Results 121 to 130 of about 249,836 (343)
On the Alleged Mongolian Affinities of the American Race: A Reply to Dr. Daniel G. Brinton [PDF]
, 1888 H. ten Kate
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Energy Science &Engineering, EarlyView.This study investigates the impact of landslide geological disasters on oil and gas pipelines, focusing on pipeline deformation under varying landslide dip angles. A large physical simulation platform was used to replicate landslide effects, with experiments conducted at different dip angles to monitor stress, strain, and soil displacement. The results
Xianjie Hao +7 more
wiley +1 more source
Deep structure of the Ulaanbaatar area (Mongolia) from the gravimetric data
Литосфера, 2015 The medium-scale gravity survey over the Ulaanbaatar area (Central Mongolia) has yielded the Bouguer gravity anomaly map. Based on interpretation of these data, 3D models have been built for large density inhomogeneities in the Earth’s crust ...
E. Kh. Turutanov +2 more
doaj
Aboveground biomass of mongolian larch (Larix sibiricledeb.) forests in the eurasian region [PDF]
, 2019 We used our database of tree biomass with a number of 433 sample trees of Larix from different ecoregions of Eurasia, involving 61 trees from Mongolia for developing an additive model of biomass tree components.
Chasovskikh, V. P. +5 more
core
Energy Science &Engineering, EarlyView.ABSTRACT In the downward mining, the goaf of the upper coal seam and the remaining coal pillars will have a negative impact on the stability of the lower coal seam roadway. If the roadway is excavated in the lower coal seam coal pillar, it is more likely to produce mutual superposition effects, which greatly increases the difficulty of roadway ...
Donghai Jiang +7 more
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Energy Science &Engineering, EarlyView.ABSTRACT The deep coal seams in the Pingdingshan mining area are characterized by high stress and low adsorption capacity. Existing water injection additives have proven ineffective in preventing dynamic disasters. Research has found that IDS (iminodisuccinic acid tetrasodium salt) can dissolve minerals in coal, significantly improving the ...
Guochuan Zhang +5 more
wiley +1 more source
Study on Energy Evolution Law of Rocks With Different Lithologies and Sizes
Energy Science &Engineering, EarlyView.ABSTRACT Investigating the actual patterns of energy accumulation and release in roof rock, particularly with varying stiffnesses in mining environments, is crucial. By conducting cyclic loading and unloading tests on rock samples of different lithologies, different sizes, and consistent stiffness, how lithology, size, and stiffness affect the ...
Yanchun Yin +5 more
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The Phonology of the Word in Modern Standard Mongolian [PDF]
, 1957 Don Graham Stuart, Matthew M. Haltod
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