Abstract: There are provided a magnetic resonance imaging device and a method of controlling a MRI device. The MRI device includes an RF transmitting coil configured to transmit an RF to an object on a table; an object scanning unit including a position detecting unit configured to detect a position of the object and a thickness detecting unit configured to detect a thickness of the object, and configured to recognize a body shape of the object; and a control unit configured to regulate the RF to be transmitted, thereby compensating an RF field based on the recognized body shape of the object.

Abstract: An apparatus for capturing a magnetic resonance (MR) image includes: a radio frequency (RF) transmitter which transmits an RF pulse sequence including a spiral pulse sequence having at least one spiral trajectory and a first blade having at least one parallel trajectory and intersecting the at least one spiral trajectory on a center of k-space; and a data processor which obtains the MR signal in response to the transmitted RF pulse sequence.

Abstract: An MRI apparatus includes a data acquirer configured to under-sample MR signals, respectively received from channel coils included in a radio frequency (RF) multi-coil, at non-uniform intervals to acquire pieces of data set; and an image processor configured to restore pieces of K-space data respectively corresponding to the channel coils by using a positional relationship based on a spatial distance between a reference data set among the acquired pieces of data set and at least two of data set among the acquired pieces of data set, in a K-space.

Abstract: Disclosed are a magnetic resonance imaging (MRI) apparatus and method. The MRI apparatus includes a data acquirer, which performs under-sampling of MR signals, respectively received from a plurality of channel coils included in a radio frequency (RF) multi-coil, at non-uniform intervals to acquire a plurality of pieces of line data, and an image processor that restores a plurality of pieces of K-space data respectively corresponding to the plurality of channel coils by using a relationship between the acquired plurality of pieces of line data, thereby restoring an MR image with reduced aliasing artifacts.

Abstract: An MRI apparatus includes a data processor for obtaining first k space data including a first unacquired line by undersampling an MR signal based on a first value of an MR parameter, and for obtaining second k space data including a second unacquired line by undersampling an MR signal based on a second value of the MR parameter; and an image processor for interpolating a portion of first unacquired line data in the first k space data based on the second k space data, and a portion of second unacquired line data in the second k space data based on the first k space data.

Abstract: An MRI apparatus includes: a receive coil assembly including channels, and configured to receive an MR signal from an object; a data generator configured to generate undersampled image data on a k-space based on the MR signal; and a reconstructed image generator configured to generate a first reconstructed image from the undersampled image data using a parallel imaging method, and a second reconstructed image from the undersampled image data using compressed sensing. According to the MRI apparatus, since image reconstruction is performed using random undersampled image data, a parallel imaging method, and compressed sensing, it is possible to increase a speed of image acquisition and, at the same time, to improve the quality of images.

Abstract: A magnetic resonance imaging (MRI) apparatus and method are provided. The MRI apparatus includes a first interpolator configured to generate a plurality of first interpolation data by performing calibration on a plurality of undersampled K-space data obtained from a plurality of channel coils in a radio frequency (RF) multi-coil, respectively, and a second interpolator configured to generate a plurality of second interpolation data by performing calibration on a plurality of filtered data obtained by filtering the first interpolation data using a plurality of high-pass filters.

Abstract: The MRI apparatus includes a data processor, which time-serially performs undersampling on MR signals respectively received by coil channels included in a radio frequency (RF) multi-coil to acquire undersampled K-t space data, and an image processor that acquires a time-space correlation coefficient, based on noise information of the coil channels, and restores pieces of unacquired line data from the undersampled K-t space data by using the time-space correlation coefficient to acquire restored K-t space data, thereby increasing an accuracy of the time-space correlation coefficient to improve a quality of an image.

Abstract: Disclosed are a magnetic resonance imaging (MRI) apparatus and method. The MRI apparatus includes a data acquirer, which performs under-sampling of MR signals, respectively received from a plurality of channel coils included in a radio frequency (RF) multi-coil, at non-uniform intervals to acquire a plurality of pieces of line data, and an image processor that restores a plurality of pieces of K-space data respectively corresponding to the plurality of channel coils by using a relationship between the acquired plurality of pieces of line data, thereby restoring an MR image with reduced aliasing artifacts.

Abstract: An apparatus for capturing a magnetic resonance (MR) image includes: a radio frequency (RF) transmitter which transmits an RF pulse sequence including a spiral pulse sequence having at least one spiral trajectory and a first blade having at least one parallel trajectory and intersecting the at least one spiral trajectory on a center of k-space; and a data processor which obtains the MR signal in response to the transmitted RF pulse sequence.

