63 results about "Magnetic vortex" patented technology

Provided are a method of generating strong spin waves, a method of simultaneously generating spin waves and electromagnetic waves, a logic operation device using spin waves, a variety of spin wave devices employing the same, and a method of controlling phases of spin waves. In the method of generating spin waves, strong spin waves are generated by supplying various shapes of energies to a magnetic material in which a magnetic vortex and magnetic antivortex spin structures exist separately or together. When energies are applied to a patterned magnetic material so that magnetic vortex or magnetic antivortex can be generated, a strong torque is generated in a vortex core so that strong spin waves can be generated from the vortex core. The spin waves generated in this way have large amplitudes, short wavelengths, and high frequencies. In the logic operation device using spin waves and the spin wave devices employing the same, wave factors of frequency, wavelength, amplitude, and phase of a spin wave generated by the method of generating spin waves are controlled and wave characteristics such as reflection, refraction, transmission, tunneling, superposition, interference, and diffraction are used. According to the present invention, logic operation spin wave devices capable of performing ultra-high speed information processing and various shapes of optical devices using waves in optics can be reconstructed using spin waves.

The invention discloses a magnetic vortex array imaging detection method and a magnetic vortex array imaging detection device for detecting the defect of a steel plate, wherein the method comprises the following steps: acquiring a characteristic parameter and determining an optimal excitation frequency; exciting a sinusoidal alternating current magnetic field and inducing an alternating vortex current; acquiring an induction alternating magnetic signal near a detected area of the detected steel plate; processing the induction alternating magnetic signal and conducting the first differential transformation operation to obtain a transformed differential signal; judging whether the differential signal is less than the preset threshold, if so, judging that no defect exists, otherwise, judging that the defect exists, and extracting an area signal; inputting the area signal into a constructed neural network model to implement defect reverse inversion to obtain a defect profile parameter; and drawing a defect profile according to the defect profile parameter to realize imaging. The method uses a concentric ring type magnetic vortex array detection array to detect the defect, so that the defect of the steel plate is detected at the high accuracy, the detection accuracy is improved, and the defect imaging effect is improved.

Provided are an ultrafast magnetic recording element and a nonvolatile magnetic random access memory using the same. The magnetic recording element includes a read electrode, a magnetic pinned layer formed on the read electrode, and an insulating layer or a conductive layer formed on the magnetic pinned layer. The magnetic recording element includes a magnetic free layer formed on the insulating layer or the conductive layer, in which a magnetic vortex is formed, and a plurality of drive electrodes applying a current or magnetic field to the magnetic free layer. Alternatively, the magnetic recording element includes a magnetic free layer in which a magnetic vortex is formed, a plurality of drive electrodes applying a current or a magnetic field to the magnetic free layer, and a read line disposed around the magnetic free layer. Herein, a current generated by a voltage induced by the movement of a magnetic vortex core flows through the read line. According to the magnetic recording elements, the magnetic recording element with a simple structure can be realized using a magnetic layer with a magnetic vortex formed, and the magnetic recording element can be accurately driven with low power using a plurality of drive electrodes.

The invention relates to a device used to reduce the magnetic resonance image magnet cyclone. Wherein, it comprises a polar plate head (401) for generating uniform magnetic field; an insulated layer (402) for separating cyclone; a guide layer (403) for guiding the gradient magnetic field (403), a main gradient winding (407) for generating one main gradient magnetic field; an insulated winding (404) and a uniform ring (406); the winding (404) is between the plate head (401) and the guide layer (403), to be embedded into the insulated layer (402); the winding (404) and the winding (407) are electrically connected; the plate head (401) is made from electric magnetic conductive material, whose one surface opposite to the image space is contacted with one layer of insulated layer (402); one surface of layer (402) facing the image space is contacted with one layer of magnetic-conductive electric-insulated guide layer (403); the winding (404) can guide most of longitudinal gradient magnetic field into the guide layer (403), to reduce its cyclone the polar plate to improve the image quality.

