Abstract: A network registration method is described. The method including: reading a RPLMN recorded by a mobile device, when the mobile device is powered on, and obtaining a PLMN of a current candidate cell through network scanning; determining whether the mobile device is initially powered on in a roaming location, according to the RPLMN recorded by the mobile device and the PLMN of the current candidate cell; carrying out a network registration using the PLMN of the current candidate cell, when it is determined that the mobile device is initially powered on in the roaming location. A mobile device is also disclosed. The methods and devices described can simplify network registration when the mobile device is in the roaming location when the mobile device is initially powered. Thus, the network registration can be achieved more quickly.

Abstract: A commutator has a conductive layer, a segment layer and an insulating layer separating the conductive layer and the segment layer. The segment layer includes multiple commutator segments. A mounting hole is defined along an axis of the commutator passing through the conductive layer. The three-layer structure of the commutator forms a capacitor having an increased confronting area and reduced inter-plate distance. The capacitor thus has a greater capacitance and hence greater EMI absorbing capability, making it possible to reduce EMI emissions without additional EMI reduction components outside the commutator. A rotor and a motor employing the commutator are also disclosed.

Abstract: A brush assembly includes a circuit board, at least two brushes, power connecting terminals for connecting with an external power supply, and a power supply branch circuit connected in series between a corresponding one of the power connecting terminals and a corresponding one of the brushes. The brush assembly further comprises an EMI suppressor connected between the power supply branch circuit and ground. The EMI suppressor is an axial capacitor formed by a conductor core, a cover, and a filling medium. The cover is attached around the conductor core, and the filling medium is filled between the conductor core and the cover. A motor utilizing the brush assembly is also provided.

Abstract: An end cap assembly includes an end cap. The end cap includes an end wall, a sidewall, and a shielding member. The sidewall projects from one side of the end wall. The sidewall defines a cutout for allowing two conducting wires to pass therethrough, and the two conducting wires connect components mounted within the end cap to an external power source. The shielding member is disposed in the cutout. The end cap assembly provides enhanced EMI suppression. In addition, the present invention also provides a motor employing the end cap assembly.

Abstract: A commutator has a conductive layer, a segment layer and an insulatim layer separating the conductive layer and the segment layer. The segment layer includes multiple commutator segments. A mounting hole is defined along an axis of the commutator passing through the conductive layer. The three-layer structure of the commutator forms a capacitor having an increased confronting area and reduced inter-plate distance. The capacitor thus has a greater capacitance and hence greater EMI absorbing capability, making it possible to reduce EMI emissions without additional EMI reduction components outside the commutator. A rotor and a motor employing the commutator are also disclosed.

Abstract: An end cap assembly for an electric motor has a brush assembly, a circuit board, an inductor and a grounded metal element. The brush assembly has a plurality of brushes. The circuit board is fixed relative to the brush assembly. The inductor is electrically connected to the circuit board. The grounded metal element is positioned between the brushes and the inductor to absorb high frequency electromagnetic radiation transmitted from the brushes to the inductor.

Abstract: A motor includes motor terminals for connecting with an external power supply and an internal circuit connected to the motor terminals. The motor further includes a RF filter. The RF filter includes a conductive wire coiled in either a helical manner or a spiral manner. Terminals of the conductive wire at opposite axial ends of the coil are connected to a corresponding one of the motor terminals and the internal circuit, respectively. The intensity of the electromagnetic waves radiated from most parts of the conductive wire of the RF filter is attenuated by reflected electromagnetic waves from other parts of the conductive wire. Therefore, the intensity of the electromagnetic wave radiated from the motor is greatly reduced. A RF filter for the motor is also provided.

Abstract: The invention relates to circumferential movement field, including all circumferential movement devices such as transport vehicle, toy vehicle, space vehicle, blender etc, especially for energy-saving vehicles utilizing force of gravity. The energy-saving vehicle utilizes force of gravity as driving force, the vehicle body connects with the wheel by swing structure method or eccentric swing structure to utilize force of gravity more efficiently. The invention also provides solutions about two-wheel gravitational vehicle and multi-wheel vehicle and train connected by integrated vehicles or two-wheel vehicles.

Abstract: A mounting apparatus includes a supporting bracket, a locking member, and a holding mechanism. The supporting bracket is fixed to a slide rail and includes two inserting pins extending through the two corresponding through holes of a rack post. The locking member is slidably mounted to the supporting bracket. When the locking member slides to abut against a front surface of the rack post, the slide rail is prevented from moving backwards to make the inserting pins disengage from the through holes. When the locking member slides to space away from the rack post, the slide rail is enable to move backwards to make the inserting pins disengage from the through holes. The holding mechanism abuts against the locking member to prevent the locking member from sliding. The holding mechanism is operable to move away from the locking member.

