Results 101 to 110 of about 270,822 (264)

Dating the Middle Palaeolithic of Fumane Cave by the combined ESR/U‐series method

Journal of Quaternary Science, EarlyView.
ABSTRACT Fumane Cave, located in Northern Italy, is a major prehistoric site for understanding late Neandertal and early modern human behaviours. The cave contains a 12‐m‐thick stratigraphic sequence of Middle and Upper Palaeolithic layers, which have yielded a number of flint artefacts and faunal remains.
Christophe Falguères, Giulia Gruppioni, Jean Jacques Bahain, Jean Michel Dolo, Marco Peresani   +4 more
wiley   +1 more source

Absorption of gases by charcoal [PDF]

Journal of the Franklin Institute
n ...
openaire   +2 more sources

Stratigraphy and geomorphology of Des‐Cubierta Cave (Pinilla del Valle, Madrid, Spain): Geological insights into a Neanderthal symbolic accumulation of large crania

Journal of Quaternary Science, EarlyView.
ABSTRACT Des‐Cubierta Cave, part of the Calvero de la Higuera complex, is situated in the intramountainous upper valley of the Lozoya River within the Guadarrama Range. The cave's geological, palaeontological, and archaeological record reveals a complex history of sedimentary and anthropogenic processes spanning hundreds of thousands of years ...
David Manuel Martín‐Perea, Enrique Baquedano, Juan Luis Arsuaga, César Laplana, Ana Isabel Ortega, Lucía Villaescusa, Belén Márquez, Rosa Huguet, Abel Moclán, Sandra Gómez Soler, Xabier Arroyo, Laura Rodríguez, Rebeca García‐González, M. Cruz Ortega, Jesús Masa‐Andrés, Diego J. Álvarez‐Lao, Nuria García, M. Ángeles Galindo‐Pellicena, Tom Higham, Alfredo Pérez‐González   +19 more
wiley   +1 more source

Two systems developed for purifying inert atmospheres [PDF]

, 1969
Two systems, one for helium and one for argon, are used for purifying inert atmospheres. The helium system uses an activated charcoal bed at liquid nitrogen temperature to remove oxygen and nitrogen. The argon system uses heated titanium sponge to remove
Foster, M. S., Johnson, C. E., Kyle, M. L.   +2 more
core   +1 more source

Challenges in dating blanket peat and implications for understanding its initiation in Ireland

Journal of Quaternary Science, EarlyView.
ABSTRACT Blanket peat is widespread in maritime extra‐tropical environments. Prehistoric land‐use activity was traditionally invoked as the stimulus of blanket peat initiation in the British Isles, but recently, climate has been viewed as the driver of peat formation.
Helen Essell, Gill Plunkett, Maarten Blaauw   +2 more
wiley   +1 more source

PENYISIHAN LOGAM BESI (Fe) PADA AIR SUMUR DENGAN KARBON AKTIF DARI TEMPURUNG KEMIRI [PDF]

, 2013
Active charcoal can be made and candlenut shell, what in this time still in the form of waste. Candlenut shell processing as charcoal active is one of easy way to add economic point.
DG Okayadnya, -, Nunik , Prabarini
core   +1 more source

Raman Analysis of Roman Mosaics From the Upper Guadalquivir Valley (Spain)

Journal of Raman Spectroscopy, EarlyView.
This work is focused on the Raman analysis of two Roman mosaics from Jaén (Spain) using portable and benchtop equipment, complemented by elemental analysis using EDXRF and petrographic analysis. The results obtained have provided a detailed characterisation of the tesserae.
A. Sánchez, M. Montejo, J. Tuñón, P. Vandenabeele, G. De Gea, M. Gutiérrez, L. Vico, R. Martínez   +7 more
wiley   +1 more source

Effects of (Assisted) Natural Regeneration on Infiltrability and Preferential Flow Pathways in the Khasi Hills (Meghalaya, NE India)

Land Degradation &Development, Volume 36, Issue 5, Page 1564-1578, March 2025.
ABSTRACT Intensified slash‐and‐burn cultivation and forest clearing have caused severe land degradation in the Khasi Hills (Meghalaya plateau, NE India). Despite very high annual rainfall, the region faces severe water scarcity during the dry season.
Bob W. Zwartendijk, L. Adrian Bruijnzeel, Chandra P. Ghimire, Felix Pde, Mark Mulligan, Jun Zhang   +5 more
wiley   +1 more source

Community and Institutional Drivers of Deforestation, Environmental Impacts, and Extension Interventions for Forest Management in the Hindu Kush Himalaya

Land Degradation &Development, EarlyView.
ABSTRACT Deforestation in Pakistan's mountainous regions, particularly in the Hindu Kush Himalaya (HKH), presents significant environmental, social, and economic challenges. Despite various control measures, deforestation persists due to institutional weaknesses and community pressures.
Ayat Ullah
wiley   +1 more source

Interactions Between Polyethyleneimine Xerogels and Acetic Acid Vapor from Degraded Cellulose Acetate. A Novel Therapy for Motion Picture Films Affected by the “Vinegar Syndrome”

Macromolecular Rapid Communications, EarlyView.
Motion picture films made of cellulose acetate are subjected to chemical degradation primarily due to a deacetylation process known as “vinegar syndrome”. A polyethyleneimine‐based xerogel is proposed as an innovative chemical inhibitor to absorb and neutralize acetic acid by converting it into ammonium acetate through an acid/base reaction.
Francesca Porpora, Luigi Dei, Camilla Forcellini, Carlotta D'Aleo, Lorenzo Lisi, Marianna De Sanctis, Emiliano Carretti   +6 more
wiley   +1 more source