Relevant bibliographies by topics / Natural experiment

Academic literature on the topic 'Natural experiment'

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Published: 4 June 2021
Last updated: 2 February 2024

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Journal articles on the topic "Natural experiment"

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Kennedy‐Shaffer, Lee. "Baseball's natural experiment." Significance 19, no. 5 (September 26, 2022): 42–45. http://dx.doi.org/10.1111/1740-9713.01691.

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Lazurskii, A. F. "The Natural Experiment." Journal of Russian & East European Psychology 35, no. 2 (March 1997): 32–41. http://dx.doi.org/10.2753/rpo1061-0405350232.

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Heath, Davidson, Matthew C. Ringgenberg, Mehrdad Samadi, and Ingrid M. Werner. "Reusing Natural Experiments." International Finance Discussion Paper 2022, no. 1339 (April 1, 2022): 1–53. http://dx.doi.org/10.17016/ifdp.2022.1339.

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After a natural experiment is first used, other researchers often reuse the setting, examining different outcome variables. We use simulations based on real data to illustrate the multiple hypothesis testing problem that arises when researchers reuse natural experiments. We then provide guidance for future inference based on popular empirical settings including difference-in-differences regressions, instrumental variables regressions, and regression discontinuity designs. When we apply our guidance to two extensively studied natural experiments, business combination laws and the Regulation SHO pilot, we find that many results that were statistically significant using single hypothesis testing do not survive corrections for multiple hypothesis testing.
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Myers, James. "Chinese as a natural experiment." Mental Lexicon 5, no. 3 (December 31, 2010): 421–35. http://dx.doi.org/10.1075/ml.5.3.09mye.

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The Chinese lexicon is characterized by its typologically unique one-to-one-to-one mapping of morphemes, syllables, and orthographic characters. This architecture poses practical difficulties for the psycholinguist wanting to study lexical processing in Chinese. More seriously, seen as a natural experiment, Chinese challenges assumptions that processing models traditionally make about the roles of phonemes, morphemes, lemmas, and words in lexical access. It is argued that cross-linguistic variation in lexical processing cannot be accommodated by simply modifying lexical processing models, but instead what is needed is a universal learning model. Suggestions are given for how such a model could be tested empirically by extending methods already used for testing language-specific lexical processing.
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Cannon, Edmund Stuart, and Giam Pietro Cipriani. "Euro-Illusion: A Natural Experiment." Journal of Money, Credit, and Banking 38, no. 5 (2006): 1391–403. http://dx.doi.org/10.1353/mcb.2006.0066.

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Luedtke, Barbara E. "An Experiment in Natural Fracture." Lithic Technology 15, no. 2 (August 1986): 55–60. http://dx.doi.org/10.1080/01977261.1986.11720868.

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HAUGAARD, JEFFREY J., and CINDY HAZAN. "Adoption as a natural experiment." Development and Psychopathology 15, no. 4 (November 14, 2003): 909–26. http://dx.doi.org/10.1017/s0954579403000427.

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Adoption provides a unique opportunity for the study of child development. Because adopted children are raised in families in which they have no genetic relationship with their parents, and possibly none with their siblings, they provide a rare opportunity to study the relative importance of genetic, shared environmental, and nonshared environmental influences on the development of child characteristics and behaviors. Because children are adopted from a variety of circumstances and at a wide range of ages, studies of adopted children and their families provide researchers the opportunity to examine the short- and long-term influences of a wide range of environments on children's development. Because children are adopted into homes with a range of characteristics (e.g., multiracial homes), adoption provides the opportunity to study the range of influences of these homes on child development. Adoption research that focuses on each of these areas is reviewed in this article. We present conclusions about the value of adoption in psychological research and some reasons why many psychologists ignore the opportunities presented by studying adoptive families, as well as potential useful directions for future research with adopted children and their families.
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Segal, Nancy L. "Twins: The finest natural experiment." Personality and Individual Differences 49, no. 4 (September 2010): 317–23. http://dx.doi.org/10.1016/j.paid.2009.11.014.

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Rosenzweig, Mark R., and Kenneth I. Wolpin. "Natural “Natural Experiments” in Economics." Journal of Economic Literature 38, no. 4 (December 1, 2000): 827–74. http://dx.doi.org/10.1257/jel.38.4.827.

