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Автор: Grafiati
Опубліковано: 6 вересня 2023

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Статті в журналах з теми "Atmospheric electrical research"

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Hunting, Ellard R., James Matthews, Pablo Fernández de Arróyabe Hernáez, Sam J. England, Konstantinos Kourtidis, Kuang Koh, Keri Nicoll, et al. "Challenges in coupling atmospheric electricity with biological systems." International Journal of Biometeorology 65, no. 1 (July 14, 2020): 45–58. http://dx.doi.org/10.1007/s00484-020-01960-7.

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AbstractThe atmosphere is host to a complex electric environment, ranging from a global electric circuit generating fluctuating atmospheric electric fields to local lightning strikes and ions. While research on interactions of organisms with their electrical environment is deeply rooted in the aquatic environment, it has hitherto been confined to interactions with local electrical phenomena and organismal perception of electric fields. However, there is emerging evidence of coupling between large- and small-scale atmospheric electrical phenomena and various biological processes in terrestrial environments that even appear to be tied to continental waters. Here, we synthesize our current understanding of this connectivity, discussing how atmospheric electricity can affect various levels of biological organization across multiple ecosystems. We identify opportunities for research, highlighting its complexity and interdisciplinary nature and draw attention to both conceptual and technical challenges lying ahead of our future understanding of the relationship between atmospheric electricity and the organization and functioning of biological systems.
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Bennett, A. J., and R. G. Harrison. "A simple atmospheric electrical instrument for educational use." Advances in Geosciences 13 (July 30, 2007): 11–15. http://dx.doi.org/10.5194/adgeo-13-11-2007.

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Abstract. Electricity in the atmosphere provides an ideal topic for educational outreach in environmental science. To support this objective, a simple instrument to measure real atmospheric electrical parameters has been developed and its performance evaluated. This project compliments educational activities undertaken by the Coupling of Atmospheric Layers (CAL) European research collaboration. The new instrument is inexpensive to construct and simple to operate, readily allowing it to be used in schools as well as at the undergraduate University level. It is suited to students at a variety of different educational levels, as the results can be analysed with different levels of sophistication. Students can make measurements of the fair weather electric field and current density, thereby gaining an understanding of the electrical nature of the atmosphere. This work was stimulated by the centenary of the 1906 paper in which C. T. R. Wilson described a new apparatus to measure the electric field and conduction current density. Measurements using instruments based on the same principles continued regularly in the UK until 1979. The instrument proposed is based on the same physical principles as C. T. R. Wilson's 1906 instrument.
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Tulekov, Ye, А. К. Morzabaev, V. S. Makhmutov, and V. I. Yerkhov. "Study of the electric field variation based on preliminary observations at the ENU cosmophysical complex in 2020." Bulletin of the Karaganda University. "Physics" Series 102, no. 2 (June 30, 2021): 25–32. http://dx.doi.org/10.31489/2021ph2/25-32.

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The atmospheric electric field Ez is the most urgent problem of study of the physics of the atmosphere and the processes occurring in it. The conducted studies show the relationship of the electric field with atmospheric processes. Monitoring its changes is necessary to solve practical problems. This article presents brief characteristics of the installation of the EFM-100 electrostatic fluxmeter of the scientific cosmophysical experimental complex at the L.N. Gumilyov Eurasian National University (ENU) and its experimental data obtained in 2020. The article presents the results of observation of atmospheric-electrical characteristics near the Earth's surface and monitoring of the electric field of the atmosphere of the city of Nur-Sultan, in particular, estimates of the variation of the electric field of the surface layer of the atmosphere during sunrise and sunset based on data obtained by the EFM-100 fluxmeter. The comparison of meteorological data with the data of the electric field strength of the atmosphere is given. The analysis of the days and months in September and October 2020, when the conditions of “good weather” were manifested, was carried out. The series of electric field data obtained at other measuring stations show the characteristic periodicity of the electric field behavior. It is established that the value of the atmospheric electric field increases during sunrise with the manifestation of the solar terminator effect. It is interesting to study the relationship between the magnitude of the electric field of the atmosphere and the intensity of the cosmic ray flux, especially in the case of Forbush effects. The data of the ENU ground-based experimental complex allows us to conduct research on the study of atmospheric physics, including atomic electricity, as well as their interaction with cosmic rays and meto-conditions.
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Li, Zhuolin, Dongmei Fu, and Zibo Pei. "Modeling research of initial atmospheric corrosion of Q235 carbon steel based on electrical resistance probe." Anti-Corrosion Methods and Materials 68, no. 2 (April 5, 2021): 45–52. http://dx.doi.org/10.1108/acmm-04-2020-2295.

