摘要:
Methods of preparing surfaces are disclosed relating to polymeric substrates that include the use of nano-scale silica particles, solvents and oligomers. Resulting surface preparations on those polymeric substrates may take the form of resilient superhydrophobic coatings having high optical transmittance.
摘要:
A word line driving method is for a nonvolatile memory device including a plurality of memory blocks having a plurality of strings which is formed in a direction perpendicular to a substrate and connected between bit lines and a common source line. The method includes applying an offset pulse to a word line for a predetermined time to shorten a word line setting time, and applying a target pulse having a level which is higher or lower than a level of the offset pulse to the word line after the predetermined time.
摘要:
The inventive concept relates to a nonvolatile memory device and methods for operating the same. The nonvolatile memory device comprises a plurality of strings arranged in rows and columns on a substrate, each string including at least one ground select transistor, a plurality of memory cells and at least one string select transistor sequentially stacked on the substrate. The method comprises erasing first memory cells corresponding to an erasure failed row and inhibiting erasure of second memory cells corresponding to an erasure passed row, and performing an erasure verification by a unit of each row with respect to the first memory cells.
摘要:
A device and methods are provided for efficient and quick capture of target cells through a main microchannel having capture elements immobilized thereon and manipulating a velocity profile of a sample as it passes through the main microchannel. The cell capture device may have a main microchannel with a depth slightly larger than the diameter of the target cells and a plurality of side microchannels. The side microchannels may have a depth smaller than the diameter of the target cells. The device and methods may be used for early cancer detection.
摘要:
Provided is a mine detector detachably attached to the combat boot, which includes a main body detachably attached to the combat boot, and provided with a power supply, a signal transmitting part and a signal receiving part, and a detection part detachably attached to the combat boot, and provided with an antenna connected to the main body.
摘要:
A system for determining an interested field of an Internet user, attracting advertisements from sponsors according to the user's interest, and providing advertisements to the user via the Internet includes a keyword database for recording multiple keywords, keyword type information, predetermined reference information for the type information, and advertisement list information including the number of advertisement files including the keyword. A use event is received and a keyword is recorded as history data corresponding to the event. Keyword type information is searched using a keyword database and reference information of the type information is searched. The keyword is determined an interested field of the user according to the reference information. An advertisement file is generated including the interested field keyword. The number of advertisement files is updated in the advertisement list information in the keyword database and advertisement information is generated including the keyword and the updated advertisement list information.
摘要:
A semiconductor memory device includes a memory cell array, a tag information register, a refresh control circuit and a DQ pin. The memory cell array includes multiple memory cells divided into first cells and second cells according to corresponding data retention times. The tag information register stores refresh cycle information for each wordline connected to the first cells and the second cells. The refresh control circuit is configured to generate a refresh enable signal and a refresh address based on the refresh cycle information. The DQ pin is configured to output the refresh enable signal, the refresh address and data stored in the memory cell array.
摘要:
The present invention relates to a feed unit 10 mounted at one side of an interior of a body 1 so as to feed a golf ball 40 and an adjustment unit 20 mounted at an other side of the interior of the body 1 so as to adjust a height of a golf tee 30, wherein the feed unit 10 includes: a main body 11 having a passage 11a through which the golf ball 40 passes, an inlet port 12 and an outlet port 13 formed at both ends of the passage 11a, and shaft holes 11b formed at both side walls thereof; a pulley 14 fittingly disposed between the shaft holes 11b of the main body; movable plates 15 each having a bearing 15a mounted thereon and disposed on both outer sides of the shaft holes 11b of the main body 11 in such a manner as to be coupled at one side thereof to the main body 11 by means of shaft pins 16 and be connected at the other side thereof with a spring 17 mounted on the main body 11, thereby allowing the movable plates 15 and the pulley 14 to rotate about the shaft pins 16; and a feed motor 18 mounted at one side movable plate 15 and having a shaft 18a coupled to the bearing 15a and the pulley 14 so as to rotate the pulley 14 by the activation thereof, and wherein the adjustment unit 20 includes: an upper plate 21 having an entry/exit hole 21a formed at one side thereof; a lower plate 22; a support rod 23 disposed between the upper plate 21 and the lower plate 22 so as to fixedly support the upper plate 21 and the lower plate 22; guide rods 24 mounted at left and right sides on the underside of the entry/exit hole 21a in such a manner as to be fixed between the upper plate 21 and the lower plate 22; an elevating board 25 adapted to insertedly fit around the guide rods in such a manner as to move upwardly and downwardly along the guide rods 24; the golf tee 30 mounted on the elevating board 25; gears 26a and 26b mounted at the back side of the elevating board 25 in such a manner as to be located on the inner sides of the upper plate 21 and the lower plate 22; a stepping motor 27 mounted on one side of the lower plate 22; a power gear 28 located at the shaft of the stepping motor 27; and a timing belt 29 adapted to couple the power gear 28 and the gears 26a and 26b thereto in such a manner as to be fixed to one side of the elevating board 25, whereby the golf ball 40 dispensed through the outlet port 13 of the feed unit 10 is teed up on the golf tee 30 of the adjustment unit 20.
摘要:
Disclosed is an expression vector system for variants of coagulation factor VIII (FVIII) and von Willebrand factor (vWF). In detail, mutant vWF the size of which is significantly reduced by deleting exons but which has remarkably increased FVIII stabilizing and activating efficiency, and an expression vector system useful for the treatment of hemophilia which is capable of expressing the same along with FVIII are disclosed. Use of the mutant vWF with a reduced size enables effective expression of FVIII in a viral vector and significantly enhanced FVIII activity. Further, the viral vector may be effectively used to treat hemophilia through gene therapy.