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The recent literature exploiting natural events as “natural experiment” instruments is reviewed to assess to what extent it has advanced empirical knowledge. A weakness of the studies that adopt this approach is that the necessary set of behavioral, market, and technological assumptions made by the authors in justifying their interpretations of the estimates is often absent. The methodology and findings from twenty studies are summarized and simple economic models are used to elucidate the implicit assumptions made by the authors and to demonstrate the sensitivity of the interpretations of the findings to the relaxation of some of these assumptions.
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Moiseeva, A. V., and A. S. Titlova. "CONTROLLED PSYCHOLINGUISTIC EXPERIMENT VS. EXPERIMENT IN “NATURAL” INTERNET-COMMUNICATION." Vestnik Bashkirskogo universiteta 7, no. 2 (2018): 560. http://dx.doi.org/10.33184/bulletin-bsu-2018.2.52.

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Dissertations / Theses on the topic "Natural experiment"

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Scully, Keelin. "Natural attenuation of biodiesel in a sandtank experiment." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/60789.

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The use of alternative fuels, including biodiesel, has increased steadily in the last two decades, increasing the risk of accidental spills. However, a comprehensive understanding of the fate of biodiesel in the subsurface is currently lacking. A large sandtank experiment was conducted over 18 months to evaluate the spatial and temporal evolution of biodiesel biodegradation with a focus on vadose zone impacts. 80 L of biodiesel was applied to the center of the sandtank. Monitoring and analysis focused on two zones: the saturated zone including the capillary fringe, and the unsaturated zone. Measured parameters included surficial CO2 and CH4 effluxes, gas concentrations and their isotopic composition in the vadose zone, moisture contents and temperature. In the saturated zone, groundwater chemistry was characterized based on dissolved cation and anion concentrations, volatile fatty acids (VFAs), pH and alkalinity. The experimental results displayed a rapid response to the biodiesel release, revealed by increases of surficial CO2 effluxes and CO2-concentrations in the vadose zone, while O2 concentrations remained close to atmospheric levels. In the saturated zone, elevated VFA concentrations were observed together with pronounced increases in cation concentrations, specifically Ca, Mg, Fe and Mn, indicating the rapid development of anaerobic conditions. The generation of acidity associated with aerobic and anaerobic degradation reactions led to a decline in pH, locally to values below 5, likely inhibiting the progress of biodegradation. The onset of CH4 generation was delayed and coincided with reaching maximum VFA concentrations in the saturated zone. CH4 effluxes at the ground surface were limited; however, stable isotope analysis indicated that CH4 oxidation in the vadose zone was weak, likely due to low-pH conditions. Increases in dissolved concentrations of Fe and Mn were attributed to the reductive dissolution of Mn- and Fe-oxides, with possible contributions from the dissolution of Fe- and Mn-bearing dolomite. Carbon balance estimates showed that the biodiesel was recalcitrant to degradation, and at 590 days less than 5% of the biodiesel had been transformed to VFAs, CO2 and CH4. The average biodiesel degradation rate derived from the carbon balance is 1.3 x 10-8 mol L-1 H2O s-1, comparable to literature values.
Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
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Kassam, Saleem. "Comparing angiographic coronary revascularization strategies, a "natural" experiment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0007/MQ40714.pdf.

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Hellekant, Bo. "Ranked Choice Voting in Alameda County : A Natural Experiment." Thesis, Uppsala universitet, Statsvetenskapliga institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-403176.

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Bloemhof, Barbara Lynn Mestelman Stuart. "Market power and the sale of Ontario residential natural gas: An institutional analysis and a laboratory experiment." *McMaster only, 2004.

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Herridge, V. L. "Dwarf elephants on Mediterranean islands : a natural experiment in parallel evolution." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/133456/.