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Анотація:
Purpose This paper aims to discover the mathematical model for Q235 carbon steel corrosion date acquired in the initial stage of atmospheric corrosion using electrical resistance probe. Design/methodology/approach In this paper, mathematical approaches are used to construct a classification model for atmospheric environmental elements and material corrosion rates. Findings Results of the experiment show that the corrosion data can be converted into corrosion depth for calculating corrosion rate to obtain corrosion kinetics model and conform corrosion acceleration phase. Combined with corresponding atmospheric environmental elements, a real time grade subdivision model for corrosion rate can be constructed. Originality/value These mathematical models constructed by real time corrosion data can be well used to research the characteristics about initial atmospheric corrosion of Q235 carbon steel.
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Bordusau, S. V., S. I. Madveika, A. L. Barakhoyeu, O. I. Tsikhan, and A. A. Maiseyeu. "Research stand for microplasma surface treatment of materials at atmospheric pressure." Doklady BGUIR 19, no. 6 (October 1, 2021): 66–73. http://dx.doi.org/10.35596/1729-7648-2021-19-6-66-73.

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A research stand for microplasma treatment of object surfaces with the ability to move the discharge zone along the object using a program-controlled linear stepper motor has been developed. The design of the stand allows the use of different types of plasma generation systems, as well as processing with feeding of various gases such as air, nitrogen, oxygen, etc. into the discharge zone. The research bench is equipped with measuring equipment for monitoring the electrical and physical characteristics of the discharge (digital oscilloscopes, optical emission spectrometer, air ion meter, etc.). A microhardness tester, goniometer, interference microscope, tribometer, tensile testing machine, etc. can be used to further evaluate the quality and characteristics of the treated surfaces. Examples of the electrical characteristics of discharge devices tested as part of the research stand, optical emission spectroscopy of plasma, and results of measurements of the contact angle of treated objects surfaces are given.
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Wang, Peng, and Liangjun Xu. "Research on the electrical contact degradation model of plug-in connectors under corrosion and wear." Materials Express 11, no. 5 (May 1, 2021): 758–65. http://dx.doi.org/10.1166/mex.2021.1928.

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Failures due to corrosion are common for connectors operating under atmospheric environment. Results of previous studies lacked universal applicability and neglected the degradation process of contact resistance. Also, wear is rarely considered in studies on corrosion degradation, which is an inevitable mechanical process for plug connectors. Considering these problems, the atmospheric corrosion process and copper dynamics were analyzed. The consistency of the atmospheric corrosion mechanism was used to study the local corrosion degradation law and its influencing factors. The wear mechanism on corrosion degradation was determined through the analysis of the influencing factors. The corrosion model of the gold-plated parts under atmospheric wear was established. To study the degradation process of electrical contacts, a degradation model of contact resistance based on the multi-spot contact mechanism was established combined with the previous corrosion degradation model. Experimentally, the corrosion spot density increases as a function of time and varies with plated thickness, whereas the corrosion spot size distribution is still relatively independent of time. The skew phenomenon appears in the cumulative distribution probability of contact resistance as exposure time increases. Whereas the degradation of electrical contact resistance increases as a function of time, the median remains relatively unchanged. A brief analysis of the contact reliability under wear and corrosive environments was also carried out.
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Bór, József, Gabriella Sátori, Veronika Barta, Karolina Szabóné-André, Judit Szendrői, Viktor Wesztergom, Tamás Bozóki, Attila Buzás, and Dávid Koronczay. "Measurements of atmospheric electricity in the Széchenyi István Geophysical Observatory, Hungary." History of Geo- and Space Sciences 11, no. 1 (April 8, 2020): 53–70. http://dx.doi.org/10.5194/hgss-11-53-2020.

