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Name
Environment. Technology. Resources.
Type
Journal
Items
456 Publications
Compatibility
OpenAIRE 3.0 (OA, funding)
OAI-PMH
http://journals.ru.lv/index.php/ETR/oai

 

  • Thermal Insulation Materials From Sapropel And Hemp Shives (Cannabis Sativa L .)

    In Latvia, sapropel is an organic lake sediment that is formed from the remains of aquatic animals and aquatic plants, containing mineral particles (sand, clay, calcium carbonate and other compounds). Hemp is a rapidly growing multi – functional energy plant. Hemp seeds and fibre have a very high value on the world market , but in the world when processing hemp, shives of hemp remain as waste. The solution is found in the resources available in Latvia to use them for increasing energy efficie...

    SUSTAINABLE DEVELOPMENT MANAGEMENT AND TRANSFRORMATION OF PLANNED ECONOMY TO MARKET ECONOMY

    In the article the main requirements for sustainable economic development management system were formed using theoretical approach. According to the collected theoretical material, approaches of sustainable management of economic systems from the viewpoint of principles of sustainability are reviewed. The article evaluates the content and issues related to the environmental indicators, including the environmental space and the ecological footprint concepts, applied in sustainability measureme...

    ONTOLOGY-BASED SYSTEM DEVELOPMENT FOR MEDICAL DATABASE ACCESS

    Medical research is a complex multi-disciplinary task involving specialists from different fields and professions, not only medical professionals. Medical databases are structured by information technology experts, but the contents must be tailored to the medical field. When the medical staff defines the information they use, terminology from their particular field of expertise is employed. This leads to misunderstandings between the maintainers and developers of information technology soluti...

    Application of Latvian illite clays in cosmetic products with sun protection ability

    Recent research shows that clay minerals can be used in sunscreens as UV filters instead of inorganic and organic compounds, which can cause unexpected photo-catalytic effect and damage the skin surface and can be absorbed into the skin and cause allergic reactions. In this study UV transmittance of suspensions containing clay fraction (mostly illite) and 50% glycerol/water solution was measured. Samples without chemical treatment, with removed carbonates and iron containing minerals (oxides ...

    RAPE SEED OIL TETRAHYDROFURFURYLESTERS

    The transesterification of vegetable oil using various kinds of alcohols is a simple and efficient renewable fuel synthesis technique. Products obtained by modifying natural triglycerides in transesterification reaction substitute fossil fuels and mineral oils. Currently the most significant is the biodiesel, a mixture of fatty acid methyl esters, which is obtained in a reaction with methanol, which in turn is obtained from fossil raw materials. In biodiesel production it would be more approp...
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