Abstract: A device for evaluating integrity of an underground structure by using electromagnetic waves includes a plurality of main reinforcing bars arranged in a vertical direction in an underground structure, a plurality of measurement cables extending vertically to be adjacent to the main reinforcing bars, respectively, at least one impedance change unit which is provided on each of the measurement cables, is electrically connected to the measurement cable, and has a characteristic impedance different from a characteristic impedance of the measurement cable, and an electromagnetic wave measurement unit for detecting a change point of a characteristic impedance as a defect point of the underground structure by providing an electromagnetic wave by using, as a signal transmission line, one of the plurality of measurement cables and one of the plurality of main reinforcing bars, or one pair of measurement cables selected from the plurality of measurement cables.

Abstract: A device for evaluating integrity of an underground structure by using electromagnetic waves includes a plurality of main reinforcing bars arranged in a vertical direction in an underground structure, a plurality of measurement cables extending vertically to be adjacent to the main reinforcing bars, respectively, at least one impedance change unit which is provided on each of the measurement cables, is electrically connected to the measurement cable, and has a characteristic impedance different from a characteristic impedance of the measurement cable, and an electromagnetic wave measurement unit for detecting a change point of a characteristic impedance as a defect point of the underground structure by providing an electromagnetic wave by using, as a signal transmission line, one of the plurality of measurement cables and one of the plurality of main reinforcing bars, or one pair of measurement cables selected from the plurality of measurement cables.

Abstract: A device for evaluating characteristics of a target ground containing a metal component is proposed. The device includes a penetration probe having a main frame and a pair of side frames respectively installed at opposite side ends of the main frame, wherein each side frame has a lower end thereof extending downward from the main frame; a plurality of electrodes installed to be exposed to outside on the main frame; an electrode measurement part for measuring apparent chargeability of the target ground by applying power for measurement to the plurality of electrodes; and a main processor for calculating a weight ratio of a metal component of the target ground on the basis of the apparent chargeability measured by the electrode measurement part and calculating a volume ratio of the metal component of the target ground on the basis of the calculated weight ratio of the metal component.

Abstract: An apparatus and method are provided. The method includes reproducing, by a portable phone, multimedia content via an external output device while the portable phone is coupled with the external output device, determining whether the portable phone is decoupled from the external output device, and terminating the reproducing of the multimedia content based at least in part on a determination that the portable phone is decoupled from the external output device.

Abstract: A device for evaluating characteristics of a target ground containing a metal component is proposed. The device includes: a penetration probe having a main frame and a pair of side frames respectively installed at opposite side ends of the main frame, wherein each side frame has a lower end thereof extending downward from the main frame; a plurality of electrodes installed to be exposed to outside on the main frame; an electrode measurement part for measuring apparent chargeability of the target ground by applying power for measurement to the plurality of electrodes; and a main processor for calculating a weight ratio of a metal component of the target ground on the basis of the apparent chargeability measured by the electrode measurement part and calculating a volume ratio of the metal component of the target ground on the basis of the calculated weight ratio of the metal component.

Abstract: An apparatus and method are provided. The method includes reproducing, by a portable phone, multimedia content via an external output device while the portable phone is coupled with the external output device, determining whether the portable phone is decoupled from the external output device, and terminating the reproducing of the multimedia content based at least in part on a determination that the portable phone is decoupled from the external output device.

Abstract: An apparatus and method are provided. The method includes reproducing, by a portable phone, multimedia content via an external output device while the portable phone is coupled with the external output device, determining whether the portable phone is decoupled from the external output device, and terminating the reproducing of the multimedia content based at least in part on a determination that the portable phone is decoupled from the external output device.

Abstract: An apparatus and method are provided. The method includes reproducing, by a portable phone, multimedia content via an external output device while the portable phone is coupled with the external output device, determining whether the portable phone is decoupled from the external output device, and terminating the reproducing of the multimedia content based at least in part on a determination that the portable phone is decoupled from the external output device.

Abstract: An apparatus and method are provided. The method includes reproducing, by a portable phone, multimedia content via an external output device while the portable phone is coupled with the external output device, determining whether the portable phone is decoupled from the external output device, and terminating the reproducing of the multimedia content based at least in part on a determination that the portable phone is decoupled from the external output device.

Abstract: A method of forming fine patterns of semiconductor devices is disclosed. The method comprises forming a hard mask layer on an etch target, which includes first and second regions. The hard mask layer may further have first and second preliminary mask patterns formed on the same. Furthermore, a spacer layer may be formed on the first and second preliminary mask patterns. The spacer layer and the first and second preliminary mask patterns may be partially removed to form first and second spacers on sidewalls of the first and second preliminary mask patterns, respectively. The second spacer in the second region may have a top surface higher than a top surface of the first spacer in the first region. The height differences between the spacers allow forming of first and second patterns in the first and second regions, and thereby forming fine patterns of semiconductor devices.

