This document provides an overview of lighting design fundamentals and applications. It discusses basic light concepts including photometric quantities used to measure light, illumination quality, and different types of lamps such as incandescent, fluorescent, and high intensity discharge lamps. It also covers topics such as quantity and quality of light, lighting control systems, and current lighting equipment and practices.
Srishti Sharma,B.Sc-ID+ 2 Year Residential & Commercial Design Diplomadezyneecole
This Project has been Developed by the Student of Dezyne E'cole College Doing Her Interior Design Studies Bachelor Degree Programme + 2Yr Residential & Commercial Design Diploma Programme www.dezyneecole.com
Light is part of the electromagnetic spectrum perceived by human eyes. It is best to provide uniform illumination using both natural and artificial lighting. Lighting quality and quantity should be considered to minimize glare and ensure uniform illuminance over workspaces. A variety of light sources have different characteristics that make some more suitable than others depending on the application.
This document discusses lighting definitions, types of lamps, and lighting design principles. It begins by defining key lighting terms like luminous flux, illuminance, luminous intensity, and color temperature. It then describes various lamp types including incandescent, fluorescent, high intensity discharge lamps, and LEDs. Their characteristics like efficacy, color rendering, and lifetime are compared. The document also covers lighting design considerations like recommended light levels for different tasks and the laws of illumination. Overall it provides a comprehensive overview of lighting fundamentals and design concepts.
The document provides information on lighting design for commercial and residential spaces. It discusses various types of light sources including natural light, incandescent lamps, fluorescent lamps, high intensity discharge lamps, and LEDs. It describes lighting units such as luminaires, luminous flux, illuminance, and luminance. It also covers color temperature, color rendering index, lighting fixtures, wash lights, spot lights, and downlights. The document is a guide for lighting design and selection of appropriate light sources and fixtures for different applications.
- The CIE system provides a numerical specification for color using tristimulus values that represent the amounts of three primary colors (red, blue, and green) needed to match a particular color.
- Factors like the light source, observer, and surface properties affect the perceived color. The CIE system defines standard illuminants, observers, and viewing conditions to account for these factors.
- Tristimulus values along with the CIE system allow colors to be objectively measured and reproduced across different lighting and viewing conditions.
Aashish Jain ,B.Sc-ID+ 2 Year Residential & Commercial Design Diplomadezyneecole
This Project has been Developed by the Student of Dezyne E'cole College Doing His Interior Design Studies Bachelor Degree Programme + 2Yr Residential & Commercial Design Diploma Programme www.dezyneecole.com
This document discusses lighting design for commercial and residential spaces. It covers various topics such as:
1. The different types of light sources including incandescent, fluorescent, halogen, and LED lamps.
2. Factors that influence light quality like color temperature, color rendering index, and lighting fixtures.
3. Classifications of lighting fixtures and the different types of lighting like general, accent, task, and decorative lighting.
4. Detailed information about incandescent lamps, their construction, advantages, disadvantages and types.
This document discusses illumination and lighting design. It begins by outlining the objectives of studying illumination for architects, including providing proper ambient lighting, safety, and energy efficiency. It then defines key lighting terms like illuminance, luminous intensity, and luminance. The document covers the inverse square law and Lambert's cosine law governing light distribution. It describes the history of lighting technologies from candles to modern LEDs. It also discusses light sources like fluorescent lamps and the types of lighting schemes and lamps used in various applications.
Srishti Sharma,B.Sc-ID+ 2 Year Residential & Commercial Design Diplomadezyneecole
This Project has been Developed by the Student of Dezyne E'cole College Doing Her Interior Design Studies Bachelor Degree Programme + 2Yr Residential & Commercial Design Diploma Programme www.dezyneecole.com
Light is part of the electromagnetic spectrum perceived by human eyes. It is best to provide uniform illumination using both natural and artificial lighting. Lighting quality and quantity should be considered to minimize glare and ensure uniform illuminance over workspaces. A variety of light sources have different characteristics that make some more suitable than others depending on the application.
This document discusses lighting definitions, types of lamps, and lighting design principles. It begins by defining key lighting terms like luminous flux, illuminance, luminous intensity, and color temperature. It then describes various lamp types including incandescent, fluorescent, high intensity discharge lamps, and LEDs. Their characteristics like efficacy, color rendering, and lifetime are compared. The document also covers lighting design considerations like recommended light levels for different tasks and the laws of illumination. Overall it provides a comprehensive overview of lighting fundamentals and design concepts.
The document provides information on lighting design for commercial and residential spaces. It discusses various types of light sources including natural light, incandescent lamps, fluorescent lamps, high intensity discharge lamps, and LEDs. It describes lighting units such as luminaires, luminous flux, illuminance, and luminance. It also covers color temperature, color rendering index, lighting fixtures, wash lights, spot lights, and downlights. The document is a guide for lighting design and selection of appropriate light sources and fixtures for different applications.
