This paper describes the architecture and implementation of a DC-Uninterruptible Power Source (DC-UPS) designed as an internal component for IBM AS/400 processor and I/O towers. This DC-UPS supports a processor or I/O tower requiring a maximum of 3100 watts of input ac line power. Unlike the large majority of AC-Uninterruptible Power Sources (AC-UPSs) found in the marketplace, which supply 50–6...

The line-up task hides a plot of real data amongst decoys built around some plausible null hypothesis. It has been proposed as mechanism for lending greater reliability and confidence to statistical inferences made from graphics. proposition is seductive one, but whether or not line-ups guarantee consistent interpretation structure an open question, especially when applied representations geo-s...

This paper presents a new line-interactive UPS (uninterruptible power supply) system with active power-line conditioning capability. This system uses one power electronic inverter to implement two functions: maintaining uninterruptible power for critical loads, and suppressing power-line harmonics. The system offers efficient and economical power conditioning. Experimental validation is given.

In this paper we prove a conjecture by Feldman–Ilmanen–Knopf (2003) that the gradient shrinking soliton metric they constructed on the tautological line bundle over CP is the uniform limit of blow-ups of a type I Ricci flow singularity on a closed manifold. We use this result to show that limits of blow-ups of Ricci flow singularities on closed four-dimensional manifolds do not necessarily have...

BACKGROUND Undifferentiated pleomorphic sarcoma (UPS), previously known as malignant fibrous histiocytoma, comprises a series of high-grade soft tissue sarcomas, which fail to exhibit any specific line of differentiation by using currently available ancillary techniques. Studies on gene mutation screening occurring in UPS are rarely conducted. In this study, we described a case of UPS and analy...

Marital discord is costly to children, families, and communities. The advent of the Internet, social networking, and on-line dating has affected how people meet future spouses, but little is known about the prevalence or outcomes of these marriages or the demographics of those involved. We addressed these questions in a nationally representative sample of 19,131 respondents who married between ...