Results 61 to 70 of about 2,481,910 (343)

Opium trade and use during the Late Bronze Age: Organic residue analysis of ceramic vessels from the burials of Tel Yehud, Israel

Archaeometry, EarlyView., 2022
Abstract Organic residue analysis was conducted on various vessels from burials at Tel Yehud, Israel. The analyses led to new reliable evidence for the presence of opioid alkaloids and their decomposition products. This research revitalizes a decades‐old discussion on the presence and function of the opium trade across a cultural region of utmost ...
Vanessa Linares, Eriola Jakoel, Ron Be’eri, Oded Lipschits, Ronny Neumann, Yuval Gadot   +5 more
wiley   +1 more source

Pile-Soil Interaction in Unsaturated Soil Conditions [PDF]

, 2014
The degree of saturation has been proven to significantly affect geotechnical engineering designs for foundations. The changes in water content will influence the way the soil behaves, including its strength and stiffness parameters.
Hamilton, Megan
core   +2 more sources

Role of the pore-size distribution function on water flow in unsaturated soil

Journal of Zhejiang University: Science A, 2019
The hydraulic properties of soil (i.e. soil-water characteristic curve (SWCC) and coefficient of permeability) govern the moisture flow in it. Previous research has indicated that the hydraulic properties of soil are dependent on its pore-size ...
Q. Zhai, Q. Zhai, H. Rahardjo, A. Satyanaga, Priono, G. Dai   +5 more
semanticscholar   +1 more source

High Density Polyethylene/Ground Tire Rubber Composites Compatibilized by Dicumyl Peroxide

Journal of Applied Polymer Science, EarlyView.
ABSTRACT In this study, the thermal behavior of dicumyl peroxide (DCP) was first evaluated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), which confirmed a peak decomposition temperature around 172°C, highlighting its incompatibility with standard melt‐mixing techniques for most polyolefins. To overcome this limitation,
Hibal Ahmad, Denis Rodrigue
wiley   +1 more source

Triple-Shear Unified Solution for Bearing Capacity of Unsaturated Soft Soil Foundations with Hard Crust

Geofluids, 2022
The bearing capacity of unsaturated soft soil foundations is affected by natural or artificial hard crust, due to the stress diffusion and closure effect.
Xueye Cao, Junhai Zhao, Jiaqiang Ji, Jielong Sun, Mingming Qiu   +4 more
doaj   +1 more source

Estimation of the hydraulic parameters of unsaturated samples by electrical resistivity tomography [PDF]

, 2012
In situ and laboratory experiments have shown that electrical resistivity tomography (ERT) is an effective tool to image transient phenomena in soils. However, its application in quantifying soil hydraulic parameters has been limited.
Bear J., Brooks R. H., Comina C., Comina C., Corey A. T., Dalla E., Deiana R., G. DELLA VECCHIA, G. MUSSO, Hadamard J., Hillel A. C., Hopmans J. W., Lee J. Y., Menke W., Michot D., Mitchell J. K., R.M. COSENTINI, Reynolds J. M., Romero E., S. FOTI, Santamarina J. C., Singha K., Tikhonov A. N., Vanderborght J.   +23 more
core   +1 more source

Natural Antioxidants as Thermal Stabilizers in Post‐Consumer Polypropylene

Journal of Applied Polymer Science, EarlyView.
A synergistic antioxidant system combining two natural antioxidants, quercetin and tocopherol, enhances the thermo‐oxidative stability of recycled polypropylene. The approach addresses key barriers to the utilization of recycled polymers, offering a sustainable pathway to improve material performance and supporting the broader adoption of recycled ...
Jeevan Tom Joseph, Muhammad Irfan Qadeer, Peter Leisner, Mikael Skrifvars   +3 more
wiley   +1 more source

Study on vibration isolation performance of wave impeding block in unsaturated soil foundation under an underground dynamic load

Journal of Low Frequency Noise, Vibration and Active Control, 2023
Based on single-phase medium theory and unsaturated porous medium theory, the vibration isolation effect of setting a single-phase solid wave impeding block (WIB) in the unsaturated soil foundation under an underground dynamic load is investigated. Using
Meng Zhang, Qiang Ma
doaj   +1 more source

Examining the Effect of Pore Size Distribution and Shape on Flow through Unsaturated Peat using Computer Tomography [PDF]

, 2009
The hydraulic conductivity of unsaturated peat soil is controlled by the air-filled porosity, pore size and geometric distribution as well as other physical properties of peat materials. This study investigates how the size and shape of pores affects the
Elliot, T.R., Elrick, David, Heck, Richard J., Price, Jonathan S., Quinton, William L., Rezanezhad, Fereidoun   +5 more
core   +2 more sources

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

Archaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini, Maria Ilaria Pannaccione Apa, Robert Gutiérrez Cachay, Marco Fernández Manayalle, Carlos Eduardo Wester La Torre, Guido Ventura   +5 more
wiley   +1 more source