- The CIE system provides a numerical specification for color using tristimulus values that represent the amounts of three primary colors (red, blue, and green) needed to match a particular color.
- Factors like the light source, observer, and surface properties affect the perceived color. The CIE system defines standard illuminants, observers, and viewing conditions to account for these factors.
- Tristimulus values along with the CIE system allow colors to be objectively measured and reproduced across different lighting and viewing conditions.
Aashish Jain ,B.Sc-ID+ 2 Year Residential & Commercial Design Diplomadezyneecole
This Project has been Developed by the Student of Dezyne E'cole College Doing His Interior Design Studies Bachelor Degree Programme + 2Yr Residential & Commercial Design Diploma Programme www.dezyneecole.com
This document discusses lighting design for commercial and residential spaces. It covers various topics such as:
1. The different types of light sources including incandescent, fluorescent, halogen, and LED lamps.
2. Factors that influence light quality like color temperature, color rendering index, and lighting fixtures.
3. Classifications of lighting fixtures and the different types of lighting like general, accent, task, and decorative lighting.
4. Detailed information about incandescent lamps, their construction, advantages, disadvantages and types.
This document discusses illumination and lighting design. It begins by outlining the objectives of studying illumination for architects, including providing proper ambient lighting, safety, and energy efficiency. It then defines key lighting terms like illuminance, luminous intensity, and luminance. The document covers the inverse square law and Lambert's cosine law governing light distribution. It describes the history of lighting technologies from candles to modern LEDs. It also discusses light sources like fluorescent lamps and the types of lighting schemes and lamps used in various applications.
This document discusses lighting design and different lighting technologies. It begins with an overview of visual tasks and factors affecting them. Then it covers the principles of light, including color theory, luminous flux, illumination levels, and lighting laws. Various lighting sources are described like incandescent, fluorescent, sodium vapor, LED, and OLED. Recommendations are provided for illumination levels in different building types. Modern lighting classifications and applications are also discussed.
This project report summarizes Yash Agarwal's lighting design project for Dezyne E'cole College in Ajmer, India. It discusses the psychological effects of lighting and the use of lighting to establish mood. It covers color temperature, bulb types, lighting distributions, and the use of lighting for ambient, task, and accent purposes. The report aims to demonstrate Yash's learning around lighting design and its application to commercial spaces.
The document discusses various aspects of lighting design including:
- Color temperature is measured in Kelvin and affects the appearance of a room, with higher temperatures appearing whiter and cooler.
- Lighting fixtures (luminaires) come in different types like recessed, ceiling mounted, wall mounted, and portable and are classified based on their form and mounting method.
- Different light sources are discussed like incandescent, fluorescent, LED, and high intensity discharge lamps. Each have their own characteristics in terms of efficiency, lifespan, and light output.
- Factors that influence lighting design include color rendering, finishes, lamp type, and distribution of light. Proper lighting is essential for interior spaces.
Color theory describes how colors are created and relate to each other. There are several color theories including additive, subtractive, and Munsell color theory. The color wheel is used to visualize relationships between primary, secondary, and tertiary colors. Complementary colors sit opposite each other on the wheel while analogous colors are adjacent. Warm colors contain red, orange, or yellow while cool colors contain blue, green, or purple. Sodium vapor and mercury vapor lamps produce light through exciting gases in tubes. Sodium lamps emit primarily yellow light while mercury lamps have better color rendering but contain mercury.
The document provides guidance on landscape lighting design using Louis Poulsen Lighting products. It discusses key principles of lighting function, comfort, and ambience. It covers choosing light fixtures and light sources, and emphasizes selecting options that render natural colors accurately and create a balanced lighting scheme. Designers should consider technical lighting needs as well as the human and atmospheric elements of a project.
This document provides information on lighting design for commercial and residential spaces. It discusses key lighting principles and terms such as foot candles, lux, color temperature, and color rendering index. It also describes different light sources like incandescent lamps, types of lighting fixtures and luminaires, and how to classify luminaires. Recommended light levels for various activities are provided.
The document discusses various types of artificial lighting sources and their properties. It defines key lighting terms like light output, efficacy, illuminance, color temperature and color rendering index. Examples are given comparing the light output, efficacy and applications of different lighting technologies like incandescent, fluorescent, LED, halogen, high pressure sodium and metal halide lamps. Recommended lighting levels for different spaces are also outlined from the Malaysian standard MS 1525.
The document discusses principles of illumination design, including definitions of key terms like luminous flux, solid angle, luminous intensity, and color temperature. It covers factors that affect visual tasks like size, luminance, contrast and glare. Basic definitions are provided for concepts such as candela, utilization factor, depreciation factor, candlepower, and mean horizontal candlepower. The document also discusses the light spectrum, types of lighting (natural vs artificial), light sources, luminous efficiency, and color rendering.
