Academic literature on the topic 'Obtrusive light'

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Journal articles on the topic "Obtrusive light"

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Iizuka, Tetsuei. "Obtrusive light." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 80, no. 10 (1996): 733–35. http://dx.doi.org/10.2150/jieij1980.80.10_733.

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Ichijou, Takashi. "Research Committee for Obtrusive Light." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 80, no. 10 (1996): 728–29. http://dx.doi.org/10.2150/jieij1980.80.10_728.

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Żagan, Wojciech. "Opinion: Obtrusive light and floodlighting." Lighting Research & Technology 47, no. 6 (August 21, 2015): 640. http://dx.doi.org/10.1177/1477153515602202.

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Chikada, Reiko, and Chiaki Murazumi. "Obtrusive light influences rosearch along route 2, Okayama." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 80, no. 10 (1996): 754–55. http://dx.doi.org/10.2150/jieij1980.80.10_754.

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Wei, Minchen (Tommy). "Opinion: Consider colorimetric quantities when evaluating obtrusive light." Lighting Research & Technology 49, no. 1 (January 6, 2017): 4. http://dx.doi.org/10.1177/1477153516687188.

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FLIMEL, Ing Marián. "New Approaches to Obtrusive Light Evaluation inside the Interiors." Journal of Light & Visual Environment 31, no. 3 (2007): 141–45. http://dx.doi.org/10.2150/jlve.31.141.

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Kawakami, K., and T. Iizuka. "Optical properties of street lighting luminares for the control of obtrusive light." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 81, Appendix (1997): 291–92. http://dx.doi.org/10.2150/jieij1980.81.appendix_291.

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Sekiguchi, Mikihito, Hajime Echigo, and Susumu Matsushita. "Development of street lighting fixtures for reducing the obtrusive light." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 82, Appendix (1998): 96. http://dx.doi.org/10.2150/jieij1980.82.appendix_96.

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Jägerbrand, AK, D. Gasparovsky, CA Bouroussis, LJM Schlangen, S. Lau, and M. Donners. "Correspondence: Obtrusive light, light pollution and sky glow: Areas for research, development and standardisation." Lighting Research & Technology 54, no. 2 (April 2022): 191–94. http://dx.doi.org/10.1177/14771535211040973.

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Ntoutsos, G., L. T. Doulos, S. Zerefos, A. Papalambrou, and T. Balafoutis. "Light pollution and sports lighting in dense urban areas: Early results in a case study of a stadium." IOP Conference Series: Earth and Environmental Science 899, no. 1 (November 1, 2021): 012038. http://dx.doi.org/10.1088/1755-1315/899/1/012038.

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Abstract The use of municipal football fields by a large number of citizens and amateur athletes on a daily basis during evenings is a popular activity. Usually, the aiming of the pitch lighting, without taking into account the dense urban environment in the surroundings, causes light pollution. Obtrusive lighting in most cases is the rule and not the exception. This situation could be justified in football fields of the professional football leagues so as to address the needs of television broadcasts of the matches for two days per month per field. However, in amateur activities due to the lack of rules and the initial incorrect lighting design, the problem of light pollution is deteriorated. The scope of this research is to identify the main issue and the repercussions of obtrusive lighting in the urban fabric, propose a quick method to quantify light pollution in sport fields using IDA-Criteria for Community-Friendly Outdoor Sports Lighting guidelines and to further set some parameters for a method using more calculating surfaces.
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Dissertations / Theses on the topic "Obtrusive light"

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Shotbolt, Timothy. "Unwanted lighting effects at night in Australia." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/94241/1/Timothy_Shotbolt_Thesis.pdf.

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This thesis brings together different scientific and engineering disciplines, as well as current legislation, on the subject of unwanted night-time lighting effects on humans and the biosphere. The assessment criteria of Australian Standard AS4282-1997 Control of the obtrusive effects of outdoor lighting are reviewed and criteria incorporating the quantity, quality, spectral composition of light, and exposure time, are proposed to improve light engineering practice. The immediate direct concerns of humans are considered as well as the effects on biota generally in the environment, particularly as outdoor artificial lighting proliferation has the potential to change the environment for human habitation in the longer term.
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Novák, Filip. "Využití jasového analyzátoru pro kvantifikaci umělého světla v nočním prostředí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442543.

