Abstract: An interactive method for recording and playing data is implemented using an interactive system including a recording and playing unit, a processing unit, an RFID reader, and a memory. The method includes: a) configuring the processing unit to receive a record/stop request signal; b) configuring the processing unit to determine whether to activate the RFID reader; c) configuring the processing unit to activate the RFID reader for RFID tag reading when the processing unit determines to activate the RFID reader in step b); d) configuring the RFID reader to read a first RFID tag and to send a first identification code to the processing unit; e) configuring the processing unit to control the recording and playing unit to record data so as to generate recorded data; and f) configuring the processing unit to store the recorded data in the memory using the first identification code as an index.

Abstract: A biosynthesis method of norephedrine with specific optical activities is revealed to convert and generate optical isomers with specific optical activities by biocatalysis. A two-step biotransformation reaction is carried by a whole-cell biocatalyst for converting reaction substrates, benzaldehyde and pyruvate, to L-phenylacetylcarbinol (L-PAC) in the first step and the yield of the L-PAC is 99%, and then an amino donor (L-alanine) is added and the transamination of the L-PAC is catalyzed by a transaminase with optical specificity for biosynthesizing the norephedrine with high optical purity. The pyruvate is produced from the amino donor, L-alanine, by the transamination in the reaction system, so that the pyruvate is regenerated in the reaction system without being added again.

Abstract: A power converting device converts a DC voltage input from an external power source into an AC voltage output across an output capacitor of an output circuit, and includes a coupling circuit having series first and second windings. A rectifying diode has a grounded anode coupled to an anode of a clamp diode, and a cathode coupled to the second winding. A cathode of the clamp diode is coupled to a clamp switch and the first winding. A full-bridge circuit includes a first series connection of first and second switches, and a second series connection of third and fourth switches. The first and second series connections are coupled in parallel between the first winding and ground. The output capacitor is coupled between a first common node between the first and second switches, and a second common node between the third and fourth switches.

Abstract: An interactive method for recording and playing data is implemented using an interactive system including a recording and playing unit, a processing unit, an RFID reader, and a memory. The method includes: a) configuring the processing unit to receive a record/stop request signal; b) configuring the processing unit to determine whether to activate the RFID reader; c) configuring the processing unit to activate the RFID reader for RFID tag reading when the processing unit determines to activate the RFID reader in step b); d) configuring the RFID reader to read a first RFID tag and to send a first identification code to the processing unit; e) configuring the processing unit to control the recording and playing unit to record data so as to generate recorded data; and f) configuring the processing unit to store the recorded data in the memory using the first identification code as an index.

Abstract: A power converting device is adapted for converting a DC voltage input from an external power source into an AC voltage output. The power converting device includes: a transformer having first and second windings each having opposite first and second ends; a clamp unit coupled to the external power source, and including a first switch coupled between a reference node and the second end of the first winding, and a series connection of a clamp capacitor and a second switch coupled across the first winding; and an inverting unit coupled to the first end of the second winding, and operable so as to output the AC voltage output based on an induced voltage across the second winding.

Abstract: A medical device and a method of increasing an anti-oxidation capability of an animal cell are provided. The method of increasing the anti-oxidation capability of the animal cell comprises steps of providing the animal cell, and disposing a far-infrared (FIR) emitter in a certain distance from the animal cell. Particularly, the FIR emitter includes a mineral oxide.

Abstract: A boost device boosts an input voltage to an output voltage across an output capacitor, and includes first and second output diodes coupled to the output capacitor, and a transformer coupled to first and second switches, first and second switching circuits, and to the first and second output diodes, and receiving the input voltage. The first and second switches are operated alternately in an ON-state, and have overlapping duty cycles. The first and second switching circuits are operable to suppress conduction losses for the first and second switches. The transformer has a bi-directional magnetic circuit. Electric energy is transformed through induced currents of the transformer, and a small amount of energy attributed to an exciting current of the transformer is used for voltage boosting, thereby attaining a relatively high output power.

Abstract: A bidirectional power converting device coupled between first and second power storage units includes: a coupling circuit including a first winding coupled to the first power storage unit, and a second winding coupled in series to the first winding; first and second switches coupled to the first winding; a capacitor coupled between the first and second switches; a third switch coupled between the second winding and the capacitor; and a fourth switch between the second winding and the second power storage unit. The first, second, third and fourth switches are operable so that an input voltage supplied by one of the first and second power storage units is converted into an output voltage that is to be supplied to the other one of the first and second power storage units.