Light, Color and Improved Color Quality Possibilities with LEDCindy Foster-Warthen
This course discusses color science and various lighting technologies, with a focus on LEDs. It covers topics like the nature of light, color perception, color measurement, and how different light sources render colors. The presentation explores challenges in quantifying color quality and discusses how LEDs can meet and exceed expectations for color rendering compared to other light sources. It provides examples of how high-quality color rendering from LEDs can benefit applications and industries.
The document describes the principles and components of flame photometry. Flame photometry measures the intensity of light emitted from metal atoms excited by the heat of a flame. When a solution is sprayed into the flame, the solvent evaporates and the metal atoms are excited and emit light of characteristic wavelengths. A mirror collects the light, which is separated into its wavelengths by a prism or grating. A photodetector measures the light intensities, which correspond to concentrations of metals in the original solution. Common applications include analyzing body fluids, soils, and water.
Lighting terminology and units can be complex, but essentially come down to three main concepts:
1) Luminous flux refers to the total amount of visible light emitted by a source, measured in lumens. 2) Illuminance refers to the amount of light falling on a surface, measured in lux. 3) Luminance refers to the amount of light emitted from or reflected off a surface, measured in candelas per square meter. Understanding these core photometric concepts and the related units like lumens, lux, and candelas is essential for working with lighting.
Technical Report - Lamp Performance vs Colour QualityMartin Jesson
This document analyzes and compares the performance of an incandescent, compact fluorescent, and LED light source using spectroradiometer results. Key findings include:
- The LED light source had the highest efficacy at 59.56 lm/W, followed by the compact fluorescent at 72.85 lm/W. However, the LED output only 673.4 lm compared to 1327.5 lm for the compact fluorescent.
- The incandescent light had a color rendering index (CRI) of 99.9 and R9 value of 100, indicating excellent color rendering. The compact fluorescent had lower values of 79.6 for CRI and 0.6 for R9. Surprisingly, the LED
This document provides information on lighting design and different types of light sources. It discusses key lighting concepts like color temperature, lumens, footcandles and lux. It describes different types of lighting fixtures and luminaires. Common artificial light sources are covered, including incandescent lamps, fluorescent lamps, high intensity discharge lamps, and LEDs. Details are given on incandescent lamp construction and types, as well as tungsten-halogen and low-voltage lamps.
Newton discovered that white light is made up of the visible light spectrum when he passed sunlight through a prism. The colour wheel is used to demonstrate the relationships between primary, secondary, and tertiary colours. Primary colours are red, yellow and blue which can be mixed to create secondary colours of orange, green and purple. Tertiary colours result from mixing a primary and secondary colour adjacent on the wheel.
The document discusses color models and color image processing. It covers the fundamentals of color, visible light spectrum, color characterization in terms of brightness, hue and saturation. Common color models like RGB, CMYK, YCbCr, HSV and HSI are described. The document also discusses color sensors in human eyes, primary and secondary colors, pseudocolor image processing techniques like intensity slicing and intensity to color transformation.
The document discusses three main types of light sources: incandescent lamps, discharge lamps, and solid state lamps. Incandescent lamps produce light through a heated filament, discharge lamps use ionized gas to produce light, and solid state lamps like LEDs use semiconductors. It then provides details on each type of light source and how they produce and emit light differently. It also discusses key characteristics used to describe light sources like spectral power distribution, color rendering index, and correlated color temperature.
The document discusses three main types of light sources: incandescent lamps, discharge lamps, and solid state lamps. Incandescent lamps produce light via a heated filament, discharge lamps use ionized gas, and solid state lamps use LEDs. It then provides details on each type of lamp, including their composition, efficiency, lifespan, and common uses. The document also defines key terms for characterizing light sources: spectral power distribution, color rendering index, and correlated color temperature.
This document discusses lighting design essentials, including types of lamps and basic lighting terminology and calculations. It describes various lamp types like incandescent, halogen, fluorescent, CFL, and LED lamps. It also defines key lighting terms such as luminous flux, luminous efficacy, illuminance, luminance, and utilization factor. Finally, it outlines the basic steps for performing lighting design calculations, which involve selecting a luminaire, determining the required number and spacing of luminaires based on the room's illumination level, area, and reflection coefficients.
This document defines key lighting design terminology including light, luminous intensity, luminous efficacy/efficiency, luminous flux, and luminous efficiency. It explains that light is electromagnetic radiation perceived by human eyes between 380-780 nm wavelengths. Luminous intensity describes the quantity of light radiated in a particular direction and is represented by the luminous intensity distribution curve. Luminous efficacy is the ratio of luminous flux to electrical power consumed and is a measure of a light source's economic efficiency. Luminous flux describes the quantity of light emitted by a source per second, measured in lumens.
