101results about How to "Guaranteed Saturation" patented technology

The invention discloses an automatic rheological direct-shear apparatus and an operation method thereof. The automatic rheological direct-shear apparatus comprises a rheological direct-shear instrument (1) and a computer (2). The rheological direct-shear instrument (1) is under servo closed-loop control, a vertical load sensor (1-19) in a vertical servo loading system is employed for adjusting and controlling axial stress applied on a sample (1-30), and meanwhile, a first horizontal load sensor (1-3) arranged in a horizontal shear driving system and connected with a horizontal shear driving device is used for applying a constant a horizontal shear force on the sample (1-30), so direct-shear creep test of soil is realized; and at the same time, a horizontal displacement sensor (1-16) is employed for accurate control of the horizontal shear amount of the sample (1-30), so direct-shear strain relaxation test of soil is realized. The automatic rheological direct-shear apparatus provided by the invention can carry out both conventional direct-shear test and rheological direct-shear test on soil, has high stability and can realize accurate control of testing and whole-process automation of acquisition.

The invention discloses an indoor test method forming an artificial hard shell layer by microbial curing silty-fine sand. Silty-fine sand is paved on slurry which is thick enough, the slurry is separated from the silty-fine sand by a seepage-proofing thin film, liquid is injected into the left side by a liquid injecting peristaltic pump until a sand layer is saturated, liquid on the right side is extracted by a liquid extracting peristaltic pump to form horizontal laminar flow, the flow velocity of liquid injection and extraction is controlled, so that liquid injection and extraction are balanced, and silty-fine sand layers are cemented and cured by MICP (microbial induced calcium carbonate precipitation) technology to form the hard shell layer. The hard shell layer has high rigidity and strength, the carrying capacity of a soft soil foundation can be multiply improved, sand consumption is greatly decreased, the hard shell layer is resistant to liquefaction, and the requirement of basic carrying capacity can be met.

The invention discloses an overhead rail pull-type electric flux integrated environment monitoring miniature intelligent robot for a pipe rack. The miniature intelligent robot comprises an overhead rail fixed at the top of the pipe rack, an inspection robot suspended on the overhead rail and a traction motor arranged at two ends of the overhead rail, wherein the inspection robot is suspended on the overhead rail through a hanging wheel mechanism; the hanging wheel mechanism is connected with the traction motor through an armored load cable; the traction motor pulls the inspection robot to run on the overhead rail through the armored load cable; and meanwhile, the armored load cable communicates with the inspection robot for electric energy transmission and data communication. Real-time inspection is carried out on the pipe rack through the inspection robot, the inspection security of the pipe rack is improved and the saturability of the inspection task is ensured. Timely abnormal failure processing and risk control can be achieved, the emergency responsivity is high and potential security failure and risk in the pipe rack can be effectively monitored and treated.

The invention discloses a magnetic isolation drive circuit comprising an isolation drive transformer, a first capacitor C1, a second capacitor C2, a discharge MOS pipe and a discharge MOS pipe drive circuit, wherein the isolation drive transformer is used for transmitting an isolation drive signal; the first capacitor C1 is connected with the input side of the isolation drive transformer in series; the second capacitor C2 is connected with the output side of the isolation drive transformer in series; the discharge MOS pipe is connected with the output end of the magnetic isolation drive circuit in parallel; the discharge MOS pipe drive circuit is connected to a grid electrode of the discharge MOS pipe; and a series loop is formed by an output side winding of the isolation drive transformer, the second capacitor C2 and the discharge MOS pipe. The magnetic isolation drive circuit has simple structure and low cost and can effectively increase the stability of a power supply which works in a stable state and a transient state.

This invention puts forward a design plan for wetting technology and system used in test platforms of large power fuel cells, which puts forward a heat-exchange system of two stages or multiple stages to transfer heat generated by fuel cells to reactant gas entering into the fuel cell, in order to increase the gas / liquid medium-transfer ability of the wet system, a high efficient filled converse flow spray tower is taken as a main wetting device and temperature of a spray medium is controlled accurately to guarantee temperature of wetting and saturation of vapor, which can control the relative humidity of the reactant gas entering into a fuel cell stack within +-2% and relative temperature in +-0.1deg.C by controlling the temperature of an overheater with an outer heater and efficient heat-transmitting filling component accurately, and a foam-removing system with accurate temperature control is matched to avoid liquid from entering into the back system.

