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Journal articles on the topic 'Shape Analysi'

Author: Grafiati

Published: 11 March 2023

Last updated: 31 July 2025

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1

Han, Woo Shin, and Jeong Wook Choi. "A Study on the Type of Women's Body In their early 20s in China: Focused on the Residents in Shanghai." Institute of Art & Design Research 26, no. 2 (2023): 153–60. http://dx.doi.org/10.59386/jadr.2023.26.2.153.

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This study is to categorize the body types of Chinese w omen in their twenties based on their morphology and pr ovide basic data that can be used for Korean clothing co mpanies. Human body size data were directly measured o n 600 women in their twenties residing in Shanghai, Chi na from January 2020 to September 2023. The human bo dy measurement items include 9 perimeter items and 10 length items, measuring a total of 19 items. In order to extract factors that can analyze body shape, factor analysi s was conducted and two factors were identified. Factor 1 is “perimeter and width”, and factor 2

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Franceschi, Eleonora, Astrid Moser-Reischl, Mohammad A. Rahman, Stephan Pauleit, Hans Pretzsch, and Thomas Rötzer. "Crown Shapes of Urban Trees-Their Dependences on Tree Species, Tree Age and Local Environment, and Effects on Ecosystem Services." Forests 13, no. 5 (2022): 748. http://dx.doi.org/10.3390/f13050748.

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Crown shapes of common European urban tree species differ from tree species to tree species and are modified by the age of a tree and its local environment. A tree’s crown shape has a great influence on the crown volume and thus on the ecosystem service provision of a tree such as the shade area or the shade density. We used the data of 3852 tree individuals from eight German cities and the crown shape data of 528 trees for the species Acer platanoides, Acer pseudoplatanus, Aesculus hippocastanum, Fraxinus excelsior, Platanus × acerifolia, Robinia pseudoacacia and Tilia cordata to analyze tree

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3

Thi Yen, Hoang, Phan Nguyen Uyen Nguyen, and Hien Thi Nguyen. "Analysis and modeling of adult male body shape aged 25–45 by CLO3D software." BOHR International Journal of Computer Science 3, no. 1 (2024): 1–11. https://doi.org/10.54646/bijcs.2024.19.

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This study conducted body shape research on 175 males aged 35–45 in Ho Chi Minh City, Vietnam. The aim was to develop accurate and intuitive analytical models to classify different body types. The research team utilized various statistical tools, such as descriptive analysis, principal component analysis, k-means clustering, and discriminant analysis—all supported by SPSS software—to identify the most reasonable body shape classifications. The study results identified the 5 most common body shapes: U-shaped, Y-shaped, V-shaped, O-shaped, and D-shaped. To enhance the visualization of these body

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Bender-Heine, Adam, Michelle Russell, Allen Rickards, et al. "Optimal Costal Cartilage Graft Selection According to Cartilage Shape: Anatomical Considerations for Rhinoplasty." Facial Plastic Surgery 33, no. 06 (2017): 670–74. http://dx.doi.org/10.1055/s-0037-1607972.

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AbstractCostal cartilage grafting is a commonly used reconstruction procedure, particularly in rhinoplasty. Although costal cartilage is broadly used in reconstructive surgery, there are differing opinions regarding which costal cartilage levels provide the most ideal grafts. Grafts are typically designed to match the shape of the recipient site. The shapes of costal cartilage grafts have been described as “boat-shaped,” “C-shaped,” “canoe-shaped,” “U-shaped,” “crescent-shaped,” “L-shaped,” “semilunar,” “straight,” and “Y-shaped.” The shapes of costal cartilages are thought to lend themselves

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Rusconi, Brigida, Julia Lienard, Sébastien Aeby, Antony Croxatto, Claire Bertelli, and Gilbert Greub. "Crescent and star shapes of members of the Chlamydiales order: impact of fixative methods." Antonie Van Leeuwenhoek 104, no. 4 (2013): 521–32. https://doi.org/10.1007/s10482-013-9999-9.

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Members of the Chlamydiales order all share a biphasic lifecycle alternating between small infectious particles, the elementary bodies (EBs) and larger intracellular forms able to replicate, the reticulate bodies. Whereas the classical Chlamydia usually harbours round-shaped EBs, some members of the Chlamydia-related families display crescent and star-shaped morphologies by electron microscopy. To determine the impact of fixative methods on the shape of the bacterial cells, different buffer and fixative combinations were tested on purified EBs of Criblamydia sequanensis, Estrella lausannensis,

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Kumar, Pramod, Santanu Dwari, Shailendra Singh, Ashok Kumar, N. K. Agrawal, and Utkarsh Kumar. "Analysis and Optimization of Conformal Patch Excited Wideband DRA of Several Shapes." Frequenz 72, no. 5-6 (2018): 197–208. http://dx.doi.org/10.1515/freq-2017-0039.

