Academic literature on the topic 'Variable stars'

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Journal articles on the topic "Variable stars"

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Szeidl, B., M. Breger, A. N. Cox, et al. "27. Variable Stars (Etoiles Variables)." Transactions of the International Astronomical Union 20, no. 1 (1988): 257–92. http://dx.doi.org/10.1017/s0251107x00007197.

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The field of variable star research has become so broad and the amount of research to be reported on has grown so rapidly that it is a vain hope that a report of this kind, in a very limited space, could cover the whole field of research and could mention all the papers that have been published in the last three years. It is only hoped that this report presents the significant results achieved in the field of the most important aspects of variable star research. Some important subjects (e.g. cataclysmic variables) relevant to the variable star research are reviewed in the reports of other comm
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Percy, J. R., L. Szabados, K. Oláh, et al. "27. Variable Stars (Etoiles Variables)." Transactions of the International Astronomical Union 22, no. 1 (1994): 243–76. http://dx.doi.org/10.1017/s0251107x00008051.

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Jerzykiewicz, M., L. A. Baiona, E. F. Guinan, et al. "Division V: Variable Stars: (Etoiles Variables)." Transactions of the International Astronomical Union 24, no. 1 (2000): 251–54. http://dx.doi.org/10.1017/s0251107x0000314x.

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This report covers the period July 1, 1996 (the closing date of the reports in the IAU Trans. 23A) through August 31, 1999. Since the reports of Commissions 27 and 42 that follow highlight the research made in the triennium, we limit ourselves here to organizational activities of the Division. The first three sections are devoted to the General Catalogue of Variable Stars (GCVS), the Information Bulletin on Variable Stars (IBVS), and the Archives of Unpublished Observations of Variable Stars, the important projects that serve us all. I am indebted to the authors, listed in the sections heading
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Guinan, Edward F., S. Balona, J. Christensen-Dalgaard, et al. "Division V: Variable Stars: (Etoiles Variables)." Transactions of the International Astronomical Union 25, no. 1 (2002): 265–67. http://dx.doi.org/10.1017/s0251107x00001528.

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Christensen-Dalsgaard, Jørgen, Conny Aerts, Carla Cacciari, et al. "Commission 27: Variable Stars: (Etoiles Variables)." Transactions of the International Astronomical Union 25, no. 1 (2002): 271–76. http://dx.doi.org/10.1017/s0251107x00001553.

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Percyy, John R. "Variable stars." Physics Teacher 31, no. 9 (1993): 541–43. http://dx.doi.org/10.1119/1.2343874.

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Kurtz, D. W., J. Christensen-Dalsgaard, C. Cacciari, et al. "Commission 27: Variable Stars: (Les Etoiles Variables)." Transactions of the International Astronomical Union 24, no. 1 (2000): 255–58. http://dx.doi.org/10.1017/s0251107x00003151.

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For Commission 27 these triennial reports have traditionally been very compact literature reviews of all the fields relevant to our commission. For several triennia we have been discussing the relevance of them, and asking just who their readership is. It seems that only a few people read them, and fewer use them as introductions to the subject – supposedly one of their prime purposes. The major beneficiaries have been the writers, who have been forced to do three-year reviews of their subjects. The IAU EC gave us the option this triennium of a shorter, four-page report to which the majority o
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Christensen-Dalsgaard, Jørgen. "Commission 27: Variable Stars (Les Étoiles Variables)." Transactions of the International Astronomical Union 25, no. 2 (2007): 149–50. http://dx.doi.org/10.1017/s0251107x00026705.

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Warner, Brian. "Cataclysmic Variable Stars." Highlights of Astronomy 11, no. 1 (1998): 16–27. http://dx.doi.org/10.1017/s1539299600019924.

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The evolution of single stars on and away from the main sequence is well understood. A degenerate core is formed in a star as the star leaves the main sequence and expands to a giant with a radius typically 50 - 500 Ro . Observationally it is known that most stars are members of binary systems, and among these many have orbital periods less than 100 y. It can happen, therefore, that the expanding envelope of the primary of a binary system can reach to the secondary. As this happens, the primary fills its Roche tidal lobe and transfers matter to the secondary; if the primary has a radiative env
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Baker, N., B. Szeidl, M. Breger, et al. "27. Variable Stars." Transactions of the International Astronomical Union 19, no. 1 (1985): 277–311. http://dx.doi.org/10.1017/s0251107x00006398.

