Results 21 to 30 of about 191,835 (202)

THE EUROPEAN LOCATION FRAMEWORK – FROM NATIONAL TO EUROPEAN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The European Location Framework (ELF) means a technical infrastructure which will deliver authoritative, interoperable geospatial reference data from all over Europe for analysing and understanding information connected to places and features.
E. Pauknerova   +3 more
doaj   +1 more source

Experimental Studies on Suppression of Combustion Instability with the Addition of Helium [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
When combustion instability occurs, fluctuation in the release of heat couples with oscillating pressure, while the sensitivity of flame to acoustic disturbance restricts the oscillation intensity.
Y. Liu, J. Li, Z. Tian, T. Zhang, Y. Yan
doaj   +1 more source

Study the Transport Properties of Anion and Cation Exchange Membranes toward Various Ions Using Chronopotentiometry [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2017
The transport properties of various anion and cation exchange membranes were studied in different electrolyte solutions using chronopotentiometry technique to get insight about the influence of the counter ion on the transport properties of the membranes.
Amir Ashrafi   +2 more
doaj  

Design and Simulation of the Flexible AC Transmission System (FACTS) with Power Oscillation Damping (POD) [PDF]

open access: yesEngineering and Technology Journal, 2012
In electrical power systems there are many problems, from these problems voltage drop, over voltage and instability. These problems are solved by using FACTS technology.
Raaed Faleh Hassan   +1 more
doaj   +1 more source

Preparation of Two-Layer Anion-Exchange Poly(ethersulfone) Based Membrane: Effect of Surface Modification

open access: yesInternational Journal of Polymer Science, 2016
The present work deals with the surface modification of a commercial microfiltration poly(ethersulfone) membrane by graft polymerization technique. Poly(styrene-co-divinylbenzene-co-4-vinylbenzylchloride) surface layer was covalently attached onto the ...
Lucie Zarybnicka   +3 more
doaj   +1 more source

Microscopical Analysis of Autofluorescence as a Complementary and Useful Method to Assess Differences in Anatomy and Structural Distribution Underlying Evolutive Variation in Loss of Seed Dispersal in Common Bean

open access: yesPlants, 2023
The common bean has received attention as a model plant for legume studies, but little information is available about the morphology of its pods and the relation of this morphology to the loss of seed dispersal and/or the pod string, which are key ...
Ana M. Santos   +3 more
doaj   +1 more source

Large eddy simulation study of the effect of pilot swirler blade angle on the coherent structure in a dual-swirl combustor

open access: yesXibei Gongye Daxue Xuebao, 2023
Large-scale coherent structures in a dual-swirl direct-mix combustor and the effect of the pilot swirler blade angle variations (35°, 40° and 45°) on them are investigated by using the large eddy simulations.
FENG Xiangzhou   +3 more
doaj   +1 more source

Characterisation of polyphenol oxidase and peroxidase and the role in browning of loquat fruit

open access: yesCzech Journal of Food Sciences, 2015
Polyphenol oxidase (PPO) and peroxidase (POD) were extracted from a new loquat fruit cultivar (Ninghaibai) and characterised using reliable spectrophotometric methods.
Xinglong ZHANG, Xingfeng SHAO
doaj   +1 more source

Integrating selective precipitation of α-lactalbumin into a whey valorisation cascade

open access: yesMljekarstvo
In the Balkans, and probably elsewhere, whey from small dairies, especially acid whey, still poses an environmental challenge. Despite recent advances in whey processing technology, whey is still largely treated as waste or ends up in biogas plants.
Tjaša Prevc   +6 more
doaj   +1 more source

Monolithic Concrete vs Precast Concrete for the Construction of Bridge by Th Cantilever Method

open access: yesRomanian Journal of Transport Infrastructure, 2015
In the article "Monolithic Concrete vs Precast Concrete for the Construction of Bridges by the Cantilever Method", there are approached a number of issues that come out in the design and execution of prestressed concrete bridge structures using the ...
Morlova Dumitru Daniel, Chiotan Corina
doaj   +1 more source

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