57results about How to "Speed up experiments" patented technology

The invention provides an integrated flow path chip device used for digital nucleic acid amplification. The device is composed of a vacuum system, a pipeline, a sucker, a sealing cover layer and a reaction layer, wherein two ends of the sealing cover layer are respectively provided with a sample inlet and a sample outlet; a path is formed between the sealing cover layer and the reaction layer; the reaction layer is provided with small reaction chambers; the sucker is arranged on the sample outlet; the vacuum system is connected with the sucker via a pipeline; and the sample inlet and the sample outlet are sealed by adhesive tape paper. According to the integrated flow path chip device, trace reaction samples can be distributed to thousands of small reaction chambers, and mineral oil is led in via a path in the sealing cover layer to separate thousands of small reaction chambers so as to realize the single molecule amplification and precisely quantify the nucleic acid molecules. The device is reasonable to design and is a minitype device used for digital nucleic acid amplification, which has low cost and is easy to operate.

The present invention provides a power source-free and valve-free type single molecule detection chip, which comprises a reaction layer, a modification layer, a sealing layer, a main channel, small reaction chambers, a sample inlet, a sample outlet and a heat resistant adhesive tape, wherein the reaction layer is formed by connecting the main channel and the reaction small chambers in series, the reaction small chambers are positioned above or below the main channel, the sample inlet and the sample outlet are positioned on both ends of the main channel, the modification layer is pre-connected with the sealing layer, the reaction layer is sealed with the sealing layer through the modification layer to form a microfluidic chip assembly, and the heat resistant adhesive tape is adhered on the upper surface of the reaction layer. According to the present invention, miniaturization is achieved, such that consumption of reagents and samples are reduced, and cost is low; a small amount of liquid can be assigned to hundreds of the independent small chambers without an external connection drive system and valve switching control equipment so as to reduce complexity of chip production and use; and the operation is simple, other control devices are not required, application cost is low, and the chip can be used in real-time fluorescence quantitative polymerase chain reactions and digital nucleic acid amplification.

The invention provides an integrated fluidic chip device for digital nucleic acid amplification. The device consists of a vacuum system, a front pipeline, a buffer bottle, a rear pipeline, a capillary tube, a sucking disc, a sealing layer and a passage layer, wherein the passage layer and the sealing layer are sealed to form an integrated fluidic chip assembly; the passage layer is engraved with a passage and provided with a sample outlet and a sample inlet; the passage consists of a sinuous main passage and a plurality of side chambers positioned on two sides of the main passage; the two tail ends of the main passage are connected with the sample outlet and the sample inlet respectively; one end of the front pipeline is connected with the vacuum system, while the other end is connected with the buffer bottle; one end of the rear pipeline is connected with the buffer bottle, while the other end is connected with the capillary tube; and the capillary tube passes through the sucking disc and is communicated with the integrated fluidic chip assembly. The device has the advantages of reasonable design, microminiaturization, portability and simple operation, can distribute micro fluid into thousands of independent small chambers in dozens of seconds, reduce the complexity of chip manufacture and use and improve experiment speed, and can be applied in digital nucleic acid amplification.

The invention provides a flow distribution server. The flow distribution server comprises an interface subsystem and an experiment portal subsystem. An experiment zone of the experiment portal subsystem is layered through unified interfaces provided by the interface subsystem to acquire at least one layer, the various layers sequentially share the flow and correspond to different experiments, for each layer, the flow is divided to acquire at least one sub flow, for each layer, flow distribution is carried out according to percentages of the various sub flows to the total flow, experiment flow sharing of different layers is realized, flow division is carried out according to different experiments of one same layer, multiple parallel experiments are realized, and an experiment speed is accelerated.

The invention provides a high throughput method for rapidly extracting genomic DNA of a fungus. According to the method, a fungal bacterium block or a mycelium undergoes a simple physical grinding process and is subjected to impurity removal by an improved CTAB solution to obtain the purified DNA. The method of the invention mainly has the following beneficial effects: 1, a complex process that aspecial agent liquid nitrogen must be used to grind in present methods is avoided; 2, the usage of toxic carcinogenic regents of phenol and the like in the present methods is avoided; 3, the usage ofa toxic odorous chemical reagent beta-mercaptoethanol is avoided; and 4, the method of the invention only needs 1h, the extraction time is shortened by 2h, the experiment speed is greatly accelerated, and the high throughput rapid extraction can be realized. The method of the invention is also suitable for the rapid extraction of the genomic DNA of other various fungi.

