37results about How to "Facilitate extraction" patented technology

The present invention refers to a device, such as a trocar intended to penetrate a body wall in endoscopic surgery to establish a passageway allowing insertion therethrough of surgical instruments, and comprising a tubular sleeve extending through the passageway and having one proximal and one distal end. The device in accordance with the invention is characterized in that the distal end is arranged to be contracted such that it assumes dimensions not exceeding the surgical orifice to allow said end to be introduced into said orifice, and thereafter to expand when applied in position such that is assumes downwards gradually increasing dimensions transversely exceeding the dimensions of the device at the place of the surgical orifice, whereby a funnel-shaped distal end is formed.

The present invention provides a composition and method for stabilizing ribonucleic acid (RNA) from biological samples such that the ribonucleic acid within the sample remains stable at room temperature. The composition comprises an anionic detergent and a buffering agent at a pH of about 5 to about 8.2 and is used in methods for extracting and storing ribonucleic acid from the biological sample.

Systems, processes, and computer program products may be used to perform retinal surgery. In particular implementations, a system, a process, and a computer program product may include the ability to inject a retina manipulation fluid into an eye through an injection / extraction system and apply negative pressure to the injection / extraction system to facilitate extraction of fluid from the eye. The system, the process, and the computer program product may also include the ability to adjust the applied negative pressure.

An implantable electrode array for a cochlear implant has an array trunk that extends along a center axis from an insertion opening in an outer surface of a patient cochlea into the scala tympani. An apical section extends along the center axis from a distal end of the array trunk and a basal branch is separate from the array trunk and extends back from the distal end of the array trunk towards the insertion opening. The apical section follows along an outer lateral wall of the scala tympani during surgical insertion to attain a final insertion position towards the outer lateral wall in an apical portion of the scala tympani beyond a first basal turn of the cochlea. The basal branch attains a final insertion position towards an inner modiolar wall by the first basal turn of the cochlea with the basal branch stimulation contacts facing the inner modiolar wall.

Mixed-metal-oxide (MMO) coated precious-metal tape is installed directly on concrete surfaces using an electrically non-conductive adhesive with semi-conductive coating or overlay, thereby obviating the need for slots or holes to the concrete structures which are not subject to direct moisture. The tape anodes may be installed on the concrete surfaces exposing metals without developing an electrical short circuit between the anode and the metals due to the non-conductive adhesive. The semi-conductive layer over the metal tape can distribute the CP current uniformly to the entire concrete surface without developing electrical short circuit. Overall the invention provides for quick and low cost installation on many concrete structures. Interconnections between the tape anodes and bare metal distribution elements may be made with conductive adhesive or spot welding.

The invention relates to a vehicle model recognition method and system based on improved deep learning. The method comprises the steps that a traffic gate vehicle data set is cut, sorted and classified to obtain classified data, and the classified data comprises a training set, a verification set and a test set; training the improved deep learning Effective Net network according to the training set to obtain a trained deep learning network, the training of the deep learning Effective Net network being based on adjustment of a balance relationship among the network depth, the network width andthe resolution; optimizing the trained deep learning network according to the verification set to obtain an optimal deep learning network; and inputting the test set into the optimal deep learning network for recognition, and performing classification by adopting a softmax classifier to obtain a network recognition result. According to the invention, the vehicle model recognition precision can beimproved.

A squeeze extractor is composed of two speed-regulatable motor sets, speed reducer, axle coupling, bearing, and two screw bolts and their casing. A continuous dynamic countercurrent extracting system with said squeeze extractor for Chinese-medicinal plants is also disclosed. Its advantages are high extracting efficiency and low environmental pollution.

A system and method for extracting seized components is disclosed. The method further grasping a seized component with a gripping mechanism and securing the gripping mechanism to the seized component by turning a camlock mechanism. A force is applied to a power transfer mechanism that moves a threaded axis that is threaded through the power transfer mechanism. The method additionally includes attaching the threaded axis to the gripping mechanism, which extracts the seized component. To facilitate extraction, the method also includes generating vibrations by a vibration mechanism, which may include a vibration mechanism rotating a rotary plate about a shaft. The method may also include generating vibrations by a cam attached to the rotary plate contacting one or more spring-loaded hammers. The spring-loaded hammers may be capable of impacting a strike plate, generating vibrations.

