an axial groove (4) matched with a lug (6) on external circumference surface of a head of the rigid transmission sleeve (11) is arranged on an internal circumference surface of the movable ring (13); the movable ring seat (5) and the spring seat (8) are respectively hung to the ring-shaped boss (18) at the left and right ends of the elastic support (7); step end surface of the movable ring (13) is hung to the ring-shaped boss (18) at the left end of the elastic support (7); and the tail step ...

Multiplex synchronous flat wheel analog signal source system based on virtual instrument

The invention provides a multiplexing synchronous horizontal wheel simulated signal source system based on a virtual instrument. The simulated signal source system includes a virtual panel module based on Labwindows/CVI, a signal switchover module based on ARM as a control chip and a plug-and-play signal generating module based on CPLD as the control chip. The signal switchover module based on the ARM as the control chip adopts the ARM composed of a power supply, a crystal oscillator, a reset circuit, a JTAG port and a serial port as the control chip and further comprises a USB switching circuit, liquid crystal, a press key, a drive circuit and a plug and play interface functional circuit connected to the signal switchover module at the periphery thereof. The virtual panel based on the Labwindows/CVI is connected with the USB switching circuit of the signal switchover module based on the ARM as the control chip via USB wires. The plug-and-play signal generating module is connected to the ...

Method for processing spinning hole by using excimer-laser drilling technology

The invention relates to a method for processing a spinning hole by using an excimer-laser drilling technology, wherein the spinning hole comprises a guide hole and a straight hole. The method is characterized in that the wavelength of an excimer laser used for straight-hole processing is 150-400nm, the selective pulse is 80-120 per second, the energy of a single pulse is 300-400mJ, the used working gas comprises Kr, Ne, He or Ar inert auxiliary gases and halogen, and the material of the spinning hole is ceramics, metal or glass. Compared with a traditional laser, the excimer laser has the outstanding characteristic of particularly large line-pulse energy, the energy of a single photon can reach 3.5-7.8ev, and when the photon with high energy is irradiated onto the material, the molecular bond of the material is directly destroyed to obtain a set processing shape. Because the drilling processing of other lasers is carried out by means of the thermal effect of light beam focusing, the excimer ...

Method for identifying resistance to tobacco bacterial wilt during seedling stage

The invention relates to a seedling stage identification method for the resistance of tobacco to the bacterial wilt. The seedling stage identification method comprises the steps of heat preservation pool construction, pool water heating and circulation, wilt bacterium inoculation, tobacco seedling, disease state investigation and grading. The method replaces a conventional field identification result with a seedling stage identification result, identifies a great amount of material in a smaller area, carries out the identification a plurality of times annually, improves the reliability of theresult, shortens the identification cycle, saves the site and test cost, and covers little floor space. The seedling stage identification method for the resistance of tobacco to the bacterial wilt ischaracterized by rapid disease development, good result repeatability, and the like. The seedling stage identification method for the resistance of tobacco to the bacterial wilt can effectively remove the ...

Molding sintering graphite sealed ring and manufacturing method thereof

The invention discloses a mould-pressing sintered graphite sealing ring and a manufacturing method thereof. The sealing ring comprises the following components by weight percentage: 80 to 92 percent of coal pitch, 3 to 15 percent of amorphous graphite, and 1 to 7 percent of abrasion-resistant carbon ink. The manufacturing method comprises the following steps: weighing each component according to the weight percentage, evenly stirring the components, adding the components and anhydrous ethyl alcohol into a kneader according to a volume ratio of 1 to 0.1, heating the mixture and kneading the mixture into granular lump materials, wherein the kneading time is 2 to 5 hours, and the kneading temperature is 165 to 220 DEG C; cooling and crushing the kneaded lump materials, sieving the crushed lump materials by a sieve of 60 to 120 meshes, then putting the sieved lump materials into a mould, and applying pressure of 100 to 200Mpa/ to shape, wherein the temperature of a hydraulic press is 165 to ...

Method for improving cold resistance of pelleted seed of tobacco

The invention discloses a method for improving the cold resistance of pelleted seed of tobacco, which comprises the steps of: soaking and sterlizing tobacco seeds with 1.0 percent of copper sulfate for 15min, washing with clear water, initiating in 0.01 to 0.1mmol/L of polyamine solution under the dark condition at 20 to 25 DEG C for 24 to 48h, and adopting a conventional pelleting process to prepare the pelleted seed of tobacco. The invention has simple operation and low cost. After the tobacco seed is initiated by the polyamine solution, under the low temperature, the vitality of the pelleted seed and the quality of the seedling are high, the seedlings germinate fast and come out evenly, and growth potential is strong; and the protective enzymatic activity in the tobacco seedling is high, the malonaldehyde(MDA) content is low, and the low temperature resistance is obviously improved. The invention has better application prospect.

Method for finely selecting tobacco seeds

The invention discloses a method for finely selecting tobacco seeds, which comprises the following steps: putting the tobacco seeds in a container filled with clear water, soaking the seeds for 4-5h, removing the seeds floating on water surface, adding NaCl to the container to prepare the NaCl solution with the concentration of 2.0-10.0%, adequately stirring, putting aside for 5min, removing the seeds floating on the surface of the solution, filtering out residual seeds, cleaning clearly, putting in an oven, and drying at a constant temperature of 40 DEG C until the original water content of the seeds. The invention can effectively eliminate the seeds with moth damage, mildew, deterioration, relatively poor plumpness and relatively low vitality, and impurities so as to greatly improve batch quality of the tobacco seeds. The invention has simple and convenient operation and low cost, can provide high-quality tobacco net seeds for the production of tobacco coated seeds, and has wide popularization ...

Cabinet

The invention relates to a cabinet, comprising a box and a side plate. Both sides of a door are connected with the two sides of the box through detachable hinge devices, so that when it is necessary to open the cabinet, according to the actual situation of the operation space, the rotation direction of the door or the box is selected; the relative rotation between the door and the box can be realized dependent on the detachable hinge device on the other side and through the detachable hinge device to remove the connection relation between the door and the box, thus the cabinet is opened. Thenthe cabinet is closed through the detachable hinge device to re-connect the door and the box. Therefore, the bidirectional opening and closing of the cabinet can be realized according to the actual situation, and the cabinet has a wider application range.

