52results about How to "Efficient research" patented technology

The invention provides a method of predicting reservoir fractures based on offset vector tile seismic pre-stack gather data. The reservoir fracture development density and fracture azimuth are directly inverted based on offset vector tile seismic data containing azimuth information. The defects of the conventional narrow-azimuth pre-stack seismic fracture prediction technology, such as low inversion accuracy and low spatial resolution, are overcome. More comprehensive and complete offset and azimuth information can be retained. More suitable seismic data is provided for azimuth anisotropy research. The method is more advantageous to the identification of fault, fracture and reservoir air water variation characteristics.

The invention relates to an entanglement imaging system based on dual-compression coincidence measurements. The system comprises a laser, a nonlinear crystal, a narrow-band filter, a beam splitter, a first group of imaging lenses, a second group of imaging lenses, a first spatial light modulator, a second spatial light modulator, a first group of light converging lenses, a second group of light converging lenses, a first point detector, a second point detector, a coincidence measurement circuit and an algorithm module. The laser generates pump light, an entanglement photon pair is produced through nonlinear crystal and is divided into a signal light path and an idle light path after passing through the narrow-band filter to be projected onto the first spatial light modulator and the second spatial light modulator respectively; light is modulated, the modulated light is collected onto the first point detector and the second point detector to be converted into electric signals which are input in the coincidence measurement circuit, and a coincidence measurement value is output; and the algorithm module rebuilds spatial correlation coefficient distribution through a compressive sensing algorithm according to a measurement matrix and the measurement value.

The invention discloses a method for measuring the antioxidant activity of lactic acid bacteria based on a cellular level and belongs to the technical field of microorganisms. According to the method, a full-wave fluorescent scanning type microplate reader with a 96-hole ferment plate based on the cellular level is utilized to replace a conventional spectrophotometer so as to measure the antioxidant capability of a treated sample; a fluorescent probe and a free-radical initiator are utilized to perform batched rapid and accurate measurement on lactic acid bacteria within 1 hour, so that a rapid detection method is provided for researching the antioxidant activity of the lactic acid bacteria at the cellular level; by utilizing the method, the antioxidant activity of the different strains of lactic acid bacteria can be measured within ultrashort time, and the antioxidant level of the lactic acid bacteria can be rapidly and accurately reflected.

The invention discloses a rubber tree powdery mildew in vitro culture method and a culture medium thereof, belonging to the technical field of plant pathology. The rubber tree powdery mildew in vitro culture method comprises the following steps of: firstly, preparing a nutrient solution and a culture disc; secondly, preparing an in vitro leaf; and thirdly, inserting the in vitro leaf after treating into a PCR plate hole filled with the nutrient solution, lightly brushing powdery mildew on an infected rubber tree leaf on the in vitro leaf which is treated with the nutrient solution by using a writing brush or a brush which is sterilized in 75 percent alcohol, arranging in an artificial climate box with the temperature of 23 DEG C and the moisture of 90 percent, carrying out light culture for 16h per day and carrying out dark culture for 8h per day. The rubber tree powdery mildew in vitro culture method has the advantages of convenience, durability and high efficiency and can be used for culturing rubber tree powdery mildew in a large scale, thereby realizing in vitro culture of the rubber tree powdery mildew on the leaf and solving the problems of culture and preservation of the rubber tree powdery mildew.

The invention discloses a simplified analysis method for an inherent frequency and the stability of a rotational symmetric structure. The method comprises the steps of establishing a complete dynamic differential equation of a system, a dynamic differential equation adopting a no-extension hypothesis, and a dynamic differential equation adopting an extension hypothesis: establishing the complete dynamic differential equation of the system; establishing the dynamic differential equation adopting the no-extension hypothesis; establishing the dynamic differential equation adopting the extension hypothesis; introducing coordinate conversion for converting the three dynamic differential equations to a support follow-up coordinate system so as to obtain corresponding three constant coefficient partial differential dynamic equations; performing discrete processing on the three constant coefficient partial differential dynamic equations in the support follow-up coordinate system to obtain three constant differential matrix equations; obtaining an eigenvalue of the complete dynamic differential equation and eigenvalues of two simplified dynamic differential equations; and analyzing a parametrically excited vibration mode characteristic and a dynamic stability change law of the rotational symmetric structure according to the three eigenvalues. According to the method, a specific analysis expression of system eigenvalues can be obtained more clearly.

