Results 181 to 190 of about 2,084 (216)

Output Quality, Productivity, and Demand: Evidence from the Chinese Steel Industry

The RAND Journal of Economics, EarlyView.
ABSTRACT Unobserved objective output quality complicates the analysis of firm productivity and demand because higher‐quality products entail higher costs but offer greater consumption benefits. Using a panel of firms with output quality data, we decompose quantity‐based productivity into fundamental productivity and the costs of quality, and separate ...
Jing Li, Shengyu Li, Hongsong Zhang
wiley   +1 more source

Health risk assessment of potentially toxic elements in bread from Iranian markets using Monte Carlo simulation. [PDF]

Sci Rep
Asadi Touranlou F, Tavakoly Sany SB, Ghayour Mobarhan M, Khanzadi S, Afshari A, Hashemi 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

Microstructure of the Working Layer of X46Cr13 Steel in a Bimetal System with Gray Cast Iron. [PDF]

Materials (Basel)
Przyszlak N, Wróbel T, Dulska A, Nuckowski PM, Łukowiec D, Stawarz M.   +5 more
europepmc   +1 more source

The Provenance of Silver in the Viking‐Age Hoard From Bedale, North Yorkshire

Archaeometry, EarlyView.
ABSTRACT The acquisition of silver was a key motive propelling the Viking expansion out of Scandinavia; identifying the sources of Viking silver during the early part of the Viking Age can provide critical insights into the relative significance of western European and eastern, Islamic wealth in the Viking expansion.
Jane Kershaw, Stephen Merkel, Andrew Woods, Jane Evans, Vanessa Pashley, Simon Chenery   +5 more
wiley   +1 more source

The Effects of Cr and Mo Additions on the Corrosion Behavior of Fe-Al Alloys in 0.5 M H₂SO₄ and 3.5 wt.% NaCl Aerated Aqueous Solutions. [PDF]

Materials (Basel)
Yen CC, Chang TH, Lin YX, Wu MY, Yen SK.
europepmc   +1 more source

The Fiery Eyes of a Maenad: Origin Determination of Faceted Garnet Eye Inlays in a Roman Bronze Bust From Southern Tyrol

Archaeometry, EarlyView.
ABSTRACT In 1837, the Tyrolean State Museum Ferdinandeum in Innsbruck, Austria, purchased a Roman bronze statue of a maenad from the 2nd century ce with red garnets as facetted eye inlays found near Brixen, Southern Tyrol. These garnets were investigated using optical microscopy, a portable hand‐held and a stationary micro‐X‐ray fluorescence device, as
H. Albert Gilg, Simon Wagner, Anton Höck, Peter Tropper   +3 more
wiley   +1 more source

Welding Fumes in a Chinese Shipyard: Exposure Characteristics and Occupational Health Risk Assessment. [PDF]

Toxics
Hu Y, Zhang J, Lyu X, Ni C, Wang H.
europepmc   +1 more source

The Material Basis of 18th‐Century Meissen Porcelain

Archaeometry, EarlyView.
ABSTRACT In the summer of 1708, the quest for making hard‐paste porcelain from Saxonian clay and other mineral resources succeeded. This was achieved by applying as its essential ingredient newly discovered pure kaolin from Heidelsberg near Aue, western Saxon Ore Mountains.
Robert B. Heimann
wiley   +1 more source