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Serteyn Aline - - 2014
Capacitive electrodes are a promising alternative to the conventional adhesive electrodes for ECG measurements. They provide more comfort to the patient when integrated in everyday objects (e.g. beds or seats) for long term monitoring. However, the application of capacitive sensors is limited by their high sensitivity to motion artifacts. For ...
Huang Yan-Jun - - 2014
Electroencephalography (EEG) is an important bio-potential, and has been widely applied in clinical applications. The conventional EEG electrode with conductive gels is usually used for measuring EEG. However, the use of conductive gel also encounters with the issue of drying and hardening. Recently, many dry EEG electrode based on different ...
Chen Fei F 1Division of Speech and Hearing Sciences, The University of Hong Kong, Pokfulam, Hong Kong; 2Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, USA; and 3Shanghai Acoustics Laboratory, Institute of Acoustics, Chinese Academy of Sciences, Shanghai, - - 2014
The purpose of this study was to (1) assess the contributions of single-channel noise-reduction (NR) algorithms for improving speech intelligibility for Mandarin-speaking cochlear implant (CI) listeners and (2) examine whether different algorithms perform differently in various environmental noises. Mandarin sentences were corrupted by three types of maskers, including speech-shaped noise, ...
Kopal Jakub J Institute of Chemical Technology, Department of Computing and Control Engineering, Technicka 5, 166 28 Prague 6, Czech Republic. Electronic address: - - 2014
Complex continuous wavelet coherence (WTC) can be used for non-stationary signals, such as electroencephalograms. Areas of the WTC with a coherence higher than the calculated optimal threshold were obtained, and the sum of their areas was used as a criterion to differentiate between groups of experienced insight-focused meditators, calm-focused meditators ...
Daly Ian - - 2014
A fully automated and online artifact removal method for the electroencephalogram (EEG) is developed for use in brain-computer interfacing. The method (FORCe) is based upon a novel combination of wavelet decomposition, independent component analysis, and thresholding. FORCe is able to operate on a small channel set during online EEG acquisition ...
Yu Victoria Y VY Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California - - 2014
In this study, the authors introduce and demonstrate quality control procedures for evaluating the geometric and dosimetric fidelity of dynamic treatment delivery techniques involving treatment couch motion synchronous with gantry and multileaf collimator (MLC). Tests were designed to evaluate positional accuracy, velocity constancy and accuracy for dynamic couch motion under ...
Jacob Soosan S From Dr. Agarwal's Eye Hospital and Eye Research Centre, Chennai, - - 2014
Compromised visibility is problematic with Descemet membrane endothelial keratoplasty (DMEK), especially in the presence of corneal edema. Visibility may be enhanced by dehydrating the cornea preoperatively and by debriding the epithelium, staining the graft, and using a handheld slitlamp during surgery. Because the DMEK graft is transparent, thin, and flimsy, ...
Kameyama Saho S Graduate School of Informatics, Kyoto University, Kyoto 606-8501, - - 2014
A simple discrimination method between Delphinidae and Phocoenidae based on the comparison of the intensity ratios of two band frequencies (130 and 70 kHz) is proposed. Biosonar signals were recorded at the Istanbul Strait (Bosphorus) in Turkey. Simultaneously, the presence of the species was confirmed by visual observation. Two types ...
Liu Zhen - - 2014
When a train is running on uneven or curved rails, it generates violent vibrations on the rails. As a result, the light plane of the single-line structured light vision sensor is not vertical, causing errors in rail wear measurements (referred to as vibration errors in this paper). To avoid vibration ...
Shrier Ian - - 2014
Abstract Objectives. To compare paramedics' ability to minimize cervical spine motion during patient transfer onto a vacuum mattress with two stabilization techniques (head squeeze vs. trap squeeze) and two transfer methods (log roll with one assistant (LR2) vs. 3 assistants (LR4)). Methods. We used a crossover design to minimize bias. ...