Abstract: A boost device boosts an input voltage to an output voltage across an output capacitor, and includes an output diode coupled to the output capacitor, and a transformer coupled to a first switch, a clamp circuit and a boost circuit. The clamp circuit is coupled across a first winding of the transformer, and includes a clamp capacitor coupled in series to a second switch. The output capacitor is capable of being charged through the output diode with an induced voltage across a second winding of the transformer. The boost circuit is capable of being charged with the induced voltage across the second winding, and of charging the output capacitor so as to boost the output voltage across the output capacitor.

Abstract: A power converting device is adapted for converting a DC voltage input from an external power source into an AC voltage output. The power converting device includes: a transformer having first and second windings each having opposite first and second ends; a clamp unit coupled to the external power source, and including a first switch coupled between a reference node and the second end of the first winding, and a series connection of a clamp capacitor and a second switch coupled across the first winding; and an inverting unit coupled to the first end of the second winding, and operable so as to output the AC voltage output based on an induced voltage across the second winding.

Abstract: A composition as adsorbent and catalyst is manufactured by adding activated carbon into a aqueous solution comprising a plurality of metal salts, adjusting the solution to a predetermined pH value according to the types of the plurality of metal salts, drying the solution while slowly stirring at the same time, and calcining a product from the dried aqueous solution so as to obtain the composite as adsorbent and catalyst. The said composite can be used in a wastewater treatment method. The wastewater treating method comprises the steps of adding the said composite to wastewater comprising a contaminant, such that the contaminant is adsorbed onto the composite; and adding an oxidant to the wastewater. The oxidant is catalyzed by the composite to generate free radicals, which oxidizes the contaminant adsorbed onto the composite to thereby remove the contaminant from the wastewater.

Abstract: A power converting device converts a DC voltage input from an external power source into an AC voltage output across an output capacitor of an output circuit, and includes a coupling circuit having series first and second windings. A rectifying diode has a grounded anode coupled to an anode of a clamp diode, and a cathode coupled to the second winding. A cathode of the clamp diode is coupled to a clamp switch and the first winding. A full-bridge circuit includes a first series connection of first and second switches, and a second series connection of third and fourth switches. The first and second series connections are coupled in parallel between the first winding and ground. The output capacitor is coupled between a first common node between the first and second switches, and a second common node between the third and fourth switches.

Abstract: A boost device boosts an input voltage to an output voltage across an output capacitor, and includes an output diode coupled to the output capacitor, and a transformer coupled to a first switch, a clamp circuit and a boost circuit. The clamp circuit is coupled across a first winding of the transformer, and includes a clamp capacitor coupled in series to a second switch. The output capacitor is capable of being charged through the output diode with an induced voltage across a second winding of the transformer. The boost circuit is capable of being charged with the induced voltage across the second winding, and of charging the output capacitor so as to boost the output voltage across the output capacitor.

Abstract: A bidirectional power converting device coupled between first and second power storage units includes: a coupling circuit including a first winding coupled to the first power storage unit, and a second winding coupled in series to the first winding; first and second switches coupled to the first winding; a capacitor coupled between the first and second switches; a third switch coupled between the second winding and the capacitor; and a fourth switch between the second winding and the second power storage unit. The first, second, third and fourth switches are operable so that an input voltage supplied by one of the first and second power storage units is converted into an output voltage that is to be supplied to the other one of the first and second power storage units.

Abstract: A boost device boosts an input voltage to an output voltage across an output capacitor, and includes first and second output diodes coupled to the output capacitor, and a transformer coupled to first and second switches, first and second switching circuits, and to the first and second output diodes, and receiving the input voltage. The first and second switches are operated alternately in an ON-state, and have overlapping duty cycles. The first and second switching circuits are operable to suppress conduction losses for the first and second switches. The transformer has a bi-directional magnetic circuit. Electric energy is transformed through induced currents of the transformer, and a small amount of energy attributed to an exciting current of the transformer is used for voltage boosting, thereby attaining a relatively high output power.

Abstract: The present invention provides a mobile ECG device by using accelerometer to improve real-time automatic analysis of heart rate variability, comprising: a data storage module; a microprocessor (MCU) module in which data are stored and accessed in the data storage module; an analog-to-digital converter module in which the data are transmitted to the microprocessor (MCU) module; an accelerometer peripheral hardware module in which the data are transmitted to the analog-to-digital converter module; and an electrocardiogram peripheral hardware module in which the data are transmitted to the analog-to-digital converter module.