摘要:
A disk for a hard disk drive. The disk includes a S1 layer of magnetic material located over a substrate, and a layer of ruthenium located over the S1 layer. The disk further includes a top layer of magnetic material and a layer of chromium located adjacent to the top magnetic layer. The chromium diffuses into the top layer of magnetic material to magnetically decouple the grains of the magnetic material. Decoupling the grains of the magnetic material reduces the magnetic noise of the disk and improves the signal to noise ratio of the hard disk drive.
摘要:
A method for fabricating a patterned disk of a hard disk drive. The method includes forming a layer of magnetic material over a substrate and then forming a sacrificial flash layer over the layer of magnetic material. A co-polymer material is formed over the sacrificial flash layer and then a plurality of magnetic dots separated by a non-magnetic material are formed in the magnetic layer. The flash layer is preferably a FePt material with a non-magnetic Ag or Cu based alloy. Such material not only provides good adhesion between the co-polymer and magnetic layers but also diffuses into the grains of the magnetic material. The diffusion of the non-magnetic flash layer between the grains of the magnetic material reduces magnetic cross-talk and improves the signal to noise ratio of the disk.
摘要:
A golf tee for separating the upper body and the lower pin body at the impact moment. The tee has increased re usability. The tee has two springs inside. One spring is inside of an upper head body made of a transparent and flexible outer layer having a golf ball placement at the top. The other spring is embedded in a plastic pin. Those springs are connected by a flexible polymer string connector, which is inserted inside of the springs. Both ends of the flexible plastic string connector has a diameter larger than that of the springs to hold the upper end of the spring in the upper body and the lower end of the other spring in the pin. The springs, inside of the upper head body and inside of the pin, retract at the impact moment.
摘要:
An access pointer for interconnecting a power line communication (PLC) network of a home network and a wireless network and a method therefor are provided. When data is received from the PLC network through media access control of a data link layer, data on upper layers above a network layer in the received data is converted into a format suitable to a wireless network layer. The converted data is transmitted to the wireless network through the media access control of the data link layer. Accordingly, the PLC network and the wireless network are easily interconnected.
摘要:
Disclosed is a method and system for managing web sites registered in a search engine that provides information about web sites on the Internet, wherein information about the web sites registered in the search engine is analyzed to prevent the provision of search results different from essential contents contained in the web sites. In the method, information of the registered web site is received and recorded in a database after being classified by predetermined fields. A search robot is controlled to read a source file constituting a web page of the registered web site, and the read source file is then analyzed. It is determined based on a predetermined basis whether or not the registered web site is a deceptive site. Predetermined processing is performed on the registered web site if the web site is determined to be a deceptive site. The source file is preferably an HTML document.
摘要:
A secondary battery including a jelly roll configuration type electrode assembly formed by winding a stack of two electrodes having different polarities and at least one separator for preventing a short circuit between the two electrodes, a case for containing the electrode assembly, and electrode tabs for connecting the two electrodes of the electrode assembly to an outside of the case, wherein a level for extracting the electrode tabs from the electrode assembly is substantially equal to a level for extracting the electrode tabs from the case. The electrode assembly may be formed to be a jelly roll having an elliptical shape or a track shape. In one exemplary embodiment, the electrode tabs are used in a pouch having a hollow for containing the electrode assembly in only one side. Also, the electrode tabs are extend linearly from the pouch.
摘要:
Pouch-type lithium polymer batteries and a methods for manufacturing them are disclosed. One such battery comprises a wound electrode assembly comprising positive and negative electrode plates and a separator. Positive and negative electrode tabs are attached to the positive and negative electrode plates and extend from the electrode assembly. The electrode assembly is encased within a pouch which comprises a cavity and a cover. The positive and negative electrode tabs extend outside the pouch. A protective circuit module is electrically connected to the positive and negative electrode tabs and is molded with, or encased in a resin to form a protective circuit construction which is positioned against a front surface of the pouch. The pouch-type lithium polymer batteries of this invention can be used in external apparatuses such as laptop computers or PDAs. The protective circuit constructions of this invention are not short-circuited to external circuits of the external apparatuses.
摘要:
An interconnect that may reduce a head slider's exposure to electrostatic discharge events and may dissipate charging of the head is provided. Conductive and nonconductive adhesives are used to adhere a head slider to the interconnect. An electromagnetic interference generating circuit generates current that flows through the conductive adhesive bonding the head slider to the flexure arm. The electromagnetic interference current breaks down the resistance of the conductive adhesive to dissipate an electrostatic voltage charge on the head slider. This may prolong the life of the head slider and a read/write head coupled to the head slider.
摘要:
An axle assembly of a driving wheel of the present invention removes a hub and forms a brake disc integral type hub in order to integrate the hub and a brake disc. A protrusion portion is formed on an end of the brake disc integral type hub, and one portion of the protrusion portion is provided to be opposite to an inner race of a bearing, and a lower portion of the protrusion portion is provided to be opposite to a bearing inner race shaft. Since constructed such above, its structure is simple and its weight reduces. Also, since an assembly process is simple, and an assembly operation time becomes shortened, cost may be saved.
摘要:
A nanocomposite composition having a barrier property is provided. The compositon is prepared by dry-blending a styrene-based resin, a resin having a barrier property/intercalated clay nanocomposite, and a compatibilizer. The compositon has superior mechanical strength and moldability, and superior oxygen, organic solvent, and moisture barrier properties, and thus can be used to manufacture various articles having a barrier property.