This paper introduces the external design and internal structure of the database and the scheme of divided layers of 1∶1000 scale land-use data. Accordingly, the paper offers some reference function to the foundation of database based on big scale land-use map.
Through this,domestic factories can get rid of dependence on physical prototype machine in external design and realize the transformation from physical mock-up technique to digital mock-up one in a short period.
The history of aero-engine external design technology development was reviewed and the general process of aero-engine external design is introduced. The distinctions among traditional external design,2-D & 3-D CAD external design are distilled. This paper focused on the process,method,features and advantages of external design of aero-engine digital mock-up by applying UG,which indicates that external 3-D digital design technique of aero-engine is necessary and feasible.
The capability of attacker on ground(AOG) for accomplishing a series ofmilitary tasks is called the combat effectiveness(CE). The estimation of CE is one ofimportant tasks in the pre-development and conceptual design and the foundation ofexternal design for AOG .
As a result,the thermal boundary condition of adsorption bed must be designed as thermal insulation,furthermore,heat enhancement is required to improve the temperature distribution so as to reduce the energy consumption in regeneration and assure the evenness of desorption.
This text passes the research toward the museum exterior environment design unite with geographic environment,historical humanities environment and historical site,architecture design unite with Minimalism.
Finally, three aspects of the external design are described: multi-type instruments, a high-level interactive programming language and telecommunications.
The presentation of the program's internal/external design includes information on goals and objectives, structure, work activities, and reviews of the program to date.
The foundation of the land-use database of Nanhai City was based on the 1∶1000 scale map of land use. This paper introduces the external design and internal structure of the database and the scheme of divided layers of 1∶1000 scale land-use data. Accordingly, the paper offers some reference function to the foundation of database based on big scale land-use map.
The paper introduces the basic notion of distributed firewall, analyses the security threatens. Then it introduces IPSec protocols,and presents an IPSec-based distributed firewall security architecture including the internal design and external design.This architecture combines IPSec and some other secure measures with distribtued firewall so as to give distributed firewall stronger security.