The invention provides a strongly magnetic vortex sorter, belongs to the technical field of waste recycling mechanical equipment, and solves the problem that in sorting process of the conventional strongly magnetic vortex sorter, a material sometimes scatters onto the ground. The strongly magnetic vortex sorter comprises a pedestal, wherein a feed port and a discharge port are formed on the pedestal; a conveyor belt is connected between a rotating shaft and a rotating roll; a sorting chamber is formed on the pedestal at the discharge port end; a discharging plate for partitioning the sorting chamber into a sorting port 1 and a sorting port 2 is arranged inside the sorting chamber in an inclined way; the inclining direction of the discharging plate is in the tangential direction of the discharge port end of the conveyor belt; a regulating device capable of synchronously regulating the discharging amounts of the sorting port 1 and the sorting port 2 is arranged on the discharging plate near the discharge port end in a sliding way. The strongly magnetic vortex sorter reduces the size of the sorting port 1 as well as increases the size of the sorting port 2; and when a rectangular regulating plate moves downwards in an inclining way by fitting the discharging plate, the size of the sorting port 1 is increased and the size of the sorting port 2 is reduced.

Provided are a method for read-out of information in a magnetic recording element and a method for read-out of information in a magnetic random access memory. In the method, a magnetic recording element including a magnetic free layer where a magnetic vortex is formed is prepared, and “0” or “1” is assigned according to a core orientation of a magnetic vortex formed in the magnetic free layer. The magnetic vortex core formed in the magnetic free layer rotates on the magnetic free layer by applying a current or magnetic field, of which a direction varies with time, to the magnetic free layer with the magnetic vortex formed. “0” or “1” assigned according to the core orientation of the magnetic vortex formed in the magnetic free layer is read out by measuring a characteristic caused by a difference in a rotation radius of the magnetic vortex core. Herein, the rotation radius of the magnetic vortex core, which is formed in the magnetic free layer and rotates by the applied current or magnetic field, varies with the core orientation of the magnetic vortex formed in the magnetic free layer.

Provided are a method for recording information in a magnetic recording element and a method for recording information in a magnetic random access memory. The method for recording information in a magnetic recording element includes preparing the magnetic recording element having a magnetic free layer in which a magnetic vortex is formed. A current or a magnetic field whose direction varies with time is applied to the magnetic free layer to switch a core orientation of a magnetic vortex formed in the magnetic free layer to an upward direction or downward direction from a top surface of the magnetic free layer “0” or “1” is assigned according to the direction of the core orientation of the magnetic vortex formed in the magnetic free layer. According to the method for recording information in a magnetic recording element of the present invention, the core orientation of the magnetic vortex formed in the magnetic free layer of the magnetic recording element can be selectively switched by applying a current or magnetic field whose direction varies with time to the magnetic recording element, so that information can be easily and correctly recorded, lower power is consumed in recording information, and the switching for recording information can be performed very rapidly.

The invention discloses a disk type translation permanent magnetic stator type permanent magnetic vortex speed regulating device. The device comprises an input shaft and an output shaft in a concentric arrangement. The input shaft is orderly and concentrically provided with a permanent magnet stator and a magnetic rotor along an axial direction. The permanent magnet stator can translate along the axial direction of the input shaft. The output shaft is concentrically provided with a conductor rotor. The permanent magnet stator comprises an outer ring iron core, a radially magnetized permanent magnet ring and an inner ring iron core nested in order. The magnetic rotor comprises inner and outer ring permanent magnet poles which are in a staggered arrangement along a circumferential direction. Both the inner and outer ring permanent magnet poles are in an interval arrangement with corresponding iron poles, and the polarities of the inner and outer ring permanent magnet poles are the opposite. Compared with the prior art, the device of the invention has the advantages that through axially translating the permanent magnet stator, a speed adjustment function is realized, thus a speed regulating mechanism is simplified, the maintenance cost is reduced, the service life is prolonged, the structure is simple, the operation is convenient, the device is suitable for the occasions of different requirements, and the device has the functions of a permanent magnet coupling coupler, a soft starter and a permanent magnet speed regulator.

Provided are a method of generating strong spin waves, a method of simultaneously generating spin waves and electromagnetic waves, a logic operation device using spin waves, a variety of spin wave devices employing the same, and a method of controlling phases of spin waves. In the method of generating spin waves, strong spin waves are generated by supplying various shapes of energies to a magnetic material in which a magnetic vortex and magnetic antivortex spin structures exist separately or together. In the logic operation device, wave factors of frequency, wavelength, amplitude, and phase of a spin wave generated by the method of generating spin waves are controlled and wave characteristics such as reflection, refraction, transmission, tunneling, superposition, interference, and diffraction are used.

