51results about How to "Improve low utilization" patented technology

The invention provides a parking lot management system and a parking lot management method thereof for a residential district. The parking lot management method includes steps of S01), license plate information collection; S02), license plate identification classification; S03), accessing judgment; S06), parking space information collection; S07), parking space information statistics; S08), parking space information prompt. The parking lot management system comprises a main control module, a license plate information collection module, a parking space information collection module and a free-parking-space prompt module, the license plate information collection module, the parking space information collection module and the free-parking-space information collection module are respectively connected with the main control module, the license plate information collection module collects license plate number information of vehicles in and out of a parking lot, the main control module identifies license plate classification, judges whether the vehicles are outside vehicles or not, comparatively analyzes whether the time period is for entering of the outside vehicles or not and whether free parking spaces are available or not and judges whether to allow the vehicles to enter the parking lot or not. By the parking lot management system and the parking lot management method thereof, problems that utilization rate of the parking lot is low and the parking lot idles while the outside vehicles have nowhere to park can be solved, and normal parking of ordinary vehicles in the residential district is unaffected.

The invention discloses a method of transmitting a signal of a time division duplex system and a frame structure used thereof, pertaining to the mobile communication field. The transmitting method includes that within the time length of a half-frame of wireless frames, the base station transmits signal on a downlink special time slot, thereafter does not transmit signal on a protective gap (GP), and then receives signal on an uplink special time slot; all time lengths of other uplink and downlink normal time slots for transmitting signal are equal, the total time length of the downlink special time slot, the protective gap and the uplink special time slot is integer times of the time length of an uplink or downlink normal time slot. The invention also discloses a frame structure of the time division duplex system. The invention allows allocating flexibly the duration of the protective gap, and ensures no big interference on the uplink receipt of other base stations even if synchronoussignals are uprated in power; besides, the invention enhances the usage rate of the system.

The invention provides an anti-oxidative peptide and a preparation method thereof. The preparation method comprises the steps of performing zymolysis, separation and purification on acid protease by using sea cucumber meat or sea cucumber visceral protein as the raw material to obtain the specific anti-oxidative peptide. The complete sequence of amino acid is gavlgty. The anti-oxidative peptide disclosed by the invention makes up the defects of natural antioxidants, reduces anxiety of the public about artificially synthesized antioxidants, and lays the foundation for developing the anti-oxidative peptide based on a food source and widely applying the anti-oxidative peptide based on the food source to foods and medicine.

The invention provides an antioxidative peptide and a preparation method thereof. The method is used for obtaining the specific antioxidative peptide from chlorella protein as the raw material by virtue of enzymolysis of an acid proteinase, separation and purification; the amino acid complete sequence of the specific antioxidative peptide is aetiglap. The shortcomings of a natural antioxidant are overcome and the worry of the public on an artificially synthetic antioxidant is eliminated, and a foundation is laid for developing the antioxidative peptide based on food sources and exploring the wide application of the antioxidative peptide in foods and medicines.

The invention provides a holothurian antioxidative peptide and a preparation method thereof. The preparation method comprises the following steps: taking holothurian meat or holothurian internal organ protein as a raw material, conducting enzymolysis to acid proteinase, and carrying out separation and purification to obtain a specificity holothurian antioxidative peptide, the amino acid complete sequence of which is kvlltflvv. The holothurian antioxidative peptide prepared by the preparation method disclosed by the invention makes up the defect of the natural antioxidant, eliminates worry of the public to the artificially synthesized antioxidant, and establishes a foundation for developing the food source based antioxidative peptide and exploring the wide application of the peptide on food and medicine.

The invention relates to a long-service-life high-specific-energy maintenance-free starting lead-acid storage battery and a production method thereof. According to the battery, lead plasters coated atthe upper portion and the lower portion of a grid of at least one of a positive electrode plate and a negative electrode plate are different, and the conductivity or the utilization rate of the leadplaster at the lower portion of the grid is superior to that of the lead plaster at the upper portion of the grid. According to the invention, the upper portion and the lower portion of an electrode plate adopt different formulas and are respectively coated and filled, wherein the acid content of the lead plaster at the lower portion is different so as to reduce that the apparent density of the lead plaster or the conductive substance content of the lead plaster at the lower portion is different so as to improve the utilization rate, so that the problem of low utilization rate of the active substance at the lower portion is effectively improved, and the capacity of the battery is improved; the internal resistance of the lower portion is reduced, and the utilization rate is improved, so that the problem of high proportion of upper discharge capacity is slowed down, wherein the upper discharge capacity of the electrode plate is reduced and the discharge rate is reduced under the condition of the same discharge capacity, so that the softening and falling of the active substance are reduced, and the service life of the battery is prolonged; and under the condition of the same paste coating amount, the capacity, the low-temperature discharge performance and the cycle durability of the prepared battery are improved.

