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S0141938214000699 | Although the three-dimensional television is popular for its stereoscopy, the fatigue caused by the prolonged watching of 3DTV should not be underestimated. Electroencephalogram (EEG) has been widely used for monitoring the brain’s functional activities. Based on our previous research of 3DTV fatigue, one more objectiv... | Assessment visual fatigue of watching 3DTV using EEG power spectral parameters |
S0141938214000705 | Three kinds of lanthanide phosphors (La x Lu1 − x F3: Eu3+, LaF3–CaF2:Eu3+ and LaF3: Eu3+) have been successfully synthesized based on three different ways such as molten salts, co-precipitation, supersonic and microwave irradiations. The as-prepared powder materials all exhibited red luminescence. Their crystal struct... | Design and characterization of new lanthanide fluorides and their optical properties |
S0141938214000717 | MEMS (microelectromechanical systems) are used in many fields including display applications, which are extensively studied both in academia and industry. For practical devices, numbers of advanced technologies have been developed based on MEMS concept. For display technologies, projection displays, reflective displays... | Advanced MEMS-based technologies and displays |
S0141938214000729 | Polymer networks are employed in vertical-aligned liquid crystal (LC) cells to stabilize the LC molecular configuration under the in-plane field driving. Two different polymer morphologies, respectively produced by the monofunctional and bifunctional acrylate monomers, are assembled on the glass-substrate surface. The ... | Optimized electro-optical properties of polymer-stabilized vertical-aligned liquid crystal displays driven by an in-plane field |
S0141938214000791 | The relationship between the occurrence of simulator sickness (SS) and varying latency in a helmet-mounted display (HMD) was explored in this study. Previous work has always considered latency to be a constant. The aim of this research was to determine if a latency that varied over time would impact the experience of S... | The effects of 0.2Hz varying latency with 20–100ms varying amplitude on simulator sickness in a helmet mounted display |
S0141938214000808 | Thin amorphous silicon (a-Si) films were crystallized into polycrystalline silicon (poly-Si) by combining solid phase crystallization (SPC) and subsequent excimer laser annealing (ELA). Then thin film transistors (TFTs) were fabricated by using the poly-Si formed in the single and double excimer laser scanned area. The... | Effects of the single and double (overlap) scanned excimer laser annealing on solid phase crystallized silicon films |
S0141938214000821 | Modern liquid crystal displays (LCDs) require novel technologies, such as new alignment methods to eliminate alignment layers, fast response and long operation time. To this end, we report an overview of recent efforts in LCD technologies devoted to realize more display modes having no alignment layer, faster switching... | Developing novel liquid crystal technologies for display and photonic applications |
S0141938214000833 | We examined the effects of the visual size and the number of digits on reading numerical time information in young adults. Using an adaptive staircase procedure, minimal stimulus presentation duration (MSPD) for 80%-correct responses was determined for visual sizes ranging from 0.1° to 15°, when reading 1 (“mm”), 2 (“h... | Stimulus duration thresholds for reading numerical time information: Effects of visual size and number of time units |
S0141938214000870 | This paper discusses state-of-the-art tactile displays fabricated by a micro-electronic-mechanical-system (MEMS). A tactile display conveys tactile sensations to users by using actuators. Traditional tactile displays consist of large size actuators, such as a motor or an ultrasound vibrator, to convey tactile feedback ... | MEMS-based tactile displays |
S0141938214000882 | This work presents the possibility of the hollow core nanoparticles to improve luminance in an organic light emitting diode device. The finite difference time domain simulation estimates the effect of the hollow core nanoparticles on the external quantum efficiency of the organic light emitting diode device. The effici... | Hollow-core polymeric nanoparticles for the enhancement of OLED outcoupling efficiency |
S0141938214000894 | New chiral compounds of the steroid type, namely, 3-alkanoyl- and 3-alkyl derivatives of 16-arylidene estrone, were synthesized and exhibited high helical twisting power (HTP) in nematic liquid crystals E63 and LC-1289. The peculiarities of the molecular structure of chiral compounds (CCs) and their high degree of chir... | Influence of the rigidity of the steroid core in the structure of chiral dopants on the temperature dependence of cholesteric short pitch |
S0141938214000912 | In this paper we investigated the accuracy of center-to-center distance perception in near field augmented reality visual targets viewed by stereoscopic glasses. One real and one virtual targets were presented in four layout or target orientations (two horizontal and two vertical, by altering the relative positions of ... | Distance estimation with mixed real and virtual targets in stereoscopic displays |
S0141938214000924 | This paper reviews several optical connecting devices that are based on microelectromechanical systems (MEMS) components. In this paper, we divide optical connecting devices into two categories. The first category includes MEMS-based optical switches developed for optical fiber communication, which perform optical swit... | MEMS optical switches and interconnects |
