Microscopic calculations

In this work, we examine cross sections for (α, γ) reactions on p-nuclei, including 90Zr, 121Sb, 151Eu, and 162Er at astrophysically relevant energies. By using our recently developed α optical model potential (α-OMP), the (α, γ) cross sections were calculated within six models of radiative strength functions (RSF) which consisted of the microscopic HFB-QRPA model based on the BSk14 Skyrme force, the HF-BCS theory using Skyrme parameters, the EGLO model, SMLO model, the empirical SMLO (SMLOg) and global semi-microscopic (D1M-QRPAg) models.

7p viambani 18-06-2024 1 1   Download

Part 1 book "Advances in chemical engineering" includes content: Application of chebyshev polynomials to calculate density and fugacity using saft equation of state to predict asphaltene precipitation conditions; based on common inverted microscope to measure UV vis spectra of single oil gas inclusions and colour analysis; challenging evaluation of the hybrid technique of chemical engineering - proton NMR technique for food engineering; modelling approach for redesign of technical processes; application potential of food protein modification,... and other contents.

334p muasambanhan09 16-03-2024 3 1   Download

Part 1 book "Laboratory procedures for veterinary technicians" includes content: Safety concerns and OSHA standards, general laboratory equipment, the microscope, the metric system and lab calculations, quality control and record keeping, principles of blood coagulation, sample collection and handling, platelet evaluation, coagulation testing, disorders of hemostasis,.... and other contents.

176p muasambanhan05 22-01-2024 6 2   Download

The W isotopic compositions have been investigated within the classical approach to the sprocess nucleosynthesis. The Maxwellian averaged neutron capture cross-sections (MACS) adopted in the calculation are obtained from the TALYS-1.9 code with four nuclear level density models: the constant temperature plus Fermi gas, the back-shifted Fermi gas, the generalised superfluid, and the microscopic method of Goriely.

7p vispiderman 15-06-2023 3 3   Download

The density-dependent interaction CDM3Y6 was used to generate the optical potentials. Enhancements of cross-section at large angle in 104 and 110 MeV data were assumed to be due to contributions of the 8Be transfer process.

6p visnape 30-01-2023 3 2   Download

The moment method in the statistical dynamics is used to study the thermodynamic properties of metals taking into account the anharmonicity effects of the lattice vibrations. The effective pair potentials work well for the calculations of metals. For obtaining better agreement of the thermodynamic quantities of metals like Nb, the many body potentials derived from the microscopic electronic theory are used. The theoretical calculations of the thermodynamic properties are in good agreement with the corresponding experimental results.

9p runordie5 04-07-2022 9 3   Download

For the first time, a realistic microscopic calculation for low-energy neutron-nucleus elastic scattering off open-shell nuclei is carried out within the framework of particle-vibration coupling (PVC). In this study, the pairing correlations of the ground state are taken into account. The dependence of the angular distributions on the pairing gaps is discussed.

5p nguaconbaynhay9 03-12-2020 13 0   Download

In our previous work on microscopic bubbles in AMAs, we determined the diffusion coefficients of tracer atoms via microscopic bubbles in Fe80B20 AMAs. Generally, our results were consistent with experimental data. However, the dependence of the microscopic bubbles and the diffusion coefficients on atom concentration in the AMAs has not yet been determined. Therefore, the goal of this paper is to investigate the dependence of microscopic bubbles and the diffusion coefficient of tracer atoms on B concentration in Co-B AMAs.

7p tamynhan8 04-11-2020 13 2   Download

The deterministic simple least square (LS) approach is employed in the covariance analysis of the total neutron cross section (n,tot) calculated by a microscopic optical potential, CTOM, which is based on a fundamental theory Dirac Brueckner Hartree Fock.

6p christabelhuynh 29-05-2020 3 0   Download

The present study was conducted to identify sexually dimorphic regions in the chicken hypothalamus. Brain samples of apparently healthy chicken of either sex of 6-7 weeks was processed and consecutively stained by Hematoxylin and Eosin, Cresyl Violet and Toluidine Blue. The length and breadth of selected nuclei (preoptic nucleus, periventricular preoptic nucleus, medial suprachiasmatic nucleus and lateral hypothalamic nucleus) was calculated by Leica Qwin Images Analyser software in Leica DM 2000 Microscope.

7p nguaconbaynhay5 16-05-2020 10 0   Download

The research on hydrophobic and superhydrophobic surface has been extensively studied by many groups around the world. The parameter determined the wetting ability of a surface is value of water contact angle. Measuring contact angle become extremely important for both academic and industrial field. In this study, we propose a simple and affordable methodology to calculate contact angle. This approach used portable microscope of Koolertron for droplet images capturing and free software of ImageJ for contact angle fitting and calculation.

8p bangchungthep4 09-03-2020 24 0   Download

This study aimed to determine the effect of different ozone concentrations applied with different exposure times on the chemical composition and the surface morphology of enamel. Twenty human mandibular molars were divided into four groups according to ozone concentration and exposure times. Group A received 90 lg of ozone/ml oxygen for 1 min, group B received 90 lg of ozone/ml oxygen for 2 min, group C received 120 lg of ozone/ml oxygen for 1 min and group D received 120 lg of ozone/ml oxygen for 2 min.

6p kethamoi1 20-11-2019 21 0   Download

This paper presents the results of adsorption ability of heavy metal ions (Hg2+ and Cd2+ ) by fly ash (FA) before and after treatment using NaOH and H2SO4 solutions. Original- and treated FA were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscope (SEM). Specific surface area of FA before and after treatment was calculated by Brunauer – Emmett – Teller (BET) isotherm equation.

6p giesumanh 10-11-2018 24 0   Download

Samples with the compositions Y2.9Ca0.1Fe4.9Sn0.1O12 and Y3Fe4.9Sn0.1O12 were prepared by using a sol-gel technique. The influence of the substituted non-magnetic cations with different valences in the structural and magnetic properties was studied. X-ray diffraction and fieldemission electron scanning microscope techniques were used to study the crystal structure and morphology.

8p truongtien_09 08-04-2018 42 0   Download

Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental solid mechanics to characterize the material's resistance to fracture.In modern materials science, fracture mechanics is an important tool in improving the mechanical performance of materials and components.

56p beobobeo 01-08-2012 92 11   Download