Results 21 to 30 of about 16,613,352 (302)
Comparison of Fuzzy and ANN models performance for monthly flow forecast using short time data [PDF]
علوم و مهندسی آبیاری, 2010 Regarding the bottom outlet gates, the optimal hydraulic design to ensure non-occurrence of destructive vibrations is very important. Forces inserted into the gates due to the flow with high hydrostatic pressure under the gates may cause creation of ...
Sedigheh Anvari +2 more
doaj +1 more source
EVALUATE BRICK UNITS BY ULTRASONIC WAVES
Tikrit Journal of Engineering Sciences, 2005 Wide laboratory search was done to evaluate brick units in single, and test the prisms built from brick unit by use ultrasonic waves in non-destructive test. The results show that the pulse velocity increases with increasing compressive strength and time
Zain Al-Abdin Raouf +2 more
doaj +1 more source
Tillage Intensity Effects on Soil Structure Indicators—A US Meta-Analysis
Sustainability, 2020 Tillage intensity affects soil structure in many ways but the magnitude and type (+/−) of change depends on site-specific (e.g., soil type) and experimental details (crop rotation, study length, sampling depth, etc.).
M. R. Nunes, D. Karlen, T. Moorman
semanticscholar +1 more source
Soil-Structure Interaction in Nonlinear Soil [PDF]
, 2009 A two-dimensional (2-D) model of a building supported by a semi-circular flexible foundation embedded in nonlinear soil is analyzed. The building, the foundation, and the soil have different physical properties. The model is excited by a half-sine SH wave pulse, which travels toward the foundation.
openaire +2 more sources
Assessment of dynamic soil-structure interaction effects for tall buildings: A 3D numerical approach
Soil Dynamics and Earthquake Engineering, 2020 Soil-structure interaction (SSI) phenomena are typically studied in the frequency-domain using the substructure approach, involving several simplifications.
Riccardo Scarfone, M. Morigi, R. Conti
semanticscholar +1 more source
The Reverse Transcriptases Associated with CRISPR-Cas Systems
Scientific Reports, 2017 CRISPR (clustered regularly interspaced short palindromic repeats) and associated proteins (Cas) act as adaptive immune systems in bacteria and archaea.
Nicolás Toro +2 more
doaj +1 more source
Pile Load Capacity – Calculation Methods
Studia Geotechnica et Mechanica, 2015 The article is a review of the current problems of the foundation pile capacity calculations. The article considers the main principles of pile capacity calculations presented in Eurocode 7 and other methods with adequate explanations.
Wrana Bogumił
doaj +1 more source
Microplastics alter soil structure and microbial community composition.
Environment InternationalMicroplastics (MPs), including conventional hard-to-biodegrade petroleum-based and faster biodegradable plant-based ones, impact soil structure and microbiota in turn affecting the biodiversity and functions of terrestrial ecosystems.
Lanfang Han +10 more
semanticscholar +1 more source
Journal of Materials Research and TechnologyThe resource utilization of calcium carbide residue (CCR) and rice husk ash (RHA) is helpful to save resources and alleviate environmental pollution. In this research, CCR and RHA were used to modify soft clay, and the resonant column test was conducted ...
Na Li +6 more
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Effect of salinity on soil structure and soil hydraulic characteristics
Canadian Journal of Soil Science, 2020 : Revealing the influences of soil salinity on soil structure and hydraulic properties contributes to understanding the mechanism of salinity restraining rehabilitation of saline sodic soil in coastal area.
Shengqiang Tang +2 more
semanticscholar +1 more source