Sökning: "lifetime cost"
Visar resultat 11 - 15 av 149 avhandlingar innehållade orden lifetime cost.
11. Centralized Routing for Prolonged Network Lifetime in Wireless Sensor Networks
Sammanfattning : In this thesis centralized routing methods for wireless sensor networks have been studied. The aim has been to prolong network lifetime by reducing the energy consumed by sensor-node communication.Wireless sensor networks are rapidly becoming common in application areas where information from many sensors is to be collected and acted upon. LÄS MER
12. Essays on Transport Economics
Sammanfattning : Essay 1: The wear and tear of an extra vehicle that uses a road results in advancementof future repavements. This increases the present value cost of these repavements, which is interpreted as the marginal cost. LÄS MER
13. Energy Saving vs. Performance: Trade-offs in Optical Networks
Sammanfattning : The energy consumption of communication networks is continuously growing. Many energy saving approaches have been proposed at the device, system, and network level. The most promising way to address this problem is to utilize photonic technologies as much as possible thanks to their low energy consumption per bit performance. LÄS MER
14. Using Existing Infrastructure as Support for Wireless Sensor Networks
Sammanfattning : Denna avhandling handlar om hur befintliga datorinfrastrukturer i t.ex. sjukhus och industrier kan avlasta sensornätverk med energikrävande uppgifter. Vi har forskat på olika aspekter som gör det möjligt att förlänga livslängden på dessa sensornätverk. LÄS MER
15. Reliability and Life Cycle Cost Modelling of Mining Drilling Rigs
Sammanfattning : In the context of mining, drilling is the process of making holes in the face and walls of underground mine rooms, to prepare those rooms for the subsequent operation, which is the charging process. Due to the nature of the task, drilling incurs a high number of drilling rig failures. LÄS MER