ENGINEERING RESEARCH PAPERS

LED-LIGHT EMITTING DIODE IEEE PAPER 2017




Analysis of Arabidopsis Light-sensitive Mutants Grown Under Different Ratios of LED and Com-pared to Fluorescent Lighting
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To test this, we fitted half of a walk-in chamber with LumiGrow LumiBar LED lamps (red, blue, and white lights) and maintained the other half of the chamber with the traditional fluorescent lighting (cool white bulbs). We measured plant growth traits in six Arabidopsis genotypes selected

Spectroscopic studies of commercial LED lights the emerging danger of Blue-Light Hazard
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This paper was formed to put some light on the hazardous

Fabrication of Phosphor Converted White LED forSolid State Lighting Application
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Abstract Solid state lighting (SSL) refers to a type of lighting that utilizes light-emitting diodes (LEDs) as source of illumination rather than electrical filaments or gas. It is emerging as a promising option for domestic lighting due to several advantages like energy saving, high

Effects of Adjustment to Spectral Ratios of Supplemental LED Lighting on Minia-ture Rose Growth and Morphology
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Winter months in California have a Daily Light Integral (DLI) of 10-20, which is inadequate for optimal plant growth. To address this challenge, Light Emitting Diode (LED) lamps are beginning to be used in preference over High Intensity Discharge (HID) lamps for their Abstract This chapter describes how, in order to achieve low droop and high-efficiency light- emitting diodes (LEDs), we investigated the following multiple quantum wells (MQWs) and electron-blocking layer (EBL) design to enhance our LED devices: graded-thickness

Monochromic radiation through light-emitting diode (LED) positively augments in vitro shoot regeneration in Orchid (Dendrobium sonia)
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Abstract Monochromatic lights emitted by light-emitting diodes (LEDs) have generated great interest for efficient and controlled growth in vitro, especially of plants which are endangered or require specific intensity and wavelength of light. In the present study, we have evaluated

A Current-Mode Digital Controlled Buck-Boost DC-DC Converter for LED Driver
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Abstract-This paper presents a digital LED Driver that provides a high quality of the back light for display modules. The proposed LED driver is implemented in 0.18 um CMOS process. Proposed LED driver consists of three types of circuits, a buckboost converter,

Smart Rolling LED Display using Arduino and Bluetooth
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ABSTRACT This paper presents the overall design of Smart rolling LED Display using Arduino and Bluetooth with low cost and user can access multiple applications. If anyone wants to display the message they can send message through using android Bluetooth by

Fabrication of gas sensor based on p-type ZnO nanorods at room temperature under UV-LED illumination
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Abstract In the present study, the use of ZnO nanorods sensor under the irradiation of 400 nm UVLED illumination at room temperature was tested. The non-intentionally C-doped flower-like zinc oxide (ZnO) nanorods were synthesized through a chemical method at low

Effects of blue and red LED lights on soilless cultivated strawberry growth performances and fruit quality
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Summary The use of Light Emitting Diodes (LEDs) for protected cultures is quickly growing during the last years. Recent researches have demonstrated that it is possible to use LEDs alone and in combination with other lighting systems to manipulate plant behavior,

Characterisation of defects generated during constant current InGaN-on-silicon LED operation
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We studied the degradation of MOCVD-grown InGaN LEDs on Si substrates under constant current stressing. Characterisations using Deep Level Transient Spectroscopy and Electron Energy Loss Spectroscopy on active areas showed that the stressing had generated defects

Novel Flicker Migration and EMI Noise Reduction Circuit for AC Direct LED Lightings
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Abstract A novel AC direct light emitting diode (LED) driver circuit that uses flicker mitigation and the electromagnetic interference (EMI) noise reduction method is proposed in this study. This method is based on the current controls of the flicker mitigation capacitor using

Photocatalytical degradation of toluene and cyclohexane using LEd Illumination
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Heterogeneous photocatalysis is highly appreciated for its removal of contaminants from both water and air, since under specific conditions hydroxyl radicals are formed with the ability to mineralize various pollutants. In order to be activated, titanium dioxide requires illumination with a proper

