Abstract: Disclosed is an ultra-fast laser scanning assisted integrated welding method for micro casting and forging, including the following steps: Step one, preparing liquid metal in a melt crucible; Step two: setting a heating temperature of a guide tube; Step three: calculating an amount of the liquid metal to be filled per unit time; Step four: setting a distance between a micro casting and forging area and a liquid metal outflow area; Step five: designing a wobbling mode of ultra-fast laser scanning, with a wobbling amplitude, a wobbling frequency and a laser power, and meanwhile setting a shielding gas flow rate; Step six: checking whether devices are in good working conditions or not; Step seven: setting start-stop signals of a crucible system, an ultrafast laser auxiliary system, and a micro-forging system when a welding trajectory changes, respectively; and Step eight: turning on the device to start welding.

Abstract: This application provides a video retrieval method, a device, and a medium. The video retrieval method includes extracting a keyframe of a video from an Interactive Electronic Technical Manual (IETM) common source database (CSDB) in an IETM platform, transferring the keyframe to a Contrastive Language-Image Pre-training (CLIP) encoder, and storing the keyframe in a keyframe database. A CLIP image encoder is used to encode the keyframe to determine a fused vector of all keyframe features, and the fused vector is stored in a vector database as a video feature. A CLIP text encoder is used to encode video retrieval text to determine a text feature, and the text feature is stored in a text database. A similarity between the text feature and the video feature is calculated to determine a text-video similarity matrix. Video retrieval is performed based on the text-video similarity matrix, and determining a video retrieval result.

Abstract: Provided is a biochar-anaerobic membrane biological treatment system and process. The system mainly includes a reaction tank, a membrane module, a macroporous gas distribution device, low-temperature pyrolysis biochar. The application of the process to sewage treatment shows that: under the conditions that the hydraulic retention time is 3.2-7.2 h, the membrane flux is 12.0-17.8 L/m2/h, and the sludge concentration of 7.2-15.6 g/L, multiple objectives of promoting organic micropollutants (OMPs) biotransformation, accelerating methane production and strengthening membrane fouling control were achieved. The system improved OMPs removal efficiency by more than 20%, decreased membrane fouling rate by 50%, and reaching an organic matter removal efficiency of more than 86% at low temperature. The system and process solve the problems of poor OMPs removal efficiency, serious membrane fouling, and low methane yield at low temperature in the anaerobic membrane biological treatment system.

Abstract: Disclosed is a hybrid welding method. The method includes the following steps: processing form of a groove is determined; defocus amounts and laser powers of leading laser and trailing laser, as well as welding currents and welding speed of leading arc and trailing arc are set; a distance between the leading laser and the leading arc is set, a distance between the trailing laser and the trailing arc is set, and a distance between the leading laser and the trailing laser is set; a time sequence of start-stop signals for devices when a welding trajectory changes is set, start signals for the devices are triggered at a same position, and stop signals are also triggered at a same position; whether the devices are in normal working conditions or not is checked; the devices are turned on to start welding.

Abstract: Provided is a food composition that comprises a plurality of amino acids or the salts thereof, wherein the plurality of amino acids or the salts thereof comprise about 0.0016-0.6 wt % of glycine or the salt thereof and about 0.00109-1.2 wt % of serine or the salt thereof. Also provided is a method for treating cancer in a subject in need thereof, comprising partly or completely substituting or replacing the normal diet of the subject with the food composition, and optionally administering to the subject a therapeutically effective amount of an anti-PD-1 antibody or an anti-PD-Li antibody.

Abstract: A solid-state lithium battery material. The method includes the following steps: material purification; nano wet milling; homogeneous reaction; and ball milling, to obtain high-purity nano lithium sulfide. The high-purity nano lithium sulfide of the present invention and a preparation method thereof can achieve high purity, excellent performance, simple operation, and good social and economic benefits.

