Essays about: "freeze test"

Showing result 1 - 5 of 27 essays containing the words freeze test.

  1. 1. Impact of storage at freezing temperatures on casein micelle size, coagulation properties and curd yield in bovine milk

    University essay from SLU/Department of Molecular Sciences

    Author : Ebba Bondesson; [2022]
    Keywords : Casein micelle size; milk coagulation time; gel strength; curd yield; freezing; freeze drying;

    Abstract : Frozen storage is an efficient and convenient way to preserve and transport milk, but the effect from frozen storage needs to be further researched. The objective of this study was to investigate how storage at freezing temperatures (-80°C and -20°C) of frozen and freeze-dried bovine milk samples, respectively, affects pH, casein micelle size, ethanol stability, rheological properties and curd yield. READ MORE

  2. 2. 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

  3. 3. Biobased carbon aerogels incorporated with zeolite nanoplates for carbon dioxide adsorption

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Maria Harila; [2021]
    Keywords : biobased; carbon aerogel; lignin; cellulose nanofiber; adsorption; carbon dioxide; zeolite nanoplate;

    Abstract : Over the last 100 years there has been an increase of greenhouse gases (CO2, CH4 and N2O) in the atmosphere. These gases cause several problems with the climate on Earth, such as increasing problems with extreme weather. One way to decrease the outlet of carbon dioxide is by adsorption and capture of CO2. READ MORE

  4. 4. Identifying subarctic river thermal and mechanical ice break-up using seismic sensing

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Stefania Ursica; [2021]
    Keywords : Ice break-up; River ice; Subarctic; Thermal melting; Mechanical break-up; Freeze-up; Environmental seismology; Seismic signals;

    Abstract : River-ice break-up in high-latitude regions, despite its brevity, is a fundamental process, representing the most dynamic and complex period of fluvial processes. Moreover, ice break-up has significant cascading ecological effects, with a different severity for mechanical vs. READ MORE

  5. 5. CRYOPRESERVATION OF HUMAN BLASTOCYSTS, A COMPARISON OF TWO VITRIFICATION AND WARMING KITS

    University essay from Uppsala universitet/Institutionen för kvinnors och barns hälsa

    Author : Sara Ottersgård; [2020]
    Keywords : Irvine Scientific; Kitazato; human embryos; embryo development; blastocyst scoring;

    Abstract : Infertility is a widespread problem around the world, although the available treatment options constantly improve through research and methodological development. A common treatment option mainly for biologically caused infertility is in-vitro fertilization, where in a menstrual cycle multiple oocytes are stimulated to mature and are then fertilized in a laboratory. READ MORE