Showing 61 - 80 results of 81 for search '"Ellipse"', query time: 0.03s Refine Results
  1. 61

    Automated Web Tool Measurement of Total Hip Arthroplasty Acetabular Component Inclination and Anteversion Angles by Christine Yoon, BS, Anna Eligulashvili, BS, Zeynep Seref-Ferlengez, PhD, Barlas Goker, MD, Eli Kamara, MD, Edward Mardakhaev, MD

    Published 2025-02-01
    “…The mean difference of average for abduction angle, anteversion angle, and ratio between the short axis of the transverse ellipse to the total length of the acetabular cup were −0.28, 0.39, and 0.02, respectively. …”
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  2. 62

    Development of a Mobile Laser Measurement System for Subway Tunnel Deformation Detection by Wei Li, Haoran Duan, Qiuzhao Zhang, Jiahui Liang, Wei Duan, Kaikun Zhang, Wenda Wang, Huachao Yang

    Published 2025-01-01
    “…Disturbed points are systematically identified and eliminated, while the convergence of tunnel sections and inter-ring misalignment are evaluated through ellipse fitting. Furthermore, to address encroachments upon tunnel locomotive limits, encroachment points and associated information are identified using the ray method. …”
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  3. 63

    Comparative study of Baduanjin and brisk walking on balance and stability in older adults by Ya-Guang Yu, Jun Zhang, Lin Wang, Dai-Feng Yu, Gong-Bing Shan, Xiao Fu

    Published 2025-03-01
    “…Results: (1) For the eyes-open two-legged standing posture, the center of pressure (COP) was more centralized in the Baduanjin group; the swaying range of the body, forward and backward displacement, and left and right displacement among the elderly individuals in this group were significantly lower than those of the other two groups. (2) In the tests for two-legged standing, one-legged standing, and tandem feet stance, the elderly in the Baduanjin group had significantly lower swaying trajectory of the center of gravity, body swaying ellipse area, and maximum vibration parameters than those in the brisk walking and control groups. (3) The 2nd pose of Baduanjin, which involves a considerable amount of knee bending and semi-squatting exercises for the lower limbs, proved to be beneficial for the lower limb joints and body balance among the elderly. …”
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  4. 64

    Inguinal Lymph Node Dissection for Advanced Stages of Plantar Melanoma in a Low-Income Country by Ollo Roland Somé, Malick Diallo, Damien Konkobo, Nassirou Yabré, Valentin Konségré, Issouf Konaté, Sidy Ka

    Published 2020-01-01
    “…It was performed through an S-shaped (n = 11) or ellipse-shaped skin incision (n = 11). The tumors were AJCC stage III (n = 18) and IV (n = 2). …”
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  5. 65

    A green-Ampt model considering unsaturated zone and pore air pressure by Youliang Peng, Liangjun Fei, Fangyuan Shen, Runqiao Zheng, Qian Wang, Qianwen Fan

    Published 2025-03-01
    “…In comparison to the measured values, the accuracy of the infiltration amount that was calculated by the combination model was the highest, followed by the ellipse model and the original model was the worst. …”
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  6. 66

    Closing the gap while standing still: clinimetric properties of a low-cost balance platform and a user-friendly app for posturography by Tom Vredeveld, John F. Stins, Annelies J. van Vliet, Vincent C.M. Tuinder, Stephan P.J. Ramaekers, Michel W. Coppieters, Annelies L. Pool-Goudzwaard

    Published 2025-02-01
    “…Parameters based on COP displacement were calculated, including standard deviation of displacement, velocity, pathlength and 95% predicted ellipse area. Results The concurrent validity of the WBB to measure COP in quiet standing still tasks was excellent for all parameters (Intraclass Correlation Coefficient (ICC) > 0.900, p < 0.001), apart from medio-lateral velocity (ICC = 0.571, p = 0.090 to ICC = 0.711, p = 0.057). …”
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  7. 67

    Optimization of Key Parameters for Coal Seam L-CO<sub>2</sub> Phase Transition Blasting Based on Response Surface Methodology by Xuanping Gong, Xiaoyu Cheng, Cheng Cheng, Quangui Li, Jizhao Xu, Yu Wang

    Published 2025-01-01
    “…This caused the aspect ratio of the external ellipse of the explosion fracture zone to range between 1.00 and 1.72. …”
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  8. 68

    Assessment of photoreceptor recovery and visual function utilizing adaptive optics and microperimetry in patients with surgically closed macular holes by Yuanyuan Liu, Xueli Yang, Wei Zhou, Jinguo Yu, Song Chen, Tiangeng He, Caiyun You, Xiangda Meng, Mengyu Liao, Yi Lei, Hua Yan

    Published 2025-02-01
    “…Visual and structural outcomes were monitored 3 months to 2 years postoperatively: best-corrected visual acuity (BCVA), MH diameter and duration, optical coherence tomography (OCT) images, 4° retinal mean sensitivity (RMS), fixation rates, 68.2 % BCEA (binary contour ellipse area) of microperimetry, and cone density as measured by AOSLO. …”
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  9. 69

