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rss_1.0 Recursos de colección

ETD at Indian Institute of Science (2,383 recursos)
Repository of Theses and Dissertations of Indian Institute of Science, Bangalore, India. The repository has been developed to capture, disseminate and preserve research theses of Indian Institute of Science.

Chemical Engineering (chemeng)

Mostrando recursos 1 - 20 de 54

1. Modeling Lysis Dynamcis Of Pore Forming Toxins And Determination Of Mechanical Properties Of Soft Materials - Vaidyanathan, M S
Pore forming toxins are known for their ability to efficiently form transmembrane pores which eventually leads to cell lysis. PFTs have potential applications in devel-oping novel drug and gene delivery strategies. Although structural aspects of many pore forming toxins have been studied, very little is known about the dynamics and subsequent rupture mechanisms. In the first part of the thesis, a combined experimental and modeling study to understand the lytic action of Cytolysin A (ClyA) toxins on red blood cells (RBCs) has been presented. Lysis experiments are carried out on a 1% suspension of RBCs for different initial toxin concentrations...

2. Understanding Structure And Growth Of Physisorbed Films : A Combined Atomic Force Microscopy And Modeling Study - Patil Kalyan, G
Surface modification has wide ranging implications in lubrication, microelectromechanical systems (MEMS), colloidal systems and biological membranes. Surface modification plays an important role in stabilizing gold nanoparticles, which have applications in targeted drug delivery and catalysis. A variety of surface modification techniques are used for controlling corrosion and wettability, as well as used extensively to understand the nature of interactions between surfaces. This thesis is mainly focused on understanding the kinetics, film growth and surface modification by long chain molecules physisorbed on a surface. The time evolution of film growth and domain formation of octadecylamine on a mica surface is studied...

3. Defluoridation Of Drinking Water Using Activated Alumina - Kanwar, Lalita
Excess fluoride (F-) in drinking water poses a health threat to millions of people around the world. In the present work, activated alumina (AA) has been used as an adsorbent. Data obtained from batch experiments were fitted to the (i) pseudo-first order, (ii) pseudo-second order, and (iii) Langmuir kinetic model. Model (ii) performed better than model (i), and fitted the data well. However, the rate constant for adsorption ka had to be varied as a function of the initial concentration of F- in the liquid phase c0. A more satisfactory approach is provided by Langmuir model, which fitted the data...

4. Development Of Ionic Catalysts For The Water-gas Shift Reaction And Exhaust Gas Purification - Deshpande, Parag Arvind
Treatment of fuel cell feed H2 for the removal of CO is important owing to the poisoning of the catalysts, thereby affecting the performance of the fuel cell. Strong and preferential adsorption of CO over the catalyst takes place resulting in a reduction of the power output of the cell. Therefore, it is important to treat the fuel cell feed H2 to reduce its CO content below the tolerable limit. Development of efficient catalysts for the treatment of synthesis gas for the removal of CO and and H2 enrichment of the gas to make it suitable for fuel cells is...

5. Studies On The Production Of Cellulase Enzyme By Thermophilic Fungus Thermoascus Aurantiacus - Mugeraya, Gopal

6. Network Formation In Amine Curing Of Higher Functional Epoxy Resins - Rajakumari, P Maria Nirmal

7. Studies On Multiphase And Multienzymatic Oxidation Of Glucose - Prasad, M Rajendra

8. Biobeneficiation Of Bauxite Using Aspergillus Niger - Ramasudha, T

9. Studies On Copper Extraction With 5-Dodecylsalicyl Aldoxime In Supported Liquid Membranes - Ramakanth, C

10. A Device For The Estimation Of Fluoride In Drinking Water - Sen, Ananya

11. Analysis Of Protein Purification By Affinity Chromatography - Sridhar, P

12. Modeling Of Bubble Size Distribution In Reaction Injection Molded Polyurethane Foams - Niyogi, Debdarsan

13. Studies On Toughening Of Epoxy Resins Using Elastomers - Thyagarajan, B

14. Study Of Momentum Transfer In Fluid-Fluid Systems By The Boundary Integral Method - Shreekumar, *

15. Optimization Of Fed-Batch Fermentation Processes With Neural Networks - Chaudhuri, Bodhisattwa

16. Analysis Of Microwave Thawing - Basak, Tanmay

17. Extraction Of Amino Acids Using D2EHPA In Hollow Fiber Supported Liquid Membrane - Lakshmi Tulasi, G

18. Studies On Batch And Continuous Sonochemical Reactors - Ganesh, N

19. Formation Of Cream In Emulsions - Ganesh, A V

20. Kinetics Of Photo Initiated Organic And Polymer Reactions - Vinu, R
Photo-initiated reactions involve the use of ultraviolet (UV) or visible light radiation to effect chemical transformations. Some of the advantages of photo-initiated reactions over thermal or high pressure reactions include mild reaction conditions like ambient temperature and pressure, good control over the reaction by the simple switching on/off the light source, and faster reaction kinetics. Usually, semiconductor photocatalysts or oxidizing agents are used to enhance the rate of photo reactions. “Photocatalysis” involves the generation of valence band holes and conduction band electrons by the band gap excitation of a semiconductor photocatalyst. These charge carriers produce reactive hydroxyl and superoxide radicals,...

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