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Journal articles on the topic 'Daylight metric'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Dogan, T., and YC Park. "Testing the residential daylight score: Comparing climate-based daylighting metrics for 2444 individual dwelling units in temperate climates." Lighting Research & Technology 52, no. 8 (2020): 991–1008. http://dx.doi.org/10.1177/1477153520924838.

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Evaluation metrics using climate-based daylight modelling paradigms have become the de-facto standard in work environments but have only limited applicability in residential architecture. Qualities of daylight cited in the architectural design literature, such as daily and seasonal availability of daylight as well as access to direct sunlight, are simulated in detail but are usually overlooked in the commonly used evaluation metrics. In a recent paper, a new climate-based, annual daylight evaluation framework called the residential daylight score has been proposed for cold and temperate climat

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2

Gábrová, Lenka. "Comparison between Dynamic and Static Metrics for Daylight Evaluation in the Case of Obstructed Buildings." Applied Mechanics and Materials 861 (December 2016): 477–84. http://dx.doi.org/10.4028/www.scientific.net/amm.861.477.

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Daylight in buildings can be evaluated using dynamic and static daylight metrics. The daylight factor is a static daylight metric which evaluates daylight conditions under the overcast sky model according to the International Commission on Illumination. However, the dynamic daylight metrics (e.g. daylight autonomy, spatial daylight autonomy, useful daylight illuminance) can be more complex evaluation criteria because they are based on annual daylight illuminance data for a building site. While the daylight factor value depends only on a room geometry, optical properties of surfaces and positio

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Lee, Jaewook, and Mohamed Boubekri. "INTRODUCTION OF NEW DAYLIGHTING METRICS FOR HEALTH, WELLBEING, AND FEASIBILITY: A STUDY OF THE INDOOR BUILDING ENVIRONMENT." Journal of Green Building 17, no. 1 (2022): 105–26. http://dx.doi.org/10.3992/1943-4618.17.1.105.

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ABSTRACT This study investigates the applicability of a new daylighting metric based on human health, an emerging framework for evaluating the effect of daylight on building occupants. Procedures based on modeling annual daylight availability are used to determine the mapping of daylight distribution on a daily, seasonal, and yearly basis. Literature review and experimental studies were performed to propose the new day-lighting metrics for health and wellbeing. The proposed metrics have two broad criteria, including daylighting level, timing, and duration. The two details are as follows: (1) 4

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Lee, Jaewook, and Mohamed Boubekri. "INTRODUCTION OF NEW DAYLIGHTING METRICS FOR HEALTH, WELLBEING, AND FEASIBILITY: A STUDY OF THE INDOOR BUILDING ENVIRONMENT." Journal of Green Building 17, no. 1 (2022): 105–26. http://dx.doi.org/10.3992/jgb.17.1.105.

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ABSTRACT This study investigates the applicability of a new daylighting metric based on human health, an emerging framework for evaluating the effect of daylight on building occupants. Procedures based on modeling annual daylight availability are used to determine the mapping of daylight distribution on a daily, seasonal, and yearly basis. Literature review and experimental studies were performed to propose the new day-lighting metrics for health and wellbeing. The proposed metrics have two broad criteria, including daylighting level, timing, and duration. The two details are as follows: (1) 4

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Keskin, Zeynep, Yunhao Chen, and Steve Fotios. "Daylight And Seating Preference In Open-Plan Library Spaces." International Journal of Sustainable Lighting 17 (June 2, 2017): 12–20. http://dx.doi.org/10.26607/ijsl.v17i0.12.

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Daylight factor has long been the predominant metric to evaluate daylight performance. Recently, the profession has moved toward annual dynamic daylight metrics such as useful daylight illuminance and daylight autonomy, which are based on absolute values of time varying daylight illuminance for a period of full year. As opposed to static daylight metrics that only concentrate on individual sky conditions, such as the widely used daylight factor, these metrics provide a more comprehensive way to measure illuminance for a wide range of sun positions and sky conditions. Although there is a growin

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Boubekri, Mohamed, and Jaewook Lee. "A COMPARISON OF FOUR DAYLIGHTING METRICS IN ASSESSING THE DAYLIGHTING PERFORMANCE OF THREE SHADING SYSTEMS." Journal of Green Building 12, no. 3 (2017): 39–53. http://dx.doi.org/10.3992/1943-4618.12.3.39.

