Browsing Elektrik - Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering by Title
Now showing items 1-20 of 63
-
An acoustic blood pressure sensing scheme using time of flight and shear wave elastography techniques
(Sensors and Actuators A-Physical, 2021)A novel wearable blood pressure sensor scheme is presented. The design incorporates an array of piezoelectric transducers to transmit acoustic waves through the skin, and receive reflected echoes from an arterial wall. The ... -
An adhesion-dominated rolling Friction regime unique to micro-scale ball bearings
(Tribology Letters, 2014)We demonstrate that micro-scale rolling bearings exhibit friction and wear properties markedly different from their macro-scale counterparts. A microfabricated testing platform uses variable rolling element diameters or ... -
An advanced non-orthogonal multiple access security technique for future wireless communication networks
(RS Open Journal on Innovative Communication Technologies, 2020)The future wireless communication systems demand much more enhanced security and reliability compared to currently deployed systems. In this work, we propose a much simpler yet more efficient physical layer security (PLS) ... -
Analysis of parameter changes of a neuronal network model using transfer entropy
(International Advanced Researches and Engineering Journal, 2020)Understanding the dynamics of coupled neurons is one of the fundamental problems in the analysis of neuronal model dynamics. The transfer entropy (TE) method is one of the primary analyses to explore the information flow ... -
Autonomous first response drone-based smart rescue system for critical situation management in future wireless networks
(RS Open Journal on Innovative Communication Technologies, 2020)Numerous problems have been experienced due to the current exponential rise in urban population. Such challenges include insecurity and disaster management. It is therefore critical that new and efficient ways of disaster ... -
A belt-integrated piezoelectric energy harvester for wearable electronic devices
(Ferroelectrics, 2021)This paper reports a novel piezoelectric energy harvester incorporated on a waistbelt for power generation from waist movements. The device is composed of multiple piezoelectric disks in 3 D-printed encapsulations and ... -
Bodipy photosensitizer linked hybrid nanomaterials for photodynamic therapy
(Advanced Nanomaterials Congress, 2021)Photodynamic therapy (PDT) is an alternative clinically approved treatment method to obliterate the cancerous lesion by producing reactive oxygen species (ROS) via activated photosensitizer (PS) molecule at a certain ... -
Cellulose acetate encapsulated upconversion nanoparticles – a novel theranostic platform
(Materials Today Communications, 2021)Luminescent upconversion nanoparticles (UCNPs) are of great interest in a wide range of nanotechnological applications, particularly in the biomedical area like imaging and therapy but their biocompatibility and stability ... -
Classifications and applications of physical layer security techniques for confidentiality: a comprehensive survey
(IEEE, 2019)Physical layer security (PLS) has emerged as a new concept and powerful alternative that can complement and may even replace encryption-based approaches, which entail many hurdles and practical problems for future ... -
A compact energy transducer for power generation from respiration
(Journal of Microelectromechanical Systems, 2019)This paper reports a compact magnetic transducer developed for generating electrical power from respiration. The device incorporates a side-drive turbine rotor with embedded permanent magnets and two stators, integrated ... -
CP-less OFDM with alignment signals for enhancing spectral efficiency, reducing latency, and improving PHY security of 5G services
(IEEE Access, 2018)Although orthogonal frequency-division multiplexing (OFDM) is a widely accepted waveform in many standards and is expected to keep its dominance in future 5G systems with various types of parameterized waveforms, its ... -
Cr: Colquiriite Lasers: Current Status and Challenges for Further Progress
(Progress in Quantum Electronics, 2019)Cr: Colquiriite laser materials (Cr:LiCAF, Cr:LiSAF, Cr:LiSGaF) own broad absorption bands in the visible region that allow direct-diode pumping by well-developed low-cost red diodes. Moreover, they possess broad emission ... -
Design and experimental validation of a stress- controlled pressure sensor for wearable pulse monitoring
(2021 IEEE International Symposium on Applications of Ferroelectrics (ISAF), 2021)This paper presents a pulse sensor design scheme with adjustable preset pressure. The design consist of two PVDF layers sandwiching a PZT layer. While PZT is used to detect the pulse vibrations, PVDF layers are employed ... -
The development and performance characterization of turbine prototypes for a MEMS spirometer
(IEEE Sensors Journal, 2016)The design, optimization, and performance characterization of turbine prototypes for the development of a Microelectromechanical Systems spirometer is reported. Four different turbines were designed based on large-scale ... -
An effective design for polar codes over multipath fading channels
(Springer, 2020-01)Polar codes, recently adopted in 5G standard due to their excellent performance at a very low complexity compared to other competitive schemes in the literature, are deemed to be a strong candidate for the Internet of ... -
Effects of neuronal noise on neural communication
(Proceedings, 2019)In this work, we propose an approach to better understand the effects of neuronal noise on neural communication systems. Here, we extend the fundamental Hodgkin-Huxley (HH) model by adding synaptic couplings to represent ... -
Energy harvesting from knee motion using piezoelectric patch transducers
(Academic Platform Journal of Engineering and Science, 2019)This paper presents a piezoelectric energy harvesting device that generates electrical power from knee motion during human gait. The device is composed of two MEMS-based piezoelectric patch transducers optimized for placement ... -
Enhancing the stability of nanotheranostic systems
(5th International Conference on Nanomedicine and Nanotechnology, 2021)Theranostics is new term which defined as a combination of therapy and diagnosis to establish a targeted drug delivery and monitoring of treatment into a single nanosystem. The most important parameter in the theranostic ... -
Fabrication and characterization of TiO2 nanoparticles conjugated luminescence upconversion nanoparticles
(Open Access Journal, 2018)TiO2 nanoparticles conjugated luminescence upconversion (TiO2-UC) nanocomposites have been fabricated by covalently linking of carboxyl-functionalized TiO2 and amino-functionalized NaYF4:Yb3+,Er3+,Ce3+ upconversion ... -
Fluorescence quenching-based bodipy-boronic acid linked viologen dual system for potential glucose sensing applications
(Sensor Review, 2022)Purpose – The purpose of this study is to develop a non-enzymatic based glucose-sensing platform composed of Bodipy-BBV dual system which can be monitored by a photodetector under the blue LED excitation. Design/method ...
