Fourier phasing is the problem of retrieving Fourier phase information from Fourier intensity data. The standard Fourier phase retrieval (without a mask) is known to have many solutions which cause the standard phasing algorithms to stagnate and produce wrong or inaccurate solutions. In this talk Fourier phase retrieval is carried out with the introduction of a randomly fabricated mask in measu...

This work investigates the increase in surface dose caused by thermoplastic masks used for patient positioning and immobilization. A thermoplastic mask is custom fit by stretching a heated mask over the patient at the time of treatment simulation. This mask is then used at treatment to increase the reproducibility of the patient position. The skin sparing effect of mega-voltage X-ray beams can ...

Automatic speech recognition (ASR) has reached very high levels of performance in controlled situations. However, the performance degrades significantly when environmental noise occurs during the recognition process. Nowadays, the major challenge is to reach a good robustness to adverse conditions, so that automatic speech recognizers can be used in real situations. Missing data theory is a ver...

In Vanderbei et al. (2003), we introduced a class of shaped pupil masks, called spiderweb masks, that produce point spread functions having annular dark zones. With such masks, a single image can be used to probe a star for extrasolar planets. In this paper, we introduce a new class of shaped pupil masks that also provide annular dark zones. We call these masks starshaped masks. Given any circu...

BACKGROUND Birth asphyxia, when a baby does not breathe at birth, is estimated to account for 23% of the approximately four million neonatal deaths that occur annually. Correct use of neonatal resuscitators is critical to lower neonatal mortality rates due to birth asphyxia. METHODS In order to understand the context of use of resuscitators including use scenarios, training, device readiness ...

Background: Birth asphyxia, when a baby does not breathe at birth, is estimated to account for 23% of the approximately four million neonatal deaths that occur annually. Correct use of neonatal resuscitators is critical to lower neonatal mortality rates due to birth asphyxia. Methods: In order to understand the context of use of resuscitators including use scenarios, training, device readiness ...

Long-range spatial interactions in human visual cortex were explored using a lateral masking paradigm. Visual evoked potentials (VEPs) elicited by a Gabor signal presented in isolation or in the presence of two flanking high-contrast Gabor signals (masks) were measured. Response amplitude and phase were recorded for a vertically oriented test, for horizontal and vertical masks and for combinati...

The extension of optical lithography at 193nm wavelength to the 32nm node and beyond drives advanced resolution enhancement techniques that impose even tighter tolerance requirements on wafer lithography and etch as well as on mask manufacturing. The presence of residual errors in photomasks and the limitations of capturing those in process models for the wafer lithography have triggered develo...

Accumulation of intracellular misfolded or damaged proteins is associated with both normal aging and late-onset degenerative diseases. Two cellular clearance mechanisms, the ubiquitin-proteasome system (UPS) and the macroautophagy/autophagy-lysosomal pathway, work in concert to degrade harmful protein aggregates and maintain protein homeostasis. Here we show that Mask, an Ankyrin-repeat and KH-...

We provide new yield-aware mask strategies to mitigate emerging variability and defectivity challenges. To address variability, we analyze critical dimension variability with respect to reticle size and its impact on parametric yield. With a cost model that incorporates mask, wafer, and processing cost, considering throughput, yield, and manufacturing volume, we assess various reticle strategie...