Abstract: The present disclosure discloses a stellera chamaejasme adhesive material, a preparation method, and a use. A stellera chamaejasme root is crushed, soaked with an extracting solution, evaporated for concentration, desugarized, and then further concentrated, to obtain a crude extract of the stellera chamaejasme root; and the crude extract of the stellera chamaejasme root and cellulose nanocrystals are prepared into a stable colloidal suspension, to obtain the stellera chamaejasme adhesive material. According to the embodiments of the present disclosure, a technical problem that an existing plant-based adhesive cannot be antibacterial and anticorrosive or has a complex preparation process is resolved. Alternatively, in the present disclosure, stellera chamaejasme cellulose nanocrystals are extracted from the stellera chamaejasme root, and the stellera chamaejasme cellulose nanocrystals together with the crude extract of the stellera chamaejasme root are prepared into a stable colloidal suspension.

Abstract: A system and method for changing a circuit design are described. The method includes generating a propagation graph for the circuit design and estimating slack values for some of the paths in the propagation graph. The method also includes making a virtual change to the circuit design and determining whether to accept or reject the change based on how the change affects the estimated slack values.

Abstract: A pet hammock for vehicle, adapted for accommodating one or more pets between a front seat and a rear seat of a vehicle, includes a main body including a front panel, a rear panel and a base panel, and a mounting unit including a front hanger and a rear hanger arranged for mounting the main body between the front seat and the rear seat through a plurality of anchor points provided at the front seat and the rear seat respectively, such that the base panel is suspendedly supported between the front hanger and the rear hanger while the front hanger and the rear hanger are secured with the front seat and the rear seat at the anchor points thereof. The front panel has a window covered with a see-through screen for communicating the front seat with the rear seat.

Abstract: A method of determining a clock tree for a circuit includes, in part, generating a multitude of symmetric clock configurations characterized by a multitude of columns and a multitude of rows. For each symmetric clock configuration, the method further includes, in part, selecting positions of a multitude of tap points defined by a multitude of end points of the multitude of rows, estimating a first cost from a tree root to each of the first multitude of tap points, estimating a second cost from the multitude of tap points to a multitude of clock sinks associated with the multitude of tap points, and determining the symmetric clock configuration cost in accordance with the first cost and the second cost.

Abstract: A system and method updates a clock tree based on skew values of the circuit design. The clock tree is updated by obtaining a circuit design that includes circuit elements and a clock tree. The clock tree includes clock sources and clock sinks. Data path slack values for the clock tree are determined based on the clock sources and the clock sinks. Further, clock arrival values for the clock tree are determined based on the clock sources and the clock sinks. A first total local skew value of the circuit design is determined based on the data path slack values, and the clock arrival values, and updating the clock tree based on the first total local skew value.

Abstract: A system and method for changing a circuit design are described. The method includes generating a propagation graph for the circuit design and estimating slack values for some of the paths in the propagation graph. The method also includes making a virtual change to the circuit design and determining whether to accept or reject the change based on how the change affects the estimated slack values.

Abstract: Provided is a method for preventing the accumulation of cylinder oil at scavenging ports of low-speed marine engines. An oil passage is provided on a cylinder wall inside a cylinder. The oil passage includes multiple oil storage grooves processed in a circumferential direction of the cylinder wall. The oil passage is formed by obliquely extending from the inner side of the cylinder wall to the outside of the cylinder in a radial direction of the cylinder. The scavenging ports are uniformly distributed in a circumferential direction of the cylinder wall, and each of the oil storage grooves is correspondingly processed at an upper portion of the scavenging port upper edge of the scavenging port. Each of the oil storage grooves has a shape matching the curved surface of the scavenging port upper edge.

Abstract: A nondestructive testing method for detecting and distinguishing internal and external defects of a wire rope includes: acquiring a magnetic flux signal and a MFL signal of a detected wire rope; preprocessing the magnetic flux signal and the MFL signal of the detected wire rope; comparing a preprocessed magnetic flux signal and a preprocessed MFL signal with a preset magnetic flux signal threshold and a preset MFL signal threshold respectively, and calculating a defect position; extracting a magnetic flux signal of a defect and an MFL signal of the defect based on the defect position; calculating a defect width of the detected wire rope based on the magnetic flux signal of the defect and the MFL signal of the defect; calculating a defect cross-sectional area loss of the detected wire rope based on the defect width; and determining whether the defect is the internal defect or the external defect.

Abstract: An implementation-quality synthesis process begins with a logical design of an integrated circuit and, through a series of steps, generates a fully synthesized physical design of the integrated circuit. One of the steps is clock synthesis, which generates the clock network for the integrated circuit. In certain embodiments, a method includes the following steps. A reduced clock synthesis process is applied, rather than the implementation-quality clock synthesis process. This generates a clock network for the logical design, which will be referred to as a proxy clock network because it is used as a proxy to estimate power consumption of the fully synthesized clock network. Because the reduced clock synthesis process runs much faster than the implementation-quality clock synthesis process, the front end designer may use these power estimates in the front end design process, including to explore different design variations in the logical design.

Abstract: A pet hammock for vehicle, adapted for accommodating one or more pets between a front seat and a rear seat of a vehicle, includes a main body including a front panel, a rear panel and a base panel, and a mounting unit including a front hanger and a rear hanger arranged for mounting the main body between the front seat and the rear seat through a plurality of anchor points provided at the front seat and the rear seat respectively, such that the base panel is suspendedly supported between the front hanger and the rear hanger while the front hanger and the rear hanger are secured with the front seat and the rear seat at the anchor points thereof. The front panel has a window covered with a see-through screen for communicating the front seat with the rear seat.

Abstract: A nondestructive testing method for detecting and distinguishing internal and external defects of a wire rope includes: acquiring a magnetic flux signal and a MFL signal of a detected wire rope; preprocessing the magnetic flux signal and the MFL signal of the detected wire rope; comparing a preprocessed magnetic flux signal and a preprocessed MFL signal with a preset magnetic flux signal threshold and a preset MFL signal threshold respectively, and calculating a defect position; extracting a magnetic flux signal of a defect and an MFL signal of the defect based on the defect position; calculating a defect width of the detected wire rope based on the magnetic flux signal of the defect and the MFL signal of the defect; calculating a defect cross-sectional area loss of the detected wire rope based on the defect width; and determining whether the defect is the internal defect or the external defect.