Space water closet

The invention relates to the technical field of water closets, in particular to a space water closet. The space water closet of the invention overcomes the problems of the prior art such as high cost and large weight. The technical solution of the invention is as follows: the space water closet comprises a conical extension bush (7), a conical screw rod (1), a stirring handle (6), a right-angle feces delivery pipe (9) and a balloon feces bag (10). The space water closet is characterized in that one end of the space water closet which is externally provided with the conical extension bush (7) is matched with a bending head (8), the other end of the bending head (8) is tightly matched with the right-angle feces delivery pipe (9), and the other end thereof is sheathed with the balloon feces bag (10); the shaft head of the conical screw rod (1) is tightly matched with one head of an elastic universal joint (2), and the other head thereof is tightly matched with the short shaft head of a screw ...

Tobacco compound pollen medium, preparation method and applications thereof

The invention discloses a tobacco compound pollen medium and a preparation method thereof. The tobacco compound pollen medium is prepared by respectively smashing and evenly mixing the following components in parts by weight: 25-30 parts of glucose, 25-30 parts of cane sugar, 40-49 parts of soluble starch, 0.5 part of sodium borate and 0.5 part of light calcium carbonate. The tobacco compound pollen medium can promote the germination of the pollen and the elongation of pollen tubes, improves the fertilization success rate, improves the tobacco seed yield at per unit, and lowers the seed production cost of the tobacco seeds. The method of the invention has simple operation, low cost, popularization and application values and good economic and social benefits.

Abutting and shrinking bolt for rapidly building tube walls

The invention relates to an abutting and shrinking bolt for rapidly building tube walls, which belongs to the field of building implements, comprises a guide screw (1), a hose (2), a soft sleeve (3) and a screw cap (4) and is characterized in that the hose (2), the soft sleeve (3) and the screw cap (4) are sleeved on the guide screw (1); the screw cap (4) is inlaid in the middle at one end of thesoft sleeve (3), the hose (2) and the soft sleeve (3) are shrunk at the time, and the outside diameters of the hose (2) and the soft sleeve (3) are enlarged (thickened) while shrinking, so that the hose (2) and the soft sleeve (3) can not be pulled out with force at the time; the tighter a rack tube (5) is rotated, the better a wall and the rack tube are connected, thereby performing a building purpose; when a tube wall abutting joint is rotated towards a reverse direction, the hose (2) and the soft sleeve (3) are extended in length and decreased in outside diameters, so that the abutting joint ...

Automatic raising and fast repositioning control device and method for hydraulic jacking mechanism

The hydraulic lifting machine with automatic lifting and quick reset device comprises an oil cylinder whose interior is equipped with a spring, its top seat and bottom seat are communicated by means of oil circuit, said oil cylinder has bar cavity, bar-free cavity, oil tank and oil pump which are controlled by means of two-position for-way valve formed by cut-off valve and throttle valve. It alsocomprises non-return valve, overflow valve and the oil circu9it of supplementing oil, sucking oil and overload protection, etc. Said invention also provides its operation method.

Preparation method of alternaria alternate spore inoculum

The invention discloses a preparation method of alternaria alternate spore inoculum, which comprises the following steps: (1) obtaining strong pathogenicity strains; (2) culturing the strains in dark; (3) inducing the strains in a refrigerator in dark; and (4) obtaining the alternaria alternate spore inoculum, wherein point inoculum of alternaria alternate is a culture already producing a large amount of spores and each point gives priority to the spore inoculum in inoculation; an inducing sporulation method of the alternaria alternate has high humidity and low temperature induction, and hyphae of zymad fully grows before the induction. In the alternaria alternate spore inoculum, 20-25ml of spore suspension with the spore content of 10-100 millions/ml can be obtained in a flat with the diameter of 9 cm in each utensil, and the spore germination reaches over 90 percent. The amount of the spore prepared by the method is 50-100 times of that of the spore prepared by the common method, and ...

Sprout period authenticating method for tobacco mosaic resistantance

Frequency self-adaption method for shortwave frequency-hopping communication system

The invention discloses a frequency self-adaptive method used in a short-wave frequency hopping communication system, relating to a frequency selection method of hopping communication and aiming at solving the problem that the communication is affected owing to the working frequencies do not meet the communication quality requirement when the working frequencies meet bad frequency during channel variations. The method includes the following steps: setting a preset frequency hopping frequency database with N frequencies, numbering each frequency and selecting M better frequencies as the initial frequency hopping working frequency groups; during the communication process, both communication sides real-time monitor the communication quality of each working frequency, and store the working frequency into an abandoned frequency database when the working frequency does not meet the communication quality requirement and select a new frequency in the frequencies which are not used nor abandoned ...

Solid medium pollen and preparation method and use thereof

The present invention discloses a solid media pollen, a preparation method and the application thereof. Tobacco pollen parent anther is collected and aired to loose pollen; the pollen is sieved by a 50-mesh sieve; starch or flour is mixed with the collected pure tobacco pollen evenly according to the volume ratio of 1:2-4; and the required solid media pollen is obtained. The solid media pollen isdipped by a cotton swab or a brush pen and is smeared on a female parent tobacco flower stigma for artificial pollination. The use of the solid media pollen improves the effective utilization rate ofthe tobacco pollen, reduces the usage amount of the pure pollen, saves the manpower and material resources used for collecting the pollen and reduces the planting area of tobacco pollen parent and the hybrid seed production cost. The popularization and the application of the technology have good economic benefit and social benefit.

