Download or read book Plasma Jet Formation and Interactions Between Atmospheric Pressure Dielectric Barrier Discharge Jets written by Q. Th Algwari and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Modelling and Characterization of Dielectric Barrier Discharge Based Cold Plasma Jets written by G Divya Deepak and published by Cambridge Scholars Publishing. This book was released on 2020-01-15 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-equilibrium atmospheric pressure plasma jets (APPJs) are of intense interest in current low-temperature plasma research because of their immense potential for material processing and biomedical applications. Depending on the jet configuration and the electrical excitation, plasma characteristics including heat, charged particle, electric field, and chemically active species may differ significantly. Other important parameters of importance in these studies are the kind of utilized working gas and gas flow rate. This book presents the electrical characterization of DBD-based APPJs for three electrode arrangements: ring electrode, pin electrode and floating helix electrode configurations. The analysis presented here will serve to help in establishing an optimum range of operation for a cold plasma jet without arcing and without any physical damage to the electrodes. Furthermore, the experimental results provided in the book establish the significance of the type of working gas on the power consumption and on the jet length obtained. These developed cold DBD-based APPJs of larger lengths may be useful for diverse biological applications and surface treatments.

Download or read book The Modelling and Characterization of Dielectric Barrier Discharge Based Cold Plasma Jets written by G. Divya Deepak and published by Cambridge Scholars Publishing. This book was released on 2020-04 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-equilibrium atmospheric pressure plasma jets (APPJs) are of intense interest in current low-temperature plasma research because of their immense potential for material processing and biomedical applications. Depending on the jet configuration and the electrical excitation, plasma characteristics including heat, charged particle, electric field, and chemically active species may differ significantly. Other important parameters of importance in these studies are the kind of utilized working gas and gas flow rate. This book presents the electrical characterization of DBD-based APPJs for three electrode arrangements: ring electrode, pin electrode and floating helix electrode configurations. The analysis presented here will serve to help in establishing an optimum range of operation for a cold plasma jet without arcing and without any physical damage to the electrodes. Furthermore, the experimental results provided in the book establish the significance of the type of working gas on the power consumption and on the jet length obtained. These developed cold DBD-based APPJs of larger lengths may be useful for diverse biological applications and surface treatments.

Download or read book Characterization and Interactions of Atmospheric Pressure Plasma Jets APPJ with DNA and Human Cells written by Xu Han and published by . This book was released on 2017 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atmospheric Pressure Plasma written by Anton Nikiforov and published by BoD – Books on Demand. This book was released on 2019-04-24 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma as the fourth state of matter is an ionized gas consisting of both negative and positive ions, electrons, neutral atoms, radicals, and photons. In the last few decades, atmospheric-pressure plasmas have started to attract increasing attention from both scientists and industry due to a variety of potential applications. Because of increasing interest in the topic, the focus of this book is on providing engineers and scientists with a fundamental understanding of the physical and chemical properties of different atmospheric-pressure plasmas via plasma diagnostic techniques and their applications. The book has been organized into two parts. Part I focuses on the latest achievements in advanced diagnostics of different atmospheric-pressure plasmas. Part II deals with applications of different atmospheric-pressure plasmas.

Download or read book Atmospheric Pressure Plasma for Surface Modification written by Rory A. Wolf and published by John Wiley & Sons. This book was released on 2012-11-08 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Book's focus and intent is to impart an understanding of the practical application of atmospheric plasma for the advancement of a wide range of current and emerging technologies. The primary key feature of this book is the introduction of over thirteen years of practical experimental evidence of successful surface modifications by atmospheric plasma methods. It offers a handbook-based approach for leveraging and optimizing atmospheric plasma technologies which are currently in commercial use. It also offers a complete treatment of both basic plasma physics and industrial plasma processing with the intention of becoming a primary reference for students and professionals. The reader will learn the mechanisms which control and operate atmospheric plasma technologies and how these technologies can be leveraged to develop in-line continuous processing of a wide variety of substrates. Readers will gain an understanding of specific surface modification effects by atmospheric plasmas, and how to best characterize those modifications to optimize surface cleaning and functionalization for adhesion promotion. The book also features a series of chapters written to address practical surface modification effects of atmospheric plasmas within specific application markets, and a commercially-focused assessment of those effects.

