In order to research global collaborative applications among nations, a high performance global network like GLORIAD is indispensable. KISTI is a member of GLORIAD and has built, operated and maintained GLORIAD-KR which is a part of GLORIAD in Korea. KRLIGHT based on GLORIAD-KR is one of the GOLEs, lambda's exchange point of GLIF, in Korea. KRLIGHT connects to 12 international partners that are made up of three GOLEs, four NRENs and four research organizations. Researchers who request dedicated network service internationally can use global lightpaths that provisioned dynamically or manually for their advance scientific applications over GLORIAD-KR and KRLIGHT. KISTI has supported several demonstrations for advanced applications and test-beds that are using global lightpaths provisioned: HPDMnet, Astronomy Application, High Energy and Nuclear Physics, Medical Application, etc. KISTI will continuously contribute to more collaborative scientific researches and global applications.
Reverse engineering, the process of obtaining a geometric CAD model from measurements obtained by scanning an existing physical model, is widely used in numerous applications, such as manufacturing, industrial design and jewellery design and reproduction. For creating editable CAD models meant for manufacturing we identify that it is more appropriate to use feature-based constraint-based representations, since they capture plausible design intent. We propose this type of model representation for reverse engineering 3D point clouds of jewellery objects. In this paper we propose an approach for reverse engineering of jewellery combining skeleton construction, feature and constraint information exploitation to obtain a more robust and accurate CAD model. First we automatically construct the skeleton of the point cloud. Constraints are automatically detected based on the skeleton and then an iterative interactive process is carried out, during which features are fitted to the point cloud according to constraints. A voxel inspired technique is also employed to describe repeated patterns common to various types of traditional jewellery.
In high performance computational environments, communication stands out as the major limiting factor to performance. However, high speed network infrastructures are constructed and high speed data transfer protocols, such as BIC TCP and UDT, are capable of transferring the data at the speed of 6-7Gbps. Despite these circumstances, normal PC users, still have difficulties transferring bulk data in lGbps network. In this paper we try to find out performance limiting factor in end systems. First of all, we investigate the performance effect according to types of NIC and we characterize the current capabilities of PCI, PCI-X and PCI-E Gigabit Ethernet Interfaces and identify requisite components for optimal performance.
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