scholarly journals Review of spectral lighting simulation tools for non-image- forming effects of light

2021 ◽  
Vol 2042 (1) ◽  
pp. 012122
Author(s):  
M Gkaintatzi-Masouti ◽  
J van Duijnhoven ◽  
M P J Aarts
Keyword(s):  
Building Design ◽  
Lighting Design ◽  
Light Sources ◽  
Visual Comfort ◽  
Review Of Literature ◽  
Simulation Tools ◽  
Current State ◽  
Health Related ◽  
Lighting Simulation ◽  
User Friendly

Abstract Light via our eyes influences visual performance, visual comfort and visual experience, but also affects several health related, non-image-forming (NIF) responses. New metrics have been developed to quantify the NIF effects of light. In order to incorporate these in lighting design practice, simulation tools are required that are able to process information about the spectral distribution of light sources and materials. However, most of the tools currently used for daylight and electric light simulations simplify the spectrum into RGB (Red, Green, Blue) colour values. This paper presents an overview of the currently used programs for simulating the NIF effects of light in building design and discusses the possibility of using existing spectral rendering software as an alternative. A review of literature shows that mostly Radiance or Radiance-based programs have been used so far, but new user-friendly tools could employ existing spectral rendering tools. As the NIF effects of light gain greater importance in lighting design, new simulation workflows are needed. This paper aims to support the development of future workflows by presenting the current state-of-the-art.

scholarly journals The Implementation of Visual Comfort Evaluation in the Evidence-Based Design Process Using Lighting Simulation

2021 ◽  
Vol 11 (11) ◽  
pp. 4982
Author(s):  
Anahita Davoodi ◽  
Peter Johansson ◽  
Myriam Aries
Keyword(s):  
Performance Metrics ◽  
Analysis Data ◽  
Evidence Based ◽  
Visual Comfort ◽  
Simulation Tools ◽  
Post Occupancy Evaluation ◽  
Lighting Simulation ◽  
Insight Into

Validation of the EBD-SIM (evidence-based design-simulation) framework, a conceptual framework developed to integrate the use of lighting simulation in the EBD process, suggested that EBD’s post-occupancy evaluation (POE) should be conducted more frequently. A follow-up field study was designed for subjective–objective results implementation in the EBD process using lighting simulation tools. In this real-time case study, the visual comfort of the occupants was evaluated. The visual comfort analysis data were collected via simulations and questionnaires for subjective visual comfort perceptions. The follow-up study, conducted in June, confirmed the results of the original study, conducted in October, but additionally found correlations with annual performance metrics. This study shows that, at least for the variables related to daylight, a POE needs to be conducted at different times of the year to obtain a more comprehensive insight into the users’ perception of the lit environment.

scholarly journals Increasing Life Span of Government Housings of Chandigarh – A Need-Based Approach to Retrofit Through Prototype Study of E-Type Housing

2016 ◽  
Vol 4 (1) ◽  
pp. 67-86
Author(s):  
PREETI PAHWA ◽  
ANISH SHARMA
Keyword(s):  
Le Corbusier ◽  
Visual Comfort ◽  
Graduate Studies ◽  
Simulation Tools ◽  
Current State ◽  
Political Background ◽  
The Government ◽  
The Many ◽  
The University ◽  
The Given

This paper describes a project undertaken by the authors during their post-graduate studies at the University of Shefield. The intent of the project was to identify building(s) that need up-gradation/retroit, establish why retroit is required, what kind of retroit is needed and which techniques to employ, using a case-sensitive approach. However, the scope of this paper is limited to the irst two objectives of the project and the recognition of retroit techniques is left open-ended  so as to leave room for future debates and deliberations.The city of Chandigarh has always been highlight prominently on India’s architectural heritage map. Various buildings designed by Le Corbusier and his team (comprising Pierre Jeanerette, Jane Drew and Maxwell Fry) are like jewels (to be treasured) on this map. Still, ever since these buildings, especially the government housings, came into existence, no systematic procedures have been undertaken to analyse and assess their deterioration with time and usage. Passing down the streets of Chandigarh, one would observe how drastically the housings have been modiied, and in some cases, have lost their original appeal.The paper is essentially drafted in three parts. The irst part illustrates the conditions and political background in which these buildings were designed, so as to better understand the essence of this architecture. The second part tries to comprehend the current state of one of the many types of the Government Housings present in Chandigarh – the ‘House Type E1’ in Panjab University. Lastly, the authors use various scales, like present seismic byelaws and Computer Aided simulation tools, to evaluate how the given housing now fares in terms of structural stability and thermal & visual comfort.

scholarly journals THE EFFECT OF BUILDING DESIGN ELEMENTS ON NATURAL LIGHTING PERFORMANCE IN BADMINTON INDOOR FIELD BUMI PANCASONA KBP BANDUNG

