Relevant bibliographies by topics / Aggregate Shape

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Aggregate Shape'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Aggregate Shape"

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Yun, Jonghyun, Sanggoo Kang, Amin Darabnoush Tehrani, and Suyun Ham. "Image Analysis and Functional Data Clustering for Random Shape Aggregate Models." Mathematics 8, no. 11 (2020): 1903. http://dx.doi.org/10.3390/math8111903.

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This study presents a random shape aggregate model by establishing a functional mixture model for images of aggregate shapes. The mesoscale simulation to consider heterogeneous properties concrete is the highly cost- and time-effective method to predict the mechanical behavior of the concrete. Due to the significance of the design of the mesoscale concrete model, the shape of the aggregate is the most important parameter to obtain a reliable simulation result. We propose image analysis and functional data clustering for random shape aggregate models (IFAM). This novel technique learns the morp
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Zhou, Xiao Qing, and Yong Xia. "Random Aggregate Generation and Mesoscale Modeling of Concrete under High Strain Rate Compression." Applied Mechanics and Materials 71-78 (July 2011): 733–36. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.733.

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In the mesoscale modeling, concrete is assumed consisting of three components, i.e., coarse aggregates, mortar matrix, and the interfacial transition zone (ITZ), each with different material behavior. The shape and the percentage of the coarse aggregate are the key factors in the mesoscale numerical simulation. The present paper investigates the effect of the coarse aggregate shape on the concrete behavior under high strain rate compression. Simplified methods are adopted to construct the aggregate distribution. Three different aggregate shapes, i.e., circular, oval and polygons, are generated
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Islam, Md Shafiqul, Md Abul Kalam Azad, and Arup Ratan Sarker. "Standardization the effect of shape of aggregates with respect to compressive strength of concrete." Challenge Journal of Concrete Research Letters 9, no. 1 (2018): 1. http://dx.doi.org/10.20528/cjcrl.2018.01.001.

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It is proved that aggregate’s types have the severe effect on physicomechanical properties of concrete as aggregate covered almost 70 to 80 percent of the total volume of concrete. The effect of Flaky and Elongated aggregates on strength, durability, and workability of concrete has often been qualitatively expressed. The aim of this work is establishing the same quantitatively. M25 grade concrete for different ratios of weights of Elongated to normal aggregate, Flaky to normal aggregate and combined Flaky & Elongated aggregate to normal aggregate was tested for compressive strength at 28 d
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Guo, L., S. Li, L. Zhong, et al. "A study on the effects of the fractal characteristics of aggregates on the mechanical behavior of cemented sand and gravel." Materiales de Construcción 71, no. 342 (2021): e250. http://dx.doi.org/10.3989/mc.2021.13020.

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Owing to complex aspects of cemented sand and gravel (CSG), such as included unscreened aggregates, CSG properties differ from those of ordinary concrete. Fractal theory is introduced to study the effects of aggregate characteristics on CSG properties, quantifying aggregate gradation and shape. Numerical simulation and analyses show that: (1) improved aggregate gradation decreases the gradation fractal dimension and increases the CSG peak stress and elastic modulus; (2) more irregularly shaped aggregates increase the shape fractal dimension and decrease the CSG peak stress and elastic modulus;
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Dunnavan, Edwin L., Zhiyuan Jiang, Jerry Y. Harrington, Johannes Verlinde, Kyle Fitch, and Timothy J. Garrett. "The Shape and Density Evolution of Snow Aggregates." Journal of the Atmospheric Sciences 76, no. 12 (2019): 3919–40. http://dx.doi.org/10.1175/jas-d-19-0066.1.

