The model is integrated satellite gyroscopic system operational determination of high-precision bearing

The article considers the possibility of rapid determination of azimuth directions with high accuracy. It is shown that the gyroscopic method and the relative method of space geodesy with high efficiency, allows to obtain the azimuths of the directions with high precision and Autonomous. To achieve high accuracy of orientation with the use of satellite geodetic equipment are encouraged to design observations with regard to the length and azimuth direction, and time of observation. This will allow to abandon the use of the original geodetic framework that will increase efficiency. To improve the reliability of the obtained azimuth directions, it is proposed to integrate the gyroscopic observations and satellite observations without using the original geodesic Foundation. Considered by the joint processing of satellite and gyro measurements as a dual and unequal dimensions. In conclusion, the a priori calculation of observing time and accuracy of the resulting values of azimuth directions.

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Rapid determination of Ba isotope compositions for barites using a H2O-extraction method and MC-ICP-MS

Journal of Analytical Atomic Spectrometry ◽

10.1039/d0ja00078g ◽

2020 ◽

Vol 35 (8) ◽

pp. 1566-1573

Author(s):

Lan-Lan Tian ◽

Ying-Zeng Gong ◽

Wei Wei ◽

Jin-Ting Kang ◽

Hui-Min Yu ◽

...

Keyword(s):

High Precision ◽

Extraction Method ◽

Rapid Determination ◽

Simple Method ◽

Icp Ms ◽

Isotope Measurement

This study presents a rapid and simple method of high precision Ba isotope measurement for barite using H2O extraction.

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An Improved EPMA Method for Gaining High Precision and High Accuracy Determination of Trace Elements in Quartz

Microscopy and Microanalysis ◽

10.1017/s1431927619012327 ◽

2019 ◽

Vol 25 (S2) ◽

pp. 2318-2319

Author(s):

Shui-Yuan Yang ◽

Ji-Qiang Cui ◽

Shao-Yong Jiang ◽

Jing Xie

Keyword(s):

Trace Elements ◽

High Precision ◽

High Accuracy ◽

Accuracy Determination

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Optimization of an inductively coupled plasma-optical emission spectrometry method for the rapid determination of high-precision Mg/Ca and Sr/Ca in foraminiferal calcite

Geochemistry Geophysics Geosystems ◽

10.1029/2002gc000488 ◽

2003 ◽

Vol 4 (6) ◽

pp. n/a-n/a ◽

Cited By ~ 20

Author(s):

D. R. H. Green ◽

M. J. Cooper ◽

C. R. German ◽

P. A. Wilson

Keyword(s):

High Precision ◽

Inductively Coupled Plasma ◽

Rapid Determination ◽

Optical Emission ◽

Optical Emission Spectrometry ◽

Emission Spectrometry ◽

Spectrometry Method ◽

Inductively Coupled ◽

Plasma Optical Emission Spectrometry

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Small-scale, high-precision and high-accuracy determination of Poisson’s ratios in cohesive marine sediments

Geo-Marine Letters ◽

10.1007/s00367-012-0305-z ◽

2012 ◽

Vol 33 (1) ◽

pp. 75-81 ◽

Cited By ~ 5

Author(s):

J. Christopher L’Esperance ◽

Bernard P. Boudreau ◽

Mark A. Barry ◽

Bruce D. Johnson

Keyword(s):

High Precision ◽

Marine Sediments ◽

High Accuracy ◽

Small Scale ◽

Poisson's Ratios ◽

Accuracy Determination ◽

Poisson’S Ratios

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THE ONE TO MULTIPLE AUTOMATIC HIGH ACCURACY REGISTRATION OF TERRESTRIAL LIDAR AND OPTICAL IMAGES

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xlii-3-1827-2018 ◽

2018 ◽

Vol XLII-3 ◽

pp. 1827-1833

Author(s):

Y. Wang ◽

C. Hu ◽

G. Xia ◽

H. Xue

Keyword(s):

3D Reconstruction ◽

High Precision ◽

Point Cloud ◽

High Efficiency ◽

Image Data ◽

High Accuracy ◽

Transformation Model ◽

Practical Significance ◽

Multiple Images ◽

Cultural Relic

The registration of ground laser point cloud and close-range image is the key content of high-precision 3D reconstruction of cultural relic object. In view of the requirement of high texture resolution in the field of cultural relic at present, The registration of point cloud and image data in object reconstruction will result in the problem of point cloud to multiple images. In the current commercial software, the two pairs of registration of the two kinds of data are realized by manually dividing point cloud data, manual matching point cloud and image data, manually selecting a two &ndash; dimensional point of the same name of the image and the point cloud, and the process not only greatly reduces the working efficiency, but also affects the precision of the registration of the two, and causes the problem of the color point cloud texture joint. In order to solve the above problems, this paper takes the whole object image as the intermediate data, and uses the matching technology to realize the automatic one-to-one correspondence between the point cloud and multiple images. The matching of point cloud center projection reflection intensity image and optical image is applied to realize the automatic matching of the same name feature points, and the Rodrigo matrix spatial similarity transformation model and weight selection iteration are used to realize the automatic registration of the two kinds of data with high accuracy. This method is expected to serve for the high precision and high efficiency automatic 3D reconstruction of cultural relic objects, which has certain scientific research value and practical significance.

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Weak Beam Imaging and Diffraction Studies of Stacking Faults in Silicon

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100092918 ◽

1976 ◽

Vol 34 ◽

pp. 590-591

Author(s):

T. Y. Tan ◽

W. K. Tice

Keyword(s):

Fast Neutron ◽

Rapid Determination ◽

Stacking Faults ◽

Imaging Method ◽

Large Reduction ◽

Dislocation Loops ◽

Fringe Spacing ◽

Weak Beam ◽

Kinematical Theory

In studying ion implanted semiconductors and fast neutron irradiated metals, the need for characterizing small dislocation loops having diameters of a few hundred angstrom units usually arises. The weak beam imaging method is a powerful technique for analyzing these loops. Because of the large reduction in stacking fault (SF) fringe spacing at large sg, this method allows for a rapid determination of whether the loop is faulted, and, hence, whether it is a perfect or a Frank partial loop. This method was first used by Bicknell to image small faulted loops in boron implanted silicon. He explained the fringe spacing by kinematical theory, i.e., ≃l/(Sg) in the fault fringe in depth oscillation. The fault image contrast formation mechanism is, however, really more complicated.

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On effects of non-systematic reflections on weak-beam images of partial dislocations

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100087756 ◽

1991 ◽

Vol 49 ◽

pp. 688-689

Author(s):

K. Z. Botros ◽

S. S. Sheinin

Keyword(s):

High Precision ◽

Stacking Fault ◽

Important Application ◽

Stacking Fault Energy ◽

Sharp Peak ◽

Weak Beam ◽

Partial Dislocations ◽

Deviation Parameter ◽

Beam Diffraction

The main features of weak beam images of dislocations were first described by Cockayne et al. using calculations of intensity profiles based on the kinematical and two beam dynamical theories. The feature of weak beam images which is of particular interest in this investigation is that intensity profiles exhibit a sharp peak located at a position very close to the position of the dislocation in the crystal. This property of weak beam images of dislocations has an important application in the determination of stacking fault energy of crystals. This can easily be done since the separation of the partial dislocations bounding a stacking fault ribbon can be measured with high precision, assuming of course that the weak beam relationship between the positions of the image and the dislocation is valid. In order to carry out measurements such as these in practice the specimen must be tilted to "good" weak beam diffraction conditions, which implies utilizing high values of the deviation parameter Sg.

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