نتایج جستجو برای: anion interchanges

تعداد نتایج: 34231  

Journal: :Sustainability 2023

Despite the recent pandemic and sharp increases in fuel costs, portions of current U.S. transportation infrastructure have reached their capacity, can no longer carry increasing traffic volumes they are subjected to, nor sustain more. Thus, there is a need to enhance by funding projects that promote more sustainable practices. Alternative intersections interchanges (AIIs) help achieve this prov...

Journal: :Symmetry 2022

We introduce a new symmetry, light-cone reflection (LCR), which interchanges timelike and spacelike intervals. Our motivation is to provide reason, based on why tachyons might exist, with emphasis application neutrinos. show that LCR, combined translations, leads much larger symmetry. construct an LCR-invariant Lagrangian discuss some of its properties. In simple example, we find complete symme...

Farzaneh Ketabchi, Seyed Mostafa Shid Moosavi Somayh Mansoori

Background: The mechanism of hypoxic pulmonary vasoconstriction (HPV) is still debatable. It has been proposed that reactive oxygen species (ROS) might be involved in HPV. However, there is no special transporter for superoxide anion in the cell membrane and it may release from the cells via anion exchanger. Therefore, the aim of this study was to investigate the interaction of ROS and anion ex...

This research investigated stability of two novel aminated polyphenylene polymers as anion exchange layers in bipolar membranes. Bipolar membrane stability was tested under operating conditions of 50 mA/cm2, and under conditions of soaking in room temperature 1 M NaOH. The stability of the custom made bipolar membranes was compared with those for two commercial membranes. For the polyphenylene-...

Optical modeling was applied for obtaining absorbance spectra and band gap values for different morphology of ZnO semiconductor. In optical modeling, the relative permittivity scalars of zinc oxide coral like nanorods were calculated using the Bruggeman homogenization formalism. ZnO nano rods (ZONRs) as a nucleus layer were fabricated on the Indium Tin Oxide (ITO) by chronoamperometry (CA) in a...

2012
Nathan L. Haan MaryCarol R. Hunter Mark D. Hunter

Ecological restoration on roadsides confers several ecological benefits, but also poses significant challenges. Native plants used in restoration efforts must survive compacted soil, harsh microclimates, prolific invasive species, and pollution from road salts and vehicle emissions. Criteria for both site and species selection need to be developed to assist practitioners in restoring roadside e...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
D Jablonski

Mass extinctions have played many evolutionary roles, involving differential survivorship or selectivity of taxa and traits, the disruption or preservation of evolutionary trends and ecosystem organization, and the promotion of taxonomic and morphological diversifications-often along unexpected trajectories-after the destruction or marginalization of once-dominant clades. The fossil record sugg...

Journal: :Journal of cell science 2005
H I Abdel-Halim A T Natarajan L H F Mullenders J J W A Boei

Chromatid interchanges induced by the DNA cross-linking agent mitomycin C (MMC) are over-represented in human chromosomes containing large heterochromatic regions. We found that nearly all exchange breakpoints of chromosome 9 are located within the paracentromeric heterochromatin and over 70% of exchanges involving chromosome 9 are between its homologues. We provide evidence that the required p...

Journal: :international journal of environmental research 0
h. katsura the united graduate school of agricultural science, tokyo university of agriculture & technology, saiwai-cho 3-chome, fuchu-shi, tokyo 183-8509, japan, university of tsukuba s.h.s. at sakado, chiyoda 1-chome, sakado-shi, saitama-ken 350-0214, japan

it is very important to determine the stable nitrogen isotope ratio for the nitrogenous substances in aerosols and the geochemistry behavior of stable nitrate ion isotopes in aerosols in order to elucidate the chemical and physical functions of clouds. hence, aerosol field sampling was conducted in the skies offshore from malibu beach and santa barbara, california, u.s.a. on 16 and 18 july 2009...

Mona Iravaninia S. Rowshanzamir,

In present research work, anion exchange membranes based on quaternized polysulfone with ammonium cation moieties (QAPSF) were prepared by chloromethylation, amination and alkalization. The chloromethylated polysulfone were characterized by 1HNMR spectroscopy and functionalization degree was determined according to peak area integration. Ion transport properties (ionic conductivity, ion exchang...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید