Bibliographies thématiques / Grain

Littérature scientifique sur le sujet « Grain »

Auteur : Grafiati
Publié le 4 juin 2021
Mis à jour le 5 mars 2023

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Articles de revues sur le sujet "Grain"

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Ramadhani, Siti Hasdiyanti, Ni Luh Sri Suryaningsih et Yosefina Mangera. « Analysis of Grain Yield and Quality of Rice Aromatic Inpago Unsoed 1 ». AGRICOLA 8, no 1 (24 septembre 2019) : 1–6. http://dx.doi.org/10.35724/ag.v8i1.2098.

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The purpose of the study was to determine the quality of the grainand rice are planted, the ricevarieties Inpago Unsoed 1. The research method use dis data collection, namely primary data andsecondary data. Primary data is used for observed in this research about grain moisturecontent,density of grain, foreign bodies, empty grains, grain crackedor broken, after the percentage ofgrain milled head of rice, broken rice, graing roats, grain limestone, yolk broken and milled rice yield.The results showed that during the observation the quality of grain varieties Inpago Unsoed 1 hasmilled at about 13,33% moisture content, grain density of 0,57g/ml, and grain weight is 27,60g/1000grain. The percentage point for the determination quality of head point is 73,49%, broken grainsabout 13,92%, and 12,34% graing roats. The quality of rice milled varieties inpago Unsoed 1 includelow. The lower of rice quality is due to the low of head rice percentage, while the percentage ofbroken grain sand high graing roats. Rice milled yield about 51,23%
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Huang, Yun Hua, Yue Zhang, Hao Zhai, Cheng Zhou et Jian He. « Strengthening and Toughening Mechanisms of the Microalloying Non-Quenching and Tempering Steel ». Materials Science Forum 475-479 (janvier 2005) : 97–100. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.97.

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The microstructure of a microalloying non-quenching and tempering steel developed recently was analyzed through OM, SEM and TEM, in order to find the strengthening and toughening mechanisms of the steel. All of the dislocations and subgrain boundaries in the grains, the martensite in the martensite-austenite islands of the grainy bainite structure, the dispersed phases in the grains and at the grain boundaries, and the grain size were observed and studied in our experiments. The results indicate that the strengthening results from phase transition, dislocation, subgrain structure, dispersion phase and fined grain, and the toughness relates with the ferrite matrix consisting of the grainy bainite and the grain size of the steel. The mechanisms between the hot-rolled-and-cooled and the tempered steel are slightly different.
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Qiu, Hai, Rintaro Ueji, Yuuji Kimura et Tadanobu Inoue. « Grain-to-Grain Interaction Effect in Polycrystalline Plain Low-Carbon Steel within Elastic Deformation Region ». Materials 14, no 8 (9 avril 2021) : 1865. http://dx.doi.org/10.3390/ma14081865.

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A grain is surrounded by grains with different crystal orientations in polycrystalline plain low-carbon steel. The grain is constrained by its adjacent grains in the tension process. The interaction of the grain with the adjacent grains was investigated within the elastic deformation region. The following results have been obtained: (1) the Young’s modulus of a grain without consideration of grain-to-grain interaction is denoted as the inherent Young’s modulus; when the inherent Young’s modulus of a grain is equal to the Young’s modulus of the bulk material, there is almost no interaction between the grain and its adjacent grains; when a grain has a great difference between its inherent Young’s modulus and the Young’s modulus of the bulk material, its grain-to-grain interactions increase significantly; (2) the grain-to-grain interaction is mainly caused by the difference in the inherent Young’s modulus between the grain and its adjacent grains; the misorientation angle between the grain and its adjacent grains has almost no effect on the grain-to-grain interaction.
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Bojarski, Stephanie A., Jocelyn Knighting, Shuai Lei Ma, William Lenthe, Martin P. Harmer et Gregory S. Rohrer. « The Relationship between Grain Boundary Energy, Grain Boundary Complexion Transitions, and Grain Size in Ca-Doped Yttria ». Materials Science Forum 753 (mars 2013) : 87–92. http://dx.doi.org/10.4028/www.scientific.net/msf.753.87.

