Yanpeng
Yanpeng Han, Tianjin CN
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20150237805 | Threshing and Separating Device and Combine Harvester Having the Same - A threshing and separating device comprises a first threshing and separating mechanism, a second threshing and separating mechanism, and an intermediate feeding mechanism therebetween. The first threshing and separating mechanism comprises a first cylinder in a form of a toothed rod and a first concave in a form of a wire-grate, and a surface of the first concave facing the first cylinder is provided with no part protruding into a tip circle of threshing teeth of the first cylinder; the second threshing and separating mechanism comprises a second cylinder in a form of a toothed rod and a second concave in a form of a wire-grate, and a surface of the second concave facing the second cylinder is provided with no part protruding into a tip circle of threshing teeth of the second cylinder; the second cylinder comprises a forced feeding portion located at front end thereof and comprising a truncated cone and helical blades on the truncated cone; and a toothed-rod cylinder portion located behind the forced feeding portion and comprising a plurality of second rods parallel to the rotation axis of the second cylinder and uniformly arranged in a circumferential direction thereof, and each second rod is provided with a plurality of second threshing teeth. | 08-27-2015 |
Yanpeng Liu, Shenzhen CN
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20120155615 | METHOD AND DEVICE FOR ADJUSTING A COLLIMATOR RADIATION FIELD IN AN X-RAY IMAGING SYSTEM - A method and device for adjusting a collimator radiation field and an X-ray imaging system including the device are disclosed. | 06-21-2012 |
Yanpeng Song, Shanghai CN
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20160047019 | METHOD OF MANUFACTURING SUPERIOR 13CR THICKENED DRILLROD - A method for manufacturing a superior 13Cr thickened drillrod comprises the following steps: firstly, thickening the ends of a steel tube with a composition so as to obtain a drillrod with thickened ends, the composition in percentage by weight being: C: 0.01-0.05%, Si≦0.5%, Mn: 0.2-1.0%, Cr: 12-14%, Mo: 1-3%, Ni: 4-6%, and a balance of Fe and inevitable impurities; after heating the tube as a whole to 950-1000° C., air cooling same and tempering same at 600-650° C.; and machining the two thickened ends respectively into an externally threaded drillrod coupler and an internally threaded drillrod coupler; wherein the tube end thickening is an external thickening, including three rounds of heating and three rounds of thickening, with at least one pass of deformation for each round, and the heating temperature being 1150-1200° C. for each round; and the upsetting pressure for the first round of external thickening is 180-220 bars, the upsetting pressure for the second round of external thickening is 180-220 bars, and the upsetting pressure for the third round of external thickening is 140-180 bars. The drillrod according to the present invention can be used not only as a drillrod but also as an oil tube, fulfilling requirements of the exploration operation of a CO | 02-18-2016 |
Yanpeng Zhang, Shenzhen CN
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20130172536 | Intravenous Cytomegalovirus Human Immune Globulin and Manufacturing Method Thereof - The present invention discloses an intravenous cytomegalovirus human immune globulin and a manufacturing method thereof, wherein the technical problem to be solved is to improve the purity, yield, and safety of the product. The intravenous cytomegalovirus human immune globulin of the present invention has a specific activity of no less than 2.5 PEI-U/mg, an anti-CMV titer of no less than 100 PEI-U/ml, a purity of greater than 98.2%, and a protein content of 51˜55 mg/ml. The present invention employs caprylic acid precipitation and anion exchange chromatography for replacing the step of ethanol precipitation in the conventional cold ethanol method to keep IgG in the supernatant and maintain the activity of the IgG; the present invention employing processes of caprylic acid inactivation of virus and nanometer film virus removal can effectively protect the safety of the product, and studies show that the preparing method of the present invention not only improves the purity, yield, and safety of the product; but also saves energy and reduces the cost of production. | 07-04-2013 |
Yanpeng Zhao, Weifang City CN
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20150264501 | Earphone Testing Device - The present invention discloses an earphone testing device. An earphone testing device provided by the embodiments of the present invention comprises an fixation base, a standard microphone attached to the fixation base, and a fixation scaffold for attaching and fixing the fixation base and the standard microphone; the fixation base is supported and fixed on the fixation scaffold by several supporting elements; a sealer is located on the position on the fixation base in contact with the outer shell of an earphone, the sealer forms an earphone storage portion for placing the earphone; a sealer is located on the position on the fixation base in contact with the outer shell of the standard microphone, the sealer forms a microphone attachment portion for attaching to the standard microphone; the earphone placed in the earphone storage portion and the standard microphone attached onto the microphone attachment portion are communicated with each other in the fixation base. The present invention provides a stable and highly precise testing solution of earphone, which can guarantee the precision and stability of earphone testing. | 09-17-2015 |