36results about How to "Valid set" patented technology

The invention discloses a plasma micro-dust purifier comprising an AC-DC (Alternating Current-Direct Current) converter, an EMI (Electro-Magnetic Interference) filter, a high-frequency generator, a voltage-multiplying line and a purifying device, wherein the AC-DC converter is respectively connected with the EMI filter and the high-frequency generator through a line; the high-frequency generator is connected with the voltage-multiplying line through a line; the voltage-multiplying line is connected with the purifying device through a line; the high-frequency generator is connected with a control line through a line; and the control line is connected with the lines of the AC-DC converter and the high-frequency generator. The plasma micro-dust purifier disclosed by the invention has the advantages of being free from light, noises and ozone, and capable of enhancing space negative ions through non-self-maintained discharge, can effectively collect and adsorb PM2.5 (Particulate Matter 2.5) micro-dust, reduces the indoor concentration to meet the national standards and improves an indoor environment; and the negative ions are released so as to improve the immunity of a human body.

A method for merging memory pages (130) and a memory merging function "MMF" (110) are disclosed. The hardware system (100) includes a set of storage blades (105, 105, 107) and a set of compute pools (102, 103, 104). At least one instance of an operating system (120) executes on the hardware system (100). The MMF (110) is independent of the operating system (120). The MMF (110) looks up (A010) the first and second memory pages (131, 132). The first and second memory pages (131, 132) contain the same information. The first and second memory pages are associated with at least one computing unit (140) of the computing units (140). The MMF (110) obtains (A020, A030) the corresponding memory blade parameters related to the memory blades of the first and second memory pages (131, 132) and the parameters for accessing the first and second memory pages (131, 132) The corresponding wait time parameter for waiting time. The MMF (110) frees (A050) at least one of the first and second memory pages (131, 132) based on the respective memory blade and latency parameters. A corresponding computer program and its carrier are also disclosed.

The invention discloses a double-station numerical control machining center which comprises a main machine tool component and an upper discharging component, wherein the upper discharging component comprises two material storing shelf components, two feeding mechanisms, two discharging mechanisms and two material clamping mechanisms symmetrically mounted on a mounting frame at the left side and the right side for forming the material storing, feeding, clamping and discharging function; a structure on a pedestal component is used for adjusting the distance of the mounting frame and used for offering the power output for feeding and discharging operation; the main machine tool component can be driven by the motor lead screw driving mechanism for moving in X axis direction, two Y axis components are mounted on the X axis mobile pedestal and driven by the motor lead screw driving mechanism for moving in Y axis direction; two Z axis components are respectively fixed at the ends of two Y axis components, and rotating shaft components are mounted on the Z axis moving plate; the AB rotating shaft components are connected with the an electric main shaft in a driving mode, and the electric main shaft is four-end electric main shaft; four cutters are arranged on each of two four-end electric main shaft, and eight different cutters are used for processing the wood.

The invention provides an ergonomic input device. The device comprises an input module, a signal detection module, a signal processing module and a Bluetooth module. The input module is composed of aplurality of keys, the signal detection module detects a signal of the input module and transmits the signal to the signal processing module, the signal processing module has a memory storage function, the signal processing module receives the signal sent by the signal detection module, and the Bluetooth module transmits the signal of the signal processing module to an equipment terminal. The device is suitable for being held and operated by a single hand, and a keyboard does not need to be observed at any time during the operation process, and the retention of canonical gestures is not required.

The invention provides a prefabricated part plane round hole extraction method based on point cloud data. The method comprises the steps of inputting point cloud data, acquiring a list of edge points,fitting a round hole, correcting the radius of the round hole and the like. The method is advantageous in that the reverse modeling of the round hole of the prefabricated part is used to effectivelyreduce a large amount of human intervention in the traditional reverse modeling work, and technical support is provided for the non-contact detection and the round hole reverse modeling of the prefabricated part.

The present invention discloses an electronic device having a display, optionally a touch-sensitive surface, that obtains a collection of media items. In some embodiments, the apparatus determines one or more patterns in the set based on a comparison between attributes of sequentially adjacent items, and divides the set into a plurality of multi-item events event. In some embodiments, the device receives a first request to display a first portion of the collection organized according to a first level of granularity, and in response to the first request, displays a first plurality of the items express. The device receives a second request to display a second portion of the collection organized according to respective overview granularity levels corresponding to a plurality of detailed granularity levels, and displays a second most of the items in response to the second request. a representation.

