scholarly journals Comprehensive Research of 10C Nucleus Using Different Theoretical Approaches

2021 ◽  
Vol 66 (8) ◽  
pp. 653
Author(s):  
M.A. Aygun
Keyword(s):  
Experimental Data ◽  
Theoretical Analysis ◽  
Calculation Method ◽  
Simple Calculation ◽  
Cluster Approach ◽  
Cluster States ◽  
Density Distributions ◽  
Theoretical Approaches ◽  
Different Types ◽  
Theoretical Results

We perform an extensive theoretical analysis of 10C nucleus with the use of various theoretical approaches involving the different nuclear potentials and different density distributions, as well as a simple cluster approach. We try to explain new measured and challenging experimental data on the 10C + 58Ni system at 35.3 MeV. First, we investigate the effect of thirteen different potentials. Then, we examine ten different types of density distributions for 10C nucleus. Finally, we present a simple calculation method for various cluster states of 10C, compare all the theoretical results with the experimental data, and obtain their improved agreement.

A comprehensive theoretical analysis of 22Ne nucleus by using different density distributions, different nuclear potentials and different cluster approach

2020 ◽  
Vol 29 (01) ◽  
pp. 1950112
Author(s):  
M. Aygun
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Theoretical Analysis ◽  
Cross Sections ◽  
Angular Distributions ◽  
Cluster Approach ◽  
Systematic Analysis ◽  
Density Distributions ◽  
Theoretical Approaches ◽  
Scattering Cross Sections

In this study, a systematic analysis is made on the [Formula: see text]Ne nucleus. First, using different theoretical approaches, we show eight density distributions for the [Formula: see text]Ne nucleus. For there densities, we obtain the elastic scattering angular distributions of [Formula: see text]Ne by [Formula: see text]C and [Formula: see text]C targets. Then, to offer alternative nuclear potentials in explaining nuclear interactions related to [Formula: see text]Ne projectile, we calculate the elastic scattering cross-sections of [Formula: see text]C and [Formula: see text]C reactions by using six different nuclear potentials. Finally, we investigate cluster structures of the [Formula: see text]Ne nucleus via a simple cluster approach. We compare the calculated elastic scattering angular distributions with the experimental data.

Analysis of Yarn Tension in the Yarn-Forming Zone in Friction Spinning

1997 ◽  
Vol 67 (9) ◽  
pp. 643-653 ◽  
Author(s):  
Ali Akbar Merati ◽  
Fujio Konda ◽  
Masaaki Okamura ◽  
Etsuo Marui
Keyword(s):  
Experimental Data ◽  
Theoretical Analysis ◽  
Air Pressure ◽  
Effective Parameters ◽  
Yarn Tension ◽  
Tension Distribution ◽  
Low Tension ◽  
Theoretical Results ◽  
Research Show

We have analyzed the tension distribution along the yarn tail in the yarn-forming zone of a friction spinning machine by considering the effective parameters of the torque applied to the yarn tail. Tension is applied to the yarn tail by suction air pressure and rotation of friction rollers. The yarn tension in the yarn-forming zone is measured for various yarn counts and suction air pressures. The effects of the parameters on yarn tension are considered in a theoretical analysis based on tension distribution along the conical yarn tail. Theoretical results are compared with me experimental data. The results of this research show that yarn tension increases with increasing suction air pressure and yarn size in tex, and yam diameter decreases with increasing suction air pressure for the same yarn size. Therefore, because of the low tension experienced with fine yarns, it is difficult to properly produce such yarns through friction spinning.

Theoretical Studies of the Spin Hamiltonian Parameters for Fe0 and Mn– in Silicon Center

2013 ◽  
Vol 634-638 ◽  
pp. 2518-2522
Author(s):  
Min Quan Kuang ◽  
Shao Yi Wu ◽  
Bo Tao Song ◽  
Xian Fen Hu
Keyword(s):  
Experimental Data ◽  
Hyperfine Structure ◽  
Theoretical Studies ◽  
Spin Hamiltonian ◽  
Cluster Approach ◽  
Valence States ◽  
Structure Constants ◽  
Hamiltonian Parameters ◽  
Theoretical Results ◽  
Good Agreement

The spin Hamiltonian parameters (g factors and the hyperfine structure constants) for the octahedral interstitial Fe0and Mn in silicon are theoretically investigated using the perturbation formulas of these parameters for a 3d8ion under octahedral environments based on the cluster approach. The theoretical results show good agreement with the experimental data, and the ligand contributions should be considered due to the strong covalency of the systems. The interstitial occupation of the above novel 3d8impurities of rare valence states in silicon is discussed.