Anti Pathogenic Ultraviolet LED Lighting
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ABSTRACT The present review was directed to assess the antibacterial movement of Miswak concentrates on periodontal pathogenic microbes. Materials and Methods: Miswak sticks were grounded to fine powder and after that ethanol furthermore, watery extraction

Design and Experiment of Slope-compensated Buck LED Driver
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Slope LEDDesign and Experiment of Slope-compensated Buck LED Driver Marn-Go Kim, Young-Seok Jung, and Nam-Ho Kim Pukyong National University A discrete time domain analysis for the slope- compensated buck LED driver is performed

LED light Supplementation on Growth
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Abstract An experiment was conducted in Horticulture Farm, Sher-e-Bangla Agricultural University during the period of December, 2015 to March, 2016 to evaluate the influence of day length extension with LED light supplement on growth, yield and seed production of

Manipulation of Broiler Growth Performance, Physiological and Fear Responses Using Three Monochromatic LED lights.
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Many light sources are used in the field of poultry production as incandescent light, fluorescent light and light-emitted dioxide (LED). LED is a special unique light source of semiconductor diode which characterized by a very significantly longer life that may reach

IoT and Public Weather Data Based Monitoring Control Software Development for Variable Color Temperature LED Street Lights
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Abstract Light Emitting Diode (LED) is quickly becoming the latest technology in the application of lighting on streets. By combining the concept of Internet of Things (IoT) and LED streetlight, this paper aims to apply the concept of microservices architecture so that the

Study on Thermal Analysis for Optimization LED Driver ICs
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This research was analyzed thermal characteristics that was appointed disadvantage when smart LED driver ICs was packaged and we applied extracted thermal characteristics for optimal layout design. We confirmed reliability of smart LED driver ICs package without

A biological melange and a peculiar led light could be a thaumaturgic approach to defeat manifold types of folliculitis in man and woman.
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ABSTRACT Nowadays PTD (photodynamic therapy) together with methyl aminolevulinate (MAL) pomades seem to be the goal and merit of all the vanguard dermatologists and aesthetic surgeons, who are determined to struggle radically the problems of folliculitis,

Economic Cost-Benefit Analysis of Smart LED Street Lights: Providing Free Public WiFi to the Linden Neighborhood
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Page 1. Economic Cost-Benefit Analysis of Smart LED Street Lights: Providing Free Public WiFi to the Linden Neighborhood AEDE 4567 Capstone Final Report Christina Vento, Dustin Kitchen, Eli Collinson Katie Bilinski, and Megan Fuerst Page 2. i i Executive Summary 14 Increased High

High Efficiency Multi-Channel LED Driver IC with Low Current-Balance Error Using Current-Mode Current Regulator
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Abstract This paper presents a multi-channel light-emitting diode (LED) driver IC with a currentmode current regulator. The proposed current regulator replaces resistors for current sensing with a sequentially controlled single current sensor and a single regulation loop for

110V/220V Auto-selection Method for an LED Bulb on Shipboard
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Abstract The strategies of low carbon and green growth have been proposed around the world for the purpose of energy conservation and environment protection. As the latest generation of light source, the light emitting diode (LED) is energy efficient and

Analgesic Effects of the Polarized Red+ Infrared LED Light
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Abstract: INTRODUCTION: Our previous studies have shown that exposure of acupuncture points (AP) or painful area of mice to halogen polarized light (PL) effectively weakens the pain. The aim of the study was to determine whether exposure of AP or painful area to LED

EVALUATION ON HIGH POWER LED WITH Cu-Al2O3 THIN FILM AS THERMAL INTERFACE MATERIAL: THERMAL RESISTANCE AND OPTICAL OUTPUT
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Over the last few decades, lighting emitting diodes (LEDs) have been widely used in numerous applications such as street lighting, traffic signals, advertisement board, automotive and residential lighting as their overall performance was comparable to the