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Mediterranean dwarf elephants represent some of the most striking examples of phyletic bodysize change observed in mammals and are emblematic of the ‘island rule’, where small mammals become larger and large mammals dwarf on islands. The repeated dwarfing of mainland elephant taxa (Palaeoloxodon antiquus and Mammuthus meridionalis) on Mediterranean islands provide a ‘natural experiment’ in parallel evolution, and a unique opportunity to investigate the causes, correlates and mechanisms of island evolution and body-size change. This thesis provides the first pan-Mediterranean study that incorporates taxonomic and allometric approaches to the evolution of dwarf elephants, establishing a framework for the investigation of parallel evolution and key morphological correlates of insular dwarfism. I show that insular dwarfism has evolved independently in Mediterranean elephants at least six times, resulting in at least seven dwarf species. These species group into three, broad size-classes: ‘smallsized’ (P. falconeri, P. cypriotes and M. creticus), ‘medium-sized’ (P. mnaidriensis and P. tiliensis) and ‘large-sized’ (Palaeoloxodon sp. nov. and ‘P. antiquus’ from Crete). Size-shape similarities between independent lineages from the east and central Mediterranean indicate that homoplasy is likely among similar-sized taxa, with implications for the existence of meta-taxa. These homoplasies appear to result from the exploitation of ontogenetic trajectories common to the Elephantidae, underpinning the evolution of small size. Interspecific allometry between dwarf and full-sized species can be seen to result from these common, but grade-shifted ontogenetic trajectories, and this may also be true of broader macroevolutionary trends in the Proboscidea. These size-related grade-shifts suggest that similar, but increasingly extreme, modifications of pre-natal development underpin the evolution of insular dwarfism in elephants. By incorporating research into the morphology and ontogeny of teeth and post-crania in fullsized extant and extinct elephants, this thesis provides new insights into insular dwarfism, elephant systematics and elephant functional morphology and adaptation.
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O'Connor, Maureen Ann 1956. "Pre-voir dire instruction of the jury pool: A natural experiment." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291611.

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Presenting jury instructions at the pretrial stage of a trial may have benefits for how jurors evaluate evidence and for juror satisfaction. It is not yet clear what effect such instructions have on juror bias. Instruction to the jury prior to trial might reduce the effects of juror bias on verdict decisions. But, instruction prior to jury selection might encourage potential jurors to mask biases, making it more difficult for attorneys to obtain information during voir dire. This paper reports a natural experiment which sheds some empirical light on the question. The judge in a homicide case gave the first group of prospective jurors only a brief orientation lecture. The second group received an additional 15-minute lecture that consisted of legal instructions on procedure and proof. The paper reports analyses comparing the two groups and suggests implications of voir dire instruction on bias in the jury pool.
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Calabrese, Debora. "Design evaluation of a scaled experiment to investigate natural circulation in MYRRHA." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Questo elaborato tratta il reattore di ricerca MYRRHA, in fase di sviluppo presso il centro di ricerca belga SCK CEN. In particolare si focalizza sullo studio della circolazione naturale del refrigerante, ovvero l'LBE (Lead-Bismuth Eutectic), utilizzata come sistema passivo di sicurezza dopo lo shutdown del reattore in caso di mancato funzionamento delle pompe. Lo scopo di questo lavoro è la creazione di un modello in scala ridotta del reattore per simulare la circolazione naturale dell'LBE. Lo scaling down del reattore viene effettuato tramite lo studio dei numeri adimensionali e la scelta di mantenere costante il coefficiente di scambio termico tra il reattore e il modello in scala. Questa scelta viene fatta al fine di avere sufficiente similarità tra i due per quanto concerne lo scambio termico, in modo che il comportamento del fluido sia lo stesso di quello all'interno del reattore. Nella prima parte vengono effettuate simulazioni 2D, tramite ANSYS 2020, per confrontare la circolazione naturale di fluidi caratterizzati da diverso numero di Prandtl. Viene, inoltre, effettuato un confronto tra i coefficienti di scambio termico ottenuti dalla simulazione e quelli ottenuti tramite calcoli a mano, al fine di verificare che la simulazione possa ben rappresentare il comportamento reale del fluido. Vengono poi calcolate le temperature che si hanno all'interno del reattore rimuovendo una potenza di 1MW, i relativi numeri adimensionali, quali Pr, Gr, Ra e Nu, e i coefficienti di scambio termico dell'LBE per ciascuna area, attraverso un modello semplificato per poter ricavare le dimensioni del modello in scala. Dopo aver disegnato uno sketch del modello, sono state infine effettuate delle simulazioni 3D del modello in scala per verificarne il comportamento, rispetto a quello reale. Le simulazioni 3D hanno dimostrato che il modello rispecchia correttamente il comportamento reale del fluido e che la circolazione naturale può essere usata per raffreddare il reattore.
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Rådberg, Ninni. "Experiment om tyngdkraft i fysikämnet : En kvalitativ studie om i vilken utsträckning barns intresse och lärande uttrycks genom experiment i fysikämnet." Thesis, Karlstads universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-80932.

