Sökning: "Field experiment"

Visar resultat 21 - 25 av 670 avhandlingar innehållade orden Field experiment.

1. 21. Ventilation Flow Field Characteristics of a Hydro-Generator Model- An experimental and Numerical Study

   Författare :Hamed Jamshidi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Naphthalene Sublimation Technique; Hydro Power Generator; Ventilation; Experiment; CFD;

   Sammanfattning : Hydro-generators are complex machines used to convert the mechanical energy of the water turbine into electrical energy. Electromagnetic and mechanical losses accompany this energy conversion process which will cause heat generation and temperature increase. Cooling systems are needed to remove this excess heat from hydro-generators. LÄS MER

3. 22. Process Models for CO2 Migration and Leakage : Gas Transport, Pore-Scale Displacement and Effects of Impurities

   Författare :Farzad Basirat; Auli Niemi; Karsten Jensen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geological Carbon Storage; CO2 leakage; Field experiment; Laboratory experiment design; Multi-phase flow; Heterogeneity; Wettability; Pore-scale modeling; Impurity gases; Hydrology; Hydrologi;

   Sammanfattning : Geological Carbon Storage (GCS) is considered as one of the key techniques to reduce the rate of atmospheric emissions of CO2 and thereby to contribute to controlling the global warming. A successful application of a GCS project requires the capability of the formation to trap CO2 for a long term. LÄS MER

4. 23. Analysis and Modelling of Desalination Brines

   Författare :Raed Bashitialshaaer; Avdelningen för Teknisk vattenresurslära; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Modelling.; Field data analysis; Negatively buoyant jet; Experiment; Brine discharge; Desalination; Water supply;

   Sammanfattning : Seawater desalination constitutes an important water supply to the population bordering the Arabian Gulf, the Mediterranean Sea and the Red Sea. The three regions represent about 11.8% of the world land area and the countrieshosted approximately 9% of the world population in 1950 and 2008 and are also projected to do so in 2050. LÄS MER

5. 24. Factors influencing emission fluxes and bacterial enrichment in sea spray aerosols : Insights from laboratory and field studies

   Författare :Julika Zinke; Matthew E. Salter; Paul Zieger; Rachel A. Foster; E. Douglas Nilsson; Patricia K. Quinn; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Sea spray aerosols; eddy covariance fluxes; air-sea-exchange; bacteria; primary biological airborne particles; laboratory studies; field studies; Baltic Sea; North-Eastern Atlantic; Environmental Sciences; miljövetenskap;

   Sammanfattning : Sea spray aerosol (SSA) is one of the major natural aerosol sources and is produced when wave breaking entrains air into ocean surface water, which subsequently breaks up into bubbles. These bubbles rise to the surface and can scavenge biogenic material. LÄS MER

7. 25. Fairness, technology adoption, water sanitation and pandemic control : Six essays on four topics in Development Economics

   Författare :Selene Ghisolfi; Jakob Svensson; Ingvild Almas; Aureo de Paula; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Fairness; Bargaining; Field experiment; Lab-in-the-field; optimal policy; Community-Driven Development; Water Sanitation; Agriculture; Technology adoption; Market for quality; Covid-19; Mortality rates; Developing countries; Behavioural response; Economics; nationalekonomi;

   Sammanfattning : Contribution Requirements and Redistribution Decisions: Experimental Evidence from Bangladesh uses a controlled experiment to assess the effects of requiring co-funding to development programs on the efficiency and distribution of benefits within the community.Market Access and Quality Upgrading: Evidence from Randomized Experiments tests if increasing reward to quality produce improves profits, agricultural productivity, and input use, using a randomized experiment in Uganda. LÄS MER