Positioning service is one of Wireless Sensor Networks’ (WSNs) fundamental services. The accurate position of the sensor nodes plays a vital role in many applications of WSNs. In this paper, a 3D positioning algorithm is being proposed, using mobile anchor node to assist sensor nodes in order to estimate their positions in a 3D geospatial environment. However, mobile anchor node’s 3D path optim...

The Coupling Map (CM) has been proposed as an analytical tool to describe the dynamic behavior of long reach manipulators in the micro-gravity of space. The systems configuration considered consists of a relatively small high performance manipulator carried by a large flexible deployable structure, such as the one proposed for International Space Station Alpha. Such systems are subject to perfo...

Many robotics applications involve motion planning with uncertainty. In this paper, we focus on path planning for planar systems by optimizing the probability of successfully arriving at a goal. We approach this problem with a modified version of the Path-of-Probability (POP) algorithm. We extend the POP algorithm to allow for a moving target and to optimize the number of steps to reach the goa...

The PRM (probabilistic roadmap method) path planning algorithm is applied to the mobile robot path planning problem of limited environment. And a path optimization algorithm based on modified node enhancement strategies and geometric smoothing is proposed. The node enhancing method is used to optimize the initial planning with the base PRM algorithm, the original path nodes are gradually substi...

1. In 2002 the Federal Statistical Office of Germany (Destatis) started to re-structure its data editing process. The focus of its ambitious new data editing concept is on enhancing both the planning and the execution of the underlying work steps. In a prior evaluation of the previous practice, a variety of subprocesses was identified. By re-arranging these sub-processes, the crucial role of ta...

As a floating system connecting hydraulic support and scraper conveyor, the path planning of pushing mechanism is great significance for their coordinated movement. In this paper, method based on extreme learning machine (ELM) Descartes proposed. According to motion characteristics moving mechanism, it transformed into industrial robot model, coordinates key points ear seat conveyor when advanc...

While veriication methods are becoming more frequently integrated into software development projects, software testing is still the main method used to search for programming errors. Software testing approaches focus on methods for covering diierent execution paths of a program, e.g., covering all the statements, or covering all the possible tests. Such coverage criteria are usually approximate...

Recently, mesh surfaces have become the focus of considerable interest due to its simplicity for data exchange and geometric computation. However, for mesh surface machining, there are few tool path planning strategies but iso-planar method. In this article, a contour-parallel tool path method is presented for machining complicated mesh surfaces with holes or islands by introducing a so-called ...

Modeling of complex systems and phenomena is of value in science learning and is increasingly emphasised as an important component of science teaching and learning. Modeling engages learners in desired pedagogical activities. These activities include practices such as planning, building, testing, analysing, and critiquing. Designing realistic models is a difficult task. Computer environments al...