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Tao You-Rong YR Country Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, - - 2014
Two new flexible visible-light photodetectors based on ZrS3 nanobelts films are fabricated on a polypropylene (PP) film and printing paper, respectively, by an adhesive-tape transfer method, and their light-induced electric properties are investigated in detail. The devices demonstrate a remarkable response to 405 to 780 nm light, a photocurrent that ...
Gurari Netta N Robotics, Brain and Cognitive Sciences, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy. Electronic address: - - 2014
The emergence of commercial haptic devices offers new research opportunities to enhance our understanding of the human sensory-motor system. Yet, commercial device capabilities have limitations which need to be addressed. This paper describes the customization of a commercial force feedback device for displaying forces with a precision that exceeds the ...
D'Alonzo Marco - - 2014
Tactile feedback is essential to intuitive control and to promote the sense of self-attribution of a prosthetic limb. Recent findings showed that amputees can be tricked to experience this embodiment, when synchronous and modality-matched stimuli are delivered to biological afferent structures and to an alien rubber hand. Hence it was ...
Shao Dali D Department of Electrical, Computer, and Systems Engineering and ‡Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute , Troy, New York 12180, United - - 2014
An ultraviolet (UV) photodetector is fabricated by sandwiching a nanocomposite active layer between charge-selective semiconducting polymers. The nanocomposite active layer composed of TiO2 nanoparticles (NPs) blended with 1,3-bis(N-carbazolyl)benzene (mCP), which acts as a "valve" controller that enables hole injection into the device upon UV illumination. The UV photodetector demonstrated a ...
Chou Chun-Hsien CH Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu 30010, - - 2014
Over the past decade, we have witnessed rapid advances in the development of organic photovoltaic devices (OPVs). At present, the highest level of efficiency has surpassed 10%, suggesting that OPVs have great potential to become competitive with other thin-film solar technologies. Because plasmonic nanostructures are likely to further improve the ...
Gotostos Mary Jane N MJ a Department of Chemical Engineering , University of the Philippines , Diliman , Quezon City , - - 2014
In this work, a novel photocatalyst K3[Fe(CN)6]/TiO2 synthesized via a simple sol-gel method was utilized to degrade acetaminophen (ACT) under visible light with the use of blue and green LED lights. Parameters (medium pH, initial concentration of reactant, catalyst concentration, temperature, and number of blue LED lights) affecting photocatalytic degradation ...
Chen Hui H College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, Joint Research Laboratory for Functional Organophosphorus, Materials of Henan Province, Zhengzhou University, Zhengzhou 450001 (P. R. - - 2014
The discovery and molecular engineering of novel electroluminescent materials is still a challenge in optoelectronics. In this work, the development of new π-conjugated oligomers incorporating a dihydrophosphete skeleton is reported. Variation of the substitution pattern of 1,2-dihydrophosphete derivatives and chemical modification of their P atoms afford thermally stable derivatives, which are ...
Lozano G G Center for Nanophotonics, FOM Institute AMOLF. c/o Philips Research, High-Tech Campus 4, 5656 AE, Eindhoven, The - - 2014
We demonstrate an enhanced and tailor-made directional emission of light-emitting devices using nanoimprinted hexagonal arrays of aluminum nanoparticles. Fourier microscopy reveals that the luminescence of the device is not only determined by the material properties of the organic dye molecules but is also strongly influenced by the coherent scattering resulting ...
Lee Hyungjin H Department of Energy Systems Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 50-1 Sang-Ri, Hyeonpung-Myeon, Dalseong-Gun, Daegu, 711-873, Korea. - - 2014
Highly flexible and efficient silver nanowire-based organic light-emitting diodes (OLEDs) have been successfully fabricated by employing a n-type hole injection layer (HIL). The silver nanowire-based OLEDs without light outcoupling structures exhibited excellent device characteristics such as extremely low turn-on voltage (3.6 V) and high current and power efficiencies (44.5 cd ...
Udagawa Kazuo K Research Center for Organic Electronics (ROEL), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, - - 2014
A homoleptic iridium (iii) tris(pheny-limidazolinate) complex realizes a high EQE of 30%, low turn-on voltage of 2.5 V, and small efficiency roll-off in a blue organic light-emitting device (OLED). This device also shows high power efficiency over 75 lm W(-1) and ideal light distribution pattern at 100 cd m(-2) .
De Asha Alan R AR Division of Medical Engineering, School of Engineering, University of Bradford, Bradford BD7 1DP, - - 2014
If a prosthetic foot creates resistance to forwards shank rotation as it deforms during loading, it will exert a braking effect on centre of mass progression. The present study determines whether the centre of mass braking effect exerted by an amputee's habitual rigid 'ankle' foot was reduced when they switched ...