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The assessment of the daylighting performance of a design solution is a complex task due to the changing nature of daylight. A few quantitative metrics are available to designers to assess such a performance, among them are the mean hourly illuminance (MHI), the daylight factor (DF), the daylight autonomy (DA) and the useful daylight illuminance (UDI). Each of these metrics has a purpose, a set of criteria and limitations that affect the outcome of the evaluation. When to use one metric instead of another depends largely on the design goals to be achieved. Using Design Iterate Validate Adapt (

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Ruiz, Alejandro, Miguel Ángel Campano, Ignacio Acosta, and Óscar Luque. "Partial Daylight Autonomy (DAp): A New Lighting Dynamic Metric to Optimize the Design of Windows for Seasonal Use Spaces." Applied Sciences 11, no. 17 (2021): 8228. http://dx.doi.org/10.3390/app11178228.

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Nowadays, daylight dynamic metrics are the most useful indicators to quantify the use of natural light, with daylight autonomy (DA) being one of the most widespread among all of them. This metric represents the percentage of the occupied time throughout the year in an indoor space when daylight reaches the minimum illuminance level to develop a specific task. Accordingly, the higher the percentage of DA, the shorter the switching on time of electric lighting. However, this metric considers for its calculations all business days of a whole standard year, and is thus not an accurate indicator fo

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Dogan, T., and YC Park. "A critical review of daylighting metrics for residential architecture and a new metric for cold and temperate climates." Lighting Research & Technology 51, no. 2 (2018): 206–30. http://dx.doi.org/10.1177/1477153518755561.

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Residential architecture constitutes one of the largest market segments in the construction sector. However, the attention that it is given in the field of daylight performance simulation is surprisingly low. This poses the question of whether existing daylighting metrics are well suited for residential design. Findings from 79 references are summarized, and a critical review of current climate-based daylighting metrics in the context of residential architecture is provided. It is found that existing workflows often overlook relevant aspects of daylight in residential spaces, such as diurnal a

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Wienold, J., T. Iwata, M. Sarey Khanie, et al. "Cross-validation and robustness of daylight glare metrics." Lighting Research & Technology 51, no. 7 (2019): 983–1013. http://dx.doi.org/10.1177/1477153519826003.

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This study evaluates the performance and robustness of 22 established and newly proposed glare prediction metrics. Experimental datasets of daylight-dominated workplaces in office-like test rooms were collected from studies by seven research groups in six different locations (Argentina, Denmark, Germany, Israel, Japan and the United States). The variability in experimental setups, locations and research teams allowed reliable evaluation of the performance and robustness of glare metrics for daylight-dominated workplaces. Independent statistical methods were applied to individual datasets and a

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García-Martín, Guillermo, Miguel Ángel Campano, Ignacio Acosta, and Pedro Bustamante. "New Approaches in Dynamic Metrics for Lighting Control Systems: A Critical Review." Applied Sciences 15, no. 15 (2025): 8243. https://doi.org/10.3390/app15158243.

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The growing number of daylighting metrics—often overlapping in scope or terminology—combined with the need for prior familiarization to interpret and apply them effectively, has created a barrier to their adoption beyond academic settings. Consequently, this study analyzes a representative set of established and emerging daylighting metrics to evaluate applicability, synergies, and limitations. Particular attention is given to their implications for occupant health, well-being, performance, and energy use, especially within the context of sensorless smart control systems. A virtual room model

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Hraška, Jozef. "Nonvisual aspects of daylight in the built environment." IOP Conference Series: Materials Science and Engineering 1252, no. 1 (2022): 012063. http://dx.doi.org/10.1088/1757-899x/1252/1/012063.

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Abstract This paper investigates melanopic equivalent daylight vertical and horizontal illuminances within an indoor space as a metric for the nonvisual effects of its lighting. The article is based on the findings of photobiological research and the recommendations of several institutions for the threshold values of melanopic illuminance at the eyes of users of indoor spaces, which is sufficient for the proper functioning of the circadian system. This study uses a computer workplace as an environment to investigate experimentally the applicability of melanopic daylight metrics for the practic

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Ershov, Sergey, Vadim Sokolov, Vladimir Galaktionov, and Alexey Voloboy. "Virtual Light Sensing Technology for Fast Calculation of Daylight Autonomy Metrics." Sensors 23, no. 4 (2023): 2255. http://dx.doi.org/10.3390/s23042255.

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Virtual sensing technology uses mathematical calculations instead of natural measurements when the latter are too difficult or expensive. Nowadays, application of virtual light sensing technology becomes almost mandatory for daylight analysis at the stage of architectural project development. Daylight Autonomy metrics should be calculated multiple times during the project. A properly designed building can reduce the necessity of artificial lighting, thus saving energy. There are two main daylight performance metrics: Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE). To obtain

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Czachura, Agnieszka, Niko Gentile, Jouri Kanters, and Maria Wall. "Identifying Potential Indicators of Neighbourhood Solar Access in Urban Planning." Buildings 12, no. 10 (2022): 1575. http://dx.doi.org/10.3390/buildings12101575.

