Relevant bibliographies by topics / RGB LED

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'RGB LED'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "RGB LED"

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Hung, Chih Ching, Chi Chang Hsieh, Yan Huei Li, and Chyun Chau Lin. "LED Color Mixing Mechanism Design." Applied Mechanics and Materials 284-287 (January 2013): 2894–98. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2894.

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LED is the solid-state light source of the 21st century that ranges from white light to any color in the entire spectrum. LED lights create static or dynamic illumination in indoor lighting applications. Modern indoor lighting fixtures not only provide illumination, but also are the primary elements that create the atmosphere. The use of gradual mixing of lights or different colors not only makes lights fit more people’s physical and psychological needs, but also improve one’s aesthetic perspectives. However, the LED color mixing technique based on RGB colors requires the package of the RGB chips in on single space for the creation of color mixing through the control of voltage and current. An innovative color mixing technique was proposed in this study. A linkage mechanism was introduced. The individual RGB chips were installed in 3 sets of four-bar linkages to enable color mixing by driving the RGB chips with the crank of the mechanism. The color mixing effects provide a continuing change of colors to meet people’s requirements for color mixing fixtures in certain scenarios. The fixtures incorporating this design can be used for stage lighting and biomedical engineering testing.
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Hsiang, En-Lin, Ziqian He, Yuge Huang, Fangwang Gou, Yi-Fen Lan, and Shin-Tson Wu. "Improving the Power Efficiency of Micro-LED Displays with Optimized LED Chip Sizes." Crystals 10, no. 6 (June 8, 2020): 494. http://dx.doi.org/10.3390/cryst10060494.

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Micro-LED (light-emitting diode) is a potentially disruptive display technology, while power consumption is a critical issue for all display devices. In this paper, we develop a physical model to evaluate the power consumption of micro-LED displays under different ambient lighting conditions. Both power efficiency and ambient reflectance are investigated in two types of full color display structures: red/green/blue (RGB) micro-LEDs, and blue-LED pumped quantum dots color-conversion. For each type of display with uniform RGB chip size, our simulation results indicate that there exists an optimal LED chip size, which leads to 30–40% power saving. We then extend our model to analyze different RGB chip sizes, and find that with optimized chip sizes an additional 12% average power saving can be achieved over that with uniform chip size.
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Choi, Seo Young, Du Sik Park, Chang Yeong Kim, Janos Schanda, Balazs Kranicz, and Peter Csuti. "54.1: Color Prediction in an LCD using RGB-LED Backlights." SID Symposium Digest of Technical Papers 43, no. 1 (June 2012): 721–24. http://dx.doi.org/10.1002/j.2168-0159.2012.tb05885.x.

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Wen, Senfar. "P-34: Color Gamut and Power Consumption of a RGBW LCD Using RGB LED Backlight." SID Symposium Digest of Technical Papers 40, no. 1 (2009): 1216. http://dx.doi.org/10.1889/1.3256510.

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Haverinen, Hanna M., Risto A. Myllyla, and Ghassan E. Jabbour. "Inkjet Printed RGB Quantum Dot-Hybrid LED." Journal of Display Technology 6, no. 3 (March 2010): 87–89. http://dx.doi.org/10.1109/jdt.2009.2039019.

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T. N. Ghorude, T. N. Ghorude, and A. D. Shaligram A. D. Shaligram. "Microcontroller Driven RGB Led System For Tristimulus Surface Colorimetry." Indian Journal of Applied Research 1, no. 5 (October 1, 2011): 81–83. http://dx.doi.org/10.15373/2249555x/feb2012/30.

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Galal, Mariam, Wai Pang Ng, Richard Binns, and Ahmed Abd El Aziz. "Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link." Sensors 20, no. 20 (October 10, 2020): 5754. http://dx.doi.org/10.3390/s20205754.

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This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of which the red sub-LED is employed as photodetector in photovoltaic mode while the green sub-LED is the transmitter. The LED photodetector is characterized in the terms of its noise characteristics and its response to the light intensity. The system performance is then analysed in terms of bandwidth, bit error rate (BER) and the signal to noise ratio (SNR). A matched filter is proposed, which optimises the performance and increases the error-free distance.
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Chen, Wei, Lang Wang, Lian Qiao Yang, and Jian Hua Zhang. "Design of High Power RGB White Light Emitting Diodes." Applied Mechanics and Materials 423-426 (September 2013): 2645–50. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.2645.