The invention relates to a power network, a control system thereof, a control method and a network dispatching device and belongs to the power field. The objective of the invention is to solve the problem of low utilization ratio of energy generation devices caused by the satisfaction of the balance of supply and demand of grid-connected microgrids or the large demand of the grid-connected microgrids for a power grid in the prior art. The control method includes the following steps that: N microgrids are provided, wherein N is equal and larger than 2, and each microgrid comprises a voltage transformation device, a first busbar, a second busbar, an energy generation device, a load and a connection line, wherein the connection line is provided with a connection line switch, wherein the connection line switch is used for controlling the connection or disconnection of connected microgrids; and the N microgrids are divided into M microgrid groups, the microgrids in each group are communicated with one another through the connection lines, at least one microgrid in each microgrid group is connected with a power grid power supply line through an access switch at a point of common coupling (PCC), and only one access switch in each group is communicated with the power grid power supply line, wherein M and N satisfy the relational expression that 1<=M<=N.

The invention relates to a material transportation flow line system on the basis of linear motor drive. The material transportation flow line system comprises a material transportation system and a PID (proportion, integration and differentiation) control system. The PID control system is used for controlling the material transportation system, the material transportation system comprises a track, a linear motor transportation system and photoelectric switches, the linear motor transportation system is arranged on the surface of the track, and the photoelectric switches are arranged on the side surfaces of the linear motor transportation system; the linear motor transportation system comprises supports, linear motor primary components, trolleys, track side edges, wheels and rib columns, the linear motor primary components are arranged inside the supports, the trolleys are arranged at the lower ends of the linear motor primary components, the track side edges are arranged at the upper end and the lower end of the track, the wheels are arranged inside the trolleys, and the rib columns are arranged on the side surfaces of the wheels.

The invention provides a method of extracting and separating catalytic cracking slurry oil. The method comprises the step of adopting a polar non-proton solvent to conduct secondary extraction on the catalytic cracking slurry oil. According to the method of extracting and separating the catalytic cracking slurry oil, the catalytic cracking slurry oil is divided into a saturated hydrocarbon component, an aromatic hydrocarbon component and a colloid component through the secondary extraction, the current condition of low use ratio of the catalytic cracking slurry oil is improved, the catalytic cracking slurry oil is divided into multiple components selectively and is utilized hierarchically so that a subsequent processing scheme can be selected with pertinence, and the method is conducive to improvement of additional value of a product; besides, sulfur, nitrogen and heavy metal components can be removed in the aromatic hydrocarbon component to some extent, and catalyst poisoning, or coking requirements of a device and the like in the subsequent processing process are avoided.

The invention provides anti-oxidative seaweed polypeptide and a preparation method thereof. According to the method, by enzymolysis of acid proteinase, seaweed protein is taken as a raw material to be separated and purified to obtain specific anti-oxidative polypeptide of which the complete sequence of amino acids is avvkeagdacf. The anti-oxidative seaweed polypeptide disclosed by the invention has the advantages of eliminating defects of natural antioxidants, also eliminating worries of publics on artificial synthesis of antioxidants, and laying the foundation for developing the anti-oxidative polypeptide based on a food source and exploring wide application of the anti-oxidative seaweed polypeptide in foods and medical science.

Embodiments of the present invention disclose power network control methods and system, and devices, relating to the field of electricity and aiming to solve a problem in the prior art that the use ratio of capacity equipment is low due to balance of supply and demand of a grid-tied micro-grid or the grid-tied micro-grid has a high demand for the power grid. A power network comprises N micro-grids. Each micro-grid is connected with at least one of the other micro-grids of the N micro-grids by using a contact line. The contact line is provided with a contact line switch. The N micro-grids are divided into M micro-grid groups. Micro-grids of each group are communicated with each other by using contact lines. Each micro-grid group is communicated with a power grid power supply line by using a point of common coupling (PCC). For each micro-grid group, a network scheduling device acquires a permitted power operating range of each micro-grid of the micro-grid group, and the permitted power operating range of each micro-grid is sent to a micro-grid control device of the micro-grids, so that the micro-grid control device controls a real-time power of a micro-grid tied point to be within the permitted power operating range.

The invention discloses a magnetron sputtering device. The magnetron sputtering device comprises a base table, a target material, a sputtering cavity and a magnetic field regulator. The sputtering cavity is used for sealing the base table, the target material and the magnetic field regulator, the magnetic field regulator comprises a first cavity, at least two magnets and a magnet spacing control module, the at least two magnets are arranged in the first cavity, and the magnetic poles of the tops of the two magnets are opposite. The magnet spacing control module is connected with the two magnets and controls the spacing change between the two magnets. The magnet spacing control module controls one or two of the two magnets to move so as to change the distance between the two magnets, so that the size of a magnetic field between the two magnets is continuously changed. The magnetic field between the two magnets is continuously changed by continuously changing the distance between the magnets, so that the problems that the sputtering amount in the middle area of the target material is small, and the overall utilization rate of the target material is low are solved.