The document discusses harmonic distortion in electrical systems. It defines total demand distortion (TDD) as a measure of current distortion and total harmonic voltage distortion (THD) as a measure of voltage distortion. TDD and THD(I) are similar but not equal, with TDD decreasing and THD(I) increasing as load decreases. Harmonic distortion can cause overheating, neutral conductor overloading, protective device tripping, capacitor overstressing, and transformer overloading. Basic mitigation techniques include separating linear and non-linear loads, using special transformer connections, installing line reactors, and increasing the number of rectifier pulses.
This document discusses lighting design and different lighting technologies. It begins with an overview of visual tasks and factors affecting them. Then it covers the principles of light, including color theory, luminous flux, illumination levels, and lighting laws. Various lighting sources are described like incandescent, fluorescent, sodium vapor, LED, and OLED. Recommendations are provided for illumination levels in different building types. Modern lighting classifications and applications are also discussed.
This project report summarizes Yash Agarwal's lighting design project for Dezyne E'cole College in Ajmer, India. It discusses the psychological effects of lighting and the use of lighting to establish mood. It covers color temperature, bulb types, lighting distributions, and the use of lighting for ambient, task, and accent purposes. The report aims to demonstrate Yash's learning around lighting design and its application to commercial spaces.
The document discusses various aspects of lighting design including:
- Color temperature is measured in Kelvin and affects the appearance of a room, with higher temperatures appearing whiter and cooler.
- Lighting fixtures (luminaires) come in different types like recessed, ceiling mounted, wall mounted, and portable and are classified based on their form and mounting method.
- Different light sources are discussed like incandescent, fluorescent, LED, and high intensity discharge lamps. Each have their own characteristics in terms of efficiency, lifespan, and light output.
- Factors that influence lighting design include color rendering, finishes, lamp type, and distribution of light. Proper lighting is essential for interior spaces.
Color theory describes how colors are created and relate to each other. There are several color theories including additive, subtractive, and Munsell color theory. The color wheel is used to visualize relationships between primary, secondary, and tertiary colors. Complementary colors sit opposite each other on the wheel while analogous colors are adjacent. Warm colors contain red, orange, or yellow while cool colors contain blue, green, or purple. Sodium vapor and mercury vapor lamps produce light through exciting gases in tubes. Sodium lamps emit primarily yellow light while mercury lamps have better color rendering but contain mercury.
The document provides guidance on landscape lighting design using Louis Poulsen Lighting products. It discusses key principles of lighting function, comfort, and ambience. It covers choosing light fixtures and light sources, and emphasizes selecting options that render natural colors accurately and create a balanced lighting scheme. Designers should consider technical lighting needs as well as the human and atmospheric elements of a project.
This document provides information on lighting design for commercial and residential spaces. It discusses key lighting principles and terms such as foot candles, lux, color temperature, and color rendering index. It also describes different light sources like incandescent lamps, types of lighting fixtures and luminaires, and how to classify luminaires. Recommended light levels for various activities are provided.
The document discusses various types of artificial lighting sources and their properties. It defines key lighting terms like light output, efficacy, illuminance, color temperature and color rendering index. Examples are given comparing the light output, efficacy and applications of different lighting technologies like incandescent, fluorescent, LED, halogen, high pressure sodium and metal halide lamps. Recommended lighting levels for different spaces are also outlined from the Malaysian standard MS 1525.
The document discusses principles of illumination design, including definitions of key terms like luminous flux, solid angle, luminous intensity, and color temperature. It covers factors that affect visual tasks like size, luminance, contrast and glare. Basic definitions are provided for concepts such as candela, utilization factor, depreciation factor, candlepower, and mean horizontal candlepower. The document also discusses the light spectrum, types of lighting (natural vs artificial), light sources, luminous efficiency, and color rendering.
Light, Color and Improved Color Quality Possibilities with LEDCindy Foster-Warthen
This course discusses color science and various lighting technologies, with a focus on LEDs. It covers topics like the nature of light, color perception, color measurement, and how different light sources render colors. The presentation explores challenges in quantifying color quality and discusses how LEDs can meet and exceed expectations for color rendering compared to other light sources. It provides examples of how high-quality color rendering from LEDs can benefit applications and industries.
The document describes the principles and components of flame photometry. Flame photometry measures the intensity of light emitted from metal atoms excited by the heat of a flame. When a solution is sprayed into the flame, the solvent evaporates and the metal atoms are excited and emit light of characteristic wavelengths. A mirror collects the light, which is separated into its wavelengths by a prism or grating. A photodetector measures the light intensities, which correspond to concentrations of metals in the original solution. Common applications include analyzing body fluids, soils, and water.
