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Thematische Bibliographien / Length of sunlight / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Length of sunlight“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 1. Februar 2022

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1

Benedetti, Francesco, Cristina Colombo, Barbara Barbini, Euridice Campori, and Enrico Smeraldi. "Morning sunlight reduces length of hospitalization in bipolar depression." Journal of Affective Disorders 62, no. 3 (2001): 221–23. http://dx.doi.org/10.1016/s0165-0327(00)00149-x.

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Lilabati, Laishram, and U. K. Sahoo. "Germination and Growth Behaviour of Seedlings of Emblica ofƒicinalis Gaertn under Different Light and Nutrient Regimes in Field Conditions." Science & Technology Journal 4, no. 2 (2016): 98–104. http://dx.doi.org/10.22232/stj.2016.04.02.03.

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Emblica officinalis Gaertn. is an important non-timber forest product plant which is known in improving livelihood of the people of north-east India. This plant is widely used in the Indian system of medicines and believed to increase the body immunity against diseases. A trial was made to assess the initial growth performance of seedlings of E. officinalis under three light regimes viz. Open-100% ambient sunlight (FAL), partial-80% ambient sunlight (PAL) and deep shade-40% ambient sunlight (DAL) and four nutrient conditions (NPK, saw dust biochar, cowdung and untreated) during a 3-months peri

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Mo, Yan, Guangyong Li, Dan Wang, Jiandong Wang, Haidong Chai, and Xiuming Zou. "Mechanism of Sunlight Damage on Drip Tape by Pendant Droplets in Mulched Drip Irrigation." Transactions of the ASABE 61, no. 6 (2018): 1969–75. http://dx.doi.org/10.13031/trans.12979.

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Abstract. Drip irrigation under mulch has been applied in China for nearly 20 years, but sunlight damage from the lens effect through droplets beneath clear plastic mulch is always a problem that cannot be ignored. Droplet volume and mulch wettability affect the geometric parameters of the pendant droplets. Changes in geometric parameters were experimentally investigated by analyzing side-view images of droplets. Models were built to predict droplet focal length and light-gathering power based on the geometric parameters. A comparison between numerical and optical experimental results suggeste

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Senthilnathan, Anoja, D. M. S. N. Dissanayake, G. T. D. Chandrakumara, et al. "Akaganeite nanorices deposited muscovite mica surfaces as sunlight active green photocatalyst." Royal Society Open Science 6, no. 3 (2019): 182212. http://dx.doi.org/10.1098/rsos.182212.

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Thin films of akaganeite [FeO(OH)] nanorices deposited muscovite mica (ANPM) surfaces are synthesized using the facile urea assisted controlled self-assembly technique. The synthesized materials are characterized using scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy, atomic force microscopy, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy and thermogravimetric analysis (TGA). The prepared nanorices on mica surfaces show average particle length and width of 200 and 50 nm, respectively. Synthesized material acts as an efficient photocatalyst

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Schluckebier, J. G., and C. A. Martin. "Effects of Above-Ground Pot-in-Pot (PIP) Placement and Humic Acid Extract on Growth of Crape Myrtle." Journal of Environmental Horticulture 15, no. 1 (1997): 41–44. http://dx.doi.org/10.24266/0738-2898-15.1.41.

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Abstract Rooted cuttings of crape myrtle (Lagerstroemia indica L. × L. fauriei Koehne ‘Muskogee’) were potted into 3.8 liter (1 gal) black polyethylene containers and subjected for two months to one of three above-ground shielding treatments; containers placed pot-in-pot (PIP) for two months, containers exposed to direct sunlight for two months, or containers placed PIP for one month and then exposed to sunlight for one month (PIP/exposed). Mean daily maximum temperatures in rooting substrate of containers exposed to sunlight were as much as 16C (29F) higher than PIP containers. Plants in cont

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Hawley, A. L., and H. J. Fallowfield. "Pond walls: inclined planes to improve pathogen removal in pond systems for wastewater treatment?" Water Science and Technology 78, no. 1 (2018): 31–36. http://dx.doi.org/10.2166/wst.2018.269.

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Abstract Attenuation of sunlight in wastewater treatment ponds reduces the depth of the water exposed to disinfecting irradiances. Shallow pond depth with paddlewheel rotation increases exposure of pathogens to sunlight in high rate algal ponds. Generation of thin films, using pond walls as inclined planes, may increase inactivation of pathogens by increasing sunlight exposure. The performance of a laboratory based model system incorporating an inclined plane (IP) was evaluated. F-RNA bacteriophage, in tap water or wastewater, was exposed to sunlight only on the IP with the bulk water incubate

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Marler, Thomas E., Bruce Schaffer, and Jonathan H. Crane. "Developmental Light Level Affects Growth, Morphology, and Leaf Physiology of Young Carambola Trees." Journal of the American Society for Horticultural Science 119, no. 4 (1994): 711–18. http://dx.doi.org/10.21273/jashs.119.4.711.

