Hierarchical Pipe System Disassembly Sequence Planning by Dynamic Self-Adaptive Tree Based Motion Planning

2013 ◽  
Vol 300-301 ◽  
pp. 36-42
Author(s):  
Bo Xuan Zhao ◽  
Jian Hua Liu ◽  
Ru Xin Ning ◽  
Mi Liu
Keyword(s):  
Motion Planning ◽  
Hierarchical Structure ◽  
Basic Algorithm ◽  
Geometric Information ◽  
Pipe System ◽  
System A ◽  
Disassembly Sequence ◽  
The Hierarchical Structure ◽  
Escape Path ◽  
Self Adaptive

This paper represents a hierarchical pipe system disassembly method by using dynamic self-adaptive tree (DSAT) based motion planning to perform disassembly for a complex pipe system. A pipe system CAD model is prepared initially to indicate the environment of the disassembly procedure. The improved motion planning method provides basic algorithm support for indicating the feasible escape path of a single part. Our technic gradually reduces the complexity of the pipe system to generate a hierarchical structure which takes all geometric information of the system. The hierarchical structure is preserved and used for the generation of a disassembly relationship graph which indicates the feasible disassembly sequences.

Study and Implementation on Interface Self-Adaptive Technology for Pervasive Terminals

2011 ◽  
Vol 268-270 ◽  
pp. 781-786
Author(s):  
Xian Quan Zeng ◽  
Yu Dong Feng
Keyword(s):  
Hierarchical Structure ◽  
Pervasive Computing ◽  
Computing System ◽  
Computing Environment ◽  
Adaptive Technology ◽  
Mode Of Application ◽  
The Hierarchical Structure ◽  
Adaptive Framework ◽  
Self Adaptive

In the pervasive computing environment, the users interact with the system through various terminals. How to adjust application interface according to the characteristics of terminals is very important in the pervasive computing system. In order to solve the interface diversity of pervasive terminals, an interface adaptive framework based on SVG is proposed. The framework adopts the hierarchical structure of separating interface and processing logic. By constructing the abstraction function mode of application, a uniformly SVG-based terminal interface is generated for different terminals. The simulation result shows that the framework has better practicability.

Triangulation grids and hierarchical structures of the models in calculation of LED modules

2018 ◽  
Vol 7 (2.2) ◽  
pp. 5
Author(s):  
Baynev Vitaly ◽  
Fedosin Sergej
Keyword(s):  
Hierarchical Structure ◽  
Optical System ◽  
Hierarchical Structures ◽  
Optical Systems ◽  
Main Stage ◽  
Additional Element ◽  
System A ◽  
Surface Models ◽  
The Hierarchical Structure ◽  
Development Application

The paper considers the problem of designing modern lighting devices and optical systems. Analysis of the development of lighting devices shows that the main stage in their development is the calculation of the optical system. The results of this calculation largely determine the lighting and functional characteristics of light devices. The efficiency of existing methods of calculation are not always satisfied of the development. Application and development of specialized software for the calculation and simulation of light devices significantly facilitates and speeds up the process of their design. The paper presents a mathematical model developed by the software system, described in the hierarchical structure of the simulation geometry LED modules and light devices. Light device in a hierarchical structure represented by the root element of the tree, where the housing, the optical system, a light source, protective glass, suspension assembly, and others are nodes. The affine transformation using to calculate of the absolute position of nodes. The geometry of the nodes is modeled using triangulation grids. To simulate smooth surfaces in a triangulated mesh introduced an additional element - the rib. The software package is carried out modeling of LED optical systems and luminaires based on them using surface models, ray tracing and calculation of photometric body.

Parafia unicka w Rachaniach do 1811 roku/ The Uniate Parish in Rachanie until 1811

2012 ◽  
Vol 67 (2) ◽  
Author(s):  
Janusz Adam Frykowski
Keyword(s):  
Hierarchical Structure ◽  
Geographical Location ◽  
Historical Sources ◽  
Holy Communion ◽  
The Hierarchical Structure ◽  
History Of ◽  
The Church ◽  
Ancillary Equipment

AbstractThe following paper depicts the history of Saint Simeon Stylites Uniate Parish in Rachanie since it became known in historical sources until 1811- that is the time it ceased to be an independent church unit. The introduction of the article contains the geographical location of the parish, its size and the position within the hierarchical structure of the Church. Having analysed post-visit inspection protocols left by Chelm Bishops, the appearance as well as fittings and ancillary equipment of the church in Rachanie in that particular period are reported. Moreover, the list of 4 local clergymen is recreated and their benefice is determined. As far as possible, both the number of worshipers and the number of Holy Communion receivers is determined.

Default Logic Models of Certain Inheritance Systems with Exceptions

1993 ◽  
Vol 18 (2-4) ◽  
pp. 129-149
Author(s):  
Serge Garlatti
Keyword(s):  
Hierarchical Structure ◽  
Formal Semantics ◽  
Sufficient Conditions ◽  
Nonmonotonic Reasoning ◽  
Default Logic ◽  
Representation Systems ◽  
The Hierarchical Structure ◽  
Necessary And Sufficient ◽  
Structure Of Knowledge ◽  
Made In

Representation systems based on inheritance networks are founded on the hierarchical structure of knowledge. Such representation is composed of a set of objects and a set of is-a links between nodes. Objects are generally defined by means of a set of properties. An inheritance mechanism enables us to share properties across the hierarchy, called an inheritance graph. It is often difficult, even impossible to define classes by means of a set of necessary and sufficient conditions. For this reason, exceptions must be allowed and they induce nonmonotonic reasoning. Many researchers have used default logic to give them formal semantics and to define sound inferences. In this paper, we propose a survey of the different models of nonmonotonic inheritance systems by means of default logic. A comparison between default theories and inheritance mechanisms is made. In conclusion, the ability of default logic to take some inheritance mechanisms into account is discussed.

scholarly journals Stepwise collapse of a giant pore metal–organic framework

2021 ◽  
Vol 50 (14) ◽  
pp. 5011-5022 ◽  
Author(s):  
Adam F. Sapnik ◽  
Duncan N. Johnstone ◽  
Sean M. Collins ◽  
Giorgio Divitini ◽  
Alice M. Bumstead ◽  
...  
Keyword(s):  
Distribution Function ◽  
Hierarchical Structure ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Metal Organic Framework ◽  
Defect Engineering ◽  
Structural Collapse ◽  
The Hierarchical Structure ◽  
Metal Organic ◽  
Organic Framework

Defect engineering is used to augment the porosity of MIL-100. Incorporation of defects leads to structural collapse and ultimately causes amorphisation. Pair distribution function analysis reveals a stepwise collapse of the hierarchical structure.

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