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4721
Evaluation of the mechanical characteristics of bagasse ash concrete using response surface methodology
Published 2025-04-01“…Using Response Surface Methodology (RSM) with a Central Composite Design (CCD), the effects of varying mix proportions on compressive and flexural strength were evaluated. Experimental findings demonstrate that SCBA significantly improves concrete performance at an optimal dosage, with 2.22% SCBA, 13.33% OPC, 37.78% fine aggregates, and 46.67% coarse aggregates yielding the highest compressive strength of 29.34 MPa. …”
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4722
Using ground granulated blast-furnace slag to improve the self-degradation issue of liquid calcium aluminate cement mortar
Published 2025-01-01“…The findings demonstrated that the addition of GGBS noticeably enhanced the compressive strength and density of LCAC. The findings showed an optimal GGBS addition of 15% resulted in a 42.35% increase in compressive strength and a 31.23% reduction in water absorption. …”
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4723
Elastic and Caloric Properties of Cluster Systems and Nanoparticles
Published 2014-07-01“…The mathematical relations to calculate the isobaric coefficient of thermal expansion, the coefficient of isobaric compressibility and difference of heats for cluster systems having got within the modified cluster model developed earlier by the authors on the assumption that in disordered condensed matters there is a cluster distribution by the particle number are conducted.…”
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4724
QCT/FEA analyses of palateless splinted and unsplinted maxillary all-on-4 systems
Published 2024-11-01“…The main physical quantity used to evaluate their differences was compressive stress in bone and equivalent (von Mises) stress in the implant and overdenture components. …”
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4725
Research on In-situ Sludge Solidification in the Ecological Refuse Landfill Closure Project
Published 2021-01-01“…For the site pilot test of in-situ sludge solidification in a large ecological landfill closure project in southwest China,this paper adopts five kinds of curing agent mix ratios for site construction,adds curing agent and conducts in-situ mixing with cleaning and mixing equipment after pretreatment of sludge,and drills and samples the treated refuse soil after rolling and curing.The test results show that the sludge treated with five kinds of curing agents could meet the design requirements on pH,moisture content,shear strength and unconfined compressive strength.Through the comparison of shear strength and unconfined compressive strength,the effect of No.5 curing agent is the best,that is,in the curing agent,the ordinary silicate content is 19.3%,the fly ash content is 6.43%,and the curing agent ratio is 25.73%.In the actual construction,the No.5 mix ratio is widely used.In addition,according to the difference of physical properties of sludge in level and treatment direction,the mix ratio of curing agent and the parameters of mixing equipment shall be adjusted appropriately to ensure the uniformity of sludge curing effect.…”
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4726
Non-Destructive Evaluation of Cement Mortar Quality with Hyperspectral Remote Sensing Methods
Published 2025-07-01“…Higher cement content resulted in increased compressive strength and reflectance, particularly on the top surfaces of the samples. …”
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4727
Comparison of 3D printed and conventional denture base materials in terms of durability and performance characteristics
Published 2025-05-01“…A statistically significant difference was noted between the groups in terms of water solubility (p = 0.003). …”
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4728
Analyzing the Effect of Residual Stresses in the Fatigue Life of High Ultimate-Strength Steel Specimens
Published 2025-07-01“…The “resistance increase” and the “stress reduction” approaches were suggested to encompass the number of cycles difference, with good results. In addition, the prior level of existing superficial compressive residual stresses was also estimated. …”
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4729
Comparison of torch with electric arc casting in the lost wax technique for the cast dental stud protocol.
