Results 31 to 40 of about 126,370 (292)

Invisibility and PT Symmetry: A Simple Geometrical Viewpoint [PDF]

open access: yes, 2014
We give a simplified account of the properties of the transfer matrix for a complex one-dimensional potential, paying special attention to the particular instance of unidirectional invisibility.
Monzon, Juan J., Sanchez-Soto, Luis L.
core   +6 more sources

Quality of reconstituted tailings samples based on their mechanical response [PDF]

open access: yesE3S Web of Conferences
With a growing global population and greater environmental awareness modern societies inevitably need more mineral resources. Thus, an increase in mining activity is expected through the reactivation of old mines and/or the licensing of new explorations.
Oliveira João   +2 more
doaj   +1 more source

Evaluation of the shear wave velocity (VS) of an artificial carbonate sand obtained with the use of bender elements test

open access: yesDyna, 2021
Carbonate sand is characterized by the presence of fragile grains, which may influence their mechanical response due to the imposed loading; especially cyclic loading.
Samuel Felipe Mollepaza Tarazona   +4 more
doaj   +1 more source

EFFECT OF ALIGNMENT ON THE QUALITY OF BENDER ELEMENT PROCEDURE

open access: yesJurnal Teknologi, 2015
One of the main geophysical tools (seismic tools) in the laboratory is the bender element. This tool can be used to measure some dynamic soil properties (e.g. shear and Young’s modulus). However, even if it relatively simple to use the bender element, inconsistent testing procedures can cause poor quality in the bender element data.
Badee Alshameri   +3 more
openaire   +2 more sources

Experimental study on liquefaction characteristics of sand with fines under different particle size ratios

open access: yesYantu gongcheng xuebao, 2023
A series of undrained cyclic triaxial and bender element tests are carried out on sandy soils with three different particle size ratios by using the GDS cyclic triaxial apparatus with bender elements.
ZUO Kangle 1, 2, GU Xiaoqiang 1, 2
doaj   +1 more source

Sources of Uncertainty in Bender Element Testing: Execution and Interpretation Challenges in Reconstituted Sandy Soils

open access: yesGeotechnics
This paper discusses the principal sources of uncertainty in the execution and interpretation of Bender Element (BE) tests conducted on reconstituted sand samples.
António M. G. Pedro   +3 more
doaj   +1 more source

Volunteer Training Series: Recognizing Young People

open access: yesEDIS, 2016
Developing a sense of belonging is one of the Essential Elements of a positive youth development experience. Creating an inclusive environment in your 4-H club programs and activities can help you achieve this goal.
Georgene Bender   +2 more
doaj   +5 more sources

Dissipation boundaries for bender element experiments on geomaterials based on experimental and computational models

open access: yesTransportation Engineering
The bender element (BE) test is widely employed in geotechnical engineering for measuring the shear wave velocity (Vs) and, consequently, the small-strain shear modulus (G0), due to its ease of application, integration into geotechnical devices, and ...
Ionuţ Dragoş Moldovan   +3 more
doaj   +1 more source

Laboratory Investigation on the Stress-Dependent Anisotropic Shear Wave Velocity (Vs) and Coefficient of Lateral Earth Pressure at Rest (K0) of Granular Materials

open access: yesAdvances in Civil Engineering, 2021
The stress-dependent K0, Vs, and Vs anisotropy and their correlations with sand for 1D consolidation stress were tested with a custom-designed floating-wall consolidometer-type Bender Element (BE) testing apparatus.
Guangbo Du, Nina Liu, Zhao Xia, Xin Kang
doaj   +1 more source

Influence of grain size distribution on dynamic shear modulus of sands

open access: yesOpen Engineering, 2017
The paper presents the results of laboratory tests, that verify the correlation between the grain-size characteristics of non-cohesive soils and the value of the dynamic shear modulus.
Dyka Ireneusz   +2 more
doaj   +1 more source

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