Previous literature on very large scale integration routing and wiring estimation typically assumes a one-to-one correspondence between terminals and ports. In practice, however, each “terminal” consists of a large collection of electrically equivalent ports, a fact that is not accounted for in layout steps such as wiring estimation. In this paper, we address the general problem of minimum-cost...

Many scientific applications use MPI collective communications intensively. Therefore, efficient and scalable implementation of collective operations is critical to the performance of such applications running on clusters. Quadrics QsNet is a high-performance interconnect for clusters that implements some collectives at the Elan level. These collectives are directly used by their corresponding ...

Photonics is a leading approach in realizing future quantum technologies and recently, optical waveguide circuits on silicon chips have demonstrated high levels of miniaturization and performance. Multimode interference (MMI) devices promise a straightforward implementation of compact and robust multiport circuits. Here, we show quantum interference in a 2 × 2 MMI coupler with visibility of V=9...

Philippine Sea Analysis Our approach utilizes a combination of at-sea measurements, theoretical modeling and computational simulations. Our primary measurements are two 60 h transmission exercises over a range of roughly 500 km. We transmitted the signals: the acoustic receptions (and associated receiver details) are provided by Worcester at Scripps, and the environmental measurements at the re...

Although it has been known for some time that quantum mechanics can be formulated in a way that treats prediction and retrodiction on an equal footing, most attention in engineering quantum states has been devoted to predictive states, that is, states associated with a preparation event. Retrodictive states, which are associated with a measurement event and propagate backwards in time, are also...

This paper proposes two new soft-switching transformerless converters with high voltage conversion ratio. These proposed converters achieve soft-switching each with a single auxiliary resonant cell. The merit of these converters is reduced switching losses with lesser number of devices. The main switching devices are turned off with zero current switching (ZCS). Apart from the soft-switching fe...

This paper discusses the basic family of three-level (TL) dc–dc converters. The origin of TL converters and their basic topological variations are described. Systematic procedures leading to improved and simplified circuit topologies are discussed. A feedforward control scheme that ensures the proper functioning of these converters is proposed. Moreover, the virtues and drawbacks of these conve...

Principles and possibilities for design and implementation of parallel analog to digital converters for application in ternary CMOS digital systems are considered and proposed in the paper. Such converters perform signal conversion from analog to ternary digital signal in CMOS ternary digital systems. First, general principle and structure for implementation and design of CMOS parallel analog t...