Black carbon (BC) is a pyrolyzed product derived from incomplete combustion. A major fraction of BC produced by landscape fires initially deposited onto onsite soils. Atmospheric deposition soot known to be an important source soil BC, especially in watersheds that are not affected fires. The transport the dissolved oxidized soil, defined as black (DBC), streams considered one loss pathways but...

The Double-Base Number System (DBNS) uses two bases, 2 and 3, in order to represent any integer n. A Double-Base Chain (DBC) is a special case of a DBNS expansion. DBCs have been introduced to speed up the scalar multiplication [n]P on certain families of elliptic curves used in cryptography. In this context, our contributions are twofold. First, given integers n, a, and b, we outline a recursi...

The applications using face biometric has proved its reliability in last decade. In this paper, we propose DBC based Face Recognition using DWT (DBCFR) model. The Poly-U Near Infra Red (NIR) database images are scanned and cropped to get only the face part in pre-processing. The face part is resized to 100*100 and DWT is applied to derive LL, LH, HL and HH subbands. The LL subband of size 50*50...

The effects of ash and sulfur content on the morphology particulate matter (PM) in diesel particle filter (DPF) were investigated with five different components lubricants. aggregate primary particles analyzed using transmission electron microscopy (TEM). fractal dimensions carbon calculated by box-counting method (BCM), differential (DBC), relative (RDBC) MAD-based box counting (MAD-DBC), resu...

A 900-MHz phase-locked loop frequency synthesizer implemented in a 0.6m CMOS technology is developed for the Wireless Integrated Network Sensors applications. It incorporates an automatic switched-capacitor (SC) discrete-tuning loop to extend the overall frequency tuning range to 20%, while the VCO gain ( VCO) resulting from the CMOS varactor continuous-tuning is kept low at only 20 MHz/V in or...

This paper presents a novel design of a ring oscillator (RO) producing eight phases output with accurate signal phase adjustment. By using the pulse injection technique, the RO phase noise has been strongly suppressed. In addition, a novel phase control technique is proposed for the implementation of the phase modulation. The proposed RO achieves a phase noise of -131.5 dBc/Hz @1MHz offset and ...