Production method capable of improving grain size of AlSi7Mg

The invention relates to a production method capable of improving the grain size of an AlSi7Mg aluminum alloy. The production method comprises the following steps of: melting to obtain AlSi7Mg melts; casting at the temperature of between 635 and 650 DEG C and the speed of between 5 and 8 tons/hour by a pulley type casting process; and dividing a crystallizing wheel into three inner cooling areas, three outer cooling areas, three inside cooling areas and three outside cooling areas, wherein the water flow of an inner cooling area 1 is between 3.5 and 6m<3>/h, the water flow of an inner cooling area 2 is between 19 and 23m<3>/h, and the water flow of an inner cooling area 3 is between 3.5 and 6m<3>/h; the water flow of an outer cooling area 1 is between 2 and 4m<3>/h, the water flow of an outer cooling area 2 is between 19 and 29m<3>/h, and the water flow of an outer cooling area 3 is between 19 and 23m<3>/h; the water flow of an inside cooling area 1 is between 2 and 4m<3>/h, the water flow ...

Formulating method for Al-Cu alloy round aluminum rod

The invention relates to a preparation method for Al-Cu alloy round aluminum rod. The invention is characterized in that the method includes the following steps: (1) loading aluminum liquid with aluminum content of above 99.5%, controlling temperature thereof at 780-800 DEG C; (2) adding copper to control copper content between 0.35% and 0.8%, keeping the temperature at 780-800 DEG C for more than two hours, stirring at the same time; (3) adding silicon and iron into the aluminum liquid in the step (2), with silicon content controlled below 0.1% and iron content controlled below 0.4%, appropriately mixing after adding, and then melting, continuous casting and continuous rolling, thus Al-Cu alloy round aluminum rod is obtained. Compared with the ordinary pure round aluminum rod for electrical purpose, the maximum tensile strength of the inventive Al-Cu alloy round aluminum rod is improved by about 15% and the corresponding elongation is increased by over 30%, while the resistance rate is ...

Acid proof fast wiring clip for accumulator

The invention relates to the technical field of automotive parts, in particular to a storage battery acid-proof fast splicing fitting, aiming at resolving the problems of poor contact, non-safety, slow installation and short service life existing in the prior art. The technical scheme of the invention comprises that a storage battery fast-assembling safe acid-proof splicing fitting comprises a terminal box, a box cover, a top cover, an upper rubber tension sleeve, a lower rubber tension sleeve, a copper-hoop screw tap component, a connecting sleeve, a shrinkage sleeve and a locking wire sleeve, and is characterized in that the bottom portion of the terminal box is equipped with a hole, the lower rubber tension sleeve, the upper rubber tension sleeve and the top cover are arranged on steps in the hole, the box cover is screwed with the terminal box, the copper-hoop screw tap component is arranged in the upper rubber tension sleeve, a tip end of the copper-hoop screw tap component penetrates ...

Aeration treating method of tobacco floating seedling

The invention discloses an aeration treating method of tobacco floating seedling. The aeration treating method comprises the following steps of: before seeding and panning, mixing calcium peroxide with matrix according to the using amount of 150.0 to 450.0g/m<3> evenly, adding the calcium peroxide with the concentration of 0.09 to 0.27g/L into pond culture solution when the second true leaf and the sixth true leaf respectively grow out of the tobacco seedling, and other operations are respectively conventional technique. The aeration treating method can solve the hypoxic stress of floating seedling to tobacco seedling, improve the environment for the sprouting of tobacco seeds and growing of the root system of the tobacco seedling, improve the uniformity of seedling emergence, strengthen the activity of the root system of the tobacco seedling, enhance the growth of the tobacco seedling, improve the quality of the tobacco seedling, and is beneficial to culturing disease-free strong tobacco ...

Vertical axis windmill with arc-shaped blade

The invention relates to an arc-shaped blade and a vertical axis windmill consisting of the same. The blade is arc-shaped or ring-shaped; the cross section of the blade is fish-shaped, has a cavity structure and is positioned on one edge of the protrusion side of an arc; part of the rear edge of the cross section is cut; a cut is positioned behind the position having the maximum thickness of the blade; and the length of a cut part accounts for 45 to 70 percent based on chord length. A plurality of arc-shaped blades or ring-shaped blades with the cuts are radially and uniformly distributed on the circumference of a hub to form a wind wheel; an included angle of 0 to 10 degrees is formed between a chord line of the blade and a tangent line of the circumference of the hub; the blades can be mounted in a single-layer or multi-layer mode; and the formed wind wheel can be pulled up and suspended under the action of magnetic pull so as to form a magnetically suspended vertical axis windmill, and ...

Oil smoke purifier using ceramic tubes as carriers

The invention belongs to the field of oil smoke purifying technology for catering trade, in particular to an oil smoke purifier using ceramic tubes as carriers, which is suitable for updraft smoke exhThe invention belongs to the field of oil smoke purifying technology for catering trade, in particular to an oil smoke purifier using ceramic tubes as carriers, which is suitable for updraft smoke exha metallic ring. The chemical catalytic method is adopted by the oil smoke purifier to convert oil smoke gas into water vapor and carbon dioxide gas to achieve the function of treating both the incih a metallic ring. The chemical catalytic method is adopted by the oil smoke purifier to convert oil smoke gas into water vapor and carbon dioxide gas to achieve the function of treating both the incidental and fundamental aspects. Thus, the oil smoke purifier has better environmental protection effect.dental and fundamental aspects. Thus, the oil smoke purifier has better environmental protection effect.austers ...

Tobacco black shank resistance disease nursery identification method

The invention relates to a method for identifying tobacco black shank resistance in disease nursery. A continuous cropping tobacco field in a historical high occurrence area of the tobacco black shank disease is selected as a disease nursery; plants are inducted to develop the disease through the improvement of the field humidity, so that the complex operation of strain separated storage and culture is reduced; the strain is sourced from the field; the quantity and variety of the microspecies for inoculation are theoretically unlimited; and the method has better diversity and representativeness, and the inoculation conditions are under the control of nature, so the identification results reflect the local practical situation of the day more correctly. A one-off uprooting investigation method after the collection of the flue-cured tobacco is adopted so as to greatly reduce the workload, save the cost and bring about a correct and reliable result. The method is characterized by low cost and ...

