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139 results about "Lateral line" patented technology

The lateral line, also called lateral line system (LLS) or lateral line organ (LLO), is a system of sense organs found in aquatic vertebrates, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these signals into electrical impulses via excitatory synapses. Lateral lines serve an important role in schooling behavior, predation, and orientation. Fish can use their lateral line system to follow the vortices produced by fleeing prey. Lateral lines are usually visible as faint lines of pores running lengthwise down each side, from the vicinity of the gill covers to the base of the tail. In some species, the receptive organs of the lateral line have been modified to function as electroreceptors, which are organs used to detect electrical impulses, and as such, these systems remain closely linked. Most amphibian larvae and some fully aquatic adult amphibians possess mechanosensitive systems comparable to the lateral line.

Underwater bionic lateral line sensing array

ActiveCN108362334AAvoid being affected by the surrounding large flow field environmentAccurate measurementHydrodynamic testingTransducerWater flow
An underwater bionic lateral line sensing array includes a bionic lateral line array structural body, runner water holes, an inner channel and a plurality of water current and water pressure compositesensors, wherein each water pressure composite sensor includes cilia made of electric reactive polymer smart material, a pressure transducer, electrodes and a pedestal. The bionic lateral line arraystructural body is therein provided with the inner channel in the length direction. The water current and water pressure composite sensors are arranged in the inner channel. The runner water holes communicating with the inner channel are arranged in one side of the bionic lateral line array structural body. The pedestals are arranged in the inner channel. Four electrodes are arranged on each pedestal. Each pedestal is provided with the cilia made of electric reactive polymer smart material and the pressure transducer is arranged on the pedestal. The underwater bionic lateral line sensing arrayhas a fish lateral line simulating system and senses water current and water pressure change at the same time, is high in anti-interference capability, high in sensibility and precision, and can provide measurement basis for accurate sensing of water environment change in the surrounding of a lateral line system.
Owner:XI AN JIAOTONG UNIV

Multifunctional AUV based on bionic lateral line

The invention discloses a multifunctional AUV based on a bionic lateral line, sensors are welded on a PCB circuit board and embedded in a carrier casing, a front head cabin, a main body cabin and a tail part are in streamlined head-tail sequential connection, sensor holes showing as the bionic lateral line are evenly distributed on the front head cabin and the main body cabin, the rear ends of both sides of the main body cabin are provided with steering engines, the end parts of the steering engines are connected with propellers, the end parts, far away from the front head cabin, of the propellers are provided with guiding covers, the terminal end of the main body cabin is provided with the tail part, and the tail part is a streamlined fish tail structure. Pressure data is obtained by the sensors which are arranged like the bionic lateral line, and during velocity measurement, a carrier directly faces the flow direction, and can correctly estimate local velocity. The AUV can determine direction and a path of a vibration source by sensing pressure gradients and changes so as to realize underwater positioning or obstacle avoidance. The multifunctional AUV has the advantages of small size and low cost, improves efficiency of identification and intelligentization of underwater equipment, and provides theoretical and data support for flow velocity measurement, underwater positioning and obstacle avoidance.
Owner:OCEAN UNIV OF CHINA +1

Slaughtering method comprehensively utilizing giant salamander resources

The invention discloses a slaughtering method comprehensively utilizing giant salamander resources. A giant salamander is subjected to electric shock anesthetization after being temporarily cultured and cleaned, then white mucus on the body surface of the grown giant salamander is lightly scraped by a stainless steel spoon and the mucus is collected in a preservation box and is cryopreserved at the temperature of minus 20 DEG C; after collection of the mucus is finished, the processed giant salamander is soaked and washed with vinegar solution to remove residual mucus colloid, the washed giant salamander is placed on a slaughtering table, the head of the giant salamander is pressed, the head and the trunk are directly cut off and the slaughtered giant salamander is hung upside down to carry out bloodletting; after bloodletting, cutting is carried out, wherein the cutting operation comprises the following steps: (a) cutting off limbs; (b) ripping along the medioventral line to take out internal organs and peeling off livers; (c) flushing the giant salamander with salt water; (d) peeling off the skin; (e) taking out the lateral line and grease of the tail of the giant salamander; (f) separating out spine and coccyx; (g) cutting into meat slices and finally carrying out sterilization, deodorization, packaging and cryopreservation. The slaughtering method disclosed by the invention can sufficiently show edible and medicinal value of each part of the giant salamander.
Owner:CHONGQING KUIXU BIOLOGICAL SCI & TECH