S0141938214000936 | Fiber-optical microendoscopy has recently been an essential medical diagnostic tool for patients in investigating tissues in vivo due to affordable cost, high quality imaging performance, compact size, high-speed imaging, and flexible movement. Microelectromechanical systems (MEMS) scanner technology has been playing a... | MEMS based fiber optical microendoscopes |
S0141938215000025 | A film-insert injection compression molding process was introduced to encapsulate cholesteric liquid crystal displays with flexible and rigid lens for full protection of displays to replace the currently used time consuming hand lamination technique. For this purpose, a new interchangeable cavity instrumented hot runne... | Instrumented film-insert injection compression molding for lens encapsulation of liquid crystal displays |
S0141938215000037 | In many virtual environments, such as those of video games, the scene background moves to give the illusion of movement. In the present study, two experiments were designed to investigate the combined impact of lateral background motion and task difficulty on players’ performance in a target-shooting task. Participants... | How visual background motion and task difficulty modulate players’ performance in a shooting task |
S0141938215000293 | The effect of 1,3,5-Tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) doping on electroluminescent properties of poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl)benzidine] (poly-TPD) was investigated. A series of organic light-emitting devices (OLEDs) integrated with (i) single-layer poly-TPD, (ii) blended single-layer po... | Electroluminescent properties of poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl)benzidine] doped with 1,3,5-Tris(1-phenyl-1H-benzimidazol-2-yl)benzene |
S0141938215000311 | Using a ray tracing technique, we investigate the dependence of the moiré effect on the crossing angles between touch screen panels (TSPs) and display panels, the metal grid structures (spacing and width), and metal grid shapes (non-uniform and random grids). Of those design parameters, adjusting the crossing angle (∼4... | Design of moiré-free metal meshes using ray tracing for touch screen panels |
S0141938215000323 | When reading from an electronic screen, many individuals report symptoms such as tired eyes or eye strain. To minimize these symptoms, a 3× acuity reserve has been suggested, i.e., the minimum print size should be at least 3 times larger than the size of the letters at the reader’s acuity limit. This study evaluated wh... | Is the 3× reading rule appropriate for computer users? |
S0141938215000335 | Minimum angle of resolution (MAR) was measured for the grating which consisted of lines of two colors selected from Red, Green, Blue, White and Black. Method of two alternative forced choice (2AFC) was used where the participants were asked to answer the direction of the color grating of the horizontal or vertical dire... | Measurement of minimum angle of resolution (MAR) for the spatial grating consisting of lines of two colors |
S0141938215000347 | Background The use of colors in visual displays can facilitate visual search and perception, but their use may not be effective without consideration of differences in the interpretation of their connoted meanings between individuals of different occupational backgrounds. Objective This study examined color-concept ass... | A study of the relationship between color-concept association and occupational background for Chinese |
S0141938215000529 | Objective It is generally assumed that motion in motion images is responsible for increased postural sway as well as for visually induced motion sickness (VIMS). However, this has not yet been tested. To that end, we studied postural sway and VIMS induced by motion and still images. Method 15 Participants were exposed ... | Motion in images is essential to cause motion sickness symptoms, but not to increase postural sway |
S0141938215000530 | Dysprosium doped strontium calcium magnesium di-silicate phosphor namely: SrCaMgSi2O7:Dy3+ was prepared by the solid state reaction method. The crystal structure of the prepared phosphor was an akermanite type structure, which belongs to the tetragonal crystallography with space group P 42 ‾ 1 m. From field emission sc... | Structural characterization and optical properties of dysprosium doped strontium calcium magnesium di-silicate phosphor by solid state reaction method |
S0141938215000542 | The Spectral Radiance Piecewise Partition Model (SRPPM) is a new model for characterizing Liquid Crystal Displays (LCD). According to the additive property of the spectral radiances of the primary displayed color, the SRPPM model can be divided into three subspace partitions to calculate the transfer coefficient matrix... | The Spectral Radiance Piecewise Partition Model for characterizing Liquid Crystal Displays |
S0141938215000554 | Blue organic light-emitting devices (OLEDs) combing a composite hole transporting layer (c-HTL) and novel homogeneous double emitting layers (DELs) have been fabricated. The c-HTL plays a significant role of rectification in balancing the carriers’ injection concentration which matches well with the DELs structure. The... | Utilization of a composite hole transporting layer and novel homogeneous double emitting layers for performance improvement and low efficiency roll-off in organic light-emitting diodes |
