Relevant bibliographies by topics / Light intensity. eng

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Light intensity. eng'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Light intensity. eng"

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Lewis, PD, TR Morris, and GC Perry. "Light intensity and age at first egg in pullets." Poultry Science 78, no. 8 (1999): 1227–31. http://dx.doi.org/10.1093/ps/78.8.1227.

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Kinoshita, Michiyo, Kei Yamazato, and Kentaro Arikawa. "Polarization-based brightness discrimination in the foraging butterfly, Papilio xuthus." Philosophical Transactions of the Royal Society B: Biological Sciences 366, no. 1565 (2011): 688–96. http://dx.doi.org/10.1098/rstb.2010.0200.

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The human eye is insensitive to the angular direction of the light e-vector, but several animal species have the ability to discriminate differently polarized lights. How the polarization is detected is often unclear, however. Egg-laying Papilio butterflies have been shown to see false colours when presented with differently polarized lights. Here we asked whether this also holds in foraging butterflies. After training individuals to feed on nectar in front of an unpolarized spectral light, we carried out three dual-choice tests, where the discrimination of (i) the spectral content, (ii) the l
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HULET, R. M., D. M. DENBOW, and A. T. LEIGHTON. "The Effect of Light Source and Intensity on Turkey Egg Production." Poultry Science 71, no. 8 (1992): 1277–82. http://dx.doi.org/10.3382/ps.0711277.

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Khaskheli, Asad Ali. "Effects of Light Intensity and Photoperiod on growth and reproductive performance of Coturnix japonica: A review." Turkish Journal of Agriculture - Food Science and Technology 8, no. 10 (2020): 2113–17. http://dx.doi.org/10.24925/turjaf.v8i10.2113-2117.3572.

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Present review was performed in order to understand the influence of photoperiod and light intensity on Coturnix japonica. Different literatures were reviewed regarding egg production, behaviour, body weight, feed intake, feed conversion ratio, carcass weight, egg quality with respect to photoperiods and intensities. It was noticed from the reviewed studies that light intensity of 80 and 20 luxes for 8 hours during growing period and 240 and 60 luxes for 16 hours during laying period results 194.85±4.46, 191.42±2.87 feed intake, 201.00±13.82, 210±15.1 weekly weight gain. The better feed conver
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Pauly, Daniel. "THE LEIOGNATHIDAE (TELEOSTS): AN HYPOTHESIS RELATING THEIR MEAN DEPTH OCCURRENCE TO THE INTENSITY OF THEIR COUNTERSHADING BIOLUMINESCENCE." Marine Research in Indonesia 19 (May 10, 2018): 137–46. http://dx.doi.org/10.14203/mri.v19i0.377.

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All species belonging to the Family Leiognathidae (genera Leiognathus, Secutor & Gazza) are bioluminescent. They emit during daytime a downward, diffuse light which tends to disrupt their silhouette, making them less discernible from beneath to potential predators. It is here assumed that the intensity of light emitted should correspond to the intensity of incident light at the depth at which each species generally occurs. Using published information on the relative intensity of emitted light in different species and quantitative data on the mean depth occurrence of the species, it is show
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Ropathy, Nathan Raj A/L R., Hui Leng Choo, Chai Hong Yeong, and Yin How Wong. "UVC Light Simulation for Room Disinfection System." MATEC Web of Conferences 335 (2021): 03012. http://dx.doi.org/10.1051/matecconf/202133503012.

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Viruses are minuscule parasites that have gained notoriety for causing diseases. However, these harmful pathogens can be inactivated using Ultraviolet-C (UVC) radiation that has a wavelength between 200 – 280 nm. The wavelengths of the UVC are responsible for germicidal effect as the proteins (e.g. RNA and DNA) absorb the maximum radiation in these wavelengths and damage the DNA of the viruses so that they cannot replicate. This project aimed to simulate the UVC light intensity in different room layouts to guide the evaluation of the effectiveness of surface disinfection system which consists
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Siopes, T. D. "Lighting for Summer Egg Production by Turkeys: Day Length and Light Intensity." Poultry Science 86, no. 11 (2007): 2413–19. http://dx.doi.org/10.3382/ps.2007-00245.

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Wiltschko, Wolfgang, and Roswitha Wiltschko. "Light-dependent magnetoreception in birds: the behaviour of European robins,Erithacus rubecula, under monochromatic light of various wavelengths and intensities." Journal of Experimental Biology 204, no. 19 (2001): 3295–302. http://dx.doi.org/10.1242/jeb.204.19.3295.

