Kaukojäähdytyksen potentiaali ja kannattavuus Oulun keskustan alueella

Diplomityö on tehty Oulun Energian kaukolämpöosastolle. Työn tavoitteena oli selvittää kaukojäähdytyksen asiakaspotentiaali Oulun keskustan alueella sekä tehdä esiselvitys kaukojäähdytysinvestoinnin kannattavuudesta. Potentiaalin kartoituksessa otettiin huomioon sekä nykyiset rakennukset että lähitulevaisuuden lisärakentaminen. Jäähdytyskuormaksi Oulun keskustassa saatiin 28 MW, josta suurin osa on liiketiloja, toimistorakennuksia sekä hotelleja. Investoinnin kannattavuutta tutkittiin perinteisillä investointilaskennan menetelmillä. Kustannusarvio perustuu vapaajäähdytykseen ja absorptiojäähdytykseen ja tuotantolaitoksen sijoittamiseen kalliotiloihin. Tuottojen arviointia varten määriteltiin alustava kaukojäähdytystariffi sekä kolme erilaista kasvumallia. Tulosten perusteella investointi vaikuttaisi kannattamattomalta. Pääsyynä kannattamattomuuteen on kallis alkuinvestointi, jossa etenkin louhinnan osuus on merkittävä. Toisena syynä kannattamattomuuteen voidaan pitää potentiaalisten kaukojäähdytykseen liitettävien rakennusten melko pientä kokoa Oulun keskustassa.

On advancing business intelligence in the electricity retail market

In recent decades, business intelligence (BI) has gained momentum in real-world practice. At the same time, business intelligence has evolved as an important research subject of Information Systems (IS) within the decision support domain. Today’s growing competitive pressure in business has led to increased needs for real-time analytics, i.e., so called real-time BI or operational BI. This is especially true with respect to the electricity production, transmission, distribution, and retail business since the law of physics determines that electricity as a commodity is nearly impossible to be stored economically, and therefore demand-supply needs to be constantly in balance. The current power sector is subject to complex changes, innovation opportunities, and technical and regulatory constraints. These range from low carbon transition, renewable energy sources (RES) development, market design to new technologies (e.g., smart metering, smart grids, electric vehicles, etc.), and new independent power producers (e.g., commercial buildings or households with rooftop solar panel installments, a.k.a. Distributed Generation). Among them, the ongoing deployment of Advanced Metering Infrastructure (AMI) has profound impacts on the electricity retail market. From the view point of BI research, the AMI is enabling real-time or near real-time analytics in the electricity retail business. Following Design Science Research (DSR) paradigm in the IS field, this research presents four aspects of BI for efficient pricing in a competitive electricity retail market: (i) visual data-mining based descriptive analytics, namely electricity consumption profiling, for pricing decision-making support; (ii) real-time BI enterprise architecture for enhancing management’s capacity on real-time decision-making; (iii) prescriptive analytics through agent-based modeling for price-responsive demand simulation; (iv) visual data-mining application for electricity distribution benchmarking. Even though this study is from the perspective of the European electricity industry, particularly focused on Finland and Estonia, the BI approaches investigated can: (i) provide managerial implications to support the utility’s pricing decision-making; (ii) add empirical knowledge to the landscape of BI research; (iii) be transferred to a wide body of practice in the power sector and BI research community.

Scandinavia and its confines, in which are the Kingdoms of Sweden, Denmark, and Norway, divided into their principall provinces viz. Under the crown of Sweden, those of Gothland, Sweden, Lapland, Finland, Ingria, and Livonia; Under the crown of Denmark, those of Jutland, Sleswick, Zealand, Fyonie, &c. In Denmark those of Agger, Dronthem, and Wardhous, in Norway /

1 kartta :, käsinvär. ;, 56,4 x 86,7 cm, lehti 62,5 x 91,5 cm

The multicultural moment : the history of the idea and politics of multiculturalism in Sweden in comparative, transnational and biographical context, 1964–1975

The emergence of the idea of multiculturalism in Swedish public discourse and social science in the latter half of the 1960s and introduction of official multiculturalism in 1975 constituted a major intellectual and political shift in the post-war history of Sweden. The ambition of the 1975 immigrant and minority policy to enable the preservation of ethno-cultural minorities and to create a positive attitude towards the new multicultural society among the majority population was also incorporated into Swedish cultural, educational and media policies. The rejection of assimilationism and the new commitment to ethno-cultural diversity, the multicultural moment, has earned Sweden a place on the list of the early adopters of official multiculturalism, together with Canada and Australia. This compilation thesis examines the origins and early post-war history of the idea of multiculturalism as well as the interplay between idea and politics in the shift from a public ideal of homogeneity to an ideal of multiculturalism in Sweden. It does so from a range of conceptual, comparative, transnational, and biographical perspectives. The thesis consists of an introduction (Part I) and four previously published studies (Part II). The primary research result of the thesis concerns the agency involved in the break-through and formal establishment of the idea of multiculturalism in Sweden. Actors such as ethnic activists, experts and officials were instrumental in the introduction and establishment of multiculturalism in Sweden, as they also had been in Canada and in Australia. These actors have, however, not previously been recognized and analysed as significant idea-makers and political agents in the case of Sweden. The intertwined connections between activists, social scientists, linguists, and officials facilitated the transfer of the idea of multiculturalism from a publically contested idea to public policy via the way of The Swedish Trade Union Confederation, academia and the Royal Commission of Immigration. The thesis furthermore shows that the political success of the idea of multiculturalism, such as it was within the limits of the universalist social democratic welfare state, was dependent on whom the claims-makers were, the status and positions they held, and the way the idea of multiculturalism was conceptualised and used. It was also dependent on the migratory context of labour immigration in the 1960s and 1970s and on whose behalf the advocates of multiculturalism made their claims. The majority of the labour immigrants were Finnish citizens from the former eastern half of the kingdom of Sweden who were net contributors to the Swedish welfare state. This facilitated the recognition of their ethno-cultural difference, and, following the logic of universalism, the ethno-cultural difference of other minority groups in Sweden. The historical significance of the multicultural moment is still evident in the contemporary immigration and integration policies of Sweden. The affirmation of diversity continues to set Sweden apart from the rest of Europe, now more so than in the 1970s, even though the migratory context has changed radically in the last 40 years.

Site index curves for European aspen ( Populus tremula L.) growing on forest land of different soils in Sweden

Summary

Electrofusion of protoplasts of anther-derived dihaploid lines of commercial potato cultivars

Selostus: Perunalajikkeiden ponsiviljelyllä tuotettujen dihaploidien protoplastien sähköfuusio