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Abstract. The Széchenyi István Geophysical Observatory, also known as the Nagycenk Geophysical Observatory (NCK), was established in 1957. It has been the only measurement site in Hungary where observations of various parameters of the atmospheric global electric circuit are made in the framework of organized research under the umbrella of the Hungarian Academy of Sciences (MTA). Measurements of the atmospheric electrical potential gradient (PG) and Schumann resonances (SRs) running quasi-continuously in the observatory for decades provide an invaluable source of information for geophysical research. This paper gives an overview on the history of the observatory and particularly on various atmospheric electricity (AE) measurements on-site to commemorate the efforts and excellence of the people who served atmospheric sciences by dedicating their lives to obtaining high-quality, reliable data and scientific achievements at the highest possible level.
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Popova, Kateryna, and Tomáš Prošek. "Corrosion Monitoring in Atmospheric Conditions: A Review." Metals 12, no. 2 (January 18, 2022): 171. http://dx.doi.org/10.3390/met12020171.

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Анотація:
A variety of techniques are available for monitoring metal corrosion in electrolytes. However, only some of them can be applied in the atmosphere, in which case a thin discontinuous electrolyte film forms on a surface. In this review, we describe, evaluate and compare both traditional and state-of-the-art real-time corrosion monitoring techniques to identify those suitable for atmospheric conditions. For atmospheric corrosion monitoring (ACM), electrochemical impedance spectroscopy (EIS), electrochemical noise (EN), electrical resistance (ER) probes, quartz crystal microbalance (QCM), radio-frequency identification sensors (RFID), fibre optic corrosion sensors (FOCS) and respirometry, the underlying principles, characteristics and application examples are described, and their advantages and drawbacks outlined. Finally, the techniques are compared in terms of their sensitivity, ease of setup, data processing, ability to identify underlying corrosion mechanisms and applicability in different fields of atmospheric corrosion protection and research.
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Li, Zhuolin, Dongmei Fu, Ying Li, Gaoyuan Wang, Jintao Meng, Dawei Zhang, Zhaohui Yang, Guoqing Ding, and Jinbin Zhao. "Application of An Electrical Resistance Sensor-Based Automated Corrosion Monitor in the Study of Atmospheric Corrosion." Materials 12, no. 7 (April 1, 2019): 1065. http://dx.doi.org/10.3390/ma12071065.

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Анотація:
An automated corrosion monitor, named the Internet of Things atmospheric corrosion monitor (IoT ACM) has been developed. IoT ACM is based on electrical resistance sensor and enables accurate and continuous measurement of corrosion data of metallic materials. The objective of this research is to study the characteristics of atmospheric corrosion by analyzing the acquired corrosion data from IoT ACM. Employing data processing and data analysis methods to research the acquired corrosion data of steel, the atmospheric corrosion characteristics implied in the corrosion data can be discovered. Comparing the experiment results with the phenomenon of previous laboratory experiment and conclusions of previously published reports, the research results are tested and verified. The experiment results show that the change regulation of atmospheric corrosion data in the actual environment is reasonable and normal. The variation of corrosion depth is obviously influenced by relative humidity, temperature and part of air pollutants. It can be concluded that IoT ACM can be well applied to the conditions of atmospheric corrosion monitoring of metallic materials and the study of atmospheric corrosion by applying IoT ACM is effective and instructive under an actual atmospheric environment.
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Buguet, Magalie, Philippe Lalande, Pierre Laroche, Patrice Blanchet, Aurélie Bouchard, and Arnaud Chazottes. "Thundercloud Electrostatic Field Measurements during the Inflight EXAEDRE Campaign and during Lightning Strike to the Aircraft." Atmosphere 12, no. 12 (December 8, 2021): 1645. http://dx.doi.org/10.3390/atmos12121645.

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The AMPERA (Atmospheric Measurement of Potential and ElectRic field on Aircraft) electric field network was integrated on the Falcon 20 (F20) of SAFIRE (the French facility for airborne research) in the framework of EXAEDRE (EXploiting new Atmospheric Electricity Data for Research and the Environment) project. From September 2018, an in-flight campaign was performed over Corsica (France) to investigate the electrical activity in thunderstorms. During this campaign, eight scientific flights were done inside or in the vicinity of a thunderstorm. The purpose of this paper is to present the AMPERA system and the atmospheric electrostatic field recorded during the flights, and particularly during the pass inside electrified clouds, in which the aircraft was struck by lightning. The highest value of atmospheric electrostatic field recorded during these flights was around 79 kV·m−1 at 8400 m of altitude. A normalization of these fields is done by computing the reduced atmospheric electrostatic field to take into account the altitude effect (ratio between the atmospheric electrostatic field and the air density). Most of the significant values of reduced atmospheric electrostatic field magnitude retrieved during this campaign occur between around 5.5 and 9.5 km and are included between 50 and 100 kV·m−1. The highest value measured of the reduced atmospheric electrostatic field is 194 kV·m−1 during the lightning strike of the F20. The merging of these results with data from former campaigns suggests that there is a threshold (depending of the aircraft size) for the striking of an aircraft.
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Дисертації з теми "Atmospheric electrical research"

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Stenberg, Gustav. "Advancement of atmospheric research tools." Licentiate thesis, Luleå : Luleå University of Technology, 2007. http://epubl.ltu.se/1402-1757/2007/14/.