An apparatus for testing and researching aquatic species is provided. The apparatus includes a housing rack for housing a tank. The apparatus further includes one or more dividers for dividing the at least one tank into one or more compartments. The apparatus further includes a collection channel and a downspout in each compartment for draining of water from each compartment. The apparatus further includes one or more lids for covering the one or more compartments.

After specifications of a power converter are determined, circuit parameter values, a semiconductor device to be used, and an equivalent circuit of the semiconductor device are determined, and parameter values of the equivalent circuit are extracted. Semiconductor device loss is calculated from semiconductor device equivalent circuit parameter data, circuit parasitic parameter data, and circuit basic parameters. Determination as to whether or not the circuit loss optimal value has been achieved is made in consideration of power conversion circuit component parameter data. When the optimal value has not been achieved, the circuit parasitic parameter values are set again so as to create the circuit parasitic parameter data. When the optimal value has been achieved, the semiconductor device loss and the circuit parasitic parameter values at that time are output as design data, and the power converter is designed by use of the optimized semiconductor device loss and circuit parasitic parameter values.

The invention relates to an automatic sampler capable of sampling by simultaneously using multiple cutting rings. The automatic sampler comprises a main rod (3), an expansion rod (4) and a drill bit (7), wherein the drill bit (7) is mounted at the bottom end of the main rod (3); the automatic sampling device is characterized in that the main rod (3) is connected with the expansion rod (4) by a driving device, the driving device drives the main rod (3) and the drill bit (7) to move axially up and down, multiple clamping slots are axially formed in different positions of the main rod (3), one cutting ring is arranged in each clamping slot, and soil with different depths can be simultaneously and automatically sampled by the multiple cutting rings. The driving device drives the drill bit (7) to automatically rotate, so a traditional manpower driving mode is changed, the sampling efficiency is greatly improved, and the physical power of a sampling person can be saved.

The invention relates to a ring cutter sampler which can simultaneously use multiple ring cutters for sampling, comprising a female rod (3) and a drill bit (7), the drill bit (7) is installed at the bottom end of the female rod (3), and other The feature is that: the female rod (3) is provided with a plurality of slots at different positions along the axial direction, and a ring knife is placed in each slot, and the plurality of ring knives realize simultaneous sampling of soil at different soil depths.

The invention discloses a test device for simulating smelting and tapping processes of a rotary furnace. The test device comprises a test device frame, wherein a track is arranged at the bottom of the test device frame, a water storage tank trolley is placed on the track, and a water storage tank is placed on the water storage tank trolley; a test platform is arranged above the track, and a molten steel rotary furnace model is placed on the test platform; lifting equipment is arranged at the top of the test device frame and connected with the molten steel rotary furnace model and drives the molten steel rotary furnace model to move in horizontal and vertical directions and incline in the vertical direction; a water circulating pump is fixed on the test device frame, one pipe orifice of the water circulating pump is connected with a water storage tank, and the other pipe orifice of the water circulating pump is connected with the molten steel rotary furnace model. The test device disclosed by the invention can be used for efficiently, conveniently and fast researching the steelmaking process and tapping process of the rotary furnace in a laboratory and has great significance on the researching and developing the steelmaking process, reducing slagging quantity, reducing the refining cost, and the like.

The utility model relates to a test platform of a multifunctional pressure oscillating tube with openings at both ends, which belongs to the technical field of high and low pressure gas pressure exchange and cold and heat separation. The test platform provides a multifunctional pressure oscillation tube test platform with both ends openings that takes into account the influence between the tubes, the flow field can be measured, the diameter and length of the tube can be adjusted, the tube shape can be changed, and it can be used for actual gas research. Its main body is composed of four parts: a shell, a central shaft, a cavity turntable, and a pressure oscillation tube with openings at both ends. It can meet the flow field test needs under different pipe diameters, pipe lengths, pipe shapes and multi-pipe requirements, provide accurate data for related mechanism research, provide basis for optimizing related structures and improving the performance of air wave machines, reduce research costs, shorten Research cycle; it can be used for experimental research with natural gas as the medium, and provide more accurate experimental data for the design and optimization of gas wave machines for natural gas exploitation, gathering and transportation. The platform is simple in structure and easy to operate, and can be used not only for experimental research, but also for small-scale refrigeration and pressurization occasions.

