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1621
Using Two-Way Prestressed Semicircular Steel Plate for Construction of Reinforced Concrete Cylinder Column
Published 2018-01-01“…Thereby, the calculation model was derived for the prestressed structure. Secondly, the formula was verified by experiments with close agreements. …”
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1622
Experimental Study on Mechanical Properties of Integrated Wall Panels of Grain Warehouse with “Thermal Insulation”
Published 2022-01-01“…Based on the analysis of the combined effect, the degradation factor of the wall panel after cracking is proposed, and the deflection calculation formula of the inner and outer leaf wall panel is established, which provides a theoretical basis for the design and the promotion of the “structure-insulation” integrated wall panel.…”
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1623
Effects of jigsaw learning strategy integrated with computer simulations on gender differences in students’ achievement and attitude in learning chemistry
Published 2025-12-01“…Data analysis was conducted using two-way ANOVA. The results showed that gender did not significantly influence achievement or attitudes regarding acid and base concepts. …”
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1624
Spatio-temporal Evolution and Matching Characteristics of Water and Heat Resources in Tibet Plateau in Recent 48 Years
Published 2021-01-01“…Due to the special high altitude,low atmospheric pressure,strong radiation and sufficient sunshine,the water and heat resources in the Tibet Plateau is very rich,and the ecosystem of the Tibet Plateau is very sensitive to climate change and human activities.Therefore,the study on the spatial-temporal evolution and matching characteristics of water and heat resources in Tibet Plateau is of great significance to the development of local agriculture and animal husbandry.This paper calculates the reference crop evapotranspiration from 1970 to 2017 in Tibet Plateau by using Penman-Monteith formula,analyzes the spatial distribution and temporal variation of the reference crop evapotranspiration,and the spatial and temporal patterns of water and heat indictors such as rainfall,temperature,reference crop evapotranspiration and moisture index,establishes the matching model of water and heat resources in Tibet Plateau by considering the factors of rainfall,air temperature and evaporation,and studies the matching characteristics of water and heat resources in Tibet Plateau through the model.The results show that the spatial distribution of water and heat resources in the Tibet plateau basically presents two kinds of characteristics:large in the southeast,small in the northwest,or large in both ends of the southeast and northwest,and small in the central region,and shows a significant upward trend in time.The matching of water and heat resources gradually improves from northwest to southeast,with a significant enhanced trend from 1970 to 2017,which are favorable to the development of local agriculture and animal husbandry.…”
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1625
Measured Wave Characteristics in Pearl River Estuary under Typhoon Impact
Published 2023-01-01“…The nearshore wave environment of the Pearl River Estuary is significantly affected by typhoons.Based on the buoy observation data in Macao waters of the Pearl River Estuary,wave characteristic parameters (wave height,wave direction,wave period,etc.) and their correlation during the impact of 11 typhoons from 2017 to 2022 were analyzed,and the impact of typhoons on the nearshore wave environment at the Pearl River Estuary was studied.The results show a high correlation between the maximum wave height and the significant wave height,between the one-tenth of the large waves and the significant wave height,and between the significant wave period and the significant wave height,and then the empirical formula is fitted.During the typhoon influence in this area,the main wave direction is SSE with a frequency of about 37.92%;the secondary wave direction is S with a frequency of about 26.11%.For the extreme waves with a significant wave height of greater than 3 m and a maximum wave height of greater than 4 m,the frequencies are 0.65% and 1.95%,respectively.The wave direction is mainly distributed in ENE-SSW.For long-period waves with a mean wave period of greater than 6 s,the wave direction is mainly distributed in ESE-S,with a frequency of about 12.86%.These wave parameters relationships and characteristics can provide references for the design and research of coastal protection projects such as seawalls and breakwaters in the Pearl River Estuary.…”
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1626
Study of genetic diversity of globulin proteins in soybean (Glycine max (L.) Merr.) genotypes
Published 2024-12-01“…The genetic diversity index was calculated based on Nei's formula for each of the 4 zones - ω, ϒ, β, and α. …”
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1627
EFFECT OF MICRO CREDIT FINANCE ON WOMEN EMPOWERMENT IN CROSS RIVER STATE
Published 2023-07-01“…Based on the results of the analysis, it was revealed that micro credit finance had a positive significanteffect on women empowerment in Cross River State. …”
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1628
Spatiotemporal Characteristics of Reference Crop Evapotranspiration in Inner Mongolia from 1959 to 2018
