Das Titelbild zeigt eine Diazotypie der Wiener Oper. Bei Anfertigung dieses Bildes wurde von üblichen Vorgehensweise (Bilderstellung durch Synthese eines Azofarbstoffes) abgewichen und die Aryldiazonium-Kationen mit Ammoniakmolekülen zur Reaktion gebracht. Unter UV-Licht (Bild unten) ist zu erkennen, dass bei Belichtung auch ein fluoreszierender Stoff entstanden (siehe Beitrag „Diazotypie -- Ei...

In a recent paper, Brusco, Khn and Steinley [Ann. Oper. Res. 206:611-626 (2013)] conjecture that the 2 bins special case of the one-dimensional minimax bin-packing problem with bin size constraintsmight be solvable in polynomial time. In this note, we show that this problem is NP-hard for the special caseand thatit is strongly NP-hard for the general problem. We also propose a pseudo-polynomial...

Tracking control of constrained nonlinear systems is a challenging problem which has recently attracted considerable attention. In particular, a successful approach is based on the so called Reference Governor (RG) [1]-[4]. The RG is essentially a nonlinear device which manipulates on-line a command input to the suitably pre-compensated closed-loop system so as to impose constraint satisfaction...

Although the deployment and integration of isolated microgrids is gaining widespread support, regulation microgrid frequency under high penetration levels renewable sources still being researched. Among numerous studies on stability, one key approach based integrating an additional loop with virtual inertia control, designed to mimic behavior traditional synchronous machines. In this survey, re...

The paper involves the simulation and design of a fully differential common mode feedback circuit for a two stage Oper`ational Transconductance Amplifier. This OTA serves as the loop filter for a delta sigma modulator in 180nm Technology. Simulations were performed in Cadence software. Step response and ac analysis of the OTA was also conducted. The nonlinearity characteristics of OTA were stud...

In this article, we deduce a uniqueness result of entire functions that share a small entire function with their two difference operators, generalizing some previous theorems of (Farissi et al. in Complex Anal. Oper. Theory 10:1317-1327, 2015, Theorem 1.1) and (Chen and Li in Adv. Differ. Equ. 2014:311, 2014, Theorem 1.1) by omitting the assumption that the shared small entire function is perio...

. A bichannel, portable, low cost, hybr~d processor capable of interactive realtime image processing for use in the field or laboratory is described. Major features of the Programmable Video Processor (PVP) such as operation as a remote pre-processor controlled by a host image processing computer facility or manual operation as a stand-~lone processor, digitally programmed oper~tl~g mode co~tro...

Department of Biostatistics, Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD 21205, USA School of Oper. Res. and Ind. Eng., Cornell University, Rhodes Hall, NY 14853, USA Institute of Statistics, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium Department of Statistics, School of Mathematics, University of New South Wales, Sydney 2052, Australia e-mail: ccrainic@j...