31results about How to "Easy to observe and measure" patented technology

The invention discloses a liquid medium for vitro scutellaria root pollen germination and a method for testing the activity of scutellaria root pollen. For the liquid medium for vitro scutellaria root germination, distilled water is used as a solvent, and the liquid medium comprises the components of BK, 100g / L cane sugar and 150g / L PEG4,000, the pH value of the liquid medium is 5.8. The tested results of pollen activity is stable and reliable by utilizing the liquid medium for vitro scutellaria root pollen germination and a pollen tube growth testing technology, the ratio of the pollen germination reflects the proportion of pollens with vitality, and the observation and the measurement of the pollen tube reflect the advantages and disadvantages of physiologic conditions of pollen grains, thus the technology for testing vitro scutellaria root pollen germination and pollen tube growth provides a reliable and effective method for the measurement of the activity of the scutellaria root pollen germination.

The invention discloses an in-vitro pollen germination liquid medium of balloon flower (platycodon grandiflorum (Jacq.) A. DC) and a method using same to determine the pollen viability thereof, particularly a method for reliably and effectively determining the pollen viability of the balloon flower through the in-vitro pollen culture of the balloon flower after the in-vitro pollen germination culture system is determined. The in-vitro pollen germination liquid medium is characterized by using distilled water as the solvent with the pH value being 5.8, wherein, the distilled water comprises the following components: ME3, BK, 100g / L sucrose and 150g / L PEG (polyethylene glycol). The method comprises the following steps: evenly scattering the pollen over the in-vitro pollen germination liquid medium, and culturing at a constant temperature (30 DEG C) under the lighting condition; in-vitro culturing for 1.5h and determining the pollen germination rate and the pollen tube lengths which reflect the pollen viability, particularly, counting the pollen germination rate by the pollen germination standard that the pollen tube length is larger than the pollen particle diameter, and measuring and averaging the pollen tube lengths, wherein, the pollen germination rate reflects the proportion of the viable pollen, and the growth condition of the pollen tube of the in-vitro cultured pollen reflects the physiological condition of the pollen particles.

The invention discloses a high-definition fluorescence color band level gauge, belonging to a liquid level measuring instrumentation, which comprises a section bar plate, wherein protective glass, a scale staff gauge and a rear cover plate are arranged on the section bar plate, a counterweight pulley is arranged in the internal cavity of the section bar plate, a stainless steel wire rope is tied on the upper portion of the counterweight pulley, two end portions of a middle baffle of the section bar plate are respectively provided with a driving wheel, two ends of the counterweight pulley are fixedly connected with a red-white fluorescence color band which encloses the two driving wheels. The invention has the advantages that the invention not only has the characteristics of simple structure, reliable usage and wide application and spread, but also realizes the consistency of level height change directionality and the trend of scale reading change, thereby overcoming the weakness of false reading, and the display of the fluorescence color band makes the scale staff gauge present extremely high definition, thereby greatly facilitating observers, and the operation process of the color band has no folds, adhesion and color fade, and has corrosion resistance and long service life.

The invention relates to a blood-culture carbon dioxide trace-gas detection system and a detection method thereof. The blood-culture carbon dioxide trace-gas detection system is characterized by comprising a detection device and an image collection device, wherein the detection device comprises a reaction bottle, the opening of the reaction bottle is provided with a seal cover, the seal cover is provided with a capillary glass tube insertion hole, one end of a capillary glass tube is inserted into the reaction bottle through the capillary glass tube insertion hole, and color liquid is contained in the capillary glass tube and forms a liquid column in the capillary glass tube; the image collection device aims at photographing the color liquid in the capillary glass tube, and a picture taken by the image collection device is transmitted to a computer to be processed. The blood-culture carbon dioxide trace-gas detection system has the beneficial effects that the micro increment of gas is changed to the obvious displacement of liquid, so that observation and measurement are easy; the stationary image collection device is used for taking picture, and after the picture is subjected to computer image processing, the distance is measured, so that the movement distance of the liquid column before and after the reaction can be measured; moreover, the blood-culture carbon dioxide trace-gas detection system is simple in structure, convenient to operate, low in cost, high in precision and wide in application range.

