Results 21 to 30 of about 103,977 (217)

Compressive Sensing for Dynamic XRF Scanning

open access: yes, 2020
X-Ray Fluorescence (XRF) scanning is a widespread technique of high importance and impact since it provides chemical composition maps crucial for several scientific investigations.
Alberti, Roberto,   +7 more
core   +1 more source

Global Characteristics of X-Ray Flashes and X-Ray-Rich GRBs Observed by HETE-2 [PDF]

open access: yes, 2004
We describe and discuss the global properties of 45 gamma-ray bursts (GRBs) observed by HETE-2 during the first three years of its mission, focusing on the properties of X-Ray Flashes (XRFs) and X-ray-rich GRBs (XRRs).
Atteia, J-L.   +37 more
core   +3 more sources

Potensi Batugamping Untuk Bahan Baku Industri Semen Daerah Biluhu Timur Dan Sekitarnya

open access: yesJambura Geoscience Review, 2019
Limestone is a sedimentary rock composed by calcium carbonate derived from the rest of marine organisms and the main materials of cement so exploration and calculation of limestone resources need to be done.
Destira Handayani Eksan   +2 more
doaj   +1 more source

Supplemental macronutrients and microbial fermentation products improve the uptake and transport of foliar applied zinc in sunflower (Helianthus annuus L.) plants. Studies utilizing micro X-ray florescence. [PDF]

open access: yes, 2014
Enhancing nutrient uptake and the subsequent elemental transport from the sites of application to sites of utilization is of great importance to the science and practical field application of foliar fertilizers.
Cliff eRamsier   +9 more
core   +2 more sources

Archaeometric Studies on Neolithic Bullet-Shaped Cores from East Chia Sabz, Seymareh, Luristan [PDF]

open access: yesIranian Journal of Archaeological Studies, 2016
The East Chia Sabz site is located on the bank of the Seymareh River in the middle of the Zagros Mountain chain. The site is among the few examples of the acramic Neolithic sites of the 8th millennium B.C.
Nima Nezafati, Morteza Hessari
doaj   +1 more source

Mineralogical characterization of the traditional geopharmaceutical ithmid by XRF and XRD [PDF]

open access: yesTrends in Pharmaceutical Sciences, 2021
Geopharmaceuticals, specifically minerals were used to treat various diseases from antiquity. Ithmid or kohl stone is one of the most-applied geopharmaceuticals in the Middle East, Africa, and South Asia.
Marzieh Rashedinia   +2 more
doaj   +1 more source

INVESTIGATION OF HEAVY METAL CONCENTRATIONS IN THE GULF OF IZMIT (MARMARA SEA) ALTINOVA SHIPYARD REGION

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2022
In this study, heavy metal concentrations (Ca, Mg, Hg, As, Sb, Ag, Al, Co, Cr, Cu, Fe, Mn, Ni, Pb, V, Zn, Ti, Th, U, Mo, Cd) amounts were measured by examining marine sediment samples obtained from the coasts of the Izmit Bay Altınova shipyards region ...
Kübra BAYRAK   +3 more
doaj   +1 more source

Cosmological X-Ray Flashes from Off-Axis Jets [PDF]

open access: yes, 2003
The of the cosmological X-ray flashes detected by WFC/BeppoSAX is calculated theoretically in a simple jet model. The total emission energy from the jet is assumed to be constant.
Ioka, Kunihito   +2 more
core   +3 more sources

Determined the parameters effected on sensitivity and lower limit detection of XRF–WDS for different metals particles suspended in engine oil. [PDF]

open access: yesKirkuk Journal of Science, 2009
In this work Different weight of pure Copper,Nickel,Cobalt and Iron fine powders were blended carefully with engine Oil.X-ray fluorescence system was operated at 30KV and 17mA,the XRF intensities of Kα lines for all samples were measured at the peak and
Selma M. H. Al-Jawad
doaj   +1 more source

Tapada da Ajuda (Lisbon, Portugal) bronze age pin [PDF]

open access: yes, 2016
A pin made of a copper-based alloy, found at Tapada da Ajuda (Lisbon, Portugal), a site dated to the beginning of the Late Bronze Age, was analyzed by X-ray fluorescence (XRF) spectroscopy and examined by microscopy.
Cardoso, João Luís   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy