Results 31 to 40 of about 29,331,473 (379)

CHARACTERISTICS OF THE UNIQUE Y-HREE-F-RICH PEGMATITE SYSTEM REVEALED BY ZIRCON GEOCHEMISTRY: A CASE STUDY FROM MT. PLOSKAYA AMAZONITE DEPOSIT, KOLA PENINSULA [PDF]

open access: yesМинералогия
An amazonite-quartz-albite pegmatite body of the Mt. Ploskaya intrudes a metavolcanic complex of the Keivy Terrane (Kola Peninsula) and is unique in its diversity and an assemblage of ore and accessory Y-Yb-Ta-Nb-Be-Pb-F mineralization.
D.R. Zozulya   +3 more
doaj   +1 more source

An unsupervised MVA method to compare specific regions in human breast tumor tissue samples using ToF-SIMS

open access: hybridIn Analysis, 2016
Imaging time-of-flight secondary ion mass spectrometry (ToF-SIMS) and principal component analysis (PCA) were used to investigate two sets of pre- and post-chemotherapy human breast tumor tissue sections to characterize lipids associated with tumor ...
Blake M. Bluestein   +6 more
openalex   +3 more sources

Temperature control on high-resolution SIMS oxygen isotopic compositions in Porites coral skeletons

open access: yesSolid Earth Sciences, 2021
Oxygen isotope composition (δ18O) in Porites coral skeletons at the micrometer scale has been proposed to be uninfluenced by temperature in previous studies.
Jieqiong Zou   +10 more
doaj   +1 more source

Method for assessing the spatiotemporal resolution of structured illumination microscopy (SIM)

open access: yesBiomedical Optics Express, 2021
A method is proposed for assessing the temporal resolution of structured illumination microscopy (SIM), by tracking the amplitude of different spatial frequency components over time, and comparing them to a temporally-oscillating ground-truth. This method is used to gain insight into the performance limits of SIM, along with alternative reconstruction ...
Boualam, A, Rowlands, C
openaire   +5 more sources

The research on CO oxidation over Ce-Mn oxides: The preparation method effects and oxidation mechanism.

open access: yesChemosphere, 2023
A series of CeO2-MnOx for highly efficient catalytical oxidation of carbon monoxide were prepared by citrate sol-gel (C), hydrothermal (H) and hydrothermal-citrate complexation (CH) methods.
Zhiping Ye   +5 more
semanticscholar   +1 more source

Boron concentration profiling by high angle annular dark field-scanning transmission electron microscopy in homoepitaxial delta-doped diamond layers [PDF]

open access: yes, 2013
To develop further diamond related devices, the concentration and spatial location of dopants should be controlled down to the nanometer scale. Scanning transmission electron microscopy using the high angle annular dark field mode is shown to be ...
Alegre Salguero, María de la Paz   +5 more
core   +4 more sources

Methods for evaluation of early bone healing at titanium implants [PDF]

open access: yes, 2007
Titanium has for a long time been the implant material of choice when in need for abilities as strength, biocompatibility and stability. Although numbers of studies have been made, little is known about the early events in implant healing.
Hederstierna, Karin
core   +1 more source

Reducing the matrix effect in mass spectral imaging of biofilms using flow-cell culture

open access: yesFrontiers in Chemistry, 2023
The interactions between soil microorganisms and soil minerals play a crucial role in the formation and evolution of minerals and the stability of soil aggregates.
Yuchen Zhang   +6 more
doaj   +1 more source

The self-excitation damping ratio: A chatter criterion for time-domain milling simulations [PDF]

open access: yes, 2004
Regenerative chatter is known to be a key factor that limits the productivity of high speed machining. Consequently, a great deal of research has focused on developing predictive models of milling dynamics, to aid engineers involved in both research and ...
Altintas   +15 more
core   +1 more source

Novel Applications of FIB-SEM-Based ToF-SIMS in Atom Probe Tomography Workflows

open access: yesMicroscopy and Microanalysis, 2020
Atom probe tomography (APT) is used to quantify atomic-scale elemental and isotopic compositional variations within a very small volume of material (typically
W. Rickard   +8 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy