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Ogawa Kenjirou - - 2014
Blue light is a high-energy or short-wavelength visible light, which induces retinal diseases such as age-related macular degeneration and retinitis pigmentosa. Bilberry (Vaccinium myrtillus L.) and lingonberry (Vaccinium vitis-idaea) contain high amounts of polyphenols (anthocyanins, resveratrol, and proanthocyanidins) and thus confer health benefits. This study aimed to determine the protective ...
Mok Km K Oslo Sports Trauma Research Center, Norwegian School of Sport Sciences, Oslo, - - 2014
In volleyball, training and match exposure is a risk factor for developing patellar tendinopathy which is known as jumper's knee. The frequency of jumping is an indicator of the intensity of jumping activity in training and match. Accelerometer provides measure of time-variant vertical acceleration which can potentially be transformed to ...
Li Yansheng - - 2014
In this paper, a biologically inspired multilevel approach for simultaneously detecting multiple independently moving targets from airborne forward-looking infrared (FLIR) sequences is proposed. Due to the moving platform, low contrast infrared images, and nonrepeatability of the target signature, moving targets detection from FLIR sequences is still an open problem. Avoiding ...
Cia David D UMR Inserm 1107, Laboratoire de Biophysique Neurosensorielle, UFR Pharmacie, Clermont Université, Clermont-Ferrand, - - 2014
Aim: Most Duchenne muscular dystrophy patients and the mdx(Cv3) mouse strain, lacking expression of both dystrophins Dp260 and Dp71, show a high attenuation of the dark-adapted electroretinogram (ERG) b-wave amplitude, whereas mice lacking the expression of Dp260 show normal b-wave amplitude. Here, we completed our assessment of whether the sole ...
Jeong Hyun H Center for Integrated Nanostructure Physics, Institute for Basic Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea. - - 2014
We investigate the mechanism of light extraction enhancement of a GaN-based light-emitting diode (LED) grown on patterned sapphire substrate (PSS), that has ZnO nanorod arrays (NRAs) fabricated on top of the device using the hydrothermal method. We found that the light output power of the LED with ZnO NRAs increases ...
Borst Alexander A Max Planck Institute of Neurobiology, Systems and Computational Neuroscience , Martinsried , - - 2014
Detecting the direction of image motion is a fundamental component of visual computation and is essential for survival of the animal. However, at the level of the photoreceptors, the direction in which the image is shifting locally is not explicitly represented. Rather, directional motion information needs to be extracted from ...
Yousefi Rasoul - - 2014
The performance of portable and wearable biosensors is highly influenced by motion artifact. In this paper, a novel real-time adaptive algorithm is proposed for accurate motion-tolerant extraction of heart rate (HR) and pulse oximeter oxygen saturation ( SpO2) from wearable photoplethysmographic (PPG) biosensors. The proposed algorithm removes motion artifact due ...
Zeng Yang Y Institute of Solar Energy, and Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, - - 2014
We demonstrate improved short-wavelength internal quantum efficiency (IQE) of a-Si/c-Si heterojunction (HJ) solar cells with a surface nanopillar (NP) array via simulation. The gain in IQE is attributed to the light-field modulation caused by the cavity resonance inside the NPs, in which the light energy is effectively localized within the ...
Toft-Nielsen Jonathon J University of Miami, Dept. Biomedical Engineering, PO Box 248294, Coral Gables, FL 33124, United States; JÖRVEC Corp., Miami, FL, 6860 SW 81 St, Miami, FL 33143, United - - 2014
Due to overlapping, temporal information is mostly lost in high rate steady-state pattern electroretinograms (PERGSS). This study develops a deconvolution method and a display/recording system to "unwrap" PERGSS and obtain a transient, "per stimulus" response (PERGtr) regardless of reversal rate. Processing and instrumentation, including high temporal resolution display and acquisition ...
Churchill Tyler H TH Waisman Center, University of Wisconsin-Madison, 1500 Highland Avenue #521, Madison, WI, 53705, USA, - - 2014
A cochlear implant (CI) presents band-pass-filtered acoustic envelope information by modulating current pulse train levels. Similarly, a vocoder presents envelope information by modulating an acoustic carrier. By studying how normal hearing (NH) listeners are able to understand degraded speech signals with a vocoder, the parameters that best simulate electric hearing ...
Ahmad Nadzri Ahmad Akmal Bin AA Department of Electrical and Electronic Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia, - - 2014
Surface electromyography (SEMG) signals can provide important information for prosthetic hand control application. In this study, time domain (TD) features were used in extracting information from the SEMG signal in determining hand motions and stages of contraction (start, middle and end). Data were collected from ten healthy subjects. Two muscles, ...