Investigations of the EPR Parameters and Local Structure for one Cu2+ Center in CdS

2008 ◽  
Vol 280-281 ◽  
pp. 15-20
Author(s):  
Li Hua Wei ◽  
Shao Yi Wu ◽  
Yue Xia Hu ◽  
Xue Feng Wang
Keyword(s):  
Experimental Data ◽  
Hyperfine Structure ◽  
Local Structure ◽  
Defect Structure ◽  
Reasonable Agreement ◽  
Cluster Approach ◽  
Epr Parameters ◽  
Structure Constants ◽  
Theoretical Results ◽  
The Ideal

The EPR g factors g// and g and the hyperfine structure constants for one substitutional Cu2+ center in CdS are theoretically investigated from the perturbation formulas of these parameters for a 3d9 ion under trigonally distorted tetrahedra. In view of the significant covalency of the [CuS4]6 cluster, the ligand contributions are taken into account on the basis of the cluster approach. According to the calculations, the impurity Cu2+ is found not to occupy exactly the ideal Cd2+ site but to suffer a small inward displacement 0.12 Å toward the ligand triangle along C3 axis. The theoretical results by considering the above impurity displacement show reasonable agreement with the experimental data. The defect structure of this Cu2+ center is also discussed.

Capsule-Pipelining—An Improved Theoretical Analysis

1977 ◽  
Vol 99 (4) ◽  
pp. 763-771 ◽  
Author(s):  
V. K. Garg
Keyword(s):  
Experimental Data ◽  
Theoretical Analysis ◽  
Pipe Wall ◽  
Energy Requirements ◽  
Pipeline System ◽  
Horizontal Pipe ◽  
Optimum Operation ◽  
Theoretical Results

This paper provides an improvement over the earlier theoretical analysis for a rigid, frictionless, cylindrical capsule moving parallel to the horizontal pipe wall (Garg and Round [1]) by taking into account the effects of friction between the capsule and pipe surfaces and of nonuniform clearance over the capsule length. It is found that these effects markedly affect the energy requirements suggesting, thereby, an optimum operation of the capsule-pipeline system. The theoretical results are also compared with the available experimental data.

Microdiffraction Patterns of Small Metallic Particles II; Theoretical Analysis

1982 ◽  
Vol 40 ◽  
pp. 668-669
Author(s):  
A. Gómez ◽  
P. Schabes-Retchkiman ◽  
M. José-Yacamán ◽  
T. Ocaña
Keyword(s):  
Experimental Data ◽  
Electron Diffraction ◽  
Theoretical Analysis ◽  
Size Range ◽  
Dynamical Theory ◽  
Metallic Particles ◽  
Splitting Effect

The splitting effect that is observed in microdiffraction pat-terns of small metallic particles in the size range 50-500 Å can be understood using the dynamical theory of electron diffraction for the case of a crystal containing a finite wedge. For the experimental data we refer to part I of this work in these proceedings.

A Simple Calculation Method of Flashover Characteristics for Long Air Gaps under Various Discharge Conditions

1993 ◽  
Vol 113 (3) ◽  
pp. 252-258
Author(s):  
Kiyoto Nishijima ◽  
Itaru Tsuneyasu ◽  
Hiraku Nakahodo ◽  
Masaharu Minakami
Keyword(s):  
Calculation Method ◽  
Simple Calculation ◽  
Air Gaps

Fabrication of Bulk Functionally-Graded Syntactic Foams for Impact Energy Absorption

2012 ◽  
Vol 706-709 ◽  
pp. 711-716 ◽  
Author(s):  
Tadaharu Adachi ◽  
Masahiro Higuchi
Keyword(s):  
Theoretical Analysis ◽  
Energy Absorption ◽  
Functionally Graded ◽  
Fabrication Process ◽  
Syntactic Foams ◽  
Compression Tests ◽  
Matrix Resin ◽  
Local Fracture ◽  
Density Distributions ◽  
The Matrix

Function of functionally-graded (FG) foams as energy absorption material for impact was discussed on the basis of theoretical analysis, and fabrication process of the foams was proposed in the paper. The FG foams were found to be useful as impact absorber due to progressively local fracture or cushion in the theoretical analysis. Next the fabrication process of the FG foams was suggested. The graded dispersion of the micro-balloons was conducted before curing the matrix resin in the process. The density distributions in the FG foams were confirmed to be predicted by the numerical analysis on the basis of floating the micro-balloons. Finally, compression tests were carried out to evaluate mechanical properties.

The Compliance of Solid, Wide-Faced Spur Gears

1990 ◽  
Vol 112 (4) ◽  
pp. 590-595 ◽  
Author(s):  
J. H. Steward
Keyword(s):  
Experimental Data ◽  
Contact Line ◽  
Load Distribution ◽  
3D Model ◽  
Spur Gear ◽  
Point Load ◽  
Spur Gears ◽  
Line Load ◽  
Gear Teeth ◽  
Theoretical Results

In this paper, the requirements for an accurate 3D model of the tooth contact-line load distribution in real spur gears are summarized. The theoretical results (obtained by F.E.M.) for the point load compliance of wide-faced spur gear teeth are set out. These values compare well with experimental data obtained from tests on a large spur gear (18 mm module, 18 teeth).

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