摘要:
Provided is an optical fiber illuminator used for recording and reading high density optical information according to a near field recording (NFR) scheme, a method of fabricating the optical fiber illuminator, and an optical recording head and recording apparatus having the optical fiber illuminator. The optical fiber illuminator includes: an optical fiber having a core upon which light is incident and a clad that surrounds the core, one end of the optical fiber having a mirror formed in an inclined manner; and a lens formed on an outer surface of the optical fiber for focusing light reflected by the mirror. The optical fiber illuminator has an improved optical arrangement for optical illumination and detection, it is easy to manufacture, its optical input is easy to control, and it can be readily provided in an array form. When an array type optical recording and reading apparatus having an optical recording head and multiple aperture probes adopts the optical fiber illuminator, the resulting simple arrangement and compact size enables size reduction of the overall apparatus, a signal to noise ratio is high, and high density optical information can be recorded and reproduced at an extremely high rate.
摘要:
Disclosed is a method for managing image files in a mobile communication terminal capable of classifying a compressed image file in each field unit and then restructuring the compressed image file only with a field including essential information among the classified fields, thereby storing and managing the files. The method comprises processes of retrieves a compressed image file, which is produced in itself in the mobile communication terminal or received via the communication process, in a byte unit, classifying it in each field unit, and extracting only field information which is essential information to restructure the compressed image file. Thereby, the mobile communication terminal stores and manages the compressed image file restructured only with the essential information in the internal memory, and increasing an overall efficiency of the terminal memory and decreasing a possibility of an error occurrence during the decoding operation and the image acquisition operation for the compressed image file.
摘要:
A method for preparing cadmium sulfide nanocrystals emitting light at multiple wavelengths. The method comprises the steps of (a) mixing a cadmium precursor and a dispersant in a solvent that weakly coordinates to the cadmium precursor, and heating the mixture to obtain a cadmium precursor solution, (b) dissolving a sulfur precursor in a solvent that weakly coordinates to the sulfur precursor to obtain a sulfur precursor solution, and (c) feeding the sulfur precursor solution to the heated cadmium precursor solution maintained at a high temperature to prepare cadmium sulfide crystals, and growing the cadmium sulfide crystals. Further, cadmium sulfide nanocrystals prepared by the method. The cadmium sulfide nanocrystals have uniform size and shape and can emit light close to white light simultaneously at different wavelengths upon excitation. Due to these characteristics, the cadmium sulfide nanocrystals can be applied to white light-emitting diode devices.
摘要:
A manufacturing method of a wire grid polarizer includes the steps of: preparing a mold; sequentially forming a metal foil and a polymer on a substrate; molding a polymer by using the mold; etching the metal foil by using the molded polymer, and forming a wire grid pattern; and removing the polymer.
摘要:
An authentication method for supporting a Mobile IP system reduces an operational load on a mobile node while providing non-repudiation function, by adding an electronic signature using an individual certificate of a mobile node to a registration request message. The authentication method for a Mobile IP system is used in a network system having a plurality of agents and a mobile node. The mobile node receives an advertisement message from one agent of the plurality of the agents, and transmits a registration request containing an electronic signature to the agent corresponding to the advertisement message.
摘要:
This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: wherein E is nitrogen or C—R′; J is sulfur or oxygen; R′, R1, R2, R3, R4 is independently H, halogen, alkyl, nitro, nitrile, alkoxy, halogenated alkyl, halogenated alkoxy, phenyl or halogenated phenyl, R5 is H or protected or unprotected side chain of natural or unnatural α-amino acid; and B is a natural or unnatural nucleobase, wherein when said nucleobase has an exocyclic amino function, said function is protected by protecting group which is labile to acids but stable to weak to medium bases in the presence of thiol.
摘要:
This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: wherein E is nitrogen or C—R′; J is sulfur or oxygen; R′, R1, R2, R3, R4 is independently H, halogen, alkyl, nitro, nitrite, alkoxy, halogenated alkyl, halogenated alkoxy, phenyl or halogenated phenyl, R5 is H or protected or unprotected side chain of natural or unnatural α-amino acid; and B is a natural or unnatural nucleobase, wherein when said nucleobase has an exocyclic amino function, said function is protected by protecting group which is labile to acids but stable to weak to medium bases in the presence of thiol.
摘要:
A motor for a washing machine includes a stator core having one or more bolt thru holes. A stator assembly having the stator core is directly coupled to a bearing housing using the bolt thru holes.
摘要:
Disclosed is a multi-channel optical attenuator having a Planar Lightwave Circuit (PLC) structure for controlling a light path by waveguides and manufacturing method thereof. In this optical attenuator, a bonding medium layer of polymer is used to bond an actuator structure and a support structure. A silicon layer is provided with waveguides for transmitting optical signals from an optical signal transmission line and an activator formed at a predetermined portion thereof. The waveguides are inserted into cavities of the bonding medium layer. A support layer is attached to the bonding medium layer at an opposite face to a face where the bonding medium layer is bonded with a silicon substrate.
摘要:
A flash memory broadcasting displayer panel is comprised of 1) a flash memory card, 2) an interface card, and 3) a Liquid Crystal Displayer. Time sequence type files, which are stored in the flash memory card, are processed by the interface card and transferred to the Liquid Crystal Displayer. The interface card includes a microprocessor operating with an internal BUS to control, process and route signals between the flash memory and the Liquid Crystal Displayer.