Results 91 to 100 of about 1,940 (232)

Farming in the shadows of Rome: A multi‐proxy palaeoenvironmental record from Loch Clunie—Perthshire

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Roman impacts on local society is a subject of international significance. Loch Clunie, Perthshire, lies only 5.4 km from Inchtuthil, the only Roman legionary fortress in Scotland, and contains two crannogs and a probable lakeside hillfort. Despite this proximity and the likelihood of local–Roman interaction, these sites remain unexcavated ...
Samantha E. Jones   +6 more
wiley   +1 more source

LA-MC-ICP-MS dating of zircon from chromitite of the Archean Bangur Gabbro Complex, Orissa, India – Ambiguities and constraints

open access: yesGeologica Acta, 2015
The Mesoarchean chromitites in the Singhbhum craton provide the main source of chromium in India. We report here results of dating zircon grains that were found in the chromitite of ultramafic rocks belonging to the southern part of the Archean Baula ...
P. V. SUNDER-RAJU, E. HANSKI, Y. LAHAYE
doaj  

Progress and Application of Mass Spectrometry Techniques for Single Particle Analysis in Nuclear Safeguard

open access: yesZhipu Xuebao
The nuclear Non-proliferation Treaty (NPT) is one of the cornerstones regulating the international order. To make sure that all the member states fulfill their obligation under the treaty, the International Atomic Energy Agency (IAEA) has constructed a ...
Li-ping WANG   +5 more
doaj   +1 more source

Suitability of slightly saline irrigation for alleviating drought stress in taro and yam in Tonga: Implications for climate‐resilient Pacific cropping systems

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
There is an increasing risk of drought and salinisation of soil and groundwater globally, including in Pacific Island countries such as Tonga. Irrigating crops with slightly saline water, such as that produced by emerging desalination technologies, could help to alleviate droughts.
Harry Myrans   +9 more
wiley   +1 more source

Constraining Geogenic Sources of Boron Impacting Groundwater and Wells in the Newark Basin, USA

open access: yesHydrology
The Newark Basin comprises Late Triassic and Early Jurassic fluvio-lacustrine rocks (Stockton, Lockatong, Passaic, Feltville, Towaco, and Boonton Formations) and Early Jurassic diabase intrusions and basalt lava flows.
Larbi Rddad, Steven Spayd
doaj   +1 more source

Sonified Signals From a Compact FT‐ICR Instrument: A Feasibility Study. I—Data Mapping to an Equal‐Tempered Chromatic Scale

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Ions trapped within a Penning cell (ICR) travel periodic orbits whose frequencies are dependent on their mass‐to‐charge ratio and the value of the magnetic field passing through the trap. Fourier transformation (FT‐ICR) decomposes the signal induced in the detection circuit by the rotation of the ions in the cell after the ...
Patrick Arpino, Michel Heninger
wiley   +1 more source

A comprehensive monitoring of physico‐chemical properties of water by magnetization and impedance spectroscopy

open access: yesRiver, EarlyView.
Abstract This study describes the effect of electromagnetic field (EMF) treatment on the chemical and electrical properties of tap water. It also contributes to a better understanding of the influence of this technique on the physicochemical properties of water exposed to different treatment times by an EMF generated by the Aqua 4D.
Abderrahmane Elmelouky   +6 more
wiley   +1 more source

Copper‐Zinc Bimetallic Two‐Dimensional Conjugated Coordination Polymers for Highly‐Selective Electrochemical CO2 Reduction to Ethanol

open access: yesSmall, EarlyView.
Two‐dimensional conjugated coordination polymers featuring spatially separated Cu/Zn–S4 bi‐active sites enable the selective electrochemical conversion of CO2 to ethanol via stabilized C2 intermediates, achieving a Faradaic efficiency of 92.3% at a current density exceeding 120 mA cm−2 and an energy cost of 56.6 GJ per ton.
Rashid Iqbal   +9 more
wiley   +1 more source

Stabilization of Cu Species in UiO‐66 Metal–Organic Framework for CO2‐to‐Methanol: Insights From Operando X‐ray and Electron Microscopy Studies

open access: yesSmall, EarlyView.
This study reveals how a zirconium‐based metal–organic framework (UiO‐66) stabilizes copper species during CO2 hydrogenation to methanol. Operando X‐ray spectroscopy, electron microscopy, and theory show that zinc promotes highly dispersed copper and suppresses particle growth, while the framework dynamically responds to reaction intermediates.
Anna Liutkova   +11 more
wiley   +1 more source

A Discussion on Genetic Mechanism of the Kuerqis Iron Deposit in Fuyun County, Xinjiang

open access: yesYankuang ceshi, 2013
The large iron deposits in the southern margin of Altay had been studied systematically, but researches on some small Fe-rich type such as Kuerqis iron deposit are still obviously insufficient.
ZHANG Chao, LIU Fen, YANG Fu-quan
doaj  

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