The invention discloses a magnetic sealing device for large-torque magnetic stirrers, comprising a drive motor (1). The output shaft of the drive motor (1) is directly and fixedly connected with a magnetic coupling outer magnetic cylinder (2). A magnetic coupling inner magnetic cylinder (3) corresponding to the magnetic coupling outer magnetic cylinder (2) is arranged at the inner side of the magnetic coupling outer magnetic cylinder (2). The magnetic coupling inner magnetic cylinder (3) is directly and fixedly connected with the top end of an input sun wheel (41) of a planetary reducer (4). The input sun wheel (41) and a planetary wheel (42) are meshed with each other, the other side of the planetary wheel (42) and a gear ring (43) are meshed with each other, and the lower end of the gear ring (43) is fixedly connected with the upper end of an output spindle (5). After the torque of the motor is transferred to the magnetic coupling inner magnetic cylinder under the action of a magnetic field, the speed is reduced through the built-in planetary reducer, and thus large-torque transmission is realized. The consumption of magnetic blocks is low, so that the cost is reduced, and the magnetic vortex heat is small. The magnetic sealing device is suitable for promotion and use.

The invention provides a heating pump and a heating system, and relates to the technical field of heating equipment. The heating pump comprises a heating pump body and a rotary wheel. A heating cavity is formed in the heating pump body. The rotary wheel is arranged in the heating cavity. A plurality of permanent magnets are evenly arranged on the rotary wheel, and the N pole of each permanent magnet is opposite to the S pole of the adjacent permanent magnet. According to the heating pump and the heating system provided by the invention, magnetic vortexes are generated on the heating pump body through rotation of the rotary wheel and make the heating pump body to generate heat, a heat transfer medium exchanges heat with the heating pump body, thus, the heat of the heating pump body is conveyed away through the heat transfer medium, and the heating pump can be used by directly using the heat transfer medium or exchanging heat with the heat transfer heat. When water serves as the heat transfer medium, the heating pump can directly heat the water, when the heating pump is connected in a water network, heating can be achieved, and fire coal is replaced. In this way, environment protection is facilitated.

The invention discloses a vortex state magnetic storage unit of a nano unit structure. The vortex state magnetic storage unit is a grooved disc-shaped structure which is formed by thickening the edge of an ordinary disc-shaped magnetic vortex structure unit, the minimum value of the outer diameter D of a groove is 80nm, the depth of the groove is 4nm to 68nm, the inner diameter d of the groove is greater than 8nm, and the overall thickness of the unit is 16nm to 136nm. The vortex state magnetic storage unit has advantages that by modifying the structure of the traditional disc storage unit, the stable vortex state can be maintained under a smaller size; moreover, the rapid polarization switching can be completed under the in-situ control, and the high-density magnetic storage can be realized.

A space based magnetic vortex accelerator and methods of use thereof having one or more sections of magnetic material configured as a conduit with a flightpath therethrough for the spacecraft, a magnetic coil field generator electrically connected to said one or more sections of magnetic material configured to generate a space based magnetic field via said one or more sections of magnetic material, a power plant electrically connected to said magnetic coil field generator, said power plant configured to power said magnetic coil field generator, one or more magnetic field receivers affixed to the spacecraft, said one or more magnetic field receivers configured to magnetically engage said space based magnetic field.

The invention discloses a ground directly-through downhole drilling device integrating water pumping and water draining tests. The drilling device comprises a water pumping test device, a water draining test device, a ground directly-through downhole drilling hole and a ground integrated receiving device. Reverse-wire water stopping sleeves a, taper water stopping devices, water spray filtering pipes, sand setting solid pipes and reverse-wire water stopping sleeves b are sequentially arranged from the ground to the downhole in the drilling hole. The water spray filtering pipes are located in an aquifer; sand setting sleeves are arranged in the sand setting solid pipes; and a water-level water temperature sensor is mounted in the drilling hole. The water draining test device comprises five flange plates and magnetic vortex flow sensors which are arranged in an underground roadway in a step-by-step variable diameter mode, and a gate valve is mounted between the bottom of the drilling hole and the water draining test device. The needs of the water pumping tests or water draining tests are fully considered, one hole meets dual-use, the disadvantage of general inconvenient construction in downhole is overcome, and ground real-time automatic monitoring of quantized data of the water level and water temperature and the like of the target aquifer is realized.

