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Monitoring of infrastructural resources against a huge number of virtual machines in clouds is a challenging task to system administrators. System management tools are used to collect and provide the utilization of a variety of performance counters of each virtual machine. Such dispersed views cannot reveal the actual performance behavior of virtual machines. To this purpose, a monitoring framework...
Data centers are extremely important facilities that contain core business information and applications, but the energy consumption is an inevitable issue, so the thermal distribution monitoring is critical for data centers reliable and stable operation. Thermal information enables monitoring and autonomic thermal management in large data centers. Recent approaches that employed a mobile robot or...
A new theory is presented about subjective images. The subjective image is generated by the visual system, and is the reflection of the objective image in the brain. First, the relation between the objective grayscale and the subjective grayscale is built by visual experiment, and thus a representation of the subjective image is found. Next, a histogram matching algorithm is developed to optimize...
Head-mounted displays (HMDs) offer immersion and binocular disparity. This study investigated whether an HMD yields better object-alignment performance than a conventional monitor in virtual environments that are rich in pictorial depth cues. To determine the effects of immersion and disparity separately, three hardware setups were compared: 1) a conventional computer monitor, yielding low immersion,...
Flyer is a means utilized popularly and effectively in recording landscape from above, collecting data of environment and weather, contributing to field works, especially conveying samples and medications from or to patients living in areas isolated by flood. It is necessary to track flyer's locations and characteristics for its activities. Visualization-based system for tracking flyer enables user...
Multiple remote tower operations are one concept for more cost efficient air traffic control at smaller airports. One air traffic controller (ATCO) should control traffic at two or more airports at the same time. Multiple remote tower operations for two small airports has already been successfully been validated by LFV, the Swedish air navigation service provider. As monitoring and visual observation...
As the health of the ocean continues to decline, more and more marine populations are at risk of extinction. A significant challenge facing conservation biologists is the ability to effectively monitor at-risk populations due to the challenges of the underwater environment. Obtaining visual data on a marine species typically requires significant time spent by humans observing in the field, which is...
In the last decade, virtual museums emerged, becoming a continuous trend for museums that want to innovate, renew and involve their visitors. The European Network of Virtual Museums (V-MUST.NET) in its four years analysis (2011–2014) indicated and tested potentially interesting digital applications, for the future of museums. How these involving narrative applications should be treated and how they...
La rehabilitación física de pacientes está sufriendo una modificación en su forma con la llegada de las nuevas tecnologías que permiten captar el movimiento de los pacientes. Esto supone un gran avance que facilita la repetición constante de los ejercicios con una correcta monitorización de posibles errores, la guía para que los pacientes realicen los ejercicios de forma correcta, evita costosos e...
The current paper presents the results related to the use of a Learning Analytics Manager for the monitoring processes of the collaborative learning activities and the students' motivation into the Learning Management System Moodle. The proposed manager was developed as a new functionality integrated to a service called Motivation Booster. This service is the result of a previous work that allowed...
Este documento presenta el proceso de elaboración de un micromundo educativo, con el cual se pretende apoyar actividades de comprensión lectora y escucha de la lengua nam trik hablada en el resguardo de Totoró, departamento del Cauca-Colombia. Para este propósito, se describe la adaptación metodológica obtenida a partir del estudio de tres metodologías: (i) Metodología para la construcción de materiales...
The paper is concerned sources of terahertz radiation different power. The paper dwells upon field of application of these sources. The authors gave a comprehensive analysis of powerful sources of terahertz radiation, sources of terahertz radiation of average power and sources of terahertz radiation of low power. In this paper the authors showed advantages and disadvantages of these sources. The authors...
The paper is concerned devices for real-time visualization of sources of THz radiation. The author gave clearcut presentation of the basic principles of devices for visualization of sources of THz radiation. In this paper the author present advantages and disadvantages of these devices. The authors showed field of application of devices for real-time visualization. The author put forward the new construction...
Many previous studies have shown that both infants and adults are skilled statistical learners. Because statistical learning is affected by attention, learners' ability to manage their attention can play a large role in what they learn. However, it is still unclear how learners allocate their attention in order to gain information in a visual environment containing multiple objects, especially how...
The European Train Control System (ETCS) as part of the ERTMS (European Rail Traffic Management System) is a train automation and control system, which has been introduced into the UK rail network, triggering a need to understand its impact on the train driving task and train driver behaviour. In particular, an industry requirement for Human Factors (HF) research and the necessity to understand the...
Air pollution problems are closely linked to geographic locations. The existing environmental monitoring systems have little focus on geographic information processing and real time visualization. In this paper, a spatial extension to main-memory database is implemented to support the storage and index of spatial-temporal data. Meanwhile, historic data is stored in disk-based spatial database, providing...
This paper presents a development algorithm of hemi-cylinder projection plane applied in panorama view of AVM applications. This projection plane is established to maintain the FOV in horizontal axis. The calibration parameters are estimated with OcamCalib toolbox, and comparison of keypoint detection are showed as experimental results. Our panorama view stitching with homography matrix calculated...
In this study, a c-VEP based BCI system was developed to run on three distinctive pseudorandom sequences, namely the m-code, the Gold-code, and the Barker-code. The Visual Evoked Potentials (VEPs) were provoked using these codes. In the online session, subjects controlled a Mindstorms® robot around a fixed track. Choosing the optimal code proved a significant increase in accuracy (p<0.00001) over...
This paper presents a data-driven approach to graphically presenting text-based patient journals while still maintaining all textual information. The system first creates a timeline representation of a patients' physiological condition during an admission, which is assessed by electronically monitoring vital signs and then combining these into Early Warning Scores (EWS). Hereafter, techniques from...
As one of the several characteristics of hemiplegic patients after stroke, the patients conduct sit-to-stand and stand-to-sit (STS) motion using their unaffected leg. The purpose of this study is to develop a STS motion support system for helping the patients decrease the difference of the usage ratio between the affected side and the unaffected side, and increase the usage of the affected leg. The...
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