Abstract: A method is used to make an aluminum alloy with excellent tensile strength, low density and excellent radiation. The method includes the steps of providing a base material, adding 0.06 wt % to 0.30 wt % of zirconium and 0.06 wt % to 0.30 wt % of vanadium to the base material, and melting the basic material with the zirconium and vanadium to provide an aluminum alloy. The base material includes 92.55 wt % to 97.38 wt % of aluminum, 0.9 wt % to 1.8 wt % of silicon, less than 0.5 wt % of iron, 0.6 wt % to 1.2 wt % of copper, 0.4 wt % to 1.1 wt % of manganese, 0.6 wt % to 1.4 wt % of magnesium, less than 0.40 wt % of chromium, less than 0.25 wt % of zinc and less than 0.20 wt % of titanium.

Abstract: Phase change material microcapsules are obtained using a PMMA prepolymer and an organic-solvent free synthesis process. A polymer monomer and an initiator are subject to pre-polymerization in a water bath to form Polymethyl methacrylate (PMMA) prepolymer which is then prepared to be a stabilizer aqueous solution. A phase change material is added to the stabilizer aqueous solution and liquefied in advance, and stirred to form an emulsion by a homogenizing mixer. A starting agent, a cross-linking agent and a Polymethyl methacrylate methyl ester prepolymer are added to the emulsion containing the phase-change material. The emulsion is further stirred by the homogenizing mixer for micro-emulsification which then aggregates in water bath.

Abstract: A method for enhancing flexible graphite includes the steps of providing two porous sheets of flexible graphite, impregnating the sheets of flexible graphite with adhesive, removing an excessive portion of the adhesive by drying the sheets of flexible graphite, providing a laminate by sandwiching a reinforcing element between the sheets of flexible graphite, and heating and pressing the laminate.

Abstract: A crucible is used for allowing a seed crystal to grow via the source of materials. The crucible includes a growth chamber, a holder, a reflecting device, and a plurality of gas guiding devices. The holder is located on the top of the crystal growth chamber for holding the seed. The reflecting device is located around the holder. The plurality of gas guiding devices is located on the bottom of the growth chamber, for containing the material source and guiding the gasification or vaporization of the material source.

Abstract: A method for making a conductive polymer composite for detecting a gas includes forming a porous conductive layer of a conductive powder on a substrate, applying a polymer solution containing a solvent and a gas responsive polymer material dissolved in the solvent to the porous conductive layer such that a portion of the polymer solution penetrates into the porous conductive layer and the remainder of the polymer solution forms a thin film covering a top of the porous conductive layer, the gas responsive polymer material being capable of adsorbing and desorbing the gas, and removing the solvent from the polymer solution so as to form a polymer matrix covering the porous conductive layer.

Abstract: Disclosed is a double-projection apparatus. The double-projection apparatus includes a frame, a carrier, two eccentric axles, a mirror-twisting axle, two scanning mirrors and two piezoelectric actuators. The carrier is provided in the frame, and includes an opening defined therein. Each of the eccentric axles includes an end connected to the frame and another end connected to the carrier. The mirror-twisting axle is provided in the opening. The scanning mirrors are provided in the opening and connected to two sides of the mirror-twisting axle. The piezoelectric actuators are connected to two sides of the frame.

Abstract: There is disclosed a method for making a nano-composite gas sensor. At first, there is provided a substrate. Then, electrodes are provided on the substrate in an array. Finally, a gas-sensing membrane is provided on the electrodes. The gas-sensing membrane includes a nano-conductive film and a peptide film.

Abstract: The present disclosure is a full-duplex wireless voice broadcasting apparatus. The apparatus is capable of channel-changing. Full-duplex (two-way) voice communication is achieved by using at least one receiving device and an emitting device. The receiving device has good mobility to be used as an emergent caller to the emitting device. The present disclosure has advantages in interference resistance, energy saving, short-distance emergent calling, and calling for help.

Abstract: A multi-stationed continuous electro-polishing system includes an electrolysis tank, a driving mechanism, electrode plates and a power supply. The electrolysis tank is filled with electrolyzing liquid. The driving mechanism is placed in the electrolysis tank for driving a metal strip into and out of the electrolysis tank. Each of the electrode plates is placed at an adjustable gap from the metal strip in the electrolysis tank. The power supply includes a positive electrode connected to the metal strip and a negative electrode connected to all of the electrode plates.

Abstract: An actuating apparatus includes a motion driving module rigidly coupled to a platform, a working stage driven by the motion driving module to move relative to the platform, a speckle image capturing module rigidly coupled to the working stage and capable of capturing a speckle image of a sub-region of a reference region of the platform, and a control module operable in a positioning mode, where the control module obtains a current position of the working stage in a coordinate system associated with the platform based on a comparison between the captured speckle image and reference speckle image information that is associated with and unique to the reference region, and controls the motion driving module to drive the working stage toward a target position in the coordinate system based on a difference between the current position and the target position.

