Letteratura scientifica selezionata sul tema "Composition gradient"
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Articoli di riviste sul tema "Composition gradient"
Vazan, Allona, Ravit Helled e Tristan Guillot. "Jupiter’s evolution with primordial composition gradients". Astronomy & Astrophysics 610 (febbraio 2018): L14. http://dx.doi.org/10.1051/0004-6361/201732522.
Testo completoWei Zhang e Wai-Kuen Cham. "Gradient-Directed Multiexposure Composition". IEEE Transactions on Image Processing 21, n. 4 (aprile 2012): 2318–23. http://dx.doi.org/10.1109/tip.2011.2170079.
Testo completoCampos-Cerqueira, Marconi, e T. Mitchell Aide. "Changes in the acoustic structure and composition along a tropical elevational gradient". Journal of Ecoacoustics 1, n. 1 (6 dicembre 2017): 1. http://dx.doi.org/10.22261/jea.pnco7i.
Testo completoBresnahan, Brady L., e David L. Poerschke. "High-Throughput Multi-Principal Element Alloy Exploration Using a Novel Composition Gradient Sintering Technique". Metals 14, n. 5 (9 maggio 2024): 558. http://dx.doi.org/10.3390/met14050558.
Testo completoGarnett, D. R., e G. A. Shields. "The composition gradient across M81". Astrophysical Journal 317 (giugno 1987): 82. http://dx.doi.org/10.1086/165257.
Testo completoLi, Qiang, e Ming Qing Wu. "Based on the Gradient Source Representation of Functionally Gradient Materials". Applied Mechanics and Materials 496-500 (gennaio 2014): 80–83. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.80.
Testo completoPero, Edgardo J. I., Paola A. Rueda Martín e María C. Reynaga. "Species and genus richness and assemblage composition of stream caddisflies (Insecta: Trichoptera) vary with latitude in mountain rainforest of Argentina". Marine and Freshwater Research 70, n. 5 (2019): 687. http://dx.doi.org/10.1071/mf18209.
Testo completoPrata, Eduardo Magalhães Borges, Aloysio De Pádua Teixeira, Carlos Alfredo Joly e Marco Antonio Assis. "The role of climate on floristic composition in a latitudinal gradient in the Brazilian Atlantic Forest". Plant Ecology and Evolution 151, n. 3 (28 novembre 2018): 303–13. http://dx.doi.org/10.5091/plecevo.2018.1407.
Testo completoXu, C., S. E. Barnes, T. Wu, D. A. Fischer, D. M. DeLongchamp, J. D. Batteas e K. L. Beers. "Solution and Surface Composition Gradients via Microfluidic Confinement: Fabrication of a Statistical-Copolymer-Brush Composition Gradient". Advanced Materials 18, n. 11 (6 giugno 2006): 1427–30. http://dx.doi.org/10.1002/adma.200502341.
Testo completoManaila, R., A. Devenyi, D. Biro, L. David, P. B. Barna e A. Kovacs. "Multilayer TiAlN coatings with composition gradient". Surface and Coatings Technology 151-152 (marzo 2002): 21–25. http://dx.doi.org/10.1016/s0257-8972(01)01633-4.
Testo completoTesi sul tema "Composition gradient"
Benrabah, Imed-Eddine. "Développement d’alliages métalliques à gradient de composition pour l’exploration combinatoire des microstructures". Thesis, Université Grenoble Alpes, 2021. http://www.theses.fr/2021GRALI005.
