Showing 621 - 640 results of 806 for search '"curvature"', query time: 0.05s Refine Results
  1. 621

    Motion Measurement and Analysis of Different Instruments for Single-Incision Laparoscopic Surgery by Kunyong Lyu, Lixiao Yang, Chengli Song

    Published 2022-01-01
    “…Working with precurved instruments seems like a compromise to traditional laparoscopic surgery if the transmission property, and shaft curvature of the instruments could be improved. An integrated mechanical platform or robotic system might be the ultimate solution for single-incision laparoscopic surgery to pursue even less trauma.…”
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  2. 622

    Cost-Effective Drone Survey of Areas with Elevated Background Radiation by Hédi Katreiner, Béla Kovács, Ákos Horváth, Szabolcs Tóth, Fanni Vörös

    Published 2024-12-01
    “…We convert these data into GIS-compatible formats and produce accurate isoline maps using the Minimum Curvature interpolation technique. The results show that while the radiation intensity decreases with height, the anomaly was visible but less detailed at all heights investigated. …”
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  3. 623

    A Star‐Nose‐Inspired Bionic Soft Robot for Nonvisual Spatial Detection and Reconstruction by Qiwei Shan, Yunqi Cao, Haozhen Chi, Shuyu Fan, Ziying Zhu, Dibo Hou

    Published 2025-01-01
    “…By implementing a constant curvature model for robot motion control, positional information is provided for the contact points between the cylindrical sensor array and the external environment. …”
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  4. 624

    Anterior Chamber Angle Shape Analysis and Classification of Glaucoma in SS-OCT Images by Soe Ni Ni, J. Tian, Pina Marziliano, Hong-Tym Wong

    Published 2014-01-01
    “…The angle structure configuration is quantified by the following six features: (1) mean of the continuous measurement of the angle opening distance; (2) area of the trapezoidal profile of the iridocorneal angle centered at Schwalbe's line; (3) mean of the iris curvature from the extracted iris image; (4) complex shape descriptor, fractal dimension, to quantify the complexity, or changes of iridocorneal angle; (5) ellipticity moment shape descriptor; and (6) triangularity moment shape descriptor. …”
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    Article
  5. 625

    Proximal Hypospadias Repair Outcomes in Patients with a Specific Disorder of Sexual Development Diagnosis by Blake W. Palmer, William Reiner, Brad P. Kropp

    Published 2012-01-01
    “…Such procedures are done to correct ventral curvature of the phallus, reposition a proximally located urethral meatus, and cosmetically correct the appearance of labioscrotal folds. …”
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  6. 626

    Engineering Characteristics and Reinforcement Approaches of Organic Sandy Soil by Jun Hu, Liang Jia, Wei Wang, Hong Wei, Juan Du

    Published 2018-01-01
    “…The experimental results showed that the coefficient of uniformity and coefficient of curvature were 2.07 and 1.25, respectively. The maximum dry density and optimum water content were 1.723 g/cm3 and 12.23%, respectively. …”
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  7. 627

    Motion Control of a 4WS4WD Path-Following Vehicle: Dynamics-Based Steering and Driving Models by Zhonghua Zhang, Caijin Yang, Weihua Zhang, Yanhai Xu, Yiqiang Peng, Maoru Chi

    Published 2021-01-01
    “…The vehicle path-following control is exhibited by dynamic simulation in CarSim with consideration of a complex vehicle model and a variable-curvature planned path. Numerical results obtained are analyzed and show control models have capable of dealing with a complex path-following problem. …”
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  8. 628

    Deficits in reaching movements under visual interference as a novel diagnostic marker for mild cognitive impairment by Ciro Rosario Ilardi, Giovanni Federico, Marco La Marra, Raffaella Amato, Alessandro Iavarone, Andrea Soricelli, Gabriella Santangelo, Sergio Chieffi

    Published 2025-01-01
    “…Also, our results suggest that trajectory curvature may discriminate between patients with MCI and healthy older adults. …”
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    Article
  9. 629

    Dynamic Response and Lubrication Performance of Spur Gear Pair Under Time-Varying Rotation Speeds by Jiaxing Pei, Yuanyuan Tian, Hongjuan Hou, Yourui Tao, Miaojie Wu, Zhigang Guan

    Published 2025-01-01
    “…The results reveal that the time-varying rotation speed induces chaotic motion of the gear system, resulting in significant changes in the dynamic meshing force, entrainment velocity, and curvature radius of the gear pair compared to those in constant-speed scenarios. …”
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  10. 630
  11. 631

    Denoising of Tourist Street Scene Image Based on ROF Model of Second-Order Partial Differential Equation by Xiaofeng Yang

