Reducing green-house gases emission from light-duty vehicles is compulsory in order to slow down the climate change. The application of High Frequency Ignition systems based on Corona discharge effect has shown potential extend dilution limit engine operating conditions promoting lower temperatures and faster combustion events, thus, higher thermal indicating efficiency. Furthermore, predicting...

Wood biomass fuels have become increasingly important in terms of achieving future sustainability targets regarding RES, especially to reduce GHG and the use domestic energy sources, on other hand with these pulutant air emissions be addressed great attention. Nowadays, staging flue gas recirculation are often used as a primary emission reduction measure large scale fuel fired boilers, but thei...

Analysis of the current state nutrient stocks, flows, and balances a territory is necessary to inform strategies that can transition agri-food sector circular economy model. In this study, we quantified nitrogen phosphorus budgets for Bolivian system at national regional scales by way agro-ecological zoning. We performed calculate indicators sufficiency (extent deficit/surplus) circularity (pro...

Hydroponically grown microgreens are gaining in popularity, but there is a lack of information pertaining to their microbiological safety. The potential risks associated with virus contamination of crops within a hydroponic system have not been studied to date. Here a human norovirus (huNoV) surrogate (murine norovirus [MNV]) was evaluated for its ability to become internalized from roots to ed...

A discrete-time communication framework is studied under an approximate socalled "stop protocol" related to the lost-calls-held protocol. An explicit insensitive product form expression as recently obtained under a less realistic recirculated protocol is shown to remain valid. This extension seems of both practical and theoretical interest. Applications include: • Circuit switching structures •...

Leachates produced at the La Zoreda landfill in Asturias, Spain, were recirculated through a simulated landfill pilot plant. Prior to recirculation, three loads of different amounts of Municipal Solid Waste (MSW) were added to the plant, forming in this way consecutive layers. When anaerobic digestion was almost completed, the leachates from the landfill were recirculated. After recirculation, ...

During the last decade extensive research has been made at Lund University, Sweden, on a lean premix (prevaporize) combustion concept with burnt gas recirculation and a metallic flame holder. From this concept a new lean premixed natural gas combustion chamber with internal combustion gas recirculation (CGR) has been developed for the V160/SOLO 161 Stirling engines. This combustor has ultra-low...