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In this paper, thermal performance of RGB white LED packages was optimized by thermal simulation using the Finite Volume method. A Monte Carlo photon simulation method was utilized for the analysis of optical performance of LED in quantitative terms. It was found that the distribution of RGB chips has great effect both on the thermal and optical performance of the RGB white LEDs. The tilted angle, material of the reflection cup, and the shape of encapsulant were found to be the key factors which determine the extraction efficiency of LED package. It is demonstrated that the combination of optical and thermal simulation provides a comprehensive optimization approach for a design of high efficient RGB white LED package.
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Kwon, Jin Hyuk. "A color‐filterless LCD with RGB LED and lenticular‐lens arrays." Journal of Information Display 11, no. 2 (June 2010): 45–48. http://dx.doi.org/10.1080/15980316.2010.9652118.

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Yu-Kang Lo, Kuan-Hung Wu, Kai-Jun Pai, and Huang-Jen Chiu. "Design and Implementation of RGB LED Drivers for LCD Backlight Modules." IEEE Transactions on Industrial Electronics 56, no. 12 (December 2009): 4862–71. http://dx.doi.org/10.1109/tie.2009.2026771.

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Dissertations / Theses on the topic "RGB LED"

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Coufal, Miroslav. "Modulární RGB LED displej." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220135.

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The aim of this master’s thesis was the design RGB LED display with Ethernet interface. I created a display module, controlled by a microcontroller ATmega 2560-16AU. These modules can be connected via a serial RS485 standard. Ethernet connection is made via plug-in interface that uses the programmable module Rabbit RCM 3200. I documented a proposal. I tested designed device.
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Zemánek, Petr. "Modulární RGB LED displej s rozhraním Ethernet." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220700.

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This thesis deals with an electronic circuit and a PCB of a modular RGB LED display with the Ehernet interface. Firstly, author describes a RGB colour model, features of RGB LED displays, ways of control them. The next chapter contains a short description of the Ethernet interface, UDP and TCP protocols and a lwIP TCP/IP stack. The last theoretical chapter is an introduction to ARM Cortex-M3 and Cortex-M4 based microcontrollers. The next chaper is deals with a hardware design of the modular RGB LED display. The device is designed to be modular. Individual devices can be combosed together and create a larger display. Data from the Ethernet interface will be displayed on the RGB LED matrix, resolution of the matrix is 32 × 32 (1024 diodes). A refresh frequency is 100 Hz, a color depth is High color (16 bits) and a scanning 1/16 (two rows is driven at the same time). The next chapter describes the firmware for the RGB LED display, all its logical parts including a web page. Author also created the PC application, which sends pictures using UDP protocol to individual modules.
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Biba, Panagiota. "New waviness measurement system using RGB LED lights." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28314.

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Due to the rapid technological developments in the car industry and the high quality demands of customers, manufacturers and researchers focus on the reduction of surface roughness making use of various surface topography measurement systems. This master thesis focuses on development of a waviness measurement system (WMS) at Volvo Cars where light from different heights and angles illuminates the surface of an extended object in order to acquire images with different intensities due to shadowing effect and reflection. With this, surface irregularities and imperfections can be detected both in polished and unpolished surfaces for improving the car panels in the manufacturing process.  The initial WMS idea was to illuminate the surface at different heights from the four corners of a dark room using 20 flash lights and a camera positioned exactly on the top of the surface in the middle of the room. The first light goes on and the image is acquired. This procedure continues for all flash lights in 19s.The acquired images were evaluated by Matlab application. With the new WMS system flash lights are replaced by 32 RGB COB LED lights using the DMX512 protocol to communicate with them. The system runs in 9s which is half the time of the old WMS system. New LabView and Matlab codes were adjusted to the new parameters and devices. In the end, measurements were taken with different surfaces, exposure times and color lights. Details of the new devices and software are analyzed in this thesis.
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Šunka, Pavel. "Aplikace FPGA v řízení maticových displejů LED." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376970.

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The thesis gives an overview of the issue of control of full-color RGB LED panels with a large number of rows and columns. It deals with communication protocols for image transfer and information exchange. It focuses on implementing the FPGA into the RGB LED control structure. In the first half, the thesis focuses on deepening the theoretical knowledge about LED technologies, their control and color display. It further solves communication with superior elements. The last part of the theory is dedicated to FPGA circuits. The second part of the thesis describes the practical design of the FPGA circuit from UART and SPI communication through data storage from the communication to the panel control itself.
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Medrano, Arias Eduardo Alfredo. "Rediseño e implementación de un sistema de iluminación para espacios publicitarios usando Led RGB." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2010. http://tesis.pucp.edu.pe/repositorio/handle/123456789/509.

