Search results for " Definition"
showing 10 items of 162 documents
Tommaso Maria Napoli Utriusque Architecturae Compendium Roma 1688 Breve trattato sulle fabbriche civili e militari e la conservazione delle architett…
2013
Il volume Tommaso Maria Napoli Utriusque Architecturae Compendium Roma 1688 Breve trattato sulle fabbriche civili e militari e la conservazione delle architetture del frate domenicano Tommaso Maria Napoli, vuole contribuire ad accrescere le nostre conoscenze sui principi che dovevano sottendere alla realizzazione dell’architettura civile e militare del periodo barocco e tardo barocco, così come espressi nel breve trattato scritto dal frate architetto, nato a Palermo, Tommaso Maria Napoli (1659-1725), e pubblicato a Roma alla fine del Seicento. Alla traduzione dal latino del trattato, redatta da esperti (Fabio Zarbo e Pietro Zarbo), è inclusa un’interessante ricerca, redatta congiuntamente c…
More on Diagrams
2017
The aim of this chapter is to introduce and study additional structures on a diagram such that its diagram category becomes a rigid tensor category. The assumptions are tailored to the application to Nori motives.
Polluting loads detection in power systems: a decision-making strategy based on nonactive power measurements
2010
In this paper a novel decision-making strategy is proposed for the detection of polluting loads in three-phase power systems. It makes use of simple indices, which are expressed as a function of some nonactive power quantities, previously proposed by the authors and derived from the approach of the IEEE Std. 1459–2000. The decision-making rules for the proposed strategy are presented and discussed, by means of some simulation tests.
A Time-Domain Approach Based on the IEEE Std 1459-2000 for the detection of Loads Producing Harmonic Distortion
2008
This paper presents a novel strategy for the detection of harmonic sources in power systems for both the single-phase and the three-phase systems. It is based on the IEEE Std. 1459-2000 approach and it is based only on the separation of the fundamental components from the harmonic content of voltage and current. The proposed strategy do not require any spectral analysis of voltages and currents and it can be entirely implemented in the time domain. In the paper, the formulation of the novel approach is given and some simulation results are presented.
An enhanced approach based on IEEE 1459 for the detection of disturbing loads in distorted and unbalanced three-phase power systems
2009
This paper presents an enhanced approach for the detection of disturbing loads in distorted and/or unbalanced three-phase power systems in both cases of three and four-wires. It is based on the IEEE Std. 1459-2000 effective apparent power resolution and it requires only the separation of the fundamental components of voltage and current from the remaining harmonic content. In the paper, the formulation of the novel approach is given and some simulation results are presented.
Disturbing loads identification in power systems: a single-point time-domain method based on IEEE 1459-2000
2009
This paper presents a single-point method for the identification of prevailing disturbing loads in power systems for both single-phase and three-phase applications downstream or upstream from the metering section. It is based on the simultaneous measurement of three nonactive power quantities, which are based on the IEEE Std. 1459-2000 approach. The proposed method is only based on the separation of the fundamental components from the harmonic content of voltage and current; thus, it does not require any spectral analysis of the voltages and current. In this paper, the formulation of the proposed method and its time-domain implementation are described; moreover, some simulation results are …
What is a tree in the Mediterranean Basin hotspot? A critical analysis
2019
Background: Tree species represent 20% of the vascular plant species worldwide and they play a crucial role in the global functioning of the biosphere. The Mediterranean Basin is one of the 36 world biodiversity hotspots, and it is estimated that forests covered 82% of the landscape before the first human impacts, thousands of years ago. However, the spatial distribution of the Mediterranean biodiversity is still imperfectly known, and a focus on tree species constitutes a key issue for understanding forest functioning and develop conservation strategies. Methods: We provide the first comprehensive checklist of all native tree taxa (species and subspecies) present in the Mediterranean-Europ…
Ocho notas sobre la Casa Farnsworth de Ludwig Mies van der Rohe
2020
Mies was in the top of his career when he built the Farnsworth House. The analysis of this work shows some characteristics of his architectural thought: the relationships between architecture and nature, the definition of the pavilion type, his concept of architectural space, the role of structure and limits, the idea free plan and the meaning of construction
Coordinate compounding in English and Spanish
2011
Coordinate compounding is a process which has been only sporadically considered in wordformation studies on Germanic and Romance languages. In this paper, we compare the situation in English with that in Spanish as far as formal structure and semantics are concerned. To this end, an operational definition of coordinate compounding is first provided, after which a semantic classification of coordinate compounds is developed. For each type, variants are discussed, representative examples are provided, and similarities and dissimilarities between the two languages are highlighted. We finish by raising the issues of recursiveness and productivity in coordinate compounding and we examine the pos…
From corona virus to corona crisis : the value of an analytical and geographical understanding of crisis
2020
Abstract The term ‘crisis’ is omnipresent. The current corona virus pandemic is perceived as the most recent example. However, the notion of crisis is increasingly deployed as a signifier of relevance, rather than as an analytical concept. Moreover, human geography has so far little contributed to the interdisciplinary crisis research field which is fixated on the temporal aspects of crisis but neglects its spatiality. Against this background, the first aim of the paper is to demonstrate the value of thinking about crisis analytically. Therefore, we introduce theoretical knowledge developed within a recently emerging literature on crisis management. Second, we demonstrate the relevance of i…