Academic literature on the topic 'Effect of light on weeds'

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Journal articles on the topic "Effect of light on weeds"

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Maynard, Elizabeth T. "Effect of Light during Cultivation on Weed Emergence." HortScience 32, no. 3 (June 1997): 428F—429. http://dx.doi.org/10.21273/hortsci.32.3.428f.

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This experiment was conducted to determine whether light conditions during cultivation affect the number or species composition of emerging weeds. Plots were cultivated on 31 May 1996 under the following light conditions: 1) Ambient nighttime light (full moon) plus tractor headlights, 2) ambient nighttime light plus tractor headlights covered by transparent green film (green tractor lights), 3) ambient nighttime light with no tractor headlights, 4) ambient mid-day light. A fifth treatment was not cultivated at all, but was treated with glyphosate on 31 May to kill emerged plants. Results discu
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Yasin, Muhammad, Eva Rosenqvist, and Christian Andreasen. "The Effect of Reduced Light Intensity on Grass Weeds." Weed Science 65, no. 5 (August 14, 2017): 603–13. http://dx.doi.org/10.1017/wsc.2017.17.

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The effect of reduced light intensity on the growth and development of three common grass weeds, blackgrass, silky windgrass, and annual bluegrass, was studied. Two identical greenhouse experiments displaced in time were performed with six light levels aiming at 0%, 20%, 50%, 80%, 90%, and 95% shade corresponding to a mean daily light integral (DLI) of 12.4, 9.63, 7.13, 2.74, 0.95, and 0.69 mol m−2d−1in experiment 1 and 21.2, 18.0, 10.7, 3.71, 1.64, 1.20 mol m−2d−1in experiment 2. Climate screens of acrylic fabric were used to create the light levels. A DLI of 0.69 to 3.71 mol m−2d−1substantia
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MONDANI, Farzad, Farid GOLZARDI, Godarz AHMADVAND, Reza GHORBANI, and Rooholla MORADI. "Influence of Weed Competition on Potato Growth, Production and Radiation Use Efficiency." Notulae Scientia Biologicae 3, no. 3 (August 25, 2011): 42–52. http://dx.doi.org/10.15835/nsb336125.

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Weed management in potato production is one of the main cost and time consuming practices. Understanding the most effective time of weed control could reduce the costs and increase potato yield. Field study was conducted in the west region of Iran during 2006 to evaluate the effect of weeds damage in potato fields. Twelve treatments used consisted of six initial weed-free periods in which plots were kept free of weeds for 0, 10, 20, 30, 40 and 50 days after crop emergence (DAE), and then weeds were allowed to grow until harvest, and six initial weed-infested periods in which, weeds were allowe
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Nordby, Dawn E., Dustin L. Alderks, and Emerson D. Nafziger. "Competitiveness with Weeds of Soybean Cultivars with Different Maturity and Canopy Width Characteristics." Weed Technology 21, no. 4 (December 2007): 1082–88. http://dx.doi.org/10.1614/wt-06-190.1.

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Field studies were conducted in 2005 at five locations throughout Illinois to determine the effect of maturity date and canopy width characteristics of selected glyphosate-resistant soybean cultivars on competitive ability against weeds. Natural weed populations at all sites were allowed to compete with the soybean cultivars until the V1, V3, V5, or V7 growth stage and then removed with an application of glyphosate. Light-interception readings, weed control ratings, and soybean yield were all measured to compare cultivars. Cultivars of later maturities tended to withstand early season weed com
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Lotz, L. A. P., M. J. Kropff, and M. W. Groeneveld. "Modelling weed competition and yield losses to study the effect of omission of herbicides in winter wheat." Netherlands Journal of Agricultural Science 38, no. 4 (December 1, 1990): 711–18. http://dx.doi.org/10.18174/njas.v38i4.16559.

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Omission of application of various herbicides to winter wheat cv. Arminda, cv. Citadel, cv. Okapi, cv. Granada, cv. Sarino and cv. Tombola on clay and sandy soil in 1982-86 caused a significantly lower crop yield only when the densities of certain weed species were extremely high in spring. A dynamic model simulating the competition for light and water between broadleaved weeds and winter wheat was used to assess the observed small effects of weeds on yield in terms of the relative emergence time, physiological and morphological characteristics of weeds. Like the experiments, the simulations i
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Gallagher, Robert S., and John Cardina. "The effect of light environment during tillage on the recruitment of various summer annuals." Weed Science 46, no. 2 (April 1998): 214–16. http://dx.doi.org/10.1017/s0043174500090445.

