Abstract: A method for predicting air quality with the aid of machine learning models includes: (A) providing air pollution data to perform an eXtreme Gradient Boosting (XGBoost) regression algorithm for obtaining a XGBoost prediction value; (B) providing the air pollution data to perform a Long Short-Term Memory (LSTM) algorithm for obtaining an LSTM prediction value; (C) combining the air pollution data, the XGBoost prediction value and the LSTM prediction value to generate air pollution combination data; (D) performing an XGBoost classification algorithm to obtain a suggestion for whether to issue an air pollution alert; and (E) performing the XGBoost regression algorithm on the air pollution combination data to obtain an air pollution prediction value. Two layers of machine learning models are built, and a situation where prediction results are too conservative when a single model does not have enough data can be improved.

Abstract: A logarithmic power detector includes a power distributor, a first detection circuit, a second detection circuit and an output circuit. The power distributor is used to generate a first power signal and a second power signal according to an input signal. The first detection circuit is used to attenuate the first power signal to generate a first rectified signal, filter the first rectified signal to generate a first low-pass signal, and amplify the first low-pass signal to generate a first amplification current. The second detection circuit is used to attenuate the second power signal to generate a second rectified signal, filter the second rectified signal to generate a second low-pass signal, and amplify the second low-pass signal to generate a second amplification current. The output circuit is used to receive the first amplification current and the second amplification current to generate a converted voltage related to the input signal.

Abstract: A spliced unit including a substrate, a circuit unit, and light-emitting units is provided. The substrate includes a first part having a first bottom surface and a first top surface opposite to the first bottom surface, and a second part having a second bottom surface and a second top surface opposite to the second bottom surface. There is a height difference between the first bottom surface of the first part and the second bottom surface of the second part. The circuit unit is disposed on the first top surface. The light-emitting units are disposed in the second part of the substrate. In a direction of a normal line perpendicular to the substrate, the first part of the substrate and the second part of the substrate are not overlapped, and the circuit unit and the light-emitting units are not overlapped. A spliced panel including the spliced units is also provided.

Abstract: A logarithmic power detector includes a power distributor, a first detection circuit, a second detection circuit and an output circuit. The power distributor is used to generate a first power signal and a second power signal according to an input signal. The first detection circuit is used to attenuate the first power signal to generate a first rectified signal, filter the first rectified signal to generate a first low-pass signal, and amplify the first low-pass signal to generate a first amplification current. The second detection circuit is used to attenuate the second power signal to generate a second rectified signal, filter the second rectified signal to generate a second low-pass signal, and amplify the second low-pass signal to generate a second amplification current. The output circuit is used to receive the first amplification current and the second amplification current to generate a converted voltage related to the input signal.

Abstract: A spliced unit including a substrate, a circuit unit, and light-emitting units is provided. The substrate includes a first part having a first bottom surface and a first top surface opposite to the first bottom surface, and a second part having a second bottom surface and a second top surface opposite to the second bottom surface. There is a height difference between the first bottom surface of the first part and the second bottom surface of the second part. The circuit unit is disposed on the first top surface. The light-emitting units are disposed in the second part of the substrate. In a direction of a normal line perpendicular to the substrate, the first part of the substrate and the second part of the substrate are not overlapped, and the circuit unit and the light-emitting units are not overlapped. A spliced panel including the spliced units is also provided.

Abstract: A method for predicting air quality with the aid of machine learning models includes: (A) providing air pollution data to perform an eXtreme Gradient Boosting (XGBoost) regression algorithm for obtaining a XGBoost prediction value; (B) providing the air pollution data to perform a Long Short-Term Memory (LSTM) algorithm for obtaining an LSTM prediction value; (C) combining the air pollution data, the XGBoost prediction value and the LSTM prediction value to generate air pollution combination data; (D) performing an XGBoost classification algorithm to obtain a suggestion for whether to issue an air pollution alert; and (E) performing the XGBoost regression algorithm on the air pollution combination data to obtain an air pollution prediction value. Two layers of machine learning models are built, and a situation where prediction results are too conservative when a single model does not have enough data can be improved.

Abstract: A display panel includes waveguides, wires and a pixel array. The pixel array includes a plurality of pixel units. The pixel units are arranged in a plurality of columns and a plurality of rows. Each pixel unit includes a pixel electrode, a light filtering unit, and a photo transistor. The light filtering unit is coupled to one of the waveguides. The photo transistor is electrically connected to the pixel electrode and one of the wires, and is coupled to the light filtering unit. The waveguide transmits a light control signal. Each wire transmits an electric control signal. The light filtering unit is configured to receive a sub control signal from the waveguides to which the light filtering unit is coupled and filter out a specific optical signal according to the received sub control signal as an input signal of the photo transistor.

Abstract: A display panel includes waveguides, wires and a pixel array. The pixel array includes a plurality of pixel units. The pixel units are arranged in a plurality of columns and a plurality of rows. Each pixel unit includes a pixel electrode, a light filtering unit, and a photo transistor. The light filtering unit is coupled to one of the waveguides. The photo transistor is electrically connected to the pixel electrode and one of the wires, and is coupled to the light filtering unit. The waveguide transmits a light control signal. Each wire transmits an electric control signal. The light filtering unit is configured to receive a sub control signal from the waveguides to which the light filtering unit is coupled and filter out a specific optical signal according to the received sub control signal as an input signal of the photo transistor.

Abstract: A method for fabricating a pad conditioning tool includes the steps: preparing a sapphire substrate with a specific orientation plane, wherein the specific orientation plane is selected from a group consisting of a-plane, c-plane, r-plane, m-plane, n-plane and v-plane; utilizing screen printing technique and a screen plate in order to transfer an image pattern such that upon solidifying one side surface of the sapphire substrate is imprinted with the image pattern; and performing an etching process on the side surface of the sapphire substrate such that the side surface is formed with a plurality of micro particles of specific structures.

Abstract: An apparatus for patterning a ribbon includes a holding device, a heating device, and an embossing device. The holding device is utilized for positioning the ribbon on a surface of a solar cell. The first solder layer contacts the solar cell. The heating device is utilized for melting the ribbon for string tabbing on the solar cell. The embossing device is utilized for contacting the melted ribbon to form a pattern on the ribbon. A surface energy between the ribbon and the solar cell is greater than a surface energy between the ribbon and the embossing device.

Abstract: A solar cell module includes a plurality of solar cells. M first bus bar electrodes are disposed on a first surface of each of the solar cells. N second bus bar electrodes are disposed on a second surface of each of the solar cells. M is a natural number that is equal to or larger than 1, and N is a natural number that is larger than M.

Abstract: A solar module is provided and includes a support element, a frame body, a photoelectric conversion module, and a protection element. An accommodating space is formed in a region surrounded by the frame body. The photoelectric conversion module is located in the accommodating space. The support element extends past the photoelectric conversion module and is connected to the frame body. The protection element is located on the photoelectric conversion module, and is located in the accommodating space.

Abstract: A solar cell module includes a plurality of solar cells. M first bus bar electrodes are disposed on a first surface of each of the solar cells. N second bus bar electrodes are disposed on a second surface of each of the solar cells. M is a natural number that is equal to or larger than 1, and N is a natural number that is larger than M.