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AbstractIn this paper various shapes of DR antennas excited by common feed have been proposed and successfully implemented for wideband applications. Proposed structures are Hemispherical, Arrow-shaped and Triangular DRA, while common excited feed is inverted trapezoidal conformal patch. These shapes of DR offer significant optimization in several parameters such as impedance bandwidth, peak gain and bandwidth per unit volume of the antenna. By using inverted trapezoidal patch feed mechanism an impedance bandwidth (VSWR<2) of about 63 % for hemispherical shape, 66 % for arrow shape, and 72

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Rajani, Ahmad, Dalila Mat Said, Zulkarnain Ahmad Noorden, et al. "U-Turn Shape Effect on Effective Thermal Conductivity of Double Pass Photovoltaic Thermal (PVT) Systems Configuration." CFD Letters 17, no. 5 (2024): 12–25. https://doi.org/10.37934/cfdl.17.5.1225.

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This study explores the thermal performance of double-pass photovoltaic thermal (PVT) systems by investigating the influence of turn shape on heat transfer characteristics using computational fluid dynamics (CFD) simulations. The aim is to evaluate various turn shapes, including half-circle, triangle, half-hexagon, half-octagon, and box, to determine their impact on turbulent intensity, effective thermal conductivity, and outlet temperature in PVT systems. The investigation reveals significant variations in heat transfer efficiency among the different turn shapes, with the triangle-shaped turn

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Liu, Junpeng, Yajing Sun, Gang Chen, and Pengcheng Zhai. "Performance Analysis of Variable Cross-Section TEGs under Constant Heat Flux Conditions." Energies 16, no. 11 (2023): 4473. http://dx.doi.org/10.3390/en16114473.

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In this paper, five shapes of thermoelectric generator (TEG) models (cylindrical, barrel shaped, hourglass shaped, cup shaped, and inverse cup shaped) are built under the boundary conditions of heat flux at the hot end and convection at the cold end of the TEGs. Based on the numerical simulation results, the configuration of the variable cross-section can effectively boost the performance of TEGs. Remarkably, the hourglass-shaped TEG generated the maximum output power and efficiency, which were 69.62% and 70.96% higher than that of the conventional cylindrical TEG, respectively. The results in

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9

Kumar B., Varun, G. Manikandan, P. Kanna, et al. "A Performance Evaluation of a Solar Air Heater Using Different Shaped Ribs Mounted on the Absorber Plate—A Review." Energies 11, no. 11 (2018): 3104. http://dx.doi.org/10.3390/en11113104.

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In this paper, the effect of various shapes of ribs used in Solar Air Heaters (SAHs) was discussed. The review is concentrated on the geometry of the rib and its location on the SAH panel. Both numerical and experimental works were considered for discussion with dry air and Nano fluids as a working fluid. The influence of various shapes, such as an L shape, W shape, V shape, Multiple V shape, V shape with a gap, detachable & attachable ribs etc., was analyzed. The common fact observed from this analysis is that the implementation of artificial roughness in the absorber plate results in a c

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Asha, S. K., G. Sunitha, and Chandrashekhar M. Hadapad. "Different shapes of nanoparticles on peristaltic transport of a Casson fluid in the presence of MHD, thermal radiation and Porous medium." International Journal of Computational Materials Science and Engineering 10, no. 02 (2021): 2150008. http://dx.doi.org/10.1142/s2047684121500081.

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The influence of different shapes of nanoparticles on peristaltic flow of Casson fluid in an asymmetric channel is studied in this paper. The suspension of Copper oxide nanoparticles of needle, platelet and lamina shapes is taken into account. The problem is modeled in partial differential equations with suitable slip boundary conditions. The standard nonlinear equations are solved by the Homotopy Analysis Method in Mathematica Software. The influences of different shapes of nanoparticles on concentration, velocity profile and temperature profile are analyzed through the graphs. It is observed

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Lee, Sang-ik, Jin-Yong Choi, and Won Choi. "Effect of Groove Shape on Head Loss and Filtration Performance of Disc Filters." Water 13, no. 12 (2021): 1683. http://dx.doi.org/10.3390/w13121683.

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To analyze the effect of a groove cross-sectional shape on disc filters, a head loss analysis and filtration performance test were conducted using disc filters with different groove shapes (semi-elliptical- and trapezoidal-shaped grooves). Furthermore, the groove shapes were analyzed using field emission scanning electron microscopy and the relationship between flow rate and head loss was derived from the head loss test. Even if the filters were designed with the same mesh standard, the sectional areas of the grooves were different depending on the shape. Therefore, the head loss was compared

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Baechler, J., C. A. Beck, and W. D. Bowen. "Dive shapes reveal temporal changes in the foraging behaviour of different age and sex classes of harbour seals (Phoca vitulina)." Canadian Journal of Zoology 80, no. 9 (2002): 1569–77. http://dx.doi.org/10.1139/z02-150.

