Spatial dynamics: Classical problems, an integrated modelling approach and system performance

1985 ◽  
Vol 58 (1) ◽  
pp. 47-57 ◽  
Author(s):  
A. G. Wilson
2020 ◽  
Vol 34 (13) ◽  
pp. 3967-3984
Author(s):  
Runjie Li ◽  
Jinkang Du ◽  
Guodong Bian ◽  
Yuefeng Wang ◽  
Changchun Chen ◽  
...  

Author(s):  
Joseph Ajaefobi ◽  
Aysin Rahimifard ◽  
Richard Weston

Enterprises (business organisations) are increasingly operating under uncertain conditions arising from: governments that introduce new regulations; a market place which is shaped by ongoing change in customer requirements; change in capital markets that orient overall market directions; an advancing base of technology; and increasing competition which can arise from a growing number of sources (Monfared, 2000). Consequently, organisations are expected to change rapidly in response to emerging requirements. Classical theories and more recently ‘method-based’ organisation (re)design and change approaches have been proposed and tried with varying degrees of successes. This chapter contribution discusses the role of enterprise and simulation modelling in support of organisation (re)design and change. The capabilities and constraints of some widely acknowledged public domain enterprise modelling frameworks and methods are reviewed. A modelling approach which integrates the use of enterprise modelling (EM), causal loop modelling (CLM), and simulation modelling (SM) is described. The approach enables the generation of coherent and semantically rich models of organisations. The integrated modelling approach has been applied and tested in a number of manufacturing enterprises (MEs) and one case study application is described.


2011 ◽  
Vol 87 (03) ◽  
pp. 367-381
Author(s):  
Stewart Elgie ◽  
Geoffrey R. Mccarney ◽  
Wiktor L. Adamowicz

Canada's forests —particularly the boreal—are a major storehouse of carbon. How they are managed could significantly affect Canada's greenhouse gas emissions while also presenting a new revenue source for forest managers. This study attempts to assess how a carbon price could affect forest management, particularly in Canada's boreal plains region. An integrated modelling approach is developed to incorporate both forest carbon and timber supply considerations within an optimal management framework. This modelling approach allows for consideration of alternative market and regula tory scenarios, along with a range of possible management intensity and harvest scheduling options over the landscape. The overall conclusion is that carbon incentives will increase the value of the boreal forest—potentially quite signifi cantly— and will generally encourage management changes consistent with sustainable forest management practices.


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