Sökning: "Rate of Penetration"
Visar resultat 1 - 5 av 128 avhandlingar innehållade orden Rate of Penetration.
1. Liquid phase sintering of W-Ni-Fe composites : liquid penetration, agglomerate separation and tungsten particle growth
Sammanfattning : The initial stage of liquid phase sintering, involving liquid penetration, agglomerate separation, particle spreading and growth has been investigated in experiments using tungsten heavy alloys. The particle composites used were produced by hot isostatic pressing (HIP) of pure powder mixtures of W-Ni-Fe-(Co). LÄS MER
2. Parameters optimization of oil well drilling operation
Sammanfattning : In the beginning of 2005, the ministry of natural resources in the Kurdistan region of Iraq dividedits territory into more than 50 oil blocks based on geological setting. These oil blocks were awardedlater to different international oil companies for oil investments based on Production SharingContracts (PSCs). LÄS MER
3. A physical modeling study of top blowing with focus on the penetration region
Sammanfattning : This thesis work aimed at increasing the knowledge regarding phenomena occurring when gas is injected using a top-blown lance on to a bath. All results are based on physical modeling studies carried out both using low and high gas flow rates and nozzle diameters ranging from 0.8 mm to 3.0 mm. LÄS MER
4. Formulations, Release and Skin Penetration of Topical Anesthetics
Sammanfattning : This thesis describes certain critical aspects of the development of semisolid topical anesthetic formulations requiring a fast onset of action. Furthermore, local anesthetics were investigated regarding their phase interaction with membrane lipids. LÄS MER
5. Wetting and Capillary Flow of Surfactant Solutions and Inks
Sammanfattning : This thesis presents results of a series of experimental studies on the spreading dynamics of small drops of complex solutions on solid surfaces. The capillary flow dynamics of complex solutions have also been investigated. LÄS MER