22 hasil untuk "Rok Zaplotnik"
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Artikel Jurnal
Frontiers in the Interaction of Chemically Reactive Species From Gaseous Plasma With Hydrophobic Polymers
Surface functionalization of polymers by chemically reactive oxygen is a standard technique for increasing the surface energy of polymers. The technique, however, usually does not provide the desired surface finish of many polymers, including highly hydrophobic polymers like those rich in fluorine…
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Artikel Jurnal Teks lengkap
A Fiber Optic Catalytic Sensor for Neutral Atom Measurements in Oxygen Plasma
The presented sensor for neutral oxygen atom measurement in oxygen plasma is a catalytic probe which uses fiber optics and infrared detection system to measure the gray body radiation of the catalyst. The density of neutral atoms can be determined from the temperature curve of the probe, because…
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Artikel Jurnal Teks lengkap
Optical Emission Spectroscopy as a Diagnostic Tool for Characterization of Atmospheric Plasma Jets
A suitable technique for localized surface treatment of solid materials is an atmospheric pressure plasma jet (APPJ). The properties of the APPJ plasma often depend on small details like the concentration of gaseous impurities what influences the surface kinetics. The simplest and often most useful…
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Artikel Jurnal
Microwave discharge as a remote source of neutral oxygen atoms
The late flowing afterglow of an oxygen plasma was used as a remote source of neutral oxygen atoms. Plasma was created via a microwave discharge in a narrow quartz glass tube with an inner diameter of 6 mm at powers between 50 W and 300 W. The tube was connected to a wider perpendicular tube with…
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Artikel Jurnal Teks lengkap
Mechanisms Involved in the Modification of Textiles by Non-Equilibrium Plasma Treatment
Plasma methods are often employed for the desired wettability and soaking properties of polymeric textiles, but the exact mechanisms involved in plasma–textile interactions are yet to be discovered. This review presents the fundamentals of plasma penetration into textiles and illustrates mechanisms…
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Artikel Jurnal Teks lengkap
Comparison of Plasma Deposition of Carbon Nanomaterials Using Various Polymer Materials as a Carbon Atom Source
Carbon nanowalls are promising materials for various electrochemical devices due to their chemical inertness, desirable electrical conductivity, and excellent surface-to-mass ratio. Standard techniques, often based on plasma-assisted deposition using gaseous precursors, enable the synthesis of…
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Artikel Jurnal Teks lengkap
One-Step Plasma Synthesis of Nitrogen-Doped Carbon Nanomesh
A one-step method for plasma synthesis of nitrogen-doped carbon nanomesh is presented. The method involves a molten polymer, which is a source of carbon, and inductively coupled nitrogen plasma, which is a source of highly reactive nitrogen species. The method enables the deposition of the…
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Artikel Jurnal Teks lengkap
Effects of Hydrogen Dissociation During Gas Flooding on Formation of Metal Hydride Cluster Ions in Secondary Ion Mass Spectrometry
The application of hydrogen flooding was recently shown to be a simple and effective approach for improved layer differentiation and interface determination during secondary ion mass spectrometry (SIMS) depth profiling of thin films, as well as an approach with potential in the field of…
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Artikel Jurnal
Atmospheric Pressure Plasma Jet as an Accelerator of Tooth Bleaching
Objective: To study the effect of atmospheric pressure plasma (APP) jet as a potential accelerator of the degradation of hydrogen peroxide in bleaching gels which could lead to better and faster bleaching. Material and Methods: 25 pastilles of hydroxylapatite were colored in green tea for 8 hours…
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Artikel Jurnal Teks lengkap
Evolution of the Surface Wettability of Vertically Oriented Multilayer Graphene Sheets Deposited by Plasma Technology
Carbon deposits consisting of vertically oriented multilayer graphene sheets on metallic foils represent an interesting alternative to activated carbon in electrical and electrochemical devices such as super-capacitors because of the superior electrical conductivity of graphene and huge…
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Artikel Jurnal Teks lengkap
A Catalytic Sensor for Measurement of Radical Density in CO2 Plasmas
A catalytic sensor for the measurement of radical density in weakly ionized CO2 plasmas, created in a low-pressure electrodeless discharge, is presented. The CO2 plasma was created in a 4 cm wide borosilicate glass tube inside a copper coil connected to a radio frequency generator operating at…
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Artikel Jurnal Teks lengkap
Effect of Oxygen Plasma Treatment on Wheat Emergence and Yield in the Field
This paper investigates the effects of an inductively coupled, radio frequency oxygen plasma on the plant emergence and crop yield of wheat in field growth conditions. Wheat seeds of eight different cultivars were plasma-treated using conditions selected based on preliminary experiments…
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Artikel Jurnal Teks lengkap
Decontamination and Germination of Buckwheat Grains upon Treatment with Oxygen Plasma Glow and Afterglow
Buckwheat is an alternative crop known for its many beneficial effects on our health. Fungi are an important cause of plant diseases and food spoilage, often posing a threat to humans and animals. This study reports the effects of low-pressure cold plasma treatment on decontamination and…
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Artikel Jurnal
Hydrophilization of corn seeds by non-equilibrium gaseous plasma
Abstract Plasma agriculture is a promising niche of interdisciplinary research where the physics, of non-equilibrium gases meets surface chemistry and biological responses. Despite numerous scientific papers, the interaction of gaseous plasma with seeds is not understood enough to make the…
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Artikel Jurnal
Surface functionalization of medical-grade polyvinyl chloride treated with ammonia plasma
Polyvinyl chloride (PVC) is often the material of choice for the synthesis of various components used in medical practice, particularly catheters. As-synthesized components may not exhibit appropriate biocompatibility, so the surface should be modified or coated. Amine groups were grafted onto the…
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Artikel Jurnal Teks lengkap
Wettability Increase in Plasma-Treated Agricultural Seeds and Its Relation to Germination Improvement
The literature on plasma-stimulated modification of seed wettability and germination is reviewed and analyzed. The results reported by different authors are scattered, but there is a positive correlation between the change in the water contact angle and the germination improvement. There is hardly…
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Artikel Jurnal
Proof-of-concept for removing micropollutants through a combination of sub-atmospheric-pressure non-thermal plasma and hydrodynamic (super)cavitation
The persistence and toxicity of hazardous pollutants present in wastewater effluents require the development of efficient and sustainable treatment methods to protect water resources. In this study, the efficacy and efficiency of a novel combination of two advanced oxidation processes –…
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Artikel Jurnal Teks lengkap
The Sensitivity of Fungi Colonising Buckwheat Grains to Cold Plasma Is Species Specific
Fungi are the leading cause of plant diseases worldwide and are responsible for enormous agricultural and industrial losses on a global scale. Cold plasma (CP) is a potential tool for eliminating or inactivating fungal contaminants from biological material such as seeds and grains. This study used…
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Artikel Jurnal Teks lengkap
Surface Modifications of Wheat Cultivar Bologna upon Treatment with Non-Equilibrium Gaseous Plasma
Seeds of wheat cultivar Bologna were treated with a low-pressure, inductively coupled, radio frequency oxygen plasma. E-mode and H-mode plasma at the real powers of 25 and 275 W, respectively, was used at treatment times of 0.1–300 s. Plasma affected seed surface chemistry, determined by XPS, and…