Results 141 to 150 of about 15,167 (290)

An Archaeometric Approach to Reveal Organic Compounds via GC‐MS Analyses of Two Discovered Incense Burners at Daba Al‐Bayah

open access: yesArchaeometry, EarlyView.
ABSTRACT This study focuses on two terracotta incense burners discovered in the Daba Al‐Bayah necropolis in the Musandam Peninsula (Oman), associated with an Iron Age collective tomb (LCG‐2). Through gas chromatography–mass spectrometry (GC‐MS), the organic residues preserved within these artifacts were analyzed to investigate their use and ...
Francesco Genchi   +3 more
wiley   +1 more source

Unsaturated Soils

open access: yes, 2013
This general report summarises the contributions on unsaturated soil mechanics submitted to the Discussion Session of TC106 – Unsaturated soils –at the 18th International Conference on Soil Mechanics and Geotechnical Engineering held in Paris in September 2013.
openaire   +1 more source

Investigating the Dietary, Economic, and Social Practices of a Neolithic Funnel Beaker Community in Wanna, Germany, Through Raw Material and Organic Residue Analyses of Pottery

open access: yesArchaeometry, EarlyView.
ABSTRACT This study details the analysis of an assemblage of Funnel Beaker pottery from Wanna in Northern Germany investigated using petrographic, geochemical, and organic residue analyses. The analyses revealed specialized production of pottery vessels for funerary contexts, but that domestic and funerary pottery were used intensively to process ...
I. L. Wiltshire   +4 more
wiley   +1 more source

Disentangling mechanisms that mediate soil fungal α and β diversity during forest secondary succession

open access: yesEcography, EarlyView.
Understanding the mechanisms controlling community diversity is a central, topic in ecology, particularly in microbial ecology. Although species pools and local assembly processes are believed to play non‐negligible roles in shaping the within‐community (α) and among‐community (β) diversity of microbial communities, their relative importance as ...
Xiao Zhang   +10 more
wiley   +1 more source

On the theory of Brutsaert about elastic wave speeds in unsaturated soils

open access: yes, 2016
Recently a theoretical model for elastic wave speeds in partially-saturated soils proposed by Brutsaert (and Luthin) in 1964 has been used to investigate the relationship between the elastic wave speeds and the moisture content in soils.
Whalley, W. R.   +4 more
core   +1 more source

Living on the edge – physiological tolerance to frost and drought explains range limits of 35 European tree species

open access: yesEcography, EarlyView.
Species distribution models are key to evaluate how climate change threatens European forests and tree species distributions. However, current models struggle to integrate ecophysiological processes. Mechanistic models are complex and have high parameter requirements.
Anne Baranger   +6 more
wiley   +1 more source

IMPLEMENTATION AND VALIDATION OF A HYDRO-MECHANICAL ELASTOPLASTIC CONSTITUTIVE MODEL FOR FULLY COUPLED ANALYSIS OF UNSATURATED SOILS [PDF]

open access: yes, 2017
Unsaturated soils are commonly encountered in natural soil deposits above the ground water table and in civil infrastructure construction as compacted soils. In earthquake prone areas, problems arise from dynamic loading of unsaturated soils.
ZHANG, BO
core  

Predicting Groundwater Hydrochemical Facies in Three Dimensions with Random Forest Classification, USA

open access: yesGroundwater, EarlyView.
Random forest classification predictions of groundwater hydrochemical facies (HCFs) can be used for multiple purposes, including the mapping of salinity and other groundwater characteristics. Shown on the figure are predictions of HCFs at the water table across the conterminous United States.
Paul E. Stackelberg   +5 more
wiley   +1 more source

Thermo-plasticity in unsaturated soils, a constitutive approach

open access: yes
Research interest in the thermo-mechanical behaviour of unsaturated soils is growing as a result of an increasing number of geomechanical problems involving both thermal and unsaturated effects.
Laloui, Lyesse, François, Bertrand
core  

Leaky Sewers Hydraulically Disconnect from Groundwater: A Proof‐of‐Concept

open access: yesGroundwater, EarlyView.
In this study, we newly demonstrate that leaky pipes can become hydraulically disconnected from the underlying groundwater—a phenomenon analogous to river–groundwater interactions. Through numerical modeling, we show that, as the groundwater table declines, the leakage flux from the pipe (in absolute terms) initially increases until a critical depth ...
Aaron Peche   +5 more
wiley   +1 more source

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