| A very low power 8-bit CPU core has been designed based on an original pass-transistor logic family, SPL and SPHL. The instruction set and external timings are compatible with the Zilog Z80. Average supply current is 740 A at 3V with a 10MHzclock, equivalent to 26% of that of the commercial CMOS Z80 CPU cores using the same design rules (0.8 m, w-metal).

O método semi-empírico HAM/3, desenvolvido por Lindholm e colaboradores há mais de duas décadas, tem uma deficiência. As energias de excitação calculadas por HAM/3 para estados degenerados são desdobradas. Recentemente foi proposto um método para corrigir esta deficiência. Apresentamos aqui resultados de aplicações deste novo método para algumas moléculas com simetria T d , C 3v e D 3h . O esqu...

We consider square and equilateral triangular open acoustic resonators with the ${C}_{4v}$ ${C}_{3v}$ symmetries, respectively. There is a unique property of accidental number fourfold degeneracy eigenstates that gives rise to twofold-degenerate Friedrich-Wintgen (FW) bound states in continuum (BICs). Compared usual FW BICs, degenerate BICs maintain high $Q$ factor wide range size resonators. T...

The anion of the title salt, 2C(4)H(12)N(+)·S(2)O(3) (2-)·4H(2)O, possesses approximate C(3v) symmetry. The water mol-ecules themselves engage in hydrogen bonding, forming a ribbon running along the a axis; adjacent chains are linked to the thio-sulfate anions by hydrogen bonds, forming a three-dimensional network. The cavities in the network are occupied by the tetra-methyl-ammonium counter ions.

This paper proposes an approach for designing a R-2R 10 bit Digital to Analog Converter (DAC) which could be made to operate at low voltage supply by efficiently exploiting the cascaded Operational Amplifier (Op-Amp) architecture. The DAC operates at a 3V power supply with a settling time of 50-100ns , dynamic range of around 50-60 dB for signals upto a frequency of 10Mhz. Graph & simulation re...

Analytical methods were developed for the identification of major degradation products of Ketoconazole, an antifungal agent. The stressed degradation of Ketoconazole drug substance was performed under acid, base, thermal, photo and oxidative stress conditions. The major degradation was observed under acid, base and oxidative stress conditions. The degradation study was performed on Inertsil ODS...

This paper presents a switched current multiplier, dedicated for the use in highly parallel computation arrays or neural networks. It is designed for 3V supply voltage, performing 50k multiplications per second with a power dissipation of 100nW and an accuracy better than 1.5% considering the presence of possible device-mismatch. 2nd Electronic Circuits and Systems Conference ECS’99, 6-8th Sept...

A numerical study of airflow and spray transport from rotary cup atomizer using KIVA-3V is carried out. The numerical result show that the electrostatic field speed up spray droplet speed and improve transfer efficiency. Breakup model produces smaller drops which are entrained into the center recirculation zone. The results of a parametric study considering different cup rotational speed, shapi...

With the emergence and popularity of online social networking technologies (Web 2.0) students are exploring new concepts of self, identity and community both in real and virtual spaces. New theories are necessary to develop social policy responses, including those of educational systems and institutions, to the consequences of these new conceptualisations. We present an original theoretical mod...

Glucocorticoid receptor (GR) is a ligand-activated nuclear receptor which is widely distributed in the brain. Many types of neurons and glial cells are known to express GR, but the expression of GR in ependymal cells has yet to be identified. The present study therefore was undertaken to determine whether ependymal cells express GR and coactivators of GR, such as steroid receptor coactivator 1 ...