scholarly journals Magnetic Field Influence on The Properties of Water Treated by Reverse Osmosis

2019 ◽  
Vol 9 (4) ◽  
pp. 4433-4439 ◽  
Author(s):  
M. O. Karkush ◽  
M. D. Ahmed ◽  
S. M. A. Al-Ani
Keyword(s):  
Magnetic Field ◽  
Electrical Properties ◽  
Magnetic Fields ◽  
Reverse Osmosis ◽  
Water Use ◽  
Tap Water ◽  
Main Application ◽  
Swelling Soil ◽  
Field Influence ◽  
Magnetic Water

The current study is focused on reviewing the rapid growing of magnetic water use in different science fields and in measuring the influence of several intensities of magnetization on the chemical and electrical properties of tap water treated by reverse osmosis. This work includes water circulation for 24h in magnetic fields of intensities 500, 1000, 1500, and 2000G. The magnetization of water increases some ions in the water such as Mg, K, Na, Cl, and SiO2and decreases Ca and SO3. The main application of magnetic water is the improvement of the geotechnical properties of soft and swelling soil through precipitation of calcite in pores which increases the bond between soil particles and the strength of the soil.

scholarly journals Effects of Magnetic Fields on the Properties of Water Treatedt by Reversed Osmosis

2019 ◽  
Author(s):  
Mahdi O. Karkush ◽  
Mahmoud D. Ahmed ◽  
Salim M. Al-Ani
Keyword(s):  
Electrical Properties ◽  
Magnetic Fields ◽  
Reverse Osmosis ◽  
High Performance ◽  
Tap Water ◽  
Low Cost ◽  
Negative Ions ◽  
Near Future ◽  
Magnetic Water ◽  
Properties Of Soil

The current study focused on reviewing the rapid growing of using magnetic water in different fields of science and measure the influence of several intensities of magnetization on the chemical and electrical properties of tap water treated by reverse osmosis. The work includes circulation of water for 24 h. in magnetic fields of intensity 500, 1000, 1500, and 2000 G. The magnetization of water causes increasing some positive and negative ions in water such as (Mg, K, Na, Cl¯, Alkaline and SiO2) and decreasing some positive and negative ions (Ca and SO3). In the near future, the application of concepts of sustainability development in civil engineering have the to produce structures in harmony with these concepts through using of high-performance materials with less impacts on the environmental and have low cost. The main application of using magnetic water is improvement the geotechnical properties of soil through precipitation of calcite which increases the bond between soil particles and then strength of soil.

scholarly journals Magnetic field influence on electrical properties of human blood measured by impedance spectroscopy

2005 ◽  
Vol 26 (7) ◽  
pp. 564-570 ◽  
Author(s):  
M. Sosa ◽  
J. Bernal-Alvarado ◽  
M. Jiménez-Moreno ◽  
J.C. Hernández ◽  
G. Gutiérrez-Juárez ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electrical Properties ◽  
Impedance Spectroscopy ◽  
Human Blood ◽  
Field Influence

Effects of Low Magnetic Fields on Gold-YBCO Contacts

1989 ◽  
Vol 169 ◽  
Author(s):  
Yonhua Tzeng ◽  
Mitchell A. Belser
Keyword(s):  
Magnetic Field ◽  
Critical Temperature ◽  
Electrical Properties ◽  
Magnetic Fields ◽  
Contact Resistance ◽  
High Magnetic Field ◽  
High Current ◽  
Long Time ◽  
Low Magnetic Field ◽  
The Magnetic Field

AbstractThe effects of low magnetic field (0–40 Gauss) on electrical properties of gold-YBCO contacts are investigated. The contact resistance increases significantly with applied magnetic fields. For high magnetic field or when high current is flowing through the contact, the contact resistance decays after removing the magnetic field to a finite value greater than that is measured before the contact is exposed to the magnetic field and stays there for long time as long as the sample is kept below the superconductivity critical temperature.

scholarly journals The assessment of magnetic water treatment on formation calcium scale on reverse osmosis membranes