Wei Tongbo - - 2014
Large-scale SiO<sub>2</sub> nanodisk arrays fabricated by nanospherical-lens lithography are embedded in the n-GaN and p-GaN layer of an InGaN/GaN light-emitting diode (LED) to produce photonic crystal (PC) structures for efficiency improvement. Following the obvious reduction of view angle, the light output power of bottom, top, and double PC LEDs is ...
Kim Jun-Whee - - 2014
The light extraction efficiency of OLEDs with a nano-sized random scattering layer (RSL-OLEDs) was analyzed using the Finite Difference Time Domain (FDTD) method. In contrast to periodic diffraction patterns, the presence of an RSL suppresses the spectral shift with respect to the viewing angle. For FDTD simulation of RSL-OLEDs, a ...
Singh Amritpal S AS Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, - - 2014
Thirty five commercial maple syrups from twelve producers in Southern Ontario were evaluated for properties including light transmittance, autofluorescence, density, pH, total soluble solids (TSS), glucose and fructose content, total phenol content, antioxidant potential and mineral content (Mg, Mn, P, Zn, Ca, K, Fe and Pb). A high degree of ...
Ludwig Casimir J H CJ School of Experimental Psychology, University of Bristol, Bristol BS8 1TU, United - - 2014
Human vision is an active process in which information is sampled during brief periods of stable fixation in between gaze shifts. Foveal analysis serves to identify the currently fixated object and has to be coordinated with a peripheral selection process of the next fixation location. Models of visual search and ...
Sabaikai Waraluk - - 2014
The UV light photo-Fenton degradation of oolong tea polyphenols in tea manufacturing effluent that color the wastewater to a dark brown has been examined. In order to elucidate the photo-Fenton degradation mechanism of oolong tea polyphenols and find the optimal dosages of the Fenton reagents, systematic study has been conducted. ...
Ye-Lin Yiyao Y Grupo de Bioelectrónica (I3BH), Universitat Politècnica de València, Camino de Vera s/n Ed.8B, 46022 Valencia, - - 2014
Electrohysterography (EHG) is a noninvasive technique for monitoring uterine electrical activity. However, the presence of artifacts in the EHG signal may give rise to erroneous interpretations and make it difficult to extract useful information from these recordings. The aim of this work was to develop an automatic system of segmenting ...
Ryu Han-Youl HY Department of Physics, Inha University, Incheon 402-751, Korea. - - 2014
Light extraction efficiency (LEE) of AlGaN-based nanorod deep ultraviolet (UV) light-emitting diodes (LEDs) is numerically investigated using three-dimensional finite-difference time-domain simulations. LEE of deep UV LEDs is limited by strong light absorption in the p-GaN contact layer and total internal reflection. The nanorod structure is found to be quite effective ...
Li Lu L 1] Department of Materials Sciences and Engineering, California NanoSystems Institute, Henry Samuli School of Engineering and Applied Science, University of California, Los Angeles, California 90095 - - 2014
Highly efficient organic light emitting diodes (OLEDs) based on multiple layers of vapor evaporated small molecules, indium tin oxide transparent electrode, and glass substrate have been extensively investigated and are being commercialized. The light extraction from the exciton radiative decay is limited to less than 30% due to plasmonic quenching ...
Fernández-Caballero Antonio A Departamento de Sistemas Informáticos, Universidad de Castilla-La Mancha, 02071-Albacete, Spain. - - 2014
This paper investigates the robustness of a new thermal-infrared pedestrian detection system under different outdoor environmental conditions. In first place the algorithm for pedestrian ROI extraction in thermal-infrared video based on both thermal and motion information is introduced. Then, the evaluation of the proposal is detailed after describing the complete ...
Hsiao Yu-Hsuan YH Institute of Photonics and Optoelectronics & Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan. - - 2013
Syringe-like ZnO nanorods (NRs) were fabricated on InGaN/GaN light emitting diodes (LEDs) by a hydrothermal method. Without sacrificing the electrical performances of LEDs, syringe-like NRs can enhance light extraction capability by 10.5% at 20 mA and shape the radiation profile with a view angle collimated from 136° to 121°. By ...
Todd Juanita J School of Psychology, University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia, - - 2013
Repetitious patterns enable the auditory system to form prediction models specifying the most likely characteristics of subsequent sounds. Pattern deviations elicit mismatch negativity (MMN), the amplitude of which is modulated by the size of the deviation and confidence in the model. Todd et al. (Neuropsychologia 49:3399-3405, 2011; J Neurophysiol 109:99-105, ...
