Results 21 to 30 of about 309,205 (308)
Energies, 2021 Arsenic emission from coal combustion power plants has attracted increasing attention due to its high toxicity. In this study, it was found that there was a close relationship between the ash fusion temperature (AFT) and arsenic distribution based on the
Bo Zhao +5 more
doaj +1 more source
Inequality is rising where social network segregation interacts with urban topology
Nature Communications, 2021 Not much is known about the joint relationships between social network structure, urban geography, and inequality. Here, the authors analyze an online social network and find that the fragmentation of social networks is significantly higher in towns in ...
Gergő Tóth +6 more
doaj +1 more source
Growth and Agglomeration [PDF]
International Economic Review, 2001 This article presents a model in which growth and geographic agglomeration of economic activities are mutually self‐reinforcing processes. Economic agglomeration in one region spurs growth because it reduces the cost of innovation in that region through a pecuniary externality due to transaction costs.
P. Martin, OTTAVIANO, GIANMARCO
openaire +5 more sources
Is Agglomeration Desirable? [PDF]
Annals of Economics and Statistics, 2009 By introducing heterogeneity between high-skilled mobile and low-skill immobile workers in a model with land rent and commuting costs we develop a new model in the field of the new model in the field of the new economic geography. This model, which can reveal a dispersion-agglomeration-dispersion configuration when trade gets freer, is used to compare ...
openaire +3 more sources
Estimation of the unfrozen water content of saturated sandstones by ultrasonic velocity
International Journal of Mining Science and Technology, 2023 The unfrozen water content (UWC) of rocks at low temperature is an important index for evaluating the stability of the rock engineering in cold regions and artificial freezing engineering.
Shibing Huang +3 more
doaj +1 more source
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
Agglomerates of nanoparticles [PDF]
Beilstein Journal of Nanotechnology, 2020 Nanoparticles tend to agglomerate. The process of agglomeration is ruled by thermodynamics. Depending on the sign of the enthalpy of interaction, ensembles consist of (repelling) poorly agglomerated or (attracting) highly agglomerated particles. For these two cases different distribution functions for the agglomerates were found.
openaire +3 more sources
Heliyon, 2022 As a hazardous organic chemical raw material, Bisphenol A (BPA) has attracted a great deal of scientific and public attention. In this study, the chitosan functionalized halloysite nanotubes immobilized laccase (lac@CS-HNTs) was prepared by simultaneous ...
Zhaobo Wang +5 more
doaj +1 more source
Inclusion agglomeration in electrified molten metal: thermodynamic consideration [PDF]
, 2016 The effect of electric current on inclusion agglomeration in molten metal has been investigated. It is found that the agglomeration is dependent on the electric current density, distance between inclusions and orientation of electric field.
Qin R. S. +3 more
core +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