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Growth and leaf physiology responses of container-grown `Arkin' carambola (Averrhoa carambola L.) trees to long-term exposure of ≈25%, ≈50%, or 100% sunlight were studied in four experiments in Guam and Florida. Shading increased rachis length and leaflet area, and decreased leaflet thickness. Shaded trees also had a more horizontal branch orientation. Shading reduced dark respiration (Rd) and light compensation and saturation points but increased chlorophyll concentration and N-use efficiency. Light-saturated net CO2 assimilation (A) was not affected by developmental light level. Trees in ful

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Mizell, R. F., D. E. Schiffhauer, and J. L. Taylor. "MORTALITY OF TETRANYCHUS URTICAE KOCH (ACARI: TETRANYCHIDAE) FROM ABAMECTIN RESIDUES: EFFECTS OF HOST PLANT, LIGHT, AND SURFACTANTS." Journal of Entomological Science 21, no. 4 (1986): 329–37. http://dx.doi.org/10.18474/0749-8004-21.4.329.

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Residues of abamectin (avermectin, Avid), 15 ppm; abamectin + Leaf Act 80, 15 + 25 ppm; abamectin + Sunspray oil, 15 + 25 ppm, and a water control were evaluated for length of control of twospotted spider mite, Tetranychus urticae Koch, on 3 host species: azalea, Rhododendron × ‘Red Ruffle’; lima bean, Phaseolus limensis var. limenus L. H. Bailey cv. ‘Henderson’ bush; and peach, Prunus persica L. Batsch cv. ‘Nemaguard’; and under sunlight and fluorescent light regimes. Abamectin alone or in combination with the surfactants, 21 days post treatment, resulted in 42.6 – 91.8% and 88 – 93% mite mor

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Hou, Lin Rui, and Chang Zhou Yuan. "Facile Fabrication of Taper-Like BiVO₄ Nanorods with High Photocatalytic Property under Sunlight Irradiation." Advanced Materials Research 96 (January 2010): 87–92. http://dx.doi.org/10.4028/www.scientific.net/amr.96.87.

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We report the synthesis of the taper-like BiVO4 nanorods by employing a solid-state grinding synthetic strategy. The X-ray diffraction (XRD) indicates that the as-prepared BiVO4 nanorods were crystallized in a monoclinic system. The diameter and length of taper-like nanorods are confirmed by the scanning electron microscopy (SEM) technology. The diameter and length of the taper-like nanorods are 100 nm and 1 μm, respectively. And the photocatalytic activity of the taper-like BiVO4 nanorods was evaluated by measuring the degradation of methylene blue (MB) in water under sunlight irradiation. MB

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Cornea-Cipcigan, Mihaiela, Doru Pamfil, Cristian Radu Sisea, and Rodica Mărgăoan. "Gibberellic Acid Can Improve Seed Germination and Ornamental Quality of Selected Cyclamen Species Grown Under Short and Long Days." Agronomy 10, no. 4 (2020): 516. http://dx.doi.org/10.3390/agronomy10040516.

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Cyclamen species (swinebread spp.) are perennial herbaceous plants which belong to the Primulaceae family, widely used as medicinal or ornamental plants. Currently, gibberellic acid (GA3), an environmentally friendly bioregulator is widely used to enhance the productivity and phenotypic characteristics of multiple ornamental crops. A dual experiment was conducted to evaluate the influence of gibberellic acid (50, 100 or 150 mg/L), on germination earliness of seeds, along with growth and ornamental quality of selected Cyclamen species. Additionally, a greenhouse experiment with long and short s

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Santos, Rafaelle Ferreira dos, Rogéria Lucio de Oliveira, Marina Gallottini, Rubens Caliento, and Dmitry José de Santana Sarmento. "Prevalence of and Factors Associated with Actinic Cheilitis in Extractive Mining Workers." Brazilian Dental Journal 29, no. 2 (2018): 214–21. http://dx.doi.org/10.1590/0103-6440201801605.

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Abstract The objective of the present study was to determine the prevalence of actinic cheilitis among extractive mining workers and factors associated with the condition, especially the relationship between clinical appearance and the length of occupational exposure to sunlight. A cross-sectional study was performed in Dona Inês, Paraíba, Brazil between 2014 and 2015. A clinical examination, clinical photography and a questionnaire were applied to 201 extractive mining workers. The T-student’s, ANOVA one-way, Fisher’s exact and Pearson chi-squared tests were performed and the significance lev

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Wang, Wei Liang, Chuan Xi Yang, Feng Zhang, Ping Li, and Guan Wei Cui. "Remarkable Sunlight Photocatalytic Activity due to Synergetic Effect of ZnO with Cu." Key Engineering Materials 727 (January 2017): 388–94. http://dx.doi.org/10.4028/www.scientific.net/kem.727.388.

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The ZnO nanorod was synthesized by the hydrothermal method, and Cu/ZnO nanorod was synthesized by modifying the prepared ZnO nanorod. The TEM was used to characterize the morphology and microstructure for ZnO and Cu/ZnO nanorod. The length of nanorod ZnO was about 700-800 nm, and the diameter about 40-50 nm. There was no change of ZnO in length and diameter when doped with Cu. The degradation of methylene blue (MB) in an aqueous solution under sunlight irradiation was carried out to evaluate the photocatalytic activity. The Cu/ZnO nanorod shows significantly higher photocatalytic activity (99.

