We suggest a general method of the construction of secret-sharing schemes based on orthogonal systems of partial (in particular, everywhere determined) k-ary operations which generalizes some known methods of the construction of such schemes by a nite elds and point the orthogonal systems of k-ary operations respecting to these known schemes. The di erent transformations of orthogonal systems o...

The construction of polygonal meshes remains a complex task in Computer Graphics, taking tens of thousands of individual operations over several hours of modeling time. The complexity of modeling in terms of number of operations and time makes it difficult for artists to understand all details of how meshes are constructed. We present MeshFlow, an interactive system for visualizing mesh constru...

This paper illustrates how general-purpose simulation and visualization tools primarily designed to study construction operations can be effectively used to model and animate vehicular traffic flows in urban transportation networks. A high-fidelity simulation model and a corresponding 3D visualization describing traffic flow at a busy 3-way signalized intersection are presented. The model and a...

The purpose of this paper is to review recent developments to use RFID (Radio Frequency Identification) for supply chain logistics in the construction industry and identify potential applications of this technology for disaster recovery in construction operations. Natural disasters, terrorist attacks, and extreme weather conditions can cause significant damage to local communities and disruptio...

 International construction companies have settled in Africa and especially Nigeria, to compete for infrastructural projects, in a bid to extend their services across their borders. The trans-border extension of the services offered by these international multi-nationals exposes them to the political risk factors pertinent with the host country. In order to survive the harsh realities of the po...

    Dynamic cellular manufacturing systems,   Mixed-integer non-linear programming,   Production planning, Manufacturing attributes   This paper presents a novel mixed-integer non-linear programming model for the design of a dynamic cellular manufacturing system (DCMS) based on production planning (PP) decisions and several manufacturing attributes. Such an integrated DCMS model with an extensi...

Purpose Site supervision features largely influence the productivity status of construction operational processes. This study aims to use a case containing mixed methods test site supervisory traits in applying mathematical theories operations for directing capabilities under various characteristics. Design/methodology/approach A total 62 supervisors were trained as part new apprenticeship prog...