Novel designs and materials for filtering face-piece respirators (FFRs) have been disseminated in response to shortages during the COVID-19 pandemic. Since filtration efficiency depends on particle diameter air face velocity, relevance of material or prototype fit data test conditions. We investigate whether characterizing a filter holder at range velocities enabled precise prediction performan...

Pencemaran udara diartikan dengan turunnya kualitas sehingga mengalami penurunan mutu dalam penggunaannya dan akhirnya tidak dapat dipergunakan lagi sebagai mana mestinya sesuai fungsinya. Untuk mengetahui tingkat pencemaran diperlukan suatu alat pemantau udara. Perkembangan pesat cara kerja air purifier ruang lingkup yang meluas seharusnya bermanfaat bagi lingkungan namun kenyataannya merusak ...

The recent geo-political climate has increased the necessity for autonomous, chip-sized, lightweight, air sampling systems which can quickly detect and characterize chemical, biological, radiological, nuclear, and high explosive (CBRNE) hazardous materials and relay the results. To address these issues, we have developed a self-powered 3-D chip architecture that processes air to produce concent...

We introduce a new method for computing join cost in unitselection speech synthesis which uses a linear dynamical model (also known as a Kalman filter) to model line spectral frequency trajectories. The model uses an underlying subspace in which it makes smooth, continuous trajectories. This subspace can be seen as an analogy for underlying articulator movement. Once trained, the model can be u...

In this paper different distributed Arithmetic (DA) architectures are proposed for Finite Impulse Response (FIR) filter. FIR filter is the main part of the Digital Signal Processing. In Digital Signal Processing we can use Multiply Accumulator Circuit (MAC) and DA for filter design.MAC consumes more power and area because of multiplier and adder circuit. The design distributed arithmetic is run...

Pattern identification for spiking activity, which is central to neurophysiological analysis, is complicated by variability in spiking at multiple time scales. Incorporating likelihood tests on the variability at two time scales, we developed an approach to identifying segments from continuous neurophysiological recordings that match preselected spike " templates ". At smaller time scales, each...

background: firoozgar comprehensive stroke center started up as the first organized care unit in the country in 2014; this study was performed to investigate quality indicators such as reduction in mortality, morbidity and hospital stay.   methods: two groups of ischemic stroke patients were compared. the first group had been admitted in general neurology ward (non-stroke unit patients) and the...

∗To whom correspondence should be addressed †University of Erlangen ‡Caltech uum light source is spectrally filtered by a programmed acousto-optic tunable filter (operated at λ = 1200− 1850nm) (NKT Koheras, SuperK Extreme) and is subsequently directed through a polarization filter (1) and a non-polarizing beam splitter (NPBS), that directs 50% of the power to a reference diode (InGaAs). The mai...