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Cipolato, Liza. "Analise exergetica de um ciclo em cascata para liquefação de gas natural." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266261.

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Orientador: Jose Vicente Hallak D'Angelo
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
Made available in DSpace on 2018-08-11T14:06:54Z (GMT). No. of bitstreams: 1 Cipolato_Liza_M.pdf: 1029854 bytes, checksum: e29def5b437d5ad6a00d8fc677c63bf5 (MD5) Previous issue date: 2008
Resumo: O comércio de gás natural liquefeito apresenta um crescente interesse por parte tanto de países exportadores como dependentes desta fonte energética. Apesar de o transporte por gasoduto ser muito menos suscetível a perdas, ele se torna inviável a longas distâncias ou a demandas variáveis. A liquefação do gás natural também proporciona o armazenamento desta fonte energética numa forma estável e de alto potencial energético,evidenciando o caráter estratégico do processo. Desde a década de 60 a tecnologia para liquefação do gás natural é utilizada, porém, apenas há alguns anos os países iniciaram o comércio desta fonte energética em larga escala e isto acarretará um aumento mundial tanto no número de terminais exportadores (plantas de liquefação) quanto importadores (terminais de regaseificação). O processo de liquefação do gás natural ocorre através de uma sequência de ciclos termodinâmicos de refrigeração, e estes, por sua vez, precisam trabalhar de forma otimizada para reduzir perdas. A análise exergética é uma ferramenta muito útil para avaliar estas perdas e pode ser essencial na instalação de uma nova planta ou melhoria de uma já existente. O presente trabalho realizou uma análise exergética de um ciclo de refrigeração utilizado para a liquefação de gás natural, o qual é do tipo multiestágio em cascata, padrão utilizado atualmente, sendo o mais conhecido e difundido entre as indústrias da área. Primeiramente, o processo foi simulado em software comercial Hysys (versão 3.2 da Aspen Technology). O resultado obtido da simulação foi validado através de comparação com dados da literatura, mostrando-se adequado. Em seguida, a simulação foi testada em diferentes condições operacionais, seguindo um planejamento fatorial completo, o qual teve como objetivo verificar a influência da variação das pressões de seis pontos específicos do ciclo sobre a variável resposta, que é a taxa de exergia total destruída no processo, visando sua minimização. Os resultados obtidos levaram a uma nova condição de operação para o ciclo de refrigeração com redução de aproximadamente 48% da taxa de exergia destruída com relação aos dados do caso obtido da literatura. Tal resultado evidencia o potencial da metodologia termodinâmica utilizada, demonstrando sua aplicação em estudos de melhoria do desempenho de ciclos de refrigeração para a indústria de liquefação de gás natural
Abstract: The liquefied natural gas trade shows a growing interest either from countries which are exporters or countries which depend on this kind of energetic source. Although gas pipelines are less susceptible of transportation losses, they become impracticable when distances are too long or when demands are highly variable. The liquefaction of natural gas also enables its storage in a stable way, in which energetic potential is high, expressing the strategic purpose of the process. Since the 1960 decade natural gas liquefying technology is been used, but only a few years ago countries have started the trade of this kind of energetic source on a large scale. Consequently, the number of exporter terminals (liquefaction industries) and importer terminals (regasification plants) will increase worldwide. The natural gas liquefaction process is based on a sequence of refrigeration thermodynamics cycles, which need to work in an optimized way in order to reduce losses. The exergy analysis is a very useful tool to evaluate these losses and can be crucial in a new plant installation or in a current one improvement. This dissertation performed an exergy analysis of a multistage cascade refrigeration cycle applied in natural gas liquefaction. The multistage cascade cycle is currently the standard type, being the most known and diffused among industries. Firstly, the process was simulated in commercial software Hysys (version 3.2 of Aspen Technology). The result obtained from the simulation was validated by comparison with the literature data and showed a very adequate similarity. After that, the simulation was checked in different operational conditions, according to the complete factorial design of experiments. The design of experiments¿ objective was to verify the pressure influence of six specific points of the cycle over the response variable, which is the rate of total exergy destroyed in the cycle, in order to reach its minimal value. The results showed a new operational condition to the refrigeration cycle, in which the destroyed exergy rate was reduced by approximately 48% in comparison with literature data. This result provides evidence of the high potential of the thermodynamic tool used, showing its application in studies of performance improvements for refrigeration cycles in industries of natural gas liquefaction
Mestrado
Sistemas de Processos Quimicos e Informatica
Mestre em Engenharia Química
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Rhéaume, Dave. "Income Effects on Worker Productivity : a natural experiment in the tree-planting industry." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23865/23865.pdf.