The invention discloses a probe-based automatic airflow pressure and velocity measurement device which comprises a probe, a probe rotating motion adjusting mechanism, a probe linear motion adjusting mechanism, a mounting support mechanism and a data acquisition and control system. The device is characterized in that one end of the probe is arranged in the hollow shaft of a hollow motor and fixed by virtue of a positioning / locking device, the other measuring end of the probe passes through a sealing device and then extends to a moving fluid in a measured object, and the sealing device is fixed in the through hole of a vertical bracket body of a movable platform bracket; the probe rotating motion adjusting mechanism is arranged on the movable platform by virtue of a hollow motor bracket; the probe linear motion adjusting mechanism is integrally arranged on a horizontal bracket body of the movable platform bracket; the data acquisition and control system is connected with the probe by virtue of a data acquisition terminal C so as to realize data acquisition; and the data acquisition and control system is connected with the hollow motor by virtue of a first wire connecting terminal D so as to realize rotating motion control, and connected with the linear motion motor by virtue of a second wire connecting terminal E so as to realize linear motion control.

The invention provides a displacement experiment fluid control method and a displacement experiment device. The displacement experiment fluid control method comprises the steps that saturated fluid is poured into an inner model hole channel through an inlet connecting pipe communicated with an inner model of the displacement experiment device until the saturated fluid step is finished, the displacement fluid is directly poured into the inner model hole channel through a pipeline directly communicated with the inner model to achieve the displacement step. The displacement experiment device comprises an outer model and the inner model arranged in the outer model. One end of the inner model hole channel is connected with the inlet connecting pipe which is connected with a saturated fluid conveying device, a fluid switch is arranged on the portion, close to the inlet connecting pipe, of the inner model hole channel, and a control device capable of controlling the fluid switch to be opened and closed is arranged outside the outer model. According to the displacement experiment fluid control method and the displacement experiment device, the displacement fluid can be directly conveyed to the inner model hole channel through the pouring pipeline, the displacement experiment speed is improved, and the experiment precision is improved. The displacement experiment fluid control method and the experiment device are particularly suitable for microcosmic displacement experiments.

The invention discloses a two-dimensional analog simulation experiment device used for simulating big excavation space. The device comprises a supporting system, a lifting system and a self-moving guide track system, wherein a protecting plate is connected with a base through stop levers, front and rear support plates are fixedly connected with the protecting plate through nuts, and resistance strain gages in different directions are attached to the front and rear support plates and connected with wires; one end of each support top rod is connected with one of the front and rear support plates, the other ends of the support top rods are connected with drive gears, two ends of each drive rod are connected with one drive gear and one brake gear respectively, the brake gears are connected with cranking handles, the cranking handles are fixed on external buckles, two ends of the base and slide tracks are connected through clamping port type sliders, two ends of each slide track are connected with the external buckles, and the external buckles are connected with vertical walls of two ends of an experiment table through fastening parts. The controllability, the fineness and the experiment standardability in the experiment process are improved, the experiment time is shortened, the experiment operators are reduced, and the cost is saved.

The invention discloses a wheat germ stripping device for a laboratory and belongs to the technical field of laboratory auxiliary equipment. The wheat germ stripping device comprises a multistage coregrinding mechanism, a spiral feeder, a winnowing mechanism, a separation mechanism and a screening mechanism, wherein the multistage core grinding mechanism comprises a multistage core grinding component, an adjusting component and a discharge component, the adjusting component and the discharge component are respectively arranged at the upper end and the lower end of the multistage core grindingcomponent, the spiral feeder is vertically arranged beside the multistage core grinding mechanism and communicated with the discharge component, the winnowing mechanism is arranged beside the upper portion of the spiral feeder, the separation mechanism is arranged at the lower end of the winnowing mechanism, the screening mechanism comprises a rolling component and a screening component, the rolling component is arranged at the lower end of the separation mechanism, and the screening component is arranged below the rolling component. The wheat germ stripping device suitable for the laboratoryis capable of simplifying processing steps and reducing device size, capable of increasing wheat germ stripping and collecting rate and capable of avoiding wheat waste.