Space curved surface reconstruction method based on boundary constraint

InactiveCN103500468AQuick displayTroubleshoot Horizontal Resurfacing Issues3D modellingTerrainHorizon
The invention discloses a space curved surface reconstruction method based on a boundary constraint. The space curved surface reconstruction method based on the boundary constraint mainly comprises the steps of (1) collecting original horizon data points and fault data points, and drawing a hanging wall polygon and a heading wall polygon; (2) obtaining height attributes, relation attributes and projection attributes of the original horizon data points and points on the fault polygons; (3) carrying out connection on the original horizon data points and the points of the fault polygons through triangle gridding with the constraint; (4) accomplishing splicing of internal areas and external areas of the hanging wall polygon and the heading wall polygon, namely, accomplishing reconstruction of a three-dimensional space curved surface. The space curved surface reconstruction method based on the boundary constraint solves the problem of reconstruction of the horizon curved surface of the complex terrain in the process of three-dimensional geologic modeling, provides a new idea for isoline drawing, geological block forming and the like, can be applicable to various discrete points or lateral line data, and low in requirement for data, can support various faults such as complex terrain structures such as normal faults, reverse faults and vertical faults, and has good adaptability.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Rectifying tower flow controllable type lateral-line extraction combined device

The invention relates to a rectifying tower flow controllable type lateral-line extraction combined device, which is mainly used for the precisely controlled extraction process of gas phase lateral-line products in the rectifying tower. The rectifying tower flow controllable type lateral-line extraction combined device comprises a liquid collecting device, an inserted type condenser, a condensate collecting groove and a demister, wherein the principle of the device is as follows: the liquid and gas are reasonably divided, the phenomenon that the rising gas phase contains the liquid is avoided, and then the rising gas phase is partially condensed into liquid phase by the inner inserted type heat exchange device and is partially laterally extracted. By using the device, the difficulties that the flow is difficult to measure and control when the gas phase lateral-line extraction is performed in the rectifying tower are overcome, and at the same time, the gas phase partially condensation is equivalent to adding a layer of theoretical plate. The device has compact structure, is suitable for the rectifying tower which requires laterally extracting high-purity products in stripping section, and is in particular suitable for the separation process for high vacuum heat-sensitive materials.
Owner:NANJING UNIV

Continuous purification method for crude acetonitrile

The invention provides a continuous purification method for crude acetonitrile. A lateral line condenser is arranged at a third rectifying tower, so that the heat energy of an acetonitrile final product can be adequately recovered, the load of a reboiler at the bottom of the third rectifying tower and the refrigerant quantity of an acetonitrile final product cooler can be effectively reduced, the energy consumption can be saved, and 500-600MJ of energy can be saved for each ton of the acetonitrile product; and distillate is returned from the top of the third rectifying tower, so that the accumulation of oxazole in a system can be reduced, the yield of the acetonitrile can be guaranteed as well, and the problem that the operation load of a first rectifying tower can be obviously increased since all the distillate on the top of the third rectifying tower returns to the first rectifying tower in the prior art can be improved. Furthermore, a corresponding pipeline for adding a polymerization inhibitor is increased on the conventional three-tower and one-kettle refining technology, so that the problem that the exposed devices are easy to polymerize in the existing acetonitrile purification process in China can be solved, and the continuous purification method has the advantages of being high in industrial application value, and high in acetonitrile final product purity.
Owner:CHINA TIANCHEN ENG +3

Method and apparatus for controlling drainage and irrigation of fields

A method of and apparatus for controlling drainage/irrigation of a field includes laying out a network of drainage tiles, which typically may include a main line and a number of lateral lines, extending from higher elevations to lower elevations and exiting through a manually controlled main valve to a drainage ditch.
A series of level-responsive valves are incorporated in the main and lateral lines at selected elevations. Each level-responsive valve is normally open until the ambient water level reaches a predetermined level relative to the valve. When the manual valve is closed and a certain level of water is reached adjacent a level-responsive valve, it causes that level-responsive valve to close, thereby cutting off drainage of higher elevations. When it is desired to retain water at higher elevations in a field, the manual valve is closed permitting water to accumulate and be retained at higher elevations by closing the level-responsive valves in sequence at progressively higher elevations as the level of retained water rises, thereby causing a cascading or “terracing” of water stored at upper levels. When the manual valve is opened, the field drains normally. The level-responsive valve may be a flotation valve. A modification of a flotation type level-responsive valve includes an overflow tube which permits excessive water at higher placement elevations to bypass the closed level-responsive valves, thereby permitting the field to drain under conditions of excess water into a standpipe at the manual valve.
Owner:FURRER BRIAN SCOTT

Method for reducing propylene concentration of dry gas in catalytic cracking device absorption stabilizing system

The invention discloses a method for lowering propylene concentration in dry gas of an absorption-stabilization system of a catalytic cracking unit, which achieves through improving supplement absorbent flow and heat exchanging process in the absorption-stabilization system. The method comprises the following steps: opening a lateral line on a third to a fifth theoretical plate of a stabilizer, producing light gasoline to be supplementing absorbing agent of an absorbing tower, simultaneously canceling the process of the original supplementing absorbing agent to get into the absorbing tower, increasing heat supply of a reboiler in the center of an absorption tower, or heating up deethanization gasoline with diesel oil. The method can obviously lower the concentration of propylene and propane in dry gas, which greatly improves propylene yield rate of the absorption-stabilization system of the catalytic cracking unit, and meanwhile, products are guaranteed, and energy consumption of a device is basically constant. The problem of inadequate heat load of the reboiler in the center of the absorption tower which is caused by flow process alternation is excellently solved through the optimization of the heat exchanging flow. In the whole process, flow reconstruction is simple and feasible, and economic benefit is obvious.
Owner:SOUTH CHINA UNIV OF TECH