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The thermal groove technique has been used to measure relative grain boundary energies in two 100 ppm Ca-doped yttria samples. The first has a normal grain size distribution and the boundaries have a bilayer of segregated Ca. In the second sample, there is a combination of large grains and small grains. The boundaries around the large grains are known to have an intergranular film. The results show that the relative energies of boundaries in the sample with normal grain growth and the boundaries around small grains far from larger grains in the second sample are similar. Also, boundaries surrounding the largest grains and small grains immediately adjacent to them have the same and significantly lower energies. The results indicate that grain boundaries with an intergranular film have a lower energy than those with bilayer segregation and that the intergranular film extends beyond the periphery of the largest grains, but not throughout the entire sample.
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Brdar, Milka, Borislav Kobiljski et Marija Balalic-Kraljevic. « Grain filling parameters and yield components in wheat ». Genetika 38, no 3 (2006) : 175–81. http://dx.doi.org/10.2298/gensr0603175b.

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Grain yield of wheat (Triticum aestivum L.) is influenced by number of grains per unit area and grain weight, which is result of grain filling duration and rate. The aim of the study was to investigate the relationships between grain filling parameters in 4 wheat genotypes of different earliness and yield components. Nonlinear regression estimated and observed parameters were analyzed. Rang of estimated parameters corresponds to rang of observed parameters. Stepwise MANOVA indicated that the final grain dry weight, rate and duration of grain filling were important parameters in differentiating among cultivars grain filling curves. The yield was positively correlated with number of grains/m2, grain weight and grain filling rate, and negatively correlated with grain filling duration. Correlation between grain weight and rate of grain filling was positive. Grain filling duration was negatively correlated with grain filling rate and number of grains/m2. The highest yield on three year average had medium late Mironovska 808, by the highest grain weight and grain filling rate and optimal number of grains/2 and grain filling duration.
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Dennis, J., Pete S. Bate et John F. Humphreys. « Abnormal Grain Growth in Metals ». Materials Science Forum 558-559 (octobre 2007) : 717–22. http://dx.doi.org/10.4028/www.scientific.net/msf.558-559.717.

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Grain growth may occur in two forms, normal grain growth, characterized by a constant grain size distribution during growth, and abnormal grain growth, where one or more abnormally large grains may form in the microstructure. The presence of abnormally large grains in an otherwise uniform microstructure may be detrimental to the mechanical properties of a polycrystalline structure. Little is understood of the exact cause of abnormal grain growth. The annealing conditions leading to the onset of abnormal grain growth have been investigated via a series of grain growth experiments carried out on an Al-4wt%Cu alloy. The structure of which consisted of equiaxed grains (<8μ) pinned by a fine dispersion of sub-micron second phase particles, which may dissolve upon annealing. Minority texture components may experience accelerated growth due to a higher energy and mobility compared to the surrounding grain structure. The combination of these two events may result in the abnormal growth of some grains. SEM imaging and EBSD data has then made it possible to characterize the influence of particle dissolution and grain boundary misorientation on the onset of abnormal grain growth. The stability of ‘island grains’ found to exist internally in abnormally large grains has also been investigated in relation to the misorientation relationship and localized second phase volume fraction found there. There was only weak evidence of special misorientation relationships between the island grains and the abnormally large grains in which they exist, and although there was evidence of an enhanced fraction of pinning particles at island grain boundaries, this was also true of boundaries in general. The larger size of island grains is their dominant characteristic, and grains which become island grains may have been incipient abnormal grains.
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Fouad Razzaq A., Al-Burki, Mohsin Haider Abdulhussein et Sarheed Abdullah F. « Season Response of Bread Wheat Cultivars (Triticum Aestivum L.) to Different Planting Dates Under Samawa Desert Condition ». IOP Conference Series : Earth and Environmental Science 923, no 1 (1 novembre 2021) : 012089. http://dx.doi.org/10.1088/1755-1315/923/1/012089.