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Classifying dives into two-dimensional shapes based on time and depth is an attempt to extract additional information about the behaviour of aquatic air-breathing predators. In some species, there is considerable circumstantial evidence that different dive shapes represent different behaviours. However, few studies have provided direct evidence of the relationship between dive shape and function. We classified over 283 000 dives of adults (31 males and 45 females) and suckling (13) and recently weaned (15) harbour seal (Phoca vitulina) pups into seven shapes using supervised discriminant funct

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ONISHI, Keiko, and Daisuke FUJITA. "Novel Tip Shape Reconstruction Method for Restoration of AFM Topography Images Using Nano-structures with Given Shapes." Analytical Sciences 27, no. 2 (2011): 157. http://dx.doi.org/10.2116/analsci.27.157.

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14

Wach, Johannes, Johannes Naegeli, Martin Vychopen, et al. "Impact of Shape Irregularity in Medial Sphenoid Wing Meningiomas on Postoperative Cranial Nerve Functioning, Proliferation, and Progression-Free Survival." Cancers 15, no. 12 (2023): 3096. http://dx.doi.org/10.3390/cancers15123096.

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Medial sphenoid wing meningiomas (MSWM) are surgically challenging skull base tumors. Irregular tumor shapes are thought to be linked to histopathology. The present study aims to investigate the impact of tumor shape on postoperative functioning, progression-free survival, and neuropathology. This monocentric study included 74 patients who underwent surgery for primary sporadic MSWM (WHO grades 1 and 2) between 2010 and 2021. Furthermore, a systematic review of the literature regarding meningioma shape and the MIB-1 index was performed. Irregular MSWM shapes were identified in 31 patients (41.

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Milenkovic, Jovana, Milica Vasiljevic, Nemanja Jovicic, Dragan Milovanovic, Dragica Selakovic, and Gvozden Rosic. "Criteria for the Classification of the Interradicular Septum Shape in Maxillary Molars with Clinical Importance for Prosthetic-Driven Immediate Implant Placement." Diagnostics 12, no. 6 (2022): 1432. http://dx.doi.org/10.3390/diagnostics12061432.

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The aim of this study was to use cone-beam computed tomography (CBCT) to evaluate the morphometric properties of the interradicular septum (IRS) in the maxillary molar region that may be indicative for prosthetic-driven implant placement. Following the repetitive algorithm based on the visual identification of IRS shapes, we described the following IRS shapes: arrow, boat, drop, and palatal and buccal convergence. The incidence of IRS shapes showed significant differences for the first and second maxillary molars (the highest frequency for the arrow shape, and the lowest for the drop shape) wi

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16

Berends, Manetta, and Femke Snelting. "Tools shape practice shapes tools..." Teknokultura. Revista de Cultura Digital y Movimientos Sociales Avance en línea (November 14, 2024): 1–17. http://dx.doi.org/10.5209/tekn.95105.

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This article narrates a partial history of two decades of doing graphic design with free, libre and open-source tools. We follow the development of tools and practices that allowed graphic design practice to shift, such as layouts being generated by scripts, books being rendered out of webpages and editorial workflows being transformed into collaborative environments. It threads through a body of shared knowledge and modes of designing with software, focusing on sites that are key in these design practices: layout tools, open fonts and publishing platforms. As practitioners and active particip

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Raval, P. B., A. M. Butala, and N. S. Mehta. "Behavior study of precast pier of bridge for its various shape." IOP Conference Series: Earth and Environmental Science 1326, no. 1 (2024): 012012. http://dx.doi.org/10.1088/1755-1315/1326/1/012012.

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Abstract This study presents the analysis and design of precast pier as per Indian standard codes. The analysis and design of pier is carried out by considering various loads as per Indian standers and IRC codes. The design of precast pier is carried out using the STAAD. Pro software. To study the effect of water pressure on precast pier various shapes of pier are considered like rectangular, circular, pier with triangular cut, pier with arch. The comparison of dis-placement, stresses, strength, and stiffness of different shapes are analysed to evaluate the behaviour of pier. The design of con

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BANERJEE, MOLOY K., DEBABRATA NAG, RANJAN GANGULY, and AMITAVA DATTA. "HEMODYNAMICS IN STENOSED ARTERIES — EFFECTS OF STENOSIS SHAPES." International Journal of Computational Methods 07, no. 03 (2010): 397–419. http://dx.doi.org/10.1142/s021987621000226x.

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A numerical analysis has been carried out to investigate the hemodynamic flow through stenosed arteries having mild (S = 25%) to severe (S = 65%) occlusions and under different regimes of flow Reynolds numbers ( Re ) ranging from 50 to 400. Influence of different stenosis shapes (rectangular, trapezoidal, cosine, and Gaussian) on key hemodynamic parameters e.g., recirculation length, wall shear stress (WSS), pressure drop, and irreversible pressure loss coefficient (C I ) are studied. It has been observed that for S = 25%, no flow separation takes place with cosine and Gaussian shaped stenoses

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19

Ahn, Hee-Ju, Soo-Hwan Byun, Sung-Ah Che, et al. "Morphological Analysis of the Anatomical Mandibular Lingual Concavity Using Cone Beam Computed Tomography Scans in East Asian Population—A Retrospective Study." Diagnostics 14, no. 16 (2024): 1792. http://dx.doi.org/10.3390/diagnostics14161792.

