Abstract: A method includes: identifying a first set of key features in a first inspection image characterizing geometric properties of a set of predefined features; extracting a first set of real dimensions of the first set of key features from the first inspection image; projecting the first set of real dimensions proximal the first set of key features onto the first inspection image; receiving confirmation of a first subset of key features, in the first set of key features, from a user; identifying the first subset of key features in a second inspection image; identifying a second set of key features in the second inspection image characterizing properties of the set of predefined features, the second set of key features distinct from unconfirmed features in the first set of key features; and extracting a second set of real dimensions of the second set of key features from the second inspection image.

Abstract: A method includes: identifying a first set of key features in a first inspection image characterizing geometric properties of a set of predefined features; extracting a first set of real dimensions of the first set of key features from the first inspection image; projecting the first set of real dimensions proximal the first set of key features onto the first inspection image; receiving confirmation of a first subset of key features, in the first set of key features, from a user; identifying the first subset of key features in a second inspection image; identifying a second set of key features in the second inspection image characterizing properties of the set of predefined features, the second set of key features distinct from unconfirmed features in the first set of key features; and extracting a second set of real dimensions of the second set of key features from the second inspection image.

Abstract: A graphene quantum dots synthesis method includes fixing a graphene aqueous solution or a graphene oxide aqueous solution on a spin coater to spin the graphene aqueous solution or the graphene oxide aqueous solution, and irradiating a pulsed laser to focus on a graphene aqueous solution or a graphene oxide aqueous solution to generate exfoliation. After a processing period, quantum dots are generated in the graphene aqueous solution or the graphene oxide aqueous solution. Since graphene aqueous solution or graphene oxide aqueous solution does not contain organic chemistry pharmacy, the quantum dots synthesized by the method of the present invention can be produced without pollution. Furthermore, the purpose of simple process, low cost, and time-saved of synthesis can be achieved.

Abstract: A graphene quantum dots synthesis method includes fixing a graphene aqueous solution or a graphene oxide aqueous solution on a spin coater to spin the graphene aqueous solution or the graphene oxide aqueous solution, and irradiating a pulsed laser to focus on a graphene aqueous solution or a graphene oxide aqueous solution to generate exfoliation. After a processing period, quantum dots are generated in the graphene aqueous solution or the graphene oxide aqueous solution. Since graphene aqueous solution or graphene oxide aqueous solution does not contain organic chemistry pharmacy, the quantum dots synthesized by the method of the present invention can be produced without pollution. Furthermore, the purpose of simple process, low cost, and time-saved of synthesis can be achieved.

Abstract: A paper-feeding device and a multi-functional printer are provided. The paper-feeding device includes a base, a driving axle, a position-limiting element and a retaining element. The base has a first assembling portion. The driving axle, the position-limiting and the retaining elements are all in the base. The position-limiting element has a second assembling portion and two position-limiting portions on radial directions of the second assembling portion between the inserting portion and the body. The retaining element includes a swing frame, a paper-separating element and a spring. The body of the swing frame is located between the two position-limiting portions. The first and second pivoting portions coaxial and connect the body are pivoted respectively to the first and second assembling portions. The inserting portion of the paper-separating element is sheathed by the body and the separating element leans against the driving axle.

Abstract: A paper-feeding device and a multi-functional printer are provided. The paper-feeding device includes a base, a driving axle, a position-limiting element and a retaining element The base has a first assembling portion. The driving axle, the position-limiting and the retaining elements are all in the base. The position-limiting element has a second assembling portion and two position-limiting portions on radial directions of the second assembling portion between the inserting portion and the body. The retaining element includes a swing frame, a paper-separating element and a spring. The body of the swing frame is located between the two position-limiting portions. The first and second pivoting portions coaxial and connect the body are pivoted respectively to the first and second assembling portions. The inserting portion of the paper-separating element is sheathed by the body and the separating element leans against the driving axle.