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Abstract Snow aggregates evolve into a variety of observed shapes and densities. Despite this diversity, models and observational studies employ fractal or Euclidean geometric measures that are assumed universal for all aggregates. This work therefore seeks to improve understanding and representation of snow aggregate geometry and its evolution by characterizing distributions of both observed and Monte Carlo–generated aggregates. Two separate datasets of best-fit ellipsoid estimates derived from Multi-Angle Snowflake Camera (MASC) observations suggest the use of a bivariate beta distribution m
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Al-Rousan, Taleb, Eyad Masad, Leslie Myers, and Cliff Speigelman. "New Methodology for Shape Classification of Aggregates." Transportation Research Record: Journal of the Transportation Research Board 1913, no. 1 (2005): 11–23. http://dx.doi.org/10.1177/0361198105191300102.

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Aggregate shape characteristics play a major role in determining the structural and functional properties of asphalt mixes. A comprehensive, statistically based methodology for the analysis and classification of the shape characteristics of both fine and coarse aggregates is presented. These characteristics are form (three dimensions of coarse aggregates), angularity, and surface texture. The methodology was developed by measuring the distribution of the shape characteristics of aggregates from a wide range of sources and varying sizes. The limits for the classification groups were determined
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Stempkowska, Agata, Tomasz Gawenda, Zdzisław Naziemiec, Krzysztof Adam Ostrowski, Daniel Saramak, and Agnieszka Surowiak. "Impact of the Geometrical Parameters of Dolomite Coarse Aggregate on the Thermal and Mechanic Properties of Preplaced Aggregate Concrete." Materials 13, no. 19 (2020): 4358. http://dx.doi.org/10.3390/ma13194358.

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The article shows investigations on the behavior of preplaced aggregate concrete with regular and irregular coarse aggregates. The thermal properties, compressive strength, and internal structure were analyzed based on computed tomography images. The regular and irregular shapes of aggregates were obtained according to patented technology, which is possible to produce in both laboratory and industrial conditions. Based on the conducted calculations, heat storage capacity was assessed. The influence of grain shape on the material strength, porosity, and hydration gaps was determined. Debonded p
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He, Huan, Luc Courard, Eric Pirard, and Frederic Michel. "SHAPE ANALYSIS OF FINE AGGREGATES USED FOR CONCRETE." Image Analysis & Stereology 35, no. 3 (2016): 159. http://dx.doi.org/10.5566/ias.1400.

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Fine aggregate is one of the essential components in concrete and significantly influences the material properties. As parts of natures, physical characteristics of fine aggregate are highly relevant to its behaviors in concrete. The most of previous studies are mainly focused on the physical properties of coarse aggregate due to the equipment limitations. In this paper, two typical fine aggregates, i.e. river sand and crushed rock, are selected for shape characterization. The new developed digital image analysis systems are employed as the main approaches for the purpose. Some other technical
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Suzuki, Kazumasa, Yasuaki Tokudome, Hiroshi Tsuda, and Masahide Takahashi. "Morphology control of BiFeO3aggregatesviahydrothermal synthesis." Journal of Applied Crystallography 49, no. 1 (2016): 168–74. http://dx.doi.org/10.1107/s1600576715023845.

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The assembly of crystalline building units with specific shape-derived properties into aggregates is often required to broaden their practical applications because the properties of the building units can be fully integrated and used in the aggregates owing to their orientation. Herein, morphology-controlled BiFeO3aggregates composed of oriented crystalline building units were fabricatedviaa hydrothermal process without any additives, and the effects of the supersaturation conditions on the aggregation state were investigated. The supersaturation condition, controlled by varying the KOH concen
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Li, Luoke, Meng Guo, and Cong Zeng. "Influence of the Chemical Composition of Asphalt and the 3D Morphology of the Aggregate on Contact Surface Adhesion." Advances in Civil Engineering 2021 (January 2, 2021): 1–16. http://dx.doi.org/10.1155/2021/8870295.

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The influence of the chemical composition of asphalt, the aggregate lithology, and the morphological characteristics of the aggregate on the level of adhesion between the asphalt and the aggregate is investigated. A contactless three-dimensional (3D) white-light scanning technique is used to obtain point cloud data of the aggregate particles. Six independent feature parameters are used as evaluation indices to quantitatively describe the multilevel features of the 3D morphology of road aggregates. Methods for analyzing the feature parameters based on the point cloud data of the aggregate are p
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Dissertations / Theses on the topic "Aggregate Shape"

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Al, Rousan Taleb Mustafa. "Characterization of aggregate shape properties using a computer automated system." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1485.

