Results 21 to 30 of about 320,240 (352)
Agglomeration and Trade Revisited* [PDF]
International Economic Review, 2002 The purpose of this paper is twofold. First, we present an alternative model of agglomeration and trade that displays the main features of the recent economic geography literature while allowing for the derivation of analytical results by means of simple algebra.
OTTAVIANO, GIANMARCO +2 more
openaire +4 more sources
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
openaire +4 more sources
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
A novel Cu/HAP@sBC composite as a persulfate activator for the removal of 2,4,6-trichlorophenol
Catalysis Communications, 2023 As a typical chlorophenol, 2,4,6-trichlorophenol (2,4,6-TCP) is highly toxic and difficult to degrade. Here, we prepared a novel material (Cu/HAP@sBC) by combining copper-based hydroxyapatite with biochar, which removes 2,4,6-TCP via activated persulfate
Mengting Wang +6 more
doaj +1 more source
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
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
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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
Journal of Environmental Management, 2020 Urban areas consume more than 66% of the world's energy and generate more than 70% of global greenhouse gas (GHG) emissions. With the world's population expected to reach 10 billion by 2100, and with nearly 90% of people living in urban areas, a critical
Xiang Yu +4 more
semanticscholar +1 more source