Log in

Relevant bibliographies by topics / Equivalent fractions

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Equivalent fractions'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Equivalent fractions.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Equivalent fractions"

1

Olson, Melfried. "Take Time for Action: Exploring Equivalent Fractions with the Graphing Calculator." Mathematics Teaching in the Middle School 14, no. 6 (2009): 326–29. http://dx.doi.org/10.5951/mtms.14.6.0326.

Full text

Abstract:

When students begin learning about fractions, it is important for them to understand the relationships involved. The study of fraction concepts begins in the primary grades, and work with relational understanding starts in grades 3 through 5. In its Number and Operations Standards for grades 3-5, the NCTM (2000) states that students should “recognize and generate equivalent forms of commonly used fractions, decimals, and percents” (p. 148) and “investigate the relationship between fractions and decimals, focusing on equivalence. Through a variety of activities, they should understand that a fr

APA, Harvard, Vancouver, ISO, and other styles

2

Fletcher, W. K., M. Church, and J. Wolcott. "Fluvial-transport equivalence of heavy minerals in the sand size range." Canadian Journal of Earth Sciences 29, no. 9 (1992): 2017–21. http://dx.doi.org/10.1139/e92-158.

Full text

Abstract:

Sediments caught in two pit traps installed in Harris Creek, a small gravel-bed stream in southern British Columbia, were sieved to give five size fractions between 53 and 425 μm, which were then separated into their magnetic and nonmagnetic components. Estimates of transport-equivalent sizes of the higher density magnetic fractions were obtained by determining the grain sizes of magnetic and nonmagnetic particles that enter the traps at proportionally similar rates for a wide range of discharge conditions. The estimates of transport-equivalent sizes are compared with settling-velocity equival

APA, Harvard, Vancouver, ISO, and other styles

3

Dominguez, Higinio. "Fraction detectives: bilingual students investigate the hidden identities of equivalent fractions." ZDM – Mathematics Education 53, no. 2 (2021): 393–404. http://dx.doi.org/10.1007/s11858-020-01218-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Pedersen, Pernille Ladegaard, and Mette Bjerre. "Two conceptions of fraction equivalence." Educational Studies in Mathematics 107, no. 1 (2021): 135–57. http://dx.doi.org/10.1007/s10649-021-10030-7.

Full text

Abstract:

AbstractIn this study, we present a mathematical analysis distinguishing two conceptions of equivalence: proportional equivalence and unit equivalence. These two conceptions have distinct meanings in relation to equivalent fractions: one is grounded in proportionality, while the other is grounded in equal wholes. We argue that (a) the distinction of equivalence gives a unified framework of equal fractions that has not previously been described in the literature; (b) a conceptual understanding of both fraction equivalences is integral to understanding rational numbers; and (c) knowledge of both

APA, Harvard, Vancouver, ISO, and other styles

5

Ortiz, Enrique. "The Roll Out Fractions Game: Comparing Fractions." Teaching Children Mathematics 13, no. 1 (2006): 56–62. http://dx.doi.org/10.5951/tcm.13.1.0056.

Full text

Abstract:

This game provides for students' development of the use of models, benchmarks, and equivalent forms to judge the size of fractions in a motivational and flexible way. Teachers will learn to use this game to present fractions in an innovative way.

APA, Harvard, Vancouver, ISO, and other styles

6

Kamii, Constance, and Faye B. Clark. "Equivalent fractions: Their difficulty and educational implications." Journal of Mathematical Behavior 14, no. 4 (1995): 365–78. http://dx.doi.org/10.1016/0732-3123(95)90035-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Kim, Y. H., H. C. Kim, Yeon Gil Jung, J. H. Lee, B. H. Chi, and S. H. Ryu. "Formation of Ferrite with Cr Equivalents and Solidification Rates in Mod. (9-12)Cr-1Mo Steels." Solid State Phenomena 124-126 (June 2007): 1497–500. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.1497.