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Shape, texture, and angularity are among the properties of aggregates that have a significant effect on the performance of hot-mix asphalt, hydraulic cement concrete, and unbound base and subbase layers. Consequently, there is a need to develop methods that can quantify aggregate shape properties rapidly and accurately. In this study, an improved version of the Aggregate Imaging System (AIMS) was developed to measure the shape characteristics of both fine and coarse aggregates. Improvements were made in the design of the hardware and software components of AIMS to enhance its operational chara
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Gatchalian, Dennis. "Characterization of aggregate resistance to degradation in stone matrix asphalt mixtures." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3342.

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Stone matrix asphalt (SMA) mixtures rely on stone-on-stone contacts among particles to resist applied forces and permanent deformation. Aggregates in SMA should resist degradation (fracture and abrasion) under high stresses at the contact points. This study utilizes conventional techniques as well as advanced imaging techniques to evaluate aggregate characteristics and their resistance to degradation. Aggregates from different sources and types with various shape characteristics were used in this study. The Micro-Deval test was used to measure aggregate resistance to abrasion. The aggregate im
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McGahan, Jeremy. "The development of correlations between HMA pavement performance and aggregate shape properties." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3351.

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The physical characteristics of aggregates (form, angularity, and texture) are known to affect the performance of hot mix asphalt (HMA) pavements. Efforts to develop relationships between these aggregate characteristics and aggregate performance in HMA pavements have been limited in the past due to inherent inaccuracies in the methods used to measure these characteristics. The recently developed Aggregate Imaging System (AIMS) offers an opportunity to accurately measure aggregate shape characteristics allowing them to be properly related to asphalt performance. This research focused on relatin
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Mora, Carlos F. "Particle size and shape analysis of coarse aggregate using digital image processing." Thesis, Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22030153.

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Ozen, Murat. "Investigation Of Relationship Between Aggregate Shape Parameters And Concrete Strength Using Imaging Techniques." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608324/index.pdf.

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In this study, relationships between aggregate shape parameters and compressive strength of concrete were investigated using digital image processing and analysis methods. The study was conducted based on three mix design parameters, gradation type, aggregate type and maximum aggregate size, at two levels. A total of 40 cubic concrete specimens were prepared at a constant water-cement ratio. After the compressive strength tests were performed, each specimen was cut into 4 equal pieces in order to obtain the digital images of cross sections using a digital flatbed scanner. A number of aggregate
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True, Graham Frank. "Development of image analysis techniques to assist evaluation of both air void structure and aggregate shape factors in concrete." Thesis, University of Wolverhampton, 2011. http://hdl.handle.net/2436/605082.

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Significant reduction in both strength and durability of concrete is brought about by voids left within the concrete once it has hardened. These voids can arise from a number of sources both intentional, in the case of air-entrained voids introduced by admixtures batched to provide a structure that can withstand frost attack and unintentional in the case of entrapped voids that arise due to characteristic of the sand and aggregates, excess water added and a lack of consolidation whilst plastic. Aggregate form, shape and texture are known to influence the way particles pack together and therefo
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Breytenbach, Izak Johannes. "A laser-based assessment of road construction aggregate shape and texture properties and their relationship with material shear strength, a pilot study." Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/53546.

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Experimental research was undertaken to exploit the use of an innovative laser scanning tool and to apply the equipment to the study of (G1) road construction aggregate obtained from crushed rock quarry sources. The aim of the research was to better quantify particle shape and surface texture characteristics and an attempt was made to relate these to the shear strength properties of the materials investigated. By obtaining a better understanding of the effects that particle shape and texture have on the shear strength properties of a material, the overall efficiency of construction aggr
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Tolppanen, Pasi. "3-D Characterization and Degradation Analysis of Rock aggregates." Doctoral thesis, Stockholm : Tekniska högsk, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3225.

