Results 11 to 20 of about 23,327 (247)

Removal of nickel (II) from aqueous solution by graphene and boron nitride nanosheets [PDF]

open access: yesJournal of Water and Environmental Nanotechnology, 2017
Molecular dynamics simulations were carried out to study the removal of Ni2+ as a heavy metal from the water by the functionalized graphene nanosheet (GNS) and boron nitride nanosheet (BNNS).
Jafar Azamat
doaj   +1 more source

O3 Sensitivity and Contributions of Different NMHC Sources in O3 Formation at Urban and Suburban Sites in Shanghai

open access: yesAtmosphere, 2020
Ground-level ozone (O3) pollution is still one of the priorities and challenges for air pollution control in the Yangtze River Delta (YRD) region of China. Understanding the relationship of O3 with its precursors and contributions of different sources in
Haotian Lin   +8 more
doaj   +1 more source

A aula ateliê como experiência de ensino e aprendizagem no Grupo de Estudos Estúdio de Pintura Apotheke

open access: yesRevista Apotheke, 2022
O texto busca explanar sobre as experiências de ensino e aprendizagem do Grupo de Estudos Estúdio de Pintura Apotheke no campo da Arte e da Arte Educação em meio ao espaço do ateliê de pintura.
Marta Facco, Fábio Wosniak
doaj   +1 more source

REFLECTIONS ON IMAGE AND PHOTOGRAPHY: possibilities in research and teaching of Physical Education

open access: yesMotrivivência, 2010
Starting this reflexion from the theoretical contributions such as Guy Debord and Susan Sontag to have a critical understanding of our reality, mediated by images, we intend, throughout this article, to reflect to the reader, some ability to think and ...
Mariana Mendonça Lisboa   +1 more
doaj   +1 more source

Fundamental Understanding of Oxidative Stability in Fluorinated Asymmetric Ethers for Li Batteries

open access: yesAngewandte Chemie, EarlyView.
To improve Li‐metal battery electrolytes, we analyze fluorinated 1‐ethoxy‐2‐methoxyethane (FxEME) oxidative stability via density functional theory (DFT) and molecular dynamics (MD). Fluorination strengthens ethoxy C–H bonds and alters solvent orientation at the cathode, weakening interfacial interactions.
Liang‐Ting Wu   +3 more
wiley   +2 more sources

Source apportionment resolved by time of day for improved deconvolution of primary source contributions to air pollution [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
Present methodologies for source apportionment assume fixed source profiles. Since meteorology and human activity patterns change seasonally and diurnally, application of source apportionment techniques to shorter rather than longer time periods ...
S. Bhandari   +6 more
doaj   +1 more source

Optical Birefringence Fiber Temperature Sensors in the Visible Spectrum of Light

open access: yesAdvances in Electrical and Electronic Engineering, 2017
This article describes experimental tests to determine PM fibers Panda style responses to a thermal source with different initial temperature. The aim of this study was to determine the sensitivity of a polarization maintaining fiber to the radiating ...
Martin Kyselak   +3 more
doaj   +1 more source

Contamination and Source Identification of the Elemental Contents of Soil Samples from Municipal and Medical Waste Dumpsites in Ile-Ife, Nigeria

open access: yesEQA, 2020
Contamination in soil samples collected from municipal and medical waste sites was assessed by employing four indices: contamination factor (Cf ), degree of contamination (Cdeg), pollution load index (PLI), and index of geoaccumulation (Igeo).
Oyediran Kayode Owoade   +6 more
doaj   +1 more source

Os teuto-brasileiros e o papel da imprensa frente ao nacionalismo presente em Blumenau e Hamônia (1937-1945)

open access: yesRevista de Ciências Humanas, 2008
O presente artigo tem como objetivo apresentar uma análise sóciohistórica das diferentes ideologias e políticas étnico-identitárias atreladas à população de origem germânica da região de Blumenau, em Santa Catarina, enfocando o papel de mediação exercido
Eduardo Gomes Silva, Flávio Braune Wiik
doaj   +1 more source

Generation of superoxide anion-radical in leaves of soft wheat (Triticum aestivum L.) under the action of a high-intensity pulsed magnetic field

open access: yesSiberian Journal of Life Sciences and Agriculture
Background. Currently, the scientific community has accumulated a large amount of data covering the action on biological objects of alternating, constant and pulsed magnetic fields (PMF) of low intensity and induction of the order of B=0.1 Tl as a factor
Oleg V. Blednykh   +3 more
doaj   +1 more source

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