The invention discloses a filtration and oxygen supply device for an ecological aquarium, which combines the functions of filtration circulation and oxygen supply and comprises a holder box, a water pump, a filter box, an oxygen pump, an air intake pipe and an air guide pipe. The filtration and oxygen supply device is characterized in that the holder box is accommodated in the aquarium; a plurality of holder box gate holes are arranged on the wall of the holder box; the water pump is arranged at one side of the holder box and the filter box is arranged at the other end of the holder box; an air inlet and a water pump power line inlet are arranged on the soleplate of the holder box; the lower end of the air inlet is communicated with the oxygen pump through the air intake pipe, and the upper end of the air inlet is communicated with an air outlet through the air guide pipe; an air flow one-way valve is arranged between the air guide pipe and the air outlet; and an oxygen filtering cover is arranged at the outer side of the air outlet. The embodiment of the invention can effectively combine the functions of filtration circulation and oxygen supply, is low in cost and energy consumption, high in safety and environment friendliness, and makes the aquarium neater, more attractive, easier to clean, more optimized in internal living and viewing environment and better in visual effect.

The invention discloses an image retrieval method based on semantic mapping space construction. The image retrieval method is characterized by comprising the steps of (1) learning semantic mapping space, (2) estimating a semantic concept of each image which is not labeled, (3) conducting ascending sorting on the images corresponding to the semantic concepts in the semantic space, (4) inputting text search terms to be retrieved, and returning the images corresponding to the semantic concepts. According to the image retrieval method, the image retrieval accuracy can be effectively improved.

The invention discloses a property intelligent residential district management system and management method. The property intelligent residential district management system includes an equipment and data management subsystem, a virtual agent subsystem, an equipment agent module and electronic equipment, wherein the equipment and data management subsystem is used for equipment registration and data registration of the electronic equipment; the electronic equipment is linked with a server according to the equipment and data registration content; the virtual agent subsystem is used for virtualizing one party interconnected with the server, the network equipment and the management staff as electronic equipment, and completing equipment and data registration and transmission-reception and storage of data through the equipment and data management subsystem; and after non-network electronic equipment is connected with the equipment agent module, the non-network electronic equipment accesses a residential district server through the equipment and data management subsystem to complete equipment and data registration and transmission-reception and storage of data. The property intelligent residential district management method includes the steps of equipment and data management, virtual agent and equipment agent. The property intelligent residential district management system has the advantages of compatibility and sharing of data, high intelligent degree, high management efficiency, low operation cost and easy maintenance.

The invention discloses a core-shell SERS (surface enhanced Raman spectroscopy) probe, a method for preparing the same and application of the core-shell SERS probe to trace arsenate ion detection, and belongs to the technical field of drinking water safety detection. The method includes the steps: concentrating 5-20 mL of citrate-stable precious metal nano-particle colloidal solution by the aid of centrifugal separation processes until the volume of the citrate-stable precious metal nano-particle colloidal solution is 1.5-3% of the original volume of the citrate-stable precious metal nano-particle colloidal solution so as to obtain concentrated solution; dispersing the obtained concentrated solution into 2-5 mL of organic alcohol solvents, sequentially adding 0.5-2 g of sodium acetate and 0.01-0.05 g of iron salt into the organic alcohol solvents, then strenuously stirring the sodium acetate, the iron salt, the concentrated solution and the organic alcohol solvents and completely dissolving reactants to obtain mixtures; carrying out hydrothermal reaction on the mixtures under the condition of the temperature of 180-250 DEG C for 8-18 h to obtain precious metal @Fe3O4 core-shell nano-particles. The core-shell SERS probe, the method and the application have the advantages that physical and chemical characteristics of precious metal cores and Fe3O4 shell layers can be effectively integrated on the core-shell SERS probe, and arsenate ions can be adsorbed by the Fe3O4 shell layers and accordingly can be effectively enriched on the surface of precious metal; the limit of detection of the arsenate ions of the core-shell SERS probe can be obviously lowered, and the core-shell SERS probe and the method can have important application prospects in the field of drinking water safety detection owing to magnetic separation and desorption recycling.