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Книги з теми "Atmospheric electrical research"

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R, Allen D., and United States. National Aeronautics and Space Administration., eds. The 4-day wave as observed from the Upper Atmosphere Research Satellite microwave limb sounder. [Washington, DC: National Aeronautics and Space Administration, 1998.

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Office, General Accounting. Air pollution: Improved atmospheric model should help focus acid rain debate : report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. Washington, D.C: GAO, 1989.

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Office, General Accounting. Air pollution: EPA's process for planning, budgeting, and reviewing research : briefing report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. Washington, D.C: The Office, 1987.

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Office, General Accounting. Air pollution: EPA's process for planning, budgeting, and reviewing research : briefing report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. Washington, D.C: The Office, 1987.

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5

Office, General Accounting. Air pollution: Efforts to control ozone in areas of Illinois, Indiana, and Wisconsin : briefing report to congressional requesters. Washington, D.C: The Office, 1988.

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6

Office, General Accounting. Air pollution: Improvements needed in detecting and preventing violations : report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. Washington, D.C: GAO, 1990.

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Office, General Accounting. Air pollution: EPA needs more data from FHWA on changes to highway projects : report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. Washington, D.C: GAO, 1990.

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Office, General Accounting. Air pollution: Changes needed in EPA's program that assesses radon measurement firms : report to the Chairman, Committee on Science, Space, and Technology, House of Representatives. Washington, D.C: U.S. General Accounting Office, 1990.

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9

Office, General Accounting. Air pollution: Emission sources regulated by multiple Clean Air Act provisions : report to the Chairman, Subcommittee on Clean Air, Wetlands, Private Property, and Nuclear Safety, Commmittee on Environment and Public Works, U.S. Senate. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): U.S. General Accounting Office, 2000.

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10

Office, General Accounting. Air pollution: EPA's strategy to control emissions of benzene and gasoline vapor : report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. Washington, D.C: GAO, 1985.

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Частини книг з теми "Atmospheric electrical research"

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Goss, W. M., Claire Hooker, and Ronald D. Ekers. "Ionospheric Research, 1895–1935." In Historical & Cultural Astronomy, 39–51. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-07916-0_5.

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Анотація:
AbstractPawsey’s initial foray into research was concerned with an area of applied science –investigations into how “atmospherics” (electrical disturbances in the atmosphere) and ionospheric turbulence affected radio communications. In this chapter we explore the general intellectual background to this science. We return to our account of Pawsey’s development in Chap. 6.
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Goss, W. M., Claire Hooker, and Ronald D. Ekers. "To the Cavendish Laboratory of the University of Cambridge, 1931." In Historical & Cultural Astronomy, 53–68. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-07916-0_6.

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AbstractFrom the 1851 Exhibition Scholarship Committee to Pawsey on 1 October 1931:Pawsey started out in research in the midst of excitement over the possibilities of radio communications and the iteratively developing physical understanding of the ionosphere and of the equipment that might be used to investigate it. During 1926–28 he completed his BSc at the University of Melbourne, Victoria. In 1929 he began a Master’s Degree, which was at that time a research-only degree, under the direction of Professor T.H. Laby. He was supported by receiving the M.J. Bartlett Research Scholarship. Presumably this, along with his work as a tutor in Physics at Queens College, provided him with a small, but independent, income. He embarked on a study of “atmospherics”—electrical disturbances in the atmosphere that Appleton, at King’s College, London, and others had linked in part with thunderstorm activity—and their impact on radio broadcasting. From January 1930 to August 1931, he carried out observations using a cathode ray direction finder, working with George H. Munro and Lenard Huxley as part of the Australian Radio Research Board (RRB). Pawsey wrote in 1933: “We were able to give strong evidence that all atmospherics originate in lightning flashes, and made measurements of intensity enabling the distance of the thunderstorms to be roughly determined.” (Ratcliffe & Pawsey, 1933)
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Qiu, Demin, Bo Liang, Tianyu Pan, Yuxuan Li, Haitao Fan, Qing Sun, Hongchao DiAO, SHAO Junfei, Maolin Xie, and Shaohui Wei. "Research on Atmosphere Refraction Modification of Radio Wave on TT&C System in Close-Shore Environment." In Lecture Notes in Electrical Engineering, 425–40. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0014-1_36.

