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1. |
Record Nr. |
UNISA996278282903316 |
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Titolo |
IEEE Recommended Practices for Modulating Current in High-Brightness LEDs for Mitigating Health Risks to Viewers / / IEEE |
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Pubbl/distr/stampa |
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New York, N.Y. : , : IEEE, , 2015 |
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ISBN |
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Descrizione fisica |
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1 online resource (x, 66 pages) : illustrations |
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Collana |
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Disciplina |
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Soggetti |
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Modulation-doped field-effect transistors |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references. |
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Sommario/riassunto |
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This document includes a definition of the concept of modulation frequencies for light-emitting diodes (LEDs), a discussion on their applications to LED lighting, a description of LED lighting applications in which modulation frequencies pose possible health risks to users, a discussion of the dimming of LEDs by modulating the frequency of driving currents-voltage, and recommendations for modulation frequencies (flicker) for LED lighting and dimming applications to help protect against known potential adverse health effects. |
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2. |
Record Nr. |
UNINA9910972184503321 |
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Autore |
Davies Gwyn |
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Titolo |
The 2003-2007 Excavations in the Late Roman Fort at Yotvata / Gwyn Davies and Jodi Magness. With contributions by Nathan T. Elkins . |
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Pubbl/distr/stampa |
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Winona Lake : , : Eisenbrauns, , 2015 |
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©2015 |
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ISBN |
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Descrizione fisica |
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1 online resource (282 p.) |
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Altri autori (Persone) |
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MagnessJodi |
ElkinsNathan T |
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Disciplina |
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Soggetti |
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Kastell |
Römerzeit |
Funde |
Archäologische Stätte |
Romans |
Fortification, Roman |
Excavations (Archaeology) |
Classical antiquities |
Romans - Israel - Yoṭvatah |
Fortification, Roman - Israel - Yoṭvatah |
Excavations (Archaeology) - Israel - Yoṭvatah |
Bildband |
Israel Yoṭvatah |
Yoṭvatah (Israel) Antiquities, Roman |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di contenuto |
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Contents; Preface; The 2003-2007 Excavations: Architecture and Stratigraphy; The Pottery; The Glass; The Coins; The Militaria and Small Finds; The Faunal Remains; The Archaeobotanical Remains; _GoBack; _GoBack; _GoBack; Blank Page |
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Sommario/riassunto |
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The Late Roman fort at Yotvata is located in the southern Arava some |
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40 km north of Eilat/Aqaba (ancient Aila). The modern Hebrew name of the site is based on its suggested identification with biblical Jotbathah (Deut 10:7), where the Israelites encamped during their desert wanderings. The modern Arabic name of the site, Ein Ghadian, may preserve the ancient Roman name Ad Dianam. Because the Late Roman fort at Yotvata is visible as a low mound next to the Arava road, it has long been known to scholars. Each June between 2003 and 2007, Gwyn Davies (Florida International University) and Jodi Magness (University of North Carolina at Chapel Hill) co-directed excavations here. This volume provides the results of those excavations, adding substantially to our knowledge of Roman defenses in the third and fourth centuries of the Common Era, along the trade route that traversed the southern Arava and on the eastern frontier of the Empire. |
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