17results about How to "Increase incidence" patented technology

The present invention provides a quantum random number generator based on laser phase fluctuations. The quantum random number generator includes: a laser, an interferometer, a photodetector and an analog-to-digital converter; the laser is used to generate a signal light with phase fluctuations, and output the signal light to the interferometer; the interferometer is used to convert the phase fluctuations in the signal light into intensity fluctuations, and output the converted signal light to the photodetector; the photodetector is used to convert the light intensity in the received signal light into a current signal, and output the obtained current signal to the analog-to-digital converter; the analog-to-digital converter is used to convert the received current signal into a discrete digital signal and output it. The present invention can be used to generate random numbers using the phase fluctuations of the laser, greatly improving the generation rate of quantum random numbers and reducing costs.

The invention provides an agrobacterium rhizogenes-mediated papaya hairy root genetic transformation method and a papaya transgenic positive plant, and belongs to the technical field of plant genetic engineering. The invention provides a papaya genetic transformation method independent of tissue culture, which can directly utilize agrobacterium rhizogenes to treat explants for culture to obtain papaya transgenic positive plants without a series of tedious and complicated sterile processes such as callus induction and induced differentiation rooting. The problems of long tissue culture transformation period, large manpower and material resource consumption, low positive rate and the like are avoided. The constructed agrobacterium rhizogenes mediated genetic transformation system has the characteristics of high efficiency, stability and rapidness, the agrobacterium rhizogenes K599 cultured by using the solid TY culture medium can directly infect wounds, the operation is simple, the hair root incidence rate and the positive rate are relatively high, additional experimental equipment is not needed, and the method is suitable for most laboratories.

The invention discloses an induction method for obtaining a transgenic persea americana composite plant without tissue culture, and belongs to the technical field of persea americana biology. The induction method provided by the invention comprises the following steps: germinating avocado seeds by using quartz sand to obtain avocado seedlings, infecting rootless seedlings from the avocado seedlings by adopting a vacuum infiltration method, and inserting the rootless seedlings subjected to dip dyeing into a sterilized coco coir matrix for culturing to obtain the avocado composite plant. According to the method, an efficient avocado genetic transformation system mediated by agrobacterium rhizogenes is established, tissue culture is not needed, rootless seedlings are adopted as materials, the transformation efficiency is improved, meanwhile, consumption of experimental equipment, consumables and manpower is reduced, the problem that the avocado genetic transformation system is not established yet is solved, and the method is suitable for popularization and application. The technical effect of quickly, efficiently, simply and easily obtaining the transgenic material with low consumption is achieved, and a more convenient and efficient way is provided for genetic transformation of avocados.

The GaN-based compound semiconductor laser element comprises a substrate, a lower limiting layer, a lower waveguide layer, an active layer, an upper waveguide layer and an upper limiting layer which are sequentially arranged from bottom to top, and an electron spin state regulation and control layer is arranged between the lower limiting layer and the lower waveguide layer. And designing piezoelectric polarization coefficient distribution of a first electron spin state regulation layer and a second electron spin state regulation layer in the electron spin state regulation layer, and a relation of piezoelectric polarization coefficients among the lower limiting layer, the lower waveguide layer, the first electron spin state regulation layer and the second electron spin state regulation layer. The performance of the semiconductor laser element can be improved.

The invention relates to the technical field of animal feed, and discloses compound bacteria, a biological fermentation agent containing the compound bacteria, fermented brewer's grains and application of the compound bacteria, the biological fermentation agent and the fermented brewer's grains. The compound bacterium comprises aspergillus niger, bacillus subtilis and a pichia pastoris modified bacterium, the preservation number of the aspergillus niger is GDMCC (Graphics Digital Microorganisms for China Center for Culture Collection) No.64995, the preservation number of the bacillus subtilis is GDMCC No.64996, and the pichia pastoris modified bacterium is a gene modified bacterium P.pastoris GS115 / pGAPZ-NBLF-N. The invention further discloses a preparation method of the compound bacterium for preparing the compound bacterium, and the compound bacterium has the advantages that the preservation number of the aspergillus niger is GDMCC No.64995, the preservation number of the bacillus subtilis is GDMCC No.64995, and the preservation number of the bacillus subtilis is GDMCC No.64996. The biological leavening agent comprises compound bacteria and bran, and the fermented brewer's grains obtained through treatment of the biological leavening agent can improve the protein content, reduce cellulose, enhance the nutritional quality of animal feed, increase the resistance of animals and improve economic benefits.