2020 ◽  
Vol 4 (1) ◽  
pp. 33-49
Author(s):  
Safira Ali ; Ariani Mandala
Keyword(s):  
Building Design ◽  
Lighting Design ◽  
Visual Comfort ◽  
Design Elements ◽  
Natural Lighting ◽  
Type Design ◽  
Starting Point ◽  
Standard Value ◽  
Object Of Study ◽  
Space Activities

Abstract- A good design of light holes in buildings can be done to maximize the potential for natural lighting in tropical countries. The building of badminton sports is one of the functions of a wide span building that is sensitive to natural lighting and requires special techniques in incorporating natural light into it because of its wide span. There are three aspects of visual comfort that must be met by lighting design in badminton sports buildings, namely 2% daylight factor, the distribution of illumination and glare effects. The three aspects of visual comfort will be the starting point of this research as a research variable. This study aims to determine the effect of design elements on natural lighting performance on the Pancasona Sportcenter Earth study object by exploring design elements. The study was conducted by evaluating the performance of the object of study and analyzing the influence of site and building elements on the performance of natural lighting in buildings. From the evaluation of natural lighting performance in the study object, it will be known that the design elements that have the most influence on natural lighting on the badminton court. Design elements that have the potential to improve the performance of natural lighting in the object of study will be explored. Exploration is done by simulating the Velux computer program to create controlled conditions. Based on the results of the evaluation, the study object has not reached the applicable visual comfort standard with a 0.1% daylight factor value, the distribution of illumination is less uniform, and there is no glare. Design elements that have the potential to improve visual comfort in buildings are the position of the net on the interior of the building, the width of the openings and the position of openings in the building, these three elements will be explored further in an effort to improve visual comfort. The exploration results that provide the closest standard value are an exploration of the sawtooth type design, with the value of daylight factor 1.1%, the distribution of illumination most evenly between all explorations and no glare on the field throughout the year. Based on exploration results, each element of design explored will improve the performance of different natural lighting depending on the needs of the building and space activities. Key Words: Natural lighting, badminton, wide span, daylight factor, illumination, glare, footprint, building, natural lighting performance.

scholarly journals Conceptualizing Health Promotion in Relation to Outpatient Healthcare Building Design: A Scoping Review

2018 ◽  
Vol 12 (1) ◽  
pp. 69-86 ◽  
Author(s):  
Elke Miedema ◽  
Göran Lindahl ◽  
Marie Elf
Keyword(s):  
Health Promotion ◽  
Scoping Review ◽  
Building Design ◽  
Outpatient Services ◽  
Healthcare Organizations ◽  
Diverse Range ◽  
Current State ◽  
Health Related ◽  
Behavior Health ◽  
Associated Design

Objective: This review explored different conceptualizations of health promotion in the context of, and in relation to, outpatient building design. Background: Today’s healthcare organizations are implementing holistic healthcare approaches such as health promotion, while simultaneously increasing their outpatient services. These health promotion approaches, focused on empowering people to take control of their health, are expected to have implications for the outpatient healthcare building design. Yet there is limited knowledge what these may be. A review of the literature on the current state of the art is thus needed to enable and support dialog on future healthcare building design. Method: A scoping review of 4,506 papers, collected from four databases and three scientific journals in 2015, resulted in 14 papers relating health promotion to building design and outpatient healthcare. From the subsequent content analysis, multiple common themes and subthemes emerged. Results: The review reveals diverse range of health promotion interpretations, three health promotion perspectives (health behavior, health equity, and sense of coherence), associated design approaches, design objectives, health-related outcomes, building features, and solutions. Conclusions: While diverse health promotion perspectives might merely represent variations in focus, these differences become problematic when relating to building design. To support further dialogs on development of health promotion in, and in relation to, the build environment, there is a need to strengthen the health promotion vocabulary. Further research is needed to compare different design approaches and how these can be combined to minimize contradicting implications for building design.

Luminous Environment and the Perceived Environment

2019 ◽  
pp. 15-21
Author(s):  
Banu Manav
Keyword(s):  
Experimental Studies ◽  
Light Output ◽  
Lighting Design ◽  
Lighting System ◽  
Main Concept ◽  
Healthy Environment ◽  
Perceived Environment ◽  
Efficiency Cost ◽  
Lighting Systems ◽  
User Friendly

In lighting design, the main concept is to achieve a healthy environment, which addresses energy efficiency, cost, maintenance, and quality. User-friendly lighting systems shall be adopted to architecture and interior architecture. User control over the lighting system is important, by dimming or increasing light output, by changing the colour of the light sets the inner atmosphere and affects user mood. Standards and codes on lighting shall also be evaluated by means of these topics. The paper aims to analyse how the luminous environment is affective on the perceived environment. Hence, a series of experimental studies and recent research will be evaluated in regard to understanding and designing luminous environment.