Lighting terminology and units can be complex, but essentially come down to three main concepts:
1) Luminous flux refers to the total amount of visible light emitted by a source, measured in lumens. 2) Illuminance refers to the amount of light falling on a surface, measured in lux. 3) Luminance refers to the amount of light emitted from or reflected off a surface, measured in candelas per square meter. Understanding these core photometric concepts and the related units like lumens, lux, and candelas is essential for working with lighting.
Technical Report - Lamp Performance vs Colour QualityMartin Jesson
This document analyzes and compares the performance of an incandescent, compact fluorescent, and LED light source using spectroradiometer results. Key findings include:
- The LED light source had the highest efficacy at 59.56 lm/W, followed by the compact fluorescent at 72.85 lm/W. However, the LED output only 673.4 lm compared to 1327.5 lm for the compact fluorescent.
- The incandescent light had a color rendering index (CRI) of 99.9 and R9 value of 100, indicating excellent color rendering. The compact fluorescent had lower values of 79.6 for CRI and 0.6 for R9. Surprisingly, the LED
This document provides information on lighting design and different types of light sources. It discusses key lighting concepts like color temperature, lumens, footcandles and lux. It describes different types of lighting fixtures and luminaires. Common artificial light sources are covered, including incandescent lamps, fluorescent lamps, high intensity discharge lamps, and LEDs. Details are given on incandescent lamp construction and types, as well as tungsten-halogen and low-voltage lamps.
Newton discovered that white light is made up of the visible light spectrum when he passed sunlight through a prism. The colour wheel is used to demonstrate the relationships between primary, secondary, and tertiary colours. Primary colours are red, yellow and blue which can be mixed to create secondary colours of orange, green and purple. Tertiary colours result from mixing a primary and secondary colour adjacent on the wheel.
The document discusses color models and color image processing. It covers the fundamentals of color, visible light spectrum, color characterization in terms of brightness, hue and saturation. Common color models like RGB, CMYK, YCbCr, HSV and HSI are described. The document also discusses color sensors in human eyes, primary and secondary colors, pseudocolor image processing techniques like intensity slicing and intensity to color transformation.
The document discusses three main types of light sources: incandescent lamps, discharge lamps, and solid state lamps. Incandescent lamps produce light through a heated filament, discharge lamps use ionized gas to produce light, and solid state lamps like LEDs use semiconductors. It then provides details on each type of light source and how they produce and emit light differently. It also discusses key characteristics used to describe light sources like spectral power distribution, color rendering index, and correlated color temperature.
The document discusses three main types of light sources: incandescent lamps, discharge lamps, and solid state lamps. Incandescent lamps produce light via a heated filament, discharge lamps use ionized gas, and solid state lamps use LEDs. It then provides details on each type of lamp, including their composition, efficiency, lifespan, and common uses. The document also defines key terms for characterizing light sources: spectral power distribution, color rendering index, and correlated color temperature.
This document discusses lighting design essentials, including types of lamps and basic lighting terminology and calculations. It describes various lamp types like incandescent, halogen, fluorescent, CFL, and LED lamps. It also defines key lighting terms such as luminous flux, luminous efficacy, illuminance, luminance, and utilization factor. Finally, it outlines the basic steps for performing lighting design calculations, which involve selecting a luminaire, determining the required number and spacing of luminaires based on the room's illumination level, area, and reflection coefficients.
This document defines key lighting design terminology including light, luminous intensity, luminous efficacy/efficiency, luminous flux, and luminous efficiency. It explains that light is electromagnetic radiation perceived by human eyes between 380-780 nm wavelengths. Luminous intensity describes the quantity of light radiated in a particular direction and is represented by the luminous intensity distribution curve. Luminous efficacy is the ratio of luminous flux to electrical power consumed and is a measure of a light source's economic efficiency. Luminous flux describes the quantity of light emitted by a source per second, measured in lumens.
The document discusses harmonic distortion in electrical systems. It defines total demand distortion (TDD) as a measure of current distortion and total harmonic voltage distortion (THD) as a measure of voltage distortion. TDD and THD(I) are similar but not equal, with TDD decreasing and THD(I) increasing as load decreases. Harmonic distortion can cause overheating, neutral conductor overloading, protective device tripping, capacitor overstressing, and transformer overloading. Basic mitigation techniques include separating linear and non-linear loads, using special transformer connections, installing line reactors, and increasing the number of rectifier pulses.
The document discusses the revolution of LED technology in the lighting industry. It states that LED technology will enable new lighting design possibilities and applications. It will fundamentally change the lighting industry by creating a system replacement business rather than a lamp replacement one, challenging existing players and allowing new entrants. LEDs will disrupt the industry like digital recording disrupted the music industry.