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Weed seeds can require an exposure to light for induction of germination. Conducting tillage operations at night and thus preventing the photoinduction of germination has been proposed as a means to reduce weed emergence in agricultural systems. This research was conducted to evaluate night tillage as a weed management option and to determine which tillage operations have the greatest effect on light-mediated recruitment. Weed emergence was evaluated after conducting factorial combinations of day and night moldboard plowing and disking in the springtime from 1992 through 1995. The light enviro
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Buhler, Douglas D. "Effects of Tillage and Light Environment on Emergence of 13 Annual Weeds." Weed Technology 11, no. 3 (September 1997): 496–501. http://dx.doi.org/10.1017/s0890037x00045310.

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Seeds of many plant species require a brief exposure to light to induce germination. Modifying the light environment during soil tillage may alter weed emergence in agricultural systems. The objective of this research was to evaluate the effect of secondary tillage conducted during daylight and at night on the emergence of 13 summer annual weed species under the same soil and environmental conditions. Annual grass and large-seeded broadleaf species showed little response to light environment during tillage. However, emergence was often less when no tillage was conducted than with any tillage b
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Chen, Zhengqiang, and Zhaomin Ma. "A Review: The Survey of the Effects of Light on Weed Recognition." MATEC Web of Conferences 228 (2018): 04008. http://dx.doi.org/10.1051/matecconf/201822804008.

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Weeding is one of the important tasks in agricultural field management. With the development of society and information technology, automatic weeding has become a developing trend. The automatic recognition of weeds based visual is the important step. In this paper, the effects of lighting on green identification and weed identification algorithms are summarized. In order to improve the accuracy and stability of the identification of crops and weeds, some further worth problems in the study are also put forward. This will help further research on automatic weeding.
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Everaarts, A. P. "Effects of competition with weeds on growth, development and yield of soyabeans." Netherlands Journal of Agricultural Science 40, no. 1 (March 1, 1992): 91–107. http://dx.doi.org/10.18174/njas.v40i1.16531.

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Two field experiments were carried out in the inland Zanderij area of Suriname to study competition between soyabeans and weeds. The crop was kept weed-free or without weed control for increasing periods of time after sowing. An analysis of the growth and development of a crop with weed control and of a crop without weed control was obtained by making observations at the end of each period of time with or without weed control. Uncontrolled weed growth concentrated mainly between the rows. Competition with weeds reduced ground cover and LAI of the crop, leading to a lower weight and yield. Plan
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Johnson, Mark S., and Steven A. Fennimore. "Weed and Crop Response to Colored Plastic Mulches in Strawberry Production." HortScience 40, no. 5 (August 2005): 1371–75. http://dx.doi.org/10.21273/hortsci.40.5.1371.

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The phase out of methyl bromide has forced strawberry (Fragaria ×ananassa Duchesne) growers to consider the use of cultural methods such as colored mulches to enhance weed control. Black plastic mulch controls most weeds; however, black mulch often does not warm the soil as well as clear mulch. Soil warming with clear mulch is desirable for early season markets, but clear mulch does not control weeds. Neither black nor clear mulches combine the ideal weed control and soil warming characteristics required. Seven colored mulches, as well as clear, black and no mulch were evaluated in California
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Dissertations / Theses on the topic "Effect of light on weeds"

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Omami, Elizabeth Nabwile, of Western Sydney Hawkesbury University, of Agriculture Horticulture and Social Ecology Faculty, and School of Horticulture. "Amaranthus retroflexus seed dormancy and germination responses to environmental factors and chemical stimulants." THESIS_FAHSE_HOR_Omami_E.xml, 1993. http://handle.uws.edu.au:8081/1959.7/66.

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A large number of weed seeds in the soil persist because of seed dormancy, and depletion of the seed bank through manipulation of seed dormancy has been suggested as one of the goals in weed control. This study was designed to investigate some of the factors which control dormancy and germination in Amaranthus retroflexus seeds. Germination studies were conducted at different temperatures, and either in continuous white light or in the dark. Higher temperatures increased germination and, although light interacted with temperature, its effect on germination varied with the temperature. In an at
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Omami, Elizabeth Nabwile. "Amaranthus retroflexus seed dormancy and germination responses to environmental factors and chemical stimulants." Thesis, [S.l. : s.n.], 1993. http://handle.uws.edu.au:8081/1959.7/66.