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Costa, Larissa Corrêa do Bomfim, José Eduardo Brasil Pereira Pinto, Evaristo Mauro de Castro, Eduardo Alves, Suzan Kelly Vilela Bertolucci, and Louise Ferreira Rosal. "Effects of coloured shade netting on the vegetative development and leaf structure of Ocimum selloi." Bragantia 69, no. 2 (2010): 349–59. http://dx.doi.org/10.1590/s0006-87052010000200012.

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The objective of this work was to investigate the effects of shading on the growth and development of the medicinal plant Ocimum selloi after 90 days. Seedlings were maintained under three different light treatments, namely, full sunlight vs coloured shade treatments provided by red and blue ChromatiNet® 50% coloured netting. After 90 days of cultivation, height, stem diameter, petiole length, total leaf area (TLA), specific leaf area (SLA), leaf area ratio (LAR) and leaf weight ratio (LWR) of each plant hare measured. Microscopic examination of leaf sections were conducted in order to determi

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Gramig, Greta G., and David E. Stoltenberg. "Adaptive Responses of Field-Grown Common Lambsquarters (Chenopodium album) to Variable Light Quality and Quantity Environments." Weed Science 57, no. 3 (2009): 271–80. http://dx.doi.org/10.1614/ws-08-120.1.

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Field experiments were conducted to determine whether exposure to reduced red : far-red light ratios (R : FR) typical of crop–weed environments was associated with adaptive changes in morphology, productivity, and fecundity of common lambsquarters. Plants were grown in reduced or ambient R : FR environments (both in full sunlight) until initiation of flowering, after which plants were grown in full sunlight or partial shade. At initiation of flowering, plants that had been exposed to reduced R : FR exhibited greater specific leaf area, stem elongation, main stem leaf area, specific stem length

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Omar, Fatin Saiha, Huang Nay Ming, Syed Muhamad Hafiz, and Lim Hong Ngee. "Microwave Synthesis of Zinc Oxide/Reduced Graphene Oxide Hybrid for Adsorption-Photocatalysis Application." International Journal of Photoenergy 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/176835.

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This work reports on synthesis of zinc oxide/reduced graphene oxide (ZnO/rGO) nanocomposites in the presence of diethylenetriamine (DETA) via a facile microwave method. The X-ray diffraction (XRD) patterns of the nanocomposites correspond to the ZnO hexagonal phase wurtzite structure. The high-resolution transmission electron microscopy (HRTEM) images revealed that the ZnO nanorods, with an average length : diameter ratio of 10, were successfully deposited on the rGO sheets. Under the irradiation of sunlight, the nanocomposites showed enhanced adsorption-photocatalysis by more than twofold and

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Lee, Gyeongjun, Jiyong Kim, Sungchul Kim, and Jungho Kim. "Effect of the Incoherent Encapsulation Layer and Oblique Sunlight Incidence on the Optical and Current-Voltage Characteristics of Surface-Textured Cu(In,Ga)Se2 Solar Cells Based on the Angle-Dependent Equispaced Thickness Averaging Method." Applied Sciences 11, no. 5 (2021): 2121. http://dx.doi.org/10.3390/app11052121.

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In general, the optical and electrical characteristics of Cu(In,Ga)Se2 (CIGS) solar cells have been studied under the condition that sunlight is normally incident from the air to the CIGS solar cell having no thick front encapsulation layers. To obtain the calculation results in a realistic module application, we calculate the optical and current–voltage (J–V) characteristics of surface-textured CIGS solar cells by simultaneously considering the thick front encapsulation layers and oblique sunlight incidence. Using the proposed angle-dependent equispaced thickness averaging method (ADETAM), we

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Qiu, Fanglv, Zi Wang, Hongjun Chen, et al. "Sodium Dodecyl Benzene Sulfonate-assisted Synthesis and Natural Sunlight Photocatalytic Activity of La Bismuthate Nanorods." Current Nanoscience 16, no. 5 (2020): 805–15. http://dx.doi.org/10.2174/1573413715666191212153902.

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Background: Removal of the organic pollutants using the photo-catalysts by the photocatalytic treatment process under natural sunlight irradiation has attracted great attention owing to the complete destruction of the organic pollutants. The La bismuthate nanorods possess good photocatalytic performance for the removal of the methylene orange (MO) under the sunlight irradiation. Objective: The aim is to synthesize La bismuthate nanorods by hydrothermal method and research the photocatalytic performance of the La bismuthate nanorods for MO degradation under sunlight irradiation. Methods: La bis

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Chouchene, Bilel, Tahar Ben Chaabane, Lavinia Balan, et al. "High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis." Beilstein Journal of Nanotechnology 7 (September 26, 2016): 1338–49. http://dx.doi.org/10.3762/bjnano.7.125.

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Ce-doped ZnO (ZnO:Ce) nanorods have been prepared through a solvothermal method and the effects of Ce-doping on the structural, optical and electronic properties of ZnO rods were studied. ZnO:Ce rods were characterized by XRD, SEM, TEM, XPS, BET, DRS and Raman spectroscopy. 5% Ce-doped ZnO rods with an average length of 130 nm and a diameter of 23 nm exhibit the highest photocatalytic activity for the degradation of the Orange II dye under solar light irradiation. The high photocatalytic activity is ascribed to the substantially enhanced light absorption in the visible region, to the high surf

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Yue, Chunlei, Jie Chang, Kuihong Wang, and Yinmei Zhu. "Response of clonal growth in Phyllostachys praecox f. prevernalis to changing light intensity." Australian Journal of Botany 52, no. 2 (2004): 171. http://dx.doi.org/10.1071/bt02028.