The invention discloses a method for increasing coal-bed gas recovery ratio by using coal-bed indigenous microbes and belongs to the technical field of microbial gas recovery. The method comprises the steps: (1) sampling a coal-bed gas well coal-bed yielded water sample, and carrying out an analysis on the variety and quantity of beneficial indigenous microbes in the obtained coal-bed yielded water sample, wherein the beneficial indigenous microbes are microbes, which produce methane, nitrogen gas and carbon dioxide through metabolism, in a coal bed; (2) determining a formula of a nutrient solution suitable for the growth of the indigenous microbes according to an analysis result on the indigenous microbes obtained in the step (1); (3) preparing the nutrient solution, and injecting the nutrient solution into a gas well. Through adding a nutritional system into the coal bed, beneficial indigenous microflora in the coal bed are activated, and the yield of coal-bed gas is increased by using gases such as methane, nitrogen gas and carbon dioxide and organic acids generated through the underground fermentation of the indigenous microflora. According to the method, bacterial solutions are not required to be prepared, the process is simple, the operation is easy, and the method is safe and environment-friendly.

Belonging to the technical field of tea products, the invention discloses an extraction method for a green tea extract. The method includes: spraying dried green tea wet with water; putting the wet green tea into a pressurization container, pressurizing the container, when the pressure in the container reaches a certain degree, opening a container material spray port, then putting the tea into a pressure reduction container, reducing the pressure in the container, and when the pressure in the container reaches a certain degree, opening the container material spray port; then drying the green tea, and crushing the green tea; firstly soaking the obtained green tea powder with distilled water, and then performing extraction with boiling water; and subjecting the obtained extracted liquid to concentration on a rotary evaporator to obtain a green tea extract. The method provided by the invention employs hot water extraction, and compared with other extraction methods, greatly reduces the extraction cost of tea extracts, avoids the pollution of organic solvents, also has no need for adsorption to remove organic solvents, and the processed tea extract has high safety.

The invention mainly relates to the technical field of aquaculture, and discloses a feed additive for larvae of hypophthalmichthys molitrix. The feed additive is prepared from the following raw materials: fructus paulowniae, ulmus parvifolia leaf, toxicodendron succedaneum leaf, folium celtidis sinensis, fructus viticis negundo, caulis et folium lespedezae bicoloris, fructus caulis celastri, lonicera maackii, folium robiniae pseudoacaciae, viburnum dilatatum leaf extract, white granulated sugar, lactic acid bacteria and complex enzyme. The feed additive disclosed by the invention is rich in raw materials, is extracted from pure plants, contains no any toxic reagents, and is green and environmental-friendly; the raw materials are firstly steamed and boiled under high temperature and is then frozen under low temperature, so that the extraction of effective ingredients is quickened; the raw materials are fermented through the lactic acid bacteria, so that the palatability is increased, the food intake of the larvae of the hypophthalmichthys molitrix is increased, the disease resistance of the larvae is increased, and growth and development are promoted; the raw materials are respectively extracted through water, salt and an alcohol solution, so that the extraction rate is increased by 12.7 percent, and the production cost is reduced; the feed additive is convenient to use and small in dosage, the resistivity and the growing speed of the larvae of the hypophthalmichthys molitrix can be enhanced, the morbidity is reduced to 4 percent, the length of the larvae is up to 27.3mm when the larvae are 20 days old, and the survival rate is up to 98 percent.

A staple puller includes a pair of pivotably connected jaw members that are made from sheet metal. The jaw members have teeth that are configured to hook under a staple and pull it from a stack of pages. But sometimes one leg of a staple remains embedded in the stack after the other leg is pulled free, thus producing a “straggler” that may be difficult to remove if the stack is relatively thick. Accordingly, one of the jaw members is provided with a bent flange that cooperates with an edge of the other jaw member in the manner of pliers so that a straggler can be gripped and pulled out.