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This diploma thesis deals with obtrusive light and its measurement, especially with the help of luminance analyzers. In particular, the necessary theoretical basis for the design of a measuring methodology for obtrusive light or veil brightness of the sky is laid here. This mainly includes the division of obtrusive light and its manifestations, a description of the effects of obtrusive light on the environment, selected organisms and the human body. Also described herein are the biological mechanisms of the human body that are affected by light as such. Attention is also paid to streetlights, its classification and methods of reducing obtrusive light, as well as methods of measuring brightness and brightness analyzers. Last but not least, the night sky is also measured using the LumiDISP luminance analyzer and subsequent data are evaluated using the proposed method.
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Books on the topic "Obtrusive light"

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IESNA Roadway Lighting Committee. Obtrusive Light Subcommittee., ed. IESNA technical memorandum addressing obtrusive light (Urban sky glow and light trespass) in conjunctions with roadway lighting. New York, NY: Illuminating Engineering Society of North America, 2000.

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L'Eclairage, Commission Internationale de. CIE 150 : 2003: Guide on the limitation of the effects of obtrusive light from outdoor lighting installations. Commission Internationale de L'Eclairage, 2003.

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Book chapters on the topic "Obtrusive light"

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"Obtrusive Space Advertising and Astronomical Research." In Light Pollution: The Global View, 277–86. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0125-9_24.

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Mali, Amol D. "Recent Advances in Minimally-Obtrusive Monitoring of People's Health." In Virtual and Mobile Healthcare, 593–606. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9863-3.ch029.

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Monitoring people's health is useful for enhancing the care provided to them by others or self-management of health. This article is a survey of the latest research on monitoring parameters indicating a person's current health or having potential to affect the person's health in future, using various physical sensors. These sensors include accelerometers, gyroscopes, electromyography sensors, fiber optic sensors, textile electrodes, thermistors, infrared sensors, force sensors, and photo diodes. The health parameters monitored include heart rate, respiration rate, weight, body mass index, calories burnt, pressure distribution, diet, blood pressure, blood glucose, oxygen saturation, posture, duration of sleep, quality of sleep, hand movement, body temperature, skin conductance, exposure to ultraviolet light, adherence to medication-intake schedule, gait characteristics, and steps taken. The population monitored includes elderly people, miners, stroke survivors, osteoarthritis patients, people suffering from anorexia nervosa, obese people, people with Parkinson's disease, people having panic attacks, and wheelchair users.
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Neer, Richard. "Introduction." In Conditions of Visibility. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198845560.003.0006.

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What conditions must be met, what has to be in place, for an artifact or a work of art to be visible as such? At some level the answer is simple: the lights must be on. Quickly, however, the issues become more complex and turn out to vary from discipline to discipline. Not everything is visible at every time, which means that not every research program can see the same things. Material conditions are certainly important, but so are perceptual capacities, technologies of visualization, protocols of classification, and a great deal more. Archaeology is, among other things, the science of making things visible. It does so by digging them out of the ground; what time has hidden, the archaeologist reveals. The discipline is, as a result, keenly attuned to the material conditions under which such visibility becomes possible. Those conditions can be institutional, practical, and technological—funding, permits, and tools, be they picks and shovels or ground penetrating radar. But the conditions that archaeology investigates can also be historical, in the sense that, even in the distant past, visibility was neither uniform nor given. Historical agents, no less than time, may do the work of concealment: burying things, hiding them, rendering them variously obscure. It follows that archaeologists excavate more than artifacts. Equally, they excavate the conditions of each artifact’s potential visibility: the material conditions under which entities in a past world could be conspicuous and obtrusive, or recede into an unremarkable background. In short, they excavate relations no less than things—hence, by extension, a potential stratification in who saw what and at what time. Art history, on the other hand, tends to take visibility for granted. Integral to the discipline is a vast infrastructure of imaging and autopsy, from ArtSTOR to high-quality printing to travel grants—all committed to what Michael Fried has called “the primordial convention” that pictures and sculptures are meant to be beheld. This commitment exceeds the requirements of empirical research: even the most thorough technical documentation and the most meticulous description will, by broad consensus, be no substitute for seeing the object with one’s own eyes.
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Conference papers on the topic "Obtrusive light"

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Novak, Tomas, Karel Sokansky, and Daniel Divis. "The measurement of the spectral qualities of obtrusive light." In 2011 10th International Conference on Environment and Electrical Engineering (EEEIC). IEEE, 2011. http://dx.doi.org/10.1109/eeeic.2011.5874811.

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Novak, Tomas, Dionyz Gasparovsky, Petr Becak, and Karel Sokansky. "MODELLING OF LARGE LIGHT SOURCES RADIATION TO THE UPPER HEMISPHERE - OBTRUSIVE LIGHT." In Proceedings of the 29th Quadrennial Session of the CIE. International Commission on Illumination, CIE, 2019. http://dx.doi.org/10.25039/x46.2019.po171.

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Bertin, K., G. Zissis, G. Salas, P. M. Raynham, A. Moutsi, S. A. Mucklejohn, and B. Preston. "AN OVERVIEW OF THE IMPACT OF STRAY LIGHT FROM COMMERCIAL GREENHOUSES." In CIE 2021 Conference. International Commission on Illumination, CIE, 2021. http://dx.doi.org/10.25039/x48.2021.po37.

