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95results about How to "Improve efficient utilization" patented technology

LED three-dimensional optical system design method and optical system with given luminous intensity distribution

The present invention discloses an LED three-dimensional optical system design method with given illumination distribution and an optical system, which belongs to the non-imaging optical technique of the applied optics field. A three-dimensional non-imaging optical system is formed in a region which has given illumination distribution, by using a light emitting diode as a light source. A three-dimensional lens is designed with the optical system. According to the geometrical shape of the given illumination distribution region, complying with the law of conversation of energy, the surface of the light source and the illumination plane are divided into corresponding energy regions on the long axis direction of the region in accordance with optical refraction, and energy division is carried out in the short axis direction in accordance with the principle of common function of total internal reflection and refraction. The coordinates and the normal vectors of all feature points of the optical system surface of the light source along the long axis direction and the short axis direction are calculated according to the energy corresponding relationship, so as to determine the optical system surface. The method and the system contribute to sufficiently utilizing energy and reducing engineering cost. The encapsulation of the optical system is flexible. Single chip encapsulation and multi-chip encapsulation can be adopted. The arrangement of a plurality of the optical systems is free, simple and flexible.
Owner:TSINGHUA UNIV

Method for preparing large-admixture-amount wet-milled phosphorus solid waste super-retarding cementing material

The invention discloses a method for preparing a large-admixture-amount wet-milled phosphorus solid waste super-retarding cementing material. The method comprises the following steps: putting phosphorus slag and desulfurized fly ash into a wet-milling machine, and performing mixing and wet milling so as to obtain mixed slurry A; grinding caustic dross, ardealite and coal ash in a dry-milling machine so as to obtain a mixed powder material B; and mixing the mixed slurry A with the mixed powder material B so as to obtain a mixed material C, adding cement, a water reduction agent, a retarder, tailing sand and macadam into the mixed material C, and performing stirring for 4 minutes, so as to obtain super-retarding concrete. Wastes such as the phosphorus slag, desulfurized fly ash, caustic dross, ardealite, coal ash and tailings are adopted to prepare concrete, wastes are turned into wealth, and the amount of cement can be also reduced; due to a mixed wet-milling mode of the phosphorus slagand the desulfurized fly ash, phosphorus dissolution of the phosphorus slag can be promoted, the initial setting time and the final setting time of the concrete can be greatly prolonged, early-stagehydration heat can be reduced, cracks can be reduced, later strength can be ensured, and large-admixture-amount efficient application of the phosphorus slag can be achieved; and the prepared super-retarding concrete can be applied to large-size concrete, drilling bitten piles, and the like.
Owner:HUBEI UNIV OF TECH

System and method used for alleviating traffic congestion of crossing

The invention discloses a system used for alleviating traffic congestion of a crossing. A primary buffer zone, a secondary buffer zone, buffer zone signal lamps, traffic signal lamps and cameras are arranged at each road of the crossing respectively, wherein an area, less than dm from a stop line, of each road of the crossing is taken as the primary buffer zone, and a fixed traveling direction isnot set for all the lanes in each primary buffer zone; an area, except the primary buffer area, of each road of the crossing is taken as the secondary buffer zone, and a fixed traveling direction is set for each lane in each secondary buffer zone; the buffer zone signal lamps are used for indicating vehicles in the secondary buffer zones to enter the corresponding primary buffer zones; and the traffic signal lamps are used for indicating vehicles in the primary buffer zones to travel and pass the crossing. In the method disclosed by the invention, indication of the buffer zone signal lamps isdecided by the traffic signal lamps and indication of the traffic signal lamps is decided by traffic flow monitored by the cameras provided with a virtual coil, namely the indication of the buffer zone signal lamps, the indication of the traffic signal lamps and the traffic volume monitored by the cameras are in a linked relationship.
Owner:ANHUI SUN CREATE ELECTRONICS

Femtocell clustering and macro user scheduling-based interference coordination method in heterogeneous network

The invention discloses a femtocell clustering and macro user scheduling-based interference coordination method in heterogeneous network, by utilizing the interference coordination of femtocell clustering and macro user scheduling in the heterogeneous network, a femtocell senses that whether the macro user exists around, and forms a femtocell interference cluster around each macro user, the interference cluster corresponding to the macro user asking for accessing a network reports feedback information to a macro base station through a feedback link, a macro cell selects a group K spare macro users for scheduling according to the feedback information, the macro cell selects (K-1) macro users to transmit data according to channel information of the macro user of the current time slot and informs the interference clusters corresponding to the rest macro users to communicate normally during the time slot, the macro user scheduling is repeated until the whole scheduling is finished. By utilizing the method, the coverage area of the macro cell is guaranteed; compared with the prior art, the method has the advantages that the more efficient frequency spectrum and power utilization rate can be realized.
Owner:XIDIAN UNIV

