Abstract: This disclosure relates to a divider, a processor, and a calculation apparatus. The divider includes: a first-stage shift circuit, configured to shift a received first operand to left to generate a second operand; a first-stage selection circuit, configured to select a first preset multiple of a third operand as a fourth operand from preset multiples of the third operand; and a first-stage operational circuit, configured to calculate an OR operation result of the first preset multiple and a difference between the second operand and the fourth operand as a fifth operand.

Abstract: This disclosure relates to a divider, a processor, and a calculation apparatus. The divider includes: a first-stage shift circuit, configured to shift a received first operand to left to generate a second operand; a first-stage selection circuit, configured to select a first preset multiple of a third operand as a fourth operand from preset multiples of the third operand; and a first-stage operational circuit, configured to calculate an OR operation result of the first preset multiple and a difference between the second operand and the fourth operand as a fifth operand.

Abstract: The present disclosure relates to a multiplier, a multiply-accumulate circuit, an operational circuit, a processor, and a calculation apparatus. The operational circuit includes an input processing circuit and the multiply-accumulate circuit. The input processing circuit receives a first number and outputs the first number as a first multiplicator for feeding into the multiply accumulate circuit by negating a sign bit of the first number in a case in which the first number is a signed number, and directly outputs the first number as the first multiplicator for feeding into the multiply-accumulate circuit in a case in which the first number is an unsigned number. The input processing circuit further receives a previously known second number and directly outputs the second number as a second multiplicator for feeding into the multiply-accumulate circuit. The multiply-accumulate circuit includes a multiplication subcircuit and an accumulation subcircuit.

Abstract: The present disclosure relates to a multiplier, a multiply-accumulate circuit, and a convolution operation unit. The multiplier includes: one or more selection circuits, each of the one or more selection circuits respectively configured to select a target preset multiple of a first operand from a preset multiple of a first operand as a fourth operand according to a corresponding third operand, wherein the target preset multiple is equal to a value of the third operand; and a partial product summing circuit, each of one or more input terminals of the partial product summing circuit respectively connected to an output terminal of corresponding one of at least one or more selection circuits, wherein the partial product summing circuit is configured to calculate a partial product sum of one or more fourth operands from the one or more selection circuits.

Abstract: The present disclosure relates to a virtual reality-based control method and apparatus, and an electronic device, and relates to the technical field of virtual reality. The method comprises: first monitoring image information captured by a camera for a user; identifying movement information of a target object in the image information; then, according to the movement information of the target object, displaying at least one interactive component model in a virtual reality space, and executing an interaction function event that is pre-bound to an interactive component model selected by the user. By means of applying the technical solution in the present disclosure, the technical problem that user control is easily influenced due to the buttons of an entity device being easily damaged can be effectively solved. A stronger technological sense can be brought to users, thereby enhancing the VR usage experience of users.

Abstract: The present disclosure belongs to the technical field of biomaterials and microbial immobilization, and relates to an interpenetrating network (IPN) microbial hydrogel with natural polysaccharides (PS) and proteins (PN) and a preparation method thereof. The natural PS of the hydrogel is selected from alginates, and the natural PN is selected from fibrous protein silk fibroin (SF) or methacrylated SF (SilMA). The natural PS and PN mimic extracellular PS and PN of aerobic granular sludge (AGS). Components in the hydrogel are uniformly mixed and each crosslinked to form an IPN. The natural PS undergoes ionic crosslinking, the SF in the natural PN undergoes self-assembly to form physical crosslinking, or the SilMA undergoes photocrosslinking. Loaded microbes uniformly adhere to a structure of the hydrogel. According to the preparation method of the hydrogel, a hydrogel precursor solution is sonicated and mixed with microbes, followed by bioprinting combined with crosslinking.

Abstract: The present application discloses a cam type airplane cabin door load simulation device and simulation method. The device comprises n cam groups, an input shaft, 3n couplers, and a friction disc load device; the n cam groups and the friction disc load device are connected in series by means of the input shaft; 3n couplers are provided on the input shaft; each cam group comprises a gravity cam simulation device, an inertia cam simulation device, and a wind load cam simulation device; and in each cam group, the gravity cam simulation device, the inertia cam simulation device, and the wind load cam simulation device are sequentially connected in series by means of the input shaft, and the tail ends of the n cam groups are connected in series with the friction disc load device by means of a coupler.