Results 11 to 20 of about 615,196 (306)

A review article on Ciprofloxacin determination with various analytical techniques. [PDF]

open access: yesRecords of Pharmaceutical & Biomedical Sciences, 2021
Ciprofloxacin belongs to the fluoroquinolone family, which exhibits biological activity against both gram-positive and gram-negative bacteria. The previously mentioned drug is of utmost importance due to the high incidence of resistance caused by other ...
Randa Abdel Salam   +5 more
doaj   +1 more source

Negative Hydrogen Ion Sources for Fusion: From Plasma Generation to Beam Properties

open access: yesFrontiers in Physics, 2021
The neutral beam injection systems for the international fusion experiment ITER used for heating, current drive, and diagnostic purposes are based on RF-driven negative hydrogen ion sources with a source area of roughly 0.9 m × 1.9 m. The sources operate
U. Fantz   +4 more
doaj   +1 more source

The efficiency of a focusing system based on thin diaphragms in the ion source with a corona discharge

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
In this work, a charged particle beam transport in an ion source with a corona discharge, the source being equipped with a focusing system based on thin diaphragms in the standing gas and at atmospheric pressure, has been studied experimentally.
Pomozov Timofey   +2 more
doaj   +1 more source

Groundwater chemical characteristics and forming reasons of Yuanyanghu Mining Area

open access: yesMeikuang Anquan, 2023
In order to find out the chemical characteristics and causes of groundwater in Yuanyanghu Mining Area, and to provide basis for the prevention and control of water disaster in the mining area, the aquifer hydro-chemistry of Quaternary, Cretaceous, Zhiluo
ZONG Weiqin, ZHAO Baofeng
doaj   +1 more source

Highly Efficient Small Anode Ion Source

open access: yesPlasma, 2021
We describe some modifications to a Bernas-type ion source that improve the ion beam production efficiency and source operating lifetime. The ionization efficiency of a Bernas type ion source has been improved by using a small anode that is a thin rod ...
Vadim Dudnikov, Andrei Dudnikov
doaj   +1 more source

Ion sources for MedAustron [PDF]

open access: yesReview of Scientific Instruments, 2010
The MedAustron Ion therapy center will be constructed in Wiener Neustadt (Austria) in the vicinity of Vienna. Its accelerator complex consists of four ion sources, a linear accelerator, a synchrotron, and a beam delivery system to the three medical treatment rooms and to the research irradiation room.
Lettry J   +3 more
openaire   +3 more sources

Prediction of Axial Variation of Plasma Potential in Helicon Plasma Source Using Linear Regression Techniques [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2020
Analytical expressions are used frequently for the determination and analysis of plasma parameters. Instead of relying on analytical expressions, the proposed method uses regression techniques supplemented with experimental data for the selected ...
Vipin Shukla   +3 more
doaj   +1 more source

Origin and hydrochemical evolution of confined groundwater in Shanghai, China

open access: yesFrontiers in Earth Science, 2023
Confined groundwater is an indispensable resource for the urban security of Shanghai, China, where multi-layer aquifer structures and human activities create a complex groundwater environment.
Guanghui Zhan   +9 more
doaj   +1 more source

Status of CHIP-TRAP: The Central Michigan University High-Precision Penning Trap

open access: yesAtoms, 2023
Precise and accurate atomic mass data provide crucial information for applications in a wide range of fields in physics and beyond, including astrophysics, nuclear structure, particle and neutrino physics, fundamental symmetries, chemistry, and metrology.
Matthew Redshaw   +7 more
doaj   +1 more source

Research progress of electrospray ion source principle

open access: yes, 2022
The theory of ion source is of great significance to the design and development of ion source, the slow development of this restricts the design and development of ion source, which makes the ion source meet many bottlenecks from laboratory to ...
jiehong, luo
core   +1 more source

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