Bibliografie tematiche / Composition

Indice

  1. Articoli di riviste
  2. Tesi
  3. Libri
  4. Capitoli di libri
  5. Atti di convegni
  6. Rapporti di organizzazioni

Letteratura scientifica selezionata sul tema "Composition"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 25 luglio 2025

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "Composition".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Articoli di riviste sul tema "Composition"

1

Colburn, Jamison. "Composition Over Division: The Statutes of the National Forest System." Michigan Journal of Environmental & Administrative Law, no. 11.1 (2021): 125. http://dx.doi.org/10.36640/mjeal.11.1.composition.

Testo completo
Abstract (sommario):
In September 2020, the U.S. Forest Service took the extraordinary step of closing all 18 national forests in California. The risk of catastrophic fire had become so acute that tolerating any human visitors—who could ignite more—was no longer tenable. Damages from the fires of 2020 are still being tallied, but the catastrophe is hard to deny. Five of the state’s six largest fires on record occurred in 2020. Migrating birds dropped from the sky by the thousands from some combination of asphyxiation, exhaustion, and starvation. An estimated 80% of California’s watersheds had recently burned by 20
Gli stili APA, Harvard, Vancouver, ISO e altri
2

ANTONENKO, Аrtem, Tetiana , BROVENKO, Myroslav KRYVORUCHKO, Nataliya STUKALSKA, Galina TOLOK, and Oleksii TONKYKH. "SIMULATION OF THE RECIPE COMPOSITION OF HEALTHY FOOD PRODUCTS BASED ON FUNCTIONAL COMPOSITIONS." Herald of Khmelnytskyi National University. Technical sciences 313, no. 5 (2022): 243–50. http://dx.doi.org/10.31891/2307-5732-2022-313-5-243-250.

Testo completo
Abstract (sommario):
The article provides justification and development of the methodology for modeling the recipe composition of health food products based on functional compositions. The basis of the modeling is the principle of food combinatorics, which consists in the justified quantitative selection of the main raw materials and food additives, which together ensure the formation of the necessary organoleptic and physicochemical properties, the given level of nutritional (food, biological) and energy value. Modeling of food products is the process of creating a product as a single integrated system consisting
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Helyer, Nigel. "Co-composition and de-composition: Biological agency as a compositional tool." Technoetic Arts 18, no. 2-3 (2020): 159–72. http://dx.doi.org/10.1386/tear_00035_1.

Testo completo
Abstract (sommario):
GeneMusiK is an artistic project that puts into play ideas about the capacity of physical morphologies to act as mnemonic systems by using DNA to transcode and remix musical structures. The project suggests that both biological and cultural information can function as both macro- and micro-scale structures arrayed at physical loci to create topologies which function as keys to the mapping of memory.
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Quertermous, Katie S. "Fixed point composition and Toeplitz-compositionC⁎-algebras." Journal of Functional Analysis 265, no. 5 (2013): 743–64. http://dx.doi.org/10.1016/j.jfa.2013.05.009.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

McKenna, Amy M., Alan G. Marshall, and Ryan P. Rodgers. "Heavy Petroleum Composition. 4. Asphaltene Compositional Space." Energy & Fuels 27, no. 3 (2013): 1257–67. http://dx.doi.org/10.1021/ef301747d.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Azadi, Samaneh, Deepak Pathak, Sayna Ebrahimi, and Trevor Darrell. "Compositional GAN: Learning Image-Conditional Binary Composition." International Journal of Computer Vision 128, no. 10-11 (2020): 2570–85. http://dx.doi.org/10.1007/s11263-020-01336-9.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Greco, Alberto, and Elena Carrea. "Grounding compositional symbols: no composition without discrimination." Cognitive Processing 13, no. 2 (2011): 139–50. http://dx.doi.org/10.1007/s10339-011-0427-7.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

V.A., Medvedev, and Iljenko О.О. "Tendencies of changes in structure of landscape compositions of Dendrological Park Trostjanets of the NAS of Ukraine." Plant Introduction 74 (June 1, 2017): 49–59. https://doi.org/10.5281/zenodo.2299984.

Testo completo
Abstract (sommario):
<strong>Objective </strong> &ndash; to investigate main trends of development and direction of changes in the structure of landscape compositions of Dendropark Trostjanets during 2005&ndash;2015. <strong>Material and methods.</strong> 230 landscape compositions were the objects of this investigation. They were represented by mixed (coniferous with desidous plants) and monotypical (single species) ornamental groups. The structural changes of compositions were determined comparing the number of taxa and plants (individuals) and their decorative characteristics in 2005 and 2015. <strong>Results.
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Eshdavlatova, G. E., and A. X. Panjiyev. "Study of thickening polymeric compositions for printing fabric of blended fibers." E3S Web of Conferences 402 (2023): 14032. http://dx.doi.org/10.1051/e3sconf/202340214032.