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Solar access describes the capacity of urban spaces to receive sunlight and daylight. Rapid urbanization and unbridled densification pose a threat to sustainable solar access, reducing the penetration of sunlight and daylight into cities. To effectively assess solar access at such an early design stage, at the urban planning level, it is critical that evaluation metrics are simple and reliable. This paper examines a cross section of solar metrics, from simple to more complex ones, to find potential solar performance indicators for urban planning evaluations. The metric datasets were created ba

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Atthaillah, Atthaillah, and Andik Bintoro. "USEFUL DAYLIGHT ILLUMINANCE (UDI) PADA RUANG BELAJAR SEKOLAH DASAR DI KAWASAN URBAN PADAT TROPIS (STUDI KASUS: SD NEGERI 2 DAN 6 BANDA SAKTI, LHOKSEUMAWE, ACEH, INDONESIA)." LANGKAU BETANG: JURNAL ARSITEKTUR 6, no. 2 (2019): 72. http://dx.doi.org/10.26418/lantang.v6i2.33940.

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Studi ini melakukan evaluasi pencahayaan alami pada ruang belajar Sekolah Dasar Negeri 2 dan 6 Banda Sakti, Lhokseumawe. Sekolah tersebut berada pada lokasi urban padat dan merupakan sekolah dengan bangunan terluas di kecamatan Banda Sakti. Ada 36 (tiga puluh enam) ruang kelas yang dilakukan simulasi pencahayaan alami pada objek studi ini. Simulasi pencahayaan alami dilakukan dengan metrik useful daylight illuminance (UDI). Metrik ini menggunakan data cuaca lokasi objek penelitian dalam hal ini data cuaca Kota Lhokseumawe dalam format energyplus weather (EPW) file. Pemodelan untuk simulasi dil

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Nourkojouri, Hanieh, Nastaran Seyed Shafavi, Mohammad Tahsildoost, and Zahra Sadat Zomorodian. "Development of a Machine-Learning Framework for Overall Daylight and Visual Comfort Assessment in Early Design Stages." Journal of Daylighting 8, no. 2 (2021): 270–83. http://dx.doi.org/10.15627/jd.2021.21.

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Application of machine learning methods as an alternative for building simulation software has been progressive in recent years. This research is mainly focused on the assessment of machine learning algorithms in prediction of daylight and visual comfort metrics in the early design stages and providing a framework for the required analyses. A dataset was primarily derived from 2880 simulations developed from Honeybee for Grasshopper. The simulations were conducted for a side-lit shoebox model. The alternatives emerged from different physical features, including room dimensions, interior surfac

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Pinem, Leo Sani Muslim, Atthaillah Atthaillah, Effan Fahrizal, Eri Saputra, and Badriana Badriana. "SIMULASI PENCAHAYAAN ALAMI SIANG HARI TERHADAP DESAIN FASAD (STUDI KASUS: GEDUNG LABORATORIUM TEKNIK ELEKTRO UNIVERSITAS MALIKUSSALEH)." Nature: National Academic Journal of Architecture 9, no. 1 (2022): 71–82. http://dx.doi.org/10.24252/nature.v9i1a6.

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Abstrak_ Pencahayaan Alami Siang Hari (PASH) perlu diterapkan pada bangunan sebagai langkah awal penghematan energi pada bangunan dan peningkatan kinerja pengguna. Untuk mencapai PASH yang baik perlu dihadirkan desain fasad yang dapat mengoptimasi PASH. Penelitian ini dilakukan pada Gedung Laboratorium Fakultas Teknik Universitas Malikussaleh, Lhokseumawe, Indonesia. . Selanjutnya, studi ini mengadopsi Climate Based Daylight Modeling (CBDM) dengan metrik Useful Daylight Illuminance (UDI) sebagai kriteria PASH. Metrik PASH tersebut hanya efisien dan akurat dilakukan dengan metode simulasi kompu

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Hosseini, Seyed Morteza, Fodil Fadli, and Masi Mohammadi. "Biomimetic Kinetic Shading Facade Inspired by Tree Morphology for Improving Occupant’s Daylight Performance." Journal of Daylighting 8, no. 1 (2021): 65–85. http://dx.doi.org/10.15627/jd.2021.5.