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The morphological plasticity and biomass allocation pattern of clones of Phyllostachys praecox f. prevernalis were studied at four light intensities of 100, 70, 50 and 30% of sunlight. The results showed that ramet number and total biomass of clones were positively linearly correlated with light intensity. Under different light intensities, total rhizome length of clones and length of spacers were significantly different, indicating that rhizome and spacer both had considerable morphological plasticity. Internode length and branching angle did not differ significantly among different treatment

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Wullandari, Putri, Arif Rahman Hakim, and Widiarto Sarwono. "Performance Test of Solar-Powered Ice Maker: Case Study in South Lampung." E3S Web of Conferences 43 (2018): 01018. http://dx.doi.org/10.1051/e3sconf/20184301018.

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The performance test of solar powered ice maker is being held at the fish auction spot of Kramat, South Lampung for 6 hours. The spesification of ice maker are: having the production capacity of 105 – 120 kg/ day, producing flakes ice with 2 x 3 x 3 mm dimension. The spesification of solar panel are: having maximum power of 200 W, 1,32 m length, 0,992 m width, and 1,3094 m2 area. In this test, we used 9 solar panel with the total area of 11,7846 m2. During the performance test, the intensity of sunlight, battery voltage, battery capacity, power input from solar panel, battery discharge current

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Kashimada, Koji, Naoyuki Kamiko, Kazuo Yamamoto, and Shinichiro Ohgaki. "Assessment of photoreactivation following ultraviolet light disinfection." Water Science and Technology 33, no. 10-11 (1996): 261–69. http://dx.doi.org/10.2166/wst.1996.0683.

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Photoreactivation of microorganisms following UV disinfection is one of the research topics of interest in assessing the performance of UV disinfection, because there is little consensus on how the visible light intensity relates to the photoreactivation rate and the maximum survival in wastewater treatment processes. Apparent photoreactivation by a fluorescent lamp was observed in case of indicator bacteria (heterotrophic bacteria, coliform bacteria, fecal coliforms) in raw sewage, but not E. coli B and E. coli K12 A/λ(F+). Inactivation of fecal coliform was observed simultaneously during pho

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Beghin, Laurent, Jérémy Vanhelst, Elodie Drumez, et al. "Influence of meteorological conditions on physical activity in adolescents." Journal of Epidemiology and Community Health 74, no. 4 (2020): 395–400. http://dx.doi.org/10.1136/jech-2019-212459.

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BackgroundIt has been shown that meteorological conditions and season affect physical activity (PA) during adolescence. Today, meteorological conditions have never been combined to study their influence on PA level in a single sample of a large adolescent multicountries population. The aim of this study was to explore the influence of meteorological conditions on PA in adolescents from several European countries.MethodsThe study included 2024 healthy adolescents aged 12.5–17.4 years who participated in the Healthy Lifestyle in Europe by Nutrition in Adolescence cross-sectional study. Participa

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Liu, Bo, Qingqing Liu, Stefani Daryanto, et al. "Seedling emergence and early growth of Chinese fir under different light levels and seed positions: implications for natural regeneration." Canadian Journal of Forest Research 48, no. 9 (2018): 1034–41. http://dx.doi.org/10.1139/cjfr-2017-0412.

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Chinese fir, Cunninghamia lanceolata (Lamb.) Hook. (Taxodiaceae), is an evergreen conifer primarily distributed in southern China. This species exhibits very poor natural regeneration, possibly due to low light and a thick litter layer. To improve the understanding of the natural regeneration capacity of Chinese fir, in this study, we conducted a shade house experiment to determine the optimum light requirements and seed positions for seedling emergence and early growth. The experiment involved five light levels (100%, 60%, 40%, 15%, 5% of full sunlight) and four seed positions (1 cm beneath t

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Mao, Qianjun, Liya Zhang, and Hongjun Wu. "Study on Concentrating Characteristics of a Solar Parabolic Dish Concentrator within High Radiation Flux." International Journal of Photoenergy 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/787280.

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Concentrating characteristics of the sunlight have an important effect on the optical-thermal conversion efficiency of solar concentrator and the application of the receiver. In this paper, radiation flux in the focal plane and the receiver with three focal lengths has been investigated based on Monte Carlo ray-tracing method. At the same time, based on the equal area-height and equal area-diameter methods to design four different shape receivers and numerical simulation of radiation flux distribution characteristics have also been investigated. The results show that the radiation flux in the

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TURCOTTE, GILLES, and ANDRÉ GOSSELIN. "INFLUENCE DU MODE DE DISTRIBUTION D’UN ÉCLAIRAGE D’APPOINT (HPS) ET DE LA PHOTOPÉRIODE SUR LA CROISSANCE ET LES RENDEMENTS DU CONCOMBRE DE SERRE." Canadian Journal of Plant Science 68, no. 2 (1988): 535–42. http://dx.doi.org/10.4141/cjps88-065.