Bizzarri Anna Rita AR Biophysics and Nanoscience Centre, DEB, Università della Tuscia, Largo dell'Università, I-01100 Viterbo, - - 2014
Atomic force spectroscopy is able to extract kinetic and thermodynamic parameters of biomolecular complexes provided that the registered unbinding force curves could be reliably attributed to the rupture of the specific complex interactions. To this aim, a commonly used strategy is based on the analysis of the stretching features of ...
Goorden Sebastianus A - - 2014
We present a superpixel method for full spatial phase and amplitude control of a light beam using a digital micromirror device (DMD) combined with a spatial filter. We combine square regions of nearby micromirrors into superpixels by low pass filtering in a Fourier plane of the DMD. At each superpixel ...
Mariyappa N N Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India. Electronic address: - - 2014
We adopt the Ensemble Empirical Mode Decomposition (EEMD) method, with an appropriate thresholding on the Intrinsic Mode Functions (IMFs), to denoise the magnetocardiography (MCG) signal. To this end, we discuss the two associated problems that relate to: (i) the amplitude of noise added to the observed signal in the EEMD ...
Sudhagar P P Department of Energy Engineering, Hanyang University, Seoul 133-791, Korea. upaik@hanyang.ac.kr - - 2014
We demonstrate one-step gold nanoparticle (AuNP) coating and the surface nitridation of TiO2 nanowires (TiO2-NWs) to amplify visible-light photon reflection. The surface nitridation of TiO2-NW arrays maximizes the anchoring of AuNPs, and the subsequent reduction of the band gap energy from 3.26 eV to 2.69 eV affords visible-light activity. The ...
Wang J C JC Texas Tech University Health Sciences Center School of - - 2014
Objective: To determine noise intensity during middle-ear aspiration in order to evaluate whether levels can be potentially harmful. Methods: In this prospective, observational study, middle-ear effusion was aspirated following myringotomy using a suction instrument with a probe tube microphone. Sound pressure levels and duration were measured, and frequency domain analysis ...
Dong Xiao-Bin - - 2014
A new three-directional motion compensation-based novel-look-up-table (3DMC-NLUT) based on its shift-invariance and thin-lens properties, is proposed for video hologram generation of three-dimensional (3-D) objects moving with large depth variations in space. The input 3-D video frames are grouped into a set of eight in sequence, where the first and remaining ...
Zhou Chao C Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. - - 2014
Black Nb(4+) self-doped K4Nb6O17 microspheres were prepared for the first time through a facile UV light photoreduction method. By the introduction of Nb(4+), the defective K4Nb6O17 can harvest the full spectrum of visible light as well as near-infrared light. The black K4Nb6O17 microspheres showed improved visible-light-driven photocatalytic H2 production activity. ...
Charrett Thomas O H - - 2014
A new method of acquiring simultaneously the signal and reference channels used for interferometric planar Doppler velocimetry is proposed and demonstrated. The technique uses frequency division multiplexing (FDM) to facilitate the capture of the requisite images on a single camera, and is suitable for time-averaged flow measurements. Furthermore, the approach ...
Krehel Marek M Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Protection and Physiology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland ; ETH Zurich, Swiss Federal Institute of Technology, Department of Information Technology and Electrical Engineering, Gloriastrasse 35, Zurich 8092, - - 2014
In this paper, a textile-based sensing principle for long term photopletysmography (PPG) monitoring is presented. Optical fibers were embroidered into textiles such that out-coupling and in-coupling of light was possible. The "light-in light-out" properties of the textile enabled the spectroscopic characterization of human tissue. For the optimization of the textile ...
Rajaambal Sivaraman S Catalysis Division, National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India. - - 2014
The highly desirable combination of the visible light absorption properties of In1-xGaxN Quantum dots (QD) along with the multifunctionality of ZnO into a single integrated material was prepared for solar harvesting. This is the first report on InGaN QD integrated with ZnO (InGaN@ZnO), synthesized by a highly reproducible, simple combustion ...
Chen Shixiong - - 2014
The interference between the incoming sound wave and the acoustic energy reflected by the tympanic membrane (TM) forms a standing wave in human ear canals. The existence of standing waves causes various problems when measuring otoacoustic emissions (OAEs) that are soft sounds closely related with the functional status of the ...