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The field of variable-star research is so broad that no report of this nature could possibly mention all the papers that have appeared in the last three years. It is hoped, however, that the reviews below include the most important work and identify the most significant trends. This report comprises ten sections on as many different research topics, each written by a different member of Commission 27. In addition there are (in Section 12) three short reports about ongoing activities of the commission. The commission president is very grateful to the authors of the individual contributions who
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Dissertations / Theses on the topic "Variable stars"

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Davey, Stephen. "Irradiation of the secondary star in cataclysmic variable stars." Thesis, University of Sussex, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386388.

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Kube, Jens. "Indirect imaging of cataclysmic variable stars." Doctoral thesis, [S.l.] : [s.n.], 2002. http://webdoc.sub.gwdg.de/diss/2002/kube/kube.pdf.

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Thoroughgood, Timothy David. "The masses of cataclysmic variable stars." Thesis, University of Sheffield, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419603.

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Marsh, T. R. "Emission lines in cataclysmic variable stars." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372891.

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Sahman, David. "The evolution of cataclysmic variable stars." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/21700/.

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Cataclysmic variables (CVs) are binary star systems comprising a white dwarf which is accreting material from a Roche-lobe filling companion, usually a late-main sequence or evolved star. The accreted material accumulates on the surface of the white dwarf and ultimately leads to a thermonuclear runaway explosion, called a nova eruption. There are ∼ 400 recorded novae and some have shown more than one eruption. These systems are the recurrent novae, and they are one of the leading progenitor candidates of Type Ia Supernovae. In this thesis, I describe how I used high speed spectroscopy to deter
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Wynn, Graham Anthony. "Accretion processes in cataclysmic variable stars." Thesis, University of Leicester, 1993. http://hdl.handle.net/2381/35833.

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Pretorius, Magaretha L. "Rapid oscillations in cataclysmic variable stars." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/6103.

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Includes bibliographical references (p. 129-146).<br>Rapid quasi-coherent oscillations were detected in the optical light curves of 24 cataclysmic variable stars (CVS). In 12 of these systems (TU Men, WW Cet, HX Peg, BP CrA, BR Lup, HP Nor, AG Hya, TW Vir, PU CMa, V426 Ooph, V1193 Ori, and CR Boo) for the first time. The results contribute to the observational record of the phenomenology of dwarf nova oscillations (DNOs), quasi-periodic oscillations (QPOs), and longer period dwarf nova oscillations (lpDNOs), strengthen the correlation, valid over nearly six orders of magnitude in frequency, be
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Ireland, Michael. "Optical interferometry and Mira variable stars /." Connect to full text, 2005. http://hdl.handle.net/2123/721.

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Ireland, Michael James. "Optical Interferometry and Mira Variable Stars." Thesis, The University of Sydney, 2005. http://hdl.handle.net/2123/721.

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This thesis describes the development of a red tip/tilt and fringe detection system at the Sydney University Stellar Interferometer (SUSI), modelling the instrumental performance and effects of seeing at SUSI, making observations of Mira variable stars and finally modelling the atmospheres of Mira variables with physically self-consistent models. The new SUSI tip/tilt system is based around a CCD detector and has been successfully used to both track the majority of tip/tilt power in median seeing at an R magnitude of 4.5, and to provide seeing measures for post processing. The new fringe-det
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Ireland, Michael James. "Optical Interferometry and Mira Variable Stars." University of Sydney. Physics, 2005. http://hdl.handle.net/2123/721.

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This thesis describes the development of a red tip/tilt and fringe detection system at the Sydney University Stellar Interferometer (SUSI), modelling the instrumental performance and effects of seeing at SUSI, making observations of Mira variable stars and finally modelling the atmospheres of Mira variables with physically self-consistent models. The new SUSI tip/tilt system is based around a CCD detector and has been successfully used to both track the majority of tip/tilt power in median seeing at an R magnitude of 4.5, and to provide seeing measures for post processing. The new fringe-det
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Books on the topic "Variable stars"

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Michel, Petit. Variable stars. Wiley, 1987.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8.

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Good, Gerry A. Observing Variable Stars. Springer London, 2003. http://dx.doi.org/10.1007/978-1-4471-0055-3.

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Warner, Brian. Cataclysmic variable stars. Cambridge University Press, 1995.

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Percy, John R. Understanding variable stars. Cambridge University Press, 2007.