Mayrhofer Ralf R Department of Psychology, University of Göttingen, Germany. Electronic address: - - 2014
The question how agent and patient roles are assigned to causal participants has largely been neglected in the psychological literature on force dynamics. Inspired by the linguistic theory of Dowty (1991), we propose that agency attributions are based on a prototype concept of human intervention. We predicted that the number ...
Mabrouk O S OS Neurolytical LLC, Ann Arbor, Michigan, National Institute on Drug Abuse and National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD; Department of Pharmacology, National Institute on Drug Abuse and National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD; Department of Chemistry, University of Michigan, Ann Arbor, Michigan, National Institute on Drug Abuse and National Institute on Alcohol Abuse and Alcoholism, Bethesda, - - 2014
Monitoring mouse behavior is a critical step in the development of modern pharmacotherapies. New METHOD: Here we describe the application of a novel method that utilizes a touch display computer (tablet) and software to detect, record, and report fine motor behaviors. A consumer-grade tablet device is placed in the bottom ...
Loranger Sébastien - - 2014
Fabry-Perot resonators or interferometers (FPI) have existed for a long time and act as light accumulators. However, their applications have been limited to the allowed resonance modes in the cavity, which are defined by the specific free-spectral range of the FPI. We show here a novel concept involving a light ...
Amako J - - 2014
We report on a light-dispersing device consisting of two transmission gratings and a waveplate. The gratings separate two orthogonal polarization components of light incident at the Bragg angle. The waveplate, which is sandwiched between the gratings, functions as a polarization converter for oblique light incidence. With these optical parts suitably ...
Muhieddine Khalid K The Centre for Organic Photonics & Electronics, School of Mathematics and Physics and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia, - - 2014
All solution-processed, high performance hybrid light emitting transistors (HLETs) are realized. Using a novel combination of device architecture and materials a bilayer device comprised of an inorganic and organic semiconducting layer is fabricated and the optoelectronic properties are presented.
Höfle Stefan S Light Technology Institute, Karlsruhe Institute of Technology (KIT), Engesserstrasse 13, 76131, Karlsruhe, - - 2014
Fully solution processed monochromatic and white-light emitting tandem or multi-photon polymer OLEDs with an inverted device architecture have been realized by employing WO3 /PEDOT:PSS/ZnO/PEI charge carrier generation layers. The luminance of the sub-OLEDs adds up in the stacked device indicating multi-photon emission. The white OLEDs exhibit a CRI of 75.
Ye Jun J Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Sciences, City University of Hong Kong , Tat Chee Avenue, Hong Kong SAR, P. R. - - 2014
Achieving high efficiencies in simple device configurations is a long-standing and meaningful target for organic light-emitting devices (OLEDs). Herein, by utilizing an efficient blue-violet fluorophor (CzS1) that has a high triplet energy of 2.62 eV, the significance of effective confinement of the green triplets in fluorescence/phosphorescence hybrid white devices (F/P-WOLEDs) ...
Hawi Nael N Trauma Department, Hannover Medical School (MHH), Hannover, - - 2014
Motion sensing input devices could provide a practical and low-cost alternative method for repeated range of motion measurements. This study aimed to assess the reliability, accuracy and time requirements of a motion sensing input device (Microsoft Kinect) for ROM measurements comparing it with goniometer based measurements and subjective estimation. Full ...
Arahira Shin - - 2014
In this paper, we reveal that some kinds of optical nonlinearities are further enhanced when incoherent light, instead of a laser, is used as a pump light. This idea was confirmed both theoretically and experimentally in the case of sum-frequency generation (SFG) using the optical second nonlinearity. The conversion efficiency ...
Spangenberg Dirk-Mathys - - 2014
Spatial light modulators are ubiquitous tools for wavefront control and laser beam shaping but have traditionally been used with monochromatic sources due to the inherent wavelength dependence of the calibration process and subsequent phase manipulation. In this work we show that such devices can also be used to shape broadband ...
Shamaei Kamran - - 2014
In this study, we describe the mechanical design and control scheme of a quasi-passive knee exoskeleton intended to investigate the biomechanical behavior of the knee joint during interaction with externally applied impedances. As the human knee behaves much like a linear spring during the stance phase of normal walking gait, ...
Brook-Smith S S Lothian Birth Centre, Simpson Centre for Reproductive Health, Royal Infirmary, Edinburgh, - - 2014
Water immersion during labour and birth is recognised as a means of empowering women and reducing need for analgesia. Although waterbirth is a 'hands off' birth, midwives are required to monitor progress and assist controlled delivery of the head. Viewing using a handheld mirror can often be restricted due to ...
Barlas Stephen - - 2014
FDA starts light-touch inspections for some imports.
