Abstract: A registration system for robot-oriented augmented reality teaching system, comprising: a physical robot unit, a registration unit, a virtual robot generation unit and a computer; the physical robot unit comprising a physical robot, a physical robot controller and a robot point-to-point intermittent movement control program; the physical robot provided thereon with a physical robot base coordinate system; the physical robot controller connected with the physical robot and the computer respectively; the robot point-to-point intermittent movement control program installed in the computer; the registration unit comprising a registration marker, a camera and a conversion calculation unit; the registration marker arranged on the physical robot body; the camera fixed in a physical environment except the physical robot; the camera connected with the computer, and the conversion calculation unit arranged in the computer; the virtual robot generation unit arranged in the computer and used for generating a virtual robo

Abstract: Disclosed are C16 amide derivatives of C2?-epi-amphotericin B (C2?epiAmB) and amphotericin B (AmB), characterized by improved clinical efficacy with reduced toxicity compared to AmB. Also disclosed are pharmaceutical compositions comprising either type of the C16 amide derivatives, and therapeutic methods of using either type of the C16 amide derivatives; and methods of making the C16 amide derivatives of C2?-epi-amphotericin B.

Abstract: Disclosed is a method for synthesizing a novel chiral ligand, a metal chelate, a variety of non-natural amino acids, Maraviroc and a key intermediate thereof. In the invention, (R)-2-methyl proline is selected and used as a starting raw material, (S)-?3-amino acid is obtained by asymmetric resolution induced by using a nickel chelate, and Maraviroc is synthesized by using (S)-3-amino-3-phenylpropionic acid as a key intermediate with a high yield and the ee value reaching 98.2% or more. The method of the present invention has widely available materials, mild synthetic process conditions, is easy to control, and produces a product of a high optical purity.

Abstract: Disclosed is a method for synthesizing a novel chiral ligand, a metal chelate, a variety of non-natural amino acids, Maraviroc and a key intermediate thereof. In the invention, (R)-2-methyl proline is selected and used as a starting raw material, (S)-?3-amino acid is obtained by asymmetric resolution induced by using a nickel chelate, and Maraviroc is synthesized by using (S)-3-amino-3-phenylpropionic acid as a key intermediate with a high yield and the ee value reaching 98.2% or more. The method of the present invention has widely available materials, mild synthetic process conditions, is easy to control, and produces a product of a high optical purity.

Abstract: An interface mounting device includes a circuit board with a connector and a bracket configured to receive an interface device and including a hook. The circuit board defines an installation opening and a cutout extending from an edge of the installation opening. The bracket is received in the installation opening. The hook is engaged with the circuit board through the cutout. The bracket defines a guiding slot aligned with the connector. The guiding slot is configured for a coupling portion of the interface device to pass through and coupling to the connector. A printed circuit board assembly with the interface mounting device is also provided.

Abstract: Router includes an enclosure, a circuit board located in the enclosure, a first expansion module, and a second expansion module. The first expansion module and the second expansion module are selectively coupled to the circuit board. When the first expansion module is coupled to the circuit board, the router is used to build a local area network or a wireless network. When the second expansion module is coupled to the circuit board, the router is used to connect a plurality of electronic devices.

Abstract: A power supply system includes a power board and a transmission cable. The power board provides a first voltage and a second voltage. The transmission cable transmits the first voltage to a first electronic element to activate the first electronic element to work, and transmit the second voltage to a second electronic element which has same function to the first electronic element to activate the second electronic element to work.

Abstract: An interface mounting device includes a circuit board with a connector and a bracket configured to receive an interface device and including a hook. The circuit board defines an installation opening and a cutout extending from an edge of the installation opening. The bracket is received in the installation opening. The hook is engaged with the circuit board through the cutout. The bracket defines a guiding slot aligned with the connector. The guiding slot is configured for a coupling portion of the interface device to pass through and coupling to the connector. A printed circuit board assembly with the interface mounting device is also provided.

Abstract: An electronic whiteboard able to use any shell and any touchscreen includes a shell and a touch-screen. The touch-screen includes a cable. The shell includes a side plate and a bottom plate. The bottom plate is substantially perpendicular to the side plate. The side plate defines a receiving groove. The touch-screen is engaged with the bottom plate. The cable is received in the receiving groove. A shell of an electronic device is also provided.

Abstract: Router includes an enclosure, a circuit board located in the enclosure, a first expansion module, and a second expansion module. The first expansion module and the second expansion module are selectively coupled to the circuit board. When the first expansion module is coupled to the circuit board, the router is used to build a local area network or a wireless network. When the second expansion module is coupled to the circuit board, the router is used to connect a plurality of electronic devices.