The invention discloses a portable spectrophotometer, which comprises a body, wherein telescopic support legs are arranged on the bottom part of the body; auxiliary frames are arranged on side faces of the telescopic support legs; a base plate is arranged on the top parts of the telescopic support legs; a plurality of groups of shock absorption mechanisms are arranged on the top part of the base plate; a detection tank is arranged above an auxiliary plate; a lifting handle is arranged in the center of the top part of the detection tank; a display is arranged on the top part of the detection tank; a movably connected strap is arranged on side faces of the detection tank; a light source chamber is arranged on one side of the inner part of the detection tank; a heat insulation layer is arranged on the outer side of the light source chamber; a liquid inlet pipe, a return pipe and a liquid storage tank are arranged on the bottom part of the heat insulation layer; a cuvette chamber is arranged on the other side in the detection tank; a fixing frame is arranged on the bottom part of the cuvette chamber; an installation slot is formed in the fixing frame; a sample placement frame is arranged in the fixing frame in a matching way; an installation piece matched with the installation slot is arranged on the bottom part of the sample placement frame; an operation rod is arranged on one endof the sample placement frame. The device has the advantages of simple structure, convenience and rapidness in use, excellent balance capacity, good temperature control effect and long service life.

The invention relates to a long-chain alkyltrimethyl ammonium sensitizing mixed reagent paper for measuring ammonia in air and preparation method thereof, belongs to the field of rapid environmental detection and industrial hygiene. The test paper is loaded with bromocresol purple sodium salt, bromothymol blue sodium salt, and surfactant long-chain alkyl trimethyl ammonium on the base paper according to the mass ratio, bromocresol purple sodium salt: bromo thymol blue sodium salt: surfactant long-chain alkyl trimethyl ammonium = (4~8): (6~10): (0.02~0.2). The preparation method comprises the following steps of: preparing the soaking solution according to the load reagent; soaking the base paper; drying and encapsulating. The test paper is made to change from the yellow to blue-violet basedon the reaction between ammonia gas in combination with bromocresol purple sodium salt and bromothymol blue sodium salt. The color change is obvious, the color of the test paper reaction is clear, itis easy to observe and measure, and the precision is high. The long-chain alkyltrimethyl ammonium makes the bromocresol purple sodium salt and the bromothymol blue sodium salt disperse better, and makes its uniformity on the filter paper better, thus the length of the test paper discoloration band is increased, and the sensitivity is increased.

The invention discloses a network digital parallel direct-reading roof separation instrument. The network digital parallel direct-reading roof separation instrument comprises sensor nodes and a wireless base station. Each sensor node is composed of a base point anchor head, measuring ropes, a vertical measuring tube, a segmented capacitance-type displacement sensor, a left measuring tube monitor, a right measuring tube monitor and a processor. A networking protocol is the ZigBee protocol, a network structure is a self-organizing and self-healing overlay tree structure, a tree structure is adopted for the whole network structure, and the sensor nodes are in communication with the closely-adjacent sensor nodes only; a grid structure is adopted for part of the network structure, the sensor nodes are in communication with the secondarily-adjacent sensor nodes only, and the communication distance between the sensor nodes is smaller than 100m. According to the network digital parallel direct-reading roof separation instrument, network digital parallel direct-reading monitoring on roof separation of an underground roadway of a mine through a wireless sensor network is achieved, observation and measurement are convenient to carry out, automatic monitoring and real-time data transmission are achieved, and safety management levels are improved.

The invention discloses a multilayer metal soaking thermostatic bath which comprises an outer-layer primary thermostatic tube, a middle heating temperature control layer and an inner-layer metal soaking hollow block; the distance between the every two of the outer-layer primary thermostatic tube, the middle heating temperature control layer and the inner-layer metal soaking hollow block is 10 mm, and the outer-layer primary thermostatic tube, the middle heating temperature control layer and the inner-layer metal soaking hollow block are separated by heat-insulation foot pads. The multilayer metal soaking thermostatic bath disclosed by the invention has the benefits that the performance is reliable, a uniform and stable temperature field can be achieved, the more satisfactory temperature fluctuation can be provided under the condition of obtaining the longer stable time, the observation and the measurement are convenient, and the multilayer metal soaking thermostatic bath is suitable for being used in the test needing to consume longer time.