The invention discloses a utility tunnel inspection robot and a utility tunnel inspection system. The inspection robot comprises a moving module, which is slidingly arranged on a guide rail, a movingcarrier connected to the moving module, an inspection robot body, which is slidingly arranged on the moving carrier, a sensor assembly arranged on the inspection robot body, a mechanical arm arrangedon the inspection robot body, and an intelligent control module for controlling the inspection robot. The sensor assembly and the mechanical arm are both connected to the intelligent control module. The inspection robot can adapt with complicated conditions of utility tunnels, is capable of rapidly, comprehensively, circularly, and dynamically inspecting utility tunnels in 24 hours, and greatly improves the utility tunnel safety and inspection efficiency.

The invention discloses an automatic gain control method of a wireless receiving system, including the following steps of: A, determining whether the received signal of current time slot is in a saturated state at the beginning of the time slot, if so, then executing a step B, otherwise, directly executing a step C; B, reducing the gain of a receiving channel at the beginning of the time slot so as to make the current time slot in an unsaturated state, then executing the step C; C, controlling the gain of the receiving channel based on predetermined conditions according to the received signal strength of the current time slot in a non-ramp region. The method of the invention can ensure unsaturation of the receiving channel while a large signal is input and realize real time automatic gain control. The invention further provides a corresponding automatic gain control device of the wireless receiving system, and a transceiving unit using the same. The invention is suitable for the automatic gain control of a multi-carrier GSM(Global System For Mobile Communication) system particularly, and has wide industry application prospect.

The invention provides stress-strain control type direct shear apparatus. The direct shear apparatus comprises a square shear box containing a rock-soil body sample, wherein the square shear box is composed of an upper shear box and a lower shear box. The upper end of the upper shear box is provided with a vertical pressure loading mechanism used for exerting a vertical load on the rock-soil body sample. One end of the lower shear box is matched with a horizontal shear loading mechanism used for a stress control type direct shear experiment, and the other end of the lower shear box is matched with a horizontal loading mechanism used for a strain control type direct shear experiment. The horizontal loading mechanism comprises a torque converting box arranged on an experiment platform and a horizontal loading tension and pressure sensor connected with the torque converting box and the lower shear box. The stress-strain control type direct shear apparatus not only can carry out the strain control type direct shear experiment, but also can carry out the stress control type direct shear experiment. The stress-strain control type direct shear apparatus is simple in structure, low in manufacturing cost, and easy to popularize in and apply to production and teaching.

The invention discloses a compound aminolinbarbitone injection and manufacturing method, which comprises the following parts: 5. 0-5. 3% aminobilin, 2. 0-2. 2% analgesine, 0. 9-1. 0% barbitone, 0. 0014 -0. 0018% disodium calcium ethylene diamine and injecting water. The manufacturing method of compound aminolinbarbitone injection comprises the following steps: injecting 5. 0-5. 3% aminobilin, 2. 0-2. 2% analgesine and 0. 9-1. 0% barbitone into injecting water; blending; embedding; aerating CO2 into the injecting water until saturating; setting the temperature of the injecting water at 60-70 deg. c; adding complex builder into the injecting water before adding the main drug components; dispensing to stir evenly; aerating CO2 continuously over 30 min; embedding to aerate N2. The invention is added with 0. 05% active char to stir to adsorb over 15 min to add the same batch of drug liquid to refilter and embed, which stabilizes the injection quality.

The invention provides a power control method for improving the power amplifier switch spectrum. The method comprises the steps that (1) the grid voltage and the drain voltage or grid voltage and power supply voltage of a passing element are detected, and the saturability information of the passing element is obtained; and (2) if the saturability information shows that the passing element is about to be separated from a saturability working zone, the drain current of the passing element is shunted to an error amplifier, and drain output voltage is lowered. Meanwhile, the invention discloses a power control circuit for achieving the method. Simple and ingenious circuit design is used, the changing rate of output voltage can be reduced, the output voltage is prevented from being close to power supply voltage quickly, the saturability of the passing element is maintained, and the switch spectrum feature of a power amplifier is obviously improved.