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Eight light treatments were compared to determine the distribution and duration of supplementary lighting (HPS) that are best suited for the production of cucumber (Cucumis sativus L.) in winter. Seven groups of plants were exposed to supplementary lighting in two ways: with day length prolonged without interruption or with nights interrupted, producing photoperiods of 14, 16, 18, or 20 h. A control group was exposed only to sunlight. For a given duration of lighting, the type of light distribution affected neither the vegetative growth nor the early yield of the greenhouse cucumber. Plants ex

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Nugrahani, Elita Fidiya, Reza Arraffi Birahmatika, Epri Wahyu Pratiwi, and Sekartedjo K. "Design of Solar Transmission System using Fiber Optic for Indoor Lighting." KnE Energy 2, no. 2 (2015): 59. http://dx.doi.org/10.18502/ken.v2i2.358.

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<p>Transmission of fiber solar lighting system is a lighting system using sunlight as a source. The system consists of two main components, there are: solar collectors and optical fiber. Solar collector is used to collect and focus sunlight into the focal point. Sunlight that received by collector is transmitted by optical fiber into the room, primarily through efficiency of the collector system. In this final project, we designed the transmission systems via optical fiber for lighting on the Photonics Laboratory ITS. Transmission of solar lighting systems used parabolic collector as a m

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Trenkenshu, Rudolf P., Alexander S. Lelekov, and Anatoliy A. Chekushkin. "Application of linear splines to simulate daily changes in insolation." Issues of modern algology (Вопросы современной альгологии), no. 3(24) (2020): 42–49. http://dx.doi.org/10.33624/2311-0147-2020-3(24)-42-49.

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The paper shows the possibility of using linear splines in modeling the daily change in solar radiation. The calculations were based on the generally accepted cosine expression used for modeling insolation changes on the surface of lakes and the ocean. The equation parameters are set for the conditions of Sevastopol (44°35'N, 33°30' E): the maximum height of the sun above the horizon is about 68 degrees, the day length is 15 hours. The model curve was divided into three sections. For the early morning hours and late evening, the sunlight intensity is low and is below the “compensation point” o

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Herrera, Esteban A., and Jesus Arreola. "247 Sunlight Penetration Before and After Pecan Orchard Thinning: Its Influence on Shoot Growth, Nut Production and Quality." HortScience 34, no. 3 (1999): 484F—485. http://dx.doi.org/10.21273/hortsci.34.3.484f.

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This study was performed during 1995, 1996, and 1997 seasons in a mature pecan orchard thinned 25% in 1993, 1994, or 1995. In the orchard section thinned in 1994, more trees were removed in 1995 to reach 50% thinning. Shoot length in eight sides of the canopy periphery was measured in each growing season. Shoot growth was increased in thinned orchard sections compared with the unthinned orchard areas. Shoot growth during 1995 and 1996 was higher for trees sections thinned 25% in 1993 and 1994. Regardless of thinning years, shoot length was lower in the north side than in other canopy sides. A

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Dang, Q. L., V. J. Lieffers, and R. L. Rothwell. "Effects of summer frosts and subsequent shade on foliage gas exchange in peatland tamarack and black spruce." Canadian Journal of Forest Research 22, no. 7 (1992): 973–79. http://dx.doi.org/10.1139/x92-130.

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In this study, we examined the effect of summer frost on light-saturated net photosynthesis (Pnet) and related parameters in 20-year-old black spruce (Piceamariana (Mill.) B.S.P.) and tamarack (Larixlaricina (Du Roi) K. Koch) at a peatland site in central Alberta. Summer frosts were simulated in the field using a self-contained freezing chamber. Some trees were shaded from direct sunlight after freezing. Shaded trees received about 20% of full sunlight at midday. We found that the response of photosynthesis consisted of two phases: a depression phase, where photosynthesis declined progressivel

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Lee, David W. "Simulating forest shade to study the developmental ecology of tropical plants: juvenile growth in three vines in India." Journal of Tropical Ecology 4, no. 3 (1988): 281–92. http://dx.doi.org/10.1017/s0266467400002844.

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ABSTRACTBoth light quantity and quality affect the development and autoecology of plants under shade conditions, as in the understorey of tropical forests. However, little research has been directed towards the relative contributions of lowered photosynthetic photon flux density (PPFD) versus altered spectral distributions (as indicated by quantum ratios of 660 to 730 nm, or R:FR) of radiation underneath vegetation canopies. A method for constructing shade enclosures to study the contribution of these two variables is described. Three tropical leguminous vine species (Abrus precatonus L., Caes

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Paschoal, LRP, DP Andrade, and G. Darrigran. "How the fluctuations of water levels affect populations of invasive bivalve Corbicula fluminea (Müller, 1774) in a Neotropical reservoir?" Brazilian Journal of Biology 75, no. 1 (2015): 135–43. http://dx.doi.org/10.1590/1519-6984.09113.

