Sökning: "Cylindrical"

Visar resultat 21 - 25 av 291 avhandlingar innehållade ordet Cylindrical.

1. 21. The tomb of Caecilia Metella: tumulus, tropaeum and thymele

   Författare :Henrik Gerding; Antikens kultur och samhällsliv; []
   Nyckelord :HUMANIORA; HUMANITIES; Mundus; Spatial concepts; Punctuation marks; Via Appia; Late Republican Rome; Prosopography; Three-dimensional documentation; Sepulchral architecture; Circular monuments; Cylindrical tombs; Ancient history; Roman architecture; Buildings archaeology; Katabasis; Crassus; Augustus; Spolia Opima; Archaeology; Arkeologi;

   Sammanfattning : The present thesis constitutes a close study of a single architectural monument, the tomb of Caecilia Metella. This is a well-preserved cylindrical tomb situated on the Via Appia outside Rome, and it is generally associated with sepulchral buildings of the traditional tumulus type. LÄS MER

3. 22. Development and Evaluation of a Denuder-Filter System Designed for Sampling Diisocyanate Aerosols

   Författare :Yvonne Nordqvist; Ulrika Nilsson; Peter Haglund; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cylindrical denuder; Diisocyanate; TDI; HDI; IPDI; MDI; Chemosorption; Vapour particle distribution; Aerosol sampling; Analytical chemistry; Analytisk kemi;

   Sammanfattning : There are many occupational environments in which isocyanates or PUR-products are used, produced or processed. During these operations there is always a risk of isocyanate exposure, which may lead to severe health problems. Isocyanates principally affect the respiratory system and they are the main cause of occupational asthma. LÄS MER

4. 23. Fiber Suspension Velocity Measurements in a Cylindrical Through-Flow Hydrocyclone : Evaluation of Pitometer and Ultrasonic Techniques

   Författare :Jonas Bergström; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

5. 24. Investigation of Thermal Performance of Cylindrical Heatpipes Operated with Nanofluids

   Författare :Morteza Ghanbarpourgeravi; Rahmatollah Khodabandeh; Björn Palm; Oronzio Manca; KTH; []
   Nyckelord :Nanofluid; heat pipe; thermal resistance; heat transfer coefficient; evaporator; condenser; wick; porous layer; heat flux; inclination angle; thermal conductivity; viscosity; Energiteknik; Energy Technology;

   Sammanfattning : Nanofluids as an innovative class of heat transfer fluids created by dispersing nanometre-sizedmetallic or non-metallic particles in conventional heat transfer fluids displayed the potential toimprove the thermophysical properties of the heat transfer fluids. The main purpose of this study is toinvestigate the influence of the use of nanofluids on two-phase heat transfer, particularly on thethermal performance of the heat pipes. LÄS MER

7. 25. Acoustical Characteristics of Aircraft Panels

   Författare :Bilong Liu; Leping Feng; Jie Pan; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acoustics; sound transmission loss; stiffener; stiffening; aircraft panel; cylindrical shell; turbulent boundary layer; TBL; noise; sound radiation; Acoustics; Akustik;

   Sammanfattning : A deterministic approach based on a modal expansion and modal receptance method has been developed to evaluate the airborne sound insulation of aircraft panels with stringer and ring frame attachments. Furthermore, this method was extended to predict the noise radiation of stiffening panel subjected to TBL excitation. LÄS MER