Energetics as Self-Organized System: Methodological Aspects

2002 ◽  
Vol 7 (2) ◽  
pp. 123-137
Author(s):  
R. Šiugždaitė ◽  
S. Norvaišas
Keyword(s):  
Urban System ◽  
Real Data ◽  
System Modelling ◽  
Decision Support Tools ◽  
Self Organized ◽  
Support Tools ◽  
Self Organized Criticality ◽  
Methodological Aspects ◽  
Best Fit

In the article we propose new decision support tools for region energetics development. The method is based on analysing complex system’s state and comparing it with the self-organized criticality (SOC) class that characterize the long-term system’s stability. We start with urban system modelling using cellular automata (CA) with the best fit to real data and then we raise hypothesis about adequacy of urban and energetics system elements distribution. The urban data analysis shows that it is in SOC state for wide rank of countries. We calculate required parameters for energetics system, which are used in decision making for the system long-term development.

scholarly journals Fractal analysis for the ULF data during the 1993 Guam earthquake to study prefracture criticality

2006 ◽  
Vol 13 (4) ◽  
pp. 409-412 ◽  
Author(s):  
Y. Ida ◽  
M. Hayakawa
Keyword(s):  
Fractal Analysis ◽  
Main Shock ◽  
Epicentral Distance ◽  
Sense Of Self ◽  
Low Frequency ◽  
Large Earthquake ◽  
Self Organized ◽  
Self Organized Criticality ◽  
Electromagnetic Signature

Abstract. An extremely large earthquake (with magnitude of 8.2) happened on 8 August 1993 near the Guam island, and ultra-low-frequency (ULF) (frequency less than 1 Hz) electromagnetic fields were measured by 3-axis induction magnetometers at an observing station (with the epicentral distance of 65 km) with sampling frequency of 1 Hz. In order to study electromagnetic signature of prefracture criticality, we have undertaken the fractal (mono-fractal) analysis by means of the Higuchi's method for the ULF data during the 1993 Guam earthquake. Then, it is found that the fractal dimension exhibits five maxima 99, 75, 52, 21, and 9–4 days before the earthquake main shock, which suggests the ULF electromagnetic signature of nonlinear evolution (in the sense of self-organized criticality) taking place in the lithosphere just before the 1993 large Guam earthquake. That is, there take place step-like changes in the lithosphere during the long-term of the order of several months before the main shock.

scholarly journals Towards Sustainability: New Tools for Planning Urban Pedestrian Mobility

2021 ◽  
Vol 13 (16) ◽  
pp. 9371
Author(s):  
Daniela Santilli ◽  
Mauro D’Apuzzo ◽  
Azzurra Evangelisti ◽  
Vittorio Nicolosi
Keyword(s):  
Road Safety ◽  
Road Traffic ◽  
Hybrid Approach ◽  
Real Data ◽  
Decision Support Tools ◽  
Sustainable Mobility ◽  
Combined Use ◽  
Support Tools ◽  
Multimodal Transport ◽  
The Impact

Background: Since the beginning of the new millennium, sensitivity towards the environment has been spreading globally. In fact, countries are adopting measures to develop new decision support tools that can evaluate the impact of interventions to promote and encourage sustainable mobility. To reduce the levels of pollution related to road traffic, policies that favor multimodal transport alternatives have been strengthened. This involves the combined use of public transport, cycling and walking paths, as well as sharing services where available. Regardless of the type of transport, the pedestrian component remains relevant in cities, even if the infrastructures are often not adequate to accommodate it and conflicts arise that must be managed. It is, therefore, necessary to assess the exposure to risk in terms of road safety. Methods: To this end, the work proposes a forecasting model to estimate the pedestrian flows that load the network. The methodology employs a hybrid approach that appears to better capture the movements of pedestrians. Results: By comparing the results of the model with the real data collected on the study area, satisfactory estimates were obtained. Conclusions: Therefore, this can be an effective tool to help road managers to evaluate the actions to protect vulnerable users.

Strategies and Decision-Support Tools for Optimizing Long-Term Groundwater Monitoring Plans—MAROS 2.0

2004 ◽  
Vol 8 (3-4) ◽  
pp. 109-128 ◽  
Author(s):  
Meng Ling ◽  
Hanadi S. Rifai ◽  
Julia J. Aziz ◽  
Charles J. Newell ◽  
James R. Gonzales ◽  
...  
Keyword(s):  
Decision Support ◽  
Groundwater Monitoring ◽  
Decision Support Tools ◽  
Support Tools

Development of decision support tools for designing Long Term Monitoring Plans (LTMPs)

