Abstract: A calibration method and a calibration device for a large-size antenna array are provided. The calibration method includes: performing an intra-group calibration on each antenna group in a plurality of antenna groups; and powering on each of the antenna groups of the plurality of antenna groups to perform an inter-group calibration on a first antenna group in the plurality of antenna groups.

Abstract: An in-mold electronic (IME) device includes a curved substrate, a first conductive layer, a dielectric layer, a gap compensation layer, and a second conductive layer. The curved substrate has a first surface. The first conductive layer is disposed on the first surface. The dielectric layer is disposed on the first conductive layer and has a first thickness. The gap compensation layer is disposed on the first surface and connected to the dielectric layer. The gap compensation layer has a second thickness. The second conductive layer is disposed on the gap compensation layer and electrically connected to the gap compensation layer. A curvature radius of the curved substrate is c, a ratio of the second thickness to the first thickness is r, and c and r satisfy a relationship: r=1.5?0.02c±15%.

Abstract: An inspection system includes an excitation light source, a voltage-sensing film, an illumination light source, an image capture device. The excitation light source provides an excitation beam to light-emitting diodes to generate open-circuit voltages. The voltage-sensing film is at a top side of the light-emitting diodes and includes a voltage-sensing medium layer and a first electrode layer. The first electrode layer is in the voltage-sensing medium layer to provide a gain effect of the open-circuit voltages, so that the voltage-sensing medium layer senses the open-circuit voltages, and a display of the voltage-sensing medium layer is changed with a portion or all of the open-circuit voltages. The illumination light source provides an illumination beam to the voltage-sensing film to generate a sensing image according to a display change. The image capture device is on a transmission path of the sensing image and receives the sensing image to generate an inspection result.

Abstract: A measurement system includes a camera and a processor. The camera is configured to capture a measurement card image of a measurement card, and the measurement card image includes a number of feature pattern images. The processor is electrically connected to the camera and configured for analyzing the feature pattern images to obtain a feature point coordinate of a feature point of each feature pattern image, and inputting the feature point coordinates into a conversion matrix to obtain a tip coordinate of a tip of the measurement card.

Abstract: An aerial vehicle including a body, a first ranging device, a second ranging device and a controller is provided. The first ranging device is disposed on the body and is configured to detect a first distance between the first ranging device and the reflector. The second ranging device is disposed on the body and is configured to detect a second distance between the second ranging device and the reflector. The controller is configured to obtain an included angle between a direction of the body and the reflector according to the first distance and the second distance.

Abstract: A vinyl-containing copolymer is copolymerized from (a) first compound, (b) second compound, and (c) third compound. (a) First compound is an aromatic compound having a single vinyl group. (b) Second compound is polybutadiene or polybutadiene-styrene having side vinyl groups. (c) Third compound is an acrylate compound. The vinyl-containing copolymer includes 0.003 mol/g to 0.010 mol/g of benzene ring, 0.0005 mol/g to 0.008 mol/g of vinyl group, and 1.2*10?5 mol/g to 2.4*10?4 mol/g of ester group.

Abstract: A light source device, including a first light source, providing a first light beam in a first time period of a first period; and a second light source, providing a second light beam in a second time period of the first period, is provided. The first light beam and the second light beam have the same color temperature. The first light beam and the second light beam are emitted alternately in the first period, and a color rendering index of mixed light of the first light beam and the second light beam is greater than or equal to 85.

Abstract: A system and method deliver fluidized powder based on flue gas carrying waste slag and instant cooling steel slag. A first flue gas pipeline receives pressurized CO2-rich flue gas and in fluid communication with a fluidization air pipeline, a pressurization air pipeline and a supplementary air pipeline respectively and through them enters an upper discharge bin; a second flue gas pipeline receives the pressurized CO2-rich flue gas and in fluid communication with a gas-gas mixer, a dense phase discharge guide pipe first end extends into the upper discharge bin and receives high-pressure dense phase gas-powder flow of CO2-rich flue gas, and a dense phase discharge guide pipe second end is connected to the gas-gas mixer; a variable-pitch twin screw sealed conveyor discharge end extends into an upper discharge bin internal space, and is provided with an upwardly inclined gas-blocking segment.

Abstract: A laser automatic compensation control device includes a controller, a digital array, a decoder, a compensation array and a synchronizer. The controller is configured for receiving a number of laser energy signals and comparing each laser energy signal with a corresponding preset energy value to obtain a corresponding output digital signal. The digital array is electrically connected to the controller and configured for storing the output digital signals. The decoder is electrically connected to the digital array and configured for converting the output digital signals into a number of analog compensation signals. The compensation array is electrically connected to the decoder and configured for storing the analog compensation signals. The synchronizer is electrically connected to the compensation array and configured for receiving the analog compensation signals, and synchronously outputting the analog compensation signals to a laser diode array.

Abstract: A method for determining parameters of nanostructures, wherein the method includes steps as follows: Firstly, an X-ray reflection intensity measurement curve of a nanostructure to be tested is obtained by radiating the nanostructure to be tested with X-ray. The X-ray reflection intensity measurement curve is compared with an X-ray reflection intensity standard curve to obtain a comparison result. Subsequently, at least one parameter existing in the nanostructure to be tested is determined according to the comparison result.