The invention belongs to the field of flow measurement systems, and in particular relates to an intelligent magnetic vortex flow detection control system. The system comprises a meter-reading terminal (5) provided with a flow measurement gauge, a GSM / GPRS network and a detection control center, wherein a gauge body (1) of the flow measurement gauge is fixedly provided with a vortex generating body (2) in which a magnetic vortex flow probe (3) is fixedly arranged; an electromagnetic flow probe (4) is also arranged in the measurement gauge body (1); output ports of the magnetic vortex flow probe (3) and the electromagnetic flow probe (4) are connected with interfaces of the flow measurement gauge in the meter-reading terminal (5); the meter-reading terminal comprises the flow measurement gauge and a meter-reading terminal GSM / GPRS network modem; ports of the flow measurement gauge are connected with the ports of the meter-reading terminal GSM / GPRS network modem; and the ports of the meter-reading terminal GSM / GPRS network modem are connected to a detection-control-end GSM / GPRS network modem via the GSM / GPRS network.

The invention relates to a novel cathode lining structure for an aluminum electrolysis cell, which is characterized in that: a cathode block support boss is arranged on an impermeable layer; the bottoms of cathode blocks are arranged on the cathode block support boss; gaps through which aluminum liquid can pass up and down are reserved among lateral parts of the adjacent cathode blocks; and aluminum liquid circulating grooves are formed among the upper part of the impermeable layer and the bottoms of the cathode blocks. The peripheries of the cathode blocks can be heated by the aluminum liquid in an electrolytic cell bath during aluminum electrolysis production, so that the electrical resistivity of the cathode blocks is reduced, the contact surface areas for conducting current of the cathode blocks and the aluminum liquid are enlarged, and the density of the current conducted by the aluminum liquid is improved; magnetic vortexes of the aluminum liquid, generated on the bottom of the electrolytic cell bath, play a role in clearing and washing away sediments, and simultaneously the cathode blocks can also play a role in blocking the magnetic vortexes of the aluminum liquid above the bottoms of the cathode blocks, so that horizontal fluctuation between the aluminum liquid and an electrolyte interface is reduced, the effects of reducing electrolytic polar distance and setting low voltage are achieved, and the aim of reducing the power consumption in the production of electrolytic aluminum is fulfilled.

The invention discloses a magnetic vortex propulsion engine system for a magnetieally levitated vehicle. The magnetic vortex propulsion engine system is characterized by comprising a frame body for being mounted on the magnetieally levitated vehicle, the frame body is provided with a rotatable drive device, and a rotating shaft of the drive device is horizontally arranged; the rotating shaft of the drive device is provided with a permanent magnet mechanism, and the permanent magnet mechanism comprises a permanent magnet bracket and a plurality of permanent magnets which are arranged on the outer side of the permanent magnet bracket in the peripheral direction at intervals; the permanent mechanism can make the permanent magnets to move in the peripheral direction of the permanent magnet bracket under the action of the drive device; the magnetic vortex propulsion engine system further comprises a non magnetic conducting plate which is horizontally and fixedly mounted below the permanent magnet mechanism, and a gap is formed between the non magnetic conducting plate and the corresponding permanent magnet. The magnetic vortex propulsion engine system has the advantages of being low in cost, high in drive efficiency, small in magnetic pollution, capable of being applied to tracked and trackless suspension type transportation vehicles and the like.

The invention relates to the field of computational physics and materials science, and applies quantum theory to simulation of magnetic skyrmion lattices and magnetic vortex lattices. The method comprises the steps that: 1, respective rotations in the Hamiltonian quantity of the magnetic system are quantum mechanics operators; 2, all physical quantities are calculated strictly according to a quantum theory; 3, a self-consistent algorithm is adopted; 4, simulation is performed on gradual reduction to low temperature from high temperature so as to ensure correct convergence of a program; 5, periodic boundary conditions are adopted; 6, a vertical external magnetic field is considered, so that spiral stripes generated by the exchange effect of the DMI and the Heisenberg are changed into skyrmion or vortex lattices; 7, when Heisenberg exchange and DMI effects coexist, the Compass type anisotropy effect is considered, and skyrmion lattices with the opposite neighbor vortex directions are simulated. The defects of micro-magnetism and a Monte-Carlo two-classic method are overcome, so that simulation is very flexible and convenient, and particularly in a quantum scale, a periodic magnetic structure which cannot be calculated by the two-classic method is simulated.

A recirculation fan includes a casing, a covering member, and a fan assembly. The casing has a base. The covering member is coupled with the casing to define an accommodation space. The fan assembly is disposed within the accommodation space, and includes a first impeller, a second impeller, a motor, and a plurality of magnetic elements. The second impeller is located beside the first impeller. The motor is fixed on the base of the casing and connected with the first impeller for driving rotation of the first impeller. The magnetic elements are arranged between the first impeller and the second impeller. A wind force generated by the first impeller and a magnetic torque resulted from a magnetic vortex of the magnetic elements cause contactless rotation of the second impeller.

