Abstract: A communication device including a ground element and an antenna element is provided. An edge of the ground element has a notch, and the antenna element includes a metal element disposed inside the notch. The metal element of the antenna element has a first end and a second end. The first and second ends are spaced away from each other and are respectively positioned adjacent to two ends of a diagonal line of the notch. The first end is used as a first feeding point of the antenna element, and the second end is used as a second feeding point of the antenna element. The first feeding point is coupled through a switch and a first matching circuit to a first signal source, and the second feeding point is coupled through an inductive element and a second matching circuit to a second signal source.

Abstract: Disclosed is a method for making dimethyl ether by reactive distillation. The method provides a reactive distillation tower with a top, a bottom, and rectification, reaction and stripping zones defined therein. The top of the reactive distillation tower is retained at 25° C. to 40° C. while the bottom of the reactive distillation tower is retained at 84.6° C. to 170° C. Each of the rectification, reaction and stripping zones includes several sieving trays. The reaction zone of the reactive distillation tower is filled with catalyst. The pressure in the reactive distillation tower is lower than 8.0 bars. Methanol is introduced into the reactive distillation tower so that the methanol travels from the reaction zone toward the bottom for contact with the catalyst to provide a top stream and a bottom stream. The top stream includes dimethyl ether. The bottom stream includes water and a remaining portion of the methanol. Finally, the dimethyl ether is collected in the top of the reactive distillation tower.

Abstract: A method for displaying graphic content on an extension screen, comprising: when a detected user activity at a host screen is matched to one of a plurality of gestures, providing a gesture icon in response to the matched gesture; and providing a shared content according to an original content, such that a combined content, which is a combination of the shared content and the gesture icon, can be displayed on the extension screen. An associated system is also disclosed.

Abstract: A communication device including a ground element and an antenna element is provided. The antenna element is close to the ground element. The antenna element includes a first radiation element and a second radiation element. The first radiation element provides a first current path and operates in a first band. The second radiation element provides a second current path and operates in a second band. The frequencies of the second band are higher than those of the first band, and the length of second current path is greater than that of first current path.

Abstract: An organic dispersion is provided. The organic dispersion includes an organic solvent, and an inorganic nano sheet material modified by a fluoro-containing modifier and dispersed in the organic solvent, wherein the inorganic nano sheet material is in a size from 20 to 80 nm, and the organic dispersion has a solid content from 1 to 20 wt %. Further, a weight ratio of the fluoro-containing modifier in the inorganic nano sheet material to the inorganic nano sheet material is in a range from 0.06 to 1.5.

Abstract: A communication device including a ground element, an antenna element and a switching unit is provided. The antenna element is substantially a loop antenna and includes a first part, a second part and a third part. The second part includes (N?1) bends for forming N connection sections. The third part includes (P?1) bends for forming P ground sections. The N connection sections are connected in series between a first end of a first ground section and the first part. A second end of an ith ground section is electrically connected to a first end of an (i+1)th ground section, i is an integer and 1?i?(P?1). A second end of a Pth ground section is electrically connected to the ground element, and a (P?1)th ground section includes at least one ground point. The switching unit is electrically connected between the at least one ground point and the ground element.

Abstract: A communication device includes a system circuit board, a ground plane, a first antenna, a second antenna, a first metal element, and a second metal element. The ground plane is disposed on the system circuit board. The first metal element is substantially located between the first antenna and the second antenna. The first metal element is coupled to the ground plane such that a system ground plane is formed. The second metal element is adjacent to the first metal element and substantially located between the first antenna and the second antenna. The second metal element is coupled to the system ground plane. The first antenna, the second antenna, and the first metal element are substantially located at an edge of the system circuit board.

Abstract: An assembly of a chip antenna and a circuit board includes a chip antenna and a circuit board. The circuit board includes a ground layer. The ground layer includes a hollow region formed adjacent to a periphery of the ground layer. The hollow region of the ground layer can be used for configuring an input impedance of the circuit board. The chip antenna is disposed in the hollow region of the ground layer, electrically connecting to the ground layer. The chip antenna includes input impedance. The input impedance of the chip antenna is adjustable to achieve a conjugate impedance match between the chip antenna and the circuit board such that the circuit board and the chip antenna can simultaneously radiate electromagnetic energy.

