Academic literature on the topic 'Human centric light'
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Journal articles on the topic "Human centric light"
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Bodrogi, Peter, Quang Trinh Vinh, and Tran Quoc Khanh. "Opinion: The usefulness of light sources in human centric lighting." Lighting Research & Technology 49, no. 3 (May 2017): 292. http://dx.doi.org/10.1177/1477153517707427.
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Thi Giang, Duong, Thuy Linh La, Tran Quoc Tien, Pham Hong Duong, and Quang Cong Tong. "A Simple Designed Lens for Human Centric Lighting Using LEDs." Applied Sciences 10, no. 1 (January 2, 2020): 343. http://dx.doi.org/10.3390/app10010343.
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Light is generally important for human beings. Visible light supports vision and can modify circadian rhythm, and together with invisible light at longer or shorter wavelength can also make either a direct or indirect impact on human biological and mental health. For medical applications, several studies have shown success in using light to fasten the skin regeneration in burns and to cure diseases such as newborn jaundice. In daily life, an appropriate amount and time exposure to certain types of light can result in rising of alertness and mood improvement, which leads to noticeable growth in one’s productivity. Therefore, human centric lighting can modify lighting factors to make the best of the natural characteristics of light. The seek an ideal indoor lighting system is widely carried out not only by scientists but also by architects. A qualified luminaire is considered by many factors, including luminous productivity, visual comfort and expenses; meanwhile, the idealization of illuminance is also constructed in many ways, such as widening the lamp’s surface area, changing of luminaire’s positions and applying different methods to illuminate a surface. Approaching these problems, our idea is to study the uplighting method and freeform optics using low-cost acrylic lenses. By changing lens shape and optimizing the factors which affect the illuminance such as the irradiation angle and the distance between the luminaire and the reflection surfaces, we find the most effective lens and its peaks due to each factors using the ray-tracing simulation to obtain results concerning high uniformity of illumination.
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Houser, Kevin W. "Ethics and Fallacies of Human-Centric Lighting and Artificial Light at Night." LEUKOS 17, no. 4 (August 4, 2021): 319–20. http://dx.doi.org/10.1080/15502724.2021.1951021.
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Lam, F. "Applying light for human health: What lighting designers need to know." Lighting Research & Technology 53, no. 5 (July 20, 2021): 485–87. http://dx.doi.org/10.1177/1477153521996767.
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As lighting designers, our work impacts people and the environment. Putting human-centric thinking and approaches at the heart of design is the first principle. This paper reflects a personal view on what lighting designers need to know before they can apply professional judgement and claim that their lighting design will improve human health.
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Chien, S.-C., S.-M. Chien, E. Lau, and P. Lin. "Light Beyond Vision: Implications for Human-centric Lighting Design in Tropical Nursing homes." IOP Conference Series: Earth and Environmental Science 410 (January 24, 2020): 012097. http://dx.doi.org/10.1088/1755-1315/410/1/012097.
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Klein, Joëlle, and Kamrul Hossain. "Conceptualising Human-centric Cyber Security in the Arctic in Light of Digitalisation and Climate Change." Arctic Review on Law and Politics 11 (2020): 1. http://dx.doi.org/10.23865/arctic.v11.1936.
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The following article revisits existing scholarship on human-centric approaches to security in cyberspace and argues that a holistic understanding of cyber security in the Arctic must include discussion of the use of cyber technology in the everyday lives of individuals and communities, addressing both the ways such tools enable and undermine human security. Simultaneously, the article contextualises the Arctic as a region undergoing rapid change as a result of climate change and increased digitalisation and seeks to understand the consequent implications for human security. In light of these considerations, the article analyses the existing constraints and possibilities that cyber security and digitalisation pose for human security and revisits them from a humancentric perspective of cyber security. It also seeks to contextualise such security influences in relation to the role of climate change and its influence on the region. Finally, several examples are discussed to underline the interdependent implications of digitalisation and climate change from a human-centric perspective of cyber security in the Arctic.
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Kurban, Dilek. "An Intimate Yet Anglo-Centric Account of a Renaissance Human Rights Man." Israel Law Review 54, no. 1 (January 14, 2021): 120–34. http://dx.doi.org/10.1017/s0021223720000242.
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In his well-researched biography, Mike Chinoy chronicles Kevin Boyle's life and career as a scholar, activist and lawyer, bringing to light his under-appreciated role in the civil rights movement in Northern Ireland and the efforts to find a peaceful solution to the conflict, as well as his contributions to human rights movements in the United Kingdom, Europe and the world. Are You With Me? is an important contribution to the literature on the actors who have shaped the norms, institutions and operations of human rights. In its efforts to shed light on one man, the book offers a fresh alternative to state-centric accounts of the origins of human rights. The book offers a portrait of a social movement actor turned legal scholar who used the law to contest the social inequalities against the minority community to which he belonged and to push for a solution to the underlying political conflict, as well as revelations of the complex power dynamics between human rights lawyers and the social movements they represent. In these respects Are You With Me? also provides valuable insights for socio-legal scholars, especially those focusing on legal mobilisation. At the same time the book could have provided a fuller and more complex biographical account had Chinoy been geographically and linguistically comprehensive in selecting his interviewees. The exclusion of Kurdish lawyers and human rights advocates is noticeable, particularly in light of the inclusion of Boyle's local partners in other contexts, such as South Africa.
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Foster, RG. "Fundamentals of circadian entrainment by light." Lighting Research & Technology 53, no. 5 (July 20, 2021): 377–93. http://dx.doi.org/10.1177/14771535211014792.
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Light at dawn and dusk is the key signal for the entrainment of the circadian clock. Light at dusk delays the clock. Light at dawn advances the clock. The threshold for human entrainment requires relatively bright light for a long duration, but the precise irradiance/duration relationships for photoentrainment have yet to be fully defined. Photoentrainment is achieved by a network of photosensitive retinal ganglion cells (pRGCs) which utilise the short-wavelength light-sensitive photopigment, melanopsin. Although rods and cones are not required, they do play a role in photoentrainment, by projecting to and modulating the endogenous photosensitivity of the pRGCs, but in a manner that remains poorly understood. It is also important to emphasise that the age and prior light exposure of an individual will modify the efficacy of entrainment stimuli. Because of the complexity of photoreceptor interactions, attempts to develop evidence-based human centric lighting are not straightforward. We need to study how humans respond to dynamic light exposure in the ‘real world’ where light intensity, duration, spectral quality and the time of exposure vary greatly. Defining these parameters will allow the development of electric lighting systems that will enhance human circadian entrainment.
