Başlık için Elektrik - Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering listeleme
Toplam kayıt 103, listelenen: 1-20
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1.1-GHz SESAM-Modelocked Femtosecond Yb:YLF Laser
(Optica, 2024)We report the first GHz Yb:YLF laser generating 210 fs long pulses at 40 mW average power output from a low-cost, self-starting, single-mode diode pumped cavity with integrated relative intensity noise <0.45%. -
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) ... -
Advantages of pulse-train excitation in narrow-band terahertz generation: mitigation of undesired nonlinear effects
(Optica Publishing Group, 2024)In this work, we have studied the limitations of narrowband multi-cycle (MC) terahertz (THz) generation via optical rectification (OR) in periodically poled lithium niobate (PPLN) crystals. Detailed investigation of the ... -
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 ... -
Assessment of electromagnetic shielding efficacy of magnetic metal oxide nanoparticles and their application in electromagnetic shielding paints
(Chemistry Europe, 2024)People are continuously exposed to electromagnetic waves emitted by mobile phones, base stations, computers, household electrical appliances, and nearby devices. Shielding against electromagnetic radiation is of great ... -
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 ... -
Broadly tunable two-color lasing of Cr:LiCAF with on-surface and off-surface optical axis birefringent filters: performance comparison
(Applied Optics, 2022)We studied the two-color lasing performance of a Cr:LiCAF laser using crystal quartz on-surface and off-surface optical axis birefringent filters (BRFs). Four different on-surface optical axis BRFs with thicknesses of 2 ... -
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 ... -
Challenges in power scaling of Cr:LiCAF lasers: effect of passive losses
(Optica, 2024)In this work, we have investigated the continuous-wave (cw) lasing potential of thin slab-shaped Cr:LiCAF crystals with a low chromium doping level of around 1% and various lengths of 1 to 2 cm. These relatively long ... -
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 ... -
Confounding factor analysis for vocal fold oscillations
(MDPI, 2023)This paper provides a methodology to better understand the relationships between different aspects of vocal fold motion, which are used as features in machine learning-based approaches for detecting respiratory infections ... -
Construction of a miniaturized monosaccharide detection system based on measuring electric current and testing its performance using a bodipy fluorescent dye
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)In this study, a low-cost, miniaturized fluorescence-based measurement system for optical biosensors has been developed. A 3D-printed setup with a blue light-emitting diode (LED) and photodiode was used for electrical ... -
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 ... -
D-SEAD: a novel multi-access multi-dimensional transmission technique for doubling the spectral efficiency per area and per device
(RS Open Journal on Innovative Communication Technologies, 2022)The world of today is characterized by a very huge inter-connectivity of data-hungry devices. This imposes on wireless system designers not only developing techniques that are spectrally efficient at the area level where ...