Belonging to the technical field of photovoltaic glass, the invention relates to light conversion coated glass, which comprises a transparent conductive glass layer, an up-conversion coating for absorbing infrared light and emitting visible light, a down-conversion coating for absorbing ultraviolet light and emitting visible light, a nickel oxide hole transport layer, a perovskite light absorption layer, a C60 layer, an electron transport layer and a Cu layer, the transparent conductive glass layer, the lower conversion coating, the upper conversion coating, the nickel oxide hole transport layer, the perovskite light absorption layer, the C60 layer, the electron transport layer and the Cu layer are sequentially arranged from bottom to top. The light conversion coated glass can effectively convert ultraviolet light and infrared light into visible light and improve the utilization rate of incident light, so that the photoelectric conversion efficiency of the photovoltaic cell is improved; after the down-conversion coating and the up-conversion coating are compounded, the down-conversion technology and the up-conversion technology are comprehensively utilized, and the overall photoelectric conversion efficiency of the light conversion coated glass can be improved by 5-8%.

The embodiment of the invention relates to the technical field of photoelectric detection, in particular to a laser-induced periodic structure enhanced photoelectric detector and a preparation method thereof, and the photoelectric detector comprises a substrate layer, a grating template layer, a bottom surface metal layer, a semiconductor layer and a surface metal layer from bottom to top; injection light is injected into the surface metal layer, surface plasmon polariton resonance is excited due to the nano grating structure of the surface metal layer, the absorption efficiency of the injection light is improved, and a wrinkle-shaped nano grating structure is arranged among the bottom surface metal layer, the semiconductor layer and the surface metal layer; the bottom surface metal layer, the semiconductor layer and the surface metal layer form a Fabry-Perot cavity structure, and after injected light enters a cavity, standing waves are formed in the cavity and interact with a material to generate an intra-cavity resonance enhancement effect; by adjusting the period of the grating structure of the grating template layer and the thickness of the semiconductor layer, multi-wavelength selection of the photoelectric detector can be realized. The photoelectric detector is simple and convenient to prepare, can be flexibly regulated and controlled and is suitable for batch production.

This utility model discloses an auxiliary charging structure for open-pit water-bearing blast holes, including a water-bearing blast hole and an auxiliary charging mechanism. The auxiliary charging mechanism further includes a longitudinal guide cable, a counterweight, emulsion explosive rolls, a detonating cord, a transverse fixing cable, and a plugging section. The bottom end of the longitudinal guide cable is connected to the counterweight, which is located at the bottom of the water-bearing blast hole. The top end of the longitudinal guide cable extends to the outside of the water-bearing blast hole. Several rolls of emulsion explosive are wrapped from bottom to top on the longitudinal guide cable above the counterweight via the transverse fixing cable. Each roll of explosive also contains the same detonating cord, the top end of which extends to the outside of the water-bearing blast hole along with the longitudinal guide cable. The plugging section is located at the top of the water-bearing blast hole. The function of this utility model is to provide an auxiliary charging structure for open-pit water-bearing blast holes, thereby optimizing the charging structure, improving blasting effects, and reducing the residual explosive rate.

