Results 51 to 60 of about 141,345 (280)
Geologists of Russian origin in Latin America [PDF]
, 2018 Se describe la vida y trayectoria de geólogos que más allá de su nacionalidad (rusa, ucraniana, tártara, alemana, etc.), nacieron en territorios que pertenecieron al Imperio Ruso, la Unión Soviética o la Federación Rusa, y de sus descendientes graduados ...
Alonso, Ricardo +7 more
core +1 more source
Mechanism conversion process and timeliness of N2-ECBM [PDF]
, 2018 Purpose. Based on the technology by which methane drainage is strengthened under gas injection, to examine the process of gas injection and the mechanism of action. Methods.
Chen, L, Wang, L, Yang, H, Yang, T
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Advanced Engineering Materials, EarlyView.Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni +7 more
wiley +1 more source
Journal of Marine Science and Engineering, 2021 The performance of the diamond bit directly affects the drilling efficiency of the seafloor drill. The drill bits used in land drilling are prone to abnormal wear, low coring efficiency, and large sample disturbance in marine exploration.
Jialiang Wang +3 more
doaj +1 more source
Assessment of mining activities with respect to the environmental protection [PDF]
, 2017 This paper deals with the impact of mining on the environment. Coal mining is still among the most widespread and most intense mining activity, which disturbs the landscape around us bringing regional environmental, economic and aesthetic problems ...
Dirner, Vojtech +3 more
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Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
Annual report of research progress [PDF]
, 1969 The great importance of minerals to a state's sound economy can be no better illustrated than by the discovery of oil and gas in Alaska in 1957 in the Kenai Peninsula. This event has led to the establishment of local basic and secondary industries which
MIRL
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Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium [PDF]
, 2018 The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface.
Chouteau, Michel +6 more
core +5 more sources
Advanced Engineering Materials, EarlyView.This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian +6 more
wiley +1 more source
Social Indicators for Arctic Mining [PDF]
, 2011 This paper reviews and assesses the state of the data to describe and monitor mining trends in the pan-Arctic. It constructs a mining index and discusses its value as a social impact indicator and discusses drivers of change in Arctic mining.
Crow, Andrew +4 more
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