Results 101 to 110 of about 65,019 (260)

Eruption, Emplacement and Internal Architecture of Massive and Super‐Massive Inflated Submarine Basalt Lava Flows, Walvis Ridge Hotspot Track, IODP Expeditions 391/397T

open access: yesGeochemistry, Geophysics, Geosystems
Massive submarine basalt flows were sampled at five sites on the Tristan‐Gough‐Walvis hotspot track in the South Atlantic by International Oceanic Discovery Program Expeditions 391/397T, where the plume was interacting with a mid‐ocean ridge, a setting ...
John W. Shervais   +19 more
doaj   +1 more source

Preliminary characteristics of laminations in recent sediments from lakes Kamenduł and Perty in the Suwałki Landscape Park, northeastern Poland

open access: yesLimnological Review, 2016
Varved lake sediments are well known archives used for paleoenvironmental reconstructions. They provide continuous, high-resolution and calendar-year chronologies of past environmental changes.
Tylmann Wojciech   +3 more
doaj   +1 more source

A Study of Vitrified Nuclear Wasteforms by Molecular Dynamics, Electron Microscopy and Raman Spectroscopy [PDF]

open access: yes, 2015
In this study an attempt is made to create molecular dynamics (MD) models of borate glass, alkali borosilicate glasses, and UK vitreous High Level Radioactive Wasteforms.
Goodman, Barrie J., Magnox Ltd
core  

Evaluation of the Potential Carrier and Controlled Release of Antibiotics by Zinc, Nickel, and Cobalt Ferrite Nanoparticles Encapsulated with Silica and Functionalized with Moxifloxacin Hydrochloride

open access: yesParticle &Particle Systems Characterization, EarlyView.
The study reveals the inhibitory potential of encapsulated nanoparticles functionalized with moxifloxacin hydrochloride. ABSTRACT Bacterial resistance represents a significant global health threat associated with the development of microbial resistance genes.
Amanda S. Abreu   +6 more
wiley   +1 more source

XPS and AFM study of interaction of organosilane and sizing with e-glass fibre surface [PDF]

open access: yes, 2008
Organosilanes are often used in commercial sizings for glass fibres to provide wettability with the resin and promote strong interfacial adhesion to the matrix in a fibre reinforced polymer composite.
Frank R. Jones   +6 more
core   +2 more sources

Lithic analysis in African archaeology: Advances and key themes

open access: yesArchaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski   +2 more
wiley   +1 more source

Interpretation and implications of high-resolution hydroclimatic records of the past 7,000 years based on Gaho paleolake sediments in South Korea

open access: yesQuaternary Science Advances
In this study, we investigated the past hydroclimate and its controlling factors over East Asia by reconstructing hydroclimate variability during the middle-to-late Holocene using rainfall-driven sedimentary features in the Gaho paleolake, Hapcheon ...
Sujeong Park, Jaesoo Lim, Hyoun Soo Lim
doaj   +1 more source

Paleozoic Equatorial Records of Melting Ice Ages (PERMIA): calibrating the pace of paleotropical environmental and ecological change during Earth's previous icehouse [PDF]

open access: yesScientific Drilling
The upper Paleozoic Cutler Group of southern Utah, USA, is a key sedimentary archive for understanding the Earth-life effects of the planet's last pre-Quaternary icehouse–hothouse state change: the Carboniferous–Permian (C–P) transition, between 304 and ...
J. M. G. Stine   +25 more
doaj   +1 more source

Quality from Kent: Preliminary results from the analysis of fifth‐ to seventh‐century silver alloys

open access: yesArchaeometry, 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

Tin–Lead Sewn Tokens From 13th‐Century Gdańsk: Assessing Local and Non‐Local Production Through Archaeometric Analysis

open access: yesArchaeometry, EarlyView.
ABSTRACT This study presents the results of an interdisciplinary investigation of 98 tin–lead sewn tokens from 13th‐century Gdańsk, the largest assemblage of its kind in Central Europe. Combining archaeological context, typology, SEM‐EDS and lead isotope analysis, the research explores provenance, production and function.
Sławomir Wadyl   +4 more
wiley   +1 more source

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