    Published 2021-01-01
    “…By improving the diffusion coefficient and introducing a curvature operator that can distinguish details such as edges, it can effectively denoise the tourist street scene image, and it also has a good effect on avoiding the step effect. …”
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    Article
  12. 632

    A New Approach for Estimating Rock Discontinuity Trace Intensity Based on Rectangular Sampling Windows by Xiaoxue Huo, Qiong Wu, Huiming Tang, Zhen Meng, Di Wang, Yuxin Liu, Shiyu Li

    Published 2020-01-01
    “…Results indicate that the proposed new method based on rectangular windows shows close accuracy and less variability than that of the method based on circular windows due to the influence of finite sample size and the variability of location of the window and has advantage in application to sampling surfaces longer in one direction than in the other such as tunnel cross sections and curved sampling surfaces such as outcrops that show some curvature.…”
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  13. 633

    Mercury Intrusion Effects Modelled in Pores with Axial Symmetry and Attenuated Cross Section by Isaac Kornhauser, Carlos Felipe, Juan Marcos Esparza, Armando Domínguez, Fernando Rojas

    Published 2013-03-01
    “…One of them is the influence of the pore-wall angle of inclination on the intrusion pressure and meniscus radius of curvature. Another one is that Hg penetration in pores of this sort cannot proceed gradually but only in a jump-like manner. …”
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  14. 634

    Total Pancreatectomy for Malignant Intraductal Papillary Mucinous Neoplasm (IPMN) Complicated by Gastropancreatic Fistulae by Oshan Basnayake, Pradeep Wijerathne, Umesh Jayarajah, Nilesh Fernandopulle, Sivasuriya Sivaganesh

    Published 2020-01-01
    “…A passage of oral contrast was noted from the greater curvature and pylorus of the stomach into the dilated duct suggestive of fistulae formation. …”
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    Article
  15. 635

    Research on the Influence of Wheel Tread Wear on Pinion and Rack Contact State of Rack-rail Trains by Lei Huanhuan, Zhao Jiadong, Zhao Yukai, Shi Lubing, Li Zhiyuan, Yue Zihao

    Published 2024-04-01
    “…The greater the wear of the wheel tread is, the greater the contact stress near the meshing entry point of the rack and pinion will be; and the influence mechanism is that the radius of curvature of the drive gear near the meshing entry point is sharply reduced by wheel wear. …”
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  16. 636

    Fast Load Distribution Calculation for Cylindrical Gears with Non-Involute Tooth Profiles by Karsten Fetzer, Stefan Landler, Jonas-Frederick Berger, Michael Otto, Karsten Stahl

    Published 2024-12-01
    “…Special gearings with customized non-involute tooth profile geometries offer a promising alternative to conventional involute gears, addressing limitations, such as undercutting and small radii of curvature near the tooth root. However, the absence of standardized design procedures for non-involute gears, such as ISO 6336 for involute gears, often necessitates reliance on numerical simulations and methodologies using approximations. …”
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    Article
  17. 637

    Analytical forecasting of the optimal trajectory of mobile robot by A. A. Lobaty, D. V. Kapskiy, A. K. Ibrahim, I. A. Shishkovets

    Published 2022-06-01
    “…In this case, at each given point in space, the trajectory direction to the next point is taken into account, which ensures the optimal curvature of the trajectory at a given flight speed of the aircraft. …”
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  18. 638

    Taper Preparation Variability Compared to Current Taper Standards Using Computed Tomography by Richard Gergi, Joe Abou Rjeily, Nada Osta, Joseph Sader, Alfred Naaman

    Published 2012-01-01
    “…Methods. 60 root canals with severe angle of curvature (between 25∘ and 35∘) and short radius (𝑟<10 mm) were selected. …”
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  19. 639

    Local corner smoothing based on deep learning for CNC machine tools by Bai Jiang, Rong Sun, Ze-long Li, Liang Xu, Huang Liao, Xiao-yan Teng, Bing Li

    Published 2025-01-01
    “…To generate a smooth machining path, a new optimization strategy is proposed to optimize the toolpath at the curvature level. First, the three essential components of optimization are introduced, and the local corner smoothness is converted into an optimization problem. …”
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  20. 640

    Quantum gravitational corrections to the geometry of charged AdS black holes by Behnam Pourhassan, Ruben Campos Delgado, Sudhaker Upadhyay, Hoda Farahani, Himanshu Kumar

    Published 2025-03-01
    “…By employing the effective field theory framework for quantum gravity, we compute quantum corrections to the entropy of charged AdS black holes, focusing on second-order curvature terms. By incorporating scale-dependent coefficients, we establish that the Wald entropy is renormalization group (RG) invariant, confirming the robustness of the framework. …”
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    Article