Cold-humid adversity resisting tobacco coated seed and preparation method thereof

The invention discloses a cold-humid adversity resisting tobacco coated seed and a preparation method thereof. Before being subjected to coating and pelleting, the tobacco seed is initiated by using mixed solution consisting of 5 to 10g/L urea hydrogen peroxide and 50 to 100mg/L gibberellin; and when coating and pelleting is performed, 10.0 to 20.0 percent calcium peroxide is added into a seed coating agent. The cold-humid adversity resisting tobacco coated seed prepared by the invention has the advantages of high seed activity, short sprouting time, high rate of emergence in the fame, uniform emergence of seedlings, high resistance to low temperature stress and hyproxia stress, and the like, and has excellent application prospect in the tobacco production.

Seed soaking processing method for simultaneously improving cold and drought resistance of tobacco seed

The invention discloses seed soaking liquid and a seed soaking method for simultaneously improving the cold and drought resistance of a tobacco seed. The used seed soaking liquid is a 5-10mg/L calcium chloride solution; the seed soaking condition comprises dark seed soaking at 20-30 DEG C for 12-24 hours; after the seed soaking is finished, the seed is rapidly washed with distilled water; and after the surface water is completely sucked, the seed is placed at 25-30 DEGC for dying to the original water content. Before the seed is soaked, the seed is disinfected with a 0.5-2 percent sodium hypochlorite solution for 10-20 minutes; then the seed is rapidly washed with the distilled water; and after the surface water is completely sucked, the seed is arranged at 25-30 DEG C for drying to the original water content. The seed soaking chemical used by the invention has low price, the seed soaking method is simple and easy, and the invention provides ideal seed soaking liquid and a seed soaking ...

Multiplex synchronous flat wheel analog signal source system based on virtual instrument

The invention provides a multiplexing synchronous horizontal wheel simulated signal source system based on a virtual instrument. The simulated signal source system includes a virtual panel module based on Labwindows/CVI, a signal switchover module based on ARM as a control chip and a plug-and-play signal generating module based on CPLD as the control chip. The signal switchover module based on the ARM as the control chip adopts the ARM composed of a power supply, a crystal oscillator, a reset circuit, a JTAG port and a serial port as the control chip and further comprises a USB switching circuit, liquid crystal, a press key, a drive circuit and a plug and play interface functional circuit connected to the signal switchover module at the periphery thereof. The virtual panel based on the Labwindows/CVI is connected with the USB switching circuit of the signal switchover module based on the ARM as the control chip via USB wires. The plug-and-play signal generating module is connected to the ...

High-efficiency automatic wire connecting double-side socket

The invention relates to the technical field of household appliance equipment, in particular to a safe automatic wire connecting double-side socket. In order to overcome the defects of difficult wire connection, no safety, high cost and poor contact, the safe automatic wire connecting double-side socket comprises power copper plates, cams, switch shifting forks, a gum cover and a lock ring. The double-side socket is characterized in that one side of each of three copper plates is respectively provided with a cam, while the other side is provided with a cam for a switch; two holes of the switch cam are matched with switch shifting forks; axial holes of three wire connecting cams are diagonally provided with a return spring hole; and a small ring tows the return spring hole to make the cams deflected and pressed against the copper plates. One end of the gum cover is jointed with a silk bushing at the wire connecting part, while the other end is provided with the lock ring which is screwed ...

Method for detecting N gene-controlled tobacco TMV resistance by molecular markers

The invention relates to a molecular marking method for detecting a tobacco mosaic resistance gene (N gene), which comprises primer design, genome DNA extracting, PCR amplification and electrophoresis detection, and comprises the following specific steps: designing a specific primer according to the nucleotide sequence of the tobacco TMV resistance gene (N gene), amplifying a tobacco variety (strain) containing the TMV resistance gene (N gene)by a PCR reaction to obtain a feature band of 1200bp or so, and thus achieving the purpose of detecting whether the tobacco variety (strain) has TMV resistance. 84 cured tobacco materials are detected by the molecular markers of the invention, and the results are in accordance with the TMV resistance of the variety (strain). The method has the advantages of convenient operation, reliable result and high detection speed, and is not influenced by growth and development periods of plants. When the method is used for the seed selection of cured tobacco ...

System for inquiring mineral authorization

Tobacco compound pollen medium, preparation method and applications thereof

The invention discloses a tobacco compound pollen medium and a preparation method thereof. The tobacco compound pollen medium is prepared by respectively smashing and evenly mixing the following components in parts by weight: 25-30 parts of glucose, 25-30 parts of cane sugar, 40-49 parts of soluble starch, 0.5 part of sodium borate and 0.5 part of light calcium carbonate. The tobacco compound pollen medium can promote the germination of the pollen and the elongation of pollen tubes, improves the fertilization success rate, improves the tobacco seed yield at per unit, and lowers the seed production cost of the tobacco seeds. The method of the invention has simple operation, low cost, popularization and application values and good economic and social benefits.

Self-balanced mechanical seal

The invention discloses a self-balanced mechanical seal, wherein a moving ring component comprises a sealing ring (13), a spring (7), a transmission seat (9) connected with a shaft (10) and a moving ring (5); a spring groove (8) is arranged on the transmission seat (9); two ends of the spring (7) respectively abut between a spring pad (6) and the spring groove (8); three planes I (15) are uniformly distributed on circumference external surface of the moving ring (5); three convex edges (9.1) are uniformly distributed on a left end of the transmission seat (9); inner side of the convex edges (9.1) is a plane II (19) matched with the planes I (15); an arc-shaped groove (17) is arranged on the plane II (19); a straight line loss edge (18) is arranged on outer circumference of the spring seat (6); a step bore is arranged at a right end of the moving ring (5); and a moving sealing ring (13) is arranged in the step bore in an interference fit manner. The invention has long service life, stable ...

