Ionization Impact on the Air Cleaning Efficiency in the Interior

Černecký, Jozef; Valentová, Karina; Pivarčiová, Elena; Božek, Pavol

doi:10.1515/msr-2015-0023

Cited by 21 publications

(17 citation statements)

References 26 publications

(27 reference statements)

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“…PM concentration was reduced by up to two orders of magnitude after 2 hours of treatment by NAI generator in an unoccupied office room (50 m 3 ) [ 144 ]. Many other similar reports showed the high efficiency of NAIs in PM removal ( Table 3 ; [ 138 , 140 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 ]). Evidence showed that many factors might affect PM reducing efficiency by NAIs ( Table 3 ; [ 34 , 139 , 150 , 153 ]).…”

Section: The Release Of Negative Air Ions As An Efficient Way To Rmentioning

confidence: 73%

“…Many other similar reports showed the high efficiency of NAIs in PM removal ( Table 3 ; [ 138 , 140 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 ]). Evidence showed that many factors might affect PM reducing efficiency by NAIs ( Table 3 ; [ 34 , 139 , 150 , 153 ]). For example, PM removal rate was related to particle concentrations, particle sizes, and the ventilation conditions and a model was raised to compute their relationship [ 139 ].…”

Section: The Release Of Negative Air Ions As An Efficient Way To Rmentioning

confidence: 73%

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Negative Air Ions and Their Effects on Human Health and Air Quality Improvement

Jiang

Ramachandran

2018

IJMS

154

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Negative air ions (NAIs) have been discovered for more than 100 years and are widely used for air cleaning. Here, we have carried out a comprehensive reviewing on the effects of NAIs on humans/animals, and microorganisms, and plant development. The presence of NAIs is credited for increasing psychological health, productivity, and overall well-being but without consistent or reliable evidence in therapeutic effects and with controversy in anti-microorganisms. Reports also showed that NAIs could help people in relieving symptoms of allergies to dust, mold spores, and other allergens. Particulate matter (PM) is a major air pollutant that affects human health. Experimental data showed that NAIs could be used to high-efficiently remove PM. Finally, we have reviewed the plant-based NAI release system under the pulsed electric field (PEF) stimulation. This is a new NAI generation system which releases a huge amount of NAIs under the PEF treatment. The system may be used to freshen indoor air and reduce PM concentration in addition to enriching oxygen content and indoor decoration at home, school, hospital, airport, and other indoor areas.

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Section: The Release Of Negative Air Ions As An Efficient Way To Rmentioning

confidence: 73%

Section: The Release Of Negative Air Ions As An Efficient Way To Rmentioning

confidence: 73%

Negative Air Ions and Their Effects on Human Health and Air Quality Improvement

Jiang

Ramachandran

2018

IJMS

154

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“…We have obtained a mathematical model for determining the dynamic coefficient, which characterizes the influence of vibrations in the technological system on the value of the cut-off layer when peripheral grinding [9,14]:…”

Section: Methodology Of Researchmentioning

confidence: 99%

Workpiece Temperature Variations During Flat Peripheral Grinding

Смирнов

Repko

2018

Management Systems in Production Engineering

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Abstract:The paper presents the results of researches of temperature variations during flat peripheral grinding. It is shown that the temperature variations of the workpiece can reach 25...30% of the average values, which can lead to some thermal defects. A nonlinear two-dimensional thermophysical grinding model is suggested. It takes into account local changes in the cutting conditions: the fluctuation of the cut layer and the cutting force, the thermal impact of the cutting grains, and the presence of surface cavities in the intermittent wheel. For the numerical solution of the problem, the method of finite differences is adapted. Researches of the method stability and convergence are made, taking into account the specific nature of the problem. A high accuracy of the approximation of the boundary conditions and the nonlinear heat equation is provided. An experimental verification of the proposed thermophysical model was carried out with the use of installation for simultaneous measurement of the grinding force and temperature. It is shown that the discrepancy between the theoretical and experimental values of the grinding temperature does not exceed 5%. The proposed thermophysical model makes it possible to predict with high accuracy the temperature variations during grinding by the wheel periphery.

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“…American experience, resulting from the university innovative entrepreneurship [17,20,44], gives some practical guidelines which can be used on a large scale. The same approach can be found in the aspect of the organization culture impact on innovations [21,22,45,46]. Some companies innovate towards sustainability to improve their socio-environmental and economic performance [2].…”

Section: Literature Reviewmentioning

confidence: 99%

Integrated Commercialization Model of Research and Development Project Results

Malec

Stańczak

Ricketts

2020

Management Systems in Production Engineering

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The need to undertake research work on the commercialization of results from scientific research and development projects emerged from the Author’s professional experience as well as the incomprehensive literature on the role of Polish research institutes in the process of technology transfer and commercialization of innovative solutions, in particular in the case of mining machinery and equipment. From the available literature, the commercialization of research results and technology transfer are analyzed from the perspectives of academia and entrepreneurs, but there is no analysis of this challenge from the perspective of the research institutes which create the majority of innovative solutions implemented in Poland. The research results presented in this article identify and highlight not only the main factors which facilitate knowledge transfer in the widest sense, but also the barriers which should be overcome. An integrated commercialization model of research results, developed by the Author, is described in the article. Some examples of other models, used to assess innovative technology transfer processes, i.e. Transfer model of the Cracow University of Technology, Jolly’s model, United model (science + market), Trzmielak’s linear – subsequent model, Network – interactive model and IpOp model, are also presented. Special attention is paid to the process of generating innovative ideas and to the area of efficient project management. Based on the integrated model, practical management recommendations for the successful commercialization of innovative solutions are given. It is highlighted that the integrated model can be treated as a diagnostic tool, enabling an efficient assessment of the transfer of research results and commercialization of innovative solutions.

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Ionization Impact on the Air Cleaning Efficiency in the Interior

Cited by 21 publications

References 26 publications

Negative Air Ions and Their Effects on Human Health and Air Quality Improvement

Negative Air Ions and Their Effects on Human Health and Air Quality Improvement

Workpiece Temperature Variations During Flat Peripheral Grinding

Integrated Commercialization Model of Research and Development Project Results

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