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Many recent studies in the field of the kinetic façade developed the grid-based modular forms through primary kinetic movements which are restricted in the simple shapes. However, learning from biological analogies reveals that plants and trees provide adjustable daylighting strategies by means of multilayered and curvature morphological changes. This research builds on a relevant literature study, observation, biomimicry morphological approach (top-down), and parametric daylighting simulation to develop a multilayered biomimetic kinetic façade form, inspired by tree morphology to improve occu

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Arango-Díaz, Lucas, Maria Alejandra Garavito-Posada, Juan Sebastian Calle-Medina, Adriana Marcela Murcia-Cardona, Olga Lucia Montoya-Flórez, and Sebastián Pinto-Quintero. "Suficiencia lumínica de ambientes interiores en escenarios de cambio climático." Revista Hábitat Sustentable 12, no. 2 (2022): 40–51. http://dx.doi.org/10.22320/07190700.2022.12.02.03.

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The bioclimatic performance of buildings under climate change scenarios has been extensively studied from a thermo-energy perspective but hardly studied at all from the perspective of indoor daylight sufficiency. This shortcoming is related to the invariability of radiation data in the available weather files of future scenarios. This research proposes identifying the impacts that the variability of radiation data in weather files of future scenarios would have on daylight sufficiency in indoor spaces. The methodology includes the adaptation of available weather files and the running of daylig

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Eriksson, Sara, Lovisa Waldenström, Max Tillberg, Magnus Österbring, and Angela Sasic Kalagasidis. "Numerical Simulations and Empirical Data for the Evaluation of Daylight Factors in Existing Buildings in Sweden." Energies 12, no. 11 (2019): 2200. http://dx.doi.org/10.3390/en12112200.

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Point Daylight Factor (DFP) has been used for daylighting design in Sweden for more than 40 years. Progressive densification of urban environments, in combination with stricter regulations on energy performance and indoor environmental quality of buildings, creates complex daylight design challenges that cannot be adequately solved with DFP. To support a development of the current and future daylight indicators in the Swedish context, the authors have developed a comprehensive methodology for the evaluation of daylight levels in existing buildings. The methodology comprises sample buildings of

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Konis, Kyle. "A novel circadian daylight metric for building design and evaluation." Building and Environment 113 (February 2017): 22–38. http://dx.doi.org/10.1016/j.buildenv.2016.11.025.

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Kuhlenengel, Michael, Iason Konstantzos, and Clarence Waters. "The Effects of the Visual Environment on K-12 Student Achievement." Buildings 11, no. 11 (2021): 498. http://dx.doi.org/10.3390/buildings11110498.

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The varying indoor environments among educational buildings can have an impact on students’ ability to learn. This study looks at field data from 220 classrooms in the Midwest, United States, over a two-year period, to analyze the effects of the visual environment on student achievement. The visual environmental metrics considered within this scope include the three new view metrics introduced within the EN 17037 “Daylight of Buildings” standard (Horizontal Sight Angle, Outside Distance of View, and Number of View Layers), as well as standard daylight and electric lighting metrics, focusing on

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Acosta, Ignacio, Jesús León, and Pedro Bustamante. "Daylight Spectrum Index: A New Metric to Assess the Affinity of Light Sources with Daylighting." Energies 11, no. 10 (2018): 2545. http://dx.doi.org/10.3390/en11102545.

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The current scenario of colorimetry shows a wide variety of different metrics which do not converge in the assessment of the color rendering of light sources. The limitations of the Color Rendering Index have promoted the emergence of new metrics, such as the Color Quality Scale. As in the case of the previous metric, these new concepts are based on the analysis of the deviation of different color samples in a color space, contrasting the results with those obtained with a light source reference, which can vary depending on the color temperature. Within this context, the Daylight Spectrum Inde

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Timon Duniya Timothy, Abbas Sa'id El-nafaty, Aminu Umar, Usman Mohammad Bashir, Sarkile Kawuwa Abubakar, and Usman Bukar Wakawa. "Daylight Optimization in Reading Spaces in the Design of Architecture Library, Kaduna State University, Nigeria." African Journal of Environmental Sciences and Renewable Energy 17, no. 1 (2024): 113–20. http://dx.doi.org/10.62154/ajesre.2024.017.010488.

