Relevant bibliographies by topics / Light Curtains

Academic literature on the topic 'Light Curtains'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Light Curtains"

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Matsangas, Panagiotis, Nita Shattuck, and Heather Clifton. "289 Rack curtains improve sailors’ sleeping conditions in berthing compartments of the United States Navy (USN) ships." Sleep 44, Supplement_2 (May 1, 2021): A116. http://dx.doi.org/10.1093/sleep/zsab072.288.

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Abstract Introduction Ambient light is one of the primary factors affecting sailor sleep in berthing compartments on USN ships. Each “rack” (i.e., bunk) has a curtain, however, intended only for privacy. Current rack curtain specifications do not address light-blocking properties. We assessed the effects of replacing existing, standard rack curtains with enhanced rack curtains that provide superior light-blocking in the sleeping environment. Methods Longitudinal (~2 weeks), naturalistic observation of sailors (N=52; 41 enlisted personnel) on a USN destroyer during deployment. The standard curtain was used for one week followed by one week with the enhanced light-blocking curtain. Sleep-related attributes (Epworth Sleepiness Scale–ESS, Insomnia Severity Index–ISI, Pittsburgh Sleep Quality Index–PSQI) were assessed at the end of each week. Actigraphy and rack temperature data (both inside and outside the rack) were collected throughout the study. Results are presented as median±median absolute deviation. Results Participants slept on average 6.8±1.0 hours/day. ESS scores improved with decreases from 9.0±3.0 with standard curtains to 7.0±3.0 with the enhanced curtains (p=0.020). Sailors with normal daytime sleepiness improved from 33 (63.5%) with standard curtains to 40 (76.9%) with the enhanced curtains. ISI scores decreased from 11.0±3.0 to 8.0±2.0 in the two conditions (p<0.001). The number of Sailors with ISI scores ≥15 decreased from 11 (21.2%) with standard curtains to 8 (13.5%) with the enhanced curtains (p=0.103). PSQI scores (8.0±2.0), however, did not change between the control and the intervention periods (p=0.527). Preliminary analysis showed that, compared to outside the rack, temperature inside the rack was slightly warmer on average with new curtains (~1 °F; p=0.096). Conclusion Our results suggest that the enhanced curtains reduced average daytime sleepiness and severity of insomnia symptoms. A greater difference in rack temperature with the enhanced curtains was observed; however, this may be attributed to the ship sailing in southern latitudes during the intervention period. Ongoing analysis will provide more insight on the utility of the enhanced curtains and their efficacy in improving sleeping conditions. Support (if any) Supported by the Naval Medical Research Center’s Advanced Medical Development Program, the US Navy 21st Century Sailor Office, and the US Navy OPNAV N1.
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Muhammad Dzikri Maulana Syafa’at and Yulia Bherlinda. "Automatic Curtain Design With LDR And IR Sensors at The BAPPENDA Kebumen." Jurnal E-Komtek (Elektro-Komputer-Teknik) 5, no. 1 (June 28, 2021): 55–64. http://dx.doi.org/10.37339/e-komtek.v5i1.430.

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The Regional Revenue Management Agency of Kebumen Regency is a government agency that manages regional revenue in Kebumen Regency. The design of automatic curtains is expected to make it easier for office employees to use the facilities. This automatic curtain uses a flow chart and programming logic in designing programs for the light intensity of the IR sensor and the LDR sensor as an automatic curtain indicator using a remote. The design of the automatic curtain consists of an IR sensor and an LDR sensor as input, Arduino UNO as a processor, Relay as a component that transmits commands from the Arduino UNO to the motor, and motor as the output of this project. Automatic curtains at BAPEDA Kebumen can make it easier for employees to use office facilities to make them more durable, more comfortable, and more effective during working hours or on holidays because of the automatic curtain system that has been made.
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Yang, Jiu Hong. "Design of Light Control Curtain System in Smart Home." Applied Mechanics and Materials 701-702 (December 2014): 1243–46. http://dx.doi.org/10.4028/www.scientific.net/amm.701-702.1243.