The invention discloses a disposable degradable chopstick and a production method thereof. The disposable degradable chopstick comprises, by weight, 20-30 parts of cassava starch, 10-20 parts of peanut hulls, 20-30 parts of almond shells, 35-40 parts of sisal fibers, 27-35 parts of banana fibers, 30-40 parts of food gum, 10-15 parts of molding powder, 0.2-0.3 parts of cactus, 0.1-0.3 parts of fennel, 0.2-0.4 parts of ginkgo, 0.1-0.2 parts of nutmeg and 0.3-0.4 parts of tea leaves. The cassava starch, the sisal fibers, the banana fibers, the waste peanut hulls and the almond shells are comprehensively used, and mixed extract with anti-oxidative and antibiotic functions are added to improve the use performances of the chopstick, and extrusion molding is carried out under the action of the food gum and the molding powder, so the chopstick produced in the invention has the advantages of high strength, large toughness and good antibiotic and anticorrosive effects.

The invention relates to a method for extracting diosgenin by virtue of homogenization process synergetic enzymatic hydrolysis. The method comprises the following treatment steps: removing impurities of ningpo yam rhizome, cutting into slices, drying, baking and crushing, screening by using a 100-mesh sieve, adding 50-70% ethanol which accounts for 5-8 times of the weight of a raw material, using a high-speed pulp refiner, treating ningpo yam rhizome powder for 8-10 minutes at a power of 200W to obtain a dioscin extracting solution, and then performing enzymatic hydrolysis, inactivation, centrifugation and re-crystallization to obtain diosgenin. The method disclosed by the invention is used for extracting diosgenin by adopting homogenization process synergetic enzymatic hydrolysis, is simple in process, short in extraction time and high in extraction rate, does not need expensive instruments, is low in production cost, and can be used for industrial production.

The invention discloses anti-diarrhea forage for a lactation phase pig. The forage is prepared from: by weight, 40-45 parts of black glutinous rice, 30-34 parts of highland barley, 14-18 parts of pleurotus nebrodensis, 10-12 parts of chicken skin, 20-23 parts of cabbage mustard, 3-4 parts of pericarpium granati, 36-38 parts of bran, 42-46 parts of tomato waste residue, 8-12 parts of sea-buckthorn, 3-4 parts of folium artemisiae argyi, 6-7 parts of black tea, 5-6 parts of white sugar, appropriate amount of cellulase, appropriate amount of acetic bacteria, appropriate amount of saccharomycetes, appropriate amount of ethanol, and appropriate amount of water. The forage uses cellulase to process sea-buckthorn, so that the extraction of effective component is improved. The black tea bacteria liquid contains a part of extractum of the tea, living microbe and the metabolite of the microbe. The forage uses twin screw extruder to perform extrusion treatment for the bran, the content of the soluble dietary fiber is increased after extrusion, the surface porosity of the bran is improved, and the water solubility, retention ability and expansibility of the bran are improved. The forage can regulate alimentary canal function of sucking pigs, can prevent alimentary canal disease, can reduce diarrhea, and can promote the growth of piglets.

A hammer that includes a handle with a first end, a hammer head secured to the first end of the handle, the hammer head having a striking head at one end, the striking head having a striking surface thereon, a first frontal extractor extending from the striking head, and a second frontal extractor disposed between the handle and the striking head. In one embodiment, the hammer includes a slot positioned between the first and second frontal extractors, and the webbing being integrally formed with the frontal extractors to connect the frontal extractors together.

The invention relates to a chaenomeles speciosa extract as well as a preparation method and application thereof. The chaenomeles speciosa extract comprises the following components: 10-30wt% of polysaccharide, 7-40wt% of triterpene, and 1-4wt% of antioxidative active substances. The preparation method comprises the following steps: treating a proper amount of chaenomeles speciosa by a pressure cooker; mixing the chaenomeles speciosa powder after high-pressure treatment with different proportions of ethanol aqueous solution according to a certain proportion; carrying out reflux extraction; anddrying the extract to obtain the chaenomeles speciosa extract. According to the preparation method provided by the invention, the high-pressure treatment is utilized to destroy the tissue structure ofthe chaenomeles speciosa, so that the extraction rate of active ingredients in the chaenomeles speciosa and the contents of polysaccharide, triterpene and antioxidative active substances in the chaenomeles speciosa extract are improved.

A bone healing monitoring system, which includes a probe configured to measure at least one physical condition. The probe includes an optical fiber and a control unit attached to the optical fiber. The system also includes a surgically implantable device having a channel extending along at least a portion of the implantable device and is configured to receive the optical fiber therein.

