Design and Preliminary Calculation of the Accuracy of Special Geodetic and Mine Surveying Networks

Sholomitskii, A. A.; Lagutina, E. K.

doi:10.1088/1755-1315/272/2/022010

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…It should be said that gradient methods, which are often used in optimization, have found their application in geodesy, so J. Li, et al [8] used this method to determine the orientation parameters of stereoparas. Gradient methods were also used in the equalization of geodetic constructions [9].…”

Section: Introductionmentioning

confidence: 99%

Applying Newton’s second order optimization method to define transition keys between planar coordinate systems

2020

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The article considers the theoretical component of Newton’s second-order method, its main advantages and disadvantages when used in geodesy. The algorithm for determining the minimum of target functions by the Newton method of the second order was studied and analyzed in detail. Parameters of connection between flat rectangular coordinate systems are calculated. The task of determining the transition keys is relevant for geodesy. Comparative analysis of Newton’s method with the method of conjugated gradients was carried out. The algorithm for solving this problem was implemented in the Visual Basic for Applications software environment. The obtained data allow us to conclude that the Newton method can be used more widely in geodesy, especially in solving nonlinear optimization problems. However, the successful implementation of the method in geodetic production is possible only if the computational process is automated, by writing software modules in various programming languages to solve a specific problem.

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Section: Introductionmentioning

confidence: 99%

Applying Newton’s second order optimization method to define transition keys between planar coordinate systems

2020

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Land and Informational Approach to the Technological Security of Nuclear Testing Site Economic Use

Akhmetov

Ustavich

Dubrovskiy

2020

IOP Conf. Ser.: Earth Environ. Sci.

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As of today, nuclear tests are prohibited by the Comprehensive Nuclear-Test-Ban Treaty (CTBT) that was adopted by the 50th session of the UN General Assembly in 1996. However, in the more than 50 years of nuclear testing, more than 2000 nuclear explosions have been carried out on nuclear test sites. Nuclear tests have caused irreversible damage to the local environment, in particular to the nuclear test sites themselves. Most of them have been shut down and have not been used for a long time. Today there have been attempts to use radiation polluted lands for economic purposes. The article explores the practice of topographic and cadastre surveys in the nuclear testing facility at Semipalatinsk. The goal of these measures is a land survey to measure the radioactive pollution and identify possible uses of the land with different degrees of pollution for economic purposes of the residents of the nuclear testing facility and its environs. The article introduces the term “forced land use”, which results from the fact that people inhabit territories that have been previously polluted by radiation. The developed land and information approach proposes to divide the area into zones depending on the degree of radiation pollution and possible types of economic activities. Land survey involves a land mapping that shows the registered amounts of radionuclide. Methods of geoinformation analysis and secondary radiactive contamination distribution simulation are employed to conduct the land survey and establish possible economic uses.

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Geodetic Information in Automated System of Technical Support and Maintenance

Kemerbayev¹

2020

Vestnik SSUGT

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Two years ago, at the Pavlodar oil chemistry refinery LLP, as part of the modernization of the production process, an automated system for maintenance and repair of equipment (PM) was introduced. This system, consisting of several subsystems, made it possible to monitor the workflow, monitor many production cycles, compile statistics on the performance of various production tasks, identify problematic zones, and also pre-predict the failure of a particular equipment, calculate problematic zones. However, the process of expanding the system of functional maintenance does not stand still. Currently, as part of the digitalization of the production process, the plant is implementing a project to create a 3D master plan for the plant. The article describes in detail the process of phased creation of a digital spatial model and its relationship with the automated control system for maintenance and repair of equipment. One of the main stages of creating a three-dimensional model is described in detail – the process of obtaining high-precision geodetic measurements to create a geodetic base, field work, and the creation of a plan-height justification. The methodology of laser scanning, the process of processing the obtained data, modeling and filling the digital model with attributive data is described. Today it is difficult to dispute the importance of introducing digital spatial modeling in production and the main role in the success of these innovative projects is played by correctly received, processed and implemented initial data in the model. Thus, geodetic support is a key step in the complex technological process of creating a digital spatial double or 3D model of the plant and its operation in the maintenance system.

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Design and Preliminary Calculation of the Accuracy of Special Geodetic and Mine Surveying Networks

Cited by 4 publications

References 12 publications

Applying Newton’s second order optimization method to define transition keys between planar coordinate systems

Applying Newton’s second order optimization method to define transition keys between planar coordinate systems

Land and Informational Approach to the Technological Security of Nuclear Testing Site Economic Use

Geodetic Information in Automated System of Technical Support and Maintenance

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