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Los sistemas de iluminación son desarrollos que permiten al hombre visualizar de una mejor forma a los objetos desde un punto de vista artístico y funcional. Estos sistemas tienen un amplio campo de aplicación en nuestra vida diaria. Están referidos al proceso en el cual la iluminación forma parte del diseño del objeto usando dispositivos capaces de satisfacer el tipo, calidad y color de luz que se requiere. Dado que en el Perú los sistemas de iluminación cumplen una gran importancia como elemento que forma parte del diseño de espacios públicos y comerciales, es necesario enfrentar el problema de la iluminación conociendo las características de ella. Por esto se plantea la utilización de una nueva tecnología como el LED (Light-Emitting Diode) de potencia en el desarrollo de sistemas de iluminación aprovechando las características que este dispositivo trae. La presente tesis consiste en el rediseño e implementación de un sistema de iluminación aplicado a un display1 publicitario de una superficie de 25x25cm2. Uno de los objetivos es mejorar la iluminación mediante la aplicación de la nueva tecnología, el LED RGB (Red Green Blue) que permite obtener un color determinado, rojo, verde y azul; además de variar su intensidad de brillo. Con el uso de lentes convergentes es posible mezclar los colores primarios para obtener los colores secundarios; amarillos, cian y magenta; y el color blanco. El siguiente documento se encuentra dividido en cuatro capítulos principales; el primero de ellos explica la importancia de la iluminación publicitaria en espacios publicitarios. El segundo capítulo brinda información sobre la evolución de los sistemas de iluminación convencionales hasta llegar a la tecnología LED. El tercer capítulo muestra las consideraciones para el rediseño e implementación del sistema, los componentes elegidos, así como los cálculos y criterios de selección. El último capítulo menciona los resultados obtenidos, análisis de costo y conclusiones finales. Al final del documento se muestra las recomendaciones, sobre el rendimiento del sistema de iluminación y como mejorarlo, las referencias utilizadas y en la sección de anexos hojas de datos de los componentes utilizados.
Tesis
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Palmqvist, Linnea, and Hillevi Nilsson. "Musikvisualisering med LED-kub." Thesis, Uppsala universitet, Institutionen för materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-412444.

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En 4x4x4 kub konstrueras av RGB LED's med integrerad drivrutin och via en Arduino styrs den av musiken som spelas. Arduinon får musiken som input och med hjälp av fouriertransform delas signalen upp i 128 logaritmiskt uppdelade bins. Efter många olika teorier om hur bas, volym och känsla skulle kunna bestämmas i Arduinon bestämdes slutligen att de skulle bero av olika frekvensintervall; basen i 50-250 Hz, volymen i 500-2000 Hz och känslan i 2000-4000 Hz. Basen förflyttar mönstret framåt, volymen bestämmer ljusintensiteten (mellan 50% - 100% av max) och känslan avgör vilket av 6 mönster som aktiveras.
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Ashiabor, Awo Dede O. "A design for an RGB LED driver with independent PWM control and fast settling time." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/41251.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.
Includes bibliographical references (leaves 76-77).
A small sized and efficient method to power RGB LEDs for use as backlights in flat panel displays is explored in this thesis. The proposed method is to drive a parallel switched connection of LEDs with a single Average Mode Controlled buck regulator.Specifications for the switching regulator and control circuitry are described. The application circuit demonstrates current settling times between 7[mu]s and 30[mu]s at a switching frequency of 290kHz. Current settling is improved at higher switching frequencies, with settling times approaching a 2[mu]s to 4[mu]s range at 1MHz switching.
by Awo Dede O. Ashiabor.
M.Eng.
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Stuchi, José Augusto. "Registro de imagens por correlação de fase para geração de imagens coloridas em retinógrafos digitais utilizando câmera CCD monocromática." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18152/tde-18072013-110903/.

