scholarly journals Research on the Application of Computer-Aided Design in the Creation of Modern Lacquer Painting

2021 ◽  
Vol 1915 (3) ◽  
pp. 032028
Author(s):  
Guowei Su
Keyword(s):  
Computer Aided Design ◽  
Computer Aided ◽  
The Creation ◽  
Aided Design

scholarly journals ABOUT EFFECTIVE IMPLEMENTATION OF TOPOLOGICAL DELAY LINES

2019 ◽  
pp. 124-129
Author(s):  
S. А. Sorokin ◽  
O. Yu. Sysoev
Keyword(s):  
Computer Aided Design ◽  
Delay Line ◽  
Installation Space ◽  
Delay Lines ◽  
Effective Implementation ◽  
Computer Aided ◽  
Rectangular Area ◽  
Design Systems ◽  
The Creation ◽  
Aided Design

In  order  to  synchronize  signals  at  receiving  points  in  high‑speed  digital  electronics,  the  configurations  of  the  corresponding  tracks on the PCB must ensure the same signal delays. Their synchronization is ensured by the creation of topological delay  lines, which are realized by inscribing a meander in a certain area, as a rule, a rectangle. The article analyzes the influence of  the parameters of the delay line and the shape of the inscribed conductor on the efficiency of use of the installation space. It is  noted that computer‑aided design systems offer two basic options for inscribing a meander in a rectangular area: «accordion»  and «trombone». The impossibility of reducing and the inexpediency of increasing the width of the region of the delay line in the  «trombone» variant makes its use in narrow or short «corridors» ineffective. Therefore, the «accordion» version is considered  more versatile and flexible. It also concludes that it is preferable to use long narrow areas of delay lines and the advisability to  avoid very short and too narrow areas when automatically creating topological delay lines.

A Primitive Blocking Study of Reserves’ Graphs Using Computer-Aided Design

2011 ◽  
Vol 99-100 ◽  
pp. 1214-1217
Author(s):  
Zhi Qiang Meng ◽  
Hong Guang Ji ◽  
Hong Xing Liu
Keyword(s):  
Computer Aided Design ◽  
Visual Basic ◽  
Current Paper ◽  
Human Intervention ◽  
Database Applications ◽  
Block Form ◽  
Computer Aided ◽  
Data Error ◽  
The Creation ◽  
Aided Design

All kinds of mining enterprises prefer to use computer-aided design (CAD) in drawing figures of mining reserves. CAD is convenient to operate and ensures the creation of intuitive and beautiful figures. However, CAD causes data error easily due to human intervention. Moreover, CAD wastes time and is prone to omit records. To reduce the incidence of such errors, the current paper examines the transformation of CAD-drawn reserves’ figures and databases into “block” form. This paper also aims to realize the conversion of figure blocks and databases using Visual Basic (VB) in CAD and database applications. To achieve this result, the circle and text are first extracted from CAD form. Then, a series of changes is implemented. Lastly, figure blocks are endowed with new properties. Using this approach can quickly transform figure elements into block properties, achieving good application effects.

Sign in / Sign up

Export Citation Format

Share Document