52results about How to "Speed up experimentation" patented technology

The invention discloses a nuclear magnetic resonance T2 cut-off value calculation method based on longitudinal wave constraint. The method mainly comprises procedures of core cutting, polishing, drying and other pretreatment, nuclear magnetic resonance T2 spectrum and longitudinal wave speed measuring at a core saturation state, nuclear magnetic resonance T2 spectrum measuring at a core centrifugation state, and nuclear magnetic resonance T2 cut-off value influence factor analysis and modeling. The established T2 cut-off value calculation method is only related to the longitudinal wave speed and nuclear magnetic resonance porosity, indeterminacy of calculation is lowered to the maximum extent, the problem of propagation of error in a traditional calculation method is effectively solved, great convenience is brought to application for engineering and technological researchers, the measuring cost is saved, and the experiment schedule is accelerated.

The mobile mixing cloud chamber capable of providing supercooled fog includes cloud chamber cavity with heat insulating layer, inside temperature sensing element and refrigerating system; inner cloud chamber barrel inside the cloud chamber cavity; sandwiched refrigerant layer between the inner barrel and the heat insulating layer, with liquid exhaust port in the bottom and for the evaporating tube of the refrigerating system, electric heater and temperature sensing element to be set inside; supercooled slot between the inner cloud chamber barrel and the sandwiched layer and with fog tube penetrating the bottom of the slot and the outer wall of the cloud chamber cavity; drainage pipe penetrating from the inner cloud chamber barrel and through the heat insulating layer and tee tube to outside the cloud chamber cavity; ice crystal receptor inside the inner cloud chamber barrel; and rotary handle.

The invention provides a separation and purification method of crocin-1. The separation and purification method comprises the steps as follows: mixing a plant material with an extraction solvent, performing ultrasonic extraction at 20-80 DEG C for 5-60 min, removing an alcohol solvent to obtain a crocin-1 crude extract, and then, purifying the crocin-1 crude extract by serial macroporous resin to obtain crocin-1, wherein the plant material is selected from crocus plants and/or gardenia plants; the extraction solvent is a mixture of water and the alcohol solvent.

The invention provides a light guide test device comprising a radioactive source box, a crystal holder, a photomultiplier tube box and a bottom plate which are connected sequentially from top to bottom. The radioactive source box comprises a radioactive source, a radioactive source box cover and a radioactive source box body. The crystal holder comprises a crystal holder body, a crystal holder cover, a crystal holder fixing plate, a crystal module and a to-be-detected light guide. The crystal holder body is fixed above the to-be-detected light guide through the crystal holder fixing plate. The to-be-detected light guide is fixed above the photomultiplier tube box through a plurality of spring clips. The photomultiplier tube box is fixed on the bottom plate. The photomultiplier tube box is internally equipped with a plurality of photomultiplier tubes. The photomultiplier tube box is externally equipped with a connector board which is provided with high-voltage power input ends and data output ends. The high-voltage power input ends are connected with the power input ends of the photomultiplier tubes. The signal output ends of the photomultiplier tubes are connected with a detector test platform through the data output ends.

The invention discloses a method of simultaneously performing enzyme-cut and link up co-system based on a CcdB lethal gene and a SmaI restriction enzyme cutting site. The method comprises the following steps of: inserting the ccdB gene between EcoRI and HindIII sites of a carrier pUC18 to obtain a pU18-ccdB plasmid; and then mixing the pU18-ccdB plasmid, a DNA fragment, a restriction enzyme SmaI, T4 ligase, T4 ligase buffer and water to form a reaction system for reaction so as to obtain a link product. By taking a common pUC18 carrier as a framework carrier, a quick, efficient and low background cloning method is constructed by combining a screening mechanism of the ccdB lethal gene and the SmaI restriction enzyme cutting site contained in the CcdB lethal gene without steps of performing double digestion on a ccdB recombinant carrier and a PCR product and recovering glue and the like, and the PCR product can be directly linked to a cloning carrier, so that the method is high in efficiency; and the whole time is controlled within 20 minutes, so that the experimental cost is greatly lowered, and the experimental progress is accelerated. The cloning system has very wide application prospects.

The invention provides an experimental device and method for magnetic slurry crack grouting and filling, the experimental device comprises a steel truss, a crack seepage visualization device to be experimented and a camera are carried on the steel truss, the crack seepage visualization device is connected with a bottom slurry outlet of a multifunctional pressure grouting tank through a grouting pipe, and the camera is connected with the multifunctional pressure grouting tank. The top of the multifunctional pressure grouting tank communicates with a pressure pipe, and the pressure pipe communicates with an air pump. Establishing a flow track and a filling area rule of magnetic grout under the action of different grouting pressures, and establishing a crack grout grouting radial diffusion model; slurry matching parameters are provided for different types of crack grouting repair projects, better filling of the interior of the crack is achieved, and the cost is reduced while the repair quality is guaranteed.