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Corbicula fluminea is an invasive bivalve responsible for several environmental and financial problems around the globe. Despite the invasive potential of this species, it suffers certain restrictions in lentic environments due to natural phenomena that significantly affect its population structure (e.g. water column fluctuation and sunlight exposure). The present study addresses how temporal decline of the water level in a Neotropical reservoir and exposure to sunlight affect the population structure of C. fluminea. Samplings were carried out twice in the reservoir of Furnas Hydroelectric Pow

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Boehm, Alexandria B., Cherrie Soetjipto, and Dan Wang. "Solar inactivation of four Salmonella serovars in fresh and marine waters." Journal of Water and Health 10, no. 4 (2012): 504–10. http://dx.doi.org/10.2166/wh.2012.084.

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Sunlight-mediated disinfection of water is of interest to both the drinking and recreational water quality community of researchers due to its potential to reduce microbial contamination and waterborne illness. Photo-inactivation of enteric bacteria has primarily been investigated using Escherichia coli and laboratory strains of model bacteria. The present study sought to document the photo-inactivation of environmental isolates of Salmonella in filter-sterilized natural seawater and freshwater and to test the hypothesis that diverse Salmonella serovars decay at similar rates both within and b

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Nurdianna, Daru, Retno Bandriyati Arni Putri, and Dwi Harjoko. "Penggunaan Beberapa Komposisi Spektrum Led Pada Potensi Dan Hasil Hidroponik Indoor Selada Keriting Hijau." Agrosains: Jurnal Penelitian Agronomi 20, no. 1 (2018): 1. http://dx.doi.org/10.20961/agsjpa.v20i1.26310.

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This study aims to determine the differences in the growth response of green curly lettuce to the differentiation treatment of LED lighting with different spectrum in indoor hydroponics. The research was conducted from October to November 2017. The experimental design used was experimental with 1 lighting factor with 5 levels, there are sunlight (P0), LED 20% blue: 80% red (P1), LED 80% blue: 20% red (P2), 50% blue LED: 50 % red (P3), and 100% white daylight (P4). Observational variables included plant height, leaf number, leaf area, leaf color, total wet weight, leaf wet weight, wet root weig

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Siniarska, A., and S. Kozieł. "Association of birth weight and length with air temperature, sunlight, humidity and rainfall in the city of Warsaw, Poland." HOMO 61, no. 5 (2010): 373–80. http://dx.doi.org/10.1016/j.jchb.2010.07.001.

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Vitt, Simon, Janina E. Zierul, Theo C. M. Bakker, and Ingolf P. Rick. "Long-term UVB exposure promotes predator-inspection behaviour in a fish." Biology Letters 13, no. 12 (2017): 20170497. http://dx.doi.org/10.1098/rsbl.2017.0497.

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Ultraviolet-B radiation (UVB) reaching the earth's surface has increased due to human-caused stratospheric ozone depletion. Whereas the harmful effects of UVB on aquatic organisms are well studied at the molecular and cellular level, recent studies have also begun to address behavioural changes caused by sublethal amounts of UVB. However, the behavioural consequences of long-term exposure to ecologically relevant UVB levels over several life stages are virtually unknown, particularly with regard to predator–prey behaviour. We found increased predator-inspection behaviour together with a smalle

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Masrufa, Sadia, Anisur Rahman, Md Hasanuzzaman, Taufika Islam Anee, Md Hazrat Ali, and Mirza Hasanuzzaman. "Pre-Planting Hardening-Induced Variability in Yield Attributes and Yield of Inbreed and Hybrid Rice." Bangladesh Agronomy Journal 19, no. 1 (2016): 87–97. http://dx.doi.org/10.3329/baj.v19i1.29875.

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Short term hardening before transplanting may enhance the defence mechanism of rice seedlings against any stress during their establishment and contribute d to enhanced growth and yield. Thus, this study was conducted involving one local inbred (Pajam), one popular high yielding (BRRI dhan53) and one hybrid (BRRI hybrid dhan4) rice variety. The experiment was laid out in randomized complete block design with two factors. Seedlings were transplanted directly to the main field as a control treatment and/or subjected to four different hardenings like seedlings storage in shade, open field under s

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Xu, Tian Yue, Yu Zhang, Ke Bi, and Tie Qiang Zhang. "Simulation and Size Optimization of PbSe Quantum Dots Luminescent Solar Concentrator." Advanced Materials Research 900 (February 2014): 213–16. http://dx.doi.org/10.4028/www.scientific.net/amr.900.213.

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PbSe quantum dots have a relavively narrow absorption spectrum and they can radiate quasi monochromatic light after absorbing sunlight. Also, the emission peak can be located in the range of the strongest spectral response of monocrystal silicon solar cell by adjusting particles sizes. In this paper we apply PbSe quantum dots into luminescent solar concentrator, analyse its physical process, establish mathematical model and optimize its size with C++. The simulation results show that its photoelectric conversion efficiency is size depended, when the length and width are 200cm and 150cm, respec

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Sousa, Geocleber G. de, Sinara B. Sousa, Ana C. da S. Pereira, Virna B. Marques, Maria L. G. da Silva, and Jayrla da S. Lopes. "Effect of saline water and shading on dragon fruit (‘pitaya’) seedling growth." Revista Brasileira de Engenharia Agrícola e Ambiental 25, no. 8 (2021): 547–52. http://dx.doi.org/10.1590/1807-1929/agriambi.v25n8p547-552.