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Daylight in a library is an intrinsic factor in teaching and learning spaces as daylight has been proven to stimulate the brain to stay active. However, too much daylight cause stress that affect assimilation. This study, therefore, examines and assesses the quality and quantity of daylight required for all learning spaces, according to International Energy Agency (IEA) using daylight elements to create variation in influx of lumen; with the purpose of combining manual and electronic study area. This case study is done Ahmadu Bello University, Zaria, Architecture Department Library using clima

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Faraji, Amir, Fatemeh Rezaei, Payam Rahnamayiezekavat, Maria Rashidi, and Hossein Soleimani. "Subjective and Simulation-Based Analysis of Discomfort Glare Metrics in Office Buildings with Light Shelf Systems." Sustainability 15, no. 15 (2023): 11885. http://dx.doi.org/10.3390/su151511885.

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Glare is a kind of physiological phenomenon that influences occupants’ visual comfort. Discomfort glare scenes in comparison to other levels of glare have been difficult to estimate and need accurate and reliable metrics. In contemporary architecture, the glass façade is so popular since it can remarkably minimize energy consumption in buildings and maximize daylight utilization as a natural energy. However, it is necessary to consider occupants’ visual discomfort due to the daylighting glare risks during the initial stage of design. Since the measured glare metrics should have an acceptable c

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Ratajczak, Julia, Dietmar Siegele, and Elias Niederwieser. "Maximizing Energy Efficiency and Daylight Performance in Office Buildings in BIM through RBFOpt Model-Based Optimization: The GENIUS Project." Buildings 13, no. 7 (2023): 1790. http://dx.doi.org/10.3390/buildings13071790.

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Architects face the challenge of exploring various design solutions in the early design stage, often with conflicting optimization goals. To tackle this complexity, they need to rely on tools and methodologies during the conceptual phase to assess and optimize designs, considering multiple aspects of building performance. Parametric Design, Generative Design, and automation in Building Information Modelling (BIM) offer architects new opportunities to work on complex buildings. These advancements empower designers to enhance their designs, increase project efficiency, improve performance, and r

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Chi, Doris A., David Moreno, and Jaime Navarro. "Correlating daylight availability metric with lighting, heating and cooling energy consumptions." Building and Environment 132 (March 2018): 170–80. http://dx.doi.org/10.1016/j.buildenv.2018.01.048.

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Soleimani, Kamyar, Nastaran Abdollahzadeh, and Zahra Sadat Zomorodian. "Improving Daylight Availability in Heritage Buildings: A Case Study of Below-grade Classrooms in Tehran." Journal of Daylighting 8, no. 1 (2021): 120–33. http://dx.doi.org/10.15627/jd.2021.9.

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Refurbished heritage buildings usually lack in meeting the required standards defined for the new function especially when reused as educational buildings. Therefore, they are usually equipped with different post-occupancy retrofit strategies to achieve an acceptable level of environmental quality and energy demand. Daylight quality and the distribution of natural light is a critical issue in educational spaces, given that the low level of illuminance in classrooms can decrease students' performance and disrupt visual tasks. In this study, daylight performance of below-grade south-facing class

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Saraoui, Selma, Azeddine Belakehal, Abdelghani Attar, and Amar Bennadji. "The Topological Reading of Ambiances in the Built Environment: The New Methodology for the Analysis of the Luminous Ambiance in the Museum Space." SHS Web of Conferences 64 (2019): 03004. http://dx.doi.org/10.1051/shsconf/20196403004.

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Daylight is currently at the centre of discourse on architectural space. The definition of architectural space takes essence from Euclidean geometry related to metric dimensions. The present study is an attempt to shed light on topology which is a non-Euclidean geometry. It can support non-metric components of space such as light to define architectural space. A corpus of six European museums has been chosen to study the immaterial or material relationships between form and daylight, since light is an essential element for the success of the exhibition. It also seeks to highlight discontinuity

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Czachura, A., N. Gentile, J. Kanters, and M. Wall. "Vertical Sky Component (VSC) and daylight regulation compliance by the EN 17037 and BFS 2011:6 standards." Journal of Physics: Conference Series 2600, no. 11 (2023): 112018. http://dx.doi.org/10.1088/1742-6596/2600/11/112018.

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Abstract This paper explores the relationship between the Vertical Sky Component (VSC) metric and the European and Swedish daylighting regulations. VSC, a static geometrical metric, is considered a useful early indicator of indoor daylighting, as it is insensitive to late-stage design details such as material properties and internal layout. However, its relationship with modern building daylighting legislation has not been established. To address this gap, the paper investigates the relationship of VSC and daylight compliance by static and dynamic methods through simulations of a ‘shoebox’ roo

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Berardi, Umberto, and Hamid Khademi Anaraki. "The benefits of light shelves over the daylight illuminance in office buildings in Toronto." Indoor and Built Environment 27, no. 2 (2016): 244–62. http://dx.doi.org/10.1177/1420326x16673413.