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Serikov, Yakov, and Karina Serikova. "Theoretical justification and practical aspects of implementation of Human Centric Lighting Program in production conditions." Ukrainian Metrological Journal, no. 1 (March 31, 2021): 40–45. http://dx.doi.org/10.24027/2306-7039.1.2021.228235.
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The relevance of the introduction of HCL systems in production conditions, in which the dynamics of changes in the characteristics of light flux can be synchronized with the circadian biorhythms of the human body. This is determined by the fact that the unsatisfactory characteristics of industrial lighting increase the risk of injury and occupational morbidity. It is shown that providing only normative quantitative characteristics of illumination is not enough, since its qualitative characteristics – ripple coefficient, spectral composition cause non-visual effect of light. They can affect the psychophysiological state of a person, his\her performance, fatigue by affecting the circadian biorhythms of the body. The comparison of standard values of the level of artificial lighting of jobs in different countries with natural ones. Based on the analysis, recommendations were developed aimed at improving artificial lighting. The analysis of the results of the study of non-visual effect of the pulsation of the light flux on the psychophysiology of a person was carried out. Its main negative consequences are given, the necessary tasks for the implementation of the HCL program in a production environment in this aspect are identified. The results of analysis of studies of the influence of the color temperature of the light flux on the psychophysiological state of a person are also presented. Recommendations on the regulation of this parameter for various types of production activities have been developed.
Keywords: industrial lighting; NIF-effect; occupational injuries.
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Paik, Young-Ki, Gilbert S. Omenn, Christopher M. Overall, Eric W. Deutsch, and William S. Hancock. "Recent Advances in the Chromosome-Centric Human Proteome Project: Missing Proteins in the Spot Light." Journal of Proteome Research 14, no. 9 (September 4, 2015): 3409–14. http://dx.doi.org/10.1021/acs.jproteome.5b00785.
Full textDissertations / Theses on the topic "Human centric light"
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Möttönen, Karin, and Mikael Hedén. "Human Centric Lighting : Automatisk belysningsvariation för hälsa, välbefinnande och elsparande." Thesis, Högskolan Dalarna, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:du-31324.
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Examensarbetet är en undersökning avseende implementering av Human Centric Lighting (HCL)- system i hemmamiljö. En litteraturstudie har genomförts om HCL, dess effekter på människan och LED-belysningens påverkan både på människan och miljön. För att få en bra praktisk grund gjordes även ett undersökande besök på Lindeborgsskolan i Malmö som i ett pilotprojekt har installerat HCL-system i ett klassrum. HCL handlar bland annat om att anpassa ljuset till människans varierande behov genom att variera intensitet (Lux) och färgtemperatur (Kelvin). Belysning har stor betydelse för människans välmående där en belysning med onaturlig spektralfördelning och flimmer kan leda till stress, sömnproblem samt att ögonen kan försämras. Ett bra varierande ljus kan däremot öka människans välmående, produktivitet och även ge en positivare inställning. En del forskning visar även på att HCL kan minska risken för årstidsbunden depression. Ett blått, mer intensivt ljus har en uppiggande effekt medan ett rött nerdämpat ljus verkar lugnande. Genom att utsätta kroppen för mycket blått ljus på förmiddagen men inte på eftermiddagen/kvällen gynnas kroppens cirkadiska cykel. Även rött ljus har visat sig ha en uppiggande effekt men påverkar inte den cirkadiska cykeln och kan med fördel användas även på kvällstid om en högre ljusintensitet behövs. Tre separata reglerbara belysningssystem har undersökts: Clas Ohlson WiFi Smart Bulb, IKEA trådfri belysning och Philips Hue White Ambiance. Kravet som ställdes för att belysningen skulle tas med i testet var att den skulle finnas tillgänglig i en relativt vanlig butik. Belysningen har testats både med avseende på ljusegenskaper samt energianvändning. En del av mätningarna utfördes med ett Ulbrichtklot på Clas Ohlsons ljuslaboratorium där färgspektrum, lumenvärde samt mycket annan information om ljuskällan kunde tas fram, samt med en handhållen spektrometer för att se flimmeravgivningen ifrån lampan vid olika inställningar. Energianvändningen undersöktes beträffande förändringar vid variation av färgtemperatur, intensitet och även i de fall som separat reglerutrustning krävdes. De tre belysningssystemen visade sig ha olika fördelar och nackdelar där en till slut valdes ut för att installeras i ett sovrum i utbildningsprojektet Dalarnas Villa. Baserat på ett tidigare gjort ljusschema, i en masteruppsats gjord av en ljusdesigner vid KTH, togs ett nytt ljusschema fram för sovrummet som förändrar ljusets intensitet och färgtemperatur för att främja den cirkadiska cykeln. Då författarna ser att detta är ett viktigt ämne så har varje möjlighet till att visa upp det installerade systemet tagits. Vid samtal med bland annat energirådgivare från Dalarna så har ett stort intresse visats. ” Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity (WHO 1946). Health should be at the centre of all societal planning because social inequalities in health are costly to the society and counteract sustainable development (Malmö stad 2013). It is one of the main conditions for individual development opportunities through education, work, social relationships and participation in the society (UN 1949). Health is a key to the other human rights and also constitutes a separate right (WHO 2008).” Sustainability issues for SSL (R. Karlsson et al. 2016)This thesis is a study concerning the implementation of Human Centric Lighting (HCL)-systems in the home environment. A literature study has been conducted on light, its effects on humans and the influence of LED lighting on both humans and the environment. To obtain a good practical foundation, an investigative study visit was also made to Lindeborgsskolan in Malmö, which as a pilot project has installed HCL systems in a classroom. HCL is, among other things, about adapting the light to man's varying needs by varying intensity (Lux) and color temperature (Kelvin). Lighting is of great importance to human well-being where lighting with unnatural spectral distribution and flicker can lead to stress, sleep problems and that the eyes can deteriorate. A good variety of light can, on the other hand, increase human well-being, productivity and give a positive attitude. Some research also shows that HCL can reduce the risk of seasonal depression. A blue, more intense light has a wakeup effect, while a red low intensity light feels soothing. By exposing the body to much blue light in the morning but not in the afternoon / evening, the body's circadian cycle benefits. Even red light has been shown to have a stimulating effect but does not affect the circadian cycle and can be used even in the evening if a higher light intensity is needed. Three separate controllable lighting systems have been investigated: “Clas Ohlson Wi-Fi Smart Bulb”, “IKEA trådfri” and “Philips Hue White Ambiance”. The lighting has been tested both in terms of light quality and energy use. The light quality was examined partly with an “Ulbrichtklot” at Clas Ohlson's light laboratory where color spectrum as well as various other information could be obtained, and with a hand-held spectrometer to see the flicker output from the lamp at different settings. The energy consumption was investigated regarding variation of color temperature, intensity and even in cases where separate control equipment was required. The three lighting systems were shown to have different advantages where eventually the Philips Hue Ambience White was selected to be installed in a bedroom in the project villa Dalarnas Villa. Based on a previous master thesis, a light schedule was developed that changes the intensity and color temperature of light to promote the circadian cycle. As the authors see this as an important topic, every opportunity to show the installed system has been taken. A great deal of interest has been shown during discussions including Dalarna´s energy advisers. ” Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity (WHO 1946). Health should be at the centre of all societal planning because social inequalities in health are costly to the society and counteract sustainable development (Malmö stad 2013). It is one of the main conditions for individual development opportunities through education, work, social relationships and participation in the society (UN 1949). Health is a key to the other human rights and also constitutes a separate right (WHO 2008).” Sustainability issues for SSL (R. Karlsson et al. 2016)
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Wawrzyniak, Anna. "A Light Booster metro car for the commuting work force : Human Centric Lighting in underground transportation." Thesis, KTH, Ljusdesign, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-242287.
