Yuehua
Yuehua Chen, Hunan CN
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20150307958 | MONAZITE BALLAST SEPARATION AND RECOVERY METHOD - The invention relates to a separation and recovery method for radioactive waste slag and specifically relates to a separation and recovery method for monazite slag. The separation and recovery method comprises the following steps: acid leaching, pressure filtration, water washing, extraction of valuable components and treatment of filtration slag. The separation and recovery method provided by the invention performs low-acid and low-temperature leaching on monazite slag, so that a liquid phase and a solid phase are easy to separate; after an ore dressing process is adopted for performing ore dressing and alkali decomposition on secondary slag, closed-loop circulation and recovery of uranium, thorium and rare earth is realized; and simultaneously, extraction raffinate waste acid is recycled, so that the emission of waste water is reduced, the consumption of sulfuric acid and fresh water and the treatment cost of the waste water are reduced, the production cost is reduced, the recovery rate of the valuable elements, namely the uranium, the thorium and the rare earth is more than 97%, and the whole process has no emission of the radioactive waste water and waste slag. | 10-29-2015 |
Yuehua Jia, Beijing CN
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20160048439 | METHOD FOR CONTROLLING PLUG-IN BY A ROUTER AND THE ROUTER THEREOF - The present disclosure relates to a method for controlling a plug-in by a router and the router thereof. The method includes: receiving a plug-in state request querying an operational state of a plug-in sent from a terminal device; obtaining the operational state of the plug-in according to the plug-in state request; and sending the operational state of the plug-in to the terminal device. | 02-18-2016 |
Yuehua Li, Shanghai CN
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20130112120 | Dense Phase Swirl Pulverized Coal Burner - A dense phase swirl pulverized coal burner comprises a primary air channel, a direct flow secondary air channel and a outermost swirl secondary air channel; and multiple levels of pulverized coal concentration rings are arranged axially at intervals along the oil gun casing in a straight tube section of the primary air channel, so that pulverized coal air flow is distributed thickly outside and thinly inside the primary air nozzle. In the invention, dense phase pulverized coal outside the primary air nozzle passes through guide vanes, forms disturbed flow, is ejected into a furnace and mixes with high temperature backflow flue gas rapidly and sufficiently at an outlet. Meanwhile, dilute pulverized coal air flow at the center is ejected into the furnace by direct flow, ensuring subsequent mixing and combustion of pulverized coal flow. The primary air nozzle and the secondary air nozzle are provided with cone flaring structures with certain angle to effectively control appropriate mixing of secondary air and pulverized coal. The invention has advantages of strong ignition and combustion stability, good coal adaptability, low nitric oxide emission, simple primary air channel structure and small resistance, which effectively slows wear rate of parts. | 05-09-2013 |
20130333676 | Plasma Oil-free Ignition System in Oxygen Enriched Environment - A plasma oil-free ignition system in oxygen enriched environment comprises a plasma generator and a burner. The plasma oil-free ignition system comprises a sleeve group coaxially arranged with the burner, and the sleeve group comprises multiple coaxially sleeved sleeves. Annular spaces are formed between adjacent sleeves and between the sleeves and the burner. Oxygen ducts are arranged on the sleeves, and oxygen ducts are arranged on the burner. Plasmas jetted by the plasma generators form a local high temperature zone filled with high temperature plasma and pulverized coal air flow. A certain amount of oxygen is fed to the burner through the oxygen duct therein to form local oxygen enriched zones in the annular spaces and the subsequent adjacent spaces through which air flows, thus realizing oxygen enriched combustion of volatile matters or coke or mixture thereof, and combustion the pulverized coal air flow more intensely to release more heat so as to ignite the primary air pulverized coal air flow quickly and burn the pulverized coal air flow stably. The invention has simple structure, is applicable to different coal types, especially applicable to the plasma oil-free ignition system in oxygen enriched environment of coal types with low volatile matters. | 12-19-2013 |
Yuehua Qiu, Xiamen CN
