31results about How to "Solve inventory problems" patented technology

The invention provides a production scheduling algorithm for solving a job shop production problem. The algorithm not only solves a problem existing in reasonable resource utilization and scheduling, but also considers constraint condition of an order cycle, so that the algorithm is more accurate and practical. An inventory problem existing in an actual production process is solved, and current inventory limitation is calculated and measured based on average volumes of workpieces, so that the algorithm is relatively practical, high in real-time property, simple and efficient; a calculation way of calculating discovering probability of a foreign bird egg in a cuckoo search algorithm is determined, so that the algorithm is accurate and efficient, and the algorithm is more applicable to an actual production environment; and one of three assumed conditions of the cuckoo search algorithm is broken through: the number of bird nests is unchanged. By considering a condition of increasing number of the bird nests, a processing way of urgency order inserting is set.

A Gamma voltage generation device and a method of generating a Gamma voltage are disclosed. The Gamma voltage generation device comprises a plurality of digital to analog conversion units, a resistor string and a plurality of selection units. The plurality of digital to analog conversion units generate a plurality of curve reference voltages. The resistor string comprises a plurality of resistors which are connected in series so as to provide a plurality of end points. Parts of the end points are set to be a plurality of curve turning intervals. Each selection unit corresponds to each digital to analog conversion unit and each curve turning interval respectively. Each selection unit selectively provides each curve reference voltage to one end point of the corresponding curve turning interval.

The invention relates to a molding process of a PE-RT pipeline. The process comprises a PE-RT pipe extrusion molding process and a joint injection molding process on the PE-RT pipe, wherein the PE-RT pipe extrusion molding process comprises the following steps of: preparing materials; performing extrusion molding on the PE-RT pipeline by using an extrusion machine; sizing in vacuum; performing traction and conveying; cutting the PE-RT pipeline into a predetermined size and entering a location area. The joint injection molding process on the PE-RT pipeline comprises the steps: locating, namely, enabling a core of a rotating mechanism positioned on a rotary disc to penetrate through the PE-RT pipeline; pre-heating of a joint area, namely, driving the PE-RT pipeline to rotate to a hot air mechanism by virtue of a rotating mechanism, and melting the PE-RT pipeline joint area to a high-elastic state by virtue of the hot air mechanism; injection molding of the joint, namely, driving the PE-RT pipeline to rotate to an injection mould by virtue of the rotating mechanism, closing the injection mould, and performing injection molding of the joint in the PE-RT pipeline joint area; ejection, namely opening the injection mould, driving the PE-RT pipeline to rotate to an ejection mechanism by virtue of the rotating mechanism, and ejecting the PE-RT pipeline by virtue of the ejection mechanism. According to the molding process of the PE-RT pipeline, the integration production of pipe molding and plastic connection molding is realized, the binding force of plastic pieces is increased, and the production efficiency is effectively improved.

The invention relates to a preparation method of an environment-friendly washing ball water-soluble film, which belongs to the technical field of biomass packaging materials. The water-soluble film adopting water-soluble film using thermoplastic starch as a base material to wrap high-concentrated washing liquid into washing balls, and a small washing ball has twice cleaning capacity and is equal to an amount for cleaning a barrel. The emergence of the washing ball meets the requirements of the market and users, and the washing ball not only can achieve a cleaning and sterilizing washing effect by virtue of water molecular activation, but also can enable consumers to be away from chemical products and can ensure the body health of the consumers. Meanwhile, the washing ball has no chemical residue and can greatly reduce the environmental pollution caused by the chemical lotions.

The invention relates to environmentally-friendly digital inkjet textile printing ink with reactive dye and a preparation method thereof, and the ink is a composition formed by the following components by weight percent: 12-90.6% of deionized water, 5-40% of wetting agent, 0.2-5% of surface active agent, 0.1-2% of pH regulator, 0.1-1% of disinfectant, 1-10% of softener and 3-30% of the reactive dye. The preparation method comprises the following steps: placing all the components into a stirring container sequentially, stirring, and then using a filter membrane to perform filtration many timesso as to prepare an ink finished product. The ink can be combined with cotton, wool and silk textiles without surface treatment under the conditions of being salt-free and alkali-free completely, thereactive dye is not hydrolyzed completely during the dyeing process and the storage process, the dyeing rate is high, the ink can be stably stored for a long time, the dyeing without waste water emission is realized, and the water consumption and the pollution of printing with the reactive dye are reduced.

An embodiment of an apparatus for downloading and / or executing programs from a tool resident on a computer host is disclosed. The apparatus comprises an external flash memory storing a program, and a processor for validating the tool when detecting that the computer host connects to the apparatus. The processor permits the computer host to update the program of the external flash memory after determining that the tool has been successfully verified.