The invention discloses a circuit device for controlling an insect flight behavior based on electrical stimulation. The device is composed of three parts including an upper computer, a coordinator andan electronic backpack, wherein the upper computer is connected with the coordinator through a serial port, and the coordinator is connected with the electronic backpack in a wireless communication mode. The upper computer is implemented based on a Labview platform and sends a flight instruction to a lower computer through a serial port; the coordinator part mainly comprises a USB/serial port circuit, a first microprocessor and a ceramic antenna, and realizes connection between a wired network and a wireless network; and the electronic backpack is composed of an electric stimulator, a secondmicroprocessor, a ceramic antenna, an analog MEMS microphone, a nine-axis sensor and a micro battery, is small in size and light in weight, can be carried on the body of a beetle and is an executive device of the whole circuit. According to the circuit device, stimulation signal parameters can be changed in real time and insect flight information acquired by the lower computer is displayed at thesame time, and the design requirements of low cost, high reliability, low power consumption, multifunctionality and the like are met.

The invention discloses a large-liquid-amount constant-pressure displacement indoor physical simulation experiment method. The method sequentially includes the following steps that a large-liquid-amount constant-pressure displacement indoor physical simulation experiment device is installed and detected; water is added into a water container I, and dissolved gas is removed; water is added into a water container II, and dissolved gas is removed; oil saturation is performed on a rock core; oil displacement by water is performed on the rock core; oil and liquid obtained through displacement are counted. The experiment device comprises an automatic water adding device I, an automatic water adding device II, an oil adding device, an impurity removing device I, an impurity removing device II, a pressure collecting device, an oil and water counting device and a rock core clamping device. The automatic water adding devices comprise vacuum pumps, and water adding control buttons and displacement control buttons are further arranged. The experiment method is high in automation degree and operability, integrates multiple functions, can achieve water feeding automatically, meets the using requirement for large-liquid-amount displacement, can effectively remove impurities in the water and oil and meanwhile removes the dissolved gas in the water.

The invention belongs to the technical field of plant breeding for disease resistance and in particular relates to a method for identifying phytophythora infestans physiological race and application thereof. The method for identifying phytophythora infestans physiological race disclosed by the invention comprises the following steps: (a) setting a disease nursery field; (b) culturing a potato hostmaterial on a culture medium, and performing water culture to form water culture seedlings; (c) transplanting the water culture seedlings into the disease nursery field in the step (a); and (d) performing disease investigation on potatoes in the step (c), and recording the type of the phytophythora infestans physiological race. The experimental study is performed by selecting natural disease nursery, the advantages of scientificity, effectiveness and environment friendliness are taken into account, the requirement on professional skill is low in the whole experimental process, the operation is simple and feasible, the latter half part of the experiment is transferred into a large field for identification, the experimental effect is obvious, the experimental duration is shortened, and theexperimental accuracy is improved.

The invention discloses a variable-frequency-difference laser interference distance measuring device capable of adaptively adjusting a light path. The device can be decomposed into a light source system capable of providing two beams of light sources with variable frequency difference, an interferometer system for realizing heterodyne interference of the two beams of light, a measuring end translation system for simulating satellite micro displacement oscillation caused by gravitational wave or gravitational field change, a phase meter for performing phase discrimination on interference signals to invert displacement information, and a core self-adaptive optical path adjusting system capable of counteracting micro optical path offset caused by frequency difference change, wherein the required peripheral support equipment comprises a vibration isolation system, a vacuum system for reducing air interference and simulating a vacuum environment, a data acquisition and processing computer and the like. According to the invention, the variable-frequency-difference laser interference distance measuring device can highly simulate the situation of Doppler frequency shift change caused by the change of the relative movement speed of a real space double-star interferometer, greatly accelerates the experimental simulation progress, and can also be used in other types of application sceneswith constantly changing heterodyne interference frequency.

The invention provides a stripping material of an air-stable positive electrode active material for cylindrical lithium-ion batteries. According to the method, as alkali liquor reacts with aluminum foil to form hydrogen gas, the positive electrode active material and a current collector come off automatically, and influence from the external to the electrode during coming off is avoided completely. Further, since the lithium-insertion material air stability test is carried out in advance, the original property of the positive electrode active material is maintained completely under double guarantees; thus, the follow-up research on the property of materials is facilitated. Besides, the positive electrode which is coated with the active material on both sides is changed into the positive electrode which is coated with the active material on only one side within a short time, and accordingly the research progress on the positive electrode active material for assembled button cells is accelerated.

The invention discloses a medical experimental animal fixing device and a using method thereof. The medical experimental animal fixing device comprises a workbench, a moving assembly, a limb fixing assembly and a neck fixing assembly; the moving assembly is arranged on the outer wall of the bottom end of the workbench; the limb fixing assembly is arranged on the outer wall of the moving assembly;the neck fixing assembly is arranged on the outer wall of the top end, located on one side of the moving assembly, of the workbench; and moving grooves are distributed in the outer wall of the top endof the workbench in a penetrating mode. Supporting rods and sliding wheels are arranged, so that moving is relatively convenient, time and labor are saved and supporting is relatively stable; the arranged moving assembly can be suitable for fixing animals of different sizes; the arranged limb fixing assembly can fix limbs of an animal, so that fixing is relatively stable, and claws of the animalare effectively prevented from scratching people; and the arranged neck fixing assembly can fix the neck of the animal, prevent the animal from biting people, and protect experimenters, thereby carrying out adjustment at will and improving the experiment progress.

