Abstract: A computer system including an electronic device and an input device is disclosed. The electronic device includes a touch display area and a control unit. The input device includes a plurality of positioning structures and a grounding piece. The positioning structures are electrically connected to the grounding piece. When the input device is disposed on the touch display area of the electronic device, the control unit detects positions of the positioning structures on the touch display area, calculates a coverage area covered by the input device on the touch display area according to the positions, and determines a range of a display area of the touch display area according to the coverage area.

Abstract: An emission reduction device for cooking fumes produced from smoking, frying and roasting is provided, which includes a purifying-tank shell. One end of the purifying-tank shell is provided with an air inlet and other end of the purifying-tank shell is provided with an air outlet. The device further includes a nebulizer, an ultrasonic coagulating unit, and an electrostatic deposition unit, which are sequentially arranged in the purifying-tank shell from the air inlet to the air outlet. A box body is connected to the air outlet of the purifying-tank shell, the box body is provided with a photocatalytic oxidation unit, a plasma catalytic oxidation assembly and an end filter unit therein. An exhaust port is installed on a rear side of the box body. Two sides of the ultrasonic coagulating unit are each provided with a flow rectifier which is longitudinally and slidably arranged in the purifying-tank shell.

Abstract: A computer system including an electronic device and an input device is disclosed. The electronic device includes a touch display area and a control unit. The input device includes a plurality of positioning structures and a grounding piece. The positioning structures are electrically connected to the grounding piece. When the input device is disposed on the touch display area of the electronic device, the control unit detects positions of the positioning structures on the touch display area, calculates a coverage area covered by the input device on the touch display area according to the positions, and determines a range of a display area of the touch display area according to the coverage area.

Abstract: A computer system including an electronic device and an input device is disclosed. The electronic device includes a touch display area and a control unit. The input device includes a plurality of positioning structures and a grounding piece. The positioning structures are electrically connected to the grounding piece. When the input device is disposed on the touch display area of the electronic device, the control unit detects positions of the positioning structures on the touch display area, calculates a coverage area covered by the input device on the touch display area according to the positions, and determines a range of a display area of the touch display area according to the coverage area.

Abstract: A computer system including an electronic device and an input device is disclosed. The electronic device includes a touch display area and a control unit. The input device includes a plurality of positioning structures and a grounding piece. The positioning structures are electrically connected to the grounding piece. When the input device is disposed on the touch display area of the electronic device, the control unit detects positions of the positioning structures on the touch display area, calculates a coverage area covered by the input device on the touch display area according to the positions, and determines a range of a display area of the touch display area according to the coverage area.

Abstract: The invention discloses a roasting method for meat based on temperature, including: cooking: cooking the pretreated raw meat to center temperature of 70-80 degree Celsius, and maintaining for 1-2 min; drying: performing drying treatment of the surface of the raw meal: after cooking treatment; roasting: roasting the dried raw meat to surface temperature of 110-120 degree Celsius and maintaining for 5-8 min. The inventive method uses the cooking center temperature and the roasting surface temperature as key control points of roast meat to facilitate on-line monitoring and automatic production, which is an economical and practical new roasting method. The roast meat prepared by the inventive method not only ensures color and flavor of traditional roasting method, but also shortens roasting time. The roasting method can be used for the industrial production of roast meat.

Abstract: A brightness calibration method used in an optical detection system includes a single source illuminator and a probe card. The single source illuminator is configured to illuminate the probe card. The probe card has a plurality of detection sites. The brightness calibration method includes: sequentially detecting brightness values at the detection sites through one of a plurality of diffusers by a sensing chip; sequentially detecting transparencies of the diffusers at one of the detection sites by the sensing chip; and selecting and respectively disposing the diffusers corresponding to larger ones of the transparencies over the detection sites corresponding to smaller ones of the brightness values, and selecting and respectively disposing the diffusers corresponding to smaller ones of the transparencies over the detection sites corresponding to larger ones of the brightness values.

Abstract: Methods and apparatus are provided for displaying shadows of circular light sources. A computing device can determine a light source and an occluding polygon that is between the light source and a receiver surface, where the occluding polygon includes vertices connected by edges. The computing device can determine a shadow of the occluding polygon on the receiver surface by at least: determining, for a particular vertex, a projection vertex on the receiver surface by projecting a ray from the center point through the particular vertex; determining an outline polygon based on the projection vertex; determining a projection circle around the projection vertex; determining a penumbra of the shadow based on exterior tangents outside of the outline polygon; and determining an umbra of the shadow based on interior tangents inside the outline polygon. The computing device can display at least part of the shadow.

Abstract: In a production system for vapor-grown carbon nanofibers includes a static mixer and a micro mist nozzle for preventing un-uniform input material from forming impurities, an anti-adhering coating covering an inner wall of a vertical tubular reactor for preventing a catalyst, raw material and carbon fibers from adhering to the inner wall of the vertical tubular reactor, and a sedimentation device into which a dispersant and water are inputted to separate produced carbon fiber compositions from particulate impurities in water.

