scholarly journals COMPLEX OF NUMERICAL MODELS FOR COMPUTATION OF AIR ION CONCENTRATION IN PREMISES

2016 ◽  
Vol 0 (2(62)) ◽  
pp. 16-24 ◽  
Author(s):  
M. M. Biliaiev ◽  
S. G. Tsygankova
Keyword(s):  
Numerical Models ◽  
Ion Concentration ◽  
Air Ion Concentration

scholarly journals Study on the change of negative air ion concentration and its influencing factors at different spatio-temporal scales

2020 ◽  
Vol 23 ◽  
pp. e01008 ◽  
Author(s):  
Hui Wang ◽  
Bing Wang ◽  
Xiang Niu ◽  
Qingfeng Song ◽  
Mingwen Li ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Ion Concentration ◽  
Temporal Scales ◽  
Spatio Temporal ◽  
Air Ion Concentration

STUDY OF THE EFFECT OF RELATIVE HUMIDITY ON THE OPERATING MODES OF THE IONIZER

2018 ◽  
pp. 52-54
Author(s):  
A.D. Rakhmatov ◽  
S.R. Namozov
Keyword(s):  
Relative Humidity ◽  
Ion Concentration ◽  
Storage Tanks ◽  
Air Humidity ◽  
Fruit Storage ◽  
Operating Modes ◽  
Relative Air Humidity ◽  
Concentration Of Ions ◽  
Theoretical Assumptions ◽  
Air Ion Concentration

When using electro-ionizers in the conditions of the fruit storage facilities, it is necessary to take into account the influence of environmental conditions of the electrical ionizers. A particularly important factor here is the relative humidity of the air in the storage tanks. At higher values of the relative humidity of air in the atmosphere of the fruit storage, air ion combine with water molecules to form heavy ions, as a result of which the volume concentration of ions decreases. To test these theoretical assumptions, we conducted studies of the operating parameters of the ionizer under condition of storage tanks high relative air humidity. Studies have shown that under conditions of high air humidity the concentration of ion decreases by 10–12% and at a distance of 1 meter from the ionizer, the air ion concentration is 1,6∙1013 ion/m3.

Study of Air Anion Concentration in Various Water Statuses

2012 ◽  
Vol 518-523 ◽  
pp. 241-244 ◽  
Author(s):  
Wei Wang ◽  
Feng Shi
Keyword(s):  
Wind Speed ◽  
Urban Planning ◽  
Relative Humidity ◽  
Ion Concentration ◽  
Anthropogenic Sources ◽  
Ecological Environment ◽  
Coastal Province ◽  
Mutual Relations ◽  
Air Ion Concentration ◽  
Planning And Construction

Atmospheric ions are produced by many natural and anthropogenic sources and their concentrations vary widely between different environments. In this study, we conducted in a southern coastal province of China, where we chose some typical sites to observe. The observations included negative air ion concentration, positive air icon concentration, wind speed, temperature and relative humidity, and negative air icon concentration in materials and plants. The results showed that negative air icon concentration changed more obviously in different water statuses, and showed a certain degree of mutual relations. In order to improve the urban ecological environment, the authors proposed the use of water and wind actively to increase the distribution of negative air anion concentration in urban planning and construction.

scholarly journals A Salinity Module for SWAT to Simulate Salt Ion Fate and Transport at the Watershed Scale

2019 ◽  
Author(s):  
Ryan T. Bailey ◽  
Saman Tavakoli-Kivi ◽  
Xiaolu Wei
Keyword(s):  
Soil Salinity ◽  
Best Management Practices ◽  
Management Practices ◽  
Numerical Models ◽  
Spatial Scales ◽  
Swat Model ◽  
Fate And Transport ◽  
Salt Transport ◽  
Ion Concentration ◽  
Watershed Scale

Abstract. Salinity is one of the most common water quality threats in river basins and irrigated regions worldwide. However, no available numerical models simulate all major processes affecting salt ion fate and transport at the watershed scale. This study presents a new salinity module for the SWAT model that simulates the fate and transport of 8 major salt ions (SO4, Ca, Mg, Na, K, Cl, CO3, HCO3) in a watershed system. The module accounts for salt transport in surface runoff, soil percolation, lateral flow, groundwater, and streams, and equilibrium chemistry reactions in soil layers and the aquifer. The module consists of several new subroutines that are imbedded within the SWAT modelling code and one input file containing soil salinity and aquifer salinity data for the watershed. The model is applied to a 732 km2 salinity-impaired irrigated region within the Arkansas River Valley in southeastern Colorado, and tested against root zone soil salinity, groundwater salt ion concentration, groundwater salt loadings to the river network, and in-stream salt ion concentration. The model can be a useful tool in simulating baseline salinity transport and investigating salinity best management practices in watersheds of varying spatial scales worldwide.

scholarly journals Effect of Atmospheric Pollution on Air Ion Concentration

2017 ◽  
Vol 113 ◽  
pp. 231-237 ◽  
Author(s):  
Andris Skromulis ◽  
Juris Breidaks ◽  
Edmunds Teirumnieks
Keyword(s):  
Atmospheric Pollution ◽  
Ion Concentration ◽  
Air Ion Concentration

scholarly journals Energy Conversion in Protocells with Natural Nanoconductors

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Jian Xu ◽  
T. Kyle Vanderlick ◽  
David A. LaVan
Keyword(s):  
Energy Conversion ◽  
Large Scale ◽  
Numerical Models ◽  
Salt Water ◽  
Ion Concentration ◽  
Small Scale ◽  
Lipid Bilayer Membranes ◽  
Concentration Gradients ◽  
Supported Lipid Bilayer ◽  
Conversion Scheme

While much nanotechnology leverages solid-state devices, here we present the analysis of designs for hybrid organic-inorganic biomimetic devices, “protocells,” based on assemblies of natural ion channels and ion pumps, “nanoconductors,” incorporated into synthetic supported lipid bilayer membranes. These protocells mimic the energy conversion scheme of natural cells and are able to directly output electricity. The electrogenic mechanisms have been analyzed and designs were optimized using numerical models. The parameters that affect the energy conversion are quantified, and limits for device performance have been found using numerical optimization. The electrogenic performance is compared to conventional and emerging technologies and plotted on Ragone charts to allow direct comparisons. The protocell technologies summarized here may be of use for energy conversion where large-scale ion concentration gradients are available (such as the intersection of fresh and salt water sources) or small-scale devices where low power density would be acceptable.

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