Yağ/Su (Y/S) ve Su/Yağ (S/Y) emülsiyonlarının ayrımının NMR Relaksometre kullanarak tespiti



Synthesis and characterization of fatty acid based hyperbranched polymers for anti-cancer drug delivery
Güç, Esra; Gündüz, Ufuk; Department of Biology (2008)
Conventional methods of chemotherapy requires novel therapy systems due to serious side effects and inefficiency of drug administration. In recent years many studies are carried out to improve drug delivery systems. Polymers are one of the most important elements for drug delivery research due to their versatility. By the discovery of dendritic polymers, drug delivery studies gained a new vision. Highly branched monodisperse structure, multiple sites of attachment, well-defined size and controllable physica...
Synthesis oil based hyperbranched resins and their modification with melamine formaldehyde resins
Karakaya, Ceylan; Gündüz, Güngör; Department of Chemical Engineering (2005)
In this research hyperbranched resins containing fatty acid residues like alkyds were synthesized. Dipentaerythritol which has six hydroxyl groups was used as the core molecule, and it was transesterified with (i) castor oil, and (ii) a mixture of castor oil and linseed oil at 240°C in the presence of sodium hydroxide as catalyst. The resulting molecule, in either case, was then esterified with dimethylol propionic acid at 140°C in the presence of p-toluene sulfonic acid as catalyst. Melamine-formaldehyde r...
Development of vascularized adipose tissue construct based on adipose tissue extracellular matrix and silk fibroin
Kayabölen, Alişan; Tezcaner, Ayşen; Zor, Fatih; Department of Biomedical Engineering (2015)
Adipose tissue engineering is a promising field for regeneration of soft tissue defects. However, vascularization is needed since cells in the middle layer of thick implants cannot reach to nutrient and oxygen by diffusion. Finding a biocompatible scaffold with good mechanical properties is another problem in this field. In this study, we aimed to develop a thick functional vascularized adipose tissue which supports cell viability and functionality with similar mechanical properties with the adipose tissue....
Investigation of the effect of oil groove in the performance of a compressor piston
Hacıoğlu, Bilgin; Dursunkaya, Zafer; Department of Mechanical Engineering (2006)
Oil feed grooves are implemented in reciprocating compressor piston applications to assure a constant supply of lubricating oil on bearing surfaces and decrease friction loss. In a hermetically sealed compressor, due to small clearances encountered, oil supply becomes critical in order not to operate in boundary lubrication regime. Due to the small size of the piston and small piston cylinder clearance, a partial lubrication regime is present. In the current study, a model that solves Reynolds’ equation fo...
Fatigue life calculation by rainflow cycle counting method
Arıduru, Seçil; Çalışkan, Mehmet; Department of Mechanical Engineering (2004)
In this thesis, fatigue life of a cantilever aluminum plate with a side notch under certain loading conditions is analyzed. Results of experimental stress analysis of the cantilever aluminum plate by using a uniaxial strain gage are presented. The strain gage is glued on a critical point at the specimen where stress concentration exists. Strain measurement is performed on the base-excited cantilever beam under random vibration test in order to examine the life profile simulation. The fatigue analysis of the...
Citation Formats
S. Güner, H. M. Öztop, and S. G. Şümnü, “Yağ/Su (Y/S) ve Su/Yağ (S/Y) emülsiyonlarının ayrımının NMR Relaksometre kullanarak tespiti,” 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/81843.