Results 141 to 150 of about 2,791,097 (369)

Untying Surface Chemistry and Emulsion Stability to Construct Multifunctional Pickering Emulsion SERS Sensors for Pretreatment‐Free Quantitative Analysis in Bio‐Media

open access: yesAdvanced Science, EarlyView.
A dual‐particle interfacial self‐assembly approach is used to create surface‐accessible Pickering emulsions with Au@Prussian blue nanoparticles acting as the functional component. These emulsions have strong plasmonic properties and are equipped with molecular sieves and internal standards.
Yingrui Zhang   +5 more
wiley   +1 more source

Network cities and externalities [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2004
The concept of «agglomeration economies» explains the existence of advantages derived from the concentration of population and activity. However, it does not explain the existence of spatially dynamic external economies.
Rafael Boix Domènech
doaj  

The spatial effect of intra-metropolitan agglomeration economies [PDF]

open access: yes
This study deals with the role of spatial accessibility to agglomeration economies in the change in spatial structure of industrial employment for the case of the Barcelona Metropolitan Region of Barcelona (BMR).
Ivan Muñiz, Miguel Angel García
core  

Multi‐Walled Carbon Nanotubes Suspensions as Liquid Conductors: Electrical and Mechanical Network Interplay

open access: yesAdvanced Electronic Materials, EarlyView.
The interplay between the mechanical and electrical network of multi‐walled carbon nanotubes suspended in glycerol is studied. The study distinguishes three regimes depending on the mechanoelectrical properties of these electrofluids. Electrofluids transition between regimes upon mechanical deformation, leading to electrically conductive suspensions ...
Sergio Lago‐Garrido   +3 more
wiley   +1 more source

Agglomeration and the Price of Land: Evidence from the Prefectures [PDF]

open access: yes
We use Japanese prefectural wage and land price data to estimate the magnitude of agglomeration effects in manufacturing and finance. We also examine the range of agglomeration effects by estimating the extent to which they diminish with distance, using ...
Jonathan Eaton, Robert Dekle
core  

Impact of Transition Metals and Electrocatalyst Layer Thickness on the Pt‐Based Cathodes of Proton Exchange Membrane Fuel Cells – Do Multimetallic Electrocatalysts Necessarily Yield an Improved Performance?

open access: yesAdvanced Energy Materials, EarlyView.
Nonnoble transition‐metals (TMs) in PtCuNi/C catalysts have a dual influence in proton‐exchange membrane fuel cell cathode catalyst layer. While TMs act as a “sacrificial component” of PtCuNi/C, inhibiting Pt dissolution from the PtMx nanoparticles bearing the active sites, they promote the formation of separate catalysts and ionomer domains in the ...
Ricardo Sgarbi   +16 more
wiley   +1 more source

Stochastic modeling of particle structures in spray fluidized bed agglomeration using methods from machine learning [PDF]

open access: yesarXiv
Agglomeration is an industrially relevant process for the production of bulk materials in which the product properties depend on the morphology of the agglomerates, e.g., on the distribution of size and shape descriptors. Thus, accurate characterization and control of agglomerate morphologies is essential to ensure high and consistent product quality ...
arxiv  

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