Three-dimensional modeling method for heat exchange of rotary air preheater in coal-fired power plant

2010 ◽  
Vol 40 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Hai-wen Liang ◽  
Zhi-gao Xu
Keyword(s):  
Heat Exchange ◽  
Power Plant ◽  
Three Dimensional ◽  
Modeling Method ◽  
Air Preheater ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling

scholarly journals Determination of Some Body Measurements of Camels With Three Dimensional Modeling Method (3D)

2021 ◽  
Author(s):  
Alkan çağlı ◽  
M. Yılmaz
Keyword(s):  
Large Scale ◽  
Three Dimensional ◽  
Practical Method ◽  
Modeling Method ◽  
The Body ◽  
Body Measurements ◽  
3D Measurement ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
The Difference

Abstract In this study, the use of three-dimensional modeling method was tested in taking some body measurements in camels with a practical method and was compared with other measurement methods. As the animal material of the study, 12 single humped dromedary female camels and 14 double humped Camelus dromedarius X Camelus bactrianus: F1 male camels, totally 26 camels, were used in three camel farms in Incirliova district of Aydın province. The body measurements taken from each animal by using different three methods, namely by Manuel Method (MM), by Photography Method (PM), and by Three Dimensional Modeling Method (3D) were the Cidago Height (CH), the Back Height (BH), the Rump Height (RH), the Body Length (BL), the Brisket Height (BRH), the Abdominal Height (AH), the Shoulder Width (SW) and the Rump Width (RW) and these values were compared with each other. As a result of this study, the mean values of MM and 3D measurement values were very close to each other and the difference between them was found to be statistically insignificant. (P<0.05). The difference between the means of PM and MM/3D measurement values was found to be significant. (P <0.05). In the measurements taken by MM, 3D, PM methods in male camels, the values obtained by MM and 3D methods for CH, BH, RH, BRH, AH, BL, and SW were very close to each other and the differences between them were found insignificant statistically (p < 0.05). On the determined regression graph, a linear was found between MM and 3D measurement values. As a result of this study, it has been determined that the 3D modeling method can be used as a remote and more practical method in determining the morphological features of large-scale animals such as camels more reliably, more easily and more practically.

scholarly journals Research on 3D Modeling Method Based on Hybrid Octree Structure

2014 ◽  
Vol 8 (1) ◽  
pp. 323-329 ◽  
Author(s):  
Wang Yujian ◽  
Tan Shaowei ◽  
Dong Weiwei ◽  
Jing Wenpeng
Keyword(s):  
Data Model ◽  
Three Dimensional ◽  
Hash Table ◽  
Structure Type ◽  
Modeling Method ◽  
Prefix Code ◽  
Mesh Surface ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Hybrid Data

With studying deeply of the three-dimensional modeling method, this paper proposed a hybrid data model which based on Octree,the four fork tree and NURBS. The characteristic of fast convergence of Octree is used to segment the 3D entity. Describe the irregular surface of entity by NURBS, and restructure the local mesh surface. The model uses the mixture data structure of Octree and four fork tree to restructure mesh surface gradually. The storage structure is the Octree structure type; establish Hash table based on octal prefix code. Finally, an experimental model system is designed by using OpenGL. The feasibility and effectiveness of the algorithm has been verified.

scholarly journals A three dimensional modeling method for spherical open cell aluminum foams based on spherical core stratification algorithm

China Foundry ◽  
2019 ◽  
Vol 16 (4) ◽  
pp. 248-255 ◽  
Author(s):  
Ming-si Qi ◽  
Wei Zhang ◽  
Jun-yuan Wang ◽  
Guang-ming Ren ◽  
Yi-ping Yin ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Modeling Method ◽  
Aluminum Foams ◽  
Open Cell ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Spherical Core

scholarly journals A three-dimensional modeling method for quantitative photoacoustic breast imaging with handheld probe

2021 ◽  
Vol 21 ◽  
pp. 100222 ◽  
Author(s):  
Tao Han ◽  
Meng Yang ◽  
Fang Yang ◽  
Lingyi Zhao ◽  
Yuxin Jiang ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Three Dimensional ◽  
Modeling Method ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling
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