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A large number of weed seeds in the soil persist because of seed dormancy, and depletion of the seed bank through manipulation of seed dormancy has been suggested as one of the goals in weed control. This study was designed to investigate some of the factors which control dormancy and germination in Amaranthus retroflexus seeds. Germination studies were conducted at different temperatures, and either in continuous white light or in the dark. Higher temperatures increased germination and, although light interacted with temperature, its effect on germination varied with the temperature. In an at
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Bigley, Richard Ernest. "Ecological physiology of conifer seedling and sapling suppression by, and release from, competing vegetation." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28625.

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The overall objective of this thesis was to improve our understanding of the light environment associated with two of the major deciduous competitors of commercial conifer seedlings in low elevation coastal British Columbia, and the physiological response of young conifers to specific environments and changes in the environment. Studies were conducted to investigate: 1) seasonal and herbicide-induced changes in the light regimes beneath the canopies of two brush species, 2) growth and physiology of seedlings of three conifer species in several different deciduous brush environments throughout
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Ma, Li. "Ecophysiology of the effect of red to far-red light ratio on selected weed and crop species." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63174.

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Plants growing in canopies are exposed to reduced light intensity as well as low red/far-red light ratios, a signal of impending competition. In order to advance our understanding of the eco-physiological role of red/far-red ratio in agroecosystems, growth chamber and greenhouse studies were conducted to investigate 1. the growth and morphological responses of common lamb’s-quarters (Chenopodium album L.), redroot pigweed (Amaranthus retroflexus L.) and tomato (Solanum lycopersicum L.) to different red/far-red ratios, 2. how leaf optical properties at red (660 nm) and far-red (730 nm) waveleng
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Röhrig, Manfred. "Modelling the light competition between crops and weeds." [S.l. : s.n.], 1999. http://deposit.ddb.de/cgi-bin/dokserv?idn=956719619.

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Umeda, Kai. "Effect of Halosulfuron on Rotational Crops." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/214957.

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A field test was conducted to evaluate and determine the safety of halosulfuron on typical rotational crops such as lettuce, broccoli, spinach, onion, alfalfa, barley, field corn, and melons after an initial application on cantaloupes. Halosulfuron at 0.05 or 0.1 lb AI/A applied on cantaloupes did not detrimentally affect crop stand establishment, height, or whole plant fresh weights when alfalfa, barley, spinach, lettuce, onion, and broccoli were planted at approximately 4 to 5 MAT. Cantaloupes and field corn planted at 1 YAT were not affected in establishing a stand and in growing during the
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Umeda, K., and N. Lund. "Effect of Prowl and Prefar Herbicides on Onions." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/214935.

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Significant onion height reduction was observed when Prowl (pendimethalin) and Prefar (bensulide) herbicide combinations were applied preemergence (PREE). The onions resumed growth but the height was still slightly reduced later in the growing season compared to the handweeded check and the standard herbicide treatment, Dacthal (DCPA). The onion crop stand emerged initially but later in the season, a significant crop stand reduction was observed for the higher rate of Prowl at 0.5 lb AI/A plus Prefar. A lower rate of Prowl at 0.25 lb AI/A plus Prefar also caused a reduction of the onion stand
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Fillmore, Andrew Nathan. "Droplet Size Effect on Herbicide Used in Cereals to Control Dicotyledonous Weeds." Thesis, North Dakota State University, 2014. https://hdl.handle.net/10365/27419.

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Experiments were conducted to evaluate the effect of droplet size on the efficacy of translocated and non-translocated herbicides. Translocated and non-translocated herbicides provided similar control when comparing droplet size effect on efficacy. Medium and very coarse droplet sizes gave the greatest visible injury whereas coarse-sized gave the lowest visible injury assessments for most species. However, droplet size generally did not affect contact herbicide efficacy. Overall, droplet size was not a strong factor contributing to herbicide efficacy and often, differences were only between he
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Harati, Ebrahim. "Fatigue strength of welds in 800 MPa yield strength steels : Effects of weld toe geometry and residual stress." Licentiate thesis, Högskolan Väst, Avd för tillverkningsprocesser, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-8009.

