What is complexity governance and how can this be implemented in a world complexity observatories grid?

by Andrés Ginestet

What is complexity governance and how can this be implemented in a world complexity observatories grid?
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Complexity and Information: Measuring Emergence, Self-organization, and Homeostasis at Multiple Scales

by Nelson Fernández

Co-authored with Carlos Gershenson. Submitted to Complexity.

Concepts used in the scientific study of complex systems have become so widespread that their use and abuse has led to... more

Inquiry on the Expected Synergy between the: Quatro-Construct Reducing Trauma, Enhancing Empathy, Guiding Epigenetics, Governing Complexity and Triad Generosity - Creativity - Solidarity

by Andrés Ginestet

This document illustrates how complexity theory linked to the violence theory of Andrés Ginestet is being integrated into general research

Generosity is supposed to be a related deeper turning point. An equivalent type of statement may be referred to... more

Student perceptions of the higher education transfer process from two-year to four-year institutions: A qualitative study viewed through the lenses of student departure, social network, and complexity theories

by Kevin Kelly

Doctoral dissertation, University of San Francisco, 2009 - published as a free and open document - do not pay for it!

This qualitative study explored higher education transfer student perceptions of (a) the transfer process between two-... more

Comparing the Complexity of Two Network Architectures

by Olivier Zheng

MSc dissertation written under the supervision of Dr Basu and Mr Behringer

A Service Provider has different methods to provide a VPN service to its customers. To do it, the Service Provider can... more

La publicidad como sistema complejo y su incidencia en una semiótica productiva

by Antonio Caro

Texto de la ponencia al VII Congreso Internacional de la Asociación Internacional de Estudios Semióticos (IASS), Dresde, octubre de 1999.

Towards a Method for Service Design

by Olga Levina

Services are the vital part of a service-oriented architecture. Their development and design are essential parts of... more

Mekansal Okunabilirlik Kavramının Çözümlenmesi (Analysing the Concept of Spatial Legibility)

by Emine Koseoglu

Paper in Turkish

Authors: Emine Koseoglu and Deniz Erinsel Onder
Yapı Journal, June 2010, Issue 343, pp.52-56.

Abstract

When the concept of spatial legibility is defined as an observation, seeing, understanding,... more

On constructing a research model for historical cognitive linguistics (HCL): Some theoretical considerations

by Roslyn Frank

Full citation reference:

Frank, Roslyn M. & Nathalie Gontier. 2010 "On constructing a research model for historical cognitive linguistics (HCL): Some theoretical considerations." In Winter, M.E., Tissari, H. & Allan, K. (eds). Historical cognitive linguistics, pp. 31-69. Berlin: Mouton de Gruyter. (Book series: Cognitive Linguistics Research, nr 47)

This paper is the uncorrected proof.

This paper examines how historical cognitive linguistics can benefit methodologically through the application of the... more

"The Icon as a Problem in Cognition and Social Construction: Complexity and Consensual Domains in Technical Rhetoric."

by Martin E. Rosenberg

M. Jimmie Killingsworth and Martin E. Rosenberg. _IEEE Transactions on Professional Communication_ Volume 38 Number 4; December 1995, 216-227. ISSN: 0361-1434

Abstract:
This paper suggests that current theories about how even the
simplest elements of graphical... more

Complexity study - Call for interest – Academic package

by David MARTIN

The WCF ( www.wcforum.org ) is proud to present, through the partnerships with Ontonix, it’s academic package :

Our partner, Ontonix ( www.ontonix.com ) through the WCF propose a full academic package to universities interested to use their complexity technology and methodology for new or existing cases study.

The package enclose :

- 80% rebate on the license price
- Free training
- Participation to research, thesis and papers
-                    And more ...

Case studies have already started within the following sectors :

- Treatment of vegetable biomasses
- Rock Blasting
- Heart failure
- Cerebral Aneurysms
- Project Management
- Engineering
- Supply chain
- Business Process Management
- Portfolio Management

The following universities are already working with the WCF and Ontonix :

- ETHZ in Zurich, Switzerland
- ZHAW in Winterthur, Switzerland
- Politecnico di Milano, Italy
- University of São Paulo, Brazil
- The Capital University of Business and Economics, China
- University of Pretoria, South Africa
- SAICA, South Africa
- US Army Institute of Medical Research, United States
- University of Michigan Health System, United States

In case of Interest, feel free to contact me directly.

WCF
David MARTIN
dmartin@wcforum.org

BLASTING FRAGMENTATION MANAGEMENT USING COMPLEXITY ANALYSIS

by David MARTIN

Rock fragmentation due to blasting operations is the key result of aggregates and ore mining activity before plant treatment. It has been observed in many case studies (e.g. Sastry & Chandar 2004, Ryu et al. 2009, Clerici & Mancini et al. 1974) that power consumption of loading machineries and crushers operating on the site and of primary crusher operating on the plant depends on the ratio of desired fragmentation obtained from the blast. On the other side, a lower ratio of fragmentation decreases the primary blasting costs (Ryu et al.).

Poor fragmentation results lead to (Bozic 1998, Sastry & Chandar 2004, Ryu et al. 2009, Clerici & Mancini et al. 1974):

- increased secondary blasting
- increased rate of muck shovel loading
- increased difficulty in transport
- increased energy consumption at crushing or milling
- low crusher or mill performances

On the other hand, when operating on fragmentation results in order to reduce secondary blast or other kind of secondary fragmentation before crushing, primary blast costs and drilling costs increase (Ryu et al. 2009), making the efficiency of the mine site workings decrease.

When secondary blasting is avoided or reduced to its minimum in order to increase mine site working efficiency, the amount of cost related to the reduction of dimension of blocks is transferred to crushing or milling, reducing its efficiency and increasing its costs.

McKenzie’s study (1967) is nowadays a classical analysis that showed how loading, hauling and crushing costs decreased with increasing rock fragmentation while drilling and blasting costs increased with increasing rock fragmentation.

The requirement of both efficiency and cost has to be properly managed.

This research intends to analyse mining operations and plant crushing and find an appropriate way to obtain a high constancy in blast fragmentation results under highly variable environment, improving the robustness of blast fragmentation models and to set a robust method to design the blast in order to grant the productivity of the crushing/milling process.

The present paper is the first stage of this ongoing research.

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