2018 ◽  
Vol 178 ◽  
pp. 09001
Author(s):  
Alexey Andrianov ◽  
Evgeny Orlov
Keyword(s):  
Calcium Carbonate ◽  
Water Treatment ◽  
Reverse Osmosis ◽  
Tap Water ◽  
Magnetic Treatment ◽  
Water Desalination ◽  
Feed Water ◽  
Calcium Deposits ◽  
Magnetic Water ◽  
Reverse Osmosis Membranes

Reverse osmosis is widely used technology for water desalination. The main problem with reverse osmosis is scaling which reduces the flow and selectivity of membranes. Normally, to prevent salt precipitation, chemicals are added to the feed water or water softening is applied. The literature data on the effect of magnetic treatment on the structure and properties of water and dissolved salts showed that there is no consensus among researchers on the mechanism of magnetic field action to prevent calcium deposits formation. The purpose of current work was to study the effect of magnetic water treatment on the rate of calcium carbonate scale formation on reverse osmosis membranes. Scaling tests were carried out on tap water using the spiral wound module with reverse osmosis membranes. Magnetic treatment efficiency was evaluated by comparison of scaling rate values (amount of calcium carbonate scales accumulated in membrane module) determined throughout experiments with and without magnetic device. The results obtained do not confirm the effect of magnetic treatment on calcium carbonate precipitate formation.

scholarly journals Water Use and Yield Responses of Chile Pepper Cultivars Irrigated with Brackish Groundwater and Reverse Osmosis Concentrate

Horticulturae ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 27
Author(s):  
Gurjinder S. Baath ◽  
Manoj K. Shukla ◽  
Paul W. Bosland ◽  
Stephanie J. Walker ◽  
Rupinder K. Saini ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Reverse Osmosis ◽  
Water Use ◽  
Arid Regions ◽  
Tap Water ◽  
Piecewise Linear ◽  
Chile Pepper ◽  
Chile Peppers ◽  
Yield Responses ◽  
Ro Concentrate

Freshwater availability is declining in most of semi-arid and arid regions across the world, including the southwestern United States. The use of marginal quality groundwater has been increasing for sustaining agriculture in these arid regions. Reverse Osmosis (RO) can treat brackish groundwater, but the possibility of using an RO concentrate for irrigation needs further exploration. This greenhouse study evaluates the water use and yield responses of five selected chile pepper (Capsicum annuum L.) cultivars irrigated with natural brackish groundwater and RO concentrate. The four saline water treatments used for irrigation were tap water with an electrical conductivity (EC) of 0.6 dS m−1 (control), groundwater with EC 3 and 5 dS m−1, and an RO concentrate with EC 8 dS m−1. The evapotranspiration (ET) of all chile pepper cultivars decreased and the leaching fraction (LF) increased, particularly in the 5 dS m−1 and 8 dS m−1 irrigation treatments. Based on the water use efficiency (WUE) of the selected chile pepper cultivars, brackish water with an EC ≤ 3 dS/m could be used for irrigation in scarce freshwater areas while maintaining the appropriate LFs. A piecewise linear function resulted in a threshold soil electrical conductivity (ECe) ranging between 1.0–1.3 dS m−1 for the tested chile pepper cultivars. Both piecewise linear and sigmoid non-linear functions suggested that the yield reductions in chile peppers irrigated with Ca2+ rich brackish groundwater were less than those reported in studies using an NaCl-dominant saline solution. Further research is needed to understand the role of supplementary calcium in improving the salt tolerance of chile peppers.

Magnetic field influence on asphaltene aggregation monitored by diffusion NMR spectroscopy: Is aggregation reversible at high magnetic fields?