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The rising demand for dental implants necessitates addressing anatomical challenges, particularly the shape of the mandible. Incorrectly angling implants can cause lingual perforations, risking damage to the inferior alveolar artery and nerve. This study analyzed 96 cone-beam computed tomography images from individuals aged 20 to 70 (8 males and 8 females) to evaluate mandibular anatomy in four areas: left and right sides and the first and second molars. Mandibular shapes were classified into U, C, and P types. U-shaped mandibles, with a wider crest width, pose the highest risk of lingual perf

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Lavrova, Olga, Viktor Polevikov, and Lutz Tobiska. "NUMERICAL STUDY OF THE ROSENSWEIG INSTABILITY IN A MAGNETIC FLUID SUBJECT TO DIFFUSION OF MAGNETIC PARTICLES." Mathematical Modelling and Analysis 15, no. 2 (2010): 223–33. http://dx.doi.org/10.3846/1392-6292.2010.15.223-233.

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The present study is devoted to the classical problem on stability of a magnetic fluid layer under the influence of gravity and a uniform magnetic field. A periodical peak‐shaped stable structure is formed on the fluid surface when the applied magnetic field exceeds a critical value. The mathematical model describes a single peak in the pattern assuming axial symmetry of the peak shape. The field configuration in the whole space, the magnetic particle concentration inside the fluid and the free surface structure are unknown quantities in this model. The unknown free surface is treated explicit

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Chung, Keunuk, Yeonghoon Lee, and Jinwook Lee. "The Analysis of Stiffness and Driving Stability in Cross-Member Reinforcements Based on the Curvature of a Small SUV Rear Torsion Beam Suspension System." Applied Sciences 13, no. 21 (2023): 12067. http://dx.doi.org/10.3390/app132112067.

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Most small SUVs in the automotive market are equipped with torsion beam suspension for the rear wheels. Torsion beam suspension consists of a cross-member and a trailing arm. The cross-member plays a crucial role in preventing the vehicle from twisting; therefore, a shape that can withstand loads is essential. In this study, various shapes of cross-member reinforcements were added to the existing torsion beam suspension to analyze its structural strength when subjected to arbitrary forces. Analysis results were obtained for stiffness and driving stability factors such as smooth road shake, imp

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Karpouzian, G., G. Spedding, and H. K. Cheng. "Lunate-tail swimming propulsion. Part 2. Performance analysis." Journal of Fluid Mechanics 210 (January 1990): 329–51. http://dx.doi.org/10.1017/s0022112090001318.

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The theory of an oscillating, high-aspect-ratio, lifting surface with a curved centreline (Cheng & Murillo 1984) is applied to a performance analysis of lunate-tail swimming propulsion. Thrust, power and propulsive efficiency are calculated for model lunate tails with various combinations of mode shapes and morphological features to ascertain the viability of the proportional-feathering concept, and to determine the influence of sweep and centreline curvature. One of the principal conclusions concerns the interchangeability of the heaving amplitude of the peduncle (identified with the majo

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Inkpen, Rob, and Kevin Hall. "Universal Shapes? Analysis of the Shape of Antarctic Tafoni." Geosciences 9, no. 4 (2019): 154. http://dx.doi.org/10.3390/geosciences9040154.

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Using dimensional data from over 700 tafoni in Antarctica, this paper identifies how the dimensionless ratios of width/length (W/L) and depth/length (D/L) vary with tafoni length. The analysis suggests that these ratios do tend to converge to values that are similar to those found for fragments produced by brittle fracture and fragmentation. Dividing the data into quintiles and deciles, it is possible to assess how tafoni size and shape change as tafoni length increases. Smaller tafoni do tend to have a rounder plan form which rapidly changes as tafoni length increases towards the W/L ratio of

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Ma, Wen Yu, Jian Wei Yang, Ye Yao, Yong Qiang Zhang, and Jun Zhang. "The Analysis on the Stamping Formability of High Strength Steel." Key Engineering Materials 885 (May 2021): 3–9. http://dx.doi.org/10.4028/www.scientific.net/kem.885.3.

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Recently the high strength steel has been applied in the automotive more and more widely. In this study, the effect of blank shape on the formability of an automotive part was analyzed. The three kinds of blank shapes were chosen, including a rectangular shaped blank, a blank with two corners cut straightly and a blank with two corners cut in curve. The effect of the variable blank holder force on the formability was studied. The four kinds of variable blank holder force were applied. The blank shape in this part is the blank with two corners cut curve. The results show that the blank with two

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Gheta, Siprianus, Agustina Mei, and Agnes Pendy. "EKSPLORASI KONSEP-KONSEP ETNOMATEMATIKA PADA RUMAH ADAT “KEDA NUA PU’U NIDA” DESA WATUNGGERE." JUPIKA: JURNAL PENDIDIKAN MATEMATIKA 4, no. 2 (2021): 152–61. http://dx.doi.org/10.37478/jupika.v4i2.1191.

