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All service control nodes can be modelled as a server system with one or more servers processing incoming requests. In this paper we show how non-linear control theory may be used when analyzing admission control mechanisms for server systems. Two models are developed, one linear and one non-linear. We show that, due to the non-linearities appearing in a real server system, linear control theory i
A number of CCS-technologies are currently being developed for the reduction of CO2 emissions from thermal power stations. One such technology is the oxyfuel process, in which a mixture of CO2 and steam is used as the working medium. The semi-closed oxyfuel combustion combined cycle (SCOC-CC) is an oxyfuel cycle where the working medium mainly consists of CO2 (85-95%). Current practice is to desig
I denna text vill jag göra tre poänger: 1) internet är idag och kommer över överskådlig tid att vara ett oerhört viktigt fält för forskning och datainsamling inom samhällsvetenskapen; 2) det finns en rad olika problem – metodmässiga, ekonomiska och etiska – med datainhämtning i stor skala; 3) det etiska regelverket för denna typ av forskning är i Sverige outvecklat och måste ses över.
Mina slutsatser är att Gustaf Aulén, som ännu sommaren 1933 ställde sig positivt avvaktande till nyordningen i den tyska rikskyrkan, ändrade sin position till den tyska kyrkostriden först på grund av Anders Nygrens offentliga kritik mot nationalsocialismen 1933–34, sedan även på grund av ekumeniska kontakter, enkelt uttryckt: Aulén var inte ”hela tiden” motståndskämpe, han blev det, främst genom N
Introduction to anthology on the interrelations of the arts.
It is argued that all forms of self-reference or autonomy are linguistic phenomena (under a general complementaristic conception of language). Autonomies do not naturally occur in non linguistic domains, like classical physics with its mechanistic modellings. However, in quantum physics, where language is beginning to enter the physical domain, as exemplified in Bohr´s notion of complementarity, s
The underpinning idea of extended producer responsibility rules has been to provide incentives for manufacturers to design products that are easy to recycle. However, current incentives for design for recycling are limited, due to the problems in assigning costs for collection and recycling of individual products to the relevant producers. An alternative way to promote design for recycling, or to