The invention discloses a method for combined production of ammonium sulfate and ammonia through water heat pump flash evaporation, stripping and deamination. The method comprises the following steps: ammonia nitrogen steam discharged from the top of the stripping section of a composite stripping and deaminating tower (3) is pressurized through a steam circulating heat pump (11), and the pressurized ammonia nitrogen steam is divided into three parts; the first part of the ammonia nitrogen steam enters the two stage mixing section of the composite stripping and deaminating tower (3) to heat ammonia nitrogen wastewater; the second part of the ammonia nitrogen steam enters a saturation tower (4) and undergoes ammonia nitrogen preliminary absorption, and the absorbed ammonia nitrogen steam enters an absorption tower (5) and undergoes ammonia nitrogen purifying recovery; and the third part of the ammonia nitrogen stem enters the tower top rectifying section of the composite stripping and deaminating tower (3) to produce the ammonia water product. The method allows ammonium sulfate and ammonia water to be simultaneously produced, and a ratio of ammonium sulfate to ammonia water can be adjusted according to reuse requirements of a production device, so ammonia nitrogen recovered from the wastewater can be completely reused in the production device in order to realize good energy saving, consumption reduction and deamination effects.

The invention provides an OLED pixel and a display panel using the same. The OLED pixel comprises three sub-pixel groups. Each sub-pixel group comprises a first sub-pixel and a second sub-pixel, wherein the first sub-pixel and the second sub-pixel share one driving circuit, and the light emitting waveband of the first sub-pixel and the light emitting waveband of the second sub-pixel are complementary. The sum of the light emitting wavebands of the first sub-pixels of the sub-pixel groups is a white light waveband. According to the OLED pixel and the display panel using the same, the sub-pixels are formed by means of the principle of diffraction of light and the combination of white light OLED light emitting bodies, beam splitting pieces and light barriers. Due to the fact that the six kinds of sub-pixels all adopt the white light OLED light emitting bodies, the problem of chromatic aberration caused by different aging degrees of different materials is avoided. Due to the fact that three kinds of sub-pixels are additionally arranged to assist imaging processing, luminous efficiency of the OLED pixel is improved and power consumption is reduced. Due to the fact that the two sub-pixels of each sub-pixel group share one driving circuit, the distinguishability of the OLED display panel is improved.

The invention discloses an image saturation enhancement method. The method comprises the following steps: converting received image signals into HSI image signals; carrying out saturation enhancement processing on the HIS image signals after conversion; and reducing the HIS image signals subjected to the saturation enhancement processing to image signals in an original format. The invention also discloses an image saturation enhancement apparatus. The image saturation enhancement method provided by the invention prevents the phenomenon of image distortion caused by direct enhancement adjustment of RGB image signals and guarantees the saturation of an image display terminal in displaying images.

The invention discloses a solar power generation device which comprises a battery pack, a solar charging device and a pedestal. The battery pack is a storage battery pack, the storage battery pack is connected with the solar charging device, a solar cell panel of the solar charging device is connected with the anode and cathode of the storage battery pack via a charging line, a light arc generator and a rectification device are arranged between the solar cell panel and the storage battery pack, the solar cell panel is arranged on the pedestal, the pedestal is provided with a rotation seat, the included angle between the solar cell panel and the horizontal plane is 45 degree, the bottom end of a bracing frame is provided with a rotating shaft, the rotating shaft is clamped in a rotating seat, the pedestal is internally provided with a rotation device and a control circuit board, and the rotation device is connected with the rotating shaft. The solar cell panel can rotate automatically according to the irradiation direction of sunlight, so that the solar cell panel can face sunlight timely, and the sunlight collection and utilization efficiency is improved.

