Aerosol Transmission of the Pandemic SARS-CoV-2 and Influenza A Virus Was Blocked by Negative Ions [PDF]
The pandemic of respiratory diseases, such as coronavirus disease 2019 (COVID-19) and influenza, has imposed significant public health and economic burdens on the world.
Cheng Zhang +13 more
doaj +2 more sources
Until a decade ago, the only anion observed to play a prominent role in astrophysics was H–. The bound–free transitions in H– dominate the visible opacity in stars with photospheric temperatures less than 7000 K, including the Sun.
Catherine Walsh +12 more
core +5 more sources
Bactericidal action of positive and negative ions in air [PDF]
Background In recent years there has been renewed interest in the use of air ionisers to control of the spread of airborne infection. One characteristic of air ions which has been widely reported is their apparent biocidal action.
Sleigh P Andrew +6 more
doaj +5 more sources
Overview of the design of the ITER heating neutral beam injectors [PDF]
The heating neutral beam injectors (HNBs) of ITER are designed to deliver 16.7 MW of 1 MeV D ^0 or 0.87 MeV H ^0 to the ITER plasma for up to 3600 s. They will be the most powerful neutral beam (NB) injectors ever, delivering higher energy NBs to the ...
R S Hemsworth +14 more
doaj +2 more sources
A McLafferty-Type Rearrangement in the Pentafluorobenzyl Ester Derivatives of Dialkyl Phosphates in GC-NICI-MS/MS: A Mini-Review and a Meta-Analysis [PDF]
Rearrangements such as the McLafferty rearrangement are common in mass spectrometry of positive ions, but rare in negative ions. The present article searched the literature for McLafferty rearrangements of negative ions formed by negative electrospray ...
Dimitrios Tsikas
doaj +2 more sources
Positive and negative role of negative ions in cosmic exploration [PDF]
Introduction/purpose: At altitudes of 80 to 40 km, while the spacecraft made of duralumin without a thermal-protective coating was descending from the flight orbit at the first and second cosmic velocities, data were obtained on the increase in ...
Leonid I. Gretchikhin
doaj +1 more source
Explosion of the boundary layer upon entry of spacecraft into dense layers of the Earth's atmosphere [PDF]
Introduction/purpose: A supersonic flow around a sphere with a radius of 1m at altitudes of 80 to 40 km was analysed. Methods: The descent trajectory at the first cosmic velocity, similar to that of the Soyuz spacecraft with a duralumin structure ...
Leonid I. Gretchikhin
doaj +1 more source
MATHEMATICAL MODELING OF THE AEROION MODE IN A CAR [PDF]
TRANSPORT PROBLEMS 2022 Volume 17 Issue 2 PROBLEMY TRANSPORTU DOI: 10.20858/tp.2022.17.2.02 Keywords: negative ions; car ionizer; mathematical modeling; comfort of car passengers Mykola BILIAIEV1 , Oleksandr PSHINKO2 , Tetiana RUSAKOVA 3 *, Viktoriia ...
Mykola BILIAIEV +4 more
doaj +1 more source
The air ionisation in Suceava Metropolitan Area [PDF]
This study is the first of its kind, conducted for a city and its surroundings, in Romania. The air ionisation monitoring for Suceava Metropolitan Area (SvMA) was carried out with the PC Connectable Highly Accurate Air Ion Counter Tester COM-3200PRO II ...
Alin PRISACARIU +3 more
doaj +1 more source
Influence of positive ions on the beamlet optics for negative-ion neutral beam injectors
Neutral beam injectors are based on the neutralization of ion beams accelerated at the desired energy. In the case of the ITER heating and diagnostic neutral beams, the target heating power translates into stringent requirements on the acceptable beamlet
A. Pimazzoni +3 more
doaj +1 more source

