Abstract: An construction method of an embryonic chromosome signal library is provided. The construction method comprises obtaining an embryo and performing whole-genome amplification and next-generation sequencing to obtain a first chromosome signal; mapping the first chromosome signal to a chromosome reference signal to obtain a second chromosome signal; dividing the second chromosome signal within a predetermined interval range to obtain a third chromosome signal; and performing a regression correction on the sequencing read count (RC) of the third chromosome signal to obtain an embryonic chromosome signal library. Furthermore, a detection method and system of embryonic chromosomes are also provided. Thereby, the information comparison of the embryo chromosome signal library is used to determine whether the pre-implantation embryo is abnormal or not to achieve pre-implantation chromosome screening of pre-implantation embryos.

Abstract: An ultrasonic sensing device includes a housing, a piezoelectric assembly, a board and a plurality of fixing members. The housing includes a bottom wall, a top wall and a surrounding side wall connected between the top wall and the bottom wall. The piezoelectric assembly includes an encapsulating body and a piezoelectric sheet, wherein at least a portion of the piezoelectric sheet is enclosed by the encapsulating body and has a sensing surface exposed to the encapsulating body and facing the bottom wall. The board is disposed on the top wall of the housing and has a pressing surface facing the encapsulating body and the top wall. The plurality of fixing members is configured to fix the board to the top wall of the housing to press the board to the encapsulating body of the piezoelectric assembly, thereby pressing the sensing surface of the piezoelectric sheet to the bottom wall.

Abstract: An ultrasonic sensing device includes a housing, a piezoelectric assembly, a board and a plurality of fixing members. The housing includes a bottom wall, a top wall and a surrounding side wall connected between the top wall and the bottom wall. The piezoelectric assembly includes an encapsulating body and a piezoelectric sheet, wherein at least a portion of the piezoelectric sheet is enclosed by the encapsulating body and has a sensing surface exposed to the encapsulating body and facing the bottom wall. The board is disposed on the top wall of the housing and has a pressing surface facing the encapsulating body and the top wall. The plurality of fixing members is configured to fix the board to the top wall of the housing to press the board to the encapsulating body of the piezoelectric assembly, thereby pressing the sensing surface of the piezoelectric sheet to the bottom wall.

Abstract: A navigation apparatus including a central processing unit, an imaging module, a GPS module, a tire pressure monitoring module, and a storage module is provided. The imaging module captures an image signal. The central processing unit controls the imaging module to capture the image signal for generating image data, and further stores the image data in the storage module. The central processing unit executes the electronic map software stored in the storage module and receives the positional data generated by the GPS module for generating route guidance. The central unit receives the digital tire pressure signal received by the tire pressure monitoring module to generate tire pressure data and further identifies whether or not the tire pressure data is in compliance with a safety value.

Abstract: A navigation apparatus including a central processing unit, an imaging module, a GPS module, a tire pressure monitoring module, and a storage module is provided. The imaging module captures an image signal. The central processing unit controls the imaging module to capture the image signal for generating image data, and further stores the image data in the storage module. The central processing unit executes the electronic map software stored in the storage module and receives the positional data generated by the GPS module for generating route guidance. The central unit receives the digital tire pressure signal received by the tire pressure monitoring module to generate tire pressure data and further identifies whether or not the tire pressure data is in compliance with a safety value.