Koshitani Yuki Y Graduate School of Science, - - 2013
Cones are less light-sensitive than rods. We showed previously in carp that more light (>100-fold) is required in cones than in rods to activate 50% of cGMP phosphodiesterase (PDE). The lower effectiveness of PDE activation in carp cones is partly due to the fact that the activation rate of transducin ...
Rideaux Reuben R Research School of Psychology, The Australian National University, Canberra, ACT 0200, Australia. Electronic address: - - 2013
When confronted with multiple moving objects the visual system can process them in two stages: an initial stage in which a limited number of signals are processed in parallel (i.e. simultaneously) followed by a sequential stage. We previously demonstrated that during the simultaneous stage, observers could discriminate between presentations containing ...
Tariq Umayya U Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, - - 2013
Through its impact on morphogenesis, light is the key environmental factor that alters plant architectural development; however, the understanding that how light controls plant growth and developmental processes is still poor and needs further research. In this study, we monitored the effect of various monochromatic lights and plant growth regulators ...
Kim Tae Hyung - - 2013
The effect of the dual-etch surface roughening method consisting of dry etching and wet etching on the enhancement of light extraction of vertical light emitting diodes (VLEDs) is investigated. The surface of a VLED was roughened by dry etching using SiO2 spheres as the mask while a KOH solution was ...
Turrioni Ana Paula S - - 2013
To evaluate the transdentinal light attenuation of LED at three wavelengths through different dentin thicknesses, simulating cavity preparations of different depths. Forty-two dentin discs of three thicknesses (0.2, 0.5 and 1 mm; n = 14) were prepared from the coronal dentin of extracted sound human molars. The discs were illuminated ...
Yin Zhengmao - - 2013
A hybrid ZnO micro-mesh and nanorod arrays (MMNR) was fabricated as a light output window for GaN-based light-emitting diodes (LEDs) to enhance the light extraction efficiency. The light output power of GaN-based LEDs with the ZnO MMNR is improved by 95% compared to the original planar LEDs. The ZnO MMNR ...
Kyaw Zabu - - 2013
Room-temperature large-scale highly ordered nanorod-patterned ZnO films directly integrated on III-nitride light-emitting diodes (LEDs) are proposed and demonstrated via low-cost modified nanoimprinting, avoiding a high-temperature process. with a 600 nm pitch on top of a critical 200 nm thick Imprinting ZnO nanorods of 200 nm in diameter and 200 nm ...
Finneran James J - - 2013
The auditory steady-state response (ASSR) to an external tone was measured in an echolocating dolphin to determine if hearing sensitivity changes could be tracked over time scales corresponding to single click-echo pairs. Individual epochs containing click-echo pairs were first extracted from the instantaneous electroencephalogram. Epochs were coherently averaged using the ...
Yeon Seunghwan - - 2013
We report the enhancement of the photoluminescence (PL) intensity of GaN-based light-emitting diode (LED) structures by using of a surface coating of polystyrene (PS)/silica (SiO2) core-shell nanospheres. PS/SiO2 core-shell nanosphere-coated LEDs show the highest PL intensity among various type LEDs. The relative PL intensity of PS/SiO2 core-shell nanosphere-coated LEDs increased ...
Otsuka Tomohiro - - 2013
Dietary carotenoids exhibit various biological activities, including antioxidative activity. In particular, astaxanthin, a type of carotenoid, is well known as a powerful antioxidant. We investigated whether astaxanthin would protect against light-induced retinal damage. In an in vivo study, ddY male mice were exposed to white light at 8,000 lux for ...
Du Chengxiao - - 2013
Size-controllable p-GaN hexagonal nanopyramids (HnPs)-photonic crystal (PhC) structures were selectively grown on flat p-GaN layer for the elimination of total internal reflection of light-emitting diodes (LEDs). The LEDs with HnPs-PhC of 46.3% bottom fill factor (PhC lattice constant is 730 nm) showed an improved light output power by 99.9% at ...
Albarracin Rizalyn - - 2013
Irradiation with light wavelengths from the far red (FR) to the near infrared (NIR) spectrum (600 nm -1000 nm) has been shown to have beneficial effects in several disease models. In this study, we aim to examine whether 670 nm red light pretreatment can provide protection against hyperoxia-induced damage in ...
Deng Jun - - 2013
Distortion product otoacoustic emissions (DPOAEs) are sound energy generated by healthy inner ears when stimulated by two tones. Since DPOAEs are physiologically related with the functional status of the inner ear, they have been widely used as a clinical tool in hearing screening and diagnoses. Currently, almost all DPOAEs recording ...
Lee Chee-Wei - - 2013
An integrated semiconductor plasmonic nano-ring laser with a connecting output plasmonic waveguide for light extraction is proposed, designed and demonstrated numerically. The maximum light extraction efficiency can be up to 56%. The design was optimized with 2D FDTD and verified with 3D FDTD methods, where close agreement is shown between ...