2019 ◽  
Vol 41 (2) ◽  
pp. 179-187
Author(s):  
Jelena Parlov Vuković ◽  
Predrag Novak ◽  
Tomislav Jednačak ◽  
Martina Kveštak ◽  
Davor Kovačević ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Nmr Spectroscopy ◽  
Magnetic Fields ◽  
High Magnetic Fields ◽  
Diffusion Nmr ◽  
Field Influence

scholarly journals A Study for Improving Compressive Strength of Cementitious Mortar Utilizing Magnetic Water

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1971 ◽  
Author(s):  
Omar M. M. Yousry ◽  
Metwally A. Abdallah ◽  
Mariam F. Ghazy ◽  
Mohamed H. Taman ◽  
Mosbeh R. Kaloop
Keyword(s):  
Magnetic Field ◽  
Compressive Strength ◽  
Tap Water ◽  
Ultrasonic Pulse Velocity ◽  
Ultrasonic Pulse ◽  
Pulse Velocity ◽  
Super Plasticizer ◽  
Number Of Cycles ◽  
Magnetic Water ◽  
Curing Age

This research investigates the means to improve the compressive strength of mortar mixtures through using novel mixtures. These mixtures include magnetic water (MW) and fly ash (FA). MW was obtained by circulating tap water (TW) through a magnetic field. The magnetization duration was represented by the number of cycles, the content of FA was replaced with cement, and the super plasticizer percentage (SP) and the curing age were used and evaluated experimentally for producing the mortar mixtures. Mortar flow, crushing compressive strength, and ultrasonic pulse velocity (UPV) tests were applied to evaluate the performances of mixing characteristics. The results demonstrate that the MW-treated mortar mixtures show higher compression strength results than those prepared by TW. The compressive strength was increased up to 60% with 150 cycles, a dose of 0.5% of SP and no FA content at the age of 56 days. The dose of SP can be cut down by a maximum of 40% to 50% in cementitious mortar. the workability was enhanced by a percentage of 70%.

Calculated Coronal Magnetic Fields and Their Comparison with the Coronal Structures as Observed during Five Solar Eclipses

1994 ◽  
Vol 144 ◽  
pp. 559-564
Author(s):  
P. Ambrož ◽  
J. Sýkora
Keyword(s):  
Magnetic Field ◽  
Solar Cycle ◽  
Magnetic Fields ◽  
Solar Corona ◽  
Coronal Magnetic Field ◽  
Coronal Magnetic Fields ◽  
Solar Eclipses ◽  
Coronal Structures

AbstractWe were successful in observing the solar corona during five solar eclipses (1973-1991). For the eclipse days the coronal magnetic field was calculated by extrapolation from the photosphere. Comparison of the observed and calculated coronal structures is carried out and some peculiarities of this comparison, related to the different phases of the solar cycle, are presented.

Radio Measurements of Coronal Magnetic Fields

1994 ◽  
Vol 144 ◽  
pp. 21-28 ◽  
Author(s):  
G. B. Gelfreikh
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Solar Corona ◽  
Active Regions ◽  
High Sensitivity ◽  
Coronal Magnetic Field ◽  
Transverse Magnetic ◽  
Radio Sources ◽  
Radio Waves ◽  
Solar Active Regions

AbstractA review of methods of measuring magnetic fields in the solar corona using spectral-polarization observations at microwaves with high spatial resolution is presented. The methods are based on the theory of thermal bremsstrahlung, thermal cyclotron emission, propagation of radio waves in quasi-transverse magnetic field and Faraday rotation of the plane of polarization. The most explicit program of measurements of magnetic fields in the atmosphere of solar active regions has been carried out using radio observations performed on the large reflector radio telescope of the Russian Academy of Sciences — RATAN-600. This proved possible due to good wavelength coverage, multichannel spectrographs observations and high sensitivity to polarization of the instrument. Besides direct measurements of the strength of the magnetic fields in some cases the peculiar parameters of radio sources, such as very steep spectra and high brightness temperatures provide some information on a very complicated local structure of the coronal magnetic field. Of special interest are the results found from combined RATAN-600 and large antennas of aperture synthesis (VLA and WSRT), the latter giving more detailed information on twodimensional structure of radio sources. The bulk of the data obtained allows us to investigate themagnetospheresof the solar active regions as the space in the solar corona where the structures and physical processes are controlled both by the photospheric/underphotospheric currents and surrounding “quiet” corona.

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