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501
Special N-dimensional charged anti-de-Sitter black holes in f(Q) gravitational theory
Published 2025-02-01“…Furthermore, we demonstrate that the curvature singularities of these solutions are less severe than those in charged general relativity solutions. …”
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502
Acute Dilatation, Ischemia, and Necrosis of Stomach without Perforation
Published 2013-01-01“…Exploratory laparotomy revealed dilated stomach with patchy gangrene over lesser curvature and fundic area. About 4 litres of brownish fluid along with semisolid undigested food particles was sucked out (mainly undigested pieces of meat). …”
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503
Coexistence of Primary GEJ Adenocarcinoma and Pedunculated Gastric Gastrointestinal Stromal Tumor
Published 2018-01-01“…We report a 55-year-old gentleman presenting with a polyp at the GEJ and a synchronous, large, and pedunculated gastric mass at the greater curvature. Those were treated with a wedge resection of the gastric pedunculated mass with negative margins along with transgastric submucosal resection of the GEJ polyp. …”
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504
Variable mode-mixity during fatigue cycles – crack tip parameters determined from displacement fields measured by digital image correlation
Published 2017-07-01“…For each specific specimen the crack path was observed in order to relate its curvature – both kinks and continuously developing warped cracks – with the variations of the displacement field and associated stress intensity factors.…”
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505
Regular black holes from Kiselev anisotropic fluid
Published 2024-12-01“…Our analysis confirms that the curvature invariants associated with the regular black holes remain finite at the origin, indicating the absence of singularities. …”
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506
Bending Capacity of Concrete-Encased Underground Electrical Duct Banks under Monotonic Loading: An Experimental Study
Published 2021-01-01“…The threshold of the longitudinal curvature radius is determined to be 18000 m. Finally, the evolution trends of the stress and deformation rates of HDPE conduits are recommended for the monitoring indexes and control standards of electrical duct banks.…”
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507
High Accuracy 2D-DOA Estimation for Conformal Array Using PARAFAC
Published 2014-01-01“…Due to the polarization diversity (PD) of element patterns caused by the varying curvature of the conformal carrier, the conventional direction-of-arrival (DOA) estimation algorithms could not be applied to the conformal array. …”
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508
Analysis of Inherent Characteristics of Robot Joint Transmission System
Published 2022-10-01“…The results show that for the modal energy of the system, the total strain energy is the largest at the 15th natural frequency, the overall deformation of the system is the largest, the total kinetic energy is the largest at the 24th natural frequency, and the vibration of the system is the most intense at this natural frequency; the influence of system parameters on natural frequency is mainly reflected in that higher-order natural frequency is obviously affected; affected by the change of system stiffness, some natural frequency trajectory curves gradually approach, and will quickly separate with large curvature near a certain point, resulting in modal transition. …”
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509
Surface Plasmon Singularities
Published 2012-01-01“…In both cases the electromagnetic field has a slit-shaped curve as a boundary condition, and the singularities correspond to a shock wave that is a consequence of the curvature of the slit curve. As prototypes, we generate singularities that correspond to fold and cusped regions. …”
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510
Spinning bodies in general relativity from bosonic worldline oscillators
Published 2025-02-01“…Higher-spin Hamiltonians are classified to linear and quadratic order in curvature. Finally, perturbative computations at 1PM order for arbitrary powers and orientations of spin and at 2PM up to quartic spin order are performed, recovering results from the literature.…”
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511
A Study on the Negative Slope Mechanism of the Friction Torque Based on Viscoelastic Side Contact Model of Asperity
Published 2023-01-01“…The results show that when the axial pressure and the asperity dimensionless radius of curvature are reduced, the minimum value of the frictional torque variation rate (d<italic>T<sub>f </sub></italic>/d<italic>n</italic>) will increase and the amount of the frictional torque variation will decrease, which is beneficial to reduce the wear of friction pairs. …”
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512
Observed Steep and Shallow Spectra, Narrow and Broadband Spectra, Multifrequency Simultaneous Spectra, and Statistical Fringe Spectra in Fast Radio Bursts: Various Faces of Intrins...
Published 2025-01-01“…Through analysis, modelings, and simulations, we show that if the spectra of fast radio bursts (FRBs) are intrinsically quasi-periodic, and likely produced by coherent curvature radiation from quasi-periodic structured bunches, then the observed steep and shallow spectra, narrow and broadband spectra, multifrequency simultaneous spectra, as well as possible statistical fringe spectra in FRBs, could all be various manifestations of them. …”
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513
Automatic 4-mirrors system for alignment of high-power laser radiation
Published 2024-02-01“…The pointing accuracy was analyzed on the far-field sensor and equaled 15.34 µrad along the X axis and 12.03 µrad along the Y axis. The curvature of the wavefront was 0.06 µm.…”
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514
Geometrical deformation of brane matter field within f(R, Q, P) gravity
Published 2024-12-01“…In this work, we investigate a codimension-one thick brane within the framework of f(R, Q, P) gravity, where R represents the curvature scalar, while $$Q=R_{\mu \nu }R^{\mu \nu }$$ Q = R μ ν R μ ν and $$P=R_{\mu \nu \alpha \beta }R^{\mu \nu \alpha \beta }$$ P = R μ ν α β R μ ν α β are quadratic geometric invariants. …”
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515
The Mask of Odd Points n-Ary Interpolating Subdivision Scheme
Published 2012-01-01“…Furthermore, we present brief comparison of total absolute curvature of subdivision schemes having different arity with different complexity. …”
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516
Design Method for Twisting and Reducing Tooth Surfaces of Herringbone Gears for Form Grinding
Published 2024-03-01“…According to the meshing coordinate system of the shaping and grinding herringbone gear space, the contact line at multiple positions of the standard gear tooth surface, tooth surface twisting and tooth surface anti-twisting is solved, and the reverse distortion model of the tooth surface of the herringbone gear is established by calculating the curvature of the tooth surface method and the amount of spiral modification. …”
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517
Metachronous Liver Metastasis from Alpha-Fetoprotein-Producing Gastric Cancer Successfully Treated with Capecitabine/Oxaliplatin Combination Chemotherapy
Published 2022-01-01“…A 73-year-old man was referred for the surgical treatment of a type 2 gastric tumor that extended from the greater curvature of the gastric corpus to the pylorus. As no remote metastases were detected, the patient underwent open total gastrectomy with lymphadenectomy and Roux-en-Y reconstruction. …”
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518
Simulation of Particle-Fluid Interaction in Fractal Fractures Based on the Immersed Boundary-Lattice Boltzmann Method
Published 2020-01-01“…Increasing fracture fractal dimension surges the curvature of the fluid channel, but permeability has a negative exponential correlation to fractal dimension. …”
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519
Experimental Study and Low Temperature Friction Characteristic of Angular Contact Ball Bearing
Published 2018-01-01“…Then the friction torque calculation model of the existing bearing is cited,and the friction torque of the bearing is calculated with the change of speed,preload,the radius of curvature and the temperature of the inner ring. Analysis of the trend of bearing friction torque under low temperature,dynamic pressure bearing friction torque for the friction torque of the80% fluid bearing at low temperature,low temperature and friction properties of lubricating grease viscosity coefficient of bearing the greatest impact,under the condition of low temperature bearing due to friction torque caused by the decrease of elastic hysteresis. …”
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520
Numerical Simulation of Surface Movement and Deformation Caused by Underground Mining with Complex Stratigraphic Boundary
Published 2021-01-01“…The values of surface tilt, surface curvature, and surface horizontal deformation are less than the relevant regulations. …”
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