2020 ◽  
pp. 337-338
Author(s):  
H.S. Rifai ◽  
M. Ling ◽  
C.J. Newell ◽  
S.L. Ita ◽  
M. Faile
Keyword(s):  
Decision Support ◽  
Decision Support Tools ◽  
Support Tools ◽  
Long Term Monitoring ◽  
Term Monitoring

scholarly journals Landslides, sandpiles, and self-organized criticality

2003 ◽  
Vol 3 (6) ◽  
pp. 505-514 ◽  
Author(s):  
S. Hergarten
Keyword(s):  
Time Dependent ◽  
Mass Movements ◽  
Size Distributions ◽  
Triggering Mechanism ◽  
Self Organized ◽  
Long Time ◽  
Self Organized Criticality ◽  
Relationship Of ◽  
Power Law Distributions

Abstract. Power-law distributions of landslides and rockfalls observed under various conditions suggest a relationship of mass movements to self-organized criticality (SOC). The exponents of the distributions show a considerable variability, but neither a unique correlation to the geological or climatic situation nor to the triggering mechanism has been found. Comparing the observed size distributions with models of SOC may help to understand the origin of the variation in the exponent and finally help to distinguish the governing components in long-term landslide dynamics. However, the three most widespread SOC models either overestimate the number of large events drastically or cannot be consistently related to the physics of mass movements. Introducing the process of time-dependent weakening on a long time scale brings the results closer to the observed statistics, so that time-dependent weakening may play a major part in the long-term dynamics of mass movements.

scholarly journals Communicating with Coastal Decision-Makers and Environmental Educators via Sea Level Rise Decision-Support Tools

2018 ◽  
Vol 17 (03) ◽  
pp. A03 ◽  
Author(s):  
Denise DeLorme ◽  
Sonia Stephens ◽  
Scott Hagen ◽  
Matthew Bilskie
Keyword(s):  
Decision Support ◽  
Focus Groups ◽  
Sea Level Rise ◽  
Sea Level ◽  
Decision Makers ◽  
Decision Support Tools ◽  
Support Tools ◽  
Environmental Educators ◽  
Stakeholder Needs

Communicating about environmental risks requires understanding and addressing stakeholder needs, perspectives, and anticipated uses for communication products and decision-support tools. This paper demonstrates how long-term dialogue between scientists and stakeholders can be facilitated by repeated stakeholder focus groups. We describe a dialogic process for developing science-based decision-support tools as part of a larger sea level rise research project in the Gulf of Mexico. We demonstrate how focus groups can be used effectively in tool development, discuss how stakeholders plan to use tools for decision-making and broader public outreach, and describe features that stakeholders perceive would make products more usable.

scholarly journals Self-Organized Criticality of Rainfall in Central China

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Zhiliang Wang ◽  
Chunyan Huang
Keyword(s):  
Central China ◽  
Scale Invariant ◽  
Drought Duration ◽  
Climate Zones ◽  
Self Organized ◽  
Self Organized Criticality ◽  
Rain Events ◽  
Term Rain ◽  
Dynamics Process

Rainfall is a complexity dynamics process. In this paper, our objective is to find the evidence of self-organized criticality (SOC) for rain datasets in China by employing the theory and method of SOC. For this reason, we analyzed the long-term rain records of five meteorological stations in Henan, a central province of China. Three concepts, that is, rain duration, drought duration, accumulated rain amount, are proposed to characterize these rain events processes. We investigate their dynamics property by using scale invariant and found that the long-term rain processes in central China indeed exhibit the feature of self-organized criticality. The proposed theory and method may be suitable to analyze other datasets from different climate zones in China.

scholarly journals Long-term seismogenesis and self-organized criticality

2004 ◽  
Vol 56 (8) ◽  
pp. 749-760 ◽  
Author(s):  
Frank Evison ◽  
David Rhoades
Keyword(s):  
Self Organized ◽  
Self Organized Criticality

scholarly journals Extracorporeal Support Prognostication—Time to Move the Goal Posts?

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 537
Author(s):  
Neel Shah ◽  
Ahmed S. Said
Keyword(s):  
Decision Making ◽  
Decision Support ◽  
Extracorporeal Membrane Oxygenation ◽  
Decision Support Tools ◽  
Long Term Outcomes ◽  
Future Directions ◽  
Support Tools ◽  
Extracorporeal Support ◽  
Improved Outcome

Advances in extracorporeal membrane oxygenation (ECMO) technology are associated with expanded indications, increased utilization and improved outcome. There is growing interest in developing ECMO prognostication scores to aid in bedside decision making. To date, the majority of available scores have been limited to mostly registry-based data and with mortality as the main outcome of interest. There continues to be a gap in clinically applicable decision support tools to aid in the timing of ECMO cannulation to improve patients’ long-term outcomes. We present a brief review of the commonly available adult and pediatric ECMO prognostication tools, their limitations, and future directions.

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