The invention discloses an edible packaging film, and a preparation method and application thereof, and belongs to the technical field of packaging materials. The edible starch-based packaging film comprises, by mass, 60-80 parts of hydroxypropyl starch, 15-20 parts of plasticizers, 5-15 parts of deionized water, 1-5 parts of crosslinking agents, 1-5 parts of reinforcing agents and 1-5 parts of antibacterial agents. The edible packaging film has the advantages that a hot pressing method is applied to prepare the edible starch-based packaging film, and the film has high mechanical property, flexibility and water vapor transmission rate, short water dissolution time and high oxygen permeability; the edible packaging film is made of water-soluble food and used as a packaging material for seasoning packages; the seasoning packages can be directly cooked together with other ingredients, so that traditional petroleum-based plastic packaging films are replaced, the ecological environment pollution is reduced, and demands of modern people for quickness and convenience in operation of fast food are met.

The invention provides a tray counting method based on a storage shuttle vehicle, and the method comprises the following steps: starting the shuttle vehicle, and enabling the shuttle vehicle to enter a uniform-speed motion state; photoelectric sensors are arranged on the front side and the rear side of the shuttle vehicle bearing surface correspondingly, and the controller processes photoelectric signal feedback of the front photoelectric sensors and the rear photoelectric sensors to obtain the number of trays. The beneficial effects of the invention are that the method achieves the accurate and quick checking of the goods, effectively achieves the checking of the goods of an intensive storage rack, and greatly improves the checking efficiency.

The invention discloses a method for extracting citronellal from Litsea cubeba oil front distillate. The method comprises: (1) pouring Litsea cubeba oil front distillate into a reaction container, controlling the temperature of the reaction system at 5-15 DEG C, adding a NaHSO3 aqueous solution in a dropwise manner, and carrying out an addition reaction on the NaHSO3 aqueous solution and the aldehyde ketone in the Litsea cubeba oil front distillate to obtain a solid product insoluble in the Litsea cubeba oil front distillate; (2) separating the solid product obtained in the step (1), adding anextractant, adding an acid solution in a dropwise manner, heating to a temperature of 68-72 DEG C under stirring, carrying out a reflux reaction, carrying out standing layering after completing the reaction, washing the organic layer, and drying to obtain citronellal crude oil; and (3) pouring the citronellal crude oil obtained in the step (2) into a rectification tower, and rectifying in three stages to respectively obtain methylheptenone, citronellal and citral. According to the present invention, the method has advantages of convenient operation, low cost, high efficiency and high productpurity, and can co-produce methylheptenone and citral.

A gamma voltage generating device and a method for generating gamma voltage. The gamma voltage generating device includes a plurality of digital-to-analog conversion units, a resistor string and a plurality of selection units. Multiple digital-to-analog converting units generate multiple curve reference voltages. The resistor string includes a plurality of resistors connected in series to provide a plurality of endpoints, and some of the endpoints are set as a plurality of curve turning intervals. Each selection unit corresponds to each digital-to-analog conversion unit and each curve transition interval, and each selection unit selectively provides each curve reference voltage to one end point of the corresponding curve transition interval.

The invention discloses a method for counting books on a shelf based on image segmentation and random hough conversion, and belongs to the technical field of library management. First, according to edge pixel accumulation of an image, frame information is extracted, then the image is divided into multiple sub-images, and each sub-image represents a book spine image in a placement lattice on a shelf; then, through random hough mapping, rapid accumulation of book boundary straight lines in the sub-images is achieved in parameter space; finally, a local peak value is detected in the parameter space, in this way, the number of books in each placement lattice on the shelf is counted, and finally the number of all the books on the shelf is obtained. Advantages of image processing and advantages of random hough conversion are combined well; a computer is utilized for automatically counting the books on the shelf; the method is simple, efficient and easy to implement, greatly reduces the workload of book counting, and has high practicability and application and popularization value.

The invention relates to a preparation method of an environment-friendly washing ball water-soluble film, which belongs to the technical field of biomass packaging materials. The water-soluble film adopting water-soluble film using thermoplastic starch as a base material to wrap high-concentrated washing liquid into washing balls, and a small washing ball has twice cleaning capacity and is equal to an amount for cleaning a barrel. The emergence of the washing ball meets the requirements of the market and users, and the washing ball not only can achieve a cleaning and sterilizing washing effect by virtue of water molecular activation, but also can enable consumers to be away from chemical products and can ensure the body health of the consumers. Meanwhile, the washing ball has no chemical residue and can greatly reduce the environmental pollution caused by the chemical lotions.