The document discusses the revolution of LED technology in the lighting industry. It states that LED technology will enable new lighting design possibilities and applications. It will fundamentally change the lighting industry by creating a system replacement business rather than a lamp replacement one, challenging existing players and allowing new entrants. LEDs will disrupt the industry like digital recording disrupted the music industry.
This document provides an overview of key concepts related to light and illumination. It begins with definitions of light as electromagnetic radiation capable of affecting sight. It then discusses the wavelength and frequency of light, the visible light spectrum, and properties of light like reflection and refraction. The nature of light as both a wave and particle is explained. Concepts like photons, light rays, and shadows are introduced. The document also covers the luminous flux, luminous intensity, and other units used to measure light, including lumens and candelas. Examples problems demonstrate applying concepts like calculating shadow sizes and luminous intensity.
The document discusses the design of lighting, HVAC, and plumbing systems for high-performance buildings, noting that lighting systems account for a large portion of energy use in commercial buildings and impact cooling loads. It provides guidance on designing efficient ambient, task, accent, and safety lighting systems that integrate with daylighting and occupancy sensors to reduce energy use. The document also discusses HVAC system design and the importance of coordinating it with the building envelope design to minimize heating and cooling loads.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMSIJNSA Journal
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
2. BASIC CONCEPTS/ PROPERTIES OF LIGHT.
PHOTOMETRIC QUANTITIES: MEASURING LIGHT.
ILLUMINATION QUALITY.
LAMPS: INCANDESCENT, FLOURESCENT …..
LUMINAIRES.
QUANTITY AND QUALITY OF LIGHT.
LIGHTING CONTROL SYSTEMS.
CURRENT STATE OF ART EUIPMENTS AND PRACTICES.
3. INTRODUCTION:
WHAT IS LIGHT:
• WHAT WE PERCEIVE AS LIGHT IS A NARROW WAVELENGTH
BAND OF ELECTROMAGNETIC RADIATION FROM 380 TO 780 nm.
4. • THIS ENERGY RADIATION SHOWS DUAL CHARACTERISTICS: IT
CONSISTS OF ENERGY PARTICLES PHOTONS BUT ALSO SHOWS
TRANSVERERSE WAVE MOTION.
• THE WAVELENGTH DETERMINES ITS COLOUR.
• THE HUMAN’S EYE SENSITIVITY VARIES WITH WAVELENGHT , IT
IS GREATEST AROUND 550 nm (YELLOW).
5. TRANSMISSION:
• MATERIALS W.R.T LIGHT CAN BE REFFERED TO AS :
TRANSPARENT, OPAQUE AND TRANSLUCENT.
• LIGHT INCIDENT ON A SURFACE IS DISTRIBUTED IN
THREE WAYS : REFLECTED, ABSORBED AND
TRANSMITTED.
• SOME IMPORTANT PROPERTIES OF THE OBJECT ARE
DESCRIBED BY : REFLECTANCE-R, ABSORBANCE-A AND
TRANSMITTANCE-T
IN ALL CAES R+A+T=1.
6. PHOTOMETRIC QUANTITIES:
Basic parameters used in lighting
Luminous flux – Luminous intensity – Illuminance – Luminance.
The intensity of light source is
measured in units of candella
(CD.), defined as intensity of 1/60
sq. cm. sphere of a black body at
melting pt. temp.of platinum.
7. Luminous flux:
Measured in lumens (lm.)
One lumen is flow of light emitted by
a unit intensity point source, within
unit solid angle.
As sphere subtends 4∏ (12.56) at its
centre , I cd. Source emits 12.56 lm.
In all directions.
illumination:
Amount of lux falling on unit area
lm/m2 which is lux.
8. Luminance:
The luminance is the only
basic lighting parameter that
is perceived by the eye.
It specifies the brightness of
a surface and is essentially
dependent on its reflectance
(finish and colour).
10. Colour:
• Colour is the way we distinguish different wavelengths of light.
• It involves both the spectral characteristics of the light itself, the spectral
reflectance of the illuminated surface as well as the perception of the
observer.
• The colour of a light source depends on the spectral composition of the
light emitted by it.
• The apparent colour of a light reflecting surface, on the other hand, is
determined by two characteristics: the spectral composition of the light by
which it is illuminated, and the spectral reflectance characteristics of the
surface.
• A coloured surface is coloured because it reflects wavelengths selectively.
The spectral reflectance of red paint, for example, shows that it reflects a high
percentage of the red wavelengths and little or none of the blue end of the
spectrum.
11. • But an object painted red can only appear red if the light falling on it contains
sufficient red radiation, so that this can be reflected. Moreover, it will appear dark
when illuminated with a light source having no red radiation.
