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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
101

A simplex based computational procedure for the maximal multi-transformed network flows problem /

Mavrogenis, Paris. January 1975 (has links)
No description available.
102

A coal mining community in late nineteenth-century Shropshire : frontier settlement or close-knit community?

Ensum, Jan January 2000 (has links)
No description available.
103

Performance assessment in water supply and distribution

Coelho, Sergio Carvalho de Matos Teixeira January 1996 (has links)
No description available.
104

Minimal cost flows in networks with transformations, byproducts, convex and concave costs

Emmanuelidis, John A. January 1975 (has links)
No description available.
105

Optimal number and placement of network infrastructure in wireless networks

Kouhbor, Shahnaz January 2007 (has links)
Wireless Local Area Networks (WLANs) have become a major success in telecommunications during the last few years, due to advantages such as mobility, flexibility, and easier maintenance. A device called an access point (AP) acts as a base station in WLAN for connecting a group of users to the network via radio signal. During the planning of such a network an important problem is to determine the optimal number of these devices and their placement/distribution so that coverage, capacity, and physical security are maximised at minimum cost. In this thesis we are using continuous optimisation techniques to optimise the number of APs and their distribution while cost of deployment is reduced and physical security of the network is enhanced. To find the number and placement of APs, we developed a multi-objective functions model based on path losses and power for free space environments. The two functions in the models are combined by using a balancing parameter. Since it is recognised that some of the objectives can be handled one at a time, in another approach, we followed a step-by-step procedure. We start with a novel optimisation model based on path losses for indoor environments including obstacles. Cost of deployment is saved by finding the minimum number of APs ensuring that the path loss at each test point/receiver is below the given maximum path loss. Next, the physical security of the network is enhanced by placing the APs far from places accessible to unauthorised users to reduce the risk of intrusion into the network. This is achieved in the framework of the model by introducing potential unauthorised users in unauthorised areas for whom coverage is minimised. Due to the presence of obstacles in indoor buildings, the path loss function is discontinuous. Therefore, the objective functions are very complicated and most of the existing optimisation algorithms cannot be applied to solve the problem. We use a global optimisation algorithm that is not used by other researchers to solve the same problem. To validate the accuracy of the optimisation model and performance of the numerical methods, we run tests on several indoor buildings and use wide range of WLAN parameters. The results demonstrate the quality of our model and algorithm. Based on the proposed model and algorithm, we developed a software to assist the network designers in planning wireless LANs. / Doctor of Philosophy
106

Application of network analysis method in film production /

Siddiqui, A. Wadood. Unknown Date (has links)
Thesis (MAppSc in Project Management)--University of South Australia, 1995
107

Optimal number and placement of network infrastructure in wireless networks

Kouhbor, Shahnaz . University of Ballarat. January 2007 (has links)
Wireless Local Area Networks (WLANs) have become a major success in telecommunications during the last few years, due to advantages such as mobility, flexibility, and easier maintenance. A device called an access point (AP) acts as a base station in WLAN for connecting a group of users to the network via radio signal. During the planning of such a network an important problem is to determine the optimal number of these devices and their placement/distribution so that coverage, capacity, and physical security are maximised at minimum cost. In this thesis we are using continuous optimisation techniques to optimise the number of APs and their distribution while cost of deployment is reduced and physical security of the network is enhanced. To find the number and placement of APs, we developed a multi-objective functions model based on path losses and power for free space environments. The two functions in the models are combined by using a balancing parameter. Since it is recognised that some of the objectives can be handled one at a time, in another approach, we followed a step-by-step procedure. We start with a novel optimisation model based on path losses for indoor environments including obstacles. Cost of deployment is saved by finding the minimum number of APs ensuring that the path loss at each test point/receiver is below the given maximum path loss. Next, the physical security of the network is enhanced by placing the APs far from places accessible to unauthorised users to reduce the risk of intrusion into the network. This is achieved in the framework of the model by introducing potential unauthorised users in unauthorised areas for whom coverage is minimised. Due to the presence of obstacles in indoor buildings, the path loss function is discontinuous. Therefore, the objective functions are very complicated and most of the existing optimisation algorithms cannot be applied to solve the problem. We use a global optimisation algorithm that is not used by other researchers to solve the same problem. To validate the accuracy of the optimisation model and performance of the numerical methods, we run tests on several indoor buildings and use wide range of WLAN parameters. The results demonstrate the quality of our model and algorithm. Based on the proposed model and algorithm, we developed a software to assist the network designers in planning wireless LANs. / Doctor of Philosophy
108

The hidden hand and the fluid object : craft in three sites of representation

Ellis, Donald William January 2004 (has links)
Craft's role in its traditional sites is changing. Using Actor-network theory the thesis explores this contention in three sites of craft representation, a craft organisation, a university craft workshop and a craft exhibition. It was found that although craft remained in the operations and practices of these sites it was transformed contextually to perform roles beyond the skills of the hand and the material limits of the object. The research, summed up as The Hidden Hand and the Fluid Object, is significant for craft organisation, craft education and museum administration. The thesis also expands the applications of Actor-network theory as a research tool beyond its roots in science. / thesis (PhDEducation)--University of South Australia, 2004.
109

A tool for comparing costs of conveyor network layouts

Aliwarga, Ivan Sutopo. January 2001 (has links)
Thesis (M.S.)--Ohio University, August, 2001. / Title from PDF t.p.
110

The hybrid method of network analysis and topological degree of freedom

Gao, Shunguan. January 1982 (has links)
Thesis (M.S.)--Ohio University, March, 1982. / Title from PDF t.p.

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