Full text

Abstract:

The influence of solidification rates and Cr equivalents on the formation of the ferrite was studied by directional solidification in mod. (9-12)Cr-1Mo steels. It was found that the volume fraction of ferrite increased as increasing Cr equivalent and solidification rate. The volume fraction of the ferrite showed much higher at low solidification rates with the planar or cellular interface than that at high solidification rates with the dendritic interface. The volume fraction of ferrite in solidification microstructure showed much higher than that in extruded and heat-treated alloys. It depend

APA, Harvard, Vancouver, ISO, and other styles

8

Fitzsimmons, Charles J., Clarissa A. Thompson, and Pooja G. Sidney. "Do adults treat equivalent fractions equally? Adults’ strategies and errors during fraction reasoning." Journal of Experimental Psychology: Learning, Memory, and Cognition 46, no. 11 (2020): 2049–74. http://dx.doi.org/10.1037/xlm0000839.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Oppenheimer, Lauren, and Robert P. Hunting. "Reflections on Practice: Relating Fractions and Decimals: Listening to Students Talk." Mathematics Teaching in the Middle School 4, no. 5 (1999): 318–21. http://dx.doi.org/10.5951/mtms.4.5.0318.

Full text

Abstract:

Despite the great amount of time that middle-grades teachers devote to teaching fractions and decimals, converting between these two representations continues to be a difficult task for students. According to the results of the sixth National Assessment of Educational Progress (NAEP) conducted in 1992, although 90 percent of eighth-grade students correctly paired a simple fraction with its pictorial representation, only 63 percent of students successfully shaded a fractional portion of a given rectangular region using equivalent fractions. Likewise, 92 percent correctly identified 14.9 seconds

APA, Harvard, Vancouver, ISO, and other styles

10

Putra, Z. H., and C. Winsløw. "Teachers’ collective knowledge: the case of equivalent fractions." Journal of Physics: Conference Series 1088 (September 2018): 012003. http://dx.doi.org/10.1088/1742-6596/1088/1/012003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Equivalent fractions"

1

Fitzsimmons, Charles Joseph. "Do adults treat equivalent fractions equally? Adults' strategies and errors during fraction reasoning." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1565611618844761.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Lewis, Raynold M. Otto Albert D. "The knowledge of equivalent fractions that children in grades 1, 2, and 3 bring to formal instruction." Normal, Ill. Illinois State University, 1996. http://wwwlib.umi.com/cr/ilstu/fullcit?p9633409.

Full text

Abstract:

Thesis (Ph. D.)--Illinois State University, 1996.<br>Title from title page screen, viewed May 24, 2006. Dissertation Committee: Albert D. Otto (chair), Barbara S. Heyl, Cheryl A. Lubinski, Nancy K. Mack, Jane O. Swafford, Carol A. Thornton. Includes bibliographical references (leaves 188-198) and abstract. Also available in print.

APA, Harvard, Vancouver, ISO, and other styles

3

Woodard, Leslie Dorise. "Middle grades in-service teachers pedagogical content knowledge of student internal representation of equivalent fractions and algebraic expressions." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3153.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Haji, Harun Hajah Zurina. "Evaluating the teaching and learning of fractions through modelling in Brunei : measurement and semiotic analyses." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/evaluating-the-teaching-and-learning-of-fractions-through-modelling-in-brunei-measurement-and-semiotic-analyses(b03b0a49-80a9-4ba0-a43c-d7201b180158).html.

Full text

Abstract:

This thesis is submitted to the University of Manchester for the degree of Doctor of Philosophy (PhD). This study developed an experimental small group teaching method in the Realistic Mathematics Education tradition for teaching fractions using models and contexts to year 7 children in Brunei (N=89) whose effectiveness was evaluated using a treatment-control design: the E1 group was given the experimental lessons, the E2 group who was given “normal” lessons taught by the experimenter, and a whole class (E3) group which acted as the control group. The experimental teaching was video recorded a

APA, Harvard, Vancouver, ISO, and other styles

5

Santos, Romilson Gomes dos. "The Fedathi Sequence in math education educator: reflections on the geometry of basic education and fractions equivalent with the software GeoGebra." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14609.

