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Biyomedikal Mühendisliği Enstitüsü: Recent submissions

Now showing items 161-180 of 423

Load independent trajectory control for an artificial muscle

Yaman, Alper. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2003., 2003.)

In this study, the hysteretic characteristics of pneumatic McKibben artificial muscle were investigated to develop an alternative trajectory control method to traditional PID (Proportional-Integral-Derivative) controller ...
Microsphere based optical biosensors

İşçi, Şenol. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2003., 2003.)

Optical microsphere resonators have recently utilized in quantum optics, laser science, spectroscopy, and optoelectronics and attracted increasing interest due to their unique optical properties. Microspheres possess high ...
Time-frequency analysis of event related brain potentials elicited with four different cognitive paradigms

Keskin, H. Yasemin. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2003., 2003.)

Event related potentials (ERPs), which reflect fundamental cognitive operations, are generated by the parallel and/or the sequential processing of different neural groups in the brain. In time domain representation of ERPs, ...
Fatigue related EMG power spectrum changes during dynamic contractions in female rowers

Uzun, Selda (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2002., 2002.)

The Surface Electrompography (SEMG) signal allows a good assessment of meuromuscular activity a noninvasive tool. While muscle fatigef is a complex multifaceted phenomenon, in sedentary subjects it is characterized by ...
Classification of lung sounds using wavelet-based neural networks

Yeğiner, Mete. (Thesis (M.S.) - Bogazici University. Institute of Biomedical Engineering, 2002., 2002.)

Computer-based systems for diagnosing diseases have been widely used in various areas of medicine in the last decades and similar studies have been performed to parameterize and increase the reliability of lung-sound based ...
Development of a recurrent netural network based estimation algorithms for ankle power by using surface EMG

Atal, Alper. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

Estimation of ankle power can be used in identification of gait abnormalities and establishing timings of net power generation in powered prosthetic devices. Cur rent inverse dynamics calculations of ankle power rely on ...
Cardiac motion analysis in MRI for classification

Göksel, Dilek. (Thesis (M.S.) - Bogazici University. Institue of Biomedical Engineering, 2002., 2002.)

Although several techniques exist for the analysis of cardiac tagged MR images, a rapid screening tool do not yet exits. Our proposed technique tries to perform rapid classification to diagnose the abnormalities in human ...
Predicting epileptic seizures of pediatric patients using phase-amplitude coupling and deep learning

Alqam, Lina Mahmoud Saleh. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

Epilepsy is one of the most prevalent neurological disorders in the world. It is estimated that between four and six children out of every thousand suffer from epilepsy. Visually diagnosing seizure activity can be challenging ...
Design of a vibrotactile balance support system with a virtual reality training program

Aras, Enes Tarık. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

This thesis aims to design a vibrotactile feedback(VTF) system to help balance rehabilitation with virtual reality (VR) training. First, the training program was built in a virtual reality platform by using Unity3D and ...
Correction of artifacts in formalin-fixed paraffin-embedded tissue section images with contrastive unpaired image-to-image translation

Kassab, Mohamad. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

Formalin-fixation and paraffin-embedding (FFPE) is a specimen preparation and preser vation technique that has been used in histology and pathology since the late 19th cen tury. Because the preparation of FFPE specimens ...
Development of polymer-lipid hybrid nanoparticles for anticancer drug delivery

Salel, Sedef. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

The challenge of conventional cancer treatment is the side effects caused by the chemotherapeutic drugs. To prevent these side effects, nanocarrier systems can be designed to have functions of controlled and selective drug ...
Optimization of a microfluidic chip design for neuroblastoma cells and their microenvironment studies

Gökmen, Kübra. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

Investigating each structural part of a neuron is crucial for clarifying the com plex working mechanism of the nervous system. Isolation of axons from their cell bodies plays an important role in understanding synapse ...
Similarity - based analysis of FDG-PET images of alzheimer's disesase patients :|a method for automated diagnosis and severity prediction with the aim of therapy response monitoring

Yüksel, Ceren. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

This study aimed to evaluate 18-Fluorodeoxyglucose positron emission tomog raphy (18F-FDG-PET) images of the brain for the computer-aided characterization detection of Alzheimer’s disease (AD) intuitive image similarity- ...
Investigation of ablation efficiency and temperature distribution profile of 1940 NM thulium fiber laser on EX vivo ovine liver tissue

Ertan, Ayça. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

In liver surgeries, lasers with different wavelengths are used to make incisions and excisions with minimal bleeding and pain. The purpose of this study is to examine the efficiency of a 1940 nm Thulium fiber laser in the ...
Development of primary keratinocyte cell culture method on fibrin matrix

Okatar, Bilal Enes. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

The use of cultured epithelial grafts in major burn cases is a promising alter native. Keratinocyte cells have the ability to proliferate and form an epithelial layer when suitable conditions are provided and simulate as ...
Time-frequency analysis of somatosensory potentials evoked by vibrotactile stimulation of the fingertip

Mahmat, Kutluhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2022.)

Tactile sensory feedback has become an essential topic for neural engineering to model advanced neuroprostheses providing artificial sensations. For this purpose, it is required to understand human brain activity related ...
The effect of titanium surface topography on biocompatibility, hemocompatibility, and bacterial behavior

Sakallı, Tuğba Ecem. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

Titanium and Ti alloys are widely used in several biomedical applications in cluding cardiovascular stents, shoulder, hip replacement and dentistry. Ti and its alloys are preferred biomaterials, due to their mechanical, ...
Radiomics analysis of 3D computed tomography images for predicting the ISUP grade of clear cell renal cell carcinoma tumors

Karagöz, Ahmet. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

Renal cell carcinoma (RCC) constitutes %85 to %90 of all kidney malignancies. In 2020, 430,000 new cases were diagnosed and 179,000 of them lost their lives. Clear cell renal cell carcinoma (ccRCC) is the most common ...
Atlas guided neurosurgery

Aksel, Ertuğrul Burteçin. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2001., 2001.)

In this work, a computer interface is developed to deform atlas overlays, so as to make them fit to a certain case, namely a particular patient's anatomy for pre-operational target determination for neurosurgeries. The ...
Emotion recognition of EEG data using tensor logistic regression

Cansu, İbrahim. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

Emotion recognition is a research area gaining momentum in the last three decades with a strong impact on our daily life. One of the most widely used methods to study emotion recognition is using physiological signals such ...

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