Dejian
Dejian Li, Beijing CN
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20080258794 | GLITCH-FREE CLOCK SWITCHING CIRCUIT - A glitch-free clock switching circuit receives a first clock signal and a second clock signal and outputs a third clock signal corresponding to the first clock signal or a fourth clock signal corresponding to the second clock signal according to a clock switching signal. The glitch-free clock switching circuit switches to output clock signals by stopping output of a clock signal, and then waiting for a predetermined period of time before outputting another clock signal. | 10-23-2008 |
20090287871 | UNIVERSAL SERIAL BUS HOST CONTROLLER AND CONTROL METHODS THEREOF - The present invention provides a USB host controller and control method thereof. The USB host controller comprises a first controller, a second controller and a first memory. The first controller controls first transfer between a host and a USB device. The second controller controls second transfer between the host and the USB device. The first memory is coupled to the first controller and the second controller and is configured to temporarily store data transferred between the host and the USB device. The first controller accesses the first memory during the first transfer, and the second controller accesses the first memory during the second transfer. | 11-19-2009 |
20120118041 | SYSTEM AND METHOD FOR TESTING GAS MIGRATION PROCESS IN COAL-ROCK MASS - A system and method for testing gas migration process in the coal and rock mass are disclosed. The method includes the following steps: selecting a cylindrical coal sample, applying an axial pressure and a radial pressure to the coal sample under a sealing state, and/or increasing temperature, to desorb gas absorbed by the coal sample; guiding the gas desorbed from the coal sample by a guiding passage, detecting gas flow rate and pressure, analyzing gas composition and content, and achieving a data statistics. The method provides a theory and data basis for researching the forming and occurring process of gas outburst accident in coal mine. The system is simple and easy to use, and is suitable for migration research of the gas absorbed in the deep coal-rock mass. | 05-17-2012 |
Dejian Liang, Beijing CN
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20140054510 | Y-TYPE OXOTITANIUM PHTHALOCYANINE NANOPARTICLES, PREPARATION, AND USE THEREOF - Oxotitanium phthalocyanine nanoparticles in the crystal form of phase-Y (Y-TiOPc) having particle diameters of 2˜4 nm, preparation, and applications thereof are disclosed. The preparation method comprises the following steps: mixing a concentrated sulfuric acid solution of TiOPc with water or dilute sulfuric acid, or water or dilute sulfuric acid with a surfactant dissolved therein, or an aqueous solution of a low molecular weight organic compound to form a suspension or hydrosol; adding into the resulting suspension or hydrosol chlorinated hydrocarbons to extract TiOPc into an organic phase, so as to form a colloidal solution of Y-TiOPc nanoparticles; and then, washing and drying the above nanoparticles to give rise to a powder of the Y-TiOPc nanoparticles. Such a nanoparticle powder can disperse in chlorinated hydrocarbons to form stable colloidal solutions, thereby providing an alternative approach for solving the problem of poor dispersibility for Y-type TiOPc. | 02-27-2014 |
Dejian Xie, Chengdu CN
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20140194434 | NOVEL SUBSTITUTED INDOLO 4,3 FG QUINOLINES USEFUL FOR TREATING MIGRAINE - Provided herein are novel ergoline derivatives and pharmaceutical compositions thereof. In other embodiments, provided herein are methods of treatment, prevention, or amelioration of a variety of medical disorders such as, for example, migraine using the compounds and compositions disclosed herein. In still other embodiments, provided herein are methods of agonizing receptors such as, for example, the 5-HT | 07-10-2014 |
20140194435 | NOVEL SUBSTITUTED INDOLO 4,3 FG QUINOLINES USEFUL FOR TREATING MIGRAINE - Provided herein are novel ergoline derivatives and pharmaceutical compositions thereof. In other embodiments, provided herein are methods of treatment, prevention, or amelioration of a variety of medical disorders such as, for example, migraine using the compounds and compositions disclosed herein. In still other embodiments, provided herein are methods of agonizing receptors such as, for example, the 5-HT | 07-10-2014 |
Dejian Xu, Shanghai CN
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20130239810 | Process and Apparatus for Optimized Combination of Purification and Separation of MTO Reaction Gas Containing Catalyst Fine Powder - The invention relates to a process and an apparatus for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder. In particular, the invention provides a process for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder, comprising (a) scrubbing, purifying and cooling the MTO reaction gas containing catalyst fine powder, and separating and recovering the mist entrained in the scrubbed reaction gas and the catalyst fine powder that is not scrubbed off; (b) subjecting the scrubbing liquid containing catalyst fine powder to solid-liquid separation, and the purified scrubbing liquid after separation to repeated use after subsequent heat exchange and stripping treatment; and (c) subjecting the scrubbing liquid containing catalyst fine powder to solid-liquid separation, and further concentrating the scrubbing liquid containing catalyst fine powder after separation before the catalyst fine powder is finally recovered in solid form by centrifugal dewatering or drying. The invention also provides an apparatus for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder. | 09-19-2013 |