Essays about: "freezing rate"

Showing result 1 - 5 of 30 essays containing the words freezing rate.

1. 1. Greenhouse gas emissions from peat soil thawing in spring : a comparison between fertilized and unfertilized soil

   University essay from SLU/Dept. of Soil and Environment

   Author : Fanny Otterlin Karlsson; [2024]
   Keywords : agricultural soil; carbon dioxide; freeze-thaw cycles; nitrous oxide; soil temperature; water content;

   Abstract : Peat soils drained for agriculture and forestry contribute to a significant amount of greenhouse gas emissions. Nitrous oxide is a greenhouse gas with high warming potential and agriculture in general accounts for about 70 % of nitrous oxide emissions. READ MORE

3. 2. Conditioned 3D-printed polyamides for structural optimization : Establishing the material data to advance in AM utilization

   University essay from Uppsala universitet/Tillämpad materialvetenskap

   Author : Philip Olsson; [2022]
   Keywords : Additive manufacturing; selective laser sintering; multi jet fusion; moisture; temperature;

   Abstract : Polyamides are commonly used in additive manufacturing for final part production, but the material performance can be affected by environmental conditions. The purpose of this project was to evaluate the effects of moisture and temperature on 3D printed polyamides and how structural optimization can benefit from condition-specific data. READ MORE

4. 3. Use of a Sperm-Hyaluronan Binding Assay for evaluation of sperm quality in dromedary camels

   University essay from SLU/Dept. of Clinical Sciences

   Author : Anna Kotila-Ioannou; [2022]
   Keywords : Camel Semen; Dromedary camel; Sperm-Hyaluronan Binding Assay; sperm quality analysis;

   Abstract : The objective of this study was to assess the potential of Hyaluronan Binding Assay (HBA) to predict freezability and fertilization capacity of dromedary camel spermatozoa, and to determine if conventional sperm quality parameters and precursor of A-Kinase Anchoring Protein 4 (proAKAP4) values correlate with HBA results. Two semen samples were collected from each of six male camels. READ MORE

5. 4. Fragmentation in graupel snow collisions

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

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

   Abstract : 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. READ MORE

6. 5. Double-layer vs single-layer cryogels as a dye affinity chromatography column, comparison study

   University essay from Lunds universitet/Kemiska institutionen

   Author : Thi Hoai Thu Trinh; [2022]
   Keywords : dye-affinity chromatography; single-layer cryogels; double-layer cryogels; protein purification; bovine serum albumin; biochemistry; Chemistry;

   Abstract : Dye affinity chromatography is one of the chromatography techniques which uses dye as a ligand for protein purification. In this study, single-layer poly(acrylamide-allyl glycidyl ether) cryogel was prepared, which contains free epoxy groups at sub-zero temperature. READ MORE