Results 171 to 180 of about 242,865 (363)

Study on the effect of sintered secondary aluminum ash prepared pottery sand on the mechanical properties and ecological performance of high-strength cement-based materials

open access: yesCase Studies in Construction Materials
To reutilize secondary aluminum ash and heavy metal sludge, this study investigates the impact of pottery sand content and its pre-wetting state, making by sintering all of the solid waste mentioned above, on the workability, mechanical properties, and ...
Jianming He   +4 more
doaj  

A study on the characteristics of the excavated pottery in Hanseong and Sabi periods of the Baekje Kingdom (South Korea): mineralogical, chemical and spectroscopic analysis

open access: yesHeritage Science
The study analyzes the black color factors of black-burnished pottery excavated from the Pungnap Fortress and the Seokchon Tomb during the Hanseong period of the Baekje Kingdom.
Hyunkyung Choi   +5 more
doaj   +1 more source

Environmental effects on the spread of the Neolithic [PDF]

open access: yesarXiv, 2005
The causes and implications of the regional variations in the spread of the incipient agriculture in Europe remain poorly understood. We apply population dynamics models to study the dispersal of the Neolithic in Europe from a localized area in the Near East, solving the two-dimensional reaction-diffusion equation on a spherical surface.
arxiv  

Multiple indicators record human adaptations to climatic change during the Middle Holocene at the Wanbei site in the middle and lower Huai River valley, China

open access: yesBoreas, EarlyView.
The archaeological sediment sequences analysis from the Wanbei site reveals a predominantly warm and humid climate with a brief cooling phase between 5600 and 5400 a BP, during the Middle Holocene in the middle and lower Huai River valley. Despite the cooling trend, rice remained the dominant crop in mixed farming, while the proportion of millet ...
Weixin Tian   +9 more
wiley   +1 more source

Corrosion mechanisms for lead-glazed pottery from Qibi Ming Tomb of the Tang Dynasty in Xianyang, China

open access: yesHeritage Science
Six corroded glazed pottery figurines, which excavated from the Qibi Ming Tomb of the Tang Dynasty in Xianyang, were selected to study the corrosion mechanism.
Yanli Li   +5 more
doaj   +1 more source

Project G.N.O.S.I.S.: Geographical Network Of Synoptic Information System [PDF]

open access: yesarXiv, 2012
Everybody knows how much synoptic maps are useful today. An excellent example above all is Google Earth: its simplicity and friendly interface allows every user to have the Earth maps ready in just one simple layout; nevertheless a crucial dimension is missing in Google Earth: the time.
arxiv  

Accurate compound-specific 14C dating of archaeological pottery vessels

open access: yesNature, 2020
E. Casanova   +24 more
semanticscholar   +1 more source

Optimisation of purple dyeing with Mexican cochineal in cotton with multivariate analysis and the response surface method

open access: yesColoration Technology, EarlyView.
Abstract This study aims to optimise the dyeing process of cotton fabrics using Mexican cochineal (Dactylopius coccus Costa). The objective is to obtain purple hues through the design of experiments and by using multivariate analysis. Plackett–Burman experimental designs and the response surface method were used to systematically optimise the dyeing ...
Ernesto Olvera‐Quintanar   +3 more
wiley   +1 more source

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