Abstract: EV-grade high-purity lithium sulfide and a preparation method therefor, including: A. mixing and well grinding a lithium source and a sulfur source to obtain a mixture; B. primary reaction: mixing the mixture with hydrazine hydrate in an inert atmosphere and reacting to obtain an intermediate slurry; C. secondary reaction: performing secondary reaction on the intermediate slurry in the inert atmosphere and drying to obtain a crude lithium sulfide product; and D. calcining and ball milling the crude lithium sulfide product to obtain the EV-grade high-purity lithium sulfide. The purity of the EV-grade high-purity lithium sulfide prepared by the method is above 99.9%, the whiteness thereof is above 80, and D50?15 ?m; the method is characterized by simple process operation, high safety, low energy consumption, low equipment requirements and low production cost; therefore, the method is suitable for industrial production.

Abstract: The present disclosure provides a formulated pectin composition for lowering food glycemic index (GI) value. The formulated pectin composition comprises low-ester pectin and metal salt of bivalent/trivalent cation, with or without soluble polysaccharides. The formulated pectin composition may comprise the components: pectin and metal salt of bivalent or trivalent cation, in the following weight percentages: the pectin 94.3-97.1% and the metal salt of bivalent or trivalent cation 2.9-5.7%.

Abstract: A preparation method for EV-grade lithium sulfide includes: mixing and reacting sulfur powder, metallic lithium and a lithium-containing additive to obtain a crude lithium sulfide product, and then pulverizing and calcining the crude lithium sulfide product to remove excess sulfur powder to obtain the EV-grade lithium sulfide. The method being used for preparing the lithium sulfide is advantaged in simple process, strong operability, large-scale production, and being capable to meet the requirements for safe operation and EV-grade lithium sulfide, without toxic gas generation and secondary pollution.

Abstract: A preparation method for EV-grade lithium sulfide includes: mixing and reacting sulfur powder, metallic lithium and a lithium-containing additive to obtain a crude lithium sulfide product, and then pulverizing and calcining the crude lithium sulfide product to remove excess sulfur powder to obtain the EV-grade lithium sulfide. The method being used for preparing the lithium sulfide is advantaged in simple process, strong operability, large-scale production, and being capable to meet the requirements for safe operation and EV-grade lithium sulfide, without toxic gas generation and secondary pollution.

Abstract: EV-grade high-purity lithium sulfide and a preparation method therefor, including: A. mixing and well grinding a lithium source and a sulfur source to obtain a mixture; B. primary reaction: mixing the mixture with hydrazine hydrate in an inert atmosphere and reacting to obtain an intermediate slurry; C. secondary reaction: performing secondary reaction on the intermediate slurry in the inert atmosphere and drying to obtain a crude lithium sulfide product; and D. calcining and ball milling the crude lithium sulfide product to obtain the EV-grade high-purity lithium sulfide. The purity of the EV-grade high-purity lithium sulfide prepared by the method is above 99.9%, the whiteness thereof is above 80, and D50?15 ?m; the method is characterized by simple process operation, high safety, low energy consumption, low equipment requirements and low production cost; therefore, the method is suitable for industrial production.

Abstract: The present disclosure provides a formulated pectin for reducing food GI, comprising low-ester pectin and metal salt of bivalent/trivalent cation, with or without soluble polysaccharides. The components of the formulated pectin, according to the present disclosure, are synergistic with each other and can be added to a carbohydrate-based medium and high GI food to achieve the effect of lowering the GI value of the food through a unique physical reaction in the gastrointestinal tract, thereby obtaining a corresponding low GI food. In preparing the low GI food containing said formulated pectin of the present disclosure, only a small amount of said formulated pectin is required to be added to the raw material, and then customarily cooked or baked, allowing little effect on the processing, and almost no impact on the food taste and status. The food can be effective over a wide range of cooking temperatures.

Abstract: Assemblies and methods of use are described herein, including a telecommunication tray assembly, comprising a base structure, a faceplate assembly, and first and second ports. The base structure has front and rear ends and a length. The faceplate assembly is attached to the base structure and defines a first opening configured to receive a first type of optical module and a second opening configured to receive a second type of optical module. The first port is supported by the base structure, aligned with the first opening, and configured to receive the first type of optical module, and has a first leading edge offset from the front end by a first distance. The second port is supported by the base structure, aligned with the second opening, and configured to receive the second type of optical module and has a second leading edge offset from the front end by a second distance.