Efficient novel memory index structure processing method

The invention discloses an efficient novel memory index structure processing method. The method comprises the steps of before the skip list processing, calculating the query distribution and the datadistribution conditions through the statistical information; selecting the sentinel nodes inserted into a skip list structure; obtaining an optimal sentinel node configuration result by solving the minimum average operation cost of a skip list after the nodes are inserted; inserting the sentinel nodes into the bottom-layer skip list structure, then establishing an upper-layer CSB + tree structurefrom bottom to top through a Bulkload method after the sentinel nodes in the bottom-layer skip list structure are completely inserted, and quickly positioning the sentinel nodes; and for each piece ofdata needing to be queried or inserted, finding the nearest sentry node through the upper-layer CSB + tree structure, and starting to operate the skip list from the nearest sentry node. According tothe method, on the basis of reserving the advantages of simple implementation, good concurrency, suitability for range query and the like of a traditional skip list structure, the cache utilization rate of the whole operation process is improved, so that the memory index performance is obviously improved.
Owner:ZHEJIANG UNIV

Water through type heating and cooling floor

The invention relates to a water through type heating and cooling floor, which fundamentally solves the problems of poor foot comfort, complicated structure, inconvenient maintenance and low heat utilization rate of the existing air-condition type floor. The heating and cooling floor comprises an extruded sheet paved on the ground as a heat insulating layer. The heating and cooling floor has the technical points that the upper surface of the extruded sheet is provided with multiple concave type through slots which are mutually parallel; a modified PVC (Polyvinyl Chloride) water through square pipe is arranged in each concave type through slot; the lower surface of the modified PVC water through square pipe tightly contacts with the bottom surfaces of the concave type through slots on the extruded sheet; the upper surface of the extruded sheet is covered with a solid wood composite floor; the lower surface of the solid wood composite floor is provided with the same amount of the concave type through slots corresponding to the concave type through slots on the extruded sheet; the upper surface of the modified PVC water through square pipe tightly contacts with the bottom surfaces of the concave type through slots on the solid wood composite floor; and the two ends of each modified PVC water through square pipe are respectively connected to a water segregator after the heat capacity welding is carried out. The water through type heating and cooling floor has the advantages of warmness in winter and coolness in summer, strong decorative effect and comfortable foot feel, and is suitable for various residence and office spaces.
Owner:张洪杰

Device and method for producing methane in biological biogas fermentation tank

The invention discloses a device and a method for producing methane in biological biogas fermentation tank. The device comprises a fermentation tank body for fermenting organic wastes, wherein a feeding device is arranged above the fermentation tank body, a gas storage device is arranged above a side of the fermentation tank body, a discharging device is arranged at a bottom of the fermentation tank body, and a stirrer for stirring the organic wastes is arranged inside the fermentation tank body; the stirrer comprises a motor arranged right above the fermentation tank body, a stirring rod electrically connected with a motor and arranged inside the fermentation tank body, and a stirring impeller; wherein the stirring rod, the stirring impeller and the fermentation tank body form a voltage generating circuit through a direct-current power supply, namely, an anode of the direct-current power supply is connected with the stirring rod and the stirring impeller, a cathode of the direct-current power supply is connected with a stainless steel net surrounding an inner wall of the fermentation tank body, and carbon dioxide generated by fermentation of organic wastes is electrolyzed into methane. The device can be used to electrolyze carbon dioxide into methane, thereby improving purity of methane gas in the biogas.
Owner:UNIVERSITY OF CHINESE ACADEMY OF SCIENCES

Functional porous ceramic preparation device and method

The invention discloses a functional porous ceramic preparation device, and particularly relates to the field of porous ceramics. The functional porous ceramic preparation device comprises a partition plate, bottom boxes are fixedly mounted at the left and right ends of the bottom surface of the partition plate, bases are fixedly mounted on the side surfaces between the two bottom boxes, and motors are fixedly mounted at the tops of the bases. Water distribution plates are fixedly installed in the middles of inner cavities of the bottom boxes, a top box is fixedly installed at the top of the partition plate, and water pumps are fixedly installed on the left side and the right side of the bottom face of an inner cavity of the top box. The water pumps and water spraying pipes are arranged to conduct water washing on the machining position, so that dust and water are fused and discharged, the stability of the machining process is guaranteed, the labor intensity of operators is effectively reduced, meanwhile, multiple mechanical arms can be used for machining the surface of a ceramic blank at the same time, and compared with the prior art, the machining speed is higher, the machining efficiency is higher, and the functional porous ceramic preparation device is suitable for industrial ceramic production.
Owner:袁强

In-memory operation method and device and application thereof

The invention relates to the technical field of memories, and discloses an in-memory operation method and device and application thereof. The method comprises the steps: dividing and configuring a storage array into a plurality of operation basic blocks according to a single-channel operation function, normalizing the output ends of all operation units in the operation basic blocks to be connected into matched local summing lines LSL, and arranging summing lines GSL according to columns, wherein each matching operation basic block is provided with a controlled switch; enabling each summing line LSL located on the same column to be in data connection with a summing line GSL through the controlled switch, configuring parameters of the operation basic blocks, reading the data to be operated, selectively switching on or off the controlled switches, and outputting the target operation result data in cooperation with output shifting operation. According to the method, in-memory calculation including grouping convolution can be more efficiently realized, higher calculation performance and a more excellent calculation energy efficiency ratio are achieved, the correctness of overall calculation is ensured, and the practical value in practical significance is achieved.
Owner:HEFEI HENGSHUO SEMICON CO LTD
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