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SUMMARYTo investigate how magnetoreception is affected by the wavelength and intensity of light, we tested European robins, Erithacus rubecula, under monochromatic lights of various wavelengths at two intensities using oriented behaviour as an indicator of whether the birds could derive directional information from the geomagnetic field. At a quantal flux of 7×1015 quanta s–1 m–2, the birds were well oriented in their migratory direction east of North under 424 nm blue, 510 nm turquoise and 565 nm green light, whereas they were disoriented under 590 nm yellow light. Increasing the intensity of
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Lin, J., S. Westland, and V. Cheung. "Effect of intensity of short-wavelength light on electroencephalogram and subjective alertness." Lighting Research & Technology 52, no. 3 (2019): 413–22. http://dx.doi.org/10.1177/1477153519872801.

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Short-wavelength light is known to have an effect on human alertness in the night-time. However, there are very few studies that focus on the effect of intensity of light on alertness. This study evaluates the acute alerting ability of short-wavelength light of three different intensities (40 lux, 80 lux and 160 lux). Eight subjects participated in a 60-minute exposure protocol for four evenings, during which electroencephalogram (EEG) as well as subjective sleepiness data were collected. EEG power in the beta range was significantly higher after subjects were exposed to 160 lux light than aft
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Tucker, S. A., and D. R. Charles. "Light intensity, intermittent lighting and feeding regimen during rearing as affecting egg production and egg quality." British Poultry Science 34, no. 2 (1993): 255–66. http://dx.doi.org/10.1080/00071669308417582.

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Dissertations / Theses on the topic "Light intensity. eng"

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Tonetto, Aurélio Fajar. "Efeitos da irradiância e da composição espectral da luz sobre o estabelecimento e desenvolvimento de comunidades de macroalgas lóticas em substratos artificiais /." Rio Claro : [s.n.], 2010. http://hdl.handle.net/11449/87902.

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Orientador: Ciro Cesar Zanini Branco<br>Banca: Orlando Necchi Junior<br>Banca: Carla Ferragut<br>Resumo: Os efeitos provocados pela variação quantitativa e qualitativa da luz incidente sobre a estrutura das comunidades de macroalgas lóticas em riachos da região Centro-Sul do estado do Paraná foram investigados a partir de experimentos utilizando-se amostradores com substratos artificiais que modulam a quantidade e qualidade da luz incidente. Os resultados reveleram que as respostas das divisões algais isoladamente foram mais claras do que àquelas observadas para as comunidades de macroalgas co
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Carvalho, Thaís Billalba. "A interferência da luminosidade na agressividade e na hierarquia social de ciclídeos /." Jaboticabal : [s.n.], 2009. http://hdl.handle.net/11449/100237.

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Orientadora: Eliane Gonçalves de Feitas<br>Banca: Luiz Henrique Florindo<br>Banca: Gelson Genaro<br>Banca: Silvia Mitiko Nishida<br>Banca: João Batista Kochenborger Fernandes<br>Resumo: Alterações no ambiente aquático, provocadas por ações antrópicas no ambiente natural ou artificial, causam mudanças em fatores físicos (ex: luminosidade) que podem afetar o comportamento e a fisiologia dos peixes. Assim, foi testado o efeito da luminosidade sobre o comportamento agressivo, a hierarquia social, indicadores de estresse e os níveis de esteróides sexuais em ciclídeos. Para isso, foram realizados 4
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Paee, Furzani. "Photosynthetic acclimation to lower light intensity in Arabidopsis thaliana." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/photosynthetic-acclimation-to-lower-light-intensity-in-arabidopsis-thaliana(39ab9c6f-f1f2-463c-93c2-32210b7d8f4e).html.

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Photoacclimation is a process by which photosynthetic capacity is regulated in response to environmental adjustments in terms of light regime. Photoacclimation is essential in determining the photosynthetic capacity to optimize light use and to avoid potentially damaging effects. Previous work in our laboratory has identified a gene, gpt2 (At1g61800) that is essential for plants to acclimate to an increase in growth irradiance. Furthermore, we observed that the accession Columbia-0 (Col-0) is unable to respond to increases in light. Therefore, a Quantitative Trait Locus (QTL) mapping analysis
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McCall, Stephanie Jane. "Investigating the effects of nutrient concentration and light intensity on benthic biofilm development and phytoplankton growth in UK rivers." Thesis, University of Portsmouth, 2014. https://researchportal.port.ac.uk/portal/en/theses/investigating-the-effects-of-nutrient-concentration-and-light-intensity-on-benthic-biofilm-development-and-phytoplankton-growth-in-uk-rivers(5bb096f7-b9fb-4a4f-a714-e2f05271800d).html.