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Modern envelope technologies and architectural trends often encourage the adoption of large glazing surfaces. Light shelves are then proposed to reduce glare complaints, while providing better indoor daylight distribution. In this paper, the benefits of light shelves over the illuminance levels in office buildings in Toronto are evaluated. The useful daylight illuminance was used as the metric of analysis in this study. Annual simulations for buildings with different window-to-wall ratios were compared. Moreover, the effects of different window shapes, façade orientation and external obstructi

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Trinh, Vinh Quang, Sebastian Babilon, Paul Myland, and Tran Quoc Khanh. "Processing RGB Color Sensors for Measuring the Circadian Stimulus of Artificial and Daylight Light Sources." Applied Sciences 12, no. 3 (2022): 1132. http://dx.doi.org/10.3390/app12031132.

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The three main tasks of modern lighting design are to support the visual performance, satisfy color emotion (color quality), and promote positive non-visual outcomes. In view of large-scale applications, the use of simple and inexpensive RGB color sensors to monitor related visual and non-visual illumination parameters seems to be of great promise for the future development of human-centered lighting control systems. In this context, the present work proposes a new methodology to assess the circadian effectiveness of the prevalent lighting conditions for daylight and artificial light sources i

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Adel A. Mahmoud, Muhammad, Islam Ayman Mashaly, Yussra Mohamed Rashed, and Khaled Nassar. "A New Dynamic Climate-Based Daylight Metric for Sustainable Building Design in Hot Climates." Modern Environmental Science and Engineering 2, no. 05 (2016): 358–64. http://dx.doi.org/10.15341/mese(2333-2581)/05.02.2016/009.

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Mirdamadi, Maedeh Sadat, Zahra Sadat Zomorodian, and Mohammad Tahsildoost. "Evaluation of Occupants’ Visual Perception in Day Lit Scenes: A Virtual Reality Experiment." Journal of Daylighting 10, no. 1 (2023): 45–59. http://dx.doi.org/10.15627/jd.2023.4.

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Daylight improves indoor environmental quality, the physical and mental health of occupants, and their efficiency. Research in the area of human-centric lighting that considers the visual and non-visual effects of light on human vision, have focused on examining human visual perception in response to a wide variety of lighting aspects. To investigate the effect of surface materials, window size, and shading patterns on participants’ evaluation of brightness, daylight distribution, contrast, and satisfaction with view, a virtual reality experiment is implemented in a university classroom. Moreo

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Lucchini, Maristella, Shambhavi Thakur, Natalie Barnett, and Thomas Anders. "0764 End of daylight saving and sleep children 4-24 months." SLEEP 46, Supplement_1 (2023): A337. http://dx.doi.org/10.1093/sleep/zsad077.0764.

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Abstract Introduction Daylight saving time (DST) imposes a twice yearly 1h change in local clock time. Although it may seem a small adjustment, there is increasing awareness of the potential acute and long term effects at the individual and population level. Several studies have shown detrimental effects on sleep patterns, but mostly focusing on adults. Only one study has looked at the effect in infants’ sleep of change from standard time (ST) to DST, reporting negative effects. One study limitation was the reliance on parental reports of infant sleep. In addition, effects of the change from D

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Lee, Jaewook, Mohamed Boubekri, and Feng Liang. "Impact of Building Design Parameters on Daylighting Metrics Using an Analysis, Prediction, and Optimization Approach Based on Statistical Learning Technique." Sustainability 11, no. 5 (2019): 1474. http://dx.doi.org/10.3390/su11051474.

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Daylighting metrics are used to predict the daylight availability within a building and assess the performance of a fenestration solution. In this process, building design parameters are inseparable from these metrics; therefore, we need to know which parameters are truly important and how they impact performance. The purpose of this study is to explore the relationship between building design attributes and existing daylighting metrics based on a new methodology we are proposing. This methodology involves statistical learning. It is an emerging methodology that helps us to analyze a large qua

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Shamseldin, Amal. "Improvement of the Psychological Lighting Effect Assessment in the Environmental Building Rating Systems." Journal of Sustainable Architecture and Civil Engineering 29, no. 2 (2021): 102–20. http://dx.doi.org/10.5755/j01.sace.29.2.28475.

