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70881
Experimental investigation on mechanical properties and strength criteria of frozen soft rock.
Published 2025-01-01“…Within the test stress range, soft rocks display attenuated stable creep deformation. Acoustic emission (AE) tests were conducted to further verify that the soft rocks show shear failure under load, with a shear plane showing an angle of 45° with the horizontal. …”
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70882
Unveiling the molecular and comorbidity profile among transfusion-dependent and nontransfusion-dependent beta-thalassemic patients in Baghdad city
Published 2024-12-01“…As for disease comorbidities, cholelithiasis (53.8%), osteoporosis (51.3%), and facial bone deformity (45%) were among the most frequently encountered in our study. …”
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70883
Experiencing the Loss of an Adult Child in Old Age
Published 2025-01-01“…Based on the analysis of 76 literary sources, a comparison and specification of the empirical research results were carried out, which preliminary revealed universal psychological consequences of losing a child at an older age, including a sense of guilt, a feeling of abnormality of what happened, complication of the age crisis, deformation of the "Self-concept", chronification of grief. …”
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70884
MiRNA-223-5p inhibits hypoxia-induced apoptosis of BMSCs and promotes repair in Legg-Calvé-Perthes disease by targeting CHAC2 and activating the Wnt/β-catenin signaling pathway.
Published 2025-01-01“…Legg-Calvé-Perthes disease (LCPD) involves femoral head osteonecrosis caused by disrupted blood supply, leading to joint deformity and early osteoarthritis. This study investigates the role of miRNA-223-5p in regulating hypoxia-induced apoptosis and enhancing osteogenesis in bone marrow mesenchymal stem cells (BMSCs). …”
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70885
Serviceability Properties of Solid Buoyancy Materials for Deep-Sea HOV
Published 2022-01-01“…To explore the influence mechanism of different pressure, temperature, loading rate and load cycle times on deformation, failure, and water absorption behavior of solid buoyant materials, hydrostatic pressure tests of solid buoyant materials under different conditions are conducted in this study. …”
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70886
Experimental and Theoretical Study of Gear Dynamical Transmission Characteristic Considering Measured Manufacturing Errors
Published 2018-01-01“…With the tooth contact analysis (TCA) and loaded tooth contact analysis (LTCA) on the real tooth surface, the loaded transmission error, tooth surface elastic deformation, and load distribution can be determined. …”
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70887
Numerical Investigation of Multistage Fractured Horizontal Wells considering Multiphase Flow and Geomechanical Effects
Published 2021-01-01“…Further, a sensitivity analysis was conducted to analyse fracture deformation changes in the production. Fracture characteristics under different rock mechanics coefficients were simulated, and the influence of rock mechanics parameters on productivity was further characterised. …”
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70888
Mechanical properties of a polylactic 3D-printed interim crown after thermocycling.
Published 2025-01-01“…PMMA and bisphenol showed vertical fractures and cracks, whereas PLA showed crown tearing or die deformation. Bisphenol had the highest Shore D hardness, followed by PMMA and PLA, with no significant changes after thermocycling. …”
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70889
Experimental Study of Dynamic Mechanics Characteristics of Saturated Marble under Low Temperature
Published 2021-01-01“…According to fracture morphology analysis, water-ice phase transformation at −5°C leads to the nucleation and expansion of a large number of microcracks and micropores in marble, and the interaction between slip separation cracks and microstructures caused by shear deformation under impact separates the massive crystals inside the rock into microscopic crystals, thus reducing the bearing capacity and strength of marble. …”
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70890
Pleiotropic effects of a recessive Col1a2 mutation occurring in a mouse model of severe osteogenesis imperfecta.
