32results about How to "Capacity control" patented technology

A scroll fluid machine includes a stationary scroll having a spiral wrap formed on an end plate and a moving scroll having a spiral wrap formed on an end plate. A polymer actuator for adjusting the amount of space between the wrap and the end plate is disposed in a recess formed at a tip of the wrap. The polymer actuator changes its shape along a height of the wrap to adjust an amount of the space. The polymer actuator also functions as a seal between the end plate and the wrap. The recess is formed such that a wall of the recess including an inner circumference surface of the wrap has a thickness different from that of a wall of the recess including an outer circumference surface of the wrap.

The invention discloses a prussian-blue type sodium ion battery positive electrode material and a preparation method therefor. According to the material, iron ions in iron-nitrogen octahedron in prussian-blue crystal lattices are substituted by transitional metal elements from the interiors to the surfaces of crystal particles based on concentration gradient; the molecular formula of the positive electrode material is Na<x>M<y>Fe<1-y>[Fe(CN)<6>]<z>.nH<2>O, wherein M is a substituting element. The preparation method comprises the following steps of dissolving sodium ferrocyanide, ferrous chloride, and a mixture of substituting element chloride and ferrous chloride into deionized water separately to obtain each precursor solution; then performing a co-precipitation reaction to obtain a prussian-blue turbid liquid, wherein the substituting element is distributed from the interiors to the surfaces of the crystal particles based on concentration gradient; and performing centrifuging, washing and vacuum drying to prepare the positive electrode material. The positive electrode material has the characteristics of high capacity, high cycling stability, simple preparation and the like.

A heat pump is provided with a component that has a pulse width modulation control to adjust system capacity. Thus, by utilizing a pulse width modulation technique to control this component, the present invention is able to closely tailor the delivered capacity of the heat pump to that which is demanded, without cycling the unit. In one embodiment, the component has a suction pulse width modulation valve. In another embodiment, the component which is modulated is the compressor pump unit, and, in particular, a pair of scroll members that are allowed to move into and out of contact with each other. The pulse width modulation control device can also be utilized in combination with a heat pump having an economizer function and / or an unloader function.

The invention discloses a method and system for controlling the capacity of transformer substations of an initiative power distribution network. On one hand, the uncertainty of loads is considered, and the power distribution network dispatching participating degrees of the loads in total loads of the power distribution network are analyzed; on the other hand, contribution conditions of distributed energy resources in the power distribution network are considered, trusted contribution values of the distributed energy resources in the power distribution network are calculated, the total capacity of the transformer substations in the planned year is calculated according to the maximum load predicated value of the power distribution network and the trusted contribution values of the distributed energy resources in the power distribution network, and the capacity of the transformer substations of the power distribution network is further controlled according to the total capacity of the transformer substations in the planned year. In the whole process, the uncertainty of the loads and the contribution conditions of the distributed energy resources are sufficiently considered, the accuracy of the calculating result of the total capacity of the transformer substations in the planned year is guaranteed, the capacity of the transformer substations of the power distribution network can be accordingly and accurately controlled, and effective use of the resources and safe operation of the power distribution network are guaranteed.

The invention discloses an energy-saving and environment-friendly seeding device capable of automatic watering, which comprises a box body, a transparent plate and a buffer strip. A trough, a water storage tank is provided inside the left end of the box, and a transparent plate is arranged above the water storage tank, and the transparent plate is fixedly installed on the top surface of the box body, and a water inlet is provided above the left end of the water storage tank, and A water outlet is provided below the left end of the water storage tank, a partition is provided below the discharge tank, and the partition is located inside the box body, and a water storage tank is provided below the water outlet. The energy-saving and environment-friendly seeding device with automatic watering, when sowing the seeds, the seeds first flow from the inside of the storage tank through the discharge tank into the inside of the feed hole, which is convenient for controlling the number of seeds each time. , to avoid excessive loss of seeds during the long-term sowing process.

The invention relates to a method for the service of reminding ticket checking and equipment thereof and a ticket management system, wherein, the method includes the steps of collecting the serial numbers of tickets and movable termination marks of users; recording the serial numbers of the tickets and correspondingly recording the movable termination marks; collecting the information of ticket checking tempo; generating the information of service reminding according to the information of ticket checking tempo and the serial numbers of the tickets; and sending the information of service reminding to the movable termination to which the serial numbers of the tickets correspond. The equipment comprises a collection module, a management module for electronic orders, an interface module for aticket checking system, a generation module for reminding service information and an interface module for the users. The ticket management system comprises one or more equipment for the service of reminding ticket checking, corresponding modules for the ticket checking system, the movable termination and communication network. The invention sends the information of reminding the ticket checking tempo to the movable termination of the users in time so as to prevent the users from blindly queuing for ticket checking and is also in favor of the control of outdoor tourist attraction of scenic spots, etc.

The invention discloses a circuit board reliability evaluation method, which combines multiple important reliability tests in the circuit board processing technology on one reliability test circuit board and completes it through one processing process. The more important reliability evaluation includes The material test of the circuit board base material, the test of the circuit reliability and mechanical performance reliability of the processed circuit board in an extreme environment, etc., etc., the present invention can scientifically and accurately make accurate judgment and identification of product reliability, and has the advantages of The operation is simple, the design is reasonable, the capacity is controlled, the manufacturing cost is low, and the effect is obvious.

The invention proposes a lossless information hiding method based on data difference, which can realize high-capacity lossless information hiding in various types of data (such as image data). Its characteristic lies in that the method hides the secret information and the difference value in the data for transmission by joint encoding, and the receiving end can completely restore the secret information and the original data. This method only performs information hiding in half of the original image data, and jointly hides information in the other half of the data. The receiving end corrects the difference to restore the original data, breaking through the limitations of the traditional least significant bit data compression method. , at the cost of difference encoding, the lossless information hiding capacity is increased. For general data, the lossless hiding capacity is between 1 / 16 and 7 / 16, and it has a certain anti-compression and anti-noise ability.