The invention belongs to the technical field of plant tissue culture and genetic transformation, and particularly relates to a method for obtaining a plant high-frequency embryogenesis material. The method comprises the following steps: inoculating a plant explant to a callus induction culture medium for culturing; carrying out continuous subculture on the callus for 4-6 times; transferring the embryogenic callus growing after the subculture to a budding culture medium for culture, and inducing the embryogenic callus on the budding culture medium to form adventitious buds; transferring the adventitious buds to a rooting culture medium, and culturing until rooting; and transplanting the plant with the root system, and culturing until the plant is mature and fruitful to obtain the high-frequency embryogenesis material. According to the method provided by the invention, a mature embryo of a low-frequency embryogenesis material can be inoculated on an induction culture medium, embryogenic calluses are formed through induction, the formed embryogenic calluses are regenerated and induced into seedlings, and a high-frequency embryogenesis material under the genotype background can be obtained through one-time or multiple-time repeated screening.

The present invention relates to the field of crop genetic breeding, and in particular to a method for inducing guava hairy roots without tissue culture. The present invention uses pretreated guava seedlings as explants, uses Agrobacterium rhizogenes carrying a reporter gene and a target gene to infect the explants, and then transfers the infected explants to a culture matrix for cultivation, thereby successfully establishing a simple, low-cost and efficient genetic transformation system for obtaining transgenic materials. Compared with traditional guava genetic transformation methods, the induction method provided by the present invention does not require tissue culture, improves transformation efficiency, shortens the transformation cycle, and also reduces consumables and manpower consumption, thereby solving the problems of complex experimental operation, large-scale equipment and consumables, long cycle and low success rate in the original guava genetic transformation technology, and provides a convenient and efficient tool for the study of guava gene functions (especially root-specific expression of gene functions).

The utility model belongs to the field of organic solid waste treatment, and relates to a sludge and livestock and poultry manure combined treatment system which can solve the problem that the carbon nitrogen ratio of single livestock and poultry manure is unbalanced, shorten the anaerobic fermentation period, improve the biogas production rate and reduce the production cost. The system comprises a blending water tank, a desanding device, a mixing tank, a first-stage anaerobic fermentation tank, a second-stage anaerobic fermentation tank and a solid-liquid separation device which are connected in sequence, the first-stage anaerobic fermentation tank and the second-stage anaerobic fermentation tank are both connected with a biogas treatment system, livestock and poultry manure is introduced into the blending water tank, municipal sludge and a catalyst are introduced into the mixing tank, and the solid-liquid separation device is connected with the second-stage anaerobic fermentation tank. A liquid outlet of the solid-liquid separation device is connected with an ammonia stripping device, a liquid outlet of the ammonia stripping device is connected with the blending water tank, and a gas outlet of the ammonia stripping device is connected with an ammonia recovery device.

The invention discloses a graphene plasmon polarizer based on patterned nanogold array modification and application, and belongs to the technical field of optical communication. The graphene plasmon polarizer comprises a substrate silicon dioxide, a light absorption layer graphene, a patterned gold nano array and a top electrode source drain electrode. According to the invention, the nested gold nano cylinder and gold nano circular ring form a resonant cavity, the absorption wave band of the plasmon polarizer is regulated and controlled by using a surface plasmon resonance effect, the shape of the resonant cavity is changed by changing the relative position of the gold nano circular ring and the gold nano cylinder, and a nano structure with different resonant cavity sizes in all directions is formed. Therefore, the plasmon polarizer is sensitive to different polarized lights. Meanwhile, the local surface plasmon effect excited by the gold nano array increases the surface electric field of the graphene, the generation rate of electron hole pairs in the graphene is improved, and the detection efficiency of the plasmon polarizer is improved.

The utility model discloses a rapid heat dissipation device of a wire welding machine, and relates to the technical field of wire welding machines. The wire welding machine comprises a supporting table, a wire welding machine body is fixedly installed at the top end of the supporting table, wire welding guns which are symmetrically distributed are arranged on the front face of the wire welding machine body, a placing base is fixedly installed at the top end of the supporting table, and wire welding plates which are symmetrically distributed are movably clamped at the top end of the placing base. A fixing frame is fixedly installed at the top end of the supporting table, and symmetrically-distributed clamping grooves are formed in the inner side of the fixing frame. The screws are rotated through the motor, the two screws are rotated through the belt, the screws rotate to drive the moving block to move up and down, the moving block drives the fan body to move, the fan body is started to conduct heat dissipation on the welding wire gun, and rotation of the motor is controlled to enable the moving block to drive the fan body to conduct air blowing heat dissipation along with the welding wire gun. Therefore, the welding wire gun is cooled continuously and stably, the performance output of the welding wire gun becomes stable, and the working efficiency of the welding wire gun is improved.

