Spatio-temporal planning simulation of temporary elevators in construction using a game engine

2021 ◽  
Author(s):  
Keyi Wu ◽  
Borja García de Soto
Keyword(s):  
Game Engine ◽  
Temporal Planning ◽  
Spatio Temporal

scholarly journals Spatio-Temporal Planning for Mobile Ambient Agents

2015 ◽  
Vol 56 ◽  
pp. 96-103
Author(s):  
Radja Boukharrou ◽  
Jean-Michel Ilié ◽  
Djamel Eddine Saïdouni
Keyword(s):  
Temporal Planning ◽  
Spatio Temporal

Time and Space Reasoning for Ambient Systems

2017 ◽  
Vol 8 (3) ◽  
pp. 38-57 ◽  
Author(s):  
Radja Radja Boukharrou ◽  
Jean-Michel Ilié ◽  
Djamel Eddine Saidouni
Keyword(s):  
Spatial Information ◽  
Theoretical Foundation ◽  
Intelligent Agent ◽  
Planning System ◽  
Timing Constraints ◽  
True Concurrency ◽  
Temporal Planning ◽  
Dependent Behavior ◽  
Spatio Temporal ◽  
Ambient Systems

This paper presents an algebraic language, called Time-AgLOTOS, to describe time-dependent behavior of intelligent agent for the design of Ambient Intelligence systems. This specification model provides a theoretical foundation for performing planning under timing constraints. Based on a true-concurrency semantics, a contextual model, called Spatio-Temporal Planning System (STPS), is developed to capture all possible evolutions of an agent plan including context changes. The STPS provides formal description of possible actions to perform supporting timing constraints, action duration and spatial information. This structure offers new possibilities and strategies for taking agent real-time decisions in context-awareness manner.

E3 ubiquitin ligases

2005 ◽  
Vol 41 ◽  
pp. 15-30 ◽  
Author(s):  
Helen C. Ardley ◽  
Philip A. Robinson
Keyword(s):  
Protein Complexes ◽  
Loss Of Function ◽  
Direct Role ◽  
Cellular Processes ◽  
Substrate Protein ◽  
Protein Ubiquitination ◽  
C Terminus ◽  
Full Complement ◽  
Spatio Temporal ◽  
Eukaryotic Organisms

The selectivity of the ubiquitin–26 S proteasome system (UPS) for a particular substrate protein relies on the interaction between a ubiquitin-conjugating enzyme (E2, of which a cell contains relatively few) and a ubiquitin–protein ligase (E3, of which there are possibly hundreds). Post-translational modifications of the protein substrate, such as phosphorylation or hydroxylation, are often required prior to its selection. In this way, the precise spatio-temporal targeting and degradation of a given substrate can be achieved. The E3s are a large, diverse group of proteins, characterized by one of several defining motifs. These include a HECT (homologous to E6-associated protein C-terminus), RING (really interesting new gene) or U-box (a modified RING motif without the full complement of Zn2+-binding ligands) domain. Whereas HECT E3s have a direct role in catalysis during ubiquitination, RING and U-box E3s facilitate protein ubiquitination. These latter two E3 types act as adaptor-like molecules. They bring an E2 and a substrate into sufficiently close proximity to promote the substrate's ubiquitination. Although many RING-type E3s, such as MDM2 (murine double minute clone 2 oncoprotein) and c-Cbl, can apparently act alone, others are found as components of much larger multi-protein complexes, such as the anaphase-promoting complex. Taken together, these multifaceted properties and interactions enable E3s to provide a powerful, and specific, mechanism for protein clearance within all cells of eukaryotic organisms. The importance of E3s is highlighted by the number of normal cellular processes they regulate, and the number of diseases associated with their loss of function or inappropriate targeting.

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