S0141938215000566 | This study explores a new way to integrate advanced display technology into educational activities for children with different disabilities. A free interactive mobile augmented reality (AR) application was developed to facilitate the learning of geometry. Twenty-one elementary school children participated in an experim... | Augmented reality in educational activities for children with disabilities |
S0141938215000578 | Industrial and academic researches have, in the last twenty years, matured the plasma display panels (PDPs) to the successful product level for commercial flat screen television sets. The sustain driver with resonant operation, converting high dc voltage to ac square-wave voltage with high frequency for strong visible ... | Rating analysis and comparisons of resonant circuit based sustain drivers for PDPs |
S0141938215000591 | After the appearance of digital broadcasting, realistic images such as 3D and high resolution broadcasting are rapidly developing and evolving. And, recent trend emphasizes not only viewing the information but also using it through the display media. To keep up with this trend, large size display manufacturers are tryi... | Implementation of 21:9 cinema mode function using two ICs supporting full HD resolution |
S0141938215000608 | 3D video has recently seen a massive increase in exposure in our lives. However, differences between the viewing and shooting conditions for a film lead to disparities between the reformed media and the original three-dimensional effect, which cause severe visual fatigue to viewers and result in headaches and dizziness... | A study on the possibility of implementing a real-time stereoscopic 3D rendering TV system |
S0141938215000621 | Two phenylanthracene-substituted fluorene derivatives, 10-(9,9′-dimethyl-2-(10-phenylanthracen-9-yl)-9H-fluoren-7-yl)-phenylanthracene (1) and 2′,7′-di-(10-phenylanthracen-9-yl)-9,9′-spirobi[9H-fluorene] (2) have been designed, synthesized, and characterized. A device using compound 1 as an emitting material exhibited ... | Blue electroluminescent materials based on phenylanthracene-substituted fluorene derivatives for organic light-emitting diodes |
S0141938215000906 | GdVO4:Eu3+, Bi3+ with tetragonal phase has been successfully synthesized by employing efficient irradiations. The assembly of composites with fine grains based on acoustic energy and microwave radiation requires low temperature (90°C) and short reaction time (60min). All the compounds exhibited red emissions and they c... | Facile synthesis of lanthanide vanadates and their luminescent properties |
S0141938215000918 | A scalable video coding (SVC) server can simultaneously provide a single bitstream with a fixed maximum service layer for different kinds of devices having different memory capacity, network bandwidth, and CPU performance requirements. An efficient hybrid 3D video service scheme is proposed without violation of the SVC... | A novel hybrid 3D video service algorithm based on scalable video coding (SVC) technology |
S0141938215000931 | This paper proposes a fast mode decision algorithm for 3D High Efficiency Video Coding (3D-HEVC) depth intra coding. In the current 3D-HEVC design, it is observed that for most of the cases, full rate-distortion (RD) cost search of Bi-Partition mode could be skipped since most coding units (CUs) of depth map are very f... | Low complexity Bi-Partition mode selection for 3D video depth intra coding |
S0141938215000943 | In general, to achieve high compression efficiency, a 2D image or a 2D block is used as the compression unit. However, 2D compression requires a large memory size and long latency when input data are received in a raster scan order that is common in existing TV systems. To address this problem, a 1D compression algorit... | An enhanced one-dimensional SPIHT algorithm and its implementation for TV systems |
S0141938215000955 | Multi-projector displays allow the realization of large and immersive projection environments by allowing the tiling of projections from multiple projectors. Such tiled displays require real time geometrical warping of the content that is being projected from each projector. This geometrical warping is a computationall... | A scalable architecture for geometric correction of multi-projector display systems |
S0141938215000967 | An increasing number of studies on efficient implementation of vivid and realistic displays are being conducted as liquid crystal displays (LCDs) become widely used in TV applications. For vivid displays, the specifications such as wide color gamut (WCG) and high dynamic range (HDR) should be implemented in LCDs. Howev... | Wide color gamut and high dynamic range displays using RGBW LCDs |
S0141938215000979 | HEVC is the latest coding standard to improve the coding efficiency by a factor of two over the previous H.264/AVC standard at the cost of the increased complexity of computation rate-distortion optimization (RDO) is one of the computationally demanding operations in HEVC and makes it difficult to process the HEVC comp... | Simplified algorithms for rate-distortion optimization in high efficiency video coding |
S0141938215300019 | Panoramic videos provide a high resolution wide-angle field of view to audience. The rendering of such panoramic videos on large multi-projector curved displays further enhances the experience by providing them an immersive visual environment. Immersive panoramic projection thus comprise of three steps: acquisition of ... | A unified panoramic stitching and multi-projector rendering scheme for immersive panoramic displays |