Full text

Abstract:

Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>This study aimed at analyzing the contributions of the teaching methodology Fedathi Sequence (SF) by using the GeoGebra software, applied in Basic Geometry contents and equivalent fractions in the initial pedagogue training in order to provide favorable conditions for the development of education and learning of mathematics, in a systematic and organized manner. The problematic of the research emerged surrounding the mathematical knowledge of the students in the Pedagogy Course of the Faculty of Education FACED / UFC, research lo

APA, Harvard, Vancouver, ISO, and other styles

6

Naiser, Emilie Ann. "Understanding fractional equivalence and the differentiated effects on operations with fractions." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1469.

Full text

Abstract:

This study compared two representations for teaching fraction equivalence. It traced the implications of both representations on the students comprehension of fractions as well as their ability to perform operations with fractions. The participants in the study included 65 sixth grade students in three extant classrooms. Two classes were instructed using the textbook representation while the third class received instruction using a representation presented by Van de Walle and recommended by the National Council for Teaching Mathematics. Data were collected from pre-tests, post-tests, student

APA, Harvard, Vancouver, ISO, and other styles

7

Clark, James Byron. "Fractional factorial designs-equivalence and augmenting /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487949836206266.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Westenskow, Arla. "Equivalent Fraction Learning Trajectories for Students with Mathematical Learning Difficulties When Using Manipulatives." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1368.

Full text

Abstract:

This study identified variations in the learning trajectories of Tier II students when learning equivalent fraction concepts using physical and virtual manipulatives. The study compared three interventions: physical manipulatives, virtual manipulatives, and a combination of physical and virtual manipulatives. The research used a sequential explanatory mixed-method approach to collect and analyze data and used two types of learning trajectories to compare and synthesize the results. For this study, 43 Tier II fifthgrade students participated in 10 sessions of equivalent fraction intervention. P

APA, Harvard, Vancouver, ISO, and other styles

9

Westenskow, Arla. "Comparing the Use of Virtual Manipulatives and Physical Manipulatives in Equivalent Fraction Intervention Instruction." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-83198.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Scanlon, Regina M. "Improving Individualized Educational Program (IEP) mathematics learning goals for conceptual understanding of order and equivalence of fractions." Thesis, University of Delaware, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3594968.

Full text

Abstract:

<p> The purpose of this Executive Position Paper project was to develop resources for improving Individual Educational Program (IEP) mathematics learning goals for conceptual understanding of fractions for middle school special education students. The investigation surveyed how IEP mathematics learning goals are currently determined and proposed a new approach. It demonstrated how the approach would work through a pilot project in which two tools were developed: (1) a list of learning goals for goal writers to use as a reference when writing mathematics learning goals for middle school special

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Equivalent fractions"

1

Koli︠a︡da, S. F. Dynamics and numbers: A special program, June 1-July 31, 2014, Max Planck Institute for Mathematics, Bonn, Germany : international conference, July 21-25, 2014, Max Planck Institute for Mathematics, Bonn, Germany. Edited by Max-Planck-Institut für Mathematik. American Mathematical Society, 2016.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Glenda, Lappan, ed. Similarity and equivalent fractions. Addison-Wesley Pub. Co., 1986.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Jama, S. Understanding Fractions Visually Colour Workbook: Fractions Posters, Colour-Coded Fractions, Equivalent Fractions, Decimal Fractions and Percentages. Independently Published, 2020.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Jama, S. UNDERSTANDING FRACTIONS VISUALLY in Colour: Colour-Coded Fractions Posters, Fractions, Equivalent Fractions, Decimal Fractions and Percentages. Independently Published, 2020.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Lappan, Glenda, and W. Fitzgerald. Similarity and Equivalent Fractions (Middle Grades Mathematics Project). Dale Seymour Publications, 1987.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ivy Sue needs a house: Building with equivalent fractions. Norwood House Press, 2013.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