The invention relates to the field of rebar sleeve grouting and specifically discloses a variable pressure grouting pump and a grouting method. The grouting pump comprises a feeding part, a grouting part and an output part; the grouting part is connected with a discharging port of the feeding part; the output part is connected with a slurry outlet of the grouting part; the output part comprises acontrol valve and a conveying pipe; the control valve comprises a first valve inlet, a second valve inlet and a valve outlet; one end of the conveying pipe is connected with the valve outlet; the slurry outlet comprises a variable pressure slurry outlet and a normal pressure slurry outlet; the variable pressure slurry outlet is connected with the first valve inlet through a variable pressure device; the normal pressure slurry outlet is connected with the second valve inlet. According to the invention, the variable pressure slurry outlet is added and the variable pressure device is arranged between the variable pressure slurry outlet and the control valve, so that the technical problem of influences on slurry discharging pressure and flow of the grouting pump caused by untight closing of aslurry discharging valve block in the prior art can be solved, and the saturability, evenness and airtightness of slurry in the sleeve can be promoted.

The invention discloses home decoration intelligent full-automatic seam-beautifying equipment, and relates to the technical field of building decoration equipment. The home decoration intelligent full-automatic seam-beautifying equipment comprises a machine table bracket, an X-axis track, an X-axis driving mechanism, a Y-axis track, a Y-axis driving mechanism, a first connection plate, a second connection plate, a mounting plate, a single chip microcomputer controller, a slotting clearing mechanism and an injected agent compaction mechanism; the X-axis track is mounted on the upper part of themachine table bracket, the X-axis driving mechanism is in vertical matched connection with the X-axis track and is arranged on the upper part of the track, the Y-axis track and the X-axis track are perpendicular, the Y-axis driving mechanism and the Y-axis track are in vertical matched connection, and the single chip microcomputer controller is in control connection with the X-axis driving mechanism, the Y-axis driving mechanism, the slotting clearing mechanism and the injected agent compaction mechanism. According to the home decoration intelligent full-automatic seam-beautifying equipment,labor of people is replaced with the machine, the operation efficiency is improved, and the labor cost is lowered; and meanwhile, even glue outlet can be ensured to the greatest limit through machineoperation, the defect that the operation quality is completely determined by the proficiency of workers is made up, and the operation operating threshold is lowered.

The invention relates to the technical field of capacitor production and processing. The invention further discloses capacitor film processing detection equipment capable of recording detection points. The equipment comprises a base, a photoresistor and a lighting device are arranged in a detection device, a coil is arranged on the left side of a first spring, a magnetic column is arranged in themiddle of a first rotating shaft, an air bag is connected to the outer side of the first rotating shaft, a magnetic rod corresponding to the magnetic column is connected to the outer side of a secondrotating shaft, and a cloth layer is connected between the right end of an ink box and sponge. Through thinning or breaking of a film, the light received by the photoresistor is increased, the magnetic field generated by the coil pushes a sliding rod to move rightwards, and the sliding rod drives the air bag to extrude a paper feeding roller. When the cleanliness of the film is low, under the action of the first spring, the first spring drives the air bag to be away from the paper feeding roller through the sliding rod. The structure solves the problems that an existing capacitor film detection device can only record defects manually and can only carry out observation and record once, and the film is prone to damage during detection.

The invention discloses a two-dimensional injection agent compacting device for home decoration sewing, and relates to the technical field of building decoration equipment. The two-dimensional injection agent compacting device comprises a machine table bracket, an X-axis rail, an X-axis drive mechanism, a Y-axis rail, a Y-axis drive mechanism, a first connecting plate, a second connecting plate, amounting plate, a single chip microcomputer controller and an injection agent compacting mechanism, wherein the X-axis rail is mounted above the machine table bracket; the X-axis drive mechanism is in matched connection to the X-axis rail perpendicularly, and is arranged above the rail; the Y-axis rail is perpendicular to the X-axis rail; the Y-axis drive mechanism is in matched connection to theY-axis rail perpendicularly; and the single chip microcomputer is separately connected to the X-axis drive mechanism, the Y-axis drive mechanism and the injection agent compacting mechanism. The equipment replaces labor of people through a machine, improves operation efficiency and reduces labor cost; machine operation can be adopted to guarantee uniform glue discharge to the greatest extent, thedefect that operation quality is completely determined by proficiency of a worker is made up, and the operation threshold is reduced.