REMOTE CONTROL LED DIMMER USING NRF24L01+ RADIO AND MICROCONTROLLERS
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Abstract: The object of this project is to implement a remote control led dimmer using nrf24L01 radios and microcontrollers. There are four button as inputs: on, off, brighter and dimmer which make the led behave accordingly. The design involves button detection, RF

Street LED Lighting
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Page 1. LED Street Lights Acquisition Projectto April 2017 Prepared by Street Light Team Sharon Boyle Page 2. Overview This presentation will look at:Drivers for LED Street lighting Rate 3 Street lightsNumber 325few are LED Page 6. Next Step on the digital journey Council

LED Lighting for Petro-chemical Industries
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Abstract An Industrial petrochemical facilities have predominantly used high-intensity discharge light sources and installation practices unchanged for several decades. Today, new light emitting diode (LED)-based products are being developed, and there appear to be

Long-term Stability of the Post-Flash LED Lamp
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Abstract We report the results of a study of the long-term stability of the LED lamp used in post-flashing WFC3/UVIS images. We analyze 644 sub-array exposures taken over the course of just over 3 years and find no significant long-term trends in the LED lamp

A SOLAR-POWERED WHITE LED-BASED UV-VIS SPECTROPHOTOMETRIC SYSTEM MANAGED BY PC FOR AIR POLLUTION DETECTION IN FARAWAY
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Abstract This research work regards the design and realization of an absorption spectrophotometer based on a LED light source in place of the usually employed Xenon lamp. The advantage of the use of LED technology resides in several factors such as the

Is Export-Led Growth Hypothesis Exist in Saudi Arabia Evidence from an ARDL Bounds Testing Approach
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ABSTRACT The study investigates the relationship between economic growth, imports and export for Saudi Arabia by using the time series data from 1968-2014. The study employs the recently developed ARDL-bounds testing approach. The estimations of the ARDL-

A Current-Mode Digital Controlled Buck-Boost DC-DC Converter for LED Driver
free download

Abstract-This paper presents a digital LED Driver that provides a high quality of the back light for display modules. The proposed LED driver is implemented in 0.18 um CMOS process. Proposed LED driver consists of three types of circuits, a buckboost converter,

Design and Experiment of Slope-compensated Buck LED Driver
free download

Slope LEDDesign and Experiment of Slope-compensated Buck LED Driver Marn-Go Kim, Young-Seok Jung, and Nam-Ho Kim Pukyong National University A discrete time domain analysis for the slope- compensated buck LED driver is performed

Study on Thermal Analysis for Optimization LED Driver ICs
free download

This research was analyzed thermal characteristics that was appointed disadvantage when smart LED driver ICs was packaged and we applied extracted thermal characteristics for optimal layout design. We confirmed reliability of smart LED driver ICs package without

High Efficiency Multi-Channel LED Driver IC with Low Current-Balance Error Using Current-Mode Current Regulator
free download

Abstract This paper presents a multi-channel light-emitting diode (LED) driver IC with a currentmode current regulator. The proposed current regulator replaces resistors for current sensing with a sequentially controlled single current sensor and a single regulation loop for

A Single-Stage Single-Switch Multiple Output LED Driver Circuit
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A resonant single-stage single-switch eight-output LED driver has increased power factor. The output current of eight LEDs are controlled by controlling one output current which is said to be the passive current balancing technique. When it operates in the critical

Estimation of Non-Reciprocal Behavior and Junction Temperature of an IC LED Driver by Thermal Impedance Matrix Measurement
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Abstract The thermal path behaviour of the electronic device is often characterized by considering the single heat source and single junction to ambient thermal resistance. In case of IC drivers, the heat source within the device is multiple due to many integrated

Analysis and Design Considerations for a High Power Buck Derived LED Driver with Extended Output Voltage and Low Total Harmonic Distortion
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Abstract In order to reduce the cost, improve the efficiency and simplify the complicated control of existing isolated LED drivers, an improved boundary conduction mode (BCM) Buck ac-dc light emitting diode (LED) driver with extended output voltage and low total

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