Results 21 to 30 of about 853,266 (286)

Effect of Particle Size on Droplet Infiltration into Hydrophobic Porous Media As a Model of Water Repellent Soil [PDF]

open access: yes, 2011
The wettability of soil is of great importance for plants and soil biota, and in determining the risk for preferential flow, surface runoff, flooding,and soil erosion. The molarity of ethanol droplet (MED) test is widely used for quantifying the severity
Adamson A. W.   +24 more
core   +1 more source

Coal bursting tendency evaluation by needle penetration test

open access: yesMeitan xuebao, 2023
The bursting tendency is the inherent mechanical property of coal, and the important basis for evaluating the degree of coal bursting risk in underground coal mine.
Yixin ZHAO, Ronghuan XIE, Yirui GAO
doaj   +1 more source

PENETRATION EFFICIENCY OF SMALL SIZED CONICAL SHAPED CHARGES IN STEEL TARGETS

open access: yesRudarsko-geološko-naftni Zbornik, 2019
This paper describes research on the testing of small sized point focal shaped charges. They were manufactured from composite-B, Semtex and pressed RDX, binary explosives, and emulsions. As the liner and the whole structure of the charges were identical,
Lorand Kugyela
doaj   +1 more source

Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer

open access: yesApplied Sciences
The pocket penetrometer has become an ideal tool for the rapid testing of soil parameters in the field due to its portability, ease of use, and cost effectiveness, but there is still room for improvement in its accuracy. In this study, a penetration test
Yanzhao Liang, Gangchen Sun, Yunjun Zhao
doaj   +1 more source

A consolidation-penetration test for wedge-shaped penetration tools [PDF]

open access: yesFME Transactions, 2018
Grabs are often used for unloading bulk carriers that deliver iron ore cargoes. The grabbing process starts with cutting the free surface of the bulk iron ore.
Mohammadjavad Mohajeri   +3 more
doaj  

Analysis and research on the constant-rate penetration mechanism of the seabed cone penetration test system

open access: yesFrontiers in Mechanical Engineering, 2023
The seabed Cone Penetration Test (CPT) system is a common method for investigating offshore soil. This paper focuses on a new subsea CPT method for assessing physical and mechanical properties of marine sediments. The new method enables automatic docking
Ziqiang Ren   +13 more
doaj   +1 more source

Evaluation of Liquefaction Potential in Barandouz Dam based on Cone Penetration Test (CPT) [PDF]

open access: yesرویکردهای نوین در مهندسی عمران, 2019
One of the important problems in earthquake geotechnical engineering is liquefaction phenomenon that happens in loose saturated granular soils. Liquefaction resistance of soils can be evaluated with using laboratory tests such as cyclic simple shear test,
Tahmineh Sheikhbaglou   +2 more
doaj   +1 more source

Prediksi Nilai SPT Pada Tanah Non Kohesif Berdasarkan Data CPT dan Sifat Fisik Tanah Menggunakan Jaringan Saraf Tiruan

open access: yesJurnal Teknik Sipil, 2022
Standard Penetration Test (SPT) dan Cone Penetration Test (CPT) merupakan tes penyelidikan tanah awal yang sering digunakan saat memulai suatu konstruksi.
Soewignjo Agus Nugroho   +2 more
doaj   +1 more source

Smart Computer Security Audit: Reinforcement Learning with a Deep Neural Network Approximator [PDF]

open access: yes, 2020
A significant challenge in modern computer security is the growing skill gap as intruder capabilities increase, making it necessary to begin automating elements of penetration testing so analysts can contend with the growing number of cyber threats.
Alonso, E.   +4 more
core  

Experimental evidence of reduced sticking of nanoparticles on a metal grid [PDF]

open access: yes, 2008
Filtering of NaCl, CaCl2, (NH4)2SO4 and NiSO4 aerosol particles 7–20 nm in diameter by a stainless steel grid was studied in order to find out if there is perfect sticking or partial rebound. Our experiment used particles from a spray-drying process, the
Bal, Evert   +2 more
core   +1 more source

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