Swanepoel De Wet DW * Department of Speech-Language Pathology and Audiology , University of Pretoria, Pretoria , South - - 2014
Objective: To determine if a smartphone application could be used as a calibrated screening audiometer with real-time noise monitoring for school screening using automated test sequences. Design: The investigation comprised three studies. Study 1 evaluated calibration accuracy across four Samsung S5301 smartphones (Android v4.0.4) using commercial Sennheiser HD202 headphones. Study ...
Narayanan M M MM Non-destructive Evaluation Division, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, - - 2014
An absolute methodology has been developed for quantification of misalignment of an ultrasonic transducer using a corner-cube retroreflector. The amplitude based and the time of flight (TOF) based C-scans of the reflector are obtained for various misalignments of the transducer. At zero degree orientation of the transducer, the vertical positions ...
Wilms M M Matthias Wilms, Institute of Medical Informatics, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany, E-mail: - - 2014
Objectives: A major problem associated with the irradiation of thoracic and abdominal tumors is respiratory motion. In clinical practice, motion compensation approaches are frequently steered by low-dimensional breathing signals (e.g., spirometry) and patient-specific correspondence models, which are used to estimate the sought internal motion given a signal measurement. Recently, the ...
Villegas Eloy A EA From Laboratorio de Optica (Villegas, Alcon, Artal), Departamento de Física, Universidad de Murcia, and Servicio de Oftalmología (Rubio, Marín), Hospital Universitario Virgen de la Arrixaca El Palmar, Murcia, Spain. Electronic address: - - 2014
To evaluate efficacy, predictability, and stability of refractive treatments using light-adjustable intraocular lenses (IOLs). University Hospital Virgen de la Arrixaca, Murcia, Spain. Prospective nonrandomized clinical trial. Eyes with a light-adjustable IOL (LAL) were treated with spatial intensity profiles to correct refractive errors. The effective changes in refraction in the light-adjustable ...
King Daniel - - 2014
An empirically based peak-detection technique is described for statistically analyzing single ultrasound contrast agent collapses. It is shown that microbubbles with postexcitation collapse initially exhibit a stronger principal response on average than those without postexcitation, and that lower insonifying frequencies lead to postexcitation signals which have greater separation from their ...
Bezat Marie-Céline MC PSA Peugeot-Citroen, 2 route de Gisy 78943 Velizy-Villacoublay, - - 2014
This article describes the first part of a study aiming at adapting the mechanical car door construction to the drivers' expectancies in terms of perceived quality of cars deduced from car door sounds. A perceptual cartography of car door sounds is obtained from various listening tests aiming at revealing both ...
Wu Liang L The Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an 710049, People's Republic of - - 2014
Understanding the sound transmission of the neck tissue is necessary and important in areas such as vocal function evaluation and electrolarynx improvement. In this paper, a simple method using a reflectionless tube was proposed to measure the neck frequency response function (NFRF) of ten normal subjects (five males and five ...
Krishna Yedhu - - 2014
Log-ratio detection is a convenient technique for making temperature and concentration measurements using sensors based on tunable diode laser absorption spectroscopy. In many practical sensing applications, it is difficult to avoid stray light falling on the signal photodiode of the sensor. This stray light acts as noncommon-mode interference and introduces ...
Swirniak Grzegorz - - 2014
The aim of this paper is to discuss the possibility of a noninvasive, optical characterization of a transparent (glass) fiber on the basis of scattered light in the vicinity of a primary rainbow. Computational studies show that with the use of a spectrally adjusted incident beam of light, it is ...
Finlayson Graham - - 2014
Solid state lighting is becoming a popular light source for color vision experiments. One of the advantages of light emitting diodes (LEDs) is the possibility to shape the target light spectrum according to the experimenter's needs. In this paper, we present a method for creating metameric lights with an LED-based ...