The invention relates to anti-oxidization bone collagen polypeptide and a preparation method thereof, aiming at solving the technical problems of an existing product that the source is single and theimmunogenicity exists. An amino acid sequence is shown as a sequence table 1. The invention also provides a preparation method of the anti-oxidization bone collagen polypeptide; collagen is extractedby taking tuna bones as a source; then the collagen is subjected to enzymolysis by adopting a tyrisin-chymase complex enzyme and then is separated and purified, and frozen and dried to obtain the anti-oxidization bone collagen polypeptide. The anti-oxidization bone collagen polypeptide can be used for the field of preparation of the anti-oxidization polypeptide.

An embodiment of the invention discloses a power network, and a control method, devices and a control system of the power network, which relate to the field of power, and used for solving the problem of low utilization efficiency of energy production equipment caused by the purpose of satisfying balance between supply and demand of a grid-connected microgrid or the problem of great demand of the grid-connected microgrid for power grids in the prior art. The control method adopts N microgrids, wherein each microgrid comprises a first bus and a second bus which are connected through voltage transformation equipment, and the first bus is used for connecting energy production equipment and a load; the second bus in each microgrid is connected with the second bus of at least one other microgrid of the N microgrids through a connecting line, the connecting line is provided with a connecting line switch, and the connecting line switch is used for controlling the connected microgrids to connect or disconnect; and the N microgrids are divided into M microgrid groups, the microgrids in each group are connected through the connecting lines, each microgrid group is connected with a power grid power supply line through a public connection point PCC, and the first bus of at least one microgrid in the N microgrids is connected with a charging pile.

The invention particularly relates to a garden type ecological floating island for in-situ upgrading and reconstruction. The garden type ecological floating island comprises a gas collecting and releasing device, a floating island frame, a filler area, filler, a plant planting area, emergent aquatic plants, a self-control rotation control system and a motor. The ecological floating island is provided with the gas collecting and releasing device, so that the loss of dissolved oxygen is reduced; the ecological floating island is provided with the filler area, so that the sludge concentration of the system is increased, the utilization rate of dissolved oxygen is increased, and the removal rate of organic matters and nitrogen is increased; the automatic rotation control system of the ecological floating island can relieve the blockage problem; and the upper part of the floating island is the emergent aquatic plant planting area for absorbing organic matters and nitrogen in sewage, and meanwhile, the effects of beautifying and deodorizing the oxidation ditch are achieved.

The invention relates to the technical field of wastewater treatment, in particular to a three-dimensional electrode reaction device and a method for removing COD in wastewater. The three-dimensional electrode reaction device comprises a tank body, a plurality of particle electrodes and a plurality of photocatalytic fillers; each particle electrode and each photocatalytic filler are arranged in the tank body, and each particle electrode and each photocatalytic filler are arranged at an interval, so that the plurality of particle electrodes are not in contact with each other. Insulating particles between the particle electrodes are replaced with the photocatalytic fillers, so that the problem that the utilization rate of an electrochemical reactor is low due to the insulating particles can be solved, meanwhile, the photocatalytic fillers can further conduct photocatalytic reaction, then the photocatalytic technology and the electrochemical technology are coupled, and by utilizing the photoelectric synergistic effect, pollutants in the industrial wastewater are subjected to an oxidation-reduction reaction in the reactor to be degraded, the target of '1+1>2' is achieved, and COD in the industrial wastewater is efficiently removed.

An adjustable multi-point progressive flanging forming device and method, comprising: a pressing mechanism arranged in sequence from top to bottom, a flexible spring washer assembly, a plurality of stacked adjustment rod assemblies, and a six-degree-of-freedom working end for forming, Wherein: one end of the to-be-formed part is arranged between the pressing mechanism and the flexible spring washer assembly, the flexible spring-cushion assembly envelops the outer surface formed by one side of the stacked adjusting rod assembly, and the six-degree-of-freedom working end is located on the outer side of the to-be-formed part. It undergoes bending deformation. The invention changes the change of the curvature of the die surface by adjusting the expansion and contraction of the adjusting rod assembly until the shape of the preset curved surface of the part to be formed; the coordinated control between the adjusting rod assemblies of the present invention realizes the change of the curvature of different die surfaces, and realizes the completion of the same platform. Flange forming of materials of different sizes.

The invention discloses a brewing technology of cherry tomato vinegar, which includes: 1) drying and crushing cherry tomatoes; 2) freezing the cherry tomatoes; 3) performing enzymolysis; 4) regulatingcomponents; 5) pasteurizing the components; 6) alcohol fermentation: adding a standby liquid and yeast in an anaerobic fermenting tank to perform alcohol fermentation for 30-40 days, wherein during the fermentation, a gas mixture of N2 and CO2 is fed continuously, thus preparing a fermented liquid with alcohol degree being 4-6%; 7) acetic acid fermentation: placing the fermented liquid in anotheranaerobic fermenting tank, adding acetic acid bacteria, performing anaerobic fermentation for 30-45 days, thus obtaining the cherry tomato vinegar; 8) blending and filtering the cherry tomato vinegarand storing the product in bottles. The method can fully utilize the cherry tomatoes, wherein internal structure of cherry tomato skin is improved and the character and fragrance of the cherry tomatovinegar are definitely improved. The high-quality cherry tomato vinegar has mellow and abundant taste and has extensive market promotion value.