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To make a building structure beautiful and obtain a good daylighting, the windows become more and more big. It is inconvenience for the opening and closing of the bigger curtain. The frame structure of automatic control curtain is designed and manufactured, as well as DC motor drive, light detection, preventing over-wind, curtain position detection circuit. The corresponding control programs realize the automatic control function of curtain. Automatic curtain system contains three kinds of mode. Manual mode is the basic function of automatic curtain system. The wireless remote control function provides convenience for the user to control the opening and closing of curtain. Automatic light sensor model realizes the automatic control of curtain, according to the brightness of the light. The sensitivity of light sensor can be adjusted by artificial to make the customer satisfied. The open degree of curtain can be manual adjusted to meet the requirements of the various length of the curtain. The system is simple and practical. Its energy consumption and cost is low. As a part of the smart home, the system is suitable for opening and closing control of the curtains and provides the convenience for people's daily lives.
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Chen, Wei Lai, Ding Hong Yi, Lin Yan Wan, and Hui Fang Li. "Effects of Insolation on Optical Properties of Tricot Invisible Curtain." Advanced Materials Research 790 (September 2013): 102–6. http://dx.doi.org/10.4028/www.scientific.net/amr.790.102.

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In order to analyze the optical properties of different dyeing invisible curtain after long time insolation in xenon arc lamp which stimulated realistic sunlight conditions. Four different light color dyeing (yellow,blue,purple,and peach )Tricot Invisible Curtains were selected. The color and the optical properties,including the light transmittance and reflectance of the technical face and back side of samples in the ultraviolet and visible band, were tested and analyzed.The results showed that the color of all samples had different degree of fading after insolation, the anti-ultraviolet and transmittance properties were improved. The light-admitting and privacy-keeping functions of samples can keep stable after long time insolation and yellow sample keep the best performance of anti-peep properties.
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Wei, Le, An Gu, Zhimou Guo, Junjie Ding, Gaowa Jin, and Yong Lei. "An Integrated Study on the Fading Mechanism of Malachite Green Industrial Dye for the Marquisette Curtain in the Studio of Cleansing Fragrance, the Palace Museum (Beijing)." Molecules 27, no. 14 (July 9, 2022): 4411. http://dx.doi.org/10.3390/molecules27144411.

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Historical marquisette curtains were composed of lightweight fabrics, woven in an open-mesh and leno-type weave, usually made of silk, and found in Qing imperial buildings. As panel curtains, they were exposed to light, and so underwent fading. This study investigated the manufacturing technology and fading mechanism of dyed marquisette fabric from the Studio of Cleansing Fragrance, the Palace Museum (Beijing). The technological aspects were identified. The types of weave, fiber, and adhesive used to fix the curtain to the wooden frame were identified through microscopic observation and infrared spectroscopy. A color change characterization was performed based on UV-visible diffuse reflectance spectra. The textile colorant was identified as malachite green (MG), and its degradation by light was subsequently studied by dynamic photolysis experiments in a kinetic solution for the rapid exploration of by-products. The main degradation pathways were thus identified and the factors responsible for the induced color changes were discussed. A comparison of the liquid chromatography-mass spectrometry (LC–MS) results of the products derived from the photolysis method as well as of the samples extracted from the object allowed for the identification of the presence of different degradation pathways in the faded and unfaded parts of the textile. A metabolomics analysis was applied to account for the differences in the degradation pathways.
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Xiong, Ai Min, Fei Yu Li, and Xuan Xie. "Intelligent Shading Control System Based on the Lonworks Bus." Applied Mechanics and Materials 273 (January 2013): 665–68. http://dx.doi.org/10.4028/www.scientific.net/amm.273.665.

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In order to improve the lighting and temperature control in large public buildings, intelligent shading technology has been growing attention. This intelligent shading control system is based on the Lonworks bus. It uses various sensors to detect indoor and outdoor light intensity and temperature changes automatically, the system provides reasonable the curtain control program to change the height of the curtains and the blade angle, to regulate indoor lighting and air-conditioning, reducing building energy consumption in all aspects. Common TCP / IP protocol is used to achieve a seamless connection with the building automation system. It concerns with energy saving, low carbon, environmental protection, intelligence concept of modern building.
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Samaranayake, Premaratne, Chelsea Maier, Sachin Chavan, Weiguang Liang, Zhong-Hua Chen, David T. Tissue, and Yi-Chen Lan. "Energy Minimisation in a Protected Cropping Facility Using Multi-Temperature Acquisition Points and Control of Ventilation Settings." Energies 14, no. 19 (September 22, 2021): 6014. http://dx.doi.org/10.3390/en14196014.

