1,350 research outputs found
UPS system: How can future technology and topology improve the energy efficiency in data centers?
A Data Center can consist of a large group of networked servers and associated power distribution, networking, and cooling equipment. All these applications consume enormous amounts of energy which result in a significant increase in energy inefficiency problems. One of the causes of Data Center energy inefficiency power distribution is from the uninterruptible power supply (UPS). The UPS system is an alternate or backup source of power linking between mains power supply and end critical loads in order to provide back-up power and protection for the sensitive load. This study attempts to answer the question of how can future UPS topology and technology improve the efficiency of Data Center. In order to analyze the impact of different UPS technologies and their operating efficiencies, a model for a medium size Data Centre is developed, and load schedules and worked schematics were created to analyze and test the components of each of the UPS system topologies
Coiterative Morphisms: Interactive Equational Reasoning for Bisimulation, using Coalgebras
ter: SEN 3
Abstract: We study several techniques for interactive equational reasoning with the bisimulation equivalence. Our work is based on a modular library, formalised in Coq, that axiomatises weakly final coalgebras and bisimulation. As a theory we derive some coalgebraic schemes and an associated coinduction principle. This will help in interactive proofs by coinduction, modular derivation of congruence and co-fixed point equations and enables an extensional treatment of bisimulation. Finally we present a version of the lambda-coinduction proof principle in our framework
Higher Order Implementation of Kahn Networks in Maude: Alternating Bit Protocol
We implement Kahn networks in Maude system by using behavioural theory of streams and encoding higher order function types. As an example we implement the alternating bit protocol in our framework
Environmental stress recovery of horned poppy (Glaucium spp.) using growth regulator treatments
Includes bibliographical references.2015 Fall.To view the abstract, please see the full text of the document
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Mechanisms of estradiol in fear circuitry: implications for sex differences in psychopathology
Over the past two decades, substantial knowledge has been attained about the mechanisms underlying the acquisition and subsequent extinction of conditioned fear. Knowledge gained on the biological basis of Pavlovian conditioning has led to the general acceptance that fear extinction may be a useful model in understanding the underlying mechanisms in the pathophysiology of anxiety disorders and may also be a good model for current therapies treating these disorders. Lacking in the current knowledge is how men and women may or may not differ in the biology of fear and its extinction. It is also unclear how the neural correlates of fear extinction may mediate sex differences in the etiology, maintenance, and prevalence of psychiatric disorders. In this review, we begin by highlighting the epidemiological differences in incidence rate. We then discuss how estradiol (E2), a primary gonadal hormone, may modulate the mechanisms of fear extinction and mediate some of the sex differences observed in psychiatric disorders
Operator-valued Schatten spaces and quantum entropies
Operator-valued Schatten spaces were introduced by G. Pisier as a
noncommutative counterpart of vector-valued -spaces. This family of
operator spaces forms an interpolation scale which makes it a powerful and
convenient tool in a variety of applications. In particular, as the norms
coming from this family naturally appear in the definition of certain entropic
quantities in Quantum Information Theory (QIT), one may apply Pisier's theory
to establish some features of those quantities. Nevertheless, it could be quite
challenging to follow the proofs of the main results of this theory from the
existing literature. In this article, we attempt to fill this gap by presenting
the underlying concepts and ideas of Pisier's theory in an almost
self-contained way which we hope to be more accessible, especially for the QIT
community at large. Furthermore, we describe some applications of this theory
in QIT. In particular, we prove a new uniform continuity bound for the quantum
conditional R\'enyi entropy.Comment: 41 page
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