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Xu, Dan, Hua Huang, and Jing-Jie Bo. "The Research About Explosive Gas Atmosphere and Explosion Proof Technique of Waste Gas Treatment System in Nuclear Power Plant." In Lecture Notes in Electrical Engineering, 49–57. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3361-2_6.

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He, Dakuo, Kai Zhang, Zhen Zhang, and Shouxin Sun. "Research of Monitoring Method for the Protection of Nitrogen-Based Atmosphere of Heat Treatment Furnaces Based on DPCA." In Proceedings of the 2015 International Conference on Electrical and Information Technologies for Rail Transportation, 269–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49370-0_28.

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6

Rasouli, Milad, Nadia Fallah, and Kostya (Ken) Ostrikov. "Lung Cancer Oncotherapy through Novel Modalities: Gas Plasma and Nanoparticle Technologies." In Lung Cancer - Modern Multidisciplinary Management. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95494.

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Анотація:
Cold atmospheric pressure plasma (CAP) is emerging as new healthcare technology and it has a high potential through physical and chemical effects for cancer treatment. Recently, CAP, plasma activated liquid (PAL), and nanomaterial have been significant advances in oncotherapy. Reactive oxygen-nitrogen species (RONS), electrical field, and other agents generated by CAP interact with cells and induce selective responses between the malignant and normal cells. Nanomedicine enhances therapeutic effectiveness and decreases the side effects of traditional treatments due to their target delivery and dispersion in tumor tissue. There are various nanocarriers (NCs) which based on their properties can be used for the delivery of different agents. The combination of gas plasma and nanomaterials technologies is a new multimodal treatment in cancer treatment, therefore, is expected that the conjunction of these technologies addresses many of the oncology challenges. This chapter provides a framework for current research of NC and gas plasma therapies for lung cancer. Herein, we focus on the application of gas plasmas and nanotechnology to drug and gene delivery and highlight several outcomes of its. The types and features of the mentioned therapeutics strategy as novel classes for treating lung cancer individually and synergistic were examined.
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Pattani, Ketaki Anandkumar, and Sunil Gautam. "Introduction to Meteorology and Weather Forecasting." In Artificial Intelligence of Things for Weather Forecasting and Climatic Behavioral Analysis, 1–15. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-3981-4.ch001.

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Meteorology refers to the scientific study and analysis of weather conditions and atmospheric phenomenon on the earth, processes that cause these weather conditions, and their future predictions. Not just limiting to prediction, meteorologists note the physical conditions of the atmosphere above them, and they study the raw data from maps, satellite, and radar. Forecasts are highly needed for applications that are tailored to specific industries. Gas and electric utilities, for example, may need to have forecasts of temperature within one or two degrees a day ahead of time, or government may need to have data of rainfall for the areas having lower ground level to predict water overflow. The chapter provides a detailed introduction to weather forecasting, its requirements and types of forecasts, and its applications. Importance of data, weather prediction models and methods, machine learning approaches, and baseline measures in the weather prediction are also discussed. Thereby, it opens up an area of research and future developments in this direction.
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Col, Basak Gokce, Sergen Tuggum, and Seydi Yıkmış. "Non-Thermal Food Preservation Methods in the Meat Industry." In Research Anthology on Food Waste Reduction and Alternative Diets for Food and Nutrition Security, 147–62. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-5354-1.ch007.

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The most commonly used meat preservation methods include cooling, freezing, drying, vacuum packing, and curing. Meat quality is impaired by a wide range of changes including physical, chemical, microbiological, and enzymatic reactions. Food manufacturers focus on processes that require fewer chemical additives to meet the increased demand of consumers and to obtain more natural, healthy, and nutritious meat products. Non-thermal food preservation methods are one of the new trends to minimise thermal effects on texture, nutritional value, and flavor losses of meats. The chapter focuses on two novel approaches; non-thermal (Pulsed Electric Field) and Atmospheric Pressure Cold Plasma (APCP) Technologies.
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Singh, Sukhmander, Sanjeev Kumar, Shravan Kumar Meena, and Sujit Kumar Saini. "Introduction to Plasma Based Propulsion System: Hall Thrusters." In Propulsion - New Perspectives and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96916.