Abstract: A vending machine includes a rack, a number of storage containers, a controlling chip, and a number of locking modules. The number of storage containers is accommodated in the rack. Each of the locking modules is secured to one corresponding storage container and electrically connected to the controlling chip. In an initial state of the locking modules, the storage containers are secured to the rack. The controlling chip is configured to unlock one of the locking modules to allow the corresponding storage container to be pulled out of the rack.

Abstract: An enclosure includes a chassis and a bracket. The chassis comprises a rear panel with a latch hole. The bracket comprises a first sidewall. A resilient piece and a sustaining piece are located on the first sidewall. The resilient piece is elastically deformable as the bracket is rotated relative to the chassis, from a first position to a second position. When the bracket is in the first position, the resilient piece is engaged in the latch hole, and the sustaining piece is located between the first sidewall and the rear panel; when the bracket is in the second position, the resilient piece is disengaged from the latch hole, and the sustaining piece is engaged with the rear panel.

Abstract: A connector includes a body and a socket extending from the body. A blocking wall is located on the body. The socket includes a top wall, a resilient piece located on the top wall. The blocking wall is surrounded the resilient piece for preventing the resilient piece from destroying.

Abstract: An enclosure includes a chassis and a bracket. The chassis includes a bottom panel, a rear panel and a side panel. The rear panel defines a latch hole. Two clamping pieces are located on the side panel. The bracket is engaged between the clamping pieces and includes a first sidewall and a second sidewall. A second hook and a resilient piece are located on the first sidewall. A first hook is located on the second sidewall. The first hook and the second hook are separately engaged with the two clamping pieces for preventing the bracket from moving along a first direction near to the bottom panel. The resilient piece is engaged in the latch hole to preventing the bracket from moving a second direction opposite to the first direction, and the resilient piece is elastically deformable to disengage from the latch hole.

Abstract: An electronic device includes a chassis, a circuit board and the resilient piece. The chassis includes a bottom panel. The circuit board has a ground plane. The resilient piece includes a soldering portion and a resisting portion. The soldering portion is in electrical connection with the ground plane, and the resisting piece abuts the bottom panel to prevent the electromagnetic interference (EMI) from the circuit board.

Abstract: An enclosure includes a chassis and a bracket. The chassis includes a bottom panel, a rear panel and a side panel. The rear panel defines a latch hole. Two clamping pieces are located on the side panel. The bracket is engaged between the clamping pieces and includes a first sidewall and a second sidewall. A second hook and a resilient piece are located on the first sidewall. A first hook is located on the second sidewall. The first hook and the second hook are separately engaged with the two clamping pieces for preventing the bracket from moving along a first direction near to the bottom panel. The resilient piece is engaged in the latch hole to preventing the bracket from moving a second direction opposite to the first direction, and the resilient piece is elastically deformable to disengage from the lath hole.

Abstract: An enclosure includes a chassis and a bracket. The chassis comprises a rear panel with a latch hole. The bracket comprises a first sidewall. A resilient piece and a sustaining piece are located on the first sidewall. The resilient piece is elastically deformable as the bracket is rotated relative to the chassis, from a first position to a second position. When the bracket is in the first position, the resilient piece is engaged in the latch hole, and the sustaining piece is located between the first sidewall and the rear panel; when the bracket is in the second position, the resilient piece is disengaged from the latch hole, and the sustaining piece is engaged with the rear panel.

Abstract: A connector includes a body and a socket extending from the body. A blocking wall is located on the body. The socket includes a top wall, a resilient piece located on the top wall. The blocking wall is surrounded the resilient piece for preventing the resilient piece from destroying.

Abstract: A solar control window film having low emissivity minimizes the transfer of thermal energy through window glass by thermal radiation between a temperature controlled interior environment and a uncontrolled exterior environment. The film is comprised of a transparent flexible polymeric substrate bearing various transparent thin film layers of coating materials, including a highly reflective metal. The film is devoid of laminations and laminating adhesives and provides high visual light transmission of up to 50% or more while maintaining a very low emissivity of 0.30 or less. The film is especially suited for retrofitting existing plain glass windows to convert the same to solar control windows.

Abstract: A D/A converter with a Gamma correction circuit according to the invention is designed for C-DAC which takes up much less space than the conventional R-DAC and 2-divided C-DAC. Therefore, this D/A converter has advantages of simple design and low cost. Furthermore, users can freely define the shape of a Gamma correction conversion curve to thereby widen application areas by adjusting terminal voltages.