We consider delay differential algebraic equations (DDAEs) to model interconnected systems with time-delays. The DDAE framework does not require any elimination techniques and can directly deal with any interconnection of systems and controllers with timedelays. In this framework, we analyze the properties of the H-infinity norm of interconnected systems with time-delays. We show that the stand...

Abstract—This paper deals with the modelling, analysis design and experimental validation of a robust control method for a permanent magnet synchronous machine (PMSM) supplied with a PWM inverter based on a monovariable H infinity standard controller. Under the influence of uncertainties and external disturbances, by a variation of ±10% of all motor parameters from the nominal values, the robus...

The study was carried out to investigate the drug release profiles of multi-unit dosage formulations of theophylline consisting of both the fast and slow release components in a unit dose. The fast release component consisted of conventional granules of theophylline formed by mixing the drug powder with starch mucilage (20% w/v) while the slow release component consisted of wax granulations of ...

An arrangement L of k pairwise non-parallel lines in the complex hyperbolic plane H(C) has a link at infinity K∞(L) comprising k unknotted circles in S, whose topology reflects the combinatorics of L “at infinity”. Many links at infinity are far from being fibered; but if L = C LR is the complexification of a connected hyperbolic R-line arrangement LR ⊂ H(R), then K∞(L) is fibered. §

Two tautomers of the new phosphinoaminothiazoline Ph2PNHC=NCH2CH2S, obtained from the reaction of 2-amino-2-thiazoline (ATHZ) with Ph(2)PCl, have been structurally characterized and the intermediate formation of the diphosphine Ph2PN=CN(PPh2)CH2CH2S has been demonstrated experimentally and by DFT calculations; reacts with [AuCl(THT)] to give [(AuCl)2] whereas the bidentate metalloligand cis-[Pt...

We assessed the pharmacokinetics and interaction of ABT-773 in 12 volunteers receiving ABT-773 alone or concomitantly with ranitidine or sucralfate. Data for 150 mg of ABT-773 were as follows: the maximum concentration of the drug in plasma (C(max)) was 318 ng/ml, its half-life was 5.66 h, and its area under the plasma concentration-time curve from 0 h to infinity (AUC(0- infinity )) was 1,662 ...