Published 2025-01-01“…In Essay 1, EAC posts exhibited a mean compressive strength of 206.102 MPa, compared to 157.207 MPa for TC posts. …”
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4730
Influence of Steam Curing on High-Cyclic Behaviour of Prestressed Concrete Bridge Elements
Published 2008-09-01“…The difference was larger for higher numbers of loading cycles.…”
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4731
Investigation of the Dynamic Characterization of Traditional and Modern Building Materials Using an Impact Excitation Test
Published 2025-07-01“…Flexural frequencies were more sensitive to material differences than torsional ones. Fiber additives, particularly basalt and polypropylene, significantly improved dynamic stiffness, increasing the dynamic elastic modulus/compressive strength ratio by up to 23%. …”
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4732
Study of Microstructure and Mechanical Properties by Torsional Behavior in Axial Closed Die Rolling Forming
Published 2024-12-01“…During the axial closed die rolling (ACDR) forming, the combined effects of compressive and torsional deformation cause a significant increase in the specimen’s cumulative strain. …”
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4733
Study on rock mechanical properties of deep shale gas reservoirs based on multi-mechanical experiments
Published 2025-06-01“…These mechanical properties show a weak compressive-tensile state, providing favorable conditions for reservoir stimulation. …”
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4734
Progressive collapse of asymmetrical reinforced concrete frames under corner column removal: Experimental investigation
Published 2025-06-01“…The compressive stage is characterized by plastic hinge formation at beam ends, leading to increased deflection. …”
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4735
Correlation analysis of BDNF,GDNF and quality of life in young patients accepting maintenance hemodialysis
Published 2016-01-01“…Objective To analyze the correlation of psychological status,brain derived neurotrophic factor(BDNF) and glial cell-derived neurotrophic factor(GDNF) levels in young patients accepting maintenance hemodialysis.Methods Ninety-seven cases of young patients accepting maintenance hemodialysis were selected as the observation group,while 50 cases of healthy people were chosen as the control group.The symptom check list-90(SCL-90) was used to assess mental and psychological state.BDNF and GDNF were tested using ELISA.The relationship between psychological state and BDNF,GDNF was also analyzed.Results Somatization,depression,anxiety,and hostility scores in the observation group were significantly increased as compared with the norm and those in the control group(P<0.05).There was no significant difference in interpersonal relationships,terror,paranoid,and psychotic scores between the observation group with the norm and the control group(P>0.05).GDNF and BDNF in the observation group were significantly decreased as compared with the control group(P<0.05).There was no significant difference between male and female patients in the observation group(P>0.05).Correlation analysis showed that somatization and hostility in SCL-90 scores showed no significant negative correlation with BDNF(r =- 0.028,- 0.047,P>0.05),and obsessive-compressive,anxiety and depression showed significant correlation with BDNF(r=-0.317,- 0.294,- 0.309,P<0.05).Somatization and hostility in SCL-90 scores showed no significant negative correlation with GDNF(r =- 0.079,0.021,P>0.05),and obsessive-compressive,anxiety and depression showed significant correlation with GDNF(r=- 0.395,- 0.317,- 0.374,P<0.05).Conclusions Psychological status in young patients accepting maintenance hemodialysis showed decreased BDNF and GDNF as well as psychological disorders such as anxiety,depression,etc.The decreases in GDNF and BDNF may contribute to psychological disorder.…”
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4736
Influence of niobium pentoxide addition on the properties of glass ionomer cements
Published 2016-12-01“…Results: The addition of 10% and 20% reduced the microhardness of two GICs (p < .05). Compressive strength showed no difference among groups (p > .05). …”
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4737
Combustion and Mechanical Properties of Polymer-Modified Cement Mortar at High Temperature
Published 2017-01-01“…This study also evaluated the compressive strength and elastic modulus of PCMs with focus on the effects of the type of polymer, unit polymer content, and polymer-cement ratio. …”
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4738
Modelling of Damping Force of Dynamically Loaded Specimen of Polyurethane Foam in Dependence on Its Density
Published 2010-01-01“…Article deals with measurement and modelling of damping force of polyurethane foam specimen being compressed. The specimens were taken from car seats and differ by material density. …”
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4739
Manipulating martensitic transformation and residual stress development in stress superposed incremental forming of SS304
Published 2025-05-01“…Tensile stresses were superposed in-plane on the specimen blank by a custom hydraulic frame, and compressive stresses were incorporated via a polyurethane die. …”
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4740
Mechanical Property Analysis and Sulfate Ion Concentration Prediction of Mortar and Concrete Exposed to Dry–Wet Sulfate Erosion Under Continuous Bending Loads
Published 2025-06-01“…Furthermore, three sets of mortars and concretes with differing water–cement ratios were formulated and analyzed using X-ray diffraction, scanning electron microscopy, and compressive strength tests. …”
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