Testo completoThe transformation of austenite into ferrite in steels is of considerable interest in controlling the final properties of steels, in particular Advanced High-Strength Steels (AHSS) such as Dual Phase (DP) steel. Despite tremendous efforts in understanding the mechanisms controlling ferrite formation, the role of substitutional elements during ferrite growth and their interaction with the migrating α/γ interface remain unclear. Several models have been developed to describe ferrite growth kinetics in ternary and higher systems. The solute drag based models have been successfully used to predict kinetics for multiple substitutional solutes, compositions and temperatures in ternary systems. However, the extension of this model to higher order systems highlighted a complex behavior of the interaction between the different interstitial and substitutional elements at the interface. Validation of the developed models requires an experimental study of the effect of both composition and temperature on growth kinetics. The aim of this contribution is to present a complete combinatorial high-throughput methodology to accelerate the investigation of the dependency of ferrite growth kinetics on substitutional composition in alloy steels. It is noteworthy, however, that this new methodology could be used to study any other phase transformation in any other metallic alloy. The essence of the methodology is to fabricate materials with macroscopic composition gradients, and to perform time- and space-resolved in situ high-energy X-ray diffraction experiments to gather the austenite-to-ferrite phase transformation kinetics in many points of the compositional space. Diffusion couples containing millimeter-scale solute gradients and an almost constant carbon content were generated using the present methodology and used to study ferrite growth kinetics at inter-critical temperatures using in-situ high-energy X-ray diffraction experiments. During 4 days of experiments, more than 1500 kinetics were gathered for different compositions and at different temperatures. This dataset of unprecedented size was used validate a modified version of the three-jump solute drag model for both ternary and quaternary systems. The model calculations matched experimental transformation kinetics at all investigated temperatures and over almost all the investigated composition ranges of Si, Cr, Mn, Ni, and Mo, contrary to results from para-equilibrium (PE) and local equilibrium negligible partitioning (LENP) models. Additionally, it was demonstrated that the calibration of thermodynamic parameters in ternary systems held true in quaternary systems, paving the way towards modeling of the transformation in higher-order systems
Villaret, Flore. "Développement d’une jonction austéno-martensitique à gradient de composition chimique par fabrication additive". Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI104.
Testo completoThis PhD work concerns the problem of bimetallic austenitic/martensitic steel connections. This research action focuses on a 316L austenitic steel (X2 CrNiMo 18-12-02) / Fe-9Cr-1Mo (X10 CrMo 9-1) martensitic steel connection. The objective is to understand the metallurgical problems related to the assembly of these two steels and to evaluate the possibilities of using powder metallurgy and additive manufacturing to produce austenitic/martensitic steel transitions. A weld obtained by electron beam is used as a reference for this study which focuses on the interest of powder metallurgy to achieve a transition between two steels. Materials with a chemical composition gradient have been consolidated by HIP and SPS and show very good mechanical properties and an excellent junction between the two steels. By additive manufacturing (DED-LB or PBF-LB), we also obtain very good bonds between the two steels, but the microstructures are much more complex. Curiously, we observe that the higher the cooling rate, the higher the ferrite fraction in the martensitic steel. Different calculations based on the nucleation and growth of the austenitic phase have made it possible to propose a coherent scenario to explain the phase fractions present in the materials. The transition zone between the two steels shows strong variations in hardness. These variations are explained by changes in chemical composition, leading to modifications in phase change temperatures, and the particular thermal cycles seen during building. From a technological point of view, materials obtained by additive manufacturing have tensile performances very similar to those obtained by electron beam welding. It is shown that additive manufacturing also makes it possible to control the composition gradient between a martensitic and an austenitic steel
Jouenne, Stephane. "Structuration et renforcement du polystyrene par des copolymeres styrene/butadiene a gradient de composition". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00012106.
Testo completoFurimsky, Anna M. "Characterization of the lipid composition of washed and percoll gradient centrifuged epididymal mouse sperm". Thesis, University of Ottawa (Canada), 2001. http://hdl.handle.net/10393/9396.
Testo completoCoppin, Ross Mark. "Ecklonia maxima kelp forests along a thermal gradient: community composition and recovery from disturbance". University of the Western Cape, 2017. http://hdl.handle.net/11394/6163.
Testo completoClimate change will influence species distributions, survival and ecosystem functioning, mostly through changes in sea surface temperatures and storm disturbance. Species are expected to shift poleward in response to ocean warming, which will increase species interaction strength, and cause tropicalisation of temperate ecosystems. Furthermore, if storm frequency and magnitude increases, this could have detrimental effects for species already on their thermal limits. One such group of coastal species is kelp. Kelp are ecosystem engineers that rely on cool-temperate water for survival, and which support an array of fauna and flora. Kelp-based ecosystems are also highly productive, and provide important inorganic input into coastal food webs, largely through detritus. Temperature and disturbance have been shown to be important drivers of kelp ecosystems globally, and we expect that local changes in these drivers may affect kelp ecosystem composition and functioning along the south-western Cape coastline where they form extensive habitats.
