Abstract: A cooking apparatus is provided. The cooking apparatus includes a heat-gathering unit and an external discharge unit, the heat-gathering unit includes an external discharge connecting member and is provided with a cooking cavity formed on an inner side of the external discharge connecting member. The external discharge unit includes a flow guide member, the flow guide member is connected to the external discharge connecting member and is provided with an external discharge channel. The exhaust unit further includes a baffle member located in the external discharge channel. The baffle member is provided with an external leakage gap, and the external leakage gap is in communication with the cooking cavity with the external discharge channel; and/or, the external leakage gap is in communication with the exhaust discharge channel with an outside of the cooking apparatus.

Abstract: The present application relates to a baking cooking apparatus. The baking cooking apparatus includes an cooking-chamber assembly, a hot fan baffle, a back plate and a purification assembly. The cooking-chamber assembly and the back plate are respectively located on two sides of the hot fan baffle. A cooking chamber is formed between one side of the hot fan baffle and the cooking-chamber assembly. A hot air chamber is formed between the other side of the hot fan baffle and the back plate. The hot fan baffle is provided with air outlet holes and a return air holes to communicate the cooking chamber with the hot air chamber. At least part of the purification assembly is arranged in the hot air chamber.

Abstract: A method and an apparatus for evaluating an efficient lane change capability. The method involves assessing a vehicle's lane-change efficiency based an effectiveness score and/or a suppression loss score. For each lane-change period, an effectiveness score is calculated based on the traveling status information of the vehicle, the traffic scenario information, a lane change intention corresponding to the lane change decision instruction, and a lane change intention execution result. For each non-lane-change time period, a suppression loss score is computed to reflect missed opportunities. Finally, an overall efficiency score is derived from these values.

Abstract: A wind outlet mechanism for a range hood comprises a wind outlet and a decorative cover. The decorative cover has a plurality of wind discharge holes, a flow guide member is disposed inside the decorative cover, and the flow guide member has a cambered flow guide surface opposite to and protruding toward the wind outlet. The flow guide surface can make the air flow discharged from the wind discharge holes on the decorative cover.

Abstract: A wind outlet mechanism for a range hood comprises a wind outlet and a decorative cover. The decorative cover has a plurality of wind discharge holes, a flow guide member is disposed inside the decorative cover, and the flow guide member has a cambered flow guide surface opposite to and protruding toward the wind outlet. The flow guide surface can make the air flow discharged from the wind discharge holes on the decorative cover.

Abstract: Disclosed is a magnetic-fluid momentum sphere, which is used for satellite attitude adjustment. The magnetic-fluid momentum sphere comprises stators and a spherical shell. The stators are classified into three groups, axes of the three groups of stators are orthogonal to each other, each group comprises two stators arranged symmetrically about the center of the spherical shell, and the inner surfaces of the stators are spherical surfaces. The spherical shell is formed by combining two hemispherical shells, the material of the spherical shell is a non-ferromagnetic material, the inner surfaces of the stators closely adhere to the outer surface of the spherical shell, there is no relative movement between the spherical shell and the inner surfaces of the stators, and the spherical shell is filled with magnetic fluid. The magnetic-fluid momentum sphere achieves a small size and mass, low costs, and small coupling among the axes.

Abstract: A magnetic levitation reaction sphere includes a spherical-housing-shaped rotor and three groups of stators. Each group includes two stators using the sphere center of the rotor as a symcenter. Axes of the three groups are mutually orthogonal. Each stator comprises a stator core and a coil array. An air gap is reserved between an inner surface of each stator core and the outer surface of the rotor. Through grooves are radially formed in the stator cores. The coil arrays are disc-type motor stator windings. Two effective sides of each coil in each coil array are respectively placed in two through grooves of the corresponding stator core. The magnetic levitation reaction sphere has low cost; levitation and rotation driving are integrated; the magnetic levitation reaction sphere has a simple and compact structure, a small size and a low mass, and relates to inherent stable levitation; and the levitation control is simple.

Abstract: Disclosed is a magnetic-fluid momentum sphere, which is used for satellite attitude adjustment. The magnetic-fluid momentum sphere comprises stators and a spherical shell. The stators are classified into three groups, axes of the three groups of stators are orthogonal to each other, each group comprises two stators arranged symmetrically about the center of the spherical shell, and the inner surfaces of the stators are spherical surfaces. The spherical shell is formed by combining two hemispherical shells, the material of the spherical shell is a non-ferromagnetic material, the inner surfaces of the stators closely adhere to the outer surface of the spherical shell, there is no relative movement between the spherical shell and the inner surfaces of the stators, and the spherical shell is filled with magnetic fluid. The magnetic-fluid momentum sphere achieves a small size and mass, low costs, and small coupling among the axes.

Abstract: A magnetic levitation reaction sphere includes a spherical-housing-shaped rotor and three groups of stators. Each group includes two stators using the sphere center of the rotor as a symcenter. Axes of the three groups are mutually orthogonal. Each stator comprises a stator core and a coil array. An air gap is reserved between an inner surface of each stator core and the outer surface of the rotor. Through grooves are radially formed in the stator cores. The coil arrays are disc-type motor stator windings. Two effective sides of each coil in each coil array are respectively placed in two through grooves of the corresponding stator core. The magnetic levitation reaction sphere has low cost; levitation and rotation driving are integrated; the magnetic levitation reaction sphere has a simple and compact structure, a small size and a low mass, and relates to inherent stable levitation; and the levitation control is simple.

Abstract: A six-degree-of-freedom displacement measurement method for an exposure region on a wafer stage, the wafer stage comprises a coil array and a movable platform. A planar grating is fixed below a permanent magnet array of the movable platform. A reading head is fixed in a gap of the coil array. A measurement region is formed on the planar grating by an incident measurement light beam of the reading head. The reading head measures the six-degree-of-freedom displacement of the measurement region, so that the six-degree-of-freedom displacement of the exposure region is obtained through calculation. In the method, the six-degree-of-freedom displacement of the exposure region at any time is measured; the measurement complexity is reduced and the measurement precision is improved, and especially, the six-degree-of-freedom displacement of the exposure region can be precisely measured at any time even if the movable platform has high flexibility.

Abstract: A six-degree-of-freedom displacement measurement method for an exposure region on a wafer stage, the wafer stage comprises a coil array and a movable platform. A planar grating is fixed below a permanent magnet array of the movable platform. A reading head is fixed in a gap of the coil array. A measurement region is formed on the planar grating by an incident measurement light beam of the reading head. The reading head measures the six-degree-of-freedom displacement of the measurement region, so that the six-degree-of-freedom displacement of the exposure region is obtained through calculation. In the method, the six-degree-of-freedom displacement of the exposure region at any time is measured; the measurement complexity is reduced and the measurement precision is improved, and especially, the six-degree-of-freedom displacement of the exposure region can be precisely measured at any time even if the movable platform has high flexibility.