Published 2023-01-01“…To comprehensively understand the impact of climate change on reference crop evapotranspiration (ET<sub>0</sub>) in Inner Mongolia,the daily ET<sub>0</sub> of 50 meteorological stations in Inner Mongolia in the past 60 years was calculated using the FAO Penman-Monteith formula,and further investigated spatiotemporal characteristics,interdecadal and cyclical changes of ET<sub>0</sub> in Inner Mongolia.The results showed that the distribution trend of ET<sub>0</sub> gradually decreased from west to east in Inner Mongolia,the multi-year average was 1 018 mm,while the climate tilt rate was 4.2 mm/10a,showing a significant upward trend.The sum of ET<sub>0</sub> in spring,summer and autumn,the growing periods of crops,accounted for about 95% of the total annual value,while the spatial distribution was similar to the annual value.The annual average ET<sub>0</sub> in various climate zones followed a descending order:ultra-arid climate zone,arid climate zone,semi-arid climate zone,dry and semi-humid climate zone,humid and semi-humid climate zone.The variation coefficients of the climate zones were low,showing weak variability,and abrupt changes occurred in different climate zones at the end of the 1990s.The ET<sub>0</sub> change cycles were mainly 59a,14a and 24a.…”
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1629
DBEM crack propagation for nonlinear fracture problems
Published 2015-09-01“…In correspondence of the latter loading condition, a crack propagation is also simulated, with the crack growth rates calculated using the NASGRO3 formula, calibrated for the material under analysis (steel ASTM A469). …”
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1630
The United States Supreme Court and Business Elites: Gilded Age Origins of Modern American Liberalism
Published 2014-02-01“…Most of today’s scholars treat it as a matter of balancing economic liberty or property rights against government power, and maintain that this balancing formula represents the predominant tradition in constitutional history, dating at least as far back as the Jacksonian era. …”
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1631
Spatial analysis of instability intensity of the villages with sustainable approach in Kaki district, Dashti Township
Published 2015-09-01“…Also SPSS software is used for statistical analysis. The results show that at the present time, all villages have various degrees of instability. …”
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1632
Economic Value A Dried Fish Business Development in Bengkulu City
Published 2018-08-01“…Using formula of Hayami’s added value, the average added value gained is Rp3,486.14/kg. …”
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1633
Shock Wave Attenuation Characteristics of Aluminum Foam Sandwich Panels Subjected to Blast Loading
Published 2018-01-01“…The accuracy of the test results was verified by Henrych’s formula. Experimental results show that the wave attenuation rate on the mild steel structure is only 11.3%, whereas the wave attenuation rate on the sandwich structure can exceed 90%. …”
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1634
Effects of Single and Hybrid Steel Fiber Lengths and Fiber Contents on the Mechanical Properties of High-Strength Fiber-Reinforced Concrete
Published 2018-01-01“…Additionally, based on the test results of the material properties, equations for predicting the elastic modulus and tensile strength of the HSFRC were suggested; the predictions using the proposed formula closely agreed with the experimental results.…”
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1635
Explainable Graph Spectral Clustering of text documents.
Published 2025-01-01“…We present a proposal of explanation of the results of combinatorial and normalized Laplacian based graph spectral clustering. …”
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1636
Three-Point Bending Behaviour of a Fabricated Concrete Connection with Steel Plate Hoop and Bolts
Published 2021-01-01“…Based on the analysis of the load-strain relationship of longitudinal reinforcement, bolts, and steel plate hoop, the moment transmission mechanism and theoretical calculation formula of the new type connection are proposed, and the theoretical calculation results are consistent with the experimental results.…”
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1637
Research on the confinement mechanism and calculation method of axial load-bearing capacity of steel-reinforced concrete-filled square steel tubular columns
Published 2025-01-01“…By comparing and analyzing axial compression test data for steel tube-reinforced concrete short columns with different parameters, the study identifies the most suitable axial compression bearing capacity calculation formula for these columns. Additionally, the introduction of stress–strain models into finite element analysis, compared with experimental results, demonstrates that the proposed confinement mechanism and the established stress–strain model for steel-reinforced concrete are reasonable and effective. …”
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1638
Identifying the Mechanical Parameters of Hard Coating with Strain Dependent Characteristic by an Inverse Method
Published 2015-01-01“…However, the identification results herein can more directly serve for the dynamic modeling of hard-coating plate-shape composite structure.…”
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1639
Study on the Influence of Missile Cabin on Fragment Velocity under Explosive Detonation Impact
Published 2024-01-01“…Then, the rationality of the theoretical formula is validated through the static explosion experiments of two prototype warheads, one with a titanium alloy cabin and the other without any cabin. …”
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1640
Analysis of thermal characteristics of machine tool spindle based on lion swarm optimization algorithm
Published 2024-06-01“…Secondly, the inaccurate but close to real convective heat transfer coefficient value of the main shaft was calculated by empirical formula. Inaccurate convective heat transfer coefficient was led to inaccurate finite element simulation temperature results, so used the lion optimization algorithm to optimize the convective heat transfer coefficient, the convection heat transfer coefficient was regarded as the target value of interest, and the root mean square error between the experimental temperature value and the simulated temperature value was regarded as the fitness function. …”
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