Mixing light of different colours
• When coloured light beams are mixed,
the result will always be brighter than the
individual
colours, and if the right colours are mixed
in the right intensities, the result will be
white light.
• This is known as additive colour
mixing. The three basic light colours are
red, green and violet-blue.
• These are called the primary colours and
additive mixing of these colours will
produce all other light colours, including
white.
12. Subtractive colour mixing:
• Subtractive colour mixing occurs for
example when coloured paints are
mixed on a palette.
yellow + magenta = red
yellow + cyan = green
magenta + cyan = violet-blue
but
yellow + magenta + cyan = black
13. CIE chromaticity diagram:
• A graphic representation of the range of
light colours visible to the human eye is
given by the CIE* chromaticity diagram.
• The saturated colours red, green and
violet are located at the corners of the
triangle with intermediate spectral colours
along the sloping sides, and magenta at
the bottom.
• Going inwards, they become lighter and
diluted at the same time.
• The centre of the triangle -where all
colours meet- is white.
• The colour values are numerically plotted
along the right-angled x- and y-axis.Thus,
each light colour can be defined by its x-
and y-values, which are called chromaticity
coordinates, or colour point.
14. Colour rendering:
•Although light sources may have the same colour appearance, this
doesn’t necessarily mean that coloured surfaces will look the same under
them.
•Two lights that appear the same white, may be the result of different
blends of wavelengths.
15. •Colour rendering is an important aspect
of artificial lighting. In some situations
colours should be represented as
naturally as possible as under daylight
conditions, yet in other cases lighting
should highlight individual colours or
create a specific ambience.
•To classify light sources on their colour
rendering properties the so called
colour rendering index (CRI or also
denoted as Ra) has been introduced.
16. •The light reflected from the rocking
horse enters the eye of the observer
forming in his brain an image as
depicted in the top right corner. In the
bottom picture the light falling on the
horse has no red radiation.
•This means that no light will
be reflected from the red parts of the
rocking horse and these parts will
appear dark to an observer as can be
seen.
•Both pictures indicate that the
spectrum of the light source plays an
important role in the way we perceive
the colour of objects.
17. •The general colour rendering index Ra,
derived from a set of eight test colours
taken from everyday live, is used to
evaluate the colour rendering
characteristics of a lamp. Its theoretical
•maximum value is 100.
•The lower the colour rendering index the
worse the colour rendering characteristics
of the lamp.
•For practical purposes the colour
rendering indices are divided into different
levels. DIN EN 12464-1 states six of these
levels
18. Colour temperature:
•Described as the colour impression of a perfect black-body radiator at certain
temperatures.
•This concept can be best explained with the help of familiar thermal radiators like
the filament of an incandescent lamp or an iron bar.
•When these materials are heated to a temperature of 1000 K their colour
appearance will be red, at 2000-3000 K they will look yellow white, at 4000 K
neutral white, and at 5000-7000 K cool white. In other words: the higher the colour
temperature, the cooler the impression of the white light becomes.
19. Colour temperature is an important aspect in lighting applications – the choice of
colour temperature being determined by the following factors:
• Ambience: warm-white creates a cosy, inviting ambience; neutral/ cool-white
creates a business-like ambience.
• Climate: inhabitants of cooler geographical regions generally prefer a warmer
light, whilst inhabitants of (sub)-tropical areas prefer, in general, a cooler light.
• Level of illumination needed. Intuitively, we take daylight as a natural reference.
A warm-white light is daylight at the end of the day, at a lower lighting level. Cool-
white light is daylight during the middle part of day. This means that in
interior lighting, low illumination levels should be achieved with warm-white light.
When a very high lighting level is needed, this should be realised with a neutral or
cool white light.
• Colour scheme in an interior. Colours like red and orange are shown to
advantage with a warm-white light, cool colours like blue and green look somewhat
more saturated under a cool-white light.
20. All lamps with a most similar colour
temperature of over 5300 K belong to the
group of daylight white (tw) light sources,
like e.g. daylight white luorescent lamps.
High pressure mercury lamps and “white”
luorescent lamps belong to the group of
lamps with neutral white (nw) light colours
with colour temperatures between 3300 K
and 5300 K.
Incandescent lamps and “warm tint”
fluorescent lamps belong to the group
of lamps with warm white (ww) light colours
with a colour temperature under 3300 K.
21. Incandescent Lamps:
One of the oldest electric lighting
technologies.
Light is produced by passing a current
through a tungsten filament.
Least efficient – (4 to 24 lumens/watt).
Lamp life ~ 1,000 hours.
Tugnsten-Halogen Lamps:
A type of incandescent lamp.
Encloses the tungsten filament in a
quartz capsule filled with halogen gas.
Halogen gas combines with the
vaporized tungsten and redeposits it
on the filament.
More efficient.