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People at northern latitudes lack an effective portion of daylight, especially in winter time, to entrain their circadian rhythm. If one belongs to the group of employees who have no time for daylight exposure and are not supplied by Human Centric Lighting (HCL) in their office, the only chance to get circadian light may be the daily commute. The mega trend of urbanisation increases time of commute, with on average 20-60 minutes spent daily in public transportation in European cities. By introducing HCL to public transport, especially metro vehicles, this time frame can be used to provide the commuting work force with circadian lighting. A LIGHT BOOSTER metro car is proposed to provide the right intensity, spectral distribution, directionality and timing of light to regulate the human inner clock and support health. The LIGHT BOOSTER metro car is very efficient as light is best used due to a high person per square meter ratio. This ratio is higher than in any office building. The energy consumption equals that of an conventional single household. Besides expected health benefits, the LIGHT BOOSTER metro car works as an educative tool, raising awareness for the beneficial effects of light on human health and well-being.
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Svanberg, Mira. "The right light at the right time for bipolar patients. An exploratory study of light environments for patients with bipolar disease in behavioral health clinics." Thesis, KTH, Ljusdesign, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297963.
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Research has showed that different light scenarios have a profound effect on hospitalized bipolar patients. Different light situations decrease the hospital stay for patients during both manic and depressive episodes. Nevertheless, a field study carried out during this thesis work of two arbitrary patient rooms in Swedish behavioral health clinics showed no incorporation of this knowledge in the light design of the rooms. Both patient rooms had insufficient light levels both in terms of circadian recommendations and perceived brightness. Hence this thesis suggests an improved light design for patient rooms housing bipolar patients. The basis of the improved design is to incorporate a dynamic, circadian lighting that varies depending on the patient's need and diagnosed episode.
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Ahrenstedt, Irina. "Travelling Stockholm from underneath : A journey of light." Thesis, KTH, Ljusdesign, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214828.
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The report Stockholm city’s regional biking plan presents information of a continuously rising numbers ofcyclists in central Stockholm. However, the central parts of Stockholm have not now, or in the near future,the capacity or structure to provide a functional as well as safe traffic situation, especially for cyclists. Theincreasing demand from traffic of the commuter street network in central Stockholm make the 6 km longunderground maintenance tunnel along the newly build Citybanan commuter train tracks a possible andinteresting alternative for safe, fast and easy bicycle travelling underneath Stockholm. The tunnel stretchesfrom Fatbursparken to Tomteboda, with exits/entrances along the route in central parts of Stockholm[Fig 1.]There are several examples in the world where former car, train and maintenance tunnels are used as bikingtunnels. The longest existing example is the Croix Rousse tunnel in Lyon, France (2013). A 1,3 km longtunnel with separate lanes for cyclists, pedestrians and commuter busses, which also functions as anevacuation tunnel to the parallel car tunnel. Another example is the Lugaritz-Morland bicycle tunnel in thecity of San Sebastian, Spain (2009), which is a former railway tunnel (850 metres) that connects twoneighbourhoods in the city.The specific conditions a tunnel have with no daylight and limited access, give the lighting designer theimportant task to shape the space using light.Light is the factor that makes us see the world, our visual ability is depending on the light. Light has theability to reveal and transform the character of a space and influence how the observer experiences thesituation, both physically (by vision) and psychologically (emotional experiences as comfort and feeling ofsafety). Therefore a good visual condition in public space, traffic as well as enclosed spaces like tunnels, arevery important and a basic need for humans in the city.The aim with this thesis was to develop a lighting strategy and proposal for the maintenance tunnel ofCitybanan in Stockholm, based on literature and case studies research, a full-scale light observation by areference group in a tunnel context as well as research by questionnaires. The primary purpose of the fullscalelight study was to confirm literature research hypotheses about the importance of light distributionand experienced spatial atmosphere in relation to psychological effects, as well as the importance of lightgiving information. Findings confirm and shows that light distribution have a great impact on how theobservers experience the space visually, as well as emotionally. Findings also show that light can influencepeople’s behaviour to intuitively slow down or be alert. Further this thesis results show that giving a spaceit’s own identity by collaboration between light, colour and architectural elements have a great impact onthe psychological experiences of a space regarding safety, comfort and social interaction, crucial factors in atunnel environment for cyclists.The thesis results in a concept presented in the Proposal chapter, based on design principles and a lightingstrategy where a combination of light typologies is used to create a human centred and comfortableenvironment. Light is used as guiding element and for spatial understanding to create comfort and supportsocial interaction. In addition the concept includes a theme used as inspiration in the lighting strategy tocreate a connection on a human scale between the cyclist and the space. The theme is based on a commonpreference of the reference group, as well as my personal, for the ideal dream biking environment;In the nature. Experiencing for example the variation of light filtered through the leaves, the sunset and theabsence of traffic.The aim with the proposal is to transform the tunnel to an attractive bicycle route for daily cyclists inStockholm, as well as being an interesting tourist attraction.- A large underground landmark and art piece stretching under the city of Stockholm.
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Albé, Marta. "Images of light and emotions - a photographic research about individual and collective emotional sensibility towards lighting atmospheres." Thesis, KTH, Ljusdesign, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280053.