    Entretien avec Yvette Dewolf by Etienne Cossart

    Published 2009-06-01
    “…L’entretien porte sur l’ouvrage d’Yvette Dewolf et Guilhem Bourrié, Les formations superficielles, Genèse, Typologie, Classification, Paysages et environnements, Ressources et risques. Paris, Ellipses, 2008, 798 p.…”
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  10. 70

    Geometric Characterization of the Numerical Range of Parallel Sum of Two Orthogonal Projections by Weiyan Yu, Ran Wang, Chen Zhang

    Published 2024-01-01
    “…Our goal in this article is to describe the closure of numerical range of parallel sum operator P:PQ for two orthogonal projections P and Q in BH as a closed convex hull of some explicit ellipses parameterized by points in the spectrum.…”
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  11. 71

    Is the Best Fitting Curve Always Unique? by N. Chernov, Q. Huang, H. Ma

    Published 2013-01-01
    “…Fitting straight lines and simple curved objects (circles, ellipses, etc.) to observed data points is a basic task in computer vision and modern statistics (errors-in-variables regression). …”
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  12. 72

    Pour une méthode diaristique en anthropologie by Pierre Depardieu

    Published 2024-12-01
    “…After having established a basic opposition between diary and narrative, as well as a few methodological elements, one can observe several first-level phenomena in the material (namely ellipses, the interweaving of narrative threads, focus effects, the frailty of reported speech, the constant contextualization of facts, as well as the absence of closure mechanisms) that could inspire considerations on the status of diaries in anthropology and the possible benefits that could be expected from their use. …”
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  13. 73

    Co-convexial reflector curves with applications by Abdallah M. Al-Rashed, Neyamat Zaheer

    Published 1987-01-01
    “…The present study not only proves this conjecture and establishes the corresponding results on Stleltjes and Van Vleck polynomials in its full generality as proposed earlier by the authors, but it also furnishes a more general family of curves sharing the properties of confocal ellipses.…”
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  14. 74

    “On our way to dig up Dad’s empty coffin” by Caroline Magnin

    Published 2018-11-01
    “…It is named only with great difficulty, and hides behind blank pages, ellipses, and photographs which show without naming, and take over when language falls short. …”
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  15. 75

    La référence pronominale en français et en mandarin : une étude contrastive basée sur un corpus de traductions bidirectionnelles by Juan Sun, Qiang Zhang

    Published 2019-12-01
    “…In accordance with our expectations, it seems that French has a predilection for the use of pronominal references, whereas Mandarin is characterized by a high frequency of nominal repetitions and in particular of ellipses. This difference is in general linked to the specific features of the pronominal system in each of the two languages and explains to a large extent the striking contrast between the translation tendencies from French to Mandarin and from Mandarin to French.…”
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  16. 76

    Basin dependencies of tropical cyclone genesis environment and possible future changes revealed by machine learning methods by QiFeng Qian, YeFeng Chen, XiaoJing Jia, Hao Ma, Wei Dong

    Published 2025-02-01
    “…This study uses principal-component analysis (PCA), confidence ellipses, and correlation circles to analyze TC genesis environments across ocean basins. …”
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  17. 77

    Phenotypic Variation in Freshwater Murrel, Channa punctatus (Bloch, 1793) from Northern and Eastern Regions of India Using Truss Analysis by Ankur Kashyap, Madhu Awasthi, Mohammad Serajuddin

    Published 2016-01-01
    “…PC 1 represented the variation due to size and PC 2 and PC 3 represented variations due to shape. The 95% confidence ellipses depicted the clear isolation between the samples in scatter graph of PC 1 on PC 2. …”
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  18. 78

    The Impact of Bar-induced Noncircular Motions on the Measurement of Galactic Rotation Curves by Jie Liu, Zhi Li, Juntai Shen

    Published 2025-01-01
    “…We use a simple “misaligned ellipses” model to qualitatively explain the general trend of RCs from the tilted-ring method (RC _tilted ) and the discrepancy between RC _tilted and RC _true . …”
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  19. 79

    Regional disparities and dynamic adaptation in the forest health-based industry and ecological environment: A case study of Fujian Province, China by Wenyu Chen, Shuhan Yu, Xuwang Jiang, Liyu Zhan

    Published 2025-01-01
    “…To conduct the analysis, we utilized various analytical tools, such as the entropy-weighted TOPSIS method, an adaptability evaluation model, standard deviation ellipses, and geographical detectors. This study examined the temporal and spatial evolution of the adaptability of the forest health-based industry and ecological environment in Fujian Province from 2013 to 2023. …”
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  20. 80

    Artificial neural network with incompressible smoothed particle hydrodynamics for exothermic chemical reaction on heat and mass transfer in a rectangular annulus by Alaa Allakany, Noura Alsedias, Abdelraheem M. Aly

    Published 2025-01-01
    “…The complex rectangular annulus contains two ellipses and two triangles on the walls’ vertical sides. …”
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