Abstract: A method for reducing myopia progression. In particular, the method includes administering to a subject a compound represented by the following formula or a composition comprising an effective amount of the same: or a pharmaceutically accept salt thereof, in which the compound can target and inhibit catechol-O-methyltransferase, up-regulate retinal dopamine expression and change the choroidal thickness of a uvea of the subject, where an increase in choroidal thickness indicates a reduction in myopia progression.

Abstract: Disclosed are a method and system for testing high-voltage ride-through of a photovoltaic inverter. The method for testing high-voltage ride-through of a photovoltaic inverter includes: connecting a board-to-board (BTB) circuit to a passive circuit in series, and connecting circuit breakers to the passive circuit to form an inverter test device; connecting one end of the inverter test device to an alternating current power supply, and connecting the other end of the inverter test device to a tested apparatus; and performing testing by adjusting a parameter of the passive circuit and a switching mode of the circuit breakers by means of the BTB circuit. According to the present disclosure, an influence of the device for testing high-voltage ride-through of a photovoltaic inverter on power supply voltage is eliminated, a requirement on supply of reactive power of the power supply is eliminated, applicability is better, and cost is lower.

Abstract: An earphone comprising a transducer vibrating diaphragm structure is described herein. The transducer vibrating diaphragm structure comprises a diaphragm including a first surface and a second surface opposite the first surface, a first frame and a second frame disposed at two sides of the diaphragm and coupled to a periphery of the diaphragm, a first magnetic element and a second magnetic element disposed to correspond to the first surface and the second surface, respectively. A total area of the diaphragm is less than or equal to 120 square millimeters and a sensitivity of the diaphragm is greater than 105 dB.

Abstract: The functional compound sweetener disclosed herein comprises a composition comprising: a high sweetness sweetener and a sweetener buffer in a weight ratio of 1:4 to 1:80,000, and 0.07 g/L to 0.15 g/L of an acid buffer for maintaining pH at 2.5 to 5.5 when the composition is dissolved in water. The functional compound sweetener imparts flavor temporal profile characteristics close to sucrose, and removes bitter taste, astringency and medicinal taste of the high sweetness sweetener, and adjusts time delay of sweet tastes to obtain taste closer to sucrose, such that food supplemented with the functional compound sweetener reduces caloric intake and risk of diabetes while satisfying a sweetness taste.

Abstract: An isomagnetic speaker comprising a diaphragm and an interference-free magnet structure is described herein. The interference-free magnet structure comprises a magnet array disposed to correspond with a predetermined region of the diaphragm and comprising a plurality of permanent magnets disposed at equal intervals along at least one direction. A plurality of bottoms of the plurality of permanent magnets are arranged on a same plane and oriented toward the diaphragm. A magnetic field direction of each permanent magnet is perpendicular to a corresponding bottom. A maximum size of a length of each permanent magnet along a direction parallel to the diaphragm is smaller than or equal to c/2?fmin, wherein c is a sound wave speed, and fmin is a minimum output audio frequency of the isomagnetic speaker.

Abstract: An isomagnetic speaker comprising a diaphragm and an interference-free magnet structure is described herein. The interference-free magnet structure comprises a magnet array disposed to correspond with a predetermined region of the diaphragm and comprising a plurality of permanent magnets disposed at equal intervals along at least one direction. A plurality of bottoms of the plurality of permanent magnets are arranged on a same plane and oriented toward the diaphragm. A magnetic field direction of each permanent magnet is perpendicular to a corresponding bottom. A maximum size of a length of each permanent magnet along a direction parallel to the diaphragm is smaller than or equal to c/2?fmin, wherein c is a sound wave speed, and fmin is a minimum output audio frequency of the isomagnetic speaker.

Abstract: An earphone comprising a transducer vibrating diaphragm structure is described herein. The transducer vibrating diaphragm structure comprises a diaphragm including a first surface and a second surface opposite the first surface, a first frame and a second frame disposed at two sides of the diaphragm and coupled to a periphery of the diaphragm, a first magnetic element and a second magnetic element disposed to correspond to the first surface and the second surface, respectively. A total area of the diaphragm is less than or equal to 120 square millimeters and a sensitivity of the diaphragm is greater than 105 dB.

Abstract: An improved low-power sense amplifier for use in a flash memory system is disclosed. The reference bit line and selected bit line are pre-charged during a limited period and with limited power consumed. The pre-charge circuit can be trimmed during a configuration process to further optimize power consumption during the pre-charge operation.

Abstract: An improved low-power sense amplifier for use in a flash memory system is disclosed. The reference bit line and selected bit line are pre-charged during a limited period and with limited power consumed. The pre-charge circuit can be trimmed during a configuration process to further optimize power consumption during the pre-charge operation.

Abstract: A system and method of selecting on-line advertisements in a real-time bidding exchange is disclosed. A bid request associated with a first data set is received. Advertisements are filtered based on each advertisement's campaign constraints as applied to the first data set. A heuristic score for each filtered advertisement is determined based on a small subset of features from the first data set or randomly generated. A bid value is then determined based on a substantial number of the features from the first data set only for each of a top fraction of filtered the advertisements that have the highest heuristic scores. A final bid value and its associated advertisement is selected and sent to a sender of the bid request for presenting in an on-line advertisement space as an impression.