Sökning: "Elektrisk konduktivitet"
Visar resultat 21 - 25 av 31 uppsatser innehållade orden Elektrisk konduktivitet.
21. Landscape factors related to performance of in-situ sensors for prediction of total phosphorus : a statistical analysis of data from 194 streams in Sweden
Master-uppsats, SLU/Dept. of Aquatic Sciences and AssessmentSammanfattning : Accurate monitoring data of phosphorus concentrations in the water will benefit the evaluation of measures taken to reduce the problems of eutrophication. Today, the quantification of phosphorus loads from diffuse sources involves large uncertainties. LÄS MER
22. Utvärdering av kvävereduktion i en passiv denitrifierande bioreaktor
Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemivetenskap (CHE)Sammanfattning : Kväve har tidigare endast utvunnits ur atmosfären med hjälp av naturligt förekommande kvävefixerande bakterier men i och med uppkomsten av Haber-Bosch processen under tidigt 1900 – tal har det blivit möjligt att utvinna kväve ur atmosfären på kostgjord väg. Detta har lett till en obalans i kvävets naturliga kretslopp. LÄS MER
23. Springs in the Central Parts of Vallentuna Municipality - traditions and threats
Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemivetenskap (CHE)Sammanfattning : Twenty springs in the central parts of Vallentuna municipality have been studied to determine their present water qualities and suggest actions that could be taken to improve the water quality and availability of the springs. The measured parameters are the water volume, the water flow, the water temperature, the pH-value, the electrical conductivity, the chloride concentration, the alkalinity and the CODMn. LÄS MER
24. Water quality in rivers affected by urbanization : a case study in Minas Gerais, Brazil
Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : This study highlights the key issues that urban river systems face due to urbanization. The city of Frutal (20°01' 32.17”S 48°56' 09.62” W) centered in the Brazilian state of Minas Gerais is under urban expansion today. LÄS MER
25. Soil carbon in small-holder plantain farms, Uganda : a comparison between agroforestry and non-agroforestry
Kandidat-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : Smallholder farmers in Uganda suffer from declining productivity. With a rapidly increasing population, marginal land is taken into production and the current land management leads to loss in soil fertility and escalation in soil erosion. LÄS MER