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The objectives of this research are 1). to find out a brief history of the Keda Nua Pu'u Nida traditional house; 2). To explore the ethnomathematical concepts contained in the Nua Pu'u Nida Traditional House. This type of research is exploratory research using an ethnographic approach with taxonomic analysis. The subjects in this study were four people and the researchers themselves. The instruments used are observation sheets, interview guidelines, and documentation. Data analysis used is a triangulation of data sources from researchers, namely by means of documentation and observation and is

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Lyakh, Anton M. "A cluster analysis of some shapes of diatom valves." Issues of modern algology (Вопросы современной альгологии), no. 2(32) (2023): 185–88. http://dx.doi.org/10.33624/2311-0147-2022-2(32)-185-188.

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The results of the application of a cluster analysis to the shapes of some diatom valves are presented in the paper. The cluster analysis uses numeric descriptors of the shapes. To get such descriptors, the outlines of shapes have been transformed to the sequences of normalized and coordinated coefficients of elliptic Fourier transform. The coefficients have been used to construct shape dendrograms with the help of thee variants of hierarchical cluster analysis. The dendrograms have been truncated at the level of 6, 10 and 20 clusters. From the obtained clusters the stable groups of shapes, th

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Najmin M. "Morphometric Study of Shape of Glenoid cavity of Scapulae." Journal of Sylhet Women’s Medical College 15, Number 1 (2025): 22–25. https://doi.org/10.47648/jswmc2025v15-01-114.

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Background: The glenoid cavity of the scapula is crucial for shoulder joint stability, forming the articulation with the humeral head. Variations in its shape and size can influence joint mechanics, affecting shoulder stability and the risk of injuries like dislocations. Understanding these variations is important for orthopedic procedures, such as shoulder arthroplasty, and in diagnosing shoulder pathologies. The cavity typically appears in shapes like oval, pear-shaped, or inverted comma, with variations across different populations. Objective: To evaluate the morphometric characteristics of

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Wang, Xinman, Baoqi Che, and Rong Zhu. "Eye-Tracking and Psychological Analysis: The Impact of Building Shape on Visitor Visual Preference." Buildings 14, no. 9 (2024): 2733. http://dx.doi.org/10.3390/buildings14092733.

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Garden buildings not only enhance the aesthetics of gardens but also affect the visual and psychological experience of visitors. However, existing studies lack a systematic analysis of the shape types and combination patterns of buildings, which indirectly affects the overall experience of visitors. This study explores the attractiveness of different forms, styles, and combinations of buildings to visitors through oculometry and psychological analysis. The results of the study show that buildings are always the main focus of visitors’ sight in the garden, and traditional buildings can stimulat

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Asha, K. N., and Neetu Srivastava. "Analysis of Copper nanoparticle suspension in a stenosed non-permeable vasculature in presence of magnetic field." Journal of Physics: Conference Series 2332, no. 1 (2022): 012012. http://dx.doi.org/10.1088/1742-6596/2332/1/012012.

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Abstract In the present article, impact of shape of Copper nanoparticle with water as base fluid on the fluid flow criteria in the congested non-permeable arteries is analyzed under the magnetic effect. Mathematically, a significant response is recorded when various shapes of nanoparticles are considered in the stenosed vasculature. To explore the effect of different shaped nanoparticles, extensive range of nanofluid volume fractions, magnetic parameters and shape factors of nanoparticle is utilized. The significant parameters are solved using analytical method as well as analyzed using the gr

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Eghwerido, Joseph Thomas. "The alpha power Teissier distribution and its applications." Afrika Statistika 16, no. 2 (2021): 2733–47. http://dx.doi.org/10.16929/as/2021.2733.181.

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Statistical distribution that represents the true characteristics of real-life data is paramount to data analysis. Thus, this study introduces a tractable alpha power Teissier distribution (APOT). Some statistical properties of the proposed model like moments, probability generating function, moment generating function and order statistic were examined. The shape of the hazard rate and survival functions were investigated. The shapes of the hazard rate function indicated increasing, decreasing, J-shaped and bathtub shapes. The results of the data analysis indicated that the APOT model performe

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Shim, H. B., and K. C. Son. "Optimal Blank Design for the Drawings of Arbitrary Shapes by the Sensitivity Method." Journal of Engineering Materials and Technology 123, no. 4 (2000): 468–75. http://dx.doi.org/10.1115/1.1398082.

