This paper presents a Wireless-USB/WiMedia-compliant fast-hopping frequency synthesizer architecture with quadrature outputs based on sub-harmonic injection-locking. The synthesizer features a cross-coupled quadrature digitally-controlled oscillator, that is injection-locked to a sub-harmonic frequency. An intuitive closed-form expression for the dynamics of the quadrature injection-locked osci...

Neutral atomic carbon in dense molecular clouds, " Ap. Analysis of Zeeman effect data in radio astronomy, " Ap. Two-junction tuning circuits for submillimeter SIS mixers, " IEEE Trans.

The hydrodynamic characteristics of mixing fluids are always the points to consider in improvement their quality especially using motionless mixers normally stated as “Static Mixers”. Motionless technique was adopted for Air-Water system with advantage negligible power consumption over dynamic mixers. Different were experimented “Baffle Type” static element and compared those already used recen...

An experimental study was conducted to further our understanding about the fundamental physics of electrokinetic instability (EKI) and to explore the effectiveness to enhance fluid mixing inside a Y-shaped microchannel by manipulating convective EKI waves. The dependence of the critical voltage of applied static electric field to trig EKI to generate convective EKI waves on the conductivity rat...

Digital microfluidic systems (DMFS) are a class of lab-on-a-chip systems that manipulate individual droplets of chemicals on an array of electrodes. The biochemical analyses are performed by repeatedly moving, mixing, and splitting droplets on the electrodes. In this paper, we characterize the tree structure of biochemical analyses and identify their minimum resource requirements, towards the d...

ThefPDB\(" Planar Doped B_arrier| diode is a device consisting of a p doping spike \v .' between two" intrinsic layers and n ohmic contacts. This device has the advantages of controllable barrier height, diode capacitance and forward to reverse current ratio. A symmetrically designed PDB has an anti-symmetric current vs. voltage characteristic and is ideal for use as millimeter wave subharmonic...