The invention discloses a fish body surface structure-based deformation wall surface resistance test device. The fish body surface structure-based deformation wall surface resistance test device comprises a fluctuation wall surface vibration telescopic mechanism, a water circulation mechanism and a pressure difference resistance test mechanism, wherein the water circulation mechanism comprises a water pump and a circulation pipeline, a water outlet of the water pump is connected with a water inlet of the water pump by the circulation pipeline to form a water flow circulation loop, the fluctuation wall surface vibration telescopic mechanism comprises a motor transmission device, a deformable flexible wall surface and a plurality of telescopic support rods, the plurality of telescopic support rods are uniformly fixed at the bottom of the deformable flexible wall surface at intervals, the telescopic support rods are all arranged on the same plane, an upper end of each telescopic support rod can be used for connecting and fixing the bottom of the deformable flexible wall surface, and the deformable flexible wall surface is arranged in the circulation pipeline. The device is simple in structure, and a water flow field condition is provided for the device mainly through power of the pump by the water circulation mechanism; and with the design of the circulation pipeline, the energy consumption can be effectively reduced, and an experiment water flow field with an enough flowing speed is provided, and the occupancy space of the device also can be reduced.

The invention discloses a ship hydrostatic force performance experimental device which comprises a water tank and a ship body model placed in the water tank. A transverse inclination torque measuring device is arranged on the side, close to a stem, of the water tank; the ship body model comprises a ballasting system for guaranteeing that the ship body model does not incline, and a weight system for simulating loads on a ship, and the weight system comprises a stem weight, a midship weight and a stern weight which are located on the longitudinal axis face of the ship body model. An adjustable weight perpendicular to the longitudinal axis face is arranged in the middle of the ship body model, and the left side and the right side of the ship body model are both provided with at least one deck weight. According to the experimental device, the all true ship body model is erected, the hydrostatic force characteristics including buoyancy, stability, unsinkability, fastness, seaworthiness and operability in water are simulated, and operation is easy; a reinforced glass fiber plastic shell and metal upper layer equipment are adopted in the ship body model, so that the manufacturing price is low.

The invention discloses an experimental device for a distribution line overvoltage protector. The experimental device comprises a bottom disc, wherein a box body is sleeved in the bottom disc, the lower end of the box body is provided with a sliding plate, the left and right sides of the upper part of the bottom disc are provided with anti-dropping plates, a buffer spring is arranged between the sliding plate and each of the two anti-dropping plates, a first terminal is arranged at the left side of the upper end of the box body, a second terminal is arranged at the right end of the first terminal on the upper end of the box body, a third terminal is arranged at the right end of the second terminal on the upper end of the box body, and a fourth terminal is arranged at the right side of theupper end of the box body. During operation, a screw rod rotates in a vertical plate and drives a cylinder to move leftwards and rightwards, and a contact at the lower end of a connecting rod can be in contact with the plurality of terminals in sequence, thereby accelerating the speed of the experiment and improving the efficiency of the experiment. A travelling wheel slides in a top slot, the contact moves more steadily, and the screw rod can save manual contact with the contact, thereby avoiding a safety accident caused by electric leakage, and improving the usage safety of equipment.

The invention discloses a multi-target microarray chip full-automatic hybrid cleaning dyeing system comprising a multi-target microarray chip card box and a full-automatic hybrid cleaning dyeing system. The automatic hybrid cleaning dyeing system comprises a sample and reagent processing module, an incubation reaction module and a fluid control module. The disposable visual multi-target microarray chip card box adopts a fixed closed system, so that the risk of pollution is reduced, results are convenient to read, and fluid operation is convenient in a process that an instrument automatically performs a reaction; and the full-automatic hybrid cleaning dyeing system accelerates the experimental speed, and improves repeatability and consistency of experimental results.

