Abstract:
A shoe apparatus includes a shoe, a power supply and a wireless transmitter. The shoe is to be worn by a user. The power supply is provided in the shoe for generation and storage of electricity. The power supply includes a battery, a first generator unit electrically connected to the battery and a second generator unit electrically connected to the battery. The wireless transmitter is provided in the shoe and electrically connected to the power supply for wireless communication of data with a remote device.
Abstract:
Disclosed is a method for making an aluminum nitride substrate. At first, aluminum nitride is mixed with a carbonized material. The mixture is made into mixture powder in a granulation process. The mixture powder is sintered at an appropriate temperature so that the carbonized material reacts with oxygen to produce a gaseous carbon compound. The gaseous carbon compound is released, and hence an aluminum nitride substrate is made. Before the making of the aluminum nitride substrate is made, the aluminum nitride powder is mixed with the carbonized material. For the stable heat dispersion of the carbonized material, the heating is even during the sintering. The purity of the aluminum nitride substrate is high, the quality of the aluminum nitride substrate is good, and the size of the aluminum nitride substrate is large. Hence, the yield of the making of the aluminum nitride substrate is high.
Abstract:
A preparing method for coating polymethylmethacrylate (PMMA) particles with silicon dioxide is disclosed and includes the following steps of: preparing a silicon dioxide solution by mixing a silicon dioxide powder and a solvent; adding a dispersant-and-interface-modifier agent into the silicon dioxide solution; performing a wet grinding to the silicon dioxide solution with the dispersant-and-interface-modifier agent so as to obtain a plurality of nano-sized silicon dioxide particles with negative charge; performing an interface modification to a plurality of PMMA particles to be charged with positive charge; adding the PMMA particles into the silicon dioxide solution; making the PMMA particles adsorb the nano-sized silicon dioxide particles; and performing a solid-liquid separation process to the silicon dioxide solution so as to obtain the chemical composite particles.
Abstract:
Disclosed is a method for making a highly thermally conductive composite. At first, paraffin wax is subjected to apparent modification. Expandable graphite is oxidized and organically modified. The modified paraffin wax is melted and mixed with the modified expandable graphite so that the modified expandable graphite is evenly distributed in the modified paraffin wax. With the expandable graphite, which exhibits an excellent heat transfer coefficient, the thermal conductivity of the paraffin wax is improved. The melting and solidifying rates of the paraffin wax are improved.
Abstract:
The invention discloses a control method of optical cutting. A laser processing module is used to generate a cutting heat source and an auxiliary heat source. The control method of optical cutting includes the steps of determining a cutting path on the work piece first; then calculating a thermal stress distribution along the cutting path according to a heating condition; next determining an irradiation condition for the auxiliary cutting heat source according to the thermal stress distribution induced by the cutting heat source; and irradiating the work piece along the cutting path with the cutting heat source and simultaneously irradiating the work piece with the auxiliary cutting heat source. The cutting of the work piece is therefore finished.
Abstract:
A constant-frequency asynchronous modulation apparatus includes a current feedback control unit connected to a constant-frequency asynchronous modulation unit. The current feedback control unit includes a reference signal generator and an error amplifier. The reference signal generator provides an error. The error amplifier is connected to a reference signal generator, and provides an error-compensating signal based on the error, and adds up a reference signal and the error-compensating signal to provide a compensation reference signal. The constant-frequency asynchronous modulation unit connected to the current feedback control unit, and includes a hysteresis comparator, an integrator connected to the hysteresis comparator, and a hysteresis boundary generator connected to both of the hysteresis comparator and the integrator. The hysteresis boundary generator provides a power source voltage, a time constant for the integrator, a switching frequency and a real-time reference signal so that a hysteresis boundary changes as the reference signal changes.
Abstract:
Disclosed is a method for lithography etching a glass substrate. The method includes the steps of providing a glass substrate, providing miniature balls on the glass substrate so that the miniature balls become an etching-resistant layer, etching the glass substrate covered by the miniature balls to make a miniature pattern on the glass substrate, and removing the miniature balls from the substrate.
Abstract:
Methods for producing dendrons of different generations with hydrophobic functional end-groups, and for producing polyurethanes with the side-chain dendrons are disclosed step-by-step. The dendron with hydrophobic functional end-groups in the polyurethane systems, and the honeycomb-like structure thin films are obtained by a breath-figure process. The structures of dendrons and dendritic side-chain polyurethanes are respectively expressed in the following and the end-groups (R) of the dendron are long alkyl chains or perfluoroalkyl derivatives.
Abstract:
The present invention relates to a physical audit system with radio frequency identification (RFID) and a method thereof, which perform physical audit by means of RFID. First, a plurality of electronic tags is set in a physical system and all the physical units included in the physical system, respectively. The plurality of electronic tags records physical configuration data related to the physical system and the physical units, respectively. A radio-frequency writer unit writes the physical configuration data of a newer version according to the physical system and the physical units. Then, a radio-frequency reader unit reads the physical configuration data of the plurality of electronic tags, and transmits the physical configuration data to an integrated data processing device for analyzing and comparing the physical configuration data. It is judged if the physical configuration is identical to comparison data in the integrated data processing device.
Abstract:
Disclosed is a vehicle-used power supply system. The vehicle power supply system comprises a storage unit, a bidirectional dc/dc convertor, a dc bus, a controller and a driving module. The bidirectional dc/dc convertor is configured to boost the power stored in the storage unit to a dc bus power. The controller is configured to control the bidirectional dc/dc convertor to operate in a boost mode for driving the motor or in a buck mode for charging the storage unit. The driving module is configured to receive the dc bus power and drive the motor.