43 results about "Core fragment" patented technology

The invention discloses a method for efficiently recovering active materials of positive poles in waste lithium batteries, which is mainly characterized by adding crushed electrical core fragments into hot water, stirring the mixture, and performing first vibration screening after the filtration and drying to separate most of an active material; dissolving aluminum foil through alkaline leaching after an oversize part is magnetically separated, adjusting the pH value of an alkaline leaching filtrate by dilute acid and ammonium bicarbonate solution, and recovering aluminum; performing second vibration screening after the filtration and drying to separate a residual powder material; and placing the oversize part into water for water cyclone separation, dumping to remove an upper-layer plastic diaphragm, then using dilute sulfuric acid and sodium thiosulfate solution to wash a copper sheet to ensure that carbon powder and active powder which are adhered to the copper sheet are loosened and fall off, making the powder float on an upper layer through cyclone separation after the washing, mixing the powder and the active powders obtained by two screenings, using NaOH solution to soak the mixture after the magnetic separation, calcining the alkali-leached active powder material after the filtration and drying, and taking the active powder material as active powder for subsequent treatment. The use of the method can ensure that the recovery rates of copper and aluminum in waste lithium ion batteries reach 98.5 percent and 97 percent respectively, and the recovery rate of the active materials is about 99 percent.

The present invention provides a method for predicting the likely timing of the onset of menopause for a perimenopausal female subject by determining the amount of hLHβcf in a sample from the subject comprising the steps of: (a) contacting a sample from the subject with an antibody which specifically binds to hLHβcf without substantially cross-reacting with hLH, hLHβ or hLHβcf, under conditions permitting formation of a complex between the antibody and hLHβcf; (b) measuring the amount of complex formed, so as to thereby determine the amount of hLHβcf in the sample; and (c) comprising the amount of hLHβcf in the subject's sample determined in step (b) with either (i) the amount determined for known postmenopausal female subject or (ii) the amount determined for a sample from a known premenopausal female subject, wherein an amount of hLHβcf in the sample similar to the amount of hLHβcf in the known postmenopausal sample indicates temporal proximity to the onset of menopause, and an amount of hLHβcf in the sample similar to the amount of hLHβcf in the known premenopausal sample indicates temporal distance from the onset of menopause for the subject. AS described herein amount is both concentration and pattern of measurement of concentrations in one or more consecutive urine specimens.

The invention relates to a nuclear material detection device. The invention provides a pressurized water reactor spent fuel element indirect neutron CT imaging device. The device realizes a 3D nondestructive test on a pressurized water reactor spent fuel element. The device comprises a spent fuel element motion control device and a conversion screen exposure device. The spent fuel element motion control device comprises a spent fuel element motion controller and a shield housing. The conversion screen exposure device comprises a neutron convert screen, a neutron convert screen channel, a neutron beam channel and a neutron convert screen motion controller. The neutron beam channel is provided with a spent fuel element inlet. The imaging device realizes a 3D nondestructive test on a pressurized water reactor spent fuel element, can acquire complete detection information of defects such as spent fuel element core fragment morphology, core inner particle distribution and a housing breaking state, and can provide forceful guarantee for quality detection and performance improvement of a pressurized water reactor spent fuel element in China.