Sökning: "närområdet"

Visar resultat 6 - 10 av 16 avhandlingar innehållade ordet närområdet.

1. 6. Optimization of confluent jets ventilation with variable airflow

   Författare :Harald Andersson; Mathias Cehlin; Roland Gårdhagen; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Confluent jets; Air distribution system; Air supply device; Ventilation performance; Indoor air quality; Thermal comfort; Experimental study; Computational fluid dynamics CFD ; Variable air volume.; confluent jets; luftdistributionssystem; tilluftsdon; ventilationsprestanda; inomhusluftkvalitet; termisk komfort; experimentell studie; Computational fluid dynamics CFD ; variabelflödessystem; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : In recent years, applications of confluent jets for design of ventilation supply devices have been widely studied. Similarly, numerous studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. LÄS MER

3. 7. Prediction and experimental validation of dynamic soil-structure interaction of an end-bearing pile foundation in soft clay

   Författare :Freddie Theland; Jean-Marc Battini; Amir Kaynia; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dynamic soil-structure interaction; Pile group; End-bearing piles; Dynamic impedance; Environmental vibration; Experimental validation; Dynamisk jord-struktur-interaktion; Pålgrupp; Spetsbärande pålar; Dynamisk impedans; Omgivningsvibrationer; Experimentell validering; Structural Engineering and Bridges; Bro- och stålbyggnad;

   Sammanfattning : In the built environment, human activities such as railway and road traffic, constructionworks or industrial manufacturing can give rise to ground borne vibrations. Such vibrations become a concern in urban areas as they can cause human discomfort or disruption of vibration sensitive equipment in buildings. LÄS MER

4. 8. Hägnadernas roll för jordbruket och byalaget 1640-1900

   Författare :Örjan Kardell; Janken Myrdal; Carl-Johan Gadd; Iréne Flygare; SLU Sveriges lantbruksuniversitet; []
   Nyckelord :patures; fencing; traditional farming; construction materials; history; sweden; hankgärdesgård; gropavall; stenmur; stör; hank; vidja; gärdsel; betesorganisation; skogsbrist; samhävd; bytvång; historia; History;

   Sammanfattning : Avhandlingen har en tvärvetenskaplig inriktning och avser att belysa hankgärdesgårdens betydelse från 1640 – 1900 på flera plan: virkesbehov; arbetsbehov; funktion inom byalaget. Avhandlingens grundläggande hypotes är att hägnaderna ökade över tiden. LÄS MER

5. 9. Improving Fixed Wing UAV Endurance, by Cooperative Autonomous Soaring

   Författare :Klas Andersson; Petter Ögren; Fredrik Bruhn; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; UAV; Autonomous soaring; Cooperative soaring; Computer Science; Datalogi; Flyg- och rymdteknik; Aerospace Engineering;

   Sammanfattning : The ever-expanding use and development of smaller UAVs (Unmanned Aerial Vehicles) has highlighted an increasing demand for extended range and endurance for this type of vehicles. In this thesis, the development of a concept and system for autonomous soaring of cooperating unmanned aerial vehicles is presented. LÄS MER

7. 10. Mesolitiska möten : Strandvägen, en senmesolitisk boplats vid Motala ström

   Författare :Tom Carlsson; Arkeologi; []
   Nyckelord :HUMANIORA; HUMANITIES; Archaeology; Social relations; Spatial organisation; Eastern Middle Sweden; Late Mesolithic; Arkeologi;

   Sammanfattning : This dissertation focuses on the Strandvägen site located in the town of Motala, Östergötland, Sweden. The problem concerns what shaped the material expressions on the site during 5500?5000 B.C. For reasons of text structure the space outside the settlement site (the home) is divided into the world, the district, and the neighbourhood. LÄS MER