Lasts longer (up to 6,000 hrs.)
22. High Intensity Discharge (HID) Lamps:
produces light by means of an
electric arc between tungsten
electrodes housed inside a
translucent or transparent fused
quartz or fused alumina (ceramic)
arc tube filled with special gases.
Arc tube can be filled by various types of
gases and metal salts.
HID lamps are used in industrial high bay
applications, gymnasiums, outdoor lighting,
parking decks, street lights.
Efficient (up to 150 lumens/watt).
Long Life (up to 25,000 hours).
Drawback – take up to 15 minutes to come
up to full light after power outage.
23. Types of HIDs
Mercury Vapor (obsolete)
Sodium Vapor
High pressure
Low pressure
Metal Halide
Arc tube contains argon,
mercury, and metal halides.
Gives better color temperature
and CRI.
24. Most common HID in use today.
Recent Improvements.
Allow higher pressure &
temperature.
Better efficiency, better CRI and
better lumen maintenance.
Pulse Start vs. older Probe Start
Ceramic vs. older Quartz arc tube
25. Fluorescent Lamps
Most common commercial lighting
technology.
High Efficicacy: up to 100 lumens/watt.
Improvements made in the last 15 years.
T12: 1.5 inch in diameter.
T8: 1 inch in diameter.
~30% more efficient than T12.
T5: 5/8 inch in diameter.
~40% more efficient than T12.
Configurations
Linear (8 ft., 4 ft., 2 ft., 1 ft.)
Ubend (fit in a 2 ft. x 2 ft. fixture).
Circular (rare, obsolete).
Fixtures can be 4, 3, 2, or 1 lamp per
fixture.
Output Categories
Standard Output (430 mA).
High Output (800 mA).
Very High Output (1,500 mA).
Phosphor crystals Mercury atom Electron Electrode
26. Compact Fluorescent Lamps (CFLs)
Fluorescent lamp that is small in size (~2
in. diameter, 3 to 5 in. in length).
Developed as replacement for
incandescent lamps.
Two Main Types
Ballast-integrated.
Ballast non-integrated (allows only
lamp to be replaced).
27. •Excellent color available – comparable to
incandescent
•Many choices (sizes, shapes, wattages,
output, etc.)
•Wide Range of CRI and Color
Temperatures
•Energy Efficient (3.5 to 4 times
incandescent)
•Long Life (generally 10,000 hours –
lasts 12 times longer than standard 750
hour incandescent lamps)
•Less expensive dimming now available (0-
10v dimming to 5%)
•Available for outdoor use with amalgam
technology
28. Ballasts
Auxiliary component that performs 3
functions:
Provides higher starting voltage.
Provides operating voltage.
Limits operating current.
Old type ballasts were
electromagnetic.
New ballasts are electronic.
Lighter, less noisy, no lamp flicker,
dimming capability).
29. •DEFINITION: The fraction of rated lamp lumens produced by a specific
lamp-ballast combination
•APPLICATIONS: High Ballast Factor Increases output
(1.00-1.30) AND energy
consumption
Typical Ballast Factor Comparable light output in
(0.85-0.95) one-to-one replacement
Low Ballast Factor Decreases light output
(0.47-0.83) AND energy consumption
•For optimal efficiency lamps and ballasts must be properly matched.
•Maximize energy savings by selecting electronic ballasts with ballast
factor that provides target illuminance.
30. Ballast Circuit Types
Instant Start Ballast – starts lamp instantly with higher starting
voltage. Efficient but may shorten lamp life.
Rapid Start – delay of about 0.5 seconds to start; supplies starting
current to heat the filament prior to starting and continues during
operation. Uses 2 to 4 watts more than an instant start ballast.
Programmed Rapid Start - delay of about 0.5 seconds to start;
starting current heats the filament prior to starting, then cuts off
during operation.
31. Light Emitting Diodes (LED):
Latest Lighting Technology.
Invented in 1962.
In the past, used as indicator lights,
automotive lights, and traffic lights; now
being introduced for indoor and outdoor
lighting.
LED is a semiconductor technology.
Electroluminescence. Electrons recombine
with holes in the semiconductor, releasing
photons.
Lower energy consumption.
Longer lifetime (50,000 to 100,000 hrs).
Smaller size.
Faster switching.
Greater durability and reliability.
Cycling.
Dimming
32. Comparison of LED with a Fluorescent Lamp:
EverLED-TR
Popular T8 Brand
Fluorescent
Watt Rating, typical B.F. = 0.8 22W 34W
Lumens, initial Equivalent 2850
CRI 85 85
Color Temperature 5000K 5000K
Life Expectancy 12 hrs per
start / 3 hrs per start
10 years 10
years
20000 hours 16000
hours
Light output at 0° C 20% increase 50% decrease