摘要:
This invention relates to a hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons derived from oil, which includes (i) beta-zeolite, (ii) pseudo-boehmite, and (iii) one or more metals selected from among metals of Groups VIII and VIB, and which further includes a cocatalyst component, thereby producing a maximum amount of BTX (Benzene, Toluene, Xylene) from LCO (Light Cycle Oil).
摘要:
A vocal practic and voice practic system comprises a storage unit configured to store a reference waveform that is generated based on a trainer's period vocal sound during a predetermined sampling period, a recording unit configured to record a trainee's period vocal sound that is generated as the trainee sings or recites during the predetermined sampling period, a waveform converting unit configured to convert the trainee's period vocal sound into an initial period waveform, a waveform analyzing unit configured to extract the reference waveform from the storage unit and to compare the extracted reference waveform with the initial period waveform, and a display unit configured to display the extracted reference waveform and the initial period waveform.
摘要:
A dry sauna machine is provided, which adjusts temperature according to user's taste and adjust angle of heater according to user's sitting position. The machine includes a main body (10) for receiving a partial or whole body of the user, a heater (20) installed on floor surface of the main body (10), a far-infrared radiating member (30) installed on a top surface of the heater (20), and a foot stand (40) installed on both sides with respect to the heater (20) in order to avoid heat from the heater (20). And the far-infrared radiating member (30) has a groove on the top thereof for aroma oil.
摘要:
A dry sauna machine is provided, which adjusts temperature according to user's taste and adjust angle of heater according to user's sitting position. The machine includes a main body (10) for receiving a partial or whole body of the user, a heater (20) installed on floor surface of the main body (10), a far-infrared radiating member (30) installed on a top surface of the heater (20), and a foot stand (40) installed on both sides with respect to the heater (20) in order to avoid heat from the heater (20).
摘要:
A self-supporting carbon electrode can include, or consist essentially of, nanostructured carbon, for example, oxygen-functionalized nanostructured carbon.
摘要:
A display device is disclosed. In one aspect, the display device includes a display panel for displaying an image in at least two separate fields during a frame, a panel driver configured to transmit output data for each field corresponding to the at least two fields and drive the display panel according to each field, and a controller configured to analyze an image pattern corresponding to input data, and generate the output data for each field from the input data according to an analysis result of the pattern, or extract each field data from the input data according to a predetermined data alignment method and generate the output data for each field by using the field data.
摘要:
Provided is a method of synthesizing high-purity calcite capable of controlling a grain size thereof, by reacting an aqueous calcium chloride solution with CO2 gas under strong alkaline condition, to crystallize into white and ultra-fine grain calcite. The method of synthesizing fine-grain calcite according to the present disclosure can decrease super-saturation by producing calcite under the strong alkaline conditions, thereby suppressing generation and growth of grain, resulting in controlling the grain size. Therefore, the above method is useful in producing high-purity ultra-fine grain calcite and can control the grain size of calcite from several hundreds of nanometers to several tens of nanometers by regulating the concentration of an aqueous caustic soda solution.
摘要:
The present invention relates to a lithography method using tilted evaporation, and includes: (1) coating a resist on top of a substrate; (2) patterning the resist using a lithography process; (3) tilt-evaporating a first thin film material on an upper layer of the patterned resist to form a modified pattern mask; (4) evaporating a second thin film material on the top of the substrate with the modified pattern mask; and (5) removing the resist coated on the top of the substrate.