Abstract: The present disclosure provides a method for photo-curing 4D printing of a multi-layer structure with an adjustable shape recovery speed, and a multi-layer structure printed thereby. The multi-layer structure printed by the method for photo-curing 4D printing of the multi-layer structure with the adjustable shape recovery speed includes a plurality of deformation units sequentially connected in series, and each of the plurality of the deformation units includes two slow layers, a fast layer, and a transition layer; and the fast layer is arranged between the two slow layers, and the transition layer is arranged between at least one of the two slow layers and the fast layer. In the present disclosure, a low cross-linking layer is doped with a nanocarbon light-absorbing material to solve the problem that the low cross-linking layer is prone to over-curing when a high cross-linking layer is printed on the low cross-linking layer.

Abstract: A primer group for simultaneous detection of 15 porcine pathogens through high-throughput targeted amplicon sequencing and use thereof are provided. The primer group for simultaneous detection of 15 porcine pathogens through high-throughput targeted amplicon sequencing includes: primers having nucleotide sequences set forth in SEQ ID NO: 1 to SEQ ID NO: 302. The nucleotide sequences of pathogenic target genes are set forth in SEQ ID NO: 303 to SEQ ID NO: 344. The primer group of the present invention is used for amplicon sequencing detection analysis method for 42 target genes of 15 porcine respiratory pathogens, has the technical advantages of rapidness, high efficiency, high targeting, strong specificity, and the like, and is suitable for rapid and accurate simultaneous diagnosis of multiple pathogens of diseased pigs in pig farms.

Abstract: The present disclosure provides a method for photo-curing 4D printing of a multi-layer structure with an adjustable shape recovery speed, and a multi-layer structure printed thereby. The multi-layer structure printed by the method for photo-curing 4D printing of the multi-layer structure with the adjustable shape recovery speed includes a plurality of deformation units sequentially connected in series, and each of the plurality of the deformation units includes two slow layers, a fast layer, and a transition layer; and the fast layer is arranged between the two slow layers, and the transition layer is arranged between at least one of the two slow layers and the fast layer. In the present disclosure, a low cross-linking layer is doped with a nanocarbon light-absorbing material to solve the problem that the low cross-linking layer is prone to over-curing when a high cross-linking layer is printed on the low cross-linking layer.

Abstract: An aza-ergoline derivative and a preparation method therefor and an application thereof. The derivative has a structure as shown in formula (I). The aza-ergoline derivative has good affinity, agonistic activity or selectivity to a dopamine D2 receptor.

Abstract: A self-calibration detection device and a temperature demodulation method oriented to a fiber Raman temperature sensing system. The self-calibration detection device comprises a fiber Raman thermodetector, thermostatic baths, a multi-mode sensing fiber, and a multi-mode reflector. The fiber Raman thermodetector comprises a pulsed laser whose output end is connected to the input end of a WDM. Two output ends of the WDM are respectively connected to input ends of a first and second APDs. Output ends of the first and second APDs are respectively connected to input ends of a first and second LNAs. Output ends of the first and second LNAs are connected to the input end of a data acquisition card whose output end is connected with the input end of a computer. The temperature demodulation method can solve the problems of low temperature measuring accuracy, lower temperature measurement stability and low temperature measurement efficiency.

Abstract: The present invention provides a movable point frog. In this application, quasi-continuity of rails is achieved at the frog, so that a gap in the frog is eliminated, vibration and noise are reduced, and transverse impact of wheels is eliminated. Guard rails do not need to be disposed. The frog itself does not limit the speed of a train running on a main line and a branch line. Therefore, the train running on the main line can pass through the frog without reducing the speed. A relatively small curve radius and a relatively large frog angle may be adopted for the branch line. Compared with integrally cast frog equipment in the prior art, all the components in this application are detachably connected, and therefore can be simply mounted, easily maintained, and produced in batch.

Abstract: A ground-illuminating lamp for a vehicle rearview mirror comprises a remote controller (2), a control circuit (1) and an illuminating lamp (3), wherein the remote controller (2) sends out instructions for turning on or turning off the illuminating lamp (3) to the control circuit (1) according to user's requirements, the control circuit (1) receives the instructions and controls the illuminating lamp (3) to turn on or turn off the illumination, and the illuminating lamp (3) is mounted at the lower portion of the rearview mirror.

Abstract: An air-blowing device for automobile back windscreen (10) comprises a control circuit (1), an air compressor (2), an air duct (3) and an air nozzle (4). The control circuit (1) controls the air compressor (2) to work or not to work, and an air vent of the air compressor (2) is connected with the air nozzle (4) through the air duct (3), said air nozzle (4) being installed on the automobile and facing towards the back windscreen (10). The device can be used in various automobiles to clear mist and water-droplets from the back windscreen (10) and make driver sight lines clearer.

Abstract: A ground-illuminating lamp for a vehicle rearview minor comprises a remote controller (2), a control circuit (1) and an illuminating lamp (3), wherein the remote controller (2) sends out instructions for turning on or turning off the illuminating lamp (3) to the control circuit (1) according to user's requirements, the control circuit (1) receives the instructions and controls the illuminating lamp (3) to turn on or turn off the illumination, and the illuminating lamp (3) is mounted at the lower portion of the rearview minor.

Abstract: A blow device for rear view mirror of a vehicle includes a control circuit (1), an air compressor (2), an air duct (3) and a blow nozzle (4). The operation of the air compressor (2) is controlled by the control circuit (1). The air outlet of the air compressor (2) is connected to the blow nozzle (4) via the air duct (3). The blow nozzle (4) is mounted on the vehicle facing the rear view mirror (10) and the side window (20) for removing the fog and water droplets on there. A sensor (7), as well as a compression frequency adjuster (6) and/or an air exhausting frequency adjuster (9) are added to the blow device. The sensor (7) is used to detect the swing frequency of the wiper (8) as a detected signal. The control circuit (1) processes the detected signal to generate an adjusting signal and then transmits the adjusting signal to the compression frequency adjuster (6) and/or the air exhausting frequency adjuster (9) respectively.

Abstract: A method of filtering a digital image is described. A filter kernel is applied to a respective pixel in a set of pixels to smooth noise and preserve spatial frequencies associated with image edges in the digital image in accordance with a first filtering parameter. The filter kernel is a function of the respective pixel and has a closed form for the respective pixel. The filter kernel includes contributions from a first set of neighboring pixels and has a content-dependent normalization such that a sum of elements in the filter kernel equals a substantially fixed value.

Abstract: A method of filtering a digital image is described. A filter kernel is applied to a respective pixel in a set of pixels to smooth noise and preserve spatial frequencies associated with image edges in the digital image in accordance with a first filtering parameter. The filter kernel is a function of the respective pixel and has a closed form for the respective pixel. The filter kernel includes contributions from a first set of neighboring pixels and has a content-dependent normalization such that a sum of elements in the filter kernel equals a substantially fixed value.