The invention relates to a medicament bottle easy for stirring. The medicament bottle easy for stirring comprises a bottleneck, a bottle body and a bottle bottom. In the bottle body, an elastic sealing film clings to the bottle bottom, a fixing sucker with the sucking face downward is arranged at the bottle bottom, the root of the fixing sucker penetrates the bottle body and is connected to the sealing film rotatably, stirring rods are fixedly arranged on the upper surface of the sucking face of the fixing sucker rotatably and symmetrically, connected with the fixing sucker through supporting of connecting rods and arranged between the bottle bottom and the sealing film, and the connecting rods penetrate the bottle bottom and move with the fixing sucker synchronously. The medicament bottle easy for stirring is novel and unique in structure, capable of improving stirring efficiency effectively, safe and stable to use and convenient to clean.

The invention provides a boiling point and pressure intensity experimental teaching aid for high school physics teaching. The experimental teaching aid includes fixing rods and a base. The lower endsof the four fixing rods are installed on the upper surface of the base. First fixing blocks are respectively arranged outside the upper ends of two fixing rods. Each first fixing block and a corresponding first fixing plate are welded together. Each first fixing plate is provided with fixing slots. Pressure gauges, thermometers and air guide tubes are fixed to the fixing slots. The thermometers are fixed inside flasks through sealing connectors. Each flask is installed on the upper surface of an asbestos wire gauze. Each asbestos wire gauze is embedded onto the middle of a second fixing plate.Each second fixing block and a second connecting block are welded together. A fixing shaft is installed inside each second connecting block. A rotating block is installed on each fixing shaft througha bearing. An alcohol lamp holder is arranged right under each rotating shaft. The boiling point and pressure intensity experimental teaching aid is simple in structure and easy to use. As the wholedevice is provided with four fixing rods, different experiments can be carried out. Therefore, the universality of the device is improved.

The invention provides a concrete die aiming at single-face salt freezing experimental development, comprising a standard die with specification of 150*150*150mm<3>, a middle clapboard, a bottom support and a connecting rod, wherein the middle clapboard, the bottom support and the connecting rod are all made from organic glass material. The concrete die can quickly, economically and quickly perform making and dismounting of a test piece, and can perform filling of two mixing ratios, and die stripping is relatively convenient and quick, thus providing relatively convenient and economical test conditions for research on the durability of concrete.

The invention relates to a tool for detecting the vision of an experimental animal, wherein a vision tester barrate is in a drum shape, the inner wall of the vision tester barrate is provided with bargrating sighting marks uniformly spaced along a circumferential wall, and the vision tester barrate is placed on a base; a motor is arranged below the vision tester barrate and controls the axial clockwise / anticlockwise rotation of the vision tester barrate; an illuminating light source is positioned right above the center of the vision tester barrate and is fixed on a fixing frame; the fixing frame is placed at one side of the vision tester barrate, a CCD and a computer are both placed at the other side of the vision tester barrate, and the CCD is connected with the computer through a data wire. The stepping type motor drives the vision tester barrate, the motion of the bar grating sighting marks positioned on the inner wall of the vision tester barrate leads to the regular and stable optokinetic response of the experimental animal, special software synchronously records response tracks, then corresponding analysis software analyzes data, and experimental operation and data analysisare realized in two steps, thus experimental time is shortened.

The invention discloses a millikan oil drop experiment instrument capable of generating tiny charged oil drops by utilizing compressed air flow and an experiment method. For the experiment instrument, an air compressor is adopted for generating compressed air flow, and the air flow is sprayed at high speed from an air pipe and enters an atomizing cup, so that oil liquid in the atomizing cup oscillates in the boiling state and is atomized into tiny charged oil drops. The oil drops enter an oil drop box, and are observed after amplification and shooting by a microscopic vidicon, by measuring the static balance voltage and uniform-velocity falling speed of the oil drops, the carried charge amount of the oil drops can be obtained through calculation. For the experiment instrument, the large number of tiny charged oil drops can be rapidly generated for experiment measurement, the millikan oil drop experiment instrument has the advantages that the experiment speed is improved, the consumable items are saved, the residue is reduced, the cleaning is convenient, etc., and the millikan oil drop experiment instrument is particularly suitable for physics experiment teaching needing multi-user repeated use.

