Many systems in medicine, biology, high-energy physics, and astrophysics require large area radiation sensors. In most of these applications, minimizing the amount of dead area or dead material is crucial. We have developed a new type of silicon radiation sensor in which the device is active to within a few microns of the mechanical edge. Their perimeter is made by a plasma etcher rather than a...

Circular sawing with diamond-impregnated tools has been extensively used in stone processing plants and prediction of rock sawability is important in the cost estimation and the planning of the plants. Rock sawability depends on machine characteristics, type and diameter of diamond saw, depth of cut, rate of sawing and tool wear, and rock properties. Some researchers have investigated the relat...

Conventional osteotomy used for the correction of deformity is performed out of the plane of deformity creating a wedge either opening or closing when the deformity is corrected. Deformity that is a combination of rotation and angulation exists in a single plane that is oblique to the coronal, sagittal and axial planes depending on the magnitude of deformity measured in each plane. Accurate pla...

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BACKGROUND AND IMPORTANCE Primary tumors of the spine are considered for en bloc resection to improve local control and even obtain cure. Anatomic restrictions often prohibit extensive resections with negative margins that are safe and feasible. We report the first case involving a patient with a large chordoma of the thoracic spine who underwent a successful 5-level spondylectomy with bilatera...

We perform a detailed analytic and numerical study of the evolution of a ferrofluid drop confined to a rotating Hele-Shaw cell in the presence of an azimuthal magnetic field. Our results demonstrate that the centrifugally driven interfacial instabilities can be simply controlled with the use of a current-carrying wire. We compare an analytic linear analysis to our computational results and show...

We present results of near-field radio-frequency (RF) imaging at micrometer resolution using an ensemble nitrogen-vacancy (NV) centers in diamond. The spatial RF is set by the optical microscope, which markedly higher than existing methods. High sensitivity field detection demonstrated through spin locking. SCROFULOUS composite pulse sequence used for manipulation spins NV reduced to possible m...

Nickel alloying of carbon steel is used to enhance strength and toughness. the weld metal via solid wire presents several difficulties as highlighted previously, such work hardening in manufacturing feeding through SAW mechanism, expensive time consuming multiple formulations. The application nickel aluminium powders unconstrained format, meaning not fluxed cored or wire, simplify alloying. Al ...