Download or read book Plasma Medicine written by M. Laroussi and published by Cambridge University Press. This book was released on 2012-05-24 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book dedicated exclusively to plasma medicine for graduate students and researchers in physics, engineering, biology, medicine and biochemistry.

Download or read book Investigation of a Pulsed plasma Jet for Separation Shock boundary Layer Interaction Control written by Venkateswa Narayanaswamy and published by . This book was released on 2010 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pulsed-plasma jet (called a "spark-jet" by other researchers), is a high-speed synthetic jet that is generated by striking an electrical discharge in a small cavity. The gas in the cavity pressurizes owing to the heating and is allowed to escape through a small orifice. A series of experiments were conducted to determine the characteristics of the pulsed-plasma jet issuing into stagnant air at a pressure of 45 Torr. These results show that typical jet exit velocities of about 250 m/s can be induced with discharge energies of about 30 mJ per jet. Furthermore, the maximum pulsing frequency was found to be about 5 kHz, because above this frequency the jet begins to misfire. The misfiring appears to be due to the finite time it takes for the cavity to be recharged with ambient air between discharge pulses. The velocity at the exit of the jet is found to be primarily dependent on the discharge current and independent of other discharge parameters such as cavity volume and orifice diameter. Temperature measurements are made using optical emission spectroscopy and reveal the presence of considerable non-equilibrium between rotational and vibrational modes. The gas heating efficiency was found to be 10% and this parameter is shown to have a direct effect on the plasma jet velocity. These results indicate that the pulsed-plasma jet creates a sufficiently strong flow perturbation that is holds great promise as a supersonic flow actuator. An experimental study is conducted to characterize the performance of a pulsed-plasma jet for potential use in supersonic flow control applications. To obtain an estimate of the relative strength of the pulsed-plasma jet, the jet is injected normally into a Mach 3 cross-flow and the penetration distance is measured by using schlieren imaging. These measurements show that the jet penetrates 1.5 [delta], where [delta] is the boundary layer thickness, into the cross-flow and the jet-to-crossflow momentum flux ratio is estimated to be 0.6. An array of pulsed-plasma jets was issued from different locations upstream of a 30-degree compression ramp in a Mach 3 flow. Furthermore, two different jet configurations were used: normal injection and pitched and skewed injection. The pitched and skewed configuration was used to see if the jets could act as high-bandwidth pulsed vortex generators. The interaction between the jets and the separation shock was studied using phase-locked schlieren imaging. Results show that the plasma jets cause a significant disturbance to the separation shock and clearly influence its unsteadiness. While all plasma jet configurations tested caused an upstream motion of the separation shock, pitched and skewed plasma jets caused an initial downstream shock motion before the upstream motion, demonstrating the potential use of these plasma jets as vortex generator jets. The effect of the plasma jet array on the separation shock unsteadiness is studied in a time-resolved manner by using 10 kHz schlieren imaging and fast-response wall pressure measurements. An array of three pulsed-plasma jets, in a pitched and skewed configuration, is used to force the unsteady motion of the interaction formed by a 24° compression ramp in a Mach 3 flow. The Reynolds number of the incoming boundary layer is Re[theta]=3300. Results show that when the pulsed jet array is placed upstream of the interaction, the jets cause the separation shock to move in a quasi-periodic manner, i.e., nearly in sync with the pulsing cycle. As the jet fluid convects across the separation shock, the shock responds by moving upstream, which is primarily due to the presence of hot gas and hence the lower effective Mach number of the incoming flow. Once the hot gases pass through the interaction, the separation shock recovers by moving downstream, and this recovery velocity is approximately 1% to 3% of the free stream velocity. With forcing, the low-frequency energy content of the pressure fluctuations at a given location under the intermittent region decreases significantly. This is believed to be a result of an increase in the mean scale of the interaction under forced conditions. Pulsed-jet injection are also employed within the separation bubble, but negligible changes to the separation shock motion were observed. These results indicate that influencing the dynamics of this compression ramp interaction is much more effective by placing the actuator in the upstream boundary layer.