The invention discloses a fabric defect detection method and system based on an over-complete convolutional neural network, and relates to the technical field of fabric surface defect detection, and the method comprises the following steps: an image acquisition step: employing an image acquisition device to collect a fabric image; an image preprocessing step: preprocessing the fabric image to obtain a preprocessed fabric image; a detection step: inputting the preprocessed fabric image into a trained over-complete convolutional neural network model, and outputting a detection result; and a visualization and storage step: visualizing and storing the detection result. The convolutional neural network model structure adopted by the invention is composed of an over-complete branch and an under-complete branch, and the recognition of small defects and the refinement of boundaries are improved while the precision is ensured; the end-to-end detection mode of semantic segmentation is adopted to realize the identification of the defect part of the fabric, and the detection result is more beneficial to the subsequent extraction of the quantitative feature of the defect.

The invention relates to a method for extracting and purifying total anthraquinone from rheum officinale. According to the method, rheum officinale is extracted by adopting a flash extraction method, the extracted solution is concentrated, acid is added into the concentrated solution for hydrolysis, then the hydrolysate is purified by adopting a macroporous adsorption resin, and thus the high-purity free total anthraquinone of rheum officinale is obtained. The preparation process is easy and convenient to operate, and is energy-saving and environmentally friendly, no residue of a toxic solvent exists in the product, and the method is suitable for the industrial production of the free total anthraquinone of rheum officinale by adopting rheum officinale.

The invention provides a multi-level attention scale perception crowd counting method, and belongs to the application of deep learning in computer vision. The method comprises the following specific steps: S1, acquiring a data set; S2, constructing a multi-level attention scale perception neural network; S3, debugging, training and testing the multi-level attention scale perception neural network; and S4, acquiring a camera image, and inputting the camera image into the trained neural network for testing to obtain a predicted density map and a predicted number of people of the image. In this way, the method can be suitable for crowd number detection in a large-scale scene, and the accuracy of a detection result is effectively improved.

The invention discloses an advertising position used in an elevator car. The advertising position comprises an advertising position outer frame, an advertising position body, an advertising position inner frame and an advertising paper position. An inner frame notch for inserting the advertising position inner frame is formed in the advertising position outer frame, the advertising position innerframe is mounted in the inner frame notch, and the advertising position body is arranged on the surface of the advertising position outer frame. The advertising paper position is set on the surface ofthe advertising position inner frame, a push plate mounting notch communicated with the inner frame notch is formed in one side of the interior of the advertising position outer frame, and a push plate is mounted in the push plate mounting notch. By bonding advertising paper into the advertising position inner frame and inserting the advertising position inner frame into the inner frame notch, the advertising paper can be conveniently mounted; by pressing a button, the advertising position inner frame automatically pops out the inner frame notch, so that more convenience is provided for replacing the advertising paper in the advertising position inner frame.

The invention provides a pig protoheme extraction method by which production cycle is short and protoheme purity is high. The pig protoheme extraction method includes the following steps: adding acid acetone into SOD (superoxide dismutase) production waste residues according to the weight ratio of 2:1, performing filtration after stirring, and collecting filter liquor; adding sodium acetate liquor into the filter liquor until the filter liquor becomes neutral, and collecting sediments after centrifugation; adding 0.05-0.15mol / L of NaOH liquor into the sediments according to the volume ratio of (4-6) :1 to dissolve the sediments, collecting the sediments after centrifugation, adding hydrochloric acid into the sediments until the pH value of the liquor becomes 4.0, collecting the sediments after centrifugation, and drying the sediments to obtain the finished protoheme. The pig protoheme extraction method has the advantages that the SOD production waste residues are subjected to purification by sodium acetate, sodium hydroxide and hydrochloric acid in sequence after being extracted by the acid acetone, the extraction time is short, the protoheme sediments are generated completely, and the purity of the obtained protoheme is improved greatly.