Greenhalgh A A London Sport Institute, Middlesex University, United Kingdom. Electronic address: - - 2014
The examination of synchronous three dimensional (3-D) kinetics and kinematics of walking in laboratory based analyses typically requires participants/patients to make foot contact with a force or pressure measuring device. However, it has been proposed that this may lead to targeting whereby participants modify their natural gait pattern in order ...
Roudsari Anita Fadavi - - 2014
We propose a new nanowire based, junction-less phototransistor, that consists of a channel with both wide and narrow regions to ensure efficient light absorption and low dark current, respectively. While the light is absorbed in the wide region, the narrow region allows for ease of band engineering. We also find ...
Searl Jeff J Department of Hearing and Speech, University of Kansas Medical Center, Kansas City, Kansas. Electronic address: - - 2014
To elucidate capabilities and limitations of the VocaLog, a device marketed to log-calibrated dB sound pressure level (SPL). The study design varied depending on the experiment. All were prospective. Some were case series, and others were cohort studies without controls. Experiments were conducted to determine (1) whether the VocaLog logged ...
Ni Pei-Nan - - 2014
By taking semiconductors with different band-gap energies as the active layers and controlling the electron-hole recombination region through the electric field, bias-polarity dependent ultraviolet/visible switchable light-emitting devices have been realized in Au/MgO/Mg0.49Zn0.51O/MgxZn1-xO/n-ZnO structures, of which the emission bands can be switched from ultraviolet region to orange region by changing the ...
Gao Xianfeng X Department of Mechanical Engineering, University of Wisconsin Milwaukee, Wisconsin 53211, USA. - - 2014
Freestanding TiO2 nanotube array films are fabricated and first applied as electrodes in perovskite CH3NH3PbI3 sensitized solar cells. The device demonstrates improved light absorption with more than 90% of light absorbed in the whole visible range and a reduced charge recombination rate, leading to a significant improvement of the photocurrent ...
Nguyen Huu Tuan HT Department of Energy Systems Research, Ajou University , Suwon, Gyeonggi-do 443-749, Republic of - - 2014
We fabricated hybrid light emitting devices based on colloidal CdSe/ZnS core/shell quantum dots and a solution-processed NiO layer. The use of a sol-gel NiO layer as a hole injection layer (HIL) resulted in overall improvement in device operation compared to a control device with a more conventional poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) HIL. In ...
Zhang Yanfei - - 2014
Doped single-layer polymer OLEDs consisting of PVK: (TPB, C545T, Rubrene or DCJTB) were prepared. By applying high-frequency electric pulse of 0.5 micros pulse width to each device, we observed various delayed electroluminescence after withdrawing the forward bias. The order of magnitude of fitting life time ranges from hundreds of nanoseconds ...
He Li - - 2014
The helicity of circularly polarized (CP) light plays an important role in the light-matter interaction in magnetic and quantum material systems. Exploiting CP light in integrated photonic circuits could lead to on-chip integration of novel optical helicity-dependent devices for applications ranging from spintronics to quantum optics. In this Letter, we ...
Murtagh Ryan R University of South Florida, 2700 University Square Drive, Tampa, FL 33612, USA. Electronic address: - - 2014
The primary goal of motion preservation surgery in the spine is to maintain normal or near normal motion in an attempt to prevent adverse outcomes commonly seen with conventional spinal fusion, most notably the development of adjacent-level degenerative disc disease. Several different surgical approaches have been developed to preserve motion ...
Stock Armin A University of - - 2014
In the fall and winter of 1910, Max Wertheimer (1880-1943) performed his famous experiments on perceived motion, published in 1912. Besides slider experiments he mainly used a wheel tachistoscope developed by Friedrich Schumann (1863-1940) at the end of the 19th century. The Adolf-Wuerth-Center for the History of Psychology has several ...
Cheneler D - - 2014
Organic light-emitting diodes (OLEDs) are used almost exclusively for display purposes. Even when implemented as a sensing component, it is rarely in a manner that exploits the possible compliance of the OLED. Here it is shown that OLEDs can be integrated into compliant mechanical micro-devices making a new range of ...
Wu Lyndia - - 2014
Injury from blunt head impacts causes acute neurological deficits and may lead to chronic neurodegeneration. A head impact detection device can serve both as a research tool for studying head injury mechanisms and a clinical tool for real-time trauma screening. The simplest approach is an acceleration thresholding algorithm, which may ...
