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 annular optical component includes a plastic element and a metal element disposed on the plastic element. The plastic element includes a plastic part, and the metal element includes a metal part. The plastic part surrounds a central axis of the annular optical component so as to form a central opening. An outer annular surface and an inner annular surface of the annular optical component are opposite to each other. An object-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. An image-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. The image-side surface and the object-side surface are opposite to each other.

Abstract: An imaging lens assembly includes a plastic barrel, a lens set and a metal retainer. The metal retainer is for fixedly disposing the lens set in the plastic barrel and includes an inner annular portion, a plurality of fixing portions and a plurality of elastic portions. The inner annular portion forms a through hole. The fixing portions directly contact the plastic barrel for the metal retainer to be fixedly disposed in the plastic barrel. At least one of the elastic portions connects the inner annular portion and at least one of the fixing portions.

Abstract: An annular optical component includes a plastic element and a metal element disposed on the plastic element. The plastic element includes a plastic part, and the metal element includes a metal part. The plastic part surrounds a central axis of the annular optical component so as to form a central opening. An outer annular surface and an inner annular surface of the annular optical component are opposite to each other. An object-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. An image-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. The image-side surface and the object-side surface are opposite to each other.

Abstract: An annular optical component includes a plastic element and a metal element disposed on the plastic element. The plastic element includes a plastic part, and the metal element includes a metal part. The plastic part surrounds a central axis of the annular optical component so as to form a central opening. An outer annular surface and an inner annular surface of the annular optical component are opposite to each other. An object-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. An image-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. The image-side surface and the object-side surface are opposite to each other.

Abstract: An imaging lens assembly includes a plastic barrel, a lens set and a metal retainer. The metal retainer is for fixedly disposing the lens set in the plastic barrel and includes an inner annular portion, a plurality of fixing portions and a plurality of elastic portions. The inner annular portion forms a through hole. The fixing portions directly contact the plastic barrel for the metal retainer to be fixedly disposed in the plastic barrel. At least one of the elastic portions connects the inner annular portion and at least one of the fixing portions.

Abstract: An annular optical component includes a plastic element and a metal element disposed on the plastic element. The plastic element includes a plastic part, and the metal element includes a metal part. The plastic part surrounds a central axis of the annular optical component so as to form a central opening. An outer annular surface and an inner annular surface of the annular optical component are opposite to each other. An object-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. An image-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. The image-side surface and the object-side surface are opposite to each other.

Abstract: A method of calculating a fuel concentration in a direct methanol fuel cell is disclosed, and comprises the following steps. A direct methanol fuel cell is provided. One or more fuels with different known concentrations are separately provided for the direct methanol fuel cell such that the direct methanol fuel cell performs electrochemical reactions and generates power on the conditions of different known concentrations of fuels. A plurality of physical parameters produced when the direct methanol fuel cell is operated with fuels having known concentrations are respectively measured and recorded, and three of the physical parameters are selected to construct a corresponding three-dimensional measuring space. An interpolation means is generated based on the three-dimensional measuring space.

Abstract: A method of controlling fuel concentration in a direct liquid fuel cell is disclosed. In step 101, a direct liquid fuel cell including a first set of membrane electrode assemblies and a second set of membrane electrode assemblies is provided. In step 103, anodic liquid fuels with a known, low-limited concentration are injected into the second set of membrane electrode assemblies such that the second set of membrane electrode assemblies performs electrochemical reactions and generates a first current (I1) at a regular output voltage. Then, the I1 is recorded.