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ABSTRACT ‘Pitaya’ (Hylocereus undatus) is a fruit-bearing, climbing cactus with great food potential for the semiarid region. This study aimed to evaluate the production of ‘pitaya’ seedlings irrigated with low and high salinity water and grown in different light intensities. The experiment was conducted in a completely randomized design, in a 2 × 2 factorial arrangement, with two electrical conductivities of irrigation water: S1 - 0.3 dS m-1 (low salinity) and S2 - 5.0 dS m-1 (moderate salinity) in two environments: A1 - black net with 50% shading, and A2 - full sun, with ten replicates. The

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Messier, Christian, and Pasi Puttonen. "Growth, allocation, and morphological responses of Betulapubescens and Betulapendula to shade in developing Scots pine stands." Canadian Journal of Forest Research 25, no. 4 (1995): 629–37. http://dx.doi.org/10.1139/x95-070.

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The growth, biomass allocation, crown architecture, and leaf morphology of 50 to 200 cm tall Betulapubescens Ehrh. and Betulapendula Roth seedlings growing under eight Scots pine (Pinussylvestris L.) stands varying in age from 7 to 105 years were studied in southern Finland. The main objective of the study was to assess the degree of morphological plasticity of birch in response to understory conditions in stands of varying structure. In each of these stands, the light, water, and nutrient availability were measured. No clear trend in nutrient and water availability was found from the 7- to 10

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PRASTIWI, DYAH ISNAINI, DEDI SOEDHARMA, and BEGINER SUBHAN. "Growth of transplanted soft corals Lobophytum strictum on recirculation system with different light conditions." Bonorowo Wetlands 2, no. 1 (2012): 31–39. http://dx.doi.org/10.13057/bonorowo/w020104.

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Prastiwi DI, Soedharma D, Subhan B. 2012. Growth of transplanted soft corals Lobophytum strictum on recirculation system with different light conditions. Bonorowo Wetlands 2: 31-39. The study was conducted from August 2010 to January 2011 at the Laboratory of the Marine Science Research Center, Bogor Agricultural University, Ancol, North Jakarta using different lighting treatment at the observation pond. The first pond opened and the second pond closed using a tarpaulin. The total data of soft coral Lobophytum strictum growth was analyzed using Completely Randomized Design method. Measurements

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Li, Jing, and Yu Liu. "Study on Design Strategies for Improving Outdoor Thermal Comfort in the Cold Regions of China." Advanced Materials Research 250-253 (May 2011): 3798–801. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.3798.

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Along with the improvement of dwelling quality, the length of time and frequency of outdoor activities in winter greatly increase in the north China area, although the outdoor thermal environments are still unsatisfactory. It is necessary for both planners and architects to improve outdoor thermal environments in the cold regions of north China. This paper firstly introduces the general winter climate features in some north China cities. Then, it takes Xi'an city as an example to show the shortage of uncomfortable outdoor environment. Thirdly, the design strategies to improve outdoors thermal

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Slabejová, Gabriela, and Zuzana Vidholdová. "Photostability of Transparent Surface Coatings of Wood." Materials Science Forum 818 (May 2015): 198–201. http://dx.doi.org/10.4028/www.scientific.net/msf.818.198.

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The paper deals with the evaluation of photostability of six selected transparent surface coatings applied on veneered furniture parts. It also estimates the influence factors such as exposure to natural sunlight in the interior, the length of exposure, wood species of used veneers and type of transparent coatings. The changing colour of surface treatment was evaluated on samples stored in the interior and being exposed to natural light behind the window glass for 6 months. Significant changes were occurred on surfaces treated with transparent coatings without UV absorber. During the first thr

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Binti Haji Yassin, Siti Nur'ain, Nur Afifah Haniyyah Halidi, Soong Leong Sim, Ye Ru Liu, and James Robert Jennings. "Electron Diffusion Length and Charge Separation Efficiency in Nanostructured Ternary Metal Vanadate Photoelectrodes." Materials Science Forum 941 (December 2018): 2121–27. http://dx.doi.org/10.4028/www.scientific.net/msf.941.2121.

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Ternary metal vanadates have recently emerged as promising photoelectrode materials for sunlight-driven water splitting. Here, we show that highly active nanostructured BiVO4films can be deposited onto fluorine-doped tin oxide (FTO) substrates by a facile sequential dipping method known as successive ionic layer adsorption and reaction (SILAR). After annealing and deposition of a cobalt phosphate (Co-Pi) co-catalyst, the photoelectrodes produce anodic photocurrents (under 100 mW cm-2broadband illumination, 1.23 Vvs. RHE) in pH 7 phosphate buffer that are on par with the highest reported in the

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Rosli, Siti Azlina, Nurhaswani Alias, Nurulhuda Bashirom, et al. "Hexavalent Chromium Removal via Photoreduction by Sunlight on Titanium–Dioxide Nanotubes Formed by Anodization with a Fluorinated Glycerol–Water Electrolyte." Catalysts 11, no. 3 (2021): 376. http://dx.doi.org/10.3390/catal11030376.