Double-channel transmitting-receiving method for shortwave synchronous frequency-hopping communication

A double channel transmitting/receiving method which is used for the short-wave synchronization frequency hopping communication belongs to the technical field of short-wave communication and relates to a method for transmitting and receiving a short-wave synchronization frequency hopping communication. The purpose of the invention is to settle the problem that a timing system with an extraordinary high precision is required in the existing short-wave synchronization frequency hopping communication. The transmitting side adopts a single transmitter. The receiving side adopts a double receiver comprising a first receiver and a second receiver. The first receiver works in the odd time slot for transmitting the frequency-hopping time slot sequence. The second receiver works in the even time slot for transmitting the frequency-hopping time slot sequence. The working time of each receiver in a frequency is two times of the transmitting time of the transmitter. The method according to the invention ...

Face recognition system and face recognition method based on intelligent card

The invention discloses a face recognition method based on an intelligent card, which comprises the following steps: acquiring and transmitting face data; judging the quality of the face data; adjusting the brightness for the face data with qualified quality; extracting face features, and transmitting the face features to the intelligent card by an encrypted way; and comparing the face images, and determining whether the identification passes or not. The invention also discloses a face recognition system which comprises a face detection module, a data safety communication module, a face imagequality judging module, a face image brightness adjusting module, a face feature extracting module and a face verification module. By adopting the system and the method of the invention, the defect of the reduction of the recognition effect caused by attitude deviation is eliminated, and the recognition rate is greatly improved. In addition, in the process of comparing the face images, the writing speed ...

Quick cutting edge sharpening machine and method

A fast sharpener for cutting tool is composed of one or several pairs of abrasing heads and/or scraping cutters with holes, locating posts matched with the said holes, regulating knob, and regulatingnut coupled with the regulating knob via regulating screw arbor. Turning the said knob can regulating the included angle between the said abrasing heads and/or scraping cutters. Its advantages are simple structure and only pull operation.

Aeration treating method of tobacco floating seedling

The invention discloses an aeration treating method of tobacco floating seedling. The aeration treating method comprises the following steps of: before seeding and panning, mixing calcium peroxide with matrix according to the using amount of 150.0 to 450.0g/m<3> evenly, adding the calcium peroxide with the concentration of 0.09 to 0.27g/L into pond culture solution when the second true leaf and the sixth true leaf respectively grow out of the tobacco seedling, and other operations are respectively conventional technique. The aeration treating method can solve the hypoxic stress of floating seedling to tobacco seedling, improve the environment for the sprouting of tobacco seeds and growing of the root system of the tobacco seedling, improve the uniformity of seedling emergence, strengthen the activity of the root system of the tobacco seedling, enhance the growth of the tobacco seedling, improve the quality of the tobacco seedling, and is beneficial to culturing disease-free strong tobacco ...

Sprout period authenticating method for tobacco black shank fastness

Bionic cultivation method of gentiana straminea maxim

The invention relates to a cultivation method of plateau plants, in particular to a bionic cultivation method of gentiana straminea maxim. The method comprises the following steps of: (1) selecting a gentiana straminea maxim planting base; (2) selecting land and treating soil; (3) preparing seeds; (4) planting; (5) building a meshy fence around the planting base when planting the gentiana straminea maxim in pastoral regions at a higher altitude; suppressing weeds as well as preventing and controlling rodents; and overwintering; and (6), harvesting and primarily processing medicinal herbs. Compared with the traditional gentiana planting method, the bionic cultivation method of the gentiana straminea maxim has the advantages that: 1. the incidence rate of annual weeds in the soil with the depth of less than 10cm can be reduced without ploughing (non-tillage) and stirring the soil when planting, thereby saving the cost; 2. the weeding control is carried out before planting by utilizing biopesticide ...

Microminiature two-position three-way solenoid valve

The invention provides a microminiature two-position three-way solenoid valve which is used for controlling pilot of a high-flow hydraulic valve. In the solenoid valve, advanced magnetic circuits are designed, thus greatly reducing the volume weight of the valve and ensuring the consistence of sealing direction of the valve with the differential pressure direction, thereby improving the sealing reliability. The solenoid valve provided by the invention comprises a joint, an upper valve body, upper magnetic steel, an upper armature iron, a pressure-relieving coil, an upper valve seat, lower magnetic steel, two boosting coils, a lower armature iron, a lower valve seat, a lower valve body, a boosting joint and a shell. The solenoid valve provided by the invention is provided with three permanent magnetic circuits, so that the positions of the armature irons can be maintained; the solenoid valve provided by the invention is provided with two electromagnetic circuits, so that the positions of ...

Face recognition system and face recognition method based on intelligent card

The invention discloses a face recognition method based on an intelligent card, which comprises the following steps: acquiring and transmitting face data; judging the quality of the face data; adjusting the brightness for the face data with qualified quality; extracting face features, and transmitting the face features to the intelligent card by an encrypted way; and comparing the face images, anddetermining whether the identification passes or not. The invention also discloses a face recognition system which comprises a face detection module, a data safety communication module, a face imagequality judging module, a face image brightness adjusting module, a face feature extracting module and a face verification module. By adopting the system and the method of the invention, the defect ofthe reduction of the recognition effect caused by attitude deviation is eliminated, and the recognition rate is greatly improved. In addition, in the process of comparing the face images, the writingspeed ...

Solid medium pollen and preparation method and use thereof

The present invention discloses a solid media pollen, a preparation method and the application thereof. Tobacco pollen parent anther is collected and aired to loose pollen; the pollen is sieved by a 50-mesh sieve; starch or flour is mixed with the collected pure tobacco pollen evenly according to the volume ratio of 1:2-4; and the required solid media pollen is obtained. The solid media pollen is dipped by a cotton swab or a brush pen and is smeared on a female parent tobacco flower stigma for artificial pollination. The use of the solid media pollen improves the effective utilization rate of the tobacco pollen, reduces the usage amount of the pure pollen, saves the manpower and material resources used for collecting the pollen and reduces the planting area of tobacco pollen parent and the hybrid seed production cost. The popularization and the application of the technology have good economic benefit and social benefit.

