Results 31 to 40 of about 1,126,427 (279)
Existence of ground states for negative ions at the binding threshold [PDF]
, 2013 As the nuclear charge Z is continuously decreased an N-electron atom undergoes a binding-unbinding transition at some critical Z_c. We investigate whether the electrons remain bound when Z=Z_c and whether the radius of the system stays finite as Z_c is ...
Bellazzini, Jacopo +3 more
core +2 more sources
Applying negative ions to reduce surgical smoke in operation room
Atmospheric Environment: X, 2022 Long-term exposure to surgical smoke generated from electrocautery can increase health risks for medical personnel. Surgical smoke contains high concentrations of nanoparticles (NP, diameter ≤200 nm) and particulate matters with diameter less than 2.5 μm
Xuan-Huy Ninh +7 more
doaj +1 more source
Polarized Negative Ion Source with Multiply Sphericaly Focusing Surface Plasma Ionizer
, 2018 It is proposed one universal H-/D- ion source design combining the most advanced developments in the field of polarized ion sources to provide high-current high-brightness ion beams with >90% polarization and improved lifetime, reliability, and power ...
Dudnikov, A., Dudnikov, V.
core +1 more source
An experimental and theoretical study of transient negative ions in Mg, Zn, Cd and Hg [PDF]
, 2015 A range of experimental and theoretical techniques have been applied to the study of transient negative ions (resonances) formed in electron scattering from the Group II metals Mg, Zn, Cd, and Hg at incident electron energies below the first ionization ...
Bartschat, Klaus R +8 more
core +1 more source
Role of pressure in transport of F- ions in BF3 gas for technological applications [PDF]
FME Transactions, 2015 In this work we present swarm data obtained for F- ions in molecular gas BF3 necessary to form the global models for the complex collisional plasmas. The new results for scattering cross section set and proposed transport coefficients for F- ions in BF3 ...
Raspopović Zoran M. +4 more
doaj
Water Science and Technology, 2021 Negative ions powders (NIP) have been widely applied in many fields because of their natural electric field and far infrared radiation, especially in wastewater treatment.
Xiangfen Zhang +6 more
doaj +1 more source
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Negative ion spectrometry for detecting nitrated explosives [PDF]
, 1975 Ionization procedure is modified to produce mainly negative ions by electron capture. Peaks of negative ions are monitored conventionally. Nitrated organic materials could be identified directly from sample sniff inlet stream by suitably modified mass ...
Boettger, H. G., Yinon, J.
core +1 more source
On the dynamics of chemical reactions of negative ions
, 2010 This review discusses the dynamics of negative ion reactions with neutral molecules in the gas phase. Most anion-molecule reactions proceed via a qualitatively different interaction potential than cationic or neutral reactions.
Mikosch, Jochen +2 more
core +1 more source
Modeling Carbon Chain Anions in L1527 [PDF]
, 2008 The low-mass protostellar region L1527 is unusual because it contains observable abundances of unsaturated carbon-chain molecules including CnH radicals, H2Cn carbenes, cyanopolyynes, and the negative ions C4H- and C6H-, all of which are more associated ...
Harada, Nanase, Herbst, Eric
core +3 more sources