Sökning: "Spatial point processes"
Visar resultat 21 - 25 av
103 avhandlingar innehållade orden Spatial point processes.
-
Författare :Alessandro Retinò; Mats André; Andris Vaivads; Bengt U. Ö. Sonnerup; Uppsala universitet; []
Nyckelord :Space and plasma physics; space physics; plasma astrophysics; plasma physics; transport processes; boundary layers; magnetic reconnection; turbulence; particle acceleration; solar system; magnetospheres; Rymd- och plasmafysik;
Sammanfattning :
Magnetic reconnection is a universal process occurring at boundaries between magnetized plasmas, where changes in the topology of the magnetic field lead to the transport of charged particles across the boundaries and to the conversion of electromagnetic energy into kinetic and thermal energy of the particles. Reconnection occurs in laboratory plasmas, in solar system plasmas and it is considered to play a key role in many other space environments such as magnetized stars and accretion disks around stars and planets under formation. LÄS MER
-
-
Författare :Tommy Georgios Zavalis; Göran Lindbergh; Mårten Behm; Yann Bultel; KTH; []
Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lithium-ion battery; modeling; electrochemical processes; impedance; polarization; performance; safety; aging; power optimized battery; litiumjonbatteri; modellering; elektrokemiska processer; impedans; polarisation; prestanda; säkerhet; åldring; effektoptimerat batteri;
Sammanfattning :
Rechargeable lithium-ion batteries have both the power and energy capabilities to be utilized in hybrid electric vehicles and other power demanding applications. However, there are obstacles primarily related to reliability in safety and lifetime. Additionally, there is still room for improvement in the battery performance. LÄS MER
-
Författare :Lydia Wistisen; Boel Westin; Göran Rossholm; Paul Tenngart; Stockholms universitet; []
Nyckelord :HUMANIORA; HUMANITIES; Young Adult Literature; Spatial studies; Urbanity; Youth Culture; Stockholm; City representations; Space; Intersectionality; The suburb; The Shopping Mall; The Street; Homelessness; The Car; The Motorcycle; Consumption; Modernity; Fashion; Ungdomslitteratur; rumsteori; urbanitet; ungdomskultur; Stockholm; stadsskildringar; rummet; intersektionalitet; förorten; miljonprogrammet; varuhuset; mellanöl; gatan; hemlöshet; konsumtion; Modernitet; motorcykeln; smink; mode; bilen; Helena Nyblom; Marika Stiernstedt; Hjalmar Wallander; Emil Norlander; Kar de Mumma; Signe Lindegren; Maja Jäderin-Hagfors; Martha Sandwall-Bergström; Harry Kullman; Anna Lisa Lundkvist; Disa Netterström-Jonsson; Sven Wernström; Sonja Berg; Inger Brattström; Stig Malmberg; Börje Isaksson; Lars Peterson; Kerstin Thorvall; Maria Gripe; Peter Pohl; Åsa Anderberg Strollo; Inger Edelfeldt; Peter Pohl; Mats Wahl; Tore Persson; Malin Isaksson; Douglas Foley; Literature; litteraturvetenskap;
Sammanfattning :
This thesis shows that the urban experience is a fundamental part of the development of the Swedish young adult novel by analysing city representations in Swedish young adult literature from 1890 to 2010. By suggestion that there is a strong bond between the notion of the urban and that of adolescence this study examines continuity and change in representations of coming-of-age, focusing especially on intersections between age, gender, class, ethnicity and sexuality. LÄS MER
-
Författare :Anteneh Assefa; Mats Professor; Karin Professor; Paul Professor; Patrik Andersson; Shigeki Masunaga; Umeå universitet; []
Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polychlorinated dibenzo-p-dioxin; polychlorinated dibenzofuran; positive matrix fac- torization; PMF; principal component analysis; PCA; Baltic Sea; sediment core; PCDD F; sources; marine; fish; environmental half-live; peak year; peak level; temporal trend; spatial variation; coastal; offshore; chemical fingerprint; Environmental Science; miljövetenskap;
Sammanfattning :
High levels of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in edible fish in the Baltic Sea have raised health concerns in the Baltic region and the rest of Europe. Thus, there are urgent needs to characterize sources in order to formulate effective mitigation strategies. LÄS MER
-
-
Författare :Joacim Lundberg; Sigurdur Erlingsson; Mats Gustafsson; Xavier Querol; KTH; []
Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Road dust; Road abrasion wear; Studded tyre abrasion wear; Texture; Emissions; Abrasion wear model; NORTRIP; PM10; Particles; Stone Mastic Asphalt – SMA; Porous Pavements; Double Layered Porous Asphalt Concrete – DLPAC; Road traffic noise; Rolling Resistance; Friction; Holistic; Function; Functional properties; Functional demands; Temporal variation; Spatial variation; Vägdamm; Vägslitage; Dubbdäcksslitage; Textur; Emissioner; Slitagemodell; NORTRIP; PM10; Partiklar; Asfaltsbetong; stenrik - ABS; Dränerande beläggning; Dubbeldränerande beläggning; Buller; Rullmotstånd; Friktion; Holistisk; Funktion; Funktionskrav; Tidsvariation; Rumsvariation; Byggvetenskap; Civil and Architectural Engineering; Building Materials; Byggnadsmaterial;
Sammanfattning :
Luftburna partiklar (PM) är ett problem för människans hälsa, där flertalet samband mellan negativa hälsoeffekter finns mellan luftföroreningar finns, bland annat för respiratoriska sjukdomar, lungcancer och kardiovaskulära sjukdomar med flera. I länder där dubbdäck används, till exempel Sverige, Finland och Norge, och sandning av vägar och gator genomförs vintertid för att säkerställa god friktion kommer en betydande andel av partiklarna från vägslitage och nedkrossning av sand vilket bidrar till PM10. LÄS MER
-
