102results about How to "Reduce selection cost" patented technology

The invention belongs to the technical field of soybean molecule biology, and particularly relates to an SNP marker relevant with soybean seed oil contents, a zone, a primer and application. The SNP marker is positioned at the 43173920th site of the No.18 chromosome of a soybean, and a nucleotide of the SNP marker is A or T; a nucleotide sequence of the marker sequence is shown in SEQ ID NO.1; a marker zone is ranged from the 43163920th site to the 43183920th site of the No.18 chromosome of the soybean. The SNP marker belongs to a codominant marker, is reliable and is convenient to use, so that a great convenience is provided for performing selective breeding on varieties of high oil contents of the soybeans, and the SNP marker can be applied to auxiliary selection of the molecular markerin improvement of soybean seed oil contents as well as fine location and map-based cloning of relevant genes of seed oil contents, so that an improved progress of the soybean seed oil content characters is accelerated.

The invention belongs to the field of environment microbiology, and particularly discloses a strain of Klebsiella sp. Bacteria CGMCC13201. The bacteria can effectively degrade crude oil of oil-containing sludge, oil-containing silt in the soil polluted by the crude oil and the like. In addition, the invention also discloses a method for degrading oil stains by using the bacteria.

The invention provides a preparation method and application of a fluorescence-MRI (Magnetic Resonance Imaging) dual-mode image probe, and particularly relates to a dual-mode image probe which combines a fluorescent nanoparticle and a paramagnetic contrast agent and a preparation method thereof, belonging to the field of functional materials. The main process of the method comprises the following step of: removing residues and moisture through dialysis and freeze-drying by taking an amino compound as a surface passivation agent and a gadolinium-based complex as a carbon source material and adopting a one-step forming method to obtain a fluorescence-MRI dual-mode gadolinium-doped carbon quantum dot. The method provided by the invention ahs the characteristics of simple process, low cost and easiness for large-scale production. The fluorescence-MRI dual-mode gadolinium-doped carbon quantum dot prepared through the method has the excellent characteristics of higher fluorescent property, higher relaxation efficiency, good biocompatibility and the like, is successfully applied to in-vitro live cell fluorescence imaging and in-vivo magnetic resonance imaging; the fluorescence-MRI dual-mode gadolinium-doped carbon quantum dot synthesized through the method is about to have wide application prospect in the field of biomedicine.

The present invention relates to a system and method for providing a mobile communication network in a vehicle. The system comprises a master control module, a wireless network module and a mobile communication module connecting the master control module with the wireless network module, wherein the master module is used to send an instruction to create a link to the mobile communication module; the mobile communication module is used to establish a long connection with a target server after receiving the instruction to create a link, to keep a real-time mobile communication network link with the target server; and the wireless network module is used to establish a wireless local area network link in a vehicle with a mobile terminal according to a local area network link request of the mobile terminal in the vehicle, and to provide a mobile communication network for the mobile terminal by the connection with the mobile communication module. By means of the technical solution of the present invention, choice costs of the master control module may be reduced, and the problem of delay of data communication with the target server due to the fact that the first wake-up time is too long may be avoided.

The invention discloses an on-line upgrading control method and a home appliance system. The home appliance system comprises a functional component connected with an external memory. The on-line upgrading control method comprises the following steps: the server is inquired whether there is an available software update of the functional component; if so, the available software updates are downloaded to the external memory, and the original software of the functional component is backed up to the external memory; and available software updates are obtained from an external memory and updating the functional components to be updated with the available software updates when the functional components to be updated are idle or the home appliance system is restarted. As such, when a software update is available for that home appliance system, the software version is automatically downloaded and updated, and the downloaded usable software updates and the original software are stored in an external memory. On the premise of ensuring that the software upgrades can be rolled back, the modification of each piece of electronic control hardware of the household appliance system is reduced, and the master control chip with larger storage space need not be replaced, so as to reduce the type selection cost of the master control chip.

The invention provides a zero-finding device for the limiting turntable of an airport runway foreign matter detection system. A limiting disc is arranged on the motor rotating shaft of a limiting turntable. A positioning ring and the limiting disc are absolutely coaxially and fixedly mounted. The positioning ring is not rotated along with the limiting turntable. The limiting disc is provided with a zero-finding start bit light slit and a zero-finding bit light slit along the radial direction of the limiting disc according to the zero-finding direction of the limiting turntable during the start-up process. A photoelectric switch is accurately positioned at a mechanical home position of the positioning ring and is maintained stationary. In this way, during the rotation of the limiting disc, the zero-finding start bit light slit and the zero-finding bit light slit successively and correctly pass through the light pillar of the photoelectric switch to trigger the photoelectric switch, so that an electrical signal is generated. According to the technical scheme of the invention, the photoelectric switch is accurately positioned at the mechanical home position of the positioning ring, so that the relative assembly error during the assembling process is reduced. Meanwhile, the limiting disc is provided with light slits, and the switch is triggered based on the light permeability of the light slits. Therefore, the zero-finding positioning accuracy is greatly improved. At the same time, the selection cost of the photoelectric switch is lowered.

