scholarly journals Three-dimensional engineering-geological model of the soil massif: the case study of the base of a hydrotechnical building

2018 ◽  
Vol 7 (1) ◽  
pp. 45
Author(s):  
Zhanghao Ren
Keyword(s):  
Three Dimensional ◽  
Geological Model ◽  
Sound Design ◽  
Three Dimensional Model ◽  
Construction Sites ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Geological Conditions ◽  
Dimensional Models ◽  
Three Dimensional Models

In the process of engineering and geological surveys, three-dimensional engineering-geological modeling makes it possible to perform a comprehensive assessment of the state of the territory for making sound-design decisions on the placement of construction sites and their structures. Secondly, a logical conclusion of a detailed study of engineering-geological and geotechnical conditions, which is implemented to use three-dimensional modeling, is a well-grounded design with a reasonable margin of safety, which causes a reduction in the total cost of the erected or reconstructed structure. Thirdly, in comparison with traditional engineering-geological two-dimensional models (cuts, maps, etc.), three-dimensional models give more information. This is especially important, when we think about the scale of the hydraulic structures. According to archival materials, it can be noted that there are many spatial geological heterogeneities in this territory, and the engineering-geological conditions turned out to be complex. Taking into account the advantages of three-dimensional modeling, the creation of a three-dimensional model of a dispersed soil massif is an actual task for solving complex engineering-geological problems. The article analyzes a three-dimensional engineering-geological model of the soil massif under a hydrotechnical building in the Moscow region, and then calculates its stress-strain state and the coefficient of stability of the sides of the ditch.

scholarly journals Processing Three-Dimensional Models of Archaeological Artifacts

2021 ◽  
Vol 20 (7) ◽  
pp. 48-61
Author(s):  
Pavel V. Chistyakov ◽  
Ekaterina N. Bocharova ◽  
Ksenia A. Kolobova
Keyword(s):  
Three Dimensional ◽  
3D Models ◽  
International Standards ◽  
Post Processing ◽  
Three Dimensional Model ◽  
Scaled Model ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Dimensional Models ◽  
Three Dimensional Models

This article provides a detailed account of the process of scanning, post-processing and further manipulation of three-dimensional models obtained with structured light scanners. Purpose. The purpose of the study is determined by the need for national archaeologists to learn the methods of three-dimensional modeling for the implementation of scientific research corresponding to international standards. Unfortunately, this direction in national archaeology began to develop in a relatively recent time and there is a lag in the application of three-dimensional modeling of national archaeology compared to the world level. Results. Any archaeological, experimental or ethnographic artifact can be used for three-dimensional scanning. To perform post-processing of three-dimensional models it is necessary to carry out primary scanning of an artifact by one of the existing algorithms. The algorithm for creating models, their positioning, simplification, saving in various formats and export is described. The main sequence of 3D models post-processing includes: processing of groups of scanned projections (their cleaning and alignment), creation of artifact model and processing/rectification of the resulting model using special software. Conclusion. As a result of correct implementation of the algorithm, the researcher receives a scaled model completely corresponding to the original artifact. Obtaining a scalable, texture-free three-dimensional model of the artifact, which fully corresponds to the original and exceeds a photograph in the quality of detail transfer, allows a scientist to conduct precise metric measurements and any procedures of non-invasive manipulation of the models. The ability to access a database of three-dimensional models of archaeological collections greatly simplifies the work of archaeologists, especially in situations when country borders are closed.

scholarly journals Challenges and approaches in three-dimensional modeling the engineering geological conditions of Hanoi area

2020 ◽  
Vol 61 (2) ◽  
pp. 1-9
Author(s):  
Ha Viet Nhu ◽  
Keyword(s):  
High Resolution ◽  
Statistical Evaluation ◽  
Three Dimensional ◽  
Geological Structure ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Geological Engineering ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Geological Conditions

In this study, the approaches and research methods have been proposed based on the analysis of challenges in modeling, establishing a three-dimensional model of geological engineering conditions of the Hanoi area. The three-dimensional model of the Hanoi area was composed of 21 geological engineering units as a stacked structure, with accuracy and reliability were verified by statistical evaluation. Based on the integration of engineering geological attributes, the model has contributed for reconstruction of the geospatial engineering geological structure of the study area as comprehensive, continuously, and high resolution.

scholarly journals Computer Reconstruction of the Appearance of Amur Cossacks and the Manchu in the 17th Century

