9 results about "Incubation period" patented technology

This invention discloses a non-destructive method for sex detection of chicken embryos in the early incubation period based on RF-DS image information fusion. Machine vision and a spectrometer are used to collect information on horizontally placed embryos at day 4 of incubation. Based on image and spectral preprocessing, image texture features and spectral features are extracted. Then, basic probability assignment functions (BPAs) are constructed using the RF classification results of two single-feature types as independent evidence. Decision-level fusion is performed using D-S evidence theory, and the final identification result is given based on the classification decision threshold. Experimental results show that the highest accuracy of the image and spectral single-feature RF models reaches 78.00% and 82.67%, respectively, while the multi-feature decision fusion identification method achieves an accuracy of 88.00%, with sex identification rates of 90.00% and 86.25%, respectively. The time for identifying a single egg is 2.843 seconds. These results demonstrate that this spectral-image information fusion method can improve the accuracy of sex identification in early incubation embryos.

This invention relates to a composition with antitussive effects. By weight, the composition contains 5-25 parts of green plum, 1-20 parts of dried plum, 1-20 parts of monk fruit, 1-20 parts of platycodon root, and 1-20 parts of peppermint. The antitussive composition of this invention scientifically selects and proportions its components, which can reduce the continuous damage to the respiratory system caused by the harsh environment of high altitudes, quickly relieve coughs and dry, itchy throats, etc., shorten the course of the disease, and prevent prolongation and recurrence by prolonging the incubation period of coughs and reducing the frequency and severity of coughs. It also has the advantages of high safety, a sweet and refreshing taste, easy portability, and good patient compliance. It is particularly suitable for preventing and treating severe dry coughs, persistent coughs, and paroxysmal coughs caused by the cold, dryness, and low oxygen levels of high altitudes, maintaining the health and work capacity of personnel working at high altitudes.

This invention belongs to the field of artificial intelligence technology, specifically a deep learning-based method for early warning and auxiliary diagnosis of animal epidemics in animal husbandry and veterinary medicine. It includes constructing an environmental-physiological feature decoupling model to separate environmental stress from pathological deviations; using graph convolutional neural networks to analyze the dynamic evolution of group social topology and capture individual out-of-group tendencies; employing a spatiotemporal multi-scale feature fusion architecture to integrate and process physiological sequences, posture features, and social relationships; and using a biological attribute mapping layer to reverse-map the neural network state into clinical pathological descriptors. This application achieves environmental interference removal and accurate capture of the epidemic incubation period, provides logically traceable auxiliary diagnostic reports, and significantly improves the certainty of epidemic prevention decisions.

A method for quantifying a cellulosic component in a sample includes preparing a first suspension by mixing an amount of sample with first aqueous acid at a concentration of 40 wt-% or greater; incubating the first suspension in a first incubation stage at a first incubation temperature of less than 40° C.; adding water or aqueous sulfuric acid to the incubated first suspension to form a second suspension having a concentration 40 wt-% or less of sulfuric acid based on a total weight of the second suspension; incubating the second suspension in a second incubation stage at a second incubation temperature of 50° C. or greater for an incubation period, wherein the sample is not subjected to hydrolysis at temperatures above 98° C.; separating a supernatant from the incubated second suspension; analyzing the supernatant for total content of xylose, mannose, galactose, and arabinose; and calculating, based on the analysis, the amount of the hemicellulose.

This invention discloses an early warning system and method for peritoneal dialysis infection. The early warning system includes a disposable test card and a detection device. The disposable test card has a sample inlet, a sampling chamber, a reaction chamber, and an observation window that are sequentially fluid-connected. The reaction chamber is pre-filled with a lyophilized metabolic catalytic medium, which includes a concentrated substrate, a metabolic activator, and a signal indicator. The detection device has a housing and a temperature control unit, a photoelectric detection unit, a signal processing unit, and a display unit installed within the housing. The temperature control unit controls the ambient temperature of the reaction chamber during a catalytic incubation period. The photoelectric detection unit periodically performs dynamic optical scanning of the observation window during the catalytic incubation period to obtain a time-series detection signal. The signal processing unit assesses the infection risk based on the time-series detection signal.

The present invention relates to a method for incubating a plurality of poultry eggs in a hatchery, comprising the step of controlling the heating of the plurality of poultry eggs in a multi-stage egg heating process until hatching occurs, wherein the multi-stage egg heating process comprises at least an initial incubation stage of uniformly heating the plurality of poultry eggs from physiological zero to incubation temperature during an initial incubation period of 4 to 8 days, and a subsequent main incubation period of maintaining the plurality of eggs at the incubation temperature.

The application discloses a peritoneal dialysis infection risk early warning method and system, wherein the method comprises the following steps: continuously collecting the abdominal cavity pressure signal of a patient, and extracting disturbance features representing random fluctuations of the pressure from the pressure signal; calculating the disturbance entropy of the pressure signal and the time derivative thereof according to the disturbance features; dynamically adjusting the time window length of the infection risk prediction according to the disturbance entropy and the time derivative; calculating the progressive risk value of the peritoneal dialysis infection of the patient based on the adjusted time window, the disturbance entropy and the time derivative, and outputting early warning information when the progressive risk value reaches a preset threshold. The application can capture the acceleration features of the random fluctuations of the abdominal cavity pressure in real time, realize the early identification of the acceleration stage of the infection incubation period, and dynamically adjust the prediction window according to the risk, thereby significantly improving the timeliness and sensitivity of the early warning.

The present application belongs to the technical field of poultry hatching prevention and control, and particularly relates to a chicken embryo hatching period whole cycle prevention and control method based on phage layered delivery, comprising: screening phage strains suitable for different embryo age stages; preparing a composite carrier matrix with a porous structure by using chitosan and sodium alginate; preparing a layered delivery film by using a laminating film forming process to load different phage strains in the composite carrier matrix; attaching and covering the layered delivery film on the surface of the to-be-hatched egg, and placing the coated egg in a hatching device for hatching; combining the characteristics of the outer layer of the layered delivery film degrading first and the inner layer degrading later, and cooperating with a step-by-step solidification process to ensure the interlayer pores being connected, so that the layered delivery film wrapped around the egg degrades in sequence, and each embryo age chicken embryo can obtain the suitable phage at the corresponding infection risk stage, the hatching whole process is matched with the infection prevention and control stage, and a whole cycle prevention and control system covering early prevention, middle treatment and late targeted elimination is constructed.