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Green Architecture is not only about the way of controlling the resources consumption within sustainable limits, but it also emphasizes the positive effect on the different human requirements including his physiological sides. People spend a lot of time indoors under artificial lighting that usually lacks the dynamism and biological effect of daylight. Dynamic lighting, as an application of circadian lighting, has been used and studied in several buildings' functions with different scenarios to achieve better human performance and wellbeing. This article shed a light on the importance and the

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Acosta, Ignacio. "Daylight Spectrum Index: Development of a New Metric to Determine the Color Rendering of Light Sources." International Journal of Engineering and Technology 9, no. 6 (2017): 442–47. http://dx.doi.org/10.7763/ijet.2017.v9.1014.

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Wang, Tsung-Hsien, Yichun Huang, and Jihyun Park. "Development of Daylight Glare Analysis Method Using an Integrated Parametric Modelling Approach: A Comparative Study of Glare Evaluation Standards." Buildings 12, no. 11 (2022): 1810. http://dx.doi.org/10.3390/buildings12111810.

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Conducting lighting simulations to investigate lighting performance, such as glare, is widely accepted and of particular interest in the design development stage. However, the main challenge remains in integrating lighting performance metrics into a streamlined modelling and evaluation workflow. With the advancement in digital and modelling technologies, an automatic workflow of modelling parametric design studies with lighting performance evaluation becomes feasible. This study investigates a parametric modelling approach to facilitate glare evaluation using China Green Building Standard as a

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Sigura, Verda, Ellen Kathrine Hansen, and Henrik Clausen. "Designing Natural Atmosphere in Office Environment Through Daylight Responsive Dynamic Lighting." IOP Conference Series: Earth and Environmental Science 1099, no. 1 (2022): 012029. http://dx.doi.org/10.1088/1755-1315/1099/1/012029.

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Abstract Often the criteria for designing office lighting is to increase efficiency through a bright and evenly distributed lighting. Yet, research has found that this static lighting leads to an unstimulating, boring, and dull luminous environment that supports neither task focus, nor a pleasant atmosphere. The goal of this paper is to create a closer connection to a natural light environment by designing an office lighting that inspired by light as natural phenomenon creates a lively and more nature-based atmosphere. We developed a lighting design with focus on analysing the perceived atmosp

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Zazzini, P., A. Di Crescenzo, and R. Giammichele. "Numerical Analysis of the Performance of an Innovative Daylighting System Named Modified Double Light Pipe." TECNICA ITALIANA-Italian Journal of Engineering Science 65, no. 2-4 (2021): 353–60. http://dx.doi.org/10.18280/ti-ijes.652-432.

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This paper focuses on the performance of an innovative daylighting system named Modified Double Light Pipe (MDLP). It consists of a device integrating a Double Light Pipe (DLP) with a light shelf. The DLP has been created by the authors to enter daylight into two levels underground buildings. It involves an excessive bulk and the risk of glare in the passage environment. The MDLP is an attempt to solve these problems by coupling the DLP and the light shelf technologies. The authors used a numerical approach modeling the MDLP by the software Rhinoceros and simulating its performance by Grasshop

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Suk, Jae Yong, Marc Schiler, and Karen Kensek. "Absolute glare factor and relative glare factor based metric: Predicting and quantifying levels of daylight glare in office space." Energy and Buildings 130 (October 2016): 8–19. http://dx.doi.org/10.1016/j.enbuild.2016.08.021.

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Sorooshnia, Ehsan, Maria Rashidi, Payam Rahnamayiezekavat, and Bijan Samali. "Optimizing Window Configuration Counterbalancing Energy Saving and Indoor Visual Comfort for Sydney Dwellings." Buildings 12, no. 11 (2022): 1823. http://dx.doi.org/10.3390/buildings12111823.

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Building penetrations are the most-potent elements providing daylight and moderating the lighting energy consumption and affecting indoor comfort and consequent energy usage. In a semi-tropical climate with a green environment such as Sydney, there is a radical demand to extend windows providing views. This research aims to optimize sunlight admission and maintain indoor comfort while minimizing energy consumption. The method for investigation is to simulate a multiobjective optimization using NSGA-II considering visual and thermal comfort along with energy usage and view of the outside. A com

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Witus, Gary, and R. Darin Ellis. "Computational Modeling of Foveal Target Detection." Human Factors: The Journal of the Human Factors and Ergonomics Society 45, no. 1 (2003): 47–60. http://dx.doi.org/10.1518/hfes.45.1.47.27231.

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This paper presents the VDM 2000, a computational model of target detection designed for use in military developmental test and evaluation settings. The model integrates research results from the fields of early vision, object recognition, and psychophysics. The VDM2000 is image based and provides a criterion-independent measure of target conspicuity, referred to as the vehicle metric (VM). A large data set of human responses to photographs of military vehicles in a field setting was used to validate the model. The VM adjusted by a single calibration parameter accounts for approximately 80% of

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Frank, Jeremy, Minh Do, and Tony Tran. "Scheduling Ocean Color Observations for a GEO-Stationary Satellite." Proceedings of the International Conference on Automated Planning and Scheduling 26 (March 30, 2016): 376–84. http://dx.doi.org/10.1609/icaps.v26i1.13780.