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In this paper, titanium–dioxide (TiO2) nanotubes (TNTs) are formed by anodic oxidation with a fluorinated glycerol–water (85% and 15%, respectively) electrolyte to examine the effect of fluoride ion concentration, time, and applied voltage on TNT morphologies and dimensions. For fluoride ion concentration, the surface etching increases when the amount of ammonium fluoride added to the electrolyte solution increases, forming nanotube arrays with a clear pore structure. At a constant voltage of 20 V, TNTs with an average length of ~2 µm are obtained after anodization for 180 min. A prolonged ano

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Barua, Saumen, and Ujjwal Kumar Deb. "Hydrodynamics of Microalgae and CO₂ flow in a Tubular Photobioreactor and consequent effects on Microalgae growth." Rajshahi University Journal of Science and Engineering 44 (November 19, 2016): 75–83. http://dx.doi.org/10.3329/rujse.v44i0.30390.

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In biofuel technology from microalgae, the main optimal factors for microalgae cultivations are light, CO2 and temperature. As microalgae are photosynthetic microorganisms thus they convert sunlight, water and CO2 to algal biomass. We consider a two phase flow for CO2 and Microalgae suspension to understand fluid dynamics phenomena after injecting CO2 gas inside a tubular Photobioreactor (PBR).The growth rate of the microalgae cell is taken as a function of available sun light at Chittagong University of Engineering & Technology (CUET) in our study. A 20.94m long and 0.025m tubular PBR is

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Cavalcante, Fábio, Geocleber Gomes de Sousa, Márcio Henrique da Costa Freire, Elizeu Matos da Cruz Filho, Rute Maria Rocha Ribeiro, and Kelly Nascimento Leite. "Radish production under different shading screens and mulching." Comunicata Scientiae 11 (July 13, 2020): e3401. http://dx.doi.org/10.14295/cs.v11i0.3401.

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Shading Screens and mulching may provide a favorable environment for radish growing in regions of adverse climates. This work aimed to evaluate the radish productivity under the influence of different shading screens associated with the presence and absence of mulch in two different years. The experiment was carried out in two different seasons (2017 dry season and 2018 rainy season), in the vegetable garden of Liberdade campus, at the University of International Integration of Afro-Brazilian Lusophony (Unilab), municipality of Redenção-CE. The experimental design was in randomized blocks in a

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Peavey, Madeleine, Ian Goodwin, Lexie McClymont, and Subhash Chandra. "Effect of Shading on Red Colour and Fruit Quality in Blush Pears “ANP-0118” and “ANP-0131”." Plants 9, no. 2 (2020): 206. http://dx.doi.org/10.3390/plants9020206.

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Some cultivars of Pyrus communis develop mature fruit with a distinctive red blush. Investigating the patterns of pear colour development in response to sunlight has implications for orchard management of these pears. The objectives of these experiments are to study the seasonal patterns of colour development and investigate the influence of shade and sunlight exposure on the red colour and harvest quality of blush pears “ANP-0118” and “ANP-0131”. Several long, medium and short shading treatments were applied at different stages of fruit development from 28 (“ANP-0131”) and 29 (“ANP-0118”) day

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Durigon, Angelica, Jochem Evers, Klaas Metselaar, and Quirijn de Jong van Lier. "Water Stress Permanently Alters Shoot Architecture in Common Bean Plants." Agronomy 9, no. 3 (2019): 160. http://dx.doi.org/10.3390/agronomy9030160.

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The effects of water stress on crop yield through modifications of plant architecture are vital to crop performance such as common bean plants. To assess the extent of this effect, an outdoor experiment was conducted in which common bean plants received five treatments: fully irrigated, and irrigation deficits of 30% and 50% applied in flowering or pod formation stages onwards. Evapotranspiration, number and length of pods, shoot biomass, grain yield and harvest index were assessed, and architectural traits (length and thickness of internodes, length of petioles and petiolules, length and widt

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Hönninger, G., C. von Friedeburg, and U. Platt. "Multi axis differential optical absorption spectroscopy (MAX-DOAS)." Atmospheric Chemistry and Physics 4, no. 1 (2004): 231–54. http://dx.doi.org/10.5194/acp-4-231-2004.

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Abstract. Multi Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) in the atmosphere is a novel measurement technique that represents a significant advance on the well-established zenith scattered sunlight DOAS instruments which are mainly sensitive to stratospheric absorbers. MAX-DOAS utilizes scattered sunlight received from multiple viewing directions. The spatial distribution of various trace gases close to the instrument can be derived by combining several viewing directions. Ground based MAX-DOAS is highly sensitive to absorbers in the lowest few kilometres of the atmosphere an

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Hönninger, G., C. von Friedeburg, and U. Platt. "Multi Axis Differential Optical Absorption Spectroscopy (MAX-DOAS)." Atmospheric Chemistry and Physics Discussions 3, no. 6 (2003): 5595–658. http://dx.doi.org/10.5194/acpd-3-5595-2003.

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Abstract. Multi Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) is a novel measurement technique that represents a significant advance on the well-established zenith scattered sunlight DOAS instruments which are mainly sensitive to stratospheric absorbers. MAX-DOAS utilizes scattered sunlight received from multiple viewing directions. The spatial distribution of various trace gases close to the instrument can be derived by combining several viewing directions. Ground based MAX-DOAS is highly sensitive to absorbers in the lowest few kilometres of the atmosphere and vertical profile

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