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Abstract A field experiment was carried out in Samawa desert (70 km west of Samawa city, Al-Muthanna governorate), during the 2018-2019 and 2019-2020 agricultural seasons, to study the response of three Iraqi cultivars of wheat (Tamooz2, Ibaa99, Abu Ghraib3) to three planting dates (November 15, 1st December and December 15) under Samawa desert conditions. The results showed the superiority of Tamooz2 cultivar in all traits of the yield components, it gave the highest averages of grain yield, which amounted 5.75 and 5.89 tons/ha−1, weight of 1000 grains, which amounted 29.79 and 31.06 gm, and the number of grains per spike, which amounted 73.02 and 73.76 for the 2019 and 2019-2020 seasons, respectively. The date of December 15th also surpassed in the traits of grain yield, weight of 1000 grains, number of spike grains, and the highest grain yield reached 5.62 and 5.58 tons/ha−1 for the two seasons 2018-2019 and 2019-2020, respectively, and the combination (Tamooz 2 x December 15) gave superiority over the other combinations in terms of grain yield which amounted 6.05 tons ha−1 (2018-2019 season) and Ibaa99 × December 1 gave the highest grian yield about 6.10 tons ha-1 (2019-2020 season).
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Bakker, W. T., W. G. M. Van Kesteren et Z. H. Yu. « GRAIN-GRAIN INTERACTION IN OSCILLATING SHEETFLOW ». Coastal Engineering Proceedings 1, no 21 (29 janvier 1988) : 53. http://dx.doi.org/10.9753/icce.v21.53.

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Viscous grain-grain interaction is an important aspect of the dynamics of oscillating sheetflow. This interaction between sand grains has been investigated qualitatively in a pulsating water tunnel. Furthermore, experiments concerning the interaction between neutrally buoyant spheres in a Couette flow have been carried out at a scale of 100:1 in a new developed ring shear apparatus, called " Carrousel." With respect to the dynamics of sheetflow, in-situ measuring devices for the sand concentration in the sheetflow ("Harp") and the bed load ("Swan") has been developed; some preliminary results are shown. For sand grains, the intrusion depth of sheetflow appears to be of the order of several mm. On high speed video recordings no lateral mixing between grain layers can be observed; for this some physical explanation is given. This supports the modelling of the sheetflow mechanism as moving grain layers.
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Abdashimova, Khumora. « STUDYING THE WEIGHT OF 1000 GRAINS OF CEREALS AND LEGUMES ». Eurasian Journal of Medical and Natural Sciences 03, no 02 (1 février 2023) : 130–32. http://dx.doi.org/10.37547/ejmns-v03-i02-p1-20.

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The mass of 1000 grains also evaluates the grain density, studying the influence of the mass of 1000 grains on the technological properties of production, the effect of the mass of 1000 grains on grain and seeds, grain consistency, grain hardness.
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Hoang, Thiem. « Effects of Grain Alignment with Magnetic Fields on Grain Growth and the Structure of Dust Aggregates ». Astrophysical Journal 928, no 2 (30 mars 2022) : 102. http://dx.doi.org/10.3847/1538-4357/ac5408.

