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Fen Bilimleri Enstitüsü: Recent submissions

Now showing items 1201-1220 of 3863

How intrinsic dynamics and allostery in G-protein coupled receptors (GPCRS) define functional selectivity?

Duman, Özge. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)

G-protein Coupled Receptors (GPCRs) are the largest family of the of sensory proteins which play an important role in many diseases related to signaling pathways. Thus, understanding GPCR activation mechanism is a corner ...
An experimental analysis on catalytic dry reforming of methane (CDRM) performance of Ni/SBA-15 system

Türkmen, Mustafa Olcay. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)

The main objective of this study is to design and develop an efficient Ni based and SBA-15 supported mono metallic catalyst in order to produce a high yield synthesis gas via catalytic dry reforming of methane. The ...
Wavelet coherence :|analysis of time series and exploration towards fault detection

Duman, Ali İsmail. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)

Wavelet Coherence Analysis (WCA) is a tool for depicting degree of coherency and phase differences between binary time series. The advantages of WCA are the capability to cope with non-stationary time series and to monitor ...
Role of oxygen vacancy in the adsorption and dissociation of carbon dioxide molecule on the surface of monoclinic zirconia (1̅11) :|a density functional theory study

Özkan, Dalga Merve. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)

The stable performance of a Catalytic Dry Reforming of Methane (CDRM) catalyst is primarily determined by its ability to resist coke formation; in a broad sense, the coke formed on hydrogen production (i.e. methane ...
Comparative study of hydrogen evolution over perovskites and other oxides

Özdemir, Pınar. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)

This study aims to compare the hydrogen evolution efficiency of photocatalysts based on titanate, tantalate, and niobium perovskite as well as some other oxides in 20% aqueous solution of various sacrificial agent. The ...
Modeling and simulation of CO2-rich synthesis gas to dimethyl ether conversion in microchannel reactors

Tozar, Uğurcan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Dimethyl ether (DME) is considered as a strong counterpart of oil derivative fuels, such as liquid petroleum gas (LPG) and diesel fuel, due to its environmentally friendly combustion characteristics and compatibility with ...
Effects of nanocarriers of saccharomyces cerevisiae

Özbek, Özlem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Nanocarriers have been studied widely owing to their promising features in the field of drug delivery and they improve pharmacokinetic properties, biodistribution, solubility and stability, provide controlled release and ...
Development of PLA-calcium phosphate composites with high compressive strength employing a silane coupling agent (A-174)

Öner, Feyza Kevser. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Polymer-ceramic composites are being investigated in bone tissue engineering applications to obtain bone-like properties so that problems including the necessity of a second operation for metal implants are avoided. These ...
Investigation of the bacterial uptake of fluorescently labeled peptides and motility studies using lab-on-a-chip technology

Yüce, Merve. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Bacterial resistance in pathogens is a worldwide challenge associated with high mortality. The aim was to use microfluidic technology for two different applications in the fight with bacterial resistance. In the first part ...
Kinetics of free radical bulk polymerization of methyl methacrylate

Hamurcu, Elif Gürel. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1990., 1990.)

In this work, the free radical bulk polymerization of methyl methacrylate was studied at 22.5°C. Polymerization reactions were initiated by thermal decomposition of 2,2 -azobisisobutyronitrile (AIBN). Full range of conversion ...
Characterization of the effect of critical cathode design parameters on the lithium sulfur cell resistance using electrochemical impedance spectroscopy

Karakuş, Ayşegül. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Lithium-sulfur batteries have gained significant attention as an alternative for Li-ion batteries for electric vehicle applications in the recent years. This is due to their high theoretical specific energy (2600 Wh/kg) ...
A droplet-based platform for high throughput screening of drug administered cells

Kasım, Müge. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Droplet-based microfluidic systems move forward since 2000s having benefits compared to the conventional methods like improved sensitivity, automated and high throughput operation. This thesis involves a combined approach ...
Identification of the relations between synthesis conditions and compressive strength in geopolymer systems via statistical learning methods

Köse, Kadriye Deniz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Geopolymers are inorganic amorphous materials, which can be used in construction industry, and their production is characterized by low CO2 emission. Compressive strength (CS) is a durability measure, which, in the case ...
Modeling of polymer / ceramic composites via molecular dynamics simulations

Göreke, Melike Dilara. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Polymer-calcium phosphate (CaP) composites arise as alternatives to biological bone substitutes and are widely used as biomaterials. Among various CaP ceramics, hydroxyapatite (HAp), β-tricalcium phosphate (β-TCP) and their ...
Tetronic capped mesoporous silica nanoparticles for drug delivery

Yiğit, Sezi. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

In this study, Tetronic capped mesoporous silica nanoparticles are synthesized and characterized. The efficiency of the gating mechanism is investigated for drug delivery purposes. For this reason, mesoporous silica ...
Data mining for methane adsorption over metal organic frameworks in literature

Gülsoy Şerif, Kadriye Zeynep. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

A database containing 3000 data points for both gravimetric and volumetric CH4 storage/delivery in metal organic frameworks (MOFs) was analysed using machine learning tools via RStudio functions to extract knowledge for ...
Experimental study on droplet formation using a newtonian and a non-newtonian liquid flowing in a microchannel subject to an AC electric field

Ağanoğlu, Yiğit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

The aim of this work is to experimentally investigate the electrohydrodynamic instability and droplet formation between two immiscible liquids flowing in a microchannel. When two immiscible liquids are pumped into a ...
Ligand docking to proteins undergoing large conformational changes

Üçkan, Damla. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Conformational transitions and ligand binding to the enzyme adenylate kinase were investigated by computational docking. Autodock was used to investigate the dynamics of 92 atomistic conformers, which have been previously ...
Parametric investigation of Ru-based catalysts for CO2 reforming of glycerol

Özden, Mert. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

Glycerol is the major side product of the biodiesel production via transesteriﬁ cation. Reforming processes of glycerol has started to draw attention due to increased biodiesel demand in the world. Apart from conventional ...
Performance analysis of a controlled multi-purpose chemical plant

Konukman, Alp Er Şevki. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1989., 1989.)

An available package was used as the basis of this work and it was further developed to obtain the CHPDSC package introduced in this study to investigate the dynamic behaviour of a typical multi-purpose chemical plant at ...

Now showing items 1201-1220 of 3863

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