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Energy management in protected cropping is critical due to the high cost of energy use in high-tech greenhouse facilities. The main purpose of this research was to investigate the optimal strategy to reduce cooling energy consumption, by regulating the settings (opening/closing) of either vents or curtains during the day, at the protected cropping facility at Western Sydney University. We measured daily changes in air temperature and energy consumption under four treatments (open/closed combinations of vents and shade screens) and developed an optimal cooling strategy for energy management using multi-temperature acquisition points at different heights within a greenhouse compartment. The optimal treatment (vents open/curtains closed) reduced energy load at the rooftop, thereby maintaining a desirable plant canopy temperature profile, and reducing cooling energy. Daily energy consumption was lowest for vents open/curtains closed (70.5 kWh) and highest for vents closed/curtains open (121 kWh). It was also found that delaying the operation of opening and closing of vents and curtains until the plant canopy temperature reached 25 °C reduced cooling energy consumption and decreased heating energy consumption in the morning (e.g., 08:00 to 10:00). The estimated savings of 1.83 kWh per 1 °C cooling between the optimal (vents open/curtains closed) and least optimal (vents closed/curtains open) conditions had the potential for significant energy savings at 494 kWh per °C over a crop cycle of nine months in warm weather conditions. However, selection of the optimal cooling strategy utilising control of vents and curtains must also account for the impact from other greenhouse environmental factors, including light, humidity, and CO2 concentration, which may be crop specific.
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Wien, H. Chris. "(78) Sheltering Cut Flower Plants to Increase Stem Length." HortScience 41, no. 4 (July 2006): 1066B—1066. http://dx.doi.org/10.21273/hortsci.41.4.1066b.

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The stems of many flower species used as cut flowers are too short to be commercially useful. Non-chemical techniques are needed to increase the length of the harvested stems without weakening stem strength. Field experiments were conducted that explored the use of black or red shade fabric, used either as a canopy, or as a side curtain, with three species of cut flowers. Trachelium caerulum, Eustoma grandiflorum (Echo Champagne), and Rudbeckia hirta (Prairie Sun) were grown in split-plot experiments in which shade and shelter treatments were applied as main plots, and the flower species formed the subplots. In 2004, shade canopies of 70% light transmission were compared in black and red (“ChromatiNet”) netting, and 50% red netting. Stem length increased from 51 cm for unshaded controls to 54, 56, and 59 cm for 70% black, red, and 50% red, respectively. Productivity of the plants was decreased an average of 21% by shading. In 2005, shade canopies of 50% black or red were compared to side curtains of the same materials, and an unsheltered control, growing the same species of flowers. Stem length was increased by 25% when plants were grown under a shade canopy, and by 14% in the side curtain plots. Shading treatments reduced stem yield by 31%, whereas side curtains had no significant effect on number of stems per plant. Color of the netting did not affect stem length or stem yield in 2005. In both years, the thickness of harvested stems were increased significantly in the shelter treatments. The three species reacted similarly to the treatments imposed in both years. Shelter treatments can be a practical way of increasing cut flower stem length.
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Sager, David R., Charles H. Hocutt, and Jay R. Stauffer. "Estuarine fish responses to strobe light, bubble curtains and strobe light/bubble-curtain combinations as influenced by water flow rate and flash frequencies." Fisheries Research 5, no. 4 (August 1987): 383–99. http://dx.doi.org/10.1016/0165-7836(87)90054-3.

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Giovane, Frank, Bo Å. S. Gustafson, and Philippe L. Lamy. "An Optical Instrument to Characterize Individual Dust Particles." International Astronomical Union Colloquium 150 (1996): 247–50. http://dx.doi.org/10.1017/s0252921100501638.

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AbstractThe conceptual design for an optical instrument capable of characterizing dust particles by in situ measurements is described. This instrument, the Integrated Dust Analyzer (IDA), measures the light scattered at several different angles as a particle passes through a pair of polarized light curtains. It is capable of defining or providing an indication of such characteristics as size, index of refraction, absorptivity, and aggregate structure.
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Dissertations / Theses on the topic "Light Curtains"

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Luce, Brian. "Light From Behind the Iron Curtain: Anti-Collectivist Style in Edison Denisov's Quatre Pièces pour flûte et piano, With Three Recitals of Selected Works by Bach, Beaser, Carter, Fauré, Martin, Ibert, Liebermann, and Others." Thesis, University of North Texas, 2000. https://digital.library.unt.edu/ark:/67531/metadc2564/.

