Abstract: This is a new precursor and new method for the synthesis of no-carrier-added O-(2-[18F]fluoroethyl)-L-Tyrosine which has been proved a suitable PET (position emission tomography) probe for tumor diagnosis imaging, the preparation of the title compound starts from precursors with the chemical structures as in Formula 1, wherein R1 is a protective group for the carboxyl functional group, R2 is a protective group for the amino group, and R3 acts as a leaving group. R1 represents an arylalkyl group, R2 represents a carboxyl group, and R3 represents a p-tosyloxy, methane sulfonyloxy or trifluoromethane sulfonyloxy or bromine, the invention includes a method for the syntheses of new precursors with the chemical structures as in Formula 1.

Abstract: This is a novel method for production of no-carrier-added O-(2-[18F]fluoroethyl)-L-Tyrosine, which has been proved a suitable PET (position emission tomography) probe for tumor diagnosis imaging, and the preparation of the title compound starts from precursors with the chemical structures as in Formula 1, wherein R1 is a protective group for the carboxyl functional group, R2 is a protective group for the amino group, and R3 acts as a leaving group, R1 represents an arylalkyl group, R2 represents a carboxyl group, and R3 represents a p-tosyloxy, methane sulfonyloxy or trifluoromethane sulfonyloxy or bromine, and the final purification of the product is using a separation column, which is very convenient for automated synthesis, and the invention uses the precursor with the chemical structures as in Formula 1.

Abstract: A method is provided of forming an assisted charge memory (AC-memory) cell. The method uses a two-sided charge trap memory cell that includes a two-sided charge trapping layer. A charge is formed in at least a portion of the two-sided charge trapping layer. One side (AC-side) of the two-sided charge trapping layer always has a fixed high threshold voltage (Vt) level which is the assisted charge for the AC-memory cell. The other side (data-side) is used for memory operations.

Abstract: An inflatable game ball including a carcass, a cover and at least one thin member. The cover has inner and outer surfaces. The inner surface of the cover is coupled to the carcass. At least one recess is formed into the outer surface of the cover. At least one thin member is coupled to the cover at the at least one recess. The member substantially fills the recess. The member has inner and outer portions. The outer portion is formed of a highly gripable material.

Abstract: An inflatable game ball including a carcass, a cover and at least one thin member. The cover has inner and outer surfaces. The inner surface of the cover is coupled to the carcass. At least one recess is formed into the outer surface of the cover. At least one thin member is coupled to the cover at the at least one recess. The member substantially fills the recess. The member has inner and outer portions. The outer portion is formed of a highly gripable material.

Abstract: An inflatable bladder is provided with an inflation valve device that includes a sleeve member, a tubular indicator mounted movably in the sleeve member and marked with indicia for indicating internal pressure of the bladder, an inflation needle mounted in the indicator for inflation of the bladder, and an urging member disposed between the sleeve member and the indicator in such a manner that outward movement of the indicator resulting from the pressure difference between the pressure in the bladder and the atmospheric pressure results in displacement of the urging member, which is indicated by the indicia exposed from the bladder.

Abstract: An inflatable bladder is provided with an inflation valve device that includes a sleeve member, a tubular indicator mounted movably in the sleeve member and marked with indicia for indicating internal pressure of the bladder, an inflation needle mounted in the indicator for inflation of the bladder, and an urging member disposed between the sleeve member and the indicator in such a manner that outward movement of the indicator resulting from the pressure difference between the pressure in the bladder and the atmospheric pressure results in displacement of the urging member, which is indicated by the indicia exposed from the bladder.

Abstract: An inflatable game ball includes an inflatable bladder, a winding layer surrounding the bladder, a rubber inner carcass layer surrounding the winding layer, and a cellular outer carcass layer surrounding the inner carcass layer. During manufacture of the game ball, the bladder is first inflated. A plurality of yarns are wound around the inflated bladder to form the winding layer, on which the inner carcass layer is molded. A plurality of patches are interconnected by stitching to form a bag that has an opening. The bag is reversed, and the bladder is deflated so that an assembly of the bladder, the winding layer, and the inner carcass layer can be inserted into the reversed bag via the opening. The opening in the bag is then closed by stitching so as to form the outer carcass layer on the inner carcass layer.

Abstract: An inflatable device, such as a sport ball, includes a tubular elastomeric member inserted into and attached to a rubber carcass and having a valve slit at a bottom wall thereof. A tubular rigid stem is inserted into a receiving hole in the elastomeric member and is spaced apart from the valve slit so as not to deform the valve slit. The rigid stem confines a passage communicating with the valve slit to admit ambient air into the carcass via the passage and the valve slit.