摘要:
A heat sink retention apparatus includes a frame for supporting a heat sink. A plurality of flexible members extend from opposite ends of the frame. Each flexible member includes a retention tab and one of the retention tabs includes a retraction tab. A heat sink is snapped-into the frame by engaging either of the retention tabs and flexing the other retention tab. The retraction tab can be flexed to disengage one of the retention tabs for extracting the heat sink from the frame.
摘要:
This invention relates to an aluminum conductor composite core reinforced cable (ACCC) and method of manufacture. An ACCC cable (300) has a composite core and at least one layer of aluminum conductor (306). The composite core (303) comprises a plurality of fibers from at least one fiber type in one or more matrix materials. According to the invention, unique processing techniques such a B-Staging and/or film-coating techniques can be used to increase production rates from a few feet per minute to sixty or more feet per minute.
摘要:
Apparatus and methods for automatically staining or treating multiple tissue samples mounted on slides are provided, in which the slides and reagent bottles are held in fixed position, and the reagent, wash and coverslipping solutions brought to the slides. Alternatively, the slides are held in fixed position, while the reagent, wash and coverslipping solutions brought to the slides.
摘要:
This invention relates to an aluminum conductor composite core reinforced cable (ACCC) and method of manufacture. An ACCC 303 cable (300) has a composite core surrounded by an outer film (305) and at least one layer of aluminum conductor (306). The composite core (303) comprises a plurality of fibers from at least one fiber type in one or more matrix materials. According to the invention, unique processing techniques such a B-Staging and/or film-coating techniques can be used to increase production rates from a few feet per minute to sixty or more feet per minute.
摘要:
A processor extraction device interacts with a processor to extract the processor from coupling between connectors of the processor and a socket, such as land grid array connectors that are susceptible to damage from dragging or rotational movement during extraction. For instance, adhesive couples the processor to a load plate that closes over the socket to compress the processor in the socket so that the adhesive extracts the processor as the load plate moves from the closed position to an open position distal the socket. As another example, the load plate closed position compresses the processor onto springs that bias the processor out of the socket upon movement of the load plate to the opened position.
摘要:
A surface mount connector that can be used for both single and double-sided PWB's. A telephone may have a printed wiring board with connector access from the bottom of the telephone and keypad activation from the top of the telephone. If a double-sided PWB is used, the connector is mounted to the bottom side of the PWB, while the keypad is mounted to the top of the PWB. The connector faces away from the PWB to provide access from below the telephone. If a single-sided PWB is used, the connector is mounted to the top side of the PWB, so that the keypad can also be mounted to the top side. The connector is placed, with connector access down, into an opening through the PWB. The connector extends down through the opening in the PWB with the leads of the connector remaining on the top side of the PWB. The leads of the connector are secured to pads on the top side of the PWB.
摘要:
Pseudorandom values are produced using a memory and an arithmetic logic unit. The previous value is shifted four places to the left to form a shifted value. Next, the previous value is subtracted from this shifted value to form a subtracted value. The least significant bit of this subtracted value is complemented to form the new value.
摘要:
A vehicle speaker mounting system. The vehicle speaker mounting system comprises a parcel shelf having at least one stiffener extending substantially longitudinally along the length of the parcel shelf. The system further includes at least one aperture extending through a generally planar portion of the parcel shelf. The aperture is configured to receive a speaker.
摘要:
The present invention introduces a radically different way of accelerating biomolecule conjugates into tissue, and hence towards their targets for purposes of tissue staining. The invention provides for an order of magnitude improvement over the prior art diffusion process used to stain tissue. The invention comprises a method of tissue staining by applying an electric field to a tissue sample in the presence of an electrolyte and biomolecular conjugates of interest suspended in the electrolyte. Typical staining times are reduced to seconds as opposed to 30-120 minutes common in the prior art. The invention is also directed to devices for performing the method.
摘要:
This invention relates to collet-type fittings (201) for use in collet-type splices and collet-type dead ends and methods for splicing together two aluminum conductor composite core reinforced cables (ACCC) or terminating one ACCC cable. The collet-type fittings (201) comprise a collet (202) coincident with a collet housing (204) to hold the composite cores. The composite cores can be stripped of the aluminum conductor to provide a bond between the collet (202) and the composite core. After inserting the composite core into the collet (202), a compression element (206) compresses the collet (202). The collet (202) holds the composite core with frictional forces and the collet (202) further compresses and strengthens the hold on the composite core if the composite core pulls the collet (202) further into the collet housing (204).