Abstract:
An apparatus and method for supporting a plurality of components, at least one of which is a heat-generating electrical device such as a power semiconductor device, are disclosed. In some embodiments, the apparatus includes a first structure having a first surface on one side of the structure configured for interfacing a first of the plurality of components and a second surface on another side of the structure, and also includes a second structure capable of receiving the first structure, where one of the second surface and an additional surface of the second structure includes a tip that is in contact with the other of those surfaces. The apparatus further includes at least one component configured to assist in retaining the first and second structures relative to one another, where notwithstanding the at least one component the first structure is capable of pivoting relative to the second structure about the tip.
Abstract:
Laser machining a tubular construct comprising a polymer layer to form a stent pattern in the construct with localized cooling of the machined surface to reduce or prevent heat transfer to uncut polymer of the polymer layer is disclosed.
Abstract:
A network communication device comprises a top component and a bottom cover forming a receiving space therebetween when assembled. The top component further comprises a top cover and a body. The body is configured attaches the top cover and the bottom cover. The assembly of the top cover and the bottom cover utilizes at least one locking tab assembly. Each locking tab assembly comprises a locking tab and a reciprocal locking structure engaged with the locking tab. One of the locking tabs and the reciprocal locking structure of the one locking tab assembly are utilized to assemble the top cover and the body is disposed on a first planar surface of the top cover, and another one of the locking tab and the reciprocal locking structure of the locking tab assembly is disposed on the body.
Abstract:
A machining simulation apparatus is arranged in a machine tool having a tool holding mechanism, a workpiece holding mechanism, a drive mechanism and a numerical controller, and provided with: an actual CCD camera for imaging a tool held by the tool holding mechanism and the workpiece holding mechanism not holding a workpiece to generate actual image data; a model data update processing section for generating model data relating to when moving the holding mechanisms based on the operation command received from the numerical controller and the model data of the holding mechanisms, tool and workpiece; a virtual image generation processing section for generating virtual image data of the tool and workpiece based on the generated model data; and a rendering processing section for generating composite image data by superimposing the virtual image on the actual image, and displaying the composite image data on a screen display device.
Abstract:
A method for detecting cracks in a carbon fiber bicycle frame using an embedded optical fiber is provided. Optical time-domain reflectometry is employed to detect cracks in a bicycle frame made of carbon fibers intertwining with a single-mode optical fiber. The single-mode optical fiber is thus embedded into the bicycle frame and consolidated with the carbon fibers during a manufacturing process of the bicycle frame. Integration of the single-mode optical fiber, which has a small diameter, low cost and lightweight, into the bicycle frame adds little to a production cost and weight of the bicycle frame. The optical fiber consolidated within the bicycle frame can be connected with an optical time-domain reflectometer for efficiently detecting twists or cracks of the carbon fibers in the bicycle frame, both as a quality check in the manufacturing process and as a safety check after the bicycle frame has been used for some time.
Abstract:
A method and an apparatus for decrypting encrypted data transmitted wirelessly by updating a key-table comprises a receiver in wireless communication with a sender. The method includes receiving an encrypted data from the sender; searching a key-table of the receiver for a decryption key corresponding to the encrypted data; if the decryption key is not stored in the key-table, driving the receiver for searching a master list of the receiver for the decryption key and transferring the decryption key from the master list to the key-table to update the key-table; and decrypting the encrypted data through utilizing the decryption key stored in the key-table. The method also includes the option of disabling the sending of an acknowledgement message from the receiver to the sender after having received data from the sender.
Abstract:
There is disclosed a data processor comprising 1) a register stack comprising a plurality of architectural registers that stores operands required by instructions executed by the data processor; 2) an instruction execution pipeline comprising N processing stages, where each processing stage performs one of a plurality of execution steps associated with a pending instruction being executed by the instruction execution pipeline; and 3) at least one mapping register associated with at least one of the N processing stages, wherein the at least one mapping register stores mapping data that may be used to determine a physical register associated with an architectural stack register accessed by the pending instruction.
Abstract:
Provided herein is a method of using a bioabsorbable medical device that includes RGD attached to the device via a spacer compound. The method comprises implanting in a human being a bioaborbable device, e.g., a bioabsorbable stent, including a chemo-attractant for endothelial progenitor cells (EPCs).
Abstract:
The present invention provides electrically conductive paper composites prepared from cellulose fibers modified to bind a conducting polymer to a surface of the cellulose fibers and mixing these with unmodified cellulose fibers and forming paper products from the composite. Conducting paper composites so formed were investigated for their conductivity and strength properties as a function of monomer dosage or percentage of modified fibers in the mixture and for the composites it was found that less monomer (i.e. conductive polymer) was needed to achieve the same conductivity obtained from conducting paper made from only the modified cellulose. A higher tensile strength was obtained with the composite conducting paper than was attained with conducting paper made from only the modified cellulose. The electrically conductive paper composites may also be prepared from cellulose fibers mixed with particulate fillers modified to bind a conducting polymer to a surface of the particulate fillers.