Fraction, Decimal, Percent Equivalents Poster. Dale Seymour Publications, 2000.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

Designs in Math: Equivalents Fractions-Decimals/Grades 5-8. Amer Education Pub, 1994.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

Eureka Math, A Story of Units : Grade 4, Module 5: Fraction Equivalence, Ordering and Operations. Jossey-Bass, 2014.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

Wright, A. G. The Photomultiplier Handbook. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.001.0001.

Full text

Abstract:

This handbook is aimed at helping users of PMTs who are faced with the challenge of designing sensitive light detectors for scientific and industrial purposes. The raison d’être for photomultipliers (PMTs) stems from four intrinsic attributes: large detection area, high, and noiseless gain, and wide bandwidth. Detection involves a conversion process from photons to photoelectrons at the photocathode. Photoelectrons are subsequently collected and increased in number by the action of an incorporated electron multiplier. Photon detection, charge multiplication, and many PMT applications are stati

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Equivalent fractions"

1

Leimbach, Judy, Kathy Leimbach, and Mary Lou Johnson. "Equivalent Fraction Review." In Math Extension Units. Routledge, 2021. http://dx.doi.org/10.4324/9781003236481-30.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Fang, Yanping, Xiong Wang, and Christine Lee Kim-Eng. "Representing Instructional Improvement in Lesson Study through Principled Analysis of Research Lessons in Singapore: A Case of Equivalent Fractions." In Theory and Practice of Lesson Study in Mathematics. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-04031-4_19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Gerstein, Miriam, and Dina Yankelewitz. "Determining Fraction Equivalence." In Children’s Reasoning While Building Fraction Ideas. SensePublishers, 2017. http://dx.doi.org/10.1007/978-94-6351-008-0_10.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Lee, Chun-Yi, and Ming-Jang Chen. "Influence of Prior Knowledge and Teaching Approaches Integrating Non-routine Worked Examples and Virtual Manipulatives on the Performance and Attitude of Fifth-Graders in Learning Equivalent Fractions." In International Perspectives on Teaching and Learning Mathematics with Virtual Manipulatives. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32718-1_9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Schweiger, Fritz. "Differentiable equivalence of fractional linear maps." In Institute of Mathematical Statistics Lecture Notes - Monograph Series. Institute of Mathematical Statistics, 2006. http://dx.doi.org/10.1214/lnms/1196285824.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Chen, Yanfeng, and Bo Zhang. "Extension of ESPM to Fractional-Order DC/DC Converters." In Equivalent-Small-Parameter Analysis of DC/DC Switched-Mode Converter. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2574-8_10.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Millman, Richard S., Peter J. Shiue, and Eric Brendan Kahn. "Equivalence Classes with Applications to Clock Arithmetic and Fractions." In Problems and Proofs in Numbers and Algebra. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14427-6_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Janiczek, Tomasz, Dorota Nowak-Woźny, Witold Mielcarek, and Krystyna Prociów. "Equivalent Model of Modified Bismuth Oxides Described by Fractional Derivatives." In Key Engineering Materials. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.676.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Sodini, C. "Equivalence and parametric analysis in linear fractional programming." In Generalized Convexity and Fractional Programming with Economic Applications. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-46709-7_11.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Jakubowska-Ciszek, Agnieszka, and Janusz Walczak. "Frequency Method for Determining the Equivalent Parameters of Fractional-Order Elements L $$_{\beta }$$ C $$_{\alpha }$$." In Lecture Notes in Electrical Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17344-9_19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Equivalent fractions"

1

Tsai, Chih-Hsiao, and Jung-Chuan Yen. "Effect of an Equivalent Fractions Digital Game on the Learning Outcome, Motivation, and Flow Types among Elementary School Students." In 2016 International Conference on Educational Innovation through Technology (EITT). IEEE, 2016. http://dx.doi.org/10.1109/eitt.2016.21.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Rosa, Isamar, Henning Roedel, Michael D. Lepech, and David J. Loftus. "Creation of Statistically Equivalent Periodic Unit Cells for Protein-Bound Soils." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52029.

