Essays about: "dry ice"

Showing result 1 - 5 of 19 essays containing the words dry ice.

  1. 1. Grain Size Analysis of Late Pleistocene Loess Deposits, Jersey

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Joakim Edlund; [2022]
    Keywords : Jersey; loess; grain size; ice age; past climate; Jersey; löss; kornstorlek; istid; forntida klimat;

    Abstract : As the world faces the effects of rapid climate change it is essential that we understand how the Earth’s climate has evolved in recent geological history. The island of Jersey harbours loess deposits which hold clues to recent climate change which have not been extensively studied. READ MORE

  3. 2. Polymer-based additive manufacturing: optimization for high-performance degradable polymers

    University essay from KTH/Fiber- och polymerteknologi

    Author : Danjing Chen; [2022]
    Keywords : copolymerization; fused filament fabrication; degradable polymer; scaffold; 3D printing; sampolymerisering; tillverkning av filament; nedbrytbar polymer; tredimensionella matriser; 3D printing;

    Abstract : I det här utvecklas en reproducerbar polymerisationsmetod för att uppnå en stabil produktion av poly(ε-caprolakton-co-p-dioxanon) (PCLDX), skala upp filamenttillverkningen för att producera 1.75 mm långa filament och optimera 3D-utskriftsprocessen för att tillverka ställningar/anordningar för mjukvävnadsteknik. READ MORE

  4. 3. Normalization of Cooling Demand in Buildings, development, and evaluation of methods

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Xingtong Wu; [2022]
    Keywords : ;

    Abstract : Because of the increasing demand for indoor thermal comfort and the better insulation performance of building envelopes, cooling demand is an increasingly important part of building energy consumption despite the cold climate in Stockholm. Finding a way to normalize cooling demand to climatic conditions will help better energy audits to improve the building performance to achieve energy-saving. READ MORE

  5. 4. Determination of Mass- and Heat Transfer Coefficients for Computer Modelling of Pharmaceutical Freeze-Drying

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

    Author : Linnea Gustafsson; [2021]
    Keywords : Freeze-drying; Mass- and Heat Transfer; Pharmaceutical production; Simulation; MATLAB; Pharmaceutical technology; Technology and Engineering;

    Abstract : This thesis work deals with the determination of mass- and heat transfer coefficients for pharmaceutical vial freeze-drying and the one-dimensional steady state computer modelling of primary drying. The overall heat transfer coefficient K_V for the vial/freeze-dryer system was successfully determined using a gravimetric method. READ MORE

  6. 5. Estimating active layer thickness at the high Arctic study site Zackenberg from remotely sensed ground subsidence

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Lotte Wendt; [2021]
    Keywords : active layer thickness; DInSAR; subsidence; permafrost; Zackenberg; CALM; Earth and Environmental Sciences;

    Abstract : The active layer thickness (ALT) is an indicator of permafrost thaw, which potentially leads to the release of large amounts of greenhouse gases under global warming, and thus could further amplify climate change. The thaw depth of the active layer also governs seasonal surface deformation, caused by the volume change between ice to water, which poses risks for slope stability and infrastructure foundations. READ MORE