S0141938215300020 | This paper presents a novel image restoration algorithm using examples and truncated constrained least squares (TCLS) filter for ultra-high definition (UHD) television systems. The proposed approach consists of three steps: (i) generation of the patch dictionary using multiple-step image blurring, (ii) selection of the... | UHD TV image enhancement using example-based spatially adaptive image restoration filter |
S0141938215300032 | With the spread of portable smart devices, social networking services are gaining popularity. At the same time, emoticons which can be used a primary tool to deliver the enriched personal feelings are also gaining popularity in the social networking services. Now, emoticon markets are much bigger than before since the ... | Introduction to editable visual object and its description schema for mobile applications |
S0141938215300044 | 3D has been one of the most important technologies of the last decade having an exponential progression. Nevertheless, several problems such as visual discomfort and visual fatigue have slowed its progression for homes. This factor decreases significantly the overall quality of experience from watching 3D content and r... | Investigation and modeling of visual fatigue caused by S3D content using eye-tracking |
S0141938215300056 | The aim of this study is to develop an effective method to analyze regions of interest (ROIs). Two experiments were conducted at different times using different groups of observers with different images on different displays. Observers’ eye-movement data were collected. Fixation maps showing CIELAB L ∗ values were crea... | Identifying regions of interest in reading an image |
S0141938215300068 | This study evaluates the effect of presentation media (PC tablet versus pencil and paper) on the performance, level of visual fatigue, and subjective preference of those taking visuospatial tests. Fifty university students participated and performed three visuospatial short-term memory tests and three visuospatial abil... | The evaluation of visuospatial performance between screen and paper |
S0141938215300081 | Anaglyph video (i.e., 3D video) is a recent trend in movies and multimedia; the method has also been recently developed for conversion of such videos from traditional 2D screens or by rendering stereoscopic media into 3D video. There have also been many studies regarding movie playing and other types of entertainment t... | Anaglyph video smell presentation using micro-porous piezoelectric film olfactory display |
S0141938215300093 | Icon plays a critical role in computer interface design. Studies on icon taxonomy explain the way in which various types of icon represent the objects and provide designers creation rules by which icons are more in line with users’ cognitive psychology. However, along with larger and larger use of icons, the previous c... | From action icon to knowledge icon: Objective-oriented icon taxonomy in computer science |
S0141938215300111 | This paper presents a new bi-side gate driver integrated by indium-zinc-oxide thin film transistors (IZO TFTs). Our optimized operate method can achieve high speed performance by employing a lower duty ratio (25%) CK2 with its pulse located in the middle of the pulse of CK2L to fully use the bootstrapped high voltage o... | Design of high speed gate driver employing IZO TFTs |
S0141938215300135 | To study the interface effects on the device performance, we fabricated indium–gallium–zinc oxide (IGZO) thin-film transistors (TFTs) with a two-stack gate-insulator structure. The two-stack gate insulator was composed of a thick main insulator and a thin interfacial insulator; the main insulator determines the effecti... | Analysis of the dependence of indium–gallium–zinc oxide thin-film transistor properties on the gate interface material using a two-stack gate-insulator structure |
S0141938215300147 | Blue color organic/polymeric light emitting diodes are very important because they can be used for tri-color display applications, fluorescence imaging, and exciting yellow phosphor for generating white light for general illumination. But the efficiency of blue organic/polymeric light emitting diodes is considerably lo... | Efficiency enhancement in blue organic light emitting diodes with a composite hole transport layer based on poly(ethylenedioxythiophene):poly(styrenesulfonate) doped with TiO2 nanoparticles |
S0141938215300159 | It is a challenging task to improve the visual comfort of a stereoscopic 3D (S3D) image with satisfactory viewing experience. In this paper, we propose a visual comfort improvement scheme by adjusting zero-disparity plane (ZDP) for projection. The degree of visual discomfort is predicted by considering three factors: s... | Visual discomfort relaxation for stereoscopic 3D images by adjusting zero-disparity plane for projection |
S0141938215300160 | A new display concept for reproduction of high-luminance colors based on a liquid crystal display has been developed using a brighter backlight unit and color mapping algorithms. The new concept is able to display brighter colors close to a peak luminance of a display white than conventional displays so that realistic ... | New display concept for realistic reproduction of high-luminance colors |