Full text

Abstract:

In 2010, NASA was directed to develop technologies to reduce the cost and risk of space exploration and send humans beyond the International Space Station. A central challenge to long-duration space missions is a lack of available construction materials in situ. This work focuses on a novel class of composites that can be produced extraterrestrially in situ by desiccating a mixture of soil, water, and protein binder to create a strong, versatile material. To date, experimental tests of mechanical properties have shown significant variability among samples. This paper focuses on the creation of

APA, Harvard, Vancouver, ISO, and other styles

3

Brandes, Horst G. "Permeability of Marine Sediments and Tropical Volcanic Soils." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83543.

Full text

Abstract:

Permeability values for a range of fine-grained deep-sea sediments are presented and evaluated in terms of index properties such as plasticity, grain size and carbonate content. It is found that whereas clay-rich sediments have similar permeabilities to those of equivalent land-based fine-grained soils, the presence of volcanic, carbonate and other non-clay fractions tends to increase permeability somewhat. Volcanic silty-clayey soils from Hawaii have comparable permeability values, although they can be slightly more permeable.

APA, Harvard, Vancouver, ISO, and other styles

4

Kohno, Masamichi, Takashi Nishizono, Yasunori Onaka, Sumitomo Hidaka, Koji Takahashi, and Yasuyuki Takata. "Micro Oscillation Heat Pipe Fabricated on Silicon Wafer." In ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2008. http://dx.doi.org/10.1115/icnmm2008-62082.

Full text

Abstract:

Heat transport characteristics of micro oscillation heat pipe have been investigated. A single winding flow path consists of 28 turns microchannels fabricated on a silicon wafer the size of which was 31mm×27mm. We used heat pipe with non-uniformed cross section. Equivalent diameters of channels were 0.19 and 0.10mm. Test fluid was R141b and liquid fractions were 0, 75, 85%. It was found that steady pulsating flow occurred by increasing the number of turns and the frequency of vibration has an effect on heat transfer performance.

APA, Harvard, Vancouver, ISO, and other styles

5

Hamidi, Youssef K., Sudha Dharmavaram, Levent Aktas, and M. Cengiz Altan. "Effect of Fiber Content on Void Morphology in Resin Transfer Molded E-Glass/Epoxy Composites." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80387.

Full text

Abstract:

Effect of fiber volume fraction on occurrence, morphology, and spatial distribution of microvoids in resin transfer molded E-glass/epoxy composites is investigated. Three disk-shaped center-gated composite parts containing 8, 12, and 16 layers of randomly-oriented, E-glass fiber perform are molded, yielding 13.5, 20.5 and 27.5% fiber volume fractions, respectively. Voids throughout these disk-shaped composites are evaluated by microscopic image analysis of samples obtained along the radius. Each identified void’s equivalent radius, area, and shape are determined at 200x magnification. Number o

APA, Harvard, Vancouver, ISO, and other styles

6

Mathews, Tanya Ann, Alex J.Cortes, Richard Bryant, and Berna Hascakir. "Miscible Flooding for Bitumen Recovery with a Novel Solvent." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206325-ms.

Full text

Abstract:

Abstract Steam injection is an effective heavy oil recovery method, however, poses several environmental concerns. Solvent injection methods are introduced in an attempt to combat these environmental concerns. This paper evaluates the effectiveness of a new solvent (VisRed) in the recovery of a Canadian bitumen and compares its results with toluene. While VisRed is selected due to its high effectiveness as a viscosity reducer even at very low concentrations, toluene is selected due to its high solvent power. Five core flooding experiments were conducted; E1 (Steam flooding), E2 (VisRed floodin

APA, Harvard, Vancouver, ISO, and other styles

7

Maneepan, K., R. A. Shenoi, H. K. Jeong, and J. I. R. Blake. "Multi-Objective Optimisation of Orthogonally Tophat-Stiffened Composite Laminated Plates." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92442.

