Abstract: A vaporizer comprises an absorber and a heating element. The absorber is configured to absorb the material to be vaporized and comprises a plurality of first pores of a 100-500 nm diameter and a plurality of second pores of a 20-100 nm diameter. A ratio of the number of the second pores N2 to the number of the first pores N1 in a unit area, i.e., N2/N1, is 10-50%. The heating element heats and vaporizes the material to be vaporized in the absorber.

Abstract: An auxiliary screening system and an auxiliary screening method for a hip joint of a baby are provided. The auxiliary screening method includes: collecting plural images of the hip joint; performing an image analysis operation on each of the images of the hip joint to extract plural image features of each of the images of the hip joint and determining whether each of the images of the hip joint is a standard image according to the image features of each of the images of the hip joint; and when at least one of the images of the hip joint is determined as the standard image, plural angle parameters are calculated and the at least one of the images of the hip joint that is determined as the standard image is outputted, in which the angle parameters include values of an angle ? and an angle ?.

Abstract: A vaporizer comprises an absorber, a heating element, and a porous cover layer. The absorber is configured to absorb a material to be vaporized. The heating element is configured to heat and vaporize the material to be vaporized in the absorber, and includes a first electrode portion, a second electrode portion, and an electrically conductive connecting member connected between the first electrode portion and the second electrode portion. The porous cover layer covers at least a portion of the heating element without covering the first and second electrode portions. A ratio of an area of the porous cover layer to an area of the electrically conductive connecting member is defined as a covering ratio, which is at least 50%. A porosity of the porous cover layer ranges from 30% to 75%.

Abstract: A vaporizer comprises an absorber and a heating element. The absorber is configured to absorb the material to be vaporized and comprises a plurality of first pores of a 100-500 nm diameter and a plurality of second pores of a 20-100 nm diameter. A ratio of the number of the second pores N2 to the number of the first pores N1 in a unit area, i.e., N2/N1, is 10-50%. The heating element heats and vaporizes the material to be vaporized in the absorber.