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Phosphorus is often considered the limiting nutrient in rivers, and reducing concentrations has long been a key policy focus. However, experience has shown that many phosphorus mitigation schemes fail to achieve any improvements in ecological status. The primary aim of this thesis is to identify target phosphorus concentrations that need to be attained to improve river ecology. In-stream flume mesocosms were deployed on three UK rivers of varying levels of nutrient enrichment. Phosphorus concentrations were simultaneously increased and decreased (by iron-dosing) to provide a concentration grad
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Books on the topic "Light intensity. eng"

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Cuartero, Mireia, and Niall D. Ferguson. High-frequency ventilation and oscillation. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0098.

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High-frequency oscillatory ventilation (HFOV) is a key member of the family of modes called high-frequency ventilation and achieves adequate alveolar ventilation despite using very low tidal volumes, often below the dead space volume, at frequencies significantly above normal physiological values. It has been proposed as a potential protective ventilatory strategy, delivering minimal alveolar tidal stretch, while also providing continuous lung recruitment. HFOV has been successfully used in neonatal and paediatric intensive care units over the last 25 years. Since the late 1990s adults with ac
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Book chapters on the topic "Light intensity. eng"

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"Intensity and range of signal lights on vessels." In CEVNI European Code for Inland Waterways. United Nations, 2010. http://dx.doi.org/10.18356/8ca30a55-en.

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Townsend, Peter. "Signal Processing by the Brain." In The Evolution of Music through Culture and Science. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198848400.003.0004.

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Our responses to sound and light are crucial. We sense them over intensity ranges of at least one million to one. Our brain makes compromises to deal with so much information. The strategy is to just recognize relative signal levels (e.g. to if one signal is twice that of another). In terms of actual intensity, a doubling in sound (or brightness of light) means it has increased by a factor of ten. This logarithmic counting system means a detailed range of one to a million has compressed to just six intensity doublings (ditto for storm and earthquake intensity scales). The ear response creates many unexpected distortions. Our hearing changes with age, and quite dramatically falls when exposed to prolonged high-volume sounds, including exposure to excessively loud music. This is a negative side of electronic amplification and broadcasting, and for headphones or hearing aids there are many distortions.
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Manab, Muhammad Hariz Abdul, Micheal Drieberg, Azrina Abd Aziz, Patrick Sebastian, and Hai Hiung Lo. "An Internet of Things Ambient Light Monitoring System." In Advances in Data Mining and Database Management. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7432-3.ch014.

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Nowadays, the Internet of Things (IoT) technologies are ubiquitous and widely used to solve everyday challenges related to power usage consumption, environmental condition, automation, and many more. A scalable IoT-based ambient light monitoring system is designed to measure the ambient light intensity or illuminance of particular indoor areas, with an implementation in campus. This system is designed to measure the light measurement autonomously and continuously without human involvement. The end-users are able to access the real-time information of the collected data via internet through a cloud-based IoT platform with analytics capabilities. This system will provide significant benefits to the campus community in terms of creating a more conducive environment, increased productivity, and improved health condition. Furthermore, its implementation can be easily extended to other human spaces to create even greater benefits to society at large.
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"Solutions: Is there a Light at the End of the Tunnel?" In Inside Health Care: Neonatal Intensive Care -Who Decides? Who Pays? Who Can Afford It?, edited by Oommen P. Mathew. BENTHAM SCIENCE PUBLISHERS, 2013. http://dx.doi.org/10.2174/978160805113010014.

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Keiko Lima Fujita, Alessandra, Daniel José Chianfrome, Vinicius Sigari Moreira, Anderson Luiz Zanchin, Priscila Fernanda Campos de Menezes, and Vanderlei Salvador Bagnato. "Anatomically Adjustable Device for Large-Area Photodynamic Therapy." In Photodynamic Therapy - from Basic Science to Clinical Research [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93917.

