摘要:
The present invention relates to an algorithm that retrieves only k data elements having the largest (or smallest) key values from a dataset (i.e., top-k results) in a time linearly proportional to the size of the dataset. The proposed method using the algorithm finds the top-k results using a k-sized min (or max) heap structure that maintains candidate elements of the top-k results by scanning all data elements in the dataset only once. In other words, the present invention provides a linear-time top-k sort method that finds top-k results in a time linearly proportional to the size of the dataset (i.e., O(n) time complexity), while conventional sort algorithms for finding top-k results cannot find the top-k results in a time linearly proportional to the size of the dataset (i.e., at least O(n log n) time complexity).
摘要:
The present invention provides a method for manufacturing a metal/composite hybrid wheel for a vehicle by molding an inner rim of a composite material by compression and, at the same time, bonding an outer rim of a metal material to the inner rim to induce compressive residual stress in the bonding area by a difference in thermal expansion coefficient between the outer rim and the inner rim, thereby increasing the adhesive strength of the bonding area and the durability of the wheel. The present invention further provides a metal/composite hybrid wheel for a vehicle manufactured by the method.
摘要:
A mobile terminal includes a body including a flexible portion, a display unit provided to the body, a sensing unit provided to the body and generating an electric signal in response to bending of the body, and a controller recognizing the electric signal and controlling the display unit according to the electric signal generated by the bending of the body.
摘要:
A semiconductor device according to an embodiment of the present invention includes a vertical channel layer protruding upward from a semiconductor substrate, a tunnel insulating layer covering a sidewall of the vertical channel layer, a plurality of floating gates separated from each other and stacked one upon another along the vertical channel layer, and surrounding the vertical channel layer with the tunnel insulating layer interposed therebetween, a plurality of control gates enclosing the plurality of floating gates, respectively, and an interlayer insulating layer provided between the plurality of control gates.
摘要:
The present invention relates to a novel technology for forming fine particles with a size of 0.0˜23 microns from a solid that can be dissolved in a liquid solvent and is not decomposed by heat. The particle preparation technology according to the present invention may be applicable to the fields of food, cosmetics, biopolymer, polymer compositions, and pharmaceuticals.
摘要:
Disclosed is a camera module including a WLO (wafer level optic) which is manufactured as a wafer optical device; an image sensor which converts an optical signal from the WLO into an electric signal; a holder which functions as a housing of the camera module; and a substrate which has a circuit pattern and transfers the converted electrical signal to a main body, wherein a stumbling sill is formed at an outer edge portion of the substrate so that a lower end of the holder is mounted on the stumbling sill.
摘要:
A system for providing spatial-based context-aware service includes a database configured to store a geocontext including spatial information, one or more contexts, and sensor data; a sensor/context catalog server configured to manage meta data of the contexts and the sensor data; a context processing server configured to generate a list of contexts applicable to the mobile device based on the sensor data and the meta data upon a receipt of the sensor data from the mobile device; a geocontext search server configured to search the database for candidate geocontexts appropriate for the user of the mobile device by using the location information of the mobile device and the list of contexts; and a context-aware management server configured to generate a list of recommended services by executing the searched candidate geocontexts.
摘要:
The present invention relates to an apparatus for detecting partial discharge for electric power devices, comprising: an insulator having a predetermined shape; a receiving unit arranged inside or outside the insulator to receive signals of a plurality of sub-bands; and a connection electrode which transmits signals of a receiving electrode to a coaxial cable in conjunction with the connected coaxial cable.
摘要:
An air conditioner and a reverse-phase detection method thereof are provided. According to the air conditioner and the reverse-phase detection method thereof, it is possible to perform reverse-phase detection in real time by subtracting the voltage of one of two phases arbitrarily selected from the phases of an input three-phase alternating voltage from the voltage of the other phase and determining whether the input three-phase alternating voltage is reversed based on sign information of a voltage obtained by the subtraction. Thus, it is possible to prevent an air conditioner from malfunctioning due to a reversed input three-phase alternating voltage and to facilitate the management of an air conditioner.