Academic literature on the topic 'Scale-sensitive fractal analysis (SSFA)'

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Journal articles on the topic "Scale-sensitive fractal analysis (SSFA)"

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LOUAIL, Margot, Antoine SOURON, Gildas MERCERON, and Jean-Renaud BOISSERIE. "New insights on feeding habits of Kolpochoerus van Hoepen & van Hoepen, 1932 from the Shungura Formation (Lower Omo Valley, Ethiopia) using dental microwear texture analysis." Comptes Rendus Palevol 24, no. 7 (2025): 89–122. https://doi.org/10.5852/cr-palevol2025v24a7.

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During the Neogene and the Quaternary, African suids show dental morphological changes considered to reflect adaptations to increasing specialization on graminivorous diets, notably in the genus <em>Kolpochoerus </em>van Hoepen &amp; van Hoepen, 1932. They tend to exhibit elongated third molars and some degree of hypsodonty, suggesting increasing consumption of abrasive grasses. However, the most significant morphological changes are observed more than 1 million years after the increased consumption of C4 plants, such as graminoids. To date, only a few studies have applied dental microwear tex
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Brown, Christopher A., William A. Johnsen, Rachel M. Butland, and Jim Bryan. "Scale-Sensitive Fractal Analysis of Turned Surfaces." CIRP Annals 45, no. 1 (1996): 515–18. http://dx.doi.org/10.1016/s0007-8506(07)63114-x.

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PEDRESCHI, FRANCO, JOSÉ M. AGUILERA, and CHRISTOPHER A. BROWN. "CHARACTERIZATION OF FOOD SURFACES USING SCALE-SENSITIVE FRACTAL ANALYSIS." Journal of Food Process Engineering 23, no. 2 (2000): 127–43. http://dx.doi.org/10.1111/j.1745-4530.2000.tb00507.x.

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Briones, Vilbett, Christopher A. Brown, and José M. Aguilera. "Scale-sensitive fractal analysis of the surface roughness of bloomed chocolate." Journal of the American Oil Chemists' Society 83, no. 3 (2006): 193–99. http://dx.doi.org/10.1007/s11746-006-1193-z.

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Pedreschi, Franco, Jose Aguilera, and Christopher Brown. "CHARACTERIZATION OF THE SURFACE PROPERTIES OF CHOCOLATE USING SCALE-SENSITIVE FRACTAL ANALYSIS." International Journal of Food Properties 5, no. 3 (2002): 523–35. http://dx.doi.org/10.1081/jfp-120015489.

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Xu, Yi Dong, and Chun Xiang Qian. "Fractal Characterization of Corroded Surface Profile in Reinforcing Steel Bars." Advanced Materials Research 163-167 (December 2010): 3118–21. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3118.

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Based on fractal geometry theory and surface roughness characterization technology, this paper presents the fractal characterization of nonuniform corrosion degree of corroded reinforcing steel bars. The surface profile curves of different corroded reinforcing steel bars were obtained and their fractal dimensions were calculated in order to describe the fractal characteristics. As is shown by the results, the surface profile curves of rebar have statistical fractal feature. However, fractal dimension is not sensitive to small changes in profile curves. By combining fractal dimension D with sca
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Kennedy, F. E., C. A. Brown, J. Kolodny, and B. M. Sheldon. "Fractal Analysis of Hard Disk Surface Roughness and Correlation With Static and Low-Speed Friction." Journal of Tribology 121, no. 4 (1999): 968–74. http://dx.doi.org/10.1115/1.2834163.

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The purpose of this work was to use new scale-sensitive fractal parameters to characterize the surface topography of computer hard disks and to correlate the fractal parameters with measured start-up friction (or stiction) behavior of textured hard disks. The topographies of glass disks with three different surface textures and aluminum disks with two different textures were measured using an atomic force microscope. Two parameters derived from area-scale fractal analysis by the patchwork method were chosen to characterize the surface topography: smooth-rough crossover and area-scale fractal c
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Articus, Konstantin, Christopher A. Brown, and Klaus-P. Wilhelm. "Scale-sensitive fractal analysis using the patchwork method for the assessment of skin roughness." Skin Research and Technology 7, no. 3 (2001): 164–67. http://dx.doi.org/10.1034/j.1600-0846.2001.70304.x.

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Tompkins, Adrian M., and Francesca Di Giuseppe. "An Interpretation of Cloud Overlap Statistics." Journal of the Atmospheric Sciences 72, no. 8 (2015): 2877–89. http://dx.doi.org/10.1175/jas-d-14-0278.1.

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Abstract Observational studies have shown that the vertical overlap of cloudy layers separated by clear sky can exceed that of the random overlap assumption, suggesting a tendency toward minimum overlap. In addition, the rate of decorrelation of vertically continuous clouds with increasing layer separation is sensitive to the horizontal scale of the cloud scenes used. The authors give a heuristic argument that these phenomena result from data truncation, where overcast or single cloud layers are removed from the analysis. This occurs more frequently as the cloud sampling scale falls progressiv
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Walter, Nike, Nicole Meinersen-Schmidt, Patricia Kulla, Thomas Loew, Joachim Kruse, and Thilo Hinterberger. "Sensory-Processing Sensitivity Is Associated with Increased Neural Entropy." Entropy 25, no. 6 (2023): 890. http://dx.doi.org/10.3390/e25060890.

