Results 21 to 30 of about 6,174,975 (303)

Gaseous [M - H]+ ions of alpha,omega-diphenylalkanes: cyclization to [M + H]+ type ions of benzocycloalkanes as recognized by chain-length dependent proton exchange [PDF]

open access: yes, 1992
Kuck D. Gaseous [M - H]+ ions of alpha,omega-diphenylalkanes: cyclization to [M + H]+ type ions of benzocycloalkanes as recognized by chain-length dependent proton exchange. International Journal of Mass Spectrometry and Ion Processes.
Kuck, Dietmar, Dietmar Kuck
core   +1 more source

Evaluation the correlation Energies and interelectronic distances and for some positive Ions. [PDF]

open access: yesKirkuk Journal of Science, 2008
The aim of this work is evaluation the expectation values of Correlation , repulsion between electrons ,attraction between electrons and nucleus energies and various one ,two electrons distances and (where d is an integer takes the values -2,-1,+1,+2)
Sabah M. Aman Allah
doaj   +1 more source

Bactericidal action of positive and negative ions in air

open access: yesBMC Microbiology, 2007
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   +1 more source

ON POSITIVE AND NEGATIVE HALOGEN IONS. [PDF]

open access: yesJournal of the American Chemical Society, 1901
n ...
openaire   +2 more sources

Mobility of positive ions in CF4 [PDF]

open access: yes, 2014
Cross-section sets for transport of positive ions in CF4 that fit the available experimental data for mobility are assessed by normalizing the available experimental and theoretical cross-sections within the framework of the swarm method.
Jovanović, Jasmina   +4 more
core   +1 more source

Effect of Atmospheric Ions on Interfacial Water

open access: yesEntropy, 2014
The effect of atmospheric positivity on the electrical properties of interfacial water was explored. Interfacial, or exclusion zone (EZ) water was created in the standard way, next to a sheet of Nafion placed horizontally at the bottom of a water-filled ...
Chien-Chang Kurt Kung, Gerald H. Pollack
doaj   +1 more source

Destabilized carbenium ions: [alpha]-carbamoyl-[alpha],[alpha]-dimethylmethyl cations [PDF]

open access: yes, 1990
Wolf R, Grützmacher H-F. Destabilized carbenium ions: [alpha]-carbamoyl-[alpha],[alpha]-dimethylmethyl cations. Journal of physical organic chemistry.
Grützmacher, Hans-Friedrich   +1 more
core   +1 more source

Sheath properties in active magnetized multi-component plasmas

open access: yesScientific Reports, 2021
Multi-component active plasmas are modeled in the presence of a constant oblique magnetic field by using the hydrodynamics equations. Assuming the electrons and negative ions have Boltzmann distribution and the positive ions have finite temperature, the ...
M. M. Hatami
doaj   +1 more source

Self-Organized Fractal Structures on Plasma-Exposed Silver Surface

open access: yesFrontiers in Chemistry, 2021
Planar fractal microstructure is observed on the silver film treated by positive corona discharge for the first time. Due to the abundant positive ions driven by the electrical field of positive polarity, surface modification is mainly induced by the ...
Xuefen Kan   +7 more
doaj   +1 more source

Ionization of Gases by Positive Ions [PDF]

open access: yesPhysical Review, 1929
With a tube of simple design, positive ions of potassium are driven by controllable accelerating potentials up to 750 volts into neon and argon at various pressures. Small collecting potentials are adjusted in such a way as to eliminate practically all secondary effects due to the ions, enabling the collection of any electrons liberated by ionization ...
openaire   +2 more sources

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