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A análise da retina permite o diagnostico de muitas patologias relacionadas ao olho humano. A qualidade da imagem e um fator importante já que o médico normalmente examina os pequenos vasos da retina e a sua coloração. O equipamento normalmente utilizado para a visualização da retina e o retinógrafo digital, que utiliza sensor colorido com filtro de Bayer e luz (flash) branca. No entanto, esse filtro causa perda na resolução espacial, uma vez que e necessário um processo de interpolação matemática para a formação da imagem. Com o objetivo de melhorar a qualidade da imagem da retina, um retinógrafo com câmera CCD monocromática de alta resolução foi desenvolvido. Nele, as imagens coloridas são geradas pela combinação dos canais monocromáticos R (vermelho), G (verde) e B (azul), adquiridos com o chaveamento da iluminação do olho com LED vermelho, verde e azul, respectivamente. Entretanto, o pequeno período entre os flashes pode causar desalinhamento entre os canais devido a pequenos movimentos do olho. Assim, este trabalho apresenta uma técnica de registro de imagens, baseado em correlação de fase no domínio da frequência, para realizar precisamente o alinhamento dos canais RGB no processo de geração de imagens coloridas da retina. A validação do método foi realizada com um olho mecânico (phantom) para a geração de 50 imagens desalinhadas que foram corrigidas pelo método proposto e comparadas com as imagens alinhadas obtidas como referência (ground-truth). Os resultados mostraram que retinógrafo com câmera monocromática e o método de registro proposto nesse trabalho podem produzir imagens coloridas da retina com alta resolução espacial, sem a perda de qualidade intrínseca às câmeras CCD coloridas que utilizam o filtro de Bayer.
The analysis of retina allows the diagnostics of several pathologies related to the human eye. Image quality is an important factor since the physician often examines the small vessels of the retina and its color. The device usually used to observe the retina is the fundus camera, which uses color sensor with Bayer filter and white light. However, this filter causes loss of spatial resolution, since it is necessary a mathematical interpolation process to create the final image. Aiming at improving the retina image quality, a fundus camera with monochromatic CCD camera was developed. In this device, color images are generated by combining the monochromatic channels R (red), G (green) and B (blue), which were acquired by switching the eye illumination with red, green and blue light, respectively. However, the short period between the flashes may cause misalignment among the channels because of the small movements of the eye. Thus, this work presents an image registration technique based on phase correlation in the frequency domain, for accurately aligning the RGB channels on the process of generating retina color images. Validation of the method was performed by using a mechanical eye (phantom) for generating 50 misaligned images, which were aligned by the proposed method and compared to the aligned images obtained as references (ground-truth). Results showed that the fundus camera with monochromatic camera and the method proposed in this work can produce high spatial resolution images without the loss of quality intrinsic to color CCD cameras that uses Bayer filter.
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Guerreiro, Thiago Brito. "Desenvolvimento e aplicação de um fotômetro/fluorímetro microcontrolado à base de LED RGB para a determinação de espécies de interesse analítico." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/7716.