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Books on the topic "Natural experiment"

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Giannetti, Daniela, and Bernard Grofman, eds. A Natural Experiment on Electoral Law Reform. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-7228-6.

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Chevalier, Arnaud. Parental education and child's education: A natural experiment. Bonn, Germany: IZA, 2004.

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1947-, Gooding David, Pinch T. J, and Schaffer Simon 1955-, eds. The Uses of experiment: Studies in the natural sciences. Cambridge [England]: Cambridge University Press, 1989.

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Knight, J. B. Education, productivity, and inequality: The East African natural experiment. New York: Published for the World Bank, Oxford University Press, 1990.

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Galavotti, Maria Carla, ed. Observation and Experiment in the Natural and Social Sciences. Dordrecht: Kluwer Academic Publishers, 2004. http://dx.doi.org/10.1007/0-306-48123-5.

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Cai, Hongbin. Observational learning: Evidence from a randomized natural field experiment. Cambridge, MA: National Bureau of Economic Research, 2007.

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H, Sabot R., ed. Education, productivity, and inequality: The East African natural experiment. New York: Published for the World Bank, Oxford University Press, 1990.

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Knight, John B. Education, productivity, and inequality: The East African natural experiment. Oxford: Published for the World Bank, Oxford University Press, 1990.

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Carla, Galavotti Maria, ed. Observation and experiment in the natural and social sciences. Dordrecht: Kluwer Academic, 2003.

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1942-, Irving Barrie Leslie, ed. Neighbourhood policing: The natural history of a policing experiment. London: Police Foundation, 1989.

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Book chapters on the topic "Natural experiment"

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Arora, Suchit. "In the Natural Experiment." In International Perspectives on Aging, 121–30. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14403-0_7.

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Grzyb, Tomasz, and Dariusz Dolinski. "A strictly natural experiment." In The Field Study in Social Psychology, 12–19. London: Routledge, 2021. http://dx.doi.org/10.4324/9781003092995-2.

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Ye, Yuguang. "Development of the Experiment Detection Technique." In Natural Gas Hydrates, 19–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31101-7_2.

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Braden, Jeffery P. "Deafness as a Natural Experiment." In Deafness, Deprivation, and IQ, 1–13. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4757-4917-5_1.

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Myers, James. "Chinese as a natural experiment." In Benjamins Current Topics, 155–69. Amsterdam: John Benjamins Publishing Company, 2012. http://dx.doi.org/10.1075/bct.47.09mye.

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Rossiter, Elliot. "From Experimental Natural Philosophy to Natural Religion." In Experiment, Speculation and Religion in Early Modern Philosophy, 184–203. 1 [edition]. | New York : Taylor & Francis, 2019. | Series: Routledge studies in seventeenth-century philosophy ; 18: Routledge, 2019. http://dx.doi.org/10.4324/9780429022463-9.

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Braden, Jeffery P. "Deafness as a Natural Experiment-Revisited." In Deafness, Deprivation, and IQ, 15–63. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4757-4917-5_2.

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Heelan, Patrick A. "The New Relevance of Experiment: A Postmodern Problem." In Phenomenology of Natural Science, 197–213. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2622-9_10.

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Retallack, Gregory J. "A long-term natural experiment in pedogenesis." In Soils of the Past, 291–94. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-7902-7_14.

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Strzalkowski, Tomek, Sarah Taylor, Samira Shaikh, Ben-Ami Lipetz, Hilda Hardy, Nick Webb, Tony Cresswell, et al. "COLLANE: An Experiment in Computer-Mediated Tacit Collaboration." In Aspects of Natural Language Processing, 411–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04735-0_17.

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Conference papers on the topic "Natural experiment"

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Kalugina, A. D., and D. A. Zedgenizov. "Raman spectroscopy of coesite inclusions in natural diamonds." In 4th International Seminar “High-Pressure Mineralogy: Theory and Experiment”. KDU, Moscow, 2022. http://dx.doi.org/10.31453/kdu.ru.978-5-7913-1215-0-2022-22-23.