Use of photodynamic therapy for photodamage skin (review of literature)

2019 ◽  
Vol 1 (7) ◽  
pp. 19-23
Author(s):  
S. I. Surkichin ◽  
N. V. Gryazeva ◽  
L. S. Kholupova ◽  
N. V. Bochkova
Keyword(s):  
Photodynamic Therapy ◽  
Comparative Evaluation ◽  
Clinical Manifestations ◽  
Light Sources ◽  
Review Of Literature ◽  
Photosensitizing Agents ◽  
Selection Of

The article provides an overview of the use of photodynamic therapy for photodamage of the skin. The causes, pathogenesis and clinical manifestations of skin photodamage are considered. The definition, principle of action of photodynamic therapy, including the sources of light used, the classification of photosensitizers and their main characteristics are given. Analyzed studies that show the effectiveness and comparative evaluation in the selection of various light sources and photosensitizing agents for photodynamic therapy in patients with clinical manifestations of photodamage.

The Research on the Application of Two Kinds of Light Sources in the Training Venue for Physical Education of Universities

2012 ◽  
Vol 430-432 ◽  
pp. 1786-1790 ◽  
Author(s):  
Shu Fang Li
Keyword(s):  
Energy Efficiency ◽  
High Pressure ◽  
Physical Education ◽  
Lighting Design ◽  
Light Sources ◽  
Metal Halide Lamp ◽  
Sodium Lamp ◽  
Electric Light ◽  
High Pressure Sodium Lamp ◽  
Power And Energy

The energy efficiency experiment of electric light is implemented according to the lighting design of the physical training venues. In the experiment, the corresponding illumination, power and energy efficiency ratio of the commonly used high pressure sodium lamp and metal halide lamp which work under the voltage ranging from 187V to 234V are experimentally measured and the lighting effect characteristics of the two kinds of electric light sources compared, proving that the high pressure sodium light source should be employed in the training venue for physical education of universities.

scholarly journals Sampo-UI: A full stack JavaScript framework for developing semantic portal user interfaces

Semantic Web ◽  
2021 ◽  
pp. 1-16
Author(s):  
Esko Ikkala ◽  
Eero Hyvönen ◽  
Heikki Rantala ◽  
Mikko Koho
Keyword(s):  
User Interfaces ◽  
Linked Data ◽  
State Of The Art ◽  
Software Framework ◽  
End User ◽  
Faceted Search ◽  
Software Developer ◽  
Current State ◽  
Knowledge Graphs ◽  
User Friendly

This paper presents a new software framework, Sampo-UI, for developing user interfaces for semantic portals. The goal is to provide the end-user with multiple application perspectives to Linked Data knowledge graphs, and a two-step usage cycle based on faceted search combined with ready-to-use tooling for data analysis. For the software developer, the Sampo-UI framework makes it possible to create highly customizable, user-friendly, and responsive user interfaces using current state-of-the-art JavaScript libraries and data from SPARQL endpoints, while saving substantial coding effort. Sampo-UI is published on GitHub under the open MIT License and has been utilized in several internal and external projects. The framework has been used thus far in creating six published and five forth-coming portals, mostly related to the Cultural Heritage domain, that have had tens of thousands of end-users on the Web.

ARESIBO HORIZON 2020 EUROPEAN RESEARCH PROJECT – ENRICHED SITUATION AWARENESS FOR BORDER SURVEILLANCE

2021 ◽  
Vol 17 (1) ◽  
pp. 247-255
Author(s):  
Konstantinos CHARISI ◽  
Andreas TSIGOPOULOS ◽  
Spyridon KINTZIOS ◽  
Vassilis PAPATAXIARHIS
Keyword(s):  
Augmented Reality ◽  
Situation Awareness ◽  
User Interfaces ◽  
Border Security ◽  
Multiple Sources ◽  
Horizon 2020 ◽  
Research And Innovation ◽  
Current State ◽  
Available Information ◽  
User Friendly

Abstract. The paper aims to introduce the ARESIBO project to a greater but targeted audience and outline its main scope and achievements. ARESIBO stands for “Augmented Reality Enriched Situation awareness for Border security”. In the recent years, border security has become one of the highest political priorities in EU and needs the support of every Member State. ARESIBO project is developed under HORIZON 2020 EC Research and Innovation program and it is the joint effort of 20 participant entities from 11 countries. Scientific excellence and technological innovation are top priorities as ARESIBO enhances the current state-of-the-art through technological breakthroughs in Mobile Augmented Reality and Wearables, Robust and Secure Telecommunications, Robots swarming technique and Planning of Context-Aware Autonomous Missions, and Artificial Intelligence (AI), in order to implement user-friendly tools for border and coast guards. The system aims to improve the cognitive capabilities and the perception of border guards through intuitive user interfaces that will help them acquire an improved situation awareness by filtering the huge amount of available information from multiple sources. Ultimately, it will help them respond faster and more effectively when a critical situation occurs.

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