Sökning: "ice crystals"

Visar resultat 1 - 5 av 22 uppsatser innehållade orden ice crystals.

  1. 1. Seasonal Variability of Ice Nucleating Particles (INP) in Southern Sweden

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Tamina Kabir; [2023-03-08]
    Nyckelord :;

    Sammanfattning : Cloud ice crystals are formed by ice-nucleating particles (INPs). The micro-physical properties of clouds, precipitation formation and the life cycle of clouds are strongly influenced by the presence or absence of ice. Therefore knowledge of atmospheric INP concentrations is crucial to improve weather forecasting and climate projections. LÄS MER

  3. 2. Simulations of anisotropic vibrations in ice induced by a laser

    Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Victor Freedman; [2022]
    Nyckelord :ice; anisotropy; laser; freedman; molecular dynamics; simulations;

    Sammanfattning : Systems of atoms have their kinetic energy distributed between three parts: translation, rotation and vibration. These are usually kept about the same following a Maxwell distribution, but under certain circumstances, this equilibrium might break. This would lead to, for example, ice melting anisotropically. LÄS MER

  4. 3. Effect of the Cooling Rate and the Surface Film Composition on the Colloidal Stability of Whey Protein Based Emulsions of Triacylglycerols

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Charlotte Schüler; [2022]
    Nyckelord :Emulsion technology; Fat crystallization; Emulsified triglycerides; Colloid science; Food technology; Agriculture and Food Sciences; Technology and Engineering;

    Sammanfattning : The goal of this project was to investigate the effect and interplay of formulation and processing parameters on the colloidal stability of emulsified triacylglycerols from a product quality perspective. Different methods to quantify and monitor this effect over time were evaluated. LÄS MER

  5. 4. Fragmentation in graupel snow collisions

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Martanda Gautam; [2022]
    Nyckelord :Ecosystem Analysis; Clouds; Snow; Graupel; SIP; Fragmentation; CKE; Rime Fraction; Earth and Environmental Sciences;

    Sammanfattning : Aircraft observations of precipitating clouds with cloud top temperatures higher than -38°C have revealed that Secondary Ice Production (SIP) is responsible for presence of majority of ice particles. One such SIP mechanism is fragmentation via collisions between ice particles. LÄS MER

  7. 5. Molnens påverkan på jordens strålningsbalans och klimatsystem

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Hans Jägfeldt; [2022]
    Nyckelord :moln; kondensation; aerosol; strålningsbalans; klimat; klimatsystem; kosmisk strålning; troposfären; Earth and Environmental Sciences;

    Sammanfattning : The role of clouds in the climate system has been studied and their impact on the Sun's impact on the Earth's energy balance. The Earth's albedo affects the energy balance by influencing how much of the Sun’s radiation is reflected or absorbed. Clouds affect the Earth's albedo and therefore play an important role in this balance. LÄS MER