Green Tim - - 2013
Speech reception thresholds were obtained in normally hearing listeners for sentence targets masked by harmonic complexes constructed with different phase relationships. Maskers had either a constant fundamental frequency (F0), or had F0 changing over time, following a pitch contour extracted from natural speech. The median F0 of the target speech ...
Bi Yan-Gang YG State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P.R. - - 2013
A dual-periodic corrugation consisting of two sets of gratings with different periods to realize a broadband light extraction in white organic light-emitting diodes (WOLEDs) is shown. A 37 % enhancement in current efficiency and 48 % enhancement in the external quantum efficiency compared to those of the conventional planar devices ...
Gong Qin - - 2013
Objective: The frequency-following response (FFR) is the compound phase-locked brainstem response to periodic components of sound stimuli, and is closely related to pitch perception. Its weak amplitude often prevents its measurement with a high signal-to-noise ratio (SNR). Recording of FFR using multichannel EEG is possible but expensive and it involves ...
Lin Jian Hung - - 2013
This work demonstrates the enhancement of light extraction of polymer light-emitting diodes (PLEDs) by incorporating a 12-fold photonic quasi crystal (PQC) in the device structure. Multi-exposure two-beam interference technique combined with inductively coupled plasma etching was employed to pattern a 12-fold PQC structure on the ITO film on a glass ...
Yonehara Keisuke - - 2013
Motion detection in fly vision has been investigated experimentally and theoretically for half of a century, yet mechanistic insights into the neuronal computation have only started to emerge. In a recent issue of Nature, two studies provide major insights into how motion direction is extracted from the image flow projected ...
Robinson Neethu - - 2013
Objective. Studies have shown that low frequency components of brain recordings provide information on voluntary hand movement directions. However, non-invasive techniques face more challenges compared to invasive techniques. Approach. This study presents a novel signal processing technique to extract features from non-invasive electroencephalography (EEG) recordings for classifying voluntary hand movement ...
Matsushita-Ishiodori Yuka - - 2013
Controlled activation of small RNAs, such as small interfering RNA, in cells is very useful for various biological applications. Light is an effective inducer of controlled activation; in particular, near-infrared light is favorable, because it can penetrate deeper into tissues than UV or visible light. In this study, near-infrared light ...
Jürgens Tim - - 2013
Different methods of extracting speech features from an auditory model were systematically investigated in terms of their robustness to different noises. The methods either computed the average firing rate within frequency channels (spectral features) or inter-spike-intervals (timing features) from the simulated auditory nerve response. When used as the front-end for ...
Apoux Frédéric - - 2013
The present study investigated the role and relative contribution of envelope and temporal fine structure (TFS) to sentence recognition in noise. Target and masker stimuli were added at five different signal-to-noise ratios (SNRs) and filtered into 30 contiguous frequency bands. The envelope and TFS were extracted from each band by ...
Wali Mousa Kadhim MK School of Computer and Communication Engineering, University Malaysia - - 2013
[Purpose] In earlier studies of driver distraction, researchers classified distraction into two levels (not distracted, and distracted). This study classified four levels of distraction (neutral, low, medium, high). [Subjects and Methods] Fifty Asian subjects (n=50, 43 males, 7 females), age range 20-35 years, who were free from any disease, participated ...
Roewe Kimberly D - - 2013
The hexagermane Pr(i)3Ge(GePh2)4GePr(i)3 has been synthesized and is not only the first such linear oligogermane to be structurally characterized but also is the first such compound to exhibit fluorescence and dichroic properties when observed under different orientations of plane polarized visible light.
Vogt Caleb - - 2013
Nitric oxide (NO) plays an important role in cardiovascular homeostasis, immune responses, and wound repair. The pro-angiogenic and antimicrobial properties of NO has stimulated the development of NO-releasing materials for wound dressings. Gelatin, an abundant natural biodegradable polymer derived from collagen, is able to promote wound repair. S-Nitroso-N-acetylpenicillamine (SNAP) can ...
Lin Chun-Han - - 2013
For enhancing the light extraction of a light-emitting diode, surface grating fabrication based on a simple method of combining photoelectrochemical (PEC) etching with phase mask interferometry has been demonstrated. To understand the optimum grating period in forming a surface grating on a vertical light-emitting diode (VLED), we construct a Llyod's ...
Luo Yu - - 2013
One economical method for extracting the light loss from both the waveguide mode and substrate is demonstrated. Pillar arrays with different scales are created on the two sides of a silica substrate by inductively coupled plasma etching following a colloidal masking. The quasi-periodic Bragg scattering structure on a silica/ITO interface ...
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