Essays about: "water activity control"

Showing result 1 - 5 of 32 essays containing the words water activity control.

1. 1. Development of osmo- and appetite regulation during transfer of smolt from freshwater to increasing salinities

   University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

   Author : Jonna Hellesten; [2023-01-26]
   Keywords : ;

   Abstract : Atlantic salmon (Salmo salar) is common in Scandinavian aquaculture and must be transferred from freshwater to seawater to grow properly. Despite being assessed as ready smolts, meaning they have gone through the physiological changes to prepare for SW transfer, the transfer result in a mortality rate of around 13-19%, and significant appetite- and growth reductions. READ MORE

3. 2. Investigating the temperature mediated effects of antidepressant pharmaceutical on foraging behavior and activity in aquatic invertebrates

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

   Author : Johanna Björkman; [2023]
   Keywords : ;

   Abstract : Contamination by pharmaceuticals in aquatic environments is an increasing problem globally. Wide range of pharmaceuticals of different treatments classes are commonly detected in water and the tissues of organisms and there is a growing concern about how these substances might affect the aquatic ecosystems. READ MORE

4. 3. Tether-free Driveline Control for Water Propulsion Devices

   University essay from Lunds universitet/Ergonomi och aerosolteknologi; Lunds universitet/Certec - Rehabiliteringsteknik och Design

   Author : Isak Marklund; Axel Müller; [2023]
   Keywords : Dead man’s switch; electric surfboard; jet surfboard; machine learning; user experience; usability testing; neural network; decision tree; bootstrap aggregating; time series; Technology and Engineering;

   Abstract : For many machines, safety requires the constant presence of an operator, with the risk of damage or danger if the operator is unintentionally absent. Dead man’s switches (DMS) are commonly used to halt operations if this absence is detected, often relying on physical elements like leashes or buttons. READ MORE

5. 4. Phase and Interface Design in Potential Earth-Abundant Multi-Component Photocatalysts

   University essay from Lunds universitet/Kemiska institutionen

   Author : David Llorens Rauret; [2022]
   Keywords : Facet control; in-situ TEM; nanoparticle heterostructures; phase transformation; transition metal phosphides; inorganic nanomaterials; Chemistry;

   Abstract : Transition metal phosphides are low-cost, earth-abundant semiconductors with promising properties for photocatalysis, including water-splitting. When combined with other semiconductors or noble metals in nanoparticles, their photocatalytic performance can be drastically enhanced. READ MORE

6. 5. Study of the Non-Thermal Escape ofDeuterium on Mars : Collisions between Suprathermal Oxygen and Deuterium

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Sorcha Mac Manamon; [2022]
   Keywords : Atmospheric Escape; Mars; Deuterium; Modelling; Non-thermal Escape; suprathermal oxygen;

   Abstract : Mars’ climate has undergone many massive changes over the course of it’s lifetime. In order toestablish how Mars lost the vast majority of its water, we must be able to understand how Marsis losing its atmosphere today. READ MORE