S0141938215300172 | Data hiding, also known as information hiding, plays an important role in information security for various purposes. Reversible data hiding is a technique that allows distortion-free recovery of both the cover image and the secret information. In this paper, we propose a new, reversible data hiding scheme that is based... | A reversible data hiding scheme based on the Sudoku technique |
S0141938215300196 | Objective Visually induced motion sickness (VIMS) and increased postural sway are two adverse side effects that may occur when viewing motion stimuli. However, whether these effects are elevated to a greater extent when viewing stereoscopic 3D motion stimuli, compared to 2D stimuli on a TV screen, has not been investig... | Equally moved and not really sick from viewing 2D and 3D motion stimuli on a TV screen |
S0141938215300202 | A series of Eu3+-activated Li2Mg2(WO4)3 (LMW) materials were synthesized by high temperature solid state reactions. The phosphor can be effectively excited by 394nm near ultraviolet light and emit intense red light with high color purity. Prepared phosphors can be indexed to LMW with particular lyonsite structure. The ... | Red phosphor Li2Mg2(WO4)3: Eu3+ with lyonsite structure for near ultraviolet light-emitting diodes |
S0141938215300238 | In this paper, a new data hiding method is proposed based on secret sharing scheme with the DNA exclusive or (DNA-XOR) operator for color images. The DNA-XOR secret sharing scheme uses a DNA-XOR truth table. Each input value of truth table is evaluated and according to that evaluation, highest PSNR (Peak Signal-to-Nois... | A reversible data hiding algorithm based on probabilistic DNA-XOR secret sharing scheme for color images |
S0141938215300354 | Although visually impaired people are generally considered to be dependent and helpless people, they actually share the same characteristics as other people. Thanks to the Braille alphabet, which has been developed to reduce inequality of opportunity to minimum, their lives become a little bit easier. Besides Braille a... | An interactive and multi-functional refreshable Braille device for the visually impaired |
S0141938215300391 | The development of mobile devices nowadays shows an increasing trend toward interacting with 3D digital content on a 2D touch screen. However, many issues regarding the appropriateness of the control mode require further exploration. The experimental design in this study designates displays of two sizes—five inches and... | The effects of screen size on rotating 3D contents using compound gestures on a mobile device |
S0141938215300421 | Electronic visual displays have shown a rapid technological evolution in the last two decades. With reference to the ergonomic requirements for video display terminal (VDT) workstations (ISO 9241), at an international level, attention is focused on the human–system interaction. With reference to visual ergonomics, the ... | Visual ergonomics of video-display-terminal workstations: Field measurements of luminance for various display settings |
S0141938215300433 | The phase behaviors of a blue-phase (BP) liquid crystal in a planar-aligned cell were investigated by means of temperature-dependent dielectric spectroscopy. With auxiliary observations of optical transmission spectra and birefringent textures, we found that the transition temperatures of two adjacent mesophases, inclu... | Dielectric characterization and voltage holding ratio of blue-phase cells |
S0141938215300445 | We report on the temperature dependence of dielectric properties of nematic liquid crystals impregnated with BaTiO3 (BTO) ferroelectric nanoparticles. The behavior of ion transport at low frequencies is discussed by means of dielectric spectroscopy, which allows the ionic concentration and the relaxation time of electr... | Temperature-dependent electrical and dielectric properties of nematic liquid crystals doped with ferroelectric particles |
S0141938215300457 | We present a simple and efficient way to improve the performance of the twisted nematic liquid crystal (LC) system by doping a small amount of n-alcohols. The LCs modified by n-hexanol demonstrates the optimum electro-optical properties of lower driving voltage and shorter response time. Our measurements indicate that ... | The n-alcohols liquid doping effect on the twisted nematic liquid crystals |
S0141938215300470 | Modern interfaces increasingly rely on screens filled with digital text to display information to users. Previous research has shown that even relatively subtle differences in the design of the on-screen typeface can influence to-device glance time in a measurable and meaningful way (Reimer et al., 2014). Here we outli... | The effects of Chinese typeface design, stroke weight, and contrast polarity on glance based legibility |
S0141938215300482 | Large displays enable users to perform several tasks simultaneously. Under such circumstances, notification information provided through the concept of ambient displays plays a vital role in assisting users to switch among tasks. This paper presents the experimental results of a notification system design in the periph... | Evaluation of detection and discrimination ability of peripheral vision on notification information based on large displays |
S0141938215300494 | In this paper, we proposed a novel method to embed a series of ternary secret data into a cover image based on an improved Least-Significant-Bit (LSB) scheme using the modulo three strategy. Our new method can hide two ternary numbers into each grayscale pixel, normally only modify the two LSBs of the pixel, while it m... | An improved least-significant-bit substitution method using the modulo three strategy |
