Abstract: Disclosed is a method of preparing spinel lithium titanium oxide nanofibers for a negative electrode of a lithium secondary battery, including (S1) mixing an organic material selected from the group consisting of polyvinylpyrrolidone, polymethylmethacrylate, polyethylene, polyethylene oxide and polyvinyl alcohol, a lithium precursor, and a titanium precursor with a solvent, thus preparing a mixture solution, (S2) electrospinning the mixture solution, thus preparing composite nanofibers, and (S3) heat-treating the composite nanofibers, thus removing the organic material.

Abstract: A system and method for tracking a gaze at a distance are provided. A remote gaze tracking system may include an infrared lighting unit including a plurality of infrared lightings to emit an infrared light toward a user, a gaze tracking module to track a position of a face of the user, and to collect, from the tracked position of the face, an eye image including at least one reflected light among a plurality of corneal reflected lights and a lens-reflected light, the corneal reflected lights being reflected from a cornea by the emitted infrared light, and the lens-reflected light being reflected from a lens of glasses, and a processor to compare a magnitude of the lens-reflected light with a threshold in the collected eye image, and when the magnitude of the lens-reflected light is equal to or less than the threshold, to detect coordinates of a center of each of the plurality of corneal reflected lights, and to calculate a gaze position.

Abstract: There is provided a sol-gel chip using a porous substrate for entrapping small molecules and a method for screening a small molecule-specific material using the same, and more particularly, a porous substrate sol-gel chip characterized in that a sol-gel composition for entrapping small molecules is spotted on a surface of the porous substrate, a method for manufacturing the porous substrate sol-gel chip for entrapping small molecules, and a method for screening a material specifically binding to the small molecules using the porous substrate sol-gel chip for entrapping small molecules. According to the present invention, the small molecules can be effectively entrapped in the chip and the inflow of aptamers can be maintained as compared with the existing methods and thus aptamers specific to an extensive range of small molecules can be more easily selected.