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The sensitivity method is employed in this work in order to find initial blank shapes which result in desired shapes after deformation. By assuming the final deformation shape be the drawn cup with uniform trimming allowance at the flange, the corresponding initial blank which gives the desired final shape after deformation has been found. With the aid of a well-known dynamic explicit analysis code PAM-STAMP, shape sensitivity has been obtained. To get the shape sensitivity numerically, a couple of deformation processes have been analyzed. Drawings of trapezoidal cup, oil pan, and Audi front d

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Shinde, Amol Ashok, Mili Kanungo, and Dinesh K. Patel. "An Analysis of Simian Sulcus and Calcarine Fissure Morphometry." National Journal of Clinical Anatomy 14, no. 1 (2025): 31–34. https://doi.org/10.4103/njca.njca_184_24.

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Abstract Background: Restoration of vision for blind by use of cortical visual prosthesis (CVP) is a new path-breaking finding. The striate cortex lodges calcarine fissure and simian sulcus. Brodmann’s area 17, 18, and 19 are the visual areas. Variations are seen in symmetry and sexual dimorphism of striate cortex. Methodology: 50 hemispheres from formalin-embalmed cadavers used for 1st-year undergraduate teaching were used for observing types of calcarine fissure and simian sulcus. Results: Straight calcarine fissure, T-shaped calcarine fissure, and concave and straight vertical simian sulcus

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Kovács, Ágnes Éva, Zoltán Csernátony, Loránd Csámer, et al. "Comparative Analysis of Bone Ingrowth in 3D-Printed Titanium Lattice Structures with Different Patterns." Materials 16, no. 10 (2023): 3861. http://dx.doi.org/10.3390/ma16103861.

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In this study, metal 3D printing technology was used to create lattice-shaped test specimens of orthopedic implants to determine the effect of different lattice shapes on bone ingrowth. Six different lattice shapes were used: gyroid, cube, cylinder, tetrahedron, double pyramid, and Voronoi. The lattice-structured implants were produced from Ti6Al4V alloy using direct metal laser sintering 3D printing technology with an EOS M290 printer. The implants were implanted into the femoral condyles of sheep, and the animals were euthanized 8 and 12 weeks after surgery. To determine the degree of bone i

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Keith, Blake, Ferah Munshi, Alyson M. Brooks, et al. "A MARVEL-ous Study of How Well Galaxy Shapes Reflect Dark Matter Halo Shapes in Cold Dark Matter Simulations." Astrophysical Journal 986, no. 2 (2025): 138. https://doi.org/10.3847/1538-4357/add40d.

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Abstract We present a 3D shape analysis of both dark matter (DM) and stellar matter (SM) in simulated dwarf galaxies to determine whether stellar shape traces DM shape. Using 80 central and satellite dwarf galaxies from three simulation suites (“Marvelous Massive Dwarfs,” “Marvelous Dwarfs,” and the “DC Justice League”) spanning stellar masses of 106–1010 M ⊙, we measure 3D shapes through the moment of inertia tensor at twice the effective radius to derive axis ratios (C/A and B/A) and triaxiality. We find that stellar shape does follow DM halo shape for our dwarf galaxies. However, the presen

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CHANG, CHIN-CHEN, YAW-WEN CHEN, and DANIEL JAMES BUEHRER. "A TWO-DIMENSIONAL SHAPE RECOGNITION SCHEME BASED ON PRINCIPAL COMPONENT ANALYSIS." International Journal of Pattern Recognition and Artificial Intelligence 08, no. 04 (1994): 859–75. http://dx.doi.org/10.1142/s0218001494000449.

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In this paper, we propose a simple, but efficient method to recognize two-dimensional shapes without regard to their translation, rotation, and scaling factors. In our scheme, we use all of the boundary points to calculate the first principal component, which is the first shape feature. Next, by dividing the boundary points into groups by projecting them onto the first principal component, each shape is partitioned into several blocks. These blocks are processed separately to produce the remaining shape features. In shape matching, we compare two shapes by calculating the difference between th

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Davidson, M. "Special relativity and the intrinsicality of shape." Analysis 74, no. 1 (2013): 57–58. http://dx.doi.org/10.1093/analys/ant100.

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J, Ravi Tej M., and Chidananda G. "A Comparative Study on Seismic Behaviour of Plan Irregular Buildings." International Journal for Research in Applied Science and Engineering Technology 12, no. 10 (2024): 1061–71. http://dx.doi.org/10.22214/ijraset.2024.64804.

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Abstract: Asymmetrical plan irregularities occur when the horizontal layout of a building is non uniform or unsymmetrical in one or more axes. These irregularities may arise from variations in building shape, size, or configuration, leading to nonuniform distribution of mass, stiffness, or load paths throughout the structure. Considering equivalent static analysis (ESA) and response spectrum analysis (RSA) as per IS 1893-Part 1 (2016) considering seismic zones III, structure with square shaped plan performs better than the other shaped models (viz. T, L, H and Plus shapes) with least values of

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Li, Peng, Brian Corner, and Steven Paquette. "Shape analysis of female torsos based on discrete cosine transform." International Journal of Clothing Science and Technology 27, no. 5 (2015): 677–91. http://dx.doi.org/10.1108/ijcst-03-2014-0035.