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Abstract Dust grains drift through the interstellar medium and are aligned with the magnetic field. Here we study the effect of grain alignment and motion on grain growth in molecular clouds (MCs). We first discuss the characteristic timescales of alignment of the grain axis of maximum inertia ( a ˆ 1) with its angular momentum (J; i.e., internal alignment) and alignment of J with the magnetic field ( B ; i.e., external alignment). We determine the maximum grain size with efficient internal ( a max , aJ ) and external ( a max , JB ) alignment for composite grains. For the MC density of n H ∼ 103–108 cm−3, we find that external alignment can occur for very large grains, but internal alignment only occurs for grains smaller than a max , aJ ∼ 2 μ m . The presence of iron clusters within dust grains or suprathermal rotation increases a max , aJ to ∼10–50 μm. We then study the growth of aligned grains drifting through the gas. Due to the motion of aligned grains across the magnetic field, gas accretion would increase the grain elongation rather than decrease, as expected from the growth of randomly oriented grains. Coagulation by grain collisions also increases grain elongation, leading to the increase of elongation with the grain size. The coagulation of aligned grains forms dust aggregates that contain elongated binaries comprising a pair of grains with parallel short axes. Grains within dust aggregates in 67P/Churyumov–Gerasimenko obtained by Rosetta have the grain elongation increasing with the grain radius, implying that such dust aggregates might form from aligned grains.
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Thèses sur le sujet "Grain"

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Muirhead, John J. « The morphological characterisation of grains and grain boundaries ». Thesis, Sheffield Hallam University, 2001. http://shura.shu.ac.uk/20099/.

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It is well reported that the grain size of polycrystalline materials is important in determining mechanical properties. Within this thesis investigations are reported from an inter-comparison of grain size methods, the impact of an incomplete network of grain boundaries after chemical etching (missing boundaries) on grain size measurements and finally the relationship between grain size and the misorientation of grains. The experimental techniques used are manual grain size measurement methods, automatic image analysis and Electron Backscatter Diffraction (EBSD). The materials used are a ferritic, single phased, equi-axed steel (mild steel) and a ferrite/pearlite steel. The relative simplicity of the mild steel microstructure effectively removes complicating factors such as multi-phases or grain elongation allowing a more focused investigation into grain size methods. The ferrite/pearlite steel can be found more readily in industrial applications where impact toughness is an important property. Manual measurement methods and automatic image analysis are used for the inter-comparison of grain size methods. The manual methods are described in the standard ASTM E112, and are the lineal, planimetric, single circle and three circle methods. It is shown that there is a difference across the methods in the number of measurements required to obtain a specified accuracy. Also that sampling is critical to ensure that the measurements made are representative of the microstructure in that it is more important to measure more specimens than more fields of view within one specimen or many grains within one field of view. Automatic image analysis can provide a substantial database and thus is a useful grain sizing method. It is demonstrated that the number of pixels in a digital image forming a grain boundary, determined by the pixel resolution, will influence the measurements. Also from using digital images a specific number of grain boundaries are removed thus artificially creating missing boundaries making their impact on grain size measurements quantifiable. Manual and automatic measurements are conducted and it is shown that the mean grain size is relatively less affected by missing boundaries than might be perceived from a visual inspection. An EBSD map provides a complete network of grain boundaries since a boundary is formed from the orientation of one grain to another (misorientation), compared to standard metallographic techniques, e.g. chemical etching. EBSD maps are compared with optical images of the same fields of view and missing boundaries are then located. From this it is shown that there is a significant difference between two operators in determining the location of boundaries. EBSD is also used to investigate the correlation between the location of missing boundaries and the misorientation of the grains at that boundary and shows a trend of higher misorientation for boundaries not chemically etched up. The final section of this thesis is concerned with the relationship between the misorientation of small/small, small/large and large/large grains and the size of grains of the ferrite phase from the ferrite/pearlite steel. EBSD maps provide the misorientation data and are also used for grain sizing conducted on the automatic image analysis system. From the misorientation data the boundaries can be categorised as low or high angle and it is found that there are more low angle boundaries between small/small grains and small/large grains than between large/large grains.
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Ottman, Michael J., Michael D. Sheedy et Richard W. Ward. « Clipping small grains to increase subsequent grain yield ». College of Agriculture, University of Arizona (Tucson, AZ), 2016. http://hdl.handle.net/10150/625423.