Abstract: A slide rail assembly includes a first rail, a second rail slidably received in the first rail, a mounting bracket fixed to the second rail, a positioning member movably mounted to the mounting bracket, and a releasing member slidably mounted to the second rail. The first rail includes a holding portion. The positioning member engages with the holding portion to prevent the second rail from sliding into or out of the first rail. By sliding the releasing member, the releasing member drives the positioning member to disengage from the holding portion of the first rail, thereby enabling the second rail to slide into or out of the first rail.

Abstract: A fixing device includes a frame, a positioning member, and a fixing member. A first side end of a expansion card is fixed to a first side of the frame. The positioning member is mounted to a second side of the frame opposite to the first side and capable of sliding toward the first side of the frame. A number of cutouts are longitudinally defined in the second side of the frame. A receiving space is defined in a side of the positioning member for fixing a second end of the expansion card. The fixing member is mounted to the positioning member and selectively fixed to a corresponding cutout of the frame.

Abstract: The invention relates to circumferential movement field, including all circumferential movement devices such as transport vehicle, toy vehicle, space vehicle, blender etc, especially for energy-saving vehicles utilizing force of gravity. The energy-saving vehicle utilizes force of gravity as driving force, the vehicle body connects with the wheel by swing structure method or eccentric swing structure to utilize force of gravity more efficiently. The invention also provides solutions about two-wheel gravitational vehicle and multi-wheel vehicle and train connected by integrated vehicles or two-wheel vehicles.

Abstract: A slide rail includes a first slide and a second slide received in the first slide. The first slide includes a first main plate and two first side parts symmetrically placed on two opposite sides of the first main plate. The second slide includes a main body, an extending body received in the main body, and a slide post. The main body includes a second main plate and two second side parts symmetrically placed on two opposite sides of the second main plate. The second main plate includes a fixed hole defined therein. The extending body includes a third main plate and two third side parts symmetrically placed on two opposite sides of the third main plate. The third main plate defines a rail therein. The slide post is passed through the rail and fixed to the fixed hole.

Abstract: The present invention discloses a type of secure and efficient wheel assembly using fluid or solid stuffing materials so as to minimize the blowout risks, a wheel rim transmission assembly, an energy exchanging arrangement used in transporting system, and a vehicle energy storage system, as well as corresponding methods for manufacturing and preparing such assemblies and arrangements in applications.

Abstract: The invention relates to a circumferential movement field, including all circumferential movement devices such as transport vehicle, toy vehicle, space vehicle, blender etc, especially for energy-saving vehicles utilizing force of gravity. The energy-saving vehicle utilizes force of gravity as driving force, the vehicle body connects with the wheel by swing structure method or eccentric swing structure to utilize force of gravity more efficiently. The invention also provides solutions about two-wheel gravitational vehicle and multi-wheel vehicle and train connected by integrated vehicles or two-wheel vehicles.

Abstract: A slide rail includes a first slide and a second slide received in the first slide. The first slide includes a first main plate and two first side parts symmetrically placed on two opposite sides of the first main plate. The second slide includes a main body, an extending body received in the main body, and a slide post. The main body includes a second main plate and two second side parts symmetrically placed on two opposite sides of the second main plate. The second main plate includes a fixed hole defined therein. The extending body includes a third main plate and two third side parts symmetrically placed on two opposite sides of the third main plate. The third main plate defines a rail therein. The slide post is passed through the rail and fixed to the fixed hole.

Abstract: A slide rail assembly includes a first rail, a second rail slidably received in the first rail, a mounting bracket fixed to the second rail, a positioning member movably mounted to the mounting bracket, and a releasing member slidably mounted to the second rail. The first rail includes a holding portion. The positioning member engages with the holding portion to prevent the second rail from sliding into or out of the first rail. By sliding the releasing member, the releasing member drives the positioning member to disengage from the holding portion of the first rail, thereby enabling the second rail to slide into or out of the first rail.

Abstract: A method of synthesizing polyethyleneimine with a substantially linear backbone is disclosed. The method comprises exposing ethylenediamine dissolved in a solution to electromagnetic radiation for a sufficient time to polymerize the ethylenediamine and thereby resulting in formation of polyethylenimine with a substantially linear backbone in the solution. A method of synthesizing a homopolymer with a substantially linear backbone is also disclosed. In addition, a composition comprising polyethylenimine synthesized from the aforementioned method is disclosed, in which the polyethylenimine comprises a backbone conformation that is substantially linear and has a distribution of molecular weights (MW) ranging from 1 kDa to 200 kDa; and the polyethyleneimine has no cytotoxicity at a concentration of 12 ?g/ml.

Abstract: A mounting mechanism is disclosed. The mounting mechanism includes a chassis with an anchor member, a slide rail defining a mounting slot to receive the anchor member, and a retaining member slidably attached to the slide rail. A first end of the retaining member is pivotable attached to the slide rail. The retaining member comprises a stop surface and an inclined surface opposite to the stop surface formed from a second end of the retaining member. The anchor member slides in the mounting slot to drive the inclined surface of the retaining member to rotate the retaining member, when the anchor member rides over the stop portion, the retaining member is restored to make the stop surface of the stop portion retain the anchor member in the mounting slot of the slide rail.