Target atomic number dependence of projectile excitation cross sections of He-like iron ionsExperimental/ atom-ion collisionsironpositive ions/ inner shell excitationionisation cross sectionexcitation cross sectionstarget atomsdistortion approximationFe 24+ ions / A3450H Electronic excitation and ionization (...
Iron (Fe, atomic number 26) is a redox-active transition metal element found in living systems as Fe2+ or Fe3+ ions. It is rarely found free in biology, but is bound to proteins such as ferritin or haem, to form metalloproteins such as haemoglobin, which is responsible for the transpor...
Iron is a chemical element; it has symbol Fe (from Latin ferrum 'iron') and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, just ahead of oxygen (32.1% and 30.1%, ...
Aheme(HEM)isamulti-atom,non-proteinaceousorganicstructurecapableof positioning aniron(FE)ioninitscenter. 亚铁血红素(HEM)是一个多原子、非蛋白质的有机结构,能够将一个铁(FE)离子置于其中心。 www.ibm.com 3. Methods:Zinc(Zn),calcium(Ca) andiron(Fe) of804childrenwere determinedbyatomicabsorptionspectrop...
Purpose: In space, astronauts are exposed to mixed radiation fields consisting of energetic protons and high atomic number, high energy (HZE) particles at low dose rates. Therefore, it is critical to understand effects of combinations of low doses of different radiation types at the cellular ...
To determine the impact of treatment on the elemental composition of the enamel surface, lamellae oriented normal to the external enamel surface (EES) of rat mandibular first molars (M1) were lifted out using a conventional focused ion beam (FIB) technique (Supplementary Fig.15). Line profiles ...
Among mononuclear, non-heme, iron sites in proteins that have been studied by NMR, the case of Fe superoxide dismutase (FeSOD) shows how the electron relaxation time of the metal ion is finely tuned by its coordination number. Indeed, iron(III) in the active site of FeSOD is coordinated...
such an achievement would be completely useless when the coupling would be done with LiFePO4-based cathodes for example. In fact since in full Li-ion cells, cathodes constitute the Li+reservoir (this is the reason why new portable gadgets have to be charged during the very first use), the ...
. Compared with Mo (Z = 42) atoms, Fe (Z = 26) has∼40% smaller atomic number. As the magnitude of the forward-scattered electron intensity is dependent on the atomic number, it is expected that Fe atoms produce lower relative intensity, which is clearly visible for the ...
X-ray absorption near-edge structure (XANES) and Fourier transforms (FTs) of EXAFS spectra provide insights into the state of Fe even at low fractions as aberration-corrected transmission electron microscopy (Fig.S8) cannot distinguish Fe and Zn atoms due to approximate atomic number, and XPS is...