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An examination of the compositional style illustrative of the anti-collectivist ideology as found in Edison Denisov's Quatre Pièces pour flûte et piano. Includes a short history of Denisov's formal training, history of the Soviet musical environment, an overview of his creative output, and discussion of the anti-collectivist characteristics in his works. Defines the anti-collectivist doctrine as individual reaction to the totalitarian collective of the Soviet communist state of the twentieth century. Identification of eclectic compositional techniques, and how they represent individual expression under a totalitarian regime. Listing of Denisov's works with the flute in a primary role, interviews with Aurèle Nicolet and Ekaterina Denisov, correspondence from Denisov to Nicolet, and the manuscript score to Quatre Pièces pour flûte et piano follow as appendices.
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Mareček, Petr. "Robotický stolní fotbal." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254394.

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The aim of this diploma thesis is the design of robotic table football with the realization of the construction and control a single axis of table football. In introduction are described previously developed solutions. Next chapters contain a selection of specific gaming table and specification of linear, rotary motor. There are presented design visions with the placement of selected component together with proposal location of sensor system for ball detection. In the end of design section is specification and solution of placement safety features. The programming part of the thesis involves the implementation of a communication interface for data processing from the control algorithm of robotic table football.
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Studený, Marek. "Sportovní centrum ve Zlíně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392018.

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The diploma thesis deals with project documentation for the realization of the sports centre in Zlín. Object is located on the edge of the city Zlín in build-up area of the sports halls. Object is defined from two sides by major roads, that are connected with family and residential buildings. Building site of the object is sligtly sloping, however with ground adapting adjusts into seeming flat land. The hall is devided on three operation parts. First and dominant unit is formed by gaming area with grandstrand, corresponding facilities included. Second unit is formed by mountaineering wall, corresponding included. Third unit is formed by bar, corresponding facilities included. Object is drafted with consideration of the Baťas architecture. Object is designed like a skeleton construction with combinated system of frames. Main supporting vertical construction of skeleton is designed from reinforced prefabricated concrete column. Main supporting horizontal construction of skeleton is designed like a system solution slimfloor, that is based on placing prestressed segment onto bottom side of a special beam Deltabeam. Within the main supporting construction is designed stifenner and construction of grandstrand as well, maid from reinforced prefabricard concrete. Sheathing of the object is combinated. From the second floor is designed system from thermal insulated sandwich panels, which is anchored into the pre-set steel construction. Roof is designed as a flat roof with trapezoidal metal sheet with thermal insulation and waterproofing layer made from m-PVC. Fillings of the object including light curtain wall is designed from system Schüco.
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Parák, Roman. "Robotický stolní fotbal - herní strategie." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-320069.

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The aim of the master's thesis is the robotic table football device modification and the design of game strategies. The thesis was extended by the design of technology for the robotic table football safety and the design of the Human Machine Interface (HMI). In the introduction so far developed solutions and presentation of the B&R Automation company are described. The following chapters describe mechanical solution modification, electrical wiring diagram design, creating simulation in the MATLAB development environment, resolving security issues and the subsequent application of a solution into the robotic table football. The conclusion of the thesis is devoted to the visualization interface design.
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Velfl, Martin. "Nové brněnské hlavní nádraží a jeho veřejná prostranství." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-414297.

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The topic discussed in Brno for several decades is certainly the building of the new main railway station and its location. Countless architectural and urban studies have been done especially in 2018, which examined three possible locations of the station. After considering the possibilities, it was decided to place a new railway station near by the Svratka river. The advantage of the chosen location is the possibility of constructing a high-speed track, which is not possible in the current position of the station. Furthermore, this area allows the construction of a station on a green field, without limiting train traffic during the works. The capacity of the new designed train station represents an increase of 30-40 thousand passengers per day. Total capacity is approximately 100,000 passengers per day. However, construction activity in the area is limited by the flood risk factor. It is an effort to eliminate this risk with elements inspired by nature. These solutions include for example widening profle of the river , determining floodplains in such a way as to maintain access to the river. The diploma thesis offers a possible view of the architectural solution of the new railway station and its public spaces. The entrance hall of the station is located at one end of the visual axis, which is represented by the considered boulevard. The dominant building on the opposite side is the Cathedral of St. Peter and Paul. The requirements and location of the new main station mean an assumption for the creation of a new city icon. The iconic vaulted structure, which runs across the railway bridge, refers to the former glory and fame of the city. The curve of catenary arch used in the profile of vault is a symbol for the new station. The new station represents a significant impulse not only for the development of Brno, but especially for the development of new South district. The construction of the trade fairs complex a hundred years ago had a similer effect.
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Chen, Chun-Jung, and 陳俊榮. "The design and implementation of a high density light curtain system." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/99714319579847187969.