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Purpose – The purpose of this paper is to present results of shape analysis of female torso shape using the discrete cosine transform (DCT) from a three-dimensional (3D) whole body scan database. Design/methodology/approach – Torso shape is a central part of body shape and difficult to describe by linear measurements. In order to analyze body shape variation within a population the authors employed a DCT-based shape description method to compresses a dense 3D body scan surface into a small vector that preserves shape and removes size. The DCT-based shape descriptors of torso surfaces are furth

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Attard, Marie R. G., Emma Sherratt, Paul McDonald, Iain Young, Marta Vidal-García, and Stephen Wroe. "A new, three-dimensional geometric morphometric approach to assess egg shape." PeerJ 6 (June 27, 2018): e5052. http://dx.doi.org/10.7717/peerj.5052.

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This paper proposes a new methodology to quantify patterns of egg shape variation using geometric morphometrics of three-dimensional landmarks captured on digitally reconstructed eggshells and demonstrates its performance in capturing shape variation at multiple biological levels. This methodology offers unique benefits to complement established linear measurement or two-dimensional (2D) contour profiling techniques by (i) providing a more precise representation of eggshell curvature by accounting for variation across the entire surface of the egg; (ii) avoids the occurrence of correlations fr

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Covantev, Serghei, Rasul Uzdenov, Daria Turovets, and Olga Belic. "Spleen: an organ of multiple shapes." Iberoamerican Journal of Medicine 3, no. 4 (2021): 326–31. http://dx.doi.org/10.53986/ibjm.2021.0052.

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Introduction: The spleen is located in the upper part of the abdominal cavity. As an organ, the spleen can have various shapes and size. Material and methods: The human spleen was studied in 273 cadavers (154 men and 119 women) who did not have diseases of the spleen. The shape of the spleen was analyzed based on splenic index, Michels classification. Results: The most common shape of the spleen in men is the elongated one. It was encountered in 79 (51.3%) cases out of 154. In women, the most common shape was the intermediate. It was encountered in 51 (42.9%) of the 119 cases. Based on Michels

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Percival, Sarah, Joyce G. Onyenedum, Daniel H. Chitwood, and Aman Y. Husbands. "Topological data analysis reveals core heteroblastic and ontogenetic programs embedded in leaves of grapevine (Vitaceae) and maracuyá (Passifloraceae)." PLOS Computational Biology 20, no. 2 (2024): e1011845. http://dx.doi.org/10.1371/journal.pcbi.1011845.

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Leaves are often described in language that evokes a single shape. However, embedded in that descriptor is a multitude of latent shapes arising from evolutionary, developmental, environmental, and other effects. These confounded effects manifest at distinct developmental time points and evolve at different tempos. Here, revisiting datasets comprised of thousands of leaves of vining grapevine (Vitaceae) and maracuyá (Passifloraceae) species, we apply a technique from the mathematical field of topological data analysis to comparatively visualize the structure of heteroblastic and ontogenetic eff

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Jalaal, Maziyar, Dave Kemper, and Detlef Lohse. "Viscoplastic water entry." Journal of Fluid Mechanics 864 (February 11, 2019): 596–613. http://dx.doi.org/10.1017/jfm.2019.32.

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The impact of viscoplastic droplets on a free surface of water is studied. The droplet undergoes an elasto-plastic deformation at the early stages of water entry. At large time, the yield stress dominates; therefore, the droplet solidifies and reaches an equilibrium shape. Depending on the impact velocity and the rheology of the droplet, the final morphologies vary from pear-shaped to capsules that contain bubbles. We perform an analysis of the orders of magnitude of the forces and introduce the relevant dimensionless groups. Furthermore, we categorize the final shapes in a phase diagram and a

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Zhao, Mengmeng. "Analysis on the Shape and Pattern Art of the Baby Bibs in the Republic of China Period (1912–1949)." Fibres & Textiles in Eastern Europe 32, no. 3 (2024): 29–39. http://dx.doi.org/10.2478/ftee-2024-0022.

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Abstract Baby bib is a popular clothing accessory during the Republic of China period. This article takes baby bibs in this period as a case to analyze their style and pattern characteristics. Results showed that the baby bib shapes can be classified into three types, including geometric shape, plant shape and animal or children shape. Geometric shaped bibs account for the largest proportion due to their relatively simple craftsmanship. The embroidery patterns of the bibs include plants, animals and human related items, with peony and butterfly being the mostly used patterns. Among the bibs, 4

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Zhang, Jie, Gerileqimuge, Run Xie, Yanming Song, and Quanzhao Sun. "RCS Computation and Analysis of a Diamond-shaped Thermal Jacket for Gun Barrels." Journal of Physics: Conference Series 2478, no. 2 (2023): 022001. http://dx.doi.org/10.1088/1742-6596/2478/2/022001.