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How do we humans feel the light? Is there a correspondance between our inner feelings and emotions and the outer space that surrounds us? Are we aware/conscious of it? Which personal meanings-values and emotions arise in us and how we consequently link them to a certain light-environment Atmosphere (indoor and outdoor) lit by natural or artificial light? Driven by these questions, this thesis will investigate via a visual qualitative experiment driven among photography amateurs, how their emotional sensibility is deeply bonded with light and how this emotional atmosphere is felt and portrayed throughout the day. A collection of two pictures per day, for one week, in the morning and in the evening will be firstly analyzed under the lens of each singular participant’s emotional sensibility, and then collectively grouped into common lighting Atmospheres. The wide and colorful spectrum of the possible combinations between light and emotions investigated in this research shows the richness and the complexity of the human sensibility towards light, and raise awareness in consider these intangible human factors as essential in the lighting process.
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Hällvall, Joakim, and Sebastian Gill. "Redovisning av CRI hos Tunable White-armaturer : En undersökning av armaturtillverkares specifikation av Tunable white-armaturer." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik och belysningsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40916.
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Tunable white-armaturer utgör idag en stor del av marknaden och förväntas öka ytterligare under de kommande åren. Då många leverantörer idag producerar och marknadsför sina egna lösningar för att skapa ett dynamiskt ljus kan det vara svårt att veta vilken standard dessa lösningar håller och hur väl den tekniska specifikationen stämmer överens med verkligheten. Syftet med denna studie har varit att undersöka om informationen mot beställare är tillräcklig samt om den redovisade data av Tunable White-armaturer är korrekt. Studien bygger på två delar. En experimentell undersökning genomfördes där fem tunable white-armaturers CRI (färgåtergivning) mättes mellan olika CCT-nivåer (färgtemperatur) och sedan jämfördes det med vad leverantörer har specificerat på deras hemsidor. En enkätundersökning genomfördes sedan som riktades mot 144 ljusdesigners i Sverige, varav 52 valde att besvara enkäten. Frågorna berörde redovisning av Tunable white-armaturer samt vikten av en god ljuskvalitet med inriktning på CRI. Resultaten från författarnas experimentella undersökning visar att alla tunable white-armaturer som testades skiftar i CRI under olika färgtemperaturintervaller. Den största skillnaden som mättes var på fabrikat 3 där det skiftade 9 CRI mellan 2700K-6000K. En jämförelse kunde sedan göras och visade att två av fem leverantörers specifikationer inte stämmer överens med vad som redovisats i respektive produktdatablad. Av att tyda svaren från enkätundersökningen kunde slutsatsen dras att det finns mycket skilda åsikter angående de tekniska specifikationerna gällande tunable white-armaturer. En del ansåg att det redovisas tillräckligt väl idag medan andra ansåg att det inte redovisas tillräckligt väl. Majoriteten ansåg att det är mycket viktigt med en god CRI när man föreskriver tunable white-armaturer i sina projekt. Man kunde också se att många ljusdesigners önskade att man redovisade färgåtergivning i TM-30-15 istället för CRI-metoden eller att man bör redovisa i givna färgtemperaturer. Det som kan fastställas av denna studie är att det finns en tendens till att vissa armaturleverantörer har sämre CRI än vad företaget i fråga redovisat. Denna studie enbart mätt TW-armaturer från fem företag verksamma i Sverige samt endast vid 100% ljusflöde. Författarna anser dock att denna studie kan leda till en diskussion om bättre redovisning av tunable white-armaturer behövs, samt ge läsaren en ökad förståelse för komplexiteten inom området.Tunable white luminaires today form a large part of the market and are expected to increase further in the upcoming years. As many manufacturers today produce and market their own solutions to create a dynamic light, it can be hard to know what quality these solutions have and how well the technical specification is. The purpose of this study were to investigate whether the information to the user is sufficient and whether the presented data of tunable white luminaires is correct. This study is based on two parts. An experimental study where five tunable white luminaires CRI (color rendering) were measured between different CCT levels (color temperature) and then compared these to what providers have specified on their websites. The second part was a survey was conducted to 144 lighting designers based in Sweden, 52 of whom chose to answer the questionnaire. The questions concerned the presented information of tunable white luminaires as well as the importance of a good light quality focusing on CRI. The results from the authors experimental survey showed that all tunable white luminaires that where tested are changing in CRI under different color temperature intervals. The biggest difference that was measured was on manufacturer 3 where 9 CRI shifted between 2700K-6000K. A comparison could be made and showed that two of five of the suppliers specifications did not match with the authors measurements. By analyzing the answers from the survey, some conclusions could be drawn. There were very different opinions regarding the technical specifications of tunable white luminaires. Some felt that it is enough as it is today, while others felt that more information was needed. The majority considered it very important to have a good CRI when selecting tunable white luminaires in their projects. One could also see that many lighting designers wanted to present color reproduction in TM-30-15 instead of the CRI method or to present CRI at given color temperatures. What can be determined by this study is that there is a tendency for some luminaire suppliers to have worse CRI than presented. This study only measured tunable white fixtures from five companies operating in Sweden and only at 100% luminosity. However, the authors consider that this study could lead to a discussion about better specifications for tunable white luminaires, as well as giving the reader an increased understanding of the complexity of the subject.
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Rupp, Ariana Isabel Kenéz Salavessa. "Design sistémico de luz natural e artificial : iluminação para o idoso institucionalizado." Master's thesis, 2014. http://hdl.handle.net/10400.5/7947.
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Dissertação para obtenção do grau de Mestre em Design de Produto, apresentada na Universidade de Lisboa - Faculdade de Arquitetura.O aumento da expectativa de vida e a desintegração das estruturas familiares tradicionais nas sociedades ocidentais tornou a institucionalização inexorável para muitos idosos. O envelhecimento crescente da população tem suscitado a multiplicação de equipamentos destinados a este grupo etário com necessidades muito diversificadas, quer por razões culturais, quer por causa da sua condição de saúde, psíquica e física. Em Portugal, parte significativa das infra-estruturas existentes não foram projectadas de raiz para o propósito social que se propõem cumprir, pelo que não tiram o devido partido da luz natural e sobreutilizam a iluminação artificial de baixo custo. Porém, a luz natural e artificial tem um impacto muito significativo na qualidade de vida e, em particular, dos idosos institucionalizados, ao que a iluminação actual tem efeitos desfavoráveis sobre a saúde e o bem-estar dos residentes e dos seus cuidadores. Esta investigação identifica as necessidades diárias dos utentes destes equipamentos e apresenta um elenco de especificações para o desenvolvimento de sistemas de iluminação que sejam centrados nos utilizadores, sustentáveis e adequados à intervenção luminoterapêutica, nomeadamente à regulação do ritmo circadiano e à manutenção da integridade física e neuropsicológica. A metodologia empregue nesta investigação teórico-prática é mista, de base qualitativa e não-intervencionista. Dada a existência de muita informação dispersa e multidisciplinar, constituiu-se um enquadramento teórico rigoroso e uma pesquisa de benchmarking sobre produtos, materiais e tecnologias com um elevado potencial de inovação para esta área investigativa. Em paralelo à revisão da literatura, estabeleceram-se contactos com várias instituições sociais de acolhimento temporário e permanente de idosos, o que permitiu a observação empírica de um fragmento da realidade nacional e a selecção e análise de três casos de estudo. Realizaram-se, ainda, inquéritos apoiados por questionário a profissionais e cuidadores formais de lares diferentes, assim como uma entrevista exploratória a um especialista, presidente da Associação dos Amigos da Grande Idade – Inovação e Desenvolvimento e coordenador de um lar de idosos.Assim, para além da sistematização e tratamento de informação dispersa, os resultados desta investigação incluem recomendações e especificações técnicas para o desenvolvimento projectual na área do design de iluminação para idosos institucionalizados, contribuindo para a promoção da coesão da família institucional e da humanização da prestação de cuidados, tornando a palavra "lar" não uma designação genérica e esvaziada de significado, mas um substantivo que designa um ambiente protegido e acolhedor.