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Colloquium, International Astronomical Union. Physics of luminous blue variables: Proceedings of the 113th Colloquium of the International Astronomical Union, held at Val Morin, Quebec Province, Canada, August 15-18, 1988. Kluwer Academic, 1989.

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Sovet, Akademiya Nauk SSSR Astronomicheskii. General catalogue of variable stars. 4th ed. Nauka, 1985.

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Griffiths, Martin. Observer's Guide to Variable Stars. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00904-5.

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Broens, Eric. Variable stars: Visual light curves. Vereniging voor Sterrenkunde, 2000.

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Kolman, Roger S. Observe and understand variable stars. Astronomical League, 1999.

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Book chapters on the topic "Variable stars"

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McNally, Derek. "Variable Stars (Etoiles Variables)." In Reports on Astronomy. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3364-7_19.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "Eclipsing Stars." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_4.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "General Introduction." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_1.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "Pulsating Variables." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_2.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "Eruptive Variables." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_3.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "Supplement to the Classification." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_5.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "The Discovery of Variable Stars." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_6.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "The Significance of Variable Stars for Research on the Structure of the Galaxy and Stellar Evolution." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_7.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "Observational Methods and Organizations." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_8.

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Hoffmeister, Cuno, Gerold Richter, and Wolfgang Wenzel. "Literature." In Variable Stars. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82269-8_9.

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Conference papers on the topic "Variable stars"

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Sarkar, Arnab, Hongwei Ge, Lev Yungelson, and Christopher A. Tout. "One model to rule them all: magnetic braking from CVs to low-mass stars." In The Golden Age of Cataclysmic Variables and Related Objects - VI. Sissa Medialab, 2024. http://dx.doi.org/10.22323/1.460.0016.

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Zhang, jiabao, yan Li, he Liu, chongxin Zhong, and jiaxin Liang. "A fast star map simulation method based on genetic algorithm optimization of variable star point number." In Fourth International Conference on Computer Technology, Information Engineering, and Electron Materials (CTIEEM 2024), edited by Massimo Ficco and Yixian Yang. SPIE, 2025. https://doi.org/10.1117/12.3058489.

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Fritzius, Robert S. "A Ritzian interpretation of variable stars." In The fifth huntsville gamma-ray burst symposium. AIP, 2000. http://dx.doi.org/10.1063/1.1361608.

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Córdova, France A., Edwin F. Ladd, and Keith O. Mason. "The winds in cataclysmic variable stars." In AIP Conference Proceedings Volume 144. AIP, 1986. http://dx.doi.org/10.1063/1.35661.

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Varadi, Mihaly, Laurent Eyer, Stefan Jordan, et al. "Detecting Short Period Variable Stars with Gaia." In STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP, 2009. http://dx.doi.org/10.1063/1.3246507.

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Joner, Michael D., and Eric G. Hintz. "Interactive online archive for short-period variable stars." In Astronomical Telescopes & Instrumentation, edited by Peter J. Quinn. SPIE, 1998. http://dx.doi.org/10.1117/12.316503.

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Greco, Claudia, Nami Mowlavi, Laurent Eyer, et al. "Searching for Variable Stars in Galactic Open Clusters." In STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP, 2009. http://dx.doi.org/10.1063/1.3246502.

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Soszyński, Igor, Joyce Ann Guzik, and Paul A. Bradley. "The OGLE-III Catalog of Variable Stars 100 k Pulsating Stars in the LMC." In STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP, 2009. http://dx.doi.org/10.1063/1.3246499.

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Kwiecinska, K., M. Biskup, K. Malek, et al. "Variable stars study in "Pi of the Sky" project." In SPIE Proceedings, edited by Ryszard S. Romaniuk. SPIE, 2006. http://dx.doi.org/10.1117/12.675019.

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Sarro, Luis Manuel, Albert Domingo, J. Miguel Mas-Hesse, Enrique Solano, and Raúl P. Gutierrez. "Learning from optically variable stars: the OMC scientific case." In ADA-III - Astronomical Data Analysis III Conference. BCS Learning & Development, 2004. http://dx.doi.org/10.14236/ewic/ada-iii2004.4.

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Reports on the topic "Variable stars"

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Alcock, C., D. Alves, T. Axelrod, et al. The MACHO project: Microlensing and variable stars. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/490163.

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Purdue, Patricia. MACHO project LMC variable star inventory: Aperiodic blue variables. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/576759.

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Purdue, P. The MACHO Project LMC variable star inventory: Aperiodic blue variables. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/195743.

