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Integration of WWT Plant Design and Operation - a Systematic Approach Using Cost Functions

A general framework for the formulation and analysis of an overall decision support index is discussed. It is indicated that such an index allow evaluation of the combined effects of both design and operation (i) during the planning phase of new WWTPs, as well as (ii) for the evaluation of new operational strategies versus traditional expansions of plants already in operation. Attention is drawn t

Ur det förflutnas skuggor - historiediskurs och nationalism i Tyskland 1990-2000

Popular Abstract in Swedish Föreställningen om att det fanns ett vänsterliberalt åsiktsmonopol som måste brytas var central när kristdemokraten Helmut Kohl som nybliven förbundskansler 1982 utlovade en ”intellektuell och moralisk vändpunkt”. Den tyska nationalkänslan skulle ”normaliseras”. Det negativa förflutna skulle neutraliseras. I avhandlingen skildras hur detta pund förvaltades under 1990-taThe subject of this study is the re-construction of German national identity and nationalist thinking within the framework of the 1990s’ history discourse in relation to the Nazi past and the Holocaust. The empirical focus is on national politics and the press. Maurice Halbwachs’ social constructionist theory on collective memory and Jan Assmann’s thesis on the defining power of elites in the cult

Nationell implementeringsplan för IKT i matematikundervisningen

Detta är det första av tre inlägg för att ge perspektiv på IKT i matematik- undervisningen. Bakgrunden till inlägget är en nyligen släppt rapport från Skolverket, som visar att användningen av IKT är i stort sett lika låg i flera ämnen, som den var för tre år sedan. Det är, enligt rapporten, fortfarande ovanligt att eleverna använder datorer på lektioner i matematik. Det finns inte heller någon ty

The agricultural revolution and the conditions of the rural poor, southern Sweden 1750–1860

The social consequences of agrarian change have been widely debated. The traditional view of the lower classes becoming increasingly vulnerable due to the loss of access to resources has been met with the revisionist view that this change was counteracted by an increase in the volume and regularity of employment due to investments and new farming practices. This article address this issue by study

Dissolved oxygen controller based on on-line measurements of ammonia combining feed-forward and feedback

As the largest single energy-consuming component in most biological wastewater treatment systems, control of aeration is of great interest seen from an energy savings point of view. This paper suggests a simple way of using on-line ammonium measurements to control aeration in a pre-denitrification plant by controlling the dissolved oxygen setpoint. The controller works primarily by feed-forward ba

RIFM fragrance ingredient safety assessment, α-irone, CAS registry number 79-69-6.

The use of this material under current use conditions is supported by the existing information. This material was evaluated for genotoxicity, repeated dose toxicity, developmental toxicity, reproductive toxicity, local respiratory toxicity, phototoxicity, skin sensitization potential as well as environmental assessment. Repeated Dose Toxicity was determined to have the most conservative systemic e

Could audiovisual training be used to improve cognition in extremely low birth weight children?

Aim: To study whether a dyslexia remediation programme, Audilex, improves cognition in extremely low birth (ELBW) children. Methods: Six-year-old ELBW children were allocated to a 5-week training with Audilex or playing control computer games. Before and after intervention, auditory event-related brain potentials (ERP) to sound changes were recorded and reading related skills assessed. Primary out

Interoperating AliEn and ARC for a Distributed Tier1 in the Nordic Countries

To reach its large computing needs, the ALICE experiment at CERN has developed its own middleware called AliEn, centralised and relying on pilot jobs. One of its strength is the automatic installation of the required packages. The Nordic countries have offered a distributed Tier-1 centre for the CERN experiments, where the job management should be done with the NorduGrid middleware ARC. We have de

Strukturmekanik - Modellering och analys av ramar och fackverk

Strukturmekanik är den del av fysiken som beskriver hur olika material, som formats och sammanfogats till strukturer, bär sina laster. Kunskapen om dessa strukturers verkningssätt kan användas i en skapande process där hållbara och effektiva, funktionella och uttrycksfulla byggnadsverk utformas. Den här läroboken i strukturmekanik baseras på finita elementmetodens metodik. Förståelsen för struktu