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The illumination system composed of LEDs is an anatomically adjustable device of high intensity that can be applied in different areas of the body. It can be applied in health care, as in the dermatological and esthetic treatments. The device improved the treatment of pathological diseases (e.g. actinic keratosis) since disseminated lesions were reached in a single application, thus reducing the time of the procedure and ensuring homogeneous light distribution. It was compared with a smaller and non-adjustable illumination device and evaluated in the treatment of actinic keratosis. The results showed its versatile application and a uniform adjustment to body curvatures.
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Close, Troy. "Visual Field Testing." In Glaucoma. Oxford University Press, 2012. http://dx.doi.org/10.1093/oso/9780199757084.003.0008.

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• Glaucoma results in progressive visual field deterioration, and detecting changes or recording stability in the visual field is important in the management of glaucoma. • Visual field testing is a highly subjective and operator-dependent test. • In patients with glaucoma, the visual field is tested in monocular fashion. •The boundaries of the visual field (in a well-lit environment with an easily visible target) are grossly 60 degrees superiorly, 75 degrees inferiorly, 100 degrees temporally, and 60 degrees nasally. • Basic concept in determination of visual field is “threshold” •Definition of “threshold”: weakest test stimulus that is just visible in a particular location (stimulus intensity at which the patient responds 50% of the time) •Types of visual field testing strategies •Confrontation •Spot testing •Kinetic spot testing •Static spot testing •An initial screening tool to look for large and dense visual field defects that may be present in very advanced glaucoma •Both hands should be used in the testing processed. The patient should occlude the untested eye with the palm of the hand. •If the visual acuity will allow the finger counting technique, all four quadrants may be tested at 3 to 4 feet from the patient at an approximate 45-degree angle holding up either one or two fingers, or a whole hand. • If the visual acuity is HM or LP, then test for light perception in the respective 4 quadrants. • It is important that the patient be able to tell you where the light is located in the field of vision, not simply the presence of light. • Factors that affect the visibility of the spot • Size Intensity • Background illumination Others: color, movement, duration of presentation, attentiveness of the patient, and refractive state of the eye • Kinetic • Usually Goldmann perimetry (though some of the automated machines such as the Octopus will perform kinetic perimetry) • The perimetrist may adjust the location, size, and intensity of the stimulus throughout the test. •Useful in the following cases: Those who need coaching and an altered pace of testing (e.g., elderly, wheelchair-bound, or limited concentration)
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Prabhakar, C. J., P. U. Praveen Kumar, and P. S. Hiremath. "3D Reconstruction of Underwater Natural Scenes and Objects Using Stereo Vision." In 3-D Surface Geometry and Reconstruction. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0113-0.ch005.

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Over the last two decades, research community of computer vision has developed various techniques suitable for underwater applications using intensity images. This chapter will explore 3D reconstruction of underwater natural scenes and objects based on stereo vision, which will be helpful in mine detection, inspection of shipwrecks, detection of telecommunication cables and pipelines. The general steps involved in 3D reconstruction using stereo vision are provided. The brief summary of papers for 3D reconstruction of underwater environment is presented. 3D reconstruction of underwater natural scenes and objects is challenging problem due to light propagation in underwater. In contrast to light propagation in the air, the light rays are attenuated and scattered, having a great effect on image quality. We have proposed preprocessing technique to enhance degraded underwater images. At the end of the chapter, we have presented the proposed stereo vision based 3D reconstruction technique to reconstruct 3D surface of underwater objects. Ultimately, this chapter intends to give an overview of the 3D reconstruction technique using stereo vision in order to help a reader in understanding stereo vision and its benefits for underwater applications.
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"Requirements concerning lights and the colour of signal lights on vessels, intensity and range of signal lights on vessels and general technical specifications applicable to radar equipment." In Recommendations on Harmonized Europe-wide Technical Requirements for Inland Navigation Vessels. UN, 2020. http://dx.doi.org/10.18356/aa3d5151-en.

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Scalabrino, Nicola, Daniele Miorandi, Enrico Gregori, and Imrich Chlamtac. "Multimedia Internet Applications over WiMAX Networks." In Encyclopedia of Internet Technologies and Applications. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59140-993-9.ch047.