Abstract: Provided is a biochar-anaerobic membrane biological treatment system and process. The system mainly includes a reaction tank, a membrane module, a macroporous gas distribution device, low-temperature pyrolysis biochar. The application of the process to sewage treatment shows that: under the conditions that the hydraulic retention time is 3.2-7.2 h, the membrane flux is 12.0-17.8 L/m2/h, and the sludge concentration of 7.2-15.6 g/L, multiple objectives of promoting organic micropollutants (OMPs) biotransformation, accelerating methane production and strengthening membrane fouling control were achieved. The system improved OMPs removal efficiency by more than 20%, decreased membrane fouling rate by 50%, and reaching an organic matter removal efficiency of more than 86% at low temperature. The system and process solve the problems of poor OMPs removal efficiency, serious membrane fouling, and low methane yield at low temperature in the anaerobic membrane biological treatment system.

Abstract: This invention relates to an efficient and enantioselective synthesis of the spiro-compounds of formula (1) as common intermediate, featuring an asymmetric introduction of the all-carbon quaternary centre in high selectivity and a very efficient one-pot procedure for the C2 elongation to generate the spiro-structure. For the all-carbon quaternary centre, a Tsuji-Trost asymmetric allylic alkylation (AAA) process was designed to develop a sustainable procedure with very low catalyst loading, thereby also facilitating the Pd content control in the product, under practically solvent free conditions. Furthermore, multiple synthetic transformations in a one-pot procedure were implemented by using a one-pot procedure either in form of a three-transformation sequence comprising Hydroboration-Alkylation-Dieckmann Condensation to compound of formula (1) or in form of a five-transformation sequence comprising Hydroboration-Alkylation-Dieckmann Condensation-Hydrolysis-Decarboxylation to compound of formula (9).

Abstract: The present disclosure provides a formulated pectin for reducing food GI, comprising low-ester pectin and metal salt of bivalent/trivalent cation, with or without soluble polysaccharides. The components of the formulated pectin, according to the present disclosure, are synergistic with each other and can be added to a carbohydrate-based medium and high GI food to achieve the effect of lowering the GI value of the food through a unique physical reaction in the gastrointestinal tract, thereby obtaining a corresponding low GI food. In preparing the low GI food containing said formulated pectin of the present disclosure, only a small amount of said formulated pectin is required to be added to the raw material, and then customarily cooked or baked, allowing little effect on the processing, and almost no impact on the food taste and status. The food can be effective over a wide range of cooking temperatures.

Abstract: Apersonalized exercise guidance system and method based on machine learning are provided. The personalized exercise guidance system includes: a server, a doctor client, and a patient client. The patient client is configured to obtain basic data, evaluation data, and exercise behavior data of a patient, and send the basic data, the evaluation data, and the exercise behavior data to the server. The doctor client is configured to determine an exercise prescription according to the basic data and medical record data of the patient, and upload the exercise prescription and the medical record data to the server. The server is configured to determine an exercise effect according the evaluation data and the exercise behavior data of the patient.

Abstract: The present disclosure relates to a method and system for generating an exercise prescription based on multi-label screening and difficulty classification. The method includes: obtaining movement data from a database; classifying the movement data according to different effects of different exercises on an cardiopulmonary function; obtaining results of an exercise test of a patient; determining an exercise intensity of the patient according to the results of the exercise test; matching the exercise intensity with the classified movement data to obtain a movement data level corresponding to the exercise intensity; and generating a corresponding exercise prescription according to the movement data level. The method can automatically generate the corresponding exercise prescription according to different conditions of patients.

Abstract: The invention relates to a monitoring system for monitoring at least one device. The monitoring system comprises a magnification lens system to generate a magnified image of the at least one device, and at least three positional sensors in an arrangement around the magnification lens system to determine a position of the at least one device. The at least one device may be a surgical tool.

Abstract: An apparatus and system for a heat sink assembly, and a procedure for forming a heat sink assembly. The heat sink assembly includes a heat sink having a base and fins extending from the base, and a spring clip disposed on the heat sink between the fins. The spring clip includes a first tab that forms a first angle with respect to the base of the heat sink and including a second tab that forms a second angle with respect to the base of the heat sink. The first and second tabs are attached to the circuit board. By virtue thereof, a heat sink attachment to cage is provided that is space-efficient and permits a higher density of cages on a circuit board than do conventional arrangements.