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Wheat is commonly grown as a dual purpose crop especially in the Southern Great Plains where the forage is grazed then allowed to mature into a grain crop. In Arizona, clipping a crop planted in October may increase tillering and grain yield. A trial was conducted at the Maricopa Ag Center where various small grain varieties were planted on October 12, 2015, cut for forage on January 10, 2016, and allowed to go to grain and compared with the same varieties planted on December 3, 2016 and not cut for forage. No differences in grain yield due to planting date and clipping were detected. However, the October 12 planting with clipping had larger kernels, greater grain protein, and higher stem density. The income from the sale of the forage was $99/acre based a yield of 2639 lb/acre and a forage value of $75/ton. The added cost per acre to produce this forage included $29 for water (6.27 inches of water at $55/acre-ft) plus $34 for fertilizer (50 lb N/acre of urea at $433/ton). Therefore, even though grain yield was not increased by planting early and clipping, a net increase in revenue of $36/acre was realized from the sale of the forage.
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Myers, Randall T. (Randall Todd) 1972. « Grains and grain boundaries in lamellar styrene--butadiene block copolymers ». Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85277.

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Michaels, Joshua O. « Cross Grain ». University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1407406914.

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Annis, Margaret Catherine, et n/a. « Extending stored grain research and technology to grain farmers ». University of Canberra. Education, 1995. http://erl.canberra.edu.au./public/adt-AUC20060602.115607.

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This thesis is concerned with an investigation into current on-farm grain storage practice and with ascertaining what educational interventions, if any, are appropriate for future and more detailed consideration. The Australian grain growing, handling, and marketing industry has changed in recent times. A few years ago (1989), the grain growers only essential contact with grain marketing was through the bulk handling authorities and the Australian Wheat Board. Advice was freely available from state departments of agriculture, and the only requirement to store grain on-farm was that necessary for the grower's own needs. Now (1994), there is a possible advantage that grain stored on-farm may be used for a wide range of selling options, amongst other reasons, and market requirements are much more complex and stringent. There is a substantial body of research on grain storage techniques. At the same time there is a significant gap between researched knowledge and the use of this knowledge for on-farm storage. A major purpose of this study is to identify an improved approach to extension and farmer education that may help to reduce this gap. This thesis contains a review of the general literature on extension followed by an overview of extension in the developed world to establish the international context for Australia. Then the historical context of extension is examined briefly to understand the current situation in each state. Some educational models are reviewed to identify relationships between stakeholders and the opportunities available for and constraints to development of educational strategies. Information channels are reviewed to comprehend extension interaction and grain storage technologies are reviewed to ensure comprehension of techniques. On the basis of the literature review a field study was designed to investigate current on-farm storage practice, current extension sources for storage information and preferences for future educational interventions. This was done by a survey using a stratified random sample of grain growers and cluster selection of individuals for personal interviews. This information was complemented by informal discussion with farmers at field days. The results of the study confirmed the gap between research knowledge and on-farm implementation of this knowledge. They also demonstrated that grain growers wanted more information and gave some indicators of how this might be achieved. Major findings of the research included the need for extension coalitions and the desirability for active involvement of the grain grower. Major conclusions, for on-farm storage and extension, are drawn to form a basis for development of future extension interventions. These are aimed at ensuring grain growers have available the information needed for good storage practice. This includes an essential understanding the grain growers' needs and perceptions, early, in any planning process. It also includes the necessity for coordination of extension/education activities at local, regional and national levels. The research has some major implications for an improved approach to extension and on-farm storage. These include the establishment of a farmers-as-researcher program to implement grain storage innovations and the recognition that implemented change will need long term maintenance; often more resource intensive than the original intervention.
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Zhang, Qinghong. « SINTERING BEHAVIOR AND PROPERTIES STUDY IN STOICHIOMETRIC BLENDING BaTiOs ». University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin971278607.

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Mohd-Ali, B. B. « Computer mapping of grain structures in grain-oriented silicon-iron ». Thesis, Bucks New University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373598.