Abstract: The invention provides a robotic arm for transporting a substrate in an ultrahigh vacuum including a carrier module and a drive module. The drive module includes a magnetic coupling, a first transmission module, a second transmission module, and a third transmission module. The magnetic coupling includes an inner shaft and an outer shaft. The first transmission module drives the first active unit of the magnetic coupling to turn a first passive unit of the inner shaft by magnetic force. The second transmission module drives the second active unit of the magnetic coupling to turn a second passive unit of the outer shaft by magnetic force. The third transmission module drives the magnetic coupling and the carrier module to perform vertical movement. The carrier module will achieve rotational motion or extending motion when the inner shaft and the outer shaft are driven by the first transmission module and the second transmission module of the drive module.

Abstract: A proportional electromagnet includes a cylindrical shell, first and second covers connected to two ends of the shell by riveting, a metal core inserted through an axial defined in the second cover and formed with a first section located in the shell and a second section located outside the shell, a coil unit provided between the shell and the metal core, a supporting element provided on the first section of the metal core, a bushing provided on the second section of the metal core, a copper ring provided on the first section of the metal core to improve magnetic thrust of the proportional electromagnet, a stop provided on the first section of the metal core, and a magnetic shield provided between the first section of the metal core and the coil unit to direct magnetic flux toward the supporting element and the metal core to stably drive the metal core.

Abstract: A multi-secured RFID (Radio Frequency Identification) electronic seal includes a bolt, a bolt pedestal and a RFID system. The bolt has a male bolt portion with an electrical connecting point. The bolt pedestal has a female pedestal portion with several nodes to electrically connect with the electrical connecting point to provide plural selections of connecting and disconnecting. The RFID system includes a RFID chip and a transmission conductor embedded in the bolt, and an antenna installed on the bolt pedestal. When the bolt and the bolt pedestal is securely locked together, whether the RFID chip is electrically connects to the antenna depends on if the electrical connecting point connects a preset node, so that a RFID signal may be selectively transmitted by the RFID chip through the antenna.

Abstract: An apparatus for simulating a target at a variable distance and speed includes a transceiver, isolators, a signal delayer, a wave mixer and a signal attenuator. The isolators receive a signal from the transceiver. The signal delayer receives the signal from the isolators and accordingly simulates a delay value at a distance. The wave mixer is connected to the signal delayer. A Doppler shift is introduced into the apparatus through the wave mixer. The signal attenuator is connected to the isolators and the wave mixer for producing an adjustable attenuated signal corresponding to a variable distance.

Abstract: The present invention provides a device for shoulder-launching operation. Stability and convenience on operation are enhanced. Furthermore, production is improved and maintenance difficulty is reduced.

Abstract: Disclosed is an electronic seal for sealing a door. The door is equipped with a latch. The electronic seal includes a plug and a socket. The plug can be inserted in the socket through the latch. Thus, the door is sealed by the electronic seal. The door cannot be opened without breaking the electric seal. The electronic seal records any event of breakage.

Abstract: Disclosed is a double-projection apparatus. The double-projection apparatus includes a frame, a carrier, two eccentric axles, a mirror-twisting axle, two scanning mirrors and two piezoelectric actuators. The carrier is provided in the frame, and includes an opening defined therein. Each of the eccentric axles includes an end connected to the frame and another end connected to the carrier. The mirror-twisting axle is provided in the opening. The scanning mirrors are provided in the opening and connected to two sides of the mirror-twisting axle. The piezoelectric actuators are connected to two sides of the frame.

Abstract: A signal generation and transmission system includes a modulator and an RF transceiver. The RF transceiver includes a voltage-controlled oscillator, a power divider, a low-pass filter, a low-noise amplifier and a mixer. The voltage-controlled oscillator receives a signal from the modulator and produces a frequency modulated continuous wave signal. The power divider receives the frequency modulated continuous wave signal from the voltage-controlled oscillator. The low-pass filter receives the frequency modulated continuous wave signal from the power divider. The low-noise amplifier receives, amplifies and transfers a target echo signal. The mixer combines the frequency modulated continuous wave signal from the power divider with the echo signal of target from the low-noise amplifier so that the two signals are added up or subtracted from each other in a frequency band.

Abstract: A device for safe firing is provided. The device is used in a tube of a rocket, like a shoulder-launched anti-armor rocket. The present invention has simple structure and small size. A few safety designs are used in the present invention to improve safety of the rocket tube during transportation. Those designs also prevent the rocket from misfire owing to lack of training.

Abstract: Disclosed is an apparatus for measuring the state of charge of a battery pack via measuring an open circuit voltage. The apparatus includes a voltage measurement unit electrically connected to the battery pack, a current sensor electrically connected to the battery pack, a current measurement unit electrically connected to the current sensor, and a processor electrically connected to the voltage measurement unit and the current measurement unit. The processor measures the voltage and current of the battery pack via the voltage measurement unit and the current measurement unit.