ABSTRACT: Institutionalization has become inevitable for many seniors because of the breakdown of traditional family structures and extended life expectancy in Western societies. Increasing ageing population boosts the multiplication of facilities aimed at this age group, which has very diverse needs, either for cultural reasons or because of their mental and physical health condition. In Portugal, a significant part of the settings was not designed from scratch for its social purpose, and does not take proper advantage of natural light, overusing low-cost artificial lighting instead. However, natural and artificial light has a very significant impact on quality of life and, in particular, of institutionalized elderly, so we can foresee the adverse effects of actual lighting on health and well-being of the residents and their caregivers. This research identifies the users’ needs of facilities for the elderly. It features a cast of specifications for the development of sustainable user-focused lighting systems that are suitable for light therapy intervention, namely the regulation of circadian rhythm and the maintenance of physical and neuropsychological integrity. The methodology employed in this theoretical-practical research has a mixed, qualitative and non-interventionist basis. In order to organize the widely dispersed and multidisciplinary extant information, we established a rigorous theoretical framework and conducted a benchmark study on innovative products, materials and technologies with significant potential for this research area. Apart from literature review, we contacted several social institutions of permanent and short-term care for the elderly, which gave us the opportunity to examine a fragment of Portuguese reality, select and analyze three case studies. We also did questionnaire surveys to professionals and formal caregivers from different nursing homes, and interviewed an expert, coordinator of a nursing home and president of the Associação dos Amigos da Grande Idade – Inovação e Desenvolvimento (Friends of the Grand Age Association – Innovation and Development). Thus, beyond systematizing and processing existing and newly acquired knowledge, research results include recommendations and technical specifications for project development in the area of lighting design for institutionalized elderly. By doing so, we intend to help promoting institutional cohesion and humanized care, bringing a new meaning to generic words such as "home": the promise of a safe and welcoming environment.
Books on the topic "Human centric light"
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Hunt, Luke William. Confidential Human Sources and Unconscionability. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190904999.003.0005.
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Chapter 4 begins the applied part of the book by examining modern law enforcement tactics in light of the theoretical framework from the prior chapters. The chapter explores the extent to which agreements between the police and informants track the structure of legal contracts. The central argument is that the underlying normative principles of the legal doctrine of unconscionability provide weight in determining whether these agreements are justified. In the cases in question, the state leverages its bargaining power over a person to facilitate an agreement in which the person acts in a way that is (otherwise) illegal, as well as in a way that subjects the person to the risk of harm. If these sorts of interactions are unconscionable in the sense that they constitute an affront to liberal principles—including liberal personhood—then they cannot be construed as just even if they achieve a competing state end.
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Nassar, Dalia. Understanding as Explanation. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198779650.003.0007.
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The animal-human boundary was central to the revolt against mechanism over the course of the eighteenth century: if humans were not machines, then neither were animals. But then, what were they? And how could they be explained? Hermann Samuel Reimarus embraced the view that only a supernatural recourse was possible. By contrast, Herder sought to naturalize the issue. His treatise on language is usually seen as a dispute with Süßmilch, rejecting the idea of a divine origin of human language, and, with Condillac, denying continuity with mere animal sounds. What needs to be brought to light is the central role of his engagement with Reimarus and the theory of animal instinct. It is this third interlocutor who brought out what was most distinctive in Herder’s naturalistic theory of the origin of human language, by drawing a new conception of the animal-human boundary.
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Heßler, Martina, and Kevin Liggieri, eds. Technikanthropologie. Nomos Verlagsgesellschaft mbH & Co. KG, 2020. http://dx.doi.org/10.5771/9783845287959.
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This handbook provides an overview of approaches to, and methods and topics on a historical anthropology of technology. This includes basic concepts, the variety of human technical concepts, technicised practices and the technicisation of senses and skills. Furthermore, it presents important representatives of an anthropology of technology since the early modern period. With its interdisciplinary approach, this volume historically and systematically approaches various problems relating to humans and machines that are currently being debated. At the centre of attention is the quintessential anthropological question of what a ‘human being’ is with respect to technology. However, this consideration does not derive from the concept of a unique, unchanging essence of man, but examines the historical changes of man through and with technology. Particularly in light of new technologies such as digitisation and artificial intelligence research, the relationship between humans and machines is once again on the agenda, in which humans and humanity seem to be the subject of discussion.
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Gatta, John. The Place of Imagination. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190646547.003.0004.
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“Imagination,” a word evidently central to the vocation and sensibility of English Romantic poets, is likewise invoked often as a defining term in American literary history. But what are the theological implications of this crucial category, beginning with Coleridge’s seminal statements about it? How might the human faculty of imagination—often but doubtfully associated with an abstractly ethereal quality of mind—bear upon concrete facts of the world humans experience? And how, in the light of philosophic perspectives, together with Wendell Berry’s provocative reflections on “imagination in place,” might Imagination be understood as integral with the phenomenology of place? Such questions are addressed here by means of themes bearing on the Earthiness of Imagination, the Contemplative Reach of Imagination, and Numinous Layers of Place as Palimpsest. Literary texts analyzed to develop these themes include Whitman’s verse and works by two contemporary writers—poet Marilyn Nelson and novelist Alfred Véa.
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Randall, Maya Hertig. The History of the Covenants. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198825890.003.0002.