The invention discloses a solid phase extraction pressurizing device which comprises a sliding table. A piston is arranged in each pressurizing sleeve on a supporting seat on the sliding table, a pressurizing cavity is formed between each piston and a closed end of the corresponding pressurizing sleeve, the outer end of a piston rod on each piston is fixedly mounted on a mounting seat, a gas pipe is connected with the closed end of each pressurizing sleeve, one end of each gas pipe is communicated with the corresponding pressurizing cavity, the other end of each gas pipe is used for being communicated with a small solid phase extraction column, and each pressurizing sleeve on the supporting seat can be driven by a sliding driving mechanism on the mounting seat to move back and forth on the outsides of the corresponding piston and the corresponding piston rod, so that the volume of the pressurizing cavity in each pressurizing sleeve can be driven to be gradually reduced or gradually increased, and gas in each pressurizing cavity can be squeezed into the corresponding small solid phase extraction column when the volume of the pressurizing cavity is gradually reduced. The solid phase extraction pressurizing device has the advantages that the solid phase extraction pressurizing device is convenient to use, the experiment speeds can be increased, and the experiment accuracy can be improved.

The application relates to the field of friction experiments, and in particular to a friction experiment device, a bearing mechanism and a loading mechanism thereof, and a friction experiment method.The friction experiment device comprises the loading mechanism and the bearing mechanism, wherein the loading mechanism has an L-shaped positive pressure loading surface and a tangential force loadingsurface, the bearing mechanism has an L-shaped positive pressure bearing surface and a tangential force bearing surface, the loading mechanism can load two forces through two loading surfaces at thesame time, the bearing mechanism can carry two forces from the loading mechanism, and elastic cushion layers with the same elastic modulus are respectively provided on the two bearing surfaces so thatthe direction of the loading force is consistent with the overall displacement direction of the test piece to ensure stable loading and achieve sliding friction. The friction experiment method is performed using this experiment device. The application has the beneficial effects of facilitating the simultaneous application of a positive pressure and a tangential force to the test piece through a loading mechanism during a friction experiment, saving the cost of experiment equipment and improving the convenience of the experiment.

The invention provides a tartary buckwheat seed germination drought-resisting stress device and a stress method thereof. The tartary buckwheat seed germination drought-resisting stress device comprises a main box, a cover plate and a bottom box. The main box is internally provided with multiple hollow cubes, and the bottom of each hollow cube is provided with a small hole. The small hole is provided with filter paper. The cover plate is installed on the main box. The main box is installed on the bottom box. The bottom box is internally provided with water. The tartary buckwheat seed germination drought-resisting stress device is capable of enabling tartary buckwheat seeds to complete two states of the germination and the drought-resisting stress treatment in one device, the device is simple in structure, and has the remarkable preventive effect to weak seedlings of the tartary buckwheat. In a germination aspect, suitable amount of water can be provided to the tartary buckwheat for thegermination and the growth, and the emergence of seedlings is tidy; and in a drought-resisting stress aspect, the secondary injure to the seedlings can be reduced in a device movement process, the change of the solution concentration caused by the water desorption is avoided, a lot of samples can be produced in the same box and the repeatability and the accuracy of the samples are guaranteed. Thewhole method is short in used time, high in efficiency, accurate in result, and low in cost.

The invention relates to an assembling type casting-used target device. The detachable assembling type casting-used target device replaces a fixed and undetachable target device, so that in a casting experiment, only damaged parts need to be replaced, and undamaged parts can be repeatedly used. The assembling type casting-used target device is characterized in that the device comprises a target frame, a first sliding bar, a second sliding bar and target cards, the target cards in different sizes can be accommodated by the target device by adjusting the distance between the two parallel sliding bars, a damaged target card can be detached from the sliding bars to be replaced with a new target card, and the sliding bars and the target frame can be repeatedly used. According to the assembling type casting-used target device, labor and material resources are saved, and casting experiment speed is also increased.

An automatic weighting adjustment device for a melt index meter, comprising an index meter piston rod body (1), the rod body (1) is connected to a weighted part through a bracket structure (2) and includes a display device (3), a pressure chamber (4), two An air pressure regulator (5), an air pressure sensing module (6), a control panel (7) located on the upper surface of the cavity, and an input device (8), a code-to-digital converter (9), and a peeling device (10) are arranged inside. When connected with the piston rod, the load operation is carried out by regularly adjusting the internal air pressure state according to the test requirements, and the display device (3) is used to display the weight level; the prompt device (11) is set, and when the added weight reaches the set weight level, a corresponding alarm will be issued. Prompt information; the structure design is simple, and the conversion of the weight level is realized by adjusting the air pressure. The adjustment is convenient and can effectively speed up the progress of the experiment. At the same time, the operation is simple, the weight is uniform, and it is economical and practical.