scholarly journals The bioenergetic resonance model at pre-sowing seed crops treatment

2021 ◽  
pp. 97-106
Author(s):  
A. Kushnirenko ◽  
◽  
V. Pryadko ◽  
O. Sinyavsky ◽  
◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Magnetic Resonance ◽  
Constant Magnetic Field ◽  
Unit Volume ◽  
Magnetization Vector ◽  
Alternating Magnetic Field ◽  
Agricultural Crops ◽  
Earth’S Magnetic Field ◽  
Earth's Magnetic Field

The research is devoted to the study of the behavior of the generalizing magnetization vector in the seeds of agricultural crops under the action of longitudinal constant and transverse alternating magnetic fields by the method of nuclear magnetic resonance. Based on the theoretical studies, the value of the average magnetic susceptibility per unit volume of seed χ and the value of the magnetization vector were determined. For the system of microparticles of cells of plant origin, the average magnetic susceptibility per unit volume of seed is χ = 2.1 · 10-5, and the magnetization vector M=13.125 mA/m at a longitudinal constant magnetic field strength H = 625 A/m. When a weak transverse alternating magnetic field is superimposed on the frequency, the oscillation frequencies of the magnetization vectors M coincide with the field frequency, which is a condition for the occurrence of magnetic resonance. The longitudinal magnetization vector during the transition from the ground state to the excited state (resonant) describes a trajectory in the form of a spiral on the surface of the sphere. A mathematical model for a biological system taking into account the Earth's magnetic field is built. It is established that for the technology of pre-sowing treatment of seeds of agricultural crops, the inductor, which creates a constant magnetic field, must be located so that the vector of the constant magnetic field of the inductor coincides with the vector of the Earth's magnetic field. Keywords: bioenergetic resonance, pre-sowing treatment of crop seeds, direct magnetic field, alternating magnetic field, longitudinal and transverse relaxation

Magnetic resonance imaging without field cycling at less than earth's magnetic field

2015 ◽  
Vol 106 (10) ◽  
pp. 103702 ◽  
Author(s):  
Seong-Joo Lee ◽  
Jeong Hyun Shim ◽  
Kiwoong Kim ◽  
Kwon Kyu Yu ◽  
Seong-min Hwang
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Earth’S Magnetic Field ◽  
Earth's Magnetic Field ◽  
Field Cycling

LIMITING VALUES OF GRAVITATIONAL AND MAGNETIC ANOMALIES DUE TO A SUBTERRANEAN STRUCTURE BOUNDED BY A SINGLE DIFFERENTIAL SURFACE

Geophysics ◽  
1941 ◽  
Vol 6 (1) ◽  
pp. 1-12 ◽  
Author(s):  
J. W. Fisher
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Magnetic Anomalies ◽  
Effective Thickness ◽  
Earth’S Magnetic Field ◽  
Magnetic Effects ◽  
Earth's Magnetic Field ◽  
Survey Results ◽  
Limiting Values

Calculations are made of gravitational and magnetic anomalies supposed due to local variations in the form of a single differential surface separating an overlying rock from an underlying one, the effective thickness of the latter being infinite. Both layers are homogeneous in density or magnetic susceptibility and only those magnetic effects are considered which are due to induction in the earth’s magnetic field. The maximum possible values of these anomalies and of their first and second horizontal derivatives are calculated under these simplified conditions, and it is pointed out that the numerical readings of these quantities, provided by survey results, may lead to useful estimates of the extreme depth and proportions of the structure responsible.

Interpretation of magnetic resonance measurements in the varying earth’s magnetic field

Geophysics ◽  
2016 ◽  
Vol 81 (4) ◽  
pp. WB23-WB31 ◽  
Author(s):  
Anatoly Legchenko ◽  
Jean-Michel Vouillamoz ◽  
Fabrice Messan Amene Lawson ◽  
Christian Alle ◽  
Marc Descloitres ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Resonance ◽  
Synthetic Data ◽  
Test Site ◽  
Complex Problem ◽  
Nonlinear Inversion ◽  
Earth’S Magnetic Field ◽  
Measuring Device ◽  
Magnetic Resonance Sounding ◽  
Earth's Magnetic Field

At the scale of a magnetic resonance sounding (MRS) field setup, the earth’s magnetic field in the subsurface may vary laterally with depth and over time. These variations can be caused by different natural factors and generally cannot be compensated for by accurate tuning of the measuring device. The varying geomagnetic field (GMF) causes nonresonance conditions of excitation that affect the amplitude and phase of the MRS signal. Usually, variations of the GMF do not exceed a few hertz and their effect on the amplitude is relatively small, permitting us to assume near-resonance conditions for inversion. However, in some cases, the results may be erroneous if a varying GMF is not taken into account. Motivated by possible improvements in MRS inversion, we have developed a procedure for measuring and interpreting MRS data that considers a varying GMF. Our results showed that it is relatively easy to take a time-varying GMF into account. As a demonstration, we have developed the inversion of MRS data measured in Benin (West Africa). A depth-varying GMF is a more complex problem, and to consider this, we have developed an algorithm of nonlinear inversion. We have tested this approach on synthetic data, which resulted in an improved inversion. Field validation of this procedure awaits the discovery of a suitable test site with known variations of the earth’s magnetic field in the subsurface.

Magnetic Resonance Imaging System Based on Earth's Magnetic Field

2004 ◽  
Vol 32 (6) ◽  
pp. 655-667 ◽  
Author(s):  
Aleš Mohorič ◽  
Gorazd Planinšič ◽  
Miha Kos ◽  
Andrej Duh ◽  
Janez Stepišnik
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
Imaging System ◽  
Magnetic Resonance Imaging System ◽  
Resonance Imaging ◽  
Earth’S Magnetic Field ◽  
Earth's Magnetic Field

A Theoretical Study of Underground Magnetic Resonance Sounding for the Advanced Detection of Water Influxes in Tunnels

2020 ◽  
Vol 25 (1) ◽  
pp. 37-46
Author(s):  
Yue Zhao ◽  
Jun Lin ◽  
Chuandong Jiang ◽  
Xiaofeng Yi
Keyword(s):  
Magnetic Field ◽  
Magnetic Resonance ◽  
Water Inrush ◽  
Earth’S Magnetic Field ◽  
Detection Distance ◽  
Magnetic Resonance Sounding ◽  
Angle Rotation ◽  
Earth's Magnetic Field ◽  
Resolution Analysis ◽  
Normal Angle

Based on surface magnetic resonance sounding (MRS), a relationship is proposed to express the MRS response signal with a vertical coil for the MRS method for a whole underground space model. Firstly, the declination and inclination characteristics of the Earth's magnetic field and the coil normal angle are studied by deriving the angle rotation matrix. Surprisingly, the results indicate that the MRS signal can be effectively improved by changing the normal direction of the coil perpendicular to that of the Earth's magnetic field. The advanced detection distance of the underground MRS method is closely related to the exciting pulse moment and the receiving sensitivity. Hence, a larger pulse moment and high receiving sensitivity correspond to a longer advanced detection distance. However, the limited transmitting moment will reduce the advanced detection distance. In the research coincident loop with the coil 2 m by 2 m square is employed. In order to overcome the noises with 1 nV and 100 nV level, the turns of loop should be 100 turns and 400 turns, respectively. Finally, the numerical simulation results verify the feasibility of underground whole MRS theory and resolution analysis method for the advanced detection of water-inrush disasters in mines and tunnels.

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