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The market for conventional first mile solutions (e.g., cable, fiber etc.) presents indeed high entrance barriers, and it is thus difficult for new operators to make their way into the field. This is due to the extremely high impact of labor-intensive tasks (i.e., digging up the streets, stringing cables etc.) that are required to put the necessary infrastructure in place. On the other hand, the market is experiencing an increasing demand for broadband multimedia services (Nokia, 2001), pushing towards the adoption of broadband access technologies. In such a situation, Broadband Wireless Access (BWA) represents an economically viable solution to provide Internet access to a large number of clients, thanks to its infrastructure-light architecture, which makes it easy to deploy services where and when it is needed. Furthermore, the adoption of ad hoc features, such as self-configuration capabilities in the Subscriber Stations (SSs) would make it possible to install customer premises equipment (CPE) without the intervention of a specialized technician, so boosting the economical attractiveness of WiMAX-based solutions. In this context, WiMAX is expected to be the key technology for enabling the delivery of high-speed services to the end users.
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Dryzek, John S., Richard B. Norgaard, and David Schlosberg. "Transition, Resilience, and Reconstruction." In Climate-Challenged Society. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199660100.003.0012.

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In the long run, responding to the challenge of climate change is going to require a de-carbonized economy with different energy systems and reconceptualized social-ecological relationships. Given the magnitude of the task, quite how to move in this direction remains a matter of some contention. In this chapter we examine several potentially complementary approaches, though nobody has yet identified the key to transition, and we do not resolve all the big questions about how to proceed. This coverage of a variety of innovations also makes sense in light of the failure to date of established centers of power—be they the global economic system, UNFCCC negotiations, or national governments—to craft effective responses. We group innovations under social resilience, new thinking about economics, new movements that embody this thinking, and new governance. Some developments are incremental, some more radical. These developments give us something more upbeat to end on, showing that transition is already being lived, if only, so far, on the margins of societies. In Chapter 4 we looked at the importance of adaptation, especially in light of current global failure to advance on the mitigation front. Adger et al. (2011a: 757) point out that “adaptive responses are not equal in terms of the sustainability of resource use, energy intensity, reduction of vulnerability, or in the distribution of their benefits.” While the international community has had difficulty in coming to terms with adaptation (even by 2011 the Green Climate Fund adopted at the Durban meeting of UNFCCC covered adaptation but omitted any clear definition of the term), it does hold significant potential. Adaptation does not have to be defeatist, and indeed can be linked to empowerment— we adapt by recognizing “that human beings can protect themselves from damage by living harmoniously with their atmospheric environment” and reduce their vulnerability to climate change (Burton, 1994: 15). In this section we consider how adaptation might contribute to transition. On the academic side, adaptation to environmental change is increasingly understood in terms of the concept of resilience. According to the multinational Resilience Alliance (2013), “A resilient ecosystem can withstand shocks and rebuild itself when necessary.
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Conference papers on the topic "Light intensity. eng"

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Wang, Caili, Sanzhao Wang, Shiyong Xie, et al. "Research on light intensity distribution of end-pumped 1064nm Q-switched laser." In Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, edited by Junhao Chu, Qifeng Yu, Huilin Jiang, and Junhong Su. SPIE, 2021. http://dx.doi.org/10.1117/12.2585022.

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FREITAS, LETÍCIA CIBELE S. R., ILDA DE FÁTIMA FERREIRA TINÔCO, TATIANY CARVALHO DOS SANTOS, MÁRCIA GABRIELLE LIMA CÂNDIDO, CECÍLIA DE FÁTIMA SOUZA, and RICHARD STEPHEN GATES. "Light intensity, egg weight and egg size in a vertical aviary of naturally ventilated laying hens." In 10th International Livestock Environment Symposium (ILES X). American Society of Agricultural and Biological Engineers, 2018. http://dx.doi.org/10.13031/iles.18-149.

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Earl, D. D., and J. D. Muhs. "Preliminary Results on Luminaire Designs for Hybrid Solar Lighting Systems." In ASME 2001 Solar Engineering: International Solar Energy Conference (FORUM 2001: Solar Energy — The Power to Choose). American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/sed2001-116.

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Abstract We report on the design of two hybrid lighting liminaires that blend light from a fiber optic end-emitted solar source with electric T8 fluorescent lamps. Both designs involve the retrofit of a commercially-available recessed fluorescent luminaire with minimal reductions in the original luminaire’s optical efficiency. Two methods for high-angle dispersion of fiber optic end-emitted solar light are described and the resulting spatial intensity distributions, simulated using ZEMAX, are compared with standard cylindrical fluorescent tubes. Differences in spatial intensity distribution ar
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"Low intensity fluorescence light measurements using Silicon Photomultiplier with dedicated front-end ASIC." In 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC). IEEE, 2013. http://dx.doi.org/10.1109/nssmic.2013.6829205.

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Zhou, Jianhua, and Dengying Liu. "Numerical Study on the Thawing of Frozen Biological Tissue Induced by Laser Irradiation." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32688.