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Li, Ying. "Digital Mix Design for Performance Optimization of Asphalt Mixture." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/72959.

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Asphalt mix design includes the determination of a gradation, asphalt content, other volumetric properties, the evaluation of mechanical properties and moisture damage potentials. In this study, a computational method is developed to aid mix design. Discrete element method (DEM) was used to simulate the formation of skeleton and voids structures of asphalt concrete of different gradations of aggregates. The optimum gradation could be determined by manipulating the particle locations and orientations and placing smaller particles in the voids among larger particles. This method aims at an optim
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Koh, Chon Jin. "Characterisation of shape of fine recycled crushed coloured glass and the effect on the properties of structural concrete when used as a fine aggregate replacement." Thesis, University of Wolverhampton, 2014. http://hdl.handle.net/2436/561256.

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In order to reduce the use of landfilling within waste management great emphasis is being placed on waste reduction and recycling. Each year in the UK approximately 2.5 Mt of waste glass is produced and approximately half of this waste is not recyclable. Therefore alternative ways need to be found for using waste glass and one possibility is to use it within concrete as a replacement for cement and/ or aggregate. In the research programme concrete mixes were tested which had 0%, 25%, 50% and 100% of the fine aggregate replaced by crushed waste glass. All glass was originally in bottle form and
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Books on the topic "Aggregate Shape"

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McSwiney, Steven David. Determination of the water demand of fine aggregate and its relationship to shape. Queen Mary and Westfield College, 1993.

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Knight, Mark Michael. The use of shale waste as concrete aggregate. Queen Mary and Westfield College, 1993.

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Kelly, Brian. A study of the characteristics of particle shape with particular reference to production and performance of road aggregates. The Author], 1993.

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Eyad, Masad, National Cooperative Highway Research Program., American Association of State Highway and Transportation Officials., United States. Federal Highway Administration., and National Research Council (U.S.). Transportation Research Board., eds. Test methods for characterizing aggregate shape, texture, and angularity. Transportation Research Board, 2007.

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Test Methods for Characterizing Aggregate Shape, Texture, and Angularity. Transportation Research Board, 2007. http://dx.doi.org/10.17226/14017.

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Appendixes to NCHRP Report 555: Test Methods for Characterizing Aggregate Shape, Texture, and Angularity. Transportation Research Board, 2007. http://dx.doi.org/10.17226/23206.

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Gertler, Meric S. Institutions, Geography, and Economic Life. Edited by Gordon L. Clark, Maryann P. Feldman, Meric S. Gertler, and Dariusz Wójcik. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198755609.013.12.

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Institutional approaches to understanding economic activity have become widespread in recent years. Both economists and economic geographers have embraced the idea that institutions shape, constrain, and enable economic behaviour, and that the nature of this relationship will vary according to the institutional architecture of particular geographical spaces. While much work has focused on national institutions, geographers have shown interest in the role and influence of regional institutions in shaping economic behaviour. Economists have largely confined their analysis to how formal national
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Thorlakson, Lori. Multi-Level Democracy. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198833505.001.0001.

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All federal systems face an internal tension between divisive and integrative political forces, striking a balance between providing local autonomy and representation on one hand and maintaining an integrated political community on the other hand. How multi-level systems strike this balance depends on the development of styles of either integrated politics, which creates a shared framework for political competition across the units of a federation, or independent politics, preserving highly autonomous arenas of political life. This book argues that the long-term development of integrated or in
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Gulati, Namrata, and Tridip Ray. Inequality and Neighbourhood Effects. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198812555.003.0011.

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The key insight in our research is to recognize inequality–neighbourhood interaction: neighbourhood effects interacting with income inequality may affect poor people’s ability to access basic facilities like health-care services, schooling, and so on. While Gulati and Ray (2016) model this interaction on a monopolist service provider in a neighbourhood structured as a linear city where rich and poor consumers live side by side, in this chapter we extend the analysis to a competitive framework with free entry and exit where the natural neighbourhood structure is a circular city. We find inverte
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Golder, Sona N., Ignacio Lago, André Blais, Elisabeth Gidengil, and Thomas Gschwend. Multi-Level Governance. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198791539.003.0001.