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The GEO-Stationary Coastal and Air Pollution Events (GEO-CAPE) mission plans to put a visible spectrum imaging instrument on a satellite in geo-stationary orbit to perform ocean color remote sensing. Two different instrument designs, Filter Radiometer (FR) and COastal Ecosystems Dynamic Imager (COEDI), with different shape for the imaged area and image acquisition time, are being evaluated. Scheduling observations for either instrument requires optimizing science objectives in the presence of predicted cloud cover and available daylight. We model this scheduling problem as both Mixed Integer L

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Wagiman, Khairul Rijal, Mohd Noor Abdullah, Mohammad Yusri Hassan, and Nur Hanis Mohammad Radzi. "A new metric for optimal visual comfort and energy efficiency of building lighting system considering daylight using multi-objective particle swarm optimization." Journal of Building Engineering 43 (November 2021): 102525. http://dx.doi.org/10.1016/j.jobe.2021.102525.

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Benke, Kurt, Nathan Robinson, Sorn Norng, David Rees, and Garry O'Leary. "Epistemic Uncertainties in the Assessment of Regional Soil Acidification." Environments 9, no. 8 (2022): 97. http://dx.doi.org/10.3390/environments9080097.

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The increasing acidification of soil due to pollution and agricultural management practices is a growing problem worldwide, where food production is already under threat by climate change, more frequent droughts, and soil nutrient depletion. Soil acidification is quantified by pH measurements and is a primary metric for soil health. High soil acidity is a constraint on the production of grains and other crops because it decreases the bioavailability of important plant nutrients while increasing soil toxicity arising from an imbalance of essential soil elements. Field pH can be estimated by col

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Woo, May, Roxana Jafarifiroozabadi, Piers MacNaughton, Sahar Mihandoust, Sara Kennedy, and Anjali Joseph. "Using Discrete Choice Methodology to Explore the Impact of Patient Room Window Design on Hospital Choice." Journal of Patient Experience 9 (January 2022): 237437352211072. http://dx.doi.org/10.1177/23743735221107240.

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Evidence-based design has been fundamental to designing healthcare environments for patient outcomes and experience, yet few studies have studied how design factors drive patient choice. 652 patients who recently received care at hospitals across the United States were administered an online discrete choice survey to investigate the factors playing into their choice between hypothetical hospitals. Discrete choice models are widely used to model patient preferences among treatment alternatives, but few studies have utilized this approach to investigate healthcare design alternatives. In the cur

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Chi, Doris A. "Solar energy density as a benchmark to improve daylight availability and energy performance in buildings: A single metric for a single-objective optimization." Solar Energy 234 (March 2022): 304–18. http://dx.doi.org/10.1016/j.solener.2022.01.068.

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Zekry, Omnya Saleh, Ahmed Ahmed Fekry, and Reham El Dessuky Hamed. "Artificial Neural Network to Predict Curvature Light Shelf Design Related Daylighting Optimization on Office Spaces." Journal of Daylighting 11, no. 2 (2024): 334–48. http://dx.doi.org/10.15627/jd.2024.23.

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Energy Optimization in building design field now has been revolutionized due to AI and machine learning applications. Leveraging daylight to reduce artificial lighting consumption holds promise for significant energy savings, yet the nonlinear nature of daylight patterns poses challenges in prediction and optimization. This study proposes a novel approach to automated light shelf design using machine learning algorithms, specifically artificial neural networks (ANNs) such as recurrent neural networks (RNN) by long short term memory (LSTM), to accelerate daylighting simulation and optimization

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Koenderink, J. J., A. J. van Doorn, and J. S. Lappin. "Exocentric Directions in Egocentric Space." Perception 25, no. 1_suppl (1996): 86. http://dx.doi.org/10.1068/v96p0115.

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Observers had to direct a pointer (using a radio link for remote control) at some location towards a beacon at another location such that the pointer appeared to point straight at the beacon. Experiments were done in the natural landscape under broad daylight with the subjects using natural (binocular) vision. Distances were in the range of 1 – 24 m. The location of the vantage point was prescribed, but the observers were allowed (indeed needed) to make eye, head, and body movements, including placement of the feet. Only one or two beacons were visible at any time, but positions were taken fro

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