The invention discloses ginseng and antler essence boosting tablets and a preparing method thereof.The ginseng and antler essence boosting tablets comprise ginseng, radix astragali, glossy privet fruit, radix angelica sinensis, radix salviae miltiorrhizae, rhizoma atractylodis macrocephalae fried with earth, rhizoma dioscoreae fried with earth, the fruit of Chinese magnoliavine, radix sanguisorbae, fried hawthorn fruit, cynomorium songaricum, corn cervi pantotrichum, radix ophiopogonis and fructus lycii.The ginseng and antler essence boosting tablets treat vitality deficiency and blood and essence insufficiency, have the effects of restoring the pulse, stemming desertion, tonifying the spleen and liver, promoting salivation, nourishing blood, soothing the nerves, boosting the brain, tonifying Yang, tonifying essence and blood and strengthening the bones and muscles and are used for dizziness and nausea caused by a plateau effect and the syndromes of leucopenia, low hemoglobin and dyspepsia after Hepatitis C and B conventional therapy and chemoradiotherapy of a patient with a tumor.The preparing method is simple and easy to implement, by means of the refining production technology, extraction of effective components of the medicine is improved, stability of the preparation is ensured, and therapeutic effect reduction caused by quality difference of the preparation and adverse effects are reduced.

The invention discloses a novel traditional Chinese medicine effective component extraction device, which comprises a bottom plate, a box body, a controller and a medicine loading box, wherein movingwheels are arranged on the front portion of the bottom plate, damping bushes are arranged above the bottom plate, damping springs are arranged in the damping bushes, damping rods are arranged above the damping springs, the box body is arranged between the damping rods, sliding grooves are formed in the box body, electric sliding blocks are arranged on the sliding grooves, a supporting plate is arranged between the electric sliding blocks, and a motor is arranged above the supporting plate. According to the invention, by arranging the temperature sensor, the temperature in the box body can be measured real-timely, the situation that the traditional Chinese medicine is damaged due to too high temperature is avoided, and the extraction of the effective components by the device is promoted; and by arranging the sliding channel and the support seat, the position of the medicine loading box can be fixed stably, and the extraction effect of the device on the effective components of the traditional Chinese medicine is improved.

A method and an apparatus are disclosed for controlling the extraction of frozen moulded products, such as edible ice cream products, from a mould table with a plurality of freezing pockets by filling a pre-product to be frozen into the freezing pockets in the mould table, converting the pre-product into frozen moulded products by exposing the freezing pockets to a cooling medium, gripping one or more of the frozen moulded products by extraction system being driven by a driving arrangement comprising, for instance, one or more servo motors, extracting the one or more frozen moulded products from the freezing pockets while measuring one or more torque or force values exerted by the driving arrangement, and feeding back the one or more measured torque or force values for controlling one or more operational parameters of the freezing apparatus.

A blood vessel segmentation method combining global and neighborhood information is disclosed. The method, on the basis of a Unet network, proposes a Gnet segmentation network, which uses a brand new down-sampling mode and combines with a long-short term memory network at a jump joint, thereby optimizing the extraction of feature information, and reducing the loss of image information; then the network disclosed in the previous step is used as a basic segmentation framework and a parallel network Rnet for calculating neighborhood information is proposed, and a loss function of the network is used as a penalty term of the basic segmentation network to train the segment network Gnet. According to the method, the accuracy of cerebral blood vessel segmentation in MRA image processing is remarkably improved, and the problem of small blood vessel segmentation fracture can be effectively solved.

A method for extraction and content determination of lignan components of Chinese magnoliavine fruit belongs to the technical field of preparation of effective components of Chinese magnoliavine fruit. To solve the problem of low extraction efficiency of lignan components in Chinese magnoliavine fruit, the invention provides a method for extraction of lignan components, which comprises the following steps: 1) mixing Chinese magnoliavine fruit with ethyl acetate in a solid-to-liquid ratio of 1 g:(1.5-6) mL, carrying out extraction with a flash extractor for 1 to 6 times, 30 to 100 seconds eachtime, and putting the extracts together; 2) concentrating the extract from the step 1) and then removing ethyl acetate to obtain an extract; and 3) subjecting the extract to silica-gel column chromatography and subsequent gradient elution, thereby obtaining the lignan components of Chinese magnoliavine fruit. The invention also provides a method for simultaneous determination of lignan componentsof Chinese magnoliavine fruit by high performance liquid chromatography. The method for extraction and content determination of lignan components of Chinese magnoliavine fruit is suitable for deep processing of Chinese magnoliavine fruit.