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The existing framework for explaining variation in voter turnout and vote choice across multiple levels of government is more useful for addressing aggregate patterns than for addressing micro-level behaviour. To better understand the aggregate outcomes of interest, this chapter proposes an examination of individual voter behaviour and strategies of party elites that take account of the incentives provided by multiple electoral arenas. In doing so, the chapter investigates the variation in both party and voter behaviour that is often overlooked in existing work. In the presence of multiple ele
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Book chapters on the topic "Aggregate Shape"

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Thaker, Parth, and Narendra Arora. "Measurement of Aggregate Size and Shape Using Image Analysis." In Lecture Notes in Civil Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26365-2_68.

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Moghaddam, Taher Baghaee, and Hassan Baaj. "Effects of Aggregate Shape Parameters and Gradation on High-Modulus Asphalt Mix Performance." In RILEM Bookseries. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-46455-4_82.

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Li, Wei, Huahan Chen, Zhangbo Wan, and Xuecheng Bian. "Quantify the Size and Shape of Aggregate Particles Based on the Double Mirror Method." In Environmental Vibrations and Transportation Geodynamics. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4508-0_48.

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Thorne, Camilo, and Diego Calvanese. "Controlled Aggregate Tree Shaped Questions over Ontologies." In Flexible Query Answering Systems. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04957-6_34.

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Bailey, Michael, Drew Johnston, Theresa Kuchler, Dominic Russel, Bogdan State, and Johannes Stroebel. "The Determinants of Social Connectedness in Europe." In Lecture Notes in Computer Science. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60975-7_1.

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Abstract We use de-identified and aggregated data from Facebook to study the structure of social networks across European regions. Social connectedness declines strongly in geographic distance and at country borders. Historical borders and unions—such as the Austro-Hungarian Empire, Czechoslovakia, and East/West Germany—shape present-day social connectedness over and above today’s political boundaries and other controls. All else equal, social connectedness is stronger between regions with residents of similar ages and education levels, as well as between regions that share a language and religion. In contrast, region-pairs with dissimilar incomes tend to be more connected, likely due to increased migration from poorer to richer regions.
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Müller, Birgit Charlotte. "Capital Share Risk in International Asset Pricing." In Three Essays on Empirical Asset Pricing in International Equity Markets. Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-35479-4_3.

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ZusammenfassungIn a seminal study, Lettau et al. (2019) demonstrate that a single macroeconomic factor can explain a wide range of equity and nonequity portfolio returns within the U.S. market. This factor, which is based on the growth in the capital share of aggregate income, is able to outperform, yet even subsume information in well-established factor models as for instance the Fama-French three factor model. The aim of this paper is to study whether the explanatory power of this factor maintains across international equity markets.
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Farago, B. "Shape and Size Fluctuation of Microemulsion Droplets." In Structure and Dynamics of Strongly Interacting Colloids and Supramolecular Aggregates in Solution. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2540-6_16.

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Pierce, Charles E., and Larry R. Brown. "Evaluation of Particle Shape and Surface Texture of Recycled Organic Aggregates." In Testing and Specification of Recycled Materials for Sustainable Geotechnical Construction. ASTM International, 2011. http://dx.doi.org/10.1520/stp49464t.

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Pierce, Charles E., and Larry R. Brown. "Evaluation of Particle Shape and Surface Texture of Recycled Organic Aggregates." In Testing and Specification of Recycled Materials for Sustainable Geotechnical Construction. ASTM International, 2011. http://dx.doi.org/10.1520/stp154020120003.

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Pramukh, N. "Role of Shape and Size of Aggregates in Marshall Properties of HMA." In Advances in Sustainable Construction Materials. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4590-4_13.

