Abstract: A printing method performed by an image forming apparatus is provided. The image forming apparatus receives job information of content, and generates payment amount information based on the job information of the content. The image forming apparatus receives payment method information from a user, and generates billing information by using the payment amount information and the payment method information. The image forming apparatus transmits the billing information to a payment system.

Abstract: A hybrid beamforming based cooperative transmission system may comprise comprising a centralized processor (CP), access nodes (ANs) connected to the CP, and fronthaul links connecting the CP to the ANs. The CP may provide an outer precoding matrix for a first AN of the ANs, which is derived from global statistical channel state information (CSI) generated from local statistical CSI collected from the ANs, to the first AN via the fronthaul link; and the first AN may configure a radio frequency (RF) precoder of the first AN based on the outer precoding matrix, and configure a digital precoder of the first AN based on local instantaneous effective CSI between the first AN and first terminals to be served by the first AN.

Abstract: A stretchable display according to one embodiment of the present invention comprises: a hybrid stretchable substrate divided into a low stretchable region and a high stretchable region having a modulus lower than that of the low stretchable region; a driving element layer including a driving element on the low stretchable region so as to control a light emitting layer, and wiring on the high stretchable region so as to be electrically connected to a part of the driving element to apply an electrical signal; and the light emitting layer provided on the driving element layer, and electrically connected to the driving element layer to emit light, wherein, between the driving element and the wiring, the wiring can overlap a stretchable mask pattern having a shape corresponding to either the low stretchable region or high stretchable region.

Abstract: Disclosed is an operation method of a base station in a mobile communication system. The operation method may comprise performing a beam management procedure for selecting at least one beam and transmitting a different channel state information reference signal (CSI-RS) for each beam to a terminal through the at least one beam; receiving a beam quality information for the at least one beam from the terminal; transmitting at least one CSI-RS for CSI acquisition configured according a beam management update procedure based on the beam quality information to the terminal through at least one beam; and receiving a CSI based the CSI-RS for CSI acquisition from the terminal.

Abstract: Disclosed is a continuous rapid solidification apparatus, which includes a cooling roll configured to cool a molten metal supplied to an outer circumference surface thereof; a crucible configured to supply the cooling roll with the molten metal; and two or more molten metal supplies configured to melt raw material metal and alternately supply the crucible with the molten metal.

Abstract: Disclosed is a continuous rapid solidification apparatus, which has a cooling roll configured to cool a molten metal supplied to an outer circumference surface thereof; a crucible configured to supply the cooling roll with the molten metal; a molten metal supply configured to melt a raw material metal and supply the crucible with the molten metal; a first chamber configured to form a sealed space where the molten metal supplied from the crucible is cooled by the cooling roll; and a second chamber configured to be formed of a space separated from the first chamber and to form a sealed space where the molten metal is supplied to the crucible by the molten metal supply.

Abstract: Disclosed is a negative active material having a reduced volume change during charge/discharge. A fine crystalline region exists on a matrix of an alloy, and lithium is easily dispersed due to the fine crystalline region. In the negative active material, a ratio of the fine crystalline region is represented by an amorphization degree, and is optimized in designing a battery through a measurement of an expansion rate after 50 cycles. The negative active material is used for a secondary battery and includes an alloy formed by a chemical formula below: (a ratio of Ti to Fe is 1:1 and a ratio of Si:Ti or Si:Fe has a range of 5:1 to 9:1.) Si—?xTiyFezAlu where x, y, z, and u are at %, x: 1?(y+z+u), y: 0.09 to 0.14, z: 0.09 to 0.14, and u: larger than 0.01 and less than 0.2.

Abstract: An organic light emitting diode (OLED) display including: a substrate; a semiconductor layer disposed on the substrate and including a switching semiconductor layer and a driving semiconductor layer connected to the switching semiconductor layer; a first gate insulating layer disposed on the semiconductor layer; a switching gate electrode and a driving gate electrode disposed on the first gate insulating layer and respectively overlapping with the switching semiconductor layer and the driving semiconductor layer; a second gate insulating layer disposed on the switching gate electrode and the driving gate electrode; a driving voltage line configured to transmit a driving voltage and disposed on the second gate insulating layer; an interlayer insulating layer disposed on the driving voltage line and the second gate insulating layer; and a data line configured to transmit a data signal and disposed on the interlayer insulating layer.

