Abstract:
A ring-type FET may include a silicon base, a source formed on a portion of the silicon base through doping, a channel formed to encompass the source on a plane, a drain formed outside the channel, a dielectric layer formed on the source, the channel and the drain, and a gate provided on the dielectric layer, wherein a center of the source is spaced apart from a center of the channel, and the gate is formed of a metal material, disposed above the channel and configured to cover an upper face of the channel and overlap a portion of the source and a portion of the drain.
Abstract:
A photoacoustic-ultrasonic dual-mode endoscope includes: a probe and a probe driving unit, wherein the probe includes: a coaxially configured optical and electromagnetic rotary waveguide assembly including an optical fiber, the optical fiber including a core and a cladding, and a conductive path coaxially arranged with the optical fiber; a scanning tip located at an end of the coaxially configured optical and electromagnetic rotary waveguide assembly and configured to deliver a laser beam to an object to be examined and detect a photoacoustic signal and an ultrasonic signal generated from the object to be examined; and a plastic catheter surrounding outer surfaces of the coaxially configured optical and electromagnetic rotary waveguide assembly and the scanning tip, wherein the conductive path includes: a first conductive path including a portion coaxially arranged with the optical fiber; and a second conductive path including a portion coaxially arranged with the optical fiber and insulated from the first conductive path.
Abstract:
A chord distributed hash table based MapReduce system includes multiple servers and a job scheduler. The multiple servers include file systems and in-memory caches storing data based on a chord distributed hash table. The job scheduler manages the data stored in the file systems and the in-memory caches in a double-layered ring structure, when receiving a data access request for a specific file from an outside. The job scheduler allocates MapReduce tasks to the servers that store the file for which the data access request has been received among the multiple servers, and outputs a result value obtained by performing the MapReduce tasks in response to the data access request.
Abstract:
A triboelectric generator includes first and second electrodes spaced apart from each other, a first charging object on a surface of the first electrode facing the second electrode, a second charging object provided between the first charging object and the second electrode, and a grounding unit configured to intermittently interconnect the second charging object and a charge reservoir due to motion of the second charging object. The first charging object is configured to be positively charged due to contact. The second charging object is configured to be negatively charged due to contact.
Abstract:
A method for controlling a curvature of a display device as a control method of the curvature of the display device including a flexible display panel, a curvature change member, a controller, and a photo sensor includes: measuring an amount of a light incident to the flexible display panel by using a photo sensor; confirming a position of a part where the amount of the measured light is more than a predetermined reference value in the flexible display panel when the amount of the measured light is more than the reference value; and changing the curvature around the part where the amount of the measured light is more than the reference value in the flexible display panel by using the curvature change member.
Abstract:
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An electronic device for providing a streaming service includes a controller, an encoder operatively coupled with the controller, and a transmitter operatively coupled with the control unit, wherein the controller is configured to provide a network available bandwidth estimated in a transmission layer of the electronic device from the transmission layer to an application layer, generate stream data from initial data based on the network available bandwidth, and transmit the stream data to another electronic device.
Abstract:
An electrochemical biosensor using a sensing system includes a working electrode including an active surface modified through a linker; and an auxiliary electrode. The sensor has a high current value compared with an existing sensor and retains excellent stability and sensitivity, and thus can be expected to be easily used for sensing various kinds of biomaterials.
Abstract:
A system for and a method of measuring motions of a thumb and fingers of a user who wears a glove are provided. The method includes attaching first ends of first and second flexible wires to positions of the glove respectively corresponding to middle and proximal phalanxes of each finger, and connecting second ends of the first and second flexible wires to a sensing module so that the first and second flexible wires can move forward and backward while maintaining tension thereof in accordance with a motion of the finger. The method further includes, by the sensing module, measuring moved distances of the first and second flexible wires, such that rotary angles at corresponding joints in the thumb and fingers are calculated based on the measured moved distances.
Abstract:
The present invention relates to a method for providing a route guidance service for visually impaired people, the method comprising the steps of: when a predetermined application is selected through a user input, transmitting a request for a route guidance service together with location information acquired through the GPS of a user terminal simultaneously with execution of the selected application; servicing, by a route guidance server, search path information corresponding to an input destination on the basis of the location information received from the user terminal according to the route guidance service request from the user terminal; broadcasting, by the user terminal, an inquiry signal through a Bluetooth device search request, identifying an earphone by a device which transmits a response signal to the broadcasted inquiry signal, and performing paging with the identified earphone; and recognizing a user's walking direction on the basis of the search path information through outputting a signal by gyro sensors attached to both sides of the earphone according to a user's movement, converting the recognized result into a guidance sound according to a route guidance service rule, and outputting the guidance sound to the earphone.
Abstract:
The present invention provides a method of manufacturing a transparent electrode using an electrospinning method. The method of manufacturing a transparent electrode according to an embodiment of the present invention includes: spinning a nanomaterial and a polymer material together on a first substrate to form a coaxial double-layered fiber including the nanomaterial and the polymer material; and removing the polymer material from the coaxial double-layered fiber to form a transparent electrode including the nanomaterial.