Method for preparing alternaria alternate culture medium

The invention discloses a method for preparing an alternaria alternate culture medium, which comprises the following steps of: (1) preparing materials comprising 20 to 40 grams of oat, 10 to 30 milliliters of tobacco leaf juice, 1,000 milliliters of water and 10 to 25 grams of agar; and (2) preparing the culture medium, namely boiling 950 milliliters of clean water and then adding the oat into the boiling water, filtering to remove the oat by using three layers of medicinal gauze after at least 3 minutes, adding flue-cured tobacco juice into the filtrate, adding the rest clean water till 1,000 milliliters, adjusting the pH value of the culture medium to be between 5.5 and 7.5 by using lactic acid, adding agar into the culture medium, packing the culture medium, sterilizing the culture medium for at least 20 minutes at the high temperature of 121 DEG C, and cooling the culture medium. Proper tobacco leaf juice is added into the culture medium and reasonably matched with the rolled oat and ...

Method for preparing tensile sample of steel cord

The invention provides a method for preparing a tensile sample of a steel cord. The method comprises the following steps: (1) fixing; (2) backtwisting; (3)hot galvanizing; and (4) casting. The method has the advantages of simple and flexible operation, low production cost and accurate test result; and the sample of the steel cord can be prepared according to an actually needed length, a special tensile test clamp for the steel cord is not needed for the sample, so that the test can be carried out on the common tensile tester.

Fast precise ion beam etching method for pure phase part

The present invention relates to ion beam etching process of pure phase element (PPE). Its dot matrix calcualting process is one "variable parameter" one based on forced self-consistent iterative algorithm with less time consumption. That is, some specific parameters are altered during the calculation by using the dependence of PPE to systemic parameters, and this can reduce greatly the gidscontinuous lines of phase distribution while ensuring the required output light field and raise the precision of subsequent into beam etching. The present invention can realize the fast and precise ion beam etching of PPE.

Automatic seed soaking pregermination device

The invention discloses an automatic seed soaking pregermination device which comprises a seed soaking pregermination tank (1) and a control device (2); wherein, the bottom of the seed soaking pregermination tank (1) is provided with a water drain valve, and the seed soaking pregermination tank (1) respectively controls an oxygenation device, a heating device and a cooling device by the control device (2); the oxygenation device is communicated with an oxygenation pipeline arranged at the bottom of the seed soaking pregermination tank (1) through a gas pipeline (9); the heating device includesa sterilizing heating device and a heat insulating heating device, and the sterilizing heating device is communicated with the heat insulating heating device through a steam conduit and then communicated with the seed soaking pregermination tank (1); the cooling device is communicated with the upper part and the lower part of the seed soaking pregermination tank (1) through a low temperature water ...

Call processing method adapted for application server

Oil smoke purifier suitable for updraft smoke exhauster

The invention belongs to the field of oil smoke purifying technology for catering trade, in particular to an oil smoke purifier suitable for updraft smoke exhausters. The oil smoke purifier comprises The invention belongs to the field of oil smoke purifying technology for catering trade, in particular to an oil smoke purifier suitable for updraft smoke exhausters. The oil smoke purifier comprisesa gas into water vapor and carbon dioxide gas to achieve the function of treating both the incidental and fundamental aspects. Thus the oil smoke purifier is more environmentally friendly and causes ne gas into water vapor and carbon dioxide gas to achieve the function of treating both the incidental and fundamental aspects. Thus the oil smoke purifier is more environmentally friendly and causes no pollution.o pollution. case, a catalytic unit and a heating unit, wherein the catalytic unit is arranged in the case, and the heating unit is installed on the case. The catalytic unit comprises a front ...

Tobacco black shank resistance disease nursery identification method

The invention relates to a method for identifying tobacco black shank resistance in disease nursery. A continuous cropping tobacco field in a historical high occurrence area of the tobacco black shank disease is selected as a disease nursery; plants are inducted to develop the disease through the improvement of the field humidity, so that the complex operation of strain separated storage and culture is reduced; the strain is sourced from the field; the quantity and variety of the microspecies for inoculation are theoretically unlimited; and the method has better diversity and representativeness, and the inoculation conditions are under the control of nature, so the identification results reflect the local practical situation of the day more correctly. A one-off uprooting investigation method after the collection of the flue-cured tobacco is adopted so as to greatly reduce the workload, save the cost and bring about a correct and reliable result. The method is characterized by low costand ...

Self-balanced mechanical seal

The invention discloses a self-balanced mechanical seal, wherein a moving ring component comprises a sealing ring (13), a spring (7), a transmission seat (9) connected with a shaft (10) and a moving ring (5); a spring groove (8) is arranged on the transmission seat (9); two ends of the spring (7) respectively abut between a spring pad (6) and the spring groove (8); three planes I (15) are uniformly distributed on circumference external surface of the moving ring (5); three convex edges (9.1) are uniformly distributed on a left end of the transmission seat (9); inner side of the convex edges (9.1) is a plane II (19) matched with the planes I (15); an arc-shaped groove (17) is arranged on the plane II (19); a straight line loss edge (18) is arranged on outer circumference of the spring seat(6); a step bore is arranged at a right end of the moving ring (5); and a moving sealing ring (13) is arranged in the step bore in an interference fit manner. The invention has long service life, stable ...