The embodiment of the invention provides a color gamut conversion method, a color gamut converter and a displaying device, relates to the technical field of displaying and is used for solving the problem that color saturation of a whole displaying image is reduced resulting from increasing white subpixels. The color gamut conversion method comprises the steps of obtaining an RGB signal; computingpreset gray values of white subpixels of each pixel in an RGBW domain when a gray value of each monochromatic subpixel in each pixel of an RGB domain is converted to the RGBW domain; dividing at leastone detection area in the original image, and judging whether the detection area is a high saturation color block or not according to luminance and saturation of the pixels in the detection area; setting that first gray maximum values of the white subpixels of each pixel in the RGBW domain is smaller than 255, in the high saturation color block, if the detection area is the high saturation colorblock; and at least taking the first gray maximum values and the minimum values in the preset gray values as target gray values of the white subpixels.

The invention relates to a preparation method of a bio-based rigid foam material with a negative Poisson's ratio and a product, and belongs to the technical field of materials. The method comprises the following steps of: firstly, preparing a bio-based rigid foam material through a supercritical fluid foaming technology, and then taking the bio-based rigid foam material as the raw material to prepare the bio-based rigid foam material with a negative Poisson's ratio through a heating-three-dimensional axial compression process. The method is simple and easy to operate, low in equipment requirement, low in cost and suitable for expanded production. The foam material prepared by the method not only is light in weight and degradable, but also has excellent compression, shock resistance and other mechanical properties, and has good application prospects in the fields of aerospace, automobiles, ships, encapsulation and the like.

The invention provides a solder mask hole-plugging structure and a hole plugging method thereof. The solder mask hole-plugging structure comprises a PCB substrate and a solder mask screen plate; the PCB substrate comprises a through hole; one end of the through hole is provided with an S-side open window, and the other end of the through hole is provided a C-side open window; a screen hole is formed in the screen plate; the diameter of the through hole is d; the diameter of the S-side open window is d; the diameter of the C-side open window ranges from 0.8d to 0.9d; the diameter of the screenhole is d; the screen hole is aligned with the S-side open window; the through hole is filled with solder mask from the S-side open window through the solder mask screen plate; and the PCB substrate is baked. With the solder mask hole-plugging structure and the hole plugging method thereof of the invention adopted, the solder mask can be effectively accommodated and borne; pressure of two ends ofthe solder mask can be effectively balanced, so that the solder mask can smoothly enter the through hole, and therefore, the saturation of the hole-plugging of the solder mask can be ensured; and thesolder mask will not be abnormally expanded due to pressure imbalance, so that it can be effectively ensured that the solder mask will not linger on the tin side of a PCB, and therefore, the quality of the hole-plugging of the PCB can be significantly improved.

The invention discloses a method for processing a pine needle semi-finished product and application thereof. The method is characterized by comprising the following steps of: picking biennial or more live mature pine needles on the middle lower part of a branch of a pine which is more than 5 years old, and cleaning, dedusting and spinning the picked pine needles to dry; baking the pine needles atthe temperature of between 32 and 60 DEG C until the moisture content is 5 to 15 percent; separating the obtained pine needles by using a fiber separating machine to form pine needle laminas which are distributed uniformly; and clamping ends of the pine needle laminas by using a clamp holder, and then sewing the pine needle laminas by using a fixed line to connect the pine needle laminas into a whole to obtain the pine needle semi-finished product. The pine needle semi-finished product can serve as a material for manufacturing insoles, slippers, a cushion or a pillow, so that the pine needle semi-finished product has the advantages that: the insoles and the slippers manufactured by the pine needle semi-finished product are comfortable to wear, dry and breathe freely, and meanwhile, have the effects of effectively restraining the sweat and curing the beriberi; the cushion or the pillow manufactured by the pine needle semi-finished product has the effects of curing hypertension, benefiting the skin and sterilizing; and the method has the advantages of simple manufacturing process and high work efficiency.

