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Investigates the accuracy of using fire Dynamics equations in tunnel fire Safety risk analysis

The ac frequency in electrical power systems is conventionally regulated by synchronous machines. The gradual replacement of these machines by asynchronous renewable-based generation, which provides little or no frequency control, increases system uncertainty and the risk of instability. This imposes hard limits on the proportion of renewables that can be integrated into the system. In this paper,

Many countries strive for continued reductions in energy demand from new buildings as a way of mitigating the impact of climate change. Consequently, the importance of accurate and efficient building performance simulations (BPS) increases to improve the prediction in energy demand during the design-process for buildings. As observed in earlier studies, there is currently a performance gap between

Denna rapport kartlägger vilken form av finanspolitiskt ramverk som bäst kan undvika de mekanis- mer som idag hotar den finansiella stabiliteten i euroområdet. Diskussionen bygger på en gransk- ning av de fiskala relationerna mellan den federala och delstatliga nivån i fyra federala stater: Argentina, Brasilien, Kanada och USA. En jämförelse mellan de fyra staterna visar på en tydlig skillnad. De

The requesting symbol (10) displayed in electronic document relating to specific information is sent as request message by user along with information identifier and receiving address to distributing system (3). The system (3) searches for specific information via network from database (4-6) corresponding to information identifier and received data is sent to indicated information receiving addres

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Reduced emissions and environmental burden from shipping are an important aim of tightening emission regulations and ambitious climate change strategy. Renewable methanol produced from biomass or from other renewable sources represents one option to face these challenges. We studied the potential of renewable methanol to offer such benefits in diesel operation in a Scania ethanol engine, which is

The Swedish Reference Group for Antiviral Therapy (RAV) published recommendations for the treatment of HIV infection in this journal most recently in 2017. An expert group under the guidance of RAV here provides updated recommendations. The most important updates in the present guidelines are the following: (a) The risk of HIV transmission through condomless sex from individuals with fully suppres

Due to rapid development of bacterial resistance against antibiotics, an emerging health crisis is underway, where ‘simple’ infections may no longer be treatable. Antimicrobial peptides (AMPs) constitute a class of substances attracting interest in this context. So far, research on AMPs has primarily focused on the identification of potent and selective peptides, as well as on the action mode of s

Pathogenic mutations in presenilin 1 (PS1) are associated with ≃50% of early-onset familial Alzheimer disease. PS1 is endoproteolytically cleaved to yield a 30-kDa N-terminal fragment (NTF) and an 18-kDa C-terminal fragment (CTF). Using COS7 cells transfected with human PS1, we have found that phorbol 12,13-dibutyrate and forskolin increase the state of phosphorylation of serine residues of the hu

Interesting approaches to counteract performance variability within cloud datacenters include sending multiple request clones, either immediately or after a specified waiting time. In this paper we present a performance model of cloud applications that utilize the latter concept, known as speculative execution. We study the popular Join-Shortest-Queue load-balancing strategy under the processor sh

The inorganic metal or metal-oxide nanoparticles (NPs) that mimic enzymes are of great interest due to improved physical and chemical properties compared with native enzymes. Here, we report that manganese dioxide (MnO2)-Silk exhibit catalase, oxidase, and peroxidase-like activities. The MnO2-Silk hybrid fibers effectively decomposed hydrogen peroxide (H2O2) and oxidized the typical horseradish pe