Sökning: "activity space"

Visar resultat 31 - 35 av 373 avhandlingar innehållade orden activity space.

  1. 31. The Sun, Space Weather and Effects

    Författare :Magnus Wik; Fysiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; solar magnetism - solar indices - space weather - solar wind - solar dynamo - geomagnetic activity - wavelet analysis - neural networks - geomagnetically induced currents;

    Sammanfattning : The Sun and the solar magnetic activity is responsible for a variety of effects in space and on the Earth. High energy radiation and charged particles are constantly being emitted from the solar atmosphere interacting with our atmosphere and technological systems in space and on the ground. LÄS MER

  3. 32. Exploring evolutionary and chemical space using chemoinformatic tools and traditional methods in pharmacognosy

    Författare :Astrid Henz Ryen; Anders Backlund; Thierry Kogej; Fernando B. Da Costa; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; angiosperm chemistry; physicochemical properties of plant specialized metabolites; chemical diversity; chemical space; sesquiterpene lactones; scaffold diversity; molecular framework; cluster analysis; ECFP6; Lindera benzoin; sesquiterpenes; anti-inflammatory; Farmakognosi; Pharmacognosy;

    Sammanfattning : The number of new drugs coming to the market is declining while interest in lead discovery from natural resources is seeing a revival. Although methods for isolation and identification of natural products have advanced tremendously, methods for selection of potential leads have fallen behind. LÄS MER

  4. 33. Affordable identification and modelling of uncertain design specifications when introducing new technologies in space applications

    Författare :Olivia Borgue; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; engineering specifications; Technology introduction; uncertainties identification.; space components; model-based systems engineering;

    Sammanfattning : When introducing new technologies in space products, both the uncertainties regarding technology feasibility and the way in which the technology affects the product development process hinder the early establishment of appropriate engineering specifications. Failing to establish product specifications during conceptual stages leads to problems discovered during later phases of the product development process, when design and process changes are the most expensive. LÄS MER

  5. 34. Educational Process Reflection (EPR) : a professional development model aimed at creating a reflective space in Swedish pre-school practice

    Författare :Kerstin Bygdeson-Larsson; Gaby Weiner; Kath Green; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Teacher research; Professional development; Activity theory; Inclusive environment; Democracy; Intersubjectivity; Health promotion; Peer play and interaction; Pedgogical work; Pedagogiskt arbete;

    Sammanfattning : .... LÄS MER

  7. 35. Cosmogenic radionuclides in environmental archives – A paleo-perspective on space climate and a synchronizing tool for climate records

    Författare :Florian Mekhaldi; MERGE: ModElling the Regional and Global Earth system; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Comogenic radionuclides; 10Be; 36Cl; Solar energetic particles; Solar storms; Paleoclimate; Time-scales; Solar activity;

    Sammanfattning : The Sun is the primary source for Earth’s climate system. Its fluctuations in irradiance are also known to have an impact on climate. In addition, changes in solar activity modulate the atmospheric production rates of cosmogenic radionuclides (e.g. LÄS MER