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Conference papers on the topic "Aggregate Shape"

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Chengbin, Du, and Sun Liguo. "Numerical Simulation of Aggregate Shape of Concrete." In 10th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments and Second NASA/ARO/ASCE Workshop on Granular Materials in Lunar and Martian Exploration. American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40830(188)158.

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Liu, Qing-feng, Jian Yang, and Long-yuan Li. "Aggregate Shape Effect on Multicomponent Ionic Electromigration in Concrete." In International Conference on the Durability of Concrete Structures. Purdue University Press, 2016. http://dx.doi.org/10.5703/1288284316109.

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Joret, Ariffuddin, M. Subhi Al-Batah, Ahmad Nazri Ali, Nor Ashidi Mat Isa, and Muhammad Suhaimi Sulong. "Ashac: An alternative towards classifying the shape of aggregate." In 2007 International Conference on Intelligent and Advanced Systems (ICIAS). IEEE, 2007. http://dx.doi.org/10.1109/icias.2007.4658382.

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Liu, Shushu, Hai Huang, and Tong Qiu. "Laboratory Development and Testing of “SmartRock” for Railroad Ballast Using Discrete Element Modeling." In 2015 Joint Rail Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/jrc2015-5694.

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Ballast aggregate settlement is generally a result of consolidation or rearrangment of ballast particles in the area underneath crossties. Excessive settlement negatively impacts track performance, resulting in increased risk of train derailment. The purpose of this paper is to compare two methods to evaluate ballast aggregate settlement with repeated loading in railroad: discrete element modeling and laboratory tests using “SmartRock”. In this study, ballast aggregates are considered as uniformly graded, angular shaped with crushed faces. For the discrete element modeling, digital imaging tec
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Xiao, Yuanjie, Erol Tutumluer, and Yu Qian. "DEM Approach for Engineering Aggregate Gradation and Shape Properties Influencing Mechanical Behavior of Unbound Aggregate Materials." In Geo-Congress 2014. American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413272.281.

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Pan, Tongyan, and Erol Tutumluer. "Evaluation of Visual Based Aggregate Shape Classifications Using the University of Illinois Aggregate Image Analyzer (UIAIA)." In GeoShanghai International Conference 2006. American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40866(198)26.

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Choi, Sung-Mo, Won Ho Choi, Kangseok Lee, Jae-Yong Ryoo, Sunhee Kim, and Yong-Pil Park. "Compressive performance of 50 MPa strength concrete-filled square and circular tube (CFT) columns using recycled aggregate." In 12th international conference on ‘Advances in Steel-Concrete Composite Structures’ - ASCCS 2018. Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/asccs2018.2018.7021.

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Recycled aggregate is an environmentally self-sustainable solution that can reduce construction waste and replace natural aggregates. However, there is a disadvantage in concrete such as initial strength drop and long-term strength development. Therefore, the interaction effect of the two materials can be expected by filling the cyclic aggregate concrete in the CFT column. In order to develop a concrete with compressive strength of 50 MPa as a recycled aggregate, we carried out a mixing experiment and fabricated 18 specimens to confirm the compressive behavior of a RCFT (Recycled Concrete Fill
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Lieu, Uyen Tu, and Shusaku Harada. "Restructuring Capability of Non-Fractal Aggregate in Simple Shear Flow." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-31092.

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We have performed numerical simulation to investigate the restructuring capability of an isolated non-fractal aggregate in simple shear flow. The change in structure of aggregate having different initial packing properties is numerically examined by a Lagrangian approach. Stokesian dynamics is employed as a rigorous method for the calculation of the hydrodynamic interaction, while the inter-particle interaction is estimated by Van der Waals potential. Simulation results show that under the effect of the rotational component and the extensional component of shear flow, the aggregate simultaneou
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Shah, Shahreena Melati Rhasbudin, and Mohd Ezree Abdullah. "Effect of Aggregate Shape on Skid Resistance of Compacted Hot Mix Asphalt (HMA)." In 2010 Second International Conference on Computer and Network Technology. IEEE, 2010. http://dx.doi.org/10.1109/iccnt.2010.78.

