Abstract: The invention discloses a microcrack-based strain sensing element and a preparation method and use thereof. The microcrack-based strain sensing element includes a substrate layer, a metal film, a protective layer, an output electrode, and a packaging layer. The metal film is arranged on the substrate layer. The metal film is formed by deposition of two metal materials. The metal film is provided with a patterned crack structure. The protective layer is arranged on the metal film. The output electrode is connected to the metal film for outputting an electrical signal. The packaging layer is arranged on the protective layer. Compared with existing crack preparation technologies, the preparation method of the microcrack-based strain sensing element of the invention has higher-precision crack controllability, does not affect the service life of cracks, and achieves more optimized actual operation.

Abstract: The present disclosure relates to a molecular marker of the IGF2BP1 gene related to a chicken body size trait and the use thereof, and a genetic improvement method. In the present disclosure, it is found by means of gene association analysis that a deletion mutation in a promoter region of the IGF2BP1 gene of chicken is significantly associated with the chicken body size trait.

Abstract: A latch circuit includes a latch module, a set control module, a reset control module and a clock module, wherein the latch module is employed for latching data input by a data module, the set control module is employed for controlling the latch module to output a high-level signal, the reset control module is employed for controlling the latch module to output a low-level signal, and the clock module is employed for providing a readout clock signal to the latch module.

Abstract: A fuse fault repair circuit includes a fuse array, a signal storage module, and a scan repair module. The fuse array includes a redundant fuse array and a non-redundant fuse array. When the fuse array is not faulty, the redundant fuse array has no signal output, and the non-redundant fuse array outputs S first logic signals. Each storage unit in the signal storage module is configured to store a first logic signal sent by one fuse unit connected thereto. The scan repair module is configured to scan the storage units in the signal storage module, determine, when a faulty storage unit is scanned, that a first fuse unit connected to the faulty storage unit is faulty, and replace the first fuse unit with a first redundant fuse unit corresponding to the first fuse unit. The first logic signal corresponding to the first redundant fuse unit is a normal signal.

Abstract: A latch circuit includes a latch module, a set control module, a reset control module and a clock module, wherein the latch module is employed for latching data input by a data module, the set control module is employed for controlling the latch module to output a high-level signal, the reset control module is employed for controlling the latch module to output a low-level signal, and the clock module is employed for providing a readout clock signal to the latch module.

Abstract: Disclosed is a device for polishing an intraocular lens by using an electrorheological effect. The device comprises a supporting plate (14), an electric motor (16), a conductive slip ring (18), an outer sleeve (20), a tool shaft (22), a connecting flange (24), an annular electrode (26) and a tool needle (28). The electric motor (16), an outer ring of the conductive slip ring (18), and the outer sleeve (20) are all installed on the supporting plate (14). The electric motor (16) drives the tool shaft (22) to rotate by means of a transmission assembly. One end of the tool shaft (22) is closely fitted with an inner ring of the conductive slip ring (18), and the other end of the tool shaft extends into the outer sleeve (20). The connecting flange (24) is installed on the outer sleeve (20). The annular electrode (26) is connected to the connecting flange (24). One end of the tool needle (28) is connected to the tool shaft (22), and the other end of the tool needle extends out of the annular electrode (26).

Abstract: A bionic flexible actuator with a real-time feedback function and a preparation method thereof. The method includes: preparing stimuli-response layer and bionic flexible strain-sensor film layer, arranging bionic V-shaped groove array structure on bionic flexible strain-sensor film layer, and sticking bionic flexible strain-sensor film layer onto stimuli-response layer through adhesive layer; stimuli-response layer is prepared by adopting following steps: mixing multi-walled carbon nanotubes and polyvinylidene fluoride after being dissolved in a solvent respectively and obtaining a mixed solution; performing a film formation process to mixed solution and embedding a first electrode to obtain stimuli-response layer.

Abstract: A micro-vibration sensor and preparation method thereof. The method includes a metal sheet is coated with first curing material, and first curing material is cured into first cured layer; piezoelectric thin film element is attached to edge of first cured layer; one side, attached with piezoelectric thin film element, of first cured layer is vertically placed into second curing material, and second curing material is cured into second cured layer; and metal sheet is removed to obtain micro-vibration sensor. Due to fact that piezoelectric thin film element is arranged at a crack tip, during micro-vibration, stress in stress field of crack tip is rapidly increased due to crack stress deformation, and stress signal is efficiently converted into electric signal; and micro-vibration sensor has characteristics of being low in detection limit and high in accuracy.

Abstract: A fuse fault repair circuit includes a fuse array, a signal storage module, and a scan repair module. The fuse array includes a redundant fuse array and a non-redundant fuse array. When the fuse array is not faulty, the redundant fuse array has no signal output, and the non-redundant fuse array outputs S first logic signals. Each storage unit in the signal storage module is configured to store a first logic signal sent by one fuse unit connected thereto. The scan repair module is configured to scan the storage units in the signal storage module, determine, when a faulty storage unit is scanned, that a first fuse unit connected to the faulty storage unit is faulty, and replace the first fuse unit with a first redundant fuse unit corresponding to the first fuse unit. The first logic signal corresponding to the first redundant fuse unit is a normal signal.

Abstract: A bionic flexible actuator with a real-time feedback function and a preparation method thereof. The method includes: preparing stimuli-response layer and bionic flexible strain-sensor film layer, arranging bionic V-shaped groove array structure on bionic flexible strain-sensor film layer, and sticking bionic flexible strain-sensor film layer onto stimuli-response layer through adhesive layer; stimuli-response layer is prepared by adopting following steps: mixing multi-walled carbon nanotubes and polyvinylidene fluoride after being dissolved in a solvent respectively and obtaining a mixed solution; performing a film formation process to mixed solution and embedding a first electrode to obtain stimuli-response layer.

Abstract: A micro-vibration sensor and preparation method thereof. The method includes a metal sheet is coated with first curing material, and first curing material is cured into first cured layer; piezoelectric thin film element is attached to edge of first cured layer; one side, attached with piezoelectric thin film element, of first cured layer is vertically placed into second curing material, and second curing material is cured into second cured layer; and metal sheet is removed to obtain micro-vibration sensor. Due to fact that piezoelectric thin film element is arranged at a crack tip, during micro-vibration, stress in stress field of crack tip is rapidly increased due to crack stress deformation, and stress signal is efficiently converted into electric signal; and micro-vibration sensor has characteristics of being low in detection limit and high in accuracy.