A vortex street flowmeter of electromagnetic type is featured as setting triangular column in flow tube, setting probe at back of triangular column, setting permanent magnet at flow tube external certain position corresponding to said probe for structuring signal transducer by probe and permanent magnet, applying needle form conductor as probe being suspended vertically at center of flow tube, setting probe tail portion at outside of flow tube and connecting it to wiring terminal used to lead out detection signal.

The invention provides an inner cooling circulation system structure for a magnetic pump. The inner cooling circulation system structure is characterized by being composed of a liquid inlet hole (A), a liquid inlet hole (B), a liquid inlet hole (C), a liquid outlet hole (D) and a pressure balance back flow hole (E), wherein the liquid inlet hole (A) is formed in a pump cover (2) and leads to a shaft cavity (4) between a left sliding bearing (3a) and a right sliding bearing (3b); the liquid inlet hole (B) is formed in a main shaft (5) and leads to the back end of the main shaft (5); the liquid inlet hole (C) is distributed and radially formed in the back end surface of an inner magnetic rotor (6) and communicates with the liquid inlet hole (B) in the main shaft; the liquid outlet hole (D) is formed in the pump cover (2) and leads to an isolation sleeve inner cavity (70b) on the front side of the inner magnetic rotor (6); the pressure balance back flow hole (E) is formed in an impeller (1); and a medium conducts centrifugal pump effect action when passing the liquid inlet hole (C) in the inner magnetic rotor (6), so that the flowing capacity of the cooling medium is promoted. The inner cooling circulation system structure for the magnetic pump is suitable for conveying easily-cavitated media, prevents the situation that heat of a magnetic vortex returns to an inlet of the impeller and produces steam explosion and cavitation phenomena, improves the anti-cavitation performance of the magnetic pump, and is more suitable for complicated working conditions.

The invention discloses a construction waste classification treatment system and process. The classified treatment system is characterized by comprising a closed chain plate distributing machine (1),strong feeding plate hammering equipment (3), a first roller screen (4), magnetic vortex sorting equipment (5) and circulating winnowing equipment (6) which are sequentially connected through conveying equipment (2); the circulating winnowing equipment (6) is connected with the packaging equipment (7) and a second roller screen (8) through the conveying equipment (2); the system also comprises dust removing equipment (9) which is connected with the closed chain plate distributing machine (1), the strong feeding plate hammering equipment (3), the first roller screen (4) and the circulating winnowing equipment (6) to remove dust. According to the construction waste treatment system, the processes of crushing, screening, magnetic separation, winnowing, packaging and the like can be effectively carried out on construction waste, recycling of the construction waste is achieved, and particularly dust and the like generated in the production process can be effectively collected through the dust collection system. An environment-friendly, effective and economical construction waste recycling and classifying treatment system is realized.

A three dimensional photovoltaic module that allows for the absorption of solar energy from various angles in a three hundred sixty degree arrangement has a base panel unit and a solar structure. The solar structure has a plurality of solar cells, each having a first photovoltaic cell and a second photovoltaic cell, wherein each of the plurality of solar cells absorbs light from two opposing sides. A concentrated photovoltaic lens directs light and traps light in an interior volume, allowing for internal absorption of light in addition to the external absorption of light. The base panel unit has a rotational base to which the solar structure is connected, and a magnetic base about which the rotational base is magnetically levitated. A plurality of magnets positioned around the rotational base generates a magnetic vortex that in combination with the magnetic base allows the rotational base and the solar structure to rotate.

A recirculation fan includes a casing, a covering member, a wind-guiding device, a passive impeller, and an active impeller. The covering member is coupled with the casing to define an accommodation space. The wind-guiding device is disposed on the covering member, and includes a wind-guiding cover and a magnetoresistive structure. The magnetoresistive structure is disposed on the covering member and the wind-guiding cover. The passive impeller is disposed within the accommodation space. The active impeller is disposed within the accommodation space and located beside the passive impeller for generating a wind to drive rotation of the passive impeller and the wind-guiding cover. In response to a magnetic torque resulted from a magnetic vortex of the magnetoresistive structure, a rotating speed of the wind-guiding cover is slowed down.

