Magnetic Sources of Gold and Freshwater Rivers: Using Ultra-Strong Magnets in the Production of Freshwater and Gold Fishing from Salty and Freshwater Currents

The research studies the least expensive ways to produce freshwater from the sea and extract gold, by taking advantage of the characteristics of seawater with a high density compared to the lower density of freshwater, and different estimates of the amount of gold present in seas and oceans (between 10 - 30 grams per 1 km3) and the total volume of gold in the sea (between 15 - 45 thousand tons), which will often be more than that due to the continuous sedimentation from the rivers, and the gold contains impurities that are attracted to the magnet, and therefore it is possible to catch it by means of “super strong magnets”;its strength reaches 1000 tons;it is placed at the bottom of a designated basin, so that the gold is attracted to the bottom, and the most saline types of water are deposited at the bottom, and freshwater floats to the top (by 1/4), and this is done by allocating a separate building to the magnet and large areas around it, and designing a water course dedicated to that, and lakes to collect Seawater and pass it on the magnet, which will cause the formation of lakes for freshwater, and other lakes for types of seawater minerals, and it is also possible to use “super-strong magnets” to attract gold from river water and seas, and from the tailings of gold mines, and it will eventually cause Providing huge quantities of freshwater to be used in agricultural and industrial expansion and the establishment of new societies, and gold is gradually turning into a commonly used metal just a “yellow stainless metal”.

A New Tetranuclear Cubane-like Ni(Ⅱ) Complex Based on Schiff-base Ligand:Synthesis,Crystal Structure and Magnetic Properties

A new Ni（Ⅱ） cubane-like complex, namely, [Ni（L）（CH3OH）]4·（CH3OH）2, has been obtained via self-assembly of nickel（Ⅱ） and Schiff base, where the ligand L is a raceme of（R）-2-[（2-hydroxy-1-phenyl-ethylimino）-methyl]-6-methoxy-phenol. X-ray diffraction analysis reveals that the complex shows a cubane-like [Ni4O4] cluster and similar coordination environment around the metallic centers. Magnetic measurements indicate there is ferromagnetic interaction within the Ni4 cluster.

A type of 2D magnetic equivalent circuit framework of permanent magnet for magnetic system in AEMR

Modeling of permanent magnet（PM） is very important in the process of electromagnetic system calculation of aerospace electromagnetic relay（AEMR）. In traditional analytical calculation, PM is often equivalent to a lumped parameter model of one magnetic resistance and one magnetic potential, but great error is often caused for the inner differences of PM; based on the conception of flux tube, a type of 2D magnetic equivalent circuit framework of permanent magnet model（2D MECF） is established; the element is defined, the relationship between elements is deduced, and solution procedure as well as verification condition of this model is given; by a case study of the electromagnetic system of a certain type of AEMR, the electromagnetic system calculation model is established based on 2D MECF and the attractive force at different rotation angles is calculated; the proposed method is compared with the traditional lumped parameter model and finite element method（FEM）; for some types of electromagnetic systems with symmetrical structure, 2D MECF proves to be of acceptable accuracy and high calculation speed which fit the requirement of robust design for AEMR.