摘要:
The present invention provides a method for effectively extracting useful ingredients from an umbilical cord. The present invention provides an umbilical cord extract including the useful ingredients. The umbilical cord extract, according to the present invention, can be used as a serum substitute for cultivating ordinary cells and stem cells from an animal. Also, the umbilical cord extract, according to the present invention, can be used for a filler and a dressing for tissue restoration, and for a cosmetic composition for improving the skin. In addition, the present invention relates to a composition for a medium for separating and stem cells derived from tissue, such as an umbilical cord and fatty tissue, and to a method for separating and cultivating stem cells derived from the tissue using the same.
摘要:
The present invention relates to a medical composite biomaterial. More specifically, the present invention relates to a medical composite biomaterial including collagen and a hyaluronic acid derivative. Also, the present invention relates to a cartilage cell treating agent using the biomaterial and stem cells derived from a mammal umbilical cord. The biomaterial does not cause an immune reaction, has superior durability, and the cartilage cell treating agent comprising the biomaterial and the stem cells enables arthroscopic surgery, thereby reducing pain of the patient and effectively treat of degenerative arthritis and cartilage damage.
摘要:
A method for reducing a thickness variation of a nitride layer in a shallow trench isolation (STI) CMP process is provided, the method including forming an active region pattern in an alignment key region of a scribe lane where a device isolation film is formed at an ISO level, and forming a dummy active region pattern substantially adjacent to a vernier key pattern in the scribe lane during formation of the vernier key pattern, wherein the dummy active region pattern is spaced apart from the vernier key pattern by a known distance. Preferably, the active region pattern and the dummy active region pattern are formed prior to the STI CMP process.
摘要:
A packet converting apparatus and method is disclosed, in which audio packet data of various types used in cable/radio networks can effectively be converted. The packet converting apparatus includes a bit unpacking unit for bit unpacking first type packet data, a parameter inverse quantization unit for inverse quantizing the unpacked data to obtain a main parameter of the first type packet data, a parameter converter for converting the obtained main parameter to a parameter of second type packet data through inter-frame interpolation, a quantization unit for quantizing the second type parameter converted by the parameter converter, and a bit packing unit for bit packing the quantized data to reassemble the bit packed data to second type packet data and output the second type packet data to a destination.
摘要:
A voiced/unvoiced information estimation system uses input spectrum and synthetic spectrum to produce a voicing level spectrum. The estimation system uses a spectrum difference calculation unit to normalize a spectrum difference energy for each harmonic band in unit of harmonic band, and further uses a voicing level calculation unit to calculate a voicing level. The voicing level of each harmonic band has a continuous value between 1 and 0. The estimation system is effective in vector quantization of voiced/unvoiced information at a low bit rate. Because it is unnecessary to calculate a threshold for deciding a voiced/unvoiced information, a decision anomaly occurring due to threshold is eliminated, and the accuracy of a voicing level is improved. Furthermore, since a spectrum is represented by mixing a voiced element and a unvoiced element in a harmonic band, the estimation system improves the audio quality of a combined sound.
摘要:
The chemical mechanical polishing of a semiconductor device includes polishing a target layer to be polished through a chemical reaction by slurry and a mechanical process by a polishing pad. Then performing a post cleaning composed of cleaning, rinsing and drying of the surface of the polished target layer. The parts for cleaning, rinsing and drying procedures are arranged in a row and the post cleaning is performed in a scan manner using a bar type module. Provided at the cleaning and rinsing parts, a solution supplying nozzle and a retrieving nozzle disposed at both sides of the solution supplying nozzle. Finally, removing the solution supplied to the target layer to be polished immediately after the solution comes in contact with the target layer.
摘要:
A method for planarizing a layer of a semiconductor device includes heating the layer to exhibit flowability, and applying pressure through an optically flat surface layer onto the layer to planarize the layer. And the planarizing method further comprises etch-back or chemical-mechanical polishing on the planarized layer.
摘要:
A method for searching a codebook which predicts a residual element of an input voice signal includes combining each track of the input signal, forming track units including at least two tracks, and determining a pulse code for each track. The method further includes calculating energy for each track using an energy formula including a vector dot product, arranging or selecting codewords in a small track energy order, and searching or selecting an optimal pulse for a single- or double-pulse track of the selected codeword.
摘要:
An apparatus for converting voice packets transmitted/received through a network includes a first transcoder for performing at least one of bit-unpacking and unquantization on an encoded packet at a first encoder, namely transmitting party, to obtain an LSP (Line Spectrum Pair) parameter of the first encoder, and converting and unquantizing the LSP parameter to an LSP parameter of a second encoder, namely receiving party, to do bit-packing. A second transcoder performs at least one of bit-unpacking and unquantization on an encoded packet at the second encoder, namely transmitting party, to obtain an LSP parameter of the second encoder, and converts and unquantizes the LSP parameter to an LSP parameter of the first encoder, namely receiving party, to do bit-packing.
摘要:
A chemical mechanical polishing slurry, contains an abrasive dispersed in deionized water and an organic viscosity modifier added to adjust the viscosity of the slurry to within a range of 0.5 to 3.2 cps.