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20150090812 | PILOT VALVE SWITCH MECHANISM AND A COMBINED SHOWER APPLIED WITH THE PILOT VALVE SWITCH MECHANISM - A pilot valve switch mechanism and combined shower applied with the pilot valve switch mechanism includes a fixed portion and a valve spool. The fixed portion includes an inlet waterway, a first outlet waterway, a second outlet waterway and a control hole capable to connect to the outlet waterways. The first outlet waterway has a first outlet. The second outlet waterway has a second outlet. The valve spool is slidably assembled inside the fixed portion along the inlet waterway, with a slim hole connected to the inlet waterway. The valve spool and the fixed portion form a pressure cavity, which is connected to the control hole and the slim hole. The control hole controls the water pressure of the pressure cavity to drive the valve spool to close the first or second outlet, connecting the inlet waterway to the first or second outlet waterway. The control hole switches the waterways. | 04-02-2015 |
Yuehua Wang, Shenzhen CN
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20130169362 | INPUT CLAMPING STRUCTURE FOR SOUND QUALITY IMPROVEMENT IN CAR-RADIO CLASS-AB POWER AMPLIFIER DESIGN - A clamping circuit for a class AB amplifier includes a reference voltage circuit, four NPN Darlington transistors having inputs coupled to the reference voltage circuit, and outputs for providing four clamped voltages, and a split NPN Darlington transistor having an input coupled to the reference voltage circuit, and four separate outputs for providing four AC ground voltages. | 07-04-2013 |
20150137888 | INPUT CLAMPING STRUCTURE FOR SOUND QUALITY IMPROVEMENT IN CAR-RADIO CLASS-AB POWER AMPLIFIER DESIGN - A clamping circuit for a class AB amplifier includes a reference voltage circuit, four NPN Darlington transistors having inputs coupled to the reference voltage circuit, and outputs for providing four clamped voltages and a split NPN Darlington transistor having an input coupled to the reference voltage circuit, and four separate outputs for providing four AC ground voltages. | 05-21-2015 |
Yuehua Wang, Beijing CN
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20100261916 | METHOD FOR RESOLUTION OF A MIXTURE OF PINOCEMBRIN OPTICAL ISOMERS, ESPECIALLY A PINOCEMBRIN RACEMATE - The present invention relates to a method for resolution of a mixture of pinocembrin optical isomers, in particular a pinocembrin racemate, using a chiral primary amine or a chiral sulfinamide. The present invention also relates to a (R)-(+)-pinocembrin obtained by the method. | 10-14-2010 |
20110218173 | INCLUSION COMPLEXES OF PINOCEMBRIN WITH CYCLODEXTRIN OR ITS DERIVATIVES - Inclusion complexes of pinocembrin with cyclodextrin or its derivatives and their preparation are provided. The inclusion complexes can be used to make drugs. | 09-08-2011 |
Yuehua Wei, Shenzhen City, Guangdong Province CN
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20160105324 | Method and System for Information Interaction Among Systems in the Same End in DRNI - Disclosed are a method and system for information interaction between systems in a same portal in a distributed resilient network interconnection, wherein the method is applied to each system in an portal in a link aggregation group, including: sending a distributed relay control protocol (DRCP) message through an intra-portal interface, wherein at least system information of a present system is carried; after receiving a DRCP message sent by an adjacent system, if it is determined that the present system and the adjacent system can form one portal in the distributed resilient network interconnection, determining an operational Key value of the present system. The system includes: a sending state machine, a receiving state machine, a negotiating state machine, a synchronizing state machine and a periodic sending state machine. | 04-14-2016 |
Yuehua Xiao, Toronto CA
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20130137780 | NON-ADHESIVE ELASTIC GELATIN MATRICES - The present invention is a substantially non-adhesive elastic gelatin matrix. The matrix is both non-adhesive to wounds, tissues and organs and is also elastic such that it is flexible. The matrix is a lyophilized mixture of protein(s), polymer(s), cross-linking agent(s) and optional plasticizer(s). The invention also provides methods for making the non-adhesive elastic gelatin matrix. | 05-30-2013 |
Yuehua Zhang, Nanjing CN
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20140343088 | TROLOX DERIVATIVE-MODIFIED FAT-SOLUBLE ANTI-CANCER PHARMACEUTICAL COMPOUNDS, PREPARATIONS, PREPARING METHODS AND USE THEREOF - Disclosed is a trolox derivative-modified fat-soluble anti-cancer pharmaceutical compound having a structure as represented by formula I or II. An active moiety of the anti-cancer pharmaceutical compound, camptothecin or a camptothecin derivative, is covalently bonded to a lipophilic moiety, a trolox ester or a trolox amide, by a linking group to form the fat-soluble anti-cancer pharmaceutical compound. Also disclosed are a preparation, preparing method and use of the pharmaceutical compound. | 11-20-2014 |