2021 ◽  
pp. 11-21
Author(s):  
Aleksei Viktorovich Natsvin ◽  
Il'ya Evgen'evich Eremin ◽  
Aleksei Yur'evich Lokhov
Keyword(s):  
Far East ◽  
Three Dimensional ◽  
3D Models ◽  
17Th Century ◽  
Small Scale ◽  
Scale Production ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Dimensional Models ◽  
Three Dimensional Models

The article studies historical appearance of Russian servicemen of the Far East in the 17th century as well as their traditional opponents – soldiers of the eight-banner army of Qing China. The study sets a goal to practically model and print 3D models of the people understudy. To form basic sketches of the models the authors use historical images as well as modern reconstructions of uniforms and weapons. Computer modeling was carried out using open software. The approach is to develop a utilitarian technique for high-quality modeling of three-dimensional models of historical characters without professional art education. As a result, the authors have got unique three-dimensional models made according to a single algorithm. The use of three-dimensional modeling technologies provides for a fairly simple creation of both a character model itself and his uniform and weapons. Also, three-dimensional modeling allows one to create copies of individual objects thus forming a library that can significantly reduce the time spent on creating similar models. 3D printing technologies make it easy to replicate physical copies of a 3D model which in this case makes it possible to fulfill orders for small-scale production of souvenirs. The models can be applied in industrial production such as casting and milling.

THREE-DIMENSIONAL MODELING AS A SYSTEM FOR DISPLAYING TOTAL CHEMICAL SOIL POLLUTION

2021 ◽  
pp. 6-14
Author(s):  
N.P. KARPENKO ◽  
◽  
M.A. SHIRYAEVA
Keyword(s):  
Soil Contamination ◽  
Soil Pollution ◽  
3D Modeling ◽  
Catchment Area ◽  
Three Dimensional ◽  
Environmental Situation ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Total Soil ◽  
Three Dimensional Models

The method of three-dimensional model in the system of computer modeling MathCad and Autodesk 3ds Max by categories of total soil pollution is developed. A visualization block and an analytical block have been developed which are based on calculated mathematical models for analyzing and evaluating the environmental situation, risks, and environmental safety of the territory. Three-dimensional models of relief mapping of the Pekhorka river fl oodplain are constructed by integrating them with the help of a programming environment and optimized 3D modeling programs. Three-dimensional models with total soil contamination for water body sections are constructed. On the example of some sections of the catchment area of the Pekhorka river in the Balashikha region, models with soil contamination by the total ZC indicator were created. The development of 3D modeling techniques allows you to create predictive scenarios more accurately with a high degree of detail, as well as quickly approach the solution of environmental problems. Optimization of three-dimensional modeling in the fi eld of problems related to the catchment area contributes to the further operational solution of problems of rational land use and improvement of the environmental situation.

Three-Dimensional Modeling of MVT Lead-Zinc Deposit in Western Hunan and its Application

2014 ◽  
Vol 644-650 ◽  
pp. 2674-2677
Author(s):  
Kun Wang ◽  
Ke Yan Xiao
Keyword(s):  
Regional Scale ◽  
Three Dimensional ◽  
Hunan Province ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
The North ◽  
Dimensional Modeling ◽  
North Part ◽  
Lead Zinc ◽  
Fault Belt

In order to study the evolution and metallogenic regularity of MVT lead-zinc deposits in western portion of Hunan province (China), two sets of three-dimensional model are established by Minexplorer software: 3D model in typical deposit and 3Dmodel on regional scale. On the basis of synthetic analyses of two sets of models, the further prospecting should be focused on the north part of ore-bearing layer along the Huayuan-Zhangjiajie fault belt. It is effective to observe occurrence and distribution characteristics from the 3D geological model, and to provide the basis for further exploration prospecting of the concealed deposits.

scholarly journals Manufacturing of Flexible Surgical Guide for Fully Edentulous Patients

2012 ◽  
Vol 488-489 ◽  
pp. 1001-1005 ◽  
Author(s):  
Jamal Kashani ◽  
Zohreh Arabshahi ◽  
Mohammed Rafiq Abdul Kadir ◽  
Abbas Azari
Keyword(s):  
Three Dimensional ◽  
Internal Diameter ◽  
Surgical Guide ◽  
Three Dimensional Modeling ◽  
Surgical Guides ◽  
Dimensional Modeling ◽  
Drill Diameter ◽  
Modeling Software ◽  
Three Dimensional Models ◽  
Edentulous Patients

