Results 121 to 130 of about 32,735 (279)

A new, ~4500‐year varve record and high‐resolution tephrochronology from lake Hämälänlampi, eastern Finland, provides age constraints for the Furnas C and the Glen Garry/Askja A‐2000 eruptions

Journal of Quaternary Science, EarlyView.
ABSTRACT The northern European distal cryptotephra framework is constantly developing both in terms of identification of new tephra horizons and improved age constraints for the already well‐established tephra marker horizons. However, many prehistoric tephra layers have only been dated by the radiocarbon method, with its inherent problems.
Maarit Kalliokoski, Veera Erola, Saija Saarni   +2 more
wiley   +1 more source

Quantification of 10B and 11B in Biological Samples in Translational Science and Clinical Applications for Boron Neutron Capture Therapy (BNCT)

Medicinal Research Reviews, EarlyView.
ABSTRACT Boron neutron capture therapy (BNCT) is a targeted radiotherapy that exploits the selective accumulation of the 10B isotope within tumors, followed by irradiation with low‐energy neutrons to induce high linear energy transfer particles with short path lengths, resulting in localized tumor cell destruction while sparing surrounding healthy ...
Christoph Selg, Wolfgang A. G. Sauerwein, Evamarie Hey‐Hawkins   +2 more
wiley   +1 more source

Interference of the Spectral Line Mζ in the M Energy Level Series of Ce on the F Element Kα Peak in Monazite Samples

Yankuang ceshi
Quantitative analysis of the ultra-light element fluorine (F) has always been one of the difficulties in electron probe microanalysis (EPMA). High-resolution qualitative analysis and proper subtraction of spectral interferences from major elements are ...
Suwen QIU, Jinsheng HU, Guangyu SHI, Can RAO, Xiaofeng ZHANG, Wentan XU   +5 more
doaj   +1 more source

Ti3C2Tx (MXene)‐Polystyrene Based Passivation for Perovskite Solar Cells With Enhanced Stability

Small, EarlyView.
A new class of surface passivation strategy by integrating conductive 2D Ti3C2Tx and hydrophobic polystyrene for stable perovskite solar cells is introduced in this work. Polystyrene‐MXene passivated devices retained more than 93% of their initial efficiencies after storing in ambient air with high humidity conditions for 30 days.
Selengesuren Suragtkhuu, Purevlkham Myagmarsereejid, Isaac Etchells, Paul E. Shaw, Yu Lin Zhong, Munkhbayar Batmunkh   +5 more
wiley   +1 more source

ZONATION OF PHLOGOPITE OF CARBONATITE-PEGMATITES OF THE BULDYM DEPOSIT OF THE VISHNEVYE MOUNTAINS (SOUTH URALS) [PDF]

Минералогия, 2017
In a plate 19 cm in size from the columnar crystal of phlogopite Buldym deposit in the Southern Urals, we studied the composition of alternating greenish-brown, yellowish-brown and darker brown areas by electron-probe microanalysis.
V.I. Popova, V.A. Kotlyarov, I.L. Nedosekova, V.A. Popov   +3 more
doaj  

Spatially Profiling Trace Cytokine Signatures From Microscopically Derived Skin Samples to Probe Skin Disease Inflammation

Small Methods, EarlyView.
Inflammatory skin diseases are driven by immune dysregulation and cytokine imbalance. A challenge persists in profiling cytokines in microscopically derived biopsy skin samples due to low protein content. This study introduces a digital SERS immunoassay to simultaneously detect IL‐17A, IL‐22, IL‐23, and TNF at trace concentrations as low as 104 aM. The
Aditya Krishnakumar, Zhen Zhang, Courtney Vedelago, Timothy J. Liu, Yung‐Ching Kao, H. Peter Soyer, Mitchell S. Stark, Snehlata Kumari, Matt Trau, Alain Wuethrich   +9 more
wiley   +1 more source

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

Microstructure, wear and corrosion behaviors of TC21 titanium alloy by solid powder-packing boriding and aluminizing

Journal of Materials Research and Technology
In this work, TC21 titanium alloy was treated using solid powder-packing infiltration method with single boriding, single aluminizing and first-stage boriding and second-stage aluminizing (B–Al).
Yuwei Guo, Ziqiang Wang, Na Li, Shankai Yang, Yuyu Wu, Yonghua Duan, Ancang Yang, Lishi Ma, Shanju Zheng, Yunping Li   +9 more
doaj   +1 more source

Alteration of X‐Ray Emission Band Spectrum Under Bragg Diffraction

X-Ray Spectrometry, EarlyView.
ABSTRACT We use a Zr/Si multilayer presenting a gradient of period to probe the shape of the Si L2,3 emission band (maximum around 92 eV) in and out of Bragg conditions. The sample was prepared by magnetron sputtering and its reflectance measured in the photon energy range of interest with synchrotron radiation.
Philippe Jonnard, Jean‐Michel André, Karine Le Guen, Nawel Temmar, Anthony Boucly, Nicolas Rividi, Wanqiu Bai, Angelo Giglia, Nicola Mahne, Sheng Guo, Jingtao Zhu   +10 more
wiley   +1 more source

The element enrichment behavior during the aging treatment of PH13–8Mo steel and its influence on the evolution of microstructures and mechanical properties

Journal of Materials Research and Technology
The element enrichment behavior during the aging treatment of PH13–8Mo steel and its influence on the evolution of microstructure and mechanical properties were systematically investigated via scanning electron microscopy (SEM), electron backscatter ...
Haitao Xu, Chen Sun, Qianwei Guo, Kaiyan Song, Hanghang Liu, Yinuo Du, Leitao Wang, Xinyu Ru, Ziwen Yan, Yanfei Cao, Hongwei Liu, Paixian Fu   +11 more
doaj   +1 more source