Opportunistic Capacity-Based Resource Allocation for Chunk-Based Multi-copyright Cognitive Radio Sensor Networks

The spectrum allocation for cognitive radio sensor networks (CRSNs) has received considerable research attention under the assumption that the spectrum environment is static.However, in practice, the spectrum environment varies over time due to primary user/secondary user (PU/SU) activity and mobility, resulting in time-varied spectrum resources.Th

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Fabrication of Zirconia Abutment Crown and Clasp Under Existing Removable Partial Denture Using CAD/CAM Technology

Akinori Tasaka,1 Takahiro Shimizu,1 Takeshi Hirabayashi,2 Shuichiro Dryer Filter Spigot Yamashita1 1Department of Removable Partial Prosthodontics, Tokyo Dental College, Tokyo, Japan; 2Dental Laboratory of Suidobashi Hospital, Tokyo Dental College, Tokyo, JapanCorrespondence: Akinori TasakaDepartment of Removable Partial Prosthodontics, Tokyo Denta

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