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碩士
龍華科技大學
電子工程研究所
99
This paper proposes a high density light curtain system for production automation or recreation. The light curtain system consists of light curtains modules, light curtain controller, Bluetooth module and a personal computer to control all the interactions between users and the light curtain system. The system features high sensor density for detecting of small objects, modularized design for easy extension and multi-channels for data transfer. In order to detect small objects of 20 mm in diameter, the optical receivers and transmitters are placed alternately and a photoelectric multiplexing scheme is adopted. In this paper, the hardware and firmware design of the light curtain controller as well as the software design for the personal computer will be described in detail.
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Du, Cheng Wei, and 杜承韋. "Simulate The Growth of Photosynthetic Bacteria in The Tank Bubble Curtain on The LED Light Intensity Attenuation Experimental Study." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/s453ny.

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碩士
國立虎尾科技大學
光電與材料科技研究所
102
This study investigated the effect of different light sources on the bubble culture of photosynthetic bacteria, experiment with three kinds of light-emitting diode red, white, blue, LED light source to simulate different body into different modes of rectangular slot to discuss the distribution of LED light intensity inside the photosynthetic bacteria illumination effects. Rectangular tank influence in different media (air, water, gas and liquid) measured in the study found the illumination light source and optical quantum aqueous medium for the three media article explores the strongest intensity of light, followed by gas-liquid mixed media, and finally is the air medium. Three light illumination and light quantum Comparison from large to small are: white, blue, red, gas-liquid mixed media results slightly lower than the water medium light intensity light intensity, but the gap between the two is very small.
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Books on the topic "Light Curtains"

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Lights! Curtains! Cows! Toronto: J. Lorimer, 2009.

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Philip, Walters, and Balengarth Jane, eds. Light through the Curtain. Tring: Lion, 1985.

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Naylor, Clare. The first assistant: A continuing tale from behind the Hollywood curtain. New York: Viking, 2006.

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Naylor, Clare. The first assistant: A continuing tale from behind the Hollywood curtain. London: Pan, 2007.

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Naylor, Clare. The first assistant: A continuing tale from behind the Hollywood curtain. New York: Viking, 2006.

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TOLES, GEORGE. Curtains of Light. State University of New York Press, 2022.

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Toles, George. Curtains of Light: Theatrical Space in Film. State University of New York Press, 2021.

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executive, Health and safety. Application of Electro-sensitive Protective Equipment Using Light Curtains and Light Beam Devices to Machinery. 2nd ed. Health and Safety Executive (HSE), 1999.

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Adams, Karin. Lights! Curtains! Cows! James Lorimer & Company Ltd., Publishers, 2014.

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Walters and Bengart. Light Thru the Curtain. Lion Publishing Corporation, 1985.

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Book chapters on the topic "Light Curtains"

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Wang, Jian, Joseph Bartels, William Whittaker, Aswin C. Sankaranarayanan, and Srinivasa G. Narasimhan. "Programmable Triangulation Light Curtains." In Computer Vision – ECCV 2018, 20–35. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01219-9_2.

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Ancha, Siddharth, Yaadhav Raaj, Peiyun Hu, Srinivasa G. Narasimhan, and David Held. "Active Perception Using Light Curtains for Autonomous Driving." In Computer Vision – ECCV 2020, 751–66. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58558-7_44.

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Hasoon, Feras N., Mustafa Khalaf Aal Thani, Hilal A. Fadhil, Geetha Achuthan, and Suresh Manic Kesavan. "Design Smart Curtain Using Light-Dependent Resistor." In Intelligent Sustainable Systems, 179–90. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2894-9_14.

