Results 231 to 240 of about 1,647,655 (410)

Direct determination of rare earth elements in atmospheric precipitation using a membrane desolvation ICP-MS/MS with N₂O as the reaction gas. [PDF]

RSC Adv
Zhang JY, Liu WJ, Liu D, Wu GL, Xu ZF.
europepmc   +1 more source

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

Photochemical Production of Singlet Oxygen in Adirondack Long-Term Monitoring Lakes of Varying Browning Status. [PDF]

Environ Sci Technol
Öz B, Snyder PK, Jiao X, Driscoll CT, Zeng T.   +4 more
europepmc   +1 more source

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

Deep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su, Yong Fu, Miaomiao Sun, Kailin Ding, Ying Zhao   +4 more
wiley   +1 more source

Towards a Customized Oral Drug Therapy for Pediatric Applications: Chewable Propranolol Gel Tablets Printed by an Automated Extrusion-Based Material Deposition Method. [PDF]

Pharmaceutics
Roostar K, Meos A, Laidmäe I, Aruväli J, Räikkönen H, Peltonen L, Airaksinen S, Topelius NS, Heinämäki J, Paaver U.   +9 more
europepmc   +1 more source

Geology and ore deposits

, 1979
openaire   +1 more source

Geology of Minerals of the Urengoy Deposit [PDF]

Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018), 2018
E.M. Almukhametova, V.V. Kuzmina, V.V. Anisimov, A. I. Valeev   +3 more
openaire   +2 more sources

Geology of the Arabian Peninsula; sedimentary geology of Saudi Arabia

, 1966
R. W. Powers, L. F. Ramirez, C. D. Redmond, E. L. Elberg   +3 more
semanticscholar   +1 more source

Geologic controls of uranium deposition, Karnes County, Texas [PDF]

, 1976
Kendell A. Dickinson
openalex   +1 more source

Overview of geothermal resource exploration and development in North Africa

Deep Underground Science and Engineering, EarlyView.
This article reviews geothermal exploration in North Africa, highlighting key activities, government policies, and exploration findings across Mauritania, Morocco, Algeria, Tunisia, Libya, and Egypt. The region's substantial geothermal potential, driven by tectonic activity, positions it to play a significant role in the global geothermal energy ...
Meryem Redouane
wiley   +1 more source