scholarly journals Two-dimensional Gaussian fitting for precise measurement of lattice constant deviation from a selected-area diffraction map

Microscopy ◽  
2017 ◽  
Vol 67 (suppl_1) ◽  
pp. i142-i149 ◽  
Author(s):  
Raman Bekarevich ◽  
Kazutaka Mitsuishi ◽  
Tsuyoshi Ohnishi ◽  
Fumihiko Uesugi ◽  
Masaki Takeguchi ◽  
...  
Keyword(s):  
Lattice Constant ◽  
Precise Measurement ◽  
Two Dimensional ◽  
Gaussian Fitting ◽  
Constant Deviation

scholarly journals The Algorithm for Determining the Coordinates of a Point in Three-Dimensional Space by Using the Auxiliary Point

2013 ◽  
Vol 48 (4) ◽  
pp. 141-145 ◽  
Author(s):  
Bartlomiej Oszczak ◽  
Eliza Sitnik
Keyword(s):  
Fixed Point ◽  
Precise Measurement ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Satellite Navigation ◽  
Reference Points ◽  
Two Dimensional ◽  
Approximate Location ◽  
The Many ◽  
Three Dimensional Space

ABSTRACT During the process of satellite navigation, and also in the many tasks of classical positioning, we need to calculate the corrections to the initial (or approximate) location of the point using precise measurement of distances to the permanent points of reference (reference points). In this paper the authors have provided a way of developing Hausbrandt's equations, on the basis of which the exact coordinates of the point in two-dimensional space can be determined by using the computed correction to the coordinates of the auxiliary point. The authors developed generalised equations for threedimensional space introducing additional fixed point and have presented proof of derived formulas.

A COMPARISON BETWEEN THE TWO-DIMENSIONAL AND THREE-DIMENSIONAL LATTICES

2004 ◽  
Vol 18 (25) ◽  
pp. 1301-1309 ◽  
Author(s):  
ANDREI DOLOCAN ◽  
VOICU OCTAVIAN DOLOCAN ◽  
VOICU DOLOCAN
Keyword(s):  
Lattice Constant ◽  
Cohesive Energy ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Coupling Constants ◽  
Two Dimensional ◽  
Coupling Constant ◽  
Dimensional Lattice ◽  
Analytical Formulae ◽  
Three Dimensional Space

By using a new Hamiltonian of interaction we have calculated the interaction energy for two-dimensional and three-dimensional lattices. We present also, approximate analytical formulae and the analytical formulae for the constant of the elastic force. The obtained results show that in the three-dimensional space, the two-dimensional lattice has the lattice constant and the cohesive energy which are smaller than that of the three-dimensional lattice. For appropriate values of the coupling constants, the two-dimensional lattice in a two-dimensional space has both the lattice constant and the cohesive energy, larger than that of the two-dimensional lattice in a three-dimensional space; this means that if there is a two-dimensional space in the Universe, this should be thinner than the three-dimensional space, while the interaction forces should be stronger. On the other hand, if the coupling constant in the two-dimensional lattice in the two-dimensional space is close to zero, the cohesive energy should be comparable with the cohesive energy from three-dimensional space but this two-dimensional space does not emit but absorbs radiation.

scholarly journals Two-dimensional craniometry: morphometry and cephalometry

2021 ◽  
Author(s):  
Daniela Botero-González ◽  
Mario Ortiz ◽  
Adriana María Herrera-Rubio
Keyword(s):  
Soft Tissue ◽  
Precise Measurement ◽  
Radiographic Analysis ◽  
Two Dimensional ◽  
Shape Variation ◽  
Established Method ◽  
Biological Objects ◽  
Dimensional Measurements ◽  
Bone Research ◽  
Function Shape

Over the last twenty years, bone research has raised interest; the function, shape and alterations of bone tissue have been analyzed and reported. Craniometry is a method developed as a tool for the precise measurement of the skull and facial structures and it has been used not only for humans, but for a variety of mammals.  Morphometry is used to study and quantitatively compare the shape variation of biological objects, organs and organisms. Cephalometry uses two-dimensional measurements of the head and face involving a radiographic analysis to provide data on soft tissue, dental and skeletal relationships. Papers regarding bone research are difficult to access and usually, craniometry and morphometry are reported separately.  The object of this article is to report a two-dimensional craniometry performed in rats, using both morphometry and cephalometry. This specific craniometry is a functional, well established method which involves the entire anatomical aspects of the skull.

scholarly journals Lattice constant deviation from Vegard's law in GeSn alloys

2012 ◽  
Vol 61 (17) ◽  
pp. 176104
Author(s):  
Su Shao-Jian ◽  
Cheng Bu-Wen ◽  
Xue Chun-Lai ◽  
Zhang Dong-Liang ◽  
Zhang Guang-Ze ◽  
...  
Keyword(s):  
Lattice Constant ◽  
Vegard’S Law ◽  
Constant Deviation

scholarly journals Precise Measurement of Gamma-Ray Emission Probabilities for 187W by Using a Two-Dimensional 4πβ-γ Coincidence System

1999 ◽  
Vol 36 (12) ◽  
pp. 1119-1124 ◽  
Author(s):  
Nada MARNADA ◽  
Hideaki NAGATA ◽  
Naoyoshi UEDA ◽  
Keiichi IKEDA ◽  
Nobuo HAYASHI ◽  
...  
Keyword(s):  
Precise Measurement ◽  
Gamma Ray ◽  
Two Dimensional ◽  
Coincidence System ◽  
Gamma Ray Emission
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