The invention discloses a three-dimensional panoramic historical market replaying method. The method comprises the following steps: 1) a client selects a market replay mode; 2) the client selects playback time, splices market data file names needing to be acquired according to the playback time and contract parameters and sends the market data file names to a historical market server; 3) the historical market server receives the request of the client, obtains a corresponding market data file from a historical market server, and transmits the corresponding market data file to the client; and 4)the client receives the corresponding market data file, decompresses and parses the market data file, puts the decompressed and parsed market data file into a memory, dynamically displays historicalmarket data according to a time axis sequence, and draws a graphical interface of the historical market data to a client. According to the invention, synchronous playback of the historical market conditions of the contracts of the whole market can be realized without time limitation, and investors can be helped to reproduce the market condition trend process of all contracts of each time node in history anytime anywhere without time limitation.

The invention provides a bridged diamidino titanium metal catalyst, which relates to olefin polymerization catalysts and specifically to a catalyst of diamidino ligand titanium complex characteristic of N-C-N-Si-N-C, with titanium atoms as a center. A preparation method for the catalyst comprises the following steps: under the protection of nitrogen, with tert-butylamine as a starting raw material, converting tert-butylamine into a lithium salt by using n-butyllithium; adding 1-naphthonitrile and carrying out an addition reaction; preparing bridged diamidino neutral ligand through bridging of dichlorodimethylsilane; converting the bridged diamidino neutral ligand into diamidino ligand by using n-butyllithium; reacting the diamidino ligand with titanium tetrachloride to prepare the catalyst. According to the invention, reaction conditions are mild, materials used are simple, easily available and cheap, reaction steps are simple, and yield of the catalyst is high; the catalyst has good catalytic activity on ethylene polymerization.

The invention provides a pMKRN1 (porcine Makorin ring finger protein 1) gene-knockout porcine somatic cell, a method for preparing the same and application of the pMKRN1 gene-knockout porcine somaticcell. The pMKRN1 gene-knockout porcine somatic cell, the method and the application have the advantages that mutant PK-15 (porcine kidney-15) cells can be obtained by the aid of gene knockout technologies, high-titer PCV2 (porcine circoviruses type 2) can be quickly replicated and obtained by the aid of the mutant PK-15 cells, and accordingly efficient virus amplification cells can be provided toresearch on PCV2 pathogenic mechanisms and preparation of PCV2 inactivated vaccine and attenuated vaccine.

The invention discloses a device for treating kitchen waste through hydrothermal carbonization. The device comprises a solid-liquid separation device, a mechanical crushing device, a hydrothermal carbonization system, a high-temperature drying device and a packaging and collecting device. The hydrothermal carbonization system is arranged at one side of the solid-liquid separation device; the mechanical crushing device is located between the solid-liquid separation device and the hydrothermal carbonization system; the packaging and collecting device is arranged at the other side of the hydrothermal carbonization system; the high-temperature drying device is located between the hydrothermal carbonization system and the packaging and collecting device; and the solid-liquid separation device,the mechanical crushing device, the hydrothermal carbonization system, the high-temperature drying device and the packaging and collecting device are sequentially connected. Filtered and compressed residues are converted into novel biomass fuel with high calorific value and low pollution through a hydrothermal carbonization technology, so that waste is turned into wealth to the greatest extent, traditional fuel is saved and supplied to a power plant for use, and cyclic utilization of resources is realized; and in addition, the technology is applied to engineering practice, and small movable efficient kitchen waste treatment equipment is developed.

The related pear tree virus hybridization detection reagent box comprises the pre-hybridizing liquid, the hybridizing liquid, the cleaning solution I/II, the buffer liquid I/II/III, the antigen liquid, the primer, and probe. This invention has well reliability, high sensitivity, and strong specificaity, needs only low cost and simple operation, and has wide application.

The present disclosure provides methods and compositions for genetically modifying lymphocytes, for example T cells and/or NK cells, in shorter times than previously and/or in whole blood or a component thereof. In some embodiments a lymphodepletion filter assembly is used before or after forming a reaction mixture where lymphocytes are contacted with recombinant retroviral particles in a closed system, to genetically modify the lymphocytes.