Abstract: The present invention relates to a 5th-generation (5G) or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4th-generation (4G) communication system, such as long term evolution (LTE), and subsequent systems. The present invention provides a method by which a mobile station (MS) operates a beam in a communication system supporting a hybrid multiple-input multiple-output (MIMO) mode, the method comprising the steps of: receiving, from a base station (BS), information related to the number of beams to be used, by the BS, for a beam training process; receiving, from the BS, a downlink reference signal (RS); performing a channel estimation process on the basis of the downlink RS; and transmitting, to the BS, information related to the number of beams to be used by the MS, after performing the channel estimation process.

Abstract: Methods of synthesis of hypervalent iodine reagents and methods for oxidation of organic compounds are disclosed.

Abstract: The present invention relates to an uplink control information transmission method and device which can improve channel estimation performance of a base station. A terminal operation method for transmitting uplink control information to a base station, according to an embodiment of the present invention, comprises the steps of: receiving, from the base station, resource location information for transmission of a UCI channel; mapping UCI to at least one symbol on the basis of the resource location information, and mapping a reference signal in consideration of frequency selectivity characteristics and time selectivity characteristics of a wireless channel; and transmitting, to the base station, a subframe including the at least one symbol.

Abstract: A display apparatus is provided. The display apparatus includes: a display panel unit which comprises a first panel region corresponding to an opaque display region, and a second panel region corresponding to a transparent display region, a panel driving unit which drives the first panel region and the second panel region independently, and a controller which controls to display a main image on the opaque display region and display an additional image on the transparent display region.

Abstract: A MEMS microphone includes a cavity extending portion that increases the size of the cavity. The cavity extending portion can be sloped or stepped in order to create a desired profile of the extended cavity shape. Thus, the volume of the cavity may be increased in order to decrease the compliance and to increase a Signal to Noise Ratio.

Abstract: A MEMS microphone includes a substrate having a cavity defining a vibration area and a peripheral area surrounding the vibration area, a back plate disposed over the substrate and having a plurality of acoustic holes, a diaphragm disposed between the substrate and the back plate to cover the cavity, the diaphragm defining an air gap together with the back plate, and the diaphragm sensing an acoustic pressure to generate a displacement, a plurality of anchors arranged along a circumference of the diaphragm, and spaced apart from each other to define a plurality of slits configured to serve as first vent channels for communicating the air gap with the cavity, and at least one vent hole penetrating through the diaphragm, and serving as a second vent channel for communicating the air gap with the cavity.

Abstract: A display apparatus, a driving method of a display apparatus, and a computer readable recording are provided. The method includes displaying an image on an entire screen area of a display unit, and in response to a user or a user device approaching (e.g., being detected by) the display unit, controlling the display unit to reduce the image and display the reduced image in a first area of the screen area and to control a second area of the screen area other than the first area to operate as a mirror.

Abstract: The present invention relates to a negative active material for a secondary battery, the anode active material comprising: an Si main phase including crystalline Si; and a matrix coexisting with the Si main phase, wherein at least a part of the matrix has a crystal lattice parameter which is one among n times, 1/n times, n?2 times, n/?2 times, and n?5 times (n is an integer) that of the Si main phase.

Abstract: An operation method for a communication node transmitting system information in a communication network is an operation method for a base station which transmits system information in a communication network, and includes: configuring information on a request time when system information is requested and a transmission time when the system information is transmitted in a communication network; transmitting a message including the configured information on the request time and the transmission time by using a broadcast-based method; receiving, from at least one user equipment included in the communication network, a message requesting the system information on the basis of the request time; and transmitting a message including the system information to the at least one user equipment on the basis of the transmission time.

Abstract: A vibration reduction device for a vehicle seat that can reduce forward/backward vibration when the vehicle is stopped with the engine idling. The vibration reduction device includes a weight mounted through an elastic body in the seat back or the headrest of the seat.

Abstract: A dry eye syndrome alert system through posture and work detection, includes: a data collecting unit configured to detect a posture of a user to collect posture data of the user and preprocess the posture data; an eye blink frequency calculating unit configured to identify a posture change of the user on the basis of the posture data, calculate a motion variability on the basis of the posture change, and estimate an eye blink frequency of the user on the basis of the motion variability; and a diagnosis and alert output unit configured to store data regarding the estimated eye blink frequency, compare the estimated eye blink frequency with a preset reference value, and output an alert to the user when the estimated eye blink frequency is less than or equal to the preset reference value.