Abstract: A communication device includes a ground element, an antenna element, a circuit element group, and a communication module. The antenna element is a loop antenna. One end of the antenna element is a grounding end coupled to the ground element, and the other end of the antenna element is a feeding end close to the grounding end. The circuit element group includes at least two separate circuit element sub-groups. The communication module is coupled to the circuit element group. One of the circuit element sub-groups of the circuit element group is selectively coupled to the feeding end so as to make the antenna element operate in different communication bands.

Abstract: An optical device structure with a light outcoupling layer is provided. The optical device structure includes a substrate having a first surface and a second surface, and a layer of polyimide (PI) or its copolymer formed on the first surface of the substrate, wherein the layer of polyimide or its copolymer is prepared from at least one aromatic diamine and at least one cycloaliphatic dianhydride, and an optical component formed on the layer of polyimide or its copolymer.

Abstract: An optical disc drive including a case, a tray, a traverse, a plurality of washers, a plurality of fastening elements and a plurality of adjustment elements is provided. The tray is suitable for carrying an optical disc and includes a plurality of hollow alignment pillars. The traverse is disposed on the tray and includes a plurality of alignment holes for containing the corresponding hollow alignment pillars. Each washer is disposed in each of the alignment holes and leans between each of the alignment holes and each of the hollow alignment pillars. The fastening elements lock the traverse onto the tray. Each adjustment element leans between each of the washers and the tray, and bears an engagement pressure.

Abstract: An image processing method is provided. The image processing method is applicable to a display having a stream of drawing as an input for selecting at least a portion of an image thereon as a selected image region. The method includes steps of identifying the input as a closed region input and then performing an image operation.

Abstract: An electronic device and a user interface display method thereof are provided. The electronic device organizes a plurality of computer programs executable on the electronic device into a virtual book. Each page of the virtual book includes a user interface of one of the computer programs. The electronic device displays one of the pages as a current page so that the user interface of the current page is accessible to a user of the electronic device. The electronic device senses movement and/or pressure caused by the user and interprets the movement and/or the pressure as operating actions of the user on the virtual book. The electronic device downloads new computer programs from a download server and adds corresponding new pages into the virtual book. At lease one of the computer programs provides a service of a corporate operator of a wireless service network.

Abstract: An optical disk drive including a housing, a top cover, a spindle motor and a supporting element is provided. The housing has an accommodating space. The top cover covers the accommodating space. The spindle motor is disposed within the accommodating space and has a shaft. The supporting element is disposed between an end of the shaft and the top cover. When the top cover is deformed, the shaft props up the top cover through the supporting element.

Abstract: An optical disk drive including a housing, a top cover, a spindle motor and a supporting element is provided. The housing has an accommodating space. The top cover covers the accommodating space. The spindle motor is disposed within the accommodating space and has a shaft. The supporting element is disposed between an end of the shaft and the top cover. When the top cover is deformed, the shaft props up the top cover through the supporting element.

Abstract: An image processing method is provided. The image processing method is used for using a stream of drawing as an input on an image displayed on a display. The image processing method includes steps of identifying the input as a non-closed region input and performing an image rotation operation.

Abstract: Disclosed is a method for making dimethyl ether by reactive distillation. The method provides a reactive distillation tower with a top, a bottom, and rectification, reaction and stripping zones defined therein. The top of the reactive distillation tower is retained at 25° C. to 40° C. while the bottom of the reactive distillation tower is retained at 84.6° C. to 170° C. Each of the rectification, reaction and stripping zones includes several sieving trays. The reaction zone of the reactive distillation tower is filled with catalyst. The pressure in the reactive distillation tower is lower than 8.0 bars. Methanol is introduced into the reactive distillation tower so that the methanol travels from the reaction zone toward the bottom for contact with the catalyst to provide a top stream and a bottom stream. The top stream includes dimethyl ether. The bottom stream includes water and a remaining portion of the methanol. Finally, the dimethyl ether is collected in the top of the reactive distillation tower.

Abstract: The invention discloses an ethyl acetate layer of methanol extract of Aquilaria hulls for killing cancer cells and treating/preventing cancers and its uses. The extracts of Aquilaria hulls has an significant amount of cucurbitacins and these cucurbitacins are effective in killing cancer cells and treating/preventing cancers.