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Nowadays there is a strong demand for lighter vehicles in order to increase the pay load. Through this the specific fuel consumption is decreased, the amount of greenhouse gases is lowered and the transport economy improved. One possibility to optimize the weight is to make the components from high strength steels and join them by welding. Welding is the main joining method for fabrication of a large proportion of all engineering structures. Many components experience fatigue loading during all or part of their life time and welded connections are often the prime location of fatigue failure.Fa
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Hewitt, Cade Alan. "Effect of row spacing and seeding rate on grain sorghum tolerance of weeds." Thesis, Kansas State University, 2015. http://hdl.handle.net/2097/19784.

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Master of Science<br>Department of Agronomy<br>J. A. Dille<br>Weed control in grain sorghum has always presented a challenge to producers in the semi-arid Great Plains. Cultural control tactics such as narrowing of row spacings and increasing seeding rates can be effective control methods. The objective of this research was to determine the row spacing and seeding rates that maximizes yield while suppressing weeds. Grain sorghum row spacings of 25, 51, and 76-cm and seeding rates of 75,000, 100,000, 125,000, and 150,000 seeds ha[superscript]-1 were evaluated in Kansas at Beloit and Manhattan i
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Books on the topic "Effect of light on weeds"

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1993.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1993.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1993.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1999.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1999.

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Ritter, Ronald Lloyd. Understanding herbicide resistance in weeds. Des Plaines, Ill: Sandoz Crop Protection Corp., 1989.

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Introduction to light: The physics of light, vision, and color. Mineola, N.Y: Dover Publications, 2002.

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1940-, Barber J., ed. The Light reactions. Amsterdam: Elsevier, 1987.

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Hart, J. W. Light and plant growth. London: Unwin Hyman, 1988.

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Hart, J. W. Light and plant growth. London: Unwin Hyman, 1987.

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Book chapters on the topic "Effect of light on weeds"

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Fajkus, Matt, and Dason Whitsett. "Light and Effect." In Architectural Science and the Sun, 207–14. New York : Routledge, 2018.: Routledge, 2018. http://dx.doi.org/10.4324/9781315708041-10.

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Cohen-Tannoudji, Claude N. "The Autler-Townes Effect Revisited." In Amazing Light, 109–23. New York, NY: Springer New York, 1996. http://dx.doi.org/10.1007/978-1-4612-2378-8_11.

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Dodd, John N. "The Photoelectric Effect." In Atoms and Light: Interactions, 141–60. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-9331-4_12.

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Haghighipour, Nader. "Light Travel Time Effect." In Encyclopedia of Astrobiology, 1385–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_5301.

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Haghighipour, Nader. "Light Travel Time Effect." In Encyclopedia of Astrobiology, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_5301-4.

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Saha, Biswanath, Heena Kauser, Meena Khwairakpam, and Ajay S. Kalamdhad. "Effect and Management of Various Terrestrial Weeds—Review." In Lecture Notes in Civil Engineering, 231–38. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0990-2_17.

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Rana, Neha, Aruna V. Varanasi, and Brent A. Sellers. "Effect of Environmental Factors on Weed Germination and Management." In Biology, Physiology and Molecular Biology of Weeds, 27–44. Boca Raton, FL: CRC Press, 2017. | “A science publishers book.”: CRC Press, 2017. http://dx.doi.org/10.1201/9781315121031-3.

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Thorhallsson, Andri I. "Anode Effect Reduction at Nordural - Practical Points." In Light Metals 2015, 539–43. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093435.ch90.

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Thorhallsson, Andri I. "Anode Effect Reduction at Nordural — Practical Points." In Light Metals 2015, 539–43. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48248-4_90.

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Dando, Neal R., Lise Sylvain, Janice Fleckenstein, Ciro Kato, Vince Van Son, and Laura Coleman. "Sustainable Anode Effect Based Perfluorocarbon Emission Reduction." In Light Metals 2011, 325–28. Cham: Springer International Publishing, 2011. http://dx.doi.org/10.1007/978-3-319-48160-9_58.

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Conference papers on the topic "Effect of light on weeds"

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Bush, Ronald A., and Theodore P. Williams. "Effect of optic nerve section on retinal light damage." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.wj45.