TOBACCO MOSAIC VIRUS RESISTANT N'AU GENE AND CLONING METHODS AND APPLICATIONS THEREOF

The invention relates to the isolation and the cloning and breeding application of a tobacco mosaic virus (TMV) resistant N'au gene. The invention discloses the nucleotide sequence of the TMV resistant N'au gene shown as SEQ ID NO.1. The amino acids of polypeptide encoded by the TMV resistant N'au gene are shown as SEQ ID NO.2. A non-transgenic TMV resistant tobacco variety can be obtained by transferring an N'au gene which is contained by germplasm resources into a TMV infected popular tobacco variety by conventional breeding means. The N'au gene of the invention has a homologous sequence with high identity rate of nucleotides in the popular tobacco variety, so that it is easy to obtain a shorter introgression segment single plant carrying the N'au gene by conventional breeding, and thereby to obtain a TMV resistant variety with lower linkage drag. The gene can resist both U1 strain and Cg strain of TMV. The novel antiviral gene N'au of the invention has great application prospect in cultivation of a TMV resistant tobacco. 1. A tobacco mosaic virus resistant N'au gene , characterized in that the base sequence of the tobacco mosaic virus resistant N'au gene is shown as SEQ ID No.1.2. The tobacco mosaic virus resistant N'au gene according to claim 1 , characterized in that the strain of the tobacco mosaic virus is TMV-U1 claim 1 , or TMV-Cg.35-. (canceled)6. A polypeptide encoded by the tobacco mosaic virus resistant N'au gene according to claim 1 , characterized in that the amino acid sequence thereof is shown as SEQ ID No.2.78-. (canceled)9. An application of the tobacco mosaic virus resistant N'au gene according to claim 1 , characterized in that a tobacco plant comprising N'au gene is obtained by a chromosome segment introgression claim 1 , a gene introduction and/or gene editing.10. The application of the tobacco mosaic virus resistant N'au gene according to claim 9 , characterized in that the method for obtaining a tobacco plant comprising N'au gene by a ...

Tmv resistant tobacco plant containing short n introduced fragment and method for breeding same

A TMV resistant tobacco plant containing a short N introgressed segment and a method for breeding the same. A homozygous tobacco plant containing an N introgressed segment is hybridized with a tobacco plant of genotype nn to obtain an F1 progeny tobacco plant of genotype Nn. The F1 progeny tobacco plant is hybridized with the tobacco plant of genotype nn, to obtain population materials for screening to obtain the short N introgressed segment. TMV is inoculated at a seedling stage, and Nn genotype plants showing necrotic lesion are obtained by screening the population materials. The Nn genotype plants are genotyped using a molecular marker TN5.51 primer pair and an N gene-specific molecular marker N1N2 at the right end of the N introgressed segment. A plant found to be negative when tested by the TN5.51 primer pair and to be positive when tested by the N1N2 molecular marker is a plant comprising the short N introgressed segment. The size of non-target genomic components deleted from plants containing the short N introgressed segment is estimated using TN5.34 and TN5.20 and TN4.99 primer pairs. The obtained short N introgressed segment is applicable to germplasma innovation and breeding of TMV resistant tobacco. The invention is helps to reduce linkage drag with the N gene.

Tobacco arsenic transport gene NtNIP7-1 and cloning method and applications thereof

A tobacco arsenic transport gene NtNIP7-1 and a cloning method and application thereof are disclosed. A nucleotide sequence of the tobacco arsenic transport gene NtNIP7-1 is shown as SEQ ID: No. 1, and an encoded amino acid sequence thereof is shown as SEQ ID: No. 2. The cloning method of the tobacco arsenic transport gene NtNIP7-1 includes (S1) extracting RNA in tobacco, performing reverse transcription, and obtaining a first-strand cDNA; and (S2) taking the first-strand cDNA obtained by the reverse transcription as a template, synthesizing a specific primer according to sequences of the NtNIP7-1 gene, performing PCR amplification, recovering and purifying a product of the PCR amplification, and sequencing. In the present invention, inhibition of the expression of the tobacco endogenous gene NtNIP7-1 in tobacco plants is able to significantly reduce the arsenic content of tobacco leaves, and has broad application prospects in the field of low arsenic content breeding.

TRUCKLE STRUCTURE AND CABINET

Provided are a truckle structure and a cabinet. The truckle structure comprises: a truckle and a support, wherein the truckle includes a mounting base and a wheel rotatably mounted on the mounting base; the support is composed of a mounting portion located at a lower middle position as well as two connecting portions respectively located on two sides of the mounting portion; the two connecting portions are formed in a manner that the left side and the right side of the mounting portion are upwards bent towards the middle, the support is rotatably connected to the mounting base through the two connecting portions, and the mounting base is located between the two connecting portions; and a mounting hole is formed in the mounting portion, center of the mounting hole and center of gravity of the truckle are on a same straight line, and center of gravity of the support deviates from the straight line. The truckle structure can be directly mounted on the ground and is firmer and more durable. 1. A truckle structure , comprising:a truckle including a mounting base and a wheel which is rotatably mounted on the mounting base;a support composed of a mounting portion located at a lower position as well as two connecting portions respectively located on two sides of the mounting portion, wherein the two connecting portions are formed in a manner that a left side and a right side of the mounting portion are upwards bent towards a middle, the support is rotatably connected to the mounting base through the two connecting portions, and the mounting base is located between the two connecting portions; and a mounting hole is formed in the mounting portion, center of the mounting hole and center of gravity of the truckle are on a same straight line, and center of gravity of the support deviates from the straight line.2. The truckle structure according to claim 1 , wherein the mounting base has flat side faces claim 1 , and upper portions of the connecting portions are formed as flat ...

Connecting fastener structure and cable management frame

Provided are a connecting fastener structure and a cable management frame. The connecting fastener structure comprises: a main frame body and a cover plate on which a connector is assembled, wherein the cover plate is detachably connected to the main frame body through the connector; connecting through holes are formed in the connector; at least one pair of connecting protrusions matched with the connecting through holes are arranged on the main frame body; a gap exists between the connecting protrusions of the same pair; the connector is inserted into the gap, and in this case, the connecting protrusions are clamped in the connecting through holes; and a whole structure composed of the cover plate and the connector can be directly disassembled from the main frame body, or be connected to the main frame body in an articulated manner, and in this case, the connector is connected to the main frame body in an articulated manner. The connecting fastener structure is convenient to use.

Fully articulated extendable wall-mounted shelf and method for transporting same

Disclosed is a fully articulated extendable wall-mounted shelf, including: a back plate; first side plate capable of rotating relative to the back plate to be flush with and/or attached to the back plate, the first side plate assembly including first connecting plate, first extendable plate and first fixing plate, the first extendable plate being capable of being extendably adjusted relative to the first connecting plate, the first fixing plate being rotatably connected to the first connecting plate; and second side plate assembly capable of rotating relative to the back plate to be flush with and/or attached to the back plate, the second side plate assembly including second connecting plate, second extendable plate and second fixing plate, the second extendable plate being capable of being extendably adjusted relative to the second connecting plate, the second fixing plate being rotatably connected to the second connecting plate.