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Because of its strong scattering effect in biological tissue, laser light (especially at near-infrared wavelength) can heat a comparatively large volume of tissue. This volume heating, coupled with other advantages (e.g. lasers can deliver high intensity light to small well-defined areas under precise control), makes the laser an excellent heat source. It can thus be used to achieve the thawing of frozen biological tissue. This may have great potentials in medicine (e.g. rewarming of cryopreserved biological tissue) and food industry.
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Tabei, Katsuine, Shunji Mashiko, and Hiroyuki Shirai. "Study of Cavitation Light Emission Generated by a Waterhammer." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45274.

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Cavitation light emission generated by a waterhammer is investigated experimentally and theoretically for water containing a small amount of rare gas (xenon and argon). In the experiment, the water is forced to flow upwards in an evacuated vertical circular tube by the rapid opening of a ball valve that is connected to the liquid reservoir. The liquid vaporizes until the flow reaches the top end of the tube, and many minute cavitation bubbles are generated in the liquid. When the water column collides with the end of the closed pipe, a waterhammer with a pressure of over 1 MPa is generated in
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Parsinejad, Farzan, and Hameed Metghalchi. "Investigation of Light Interaction With Transient Expanding Thick Flames." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55290.

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Optical behavior of spherical flames has been investigated using Shadowgraph method. A mathematical model has been developed to predict the intensity profile of refracted light beams interacting with a transient expanding thick flame. Experimental facilities have been built to visualize transient expanding spherical flames. Facilities include a cylindrical chamber with two end glasses for optical observation. Shadowgraph pictures of flame propagation have been taken using a high speed Charged Coupled Device camera. Flame edge has been located using the mathematical model and it has been compar
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Kidd, S. R., J. S. Barton, J. D. C. Jones, K. S. Chana, and I. W. Matthews. "Fibre Optic Interferometric Heat Transfer Sensors for Transient Flow Wind Tunnels." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-218.

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A new type of heat transfer sensor has been developed in which the sensing element is a short length (∼3mm) of single mode optical fibre acting as a Fabry-Perot interferometer. The reflected light intensity follows a periodic transfer function, and the phase change is proportional to the sensor’s spatially averaged temperature. We present results from three optical fibre sensors embedded as calorimeter gauges in a ceramic nozzle guide vane end wall model exposed to a transient heat flux of ∼100 kWm−2 in the Isentropic Light Piston Facility at DRA Pyestock Famborough, and validated by compariso
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Zhang, Hongjie, and Sy-Bor Wen. "Temperature Measurement of Microscale Electronic Devices With 3D Thermoreflectance Imaging." In ASME 2017 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/ht2017-4954.

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3D thermoreflectance (TR) imaging utilizing light field camera is proposed and developed in this study. With the capability of resolving light direction and intensity simultaneously, we are able to measure directional TR signal from tilted or curved surfaces through the light field camera. Once the directional TR coefficients of the target surface is collected, we can then estimate the temperature distributions of tilted or curved surfaces based on the measured directional TR signal. This new 3D TR imaging approach has the potential to measure temperature of surfaces with different configurati
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Rezzag, Taha, Robert Burke, and Kareem Ahmed. "A Kinematic Study of Individual Rotating Detonation Engine Waves Using K-means Algorithm." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-58814.

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Abstract The current research is concerned with studying the instantaneous properties of the detonation waves in a RDRE by tracking each individual wave and recording its position, velocity, and peak intensity as it travels around the annulus. This information is retrieved by a non-intrusive method consisting of using a data mining technique, the k-means algorithm, to distinguish each detonation from each other in a particular frame. An algorithm was then developed to match the detonations of a current frame to the ones of a previous frame. The code was validated against results found from the
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Reports on the topic "Light intensity. eng"

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Gomez Garcia, Olga, Henry Mooney, David Rosenblatt, et al. Caribbean Quarterly Bulletin: Volume 10: Issue 1, May 2021. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003265.

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Countries around the world have endured over a year of extreme uncertainty in the context of the COVID-19 crisis, and economies in the Caribbean have suffered more than most. But with the increasing availability of vaccines and prospects for a resumption of international travel, light is emerging at the end of the Pandemic tunnel. With this in mind, The Inter-American Development Bank Caribbean1 Departments most recent Quarterly Bulletin reviews the latest available information regarding the crisis impacts on citizens, their economies, and key factors that will determine the speed and depth of
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