A system for reducing dust emissions resulting from tire abrasion, comprising a collecting unit (1), arranged at a distance from the tread (4) of a tire (5) and has at least one first electromagnet and/or permanent magnet (2). At least the material with which the tread (4) of the tire (5) is formed is magnetic or is ferromagnetically, ferrimagnetically or anti-ferromagnetically magnetisable, so that the tire abrasion particles (6) created as a result of abrasion of the tread (4) are magnetic or are ferromagnetically, ferrimagnetically or anti-ferromagnetically magnetisable. The at least one first electromagnet and/or permanent magnet (2) is designed to magnetise tire abrasion particles (6) and to accumulate the magnetized tire abrasion particles (6) detached from the material of the tread (4) in a collection point (3), arranged on a vehicle.

Embodiments are directed to a street sweeper. The street sweeper may include a hopper, a pickup head, and a magnet bar. The pickup head may have an intake portion that is fluidly coupled to the hopper. The magnet bar may be disposed rearward of the intake portion of the pickup head.

A magnetic separation device has a membrane having a plurality of pores, a magnetically soft material layer disposed on the membrane, and a passivation layer disposed on the magnetically soft material layer. The magnetic separation device may be part of a microfluidic device having a lateral flow channel and a vertical flow magnetic separation filter. The magnetic separation device may be used to separate magnetically tagged particles, such as cells.

A magnetic separation device has a membrane having a plurality of pores, a magnetically soft material layer disposed on the membrane, and a passivation layer disposed on the magnetically soft material layer. The magnetic separation device may be part of a microfluidic device having a lateral flow channel and a vertical flow magnetic separation filter. The magnetic separation device may be used to separate magnetically tagged particles, such as cells.

A battery pack according to the present disclosure includes a battery cell, a case for storing the battery cell, a smoke exhaust port provided in the case, a smoke exhaust port provided outside the smoke exhaust port to form an electric field or a magnetic field outside the smoke exhaust port, and a trap device that traps charged particles by trapping the charged particles.

A battery pack according to the present disclosure includes a battery cell, a case for storing the battery cell, a smoke exhaust port provided in the case, a smoke exhaust port provided outside the smoke exhaust port to form an electric field or a magnetic field outside the smoke exhaust port, and a trap device that traps charged particles by trapping the charged particles.

A method is described for controlling an oil spill by seeding micron-sized magnetizable particles in the oil. Once seeded, particles can form a unique and preferential bond with the oil resulting in creation of a colloidal mixture. This bond forms as a result of a combination of forces including the intermolecular Van der Waal forces. Once this bond is formed, the oil is rendered magnetic and can be controlled and moved in response to a magnetic field. This can include removing oil from water, reducing the diffusion rate of oil on water, magnetically lifting oil from water or nonporous surfaces, as well as separating the magnetic material from the oil.

A magnet cleaner cooperates with one or more permanent magnets positioned over a conveyer carrying pieces of metal in non-ferrous material so as to remove the metal from the non-ferrous material. The magnet cleaner includes a frame and a capture sheet mounted to the frame and positioned on the frame so as to be substantially flush with the permanent magnets when they are in their lowered positioned. The magnets are spaced by an attenuation distance from the capture sheet when they are in their raised position. The permanent magnets, which may be mounted in a housing, are positionably mounted on the frame so as to be selectively elevatable between their lowered and raised positions upon actuation of an actuator. The actuator is positioned so as to cooperate with the permanent magnets and the frame so as to raise or lower the magnets relative to the capture sheet.

A method of separating magnetic nanoparticles is described. The method comprises placing the magnetic nanoparticles in a periodic magnetic field. The periodic magnetic field varies between a first magnetic field strength and a second magnetic field strength that is higher than the first magnetic field strength. The nanoparticles may be superparamagnetic iron oxide nanoparticles.

A method of separating magnetic nanoparticles is described. The method comprises placing the magnetic nanoparticles in a periodic magnetic field. The periodic magnetic field varies between a first magnetic field strength and a second magnetic field strength that is higher than the first magnetic field strength. The nanoparticles may be superparamagnetic iron oxide nanoparticles.