Showing 581 - 600 results of 806 for search '"curvature"', query time: 0.06s Refine Results
  1. 581

    Monitoring ocular disease via optical nanostructures potentially applicable to corneal contact lens products by Bader AlQattan, Mohamed Elsherif, Fahad Alam, Haider Butt

    Published 2024-06-01
    “…A spherical surface was also used to simulate the human eye, and application of a force (curvature change) caused the nanostructure spacing to change, influencing the visible color of the contact lenses. …”
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    Article
  2. 582

    Hydatid Cyst Diagnosed by Endoscopic Ultrasound by F. Castro-Poças, Tarcísio Araújo, André Coelho, Donzilia Silva, Isabel Pedroto

    Published 2016-01-01
    “…Upper endoscopy revealed a bulge in the lesser curvature and posterior wall of the stomach with 4-5 cm. …”
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  3. 583

    TOOTH ROOT BENDING STRESS CORRECTION ALGORITHM BASED ON VARIABLE PRESSURE ANGLE HOB (MT) by XIAO Teng, HE ZeYin, RAN XiongTao

    Published 2023-01-01
    “…An imaginary hob is introduced to meshing an equivalent spur gear, the equation of gear root transition curve is established based on conjugate meshing conditions, and the calculation method of curvature radius of any point of tooth root was given according to Euler-Savary formula. …”
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    Article
  4. 584

    Comparative Evaluation of Three File Systems for Shaping Curved Canals: An In Vitro Approach by Karuna R. Siraparapu, X. Nagamaheshwari, Veerendra S. Patil, Masuna Rukmini Amulya, Sainath Adsare, Karanam Apoorva Prakash

    Published 2024-12-01
    “…Flexer heat activation removed significantly more resin at the outer aspect of the maximum point of curvature. PTN and TruNatomy caused similar canal transportations. …”
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    Article
  5. 585

    Cellular electron tomography of the apical complex in the apicomplexan parasite Eimeria tenella shows a highly organised gateway for regulated secretion. by Alana Burrell, Virginia Marugan-Hernandez, Richard Wheeler, Flavia Moreira-Leite, David J P Ferguson, Fiona M Tomley, Sue Vaughan

    Published 2022-07-01
    “…Using a combination of cellular electron tomography and serial block face-scanning electron microscopy (SBF-SEM) we have reconstructed the entire apical end of Eimeria tenella sporozoites; we report a detailed dissection of the three- dimensional organisation of the conoid and show there is high curvature of the tubulin-containing fibres that might be linked to the unusual comma-shaped arrangement of protofilaments. …”
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    Article
  6. 586

    Effect of Cycloplegia on Keratometric and Biometric Parameters in Keratoconus by Nihat Polat, Abuzer Gunduz

    Published 2016-01-01
    “…Conclusions. Flattened corneal curvature and increase in ACD following cycloplegia in keratoconus patients were detected.…”
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  7. 587

    Factors Controlling the Hydraulic Fracture Trajectory in Unconventional Reservoirs by Peng Zheng, Erhu Liu, Desheng Zhou, Xinwei Du, Zhongjun Ma

    Published 2022-01-01
    “…Simulation results show that with increasing injection pressure, the radius of the fracture curvature increases. When the difference between the injection pressure and the maximum principal stress is 5 times the ground stress difference, the influence of in situ stress on hydraulic fracture deflection can be ignored. …”
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  8. 588

    Study on Temperature Rise Characteristics of Grease Lubricated Thrust Angular Contact Ball Bearings Under Complex Working Conditions by Shijie Wang, Pengchang Jiang, Feng Liu, Guixiu Luo, Zhanli Zhang

    Published 2022-08-01
    “…The results show that the established model can predict the temperature rise of bearing outer ring under complex working conditions well; the maximum error between the simulation results and the test results is 8.3%; the temperature rise rate of the outer ring of the bearing is faster within 20 minutes after the start of the bearing operation; the load, speed and ambient temperature increased will increase the temperature rise of the outer ring of the bearing; the number of steel balls and groove curvature radius coefficient increased will decrease the temperature rise of bearing outer ring. …”
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    Article
  9. 589

    Classification of Invoice Images By Using Convolutional Neural Networks by Sait Ali Uymaz, Ömer Arslan

    Published 2022-03-01
    “…Data preprocessing techniques such as correcting the curvature and aspect ratio of the invoices and image augmentation with variable brightness ratio were applied to create the data sets. …”
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    Article
  10. 590

    The Vertebral Column, Ribs, and Sternum of the African Giant Rat (Cricetomys gambianus Waterhouse) by Matthew Ayokunle Olude, Oluwaseun Ahmed Mustapha, Temitope Kehinde Ogunbunmi, James Olukayode Olopade