Lawless I M IM Biomechanics and Implants Research Group, Medical Device Research Institute, School of Computer Science, Engineering and Mathematics, Flinders University, - - 2014
Robotic biomechanics is a powerful tool for further developing our understanding of biological joints, tissues and their repair. Both velocity-based and hybrid force control methods have been applied to biomechanics but the complex and non-linear properties of joints have limited these to slow or stepwise loading, which may not capture ...
Gradolewski Dawid D Department of Mechatronics and High Voltage Engineering, Gdansk University of Technology, Gdansk, Poland. Electronic address: - - 2014
The main obstacle in development of intelligent autodiagnosis medical systems based on the analysis of phonocardiography (PCG) signals is noise. The noise can be caused by digestive and respiration sounds, movements or even signals from the surrounding environment and it is characterized by wide frequency and intensity spectrum. This spectrum ...
Yu Hong H Department of Otolaryngology, Head and Neck Surgery, First Hospital of Jilin University , Changchun , - - 2014
Abstract Conclusion: Noise induced by drilling during cochleostomy is of high level and can cause acoustic trauma to the inner ear, particularly after the membranous labyrinth has been exposed. Our method utilizes non-invasive noise measurement and the equipment that is connected to the operative area can be sterilized, thus it ...
Beall Erik B EB Imaging Institute, Cleveland Clinic, 9500 Euclid Ave., Cleveland, OH 44195, USA. Electronic address: - - 2014
Head motion in functional MRI and resting-state MRI is a major problem. Existing methods do not robustly reflect the true level of motion artifact for in vivo fMRI data. The primary issue is that current methods assume motion is synchronized to the volume acquisition and thus ignore intra-volume motion. This ...
Till Ugo U Université de Toulouse, UPS/CNRS, IMRCP, 118 route de Narbonne, 31062, Toulouse Cedex 9, - - 2014
Polymersomes formed from amphiphilic block copolymers, such as poly(ethyleneoxide-b-ε-caprolactone) (PEO-b-PCL) or poly(ethyleneoxide-b-methylmethacrylate), were characterized by asymmetrical flow field-flow fractionation coupled with quasi-elastic light scattering (QELS), multi-angle light scattering (MALS), and refractive index detection, leading to the determination of their size, shape, and molecular weight. The method was cross-examined with more ...
Moretti Jared D JD Pyrotechnics Technology & Prototyping Division, US Army, RDECOM-ARDEC, Picatinny Arsenal, NJ 07806-5000, Fax: (+1) 973-724-7535 - - 2014
The development of perchlorate-free M662 40 mm illuminating pyrotechnic compositions is described. On the bases of cost, performance, and sensitivity, potassium periodate was determined to be most effective potassium perchlorate replacement in the compositions tested. The optimal periodate-based composition exceeded the performance of the perchlorate-containing control, exhibited low sensitivity values to ...
J Freeston F aUniversity of Sydney, Cumberland Campus, 75 East Street, Lidcombe, NSW, 1825 - - 2014
Understanding factors that influence throwing speed and accuracy is critical to performance in baseball. Shoulder proprioception has been implicated in the injury risk of throwing athletes but no such link has been established with performance outcomes. The purpose of this study was to describe any relation between shoulder proprioception acuity ...
Sharma Priyanka P Z. H. College of Engineering and Technology, Aligarh Muslim University, Aligarh, Uttar Pradesh, - - 2014
The detection of nonconvulsive seizures (NCSz) is a challenge because of the lack of physical symptoms, which may delay the diagnosis of the disease. Many researchers have reported automatic detection of seizures. However, few investigators have concentrated on detection of NCSz. This article proposes a method for reliable detection of ...
Wang Bo - - 2014
We propose and realize a simple technique to measure the tiny spin Hall effect of light from the ratio of the minimum and the maximum intensities along two cross-polarization directions, without the requirement of a position-sensitive detector in the conventional weak measurement. Furthermore, the weak intensity ratio is dramatically amplified ...
Gao Peng - - 2014
In this Letter, we propose a method for retrieving the phase of a wavefront from the diffraction patterns recorded when the object is sequentially illuminated by spatially modulated light. For wavefronts having a smooth phase, the retrieval is achieved by using a deterministic method. When the phase has discontinuities, an ...