S0141938215300536 | The MoO3 doped N,N′-bis-(1-naphthyl)-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB:MoO3 in 2:1 mass ratio) and 4,4′-N,N′-dicarbazole-biphenyl (CBP:MoO3 in 2:1 mass ratio) as p-doped hole transport layers have been used in inverted organic light emitting diodes (IOLEDs). Compared to the NPB/20nm NPB:MoO3 structure, the NPB/1... | Unlocking the potential of p-doped hole transport layers in inverted organic light emitting diodes |
S0141938215300561 | This paper presents an optimized color characterization model based on Radial Basis Functions (RBFs). The performance of the proposed model was tested on a number of different mobile devices and compared with the performance of other state of the art color characterization models. We compared the accuracy of models usi... | An optimized Radial Basis Function model for color characterization of a mobile device display |
S0141938216300026 | A new method is developed for the preparation of a transparent electrically conductive hybrid polymer films which maintain their electrical conductivity when subjected to deformation in two and three dimensions including bending, stretching and twisting. These films are made by a hybrid roll to roll (R2R) process where... | Flexible, stretchable, transparent and electrically conductive polymer films via a hybrid electrospinning and solution casting process: In-plane anisotropic conductivity for electro-optical applications |
S0141938216300087 | The objective of this study is to put forward a new non-contact resistance measurement method for repeating bending tests of transparent electrodes deposited on flexible display substrates. The study utilizes a terahertz time domain spectroscopy (THz-TDS) method to measure electrical properties of flexible polyethylene... | Non-contact resistance measurement of transparent electrodes deposited on flexible display substrates under repetitive bending test by terahertz time domain spectroscopy |
S0141938216300166 | Three-dimensional (3-D) images are perceived as images that float in front of the screens of 3-D displays. Users should be able to interact with these images instantaneously and accurately in applications where their bodies actually seen by them interact with the images. However, conventional techniques using just bino... | New technique of obtaining visually perceived positions of 3-D images using movements of users’ bodies |
S0141938216300178 | In the product emotional design era, the website homepage design, especially the aesthetic design, has become a key factor that influences users’ first impressions, attitudes and behaviors. Based on the Stimulus-Organism-Response (S-O-R) theory, the current study examines the mechanism through which the aesthetic desig... | How homepage aesthetic design influences users’ satisfaction: Evidence from China |
S0141938216300312 | The impact of aberration on the speckle suppression efficiency is investigated in a laser projector system containing a moving diffractive optical element (DOE). The results of a qualitative analysis based on the number of diffraction orders passed through the optical system are presented, along with a quantitative ana... | Impact of aberrations on speckle suppression efficiency on moving a DOE inside the optical system |
S0142061513002585 | Conventionally monitoring operating conditions of a power transmission line is accomplished by periodic inspections along this line. This monitoring allows corrective maintenance by finding faults during the inspection. But in more efficient maintenance, predictive techniques that are characterized by real-time monitor... | MCHO – A new indicator for insulation conditions in transmission lines |
S0142061513002676 | In this paper, an interleaved step-up converter with a single-capacitor snubber for PV energy conversion applications is proposed. The step-up converter adopts two sets of boost converters with an interleaved fashion and coupled-inductor technology to reduce output ripple current and increase output power level. To ach... | Interleaved step-up converter with a single-capacitor snubber for PV energy conversion applications |
S0142061513003517 | Gravitational search algorithm (GSA) is based on law of gravity and the interaction between masses. In GSA, searcher agents are collection of masses and their interactions are based on Newtonian laws of gravity and motion. In this paper, to further improve the optimization performance of GSA, opposition-based learning ... | Solution of reactive power dispatch of power systems by an opposition-based gravitational search algorithm |
S0142061514000027 | During the last years wind power has emerged as one of the most important sources in the power generation share. Due to stringent Grid Code requirements, wind power plants (WPPs) should provide ancillary services such as fault ride-through and damping of power system oscillations to resemble conventional generation. Th... | Input–output signal selection for damping of power system oscillations using wind power plants |
S0142061514003743 | This survey paper is an excerpt of a more comprehensive study on Smart Grid (SG) and the role of Advanced Metering Infrastructure (AMI) in SG. The survey was carried out as part of a feasibility study for creation of a Net-Zero community in a city in Ontario, Canada. SG is not a single technology; rather it is a combin... | A survey on Advanced Metering Infrastructure |