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Background: This study aimed at answering the following research questions: (1) Does the self-reported level of sensory-processing sensitivity (SPS) correlate with complexity, or criticality features of the electroencephalogram (EEG)? (2) Are there significant EEG differences comparing individuals with high and low levels of SPS? Methods: One hundred fifteen participants were measured with 64-channel EEG during a task-free resting state. The data were analyzed using criticality theory tools (detrended fluctuation analysis, neuronal avalanche analysis) and complexity measures (sample entropy, H
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Dissertations / Theses on the topic "Scale-sensitive fractal analysis (SSFA)"

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"Variation in Dental Microwear Textures and Dietary Variation in African Old World Monkeys (Cercopithecidae)." Doctoral diss., 2015. http://hdl.handle.net/2286/R.I.29886.

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abstract: Dietary diversity is an important component of species’s ecology that often relates to species’s abundance and geographic distribution. Additionally, dietary diversity is involved in many hypotheses regarding the geographic distribution and evolutionary fate of fossil primates. However, in taxa such as primates with relatively generalized morphology and diets, a method for approximating dietary diversity in fossil species is lacking. One method that has shown promise in approximating dietary diversity is dental microwear analyses. Dental microwear variance has been used to infer di
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Vedantha, Krishna Amogh. "Towards Topography Characterization of Additive Manufacturing Surfaces." Licentiate thesis, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-43753.

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Additive Manufacturing (AM) is on the verge of causing a downfall to conventional manufacturing with its huge potential in part manufacture. With an increase in demand for customized product, on-demand production and sustainable manufacturing, AM is gaining a great deal of attention from different industries in recent years. AM is redefining product design by revolutionizing how products are made. AM is extensively utilized in automotive, aerospace, medical and dental applications for its ability to produce intricate and lightweight structures. Despite their popularity, AM has not fully replac
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Conference papers on the topic "Scale-sensitive fractal analysis (SSFA)"

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Siegmann, S. D., and C. A. Brown. "Scale-Sensitive Fractal Analysis for Understanding the Influence of Substrate Roughness in Thermal Spraying." In ITSC 1997, edited by C. C. Berndt. ASM International, 1997. http://dx.doi.org/10.31399/asm.cp.itsc1997p0665.

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Abstract It is widely recognized that substrate surface roughness, or topography, plays an important role in droplet-substrate interaction and the adhesion of sprayed coatings. A key difficulty in understanding the role that topography plays during droplet impact, wetting and solidification has been the availability of methods for appropriate characterization of the topography. The complex nature of the substrate topographies cannot be adequately characterized by conventional methods such as Ra. In this work, scale-sensitive fractal analyses are considered for advancing the understanding of ro
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Siegmann, S. D., and C. A. Brown. "Investigation of Substrate Roughness in Thermal Spraying by a Scale-Sensitive 3-D Fractal Analysis Method." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p0831.

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Abstract For the adhesion of thermally sprayed coatings, the substrate roughness, or topography, plays an important role in droplet-substrate interaction. The lack of availability of methods for appropriate characterization of the real topography is a major difficulty in understanding the role that topography plays during droplet impact, wetting and solidification. The complex nature of the usually chaotic substrate topographies cannot be fully characterized by conventional roughness numbers such as Sa or Ra. In our study a scale-sensitive fractal analysis method is used for describing the mor
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Chi, Zhongran, and Longfei Wang. "Scale Cooling -- A Novel Fractal Cooling Structure for Turbine Vanes." In ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-124040.

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Abstract Additive manufacturing technology provides the possibility of more efficient turbine cooling structures. In this work, a novel structure for turbine air-cooled vane based on fractal structure, named Scale Cooling Structure, was proposed. Fractal channel arrays are arranged on the leading edge, pressure side, and suction side of the novel vane. The design of the fractal channel units takes into account the internal cooling effect, film cooling effect, manufacturing accessibility of the channels, and adaptability to non-uniform thermal loads. The initiated cooling structure allows for t
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Domash, Lawrence, Vincent Ryan, and Parviz Tayebati. "Optical processing of fractal images." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.thqq3.

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Fractal textures occur in natural scenary or satellite images (clouds, ocean waves). However, processing of fractal image data to extract measurements such as fractal dimension is highly computation-intensive when serial digital methods are used. Massively parallel nonlinear optical processing methods are proposed to characterize fractal images in real time. A photorefractive real time image processor performing a combined convolution/correlation operation is used to measure the correlation dimension of sample fractal patterns. The optical algorithm employs an image autocorrelation performed s
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Alemi, Mohammad Mehdi, Saied Taheri, and Mehdi Ahmadian. "Rail Surface Measurement and Multi-Scale Modeling of Wheel-Rail Contact." In 2016 Joint Rail Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/jrc2016-5826.

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The primary purpose of this study is to use a nano-scale optical surface profilometer to assess the feasibility of such instruments in measuring localized friction coefficient on railways, beyond what can be commonly measured by tribometers used by the railroad industry. One of the important aspects of moving freight and passengers on railways is the ability to manage and control the friction between the rails and wheels. Creating a general friction model is a challenging task because friction is influenced by various factors such as surface metrology, properties of materials in contact, surfa
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Zhang, Qian, Wengdong Wang, Yuliang Su, and Wenfeng Yu. "A Novel Inter-Porosity Flow Model for Multi-Scale Shale Reservoirs with Nonuniform Laminated Fractures." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/215484-ms.

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Abstract In shale reservoirs, the presence of nano-scale pores and natural fractures leads to various phenomena, such as micro-scale effects and media deformation. Further studies are necessary to better understand the flow mechanisms occurring within nanopores and micro-fractures. Moreover, the flow relationship among organic pores, inorganic pores, and laminated fractures is not well understood and the existing methods for evaluating shale oil productivity do not adequately account for the heterogeneous distribution of laminated fractures. Therefore, the primary objective of this paper is to
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