摘要:
The present invention relates to an organic-transition metal complex which can safely and reversibly store hydrogen in a high capacity, and a process for preparing the same. In order to achieve the objects, the hydrogen storage material according to the invention comprises a complex generated by combination of an organic substance containing a hydroxyl (—OH) group(s) with a transition metal containing compound, which can more effectively store hydrogen with more than one transition metal being bonded per molecule. Examples of the organic substances containing hydroxyl (—OH) group(s) include alkyl derivatives such as ethylene glycol, trimethylene glycol and glycerol, and hydroxyl-containing aryl derivatives such as fluoroglucinol. As the transition metal, titanium (Ti), vanadium (V) and scandium (Sc), which can make Kubas binding, may be mentioned.
摘要:
There are disclosed embodiments for forming an enhanced elastic image in an ultrasound system. An elastic image of a target object may be formed by scanning N scan lines. A control unit divides the N scan lines into M scan lines groups by using an acquisition period necessary for transmitting and receiving ultrasound signals to acquire ultrasound data. An ultrasound data acquiring unit transmits ultrasound signals to a target object and receives the ultrasound signals reflected from the target object at a predetermined transmission/reception sequence for each of the M scan line groups. This forms ultrasound data corresponding to each of the M scan line groups while a pressure is applied to the target object. An elastic image forming unit forms at least one sub elastic image corresponding to each of the M scan line groups based on the ultrasound data. The elastic forming unit sums M sub elastic images corresponding to the respective M scan line groups to thereby form an elastic image of the target object.
摘要:
There is provided a wide-band direct conversion transmitting apparatus including: a local oscillation unit generating first, second, and third oscillation signal pairs each including a pair of signals having a phase difference of 90°; an image rejection mixer unit mixing baseband transmission signals including an I signal and a Q signal having a phase difference of 90° with the first oscillation signal pair; a harmonic rejection mixer unit mixing each of the first, second, and third oscillation signal pairs with the baseband transmission signals; and an output signal selecting unit selecting output signals from the image rejection mixer unit or from the harmonic rejection mixer unit.
摘要:
In a method of compounding an ultrasound image, ultrasound signals having a transmission frequency are transmitted to a target object at a predetermined steer angle. Then, signals reflected by the target object are received. Based on the received signals, an image frame is formed. By repeating the above steps with different transmission frequencies, two or more image frames are obtained. The obtained image frames are then combined to provide a compound ultrasound image. The steer angle varies based on the transmission frequency.
摘要:
A microwave range having a hood for removing contaminated air includes a chamber having an inner cavity configured to receive items to be heated; an electric component room containing electric components, the electric component room being located above an upper wall of the chamber; and an outer case defining at least one passage between the chamber and the outer case through which contaminated air is received and discharged, and through which air for cooling the electric components flows.
摘要:
A DTV receiver test stream generator which prevents discontinuity phenomenon of a video and an audio, a method for generating the DTV receiver test stream, and a recording medium where the DTV test stream having no discontinuity phenomenon is recorded. To this end, a test stream for a function test or a performance valuation of the DTV receiver is generated and a reproduction time is equalized on the basis of the least common multiple of a video frame time, an audio frame time, and a TS packet time when the test stream is repeatedly reproduced. According to this, when used at a DTV production field where a test pattern is used or at a broadcasting system which repeatedly transmits the DTV stream of a limited length such as a stationary image, a reliability of the DTV receiver test can be ensured.
摘要:
An induction heating cooker with improved discharge capability and cooling performance comprises a cooking plate 200 formed with a cooking vessel thereon; a cooking body 310 coupled to the cooking plate 200 to define a receiving space 311 therebetween and having an exhaust port 312 communicating with the receiving space 311; a plurality of unit induction heating modules 410 and 420 installed within the receiving space 311 to be partitioned from each other, each having a heating unit 412 or 422, a blowing fan 413 or 423 disposed close to the heating unit to cool the heating unit 412 or 422, and an exhaust passage 415 or 425 for allowing exhaust air generated by the blowing fan 413 or 423 to be guided to and discharged through the exhaust port 312; and a bridge duct 810 for allowing the exhaust passages 415 and 425 of the unit induction heating modules 410 and 420 to communicate with each other, to thereby enable to improve the cooling performance.
摘要:
A heat dissipation structure of an IC includes a circuit board provided with through holes perforated thereinto, an IC mounted on the upper surface of the circuit board, a solder filling a space between the circuit board and the IC via the through holes and being cured, and solder lands formed on the circuit board and attached with the solder.
摘要:
The present disclosure provides an ultrasonic diagnostic apparatus. The ultrasonic diagnostic apparatus includes a fastening part having a band shape and wound around a diagnosis object, and a mover moving a probe along the fastening part.
摘要:
Embodiments for processing ultrasound images based on a motion degree of an ultrasound probe in an ultrasound system are disclosed. In one embodiment, the ultrasound system includes: an ultrasound acquisition unit including an ultrasound probe for transmitting ultrasound signals to a target object and receiving echo signals, the ultrasound acquisition unit being configured to form a plurality of ultrasound data based on the echo signals; and a processing unit coupled to the ultrasound acquisition unit and configured to form first to Nth ultrasound images by using the plurality of ultrasound data, wherein N is a positive integer greater than 1, the processing unit being further configured to estimate a motion degree of an ultrasound probe and process the Nth ultrasound image based on the motion degree.