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PID controller design to generate pulsatile flow rate for in vitro experimental studies of physiological flows

Najjari MR, Plesniak M

  • Biomed Eng Lett.
  • 2017 Nov;7(4):339-344.
  • doi: 10.1007/s13534-017-0049-9
Producing accurate pulsatile flow rates is essential for many in vitro experimental studies in biofluid dynamics research. A controller system was developed to control a flow loop to produce easily...
Variations in gait features in elderly adults during walking considering their balance

Choi HJ, Kim HS, Ryu J, Kim G, Ko CY

  • Biomed Eng Lett.
  • 2017 Nov;7(4):333-338.
  • doi: 10.1007/s13534-017-0045-0
The aim of this study was to evaluate the influence of balance on the spatiotemporal features, lower-limb kinematics, and center of mass (COM) of the non-faller elderly during walking. In...
ECG arrhythmia classification using time frequency distribution techniques

Sultan Qurraie S, Ghorbani Afkhami R

  • Biomed Eng Lett.
  • 2017 Nov;7(4):325-332.
  • doi: 10.1007/s13534-017-0043-2
In this paper, we focus on classifying cardiac arrhythmias. The MIT-BIH database is used with 14 original classes of labeling which is then mapped into 5 more general classes, using...
Dielectrophoretic force measurement of red blood cells exposed to oxidative stress using optical tweezers and a microfluidic chip

Jeon HJ, Lee H, Yoon DS, Kim BM

  • Biomed Eng Lett.
  • 2017 Nov;7(4):317-323.
  • doi: 10.1007/s13534-017-0041-4
Red blood cell (RBC) dysfunction is often associated with a pathological intervention, and it has been proposed as a critical risk factor for certain lethal diseases. Examining the cell viability...
Transscleral LED illumination pen

Lingenfelder C, Koch F, Koelbl P, Klante P, Hessling M

  • Biomed Eng Lett.
  • 2017 Nov;7(4):311-315.
  • doi: 10.1007/s13534-017-0039-y
Existing light sources for intraocular illumination are often bulky and expensive and pose a risk for the patient, because light guides are inserted in the eye through incisions and if...
Sex differences of cognitive load effects on object-location binding memory

Park J, Shin GI, Park YM, Kim IY, Jang DP

  • Biomed Eng Lett.
  • 2017 Nov;7(4):305-309.
  • doi: 10.1007/s13534-017-0038-z
In this study, we investigated where the sex differences of object-location binding memory performance were influenced by the cognitive load. We used the fractal objects version of the ‘What was...
Novel tailoring algorithm for abrupt motion artifact removal in photoplethysmogram signals

Pu L, Chacon PJ, Wu HC, Choi JW

  • Biomed Eng Lett.
  • 2017 Nov;7(4):299-304.
  • doi: 10.1007/s13534-017-0037-0
Photoplethysmogram (PPG) signals are widely used for wearable electronic devices nowadays. The PPG signal is extremely sensitive to the motion artifacts (MAs) caused by the subject's movement. The detection and...
Real-time biofeedback device for gait rehabilitation of post-stroke patients

Khoo IH, Marayong P, Krishnan V, Balagtas M, Rojas O, Leyba K

  • Biomed Eng Lett.
  • 2017 Nov;7(4):287-298.
  • doi: 10.1007/s13534-017-0036-1
In this work, we develop a device, called ‘Walk-Even’, that can provide real-time feedback to correct gait asymmetry commonly exhibited in post-stroke survivors and persons with certain neurological disorders. The...
Flickering exercise video produces mirror neuron system (MNS) activation and steady state visually evoked potentials (SSVEPs)

Lim H, Ku J

  • Biomed Eng Lett.
  • 2017 Nov;7(4):281-286.
  • doi: 10.1007/s13534-017-0035-2
The action of observing can be used as an effective rehabilitation paradigm, because it activates the mirror neuron system. However, it is difficult to fully use this paradigm because it...
Spectrum analysis for assessing red blood cell aggregation using high-frequency ultrasound array transducer

Yoon C

  • Biomed Eng Lett.
  • 2017 Nov;7(4):273-279.
  • doi: 10.1007/s13534-017-0034-3
The purpose of this study is to investigate a spectrum analysis technique for detecting and monitoring red blood cell (RBC) aggregation using a high-frequency array transducer. To assess the feasibility...

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