Jouenne, Stéphane. "Structuration et renforcement du polystyrène par des copolymères styrène / butadiène à gradient de composition". Paris 6, 2005. http://www.theses.fr/2005PA066315.
Testo completoHutton, Jacob Matthew. "DIET COMPOSITION EXPLAINS REDUCTIONS IN STREAM SALAMANDER OCCUPANCY AND ABUNDANCE ALONG A CONDUCTIVITY GRADIENT". UKnowledge, 2018. https://uknowledge.uky.edu/forestry_etds/40.
Testo completoSimões, Catarina Cordeiro. "Species richness and composition of butterfly assemblages (Lepidoptera:Rhopalocera) along the altitudinal gradient of Serra da Estrela". Master's thesis, Universidade de Évora, 2016. http://hdl.handle.net/10174/20707.
Testo completoHasan, Md Nazmul. "Microstructure and mechanical properties of a CrMnFeCoNi high-entropy alloy with gradient structures". Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/23036.
Testo completoDahlø, Eva Sofie. "Variation in chemical composition and genetic differentiation among bilberry (Vaccinium myrtillus L.) populations on a latitudinal gradient". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-12795.
Testo completoLibri sul tema "Composition gradient"
Kennen, Jonathan G. Relation of environmental characteristics to the composition of aquatic assemblages along a gradient of urban land use in New Jersey, 1996-98. West Trenton, N.J: U.S. Dept. of the Interior, U.S. Geological Survey, 2002.
Cerca il testo completoKennen, Jonathan G. Relation of environmental characteristics to the composition of aquatic assemblages along a gradient of urban land use in New Jersey, 1996-98. West Trenton, N.J: U.S. Dept. of the Interior, U.S. Geological Survey, 2002.
Cerca il testo completo1942-, Tchudi Stephen, e NCTE Committee on Alternatives to Grading Student Writing., a cura di. Alternatives to grading student writing. Urbana, Ill: National Council of Teachers of English, 1997.
Cerca il testo completoGrading student writing: An annotated bibliography. Westport, Conn: Greenwood Press, 1998.
Cerca il testo completoBakkestuen, V. Vegetation composition, gradients and environment relationships of birch forest in six references areas in Norway. Oslo, Norway: Natural History Museum, University of Oslo, 2010.
Cerca il testo completo1939-, Zak Frances, e Weaver Christopher C. 1962-, a cura di. The theory and practice of grading writing: Problems and possibilities. Albany: State University of New York Press, 1998.
Cerca il testo completo1952-, Ryan Linda, a cura di. Evaluating children's writing: A handbook of grading choices for classroom teachers. 2a ed. Mahwah, N.J: L. Erlbaum, 2004.
Cerca il testo completoLibby, Allison, Bryant Lizbeth e Hourigan Maureen M. 1942-, a cura di. Grading in the post-process classroom: From theory to practice. Portsmouth, NH: Boynton/Cook-Heinemann, 1997.
Cerca il testo completoUnited States. National Aeronautics and Space Administration., a cura di. Acoustic propagation in a thermally stratified atmosphere: Final report. Salt Lake City, Utah: Mechanical and Industrial Engineering Dept., University of Utah, 1987.
Cerca il testo completoCenter, Langley Research, a cura di. Acoustic propagation in a thermally stratified atmosphere. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1988.
Cerca il testo completoCapitoli di libri sul tema "Composition gradient"
Steinhausen, Ralf, e Horst Beige. "Composition Gradient Actuators". In Piezoelectric and Acoustic Materials for Transducer Applications, 289–304. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-76540-2_14.
Testo completoSome, Daniel. "Composition-Gradient Multiangle Light Scattering". In Encyclopedia of Biophysics, 336–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-16712-6_770.