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Technically, there are two types of propulsion systems namely chemical and electric depending on the sources of the fuel. Electrostatic thrusters are used for launching small satellites in low earth orbit which are capable to provide thrust for long time intervals. These thrusters consume less fuel compared to chemical propulsion systems. Therefore for the cost reduction interests, space scientists are interested to develop thrusters based on electric propulsion technology. This chapter is intended to serve as a general overview of the technology of electric propulsion (EP) and its applications. Plasma based electric propulsion technology used for space missions with regard to the spacecraft station keeping, rephrasing and orbit topping applications. Typical thrusters have a lifespan of 10,000 h and produce thrust of 0.1–1 N. These devices have E→×B→ configurations which is used to confine electrons, increasing the electron residence time and allowing more ionization in the channel. Almost 2500 satellites have been launched into orbit till 2020. For example, the ESA SMART-1 mission (Small Mission for Advanced Research in Technology) used a Hall thruster to escape Earth orbit and reach the moon with a small satellite that weighed 367 kg. These satellites carrying small Hall thrusters for orbital corrections in space as thrust is needed to compensate for various ambient forces including atmospheric drag and radiation pressure. The chapter outlines the electric propulsion thruster systems and technologies and their shortcomings. Moreover, the current status of potential research to improve the electric propulsion systems for small satellite has been discussed.
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Ahmed, Shakeel. "Realizing the Benefits of Energy Harvesting for IoT." In Role of IoT in Green Energy Systems, 144–55. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-6709-8.ch006.

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Анотація:
Different types of energy which generally fulfill the requirements of computing are mostly from thermal, mechanical, solar, wind, acoustic, and wave. Typically, IoT devices are powered by batteries that have limited lifetime, and thus these IoT devices need to be self-powered or require supportive energy sources that uninterruptedly power IoT devices. Energy harvesting is one of the techniques that can be applied to power these devices, which is a procedure of apprehending energy from lone or more energy from renewable sources in the proximate atmosphere known as environmental energy which can be renovated into usable electrical energy. Numerous researches are being carried out to harvest energy. This chapter is the extended version of the previous work carried out and analyses the present works on the application of IoT in energy harvesting systems and extant different research works carried out by the investigators to classify them.
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Тези доповідей конференцій з теми "Atmospheric electrical research"

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Kupovykh, G. V., A. G. Klovo, T. V. Kudrinskaya, D. V. Timoshenko, and S. S. Svidelskiy. "Atmospheric-electrical research: theory and experiment." In Scientific and Methodological Conference "Modern Computer Technologies". Southern Federal University, 2020. http://dx.doi.org/10.18522/mod.comp.tech.2020.1.13.

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Vasileva, Margreta, Neli Velikova, and Trayan Dimitrov. "Research of atmospheric overvoltages with a reverse discharge." In 2016 19th International Symposium on Electrical Apparatus and Technologies (SIELA). IEEE, 2016. http://dx.doi.org/10.1109/siela.2016.7543063.

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Liu, Yanwu. "Research on Laser Atmospheric Transmittance on the Sea." In 2010 International Conference on Electrical and Control Engineering (ICECE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icece.2010.1339.

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Yellapragada, Srujana. "Surface Treatment of Polyester Fabric with Atmospheric Pressure Plasma." In MME Undergraduate Research Symposium. Florida International University, 2022. http://dx.doi.org/10.25148/mmeurs.010563.

