Results 41 to 50 of about 309,205 (308)

Amenity complexity and urban locations of socio-economic mixing

open access: yesEPJ Data Science, 2023
Cities host diverse people and their mixing is the engine of prosperity. In turn, segregation and inequalities are common features of most cities and locations that enable the meeting of people with different socio-economic status are key for urban ...
Sándor Juhász   +6 more
doaj   +1 more source

Development of urbanized areas in Ukraine and the world for the period 1950–2035

open access: yesЕкономіка, управління та адміністрування, 2023
In all countries of the world, regardless of their level of development, urbanization processes are inevitable. The challenges of urbanization cause the determination of the tasks before the public administration system to ensure effective management and
L.V. , D.M. , I.V.
doaj   +1 more source

Measuring Agglomeration of Agglomerated Particles Pictures

open access: yesCoRR, 2013
In this article, we introduce a novel geometrical index $δ_{agg}$, which is associated with the Euler number and is obtained by an image processing procedure for a given digital picture of aggregated particles such that $δ_{agg}$ exhibits the degree of the agglomerations of the particles.
Shigeki Matsutani, Yoshiyuki Shimosako
openaire   +2 more sources

Investigation of the Dynamic Characteristics of PM2.5 Dispersion During the Acceleration of Motor Vehicles in Urban Streets Based on Computational Fluid Dynamics and Dynamic Mode Decomposition

open access: yesAtmosphere
Vehicle acceleration typically occurs at traffic lights, intersections, or congested sections within urban streets, where high densities of pedestrians and vehicles pose a direct threat to respiratory health due to PM2.5 dispersion.
Jiawei Ding   +4 more
doaj   +1 more source

Study on improving the stability of adsorption-encapsulation immobilized Laccase@ZIF-67

open access: yesBiotechnology Reports, 2020
Laccase (Trametes versicolor) was immobilized onto/into zeolite imidazolate framework-67 (ZIF-67) for the first time, materials were performed by assisting one-pot synthesis strategy in aqueous solution at room temperature.
Zhaobo Wang   +5 more
doaj   +1 more source

Performance differentials of agglomeration and strategic groups: a test of incubation and new venture strategy [PDF]

open access: yes, 2013
Our paper investigates how nascent firms ‘performance is affected by strategic group membership and industrial agglomeration. Agglomeration is defined using geographical concentration while strategic groups are measured as incubated firms that belong to ...
Amezcua, A.S.   +2 more
core   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

The Importance of Increasing Returns to Scale in the Process of Agglomeration in Portugal: A Non-linear Empirical Analysis [PDF]

open access: yes, 2011
With this work we try to analyse the agglomeration process in the Portuguese regions, using the New Economic Geography models. In these models the base idea is that where has increasing returns to scale in the manufactured industry and low transport ...
Martinho, Vitor Joao Pereira Domingues
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

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