A device for measuring organic matters entrained in water phase in solvent extraction process comprises a closed container, a feeding column is arranged in the container, the a feeding column is perpendicular to the bottom of the container, the center of the top of the container is provided with a capillary, the capillary is connected with the internal part of the container, and a scale is arranged on the side wall of the capillary. The invention also provides a method for measuring the organic matters entrained in the water phase in the solvent extraction process, the method is as follows: to-be-measured water phase is injected into the container to the marked scale, the container is put into a centrifuge for centrifugal separation, an organic liquid column is formed in the capillary, the organic phase height is directly read in accordance with directed scale on the capillary, the organic phase height in the capillary is converted into volume, the volume is divided by the volume of the injected water phase for calculation to obtain the concentration of the organic matters entrained in the water phase. The method provides a new feasible method to detect the content of the organic matters in the water phase after extraction or reverse extraction, and is very efficient, fast and convenient.

The invention discloses a network digital straight-bar direct-reading roof separation instrument. The network digital straight-bar direct-reading roof separation instrument comprises sensor network nodes and a wireless base station. Each sensor network node is composed of a base point anchor head, measuring ropes, a vertical measuring tube, a segmented capacitance-type displacement sensor, a processor and a direct-reading monitor. A networking protocol is the ZigBee protocol, a network structure is a self-organizing and self-healing overlay tree structure, a tree structure is adopted for the whole network structure, and the sensor network nodes are in communication with the closely-adjacent sensor network nodes only; a grid structure is adopted for part of the network structure, the sensor network nodes are in communication with the secondarily-adjacent sensor network nodes only, and the communication distance between the sensor network nodes is smaller than 100m. According to the network digital straight-bar direct-reading roof separation instrument, network digital straight-bar direct-reading monitoring on roof separation of an underground roadway of a mine through a wireless sensor network is achieved, observation and measurement are convenient to carry out, automatic monitoring and real-time data transmission are achieved, and safety management levels are improved.

The invention discloses a mixed indicator test paper for measuring ammonia concentration in air, a preparation method, and a detection method thereof, and belongs to the technical field of environmental monitoring and industrial hygiene. The test paper is loaded with bromocresol green, methyl red, acid, and nonionic surfactant on the base paper, and has a mass ratio of the bromocresol green: the methyl red: the acid: the non-ionic surfactant=(1.0-2.0): (0.188-0.75): (0.75-2.0): (2.5-7)x10<-3>. The preparation method comprises the following steps: preparing a soaking solution according to the mass ratio; soaking the base paper; and performing drying and encapsulating. The detection method comprises steps that the ammonia in the detection area air reacts with the mixed reagent of the test paper, and the color of the test paper is changed from claret to green; and the concentration of ammonia in the detection area air is obtained according to the relationship between the length of the color changing strip of the test paper and the ammonia concentration. The test paper has the advantages of being sensitive in reaction, high in precision, low in manufacturing cost, convenient to use, and the like, and has practicability and remarkable economic benefits.

The invention discloses an experimental device and method for measuring particle matter vibration. The device comprises a force transmission lead screw, a spring, a force sensor, a pressing rod, an upper cavity, a main cavity, a lower cavity and an air supply system. The upper cavity and the lower cavity are fastened and connected through a screw rod, and the main cavity is clamped between the upper cavity and the lower cavity to form a vertically-through sealed air cavity. The main cavity is formed by integrally processing a transparent acrylic material and is filled with particulate matters,a piston type pressure head capable of moving up and down is arranged at the top end of the main cavity, and the bottom of the main cavity is supported by an air inlet filter plate welded on the lower cavity; a pressing rod is mounted at the top of the cavity; the bottom of the lower cavity is connected with the vibrating table through flange bolts; the air outlet connecting pipe of the upper cavity and the air inlet connecting pipe of the lower cavity are respectively connected with an air supply system, and a flow meter and a pressure meter are installed on the connecting pipes. According to the invention, the thermal stress environment of particles in the cladding can be fully simulated, and the motion state of the particles under vibration can be observed while the pressure load is applied to the particle substances.

