3results about How to "Exclude subjective factors" patented technology

This invention provides a method, system, and device for optimizing gear profile modification parameters in a transmission, relating to the field of transmission gear profile modification technology. The method includes: constructing a simulation model of the transmission assembly structure; calculating the median point of the modification amount; randomly adding modification amount samples and conducting on-machine NVH tests to obtain measured NVH data; using a modification-vibration generalized extension approximation model, calculating the generalized extension approximation function curves between the tooth profile modification amount and the tooth direction modification amount and the vibration noise value, respectively, to determine the modification amount distribution range; splitting the median point of the modification amount and the modification amount distribution range; reselecting the median point of the modification amount; randomly selecting a preset number of modification amount samples, calculating the set of tooth profile modification amounts, the set of tooth direction modification amounts, and the corresponding transmission error set that satisfy a normal distribution; and statistically analyzing the transmission error set to obtain an NVH distribution pattern diagram. This scheme can effectively design and simulate optimal modification parameters, eliminating subjective factors in the design process.

This invention relates to the field of identification technology for precious woods and medicinal materials, particularly a method for non-destructive testing of agarwood based on micro-CT to determine its authenticity and quality. The technical solution includes: acquiring complete three-dimensional data of the agarwood interior through micro-CT non-destructive scanning; extracting characteristic parameters such as the three-dimensional topological structure of the interstitial phloem, the distribution and fullness of agarwood resin, and abnormal structures; identifying authenticity by comparing these parameters with a pre-built database, particularly effective in identifying internal forgery traces such as high-pressure oil injection and mechanical compression; simultaneously, using a multi-parameter fusion model to quantitatively evaluate the spatiotemporal distribution characteristics of agarwood resin and the proportion of resin-containing interstitial phloem to determine its quality grade; achieving comprehensive, objective, and non-destructive testing of agarwood from the inside out, from authenticity to quality, especially suitable for identifying high-end crafts, collectibles, and precious agarwood raw materials, solving the industry pain point that traditional destructive testing methods cannot be applied to intact products.

The present application belongs to the technical field of medical research methods, and particularly relates to a system and method for quantifying motor function impairment of a rat middle cerebral artery occlusion (MCAO) model. The system comprises a data acquisition module for acquiring motion images and plantar pressure data of an animal, a foot marking module for marking each foot of the animal in the motion images according to an artificial intelligence framework and attributing the plantar pressure data to each foot, and a plantar pressure data analysis module for analyzing motion data of the animal according to the plantar pressure data. The system and method provided by the present application can quantitatively analyze the MCAO model of a rat, and the degree of neural function impairment of the rat can be characterized by various motion data, so that the disease state can be accurately quantified, including whether the modeling is successful, the severity of the modeling and the progress of the disease. Therefore, the present application has a good application prospect in experimental research and drug development of cerebral apoplexy.