Abstract: A driving device with correction function is provided herein and utilizes a sensing resistor to detect the variation in an operation amplifier. A signal generated by an offset voltage correction circuit is fed back to the operation amplifier and the offset voltage of the abnormal input in the operation amplifier is corrected to be zero so as to keep the operation amplifier under the best performance condition. The driving device implements in the wireless charger driving system can enhance the accuracy of the current value and can achieve good output performance and better system stability.

Abstract: Methods and apparatus are provided for displaying shadows of circular light sources. A computing device can determine a light source and an occluding polygon that is between the light source and a receiver surface, where the occluding polygon includes vertices connected by edges. The computing device can determine a shadow of the occluding polygon on the receiver surface by at least: determining, for a particular vertex, a projection vertex on the receiver surface by projecting a ray from the center point through the particular vertex; determining an outline polygon based on the projection vertex; determining a projection circle around the projection vertex; determining a penumbra of the shadow based on exterior tangents outside of the outline polygon; and determining an umbra of the shadow based on interior tangents inside the outline polygon. The computing device can display at least part of the shadow.

Abstract: Methods and apparatus are provided for displaying shadows of circular light sources. A computing device can determine a light source and an occluding polygon that is between the light source and a receiver surface, where the occluding polygon includes vertices connected by edges. The computing device can determine a shadow of the occluding polygon on the receiver surface by at least: determining, for a particular vertex, a projection vertex on the receiver surface by projecting a ray from the center point through the particular vertex; determining an outline polygon based on the projection vertex; determining a projection circle around the projection vertex; determining a penumbra of the shadow based on exterior tangents outside of the outline polygon; and determining an umbra of the shadow based on interior tangents inside the outline polygon. The computing device can display at least part of the shadow.

Abstract: A brightness calibration method used in an optical detection system includes a single source illuminator and a probe card. The single source illuminator is configured to illuminate the probe card. The probe card has a plurality of detection sites. The brightness calibration method includes: sequentially detecting brightness values at the detection sites through one of a plurality of diffusers by a sensing chip; sequentially detecting transparencies of the diffusers at one of the detection sites by the sensing chip; and selecting and respectively disposing the diffusers corresponding to larger ones of the transparencies over the detection sites corresponding to smaller ones of the brightness values, and selecting and respectively disposing the diffusers corresponding to smaller ones of the transparencies over the detection sites corresponding to larger ones of the brightness values.

Abstract: A motor driving device with stop mode setting and driving method thereof comprises a PWM converting circuit, an oscillator circuit, a first comparator, a second comparator, and a control unit. The second comparator compares a tunable stop setting signal with an analog signal to output a stop setting signal to the control unit. Therefore, the control unit determines a duty cycle for stopping a motor, and thus reducing energy loss of the motor and promoting motor efficiency.

Abstract: In a production system for vapor-grown carbon nanofibers includes a static mixer and a micro mist nozzle for preventing un-uniform input material from forming impurities, an anti-adhering coating covering an inner wall of a vertical tubular reactor for preventing a catalyst, raw material and carbon fibers from adhering to the inner wall of the vertical tubular reactor, and a sedimentation device into which a dispersant and water are inputted to separate produced carbon fiber compositions from particulate impurities in water.

Abstract: A method for forming a vapor-grown graphite fibers (VGGF) composition and a VGGF composition formed by the method are provided. In this method, a transition metal compound catalyst and three organic co-catalysts are mixed with a hydrocarbon compound, and then are delivered into a tubular reactor and pyrolized and graphitized to produce the VGGF composition. The VGGF composition includes a carbon ingredient containing a carbon content of at least 99.9 wt %. The carbon ingredient has a graphitization degree of at least 75%, and the carbon ingredient includes non-fibrous carbon and fibrous VGGF, wherein an area ratio of the non-fibrous carbon to the fibrous VGGF is about equal to or smaller than 5%. The fibrous VGGF include graphite fibers having a 3-D linkage structure, wherein the content of the graphite fibers having the 3-D linkage structure in the fibrous VGGF is about between 5 area % and 50 area %.

Abstract: Methods and apparatus are provided for displaying shadows of circular light sources. A computing device can determine a light source and an occluding polygon that is between the light source and a receiver surface, where the occluding polygon includes vertices connected by edges. The computing device can determine a shadow of the occluding polygon on the receiver surface by at least: determining, for a particular vertex, a projection vertex on the receiver surface by projecting a ray from the center point through the particular vertex; determining an outline polygon based on the projection vertex; determining a projection circle around the projection vertex; determining a penumbra of the shadow based on exterior tangents outside of the outline polygon; and determining an umbra of the shadow based on interior tangents inside the outline polygon. The computing device can display at least part of the shadow.

Abstract: Methods and apparatus are provided for displaying shadows of polygonal light sources. A computing device can determine a light-source polygon of a polygonal light source, where the light-source polygon includes light-source vertices. The computing device can determine an occluding polygon between the light-source polygon and a background surface. The computing device can determine a shadow of the occluding polygon on the background surface by: for each light-source vertex, determining a vertex-shadow region of the background surface corresponding to a shadow cast upon the background surface by the occluding polygon for light emitted from the light-source vertex, determining an umbra of the shadow based on an intersection of the vertex-shadow regions, and determining a penumbra of the shadow based on a convex representation of a union of vertex-shadow regions. The computing device can display the shadow.