The invention provides a color printing method for adding polarization information to an ultrathin semiconductor nano-coating. The method comprises the following steps that 1, a magnetic metal layer is evenly deposited on a substrate made from any material through a film deposition technology, and the thickness of the metal layer is not larger than 100 nm; and 2, an ultrathin semiconductor film is deposited on the magnetic metal layer through the deposition technology, different colors can be shown by controlling the thickness of the ultrathin semiconductor film and utilizing the absorption characteristics of the semiconductor material, and the maximum thickness of the ultrathin semiconductor film is not larger than 50 nm. The substrate is made from any material, and the two-layer model structure is utilized, specifically, the first layer is the magnetic metal (iron) layer, and the second layer is the semiconductor film. By means of the method, colors of a whole color spectrum can be obtained through modulation, colors and polarization can be controlled simultaneously, and a giant Kerr angle can be achieved. The film structure prepared through the method is free of color fading and Kerr angle reduction as time passes. As the printed coating is ultrathin, the specific form of the substrate is not influenced, and a unique printing effect can be obtained.

The invention belongs to the technical field of safety guarantee of extra-high-voltage alternating-current power grid electrical equipment, and particularly to a direct-current magnetic bias real-timecalculation method for extra-high voltage transformer parallel winding series resistance compensation. The method comprises the following steps: constructing three-dimensional geometric models of three transformers and a direct-current magnetic bias calculation magnetic field model according to actual structural parameters of a main transformer, a voltage regulation transformer and a compensationtransformer of the extra-high voltage transformer; calculating a self-inductance value when different currents flow through each transformer winding and a mutual inductance value between the windings; in combination with an electrical connection relationship among the three transformers, establishing an overall direct-current magnetic bias equivalent circuit calculation model of the three transformers through series resistance compensation voltage; solving the direct-current magnetic bias circuit model by using a fourth-order Runge-Kutta method of inductance parameters; multiplying the instantaneous current value of the branch where the series resistor is located by the increased series resistor to perform voltage compensation; and calculating the voltage and current values of each transformer and carrying out FFT (Fast Fourier Transform) to obtain the voltage and current harmonic condition of each transformer under the direct current magnetic bias of the extra-high voltage transformer.

The invention belongs to the technical field of curing agents, and particularly relates to a high-humic-acid soil curing agent and a preparation method thereof. The high-humic-acid soil curing agent comprises substances in percentage by mass: 25%-40% of steel slag, 15%-25% of fly ash, 10%-15% of quick lime, 10%-20% of ordinary Portland cement, 6%-10% of an exciting agent, 1%-5% of an ion replacing agent, 1%-3% of a water repellent, 4%-6% of a retarder, 1%-2% of an early strength agent, 1%-3% of a filling agent, 1%-3% of a stabilizer, 1%-2% of an air entraining agent, 0.5%-1% of a water reducing agent and 0.5%-2% of a humic acid modifier. The high-humic-acid soil curing agent has the effects and advantages that the influence of humic acid on soil can be effectively reduced, the shear strength, the compressibility and the water stability of the soil are improved, the pore size, the compressibility and the permeability of the soil are reduced, and good economic and environmental benefits are achieved.

The invention discloses a fine aggregate asphalt mixture sample humidity curing method. The method comprises the following steps: forming and preparing a standard fine aggregate asphalt mixture sample according to designed grading and asphalt dosage; placing the sample in a vacuum dryer, regulating vapor pressure in the vacuum dryer by use of a saturated saline solution, so as to achieve 0-100% middle relative humidity; installing a temperature-humidity recorder in the vacuum dryer to record temperature-humidity change in the vacuum dryer in real time; placing the vacuum dryer in a biochemical incubator at 20 DEG to perform the humidity curing, wherein the sample curing humidity requirement is achieved when the sample quality maintains stable, and relative humidity is relative humidity in the vacuum dryer. The invention provides the method of performing the fine aggregate mixture sample curing under a vacuum state by using a chemical reagent as a humidity curing agent; the method has obvious innovation in the reasonability of the curing and the convenience in operation, and the curing effect is excellent.