Download or read book Cold Plasma in Food and Agriculture written by NN Misra and published by Academic Press. This book was released on 2016-07-15 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cold Plasma in Food and Agriculture: Fundamentals and Applications is an essential reference offering a broad perspective on a new, exciting, and growing field for the food industry. Written for researchers, industry personnel, and students interested in nonthermal food technology, this reference will lay the groundwork of plasma physics, chemistry, and technology, and their biological applications. Food scientists and food engineers interested in understanding the theory and application of nonthermal plasma for food will find this book valuable because it provides a roadmap for future developments in this emerging field. This reference is also useful for biologists, chemists, and physicists who wish to understand the fundamentals of plasma physics, chemistry, and technology and their biological interactions through applying novel plasma sources to food and other sensitive biomaterials. Examines the topic of cold plasma technology for food applications Demonstrates state-of-the-art developments in plasma technology and potential solutions to improve food safety and quality Presents a solid introduction for readers on the topics of plasma physics and chemistry that are required to understand biological applications for foods Serves as a roadmap for future developments for food scientists, food engineers, and biologists, chemists, and physicists working in this emerging field

Download or read book Experimental Investigation of a Non thermal Atmospheric Pressure Plasma Jet written by Asma Begum and published by . This book was released on 2010 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Discharge Plasmas written by Tao Shao and published by Springer Nature. This book was released on 2023-07-14 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the latest progress in pulsed discharge plasmas presented by front-line researchers worldwide. The science and technology surrounding pulsed discharge plasmas is advanced through a wide scope of interdisciplinary studies into pulsed power and plasma physics. Pulsed discharge plasmas with high-power density, high E/N and high-energy electrons can effectively generate highly reactive plasma. Related applications have gathered strong interests in various fields. With contributions from global scientists, the book elaborates on the theories, numerical simulations, diagnostic methods, discharge characteristics and application technologies of pulsed discharge plasmas. The book is divided into three parts with a total of 35 chapters, including 11 chapters on pulsed discharge generation and mechanism, 12 chapters on pulsed discharge characterization and 12 chapters on pulsed discharge applications (wastewater treatments, biomedicine, surface modification, and energy conversion, etc). The book is a must-have reference for researchers and engineers in related fields and graduate students interested in the subject.

Download or read book Spark Discharge written by YuriP. Raizer and published by Routledge. This book was released on 2017-11-13 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spark Discharge is a first-of-its-kind text, providing a comprehensive and systematic description of the spark breakdown of long gas gaps. It discusses the nature of a long spark, physical peculiarities of relevant gas discharge processes, methods and results of experimental studies, and analytical and numerical models. The most important applications in high-voltage engineering are covered in a single volume. The straightforward presentation of complicated materials, the deep insight into the nature of the processes, and the simplified mathematical descriptions of the phenomena, make Spark Discharge an excellent textbook for students and an indispensable reference for researchers, physicists, and engineers.

Download or read book Plasma Cancer Therapy written by Michael Keidar and published by Springer Nature. This book was released on 2020-08-18 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, written by key researchers in the field, provides a comprehensive analysis and overview of the state of the art of plasma-based cancer therapy. Recent progress in atmospheric plasmas has led to non-thermal or cold atmospheric plasma (CAP) devices with ion temperatures close to room temperature. In contrast to many existing anti-cancer approaches, CAP is a selective anti-cancer modality which has demonstrated significant potential in cancer therapy. Written by a global, cross-disciplinary group of leading researchers, this book covers basic theory, generation, diagnostics, and simulation of cold atmospheric plasma, as well as their clinical application in cancer therapy, immunotherapy, and future outlook, giving a complete picture of the field. It is meant for a broad audience, from students to engineers and scientists, who are interested in the emerging world of plasma medical applications. It presents recent advances, primary challenges, and future directions of this exciting, cutting-edge field.

