Results 11 to 20 of about 913,242 (189)
Analyses and calculation of point load strength on rock mass damage index
工程科学学报, 2017 A new method for calculating the damage index was first proposed-point load strength method (PLSM), based on the scene point loading strength test results and the damage theory.
WEN Lei +4 more
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CORRELATIONS OF POINT LOAD INDEX AND PULSE VELOCITY WITH THE UNIAXIAL COMPRESSIVE STRENGTH FOR ROCKS
Journal of Engineering, 2011 Rock engineers widely use the uniaxial compressive strength (UCS) of rocks in designing surface and underground structures. The procedure for measuring this rock strength has been standardized by both the International Society for Rock Mechanics (ISRM ...
Muhammad Abdul Jabbar
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The effect of non-standard loading platen usage on point load index value of rocks [PDF]
Journal of the Southern African Institute of Mining and Metallurgy, 2021 The point load index is a simple, fast, and inexpensive method for determining rock strength and can be applied both in the field and in the laboratory. There are, however, some disadvantages and limitations to the method, and the test results can be affected by the person carrying out the test, the rock characteristics, or the test device.
D. Akbay, R. Altindag
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Reliability and evaluation of point load index values obtained from different testing devices [PDF]
Journal of the Southern African Institute of Mining and Metallurgy, 2020 In some rock mass classification methods, the point load index (PLI) value is used as a parameter in the determination of the class of rock mass. The PLI value may be used as a design parameter such as uniaxial compressive strength (UCS) and tensile strength (TS), owing to its being simpler, faster, and cheaper and easier to prepare than the specimens ...
Altindag, R., Akbay, D.
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Shock and Vibration, 2022 Point load test is a simple and fast method to obtain the compressive strength of rock. According to the maximum load at failure and the distance between two cone ends, the compressive strength of specimens can be calculated by the empirical formula ...
Ming Zhou +4 more
doaj +1 more source
Association between one-hour post-load plasma glucose levels and vascular stiffness in essential hypertension [PDF]
, 2012 Objectives: Pulse wave velocity (PWV) is a surrogate end-point for cardiovascular morbidity and mortality. A plasma glucose value $155 mg/dl for the 1-hour post-load plasma glucose during an oral glucose tolerance test (OGTT) is able to identify ...
Arturi, F +8 more
core +2 more sources
Do frailty and comorbidity indices improve risk prediction of 28-day ED reattendance? Reanalysis of an ED discharge nomogram for older people [PDF]
, 2018 Background: In older people, quantification of risk of reattendance after emergency department (ED) discharge is important to provide adequate post ED discharge care in the community to appropriately targeted patients at risk. Methods: We reanalysed data
A Elixhauser +15 more
core +2 more sources
Journal of Engineering and Applied Science, 2023 Lubricating approaches involving nanoparticles have a significant role in reducing friction and wear. Reducing friction is crucial for preserving energy, minimizing emissions, and protecting the environment.
Trishul Kulkarni +4 more
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Rock material particle size and its correlation with the point load test index
Minerva, 2022 Abstract: This work proposes the methodology to obtain a correlation between the particle size of the rock material and the point load test index (Is 50), in order to characterize the materials, present in mining projects in terms of resistance. For a correct development of mining activities, both open pit (quarries) and underground (mines), it is ...
Patricio Feijoo +3 more
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Electricity load profile classification using Fuzzy C-Means method [PDF]
, 2008 This paper presents the Fuzzy C-Means (FCM) clustering method. The FCM technique assigns a degree of membership for each data set to several clusters, thus offering the opportunity to deal with load profiles that could belong to more than one group at ...
Bradley, D. +3 more
core +3 more sources