This paper describes an experimental investigation conducted on WRS-BTU seismic isolators that are constituted by a wire rope spring coupled with a ball transfer unit. The device can be considered rigid along the vertical direction while the horizontal stiffness can be independently chosen to shift the natural period away from the period range having the most of earthquake energy. Two kinds of ...

The focus of this communication is to share an alternative form of positional maintenance for use after correction of flexible hammer digits via flexor tenotomy. The toe is maintained in a corrected position by means of a wide, horizontal mattress stitch with the suture passing through the extensor apparatus both proximal and distal to the interphalangeal joints. This suture prevents recurrence...

A five turn coil of magnet wire sandwiched between two soft contact lenses served as a magnetic search coil to measure horizontal and vertical eye movements in humans. The lens was adhered to the eye for 35 min by periodically misting the eye with distilled water; during this time the records of eye position showed that the lens remained firmly attached to the eye. Using this sensor, no topical...

The interwire spacing in a VLSI chip becomes closer as the VLSI fabrication technology rapidly evolves. Accordingly, it becomes important to consider crosstalk caused by the coupling capacitance between adjacent wires in the layout design for the fast and safe VLSI circuits. The upper bounds of the allowable crosstalk for nets, called crosstalk constraints, are usually given in the design speci...

The NRAO CDL is preparing to construct test receivers for use in production of the Band-6 mixer-preamps for ALMA. The discussion below applies primarily to the mixer-preamp to test receiver interface, but should also be useful as a guide to the mixer-preamp interface with the cartridges — all the listed connections will be available on the mixer-preamp and can be used as desired by the cartridg...

Abstract. Among Directed Energy Deposition (DED) processes for metallic materials, Wire Laser Additive Manufacturing (WLAM), distinguishes itself by the use of a laser beam to melt wire and produce beads. Successive depositions overlapping beads generate volumes obtain parts. Thus, controlling bead geometries is essential additive manufacturing process. Several research works have studied these...

The paper describes a study that forms part of a measurement assurance program (MAP) in place at Ford Motor Company. The purpose of a MAP is to assure on an ongoing basis that the total uncertainty associated with a measurement process meets the requirements of the customer. The gage repeatability and reproducibility study and statistical control chart are two traditional parts of the Ford MAP....