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Translating the UDHR into a binding treaty ‘with teeth’ was an acid test for the international community. This chapter places the genesis of the ICESCR and the ICCPR in its political context. It highlights the interlocking challenges of the Cold War and of decolonization and also underscores disagreement among allied nations as well as attempts to ‘export’ the domestic conception of human rights. Three issues central to completing the International Bill of Human Rights are analysed: (1) identification of the rights to be included; (2) States’ obligations to give effect to human rights on the domestic level; and (3) international supervision mechanisms. These issues are closely related to the decision to divide human rights into two Covenants. In tracing the major controversies and decisions reached, light is also cast on the relationship and characteristics of civil and political rights and economic, social, and cultural rights, as understood at the time.
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Perdue, Peter C. Owen Lattimore. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780199935369.013.26.
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The American scholar, traveler, political adviser, and public intellectual Owen Lattimore strongly shaped American public opinion toward China and Central Eurasia in the twentieth century, but he also wrote major works on the geography and environment of the frontiers of Asia that still influence global historians today. His writings asserted the vital importance of China’s relationship with the nomads of the steppe, including the Mongols, for defining the boundaries, cultures, and geopolitical strategy of empires and nation states. He argued for sophisticated explanations of relationships between environmental forces like climate and human culture, and he analyzed China and Central Eurasia so as to provide new perspectives on world history. This article evaluates Lattimore’s contributions to world history in the light of his dynamic political and academic life.
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Gosden, Chris. Prehistory: A Very Short Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198803515.001.0001.
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Prehistory covers the period of some four million years before the start of written history, when our earliest ancestors, the Australopithecines, existed in Africa. Prehistory: A Very Short Introduction invites us to think about who we are by considering who we have been. There have been many archaeological discoveries over the last ten years, with a new framework for prehistory emerging. Greater understanding of Chinese and central Asian prehistory shows Eurasian prehistory in a different light, changing the traditional view of human progress around the invention of agriculture and development of cities. This VSI explores the new landscape of our prehistory, considering the way the different geographical locations weave together.
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Hertel, Shareen. Tethered Fates. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190903831.001.0001.
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Global supply chains extend throughout the developing world, but we know surprisingly little about company–community interaction. This book engages multiple sources of data to map the evolution and contemporary scope of “stakeholder dialogue” in the business and human rights arena. It draws on the 7,000-company database of the Business and Human Rights Resource Centre, and on original interviews with community members in two factory towns in the Dominican Republic, to illustrate economic rights challenges in light manufacturing communities. Tethered Fates maps trends in stakeholder dialogue by region and industry sector globally. It demonstrates that companies tend to engage stakeholders in sectors where the sunk costs are high (such as the extractive sector) rather than in sectors where the threat of exit looms large (such as light manufacturing). The book then offers a view into local community members’ perceptions of the prospects for dialogue with companies and the challenges of everyday life, through comparative case studies of two textile manufacturing towns in the Dominican Republic. Tethered Fates does more than simply explain why stakeholder dialogue often falls short as a vehicle for safeguarding economic rights and promoting community development; it also offers an assessment of the varieties of emerging policy alternatives for moving beyond the current state of practice.
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Risse, Mathias, and Gabriel Wollner. On Trade Justice. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198837411.001.0001.
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Trade has made the world. Still, trade remains an elusive and profoundly difficult area for philosophical thought. This account of trade justice stresses the role of exploitation, emphasizing philosophical ideas about global justice but also contributing to moral disputes about practical questions. The book is a philosophical plea for a new global deal, in continuation of, but also at appropriate distance to, postwar efforts to design a fair global-governance system in the spirit of the American New Deal of the 1930s. It is written in the tradition of contemporary analytical philosophy but also puts its subject into a historical perspective. The book covers the subject of trade justice, from its theoretical foundations to several specific issues on which this book throws light. The state as an actor in the domain of global justice is central to the discussion but the book also explores the obligations of business extensively, recognizing the importance of the modern corporation for trade. So, topics such as wages injustice, collusion with authoritarian regimes, relocation decisions, and obligations arising from interaction with suppliers and sub-contractors all enter prominently. Another central actor in the domain of trade is the World Trade Organization. The WTO needs to see itself as an agent of justice. This book explores how this organization should be reformed in light of proposals made herein. In particular, the WTO needs to endorse a human-rights and development-oriented mandate. Overall, the book hopes to make a theoretical contribution to the creation of an exploitation-free world.
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Nisenbaum, Karin. For the Love of Metaphysics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190680640.001.0001.
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In his Critique of Pure Reason, Kant argued that human reason is inherently conflicted, because it demands a form of unconditioned knowledge that transcends its capacity; his solution to this conflict of reason relies on the idea that reason’s quest for the unconditioned can only be realized practically. This book proposes to view the conflict of reason, and Kant’s solution to this conflict, as the central problem shaping the contours of post-Kantian German Idealism. I contend that the rise and fall of German Idealism is to be told as a story about the different interpretations, appropriations, and radicalization of Kant’s prioritizing of the practical. The first part of the book explains why Kant’s critics and followers came to understand the aim of Kant’s critical philosophy in light of the conflict of reason. I argue that F. H. Jacobi and Salomon Maimon set the stage for the reception of Kant’s critical philosophy by conceiving its aim in terms of meeting reason’s demand for unconditioned knowledge, and by understanding the conflict of reason as a conflict between thinking and acting, or knowing and willing. The manner in which the post-Kantian German Idealists radicalized Kant’s prioritizing of the practical is the central topic of the second part of the book, which focuses on works by J. G. Fichte and F. W. J. Schelling. The third part of the book clarifies why, in order to solve the conflict of reason, Schelling and Rosenzweig developed the view that human experience is grounded in three irreducible elements—God, the natural world, and human beings—which relate in three temporal dimensions: Creation, Revelation, and Redemption.
Book chapters on the topic "Human centric light"
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Wolska, Agnieszka, Dariusz Sawicki, and Małgorzata Tafil-Klawe. "Human-Centric/Integrative Lighting Design." In Visual and Non-Visual Effects of Light, 141–52. First edition. | Boca Raton, FL : CRC Press, 2020. |: CRC Press, 2020. http://dx.doi.org/10.1201/9781003027249-9.
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Plischke, Herbert. "Präventive Umgebungsgestaltung mit Licht – Human Centric Lighting." In Alter und Prävention, 201–19. Wiesbaden: Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-11991-1_9.
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Siegel, John, and Isabella Proeller. "Human Resource Management in German Public Administration." In Public Administration in Germany, 375–91. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-53697-8_21.