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Анотація:
Polyethylene Terephthalate (PET) fabric, a recycled synthetic fiber, has been frequently studied to innovate increased usage in both the clothing and medical industry. Some include ways to dye the fabric so that it can be commercially used for the purpose of environmental conservation from frequent discard of nonrecyclable fabric. Some biomedical applications involve the application of plasma treatment to reduce bacteria adhesion and improve anti-bacterial properties on the fabric. However, neither has been successful due to a lack of understanding of the surface modification of PET fabric to enable such properties. The hypothesis is that hydrophobicity is an issue in this study. The goal is to modify the surface of PET cloth to obtain a hydrophilic property through atmospheric-pressure plasma surface modification. Dielectric barrier discharge (DBD) plasma irradiation is a technique involving the electrical discharge between two electrodes separated by an insulating barrier. At a constant peak voltage, the smoothly flowing argon gas is turned into plasma, and the plasma is applied to the PET cloth surface. New functional groups are made or altered and attached to the surface layer which changes the character of the membrane but not its bulk properties. This study analyzes and reports on changes in surface hydrophobicity. This process tested three parameters followed by the water contact angle, XPS, and FTIR analysis. PET fabric successfully gains a hydrophilic property through plasma treatment along with consistency in the results of surface modification from FTIR and XPS. However slight differences in results still do appear which must be further analyzed.
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Hu, Jianhua, and Roy G. Gordon. "Electrical and optical properties of doped tin and zinc oxide thin films by atmospheric pressure chemical vapor deposition." In Photovoltaic advanced research and development project. AIP, 1992. http://dx.doi.org/10.1063/1.42892.

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Sima, W., Caixin Sun, Xingliang Jiang, and Lichun Shu. "Research on the characteristics of outdoor insulation in complex atmospheric environment in China." In Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005). IEEE, 2005. http://dx.doi.org/10.1109/iseim.2005.4446028.

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Xu, Zhenbo, Xinglei Cui, Yangyang Zhou, and Zhi Fang. "Research on the method of enhancing the hydrophobicity of planar and cylindrical-curved ceramic by atmospheric pressure plasma jet." In 2022 IEEE 5th International Electrical and Energy Conference (CIEEC). IEEE, 2022. http://dx.doi.org/10.1109/cieec54735.2022.9846546.

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Shaffer, James, Saeid Zare, and Omid Askari. "Structure and Measurement of Atmospheric and High-Pressure Ignition Plasma." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73138.

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Abstract Experiments are conducted to understand atmospheric spark ignition process in more detail. The research done relates the electrical energy dissipated across the spark gap to the measured schlieren ignition volume. The result is the supplied electrical thermal energy. The study provides insight into the structure of plasma and the mechanisms which convert electrical power into heat. The research is done to support laminar burning speed calculations to increase accuracy and extend diagnostic techniques to conditions otherwise immeasurable. Typically, plasma measurements are taken via a Langmuir probe. However, for the automotive ignition plasma, this measurement technique is challenging because of the transient nature, high pressure, and temperatures involved. Therefore, several alternative techniques will be used in order to find the potential distribution of the plasma and unveil the structure of the plasma more specifically the cathode fall. Three different voltage measurements are taken in order to capture the cathode fall of the plasma. One method simply measures the potential using a high voltage probe. This method may be inaccurate because of the presence of charged ions, however, these results are compared to non-intrusive measurements where voltage data is extrapolated over various gaps sizes to zero length. It is generally agreed that the desired measurement for this work, the cathode fall, remain constant and depends on the composition of the gas and the electrode. Therefore, changing the system input power and the gap will only change the voltage drop across the bulk plasma. The linear change in voltage potential through variation of testing parameters like gap length can then be extrapolated to zero length of the bulk plasma or minimum energy value which should be equal the value of cathode fall and bulk plasma potential respectively. It was found that after excluding systemic losses such as electrical resistance and ignition coil inefficiencies, the primary loss within the plasma gap is the potential drop across the cathode sheath. Excluding the loss in the cathode fall results in a measured electrical data that is responsible for thermal discharge. In order to highlight the findings, electrical discharge energy is compared to the volume of the heated gas kernel in atmospheric air. Removal of the cathode fall data will show that the energy is proportional to the volume of heated gas whereas, before the change in energy dissipation between glow and arc plasmas prevented this relationship from being visible. The data and methods discussed in this research provides the means to determine the thermal energy of ignitions and sparks even when the spark is inaccessible or obscured. Further work will be done utilizing the power measurement found in this work in a model to predict the affected thermal spark volume. It is also proposed that further validation of the proposed measured electrical thermal energy should be compared to the energy measured with a calorimeter to determine any other inefficiencies in the plasma discharge process. Additionally, the experimentation done observes the cathode fall of only glow plasma, Additional work should be done to find the cathode fall of arc plasma.
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Bach, F. W., K. Möhwald, K. Hartz, K. Bobzin, N. Bagcivan, I. Petkovic, J. Schein, G. Forster, and S. Zimmermann. "Homogenization of Coating Properties in Atmospheric Plasma Spraying – Technical Objectives and First Results of a DFG Funded Research Group." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p0141.