The invention discloses a novel experiment table. The problems are effectively solved that according to existing experiment tables, use is inconvenient during chemical experiments, delays are caused to the experiments, the effect and accuracy of the experiments are affected and the like. The novel experiment table comprises a panel, table legs are fixed to the lower side of the panel, a test tube frame is fixed to the panel and comprises a frame body, a control box located under a partition board is arranged in the frame body, rotating shafts which can horizontally slide are connected with the interior of the control box in a rotating mode, and special-shaped blocks are arranged on the outer peripheries of the rotating shafts, and each special-shaped block comprises a first bulge, a first smooth portion, a first groove, a second smooth portion, a second bulge, a second groove and a third smooth portion which are arranged at intervals in sequence. The structure is novel, the design is ingenious, through rotating of the rotating shafts, the height of the bottom in the test tube frame on the experiment table is controlled, so that the heights and positions of the upper ends of test tubes are different, and thus taking and placing of the test tubes are convenient.

The invention relates to an experiment animal grasping and fixing and administration device. The whole device is conical and comprises a conical shell, an upper narrow opening, an upper fixing strip, holes, a bottom cover, a subcutaneous injection port and a lower fixing strip. The upper fixing strip and the lower fixing strip are arranged on the upper portion and the lower portion of the conical shell respectively, the holes are formed in the conical shell, and the bottom cover is arranged at the lower end of the conical shell. The subcutaneous injection port is formed in the position, above the upper fixing strip, on the back side of the conical shell, and the portion from the lower portion of the subcutaneous injection port to the bottom of the conical shell is of a louver structure which can be folded to fix a mouse, and operation like subcutaneous injection is facilitated. The device is used for fixing, grasping and administration of experiment animals, especially mice, during pharmacology experiments.

The invention provides a loop accelerated loading testing system, which comprises a loading vehicle and an annular testing loop, wherein the loading vehicle comprises an upper vehicle frame, a lower vehicle frame, a guide column, a guide sleeve, a transverse movement lead screw, a driving wheel and a power mechanism; the guide column and the transverse movement lead screw which are parallel mutually are horizontally arranged at the bottom part of the upper vehicle frame; the guide sleeve is arranged on the guide column; the lower vehicle frame is arranged on the guide sleeve; a lead screw nut, the driving wheel and the power mechanism are arranged on the lower vehicle frame; the front end and the rear end of the upper vehicle frame are provided with the guide wheels, balancing wheels and side supporting wheels respectively; a third rail collector is also arranged on the upper vehicle frame; the annular testing loop comprises an annular vertical wall, crossbeams, a third rail and an annular guide rail; the inner side of the annular vertical wall is uniformly provided with a plurality of crossbeams; and the annular guide rail is arranged below the crossbeams. A driving and driven dual-wheel group rolling mode can be realized, which is consistent with the actual road rolling condition by a vehicle; by adopting the third rail mobile power supply mode, the testing speed and the testing effects are improved; and by adopting the scheme with the annular guide wheel and the guide wheels, the structure is simple, the reliability is high, and the power consumption is low.

The invention relates to an ultrasonic continuous extraction device, which includes a sample bottle, a solvent bottle, heating sleeves, an ultrasonic extraction apparatus and condenser pipes. The sample bottle and the solvent bottle are respectively provided with a heating sleeve at the bottom. An ultrasonic probe of the ultrasonic extraction apparatus is sealed in the sample bottle. The two condenser pipes are horizontally communicated with the sample bottle and the solvent bottle inbetween. One of the condenser pipes is an extract liquid extraction pipe, is hermetically connected to the lower part of the sample bottle and the solvent bottle, and is downward inclined from the sample bottle to the solvent bottle, and the joint is provided with a filtration sand core connector. The other condenser pipe is a solvent vapor return pipe, is hermetically connected to the upper part of the sample bottle and the solvent bottle, and is downward inclined from the solvent bottle to the same bottle. The ultrasonic continuous extraction device provided by the invention can selectively and rapidly realize separation of group components in coal, and has the advantages of mild operation condition, simple operation, continuous extraction, high extraction efficiency, cycle use of solvent, no noise, no waste residue or wastewater discharge, and little exhaust emission.

