Results 51 to 60 of about 8,834,050 (351)
Учёные записки Казанского университета: Серия Естественные науки, 2021 Large (more than 10 m in height) folds complicate the longwall mining of potash salts and are accompanied with the formation of foci of gas-dynamic phenomena. In this study, to identify the folding nature, changes in the physical properties of its rocks,
I.I. Chaikovskiy +3 more
doaj +1 more source
Gas vesicle formation and buoyancy regulation in Pelodictyon phaeoclathratiforme (Green sulfur bacteria) [PDF]
, 1991 Gas vesicle formation and buoyancy regulation in Pelodictyon phaeoclathratiforme strain BU1 (Green sulfur bacteria) was investigated under various laboratory conditions.
Lehmann, Susanne +2 more
core +1 more source
Occurrence phase and gas-bearing evolution of deep coalbed methane
Meitan kexue jishuDeep coalbed methane has achieved a significant breakthrough in daily production of a single well and large-scale commercial development, demonstrating the enormous resource potential.
Shuheng TANG +6 more
doaj +1 more source
Simulated Test of Gas Diffusion Law in Coal Core During Real Coring
Meikuang Anquan, 2020 To reveal the temperature change caused by friction between the wall of coring tube and coal seam during coring process, and to study the gas diffusion law of coal core during real coring process, the temperature field test of the wall of coring tube ...
XING Yi, WANG Zhaofeng, LIU Mian
doaj +1 more source
Effect of gas content on cavitation nuclei
Journal of Fluid MechanicsCavitation inception originates from nuclei in a liquid. This paper proposes a Gibbs free energy approach that provides a smooth transition from homogeneous to heterogeneous nucleation when gas is present.
K. Alamé, K. Mahesh
semanticscholar +1 more source
Local Content in Tanzania’s Gas and Minerals Sectors: Who regulates? [PDF]
, 2017 The implementation of Tanzania’s local content policy for the petroleum and mineral sectors has been hampered by inconsistency, confusion, and un-coordinated donor interventions.
Ovadia, Jesse Salah
core +3 more sources
Study on gas desorption characteristic of coal core during the frozen coring
Journal of Applied Science and EngineeringCoal seam gas content is the basic parameter of coal gas disaster control, the main cause of gas content measured distortion is due to gas fast desorption and large gas loss.
Shujun Ma +5 more
doaj +1 more source
Prediction of dissolved gas content in transformer oil based on multi‐information fusion
High VoltageIn order to accurately predict the content and variation trend of dissolved gas in transformer oil and guide the condition maintenance of power transformers, a combined prediction model based on multi‐information fusion is proposed and its effectiveness ...
Tong Yang +4 more
semanticscholar +1 more source
Gas Content and Gas Occurrence Mechanism of Deep Coal Seams in the Shenfu-Linxing Block
EnergiesThe Shenfu-Linxing block in the Ordos Basin holds abundant deep coalbed methane (CBM) resources, which can alleviate gas shortages and aid dual carbon target achievement. Considering isothermal adsorption traits and parameters like vitrinite reflectance,
Litao Ma +8 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Leukemia is the most common childhood cancer in Mexico, and acute lymphoblastic leukemia (ALL) is the most frequent subtype. Exposure to high concentrations of benzene has been associated with ALL incidence, particularly in urban areas. This study evaluated the relationship between distance to benzene emission sources and the number
Orlando Rivera Zurita +5 more
wiley +1 more source