This study compared the educational effects of computer simulations developed in a hyper-realistic virtual environment with either traditional schematic or optics laboratory. The was constructed on basis Java applets complemented photorealistic visual output. new concept, which we call hyper-realistic, transcends basic simulation; it provides user more realistic perception physical phenomenon being simulated. We learning achievements three equivalent, homogeneous groups undergraduates---an...

Color measurements have traditionally been linked to expensive and difficult handle equipment. The set of mathematical transformations that are needed transfer a color we observe in any object doesn’t emit its own light (which is usually called color-object) so it can be displayed on computer screen or printed paper not at all trivial. This requires thorough knowledge spaces, colorimetric management systems. TCS3414CS sensor (I2C Sensor Grove), system for capturing, processing allows the...

A discrete time crystal (DTC) is the paradigmatic example of a phase matter that occurs exclusively in systems out equilibrium. This phenomenon characterized by spontaneous symmetry breaking time-translation and provides rich playground to study fundamental question statistical physics: what mechanism allows for driven quantum exhibit emergent behavior deviates from their counterparts with time-independent evolution? Unlike equilibrium phases, DTCs macroscopic manifestations coherent...

Head-mounted displays allow us to go through immersive experiences in virtual reality and are expected be present more applications both recreational professional fields. In this context, recent years have witnessed significant advances rendering techniques following physical models of lighting shading. The aim paper is check the fidelity visual appearance real objects captured a 3D scanner, rendered personal computer displayed device. We compared forward versus deferred real-time computing...

We study the misconceptions about colour that most people hold, determining general phenomenological laws govern them. Concept mapping was used to combat which were found in application of a test specifically designed determine these misconceptions, while avoiding possible misleading inductions could have arisen from use everyday language. In particular, care taken avoid distorting effect verb 'to be' applied coloured objects on responses. The shown an internal consistency form authentic...

It is well known that there are different preferences in correlated color temperature of light sources for daily living activities or viewing artistic paintings. There also data relating the capacity observers to make judgments on differences with spectral power distribution source used. The present work describes a visual discrimination experiment whose results confirm existence relationship between and capacities observers.

Abstract It is well known that men and women may experience, perceptually cognitively, the appearance of color differently. One possible physiological factors underlying these differences a sexual dimorphism in gene encodes photopigment long‐wavelength‐sensitive cones retina, manifest different frequency expression women. The present work describes psychophysical experiment revealed significant perception between women, consequently advises separate treatment two populations. © 2007 Wiley...

In a previous work [J. Opt. Soc. Am. A29, A209 (2012)], we presented visual color discrimination experiment whose results established the existence of relationship between correlated temperature (CCT) light source and capacities observers. The indicated statistically significant difference in unequal sample pairs when using sources different temperatures, with capacity being greater higher source's temperature. That employed an RGBA–LED configured three temperatures: 2800, 5000, 6500 K....

Virtual reality has reached a great maturity in recent years. However, the quality of its visual appearance still leaves room for improvement. One most difficult features to represent real-time 3D rendered virtual scenes is color fidelity, since there are many factors influencing faithful reproduction color. In this paper we introduce method improving fidelity systems based rendering systems. We developed management system divided into two levels. At first level, applied only light sources...

The present article concerns the spontaneous conceptions held about principle of action and reaction. A broad survey was conducted students aged 12 to 21 years teachers, it shown that third dynamics is in fact a great unknown, even for undergraduates following scientific courses many teachers science. By defining "consistency" application these alternative ideas, existence form authentic "minitheories" (implicit theories) can be proved. empirical analysis genesis this knowledge further...

Since there is no information in the green belt of Córdoba, Argentine, about use instruments to measure leaf area index (IAF) through light interception potato crop (Solanum tuberosum L.), a study was developed with objectives of: i) evaluating employment and capacity an optic instrument determine IAF crop; ii) verifying ground cover (%C) using alternative measurements canopy development estimate intercepted radiation (fAPAR).The were carried out during 2005 (from February 4 June 1),...

Abstract In this work, we present an online test designed to ascertain what type of misconceptions people may have about color perception. It is noteworthy that only 15.7% the over 20,000 respondents answered correctly, and vast majority (78.2%) incorrect response patterns on our matched just four sequences, corresponding with types misconceptions. © 2016 Wiley Periodicals, Inc. Col Res Appl 41, 325–329,

There are many spontaneous conceptions related to the principle of action and reaction for two bodies in static contact. A study a broad sample students showed Newton's third law be great unknown most them. The were found consistent, forming authentic minitheories (implicit theories) with general laws governing interactions. This consistency evolves over course students' education, reflecting changes their modes learning.

This work presents the design, development, testing and validation of a Photonic Virtual Laboratory, highlighting study LEDs. The was conducted from conceptual, experimental didactic standpoint, using e-learning m-learning platforms. Specifically, teaching tools that help ensure our students perform significant learning have been developed. It has brought together scientific aspect, such as LEDs, with techniques generation transfer knowledge through selection, hierarchization structuring...

Abstract A set of computer simulations with a higher degree realism is presented. These hyper‐realistic simulations, used to teach basic concepts about color, were developed using the POV‐Ray software. The main aim these provide our students didactic tool in addition their traditional laboratory practice, which can be easily implemented e‐learning teaching platforms. optical systems have resulted graphical outputs that achieve photographic quality, helped students, even those less capacity...

Existing color quality indices for light sources provide broad information about different dimensions related to quality. Color fidelity, harmony, and gamut area are concepts these indices, industry requests this information. For the last few years, LED have been widely used at home work, now a rendering index that solves problem of underestimation type source is needed score subjective assessments made by real observers fidelity. In has studied in two ways, theoretically experimentally,...

This work presents an educational simulation to support students' learning about the formation of rainbow. The main aim is provide our students with a didactic tool in addition their traditional laboratory practice, which can be easily implemented e-learning teaching platforms. A system consisting flask filled water and screen rounded aperture placed between sun was simulated; this way faint rainbow seen on simulated screen. interactive nature allowed perform some alterations that would...