Abstract: An example method includes estimating, based on content to be displayed at a display of a mobile computing device at a future time, an amount of power to be used by the display at the future time; selecting, based on the estimated power level, a power converter of a plurality of power converters of the mobile computing device, each of the plurality of power converters optimized for a different output power range; and causing electrical power from the selected power converter to be supplied to the display at the future time.

Abstract: Provided is a method of compressing an occupancy map of a three-dimensional (3D) point cloud, and more specifically, a method of compressing an occupancy map of a point cloud in which an occupancy map image of a point cloud existing in a 3D space is compressed based on a compression quality or a patch-by-patch inspection method of the occupancy map image so that compression distortion is minimized when reconstructing the compressed occupancy map image so as to remarkably improve the quality of a reconstructed occupancy map image.

Abstract: Provided is a device for injecting a fixed quantity of liquid medicine, to which a syringe may be mounted and which may inject the liquid medicine held in the syringe by a fixed quantity due to a user's pushing operation. The device for injecting the fixed quantity of liquid medicine is advantageous in that a user can operate the device with one hand to inject the fixed quantity of medicine into various areas, thus maximizing operability and convenience. Furthermore, the device is advantageous in that it is possible to maximize medicine delivery efficiency even when operated by a person who is not a medical staff not in a hospital but at home.

Abstract: Provided is a device for injecting a fixed quantity of liquid medicine, to which a syringe may be mounted and which may inject the liquid medicine held in the syringe by a fixed quantity due to a user's pushing operation. The device for injecting the fixed quantity of liquid medicine is advantageous in that a user can operate the device with one hand to inject the fixed quantity of medicine into various areas, thus maximizing operability and convenience. Furthermore, the device is advantageous in that it is possible to maximize medicine delivery efficiency even when operated by a person who is not a medical staff not in a hospital but at home.

Abstract: The present invention relates to a self-injection mechanism that causes a solution (2) having predetermined efficacy to permeate the skin (1) for skin improvement and beauty treatment. The present invention includes: an accommodation unit (10) having a space (11) therein for accommodating the solution (2), an inlet (12) which sucks only air at one end, and an outlet (15) which is open so that the solution (2) is discharged at the other end; a pumping unit (20) coupled to the outlet (15) of the accommodation unit (10) so as to be in communication with the same, having an airless pump (21) which discharges the solution (2) by an up and down movement at the center; and an injection unit (30) coupled with the airless pump (21) of the pumping unit (20) so as to be in communication with the same, causing the solution (2) which is discharged by the up and down movement to permeate the skin (1).

Abstract: Disclosed herein is a curable cyclic phosphazene compound having a low dielectric constant, a low dielectric loss index and high thermal stability, and a method of preparing the same. The curable cyclic phosphozene polymer prepared using the compound has a low dielectric constant and excellent thermal properties, compared to conventional phosphozene polymers.

Abstract: Disclosed herein is a curable cyclic phosphazene compound having a low dielectric constant, a low dielectric loss index and high thermal stability, and a method of preparing the same. The curable cyclic phosphozene polymer prepared using the compound has a low dielectric constant and excellent thermal properties, compared to conventional phosphozene polymers.

Abstract: A diamine compound of the general formula ##STR1## wherein the arrows denote isomerism, R.sub.1 is a divalent aromatic group selected from the group consisting of ##STR2## R.sub.2 is a tetravalent aromatic group selected from the group consisting of ##STR3## and R.sub.4 is a monovalent aliphatic group selected from the group consisting of ethyl and isopropyl; and, a process for preparing same.