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Steiner, Thomas, Rémi Ronfard, Pierre-Antoine Champin, Benoît Encelle, and Yannick Prié. "Curtains Up! Lights, Camera, Action! Documenting the Creation of Theater and Opera Productions with Linked Data and Web Technologies." In Engineering the Web in the Big Data Era, 533–43. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19890-3_34.

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Dumas, Alexandre. "Valentine." In The Count of Monte Cristo. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199219650.003.0104.

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The night-light continued to burn on the chimney-piece, exhausting the last drops of oil which floated on the surface of the water; a dull and dismal light was shed over the bedclothes and curtains surrounding the young girl. All noise in the streets had...
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Zola, Émile. "Chapter 1." In A Love Story. Oxford University Press, 2017. http://dx.doi.org/10.1093/owc/9780198728641.003.0003.

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The night light in the blue-tinged glass on the mantelshelf burned behind a book, which cast a shadow across half the bedroom. The quiet glow spreading over the bedside table and the chaise longue, bathed the wide folds of the velvet curtains, and flooded...
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Zola, Émile. "Chapter I." In The Sin of Abbé Mouret. Oxford University Press, 2017. http://dx.doi.org/10.1093/owc/9780198736639.003.0021.

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Across the two wide windows, carefully drawn calico curtains filtered the white light of early dawn into the room. It was a very big room with a high ceiling, furnished with antique Louis XV furniture of painted white wood, and decorated with red flowers...
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Zola, Émile. "Chapter II." In The Sin of Abbé Mouret. Oxford University Press, 2017. http://dx.doi.org/10.1093/owc/9780198736639.003.0022.

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The next day the fine weather had gone, and it was raining. Serge, whose fever had returned, spent a day of suffering, with his eyes fixed despairingly on the curtains, from which came only a sinister light, cavern-like and grey as ash. He could...
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Chopin, Kate. "The Kiss." In The Awakening. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199536948.003.0026.

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It was still quite light out of doors, but inside with the curtains drawn and the smouldering fire sending out a dim, uncertain glow, the room was full of deep shadows. Brantain sat in one of these shadows; it had overtaken him and he did...
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Twain, Mark. "Chapter XLII War!" In A Connecticut Yankee in King Arthur's Court. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199540587.003.0043.

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I found Clarence, alone in his quarters, drowned in melancholy; and in place of the electric light, he had re-instituted the ancient rag-lamp, and sat there in a grisly twilight with all curtains drawn tight. He sprang up and rushed for me eagerly, saying: “Oh,...
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Conference papers on the topic "Light Curtains"

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Bartels, Joseph, Jian Wang, William Whittaker, and Srinivasa Narasimhan. "Agile Depth Sensing Using Triangulation Light Curtains." In 2019 IEEE/CVF International Conference on Computer Vision (ICCV). IEEE, 2019. http://dx.doi.org/10.1109/iccv.2019.00799.

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Chan, Dorian, Srinivasa G. Narasimhan, and Matthew O'Toole. "Holocurtains: Programming Light Curtains via Binary Holography." In 2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2022. http://dx.doi.org/10.1109/cvpr52688.2022.01736.

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Hsu, Yu-Hsiang, Yi-Yung Chen, and Allen Jong-Woei Whang. "Secondary optical design for safety light curtains." In SPIE OPTO, edited by Klaus P. Streubel, Heonsu Jeon, Li-Wei Tu, and Norbert Linder. SPIE, 2012. http://dx.doi.org/10.1117/12.909873.

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Ancha, Siddharth, Gaurav Pathak, Srinivasa Narasimhan, and David Held. "Active Safety Envelopes using Light Curtains with Probabilistic Guarantees." In Robotics: Science and Systems 2021. Robotics: Science and Systems Foundation, 2021. http://dx.doi.org/10.15607/rss.2021.xvii.045.

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Raaj, Yaadhav, Siddharth Ancha, Robert Tamburo, David Held, and Srinivasa G. Narasimhan. "Exploiting & Refining Depth Distributions with Triangulation Light Curtains." In 2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2021. http://dx.doi.org/10.1109/cvpr46437.2021.00735.

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6

Mills, Brantley, and Clifford K. Ho. "Numerical Evaluation of Novel Particle Release Patterns in High-Temperature Falling Particle Receivers." In ASME 2017 11th International Conference on Energy Sustainability collocated with the ASME 2017 Power Conference Joint With ICOPE-17, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/es2017-3689.

