49results about How to "Achieve the purpose of extraction" patented technology

The invention discloses a method for extracting vanadium from vanadium-precipitated wastewater through microemulsion. The method comprises the following steps: collecting vanadium-precipitated wastewater, and regulating the pH of the vanadium-precipitated wastewater to be 6.0-7.0; adding quaternary ammonium salt N236 and isoamyl alcohol to n-heptane, and stirring to uniformly mix to obtain an organic phase; slowly dropwise adding a mixed solution of NaOH and NaCl to the organic phase; stirring to uniformly mix; standing, wherein the mixed solution is subjected to phase separation after being clarified; collecting the upper phase to obtain saturated W / O microemulsion; mixing the W / O microemulsion and the vanadium-precipitated wastewater, and stirring for a certain time; then standing to layer the mixed solution; collecting the lower water phase; detecting the concentration of vanadium; and calculating the concentration of the organic-phase vanadium through a material balance method, thus calculating the extracting rate. With the adoption of the method, vanadium element in the vanadium-precipitated wastewater can be efficiently and quickly recovered.

The invention provides an inflation type passage device used for taking out a tumor sample per anum after colorectal surgery. The inflation type passage device comprises a passage wall, an inflation pipe, supporting racks and a membrane. The passage wall is in the same of a cylinder with two open ends and comprises a head portion, a middle portion and a tail portion; the passage wall is divided into an inner layer and an outer layer, wherein a cavity is formed between the two layers of elastic thin walls; the inflation pipe is located on the outer surface of the tail portions of the passage wall and communicates with the cavity; the head portion and the tail portion of the passage wall are provided with solid annular supporting racks; the inside of the middle portion of the passage wall isalso provided with the membrane made of elastic materials; the edge of the membrane is hermetically connected with the inner wall of the passage wall. When not inflated, the device is in the shape ofa long strip, so that the device can be placed into a body of a patient without causing much pain to the patient; the supporting racks enable the passage wall to maintain the cylinder shape after inflation, so that operation space is provided to allow operating forceps to clamp a tumor and place the tumor into the passage wall, so that the difficulty of operation is reduced and the success rate is reduced; tumors are completely located in the passage wall, so that the tumors are prevented from spreading after being taken out; the membrane can effectively prevent decompression of an abdominalcavity to guarantee normal progress of surgery.

The invention belongs to the technical field of crop planting machinery, and particularly relates to a seedling taking device of an automatic plug seedling transplanter. The device comprises a rack, a seedling taking part and a seedling transplanting part, the seedling taking part is arranged on the rear portion of the rack, and the seedling transplanting part is arranged on the lower portion of the seedling taking part; compared with the prior art, the device has the advantages the labor intensity of seedling taking operation is reduced, and the operation efficiency is improved.

The invention discloses an air-filled channel apparatus for removing tumor specimens from anus after colorectal surgery. The air-filled channel apparatus comprises a plurality of channel tubes, air tubes, at least two support frames and at least one diaphragm, outer sides of the adjacent channel tubes in sequence are attached and enclosed, and each channel tube is of a cylinder with two ends enclosed and comprises a head, a middle part and a tail part; the wall surface of each channel tube is of an elastic thin wall, and the air tube is located at the tail part of the channel tube and is communicated with the cavity of the channel tube; a ventilation tube is arranged between two neighboring channel tubes and is connected with the neighboring cavities, the diaphragms are arranged in the cavities of the channel tubes, the diaphragms are made of elastic materials, and edges of the diaphragms are tightly connected with the wall surfaces of the channel tubes. By the arrangement, the rumor removed from the anus is assured not to touch the inner wall of the abdominal cavity and tissue in the same, shedding of tumor cells and occurrence of infection can be avoided, wall surface of the bowel can be supported when the air-filled channel apparatus is put into the bowel, and difficulty in operation is greatly lowered.

The invention discloses a centralized photovoltaic power station with stable output voltage, which comprises a base and a connecting plate, and is characterized in that the top of the base is provided with a storage frame, and the inner surface of the storage frame is provided with a shockproof plate; storage sleeves are installed at the four corners of the bottom wall of the storage frame, damping springs which are evenly distributed are installed on the bottom wall of the storage frame and located on the inner sides of the storage sleeves, insertion rods are installed in the storage sleeves in an embedded mode, photovoltaic inverters are installed at the tops of the insertion rods, and a storage battery is installed at the top of the base. The storage battery is located on one side of the photovoltaic inverter, and the photovoltaic inverter is electrically connected with the storage battery. And connecting plates which are arranged front and back are mounted on the front surface of the base. According to the invention, the base, the storage frame, the anti-vibration plate, the insertion rod and the photovoltaic inverter are arranged, and the damping springs and the anti-vibration plate cooperate with each other, so that the influence of vibration on the photovoltaic inverter in the use process can be reduced, and the stability of the output voltage of the power station is improved.