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AbstractHuman resource management (HRM) reform has not been the focus of attention in Germany despite its obvious relevance for effective policy implementation. Although there is a general trend worldwide towards convergence between public and private HRM strategies and practices, management of the workforce in German public administration still remains largely traditional and bureaucratic. This chapter describes and analyses German practices regarding the central functions and elements of HRM such as planning, recruitment, training and leadership. Furthermore, it explores the importance and contribution of public service motivation, performance-related pay and diversity management in the context of German practices. The chapter concludes by highlighting some of the major paradoxes of German public HRM in light of current challenges, such as demographic change, digital transformation and organisational development capabilities.
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Mahieu, Rilke. "Diaspora Policies, Consular Services and Social Protection for Moroccan Citizens Abroad." In IMISCOE Research Series, 231–46. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51237-8_13.
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AbstractThis chapter sheds light on the ways in which Morocco, country of origin of a five million expatriate population centered in Europe, promotes the social protection of its expatriate citizens. Within Moroccan diaspora policies, which are long-standing, extensive and promoted by a range of diaspora institutions, the social protection of nationals abroad does not take a central position. Rather, Moroccan diaspora policies prioritize the mobilization of expatriate human and financial capital for Moroccan development interests. However, a number of initiatives have been taken to facilitate non-resident citizens’ access to social rights, such as the conclusion of bilateral conventions with major destination countries and the creation of social programs by Moroccan diaspora institutions.
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Eide, Øyvind, and Zoe Schubert. "Seeing the Landscape Through Textual and Graphical Media Products." In Beyond Media Borders, Volume 2, 175–209. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49683-8_7.
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Abstract Space is a central element in human communication. In this chapter, the authors compare representations of landscapes in different media types, including texts, maps, and virtual reality to show how they express spatial conceptions. Such a comparison is necessary to understand the mechanisms behind combinations and transformations among different media; hence, it forms a useful basis for analysing media interacting with spaces more generally. Taking a step back, the authors then discuss how the materiality and concreteness of space interact with the abstract conceptual level of models. This makes it possible to study traditional two-dimensional maps and texts as well as three-dimensional modelling and virtual reality systems. Finally, the authors introduce virtual reality as a new media form in the light of empirical experiments conducted at the University of Cologne.
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"Human Centric Lighting and Color Quality." In Color Quality of Semiconductor and Conventional Light Sources, 335–55. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527803453.ch9.
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Berrell, Mike. "The Social Relations of Anywhere Working." In Advances in Human Resources Management and Organizational Development, 22–46. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2328-4.ch002.
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The idea of anywhere working provides opportunities to utilize non-traditional work spaces and new employment relationships. However, the new employment relationships ensuing from the work practice have implications for both employees and employers. While thinking about the nature of anywhere working tends to focus on macro-level issues and micro-level practices, the social relations of anywhere working is a peripheral concern. This chapter reviews some of the images and meanings attached to work through the ages. Subsequently, the dominant ideas in the anywhere working literature emerge as employee centric, employer centric and technology centric themes. The notion of a sociological paradigm frames the discussion and analysis of anywhere working in its broadest context. Given its rapid spread, anywhere working may be represented as a watershed in employment relations and work practices. In this light, new ways of thinking about the social relations and the nature of work itself are required.
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Al-Shammari, Minwir. "Reorganizing People in Customer Knowledge Management Change." In Human Development and Global Advancements through Information Communication Technologies, 49–62. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-497-4.ch004.
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The transition to knowledge-intensive customer-centric enterprise is important, but never easy. Reorganizing people is likely to face critical structural and cultural change issues related to people. Addressing these issues is essential for the continued success of customer-value-building services and products. In light of today’s competitive business environments and changing power of customers, organizations need to be able to deal with people-based issues in order to secure high quality customer service and long-life and profitable customer relationship. The chapter presents a recommended solution to deal with people change management in competitive business environments, viz. to ‘reorganize people’ in a customer-centric networked organization. ‘Reorganization of people’ is operationally defined by three sub-interventions: a) reconfiguring structure, b) reshaping culture, and c) rehabilitating people.
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Papatsimpa, C., and Jean-Paul Linnartz. "Personalized Circadian Light: A Digital Siblings Approach." In Intelligent Environments 2021. IOS Press, 2021. http://dx.doi.org/10.3233/aise210082.
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In this paper, we introduce a human-centric lighting control system optimized to support sleep and circadian coordination. We present an approach to optimize lighting that combines a “digital siblings” approach, i.e., a stochastic extension of a digital twin. It estimates and optimizes parameters in experimentally validated models of circadian and sleep regulation with a novel optimization algorithm for optimal timing of light exposure. We acknowledge that people have varying preferences for the lighting levels throughout the day based on their personal preferences and schedules and explicitly include this as a key parameter in our optimization strategy. Our results show that with the suggested lighting schedules, alignment of circadian rhythmicity to the desired sleep-wake schedule can be achieved with minimal disruption to people’s daily lives.
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Seyla, Benhabib, and Nathwani Nishin. "Part I International Refugee Law— Reflections on the Scholarly Field, Ch.6 The Ethics of International Refugee Protection." In The Oxford Handbook of International Refugee Law. Oxford University Press, 2021. http://dx.doi.org/10.1093/law/9780198848639.003.0007.
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The ethics of international refugee protection reflect the dual normative principles of state sovereignty and recognition of refugees’ international human rights which characterize the contemporary refugee regime since the 1951 Refugee Convention and its 1967 Protocol. This contribution identifies three major positions, each of which acknowledges these dual foundations while seeking to balance, synthesize, or transcend them. These positions are: liberal nationalism, which prioritizes state sovereignty and the rights of bounded political communities to protect their own culture and territory; liberal internationalism, which recognizes that state sovereignty is embedded in a system of international duties and prerogatives; and, cosmopolitanism, which seeks to transcend ‘ontology of containment’ characterizing both positions by acknowledging the radical interdependence of peoples and the fluidity of their movement across boundaries. The cosmopolitan position is further divided into agency-centric views, power-centric views, and the post-colonial perspective. The article concludes by defending jurisgenerativity and democratic iterations as political processes through which law’s normative promise and its imbrication in systems of power and domination can be brought to light and resignified to reflect the dignity and subjectivity of refugees and not merely their protection.
Conference papers on the topic "Human centric light"
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Tsesmelis, Theodore, Irtiza Hasan, Marco Cristani, Alessio Del Bue, and Fabio Galasso. "Human-Centric Light Sensing and Estimation From RGBD Images: The Invisible Light Switch." In 2019 IEEE Winter Conference on Applications of Computer Vision (WACV). IEEE, 2019. http://dx.doi.org/10.1109/wacv.2019.00050.
