Abstract: A system for purifying helium gas, a method, and an application. The system includes a first gas-liquid separation device, a primary helium extraction tower, a second gas-liquid separation device, a secondary helium extraction tower, and a nitrogen removal tower, which are in sequential communication. The first gas-liquid separation device performs first treatment to convert helium-containing natural gas into a first gas and first liquid phases; the primary helium extraction tower performs first distillation on the first gas and first liquid phases to obtain a second gas and second liquid phases; the second gas-liquid separation device performs second treatment to convert the second gas phase to a third gas and third liquid phase; the secondary helium extraction tower performs second distillation on the third gas and third liquid phases to obtain crude helium and a fourth liquid phase form which nitrogen is removed by the nitrogen removal tower.

Abstract: An automatic detection function-integrated detection apparatus includes a drill rod and an elastic water storage bag; two sides of the drill rod are a head region and a tail region, respectively; an interior of the drill rod has a water supply channel, a side wall of the drill rod is provided with a first channel, and a first valve is disposed in the first channel. The automatic detection function-integrated detection apparatus and method for the water flowing fractured zone may complete the detection of the water flowing fractured zone while drilling, and thus the labor intensity of workers may be reduced.

Abstract: The invention relates generally to systems and methods estimating a target outcome using a combination of quantum computing and a Monte Carlo simulation. A quantum processor loads variables and distributions into a quantum system, begins a quantum walk, performs arithmetic operations with the variables and distributions to initiate the steps in the quantum walk, and ultimately performs a quantum estimation of the quantum state to estimate a target variable.

Abstract: A computing system for generating a quantum circuit. The computing system samples a search space for candidate quantum circuits for a circuit layer of a quantum circuit design. The computing system evaluates performance of the candidate quantum circuits for the circuit layer. The computing system selects one of the candidate quantum circuits for the circuit layer based on the evaluated performance, adds an additional circuit layer based on the quantum circuit design to the selected one of the candidate quantum circuits.

Abstract: A computing system receives a request from a client device to verify a document associated with a user of the client device. The request includes an identity token of the user and the document to be verified. The computing system generates a hash value corresponding to the document using a public key. The computing system identifies a plurality of previously generated hash values linked to the identity token. Each of the plurality of previously generated hash values were generated using the public key by a second computing system distinct from the computing system. The computing system compares the generated hash value to the plurality of previously generated hash values. The computing system determines that the generated hash value matches at least one of the previously generated hash values. Based on the determining, the computing system confirms that the document is authentic.

Abstract: A machine learning hardening system and method for hardening machine learning models against adversarial attacks are disclosed, addressing the prevalent challenges of data imbalance and sophisticated adversarial attacks. The method involves preprocessing data for logistic regression, and augmenting the dataset with synthetic fraudulent transactions generated by a Negative-Calibrated Generative Adversarial Network (NCGAN) to ensure balance. Adversarial behavior is modeled to simulate fraudster responses to detection models, employing a Stackelberg game framework. A logistic regression model is trained using a sum of top-K loss function to focus on the transactions with the greatest loss, enhancing the detection of fraudulent activity.

Abstract: The present disclosure discloses a high-strength lightweight automobile compartment tonneau cover, including a top cover, a front cover, a first side cover, a rear cover, and a second side cover; a top of the front cover, a top of the first side cover, a top of the rear cover, and a top of the second side cover are respectively connected to an edge of the top cover; the front panel frame body includes four front panel profiles, two front panel upper end sockets, and two front panel lower end sockets; the four front panel profiles are respectively arranged on four sides of the front panel, and the top cover can be adjusted according to a size of a compartment; and integrally molded profiles are used, which improves the structural stability.

Abstract: A battery pack is provided, including at least one layer of battery cells in a height direction thereof. Each layer of battery cells includes either or both of a plurality of rows and a plurality of columns of battery cells. The battery cells in each row are arranged end-to-end in a length direction of the battery pack. The rows are arranged in a width direction of the battery pack. At least a part of the battery cells in each row are staggered with corresponding battery cells in an immediately adjacent row of battery cells. The battery cells in each column are arranged end-to-end in the width direction of the battery pack. The columns are arranged in the length direction of the battery pack. At least a part of the battery cells in each column are staggered with corresponding battery cells in an immediately adjacent column of battery cells.

Abstract: The present disclosure relates to improved placement, positioning, and/or orientation of radiators and baffles on a vehicle to improve and/or optimize air flow, radiator, and fuel cell performance.