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Sherfy, Robert, and John D. Tanner. Total Environmental Control Systems, Soft-Start and Soft-Start Variable Capacity Air Conditioners. Defense Technical Information Center, 1987. http://dx.doi.org/10.21236/ada210719.

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Whitaker, Stephen. Rocky intertidal community monitoring at Channel Islands National Park: 2018–19 annual report. National Park Service, 2023. http://dx.doi.org/10.36967/2299674.

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Channel Islands National Park includes the five northern islands off the coast of southern California (San Miguel, Santa Rosa, Santa Cruz, Anacapa, and Santa Barbara Islands) and the surrounding waters out one nautical mile. There are approximately 176 miles of coastline around the islands, about 80% of which is composed of rock. The diversity and undisturbed nature of the tidepools of this rocky coastline were recognized as special features of the islands in the enabling legislation. To conserve these communities unimpaired for future generations, the National Park Service has been monitoring
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Glancy, David, Robert Kurtzman, and Lara P. Loewenstein. On commercial construction activity's long and variable lags. Federal Reserve Bank of Cleveland, 2024. http://dx.doi.org/10.26509/frbc-wp-202414.

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We use microdata on the phases of commercial construction projects to document three facts regarding time-to-plan lags: (1) plan times are long - about 1.5 years - and highly variable, (2) roughly 40 percent of projects are abandoned in planning, and (3) property price appreciation reduces the likelihood of abandonment. We construct a model with endogenous planning starts and abandonment that matches these facts. The model has the testable implication that supply is more elastic when there are more "shovel ready" projects available to advance to construction. We use local projections to valida
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Thomas, Tucker, and Cowell. PR-283-10204-R01 Prevent Variable Guide Vane Lock-up - Solar Gas Turbines with Intermittent Operation. Pipeline Research Council International, Inc. (PRCI), 2016. http://dx.doi.org/10.55274/r0010856.

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A study was completed to demonstrate that a guide vane field refurbishment process and improved maintenance practices are effective at preventing corrosion and lock-up of the guide vanes of Solar�s Taurus 60-7802S gas turbine operated in intermittent duty. A Taurus 60 engine located at Dominion�s Crayne compressor station was refurbished and operated over a five year period using maintenance practices to slow the build-up of corrosion. The visible condition of the VGV assembly on this Test Unit was monitored and the guide vane actuator force measured to assess if corrosion build-up was occurri
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Villela, Luiz Arruda, and Vicente Fretes Cibils. The Fiscal Impact of the International Financial Crisis on Latin American and Caribbean Economies. Inter-American Development Bank, 2008. http://dx.doi.org/10.18235/0009070.

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The main objective of this Technical Note is to provide a simple framework to determine the short-term fiscal impact of the international financial crisis on Latin American and Caribbean (LAC) countries, i.e., fiscal financing needs/gap by country (or fiscal liquidity impact). In addition, it will provide a framework to evaluate fiscal sustainability by country (or fiscal solvency impact). In both cases, and depending of the particular country under analysis, transmission mechanisms (variables) will be identified, and sensitivity analysis will be carried out to determine the robustness of thei
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Lieth, J. Heiner, Michael Raviv, and David W. Burger. Effects of root zone temperature, oxygen concentration, and moisture content on actual vs. potential growth of greenhouse crops. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7586547.bard.

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Soilless crop production in protected cultivation requires optimization of many environmental and plant variables. Variables of the root zone (rhizosphere) have always been difficult to characterize but have been studied extensively. In soilless production the opportunity exists to optimize these variables in relation to crop production. The project objectives were to model the relationship between biomass production and the rhizosphere variables: temperature, dissolved oxygen concentration and water availability by characterizing potential growth and how this translates to actual growth. As p
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Orbeta, Aniceto Jr, Kris Ann Melad, and Maropsil Potestad. Correlates of Test Performance of 15-year-old Students in the Philippines: Evidence from PISA. Philippine Institute for Development Studies, 2020. https://doi.org/10.62986/dp2020.57.

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To provide evidence on the drivers of the quality of education in the country, this study focuses on the correlates of test performance of 15-year-old students in the Philippines. It aims to quantitatively measure the roles of individual, family, and school characteristics in test performance. It uses the 2018 Program for International Student Assessment (PISA) which include a rich set of student, family, and school characteristics. In addition to the average relationship between the variables provided by ordinary least squares, it also provides an analysis for high and low performing students
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