Testo completo
Abstract (sommario):
Thickening compositions of a new composition for printing mixed fabrics based on cotton and nitron fibers have been developed. The influence of the components of dampening compositions on the rheological properties of the composition depending on their concentration was studied. Established the development of a new composition of the thickening composition of its physico-chemical and rheological properties.
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Maricela, Bravo. "SIMILARITY MEASURES FOR WEB SERVICE COMPOSITION MODELS." International Journal on Web Service Computing (IJWSC) 5, no. 1 (2014): 01–16. https://doi.org/10.5281/zenodo.3628127.

Testo completo
Abstract (sommario):
A Web service composition is an interconnected set of multiple specialized Web service operations, which complement each other to offer an improved tool capable of solving more complex problems. Manual design and implementation of Web service compositions are among the most difficult and error prone tasks. To face this complexity and to reduce errors at design time, the developer can alternatively search and reuse existing compositions that have solved similar problems. Thus the problem of designing and implementing Web service compositions can be reduced to the problem of finding and selectin
Gli stili APA, Harvard, Vancouver, ISO e altri
Più fonti

Tesi sul tema "Composition"

1

Mulvey, Grainne. "Composition portfolio : ten compositions and commentaries." Thesis, University of York, 1998. http://etheses.whiterose.ac.uk/10860/.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Todd, Benedict Francis de Pomeroy. "Portfolio of compositions and composition commentary." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730838.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Beiert, Michael. "Portfolio of compositions, with accompanying composition commentary." Thesis, University of Liverpool, 2015. http://livrepository.liverpool.ac.uk/2042979/.

Testo completo
Abstract (sommario):
The following chapters describe compositional methods applied to the compositions of the portfolio (Volume I), which consists of eight works for instruments and electronic sound, as well as one purely electronic piece. The main concern in all these works is aspects of open form and, to a lesser extent, indeterminacy during performance. I highlight the research I have undertaken in preparation for each of the compositions, show how all of these pieces are progressively linked by my evolving interest in open form, and place them in context with works by other composers, past and present, who hav
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Foster, Simon. "A compositional semantic theory for service composition." Thesis, University of Sheffield, 2010. http://etheses.whiterose.ac.uk/1723/.

Testo completo
Abstract (sommario):
Service Composition refers to a popular modern software paradigm for building applications by combining distributed reactive components using the World-Wide-Web as the medium. The approach is characterised by the use of standardised protocols, languages and representations such as XML, which ensures that services are platform agnostic. Whilst the architecture is well understood for simple single-interaction services built in the style of classical procedures from the traditional programming paradigm, much discussion is still taking place with regard to more complicated, fully reactive services
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Mancero, Baquerizo Daniel. "Composition musicale et modélisation de l'espace hétérophonique des Soundscape Compositions." Thesis, Paris 8, 2019. http://www.theses.fr/2019PA080041.

Testo completo
Abstract (sommario):
Ce mémoire de thèse traite de l’analyse musicale et de la formalisation desévénements sonores qui structurent le paysage sonore. À cette fin, ce travail s’articule endeux axes complémentaires : d’une part, il constitue une évaluation des enjeux théoriqueset esthétiques au sein de l’écologie acoustico-sonore, d’un point de vue poïétique — centrésur la conception d’oeuvres musicales fondées sur le paysage sonore ou soundscapecompositions ; cela suppose de prendre en compte non seulement les préceptes théoriquesqui font de l’écologie sonore une discipline artistique à part entière, mais également
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Hoadley, Richard. "Composition." Thesis, Durham University, 1993. http://etheses.dur.ac.uk/9281/.

Testo completo
Abstract (sommario):
This portfolio contains a series of compositions written over the period 1987-93. Each was written for a specific competition, event or concert. Details of each individual piece can be found within the volume of commentaries included.
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Abbott, Paul John. "Composition." Thesis, University of York, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.547331.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Kontz, Catherine Daisy Renee. "Composition." Thesis, Goldsmiths College (University of London), 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498246.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Bowman, Edward Stuart Timothy. "Composition." Thesis, Goldsmiths College (University of London), 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499114.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

McKay, D. T. "Composition." Thesis, Queen's University Belfast, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273087.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
Più fonti

Libri sul tema "Composition"

1

Bartashevich, Aleksandr. Composition and design of furniture. INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1027238.