Provided are a method for read-out of information in a magnetic recording element and a method for read-out of information in a magnetic random access memory. In the method, a magnetic recording element including a magnetic free layer where a magnetic vortex is formed is prepared, and “0” or “1” is assigned according to a core orientation of a magnetic vortex formed in the magnetic free layer. The magnetic vortex core formed in the magnetic free layer rotates on the magnetic free layer by applying a current or magnetic field, of which a direction varies with time, to the magnetic free layer with the magnetic vortex formed. “0” or “1” assigned according to the core orientation of the magnetic vortex formed in the magnetic free layer is read out by measuring a characteristic caused by a difference in a rotation radius of the magnetic vortex core. Herein, the rotation radius of the magnetic vortex core, which is formed in the magnetic free layer and rotates by the applied current or magnetic field, varies with the core orientation of the magnetic vortex formed in the magnetic free layer.

The invention provides a magnetically-driven submerged liquid chlorine pump. The pump comprises an electric motor, an outer magnetic cylinder driven by the electric motor, an inner magnetic cylinder in magnetic coupling with the outer magnetic cylinder, a liquid chlorine pump output shaft connected with the inner magnetic cylinder and a bearing support for erecting the liquid chlorine pump output shaft. An impeller is connected with the end, opposite to the inner magnetic cylinder, of the liquid chlorine pump output shaft, and a plurality of layers of distance sleeves are arranged between the inner magnetic cylinder and the outer magnetic cylinder and are fixed to the bearing support through a connecting plate; a gap exists between the adjacent distance sleeves, and closed vacuum space is formed between the adjacent distance sleeves; the connecting plate is fixedly connected with a liquid leakage alarming apparatus communicated with the vacuum space; and the distance sleeves are non-metal distance sleeves. According to the technical scheme, heat generated by the magnetic vortex is avoided; liquid lubricating and cooling are not needed; the phenomenon that media pollute the inner magnetic cylinder and the external environment is completely eradicated; and the service life of the inner magnetic cylinder, the outer magnetic cylinder and the distance sleeves is prolonged.

The invention relates to a lower-in permanent magnetic vortex heater, which is formed by an internal-magnetic tubular permanent magnet (2), a magnetic non-conductive pumping rod (1), a sensitive heating copper muffle (4) that fixed with pumping rod (1) via magnetic non-conductive support (3), an overflow inner channel (7) and an overflow outer channel (8); the magnetic circuit is formed the internal-magnetic tubular permanent magnet (2) and the air gap inside the magnetic hole; the sensitive heating copper muffle (4) moves straight relative to the magnetic field whose axial direction is sine wave that generated by and internal-magnetic tubular permanent magnet (2), to generate vortex inside the tube wall; since the sensitive heating copper muffle (4) is between the overflow inner channel (7) and the overflow outer channel (8); when the overflow channel is filled with base oil, the sensitive heating copper muffle (4) is completely surrounded by base oil, and the sensitive vortex heat is completely transmitted to around base oil, to effectively keep temperature.

A water energy generator that generates electricity using a magnetic vortex wormhole generator and a water injector / vacuum chamber to produce low density hyperspace energy that causes the hydrogen atoms of water molecules to decay into electron pairs.

The disclosed subject matter relates to a non-volatile memory bit cell (500 or 600) for solid-state data storage, including, e.g., an elongated magnetic element (102) or “dot”. For appropriate geometry and dimensions of the dot, a two-fold, energetically-degenerate micromagnetic configuration (100 or 200) can be stabilized. Such a stable configuration can consist of two magnetic vortices (1081, 1082) and a flower state region (110). Due to energy minimization, the flower state region can be off-center (relative to a minor axis (106)) and along the major axis (104) of the dot. An electrical current (302) flowing perpendicular to the plane at, or in proximity to, the dot center can, according to current polarity, switch the configuration or state of the dot between the two specular magnetically stable configurations (e.g., a write operation). Reading of the cell state can be accomplished by using the magnetoresistive effect.

The invention discloses a resource utilization system for household garbage. The resource utilization system is characterized by comprising a closed chain plate distributing machine (1), strong feeding plate hammering equipment (3) and a first roller screen (4) which are sequentially connected through conveying devices (2), the first roller screen (4) returns to the strong feeding plate hammeringequipment (3) through the three conveying devices (2) and is conveyed to the first magnetic vortex sorting device (5) and a negative pressure vibration sorting device (6); the negative pressure vibration sorting device (6) is respectively connected with a light material treatment line and a heavy material treatment line; the system is particularly suitable for sorting and resource utilization of the municipal solid waste, the municipal landfill solid waste can be subjected to reduction, resource utilization and innocent treatment through the household solid waste-oriented resource utilizationproduction line, and the pressure o garbage enclosure is reduced.