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Sullwald, Wichard. « Grain regression analysis ». Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86526.

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Thesis (MSc)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: Grain regression analysis forms an essential part of solid rocket motor simulation. In this thesis a numerical grain regression analysis module is developed as an alternative to cumbersome and time consuming analytical methods. The surface regression is performed by the level-set method, a numerical interface advancement scheme. A novel approach to the integration of the surface area and volume of a numerical interface, as defined implicitly in a level-set framework, by means of Monte-Carlo integration is proposed. The grain regression module is directly coupled to a quasi -1D internal ballistics solver in an on-line fashion, in order to take into account the effects of spatially varying burn rate distributions. A multi-timescale approach is proposed for the direct coupling of the two solvers.
AFRIKAANSE OPSOMMING: Gryn regressie analise vorm ’n integrale deel van soliede vuurpylmotor simulasie. In hierdie tesis word ’n numeriese gryn regressie analise model, as ’n alternatief tot dikwels omslagtige en tydrowende analitiese metodes, ontwikkel. Die oppervlak regressie word deur die vlak-set metode, ’n numeriese koppelvlak beweging skema uitgevoer. ’n Nuwe benadering tot die integrasie van die buite-oppervlakte en volume van ’n implisiete numeriese koppelvlak in ’n vlakset raamwerk, deur middel van Monte Carlo-integrasie word voorgestel. Die gryn regressie model word direk en aanlyn aan ’n kwasi-1D interne ballistiek model gekoppel, ten einde die uitwerking van ruimtelik-wisselende brand-koers in ag te neem. ’n Multi-tydskaal benadering word voorgestel vir die direkte koppeling van die twee modelle.
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Gregory, George T. Jr. « Against the Grain ». The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313429398.

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Ottman, Michael J. « Wheat and Barley Varieties for Arizona 2013 ». College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2013. http://hdl.handle.net/10150/305109.

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Livres sur le sujet "Grain"

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Quinn, Bob, et Liz Carlisle. Grain by Grain. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8.

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1909-1996, Livesay Dorothy, dir. Grain. Regina, Sask : Saskatchewan Writers Guild, 1987.

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Wrobel, Scott. Grain. Mankato, Minn : Creative Education, 1999.

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Stead, Robert J. C. Grain. Toronto : McClelland and Stewart, 1985.

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Glenday, John. Grain. London : Picador, 2009.

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Cramer, Gail L., et Eric J. Wailes. Grain Marketing. 2e éd. New York : CRC Press, 2021. http://dx.doi.org/10.1201/9780429037368.

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Priester, Louisette. Grain Boundaries. Dordrecht : Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4969-6.

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De Ron, Antonio M., dir. Grain Legumes. New York, NY : Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2797-5.

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Guild, Saskatchewan Writers'. Grain magazine. Saskatoon, Sask : Saskatchewan Writers Guild, 1997.

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Ontario. Ministry of Agriculture and Food. Grain Aeration. S.l : s.n, 1985.

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Chapitres de livres sur le sujet "Grain"

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Quinn, Bob, et Liz Carlisle. « Introduction ». Dans Grain by Grain, 1–14. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_1.

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Quinn, Bob, et Liz Carlisle. « The Value of Limits ». Dans Grain by Grain, 123–32. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_10.

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Quinn, Bob, et Liz Carlisle. « Taste of Place ». Dans Grain by Grain, 133–41. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_11.

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Quinn, Bob, et Liz Carlisle. « Recycling Energy ». Dans Grain by Grain, 143–60. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_12.

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Quinn, Bob, et Liz Carlisle. « Bringing Rural Jobs Back ». Dans Grain by Grain, 161–70. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_13.

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Quinn, Bob, et Liz Carlisle. « The Gluten Mystery ». Dans Grain by Grain, 171–81. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_14.