Testo completoGupta, Jugal K., Kirill Efimenko, Daniel A. Fischer, Jan Genzer e Nicholas L. Abbott. "Orientational Anchoring of Liquid Crystals on Surfaces Presenting Continuous Gradients in Composition". In Soft Matter Gradient Surfaces, 109–28. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118166086.ch5.
Testo completoBasak, Pratyay, Pedro Zapata, Keith Reed, Ismael Gomez e J. Carson Meredith. "Continuous Infusion Microchannel Approach to Generate Composition Gradients from Viscous Polymer Solutions". In Soft Matter Gradient Surfaces, 129–43. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118166086.ch6.
Testo completoGlöckner, Gottfried. "Separation of Copolymers by Composition through Gradient High-Performance Liquid Chromatography". In Gradient HPLC of Copolymers and Chromatographic Cross-Fractionation, 113–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-75799-0_9.
Testo completoGhorai, Mrinmoy, Soumitra Samanta e Bhabatosh Chanda. "Scale-Invariant Image Inpainting Using Gradient-Based Image Composition". In Computer Vision, Graphics, and Image Processing, 97–108. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-68124-5_9.
Testo completoMinton, Allen P. "Detection and Quantitative Characterization of Macromolecular Heteroassociations via Composition Gradient Sedimentation Equilibrium". In Analytical Ultracentrifugation, 523–32. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-55985-6_26.
Testo completoParihar, Rityuj Singh, e Neha Verma. "The Development of Cemented Carbide with Cobalt Composition Gradient by Powder Metallurgy Method". In Lecture Notes in Mechanical Engineering, 969–76. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7787-8_77.
Testo completoTrifonova, I. S. "Phytoplankton composition and biomass structure in relation to trophic gradient in some temperate and subarctic lakes of north-western Russia and the Prebaltic". In Phytoplankton and Trophic Gradients, 99–108. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-2668-9_8.
Testo completoAhmad, Zeeshan, Murtaza Hussain, Muhammad Iqbal, Shah Khalid, Habib Ahmad e Shujaul Mulk Khan. "Weed Vegetation in Maize Crop of the Shahbaz Garhi, District Mardan; Gradient of Diversity and Species Composition". In Biodiversity, Conservation and Sustainability in Asia, 657–79. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-73943-0_36.
Testo completoAtti di convegni sul tema "Composition gradient"
Livchits, Vladislav Ya. "Structure and Composition of Grin Glasses for Ion Exchange". In Gradient-Index Optical Imaging Systems. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/giois.1994.pd2.
Testo completoMiceli, Joseph J., e Denis P. Naughton. "A Model for Gradient Formation in Polycrystalline Germanium - Silicon Alloy Crystals via Czochralski Crystal Growing". In Gradient-Index Optical Imaging Systems. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/giois.1987.thd5.
Testo completoJones, Steven M. "Gradient composition sol-gel materials". In Symposium on Integrated Optoelectronics, a cura di Bruce S. Dunn, Edward J. A. Pope, Helmut K. Schmidt e Masayuki Yamane. SPIE, 2000. http://dx.doi.org/10.1117/12.384345.
Testo completoHoude-Walter, S. N. "Glass structure and ion exchange". In Gradient-Index Optical Imaging Systems. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/giois.1994.gtue1.
Testo completoZhang, Wei, e Wai-Kuen Cham. "Gradient-directed composition of multi-exposure images". In 2010 IEEE Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2010. http://dx.doi.org/10.1109/cvpr.2010.5540168.
Testo completoKilinc, Muhammed, Alireza Jalouli, Peijian Wang, Christian Neureuter, Hao Zeng e Tim Thomay. "2D Gradient Composition Alloys: Excitonic and Dielectric Properties". In CLEO: Applications and Technology. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/cleo_at.2020.jw2d.19.
Testo completoGhazanfari, Amir, e Ming C. Leu. "Composition Optimization for Functionally Gradient Parts Considering Manufacturing Constraints". In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-3960.
