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761
Simulation Analysis of Air Flow and Turbulence Statistics in a Rib Grit Roughened Duct
Published 2014-01-01“…In this paper we investigate the two-dimensional, turbulent, unsteady flow around rectangular ribs of variable aspect ratios by directly solving the transient Navier-Stokes and continuity equations using the finite elements method. Flow characteristics and several aspects of turbulent flow are presented and discussed including velocity components and statistics of turbulence. …”
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762
Control of local stress in semiconductor silicon structures
Published 2018-09-01“…This method is based on consequent measurements of intensity of Makyoh image elements of the structure along the chosen direction followed by calculation of micro-geometrical profile and curvature radius.The estimation of residual stress of topological elements Si–SiO system was carried out by means of calculation of interference pictures obtained in a film-substrate gap after separating of film edge from substrate along open window perimeter.Analytical expressions relating semiconductor structure image characteristics with their deformation were developed by means of finite elements method. The expressions allow determining of local residual stress of chosen area of the structure. …”
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763
Upper-Bound Finite Element Adaptive Analysis of Plane Strain Heading in Soil with a Soft Upper Layer and Hard Lower Layer
Published 2019-01-01“…This paper investigates the stability of a rectangular tunnel face affected by surcharge loading in soil with a soft upper layer and hard lower layer using upper-bound finite element methods with a plastic-dissipation-based mesh adaptive strategy (UBFEM-PDMA). …”
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764
An adaptive least-squares algorithm for the elliptic Monge–Ampère equation
Published 2023-10-01“…The approximation relies on mixed low order finite element methods with regularization techniques. In order to account for data singularities in non-smooth cases, we introduce an adaptive mesh refinement technique. …”
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765
Assessment of the Stability of an Unlined Rectangular Tunnel with an Overload on the Ground Surface
Published 2020-01-01“…This paper uses upper-bound finite element methods to assess the stability of an unlined rectangular tunnel in cohesive-frictional soils with an overload acting on the ground surface. …”
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766
Temperature Control Measures and Temperature Stress of Mass Concrete during Construction Period in High-Altitude Regions
Published 2018-01-01“…Therefore, this study explores the temperature control standards, as well as temperature control and crack prevention measures, for concrete in high-altitude regions using three-dimensional finite element methods and based on the concrete gravity dam in Tibet in combination with the characteristics of material properties that are disadvantageous to temperature control and crack prevention. …”
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767
Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine
Published 2017-10-01“…Stress analysis has been conducted by using Niemann methods and Lewis equation. Finite element methods also have been conducted by using commercial software where the stress was obtained on the root of gear by modeling with pitting, without pitting, and matting. …”
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768
An Overview of Experiments and Numerical Simulations on Airflow and Aerosols Deposition in Human Airways and the Role of Bioaerosol Motion in COVID-19 Transmission
Published 2020-05-01“…Herein, in-depth information on in vitro experiments and state-of-the-art review on various computational fluid dynamics (CFD) applications and finite element methods on airflow and aerosol motion in both healthy and obstructed human airways are provided. …”
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769
Experimental and Numerical Evaluation of Dynamic Characteristics of 3DOF Reduced-Scale Model
Published 2024-11-01“… The dynamic behavior of structures subjected to seismic excitations is often predicted by numerical models based on the finite elements method. The reliability of the results of the numerical models must be subject to experimental validation. …”
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