101,852 research outputs found
Un laboratorio per la riproduzione di condizioni di bassa power quality registrate sul campo per la taratura di contatori di energia attiva
No full textSistema automatico di taratura ZERA MTS310 e relativo software di controllo WinSAM: allestimenti circuitali e impostazione sequenze di misura
No full textNel 2019 il Laboratorio potenza ed energia dell’INRIM ha acquistato dalla ZERA un nuovo sistema di generazione per la taratura dei wattmetri, con l’obiettivo di automatizzare il processo di taratura fino a quel momento svolto rincipalmente con il campione primario. Il sistema è composto dal generatore trifase di potenza fittizia ZERA MTS310[1], in grado di generare fino a 320V e 120A, abbinato al comparatore ZERA COM5003[2] che fornisce all’MTS310 un feedback sui valori generati e viene usato come strumento di riferimento. Il presente rapporto si propone di essere utilizzabile come manuale di istruzioni per l’esecuzione di tarature con il nuovo sistema. La prima parte descrive la strumentazione e spiega come connettere il wattmetro da tarare al sistema. La seconda parte descrive la taratura manuale, cioè quella in cui ogni parte del processo deve essere gestita in tempo reale dall’operatore. Infine, la terza parte si concentra sulla taratura automatica, cioè quella in cui le varie parti del processo vengono programmate dall’operatore e poi eseguite dal sistema quando la misura viene avviata, senza ulteriore intervento dell’operatore
A calibration-verification testbed for electrical energy meters under low power quality conditions
No full textA calibration/verification testbed for electrical energy meters is under development at the Istituto Nazionale di Ricerca Metrologica, the National Metrology Institute of Italy. The testbed will be employed for the calibration of commercial static power energy meters under low power conditions and for simulating the verification in the field of energy meters under real operational conditions. The activity is in collaboration with the Ministry for Economic Development and aims to the future development of regulatory documents for energy metering verification
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Recommended from our members
3346: Samuel G. Freedman, author, 2013
No full textPhotograph of author Samuel G. Freedman, at NT Daily Slash meeting in the Mayborn School of Journalism at UNT
Un laboratorio di taratura e verifica dei contatori elettrici anche in condizioni di scarsa Power Quality
No full textLa misura accurata dell’energia elettrica `e determinante, oltre che per un’equa tariffazione, anche per
garantire l’osservabilit`a della rete elettrica. Nella transizione verso il concetto di smart grid, la diffusione
della microgenerazione e di carichi non lineari ha peggiorato i parametri di power quality della rete.
La misura delle corrispondenti forme d’onda di tensione e corrente, non pi`u sinusoidali, pu`o non avere
una riferibilit`a adeguata
The Right to Strike under the United States Constitution: Theory, Practice, and Possible Implications for Canada
No full textAnswering critics of the Canadian Supreme Court's judgment in B.C. Health, the author argues that the Court laid the foundation for a principled and durable doctrine protecting constitutional labour rights, one that goes directly to the heart of the matter — the inequality of workers’ power in the employment relation. In the author’s view, two paths could lead from B.C. Health to the recognition of Charter protec- tion for a right to strike: one that treats the right as an accessory to col- lective bargaining, and one that upholds the right directly on the basis of the Charter values of equality and participation. The author supports the latter approach, contending that constitutional rights should be defined in relation to fundamental values, in a way that is not contingent on time-bound or fact-sensitive assessments about the role of strikes within a particular collective bargaining regime. Although a Charter right to strike may involve the courts in difficult choices about when to defer to legislative policy decisions, and courts may lack the institutional capac- ity to deal effectively with labour law issues, the author points out that judges can look to ILO standards for expert guidance. Noting that the U.S. experience in this area might be of considerable use to Canadians, the author concludes by providing an overview of American case law concerning a constitutional right to strike.Peer reviewe
G-Rank: Unsupervised Continuous Learn-to-Rank for Edge Devices in a P2P Network
No full textRanking algorithms in traditional search engines are powered by enormous training data sets that are meticulously engineered and curated by a centralized entity. Decentralized peer-to-peer (p2p) networks such as torrenting applications and Web3 protocols deliberately eschew centralized databases and computational architectures when designing services and features. As such, robust search-and-rank algorithms designed for such domains must be engineered specifically for decentralized networks, and must be lightweight enough to operate on consumer-grade personal devices such as a smartphone or laptop computer. We introduce G-Rank, an unsupervised ranking algorithm designed exclusively for decentralized networks. We demonstrate that accurate, relevant ranking results can be achieved in fully decentralized networks without any centralized data aggregation, feature engineering, or model training. Furthermore, we show that such results are obtainable with minimal data preprocessing and computational overhead, and can still return highly relevant results even when a user’s device is disconnected from the network. G-Rank is highly modular in design, is not limited to categorical data, and can be implemented in a variety of domains with minimal modification. The results herein show that unsupervised ranking models designed for decentralized p2p networks are not only viable, but worthy of further research.https://github.com/awrgold/G-RankComputer Scienc
- …