Testo completoShaikh, J. A., K. Murata, H. Kuramata e H. K. Mogensen. "Impact of a Vertical Temperature Gradient on H2S Gradient in Sour, Near-Critical Reservoir Fluids". In SPE Conference at Oman Petroleum & Energy Show. SPE, 2024. http://dx.doi.org/10.2118/218801-ms.
Testo completoSuzuki, Ryosuke, Masaaki Matsubara, Takumi Maruyama, Kenji Sakamoto e Kazuyuki Arakawa. "Experimental Investigation of Manufacturing Possibility of Multilayered Ni-ZrO2 System Functionally Graded Material by Powder Injection Molding". In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66233.
Testo completoDong, Changsheng, Minlin Zhong, Wenjin Liu, Minxing Ma e Hongjun Zhang. "Laser deposition of Ti6Al4V-316L composition gradient structure: Challenge on intermetallics". In ICALEO® 2009: 28th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2009. http://dx.doi.org/10.2351/1.5061595.
Testo completoRapporti di organizzazioni sul tema "Composition gradient"
Smith, G. P. Structure and Composition of Vegetation on Longleaf Plantation Sites Compared to Natural Stands Occurring Along an Environmental Gradient at the Savannah River Site. Office of Scientific and Technical Information (OSTI), ottobre 2000. http://dx.doi.org/10.2172/807720.
Testo completoSmith, Sean, Phillip van Mantgem e Dennis Odion. Vegetation community monitoring: Species composition and biophysical gradients in Klamath Network parks. National Park Service, marzo 2021. http://dx.doi.org/10.36967/nrr-2284769.
Testo completoBurton R. Patterson. Effect of Casting Conditions and Composition on Microstructural Gradients in Roll Cast Aluminum Alloys. Office of Scientific and Technical Information (OSTI), maggio 2008. http://dx.doi.org/10.2172/927781.
Testo completoWells, Aaron, Tracy Christopherson, Gerald Frost, Matthew Macander, Susan Ives, Robert McNown e Erin Johnson. Ecological land survey and soils inventory for Katmai National Park and Preserve, 2016–2017. National Park Service, settembre 2021. http://dx.doi.org/10.36967/nrr-2287466.
Testo completoWeihs, Timothy, e Michael Falk. Final Report for DOE Award: DE-SC0019217: Experimental and Computational Studies of Crystal Nucleation in Composition Gradients. Office of Scientific and Technical Information (OSTI), maggio 2024. http://dx.doi.org/10.2172/2349115.
Testo completoMarley, M. S., e G. Glatzmaier. The role of composition gradients in the evolution of uranus and neptune. Progress report, 1 January 1994--1 September 1994. Office of Scientific and Technical Information (OSTI), dicembre 1994. http://dx.doi.org/10.2172/82333.
Testo completoIsom, Shelby. Compositional and Physical Gradients in the Magmas of the Devine Canyon Tuff, Eastern Oregon: Constraints for Evolution Models of Voluminous High-silica Rhyolites. Portland State University Library, gennaio 2000. http://dx.doi.org/10.15760/etd.5773.
Testo completoKnotek-Smith, Heather, e Catherine Thomas. Microbial dynamics of a fluidized bed bioreactor treating perchlorate in groundwater. Engineer Research and Development Center (U.S.), settembre 2022. http://dx.doi.org/10.21079/11681/45403.
Testo completoLahav, Ori, Albert Heber e David Broday. Elimination of emissions of ammonia and hydrogen sulfide from confined animal and feeding operations (CAFO) using an adsorption/liquid-redox process with biological regeneration. United States Department of Agriculture, marzo 2008. http://dx.doi.org/10.32747/2008.7695589.bard.
Testo completoSinghvi, Punit, Javier García Mainieri, Hasan Ozer e Brajendra Sharma. Rheology-Chemical Based Procedure to Evaluate Additives/Modifiers Used in Asphalt Binders for Performance Enhancements: Phase 2. Illinois Center for Transportation, giugno 2021. http://dx.doi.org/10.36501/0197-9191/21-020.
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