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In this work, a photometer/fluorometer micro-controlled (P2FM) multifunctional, portable, communicated by USB 2.0, robust, easy handling and with low consumption of energy was developed. The P2FM was built using a micro-controlled (PIC-18F2455) as central unit of process (CPU), two tricolors LEDs (470, 528, 621 nm) as source of radiation, a multichannel sensor (TCS3200) and the management program wrote in Visual Studio. One of the two LED was used as radiation source for photometric mode. The TCS-3200 is a multichannel sensor with four photosensitive tracks: 480, 540, 750 e 830 nm, being that selection of track is performed by program controlled. The management program operates sending functions for microcontroller, record of dates and storage of signal (*.txt) through of USB port 2.0 (5.0 VCC, 300 mA). The P2FM is compact, with 3.5 cm × 7.0 cm × 8.5 cm size and 159.4 g of weight, considered as a portable device. In the program is selected of function mode: photometer or fluorimeter. In the analytic performance test by photometric mode, were used three solutions amaranth (AM), blue light (AB) and tartrazine (TT). The detection limits obtained were 1.6 × 10−7, 5.4 × 10−7 e 1.9 × 10−6 mol L−1 for AM, AB and TT, respectively. The quantification limits obtained were 4.8 × 10−7, 1.6 × 10−6 e 5.9 × 10−6 mol L−1 for AM, AB and TT, respectively. The correlation coefficients were AM = 0.997, AB = 0.975 and TT = 0.994. The analytic performance for fluorometric mode was carried using in both fluorescein (FL) and Rodamine 6G (R6G) solutions, were obtained a detection limit of 8.3 × 10−8 and 4.79 × 10−8 mol L−1, respectively for FL and R6G. The correlations coefficients were 0.997 for FL and 0.999 for R6G. Also, the proposed device was successfully used to sulphite determination in drinks, total hardness in water, determination of stability constant and study of stoichiometry of a chromogenic complex, aiming to show any applications of photometer/fluorimeter. The constant of formation obtained was 5.04 × 1018 is concordant with that presented in previous reports 6.2 × 1018. In sulphite determinations on eight samples of drinks, the paired studen’s t-test showed that reference method and photometric method using P2FM was 0.66 times smaller than critic value (2.36, α = 0.05). The total hardness in water was determined by fluorometric method, being that the P2FM showed best sensibility 8.94 × 106 that a determination using the RF5301/PC spectrofluorometer. The paired studen’s t-test (α = 0.05) no showed significant differences, calculated t (0.36) small than tabulated t (2.01).
Um fotômetro/fluorímetro microcontrolado (P2FM) multifuncional, portátil, comunicado via USB 2.0, robusto, de fácil operação e com baixo consumo de energia foi desenvolvido neste trabalho. O P2FM foi construído utilizando-se um microcontrolador (PIC-18F2455) como unidade central de processamento (CPU), dois LEDs tricolores (470, 528, 621 nm) como fonte de radiação, um sensor multicanal (TCS3200), e o programa de gerenciamento escrito em Visual Studio. Um dos LED foi utilizado como fonte de radiação para o modo fotométrico e o outro para o modo fluorimétrico. O TCS-3200 é um sensor multicanal com quatro faixas fotossensíveis: 480, 540, 750 e 830 nm, sendo que a seleção da faixa é realizada via programa de controle. O programa de gerenciamento atua no envio de funções para o microcontrolador, registro de dados e armazenamento do sinal (*.txt) através da porta USB 2.0 (5,0 VCC, 300 mA). O P2FM é compacto, com dimensões de 3,5 cm × 7,0 cm × 8,5 cm e massa de 159,4 g, configurando-se um instrumento portátil. No programa é selecionado o modo de funcionamento: fotométrico ou fluorimétrico. Nos testes de desempenho analítico no modo fotométrico foram empregadas soluções dos corantes amaranto (AM), azul brilhante (AB) e tartrazina (TT). Os limites de detecção obtidos foram 1,6 × 10, 5,4 × 107 e 1,9 × 106 mol L1 para AM, AB e TT, respectivamente. Os limites de quantificação obtidos foram 4,8 × 107, 1,6 × 10 e 5,9 × 106 mol L1 para AM, AB e TT, respectivamente. Os coeficientes de correlação foram: AM = 0,997, AB = 0,975 e TT = 0,994. O desempenho analítico no modo fluorimétrico foram realizados empregando-se soluções de fluoresceína (FL) e Rodamina 6G (R6G), sendo obtidos um limite de detecção de 8,3 × 108 e 4,79 × 108 mol L1, respectivamente para FL e R6G. Os coeficientes de correlação foram 0,997 para FL e 0,999 para R6G. Ademais, o instrumento proposto foi aplicado com sucesso na determinação de sulfito em bebidas, dureza total em água e determinação da constante de estabilidade e estequiometria de um complexo cromogênico, objetivando mostrar algumas aplicações do fotômetro/fluorímetro. A constante de formação obtida (5,04 × 1018) está em consonância com aquela apresentada na literatura, 6,2 × 1018. Na determinação de sulfito em oito amostras de bebidas, o teste t-pareado mostrou que método de referência e o método fotométrico usando P2FM foi de 0,66 menor do que o valor crítico (2,36, α = 0,05). A dureza da água foi determinada empregando-se o método fluorimétrico, sendo que o P2FM apresentou melhor sensibilidade 8,94 × 106 que a determinada empregandose o espectrofluorímetro (RF5301/PC). O teste t-pareado (α = 0,05) mostrou que não há diferença significativa, t critico (0,36) menor que o t crítico (2,01).
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Pontes, Aline Santos de. "Desenvolvimento de um fotômetro LED-Vis portátil e microcontrolado por Arduino." Universidade Federal da Paraí­ba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/7136.

