Abstract: A remote computer is connected to a plurality of cloud servers of a data center. The remote computer obtains parameters of each cloud server and determines available cloud servers. The remote computer calculates an installation coefficient of each available cloud server according to the parameters of the available cloud server. The remote computer installs the virtual machine in the available cloud server according to a maximum installation coefficient.

Abstract: When a server receives a request for accessing a first business system from a client and a first request data packet sent from another business system, the server determines that an access mode of the client is single-point login access. Then the server validates if the client has authority to access the first business system according to data in the first request data packet and data in an information list, and allows the client to access the first business system if the client has the authority, or rejects the client to access the first business system if the client does not have the authority. When receiving a request of switching the client from the first business system to a second business system, the server sends a second request data packet to the second business system.

Abstract: An exemplary frame assembly includes a mounting frame and a fixing frame which is detachably mounted inside the mounting frame. The fixing frame includes two opposite side plate and two latching assemblies. Each latching assembly includes two connecting arms, a main body and a handle. Each connecting arm includes a first section extends from a front end of a corresponding one of the first and second side plate a predetermined distance and coplanar with the corresponding one of the first and second side plate and a second section bent backwards from the first section and overlapping the first section. Each second section includes a first latching portion. The mounting frame includes two second latching portions. The two first latching portions of the two latching assemblies cooperate with the two second latching portions to lock the fixing frame to the mounting frame.

Abstract: An auto-focus method controls a motor to drive an optical lens of a lens module to a focus point and includes steps of: describing a first parabola according to three coordinate points in a coordinate system; describing a second parabola according to a first highest point of the first parabola and two coordinate points selected from the three coordinate points in the coordinate system, wherein the resolution values of two selected coordinate points are greater than that of unselected coordinate point; comparing a difference between the electric current value of a second highest point of the second parabola and the electric current value of the first highest point with a preset value; wherein when the difference is less than the preset value, the second highest point is regarded as the focus point.

Abstract: An adhesive dispensing assembly includes a positioning module, a driving rod, a guiding block, a screw nut, a moving rod, and a motor. The positioning module is for positioning an adhesive cylinder. The screw nut is secured in the guiding block and engages with the driving rod by means of a screw thread. The moving rod has one end fastened to the guiding block and the other end for moving the adhesive cylinder. The motor drives the driving rod to rotate to move the screw nut, the guiding block, and the moving rod in one direction or another. An adhesive dispenser using the assembly is also described.

Abstract: A handling mechanism for handling workpieces includes a first sliding assembly, a second sliding assembly, a driving assembly, a loading assembly and a clamping assembly. The driving assembly is connected to the first sliding assembly and the second sliding assembly. The loading assembly is slidably clamped between the first sliding assembly and the second sliding assembly. The clamping assembly is fixed to the loading assembly for clamping and placing workpieces one by one. The first sliding assembly and the second sliding assembly are driven by the driving assembly to slide along a same direction or in two opposing directions, to enable the loading assembly to slide with the first sliding assembly or to slide along a direction perpendicular to the sliding direction of the first sliding assembly. A punching machine using the handling mechanism is also disclosed, in which workpieces are placed by clamping assembly on lower mold for punching.

Abstract: A curved surface area calculation device and method generates a contour curve consisting of border points of a curved surface, and determines an approximate poly-line of the contour curve in a parametric plane. An approximate polygon of the approximate poly-line is generated according to vertices of the approximate poly-line and preset sample points. The approximate polygon is further meshed by a plurality of triangles. An area of the curved surface is calculated according to the plurality of triangles.

Abstract: A computer enclosure includes a cover and a chassis. The cover includes a clasp. The chassis defines an engaging hole and a cutout adjacent to the engaging hole. An edge of the cutout extends in the cutout to form an elastic clip. The clip includes a driving portion which is located below the flange. The clasp penetrates the engaging hole sliding, engages with the flange, and simultaneously pushes the driving portion to place the clip in contact with the cover.

Abstract: A method for switching user modes of a communication apparatus is provided. The method comprises: controlling an angle sensor periodically to detect an angle of inclination of the communication apparatus, determining which range the detected angle of inclination is within; determining an associated user mode of the determined range; determining whether the user mode of the determined range is the same as a current user mode; enabling the associated audio receiving unit and audio output unit of the user mode of the determined range and disabling the associated audio receiving unit and audio output unit of the current user mode if the user mode of the determined range is not the same as the current user mode.

Abstract: A testing system for testing a conversion efficiency of a power supply unit (PSU) includes a power meter, a plurality of switches, a multimeter, a microcontroller unit, and a data processing device. The power meter is utilized to measure an input power supplied to the power supply unit. The multimeter is utilized to measure an output power of PSU. The microcontroller unit is configured for automatically switching the plurality of switches for enabling the multimeter to measure the output power of power supply. The data processing device is utilized to read data measured from the power meter and the multimeter and calculate a conversion efficiency of the PSU.

