The unsteady flow of a visco-elastic Maxwell fluid through a rectilinear pipe having its cross-section as a parallelogram under the influence of a axial pressure gradient (I) varying linearly with time , and (II) decreasing exponentially with time has been discussed in the present paper. Variables separable and Laplace transform methods have been used to solve the problem.  

This paper describes a study of automatic uid pipe route design using Genetic Algorithms (GAs). The pipe route generation process is deened as an optimization problem, based on viewing it as a variant of the Minimal Rectilinear Steiner Tree Problem (MRStT), Gib84], Jul93]. GAs were used for the optimization, and gave promising results. Other optimization methods were used for comparison. Result...

Tata letak fasilitas (facilities layout) merupakan sebuah tata cara pendirian pabrik untuk mendukung kelancaran proses produksi. CV Anugrah Jaya Sejahtera industri manufaktur otomotif yang memproduksi produk cutting steel pipe, bagian dari sparepart motor. Penelitian ini bertujuan merancang baru pada produksi pipe meminimalkan jarak perpindahan material dan momen perpindahan, serta adanya keing...

Given a set of obstacles and two distinguished points in the plane the problem of nding a collision free path subject to a certain optimization function is a fundamental problem that arises in many elds, such as motion planning in robotics, wire routing in VLSI and logistics in operations research. In this survey we emphasize its applications to VLSI design and limit ourselves to the rectilinea...

We present eecient algorithms for nding rectilinear collision-free paths between two given points among a set of rectilinear obstacles. Our results improve the time complexity of previous results for nding the shortest rectilinear path, the minimum-bend shortest rectilinear path, the shortest minimum-bend rectilinear path and the minimum-cost rectilinear path. For nding the shortest rectilinear...

This paper deals with the analytical modeling and control of rectilinear snake robots. During recent times snake robots have created much interest among researchers. The rectilinear pattern gait is one of the four biological snake locomotion modes. Rectilinear snakes have been widely used in rescue operations especially in rough terrains especially in narrow spaces where human intervention is n...

The rectilinear Steiner tree problem is to nd a minimum-length rectilinear interconnection of a set of points in the plane. A reduction from the rectilinear Steiner tree problem to the graph Steiner tree problem allows the use of exact algorithms for the graph Steiner tree problem to solve the rectilinear problem. Furthermore, a number of more direct, geometric algorithms have been devised for ...