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Sun, Ye, and Zhen Liu. "Human-Centric LED Lighting System Using Ubiquitous Physiological Monitoring." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47530.
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The aging population, prevalence of chronic diseases, and depression are some of the major challenges of current healthcare. The smart home monitoring provides a solution of human-centric out-of-hospital care and calls for more attention to improve the comfort of patients. Among home technologies, electric lighting system is ubiquitous and affecting many aspects of human physiology, including not only visual system but also non-image-forming system. The exposure to light can influence various states of human and lead to effective comforting. This paper presents a human-centric smart lighting system controlled by human state using ubiquitous physiological sensor networks. The proposed system, acting as an intelligent home monitoring component, can naturalistically detect human’s state such as intensiveness, sleepiness, and depression. Vital signals including ECG and its secondary parameters can be acquired by non-intrusive physiological sensors and wirelessly transmitted to a control system. The color of LED can be controlled by the detected human state and adjusted to emotional comfort. The results show that different colors of light can influence human’s state.
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Langer, G. G., and N. T. Launert. "Lighting Future Naval Ships – Mission Optimized and Human Centric." In International Ship Control Systems Symposium. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2631-8741.2018.022.
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Progress in lighting technology comes in waves: As the LED is emerging as the winner from the current wave, the digital transformation is pushing the limits of technical possibilities of lighting once more, as it gives access to more degrees of freedom in lighting. Advances over the last decade have significantly expanded the scope of lighting technology: ‘Intelligent Lighting’ yields several new opportunities. Through the advantageous properties of LEDs electric light will be a carrier for optical wireless communication. It finally will provide its users the lost qualities of a natural dynamic light environment as a surrogate of sunlight with all its stimulating effects, thus a ‘Human Centric Lighting’ addressing the biological needs of a ship’s crew with limited access to daylight, increasing their well-being, health and performance on the job.
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Galabov, Bozhidar. "Control of Human Centric Lighting systems considering the natural and artificial light mix." In 2020 12th Electrical Engineering Faculty Conference (BulEF). IEEE, 2020. http://dx.doi.org/10.1109/bulef51036.2020.9326051.
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Trivellin, Nicola, Matteo Meneghini, Marco Ferretti, Diego Barbisan, Matteo Dal Lago, Gaudenzio Meneghesso, and Enrico Zanoni. "Effects and exploitation of tunable white light for circadian rhythm and human-centric lighting." In 2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI). IEEE, 2015. http://dx.doi.org/10.1109/rtsi.2015.7325089.
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Chagas, Bruno A., David F. Redmiles, and Clarisse S. de Souza. "End-user development for the Internet of Things OR How can a (smart) light bulb be so complicated?" In 2017 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC). IEEE, 2017. http://dx.doi.org/10.1109/vlhcc.2017.8103478.
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Yahia, Selma, Yassine Meraihi, Asma Benmessaoud Gabis, and Amar Ramdane-Cherif. "Multi-Directional Vehicle-To-Vehicle Visible Light Communication With Angular Diversity Technology." In 2020 2nd International Workshop on Human-Centric Smart Environments for Health and Well-being (IHSH). IEEE, 2021. http://dx.doi.org/10.1109/ihsh51661.2021.9378711.
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Nikolova, Kamelia, Iva Petrinska, Dilyan Ivanov, and Dimitar Pavlov. "Investigation of the Photobiological Risk from Blue Light of a Human-Centric Lighting System - Case Study." In 2019 11th Electrical Engineering Faculty Conference (BulEF). IEEE, 2019. http://dx.doi.org/10.1109/bulef48056.2019.9030789.
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Goodell, Matthew N., Takara E. Truong, Stephanie R. Marston, Brett J. Smiley, Elliot R. Befus, Alex Bingham, Kent Allen, et al. "Autonomous Light Assessment Drone for Dark Skies Studies." In ASME 2020 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dscc2020-3205.
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Abstract The improper use of artificial light causing skyglow is detrimental to many types of wildlife and can potentially cause irregular human sleeping patterns. Studies have been performed to analyze light pollution on a global scale. However, light pollution data on a local scale is not of ten available and the effects at local scale have rarely been studied. Herein, a new custom-designed autonomous light assessment drone (ALAD) is described for evaluating light pollution at local scale. The ALAD is designed and equipped with a sky quality meter (SQM) to measure skyglow and a low-cost illuminance sensor to measure light from artificial sources. Outdoor field tests are performed at a remote site in central Utah and the measured results are validated against data from lightpollution-map.info. The SQM measurements are in agreement with the estimates from the light pollution map, and the initial results demonstrate feasibility of the ALAD for local-scale skyglow assessment.
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Fujii, Hiroyuki, Yukio Yamada, Yoko Hoshi, Kazumichi Kobayashi, and Masao Watanabe. "Numerical errors of light propagation in the two-dimensional human neck model using the time-dependent radiative transfer equation with renormalized phase functions." In CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2019 (CEST). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5114504.
Full textReports on the topic "Human centric light"
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Douglas, Thomas A., Christopher A. Hiemstra, Stephanie P. Saari, Kevin L. Bjella, Seth W. Campbell, M. Torre Jorgenson, Dana R. N. Brown, and Anna K. Liljedahl. Degrading Permafrost Mapped with Electrical Resistivity Tomography, Airborne Imagery and LiDAR, and Seasonal Thaw Measurements. U.S. Army Engineer Research and Development Center, July 2021. http://dx.doi.org/10.21079/11681/41185.
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Accurate identification of the relationships between permafrost extent and landscape patterns helps develop airborne geophysical or remote sensing tools to map permafrost in remote locations or across large areas. These tools are particularly applicable in discontinuous permafrost where climate warming or disturbances such as human development or fire can lead to rapid permafrost degradation. We linked field-based geophysical, point-scale, and imagery surveying measurements to map permafrost at five fire scars on the Tanana Flats in central Alaska. Ground-based elevation surveys, seasonal thaw-depth profiles, and electrical resistivity tomography (ERT) measurements were combined with airborne imagery and light detection and ranging (LiDAR) to identify relationships between permafrost geomorphology and elapsed time since fire disturbance. ERT was a robust technique for mapping the presence or absence of permafrost because of the marked difference in resistivity values for frozen versus unfrozen material. There was no clear relationship between elapsed time since fire and permafrost extent at our sites. The transition zone boundaries between permafrost soils and unfrozen soils in the collapse-scar bogs at our sites had complex and unpredictable morphologies, suggesting attempts to quantify the presence or absence of permafrost using aerial measurements alone could lead to incomplete results. The results from our study indicated limitations in being able to apply airborne surveying measurements at the landscape scale toward accurately estimating permafrost extent.