Artificial propagation technology for Rhodeus sinensis

The invention relates to the field of Rhodeus sinensis propagation, in particular to an artificial propagation technology. The invention mainly relates to an artificial propagation technology for Rhodeus sinensis. The artificial propagation technology for the Rhodeus sinensis comprises infrastructure equipment, parent fish selection, parent fish temporary rearing, parent fish maturing acceleration, parent fish spawning, ovum pickup and incubation, wherein the parent fish maturing acceleration, the parent fish spawning, the ovum pickup and the incubation are the core of the artificial propagation technology for the Rhodeus sinensis. According to the artificial propagation technology for the Rhodeus sinensis provided by the invention, a square pond of 1 mu or a cement pit of 10-50m<2> is selected, and is equipped with micropores to enhance oxygen. Parent fishes are characterized in that lateral lines are incomplete, and the back upper place of each spiracle of each parent fish has shoulder patches. Male fishes are red in eye socket, and bright in body color; the abdomen of each female fish has a strip ovipositor. 4.5g/l of VC is added to temporary rearing water; before put, the parent fishes are soaked in 5mmg/l of potassium permanganate for 10 minutes; the density of the potassium permanganate is lower than 0.5kg/m<3>, and a toad of 50g is cultivated in every 4m<2> of water to prevent fungal diseases. 10g/kg of minced earthworm meat and spirulina powder is fed. The female-male ratio of the parent fishes is 1:1, oxytocic is injected after the parent fishes are narcotized by 30mg/lMS-222, the ovum pickup is performed by using Sinanodonta woodiana or unio douglasiae which is 8-10cm wide, and the ratio of the Sinanodonta woodiana or the unio douglasiae to the fishes is 2:3. The Sinanodonta woodiana or the unio douglasiae is harvested once every two days, the ovum-contained Sinanodonta woodiana or the ovum-contained unio douglasiae is moved to a hatching pond, and corresponding ovum-free Sinanodonta woodiana or corresponding ovum-free unio douglasiae is supplemented.
Owner:江苏畜牧兽医职业技术学院

Next-door thermal coupling distillation method and equipment for producing polycrystalline silicon

InactiveCN102923714AAchieving Thermally Coupled DistillationReduce energy consumptionChemical industryHalogenated silanesReboilerDifferential pressure
The invention relates to a next-door thermal coupling distillation method and equipment for producing polycrystalline silicon. The equipment comprises a low-pressure next-door rectifying tower, a medium-pressure next-door rectifying tower, a high-pressure next-door rectifying tower, a top tower condenser and a tower kettle reboiler, condensation reboilers are arranged between the two rectifying towers, rear tower top gas phase materials release heat in the condensation reboilers and are condensed into cold fluids to return to a rear tower, and front tower kettle materials absorb heat in the condensation reboilers and return to a front tower after becoming reboiling vapor. Coarse trichlorosilane materials are separated though the three next-door rectifying towers successively, low-boiling-point substances are removed at tower tops, high-boiling-point substances are removed at tower bottoms, and high-purity trichlorosilane products are extracted on the lateral line of the high-pressure tower finally. Compared with traditional distillation processes, a next-door distillation technology and a differential-pressure thermal coupling technology can decrease energy consumption and equipment investment. The next-door thermal coupling distillation method and equipment for producing polycrystalline silicon utilizes the next-door distillation technology and the differential-pressure thermal coupling technology simultaneously, the production cost and the energy consumption are decreased greatly, and distillation energy is saved by about 70%.
Owner:TIANJIN UNIV

Apparatus and method for separating styrene from hydrocarbons mixture

The invention relates to an apparatus and a method for separating styrene from a hydrocarbons mixture. The apparatus comprises an extraction rectifying tower provided with a separation wall, a tower top condenser and a tower top product buffer tank communicated with discharging at tower top, a lateral line condenser and a lateral line product buffer tank communicated with discharging at lateral line, and a reboiler, the separation wall is positioned at central section of the rectifying tower along the axial direction, a top with a closure cap is connected with the side tower wall, the inner part of the extraction rectifying tower is divided into a common rectifying section (1), an extraction rectifying section (2), a common stripping section (4) and a solvent recovery section (3) in order, an inlet for mixing the hydrocarbons raw material is arranged at the extraction rectifying section (2), a solvent inlet is arranged at the bottom of the common rectifying section (1), and the lateral line product outlet is arranged at the upper part of the solvent recovery section (3). The apparatus and method have the advantages that the styrene separation efficiency is high, the apparatus investment is reduced, and the energy consumption is reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1
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