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Debevc, Martin, and Ivo Kljenak. "Simulation of Natural Convection Experiment Performed in MISTRA Containment Experimental Facility." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-31098.

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An experiment on atmosphere mixing in a nuclear power plant containment experimental facility, which involved natural convection, was simulated with a CFD computer code. The experiment was performed in the MISTRA cylindrical vessel at CEA in Saclay (France). It involved gradual heating of structures near the vertical walls to induce buoyant flow and cause mixing of the atmosphere and breaking up of a previously established helium layer in the vessel upper region. The experiment was simulated with the CFD code ANSYS CFX. The simulation results are presented and discussed.
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Li, Jiahao, Yao Liu, Yang Zhou, Youzhe Wang, Zhanling Guo, and Bin Shen. "Simulation and Experiment Analysis of Driveshaft." In ASME 2023 18th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/msec2023-106319.

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Abstract Driveshaft is a small spring coil (usually less than 1mm in diameter), made by several stainless-steel wire filaments, which transmits force and motion to the body through existing micro channels (such as arteries, veins, and gastrointestinal tract). The performance of the driveshaft determines the efficiency, stability, accuracy of force and motion transitions, the ability to pass through tortuous microchannels, and the damage to healthy tissues. In order to determine the influence of fabrication parameters (filament, wire diameter, outer diameter) on the mechanical properties (such as bending stiffness and natural frequency) of the driveshaft, a simulation was established in ABAQUS to calculate the deformation displacement under 0.0098N and first order natural frequency. The bending stiffness is calculated further. The results show that the bending stiffness and the first natural frequency of the driveshaft increase with the increase of the filament number and wire diameter. When the outer diameter of driveshaft increases, the bending stiffness increases, while the first order natural frequency decreases. In order to verify the simulation model, deformation displacement was measured in experiments. This study provides an idea for the design and selection of the driveshaft in the intervention process.
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Maiti, Ananda, Andrew D. Maxwell, and Alexander A. Kist. "Using marker based augmented reality and natural user interface for interactive remote experiments." In 2017 4th Experiment@International Conference (exp.at'17). IEEE, 2017. http://dx.doi.org/10.1109/expat.2017.7984396.

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Iskrina, A. V., A. V. Bobrov, A. V. Spivak, A. V. Kuzmin, S. Chariton, T. Fedotenko, and L. S. Dubrovinsky. "Post-spinel phases in the Earth’s mantle: Natural and experimental data." In 4th International Seminar “High-Pressure Mineralogy: Theory and Experiment”. KDU, Moscow, 2022. http://dx.doi.org/10.31453/kdu.ru.978-5-7913-1215-0-2022-20-21.

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"COMPARING NEW MODELS OF SOCIAL HOUSING: A NATURAL EXPERIMENT." In 15th Annual European Real Estate Society Conference: ERES Conference 2008. ERES, 2008. http://dx.doi.org/10.15396/eres2008_151.

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Zhou, Tao, Xiaolu Fang, Liang Liu, Yaoxin Wang, and Zejun Xiao. "Research on Natural Circulation Flow Oscillation Experiment in Narrow Rectangular Channel." In 2016 24th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icone24-60679.

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A narrow rectangular natural circulation experimental system is used to research flow pulsation occurred during the experiment. During the experiment, the flow pulsation phenomenon is found in narrow rectangular channels. When compared with density wave instability, it is found that the flow pulsation has certain characteristics of density wave instability, but at the same time, there will be a transient low flow phenomenon, which is a unique flow oscillation phenomenon in the narrow rectangular channel. The mechanism of flow oscillation phenomenon is analyzed, on this basis, a forecast equation of mass velocity is put forward. Forecast equation of mass velocity is used to calculate the natural circulation mass flow rate. Calculation results are in good agreement with the experimental results, which proves that the forecast equation of mass velocity is correct, provides control and prevention theory basis for natural circulation flow instability in narrow rectangular channel.
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Rua, Xiaogang, and Lizhen Dai. "Skinner-rat experiment based on autonomous operant conditioning automata." In 2010 Sixth International Conference on Natural Computation (ICNC). IEEE, 2010. http://dx.doi.org/10.1109/icnc.2010.5584702.