Tobacco mosaic virus resistant N'au gene and cloning methods and applications thereof

The invention relates to the isolation and the cloning and breeding application of a tobacco mosaic virus (TMV) resistant N′au gene. The invention discloses the nucleotide sequence of the TMV resistant N′au gene shown as SEQ ID NO.1. The amino acids of polypeptide encoded by the TMV resistant N′au gene are shown as SEQ ID NO.2. A non-transgenic TMV resistant tobacco variety can be obtained by transferring an N′au gene which is contained by germplasm resources into a TMV infected popular tobacco variety by conventional breeding means. The N′au gene of the invention has a homologous sequence with high identity rate of nucleotides in the popular tobacco variety, so that it is easy to obtain a shorter introgression segment single plant carrying the N′au gene by conventional breeding, and thereby to obtain a TMV resistant variety with lower linkage drag. The gene can resist both U1 strain and Cg strain of TMV. The novel antiviral gene N′au of the invention has great application prospect in cultivation of a TMV resistant tobacco.

Truckle structure and cabinet

Provided are a truckle structure and a cabinet. The truckle structure comprises: a truckle and a support, wherein the truckle includes a mounting base and a wheel rotatably mounted on the mounting base; the support is composed of a mounting portion located at a lower middle position as well as two connecting portions respectively located on two sides of the mounting portion; the two connecting portions are formed in a manner that the left side and the right side of the mounting portion are upwards bent towards the middle, the support is rotatably connected to the mounting base through the two connecting portions, and the mounting base is located between the two connecting portions; and a mounting hole is formed in the mounting portion, center of the mounting hole and center of gravity of the truckle are on a same straight line, and center of gravity of the support deviates from the straight line. The truckle structure can be directly mounted on the ground and is firmer and more durable.

Radio-frequency module waterproof structure and radio-frequency module having same

Uso de um gene nau resistente ao vírus do mosaico do tabaco, cassete de expressão recombinante, método para produzir uma planta de tabaco transgênica e método de identificação de uma planta de tabaco tendo um gene nau resistente ao vírus do mosaico do tabaco

a presente invenção refere-se ao isolamento e à aplicação de clonagem e reprodução de um gene n?au resistente ao vírus do mosaico do tabaco (tmv). a invenção descreve a sequência de nucleotídeos do gene n?au resistente ao tmv apresentado como seq id no: 1. os aminoácidos do polipeptídeo codificado pelo gene n?au resistente ao tmv são apresentados como seq id no: 2. uma variedade não transgênica de tabaco resistente ao tmv pode ser obtida por transferência de um gene n?au que está contido em fontes de germo-plasma para uma variedade de tabaco popular infectada com tmv por meios de reprodução convencionais. o gene n?au da invenção tem uma sequência homóloga com elevada taxa de identidade de nucleotídeos na variedade de tabaco popular, de modo que é fácil obter uma única planta com segmento de introgressão mais curto portadora do gene n?au por reprodução convencional, e, desse modo, obter uma variedade resistente ao tmv com menor resistência à ligação. o gene pode resistir tanto à cepa u1 quanto à cepa cg de tmv. o novo gene antiviral n?au da invenção tem grande potencial de aplicação no cultivo de um tabaco resistente ao tmv.

Method for screening of tobacco nicotine converters

A method for identifying converters from tobacco seedling population. The method includes: 1) sowing and cultivating tobacco seeds to be identified for 45-55 days; sampling a plurality of leaf disks from each of 45-55 days old seedlings; 2) incubating the plurality of leaf disks of each seedling in a sealed container at 37° C. for 10-12 hours, thereby obtaining a plurality of incubated tobacco leaves of each seedling; 3) immersing the plurality of incubated tobacco leaves of each seedling in an extractant, extracting alkaloids and obtaining an extract of each seedling; 4) analyzing the amounts of nicotine and nornicotine in the alkaloids extract of each seedling; and 5) automatically recognizing peaks of the alkaloids extract of each seedling, and calculating the percent nicotine conversion (PNC) and the pseudo percent nicotine conversion (PPNC).

Method for screening of tobacco nicotine converters

A method for identifying converters from tobacco seedling population. The method includes: 1) sowing and cultivating tobacco seeds to be identified for 45-55 days; sampling a plurality of leaf disks from each of 45-55 days old seedlings; 2) incubating the plurality of leaf disks of each seedling in a sealed container at 37° C. for 10-12 hours, thereby obtaining a plurality of incubated tobacco leaves of each seedling; 3) immersing the plurality of incubated tobacco leaves of each seedling in an extractant, extracting alkaloids and obtaining an extract of each seedling; 4) analyzing the amounts of nicotine and nornicotine in the alkaloids extract of each seedling; and 5) automatically recognizing peaks of the alkaloids extract of each seedling, and calculating the percent nicotine conversion (PNC) and the pseudo percent nicotine conversion (PPNC).

Molecular Marker Nicotine Associated SNP 1 for Identifying High or Low Nicotine Content of Tobacco and its Kit as well as Use thereof

The present invention “A Molecular marker Nicotine Associated SNP 1 for identifying high or nicotine content of tobacco and its kit as well as use thereof” belongs to field of molecular biology technology. The molecular marker Nicotine Associated SNP 1 is a SNP Nitab4.5_0002539:95304 A/G at base No. 95304 of Genomic segment No. 0002539 in tobacco genome version of Nitab v4.5 Genome Scaffolds Edwards2017. The present invention can accurately identify and screen tobacco germplasm resources with high or low nicotine content, and the screened tobacco can be directly used for breeding new tobacco varieties without transgenic methods. At the same time, gene sequence where the SNP site is located can also significantly activate promoters of key enzyme genes in nicotine synthesis pathway.