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Abstract A research on RCS simulations and analysis of a diamond-shaped thermal jacket was carried out, to make thermal jackets on tanks less detectable to known radar observation methods. Based on the principles of radar stealth technology, a diamond-shaped thermal jacket was modeled. The RCS simulation models were established by employing the physical optics method (PO), the monostatic RCS characteristics of the diamond-shaped thermal jacket at high frequency region was investigated, and the major components affecting the radar scattering characteristics were evaluated. The original end part

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Kim, Young-Chan, Seyed Javad Mortazavi, Alireza Farzampour, Jong-Wan Hu, Iman Mansouri, and Paul Oluwaseun Awoyera. "Optimization of the Curved Metal Damper to Improve Structural Energy Dissipation Capacity." Buildings 12, no. 1 (2022): 67. http://dx.doi.org/10.3390/buildings12010067.

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Structural curved metal dampers are implemented in various applications to mitigate the damages at a specific area efficiently. A stable and saturated hysteretic behavior for the in-plane direction is dependent on the shape of a curved-shaped damper. However, it has been experimentally shown that the hysteretic behavior in the conventional curved-shaped damper is unstable, mainly as a result of bi-directional deformations. Therefore, it is necessary to conduct shape optimization for curved dampers to enhance their hysteretic behavior and energy dissipation capability. In this study, the finite

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Kim, Soyeon, Dai-Soon Kwak, and In-Beom Kim. "Morphometric Analysis and Classification of the Cross-Sectional Shape of the C2 Lamina." BioMed Research International 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/7276946.

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A thorough understanding of the morphology of the lamina of the second cervical vertebra (C2) is important for safe C2 translaminar screw placement. Although anatomical characteristics of the C2 lamina have been widely documented, individual differences in morphology have not been addressed. The aim of this study was to morphometrically analyze the cross-sectional shape of the C2 lamina and classify the shape to describe individual differences. Morphometric analysis was conducted on 145 three-dimensional C2 models based on computerized tomography images from Korean adult cadavers. Several para

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Azis, Andy, Alchalil Alchalil, Adi Setiawan, and Nurul Islami. "STUDI EKSPERIMENTAL WIND TUNNEL TIPE SUBSONIC RANGKAIAN TERBUKA DENGAN VARIASI BENTUK HONYECOMB." Malikussaleh Journal of Mechanical Science and Technology 7, no. 2 (2023): 105. http://dx.doi.org/10.29103/mjmst.v7i2.13491.

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Honeycomb is applied to the Open Series Subsonic Wind Tunnel which aims to obtain a unidirectional fluid flow shape with uniform (laminar) and stable fluid flow velocities. Honeycomb testing was carried out experimentally at a flow velocity of 3 m / s without honeycomb using a variety of shapes: hexagonal, square, and circular. Each honeycomb shaped to 8mm diameter. The results of the analysis on honeycomb testing with variations in shape obtained the value of turbulence intensity that occurs in the test section, namely for hexagonal shape variations the flow that occurs is better than circula

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Kim, Mijin, Sukyoung Yun, and Taegwon Chang. "An Analysis of Preference for Potted Houseplant Products Using a Conjoint Analysis Method for the Development of Pet Plant Products." Journal of People, Plants, and Environment 26, no. 4 (2023): 283–94. http://dx.doi.org/10.11628/ksppe.2023.26.4.283.

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Background and objective: Recently, social interest in indoor plants (houseplants) has been increasing. This study was conducted to determine consumer preferences for houseplants by surveying their perception of houseplants, also referred to as “pet plants” using a conjoint analysis method.Methods: For the conjoint analysis, Attribute 1 was defined as the type of houseplants, which was divided into four levels: orchids, oriental orchids, general foliage plants, and variegated foliage plants. Attribute 2 was set as the shape of pots and was classified into two levels: square and round. Attribut

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Klassen, E., A. Srivastava, W. Mio, and S. H. Joshi. "Analysis of planar shapes using geodesic paths on shape spaces." IEEE Transactions on Pattern Analysis and Machine Intelligence 26, no. 3 (2004): 372–83. http://dx.doi.org/10.1109/tpami.2004.1262333.

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Milanovic, Pavle, Dragica Selakovic, Milica Vasiljevic, et al. "Morphological Characteristics of the Nasopalatine Canal and the Relationship with the Anterior Maxillary Bone—A Cone Beam Computed Tomography Study." Diagnostics 11, no. 5 (2021): 915. http://dx.doi.org/10.3390/diagnostics11050915.

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The aim of this study was to evaluate the interconnection between the type of nasopalatine canal (NPC) and morphometric characteristics of the anterior maxilla. The investigation involved 113 subjects, and the morphometric parameters were obtained using cone beam computed tomography (CBCT). NPC shapes were classified into four types: banana-, hourglass-, cylindrical-, and funnel-shaped (distribution of approximately 9, 25, 31, and 35%, respectively). The analysis revealed that the NPC shape was significantly connected with the morphometric properties of anterior maxilla horizontal dimensions.

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