Full text

Abstract:

This paper deals with the multi-objective optimisation of an orthogonally tophat-stiffened composite laminated plate. The plate is simply supported around all its edges and subjected to a uniform lateral pressure load. Genetic algorithm (GA) technique is employed as the optimisation tool. As objective functions, both structure weight and manufacturing cost, with respect to a set of practical stiffness and strength constraints (maximum stress criterion), are considered. Structural analysis of the plate is performed using a combination of elastic grillage solutions and an equivalent elastic prop

APA, Harvard, Vancouver, ISO, and other styles

8

San Andre´s, Luis. "Rotordynamic Force Coefficients of Bubbly Mixture Annular Pressure Seals." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45264.

Full text

Abstract:

As oil fields deplete, in particular in deep sea reservoirs, pump and compression systems work under more strenuous conditions with gas in liquid and liquid in gas mixtures, mostly inhomogeneous. Off-design operation affects system overall efficiency and reliability, including penalties in leakage and rotordynamic performance of secondary flow components, namely seals. The paper details a bulk-flow model for annular damper seals operating with gas in liquid mixtures. The analysis encompasses all-liquid and all-gas seals, as well as seals lubricated with homogenous (bubbly) mixtures, and predic

APA, Harvard, Vancouver, ISO, and other styles

9

Makarian, Kamran, Sridhar Santhanam, and Zachary N. Wing. "Experimental Characterization of Thermal Shock Resistance of Refractories Reinforced by Silicon-Carbide and Zirconia Particles." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71886.

Full text

Abstract:

Zirconia and Silicon-carbide based castable composites are both known to be reliable, high-temperature refractory materials, capable of withstanding damage caused by thermal shock. There exists a growing body of literature regarding micro-scale as well as macro-scale properties of each aforementioned type. In the present work, we have investigated these refractory castables using different volume fractions of ZrO2 and SiC particles and have made a comparison between their thermal shock responses. Equivalent homogeneous material properties including elastic modulus, crushing strength and modulu

APA, Harvard, Vancouver, ISO, and other styles

10

Tong, Timothy W., Mohsen M. Abou-Ellail, Yuan Li, and Karam R. Beshay. "Computation of Nitrogen Oxides in Radiant Porous Burner Flows." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56229.

Full text

Abstract:

The present paper is concerned with the numerical computation of flow, heat transfer and chemical reactions in porous burners. One of the important features of porous burners is their presumed low levels of nitrogen oxides. In the present work, the computed NOx is compared with similar conventional premixed burners and measured nitrogen oxides in porous burners. In order to accurately compute the nitrogen oxides levels in porous burners, both prompt and thermal NOx mechanisms are included. In the present work, the porous burner species mass fraction source terms are computed from an ‘extended’

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Equivalent fractions"

1

Torczynski, John Robert, Steven Louis Ceccio, and Paul Richard Tortora. The equivalent electrical permittivity of gas-solid mixtures at intermediate solid volume fractions. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/876324.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Niles, John S., and J. M. Pogodzinski. Steps to Supplement Park-and-Ride Public Transit Access with Ride-and-Ride Shuttles. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2021.1950.

Full text

Abstract:

Public transit ridership in California declined in the five years before the pandemic of 2020–21 and dropped significantly further after the pandemic began. A sharp downward step in the level of transit boarding occurred after February 2020, and continues to the date of this report as a result of the public-health guidance on social distancing, expanded work-at-home, and a travel mode shift from public transit to private cars. A critical issue has come to the foreground of public transportation policy, namely, how to increase the quality and geographic reach of transit service to better serve

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!