Testo completo
Abstract (sommario):
The book outlines the types of composition, its basic properties and quality. We consider the means of compositional shaping and fundamentals of design. The role of the analysis of the composition of the furniture in the design practice. Contains a large number of pictures on formal composition and the composition of the furniture.&#x0D; Designed for students enrolled in the specialty "Technology of logging and wood processing industries". Will be useful to students of the faculties of training and retraining students of colleges and technical schools woodworking profile, as well as specialist
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Thornicroft, Cassius. Composition. C. Thornicroft, 1999.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Press, Wild Hawthorn, ed. Composition. Wild Hawthorn Press, 1995.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Kent, Sarah. Composition. Dorling Kindersley, 1995.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

H, Gruenfeld Deborah, ed. Composition. JAI Press, 1998.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Redgate, Christopher. Composition changing instruments changing composition. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199355914.003.0011.

Testo completo
Abstract (sommario):
This chapter discusses the collaborative, cyclical relationship between composition and instrument development as it follows the journey from technically extreme compositions, via the design and manufacture of the Howarth-Redgate oboe, to composers’ responses to this new instrument. The chapter takes as its starting point the extreme technical demands that result from the development of extended techniques—for example, the problems with the standard instrument’s keywork that stem from such compositional approaches. Then, through reference to Roger Redgate’s Ausgangspunkte and other works that
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Composition, Non-composition. Routledge, 2012.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Lis, Kamila. Composition Book: Composition. Independently Published, 2021.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Abida, Hassane. Composition Notebook: Composition. Independently Published, 2021.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Deléglise, Philippe. Composition décomposition. s.n.], 1993.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
Più fonti

Capitoli di libri sul tema "Composition"

1

Gelderie, Marcus. "Strategy Composition in Compositional Games." In Automata, Languages, and Programming. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-39212-2_25.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Bährle-Rapp, Marina. "composition." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_2369.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Gooch, Jan W. "Composition." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_2751.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Atreya, Sushil K. "Composition." In Atmospheres and Ionospheres of the Outer Planets and Their Satellites. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71394-1_1.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

van der Aalst, W. M. P. "Composition." In Encyclopedia of Database Systems. Springer New York, 2017. http://dx.doi.org/10.1007/978-1-4899-7993-3_1196-2.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Roberts, Gordon. "Composition." In Mastering Photography. Macmillan Education UK, 1995. http://dx.doi.org/10.1007/978-1-349-13506-6_7.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Dalrymple, Mark, and Scott Knaster. "Composition." In Learn Objective-C on the Mac. Apress, 2009. http://dx.doi.org/10.1007/978-1-4302-1816-6_5.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Burton, S. H. "Composition." In Work Out English Language ‘O’ Level & GCSE. Macmillan Education UK, 1986. http://dx.doi.org/10.1007/978-1-349-07193-7_2.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Jacobs, Marius. "Composition." In The Tropical Rain Forest. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-72793-1_7.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Waller, Jason. "Composition." In Bad Arguments. John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119165811.ch53.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri

Atti di convegni sul tema "Composition"

1

Li, Wei, Zhen Huang, Xinmei Tian, et al. "Interpretable Composition Attribution Enhancement for Visio-linguistic Compositional Understanding." In Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing. Association for Computational Linguistics, 2024. http://dx.doi.org/10.18653/v1/2024.emnlp-main.810.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Mawlod, Arwa, Afzal Memon, Nikolaos Varotsis, et al. "Reducing Composition Characterization Uncertainties Through Advanced Machine Learning (ML) Techniques - Data Clustering." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211378-ms.

Testo completo
Abstract (sommario):
Abstract Objectives/Scope Round-robin tests and laboratory audits have demonstrated that reservoir fluid compositions measurements can be systematically uncertain. To reduce compositional uncertainties, this work uses Machine Learning (ML) algorithms to update the existing measured fluid compositions and applies a compositional adjustment anchored on a decreased number of selected fluids representative of the entire compositional space. The resulting composition will reduce uncertainty in exploration and production models and diminish the risks in field development decisions. Methods, Procedur
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Msheik, H., A. Abran, and E. Lefebvre. "Compositional structured component model: handling selective functional composition." In Proceedings. 30th Euromicro Conference, 2004. IEEE, 2004. http://dx.doi.org/10.1109/eurmic.2004.1333358.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Speiser, Sebastian. "Policy of Composition ? Composition of Policies." In 2011 IEEE International Symposium on Policies for Distributed Systems and Networks - POLICY. IEEE, 2011. http://dx.doi.org/10.1109/policy.2011.21.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Reames, Donald V. "Energetic particle composition." In SOLAR AND GALACTIC COMPOSITION: A Joint SOHO/ACE Workshop. AIP, 2001. http://dx.doi.org/10.1063/1.1433994.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Whitson, Curtis Hays, Bilal Younus, and Markus Hays Nielsen. "Separator Sample Analysis and Calculating Wellstream Composition." In Asia Pacific Unconventional Resources Symposium. SPE, 2023. http://dx.doi.org/10.2118/217328-ms.