Pizá Alvaro G AG Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, and Departamento de Bioingeniería, Facultad de Ciencias Exactas y Tecnología, UNT. Av. Independencia 1800, 4000-San Miguel de Tucumán, Argentina; Laboratorio de Medios e Interfases (LAMEIN), Universidad Nacional de Tucumán, Argentina. Electronic address: - - 2014
Often, the first problem that the neuroscientist must face is to determine if a specific stimulus set applied to biological system produces specific, precise and well differentiated responses. New Method: In the present study we have proposed four discriminability measures to evaluate the feasibility of differentiating experimental conditions: Information measures ...
Bagheri Abdollah A Laboratory for Nondestructive Evaluation and Structural Health Monitoring Studies, Department of Civil and Environmental Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, - - 2014
The processing of biosignals is increasingly being utilized in ambulatory situations in order to extract significant signals' features that can help in clinical diagnosis. However, this task is hampered by the fact that biomedical signals exhibit a complex behavior characterized by strong nonlinear and non-stationary properties that cannot always be ...
Krause David A DA Department of Physical Medicine and Rehabilitation, Program in Physical Therapy, Mayo Clinic College of Medicine, 200 1st Avenue SW, Rochester, MN, 550905, USA, - - 2014
Assessment of hip internal rotation (IR) is a critical element in the evaluation of a painful hip, yet there currently exists no consistent method of determining this measurement. The purpose of this study is to report the intra-rater and inter-rater reliability of active and passive hip IR measurement using a ...
Yan Zengqiang - - 2014
Three-dimensional reconstruction of a dynamic object based on the structured light (SL) technique has attracted intensive research. Since a single projector only covers a limited area of the scene, multiple projectors should be employed simultaneously to extend the imaging area for a 3D object. However, patterns projected by different projectors ...
Baczynska K A KA Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxfordshire OX11 0RQ, UK - - 2014
The methods of the dark signal determination by direct contemporaneous measurements using a light spectrum and modelling of the dark signal based on the dark signal characterisation data were discussed. These techniques were tested with two charge-couple detectors (CCD) array spectroradiometers used in solar UVR measurements. The sensitivity of both ...
Zhou Yangzhong Y 1] Pittsburgh Institute for Neurodegenerative Diseases, University of Pittsburgh, Pittsburgh, Pennsylvania, USA. [2] Department of Neurology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA. [3] Tsinghua University Medical School, Beijing, - - 2014
This article describes a method to quantify the movements of larval zebrafish in multiwell plates, using the open-source MATLAB applications LSRtrack and LSRanalyze. The protocol comprises four stages: generation of high-quality, flatly illuminated video recordings with exposure settings that facilitate object recognition; analysis of the resulting recordings using tools provided ...
Xu Tailin - - 2014
The use of the ultrasound field for rapid and reversible control of the movement of bubble-propelled chemically-powered PEDOT/Ni/Pt microengines is demonstrated. Such operation reflects the ultrasound-induced disruption of normal bubble evolution and ejec-tion, essential for efficient propulsion of catalytic micro-tubular engines. It offers precise speed control, with sharp increases and ...
Francart Tom T KU Leuven, Department of Neurosciences, ExpORL, O&N2, Herestraat 49 Bus 721, 3000, Leuven, Belgium, - - 2014
Interaural timing cues are important for sound source localization and for binaural unmasking of speech that is spatially separated from interfering sounds. Users of a cochlear implant (CI) with residual hearing in the non-implanted ear (bimodal listeners) can only make very limited use of interaural timing cues with their clinical ...
de Cheveigné Alain A Laboratoire des Systèmes Perceptifs, UMR 8248, CNRS, France; Département d'Etudes Cognitives, Ecole Normale Supérieure, France; University College London, UK. Electronic address: - - 2014
We review a simple yet versatile approach for the analysis of multichannel data, focusing in particular on brain signals measured with EEG, MEG, ECoG, LFP or optical imaging. Sensors are combined linearly with weights that are chosen to provide optimal signal-to-noise ratio. Signal and noise can be variably defined to ...
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