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Quinn, Bob, et Liz Carlisle. « Food as Medicine ». Dans Grain by Grain, 183–95. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_15.

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Quinn, Bob, et Liz Carlisle. « One Great Subject ». Dans Grain by Grain, 197–207. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_16.

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Quinn, Bob, et Liz Carlisle. « Rejecting the Status Quo ». Dans Grain by Grain, 209–18. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_17.

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Quinn, Bob, et Liz Carlisle. « Conclusion : A New Generation of Growers and Eaters ». Dans Grain by Grain, 219–30. Washington, DC : Island Press/Center for Resource Economics, 2019. http://dx.doi.org/10.5822/978-1-61091-996-8_18.

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Actes de conférences sur le sujet "Grain"

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Chunli Wang, Dapeng Chai, Rui Ma, Xiaohui Lin et Chun Wang. « Sand grains tracking in dense grain image sequences ». Dans 2008 8th IEEE International Conference on Computer and Information Technology (CIT). IEEE, 2008. http://dx.doi.org/10.1109/cit.2008.4594699.

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Bakker, W. T., W. G. M. van Kesteren et Z. H. Yu. « Grain-Grain Interaction in Oscillating Sheetflow ». Dans 21st International Conference on Coastal Engineering. New York, NY : American Society of Civil Engineers, 1989. http://dx.doi.org/10.1061/9780872626874.054.

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Lian, Jie, Javier Garay et Junlan Wang. « Effect of Grain Size and Grain Boundary on Mechanical Yielding Behavior of Fully Stabilized Zirconia ». Dans ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15418.

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Mechanical properties of fully yttria stabilized zirconia (F-YSZ) with different grain sizes were investigated using instrumented indentation. While the grain size effect on the yield strength was performed on both the coarse-grained and fine-grained F-YSZ, the grain boundary effect was studied on the coarse-grained F-YSZ by performing nanoindentation within the grains and on/near the grain boundaries. Little variations were observed on mechanical properties such as hardness and reduced modulus, interesting results were obtained on the grain boundary effect on the yielding load for the course-grained F-YSZ.
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Soares, J. A., R. L. C. Coura, N. M. Oliveira, L. C. Medeiros, J. J. Silva, L. Landau et A. P. Martins Neta. « Grain-grain contacts evaluation in carbonate reservoirs ». Dans 80th EAGE Conference & Exhibition 2018 Workshop Programme. Netherlands : EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201801889.

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Muddukrishna, Ananya, Peter A. Jonsson, Artur Podobas et Mats Brorsson. « Grain graphs ». Dans PPoPP '16 : 21st ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming. New York, NY, USA : ACM, 2016. http://dx.doi.org/10.1145/2851141.2851156.

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Balusu, Kranthi, et Haiying Huang. « A CPFEM Investigation of the Effect of Grain Orientation on the Surface Profile During Tensile Plastic Deformation of FCC Polycrystals ». Dans ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71763.

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A Crystal Plasticity Finite Element Method (CPFEM) investigation was performed to study the effect of the grain orientation on the surface profile changes in FCC polycrystals undergoing plastic tensile deformation. A grain embedded in an isotropic sample was used to ensure that grain profile is influenced only by the grain orientation. Simulation with multiple sets of grain orientations has determined that strain compatibility is the key criterion dictating the relative sinking and rising of grains. As a consequence, the grains with axial orientations close to [001] and [111] orientations, i.e. the most compatible orientations, sink irrespective of the normal orientation. However, grains with other axial orientations may relatively rise or sink depending on the orientation normal to the surface.
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Dai, H. J., J. C. Gebelin, M. Newell, R. C. Reed, N. D'Souza, P. D. Brown et H. B. Dong. « Grain Selection during Solidification in Spiral Grain Selector ». Dans Superalloys. TMS, 2008. http://dx.doi.org/10.7449/2008/superalloys_2008_367_374.

