A microfluidic system includes a fluidic platform having a surface, a first liquid disposed onto the fluidic platform, and a droplet disposed onto the first liquid. The first liquid has a first temperature. The droplet has a second temperature higher than the first temperature so that the droplet is levitated above the first liquid by a cushion of vapor of the first liquid. In an embodiment, a device is configured to provide a magnetic field that has variable strength across the surface. A location of a magnetic droplet relative to the surface area is affected by the magnetic field. A method includes providing a fluidic platform, providing a magnetic field, introducing a first liquid onto the fluidic platform, introducing a first magnetic droplet onto the first liquid, and locally varying the magnetic field.

There is provided a power transmission device to switch a coupled state and an uncoupled state between a first member and a second member which are arranged in a transmission path of a driving force to thereby control transmission of the driving force. The device includes a movable body having ferromagnetic property, a first magnetic path and a second magnetic path, and a permanent magnet. The device also includes a driving portion to excite the electromagnet in the forward direction and then increases an attraction force on a side on which a magnetic flux is increased or decreased.

An apparatus and method for extracting nucleic acids such as DNA molecules from biological samples uses solid-state magnetic manipulation. A fluid sample and magnetic beads are placed in a vessel. The vessel is placed in a housing with an array of electromagnets mounted therein. The electromagnets are energized sequentially or in groups to move the magnetic beads through the fluid sample in a variety of patterns. The apparatus disclosed herein may be used as a measurement device to measure bead number density and modify magnetic patterns in order to deliver consistent dosages in bead number.

Embodiments herein are directed to a system and a method of selectively manipulating magnetically-barcoded materials from background magnetic materials. Magnetic barcodes include layers of magnetic anisotropy. These are then manipulated by a magnetic system that can drive spatio-temporal magnetic fields that can “match” a barcode to drive a specific interaction, thereby providing a “lock-key” interaction. This technique is able to selectively manipulate magnetically-barcoded materials, and can have applications across a variety of magnetic systems such as cell separation, drug delivery, valves, and motors.

The present application provides a machine cleaning device. The machine cleaning device includes: a guide rail arranged next to a carrying platform of the machine main body, a support slidably mounted on the guide rail, a cleaning component mounted on the support, a driving device connected to the support in a transmission way, and a controller connected to the driving device; and when the cleaning component cleans the top surface of the machine main body, the controller controls the driving device to drive the support to move along the guide rail, so as to drive the cleaning component to clean the top surface of the machine main body in a direction away from the carrying platform. So that unexpected particles are reduced to fall on the carrying platform and contaminate the carrying platform during the cleaning process.

A system comprising a solenoid electromagnet for generating a magnetic field and a driver circuit coupled to the solenoid electromagnet for modulating the magnetic field generated by the solenoid electromagnet. The magnetic field generated by the solenoid electromagnet of the present invention exhibits improved control over the direction and projection of the generated magnetic field. The generated magnetic field has the ability to detach permanent magnets from metal plates, cause motion of permanent magnets and soft magnetic materials as well as create separation between two magnetically bound permanent magnets.

The present invention relates generally to the field of floor mats. More specifically, the present invention relates to a magnetic mat device that prevents a user from wasting excessive amounts of time searching for nuts, bolts, screws, sockets, or other parts that fall onto the floor while working. The device is primarily comprised of a body, further comprised of a top layer, a middle layer, further comprised of at least one magnet, and a bottom layer. Further, the top layer is comprised of a top surface that helps prevent against slips as well as stains from oils and other liquids. Further, the bottom surface is comprised of protrusions that prevent the device from sliding on the floor. The device is also comprised of a side surface comprised of at least one magnet to attach multiple devices together to encompass any size workstation.

Disclosed are electromagnetic cells assembled together. The plurality of Electromagnetic Cells are arranged in an electromagnetic plate, the electromagnetic plate can float or hover. The Electromagnetic Plate comprises an enclosure of a first set of alternating layers of electric and dielectric materials. The plurality of electromagnetic cells, each arranged in an individual socket embedded in the holding element inside the Electromagnetic plate, and each electromagnetic cell is comprised of a second set of alternating layers of electric and dielectric materials, and a holding cup cover that screws in to provide structural integrity and an electromagnetic core including a metal tube and electromagnetic coil. At the opening of the Electromagnetic Cell, a tube mechanism can be added which would allow certain liquids to be inserted inside of the cell. The cells heats up as a result of the electric current flowing through the coil inside of the cell, thus resulting in an increased temperature of such liquid.

A magnetic actuator for a magnetic suspension system includes a core section having an annular yoke and radially directed teeth joining the yoke. The magnetic actuator includes coils surrounding the teeth and a mechanical structure having a first section and a second section. The first section is attached to the yoke and conducts magnetic flux axially. The second section joins the first section and conducts the magnetic flux radially in a direction opposite to a direction of the magnetic flux in the teeth. The magnetic actuator includes a mechanical safety bearing that is between the second section and the teeth. Thus, the safety bearing is in a room surrounded by a magnetic flux circulation path. Therefore, the safety bearing does not increase an axial length of the magnetic suspension system.

A substrate transfer device is provided with: a movement tile provided in a substrate transfer region and including first magnets for changing a state of a magnetic field and a movement surface; a substrate transfer module including a second magnet that receives a magnetic force and configured to move along the movement surface while being floated from the movement surface by the magnetic force; a transfer controller for controlling the magnetic field formed by the first magnets to move the substrate transfer module along a preset route; a detector for detecting an index value corresponding to a magnitude of a deviation, from the preset route, of an actual movement path of the substrate transfer module moving along the movement surface; and a correction parameter calculation part for calculating a correction parameter for correcting the magnetic force acting on the second magnet based on the index value.