S0142061514004815 | A power outage brings in economic losses for both the customers and the utilities. Studying these unwanted events and making solid predictions about the outcomes of the interruptions has been an attractive area of interest for the researchers for the last couple of decades. By making use of a customer survey study cond... | Interruption costs of service sector electricity customers, a hybrid approach |
S0142061514005869 | This paper proposes a three-phase four-leg voltage sourced inverter (VSI) based load unbalance compensator (LUC) including its control algorithm, which is a component of a microgrid. The purpose of proposed three-phase four-leg VSI based LUC is to improve power quality of the standalone microgrid. Power quality of the ... | A novel three-phase four-leg inverter based load unbalance compensator for stand-alone microgrid |
S0142061514007686 | Evidence shows that a small number of line contingencies in power systems may cause a large-scale blackout due to the effects of cascading failures. With the development of new technologies and the growing number of heterogeneous participants, a modern/smart grid should be able to self-heal its internal disturbances by... | Decentralized control and fair load-shedding compensations to prevent cascading failures in a smart grid |
S0142061515003324 | The increased number of renewable power plants pose threat to power system balance. Their intermittent nature makes it very difficult to predict power output, thus either additional reserve power plants or new storage and control technologies are required. Traditional spinning reserve cannot fully compensate sudden cha... | Hybrid wind power balance control strategy using thermal power, hydro power and flow batteries |
S0164121213002641 | This paper presents an approach for the automated debugging of reactive and concurrent Java programs, combining model checking and runtime monitoring. Runtime monitoring is used to transform the Java execution traces into the input for the model checker, the purpose of which is twofold. First, it checks these execution... | Using SPIN for automated debugging of infinite executions of Java programs |
S0164121213002744 | Many organisations are dependent upon long-term sustainable software systems and associated communities. In this paper we consider long-term sustainability of Open Source software communities in Open Source software projects involving a fork. There is currently a lack of studies in the literature that address how speci... | Sustainability of Open Source software communities beyond a fork: How and why has the LibreOffice project evolved? |
S0164121214001381 | Numerous component models have been proposed in the literature, a testimony of a subject domain rich with technical and scientific challenges, and considerable potential. Unfortunately however, the reported level of adoption has been comparatively low. Where successes were had, they were largely facilitated by the mani... | A component-based process with separation of concerns for the development of embedded real-time software systems |
S0164121214002702 | This paper proposes an architecture and associated methodology to separate front end UI concerns from back end coding concerns to improve the platform flexibility, shorten the development time, and increase the productivity of developers. Typical UI development is heavily dependent upon the underlying platform, framewo... | A separation-based UI architecture with a DSL for role specialization |
S0164121215000151 | Root cause analysis (RCA) is a recommended practice in retrospectives and cause–effect diagram (CED) is a commonly recommended technique for RCA. Our objective is to evaluate whether CED improves the outcome and perceived utility of RCA. We conducted a controlled experiment with 11 student software project teams by usi... | Diagrams or structural lists in software project retrospectives – An experimental comparison |
S0164121215000680 | Test case prioritization assigns the execution priorities of the test cases in a given test suite. Many existing test case prioritization techniques assume the full-fledged availability of code coverage data, fault history, or test specification, which are seldom well-maintained in real-world software development proje... | Input-based adaptive randomized test case prioritization: A local beam search approach |
S0164121215001740 | There exists no generally accepted theory in software engineering, and at the same time a scientific discipline needs theories. Some laws, hypotheses and conjectures exist, but yet no generally accepted theory. Several researchers and initiatives emphasize the need for theory in the discipline. The objective of this pa... | A general theory of software engineering: Balancing human, social and organizational capitals |
S0164121215001818 | Coping with evolution in automated production systems implies a cross-disciplinary challenge along the system's life-cycle for variant-rich systems of high complexity. The authors from computer science and automation provide an interdisciplinary survey on challenges and state of the art in evolution of automated produc... | Evolution of software in automated production systems: Challenges and research directions |
