Results 31 to 40 of about 1,046 (193)

Thermodynamische Betrachtungen des Entropieversuchs mit Citronensäure und Natriumcarbonat‐Decahydrat

open access: yesCHEMKON, EarlyView.
Die Gibbs‐Helmholtz‐Gleichung, die spontan aber endotherm ablaufende Reaktionen erklärt, wird oft nur theoretisch besprochen. In diesem Artikel wird an einem schulgängigen Versuch und anhand passender Werte das Ergebnis der Gleichung gezeigt und auf einen konkreten Aufbau angewandt.
Nico Meuter, Claudia Bohrmann‐Linde
wiley   +1 more source

Appearance-based evaluation of varnish removal methods in gilded surfaces

open access: yesHeritage Science, 2023
This paper outlines the use of bidirectional reflectance measurements for the characterisation and evaluation of appearance changes in gilded surfaces caused by varnishing and cleaning.
Yoko Arteaga   +4 more
doaj   +1 more source

Investigation of the Components of Patterns Providing Diversity in the Qur’an Numbered 487 in the Alanya Museum Inventory

open access: yesArt-Sanat, 2021
Among manuscripts preserved in museums and libraries in Turkey, the Qur’an has the most number of copies. Copies of decorated Qur’ans constitute the most precious pieces of the any collection. One of the fields in the Qur’an gilding tradition is Sûrebaşı
Ummuhan Kaçar, Muhammet Bilgen
doaj   +1 more source

Gilding [PDF]

open access: yesScientific American, 1909
n ...
openaire   +2 more sources

Gamify Your Lab – spieltypische Elemente zur Motivations‐ und Aktivierungssteigerung im Schülerlabor

open access: yesCHEMKON, EarlyView.
Das Projekt „Gamify your Lab“ verbindet experimentellen Chemieunterricht im Schülerlabor mit spieltypischen Elementen wie Narrativ, Rätselstruktur und Feedback. Zwei exemplarische Lerneinheiten zeigen, wie Experimente mit und ohne digitale Lernumgebung in motivierende, problemorientierte Lernkontexte eingebettet werden können. Erste Evaluationen weisen
Daniela Krischer, Volker Hofheinz
wiley   +1 more source

Seeking the Unseen: A Multimodal Non-Invasive Investigation of a Post-Byzantine Overpainted Icon

open access: yesHeritage
Religious panel paintings (icons) play a pivotal role in the rituals of the Eastern Orthodox Christian Church. However, their continuous use often results in physical degradation, prompting remedial interventions. Quite commonly, alterations were treated
Nikoleta V. Nikolaidou   +7 more
doaj   +1 more source

Seville City Hall Chapter Room ceiling decoration

open access: yesMateriales de Construccion, 2010
The present article describes a chemical and physical study of the colour, chemical composition and mineral phases of the decorative materials in the Seville City Hall Chapter House ceiling.
Durán A.   +5 more
doaj   +1 more source

Alternative Data for Realised Volatility Forecasting: Limit Order Book and News Stories

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT We examine whether two major alternative data sources, limit order book information and firm‐specific news, provide incremental predictive information for daily realised volatility forecasting within the HAR‐family, using a parsimonious framework to ensure practical implementation and comparability. The framework is designed for practical real‐
Eghbal Rahimikia, Ser‐Huang Poon
wiley   +1 more source

Pigments and Inks Applied in Juan Vespucci’s Portolan Chart (1520)

open access: yesColorants, 2022
Not many manuscript maps have been the object of material analysis so far. A portolan chart, signed and dated by Juan Vespucci in 1520, was studied in this research, conserved at the Archivo General de Indias in Seville (Spain).
Anabelle Kriznar   +5 more
doaj   +1 more source

Jewelled Byzantine and Medieval Reliquaries of the True Cross: Peridots and Other Gemstones in Material and Symbolic Perspective

open access: yesJournal of Raman Spectroscopy, EarlyView.
An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello   +2 more
wiley   +1 more source

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