The invention relates to a large field-of-view stray light PST (point source transmittance) testing method and a large field-of-view stray light PST testing device. The large field-of-view stray light PST testing device comprises a large dynamic range light source, a collimator, a clean room, a high-load turntable, an EMCCCD (electron multiplying charge coupled device) and a data acquisition and processing system, wherein the collimator is arranged on the path of emergent light of the large dynamic range light source; the EMCCD is arranged on the high-load turntable and is electrically connected with the data acquisition and processing system; the large dynamic range light source is electrically connected with the data acquisition and processing system; the high-load turntable is arranged on the path of emergent light after passing through the collimator; and the large dynamic range light source, the collimator, the high-load turntable, the EMCCD and the data acquisition and processing system are arranged in the clean room. The large field-of-view stray light PST testing method and the large field-of-view stray light PST testing device provided by the invention have the advantages that the stray light inhibiting ability of the lens hood of a astronautic camera can be effectively evaluated on the ground, the signal-to-noise ratio of the entire camera can be estimated, the astronautic camera can be guaranteed to pick up clear images after the astronautic camera is launched into the sky, the field of view is ultralarge and the accuracy is high.

The invention relates to a model establishment method and system for extracting time-specific data of ECG. The model establishment method includes the steps that S1, DCG information of sudden cardiacdeath survivors and DCG information of normal subjects are obtained; S2, obtained ECG signals are de-noised by using wavelet de-noising to lower power frequency interference with maximum frequency andminimum period and baseline drift with maximum period and minimum frequency; S3, the peak of ECG data after de-noising is determined and characteristic parameters are extracted; S4, logistic regression models are established for time points according to peak determination and characteristic parameter extraction results, the characteristic parameters are selected, and the characteristic parametersof the time points are selected by five times crossover operation; and S5, according to the selected characteristic parameters, the models of the points are synthesized through a Bayes theory, and afinal model is established. According to the model establishment method and system for extracting the time-specific data of the ECG, time-specific data extraction of the ECG signals of sudden cardiacdeath at 24 hours can be realized.

The invention relates to a take-out device, in particular to a cocoon take-out device for sericulture. Provided is a silkworm cocoon taking-out device for sericulture that improves taking-out speed, improves efficiency, reduces time cost, and protects the health of workers' hands. A silkworm cocoon removal device for sericulture, comprising: a support frame, the two parts on the top side of the base are connected with the support frame; an installation frame, one part on the top side of the base is connected with the installation frame; The feeding frame; the first sliding sleeve, the four sides of the top of the base are connected with the first sliding sleeve. Through the cooperation of the motor, the first bump, the gear rod and the pushing block, the purpose of taking out the cocoon in the cocoon frame is realized, the taking-out speed is improved, and the hand health of workers is protected.

The invention discloses a method for rapid lane departure warning. The method comprises the steps that S1, a real-time image is obtained when a vehicle travels; S2, after the real-time image is processed in a preset effective area, a binarization image of the real-time image in the effective area is obtained; S3, transverse detection is conducted on the binarization image in preset vertical spacing and after a plurality of sets of binarization sequences are obtained, matching processing is conducted on the sets of binarization sequences according to a preset width matching threshold; S4, after Hough transformation is conducted on a matching processing result, a lane line is extracted, then the included angle and the point of intersection of the lane line and the bottom margin of an effective area are calculated, then whether a vehicle exceeds the line or not is judged, and if the answer is positive, a warning is given. The method is high in responding speed, high in accuracy, strong in robustness and capable of being widely used in vehicle driving.

The invention provides a tendon-relaxing and pain-easing capsule. The tendon-relaxing and pain-easing capsule is prepared from the following raw materials in weight: 150-400g of Chinese angelica, 100-300g of frankincense processed with vinegar, 100-300g of ground beetles, 10-80g of rhzizoma drynariae, 10-80g of vinegar calcined native copper, 10-80g of calcined borax, 10-80g of safflower, 10-80g of myrrh processed with vinegar and 10-80g of Chinese rhubarb. The invention also discloses a preparation method of the tendon-relaxing and pain-easing capsule. The invention also finds that the tendon-relaxing and pain-easing capsule can increase content of ferulic acid and has the effect obviously better than that of a control group during treatment on rheumatic arthritis.