Abstract: A module device on a first substrate includes a power module, a housing, a pair of locking structures. The housing covers the power module. The locking structures are installed on a pair of opposite sides of the housing, and the locking structure includes a main body, a locking ring, a pair of ribs and anchoring portions. The locking ring extends from a side toward an inner side of the main body, and is a double-ring structure, which includes an inner and an outer ring. A first side of the outer ring is connected to the main body, a second side of the outer ring is connected to the inner ring. The ribs extend along a normal direction of the top surface of the main body. The anchoring portions are disposed at the end of the ribs, and an extending direction is perpendicular to an extending direction of the rib.

Abstract: A flexible tube includes a first connecting portion and a second connecting section. The second connecting section and the first connecting section are integrally connected to each other. The first connecting section has a first end surface, and the second connecting section has a second end surface, wherein there is an acute angle between the first end surface and the second end surface.

Abstract: A power supply is provided. The power supply includes a power supply circuit and a control circuit. The power supply circuit includes a voltage converter and multiple point-of-load circuits. The voltage converter generates a third voltage according to a first voltage. The load point-of-load circuits generate at least one second voltage and at least one state signal according to the third voltage. The at least one second voltage is suitable for supplying power to a load. The control circuit is coupled to the power supply circuit. The control circuit determines whether a single event latch-up occurs in the power supply circuit according to the at least one state signal. When the single event latch-up occurs in the power supply circuit, the control circuit switches off the power supply circuit to stop generating the at least one second voltage and the at least one state signal.

Abstract: An optical fiber module is provided and includes an optical fiber structure, a light-absorbing area and a photoelectric sensor in a housing. The optical fiber structure collectively arranges a plurality of first optical fibers to form at least one optical fiber bundle with a tapered end, and a second optical fiber is connected to the tapered end of the optical fiber bundle to converge the optical fiber bundle to the second optical fiber. The light-absorbing area corresponds to an end of the second optical fiber, such that the light-absorbing area absorbs scattering signals escaped and scattered when signals are transmitted from the plurality of first optical fibers to the second optical fiber. The photoelectric sensor is arranged corresponding to the plurality of first optical fibers to receive target signals escaped and refracted when the signals are transmitted from the second optical fiber to the plurality of first optical fibers.

Abstract: A method of forming low-k material is provided. The method includes providing a plurality of core-shell particles. The core of the core-shell particles has a first ceramic with a low melting point. The shell of the core-shell particles has a second ceramic with a low melting point and a low dielectric constant. The core-shell particles are sintered and molded to form a low-k material. The shell of the core-shell particles is connected to form a network structure of a microcrystal phase.

Abstract: A heterogeneous integration semiconductor package structure including a heat dissipation assembly, multiple chips, a package assembly, multiple connectors and a circuit substrate is provided. The heat dissipation assembly has a connection surface and includes a two-phase flow heat dissipation device and a first redistribution structure layer embedded in the connection surface. The chips are disposed on the connection surface of the heat dissipation assembly and electrically connected to the first redistribution structure layer. The package assembly surrounds the chips and includes a second redistribution structure layer disposed on a lower surface and multiple conductive vias electrically connected to the first redistribution structure layer and the second redistribution structure layer. The connectors are disposed on the package assembly and electrically connected to the second redistribution structure layer.

Abstract: A heating device includes a heating element, a temperature sensor, a first heat pump element, a first heating block, a second heating block and a controller. The heating element is to receive an energy of the controller and convert the energy into a first thermal energy provided to the first heating block. A sensing result is generated by the temperature sensor according to the first thermal energy. The first heat pump element is to receive the energy of the controller for generating a temperature difference. The first thermal energy is conducted to the first heat pump element for forming a second thermal energy. The second heating block is to receive the second thermal energy. The controller correspondingly outputs the energy to the heating element and the first heat pump element according to the sensing result, and thereby controls the first thermal energy and the temperature difference.

Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.

Abstract: A MEMS device is provided. The MEMS device includes a substrate having at least one contact, a first dielectric layer disposed on the substrate, at least one metal layer disposed on the first dielectric layer, a second dielectric layer disposed on the first dielectric layer and the metal layer and having a recess structure, and a structure layer disposed on the second dielectric layer and having an opening. The opening is disposed on and corresponds to the recess structure, and the cross-sectional area at the bottom of the opening is smaller than the cross-sectional area at the top of the recess structure. The MEMS device also includes a sealing layer, and at least a portion of the sealing layer is disposed in the opening and the recess structure. The second dielectric layer, the structure layer, and the sealing layer define a chamber.

Abstract: A method and device for detecting urea are provided. The method for detecting urea includes the following steps. A derivatization reagent reacts with a sample to obtain a mixture, wherein a reaction time period for reacting urea in the sample with the derivatization reagent to form a derivative product is controlled. The derivative product is separated from the mixture. The amount of separated derivative product is analyzed to determine the concentration of urea in the sample.