Abstract: The present disclosure discloses a high-strength lightweight automobile compartment tonneau cover, including a top cover, a front cover, a first side cover, a rear cover, and a second side cover; a top of the front cover, a top of the first side cover, a top of the rear cover, and a top of the second side cover are respectively connected to an edge of the top cover; the front panel frame body includes four front panel profiles, two front panel upper end sockets, and two front panel lower end sockets; the four front panel profiles are respectively arranged on four sides of the front panel, and the top cover can be adjusted according to a size of a compartment; and integrally molded profiles are used, which improves the structural stability.

Abstract: The present application provides a preparation method for a core-shell structured tungsten/gadolinium oxide functional fiber for X and ? ray protection, comprising: first preparing a core-shell structured tungsten/gadolinium oxide powder; preparing a W@Gd2O3/PP blended melt from the powder; and preparing a W@Gd2O3/PP composite fiber from the blended melt. The core-shell structured tungsten/gadolinium oxide functional fiber prepared by the method can play a role in synergistic protection in the aspect of radiation protection, eliminate a weak protection area, and effectively absorb secondary radiation generated by radiation. Secondly, the prepared functional fiber has the characteristics of no lead and light weight, and has good application prospects in the aspect of X and ? ray radiation protection.

Abstract: The invention discloses a powder leakage monitoring device and a powder leakage monitoring method. The powder leakage monitoring device comprises light field camera, 3D PTZ (3-Dimensional Pan/Tilt/Zoom) and computer. Wherein, the light field camera records original light field images of monitored area; the 3D PTZ under the light field camera adjusts the shooting angle of the light field camera when it rotates according to the set direction; and the computer respectively connects to the light field camera and the 3D PTZ, which generates refocused images corresponding to the original light field images, and determines the spatial coordinates of the powder leakage point and the hazard range of the powder leakage in the monitored area according to the refocused images and the shooting angle. Therefore, the range and accuracy of powder leakage monitoring are both increased by using this invention.

Abstract: The invention provides a method for evaluating deep-buried tunnel blasting parameters, and belongs to the technical field of mine engineering. The method comprises: setting multiple diverse blasting schemes; selecting a plurality of test sections with the same geological characteristics, the number of the test sections corresponding to the number of the blasting schemes; blasting the test sections using the blasting schemes, and obtaining diversified monitoring data of each test section; and comparing the diversified monitoring data to select the optimal blasting schemes for the test sections. According to the method for evaluating the deep-buried tunnel blasting parameters, by implementing different blasting schemes in test sections with the same geological characteristics, diversified monitoring data of the test sections are obtained and compared to select the optimal blasting schemes for the test sections, so as to ensure the safety and quality of blasting excavation of deep-buried tunnels.

Abstract: The present application provides a preparation method for a core-shell structured tungsten/gadolinium oxide functional fiber for X and ? ray protection, comprising: first preparing a core-shell structured tungsten/gadolinium oxide powder; preparing a W@Gd2O3/PP blended melt from the powder; and preparing a W@Gd2O3/PP composite fiber from the blended melt. The core-shell structured tungsten/gadolinium oxide functional fiber prepared by the method can play a role in synergistic protection in the aspect of radiation protection, eliminate a weak protection area, and effectively absorb secondary radiation generated by radiation. Secondly, the prepared functional fiber has the characteristics of no lead and light weight, and has good application prospects in the aspect of X and ? ray radiation protection.

Abstract: A computing system receives a request to verify a user, the request comprising an indication of a jurisdiction in which the user will be verified. Based on the request, the computing system collects information related to the user. Based on the request, the computing system identifies a workflow corresponding to the jurisdiction. The workflow defines conditions for obtaining a verified status in the jurisdiction. The computing system executes the workflow to verify the user. The computing system hashes the verification record using a zero-knowledge proof protocol. The computing system generates a non-fungible token corresponding to the verification record. The non-fungible token is associated with a hashed version of the verification record. The computing system broadcasts the non-fungible token to a blockchain.

Abstract: The present disclosure belongs to the technical field of genetic modification of an enzyme preparation and particularly relates to a preparation method of a high-stability superoxide dismutase with a transmembrane capability. The method includes the following steps: extracting mRNA from Geobacillus stearothermophilus, synthesizing cDNA by a reverse transcription method, amplifying a large number of coding regions of the cDNA by designing a specific primer, ligating the coding regions to an E. coli expression vector, and transforming the coding regions into engineering bacteria BL21 (DE3). A point mutation technology is used to enhance stability of the superoxide dismutase and a flexible polypeptide linker GGGSGGGS (SEQ ID NO: 11) is designed, such that a soluble fusion expression of a transmembrane peptide YGRKKRRQRRR (SEQ ID NO: 10) and the superoxide dismutase is successfully realized.