-
1661
Determination of Heavy Metal Pollution in the Dankran River in the Bekwai Municipality of Ghana
Published 2022-01-01“…The samples were taken from three locations, Konyaw, Jumako, and Anwiankwanta, and subjected to standard laboratory tests using Atomic Absorption Spectroscopy (AAS) and Inductively Coupled Plasma Mass Spectroscopy (ICP-MS). …”
Get full text
Article -
1662
Electron Number Density and Coherence Length of Boson-Fermion Pair in HTSC
Published 2022-01-01“…While most hole doping agents are atoms lighter than copper, many of the electron doping agents are materials heavier than copper. …”
Get full text
Article -
1663
Pearson's Hard-Soft Acid-Base Principle as a Means of Interpreting the Reactivity of Carbon Materials
Published 2006-06-01“…In the current studies we are focusing on the utility of the theory of hard and soft acids and bases (HSAB), as proposed by Pearson, for the description of the reactivity of different types of two-radical graphene sheets where two neighbouring carbon atoms are unsaturated in the zigzag position. The closed- and open-shell systems were taken into account. …”
Get full text
Article -
1664
Impact of Tsunami on the Heavy Metal Accumulation in Water, Sediments and Fish at Poompuhar Coast, Southeast Coast of India
Published 2008-01-01“…Investigations on the accumulation of heavy metals (Zn, Cu, Fe, Mn, Co, Pb, Cd and Ni) in water, sediments and fish (Mugil cephalus) using Atomic Absorption Spectrophotometer at Poompuhar coast, lying along the southeast coast of India was studied before and after tsunami. …”
Get full text
Article -
1665
Chemisorption and the Distribution of Acid Y Zeolite Cumene Cracking Products
Published 2000-06-01“…The infringement of the stoichiometry and the considerable material imbalance observed may be attributed to the chemisorption of both cumene and the final conversion products on Lewis acid sites, i.e. coordinatively unsaturated aluminium atoms and zeolite cations, present on the catalyst surface. …”
Get full text
Article -
1666
Geometric Lattice Structure of Covering and Its Application to Attribute Reduction through Matroids
Published 2014-01-01“…First, a geometric lattice structure of a covering is constructed through transversal matroids. Then its atoms are studied and used to describe the lattice. …”
Get full text
Article -
1667
Characterizing absolutely irreducible integer-valued polynomials over discrete valuation domains
Published 2023“…Rings of integer-valued polynomials are known to be atomic, non-factorial rings furnishing examples for both irreducible elements for which all powers factor uniquely (absolutely irreducibles) and irreducible elements where some power has a factorization different from the trivial one. …”
Get full text
Article -
1668
Incommensurable matter-wave jets in quasi-1D geometry
Published 2025-02-01“…Abstract Bose-Einstein condensates subjected to modulation of the interaction between atoms exhibit the emergence of density waves and matter-wave jets with a velocity proportional to the square root of the modulation frequency. …”
Get full text
Article -
1669
Shock wave attenuation in a high-entropy alloy with pre-existing dislocation network
Published 2025-01-01“…However, the in-depth understanding of dynamic deformation mechanisms remains limited due to technological constraints in real-time detection of microstructural evolution at the atomic level. In present work, non-equilibrium molecular dynamics (NEMD) simulations were performed to study the shock response of FeCoNiCrCu HEAs with pre-existing dislocation network. …”
Get full text
Article -
1670
A Comprehensive Study on Gamma Rays and Fast Neutron Sensing Properties of GAGOC and CMO Scintillators for Shielding Radiation Applications
Published 2017-01-01“…The WinXCom program has been used to calculate the mass attenuation coefficients (μm), effective atomic numbers (Zeff), effective electron densities (Nel), half-value layer (HVL), and mean free path (MFP) in the energy range 1 keV–100 GeV for Gd3Al2Ga3O12Ce (GAGOC) and CaMoO4 (CMO) scintillator materials. …”
Get full text
Article -
1671
Prokaryotic cellulase gene clusters derived from 2,305 metagenomes
Published 2025-02-01“…However, it is a difficult task for any organism to get carbon atoms from the cellulose as it has a highly complex structure. …”
Get full text
Article -
1672
A Quantum Sensor for Neutrino Mass Measurements
Published 2012-01-01“…The device will allow measuring atomic masses, and therefore Q-values from decays with unprecedented accuracy and sensitivity, using fluorescence photons from a laser-cooled ion instead of electronic detection. …”
Get full text
Article -
1673
Mechanisms of RCD-1 pore formation and membrane bending
Published 2025-01-01“…Here, we demonstrate that RCD-1 binds acidic lipid membranes, forms pores, and induces membrane bending. Using atomic force microscopy (AFM) and AlphaFold, we show that RCD-1-1 and RCD-1-2 form heterodimers that further self-assemble into ~14.5 nm-wide transmembrane pores (~10 heterodimers). …”
Get full text
Article -
1674
Argon release, crystallization, morphological and optical changes of ion-beam sputtered Ta2O5 thin films during thermal treatments
Published 2025-01-01“…X-Ray Diffraction (XRD) measurements indicate that in the same range of temperature the crystallization of tantala takes place. Atomic Force Microscopy (AFM) experiments detect a reduction of the surface roughness in the crystalline phase; domains with typical dimensions of the order of few microns appear in the crystal. …”
Get full text
Article -
1675
Disruption of biological membranes by hydrophobic molecules: a way to inhibit bacterial growth
Published 2025-01-01“…Finally, we demonstrate, using atomic force and fluorescence microscopy, that the drugs, especially propofol, produce a visible disruption in real bacterial membranes, explaining the observed inhibition. …”
Get full text
Article -
1676
Macroscopic perspective on phase transition behavior of natural single-crystal graphite under different pressure environments
Published 2025-01-01“…Here, we report on the pressure-induced phase transition behavior of natural single-crystal graphite under three distinct pressure-transmitting media from a macroscopic perspective using in situ two-dimensional Raman spectroscopy, scanning electron microscopy, and atomic force microscopy. The surface evolution process of graphite before and after the phase transition is captured, revealing that pressure-induced surface textures can impede the continuity of the phase transition process across the entire single crystal. …”
Get full text
Article -
1677
Matematical modeling of the process of enlarging the austenitic grain during high-temperature heating of alloy structural steel
Published 2019-10-01“…A phenomenological model describing the mechanism of formation and growth of austenitic grains in steels under heating at different speeds is developed.It is concluded that the slow heating of steels in the interval of phase a®g transformation contributes to the formation of a complex of small austenite grains separated by high angle boundaries with adsorbed on them by impurity atoms, which ensures higher resistance grain structure to coalescence and reduce the rate of migration of the boundaries during prolonged hightemperature austenization.…”
Get full text
Article -
1678
Chemical reactivity of alliin and its molecular interactions with the M proteasepro of SARS-CoV-2
Published 2024-01-01“…For electrophilic attacks, the more reactive sites are on the carbon atoms of the prop-2-ene moiety. The more active sites for nucleophilic attacks are located on the thioether group. …”
Get full text
Article -
1679
Disorder-induced enhancement of lithium-ion transport in solid-state electrolytes
Published 2025-01-01“…We further establish bridges between dynamical characteristics, local structural features, and atomic rearrangements by applying a machine learning-based structure fingerprint termed “softness”. …”
Get full text
Article -
1680
A Study on the Effect of the Boron Potential on the Mechanical Properties of the Borided Layers Obtained by Boron Diffusion at the Surface of AISI 316L Steel
Published 2014-01-01“…The boron potential was established by means of the available atoms of boron contained in a control volume inside a cylinder. …”
Get full text
Article