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CMMI(Capability Maturity Model Integration) is a process framework which is organized by goals, practice and process area. The Maturity Level 3 stressed that the project level process must be tailored from the organization level process, that is to say, no matter how the project level process changes, it must satisfy the constraints of the organization level process. However, companies usually prefer...
Aiming at the lack of adequate and flexible access control in 3D virtual environment when used in education, according to RBAC model, we present an authority control method which can manage manipulations to all objects, e.g. a variety of assets, avatars, scripts and network communication pipes in 3D virtual environment. The proposed technique overcomes the insufficiency on access control aspect in...
The Five-hundred-meter Aperture Spherical radio Telescope (FAST) will be the largest single dish radio telescope upon completion. As one of the three critical innovations of the FAST project, the active reflector system is composed of thousands of reflector elements, actuators etc. The reliability study on the active reflector system is of great importance. The paper introduces a reliability analysis...
Based on the background of Sijiaying open-pit mine, using the information of the mining having been exposed and the engineering geologic investigation, the stability of six programs of the feasibility of slope angle has been analyzed by using the finite-difference program FLAC software. Optimal slope angle program obtained by analyzing is following: the upper part slope angle is 47°, the lower part...
This article will discuss how to improve the ability to protect the collection mural with Lidar and Geographic Information System (GIS) technology. Firstly, we gain three dimensional point clouds through the Lidar technology, and make high-precision Digital Orthophoto Map (DOM), which has the same scale as the real collection mural. Secondly, the spatial disease database will be built based on the...
First, the data structure of Personalized Print Mark Language (PPML) is analyzed profoundly in the paper; Second, on a basis of experiment about variable data printing, the creating and reading modules of PPML variable data printing job is designed and developed by Java; The modules can be directly applied to research and development of variable data printing system, therefore personalized digital...
This paper investigates how we can work towards building net-centric swarms of land, sea and air robots working together to accomplish a common goal. The goal is to bring together swarms of robots from all three sectors to safely benefit mankind without increasing dangers in the process. Several platforms are explored for simulation to investigate swarm robotics within heterogeneous environments.
For application researches of the detection for the gas signal source, a method for orientation estimation of the gas signal source in the two-dimensional space and its algorithm are presented in the paper. In the method, a mode of dual-line gas sensor array is applied to sample the signals of the gas concentration in real time, and the time delay estimation, an approach of the signal processing,...
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