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Abstract The disadvantage of plasma torches using conventional single cathode techniques is the occurrence of azimuthal and axial instabilities inside the plasma torch. This causes electrical power fluctuations which result in inhomogeneities of the plasma jet enthalpy and with that an uneven plasma particle interaction. Hence, variations in particle properties occur and consequently an uneven coating quality is produced. Using the triple-cathode technique these electrical power fluctuations were successfully reduced, resulting in a stationary plasma flow. Thus this technique appears to offer the potential to homogenize coating properties. Similar results have been shown for plasma torches with triple anode arrangements. The goal of this research group is to homogenize properties of plasma sprayed coatings using of 3-cathode and 3-anode technologies based on numerical simulations. The approach used is to subdivide the complete APS process into the areas plasma torch, free jet as well as coating formation and characteristics. By simulation of the individual areas and combination with experimental results the corresponding process parameters will be obtained for the desired coating properties.
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Janajreh, Isam, Rana Qudaih, Ilham Talab, and Zaki Al Nahari. "Atmospheric Wind Data Collection and Wind Turbine Analysis in UAE." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90288.

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Wind turbine technology has improved dramatically in the last two decades as demonstrated by their plummeting capital costs ($0.08/KW), the enhanced reliability, and the increased efficiency. Large-scale wind turbines and wind farms provided 94.1GW of electrical grid capacity in 2007, and are expected to reach 160 GW by 2010 according to WWEA. Wind energy is plentiful and sustainable energy source with an estimated potential capacity of 72 TW. In Denmark the inland and offshore implementation of wind energy generation adds 1/5 of their electrical grid capacity. In Germany, it is forecasted to attain 12.5% by early 2010. Offshore wind farms have lower ecological impact due to lack of land mortgage, easier transportation, and low perception of noise issue. In the gulf region, the generated power can fulfill the power needs of UAE’s islands, while the excess capacity can be channeled to the inland grids fulfilling the peak demand. In this work we will investigate the implementation of low-turning moment wind turbines in the UAE, suited for low wind speeds (∼3–5m/s) and that consists of two research components: (i) Collection of wind data, analysis, recommendation for implementation strategies, and using Masdar wind data to assess its characteristics and its fit for wind turbine implementation; (ii) Carry out flow analysis on a downwind, two-bladed, horizontal-axes wind turbine to investigate the flow lift, drag and wake characteristics on the tower blade interaction. The interaction is studied utilizing Arbitrary Lagrangian Eulerian method. Downwind turbines are self-aligned, pass up yaw mechanisms and its needed power, and have fewer moving parts that necessitate regular maintenance. These factors however play in favor of wind turbine that is subjected to low wind speed.
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Звіти організацій з теми "Atmospheric electrical research"

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BARKHATOV, NIKOLAY, and SERGEY REVUNOV. A software-computational neural network tool for predicting the electromagnetic state of the polar magnetosphere, taking into account the process that simulates its slow loading by the kinetic energy of the solar wind. SIB-Expertise, December 2021. http://dx.doi.org/10.12731/er0519.07122021.

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The auroral activity indices AU, AL, AE, introduced into geophysics at the beginning of the space era, although they have certain drawbacks, are still widely used to monitor geomagnetic activity at high latitudes. The AU index reflects the intensity of the eastern electric jet, while the AL index is determined by the intensity of the western electric jet. There are many regression relationships linking the indices of magnetic activity with a wide range of phenomena observed in the Earth's magnetosphere and atmosphere. These relationships determine the importance of monitoring and predicting geomagnetic activity for research in various areas of solar-terrestrial physics. The most dramatic phenomena in the magnetosphere and high-latitude ionosphere occur during periods of magnetospheric substorms, a sensitive indicator of which is the time variation and value of the AL index. Currently, AL index forecasting is carried out by various methods using both dynamic systems and artificial intelligence. Forecasting is based on the close relationship between the state of the magnetosphere and the parameters of the solar wind and the interplanetary magnetic field (IMF). This application proposes an algorithm for describing the process of substorm formation using an instrument in the form of an Elman-type ANN by reconstructing the AL index using the dynamics of the new integral parameter we introduced. The use of an integral parameter at the input of the ANN makes it possible to simulate the structure and intellectual properties of the biological nervous system, since in this way an additional realization of the memory of the prehistory of the modeled process is provided.
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