Abstract: The present disclosure provides a focus module including a substrate, a holder, at lease one second magnet, a frame and an elastic element. The substrate includes at least one first magnet and an aperture. The frame is fixed on the substrate and defining a hole receiving the holder. The second magnet is fixed on the holder. At least one of the first magnet and the second magnet is an electromagnet. The elastic element includes a first end, a second end, and at least one U-shape bend connected the first and second ends. The first end is fixed on the side surface of the holder. The second end is fixed on the inner surface of the hole. The two sides of the U-shape bend are parallel to the side surface of the holder and the inner surface of the hole. The present invention also provides a method for manufacturing the focus module.

Abstract: An electronic device includes a first display, a second display, numerous of first and second guide rail members, a movable unit, and a driver unit. The first guide rail members are configured for guiding the first display to move between a first position and a second position, and the second guide rail members are configured for guiding the second display to move between a third position and a fourth position. The driver unit is configured for driving the movable unit to move the second display between the fourth position and a fifth position along a direction perpendicular to the sliding direction of the second display. When the first display is in the second position and the second display is in the fifth position, the first display and the second display are coplanar.

Abstract: A computer system includes a chassis and a fan module attached to the chassis. The fan module includes a rotor, a side panel coaxial with the rotor, and a cylindrical cover extending from the side panel for encasing the rotor. One side of the rotor is covered and protected by the side panel, while another side of the rotor is bare. The chassis includes an air vent for exposing the bare side of the rotor. An airflow-guiding part inwardly protrudes from an edge of the air vent and abuts the cylindrical cover of the fan module.

Abstract: A locking mechanism is provided for securing a plug with a cable to an electronic device. The locking mechanism includes a base portion configured to abut against a side of the plug, a pressing portion slantingly extending from an end of the base portion, at least one tab protruding from the pressing portion near the base portion, and a clamping portion extending from the other end of the base portion and configured to engage with the cable.

Abstract: A toy eye includes a casing having a transparent top portion, a lens defining a through hole, and a pupil received in through hole of the lens. The lens and the pupil are both made of soft resilient material, and clung to the transparent top portion of the casing. The toy eye also includes a push-pull element for pushing the pupil towards the transparent top portion of the casing or pulling the pupil reversely. The toy eye further includes a light processing element for sensing the change of the outside light intensity and generating a driving signal when the value of the change of the light intensity reaches or exceeds a predetermined value, and a driving element for driving the push-pull element to push or pull the pupil, upon receiving the driving signal from the light processing element.

Abstract: A stamping die (20) includes a base set (21), a punch (241, 242, 243, 244, 245) detachably assembled on the base set, and a stripper plate (23) disposed on top of the base set. The stripper plate defines a through hole (231) through which the punch passes, and at least one elastic member (28) is disposed between the base set and the stripper plate. The stamping die can punch different shaped holes by means of changing the punch.

Abstract: A parameters calibrating system is used for computing an optimal parameters value set for an optical disc drive. The parameters calibrating system includes a measuring apparatus, an input terminal, and a parameters calibrating apparatus. The measuring apparatus is used for measuring the optical disc drive to get an original parameters value set. The input terminal is used for entering constant factors and predetermined constraints. The parameters calibrating apparatus is used for computing the optimal parameters value set according to the original parameters value set, the constant factors, and the predetermined constraints, and outputting the optimal parameters value set to the optical disc drive. A parameters calibrating method for computing the optimal parameters value set is also disclosed.

Abstract: A field emission cathode includes a conductive substrate and a carbon nanotube film disposed on a surface of the conductive substrate. The carbon nanotube film includes a plurality of successive and oriented carbon nanotube bundles parallel to the conductive substrate, the carbon nanotubes partially extrude from the carbon nanotube film. A method for fabricating the field emission cathode includes the steps of: (a) providing a conductive substrate; (b) providing at least one carbon nanotube film, the carbon nanotube film including a plurality of successive and oriented carbon nanotube bundles joined end to end, the carbon nanotube bundles parallel to the conductive substrate, and (c) disposing the at least one carbon nanotube film to the conductive substrate to achieve the field emission cathode.

Abstract: A system for dynamically controlling attendance of a group of employees includes a corporation website (12), an application server (13), a database (15), and a number of client computers (10). The application server includes an attendance management module (131) for performing operations of recording an arrival time, a departure time and a work place of each employee, calculating actual work hours according to the arrival time and departure time, comparing the actual work hours to normal work hours specified in corresponding attendance requirements, and processing abnormal attendance statuses. A related method for dynamically controlling attendance of a group of employees is also disclosed.