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821
Modeling Friction Performance of Drill String Torsional Oscillation Using Dynamic Friction Model
Published 2017-01-01“…Drill string torsional and longitudinal oscillation can significantly reduce axial drag in horizontal drilling. An improved theoretical model for the analysis of the frictional force was proposed based on microscopic contact deformation theory and a bristle model. …”
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822
Compact <italic>Ku</italic>-Band Orthomode Transducer Using Plus-Shaped Waveguide
Published 2025-01-01“…This paper presents a compact Ku-band orthomode transducer (OMT) utilizing a plus-shaped waveguide (P-WG), which allows for the effective separation of vertical and horizontal polarization fields in a compact form factor. …”
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823
Characterization of HVSR and VRSR in the Loess Plateau of China Based on Strong-Motion Data
Published 2024-12-01“…In recent decades, China has collected extensive strong-motion data from the Loess Plateau, which is valuable for understanding the dynamic characteristics of loess sites and the effects of site conditions on seismic motions. The horizontal-to-vertical Fourier spectrum ratio (HVSR) and the horizontal-to-vertical velocity response spectrum ratio (VRSR) are widely used to study site dynamics. …”
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824
Aviation Model: A Fine-Scale Numerical Weather Prediction System for Aviation Applications at the Hong Kong International Airport
Published 2013-01-01“…AVM will be nested inside the operational mesoscale NWP model of HKO with horizontal resolution of 2 km. In this paper, initial numerical experiment results in forecast of windshear events due to seabreeze and terrain effect are discussed. …”
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825
Determination of the Response Spectra of the Superstructure of Length l=3X63.0 m
Published 2024-06-01“…During a seismic impact, the main emphasis is placed on the damage to bridge piers, which were isolated from the horizontal earthquake detector. Accordingly, when calculating the bridges, the reaction spectra obtained from the horizontal earthquake detector are used both for the piers and for the superstructure. …”
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826
Safety Evaluation for Highway Geometric Design Based on Spatial Path Properties
Published 2023-01-01“…First, these combinations of horizontal and vertical alignments were categorized into six classifications, each with its own spatial expression in mathematical form. …”
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827
Adsorción de atrazina y su relación con las características sedimentológicas y eo desarrollo del perfil de dos suelos de la provincia de Córdoba
Published 2002-01-01“…Se estudió la retención de atrazina mediante isotermas de adsorción, en los horizontes de dos suelos de distinto origen sedimentológico, uno aluvial y otro loéssico. …”
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828
Research on Slope Angle of Base for Asphalt-Concrete Core Dam
Published 2023-01-01“…This study takes Miaotang Reservoir in Wushan of Chongqing as an example and uses the nonlinear finite element method (FEM) to analyze the stress and deformation characteristics of concrete bases during the completion and impoundment periods and tensile stress graphs for different base shapes.The effort is to study the influence of the slope angle of the base for the asphalt-concrete core dam on its stress and deformation.The results show that during the completion period,the horizontal displacement,settlement,and principal stress of the base slowly increase as the upstream or downstream slope angle grows.During the impoundment period,the horizontal displacement and settlement of the base gradually decrease with the reduction in the upstream or downstream slope angle.In addition,a greater upstream slope angle can lower the principal stress while a greater downstream slope angle has the opposite effect.In the two working conditions,when the slope angle on both sides of the base increases at the same time,the value of compressive stress will rise,and the value of tensile stress will drop.The change in the slope angle on one side of the base has a stronger influence on the tensile stress graph than that on both sides.It is recommended to use a base with a larger slope angle on the upstream side and a smaller slope angle on the downstream side to improve the stress and deformation within the range of 58° to 90°.…”
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829
Research on hydrodynamic performance of S-type turbine based on linear wave.
Published 2025-01-01“…The results show that in wave field, the inverted S-shape arrangement of horizontal axis is better than the positive S-shape arrangement of horizontal axis and the vertical axis arrangement, and the captured energy is more than 3 times. …”
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830
Coherence of European Union Actions at the UN Human Rights Council and the Council of Europe
Published 2019-07-01“…Neither horizontal nor vertical EU coherence leads to understanding why the EU is accused of “double standards”. …”
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831
El papel de las agencias de seguros en la competencia entre compañías aseguradoras
Published 2008-01-01“…Mostramos que la competencia entre aseguradoras y la integración vertical generan primas más altas que la colusión horizontal. Además, mostramos que la comisión óptima desde del punto de vista del consumidor pueda ser mayor que la comisión generada por cualquiera de las tres estructuras de mercado antes señaladas…”
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832
Grouting Reinforcement Mechanism and Multimodel Simulation Analysis of Longwall Goaf
Published 2021-01-01“…Simulation analysis is carried out from the perspectives of settlement deformation, horizontal movement, vertical stress, and horizontal stress. …”
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833
Wind Structure of a Subtropical Squall Line in China: Results from Dual-Doppler Radar Data
Published 2016-01-01“…The 3D conceptual model of this squall line was proposed. On the horizontal plane, the storm-relative front-to-rear inflow prevailed at the lower altitudes of the leading edge. …”
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834
Angiotensin Converting Enzyme 2, Angiotensin-(1-7), and Receptor Mas Axis in the Kidney
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835
Insubordinación de los saberes sometidos y emergencia de las epistemologías otras
Published 2020-01-01“…Por último, se explora la posibilidad de una genealogía crítica descolonial de los saberes sometidos y la emergencia de las epistemologías otras desde un horizonte mundial para crear «justicia cognitiva» global.…”
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836
Determination of static and dynamic forces for manufacture of corrugated belts for wind tunnel heat exchangers
Published 2021-10-01“…The experiments are carried out on a horizontal milling machine model 6H81. The results of the experiment are applied to stainless steel tapes with a thickness of 0,3 to 0,4 mm.…”
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837
Modelling of the surface of the liquid metal drop with nonfixed radius
Published 2005-12-01“…The system is modeling the surface of the liquid micro volume drop with nonfixed radius on the horizontal plane. The boundary problem is brought to the initial one. …”
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838
Exploration on Formation Mechanism of Core Discing Based on Energy Analysis
Published 2022-01-01“…However, when the axial stress is 60 MPa and the horizontal stress increases from 40 MPa to 80 MPa, the maximum tensile stress at the core stub first increases and then decreases, and there is an inflection point when the horizontal stress is 75 MPa. …”
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839
Efecto del rolado de baja intensidad (RBI) sobre la distribución radical de pastos y arbustos en un bosque del Chaco occidental
Published 2018-01-01“…El RBI incrementó la densidad de raíces de gramíneas, principalmente de M. maximus, en los horizontes superiores, disminuyendo a medida que aumenta la profundidad. …”
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840
Medicamentos intercambiáveis: impacto dos gastos sob a perspectiva de clientes de uma startup mineira
Published 2025-01-01Get full text
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