scholarly journals Modeling of Complex Geological Body and Computation of Geomagnetic Anomaly

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Zhuo Jia ◽  
Sixin Liu ◽  
Siyuan Cheng ◽  
Xueran Zhao ◽  
Gongbo Zhang
Keyword(s):  
Magnetic Anomaly ◽  
Three Dimensional ◽  
Synthetic Data ◽  
Mining Area ◽  
Three Dimensional Model ◽  
Surface Magnetic Field ◽  
Geological Body ◽  
Rectangular Mesh ◽  
Actual Shape ◽  
Geomagnetic Anomaly

Modeling plays an important role in engineering exploration. However, the traditional rectangular mesh cannot meet the requirement because the actual shape of the model may be very complex. Therefore, this paper chooses the Delaunay grid for modeling and applies this method to magnetic numerical simulation. At the same time, we make use of the advantages of the Delaunay grid and choose to use grid encryption technology in the boundary and complex area of the model. Then, the formula for calculating the magnetic anomaly of tetrahedron is deduced in detail, and the magnetic anomaly with surface fluctuation is calculated. For a synthetic data model, Delaunay grids with different densities are used to model and calculate surface anomalies. The two results are compared with the analytical solution of the model. The results show that the method has high accuracy. Then, the method is applied to the actual geological body modeling in the Jinchuan mining area. According to local needs, a three-dimensional model with inhomogeneous grid density is established and the surface magnetic field of the model is calculated. Finally, the simulation data are compared with the measured data. The results show that the Delaunay grid modeling method has strong applicability.

Virtual Simulation of Ground Scene of the Mining Area

2011 ◽  
Vol 402 ◽  
pp. 702-705
Author(s):  
Yong Shun Han ◽  
Shao Kun Dong ◽  
Jun Han ◽  
Si Mei Zeng
Keyword(s):  
Three Dimensional ◽  
Mining Area ◽  
Virtual Simulation ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Simulation Results ◽  
Point Line

Mining has a nearly relation with the development of our country and people’s life, in order to improve the informationization of the mining, in this study, realize modeling the objects of the mining by dividing them into four parts, point, line, surface and body models, according to the characteristics of the ground environment and the types of the entities in the mining area. Then, study the methods and realize the modeling and visualization of the ground scene of the mining area by using the technology, ArcEngine, ADO and three-dimensional model. By verifying, this method has better simulation results.

Implicit Simulation for Three-Dimensional Spatial Morphology of Geological Body Based on Marching Cubes Algorithm

2012 ◽  
Vol 195-196 ◽  
pp. 807-813 ◽  
Author(s):  
Yan Hong Zou ◽  
Jian Chun He ◽  
Ming Lei Ding
Keyword(s):  
Interpolation Method ◽  
Three Dimensional ◽  
Marching Cubes ◽  
Three Dimensional Model ◽  
Borehole Data ◽  
Geological Investigation ◽  
Geological Body ◽  
Marching Cubes Algorithm ◽  
Spatial Morphology ◽  
Visualization Technology

Due to the discrete and incomplete sample data for the geological body in geological investigation, it is difficult to construct the three-dimensional model of geological body. Therefore, based on data interpolation, we propose a method to implement the three-dimensional implicit simulation for the geological body by programming with marching cubes algorithm. Firstly, the spatial interpolation method is used to predict the distribution trend of geological body and the three-dimensional spatial regular data field for the geological body is established. Secondly, the three-dimensional isosurface of geological body is extracted from discrete points by the marching cubes algorithm. Finally, combining with three-dimensional visualization technology of OpenGL, three-dimensional spatial morphology of geological body is simulated by tiny triangle approximation in computer graphics. Taken the borehole data in exploration engineering as example, this method is applied to develop the three-dimensional implicit simulation for ore body. The result of implicit simulation is close to the delineation of explicit simulation by human-computer interaction in three-dimensional geological modeling software. It shows that this method is feasible and efficient for the three-dimensional simulation of geological body.

Three-Dimensional Model for Virtual Surgical Simulation, during Complex Skull Base Surgery and Aneurysm Surgery

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Akio Morita ◽  
Toshikazu Kimura ◽  
Shigeo Sora ◽  
Kengo Nishimura ◽  
Hisayuki Sugiyama ◽  
...  
Keyword(s):  
Skull Base ◽  
Surgical Simulation ◽  
Skull Base Surgery ◽  
Three Dimensional ◽  
Aneurysm Surgery ◽  
Dimensional Model ◽  
Three Dimensional Model

Digitalization system of ancient architecture decoration art based on neural network and image features

2020 ◽  
pp. 1-12
Author(s):  
Wu Xin ◽  
Qiu Daping
Keyword(s):  
Neural Network ◽  
Construction Industry ◽  
Three Dimensional ◽  
Performance Testing ◽  
Image Features ◽  
Three Dimensional Model ◽  
Performance Effect ◽  
Data Process ◽  
And Performance ◽  
Construction Mode

The inheritance and innovation of ancient architecture decoration art is an important way for the development of the construction industry. The data process of traditional ancient architecture decoration art is relatively backward, which leads to the obvious distortion of the digitalization of ancient architecture decoration art. In order to improve the digital effect of ancient architecture decoration art, based on neural network, this paper combines the image features to construct a neural network-based ancient architecture decoration art data system model, and graphically expresses the static construction mode and dynamic construction process of the architecture group. Based on this, three-dimensional model reconstruction and scene simulation experiments of architecture groups are realized. In order to verify the performance effect of the system proposed in this paper, it is verified through simulation and performance testing, and data visualization is performed through statistical methods. The result of the study shows that the digitalization effect of the ancient architecture decoration art proposed in this paper is good.

Phonetic iconicity in the evaluative morphology of a sample of Indo-European, Niger-Congo and Austronesian languages

2010 ◽  
Vol 3 (2) ◽  
pp. 156-180 ◽  
Author(s):  
Renáta Gregová ◽  
Lívia Körtvélyessy ◽  
Július Zimmermann
Keyword(s):  
Three Dimensional ◽  
Sound Symbolism ◽  
Three Dimensional Model ◽  
Austronesian Languages ◽  
Place Of Articulation ◽  
European Languages ◽  
Phonetic Symbolism ◽  
The Individual ◽  
Core Vocabulary

Universals Archive (Universal #1926) indicates a universal tendency for sound symbolism in reference to the expression of diminutives and augmentatives. The research ( Štekauer et al. 2009 ) carried out on European languages has not proved the tendency at all. Therefore, our research was extended to cover three language families – Indo-European, Niger-Congo and Austronesian. A three-step analysis examining different aspects of phonetic symbolism was carried out on a core vocabulary of 35 lexical items. A research sample was selected out of 60 languages. The evaluative markers were analyzed according to both phonetic classification of vowels and consonants and Ultan's and Niewenhuis' conclusions on the dominance of palatal and post-alveolar consonants in diminutive markers. Finally, the data obtained in our sample languages was evaluated by means of a three-dimensional model illustrating the place of articulation of the individual segments.

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