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A portable and low-cost photometer is proposed in this work. The instrument uses a tri-color light emitting diode (LED) as its radiation source in maximum emission wavelengths of 480 (blue), 534 (green) and 630 nm (red). It employs a phototransistor with spectral sensitivity in the visible region, as well as an Arduino microcontroller. Its analytical performance was evaluated by means of quantitative analysis (analytical curves), whose models were validated by analysis of variance (ANOVA). The instrument was applied to determine sunset yellow dye in energy drinks and sodas, and potassium permanganate pills. For comparison purposes, a commercial spectrophotometer was used to construct the calibration curves for the reference method. Applying the paired t-test at a 95 % confidence level for the concentration results obtained with the two instruments, we observed no statistically significant difference. Furthermore, accurate concentration estimates were obtained for the analytes as confirmed by the low relative standard deviation range of 0.2 and 0.5%, respectively, for both the dye and the permanganate. The proposed photometer might be an economically viable alternative to spectroscopic analysis, especially in teaching laboratories with limited financial resources or lacking in highly qualified personnel.
Um fotômetro portátil e de baixo custo é proposto neste trabalho. Esse instrumento utiliza um diodo emissor de luz (LED-Light Emitting Diode) tricolor como fonte de radiação nos comprimentos de onda do máximo de emissão de 480 (azul), 534 (verde) e 630 nm (vermelho). Além disso, emprega um fototransistor com sensibilidade espectral na região do visível como fototransdutor, bem como um microcontrolador Arduino como unidade de controle. Seu desempenho analítico foi avaliado por meio de análises quantitativas baseadas em curvas analíticas, cujos modelos foram validados por meio da Análise de Variância (ANOVA). O instrumento foi aplicado à determinação do corante amarelo crepúsculo em amostras de refrigerantes e bebidas energéticas e de permanganato de potássio em amostras de medicamentos. Para fins de comparação, um espectrofotômetro comercial foi empregado para construir as curvas analíticas do instrumento de referência. Aplicando o teste t-emparelhado ao nível de 95% de confiança para os resultados de concentração obtidos com os dois instrumentos, observa-se que não houve diferença estatisticamente significativa. Ademais, resultados precisos nas estimativas das concentrações dos analitos foram obtidos sendo atestado pelo baixo desvio padrão relativo conjunto de 0,2 e 0,5%, respetivamente, para o corante e permanganato. O fotômetro proposto pode ser uma alternativa economicamente viável para análises espectrométricas, sobretudo, em laboratórios de ensino com poucos recursos financeiros e carentes de pessoal altamente qualificado.
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Books on the topic "RGB LED"

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gsung rab rin chen bang mdzod kyi/ /sgo 'byed sa bcad lde mig lags. Kang ding: Dkar mdzes khul rtsom sgyur cu, 1990.

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Hutchings, Lee Rob, and Blake David 1944-, eds. Superted returnsto Creepy Castle: Superted and the rattlesnake ; illustrations by Rob Lee and David Blake. London: Carnival, 1986.

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Padma-dkar-po, ʼBrug-chen IV, 1527-1592, author, ed. Shes rab snying po dang rten ʼbrel, bden bzhi, rgyal sras lag len, bzang spyod, byams smon bcas kyi ʼgrel pa bzhugs so. Kathmandu: Khenpo Shedup Tenzin, 2015.

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Śes-bya-kun-rig, Roṅ-ston. Shes rab kyi pha rol du phyin pa nyams su len paʼi lam gyi rim pa =: Path to the perfection of wisdom : three parts. Delhi: Dpal-lden Sa-kyaʼi gsung rab Publications, 1995.

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Dol-rgyal gyi dṅos yod gnas tshul rab gsal legs ñes bden rdzun rnam ʼbyed luṅ rigs gser gyi lde mig ces bya ba bźugs so. Mundgod, Distt. N.K., Karnataka: Geluk International Foundation, 2013.

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Śes rab kyi pha rol tu phin pa mṅon par rtogs paʼi rgyan gyi don gsal bar byed paʼi dogs sloṅ rig brgyaʼi sgo ʼbyed lde mig ces bya ba bźugs so. Pe-cin: Mi rigs dpe skrun khaṅ, 2003.

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Nam-mkhaʼ-bstan-ʼdzin-dbaṅ-gi-rgyal-po. Rab ʼbyams phyi naṅ gsaṅ baʼi bkaʼ rgyud kyi spyi don phyag len ñe mkho blo rdeg du a dar śaʼi dkyil ʼkhor: Instructions on the ritual practices of New Bon (Bon Gsar) traditions. Dehra Dun, U.P: Minling Youngdrung Ling Bon Monastery, 1985.

