Results 61 to 70 of about 30,015 (273)

Direct Ambient Mass Spectrometry for Food, Beverage, and Agricultural Sample Analysis and Research

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Ambient and direct mass spectrometry (MS) methods are becoming increasingly used for the rapid analysis of food, beverage and agricultural samples. Novel ionization approaches combined with targeted, or untargeted workflows provide analytical outcomes within a greatly reduced time period compared to traditional separation science coupled with ...
Leigh M. Schmidtke, Liang Jiang, Morphy Dumlao, William A. Donald   +3 more
wiley   +1 more source

Steam Plasma Flows Generated in Gerdien Arc: Environment for Energy Gas Production from Organics and for Surface Coatings

Journal of Fluid Science and Technology, 2011
Electric arc stabilized by a vortex of water (Gerdien arc) is used in a special type of plasma torch for generation of thermal plasma jet with extreme plasma parameters.
Milan HRABOVSKY
doaj   +1 more source

Graphene Flakes for Electronic Applications: DC Plasma Jet-Assisted Synthesis

Nanomaterials, 2020
The possibility of graphene synthesis (the bottom-up approach) in plasma and the effective control of the morphology and electrical properties of graphene-based layers were demonstrated.
Irina V. Antonova, Marina B. Shavelkina, Artem I. Ivanov, Regina A. Soots, Peter P. Ivanov, Alexey N. Bocharov   +5 more
doaj   +1 more source

The machining torch movement for the rectangular plasma sheet metal cut.

PLoS ONE, 2023
The sheet metals can be cut into rectangular or irregular pieces, where the main objective is to minimize the sheet metal's physical waste. However, the operating time, the number of movements to cut all rectangles edges, and the cutting process quality,
Alvaro Neuenfeldt Júnior, Matheus Francescatto, Olinto Araújo, David Disconzi, Gabriel Stieler   +4 more
doaj   +1 more source

Oxidation Performance of NiCoCrAlYTa + 7YSZ Coatings With Ta Addition at Different Temperatures

Rare Metals, EarlyView.
ABSTRACT This study investigates the morphology and oxidation behavior of thermally grown oxides (TGO) formed at the interface of NiCoCrAlYTa + 7YSZ (7 wt% Y2O3‐stabilized zirconia) coatings deposited by air plasma spray (APS) in air environments at 1050°C, 1100°C, and 1150°C. The enrichment of Ta‐rich oxides beneath the TGO, along with the segregation
Cheng Xu, Junhao Hu, Xunlei Chen, Ruixiong Zhai, Shaoyi Cheng, Yan Yang, Xintao Zhang, Chao Li, Jing Feng   +8 more
wiley   +1 more source

Change in surface properties of tooth under cold atmospheric plasma impact

Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2020
The article presents the results of experimental studies of the wetting angle of the tooth surface after treatment in the plasma of a dielectric barrier discharge at atmospheric pressure.
A. V. Aksyuchits, D. A. Kotov, A. N. Osipov, V. Ch. Nedel   +3 more
doaj   +1 more source

Decreasing of the concentration quenching of fluorescent dye in a solution by introducing it to nanoparticles of silicon dioxide

Eurasian Journal of Physics and Functional Materials, 2021
The article presents the results of experimental studies of a double-chamber linear circuit DC electric arc plasmatron in experimental and industrial conditions. The electric arc plasmatron of the VORTEX-200 linear circuit with a rated power of 200 kW is
V. G. Lukiaschenko, V. E. Messerle, A. B. Ustimenko, K. A. Umbetkaliev   +3 more
doaj   +1 more source

The Research on Atmospheric Pressure Water Vapour Plasma Generation and Application for the Destruction of Wastes [PDF]

, 2017
In the Lithuanian Energy Institute an experimental atmospheric pressure Ar/water vapour plasma torch has been designed and tested. The power of plasma torch was estimated 40 ÷ 69 kW, the mean temperature of plasma jet at the exhaust nozzle was 2300÷2900K.
Grigaitiene , Viktorija, Tamošiunas , Andrius, Valatkevičius , Pranas   +2 more
core  

Temperature influence on the effectiveness of gas-vortex stabilization in plasma torches [PDF]

, 2018
The results of the efficiency studies of gas-vortex stabilization systems for metal-cutting plasmatrons are presented. It is noted that the method of efficiency evaluation developed by the authors should be based on the calculation of the uniformity of ...
Anakhov, S. V., Matushkin, A. V., Pyckin, Yu. A.   +2 more
core   +3 more sources

Electrical Transport of Nb‐Doped MoS2 Homojunction P–N Diode: Investigating NDR and Avalanche Effect

Small, EarlyView.
Niobium (Nb)‐doped molybdenum disulfide (MoS2) p‐type–n‐type (p–n) homojunction diodes are engineered using thickness‐controlled homo‐interfaces. Current–voltage (I–V) characteristics reveal gate‐tunable rectification, wavelength‐dependent photoresponse, and low‐bias switching.
Ehsan Elahi, Umer Ahsan, Muhammad Farooq Khan, Jamal Aziz, Payal Chauhan, Paweł Piotr Michałowski, Yuan Chen, Goki Eda, Martin Loula, Kalyan Jyoti Sarkar, Zdenek Sofer   +10 more
wiley   +1 more source