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Chen, Liang, et Jiting Xu. « Grain Incipient Motion Considering Randomness of Grain Location ». Dans GeoHunan International Conference 2011. Reston, VA : American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/47633(412)42.

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Maria Elena Ingles, Mark Casada et Ronaldo G. Maghirang. « Commingling Effects and Residual Grain during Grain Receiving ». Dans 2002 Chicago, IL July 28-31, 2002. St. Joseph, MI : American Society of Agricultural and Biological Engineers, 2002. http://dx.doi.org/10.13031/2013.9775.

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Hepper, Dietmar. « Film grain noise superimposition for film grain management ». Dans 2014 IEEE International Conference on Consumer Electronics (ICCE). IEEE, 2014. http://dx.doi.org/10.1109/icce.2014.6775992.

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Rapports d'organisations sur le sujet "Grain"

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Balluffi, R. W., et P. D. Bristowe. Grain boundaries. Office of Scientific and Technical Information (OSTI), janvier 1991. http://dx.doi.org/10.2172/6114381.

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Marathon, Nick. Grain Transportation Report. U.S. Dept. of Agriculture, Agricultural Marketing Service, octobre 2012. http://dx.doi.org/10.9752/ts057.10-4-2012.

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Skone, Timothy J. Corn Grain, Production. Office of Scientific and Technical Information (OSTI), mai 2012. http://dx.doi.org/10.2172/1509150.

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Lula, J. W., et G. W. Bohnert. Dehumidification Grain Dryer. Office of Scientific and Technical Information (OSTI), mai 1998. http://dx.doi.org/10.2172/16593.

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Bojarski, Stephanie A., et Gregory S. Rohrer. The Role of Grain Boundary Energy on Grain Boundary Complexion Transitions. Office of Scientific and Technical Information (OSTI), septembre 2014. http://dx.doi.org/10.2172/1323555.

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Hodgdon, Taylor, Brendan West, Julie Parno, Theodore Letcher, Zoe Courville et Lauren Farnsworth. Extracting sintered snow properties from microCT imagery to initialize a discrete element method model. Engineer Research and Development Center (U.S.), septembre 2022. http://dx.doi.org/10.21079/11681/45305.

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Modeling snow’s mechanical behavior is important for many cold regions engineering problems. Because snow’s microstructure plays a significant role in its mechanical response, it is imperative to initialize models with accurate bond characteristics and realistic snow-grain geometries to precisely capture the microstructure interactions. Previous studies have processed microcomputed tomography scans of snow samples with a watershed method to extract grain geometries. This approach relies on identification of seed points to segment each grain. Our new methodology, called the “moving window method,” does not require prior knowledge of the snow-grain-size distribution to identify seed points. We use the interconnectivity of the segmented grains to identify bond characteristics. We compare the resultant grain-size and bond-size distributions to the known grain sizes of the laboratory-made snow samples. The grain-size distributions from the moving window method closely match the known grain sizes, while both results from the traditional method produce grains that are too large. We propose that the bond net-work identified using the traditional method underestimates the number of bonds and overestimates bond radii. Our method allows us to segment realistic snow grains and their associated bonds, without prior knowledge of the samples, from which we can initialize numerical models of the snow.
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Skone, Timothy J. Corn Grain, Cultivation, Operation. Office of Scientific and Technical Information (OSTI), juin 2012. http://dx.doi.org/10.2172/1509025.

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Hanna, H. Mark, et Dana Schweitzer. Grain Drying Energy Use. Ames : Iowa State University, Digital Repository, 2016. http://dx.doi.org/10.31274/farmprogressreports-180814-1417.

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Hanna, H. Mark, et Shawn Shouse. Grain Drying Energy Use. Ames : Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/farmprogressreports-180814-1586.

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Skrdla, Ronald, et Jean-Luc Jannink. Small Grain Demonstration Plots. Ames : Iowa State University, Digital Repository, 2007. http://dx.doi.org/10.31274/farmprogressreports-180814-578.

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