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Sprague-Dawley rats, age 20-24 weeks, were obtained from Zivic-Miller Laboratories with unilateral intracranial optic nerve sections which did not interrupt the blood flow or any other innervation to the eye. They were then kept in uniform illumination of 1000 lx continuously for 24 h. The outer nuclear layer (ONL) areas of the two eyes in the same animal were compared five days postexposure. Light of this intensity causes damage primarily to the photoreceptors in the retina of the albino rat. Since the ONL of the retina contains photoreceptor cell bodies, reduction in the area of this layer i
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de Barbadillo, John J., Brian A. Baker, and Xishan Xie. "Microstructure Stability of Alloy 740H and its Effect on Material Properties." In ASME 2014 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/etam2014-1000.

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Alloy 740H was developed specifically for boiler tube and steam transfer pipe for the Advanced-Ultrasupercritical steam boiler application. The composition was formulated to provide creep strength, weldability and oxidation and coal ash corrosion resistance. It is the first nickel-base age-hardened alloy to be approved under Section 1 of the ASME Boiler and Pressure Vessel Code. Although a significant amount of microstructure and creep data was submitted to support the code case, it was largely collected on tube and light plate, much of this from pilot-scale material. The data package did not
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Joly, Pierre, François Roch, and Christophe Primault. "Effect of Thermal Ageing on Properties of Pressure Vessel Low Alloy Steel." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97643.

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The shells of the PWR heavy components are made of quenched and tempered low alloy steel (type A508 cl.3). Slow thermal ageing of the steel may occur by inter-granular segregation of impurities, depending on the service temperature and the concentration of residual elements (mainly phosphorus) in the steel. This phenomenon may generate embrittlement (i.e. a shift of ductile to brittle transition temperature). The pressurizer service temperature is the highest of the primary loop (345°C), and this component may be affected by more important ageing effects than others. In order to support rules
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Trevisan, R. E., N. F. Santos, H. C. Fals, and A. A. Santos. "Effect of Interpass Temperature on Morphology, Microstructure and Microhardness of Welded API 5L X65 Steel." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27112.

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The overwhelming bulk of oil and gas in pipeline construction is done by welding the individual joints of pipe together. In a broad sense, welding is a metal-joining process wherein coalescence is produced by heating to a suitable temperature. In pipeline construction, this temperature has to be sufficient to render fusion of the joint. The mechanical and metallurgical properties and distortions usually present in weld structures are strongly influenced by preheating and interpass temperatures that are applied during the welding process. Basically, interpass temperatures depend on two factors:
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Shi, Lei, Hua Liu, Yumei Wei, Ming Ma, and Rui Jiang. "The Persistence of Invasion and Diffusion Model of Poisonous Weeds with Allee Effect." In 2017 International Conference on Applied Mathematics, Modeling and Simulation (AMMS 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/amms-17.2017.36.

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Bingham, Carl, Gary Jorgensen, and Amy Wylie. "Exposure of Polymeric Glazing Materials Using NREL’s Ultra-Accelerated Weathering System (UAWs)." In ASME 2010 4th International Conference on Energy Sustainability. ASMEDC, 2010. http://dx.doi.org/10.1115/es2010-90489.

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NREL’s Ultra-Accelerated Weathering System (UAWS) selectively reflects and concentrates natural sunlight ultraviolet irradiance below 475 nm onto exposed samples to provide accelerated weathering of materials while keeping samples within realistic temperature limits. This paper will explain the design and implementation of the UAWS which allow it to simulate the effect of years of weathering in weeks of exposure. Exposure chamber design and instrumentation will be discussed for both a prototype UAWS used to test glazing samples as well as a commercial version of UAWS. Candidate polymeric glazi
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Roth, Armin, Matthias Herbst, Jürgen Rudolph, Paul Wilhelm, Xaver Schuler, Karl-Heinz Herter, Matthias Kammerer, and Thomas Weissenberg. "Environmental Influences on the Fatigue Assessment of Austenitic and Ferritic Steel Components Including Welds." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28728.

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The fatigue assessment of safety relevant components is of importance for ageing management with regard to safety and reliability. For cyclic stress evaluation, different country specific design codes and standards provide fatigue analysis procedures to be performed considering the various mechanical and thermal loading histories and geometric complexities of the components. For the fatigue design curves used as limiting criteria, the influence of different factors like e.g. environment, surface, temperature and data scatter must be taken into consideration in an appropriate way. In this conte
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Burden, Dane, Nic Roniger, and Matt Romney. "Puddling Puddle Welds." In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9476.