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Stray light from commercial greenhouses is becoming a significant problem causing disruption to wildlife activity and annoyance for local residents. To quantify the amount of stray light from a typical large greenhouse the authors have modelled several lighting installations based on a range of generic horticultural light sources. The impact of the stray light is dependent on the spectral power distribution of the sources employed, the intensity and distribution. Current standards for obtrusive light from outdoor work places do not seem to be suitable when applied to greenhouses.
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Becak, P., and T. Novak. "MODELLING OF VERTICAL SURFACES RADIATION IN CONNECTION WITH THE EVALUATION OF THE OBTRUSIVE LIGHT." In CIE 2021 Conference. International Commission on Illumination, CIE, 2021. http://dx.doi.org/10.25039/x48.2021.po64.

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The issue of the luminous flux radiation to the upper hemisphere is very broad and complex. The paper deals with the modelling of the vertical surface radiators. It presents an approach to unify the behaviour of these types of light sources. These will be understood as cosine radiators. If this cosine distribution curve is taken into account, then only the luminance and the light-active surface can be known to supplement the information about the radiation of such the light source. The luminance and radiated surface can be obtained relatively easily from real field measurements. The article presents the implementation of this data into lighting calculations and the creation of the distribution curves which are necessary for the radiation calculations of these surfaces. It also analyses the influence of the luminance and active areas on the radiated luminous flux and assign these values to the real radiators.
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Gasparovsky, D., and P. Janiga. "ASSESSMENT OF ROAD LIGHTING PERFORMANCE FOR TRAFFIC INTENSITY AND TRAFFIC DETECTION BASED LIGHTING ADAPTATION." In CIE 2021 Conference. International Commission on Illumination, CIE, 2021. http://dx.doi.org/10.25039/x48.2021.wp02.

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Amongst many road lighting design criteria, energy performance plays an important role as it has a direct link to operational costs, potential reduction of carbon dioxide emissions, mitigation of obtrusive light, and its impact on the night-time environment in urban and con-urban settlements. The energy energy performance of road lighting is conveniently described by the pair of normative numerical indicators PDI and AECI established in European standards. This paper aims to present typical values of the AECI (Annual Energy Consumption Indicator) for different combinations of road arrangements, road widths, lighting classes and light source technologies to illustrate what benchmarks can be expected using this assessment system. Essential part of this paper is focusing on assessment of the performance for traffic intensity and traffic detection based lighting adaptation.
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Colon Hernandez, Pedro, and Michael Bove. "Hover: A Wearable Object Identification System for Audio Augmented Reality Interactions." In LatinX in AI at Neural Information Processing Systems Conference 2018. Journal of LatinX in AI Research, 2018. http://dx.doi.org/10.52591/lxai2018120313.

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We design, implement, and test a wearable object identification system which allows users to "hover" their hands over objects of interest and get access to contextual information that may be tied to them, through an intelligent personal assistant. The system uses a fusion of sensors to be able to perform the identification of an object under a variety of conditions. Among these sensors there is a camera (operating in the visible and infrared spectrum), a small solid-state radar, and multi-spectral light spectroscopy sensors. Users can interact with contextual information tied to an object through conversations with an intelligent assistant to permit a hands-free, non-obtrusive, and personalized experience. The system explores audio interfacing with augmented reality content without the hassle of phones or head mounted devices.
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White, Paul F., and Gerti Kola. "Milwaukee Streetcar Overhead Contact System: A Challenging Design Effort." In 2019 Joint Rail Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/jrc2019-1294.