The invention belongs to the technical field of soybean molecular biology, and particularly relates to a molecular marker relevant with soybean seed methionine contents, a zone, a primer and application. The molecular marker is positioned at the 38617472th site of the No.2 chromosome of a soybean, and a nucleotide of the molecular marker is T or G; a nucleotide sequence containing the marker sequence is shown in SEQ ID NO.1; a marker zone is ranged from the 38517472th site to the 38717472th site of the No.2 chromosome of the soybean. The molecular marker belongs to a codominant marker, is reliable and is convenient to use, so that a great convenience is provided for performing selective breeding on varieties of high methionine contents of the soybeans, and the molecular marker can be applied to auxiliary selection of the molecular marker in improvement of soybean seed methionine content as well as fine location and map-based cloning of relevant genes of seed methionine content, so thatan improved progress of the soybean seed methionine content characters is accelerated.

The invention relates to the field of medicine production and in particular relates to a preparation method of a lansoprazole crystal type compound. The preparation method disclosed by the invention comprises the following steps of: by taking 2-mercapto benzimidazole and 2-chloromethyl-3-methyl-4-(2,2,2-trifluoroethoxy) pyridine hydrochloride as raw materials, carrying out condensation reaction and oxidation reaction, and refining to prepare the lansoprazole crystal. In the preparation process, the preparation condition is strictly controlled; the raw materials are low in cost and easy to purchase; the raw materials are reacted to finally generate the lansoprazole crystal type compound; samples are basically invariant in related substances and contents under the condition with high temperature and high humidity; the articles are stable in property and low in overall manufacturing cost; and the preparation method of the lansoprazole crystal type compound has the advantages of strictly controlling the temperatures in the steps, being less in by-products, high in yield and non-toxic, and also has the advantages of short production period and further improving the production efficiency.

The invention discloses a machining technology facilitating the improvement of nozzle machining efficiency. The technology includes the following steps that (A), a blank is forged; (B), heat treatment is performed; (C), machining is performed; (D), finish machining is performed. The step (C) is performed before the step (B), in the step (A), the blank is made of 45 # steel, the forging temperature range is 875 DEG C-1025 DEG C, a reverberating furnace is adopted as a forging heat source, the step (B) includes quenching and tempering after quenching, and the step (D) is performed after the step (B). The technology is simple, material low in cost and convenient to obtain is selected, and a nozzle meeting the strength requirement can be obtained through the reasonable technology. Compared with the prior art, the technology is low in machining difficulty and beneficial to improving production efficiency of the nozzle and reducing production cost of the nozzle.

The invention discloses a fuel cell hybrid power system performance test system. The performance test system comprises a voltage regulation unit, an electronic load, a data processing unit and a power distribution unit; the voltage regulating unit and the electronic load are connected with the direct-current bus; the power distribution unit is connected with the electronic load and is used for adjusting the load output by the electronic load; the electronic load is used for simulating vehicle conditions; under the working condition of vehicle power output, the voltage regulating unit is used for regulating the output voltage to simulate the influence of the energy storage unit on the bus voltage; under the braking energy recovery working condition, the voltage regulating unit is used for changing the bus voltage to simulate the fluctuation of the bus voltage caused by braking energy and power feedback; and the data processing unit is connected with the fuel cell, the voltage regulating unit and the electronic load respectively and is used for acquiring data of the fuel cell, the voltage regulating unit and the electronic load so as to perform performance evaluation and matching test. The system has the advantages of low test cost, good test comprehensiveness, high test efficiency and the like.

The invention discloses an insulation polyurethane acrylate plastic paint and a preparation method thereof. The insulation polyurethane acrylate plastic paint comprises the following components: by weight, 20-30 parts of polyurethane acrylate, 5-8 parts of a photosensitizer, 5-10 parts of a sensitizer, 10-20 parts of stabilizers, 2-3 parts of calcium sulfite, 1-2 parts of benzophenone, 2-8 parts of N,N-dimethylbenzylamine, 5-14 parts of 2-trans-3,7-dimethyl-2,6- octadiene-1-ol, 6-12 parts of dimethyl distearylammonium chloride, 1-2 parts of aluminum chloride hexahydrate, 10-12 parts of acrylonitrile-butadiene-styrene and 1-13 parts of methacrylic acid. The insulation polyurethane acrylate plastic paint has the advantages of low cost, good insulation properties, low content and low toxicity of volatile matter, low high-temperature dielectric loss, good stability and good resistance properties.