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Lee, Y., ed. Rob Lee: The Autobiography. Not Avail, 2000.

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Skinner, Tony. RGT - Improvising Lead Guitar Advanced. Registry Publications Ltd, 2000.

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Skinner, Tony. RGT - Improvising Lead Guitar Intermediate. Registry Publications Ltd, 2000.

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Book chapters on the topic "RGB LED"

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Sree, T. Kavya, V. Swetha, M. Sugadev, and T. Ravi. "IoT Based RGB LED Information Display System." In Advances in Intelligent Systems and Computing, 431–42. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6981-8_34.

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Xu, Bo, Li Wang, Jian Kang, Cong Qiu, and C. Patrick Yue. "An RGB-LED Driver with Feed-Forward Equalization Used for PAM-4 Visible Light Communication." In Machine Learning and Intelligent Communications, 228–34. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66785-6_26.

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Mouli, Surej, Ramaswamy Palaniappan, and Ian P. Sillitoe. "A Configurable, Inexpensive, Portable, Multi-channel, Multi-frequency, Multi-chromatic RGB LED System for SSVEP Stimulation." In Brain-Computer Interfaces, 241–69. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10978-7_9.

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Bartmann, Erik, and Jörn Donges. "Sag es mit Farben! Die RGB-LEDs (Projekt 9)." In Open Robots für Maker, 217–27. München: Carl Hanser Verlag GmbH & Co. KG, 2018. http://dx.doi.org/10.3139/9783446456129.015.

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Bartmann, Erik, and Jörn Donges. "Das Farbenspiel – weitere Einsatzmöglichkeiten der RGB-LEDs (Projekt 10)." In Open Robots für Maker, 229–44. München: Carl Hanser Verlag GmbH & Co. KG, 2018. http://dx.doi.org/10.3139/9783446456129.016.

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Haverinen, Hanna, and Ghassan E. Jabbour. "Application of Inkjet Printing in High-Density Pixelated RGB Quantum Dot-Hybrid LEDs." In Inkjet-Based Micromanufacturing, 217–36. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527647101.ch14.

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Borello, D., A. Salvagni, F. Rispoli, and K. Hanjalic. "LES of the Flow in a Rotating Rib-Roughened Duct." In Direct and Large-Eddy Simulation IX, 283–88. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14448-1_35.

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Fattah, Hossam. "RGB LED." In LTE™ Cellular Narrowband Internet of Things (NB-IoT), 189–96. CRC Press, 2021. http://dx.doi.org/10.1201/9781003120018-18.

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"On the development of a novel music player with RGB-LED." In Electronic Engineering and Information Science, 241–44. CRC Press, 2015. http://dx.doi.org/10.1201/b18471-57.

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Gou, Fangwang, En-Lin Hsiang, and Shin-Tson Wu. "Angular color shift and power consumption of RGB micro-LED displays." In Semiconductors and Semimetals, 323–44. Elsevier, 2021. http://dx.doi.org/10.1016/bs.semsem.2020.12.003.

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Conference papers on the topic "RGB LED"

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Znamenskiy, Dmitry, and Oleg Belik. "Computation of minimal RGB LED backlight intensity for RGBW LCD displays." In 2009 IEEE 13th International Symposium on Consumer Electronics. IEEE, 2009. http://dx.doi.org/10.1109/isce.2009.5156822.

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Galal, Mariam, Wai Pang Ng, Richard Binns, and Ahmed Abd El Aziz. "Characterization of RGB LEDs as Emitter and Photodetector for LED-to-LED Communication." In 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP). IEEE, 2020. http://dx.doi.org/10.1109/csndsp49049.2020.9249617.

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Bautista, Meriam Gay V., Wan-Rone Liou, and Mei-Ling Yeh. "Dimmable multi-channel RGB LED driver." In 2013 IEEE ECCE Asia Downunder (ECCE Asia 2013). IEEE, 2013. http://dx.doi.org/10.1109/ecce-asia.2013.6579270.

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Hasan, Jaber, Do Hung Nguyen, and Simon S. Ang. "A RGB-driver for LED display panels." In 2010 IEEE Applied Power Electronics Conference and Exposition - APEC 2010. IEEE, 2010. http://dx.doi.org/10.1109/apec.2010.5433586.