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Abstract Unique characteristics of individual pipelines come from over a century of evolving design, construction, maintenance, regulation and operation. These characteristics are especially true for legacy, pre-regulated pipelines. Due to the unique nature of the threats present on these assets, there is a need for unique inspection technologies and techniques that can increase pipeline integrity. Reconditioned and repaired pipe utilizing puddle weld repairs is one such threat. An advanced analysis was completed on a 10-inch, 68-mile light products pipeline. The pipeline was constructed with
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Zheng, Youfei, Wei Gao, Chuanhai Wang, Wei Xiao, and Ronggang Zhang. "Effect of increased UV-B on weeds and big worms in a farmland ecological system." In Optical Science and Technology, SPIE's 48th Annual Meeting, edited by James R. Slusser, Jay R. Herman, and Wei Gao. SPIE, 2003. http://dx.doi.org/10.1117/12.509662.

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Rudolph, Jürgen, Matthias Herbst, Armin Roth, Christian Swacek, and Tim Schopf. "Important Effects in Environmentally Assisted Fatigue (EAF) of Austenitic and Ferritic Steel Components Including Welds and Their Consideration in a Fatigue Assessment Concept." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93913.

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Abstract The fatigue assessment of pressure boundary components is of importance for the aging management regarding safety and reliability in nuclear power plants with light water reactors. For the evaluation of cyclic loading conditions, different country specific design codes and standards are applied to consider various mechanical and thermal loadings as well as geometrical and material effects. Those different influencing factors have also to be taken into account in the fatigue design curves. Current state of the art methods account for life time influencing factors such as temperature, s
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Reports on the topic "Effect of light on weeds"

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Olsen, D. K. Effect of wettability on light oil steamflooding. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/5921887.

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Olsen, D. K. Effect of wettability on light oil steamflooding. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10112474.

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Aly, Radi, and John I. Yoder. Development of resistant crop plants to parasitic weeds based on trans-specific gene silencing. United States Department of Agriculture, January 2013. http://dx.doi.org/10.32747/2013.7598146.bard.

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Abstract:
Broomrapes (Orobanche/Phelipanchespp.) are holo parasitic plants that subsist on the roots of a variety of agricultural crops and cause severe losses to the yield quality and quantity. Effective methods for controlling parasitic weeds are scarce, with only a few known cases of genetic resistance. In the current study, we proposed an improved strategy for the control of parasitic weeds based on trans-specific gene-silencing of three parasite genes at once. We used two strategies to express dsRNA containing selected sequences of three Phelipancheaegyptiacagenes PaACS, PaM6PR and PaPrx1 (pma): tr
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Ewing, Reid. Effect of Light-Rail Transit on Traffic in a Travel Corridor. Portland State University Library, June 2014. http://dx.doi.org/10.15760/trec.56.

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Sonder, E., A. B. Ahmed, K. L. McMahan, D. S. Colwell, and P. R. Smith. The effect of visible light on Harshaw Model 8801 thermoluminescent dosimeters. Office of Scientific and Technical Information (OSTI), September 1990. http://dx.doi.org/10.2172/6240515.

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Ruden, P. P., and Darryl L. Smith. Device Model for Light-Emitting Field-Effect Transistors with Organic Semiconductor Channel. Office of Scientific and Technical Information (OSTI), April 2007. http://dx.doi.org/10.2172/1304691.

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Van Cauter, Eve. Phase-Shifting Effect of Light and Exercise on the Human Circadian Clock. Fort Belvoir, VA: Defense Technical Information Center, February 1992. http://dx.doi.org/10.21236/ada253012.

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Van Cauter, Eve, Jeppe Sturis, Maria M. Byrne, John D. Blackman, Neal H. Scherberg, Rachel Leproult, Samuel Refetoff, and Olivier Van Reeth. Phase-Shifting Effect of Light and Exercise on the Human Circadian Clock. Fort Belvoir, VA: Defense Technical Information Center, May 1993. http://dx.doi.org/10.21236/ada265732.

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Marasco, Peter L., and H. L. Task. The Effect on Vision of Light Scatter From HMD Visors and Aircraft Windscreens. Fort Belvoir, VA: Defense Technical Information Center, January 1999. http://dx.doi.org/10.21236/ada430274.

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Chen, Yujia, Li Peng, Jiarun Wang, Jing Zhao, Zhijie Zou, and Xiaoli Chen. Effect of bright light therapy on perinatal depression: Systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, November 2022. http://dx.doi.org/10.37766/inplasy2022.11.0007.

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