The invention provides an experimental device capable of quickly comparing chemical experiments. The experimental device comprises a test tube stand, an anti-corrosion under frame, a white board, a base and an isolation board, wherein the test tube stand is fixedly arranged in the middle position of the left side of the isolation board; the anti-corrosion under frame is embedded and arranged at the top part of the left side of the base; the anti-corrosion under frame is connected with the bottom part of the left side of the isolation board by using a wood tenon structure, and a connecting partis covered and protected by carpentry paint; the white board is fixedly arranged at the top part of the right side of the base; the white board clings to the right side end of the isolation board; the end surface of the back part of the white board and the end surface of the back part of the base are located in the same horizontal plane. Through the arrangement of the anti-corrosion under frame and an information sign, an experimental sample can be marked by an experimenter by utilizing the information sign, and convenience is provided for the experimenter to identity and record, and meanwhile, the anti-corrosion under frame is capable of preventing a content in a test tube from corroding the surface of a table when the experimenter is in misoperation; the experimental device is suitablefor production and use in the technical field of teaching aids, and has a good development prospect.

The invention discloses an inclined digestion tank heating backflow device, which comprises a heating device casing, a heating block, heat transfer components, a cooling region and temperature sensing components, wherein the heating block is filled in the inner wall of the heating device casings; a plurality of digestion tank grooves used for accommodating digestion tanks are formed in the heating block; each digestion tank groove is in inclined arrangement; a heat transfer component and a temperature sensing component are arranged in each digestion tank. The inclined digestion tank heating backflow device has the advantages that the acid liquid condensing backflow can be realized in the heating process; the surface area of the liquid in the digestion tank is increased; the acid liquid evaporation is accelerated; the acid catching experiment speed is accelerated.

The invention discloses a wheat germ stripping device for a laboratory and belongs to the technical field of laboratory auxiliary equipment. The wheat germ stripping device comprises a multistage coregrinding mechanism, a spiral feeder, a winnowing mechanism, a separation mechanism and a screening mechanism, wherein the multistage core grinding mechanism comprises a multistage core grinding component, an adjusting component and a discharge component, the adjusting component and the discharge component are respectively arranged at the upper end and the lower end of the multistage core grindingcomponent, the spiral feeder is vertically arranged beside the multistage core grinding mechanism and communicated with the discharge component, the winnowing mechanism is arranged beside the upper portion of the spiral feeder, the separation mechanism is arranged at the lower end of the winnowing mechanism, the screening mechanism comprises a rolling component and a screening component, the rolling component is arranged at the lower end of the separation mechanism, and the screening component is arranged below the rolling component. The wheat germ stripping device suitable for the laboratoryis capable of simplifying processing steps and reducing device size, capable of increasing wheat germ stripping and collecting rate and capable of avoiding wheat waste.

The invention discloses a metal surface doping catalysis-based simulation device. The device comprises a simulation box; supporting connecting rods are distributed on the simulation box; one end of each supporting connecting rod is connected with a limiting seat; a measuring cylinder is arranged on the limiting seat; a cylinder cover is arranged at the upper end of the measuring cylinder; an arc-shaped handle is arranged at the middle end of the upper surface of the cylinder cover; the arc-shaped handle is connected with a hanging ring through a connecting rope, wherein the hanging ring is arranged on the outer surface of the upper end of the measuring cylinder; and a shielding mechanism is arranged at the lower end of the measuring cylinder. According to the metal surface doping catalysis-based simulation device, the speed of an experiment and a simulation process can be accelerated; the measuring cylinder is stable in installation and convenient to detach; the size of an article contained in the measuring cylinder can be clearly known, and therefore, the measuring result of the metal surface doping catalysis-based simulation device is accurate, and the result of a simulation experiment is more accurate and reliable; the cylinder cover is connected through the connecting rope, and therefore, a situation that the cylinder cover cannot be found in the later period due to the fact that the cylinder cover is arranged randomly is avoided.