Abstract: When an RF pulse sequence is applied to obtain an MR signal, a pulse sequence and a blade pulse sequence that pass a center of a k-space are applied, and thus an over-sampling at the center of a k-space in a short scanning time may be enabled. Therefore, a method for capturing an MR image that is robust against a motion artifact includes applying a radio frequency (RF) pulse sequence; obtaining an MR signal in response to the applied RF pulse sequence; and generating an MR image from the obtained MR signal.

Abstract: Disclosed is a polyimide nanocomposite, which is prepared by mixing modified graphene oxide, polyamic acid, and a solvent to obtain a mixture solution, and heat-curing the mixture solution.

Abstract: When an RF pulse sequence is applied to obtain an MR signal, a pulse sequence and a blade pulse sequence that pass a center of a k-space are applied, and thus an over-sampling at the center of a k-space in a short scanning time may be enabled. Therefore, a method for capturing an MR image that is robust against a motion artifact includes applying a radio frequency (RF) pulse sequence; obtaining an MR signal in response to the applied RF pulse sequence; and generating an MR image from the obtained MR signal.

Abstract: Disclosed is a polyimide nanocomposite, which is prepared by mixing modified graphene oxide, polyamic acid, and a solvent to obtain a mixture solution, and heat-curing the mixture solution.

Abstract: Disclosed herein is a golf ball which has not only an air resistance similar to or smaller than that of a dimpled golf ball, but also a significantly reduced area ratio of grooves relative to the total surface area of the golf ball, thereby achieving an enhanced carry distance and high accuracy in the directionality of putting. The golf ball has net-shaped grooves formed on an outer surface of a sphere.

Abstract: Disclosed is a combined DMB and mobile communication antenna apparatus for a mobile communication terminal. The antenna apparatus includes one whip antenna for receiving both signals in a DMB frequency band and in a mobile communication frequency band, a first contact coupled to the whip antenna to receive the signal in the mobile communication frequency band from the whip antenna, and a second contact located under the first contact within a terminal main body and coming in contact with the whip antenna at a lower end of the whip antenna to receive the signal in the DMB frequency band when the whip antenna is drawn out.

Abstract: The prefabricating rack frame are comprised of a column and a cross member. The column have plural slots along a longitudinal direction at an even interval, and the cross member have a pair of hooks to be inserted into respective slot, and a location restrictor is formed between the upper and the lower hook and bent rectangular to the hook, and tightly contracted on the outer surface of the column. The cross member further has a pit and a reinforcement rib; the pit is formed at the outer corner where each longitudinal end of the cross member meets the foot of the location restrictor; and a reinforcement rib is provided at the inner corner of the location restrictor and its configuration counterposes to that of the pit.

Abstract: The prefabricating rack frame are comprised of a column and a cross member. The column is comprised of plural inner slots and plural outer slots. The inner slots are arranged in one or two vertical row in the center. The outer slots are formed at the respective outer side of each line of the inner slot, and each outer slot is located between the upper and lower row of the inner slot at equal interval. A location restrictor of the cross member is bent parallel to the upper horizontal flange, by which the location restrictor is fully contacted on the side surface of the column along the upper horizontal flange. A hole is provided at the vertical web so as to overlap any of the round openings. The round openings and the hole are for engaging the column and the cross member by the screw.

Abstract: Disclosed is a combined DMB and mobile communication antenna apparatus for a mobile communication terminal. The antenna apparatus includes one whip antenna for receiving both signals in a DMB frequency band and in a mobile communication frequency band, a first contact coupled to the whip antenna to receive the signal in the mobile communication frequency band from the whip antenna, and a second contact located under the first contact within a terminal main body and coming in contact with the whip antenna at a lower end of the whip antenna to receive the signal in the DMB frequency band when the whip antenna is drawn out.

Abstract: Disclosed is a battery power consumption control apparatus and a method for controlling the same in a multi-function terminal, which has at least two functions and is supplied with electric power from one battery, the battery consumption control apparatus including a battery information reading unit for reading capacity of the battery; a memory for storing information about function executable time periods assigned to at least two functions equally or differentially according to the functions within an entire capacity range of the battery; and a control unit for controlling a selected function to be performed for only a time period allowed according to corresponding execution time information when a user selects the function.