S0164121215001855 | Computing paradigms have shifted towards highly parallel processing and massive replication of data. This entails the efficient distribution of requests and the synchronization of results provided to users. Guaranteeing SLAs requires the ability to evaluate the performance of such systems while taking the effect of non... | Approximating closed fork-join queueing networks using product-form stochastic Petri-nets |
S0164121215002010 | Having a large number of applications in the marketplace is considered a critical success factor for software ecosystems. The number of applications has been claimed to determine which ecosystems holds the greatest competitive advantage and will eventually dominate the market. This paper investigates the influence of d... | The influence of developer multi-homing on competition between software ecosystems |
S0165168413003307 | Video transcoding is a legitimate operation widely used to modify video format in order to access the video content in the end-user's devices, which may have some limitations in the spatial and temporal resolutions, bit-rate and video coding standards. In many previous watermarking algorithms the embedded watermark is ... | Transcoding resilient video watermarking scheme based on spatio-temporal HVS and DCT |
S0165168414000644 | In this paper, we design and analyze a Newton-like blind equalization algorithm for the APSK system. Specifically, we exploit the principle of minimum entropy deconvolution and derive a blind equalization cost function for APSK signals and optimize it using Newton׳s method. We study and evaluate the steady-state excess... | Newton-like minimum entropy equalization algorithm for APSK systems |
S0165168414000814 | Mobile device localization in wireless sensor networks is a challenging task. It has already been addressed when the WiFi propagation maps of the access points are modeled deterministically or estimated using an offline human training calibration. However, these techniques do not take into account the environmental dyn... | Simultaneous localization and mapping in wireless sensor networks |
S0165168414001054 | In this paper, we propose a musical-noise-free blind speech extraction method using a microphone array for application to nonstationary noise. In our previous study, it was found that optimized iterative spectral subtraction (SS) results in speech enhancement with almost no musical noise generation, but this method is ... | Musical-noise-free blind speech extraction integrating microphone array and iterative spectral subtraction |
S0165168414002953 | Structured sparsity approaches have recently received much attention in the statistics, machine learning, and signal processing communities. A common strategy is to exploit or assume prior information about structural dependencies inherent in the data; the solution is encouraged to behave as such by the inclusion of an... | Wavelet shrinkage using adaptive structured sparsity constraints |
S0165168414003818 | Human motion denoising is an indispensable step of data preprocessing for many motion data based applications. In this paper, we propose a data-driven based human motion denoising method that sparsely selects the most correlated subset of motion bases for clean motion reconstruction. Meanwhile, it takes the statistic p... | Sparse motion bases selection for human motion denoising |
S0165168414003855 | We present a novel unsupervised fall detection system that employs the collected acoustic signals (footstep sound signals) from an elderly person׳s normal activities to construct a data description model to distinguish falls from non-falls. The measured acoustic signals are initially processed with a source separation ... | An unsupervised acoustic fall detection system using source separation for sound interference suppression |
S0165168414003971 | The analysis of the stability and numerical simulation of Costas loop circuits for high-frequency signals is a challenging task. The problem lies in the fact that it is necessary to simultaneously observe very fast time scale of the input signals and slow time scale of phase difference between the input signals. To ove... | Nonlinear dynamical model of Costas loop and an approach to the analysis of its stability in the large |
S0165168414004368 | In this paper, we propose a novel method for the blind compensation of drift for the asynchronous recording of an ad hoc microphone array. Digital signals simultaneously observed by different recording devices have drift of the time differences between the observation channels because of the sampling frequency mismatch... | Blind compensation of interchannel sampling frequency mismatch for ad hoc microphone array based on maximum likelihood estimation |
S0165168414004848 | Multimodulus algorithms (MMA) based adaptive blind equalizers mitigate inter-symbol interference in a digital communication system by minimizing dispersion in the quadrature components of the equalized sequence in a decoupled manner, i.e., the in-phase and quadrature components of the equalized sequence are used to min... | Steady-state performance of multimodulus blind equalizers |
S0165168414005520 | Human motion retrieval plays an important role in many motion data based applications. In the past, many researchers tended to use a single type of visual feature as data representation. Because different visual feature describes different aspects about motion data, and they have dissimilar discriminative power with re... | Adaptive multi-view feature selection for human motion retrieval |
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