Results 1 to 10 of about 22,881 (247)
Impact of Wood Moisture Content on Structural Integrity of Wood Under Dynamic Loads
Drvna Industrija, 2023 The majority of mechanical wood properties are negatively affected by wood moisture within the hygroscopic range, disregarding the stress relaxation of wood at very low moisture contents (MC).
Lukas Emmerich, Christian Brischke
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Nature of the Brittleness of Metals
Успехи физики металлов, 2022 The brittleness of material is considered as a specific manifestation of mechanical behaviour under load, which appears in the instability of the strength characteristic value under conditions of non-uniformity of the stress–strain state (SSS).
Yu. Ya. Meshkov, G. P. Zimina, and N. M. Stetsenko
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Problems of Multiscale Brittleness Estimation for Hydrocarbon Reservoir Exploration and Development
Applied Sciences, 2022 The study is focused on the problem of using geophysical data to estimate brittleness of rock masses for the needs of petroleum industry. Three main developed ways to estimate brittleness—mineral-based, log-based, and elastic-based brittleness indices ...
Nikita Dubinya +2 more
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Thorax, 1998 We believe that the asthma phenotypes we have defined as types 1 and 2 brittle asthma appear to be defined subgroups of asthma. For example, we have characterised patients with type 1 brittle asthma, as defined in this review, on the basis of peak flow variability and treatment and these patients remain a separate group when assessed by other means ...
J G, Ayres, J F, Miles, P J, Barnes
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Applied Sciences, 2022 The wear of cutting tools is critical for any engineering applications dealing with mechanical rock excavations, as it directly affects the cost and time of project completion as well as the utilization rate of excavators in various rock masses.
Timur Massalov +2 more
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Energies, 2020 Combinatorial analysis of key petrophysical parameters can provide valuable information about subsurface hydrocarbon reservoirs. This is particularly important for reservoirs with unconventional rock formations that, due to the low permeability, need to ...
Weronika Kaczmarczyk +1 more
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Mathematics, 2023 The occurrence of rock burst hazards is closely related to the brittleness of rocks. Current research has paid less attention to the in-depth relationship between rock brittleness and acoustic emission (AE) signal characteristics and precursor ...
Jianchun Ou, Enyuan Wang, Xinyu Wang
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Numerical Modeling of a Punch Penetration Test Using the Discrete Element Method
Slovak Journal of Civil Engineering, 2020 Understanding the brittleness of rock has a crucial importance in rock engineering applications such as the mechanical excavation of rock. In this study, numerical modeling of a punch penetration test is performed using the Discrete Element Method (DEM).
Basirat Rouhollah, Hamidi Jafar Khademi
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Vestnik MGTU, 2023 The mining and geological conditions in the mines worsen due to changes in the stress-strain state of rock masses and their structural disturbance when mining goes to great depths.
Kuznetcov N. N., Kondrashov L. Yu.
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Monaldi Archives for Chest Disease, 2016 Brittle asthma is a clinical phenotype of the disease at the severe end of the spectrum. Type 1 brittle asthma is characterised by a maintained wide PEF variability (> 40% diurnal variation for > 50% of the time over a period of at least 150 days) despite considerable medical therapy including a dose of inhaled steroids of at least 1500 μg of ...
TOUNGOUSSOVA O +6 more
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