Abstract: A silicon solar cell including a carbon nanotube layer is provided. The carbon nanotube layer is disposed on at least one of front and back surfaces of a p-n junction silicon substrate which includes a p-type silicon layer and an n-type silicon layer. Accordingly, the intensity of the electric field applied to devices may be increased due to introduction of the carbon nanotube layer, resulting in improved photoelectric conversion efficiency.

Abstract: The present invention discloses a method for preparation of a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, comprising: preparing carbon nitride nanotubes by plasma chemical vapor deposition (CVD); dissolving the prepared carbon nitride nanotubes in triethyleneglycol to form solution and adding Fe (acetylacetonate)3 to the solution to obtain a mixture; and heating and cooling the mixture to form a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, in which the carbon nitride nanotubes are doped with magnetite nanoparticles.

Abstract: Disclosed are a novel hydrogen storage material with enhanced hydrogen storage capacity prepared by doping an organic framework material with light metal cations, and a method of using the same for hydrogen storage. The present inventive material has at least one phenyl group at each face of a triangular building unit, which is doped with metal cations such as alkali metal cations, alkali-earth metal cations, etc., so that the material exhibits greatly improved capacity of hydrogen absorption and desorption at room temperature and can provide hydrogen storage materials practically adapted for fuel batteries useable even at room temperature.

Abstract: A bit rate control method may include calculating a quality measure of a current frame and a mean of quality measures of two or more previous frames in order to calculate a deviation of the quality measure of the current frame from the mean of the quality measures of the two or more previous frames; comparing the deviation to a critical value measure; and controlling a quantization parameter in response to a result of the comparison. A bit rate control apparatus may include a quality measure calculator that calculates the quality measure of the current frame and the mean of the quality measures of the two or more previous frames in order to calculate the deviation; a comparator that compares the deviation to the critical value measure; and a quantization parameter setting unit that controls the quantization parameter in response to the result of the comparison.

Abstract: A flash memory device including memory cells, each memory cell configured to store bits, a sensing circuit configured to sequentially sense, for each memory cell, sets of the bits of the memory cell, a data rearrangement unit configured to receive words of data and to rearrange bits of the words to be stored in the memory cells, and an output circuit configured to output a group of the words using the sets of bits from one sensing, at least as early as during a subsequent sensing of sets of bits.

Abstract: Disclosed is a method for patterning a nanomaterial using solution evaporation. More particularly, the method for patterning a nanomaterial using solution evaporation includes; coating the nanomaterial with a polymer material and uniformly dispersing the coated nanomaterial in a solvent to prepare a solution containing the nanomaterial, and pouring the nanomaterial-containing solution on a substrate, enabling the nanomaterial to be patterned after evaporation of the solvent.

Abstract: Disclosed are a novel hydrogen storage material with enhanced hydrogen storage capacity prepared by doping an organic framework material with light metal cations, and a method of using the same for hydrogen storage. The present inventive material has at least one phenyl group at each face of a triangular building unit, which is doped with metal cations such as alkali metal cations, alkali-earth metal cations, etc., so that the material exhibits greatly improved capacity of hydrogen absorption and desorption at room temperature and can provide hydrogen storage materials practically adapted for fuel batteries useable even at room temperature.

Abstract: A ventilating device and an outdoor unit including the same are disclosed. More particularly, the present invention relates to a ventilating device including a counter-rotating fan having improved wind ventilation efficiency as well as minimized noise generated during the fan operation.

Abstract: A jog key of a portable terminal and an operation method thereof. The portable terminal includes a jog key for inputting a direction signal, a push signal, or a pull signal. A storage unit stores a key map for mapping a specific function to an operation signal of the jog key. And a control unit senses an input of the operation signal of the jog key and executes a function mapped to the input operation signal of the jog key. This may provide various functions using a jog key to improve convenience of a user.

Abstract: Disclosed is a titanate nanostructure, especially, represented by a chemical formula of AaBbTixOy wherein A and B are alkaline metals and 0?a?9, 0?b?9, 1?a+b?18, 1?x?10 and 2?y?20 with a, b, x and y each being an integer. A method for using the titanate nanostructure as a hydrogen storage medium is also provided.

Abstract: Disclosed herein is a composition for the treatment bone fracture comprising N-hydroxy-4-{5-[4-( 5-isopropyl-2-methyl-1,3-thiazol-4-yl)phenoxy]pentoxyl-benzamidine, 4-{5-[4-(5-isopropyl-2-methyl-1,3-thiazol-4-yl) phenoxy]pentoxy}-benzamidine or pharmaceutically acceptable salts thereof as a medicinally effective ingredient. The composition of the present invention can significantly reduce the volume of bony callus, and increase bony density and strength of bony callus, and decrease the contents of connective tissue and cartilage tissue in bony callus, and thus promote loss and ossification of the bony callus formed during the fracture healing process. Therefore, the composition of the present invention is useful for the treatment of bone fracture.