Published 2025-01-01“…To investigate this, one of the OI murine models was used, i.e. the oim/oim (OIM) mice, which closest resembling severely deforming OI in humans. We showed that in OIM, the Col1a2 mutation results in a multifactorial inhibition of the osteogenic differentiation and maturation as well as inhibition of osteoclastogenesis. …”
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70891
STUDY ON INTERFERENCE INSTALLATION OF HYDRAULIC KEYLESS SLEEVE COUPLING FOR A SHIP’S TAIL SHAFT
Published 2021-01-01“…Firstly,analyzed the composition and working principle of hydraulic non-key sleeve coupling,then studied the thick-wall cylinder theory of the coupling interference fit,according to the formula of the stress and deformation amount at a certain diameter of the thick-wall cylinder,calculated the interference amount of coupling sleeve cone surface and axial displacement of coupling sleeve when transferring 2. 8 times rated torque. …”
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70892
Prediction of Transverse Reinforcement of RC Columns Using Machine Learning Techniques
Published 2022-01-01“…Transverse reinforcement of reinforced concrete (RC) columns contributes greatly to the ductility deformation capacity of RC structures. The existing models to predict the amount of transverse reinforcement required are all empirical models with low accuracy and large dispersion and have not considered the real ductility demand of individual components. …”
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70893
Online selfie behavior and consideration of cosmetic surgery in teenage girls: The mediating roles of appearance comparisons and body dissatisfaction.
Published 2025-01-01“…Although cosmetic surgery can repair functional impairments caused by deformities, improve appearance, and enhance self-esteem, it also carries certain risks, complications, and even death. …”
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70894
HER2 Negative Mammary Paget’s Disease or In Situ Melanoma? A Case Report and Review of the Literature
Published 2023-01-01“…The absence of MelanA and S100 immunoexpression and lack of pigmentation and clinical aspects infirmed it. Bowen’s disease was invalidated by its rare presentation in the breast cutaneous tissue and the absence of individual risk factors suggestive of an existing immunosuppressive status. …”
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70895
Influence of gaps in flange joints on the stress-strain state of the unit
Published 2023-11-01“…The methodology of experiment execution on the research subject is substantiated, the character of the influence of the formed gap on the stresses in the elements of the joint is determined.…”
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70896
In Situ Testing Evaluation and Numerical Simulation of CFRP-Strengthened Reinforced Concrete Two-Way Slab with Initial Defect
Published 2024-12-01“…This study focuses on a reinforced concrete (RC) two-way slab with an initial defect, specifically an initial deflection. To avert deformations or damages that could break structural integrity during service, the slab was strengthened by adhering CFRP to its underside. …”
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70897
Experimental and Numerical Simulation to Validate Critical Perforation Velocity on a Flat Plate Aluminium Alloy 6061
Published 2022-01-01“…The comprehensive analysis of mechanical behavior under large stress-strain deformation responses of the alloy is studied over a wide range of strain-rates such as 1 × 10−3 s−1, 1 × 103 s−1, 2 × 103 s−1, and 3 × 103 s−1 under room temperature to elevated temperatures of 100°C and 200°C. …”
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70898
Numerical Study of the Aerodynamics of a Hovering Hummingbird’s Wing with Dynamic Morphing
Published 2022-01-01“…In the results of the downward stroke, the different vortices separated from the surface and formed a vortex ring. The difference is that the leading edge vortex induced a vortex ring near the root and a smaller and weaker vortex ring near the wingtip during the upstroke. …”
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70899
Numerical Analysis Model for the Instantaneous Grinding Temperature of Face Gears with a Worm Grinding Wheel
Published 2024-01-01“…The thermal distribution during the grinding of face gears using a worm grinding wheel is complex, with the heat being concentrated primarily on the surface layer of the wheel teeth, which can lead to thermal deformation and damage. In this study, a numerical computational model for the instantaneous grinding temperature of face gears with a worm grinding wheel is established to investigate the distribution and variation patterns of the grinding temperature. …”
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70900
TRIBOLOGICAL PROPERTIES OF COCRFEW ALLOY UNDER SEAWATER CONDITION (MT)
Published 2023-01-01“…As the W content increased, the alloy wear mechanisms changed from plastic deformation and fatigue wear to abrasive wear.…”
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