The invention provides a full-section tunnel excavation seepage-stress coupling model test device and method. A surrounding rock model is manufactured in a pressure chamber through a mold, a flat rubber water bag and a cylindrical rubber water bag are embedded into a gap in the outer side of the surrounding rock model and a hole in the center of the surrounding rock model respectively, and the rubber water bags are connected with hydraulic loaders through water pipes respectively and used for simulating the surrounding rock pressure and the stress release process in the tunnel excavation process. Geotextile is placed between the rubber water bags and the surrounding rock model, and the geotextile is connected with a hydraulic loader and used for applying pore water pressure boundaries. A pore water pressure sensor is pre-buried in the surrounding rock model and used for monitoring pore water pressure changes. The full-field strain and deformation of the rock mass model are measured ina non-contact manner by adopting a digital image acquisition system. The device and the method have the advantages that the device and the method are used for researching surrounding rock stress-strain characteristics and seepage-stress coupling characteristics in stress release procedures when tunnels in saturated low-permeability strata are excavated, and accordingly test support can be providedfor tunnel excavation.

The invention relates to a measuring apparatus and a measuring method for vertical effective diffusion coefficient of solutes in a saturated soil layer. The measuring apparatus includes a measuring apparatus main box, which includes, internally from bottom to top successively, a water tank, a soil test sample zone, and a solution zone. The water tank is filled with quartz sand and the soil test sample zone is filled with a soil test sample; a plurality of sampling tubes are disposed uniformly in the soil test sample zone and vertically pass through the measuring apparatus main box and are stretched into the soil test sample. The measuring method includes the steps of: firstly successively filling the measuring apparatus main box with the quartz sand and the soil test sample; sealing the sampling tubes and adding tap water to the solution zone until the soil test sample is saturated; and then replacing the tap water in the solution zone with a solution at the same liquid level height; finally, opening the sampling tubes to obtain a filtrate, and analyzing the filtrate to determine the vertical effective diffusion coefficient of the solutes in the saturated soil layer. Compared with the prior art, the measuring apparatus has simple structure and accurate and reliable measurement result.

The invention discloses a method of accelerating germination of seeds of Abrus cantoniensis. The method includes: collecting seeds, drying and sorting the seeds, hydro-priming the seeds, and sterilizing and germinating the seeds. According to the features of the seeds of Abrus cantoniensis, polyethylene glycol solution is used in hydro-priming to remove dormancy of hard seeds of Abrus cantoniensis, the steps such as tedding and after-ripening, screening and water separation are utilized to ensure seed maturity, fullness and uniformity, sterilizing liquid is used to kill germs on the surfaces of the seeds, moderate light, temperature and water conditions for germination are provided, and germination of the seeds of Abrus cantoniensis is accelerated. Compared with the common cultivation methods of seeds of Abrus cantoniensis in which germination potential is 2% and germination rate is 20%, the method has the advantages that the germination potential is increased to greater than 9%, and the germination rate is increased to greater than 75%.

The invention discloses an automatic feed feeding device for cage type fish culture. The automatic feed feeding device comprises a cage body, a set of slide rail, an automatic feeding bin, a filling device, a horseshoe-shaped toggling ring and a feed bin, and the cage body is provided with a metal frame formed by making longitudinal rods engaged with transverse rods; the slide rail is arranged in the metal frame; the automatic feeding bin is slidably arranged on the set of slide rail, and comprises multiple feeding pipes which are uniformly and parallelly arranged at intervals, and pipe cavities of the feeding pipes are communicated with one another; the filling device is detachably engaged with the feeding opening of the feeding pipe at the uppermost end of the multiple feeding pipes through a feed filling opening; the horseshoe-shaped toggling ring is fixed to the portion below the feed filling opening, and in the vertical direction, an opening of the horseshoe-shaped toggling ring is located over the free end of a cap body; the feed bin is communicated with the other end of a feed filling pipe. The automatic feed feeding device for the cage type fish culture can intensively deliver fish feed into a water body in the cage, fish automatically take the feed instead of being fed, in this way, waste of the feed is drastically reduced, the pollution of the feed to the water body can further be avoided, and the cost of cage fish culture is drastically reduced.