Abstract: This invention relates to a device and a method for transmitting channel information in a wireless communication system. The disclosed device and method are characterized by: estimating channels by dividing the channel matrix elements for a complex channel into a real number part and an imaginary number part; quantizing each channel which is estimated through the division into the real and imaginary number parts based on a preset boundary value; generating the channel information corresponding to the quantization value for the real and imaginary number parts of the channel matrix elements; and transmitting the generated channel information to a transmitter.

Abstract: The present invention relates to a method for manufacturing a transition metal-carbon nanotube hybrid material using nitrogen as a medium. The present invention is characterized in that nitrogen-added carbon nanotube is grown in the presence of metal catalyst particles by reacting an hydrocarbon gas with a nitrogen gas by a chemical vapor deposition (CVD) and a transition metal-carbon nanotube hybrid material where a transition metal is uniformly attached to the entire carbon nanotube structure in which nitrogen with a great chemical reactivity is added as heterogeneous elements is chemically manufactured. Therefore, the present invention does not use an acid treatment required to attach transition-metal atoms to the carbon-nanotube, a surface treating process using a surfactant and the like and an inhibitor for preventing the coagulation of the transition metal so that a simplification of the process is obtained and the method is an environment-friendly method.

Abstract: Disclosed is a titanate nanostructure, especially, represented by a chemical formula of NaKTi3O7. A method for preparation of a titanate nanostructure is also provided. The method includes mixing titanium dioxide powder with an alkaline solution to prepare a titanium dioxide solution; and carrying out hydrothermal synthesis of the prepared titanium dioxide solution at a temperature of 120° C. to 180° C. for 12 to 72 hours.

Abstract: The present application provides a C1-xNx nanotube with pores having nano-sized diameter ranging from 5 to 10 ?, where x ranges from 0.001 to 0.2, and a method for controlling the size and quantity of pores in said nanotube by reacting hydrocarbon gas, nitrogen gas, and oxygen gas or hydrogen gas together in the presence of metal catalyst and by controlling the concentration of nitrogen gas.

Abstract: The present invention discloses a method for preparation of a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, comprising: preparing carbon nitride nanotubes by plasma chemical vapor deposition (CVD); dissolving the prepared carbon nitride nanotubes in triethyleneglycol to form solution and adding Fe (acetylacetonate)3 to the solution to obtain a mixture; and heating and cooling the mixture to form a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, in which the carbon nitride nanotubes are doped with magnetite nanoparticles.

Abstract: Disclosed is a package substrate including a solder resist layer having pattern parts and a method of fabricating the same, in which the pattern parts are formed on the solder resist layer, thus increasing heat dissipation efficiency and minimizing the warpage of the substrate.

Abstract: A flash memory device including memory cells, each memory cell configured to store bits, a sensing circuit configured to sequentially sense, for each memory cell, sets of the bits of the memory cell, a data rearrangement unit configured to receive words of data and to rearrange bits of the words to be stored in the memory cells, and an output circuit configured to output a group of the words using the sets of bits from one sensing, at least as early as during a subsequent sensing of sets of bits.

Abstract: TiO2-xNx (0.01?x?0.2) nanotubes and a method for preparing the same are disclosed. More particularly, TiO2-xNx (0.01?x?0.2) nanotubes doped with nitrogen atoms by treating TiO2 nanotubes through nitrogen plasma to partially substitute oxygen portion of TiO2 nanotube with nitrogen, and a method for preparing the same are disclosed. The TiO2-xNx (0.01?x?0.2) nanotube of the present invention is prepared by doping nitrogen on a TiO2 nanotube to control an electronic structure and reduce a band gap of the TiO2 nanotube, so that the prepared TiO2-xNx (0.01?x?0.2) nanotube exhibits improved conductivity and extended light absorption range from a UV ray area up to a visible light area, thus having more enhanced applicable performance in optical and/or electrochemical aspects.

Abstract: A heat-releasing printed circuit board and semiconductor chip package are disclosed. The heat-releasing printed circuit board includes an insulation layer, on a surface of which a circuit pattern is formed, and a solder resist, which is stacked on the insulation layer, where the solder resist contains carbon nanotubes. The heat-releasing printed circuit board allows the heat generated in a semiconductor chip to be dispersed in several directions of the board or package, to improve heat-releasing property.