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Junhao Hu, Francois Chin Po Shin, Kwok Yuen Sam, and Changyuan Yu. "LED-camera communication system with RGB coding." In 2012 Photonics Global Conference (PGC). IEEE, 2012. http://dx.doi.org/10.1109/pgc.2012.6458082.

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Man, Kwong, and Ian Ashdown. "Accurate colorimetric feedback for RGB LED clusters." In SPIE Optics + Photonics, edited by Ian T. Ferguson, Nadarajah Narendran, Tsunemasa Taguchi, and Ian E. Ashdown. SPIE, 2006. http://dx.doi.org/10.1117/12.683239.

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Lin, Jian-Shian, Hsiu-Chen Hsu, Ming-Wen Chang, and Chung-Ping Liu. "RGB LED illuminator for LCoS panel display." In Optics & Photonics 2005, edited by Roland Winston and R. John Koshel. SPIE, 2005. http://dx.doi.org/10.1117/12.616219.

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Xumin Shao, Yong Cai, Huadong Li, and Mingguang Wu. "Research of heat dissipation of RGB-LED backlighting system on LCD." In 2009 7th IEEE International Conference on Industrial Informatics (INDIN). IEEE, 2009. http://dx.doi.org/10.1109/indin.2009.5195906.

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Schake, Markus, and Peter Lehmann. "Perturbation resistant RGB-interferometry with pulsed LED illumination." In Optical Micro- and Nanometrology, edited by Christophe Gorecki, Anand K. Asundi, and Wolfgang Osten. SPIE, 2018. http://dx.doi.org/10.1117/12.2306221.

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Durrani, Shaheer Shaida, and Abu Zaharin Ahmad. "An efficient digitally controlled for RGB LED driver." In 2017 4th IEEE International Conference on Engineering Technologies and Applied Sciences (ICETAS). IEEE, 2017. http://dx.doi.org/10.1109/icetas.2017.8277843.

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Reports on the topic "RGB LED"

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Gender mainstreaming in local potato seed system in Georgia. International Potato Center, 2020. http://dx.doi.org/10.4160/9789290605645.

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This report presents the study findings associated with the project “Enhancing Rural Livelihoods in Georgia: Introducing Integrated Seed Health Approaches to Local Potato Seed Systems” in Georgia. It also incorporates information from the results of gender training conducted within the framework of the USAID Potato Program in Georgia. The study had three major aims: 1) to understand the gender-related opportunities and constraints impacting the participation of men and women in potato seed systems in Georgia; 2) to test the multistakeholder framework for intervening in root, tuber, and banana (RTB) seed systems as a means to understand the systems themselves and the possibilities of improving gender-related interventions in the potato seed system; and 3) to develop farmers’ leadership skills to facilitate women’s active involvement in project activities. Results of the project assessment identified certain constraints on gender mainstreaming in the potato seed system: a low level of female participation in decision-making processes, women’s limited access to finances that would enable their greater involvement in larger scale potato farming, and a low awareness of potato seed systems and of possible female involvement in associated activities. Significantly, the perception of gender roles and stereotypes differs from region to region in Georgia; this difference is quite pronounced in the target municipalities of Kazbegi, Marneuli, and Akhalkalaki, with the last two having populations of ethnic minorities (Azeri and Armenian, respectively). For example, in Marneuli, although women are actively involved in potato production, they are not considered farmers but mainly as assistants to farmers, who are men. This type of diversity (or lack thereof) results in a different understanding of gender mainstreaming in the potato seed system as well. Based on the training results obtained in three target regions—Akhalkalaki, Akhaltsikhe, and Marneuli—it is evident that women are keen on learning new technologies and on acquiring updated agricultural information, including on potato production. It is also clear that women spend as much time as men do on farming activities such as potato production, particularly in weeding and harvesting. However, women are heavily burdened with domestic work, and they are not major decision-makers with regard to potato variety selection, agricultural investments, and product sales, nor with the inclusion of participants in any training provided. Involving women in project activities will lead to greater efficiency in the potato production environment, as women’s increased knowledge will certainly contribute to an improved production process, and their new ideas will help to improve existing production systems, through which women could also gain confidence and power. As a general recommendation, it is extremely important to develop equitable seed systems that take into consideration, among other factors, social context and the cultural aspects of local communities. Thus, understanding male and female farmers’ knowledge may promote the development of seed systems that are sustainable and responsive to farmers’ needs and capacities.
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