Download or read book Redox Biology in Plasma Medicine written by Sander Bekeschus and published by CRC Press. This book was released on 2024-07-12 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma medicine uses non-equilibrium plasmas generated under atmospheric-pressure conditions. Therapeutical plasmas can stimulate tissue regeneration or inactivate cancer cells. This book reviews the interrelation between plasma chemistry and biochemistry complemented by discussion of the ways plasmas inactivate various pathogens. Focus is on the plasma effects on mammalian cells, subsequent consequences for cell-biological processes, and plasma applicability specific medical therapies. Contributions illustrate the ways cold atmospheric-pressure plasma can be used as a controllable source of redox-active species and as a useful tool for research in redox biology. Key Features Summarizes plasma chemistry, biochemistry, and microbiology Documents the ways plasmas interact with lipids, membranes, and cells Reviews therapeutic uses of plasmas in medicine Focuses on uses of plasmas as cancer treatment

Download or read book Plasma Medicine written by Alexander Fridman and published by John Wiley & Sons. This book was released on 2012-12-19 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive text is suitable for researchers and graduate students of a ‘hot’ new topic in medical physics. Written by the world’s leading experts, this book aims to present recent developments in plasma medicine, both technological and scientific, reviewed in a fashion accessible to the highly interdisciplinary audience consisting of doctors, physicists, biologists, chemists and other scientists, university students and professors, engineers and medical practitioners. The book focuses on major topics and covers the physics required to develop novel plasma discharges relevant for medical applications, the medicine to apply the technology not only in-vitro but also in-vivo testing and the biology to understand complicated bio-chemical processes involved in plasma interaction with living tissues.

Download or read book Non Equilibrium Air Plasmas at Atmospheric Pressure written by K.H. Becker and published by CRC Press. This book was released on 2004-11-29 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric-pressure plasmas continue to attract considerable research interest due to their diverse applications, including high power lasers, opening switches, novel plasma processing applications and sputtering, EM absorbers and reflectors, remediation of gaseous pollutants, excimer lamps, and other noncoherent light sources. Atmospheric-pressure plasmas in air are of particular importance as they can be generated and maintained without vacuum enclosure and without any additional feed gases. Non-Equilibrium Air Plasmas at Atmospheric Pressure reviews recent advances and applications in the generation and maintenance of atmospheric-pressure plasmas. With contributions from leading international researchers, the coverage includes advances in atmospheric-pressure plasma source development, diagnostics and characterization, air plasma chemistry, modeling and computational techniques, and an assessment of the status and prospects of atmospheric-pressure air plasma applications. The extensive application sections make this book attractive for practitioners in many fields where technologies based on atmospheric-pressure air plasmas are emerging.

Download or read book Applications of Cold Plasma in Food Safety written by Tian Ding and published by Springer Nature. This book was released on 2021-11-08 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with a comprehensive overview of cold plasma technology for tackling the various food-related hazards in a wide range of food sectors. The principles and characteristics of cold plasma generation in gas and its interaction with liquids, as well as its combating modes of action for common hazards (e.g., bacteria, spores, biofilms, fungi, and fungal toxins) are emphasized in this book. It also presents the applications of cold plasma or its hurdles with other techniques to assure the microbiological safety of the key food classifications, including fruits, vegetables, cereals, grains, meat, aquatic products, liquid food products (e.g., juices, milk), nuts, spices, herbs, and food packaging. This book is useful for researchers to grasp the comprehensive understandings of how food safety can be controlled with cold plasma technology. This book also provides adequate information for engineers in food industry for better development and optimization of the plasma-generating systems. Government institutions that are responsible for food safety regulations can understand more knowledge about the intricacies and influencing factors, which should be considered for regulating the applications of cold plasma technology in food.