Results 31 to 40 of about 309,205 (308)
Development of panoramic scanning device of mine ore-pass
Gong-kuang zidonghua, 2013 In view of problems that manual checking ore-pass method cannot observe wall of mine ore-pass clearly and has hidden danger, a panoramic scanning device of mine ore-pass was designed, which was composed of data collection system, hoisting system ...
SHI Zhi-jun +6 more
doaj +1 more source
Kinetics Analysis of the NH3-SCR Denitration Reaction over Sintered Ore Catalysts
Energies, 2022 Utilizing sintered ore catalysts (SOC), which are used in the sintering industry for NH3-SCR denitration, is a feasible and economical way to reduce NOx emission in sintering flue gas.
Wangsheng Chen +5 more
doaj +1 more source
Journal of Urban Economics, 2006 An important element of the cost of distance is time taken in delivering final and intermediate goods. We argue that time costs are qualitatively different from direct monetary costs such as freight charges. The difference arises because of uncertainty.
Harrigan, J, Venables, A
openaire +2 more sources
Egyptian Journal of Petroleum, 2020 Since, cobalt, zinc, mercury and lead ions are high toxic heavy metals; this work aims to investigate the efficiency of eggshell as a low cost sorbent for their ions from aqueous solution.
El-Sayed R.E. Hassan +3 more
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In vitro dosimetry of agglomerates [PDF]
Nanoscale, 2014 A well-controlled route towards biocompatible agglomerated Au-NPs is reported, which span the range from small particles with high diffusion coefficients to larger particles with lower diffusion coefficients. Difference in uptake kinetics of single NPs and agglomerates can be explained by particokinetics, without the need to consider size-mediated ...
Hirsch V. +6 more
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Results in Physics, 2017 A novel simple and convenient process for the synthesis of three dimensional porous hydroxyapatite (HAP) using natural apatite and carboxymethylcellulose (CMC) was introduced.
Gongming Qian +3 more
doaj +1 more source
Ecotoxicology and Environmental Safety, 2022 Immobilization of laccase helps protect the laccase and realizes repeated use. However, excessive encapsulation protection will also limit the release of laccase activity.
Shan Jiang +5 more
doaj +1 more source
Water Science and Technology, 2021 Nanoscale zero-valent iron (nZVI) and sulfides have been confirmed to be effective in arsenic sequestration from aqueous solution. In this study, attapulgite supported and sulfide-modified nanoscale zero-valent iron (S-nZVI@ATP) are synthesized to ...
Shun Cheng +4 more
doaj +1 more source
Timeliness, Trade and Agglomeration [PDF]
, 2004 An important element of the cost of distance is time taken in delivering final and intermediate goods. We argue that time costs are qualitatively different from direct monetary costs such as freight charges. The difference arises because of uncertainty.
Harrigan, James, Venables, Anthony J
openaire +6 more sources
Metals, 2018 How to utilize low grade complex iron resources is an issue that has attracted much attention due to the continuous and huge consumption of iron ores in China. High-aluminum iron ore is a refractory resource and is difficult to upgrade by separating iron
Xianlin Zhou +3 more
doaj +1 more source