Visar resultat 1 - 5 av 6619 avhandlingar innehållade ordet efficient.
Sammanfattning : .... LÄS MER
Sammanfattning : With continuously increasing demands for wireless connectivity, higher carrier frequencies and wider bandwidths are explored. To overcome a limited transmit power at these higher carrier frequencies, multiple input multiple output (MIMO) systems, with a large number of transmitters and antennas, are used to direct the transmitted power towards the user. LÄS MER
3. Energy Efficient Vehicle Policy: Lessons Learnt : An analysis of the effects of incentive policies on the demand, usage and pricing of energy efficient vehicles
Sammanfattning : Encouraging the uptake of energy efficient vehicles (EEVs) is an aspiration of critical importance in a day and age in which we are confronted with the increasingly dire consequences of human behaviour on our planet, and on the planet for generations to come. The transport sector is one of the highest contributors of anthropogenic greenhouse gas emissions, whilst pollution from this sector is responsible for a large proportion of human deaths each and every year. LÄS MER
4. Support for the conceptual design stage of effective and resource-efficient offerings : A pragmatic and cross-disciplinary approach
Sammanfattning : Human activities in the form of production and consumption have increased to an all-time high. In many cases, this increase has resulted in environmental problems such as waste and pollution that, in turn, affect our health and way of living. Societies have proposed different measures to address such environmental problems. LÄS MER
Sammanfattning : Radio frequency identification (RFID) systems come in different flavours; passive, active, semi-passive, or semi-active. Those different types of RFID are supported by different, internationally accepted protocol standards as well as by several accepted proprietary protocols. LÄS MER