Results 41 to 50 of about 1,815,900 (374)

Using a genetic algorithm to develop a pile design method

Soils and Foundations, 2022
A genetic algorithm (GA) was used in this study to develop a standard penetration test (SPT)-based design method for the axial capacity of driven piles.
Markus Jesswein, Jinyuan Liu
doaj   +1 more source

Evaluation of liquefaction potential using cone penetration test (CPT) and standard penetration test (SPT) [PDF]

Journal of Physics: Conference Series, 2020
Abstract To evaluate soil resistance against liquefaction, a simplified procedure has been developed based on directly field soil testing. There are four recommended field tests, including CPT and SPT. Soil resistance to liquefaction is measured by the safety factor SF, which is the ratio between the capacity of the soil to resist ...
R S Suryanegara Dwipa, I W Arya, I W Wiraga, I M W Pramana   +3 more
openaire   +1 more source

Proderm technology: a water- based lipid delivery system for dermatitis that penetrates viable epidermis and has antibacterial effects. [PDF]

, 2019
BackgroundA defective skin barrier and bacterial colonization are two important factors in maintenance and progression of atopic dermatitis and chronic allergic/irritant hand dermatitis.
Caputo-Janhager, Melinda, Charruyer, Alexandra, Ghadially, Ruby, Raymond, Isabelle, Silvander, Mats   +4 more
core   +3 more sources

Standard Penetration Test Performance in Sandy Deposits [PDF]

Journal of the Korean Geotechnical Society, 2013
This paper presents an equation to depict the penetration behavior during the standard penetration test (SPT) in sandy deposits. An energy balance approach is considered and the driving mechanism of the SPT sampler is conceptually modeled as that of a miniature open-ended steel pipe pile into sands.
N.T. Dung, Sung-Gyo Chung
openaire   +1 more source

Energy Ratio (ER) for the Standard Penetration Test Based on Measured Field Tests

, 2017
The Standard Penetration Test (SPT) is often used to estimate the soil parameters for geotechnical design projects, using the NSPT index. However, these estimates are performed based on empirical correlations without any scientific basis.
Juliana Azoia Lukiantchuki, George de Paula Bernardes, Edmundo Rogério Esquivel   +2 more
openalex   +2 more sources

Developing a Regionally Adaptable CPT-SPT Correlation Using Linear Regression and Genetic Algorithms

Applied Sciences
Establishing a correlation between the Cone Penetration Test (CPT) and the Standard Penetration Test (SPT) is of significant importance for geotechnical engineering practice. A novel correlation between CPT-qt and SPT-N60 based on a genetic algorithm (GA)
Shuai Fang, Nan Zhang, Xinpeng Lv, Haoran Li   +3 more
doaj   +1 more source

Market structure, Regulation and the Speed of Mobile Network Penetration [PDF]

, 2011
The speed of market penetration (i.e. diffusion) is an important summary measure of how well the market works for potential consumers of a new product. This paper identifies the structural features associated with rapid diffusion of mobile telephony.
Armstrong, Berry, Bound, Boylaud, Bresnahan, Bruce Lyons, Cubbin, Fink, Garrard, Gasmi, Geroski, Grajeck, Griliches, Gruber, Gruber, Gual, Gutierrez, Gutierrez, Gutierrez, Hahn, Hahn, Hausman, Koski, Levy, Levy, Li, Li, Liikanen, Maiorano, Mansfield, Manuszak, McNary, Megginson, North, Parker, Ramamurti, Ros, Ros, Stern, Sutton, Sutton, Syverson, Villalonga, Wallsten, Wallsten, Wooldridge, Yan Li, Yarrow   +47 more
core   +1 more source

Proposals of SPT-CPT and DPL-CPT correlations for sandy soils in Brazil

Journal of Rock Mechanics and Geotechnical Engineering, 2017
Field tests in geotechnical engineering are fundamental for identification of the underground conditions. The standard penetration test (SPT) is the most commonly used geotechnical approach.
Mirella Dalvi dos Santos, Kátia Vanessa Bicalho   +1 more
doaj   +1 more source

Power Systems Data Fusion based on Belief Propagation

, 2017
The increasing complexity of the power grid, due to higher penetration of distributed resources and the growing availability of interconnected, distributed metering devices re- quires novel tools for providing a unified and consistent view of the system.
Fusco, Francesco, Gormally, Robert, Tirupathi, Seshu   +2 more
core   +1 more source

P-Y Curves for Single Piles in Sand from the Standard Penetration Test (SPT)

Journal of Materials and Engineering Structures, 2021
It is nowadays recognized the P-Y curves-based methods are the most commonly used methods for the analysis and design of pile foundations under lateral loads.
Abdesselem LAOUEDJ, Ali BOUAFIA
doaj