Balaram Ajay K AK *Department of Orthopaedic Surgery and Rehabilitation, Loyola University Medical Center, Maywood, Illinois. †Musculoskeletal Biomechanics Laboratory, Department of Veterans Affairs, Edward Hines Jr. VA Hospital, Hines, Illinois. ‡Synthes Spine, West Chester, - - 2014
Study Design. In vitro Biomechanical Study.Objective. To test the hypotheses: (1) an anchored-spacer device would decrease motion similarly to a plate-spacer construct, and (2) the anchored-spacer would achieve a similar reduction in motion when placed adjacent to a previously fused segment.Summary of Background Data. An anchored-spacer device has been shown ...
Karimov Jamshid H JH Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, - - 2014
We designed a device that applies motion-activated energy (vibration) to prevent chest-tube clogging and maintain tube patency. We evaluated the efficacy of this device in vitro and in vivo. The motion-activated system (MAS) device assembly comprises a direct current motor with an eccentric mass (3.2 g, centroid radius of 4.53 ...
Pfeiffer Carl - - 2014
Metamaterial Huygens' surfaces manipulate electromagnetic wavefronts without reflection. A broadband Huygens' surface that efficiently refracts normally incident light at the telecommunication wavelength of 1.5 µm is reported. The electric and magnetic responses of the surface are independently controlled by cascading three patterned, metallic sheets with a subwavelength overall thickness of ...
Norman Sumner L - - 2014
In this paper, we show that a simple haptic device can accurately guide users through planar hand movements. The device guides the user through skin stretch feedback on the fingerpad of the user's index finger. In an angle matching test evaluating two types of stimuli, users are able to discriminate ...
Klein Julius - - 2014
This paper presents a novel robotic interface to investigate the neuromechanical control of redundant planar arm movements. A unique aspect of this device is the third axis by which the wrist, and hence the pose of the arm can be fully constrained. The topology is based on a 5R, closed ...
Yu Dangmin - - 2014
A light-emitting diode is fabricated and characterized on a semiconducting serpentine CNT which has many parallel segments with identical chirality. Compared with the individual CNT and CNT-film devices, the device with parallel segments shows improvement of an order of magnitude in current, significantly larger electroluminescent intensity, and narrower emission bands. ...
Basch Corey H CH William Paterson University, , Wayne, New Jersey, - - 2014
Use of mobile devices has been cited as a distraction while driving, and more recently, among pedestrians crossing urban streets. In 2010, over half of New York City traffic fatalities were pedestrians. The aim of this study was to estimate the prevalence of distracted walking due to pedestrians' use of ...
Shimada Toshikazu - - 2014
We present the modeling and the experiment on the lateral integration of a vertical-cavity surface-emitting laser (VCSEL) and slow light Bragg reflector waveguide devices. The modeling shows an efficient direct-lateral coupling from a VCSEL to an integrated slow light waveguide. The calculated result shows a possibility of 13 dB chip gain ...
Ying Lei L Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. - - 2014
White polymer light-emitting devices (WPLEDs) have become a field of immense interest in both scientific and industrial communities. They have unique advantages such as low cost, light weight, ease of device fabrication, and large area manufacturing. Applications of WPLEDs for solid-state lighting are of special interest because about 20% of ...
Chuanasa Jakkrapun J Department of Mechanical Engineering, King Mongkut's University of Technology Thonburi, Bangkok, - - 2014
Background:There are many associated devices using impedance method. However, they cannot completely suppress tremor. Other methods using active vibration control have been a challenging problem for industrial and academic researchers. Potential applications of the latter for tremor patients are still not realized.Objectives:This article presents a novel method for suppressing human ...
Jeong Intae - - 2014
Heavily-doped strained germanium (Ge) can emit light efficiently thanks to its pseudo direct band gap characteristic. This makes Ge a good candidate for on-chip monolithic light sources in silicon (Si) photonics systems. We propose fin-shaped Ge-Si heterojunction light-emitting diode (LED) with metal gates, which can enhance light emission by coupling ...
Xu Yunlu - - 2014
We propose a polymer photovoltaic device with a new scattering mechanism based on photon absorption and re-emission in a quantum dot layer. A matrix of aluminum nanorods with optimized radius and period are used to modify the coupling of light emitted from the quantum dots into the polymer layer. Our ...
Wang Wenyan - - 2014
Metal nanogratings as one of the promising architectures for effective light trapping in organic photovoltaics (OPVs) have been actively studied over the past decade. Here we designed a novel metal nanowall grating with ultra-small period and ultra-high aspect-ratio as the back electrode of the OPV device. Such grating results in ...
Luo Lin-Bao LB School of Electronic Science and Applied Physics and Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui, 230009, P. R. - - 2014
In this work, we propose a simple strategy to improve the device performance of photodetector by modifying plasmonic nanoparticles onto the surface of semiconductors nanostructure. Both experimental analysis and theoretical simulation show that the plasmonic metal nanoparticles (AuNPs) exhibits obvious localized surface plasmon resonance (LSPR) which can trap incident light ...
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