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Pan, T., and E. Tutumluer. "Imaging Based Evaluation of Coarse Aggregate Size and Shape Properties Affecting Pavement Performance." In Geo-Frontiers Congress 2005. American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40776(155)3.

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Reports on the topic "Aggregate Shape"

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Andrade, Philippe, Olivier Coibion, Erwan Gautier, and Yuriy Gorodnichenko. No Firm is an Island? How Industry Conditions Shape Firms' Aggregate Expectations. National Bureau of Economic Research, 2020. http://dx.doi.org/10.3386/w27317.

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Henry, Karen S. Influence of Wheel Load Shape on Vertical Stress Reaching Subgrade through an Aggregate Layer. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada394224.

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Huang, Haohang, Jiayi Luo, Erol Tutumluer, John Hart, and Issam Qamhia. Size and Shape Determination of Riprap and Large-sized Aggregates Using Field Imaging. Illinois Center for Transportation, 2020. http://dx.doi.org/10.36501/0197-9191/20-003.

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Heresi, Rodrigo. Reallocation and Productivity during Commodity Cycles. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003203.

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I study the firm-level dynamic response of a commodity-exporting economy to global cycles in commodity prices. To do so, I develop a heterogeneous-firms model that endogenizes declines in aggregate productivity through reallocation towards less productive firms. Within a given sector, commodity booms reallocate market share away from exporters because of currency appreciation and away from capital-intensive firms because of the increase in capital cost. I provide empirical evidence for these channels using microdata for Chile, the worlds largest copper producer. When fed with the commodity sup
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Tauer, J. E., E. K. Ensley, P. M. Harnsberger, and R. E. Robertson. Evaluation of energies of interaction correlated with observed stabilities and rheological properties of asphalt-aggregate mixtures of western shale-oil residue as a modifier to petroleum asphalt. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10189256.

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van den Boogaard, Vanessa, Wilson Prichard, Rachel Beach, and Fariya Mohiuddin. Strengthening Tax-Accountability Links: Fiscal Transparency and Taxpayer Engagement in Ghana and Sierra Leone. Institute of Development Studies, 2020. http://dx.doi.org/10.19088/ictd.2020.002.

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There is increasingly strong evidence that taxation can contribute to expanded government responsiveness and accountability. However, such positive connections are not guaranteed. Rather, they are shaped by the political and economic context and specific policies adopted by governments and civil society actors. Without an environment that enables tax bargaining, there is a risk that taxation will amount to little more than forceful extraction. We consider how such enabling environments may be fostered through two mixed methods case studies of tax transparency and taxpayer engagement in Sierra
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Kaffenberger, Michelle, and Lant Pritchett. Women’s Education May Be Even Better Than We Thought: Estimating the Gains from Education When Schooling Ain’t Learning. Research on Improving Systems of Education (RISE), 2020. http://dx.doi.org/10.35489/bsg-rise-wp_2020/049.

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Women’s schooling has long been regarded as one of the best investments in development. Using two different cross-nationally comparable data sets which both contain measures of schooling, assessments of literacy, and life outcomes for more than 50 countries, we show the association of women’s education (defined as schooling and the acquisition of literacy) with four life outcomes (fertility, child mortality, empowerment, and financial practices) is much larger than the standard estimates of the gains from schooling alone. First, estimates of the association of outcomes with schooling alone can
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Financial Stability Report - September 2015. Banco de la República, 2021. http://dx.doi.org/10.32468/rept-estab-fin.sem2.eng-2015.

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From this edition, the Financial Stability Report will have fewer pages with some changes in its structure. The purpose of this change is to present the most relevant facts of the financial system and their implications on the financial stability. This allows displaying the analysis more concisely and clearly, as it will focus on describing the evolution of the variables that have the greatest impact on the performance of the financial system, for estimating then the effect of a possible materialization of these risks on the financial health of the institutions. The changing dynamics of the ri
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