Essays about: "430"

Showing result 21 - 25 of 45 essays containing the word 430.

  1. 21. Perfluoroalkyl substances (PFASs), flame retardants and cyclic volatile methylsiloxanes in indoor air in Uppsala, Sweden : occurrence and human exposure assessment

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Bo Sha; [2017]
    Keywords : passive air sampling; SIPs; indoor air; PFAS; flame retardants; siloxanes; human exposure;

    Abstract : Indoor air samples were collected from three buildings located at the Swedish University of Agricultural Science (SLU) campus in Ultuna, Uppsala, Sweden and from residences of nine volunteers working in the three buildings. Sorbent-impregnated polyurethane foam (SIP) disk passive air samplers were deployed in different types of rooms in the three buildings including computer room (n = 1), labs (n = 3), lecture rooms (n = 3), offices (n = 8) and dining areas (n = 3) and homes (n = 9) of the volunteers between September and November in 2016. READ MORE

  3. 22. Developing a GIS model for the assessment of outdoor recreational facilities in new cities : case study : Tenth of Ramadan City, Egypt

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Raghdaa Eissa; [2017]
    Keywords : accessibility; physical geography; GIS; recreation; geography; geographical Information Systems; Earth and Environmental Sciences;

    Abstract : With population that exceeds 90 million inhabitants, Egypt is one of the large Arab developing countries where the government policies headed towards constructing new urban communities to absorb the vast increase in population. Although the physical planning of the new urban settlements took into consideration the existence of outdoor recreational services and facilities, the quality and adequacy of these services cannot be measured only by their presence. READ MORE

  4. 23. Sulfur tolerance of SCR catalysts : Development of a lab testing method

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Cornelia Lantto; [2017]
    Keywords : ;

    Abstract : NOx emissions from diesel vehicles are a currently well-discussed matter due to the related health and environmental issues. At the same time, diesel vehicles are an important part of transportation in society as diesel engines are more fuel efficient than gasoline engines. READ MORE

  5. 24. Diversity and Evolution of Silurian Radiolarians

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Martin Tetard; [2016]
    Keywords : Radiolaria; Silurian; Canadian Arctic; Paleobiodiversity; Diversity trends; CT-Scan; Radiolaria; silur; diversitetsmönster; kanadensiska Arktis;

    Abstract : The three approaches followed herein aim to improve our understanding of the paleobiodiversity andevolution of Silurian radiolarians. The first approach provides an exhaustive taxonomic description ofan entirely new radiolarian fauna recovered from two sections of the Cape Phillips Formation in theCanadian Arctic which accumulated in two different paleoenvironmental settings. READ MORE

  6. 25. Behavioural differences between and within retriever breeds

    University essay from Linköpings universitet/Biologi

    Author : Louise Brodd; [2016]
    Keywords : Behaviour; Breed; Dog; Field test; Retreiver;

    Abstract : The retriever breeds have the same origin and have long been used as a gundog for hunting of game, mostly birds. However, recently the retriever breeds have become a popular pet and show dog. This have affected the breeding of the dogs as the same traits are not bred for a gundog and a pet or show dog. READ MORE