Chengfeng
Chengfeng Wang, Huzhou CN
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20140174998 | FILTRATION ASSEMBLY INCLUDING MULTIPLE MODULES SHARING COMMON HOLLOW FIBER SUPPORT - A filtration assembly comprising a first and second module, each module comprising a plurality of vertically aligned semi-permeable hollow fiber membranes extending along a length between first and second ends with one of said ends potted within a header, and wherein the headers of the modules are aligned and spaced apart to define a vertical flow path; and at least one fiber support positioned along the length of the hollow fiber membranes of both modules, wherein the fiber support comprises a frame including a plurality of partitions that segment the hollow fiber membranes of both modules into common fiber groupings passing through the fiber support. | 06-26-2014 |
20140191424 | GAS DIFFUSER - A gas diffuser comprises a grid of aeration pipes spaced apart and in parallel alignment with each other within a common horizontal plane and a manifold in fluid communication with the aeration pipes. A given aeration pipe ( | 07-10-2014 |
20150246377 | WASHING MACHING INCLUDING INTEGRAL FILTER MODULE AND AERATOR - A washing machine and a corresponding method for cleaning ware or laundry items are provided. The machine comprises: a wash tub ( | 09-03-2015 |
Chengfeng Zhang, Shanghai CN
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20140104525 | ARRAY SUBSTRATE, LIQUID CRYSTAL DISPLAY AND CONTROL METHOD THEREOF - An array substrate, a liquid crystal display and a control method thereof are disclosed. The array substrate includes scanning lines, data lines, pixel units, and common lines. Each common line is disposed along a row of pixel units. The array substrate also includes a common voltage supply line, and dual-channel selection switches each having an output terminal connected to a set of common lines, two input terminals connected to a common voltage high level supply line and a common voltage low level supply line respectively to selectively apply a high level or a low level to the common lines, thereby avoiding delay of the common voltage Vcom and the Vcom drift during a display mode and improving the display effect for an image. | 04-17-2014 |
Chengfeng Zhang, Shaoxing CN
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20150284323 | CLEAN METHOD FOR PREPARING D,L-METHIONINE - The present invention discloses a clean method for preparing a D,L-methionine comprising the steps of: preparing a potassium cyanide solution using a crystallized mother solution containing potassium carbonate as an absorbing liquid to absorb hydrocyanic acid, then reacting the potassium cyanide solution with 3-methylthio propionaldehyde and an ammonium bicarbonate solution at 50-150° C. for 3-15 minutes so as to obtain a 5-(β-methylthioethyl)glycolyurea solution, then bring the 5-(β-methylthioethyl)glycolyurea solution to a temperature of 140-220° C. and subjecting to a saponification reaction for 2-5 minutes, after the completion of the saponification, reducing the temperature to 0-40° C., extracting with an organic solvent, neutralising the water phase with CO | 10-08-2015 |
Chengfeng Zhao, Ankeny, IA US
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20160060712 | SYSTEMS AND METHODS FOR PERICARP GENOTYPING - The invention includes methods for obtaining samples of maternal tissue from seeds, obtaining genetic material from the maternal seed tissue, and performing a molecular analysis on the genetic material from the maternal seed tissue to determine maternal lineage of a single seed. The invention also includes methods for establishing a consensus maternal genotype from maternal seed tissues obtained from multiple seeds as well as methods for determining paternal lineage. | 03-03-2016 |