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Novel particle release patterns have been proposed as a means to increase the thermal efficiency of high-temperature falling particle receivers. Innovative release patterns offer the ability to utilize light-trapping and volumetric heating effects as a means to increase particle temperatures over a conventional straight-line particle release pattern. The particle release patterns explored in this work include wave-like patterns and a series of parallel curtains normal to the incident irradiation that have shown favorable results in previous numerical studies at lower particle temperatures. A numerical model has recently been developed of an existing falling particle receiver at the National Solar Thermal Test Facility at Sandia National Laboratories to evaluate these patterns at elevated temperatures necessary to evaluate radiative and convective losses. This model has demonstrated that thermal efficiency gains of 2.5–4.6% could be realized using these patterns compared to the conventional planar release depending on the particle mass flow rate. Increasing the number of parallel curtains, increasing the spacing between curtains, and shifting the particle mass flow rate deeper in the receiver cavity was also found to increase the thermal efficiency. These effects became less significant as the particle mass flow rate increased.
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Sasajima, Y., Y. Miyake, K. Ogasawara, Y. Oe, and N. Yoshizawa. "SOFTNESS OF LIGHT PASSING THROUGH WINDOWS AND ITS RELATIONSHIP WITH LUMINANCE GRADIENT." In CIE 2021 Conference. International Commission on Illumination, CIE, 2021. http://dx.doi.org/10.25039/x48.2021.po47.

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Architects and users frequently use window coverings, such as frosted glasses, shoji screens, and lace curtains to create high quality of light. This kind of light is sometimes called “soft light”, and most people feel that it is required in residential spaces. However, the term “soft light” is somewhat vague, and we do not accurately understand what is the “soft light” and how we can create it. The aim of this research is to derive a physical indicator of "ambiguity of brightness-darkness boundary”, which is one of factors for judging the softness of light. We conducted a subjective experiment with 53 evaluation items including the “ambiguity of brightness-darkness boundary” in various actual daylighting spaces. It was found that "ambiguity of brightness-darkness boundary", was not highly evaluated when the average value of the luminance change rate on the wall is high.
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Ortega, Jesus D., Clifford K. Ho, Guillermo Anaya, Peter Vorobieff, and Gowtham Mohan. "A Non-Intrusive Particle Temperature Measurement Methodology Using Thermogram and Visible-Light Image Sets." In ASME 2021 15th International Conference on Energy Sustainability collocated with the ASME 2021 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/es2021-63791.

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Abstract The measurement of particle plume and curtain temperatures in particle-laden gravity-driven flows presents a unique challenge to thermometry due to the flow’s transient and stochastic nature. Earlier attempts to assess the bulk particle temperature of a plume using intrusive and non-intrusive methods have produced very limited success. Here we describe a non-intrusive method using a high-speed IR camera (ImageI8300 from Infratec) and a visible-light camera (Nikon D3500) to produce indirect particle temperature measurements. The IR camera produces thermogram sets mapping the apparent particle temperature, while the visible-light image sets allow for the calculation of the plume opacity as a function of flow discharge position. An in-house post-processing algorithm based on Planck’s radiation theory was developed to compute the true particle temperature which is a function of the apparent temperature (thermograms) and the plume opacity obtained from the visible-light images. To validate these results, a series of lab-scale tests generating particle curtains of known dimensions at various temperatures were performed. The lab-scale tests were conducted using a small particle receiver which is equipped with thermocouples to measure the temperature directly. Using the recorded thermocouple data, a particle temperature function can be derived empirically, based on the lumped capacitance model for a free-falling sphere. The empirical particle temperature function is then compared with the temperature data measured using the methodology outlined in this work yielding agreement of the bulk particle temperature of the plume. The methods described here will be developed further to estimate the heat losses from the falling particle receiver at Sandia National Labs.
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Pope, G., M. Lerjen, S. Mullener, S. Schlapfer, T. Walti, J. Widmer, and C. Studer. "Light curtain localization via compressive sensing." In ICASSP 2013 - 2013 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2013. http://dx.doi.org/10.1109/icassp.2013.6638117.

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Hess, Richard L., and Aswin Rangaswamy. "Light Weight Curtain Walls: Problems and Recent Trends." In Structures Congress 2000. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40492(2000)188.

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