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The new Milwaukee Streetcar system has been in the planning, design and construction phases for over 10 years and on November 2, 2018, operations with a combined overhead contact system and streetcar battery power commenced ushering in a new era of growth for the City of Milwaukee. Many challenges in the design and construction of the overhead contact line and power system were encountered during this time period including budgetary constraints, multiple pole location changes, underground obstacles, low clearance bridges, alignment changes, utility conflicts, and changing vehicle requirements. The line was originally designed for pantograph operation but soon adapted for pole/pantograph current collection and then changed back to pantograph only current collection during the final design. The original design consisted of underground feeder cables to supplement a 4/0 contact wire but eventually not utilized due to budgetary constraints. Instead, a larger 350 kcmil contact wire was used with no paralleling feeder cables. The added weight of a 350 kcmil wire with wind, ice and low temperatures created high forces in the overhead contact system (OCS) leading to challenges in pole and foundation design where compliance to the National Electrical Safety Code (NESC) was required. The OCS style originally proposed and finally constructed used an inclined pendulum suspension (IPS) system that was constant tensioned with rotating springs deemed by the installing contractor superior to balance weights. The pendulum system was chosen as it is simple, lightweight, less visually obtrusive, and more economical than other suspension systems such as stitch and steady arm that are being used on other streetcar or light rail systems. IPS has provided Milwaukee with an excellent operating overhead contact system. Buildings along the route that were not historic structures were utilized where possible for span wire attachment but in many locations long bracket arms up to 40 feet long had to be used requiring special designs to keep the size of the pipes standard with the rest of the system. Challenges arose at low bridge underpasses where the contact wire had to be below required code height and special precautions had to be undertaken. Other areas such as the St. Paul Lift Bridge proved challenging as well where special electrically interlocked OCS devices were initially designed to de-energize the overhead wires and is further discussed with the reasoning for their use. This paper outlines the phases of design, the changes to the design that occurred over time, the challenges encountered to the OCS design, the method of design, and the final disposition of the design for construction. It further outlines the construction of the system and problems encountered with poles, foundations, bracket arms, traction power substations, contact wire, feeder cables, and winter conditions affecting the integrity of these structures and how some of these problems were solved.
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Brankovic, Maša, Stuart William Murchie, Odd Einar Magnussen, Espen Osaland, Niels Erik Sørensen, and Lars Hårsaker. "Advanced Intervention Technology Platform Provides Increased Capability Enabling Efficient High-Volume Wellbore Cleanout Solutions on Electric Line." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204449-ms.

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Abstract Electric line deployed well intervention technologies are continuing to grow in use and relevance, this is due to the value provided by a highly efficient and effective means of intervention. It is light on equipment, personnel and logistics, is controlled and precise in its in-well execution, and is less obtrusive to the wellbore, the reservoir and the environment. These valuable characteristics are making electric line deployed solutions the preferred choice of customers for many interventions, whether that be for addressing new well completion, old well rejuvenation or repair, or eventual plug and abandon (P&A) operational scope. Preference is also increasing with those customers who are keen to push the boundaries of these technologies to leverage their beneficial impact across a broader range of intervention operations. Often, the tasks or workscope assigned to electric line deployed intervention technologies are reserved for what would be considered the lighter end of the spectrum, for example, low volume debris cleanout, small component milling and low force tool manipulation. However, as full system-based intervention technology platforms are developed, incorporating advanced interconnected technology components, the magnitude of what can be achieved has expanded electric line intervention solutions into the realms of work scope previously reserved for heavier methods, like coiled tubing or drill pipe based. That, coupled with the efficient and precise execution and inherently light footprint that electric line deployed intervention brings, is adding to the increased interest in expanding its use. Two recent electric line deployed wellbore cleanout operations carried out on the Norwegian Continental Shelf involving high volumes of debris demonstrate the advantages this advanced intervention technology platform has enabled, the scalability of its performance, and why it is challenging the traditional thinking and perception of what is possible on electric line. In the case operation 1, extensive volumes of produced sand had accumulated in a large mono-bore completion preventing the execution of a required P&A operation. In case operation 2, the well had significant Barium Sulphate (BaSO4) scale deposits over much of its length, which prevented well access for a required gas lift valve (GLV) change out. In both these cases, efficient and effective electric line deployed remediation was possible due to the increased performance, in-well task visibility and real-time task control provided by the advanced electric line intervention technology platform that was utilised. Attempting both these cases was strongly encouraged by the customer, leading a one team approach. For case operation 1, high speed tractor conveyance speeds of over 26 meters/minute were achieved on this multi-run operation. Instrumentation provided real-time indication of collection chambers being full, ensuring minimal time on depth during collection. Consistent high volume recovery rates of 100% were achieved on all but one of the collection runs, with a total of 1400 liters of sand debris being collected, clearing 280 meters of wellbore, at an average of 140 liters per 24 hours. For case operation 2, over 2000 meters of hard scale was milled, at a rate of penetration (ROP) of 44 meters/hour, on average, re-establishing access for required electric line intervention runs and the subsequent change out of the leaking GLV to restore the integrity of the well, enabling it to be put back on line and resume production. Record breaking achievements regarding the volume of debris removed and depth intervals cleaned via the intervention technology platform were made in both cases.
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Reports on the topic "Obtrusive light"

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Pollard, N. E., W. von Bommel, D. Diaz Castro, J. Lecocq, B. J. Pong, and A. Walkling. CIE 150:2017 GUIDE ON THE LIMITATION OF THE EFFECTS OF OBTRUSIVE LIGHT FROM OUTDOOR LIGHTING INSTALLATIONS, 2ND EDITION. International Commission on Illumination, December 2017. http://dx.doi.org/10.25039/tr.150.2017.

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