Biomedizinische Technik
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#1Nikiforos Okkalidis (University of Malta)H-Index: 2
#2Kenneth P. Camilleri (University of Malta)H-Index: 13
Last. Owen Falzon (University of Malta)H-Index: 8
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The use of foot mounted inertial and other auxiliary sensors for kinematic gait analysis has been extensively investigated during the last years. Although, these sensors still yield less accurate results than those obtained employing optical motion capture systems, the miniaturization and their low cost have allowed the estimation of kinematic spatiotemporal parameters in laboratory conditions and real life scenarios. The aim of this work was to present a comprehensive approach of this scientifi...
#1Tanja Grobecker-Karl (Saarland University)H-Index: 3
#2Matthias Karl (Saarland University)H-Index: 19
Last. Constanze Steiner (Saarland University)
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The goal of this in vitro study was to determine the insertion torque/time integral for three implant systems. Bone level implants (n = 10; BLT - Straumann Bone Level Tapered 4.1 mm × 12 mm, V3 - MIS V3 3.9 mm × 11.5 mm, ASTRA - Dentsply-Sirona ASTRA TX 4.0 mm × 13 mm) were placed in polyurethane foam material consisting of a trabecular and a cortical layer applying protocols for medium quality bone. Besides measuring maximum insertion torque and primary implant stability using resonance frequen...
#1Suleyman Bilgin (Akdeniz University)H-Index: 6
#2Hamza Feza Carlak (Akdeniz University)H-Index: 1
Last. Hilmi Uysal (Akdeniz University)H-Index: 14
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Spasticity is one of the major problems that arise in different neurological diseases and seriously affect the quality of human life. Research on the understanding of mechanism of spasticity remains as important as the studies on the spasticity therapy and rehabilitation. In this study, the spasticity mechanism which develops concerning the upper motor neuron lesions is investigated by modelling "Patella tendon reflex triggered patella pendulum". The mathematical model based on the pendulum phen...
#1Kayode P. Ayodele (OAU: Obafemi Awolowo University)H-Index: 5
#2Eniola A. Akinboboye (OAU: Obafemi Awolowo University)
Last. Morenikeji A. Komolafe (OAU: Obafemi Awolowo University)H-Index: 13
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Objectives In this study, the performance of OpenBCI, a low-cost bio-amplifier, is assessed when used for 3D motion reconstruction. Methods Eleven scalp electrode locations from three subjects were used, with sampling rate of 125 Hz, subsequently band-pass filtered from 0.5 to 40 Hz. After segmentation into epochs, information-rich frequency ranges were determined using filter bank common spatial filter. Simultaneously, the actual hand motions of subjects were captured using a Microsoft Kinect s...
#1Byuckjin Lee (Hyundai Mobis)
#2Byeongnam Kim (Yonsei University)H-Index: 3
Last. Sun K. Yoo (Yonsei University)H-Index: 19
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Objectives The phase characteristics of the representative frequency components of the Electroencephalogram (EEG) can be a means of understanding the brain functions of human senses and perception. In this paper, we found out that visual evoked potential (VEP) is composed of the dominant multi-band component signals of the EEG through the experiment. Methods We analyzed the characteristics of VEP based on the theory that brain evoked potentials can be decomposed into phase synchronized signals. ...
#1Wenqiang Yan (Xi'an Jiaotong University)
#2Guanghua Xu (Xi'an Jiaotong University)
Objectives The best frequency response band for the steady-state visual evoked potential (SSVEP) stimulus for humans is limited. This results in a reduced number of encoded targets. Methods To circumvent these limitations, we propose a motion-coupled, steady-state motion visual evoked potential (SSMVEP) method. We designed a stimulus paradigm that couples both sinusoidal and square wave motions. The paradigm performs a spiral motion with a higher frequency in the form of sinusoidal wave, and alt...
#1Tawfik Yahya (UM: University of Malaya)
#2Nur Azah Hamzaid (UM: University of Malaya)H-Index: 10
Last. Hanie Nadia Shasmin (UM: University of Malaya)H-Index: 6
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A transfemoral prosthesis is required to assist amputees to perform the activity of daily living (ADL). The passive prosthesis has some drawbacks such as utilization of high metabolic energy. In contrast, the active prosthesis consumes less metabolic energy and offers better performance. However, the recent active prosthesis uses surface electromyography as its sensory system which has weak signals with microvolt-level intensity and requires a lot of computation to extract features. This paper f...
#1Asma Ayadi (Tunis University)H-Index: 1
#2Wassila Sahtout (University of Sfax)H-Index: 1
Last. Olivier Balédent (University of Picardie Jules Verne)H-Index: 16
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Objectives Local wave speed is a biomarker which provides an objective analysis of the cardiovascular function. The aim of this study was to determine the local wave speed in the internal carotid artery by a new non-invasive method that measures blood velocity waveform at only one site. Methods For this purpose, the cepstral analysis was employed to determine the arrival time of the reflection wave and the wave speed in the carotid artery. To validate our model, we applied it experimentally in v...
#1André G. Próspero (UNESP: Sao Paulo State University)H-Index: 4
#2Guilherme A. Soares (UNESP: Sao Paulo State University)H-Index: 1
Last. José Ricardo de Arruda Miranda (UNESP: Sao Paulo State University)H-Index: 12
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: Cerebral blood flow (CBF) assessment is mainly performed by scintigraphy, computed tomography (CT) and magnetic resonance imaging (MRI). New approaches to assess the CBF through the passage of magnetic nanoparticles (MNPs) to blood-brain barrier (BBB) are convenient to help decrease the use of ionizing radiation and unleash the required MRI schedule in clinics. The development of nanomedicine and new biomedical devices, such as the magnetic particle imaging (MPI), enabled new approaches to stu...
#1Mohamed Rouis (University of Biskra)H-Index: 1
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The greatest problem with recording heart sounds is parasitic noise effects. A reasonable solution to reduce noise can be carried out by minimization of extraneous noises in the vicinity of the patient during recording, in addition to the methods of signal processing that must be effective in noisy environments. Wavelet transform has become an essential tool for many applications, but its effectiveness is influenced by main parameters. Determination of mother wavelet function and decomposition l...
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