摘要:
Provided are a heterogeneous substrate, a nitride-based semiconductor device using the same, and a manufacturing method thereof to form a high-quality non-polar or semi-polar nitride layer on a non-polar or semi-polar plane of the heterogeneous substrate by adjusting a crystal growth mode. A base substrate having one of a non-polar plane and a semi-polar plane is prepared, and a nitride-based nucleation layer is formed on the plane of the base substrate. A first buffer layer is grown faster in the vertical direction than in the lateral direction on the nucleation layer. A lateral growth layer is grown faster in the lateral direction than in the vertical direction on the first buffer layer. A second buffer layer is formed on the lateral growth layer. A silicon nitride layer having a plurality of holes may be formed between the lateral growth layer on the first buffer layer and the second buffer layer.
摘要:
Disclosed is a method of preparing a hair and scalp conditioning composition. According to the method, a hair cosmetic base and aromatic oils are aged by separate reaction processes and are blended to improve the stability of the aromatic oils. Therefore, the activities of the aromatic oils, particularly for the prevention of hair loss and dandruff, are enhanced.
摘要:
Provided are a heterogeneous substrate, a nitride-based semiconductor device using the same, and a manufacturing method thereof to form a high-quality non-polar or semi-polar nitride layer on a non-polar or semi-polar plane of the heterogeneous substrate by adjusting a crystal growth mode. A base substrate having one of a non-polar plane and a semi-polar plane is prepared, and a nitride-based nucleation layer is formed on the plane of the base substrate. A first buffer layer is grown faster in the vertical direction than in the lateral direction on the nucleation layer. A lateral growth layer is grown faster in the lateral direction than in the vertical direction on the first buffer layer. A second buffer layer is formed on the lateral growth layer. A silicon nitride layer having a plurality of holes may be formed between the lateral growth layer on the first buffer layer and the second buffer layer.
摘要:
The present disclosure relates to a wind power generator using a piezoelectric element. A wind power generator using a piezoelectric element according to an embodiment of the present disclosure, includes: a plurality of panels which are sequentially stacked, a wing-shaped piezoelectric member disposed between the plurality of panels for generating electrical energy by external force and a vibrating ball container disposed on one surface of the wing-shaped piezoelectric member and including a plurality of vibrating balls, wherein a hole through which wind can pass is formed in at least one surface of the vibrating ball container.
摘要:
A power-off discharge circuit comprises a power voltage detection unit that detects whether a first power voltage for driving a source driver circuit is blocked and generates a discharge control signal, and a discharge unit that discharges a load circuit in a display panel based on the discharge control signal.
摘要:
The present invention relates to a walking assist device which has been devised to provide a completely different type of walking assist device in effort to resolve the shortcomings or inconveniences in use of the conventional devices. The walking assist device of the present invention is provided with a main walker unit having a body member with a hollow portion in which a main walker's foot can be penetrated and fixed; and a sub-walker unit that is interconnected with said main walker unit and fixes a sub-walker's foot.
摘要:
A power-off discharge circuit comprises a power voltage detection unit that detects whether a first power voltage for driving a source driver circuit is blocked and generates a discharge control signal, and a discharge unit that discharges a load circuit in a display panel based on the discharge control signal.
摘要:
Disclosed herein are a novel perfluoroalkyl vinyl ether compound, a process for preparing a copolymer by using the perfluoroalkyl vinyl ether compound, and an optical plastic material comprising a copolymer prepared by the process. More specifically, the perfluoroalkyl vinyl ether has a particular molecular structure; the process is performed by copolymerizing the perfluoroalkyl vinyl ether compound with a common fluorinated olefin in the presence of a perfluorinated radical initiator; and, the optical plastic material comprises a copolymer prepared by the process and optionally a dopant.
摘要:
A novel perfluoroalkyl vinyl ether compound, a process for preparing a copolymer by using the perfluoroalkyl vinyl ether compound, and an optical plastic material comprising a copolymer prepared by the process are provided. More specifically, the perfluoroalkyl vinyl ether has a particular molecular structure; the process is performed by copolymerizing the perfluoroalkyl vinyl ether compound with a common fluorinated olefin in the presence of a perfluorinated radical initiator; and the optical plastic material comprises a copolymer prepared by the process and optionally a dopant.
摘要:
The present invention relates to a monoclonal antibody specific for N-myc downstream regulated gene 2 (NDRG 2) protein, a cell line producing the monoclonal antibody, a method for measuring a quantity and quality of NDRG 2 protein, and a protein chip using the same. In the present invention, NDRG 2, a cancer-related factor is specifically expressed in dendritic cells differentiated from a monocyte of human peripheral blood. Accordingly, the monoclonal antibody specific for the NDRG 2 protein, the protein chip comprising the same and the method for measuring a quantity and quality of the NDRG 2 protein by using the same can be applied to elucidate characteristics of the dendritic cell and perform a research on the NDRG 2. Therefore, the present invention may help clinically to investigate and treat intractable diseases and cancers using the dendritic cell.