Abstract: A semiconductor quantum dot structure includes a core and a shell. The core includes a seed crystal made of a first compound M1C1, a core layer, and a barrier layer grown in such order. The seed crystal has first regions that are inactive with oxygen, and second regions that are easily reactive with oxygen. The core layer is made of the first compound M1C1, and has first and second areas. Each of the first areas is positioned on a corresponding one of the first regions. Each of the second areas is positioned on a corresponding one of the second regions. Each of the first areas has a thickness greater than that of each of the second areas. The barrier layer is made of a second compound selected from M1X1 and X2C1. The shell is grown on the barrier layer, and is made of a third compound M2C2.

Abstract: A slicing system is provided. The system includes: a holding assembly defining an interior space for receiving a workpiece; an inlet port and an outlet port communicating with the interior space; at least one cutting member configured to move relative to the holding assembly so as to slice the workpiece positioned in the interior space; an electrolyte source connected to the inlet port, wherein an electrolyte is supplied from the electrolyte source to the interior space through the inlet port and existing the interior space through the outlet port; and a power supply module configured to apply an electric current to the at least one cutting member and to the holding assembly.

Abstract: A semiconductor quantum dot structure includes a core and a shell. The core includes a seed crystal made of a first compound M1C1, a core layer, and a barrier layer grown in such order. The seed crystal has first regions that are inactive with oxygen, and second regions that are easily reactive with oxygen. The core layer is made of the first compound M1C1, and has first and second areas. Each of the first areas is positioned on a corresponding one of the first regions. Each of the second areas is positioned on a corresponding one of the second regions. Each of the first areas has a thickness greater than that of each of the second areas. The barrier layer is made of a second compound selected from M1X1 and X2C1. The shell is grown on the barrier layer, and is made of a third compound M2C2.

Abstract: A method for building a temperature prediction model is applicable to a heat cycle system, wherein the method is used to measure a temperature of the heat cycle system to generate a measured temperature data, and compute a response time of the heat cycle system, and the method includes aligning the measured temperature data and a setting value of the heat cycle system to generate a training data according to the response time; and building the temperature prediction model according to a statistic model and the training data.

Abstract: The present invention discloses a message transmission method. A first portable device transmits an identity information of a first wireless signal transmitter and a message content to a cloud server. The cloud server analyzes the message content to obtain a message tag of the message content, and obtain a wireless signal transmitter tag of the first wireless signal transmitter according to the identity information. The cloud server then obtains at least one target identity information representing at least one target wireless signal transmitter by using the message tag and the wireless signal transmitter tag, to obtain an association between the message content and the at least one target identity information. When receiving a second identity information, a second portable device compares the second identity information with the at least one target identity information and receives the message content from the cloud server.

Abstract: The present invention discloses a message transmission method. A first portable device transmits an identity information of a first wireless signal transmitter and a message content to a cloud server. The cloud server analyzes the message content to obtain a message tag of the message content, and obtain a wireless signal transmitter tag of the first wireless signal transmitter according to the identity information. The cloud server then obtains at least one target identity information representing at least one target wireless signal transmitter by using the message tag and the wireless signal transmitter tag, to obtain an association between the message content and the at least one target identity information. When receiving a second identity information, a second portable device compares the second identity information with the at least one target identity information and receives the message content from the cloud server.

Abstract: A message transmission method includes steps of receiving a identifier of a first wireless transmitter by a first portable device; transmitting associative message of the wireless transmitter by the first portable device; retrieving the identifier of the targeted wireless transmitter according to the identifier transmitted by the first wireless transmitter; linking the associative message of the wireless transmitter with the identifier of the targeted wireless transmitter; verifying the identifier of the targeted wireless transmitter with a identifier transmitted by a second wireless transmitter and received by a second portable device to confirm whether the identifier is the same or not; and if the identifier is the same, the second portable device retrieves wireless transmitter associative message which is associative to the identifier of the targeted wireless transmitter for later application.

Abstract: A message transmission method includes steps of receiving a identifier of a first wireless transmitter by a first portable device; transmitting associative message of the wireless transmitter by the first portable device; retrieving the identifier of the targeted wireless transmitter according to the identifier transmitted by the first wireless transmitter; linking the associative message of the wireless transmitter with the identifier of the targeted wireless transmitter; verifying the identifier of the targeted wireless transmitter with a identifier transmitted by a second wireless transmitter and received by a second portable device to confirm whether the identifier is the same or not; and if the identifier is the same, the second portable device retrieves wireless transmitter associative message which is associative to the identifier of the targeted wireless transmitter for later application.

Abstract: A driving method includes setting resistances of resistors in three driving circuits according to maximum tolerable currents corresponding to RGB LEDs respectively, using a PWM module to drive the RGB LEDs respectively in turn with a frequency higher than a visual persistence frequency, using a light sensor to detect light generated by the RGB LEDs and to output a detecting signal, and controlling the PWM module to adjust a luminous intensity of at least one LED in the RGB LEDs according to the detecting signal.

Abstract: A projection apparatus comprising a projection module, a driver module, a power circuitry and a casing is provided. The driver module is electrically connected to the projection module. The power circuitry is electrically connected to the driver module and has a first port for connecting to a universal serial bus (USB) port of a computer through a transmission cable. The casing encloses the projection module, the driver module and the power circuitry but exposes a portion of the first port. The projection apparatus is electrically connected to the USB port of the computer, and the power of the projection apparatus is provided through the computer so that an adapter is no longer required. Therefore, the projection apparatus is more convenient to users.

Abstract: A projection device includes a light source for providing a light beam, a light valve device installed on an optical path of the light beam, and a projection lens. The light valve device includes a light valve having an incident surface and a dust-off device. The light beam projects to the incident surface, and the incident surface reflects the light beam to form an image light beam. The dust-off device is installed on the light valve for sealing the incident surface for preventing dust from falling on the light valve. The dust-off device includes a vibrator for removing dust thereon by vibration for preventing dust from affecting the quality of projection images. The projection lens is used for projecting the image light beam out of the projection device.