Results 161 to 170 of about 6,429 (270)

Corneal power modelling with OCT data – Thin and thick lens paraxial models versus raytracing

Acta Ophthalmologica, EarlyView.
Abstract Background Evaluating keratometric power with Zeiss index (PKZ), paraxial thick cornea power (Gullstrand [PG]) and power referenced to the front (PFV) and back vertex plane (PBV) and raytracing power (PR), and modelling the deviation from PKZ with a multivariable linear prediction model.
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Peter Hoffmann, Jascha Wendelstein   +4 more
wiley   +1 more source

Discovering the dual degradation pathway of emerald green in oil paints: The effects of light and humidity. [PDF]

Sci Adv
Carboni Marri S, Monico L, Rosi F, Miliani C, Vivani R, Janssens K, De Meyer S, Mathon O, Cotte M, Burghammer M, Garrevoet J, Falkenberg G, Avranovich Clerici E, Rios-Casier A, Van der Snickt G, Romani A.   +15 more
europepmc   +1 more source

Lithic analysis in African archaeology: Advances and key themes

Archaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski, Amanuel Beyin, Justin Pargeter   +2 more
wiley   +1 more source

Lithium-ion battery waste as a robust oxygen evolution reaction electrocatalyst for seawater splitting. [PDF]

Sci Rep
Warczak M, Belka K, Urbańska W, Michalska M, Nwaji N, Osial M.   +5 more
europepmc   +1 more source

Quality from Kent: Preliminary results from the analysis of fifth‐ to seventh‐century silver alloys

Archaeometry, EarlyView.
Abstract This paper explores early results from the chemical and lead isotope analysis of 30 silver‐alloy objects from southeast England dating between the fifth and seventh centuries CE, presenting limited aspects of the three main analyses that were conducted. First, a comparison of the results gained from surface x‐ray fluorescence (pXRF) values and
Toby F. Martin, Matthew J. Ponting
wiley   +1 more source

Experimental Research on the Ecological Recovery of Metals from Used Ni-MH Batteries. [PDF]

Materials (Basel)
Ghica VG, Miculescu F, Vasile A, Saftere ND, Markopoulos AP, Karabulut Ș, Petrescu MI, Tanasă E, Icleanu A.   +8 more
europepmc   +1 more source

Production of arsenical bronze using speiss on the Elephantine Island (Aswan, Egypt) during the Middle Kingdom (Middle Bronze Age) (c.2000–1650 BCE)

Archaeometry, EarlyView.
Abstract This paper presents the first direct evidence of the slags produced during the cementation alloying process of Cu with speiss inside ceramic crucibles, thus representing Cu alloying with As in Middle Kingdom Egypt. The settlement deposits from the Middle Bronze Age were excavated on Elephantine Island, within modern Aswan.
Jiří Kmošek, Martin Odler
wiley   +1 more source

Immobilization of Lead and Zinc in Tailings Sand Using a Stabilizer Synthesized from Granite Sawdust for Mine Remediation. [PDF]

Materials (Basel)
Shi Y, Liang M, Xue M, Li Z, Yang X, Ma C, Duan L, Cai J.   +7 more
europepmc   +1 more source

‘You Load Sixteen Tons, What Do You Get?’. The Jodłowno Hoard (Pomerania, Poland) as Evidence of Long‐Distance Contacts in the Early Iron Age

Archaeometry, EarlyView.
ABSTRACT This study presents multifaceted analyses of metal artefacts from the Jodłowno Hoard (Northern Poland), revealing that the metal originated from Iberian polymetallic ore deposits. Transported as raw ingots via Atlantic maritime routes, this copper was reworked locally into regionally distinctive forms.
K. Nowak, P. Gan, Z. Stos‐Gale, K. Cywa, J. Karasiński   +4 more
wiley   +1 more source

Influence of Cement Type on the Performance and Durability of Cement Paste and Concrete with Wastewater. [PDF]

Materials (Basel)
Tsardaka EC, Anastasiou EK, Karanafti A, Ferriz-Papi JA, Valentin J, Theodosiou T.   +5 more
europepmc   +1 more source