The invention relates to the technical field of special shield engineering and particularly relates to a testing method for judging the capacity of cutting a large-diameter pile foundation of a shield cutter head tool. The testing method particularly comprises the following testing steps of: fixing a test pile; hoisting a shield tunneling machine, arranging the shield tunneling machine in place, debugging the shield tunneling machine, installing a reaction frame and assembling a negative ring; measuring an initial position of a cutter head and an initial height of each tool; developing the drilling test and after the test is completed, carrying out statistics on seven single indexes; judging whether each single index meets the requirement of the shield cutter head tool for directly cutting the large-diameter pile foundation; comprehensively judging the capacity of cutting the large-diameter pile foundation of the used shield cutter head tool. The testing method can provide basis for determining whether cutting on the large-diameter pile foundation is feasible and whether the cutter head tool is reasonable; the testing method is simple and convenient to test; under the existing originating conditions of a shield, the test can be carried out after the test pile is fixed, and the subsequent construction is not delayed; the test is carried out in the open-air soilless environment and the testing method is very convenient to obverse and measure.

The invention discloses a simulation system for a top plate breaking process after layered salt rock water-dissolving mining. The simulation system comprises a material box of a rectangular structure,wherein the front side surface and the top surface of the material box are under an open state and are independently correspondingly movably provided with a front surface plate and a cover plate; theperiphery of the top surface of the cover plate is provided with a vertical baffle plate; the baffle plate is provided with threaded holes at equal intervals; the inner side of the lower part of thematerial box is thickened to form a step-shaped supporting structure; the top edges of the rear side surface, the left side surface and the right side surface of the material box are independently provided with round holes at equal intervals; the left side surface thickening part and the right side surface thickening part of the material box and the front side of the bottom surface of the material box are independently provided with round holes at equal intervals; the periphery of the front surface plate is provided with round holes; the material box, the cover plate and the front surface plate are connected through fastening bolts; a rock cavity is arranged between a simulated upper rock covering layer, and a pressure-resistant water bag is placed above the simulated upper rock coveringlayer; the rock cavity is provided with an insertion hole; one end of a cavity body water injection pipe is inserted into the rock cavity, and the other end penetrates through the simulated upper rockcovering layer and the cover plate in sequence to be connected with a brine pressurization device; the pressure-resistant water bag is connected with a water bag water injection pipe; and the water bag water injection pipe penetrates through the cover plate to be connected with a water pressure pressurization device.

The invention discloses a preservative experiment comparison device for improving a cold fresh expiration date, and a use method thereof. The device comprises a base, a motor, object placement disks,isolation covers and shower nozzles, wherein a positioning hole is reversed in the base; the motor is embedded in the inner wall of the positioning hole; the object placement disks are positioned justabove rubber cushions; elastic elements are fixed between each weighing scale and each object placement disk; the top of the base is provided with a positioning plate; the middle of the positioning plate is fixedly provided with a spacing rod; the end part of each isolation cover is provided with a positioning ring; in addition, the positioning ring is sheathed to the outer side of the spacing rod; the control rod penetrates through a communication pipe through a bearing to be connected with a round plate; and each shower nozzle is installed on the center of the top of each isolation cover. The preservative experiment comparison device for improving the cold fresh expiration date, and the use method thereof are convenient for carrying out a comparison experiment, the errors of the resultsof the comparison experiment due to an external environment and a human factor can be reduced, and the comparison result is more accurate and effective.

The invention discloses a network digital straight-bar direct-reading roof separation instrument. The network digital straight-bar direct-reading roof separation instrument comprises sensor network nodes and a wireless base station. Each sensor network node is composed of a base point anchor head, measuring ropes, a vertical measuring tube, a segmented capacitance-type displacement sensor, a processor and a direct-reading monitor. A networking protocol is the ZigBee protocol, a network structure is a self-organizing and self-healing overlay tree structure, a tree structure is adopted for the whole network structure, and the sensor network nodes are in communication with the closely-adjacent sensor network nodes only; a grid structure is adopted for part of the network structure, the sensor network nodes are in communication with the secondarily-adjacent sensor network nodes only, and the communication distance between the sensor network nodes is smaller than 100m. According to the network digital straight-bar direct-reading roof separation instrument, network digital straight-bar direct-reading monitoring on roof separation of an underground roadway of a mine through a wireless sensor network is achieved, observation and measurement are convenient to carry out, automatic monitoring and real-time data transmission are achieved, and safety management levels are improved.

