摘要:
A blasting system for the removal of coatings or paint from an underlying surface uses an optical device to position the blasting nozzle an appropriate stand-off distance from the surface. The blasting media can use a variety of blasting media including abrasives, water, and various specialty blasting media. The preferred optical system is mounted to or integral with the blasting nozzle, and uses a diode laser, a beam splitter and a reflecting mirror to generate a reference beam and a gauge beam. Alternatively, two diode lasers can be used to generate the reference beam and gauge beam respectively. The reference beam propagates in a fixed forward direction, but the direction of the gauge beam is adjustable. The user adjusts the orientation of the gauge beam so that the image of the beam on the surface aligns with the image of the reference beam on the surface when the blasting nozzle is positioned at the appropriate stand-off distance from the surface. Alternatively, the center of the blasting pattern o the surface can be used as a rough estimate for the reference beam, thereby avoiding the need to generate and align two non-parallel beams.
摘要:
Disclosed herein are various open/closed stent designs and methods for creating the same that can be individually adopted depending on particular treatment objectives. Specifically, the stents of the present invention are manufactured to include different open/closed configurations along their length by varying the number of crossovers, connectors or weld points between sections of the stent. Open portions contain less crossovers, connectors or weld points and are more flexible than closed portions which contain more crossovers, connectors or weld points.
摘要:
A stent and stent deployment system and related methods are disclosed wherein the stent has at least one end segment comprised of a self-expanding material attached to a body portion comprised of a biocompatible material. The stent deployment system comprises a balloon catheter having a stent disposed over the balloon. In one embodiment a stent's end segments extend beyond the proximal and distal ends of the balloon such that they are able to stent a portion of a vessel not expanded or damaged by balloon expansion. This stenting beyond area expanded or damaged by balloon expansion provides for a less abrupt transition between stented and unstented portions of a vessel.
摘要:
Various improvements in the fabrication of an antifuse having silicon-amorphous silicon-metal layer structure are presented. Included are improved deposition techniques for the amorphous silicon layer. The improvements include steps for the fabrication of such an antifuse without the use of platinum and the resulting antifuse and contact structures.
摘要:
The present invention relates to a method of using zatebradine by intravenous (IV) injection to retard or eliminate arrhythmias due to abnormal spontaneous activity in subendocardial Purkinje fibers. More specifically, the present invention relates to the use of zatebradine to reduce intracellular Na.sup.+ activity in Purkinje fibers and block I.sub.f current. Arrhythmias due to abnormal spontaneous activity in subendocardial Purkinje fibers occur 24 hours after occlusion of the left anterior descending (LAD) coronary artery in canine heart. These Purkinje fibers in the infarcted hearts are depolarized and have elevated intracellular Na.sup.+ activity. The major current underlying normal automaticity in these fibers is the I.sub.f current. Zatebradine reduces intracellular Na.sup.+ activity in Purkinje fibers by 4 mM. In vivo, 0.25-1.0 mg/kg intravenous injections of zatebradine slow ventricular rhythms by 24%. Although zatebradine also slows sinus nodal rate, it precipitates a more severe arrhythmia. However, during right atrial pacing, capture of ventricular rhythms occurs at lower rates (i.e. 28% reduction) in the presence of zatebradine. Thus, zatebradine eliminates the arrhythmia when the right atria is paced at the original sinus rate.
摘要:
Various improvements in the fabrication of an antifuse having silicon-amorphous silicon-metal layer structure are presented. Included are improved deposition techniques for the amorphous silicon layer. The improvements include steps for the fabrication of such an antifuse without the use of platinum and the resulting antifuse and contact structures.
摘要:
An antifuse structure particularly suitable for field programmable gate arrays is presented. In most present day processes the antifuse structure is formed with a refractory metal layer, amorphous silicon layer and refractory metal layer sandwiched between two metal interconnection lines. Unprogrammed resistances of very high values, programmed resistances of very low values, short programming times and desirable programming voltages are among the advantages realized.
摘要:
An antifuse particularly suitable for submicron geometries is presented. The antifuse is formed between a silicon layer, which could be a doped region of the semiconductor substrate, an epitaxial layer or a polysilicon layer, and an upper metal interconnection layer. In contact holes in a silicon dioxide layer insulating the silicon and metal interconnection layers from each other, the antifuses have a thick refractory metal layer having a top surface approximately at the same level as the top surface of the insulating layer. Depending upon the process used to deposit the refractory metal layer, a thin adhesion layer may be located immediately below the refractory metal layer. Between the underlying silicon layer and upper interconnection layer, a thin semiconductor material layer of amorphous silicon may be located either below the refractory metal layer or above it. At its bottom, the interconnection layer also has a barrier layer to prevent any intermixing between the amorphous silicon layer and the metal interconnection layer.
摘要:
The present invention is directed to a method and apparatus for connecting an external composite device to a smart device such as a smartphone using a USB connection. The apparatus allows for the creation of a communication interface between an external composite device such as a PTT device and a smart device with a single USB connector. The interface allows the external device to control transmission and reception of digital audio while simultaneously supporting serial data packets being transmitted to control PTT Press and Release (press and hold) from a USBC-Serial connection. The apparatus may be used with both Android and Iphone smart devices.
摘要:
Embodiments of the present invention include a computer-implemented method of performing a financial transaction on a network comprising storing a plurality of risk factors and associated severities in a web-enabled remote policy database, the severities defining actions taken when a specific risk factor is detected, storing a plurality of hold override policies that associate a financial transaction type with a hold type in the policy database. Various embodiments can receive transaction data including an image of a check, applying the plurality of risk factors to the transaction data, and applying the plurality of hold override policies to the deposit data. Finally, other embodiments include a web-enabled user interface through with users can review and approve/disapprove the handling of exceptions to the risk factors, severities, and hold override policies on a real-time or near-real time basis.