Abstract:
Compositions and processes for the preparation of printed circuits from epoxy compositions are provided. The epoxy compositions exhibit low viscosity in the uncured state and low coefficient of thermal expansion in the cured state. The low dielectric constant compositions of the invention are well-suited for use in multi-layer printed circuit boards.
Abstract:
A LCD panel and a notebook computer incorporating the same is provided wherein the notebook computer includes a host, a rotating assembly, and a display panel body. The display panel body includes a first connecting unit, and the rotating assembly is detachably mounted on the host and having a second connecting unit exposed to an exterior of the rotating assembly. The second connecting unit is corresponding to the first connecting unit, and the rotating assembly is electrically connected with the host by an electric connection between the first connecting unit and the second connecting unit, so that the display panel body is rotatably connected with the rotating assembly.
Abstract:
A tool that a user may employ to assemble the components of a circuit in a floor plan design. The tool provides a user interface that displays the placement of blocks in a floor plan design, and the routing of wires among the blocks. When the designer moves the placement of a target block, the user interface automatically moves any adjacent blocks that would impede the movement of the target block and any block that would impede a block moved in response to the movement of the target block. The user interface may also respond to movement of a target block by showing how various features of the circuit will change as a result of the move. Thus, the user interface may show that moving one block closer to another block will create undesired wiring congestion in the circuit. The user interface also may show when moving a block will result in wiring connections that are too long to maintain a desired voltage level. The tool may also automatically move the placement of related blocks as a group, so that various attributes, such as a minimum distance between adjacent blocks, are maintained.
Abstract:
The present invention relates to an apparatus and a process for a half-cell structure to make a hexagonal-cell honeycomb core. The structure has a plurality of peaks and valleys and a diagonal surface between each consecutive peak and valley. The apparatus comprises a stack holder for stacking the structure so that as one sheet is placed on top of a stack comprising at least one sheet, the peaks of one sheet contact the peaks of an adjacent sheet. The apparatus also comprises an air blower disposed beneath the top of the stack for reducing the air pressure surrounding the stack to a pressure below the air pressure on the top of the stack, thereby pressing the layers together to form the core.
Abstract:
An underwater towing device, including an underwater towing assembly and a fixing mechanism of the underwater towing assembly. The underwater towing assembly includes a first floating body, a second floating body, and a third floating body. The fixing mechanism includes a fairlead carrier and two supports disposed on two sides of the fairlead carrier. The first floating body, the second floating body, and the third floating body are connected together via a fixing frame. The first floating body, the second floating body, and the third floating body have streamlined and bilaterally symmetrical shapes and all are hollow to accommodate experimental equipment. The first floating body is a cylinder having a drop-shaped horizontal cross-section. The upper part of the first floating body is provided with a buoyancy reserve tank having an elliptic horizontal cross-section.
Abstract:
A touch apparatus includes a driving unit, a first touch panel, a second touch panel and a connecting circuit board coupling between the first and second touch panels. The driving unit has a driving element which has at least one driving port for outputting a plurality of driving signals and at least one sensing port for receiving a plurality of sensing signals. The first touch panel is coupled with the driving element. The second touch panel is disposed adjacent to the first touch panel, and is coupled with the driving element via the first touch panel. The first touch panel and the second touch panel are coupled jointly with at least one of the driving port and the sensing port. A driving method of the touch apparatus is also disclosed.
Abstract:
A keyboard module includes a base, a plurality of retaining members and a plurality of keycaps. Each of the retaining members includes a bottom portion, a bending portion and an upper portion. The bottom portion is disposed on the base. The bending portion is connected to the bottom portion and extends along a direction away from the bottom portion. The upper portion is connected to the bending portion. The keycaps are respectively disposed on one of the upper portions corresponding thereto. After the keycaps are pressed by an external force, the upper portions are abutted by the keycaps, and the bending portion is deformed.
Abstract:
A ventilation apparatus with a two-section feedback compensation control and a method for operating the same are disclosed. The ventilation apparatus includes a power conversion unit, a driven circuit, a DC motor, a current-sensing unit, a voltage compensation unit, and a control unit. The power conversion unit receives and converts an AC power voltage into a DC power voltage. The driven circuit receives the DC power voltage and outputs a driven voltage. The DC motor is driven through the driven voltage. The current-sensing unit senses an output current of the DC motor. The control unit receives the output current to compare to a threshold current value, thus controlling the voltage compensation unit. Accordingly, the DC power voltage is adjusted to adjust the speed of the DC motor.