Abstract: Disclosed is a method for automatically extracting a jet stream axis based on semi-supervised learning with cross pseudo-supervision. The method includes: preprocessing acquired 11 types of grid-point wind field data and performing label mask conversion on manually labeled data; constructing a semi-supervised deep learning model with cross pseudo-supervision; training and evaluating the semi-supervised deep learning model with cross pseudo-supervision by using a preprocessing result and a label mask conversion result, and obtaining an image segmentation result according to the evaluated semi-supervised deep learning model with cross pseudo-supervision; and extracting the jet stream axis by using an eight-neighborhood connection algorithm based on a jet stream center axis point according to the image segmentation result.

Abstract: The present disclosure belongs to the technical field of pharmaceutical preparations, and specifically relates to a vitamin A and D soft capsule and a preparation method therefor. In the present disclosure, it is found unexpectedly through research that a CGKRK peptide, used as an anti-aging agent and added into a capsule wall material with gelatin as a matrix, has a better anti-aging effect on the gelatin than a single amino acid, and based on a lower addition amount, can greatly alleviate the problems of soft capsule disintegration, delayed dissolution and a decreased dissolution rate, thereby improving the stability and bioavailability of a vitamin A and D soft capsule preparation. Meanwhile, the vitamin A and D soft capsule preparation has a simple and practicable preparation method and inexpensive and readily available raw materials, and is extremely suitable for industrial mass production, thus having a good practical application value.

Abstract: An encrypted communication method and apparatus, a device, and a medium are disclosed. The method includes: a first protocol layer of a first party obtains a MAC address of a second party according to a data transmission request from an application layer, the data transmission request including an NLP address of the second party; the first protocol layer generates a first temporary key pair including a first temporary public key and a first temporary private key; the first protocol layer obtains a second temporary public key of the second party according to the first temporary public key; the first protocol layer generates a shared key according to the second temporary public key and the first temporary private key; the first protocol layer determines a data message, the data message carrying encrypted data obtained by encrypting using the shared key, and the receiver of the data message being the second party.

Abstract: An anesthesia machine, a respiratory support device, and a ventilation control method are provided. The ventilation module provides a first gas at a first ventilation frequency and a second ventilation frequency, respectively. When the ventilation module provides the first gas to a patient at the second ventilation frequency, the ventilation module can simultaneously provide the first gas to the patient at the first ventilation frequency in at least one of the multiple second inspiratory phases. As such, this disclosure provides respiratory support for a patient by superposing ventilation modes of two different frequencies, thereby improving an elimination rate of carbon dioxide, when providing the respiratory support for the patient.

Abstract: An anesthesia machine is disclosed, which includes an anesthetic delivery apparatus, a respiratory loop, a first ventilation control apparatus, and a ventilation module. The anesthetic delivery apparatus mixes a first gas with an anesthetic to obtain a second gas, and delivers the second gas to the respiratory loop. The first ventilation control apparatus controls the respiratory loop to periodically deliver the second gas to a patient, thereby providing anesthesia and respiratory support for the patient. The ventilation module performs periodic respiratory support on the patient by using the first gas. Therefore, according to the requirements of the clinical scenario, the corresponding ventilation support can be performed on the patient by using the anesthesia machine, thereby improving the application range of the anesthesia machine without using additional devices.

Abstract: A ventilation adjustment method and a high-frequency ventilation system, which ensure stable and accurate oxygen concentration control within an oxygen concentration setting range, are disclosed. The ventilation adjustment method includes: determining a first gas flow rate control value and a second gas flow rate control value according to a target output flow rate and an oxygen concentration setting value; determining whether the first gas flow rate control value falls into a first dead zone range and whether the second gas flow rate control value falls into a second dead zone range; if the first gas flow rate control value falls into the first dead zone range, maintaining a first gas flow rate controller turned on in an expiratory phase; and if the second gas flow rate control value falls into the second dead zone range, maintaining a second gas flow rate controller turned on in the expiratory phase.

Abstract: The present disclosure relates to medical monitoring and provides a method and an apparatus for detecting an instantaneous fetal heart rate of a Doppler fetal heart sound based on time-frequency analysis.

Abstract: The present invention provides a polypeptide TF1 for inhibiting type-2 Shiga-toxin activity, an encoding gene for the same and use thereof. The present polypeptide is named TF1 (also known as P1); its amino acid sequence is shown in SEQ ID NO: 1 in the sequence list. The polypeptide P1 can be prepared into medicine for preventing and/or treating diseases caused by type-2 Shiga toxin or the pathogens which produce type-2 Shiga toxin.

Abstract: Disclosed is an apparatus for installing a carbon dioxide absorbent canister which comprises a body, a lifting member, and a lifting mechanism. The body comprises a breathing circuit and an adapter for connecting the carbon dioxide absorbent canister with the breathing circuit. The adapter is located at or near the bottom of the body. The lifting member comprises a base portion, a positioning portion beneath the adapter, and a connecting portion. The lifting mechanism has a force receiving portion and a force applying portion and which actuates the lifting member. Actuating the handle in the first direction causes the canister to be connected to the breathing circuit and to close the breathing circuit bypass. Turning the handle in a second direction actuates the canister to enable replacement of the canister and to cause the breathing bypass to open. The process can be achieved simply with one hand.

Abstract: Disclosed is an apparatus for installing a carbon dioxide absorbent canister which comprises a body, a lifting member, and a lifting mechanism. The body comprises a breathing circuit and an adapter for connecting the carbon dioxide absorbent canister with the breathing circuit. The adapter is located at or near the bottom of the body. The lifting member comprises a base portion, a positioning portion beneath the adapter, and a connecting portion. The lifting mechanism has a force receiving portion and a force, applying portion and which actuates the lifting member. Actuating the handle in the first direction causes the canister to be connected to the breathing circuit and to close the breathing circuit bypass. Turning the handle in a second direction actuates the canister to enable replacement of the canister and to cause the breathing bypass to open. The process can be achieved simply with one hand.