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Dong, Honghui, Limin Jia, Xiaoliang Sun, Yong Qin, and Chenxi Li. "An Experiment Study on Level of Service for the Regional Road Traffic." In 2009 Fifth International Conference on Natural Computation. IEEE, 2009. http://dx.doi.org/10.1109/icnc.2009.715.

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Shi, Leitai, Guanghui Su, Tan Bing, Ronghua Chen, Wenxi Tian, Suizheng Qiu, and Junmei Wu. "Experimental Study on Natural Circulation in a Lead Bismuth Eutectic Loop." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66261.

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In order to investigate the thermal-hydraulic characteristics of LBE in Accelerator Driven System (ADS), the Natural Circulation Capability Loop (NCCL) test facility was designed and constructed at Xi’An Jiaotong university in 2015. NCCL is a middle-scale experimental loop designed for investigating the natural circulation capacity, gas-lift pump enhancing circulation capacity and heat-transfer characteristic of LBE. For the natural circulation capability experiment, the loop is filled with argon gas at 0.2 MPa before filling LBE from store tank. The maximum temperature of LBE is 500 C°, while the normal operation temperature was maintained at 400 C°. In this paper, the LBE natural circulation characteristics were investigated with experiments in NCCL test facility. The study includes measurements on start-up of natural circulation and capability of natural circulation. Significant natural convection flow was observed in the experiments. It was found that the natural circulation was quickly established and stabilized due to LBE high thermal expansion property. It took only a few minutes to have a stable natural circulation prevailing from cold conditions. At the same time, the temperature difference between heating section and cooling section increase quickly and reach to the maximum value. And in the range of 10 minutes, a steady circulation can be performed. The natural circulation flowrate depends on the loop resistance, and the temperature difference between the hot leg and the cold leg, as determined by the power level and the heat sink capacity. The experiments show that the maximum flowrate for the natural circulation is 0∼0.81 kg/s.
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Reports on the topic "Natural experiment"

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Lacetera, Nicola, Mario Macis, and Robert Slonim. Rewarding Altruism? A Natural Field Experiment. Cambridge, MA: National Bureau of Economic Research, December 2011. http://dx.doi.org/10.3386/w17636.

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Wood, A. M. The Arabian Sea: A Natural Experiment in Phytoplankton Biogeography. Fort Belvoir, VA: Defense Technical Information Center, September 1997. http://dx.doi.org/10.21236/ada627903.

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Cai, Hongbin, Yuyu Chen, and Hanming Fang. Observational Learning: Evidence from a Randomized Natural Field Experiment. Cambridge, MA: National Bureau of Economic Research, October 2007. http://dx.doi.org/10.3386/w13516.

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Bettinger, Eric, and Robert Slonim. Using Experimental Economics to Measure the Effects of a Natural Educational Experiment on Altruism. Cambridge, MA: National Bureau of Economic Research, October 2005. http://dx.doi.org/10.3386/w11725.

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Zimring, Assaf. Testing the Heckscher-Ohlin-Vanek Theory with a Natural Experiment. W.E. Upjohn Institute, November 2015. http://dx.doi.org/10.17848/wp15-243.

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Chari, Anusha, and Peter Blair Henry. Risk Sharing and Asset Prices: Evidence From a Natural Experiment. Cambridge, MA: National Bureau of Economic Research, June 2002. http://dx.doi.org/10.3386/w8988.

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Chou, Shin-Yi, Jin-Tan Liu, and James Hammitt. Health Insurance and Households' Precautionary Behaviors - An Unusual Natural Experiment. Cambridge, MA: National Bureau of Economic Research, December 2002. http://dx.doi.org/10.3386/w9394.

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Chen, Yong, Bryan Kelly, and Wei Wu. Sophisticated Investors and Market Efficiency: Evidence from a Natural Experiment. Cambridge, MA: National Bureau of Economic Research, April 2018. http://dx.doi.org/10.3386/w24552.

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Gillingham, Kenneth, Sébastien Houde, and Arthur van Benthem. Consumer Myopia in Vehicle Purchases: Evidence from a Natural Experiment. Cambridge, MA: National Bureau of Economic Research, May 2019. http://dx.doi.org/10.3386/w25845.

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Meyer, Bruce, W. Kip Viscusi, and David Durbin. Workers' Compensation and Injury Duration: Evidence from a Natural Experiment. Cambridge, MA: National Bureau of Economic Research, October 1990. http://dx.doi.org/10.3386/w3494.

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