Sökning: "key transitions"

Visar resultat 41 - 45 av 114 avhandlingar innehållade orden key transitions.

1. 41. Experimental Investigation of Three-Dimensional Single and Double optical Lattices

   Författare :Harald Ellmann; Poul Jessen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : A complete laser cooling setup was built, with focus on threedimensional near-resonant optical lattices for cesium. These consist of regularly ordered micropotentials, created by the interference of four laser beams. One key feature of optical lattices is an inherent ”Sisyphus cooling” process. LÄS MER

3. 42. Crystallographic studies of non-equilibrium structural changes in cathode materials

   Författare :Olof Gustafsson; William Brant; Marnix Wagemaker; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diffraction; Crystallography; Li-ion battery cathode materials; Spinel; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Sammanfattning : Battery cathode materials are a key focus for improvement of Li-ion battery chemistries due their limits in terms of capacity and cost. During insertion and extraction of Li, many cathode materials exhibit structural changes, ranging from e.g. phase transitions to amorphization. LÄS MER

4. 43. Chemodynamics in Star-Forming Molecular Clouds

   Författare :Chia-Jung Hsu; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stars: formation; hydrodynamics; methods: numerical; ISM: clouds; astrochemistry;

   Sammanfattning : Stars are fundamental building blocks of galaxies. However, the answers to many basic questions about their formation remain elusive. There is no consensus on a theory that can predict the rate of star formation, its clustering properties, and the conditions needed for massive stars to be born. LÄS MER

5. 44. Environmental sequencing to infer patterns of eukaryotic evolution : Combining long-read and short-read metabarcoding

   Författare :Mahwash Jamy; Fabien Burki; Micah Dunthorn; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Protists; eukaryotes; environmental sequencing; ribosomal DNA; PacBio; long-read metabarcoding; phylogenetics; salt barrier; habitat evolution; eukaryotes evolution; evolutionary rate; Apicomplexa; pathogen; Biology with specialization in Systematics; Biologi med inriktning mot systematik;

   Sammanfattning : Our view of eukaryotes is biased towards plants, animals, and fungi. But the vast majority of eukaryotic diversity is microbial in nature. These microbial eukaryotes are key players in all ecosystems on earth and are collectively known as protists. LÄS MER

7. 45. Introductory methodological support for cross-sectoral municipal and regional strategic work for sustainability

   Författare :Lisa Wälitalo; Göran Broman; Edith Callaghan; Karl-Henrik Robèrt; Blekinge Tekniska Högskola; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Strategic sustainable development; Cross-sector collaboration; Action research; Municipalities and regions; Methodological support;

   Sammanfattning : Municipal and regional actors, and in particular their respective governments, have key roles to play for society’s transition to sustainability, and many good efforts have been made. However, co-creating sustainable visions and effective governance towards such visions is a complex challenge and an overarching systems perspective is often lacking in the decision making. LÄS MER