Sökning: "Partial Substitution"
Visar resultat 1 - 5 av 11 uppsatser innehållade orden Partial Substitution.
1. Use of Polyvinyl chloride (PVC) as an aggregate for concrete
Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomiSammanfattning : This study investigates the use of polyvinyl chloride (PVC) as a partial substitute of natural aggregates in concrete as fine and coarse aggregates. Concrete was prepared by replacing natural aggregates with equal volume of grinded PVC, with volume replacement ratio as 10%, 50% for fine and then 10% and 50% for coarse aggregates. LÄS MER
2. Biochar and hemp as peat substitutes in organic growing media : effects on nutrient availability and nutrient uptake
Master-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)Sammanfattning : This study aimed at evaluating the suitability of biochar and hemp as partial or complete replacement of peat in horticultural growing media, with specific emphasis on the effects on nutrient availability and plant nutrient uptake. The study was motivated by the environmental concerns surrounding the use of peat, along with a desire to explore possible uses for biochar and a crop residue from hemp cultivation. LÄS MER
3. Assessment of calculation methods for Primary Energy Factors : Case Study of Swedish electricity mix
Magister-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknikSammanfattning : The use of the concept of "primary energy" is present in all types of regulations at both European and national level, so that all aspects related to the reduction of energy use and energy efficiency measures speak in terms of primary energy and Primary Energy Factors, necessary for its conversion. The existing consensus on the use of the term is not such in terms of the methodology for calculating the Primary Energy Factors to be adopted, which is the reason for the search for a methodology that acquires the status of global and standard. LÄS MER
4. Metadon eller buprenorfin vid farmakologisk behandling av opioidberoende? : Effekt och säkerhetsaspekter
Kandidat-uppsats, Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)Sammanfattning : Bakgrund: Opioider är det övergripande begreppet för substanser med affinitet för opioidreceptorer som framkallar morfinliknande effekter bland annat sedering, smärtlindring, muskelavslappning och eufori. Samtliga opioider har beroendeframkallande effekter som står för en global missbruksproblematik. LÄS MER
5. Textile paper as a circular material
Master-uppsats, KTH/Industriell ekologiSammanfattning : Increasing resource efficiency by utilising secondary raw material is one of the key characteristics of a circular economy. Textile dust fibre, a waste generated from textile mechanical recycling has the prospect to be utilised as secondary raw material for producing novel material: textile paper suitable for packaging and other applications. LÄS MER