Results 11 to 20 of about 6,626,967 (226)
Comparison of epoch and uniaxial versus triaxial accelerometers in the measurement of physical activity in preschool children : a validation study [PDF]
, 2012 The objectives of this Study were to explore whether triaxial is more accurate than uniaxial accelerometry and whether shorter sampling periods (epochs) are more accurate than longer epochs. Physical activity data from uniaxial and triaxial (RT3) devices
Bulley, Catherine +3 more
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Triaxial test and strength analysis of root-soil composite
Shuiwen dizhi gongcheng dizhi, 2022 The root system of vegetation has a significant effect on soil strength. The existing studies lack an analytical description of the stress state during root-soil complex failure. To quantify the contribution of vegetation roots to soil strength, a series
Caiyin ZHONG +3 more
doaj +1 more source
Frontiers in Earth Science, 2022 With the ever-increasing demand for energy, energy mining is developing in the deep underground. In this paper, a conventional triaxial test and a triaxial test at different temperatures (45 MPa confining pressure) have been carried out for sandstone in ...
Xiaoping Wang +5 more
doaj +1 more source
Graz Reading Comprehension Test
, 2023 Der GraLeV ist ein Verfahren zur Messung des Leseverständnisses (auf Wort-, Satz- und Textebene) von Kindern der dritten und vierten Schulstufe. Er besteht aus 4 Subtests mit insgesamt 38 Itemsets. Der GraLeV weist eine interne Konsistenz von Cronbachs α
Riedl, S. +4 more
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Shuili Shuiyun Gongcheng Xuebao, 2018 Aimed to study the characteristics of strength and deformation along with acoustic emission under cyclic loading, uniaxial and triaxial cyclic loading-unloading compression tests on granite were carried out using MTS815 system. Test results show that the
YAO Jikang +3 more
doaj +1 more source
Triaxial test on glass beads simulating coarse-grained soil
Research in Cold and Arid Regions, 2022 It is feasible to study the mechanical characteristics of coarse-grained soil by simulated granular materials such as glass beads. In this paper, 3 mm diameter glass beads are used to conduct drained and undrained triaxial tests under different confining
WenDong Xu +3 more
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A novel true triaxial test system for microwave-induced fracturing of hard rocks
Journal of Rock Mechanics and Geotechnical Engineering, 2021 This study introduces a test system for microwave-induced fracturing of hard rocks under true triaxial stress. The test system comprises a true triaxial stress loading system, an open-ended microwave-induced fracturing system, a data acquisition system ...
Xia-Ting Feng +6 more
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Testing noncohesive geogrid-reinforced soil in triaxial shear apparatus under cyclic loading
Građevinar, 2021 In road base layers, geogrids assume the reinforcement or stabilization function where good interaction between geogrid and unbound base material is important.
Jelena Kaluđer +2 more
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Determination method of rock characteristic stresses based on the energy growth rate
Frontiers in Earth Science, 2023 Introduction: Precisely determining the characteristic stress value of a rock progressive failure process has important theoretical and practical significance for reasonably defining the rock deformation and failure stage, mechanical mechanism, and ...
Xiaohui Liu +6 more
doaj +1 more source