A communication device (100) includes a communication unit (110) and a control unit (150). The communication unit (110) performs wireless communication using at least one of a plurality of beams. The control unit (150) acquires service communication quality corresponding to quality requested on a service. The control unit (150) obtains, by estimation, an estimated communication quality achievable by the communication unit (110), based on a radio wave propagation environment. Even in a case where a beam quality of a non-currently working beam, a beam which is not being used for wireless communication, is higher than the beam quality of a currently working beam, which is being used for wireless communication, the control unit (150) maintains the communication by the currently working beam in a case where the estimated communication quality is the service communication quality or more. In a case where the estimated communication quality is below the service communication quality, the control unit (150) determines switching of the beam.

The invention discloses a trusted computing protection method and system based on a desktop terminal, and the method comprises the following steps: (1) obtaining the current of each power line of the desktop terminal at each time point and the radio frequency of each signal line at each time point, and analyzing the qualification index of the electromagnetic compatibility of the desktop terminal; (2) performing virus detection on each system of the desktop terminal to obtain a virus immune coefficient of each system of the desktop terminal, acquiring the virus immune coefficient of each system of the desktop terminal, and analyzing a body safety protection qualification index of the desktop terminal; (3) detecting the desktop terminal by using IP encryption and full self-developed firmware to obtain backup data of the desktop terminal; (4) analyzing and displaying a trusted computing protection conformity index of the desktop terminal based on the obtained electromagnetic compatibility qualification index of the desktop terminal, the body safety protection qualification index of the desktop terminal and the data backup safety index of the desktop terminal; the occurrence rate of the problem of data loss of the desktop terminal is reduced, and then the occurrence rate of the problem of virus infection of the desktop terminal is reduced.

The utility model provides a circuit board with an anti-short circuit structure, which relates to the technical field of circuit boards and comprises an equipment mainboard, a circuit mainboard fixed at the top of the equipment mainboard, a cushioning frame arranged above the equipment mainboard, a circuit mainboard arranged on the inner wall of the cushioning frame, top limiting plates fixed at two sides of the top of the inner wall of the cushioning frame, and cushioning springs fixed at the bottoms of the top limiting plates. By adopting the mode of installing the cushioning springs, the problems that after the circuit board is installed, due to the fact that equipment actively or passively vibrates, the circuit board is impacted by vibration and is vibrated for a long time, elements on the surface of the circuit board continuously impact welding spots due to the influence of inertia of the elements, the fixing positions are loosened and fall off, and the circuit board is damaged are solved. Elements of the circuit board are small in interval and large in density, short contact of one ends of the elements can cause short-circuit burning of the circuit board or short-circuit breakdown of capacitors, smoke and even fire disasters are caused, use safety of users is affected, the occurrence rate of production equipment is increased, and casualties and property losses are caused.

The present application provides a light source device and a manufacturing method thereof. The light source device includes a micro light emitting element layer, a light-transmitting substrate, and a wavelength conversion module. The wavelength conversion module includes a first wavelength conversion layer, a second wavelength conversion layer, a light-transmitting layer, a plurality of isolation structures, a plurality of reflective layers, and a light-cutting layer. The first wavelength conversion layer, the second wavelength conversion layer, and the light-transmitting layer are arranged at intervals in an arrangement direction of the light-transmitting substrate. Any two of the first wavelength conversion layer, the second wavelength conversion layer, and the light-transmitting layer are separated from each other by the isolation structure. The reflective layer is located between any one of a side wall of the first wavelength conversion layer, a side wall of the second wavelength conversion layer, and a side wall of the light-transmitting layer and the isolation structure in the arrangement direction. The light source device has good optical efficiency.