Results 1 to 10 of about 35,141 (274)

A Preliminary Study to Determine the Hydrogen and Oxygen Isotopic Compositions of Natural and Bottled Water using High Sensitivity Isotope Ratio Mass Spectrometry [PDF]

Geo Data, 2021
In this study, we introduce the stable isotopic results of water using a recently installed high sensitivity isotope ratio mass spectrometry (HS-IRMS) system at the Korea Institute of Geoscience and Mineral Resources (KIGAM).
Hyeongseok Song, Hui Je Jo, Dongwoo Yang
doaj   +1 more source

Induced roll magnetic separator applied for high grade ilmenite separation from mining tailing

Jurnal Ilmiah SINERGI, 2023
This article aimed to separate ilmenite (FeTiO3) mineral from tin tailing applying a single splitter IRMS (Induced Roll Magnetic Separator). Ilmenite mineral is the substantial main source for TiO2. This work used air table middling for feeding.
Wiwik Dahani, Rita Sundari, Subandrio Somali, Irfan Marwanza, Andriyani Andriyani, Djoko Hartanto, Khuzaimah Arifin, Ratna Ediati   +7 more
doaj   +1 more source

Efficient Adoption and Assessment of Multiple Process Improvement Reference Models [PDF]

e-Informatica Software Engineering Journal, 2013
A variety of reference models such as CMMI, COBIT or ITIL support IT organizations to improve their processes. These process improvement reference models (IRMs) cover different domains such as IT development, IT Services or IT Governance but also share ...
Simona Jeners, Horst Lichter, Carlos Gomez Rosenkranz   +2 more
doaj   +1 more source

Effect of Sample Signal Intensity on δ15N and δ34S Measurement by EA-IRMS System

Journal of Isotopes, 2023
Carbon-nitrogen ratio (C/N) and carbon-sulphur ratio (C/S) of unknown samples can vary greatly in the natural environment. There are also distinct differences in the ionization efficiencies of N and S elements.
DU Yiyuan;YANG Bin;MENG Xianjing;WEN Rihong;SONG Liang;ZHANG Aiping;ZHOU Xiao
doaj   +1 more source

To shred roughly or to grind? On the methods of sample preparation of the keratinous material for stable hydrogen isotope analysis

Трансформация экосистем, 2020
Hydrogen stable isotope measurement in keratin samples (hair, feathers, etc.) is one of the very popular, but rather complex tasks of isotope ratio mass spectrometry.
Maria A. Belova, Alyona A. Zudilova, Dmitry S. Kopylov   +2 more
doaj   +1 more source

Arthrofibrosis risk factors after anterior cruciate ligament reconstruction

Frontiers in Sports and Active Living, 2023
IntroductionKnee arthrofibrosis is a disabling complication after anterior cruciate ligament reconstruction (ACLr). Different risk factors have been studied but are still controversial because of a diagnosis made only during reoperations for the ...
Marc Dauty, Marc Dauty, Marc Dauty, Marc Dauty, Pierre Menu, Pierre Menu, Pierre Menu, Pierre Menu, Jérôme Grondin, Jérôme Grondin, Jérôme Grondin, Vincent Crenn, Pauline Daley, Pauline Daley, Pauline Daley, Alban Fouasson-Chailloux, Alban Fouasson-Chailloux, Alban Fouasson-Chailloux, Alban Fouasson-Chailloux   +18 more
doaj   +1 more source

Development and validation of a fast gas chromatography combustion isotope ratio mass spectrometry method for the detection of epiandrosterone sulfate in urine [PDF]

, 2020
In doping control, to confirm the exogenous origin of exogenously administered anabolic androgenic steroids (AAS), a gas chromatography combustion isotope ratio mass spectrometry (GC-C-IRMS) analysis is performed.
De Wilde, Laurie, Polet, Michaël, Van Eenoo, Peter, Van Renterghem, Pieter   +3 more
core   +1 more source

The CIt protocol: A blueprint to potentiate the immunogenicity of immunoproteasome-reprogrammed mesenchymal stromal cells

iScience, 2022
Summary: Immunoproteasome-reprogrammed mesenchymal stromal cells (IRMs) can surpass dendritic cells at eliciting tumor-specific immunity. However, the current IRM vaccination regimen remains clinically unsuitable due to the relatively high dose of IRMs ...
Jean-Pierre Bikorimana, Nehme El-Hachem, Jamilah Abusarah, Nicoletta Eliopoulos, Sebastien Talbot, Riam Shammaa, Moutih Rafei   +6 more
doaj   +1 more source

Method for derivatization and isotopic analysis of the insensitive munition compound 3-nitro-1,2,4-triazol-5-one (NTO)

Journal of Hazardous Materials Letters, 2021
This paper describes an offline low-temperature derivatization method combined with gas chromatography-isotope ratio mass spectrometry (GC-IRMS) to enable compound-specific isotope analysis (CSIA) of C and N in the explosive compound 3-nitro-1,2,4 ...
Chunlei Wang, Linnea J. Heraty, Haibo Li, Mark E. Fuller, Paul B. Hatzinger, Neil C. Sturchio   +5 more
doaj   +1 more source

Analysis of Compound-specific Carbon Isotopic Composition of Polycyclic Aromatic Hydrocarbons by PTV-GC-IRMS

Yankuang ceshi, 2022
BACKGROUND The carbon isotope ratio of PAHs is stable in the migration and transformation, which is an important traceability index and can be analyzed by gas chromatography-isotope ratio mass spectrometry (GC-IRMS).
XIE Manman, LIU Meimei, LING Yuan, SUN Qing   +3 more
doaj   +1 more source