The invention discloses an urban planning measuring device suitable for various gradients. The device comprises a vehicle plate, universal wheels are arranged on the periphery of the lower end of the vehicle plate, and a push handle is fixed on one side of the upper end of the vehicle plate. According to the device, the two ends of a pull rope can be installed at the top of the slope and the bottom of the slope through a positioning assembly, so that the pull rope can keep a straight angle with the slope, the angle of the pull rope can be detected through a finger rod and a bevel protractor, and therefore the angle of the slope can be measured; when pits exist on the slope, and the angle of the whole gradient cannot be accurately detected, a detection assembly can slide from the top to the bottom of the slope, observation and measurement can be facilitated for workers on the two sides; the sliding speed of the detection assembly can be adjusted by rotating a bolt, and accidents or device damage caused by collision of a vehicle body at the foot of a mountain due to too fast sliding can be prevented; and the two stretched ends can be stretched and straightened, so that the angle detection is more accurate.

A glass fiber reinforced plastic pipeline positioning instrument comprises a rack, an air pressure assembly, a horizontal plane positioning assembly and pipeline positioning assemblies. The air pressure assembly and the horizontal plane positioning assembly are arranged on the rack; and the pipeline positioning assemblies are arranged at the positioning end of the rack and communicate with the air pressure assembly. According to the glass fiber reinforced plastic pipeline positioning instrument, the air pressure assembly and the pipeline positioning assemblies are arranged, telescopic air bags are inflated through a sliding plate and an inflation part at the position of a grip, buffer plates and positioning plates conduct positioning according to the shape of a glass fiber reinforced plastic pipeline, the positioning efficiency and accuracy are improved, by locking the telescopic air bags and closing an air valve, the shape of the glass fiber reinforced plastic pipeline is integrally transferred out, and observation and measurement are facilitated; by arranging the horizontal plane positioning assembly, the whole device is positioned, by arranging telescopic plates, the positioning range of a horizontal plate is wider, and the universal applicability of the device is higher; and by arranging a diameter measuring assembly, a worker can conveniently record basic data of the glass reinforced plastic pipeline while positioning the glass reinforced plastic pipeline, and the working efficiency is improved.

The invention discloses a mixed indicator test paper with enhanced sensitivity and loaded with long-chain alkyl pyridine for detecting ammonia in air and a preparation method thereof, and belongs to the field of rapid environment detection and industrial hygiene. The test paper is loaded with bromocresol purple sodium salt, bromothymol blue sodium salt, and long-chain alkyl pyridine on the base paper, wherein the bromocresol purple sodium salt, the bromothymol blue sodium salt, and the long-chain alkyl pyridine have a mass ratio of (4-10):(6-10):(0.02-0.2). The preparation method comprises thefollowing steps of: preparing a soaking solution according to the loading reagent; soaking the base paper; and performing drying and encapsulating. The test paper acts with ammonia gas according to asynergistic reaction between the bromocresol purple sodium salt and the bromothymol blue sodium salt, the color change is obvious, the edge of reaction color of the test paper is clear, the measurement is convenient to observe, and the precision is high. The bromocresol purple sodium salt and the bromothymol blue sodium salt disperse better by the long-chain alkyl pyridine, which creates better uniformity on the filter paper, thereby increasing the length of the test paper color changing strip and improving the sensitivity.

The invention discloses an improving method of an intercepting ditch and the intercepting ditch based on sponge urban runoff accumulation. The ditch adopts two upper and lower ditch structures, two ditches share one outer side wall, and a drain hole is formed in the outer side wall or a stone cage retaining wall is used for constructing to form a water discharge structure, so that the side wall has water permeability and infiltrated water flows can penetrate into the intercepting ditch through the drain hole or the stone cage retaining wall. The ditches of the lower side of the intercepting ditch can combine with the characteristic of large infiltration rate of rainwater in the sponge urban runoff, so that infiltrated inter-flows are discharged into the intercepting ditch through the drainhole of the inner side so as to conveniently collect the inter-flows in the intercepting ditch, and flow, water quality and the like of the inter-flows are observed and tested; the ditch on the upperside can collect water flows of small flow on the ground surface, and the flow and the like of the water flows on the ground surface are observed to overcome the shortcomings of the prior art.