Despite efficiency of modern implantology, unplanned perforation and drill deviation could be happened during freehand placement. The aim of this study was to provide a methodology for fabricating dental surgical drill guide for fully edentulous patients while it was flexible in term of changing drill diameter. The data of patient consisted of bone anatomy and radio-opaque template obtained from computed tomography. Jawbone and radio-opaque template three dimensional models converted into a three dimensional modeling software by means of an image processing package. Based on jawbone anatomy and radio-opaque template, implantation plan and design of surgical guides were carried out in three dimensional software. Rapid prototyping technique was used to manufacture several surgical guides to be used in different drilling sequences. Finally stainless steel tubes were accommodated passage of drill. Sequential surgical guides were different only in terms of the metal tubes internal diameter. This provides the ability of changing diameter of the implant or drill after fabricating surgical guide.

Study on the Application of Computer Three-Dimensional Model's Simulation Functions

2013 ◽  
Vol 443 ◽  
pp. 27-30
Author(s):  
Qin Gu
Keyword(s):  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Simulation Functions ◽  
Dimensional Models ◽  
Three Dimensional Models

In this paper, the simulation functions of computer three-dimensional model as well as the advantages in the simulated application are briefly introduced, and also the application of the three-dimensional models simulation functions to the different industries is discussed in details.

Three-Dimensional FEM Analysis of Sensitive Mechanism of Airflow Level Posture Sensor Based on Thermoelectric Coupling

2011 ◽  
Vol 271-273 ◽  
pp. 211-215
Author(s):  
Ming Ming Ji ◽  
Lin Hua Piao ◽  
Bai Hua Li
Keyword(s):  
Finite Element ◽  
Model Building ◽  
Three Dimensional ◽  
Fem Analysis ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
Equation Solving ◽  
Dimensional Modeling ◽  
Element Simulation ◽  
Simulation Based

Using ANSYS program, the finite element simulation based on thermoelectric coupling is conducted by a series of procedures, such as three-dimensional model building of airflow level posture sensor according to the actual size of the proportion, network modifying, loads applying and equation solving. The sensitive mechanism of airflow level posture sensor is explained by finite element method. The numerical results show that compared with two-dimensional modeling, the simulation result of three-dimensional modeling and thermoelectric analysis methods are more comprehensive and accurate, which provides more reliable basis for practical research of the airflow level posture sensor.

scholarly journals DESIGNING A THREE-DIMENSIONAL MODEL OF THE CLASS SAFETY FOR THE RAILWAYS IN THE PROGRAM ASCON KOMPAS

2019 ◽  
Vol 7 ◽  
pp. 62-66
Author(s):  
Alexandra Zhuravleva
Keyword(s):  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Training Class ◽  
A Company ◽  
Safety Rules

This article demonstrates the possibility of a graphical program Kompas ASCON in the sphere of three-dimensional modeling of engineering and building objects. The created three-dimensional model of the training class for employees of JSC "Russian Railways" to study safety rules can have a real embodiment – all components are built according to catalogs and statements. In the course of work on this project various tools of the program are mastered: models of the room of a class of furniture are created. The basic operations of three-dimensional modeling and methods of creating assembly units are studied. All components of the class are paired. The resulting project has a high visibility and can be used as a presentation as a company that performs class projects, and the customer.

Synthesis of Three-Dimensional Models from Drawings Based on Spectral Graph Theory

2015 ◽  
Vol 756 ◽  
pp. 598-603 ◽  
Author(s):  
Aleksey Zakharov ◽  
Arkady Zhiznyakov
Keyword(s):  
Graph Theory ◽  
Three Dimensional ◽  
Spectral Graph Theory ◽  
Boundary Representation ◽  
Three Dimensional Model ◽  
Three Dimensional Objects ◽  
Spectral Graph ◽  
Dimensional Models ◽  
Three Dimensional Models

Task of automatic reconstruction of three-dimensional objects by drawing views presented. The algorithm based on a boundary representation of three-dimensional models. The algorithm consists of the following steps: automatic separation of the drawing per the views, determination of three-dimensional coordinates of vertices, definition and marking of wire model primitives, reconstruction of model faces and model elements. The fundamental concept of the algorithm is to find the structural elements of three-dimensional model with usage of pre-specified patterns. The templates are described by means of matrices. Matching algorithm uses spectral graph theory. Reconstruction results are presented.

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