Results 1 to 10 of about 71,749,598 (257)

Region and Land Use of Kokra Basin (A Computer Establishing Example of Region Elements Interrelations)

open access: yesActa Geographica Slovenica, 1987
On the contingency tables based analysis of connection between land use and regional elements shows land use is mostly connected with growth conditions and soils.
Drago Perko
doaj   +1 more source

An improved medium for the anaerobic growth of Paracoccus denitrificans Pd1222

open access: yesFrontiers in Microbiology, 2014
Paracoccus denitrificans is a well studied model organism with respect to its aerobic and anaerobic respiratory enzymes. However, until now, the growth medium for this organism has not been optimized for anaerobic growth.
Stefanie M Hahnke   +5 more
doaj   +1 more source

Effects of Rare Earth Elements on Growth and Determination of Secondary Metabolites under In Vitro Conditions in Salvia miltiorrhiza

open access: yesHortScience, 2020
Salvia miltiorrhiza, known as danshen, is one of most valued medicinal plants in China. Although it has been cultivated since ancient times, an optimal culture system needs to be standardized for this important species.
Zhibin Fan   +5 more
doaj   +1 more source

Current state of studying precipitation acidification in Serbia [PDF]

open access: yesGlasnik Srpskog Geografskog Društva, 2015
Basic relations between the state of air pollution and their effects on chemistry of precipitation were introduced in this paper. Changes in the composition of atmosphere were defined by numerous chemical elements and compounds different in ...
Talijan Radomir, Anđelković Goran
doaj   +1 more source

Effects of Macrobiota on the Transfer Efficiency of Essential Elements and Fatty Acids From Phytoplankton to Zooplankton Under Eutrophic Conditions

open access: yesFrontiers in Environmental Science, 2021
The transfer pathways of organic matter and elements from phytoplankton to zooplankton in freshwater ecosystems are important for understanding how aquatic ecosystems function.
Irina Yu Feniova   +8 more
doaj   +1 more source

Simulation and experimental validation in outdoor conditions of a CPV system based on both pyramid and cone secondary optical elements

open access: yesEnergy Conversion and Management: X, 2022
This work deals with real conditions testing of two Fresnel lens-based optical concentrators for concentrator photovoltaic systems (CPV). Particular attention is paid to validate the performances of the secondary optical elements (SOEs), namely pyramid ...
Ali Ahaitouf   +5 more
doaj   +1 more source

The effects of trace elements, cations, and environmental conditions on protocatechuate 3,4-dioxygenase activity

open access: yesScientia Agricola, 2013
Phenanthracene is a highly toxic organic compound capable of contaminating water and soils, and biodegradation is an important tool for remediating polluted environments.
Andréa Scaramal da Silva   +4 more
doaj  

A statistical approach for modelling the effect of hot press conditions on the mechanical strength properties of HTGR fuel elements

open access: yesMechanical Engineering Journal, 2022
The high temperature gas-cooled reactors (HTGRs) are the next-generation reactors with high safety, because the cores of HTGRs would not melt. But it is important to improve the oxidation resistance of the fuel in case of a huge oxygen ingress into the ...
Jun AIHARA   +2 more
doaj   +1 more source

Effects and dynamic behaviour of soil - framed structure interaction

open access: yesGrađevinar, 2022
The effect and behaviour of soil - framed-structure interaction (SSI) under dynamic load conditions are presented in the paper. All civil engineering structures involve various types of structural elements that are in direct contact with soil.
Guerdouh Dhehbiya, Khalfallah Salah
doaj   +1 more source

Damage and Technical Wear of Tenement Houses in Fuzzy Set Categories

open access: yesApplied Sciences, 2021
The results and conclusions of the research presented in the article concern the topic of the technical maintenance and wear of traditionally erected residential buildings.
Jarosław Konior   +2 more
doaj   +1 more source

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