    Published 2013-01-01
    “…The lowest and highest points of the cervicothoracic curvature were at C5 and T2, respectively. The spinous process of the axis was the largest in the cervical group while others were sharp and pointed. …”
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  11. 591

    A Novel Cellular Handset Design for an Enhanced Antenna Performance and a Reduced SAR in the Human Head by Salah I. Al-Mously, Marai M. Abousetta

    Published 2008-01-01
    “…The proposed handset is based on a current commercially available bar-phone type with a curvature shape, keypad positioned above the screen, and top-mounted antenna. …”
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  12. 592

    Research on Ground Settlement Regularity of Soft Rock Tunnel under Ultrasmall Distance by Chunwu Zhang, Wei Hou, Zongjun Sun, Li Gu

    Published 2021-01-01
    “…After the reinforcement measures, the variation of the settlement groove width was not obvious but the curvature and peak value of the settlement groove is reduced significantly.…”
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  13. 593

    Afocal Mirror Systems with Small Axial Dimensions by N. K. Artioukhina, L. Peroza

    Published 2020-03-01
    “…A study was made of systems in which the diameter of the aperture diaphragm in the primary mirror is modified, which leads to a more compact system.A calculation algorithm of new the systems is proposed, with correction of the image curvature. A summary of formulas of the main parameters of the system is given, and various design solutions are calculated for angular field of view 2ω = 20ˈ and diameter of the entrance pupil D = 35 and D = 70 mm.Computer simulations were performed in the Opal, Zemax, and Code V software. …”
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  14. 594

    GIS-Based Identification and Analysis of Optimal Evacuation Areas and Routes in Flood-Prone Zones of Swabi District, Pakistan by Sareer Ahmad, Muhammad Waseem, Sadaquat Hussain, Mudassar Munir Shah, Fouzia Perveen Malik, Salman Masood, Megersa Kebede Leta

    Published 2024-01-01
    “…Additional factors such as curvature, normalized difference vegetation index (NDVI), topographic wetness index (TWI), land use and land cover (LULC), and soil type exhibit comparatively less impact on flooding. …”
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  15. 595

    Entropy optimized nanomaterial flow with Soret and Dufour impacts by Tasawar Hayat, Aimen Tahir, Aneeta Razaq, Sohail A. Khan

    Published 2025-03-01
    “…An opposite behaviors for entropy and Bejan number against curvature variable are witnessed. Thermal distribution increased for higher Eckert number.…”
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  16. 596

    Robotic Ultrasonic Measurement of Residual Stress in Complex Curved Surface Components by Qinxue Pan, Chang Shao, Dingguo Xiao, Ruipeng Pan, Xiaohao Liu, Wei Song

    Published 2019-01-01
    “…Considering the effect of curvature, the principle model of residual stress measuring by the critical refraction longitudinal wave is established. …”
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  17. 597

    Comparison of canal transportation and centering ability of three different endodontic rotary systems (an invitro study) by Shakhawan Kadir Kadir

    Published 2022-02-01
    “…Methods: Thirty simulated curved canals of 35° curvature manufactured in clear resin blocks were randomly assigned to 3 groups (n = 10) according to the system used for canal instrumentation: ProTaper next, two Shape and Pro Taper gold systems groups, Centering ability was evaluated; Pre‐and postoperative images of the canals were taken at a standardized position by a digital camera with a resolution of 25 mega pixel. …”
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  18. 598

    Site Selection of Landfill with emphasis on Hydrogeomorphological – environmental parameters Shahrood-Bastam watershed by Ahmad Reza Arabameri, Mohammad Hossein Ramesht

    Published 2016-12-01
    “…For this purpose, 12 data layers including Elevation, Stream density, Fault density, Habituate density, distance to road, plan curvature, lithology, slope, Temperature, soil, land use and distance to protected area extracted with Arc GIS 10.1 are prepared and one of MCDM methods which is Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) is implemented. …”
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  19. 599

    Integrating spatial clustering and multi-source geospatial data for comprehensive geological hazard modeling in Hunan Province by Weifeng Xiao, Ziyuan Zhou, Bozhi Ren, Xinping Deng

    Published 2025-01-01
    “…The key findings reveal that annual average precipitation (Pre), profile curvature (Pro_cur), and slope (Slo) are the primary factors influencing the composite geological hazard index (GI) across the province. …”
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  20. 600

    An Infrared and Visible Image Alignment Method Based on Gradient Distribution Properties and Scale-Invariant Features in Electric Power Scenes by Lin Zhu, Yuxing Mao, Chunxu Chen, Lanjia Ning

    Published 2025-01-01
    “…Second, the feature points in the edges are recognised by a curvature scale space (CSS) corner detector. Third, the Histogram of Orientation Gradients (HOG) is extracted as the gradient distribution characteristics of the feature points, which are normalised with the Scale Invariant Feature Transform (SIFT) algorithm to form feature descriptors. …”
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