Results 121 to 130 of about 1,430,325 (267)

The convergence theories and the geographic concentration in the Portuguese manufactured industry [PDF]

open access: yes
The aim of this paper is to present a further contribution to the analysis of absolute convergence, associated with the neoclassical theory, of the manufactured industry productivity at regional level and for the period from 1986 to 1994 (1)(Martinho ...
Martinho, Vítor João Pereira Domingues
core   +1 more source

The efficiency of a durum wheat-winter pea intercrop to improve yield and wheat grain protein concentration depends on N availability during early growth [PDF]

open access: yes, 2010
Grain protein concentration of durum wheat is often too low, particularly in low-N-input systems. The aim of our study was to test whether a durum wheat - winter pea intercrop can improve relative yield and durum wheat grain protein concentration in low ...
Bedoussac, Laurent, Justes, Eric
core  

Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
State‐of‐the‐art computations unravel the intricate decoherence dynamics of the boron vacancy center in hexagonal boron nitride across magnetic fields from 0 to 3 T. Five distinct regimes emerge, dominated by nuclear spin interactions, revealing optimal coherence times of 1–20 µs in the 180–350 mT range for isotopically pure samples.
András Tárkányi, Viktor Ivády
wiley   +1 more source

Assessment of Groundwater Quality in Kaboudarahang Plain using Factor and Cluster Analysis [PDF]

open access: yesمحیط زیست و مهندسی آب, 2017
Quality of water resources in each region is influenced by factors with natural or man-made origin suffers from physical, chemical, and biological changes.
Foroogh Abbasi Teshnizi   +1 more
doaj  

Geographic concentration in Portugal and regional specific factors [PDF]

open access: yes
This paper pretends to analyze the importance which the natural advantages and local resources are in the manufacturing industry location, in relation with the "spillovers" effects and industrial policies.
Martinho, Vítor João Pereira Domingues
core   +1 more source

Water Quality Sampling, Analysis and Annual Load Determinations for TSS, Nitrogen and Phosphorus at the Washington County Road 195 Bridge on the West Fork of the White River [PDF]

open access: yes, 2006
A water quality sampling station was installed at the Washington County road 195 bridge on the West Fork of the White River just above the confluence of the three main forks of the Upper White River in December 2001.
Cash, Wade   +4 more
core   +2 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

Green Extraction of Natural Colorants from Food Residues: Colorimetric Characterization and Nanostructuring for Enhanced Stability

open access: yesFoods
Food residues are a promising resource for obtaining natural pigments, which may replace artificial dyes in the industry. However, their use still presents challenges due to the lack of suitable sources and the low stability of these natural compounds ...
Victoria Baggi Mendonça Lauria   +1 more
doaj   +1 more source

Comparison of Granular Activated Carbon, Natural Clinoptilolite Zeolite, and Anthracite Packed Columns in Removing Mercury from Drinking Water [PDF]

open access: yesآب و فاضلاب, 2010
Development of effective methods for the removal of such pollutants as heavy metals (e.g., mercury) from surface and ground water resources introduced by municipal and industrial wastewaters seems to be inevitable, especially in the face of the ...
Mohammad Taghi Samadi   +2 more
doaj  

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