Abstract: A method of forming fine patterns of semiconductor devices is disclosed. The method comprises forming a hard mask layer on an etch target, which includes first and second regions. The hard mask layer may further have first and second preliminary mask patterns formed on the same. Furthermore, a spacer layer may be formed on the first and second preliminary mask patterns. The spacer layer and the first and second preliminary mask patterns may be partially removed to form first and second spacers on sidewalls of the first and second preliminary mask patterns, respectively. The second spacer in the second region may have a top surface higher than a top surface of the first spacer in the first region. The height differences between the spacers allow forming of first and second patterns in the first and second regions, and thereby forming fine patterns of semiconductor devices.

Abstract: Mobile communication terminals and methods are provided. A mobile communication terminal includes a transceiver, audio processing unit, speaker, connecting unit, display unit, input unit, and control unit. The control unit is configured to control to display, while in a silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control to reproduce the music file and to output audio signals corresponding thereto through the speaker, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, and output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control reproduction of a music file depending upon detection of a change of a connection state of an external audio output device.

Abstract: Mobile communication terminals and methods are provided. A mobile communication terminal includes a transceiver, audio processing unit, speaker, connecting unit, display unit, input unit, and control unit. The control unit is configured to control to display, while in a silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control to reproduce the music file and to output audio signals corresponding thereto through the speaker, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, and output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control reproduction of a music file depending upon detection of a change of a connection state of an external audio output device.

Abstract: An apparatus and method are provided. The method includes reproducing, by a portable phone, multimedia content via an external output device while the portable phone is coupled with the external output device, determining whether the portable phone is decoupled from the external output device, and terminating the reproducing of the multimedia content based at least in part on a determination that the portable phone is decoupled from the external output device.

Abstract: Mobile communication terminals and methods are provided. A mobile communication terminal includes a transceiver, audio processing unit, speaker, connecting unit, display unit, input unit, and control unit. The control unit is configured to control to display, while in a silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control to reproduce the music file and to output audio signals corresponding thereto through the speaker, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, and output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control reproduction of a music file depending upon detection of a change of a connection state of an external audio output device.

Abstract: A mobile communication terminal is provided including an audio processing unit, a speaker, a connecting unit that connects to an external audio output device and indicates whether the external audio output device is connected, and a control unit configured to, while in a silent mode, control the audio processing unit to reproduce a music file and to output audio signals, corresponding to the reproduced music file, through the speaker, the silent mode being a mode wherein a vibration signal is generated upon receiving an incoming call, if the external audio output device is connected to the connecting unit, output the audio signals to the external audio output device, and if the external audio output device is disconnected from the connecting unit while the audio signals are being output to the external audio output device, control the display unit to display a user interface for continuing reproduction of the music file.

Abstract: A method for reproducing a music file of a mobile communication terminal includes outputting a confirmation message for determining whether a music file is to be reproduced if reproduction of the music file is requested during the manner mode of the mobile communication terminal, and reproducing the music file if an external output device is connected to the mobile communication terminal. Since a user can reproduce music files without any complex key manipulation, even during the manner mode of the mobile communication terminal, the user can listen to desired music easily, thereby improving the convenience of the mobile communication terminal.

Abstract: A mobile communication terminal is provided including an audio processing unit, a speaker, a connecting unit that connects to an external audio output device and indicates whether the external audio output device is connected, and a control unit configured to, while in a silent mode, control the audio processing unit to reproduce a music file and to output audio signals, corresponding to the reproduced music file, through the speaker, the silent mode being a mode wherein a vibration signal is generated upon receiving an incoming call, if the external audio output device is connected to the connecting unit, output the audio signals to the external audio output device, and if the external audio output device is disconnected from the connecting unit while the audio signals are being output to the external audio output device, control the display unit to display a user interface for continuing reproduction of the music file.

Abstract: An endless hot rolling material shear-joining method capable of threading hot rolling materials in a finish rolling process without strip breakage by controlling joining conditions for the hot rolling materials in an endless hot rolling process for high carbon steel, and an endless hot rolling plant therefor are disclosed. The shear-joining method for endless hot rolling materials of high carbon steel includes shear-joining high carbon steel metal bars comprising, in terms of weight %, 0.30% to 1.20% C, inevitable impurities, and balance Fe, or comprising 0.15% to 1.5% C containing at least one of Cr, Ni, Mo, V, Ti, W, B, Nb, and Sb, inevitable impurities, and balance Fe, such that a joined surface of the joined metal bars is formed to be inclined in a thickness direction of the metal bars, in a hot rolling plant by a joiner adapted to join the metal bars after overlapping tail part of a leading one of the metal bar and top part of a trailing metal bar.

Abstract: A lever button in which at least one side thereof is elastically supported and an electronic device therewith is provided. The lever button includes a manipulation part and an elastic part having one end supported by the manipulation part and another end supported by a support frame. The elastic part comprises at least one cantilever.