Testo completo
Abstract (sommario):
Abstract This paper discusses the use of separator gas and separator oil samples as the primary method used in tight unconventional wells. Separator samples provide direct measurement of surface product compositions and properties, but they are primarily used in the calculation of wellstream composition. Our discussion encompasses a comprehensive and quantitative QC and correction of separator sample compositions, also providing improved accuracy in the estimation of wellstream composition, both for conventional and tight unconventional wells. The standard QC of separator sample compositions a
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Wimmer-Schweingruber, Robert F. "Solar and Galactic Composition." In SOLAR AND GALACTIC COMPOSITION: A Joint SOHO/ACE Workshop. AIP, 2001. http://dx.doi.org/10.1063/1.1433972.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Verges, Melody A., Paul J. Schilling, Jeffrey D. Germond, et al. "Young’s Modulus and Hardness of Zr0.5Hf0.5CoxRh1−xSb0.99Sn0.01 and Zr0.5Hf0.5CoxIr1−xSb0.99Sn0.01 Half-Heusler Alloys." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38988.

Testo completo
Abstract (sommario):
Mechanical testing was performed to determine the influence of compositional changes on the Young’s modulus and hardness of half-Heusler compounds of the base composition Zr0.5Hf0.5CoSb0.99Sn0.01. In the efforts to decrease the thermal conductivity of the composition toward the development of thermoelectric materials with high thermal conversion efficiencies, specimens were fabricated with varying amounts of rhodium and iridium at the cobalt site. In addition to the general Zr0.5Hf0.5CoSb0.99Sn0.01 composition, six hot-pressed samples of the Zr0.5Hf0.5CoxRh1−xSb0.99Sn0.01 (0.0≤x≤1.0) compositi
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Malakuti, Somayeh, and Mehmet Aksit. "Evolution of composition filters to event composition." In the 27th Annual ACM Symposium. ACM Press, 2012. http://dx.doi.org/10.1145/2245276.2232080.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

"COCO: COMPOSITION MODEL AND COMPOSITION MODEL IMPLEMENTATION." In 7th International Conference on Enterprise Information Systems. SciTePress - Science and and Technology Publications, 2005. http://dx.doi.org/10.5220/0002525503400345.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri

Rapporti di organizzazioni sul tema "Composition"

1

Chandy, K. M. Program Composition. Defense Technical Information Center, 1994. http://dx.doi.org/10.21236/ada278377.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Weisbrod, Kirk Ryan, Douglas Kirk Veirs, David John Funk, and David Lewis Clark. Salt Composition Derived from Veazey Composition by Thermodynamic Modeling and Predicted Composition of Drum Contents. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1241644.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Wiederhold, Gio. Scalable Knowledge Composition. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada399067.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Morton, A., and S. Van, eds. Framework for Metric Composition. RFC Editor, 2010. http://dx.doi.org/10.17487/rfc5835.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Morton, A., and E. Stephan. Spatial Composition of Metrics. RFC Editor, 2011. http://dx.doi.org/10.17487/rfc6049.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Wada, Roy, and Erdal Tekin. Body Composition and Wages. National Bureau of Economic Research, 2007. http://dx.doi.org/10.3386/w13595.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Caballero, Ricardo. A Fallacy of Composition. National Bureau of Economic Research, 1991. http://dx.doi.org/10.3386/w3735.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Wiederhold, Gio, and Neal Sample. Flexible Software Composition CHAIMS. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada384735.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Eickmeyer, Kasey. Composition of Cohabiting Families. National Center for Family and Marriage Research, 2019. http://dx.doi.org/10.25035/ncfmr/fp-19-02.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Eickmeyer, Kasey. Composition of Cohabiting Families. National Center for Family and Marriage Research, 2019. http://dx.doi.org/10.25035/ncfmr/fp-19-02.html.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
Ti possono interessare anche gli elenchi estesi di opere sul tema "Composition":
Articoli di riviste Tesi Libri
Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!

Vai alla bibliografia