摘要:
The present invention relates to a water-in-oil-in-water multiple emulsion system and a method for preparation thereof, characterized by hydrodynamically stabilizing the multiple emulsion system by using hydrodynamic dual stabilization (HDS) technology. The HDS technology hydrophobizes water molecules in the internal aqueous phase by using a hydrogen bonding inhibitor and by improving the aggregating force between water molecules in the internal aqueous phase by using a water molecule aggregating agent.
摘要:
Provided is a small form factor optical/magnetic disk including an integrated metal hub and a disk plate. The integrated metal hub includes a circular upper metal hub and a circular lower metal hub integrally formed with and disposed under the upper metal hub. The circular lower metal hub has a smaller diameter smaller than the upper metal hub. A central hole is formed in central portions of the upper and lower metal hubs and passes through the upper and lower metal hubs. The disk plate has a through-hole that is formed in a central portion and is directly associated with the integrated metal hub, and a recess that is formed around the through-hole and allows the upper metal hub to be mounted therein. Since the central portion of the small form factor optical/magnetic disk is not thick, the small form factor optical/magnetic disk can contribute to an ultra thin small form factor information storage device. Also, since manufacturing processes are simple, price and quality competitiveness can be enhanced.
摘要:
Provided is a method of manufacturing a form factor disk such as an optical or magnetic disk for use in electronic appliances and information appliances. The method includes forming a hub for readily mounting the disk to a magnetic rotational disk connected to a spindle motor of the information appliances by depositing or plating a magnetic material, whereby it is possible to minimize a thickness of the disk, simplifying a manufacturing process, allowing an ultra-small and ultra-slim form factor disk to be manufactured, and therefore, facilitating ultra-minimization and ultra-slim of the information appliances.
摘要:
A motor has a field magnet assembly comprising a plurality of magnets arranged in the circumferential direction of the field magnet assembly such that like polarities face each other, and a plurality of magnet spacers disposed between the magnets, respectively. Consequently, leakage of magnetic flux of the field magnet assembly is minimized, and torque is improved as compared to a conventional motor having the same stacking and capacity. In a washing machine with the motor, the magnets and the magnet spacers are integrally attached to the outer tub of the washing machine. Consequently, the size of the washing machine is minimized. The sizes of the inner and outer tubs are increased when the washing machine according to the present invention has the same size as the conventional washing machine. Consequently, the capacity of the washing machine is increased.
摘要:
An active handoff system and method of a dual mode terminal capable of connecting to a wireless network, such as wireless local area network (LAN), and a mobile communication system are provided. The handoff method includes the steps of assigning, at a packet data service node of the mobile communication system, an IP address to the dual mode terminal connected to the service network, establishing, at the packet data service node, a tunneling path to the wireless LAN when the dual mode terminal moves from the mobile communication network to the wireless LAN, and disconnecting, at the packet data service node, the tunneling path to the wireless LAN, and establishing a tunneling path to another packet data service node whose Internet Protocol (IP) address has been established by the packet data service node, when the dual mode terminal moves from the wireless LAN to the mobile communication system. A dual mode terminal that moves from a 3G mobile communication system to a wireless network in an active state maintains an existing IP address assigned from an active 3G mobile communication system so that the dual mode terminal can maintain an upper layer session and transmit an IP packet to a terminal located in a 3G mobile communication system.
摘要:
A method for preparing a multilayer of nanocrystals. The method includes the steps of (i) coating nanocrystals surface-coordinated by a photosensitive compound, or a mixed solution of a photosensitive compound and nanocrystals surface-coordinated by a material miscible with the photosensitive compound, on a substrate, drying the coated substrate, and exposing the dried substrate to UV light to form a first monolayer of nanocrystals, and (ii) repeating the procedure of step (i) to form one or more monolayers of nanocrystals on the first monolayer of nanocrystals. Further, an organic-inorganic hybrid electroluminescence device using a multilayer of nanocrystals prepared by the method as a luminescent layer. The luminescent efficiency and luminescence intensity of the electroluminescence device can be enhanced, and the electrical properties of the electroluminescence device can be controlled by the use of the multilayer of nanocrystals as a luminescent layer.
摘要:
A flux concentration-type motor includes a ring-shaped stator, in which coils are wound on a plurality of teeth radially arranged; and a rotor, located at the center of the stator, having a plurality of magnets arranged in a circumferential direction such that poles, having the same polarity, of the magnets face each other, and rotated by the interaction with the stator, so as to prevent the leakage of magnetic flux of the magnets, thereby improving the torque compared to a conventional surface mounted permanent magnet-type motor having the same volume, reducing the production costs, and facilitating the miniaturization of products.
摘要:
A white light-emitting organic-inorganic hybrid electroluminescence device which has nanocrystals as illuminants. According to the device, a semiconductor nanocrystal layer composed of at least one kind of nanocrystals, a hole transport layer and/or an electron transport layer simultaneously emit light to produce white light, or a semiconductor nanocrystal layer composed of at least two kinds of nanocrystals emits light at different wavelengths to produce white light. The device can be used as a backlight unit for a liquid crystal display, or can be used to manufacture an illuminator.
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:
A solid-state transducer is disclosed. The transducer comprises a semi-conductor substrate forming a support structure and having an opening. A thin-film structure forming a diaphragm responsive to fluid-transmitted acoustic pressure is disposed over the opening. The transducer further includes a plurality of semi-conductor supports and tangential arms extending from the diaphragm edge for connecting the periphery of the diaphragm to the supports. The tangential arms permit the diaphragm to rotate relative to the supports to relieve film stress in the diaphragm. The transducer still further includes a plurality of stop bumps disposed between the substrate and the diaphragm. The stop bumps determine the separation of the diaphragm from the substrate when the transducer is biased.