Abstract: An adsorbent is in a liquid-phase hydrogenation catalyst composition. A catalyst bed containing the liquid-phase hydrogenation catalyst composition may be applicable in adsorption technology or oil liquid-phase hydrogenation technology. The adsorbent contains a porous material and a hydrogenation active metal supported on the porous material. The adsorbent has an average pore diameter of 2-15 nm, a specific surface area of 200-500 m2/g, and the hydrogenation active metal is present in an amount, calculated as metal oxide, of 2.5 wt % or less, based on the total weight of the adsorbent. The adsorbent has a high hydrogen sulfide adsorption efficiency for a long period of time, and can effectively prolong the protection period for the hydrodesulfurization catalyst.

Abstract: The present application relates to the field of elastography technologies, and in particular, to an elastography method, apparatus and device, and a storage medium. The method includes: acquiring an elastography area of a to-be-detected tissue and a target pressure range of the to-be-detected tissue; determining a detection position where an elasticity detection probe is located when performing elasticity detection in the elastography area; performing the elasticity detection in the elastography area for a plurality of times based on the detection position and a plurality of pressure values within the target pressure range, to acquire a plurality of elastography results; and fusing the plurality of elastography results to determine a target elastography result of the to-be-detected tissue.

Abstract: The present application discloses a blood supply information extraction method and apparatus, an electronic device, and a computer-readable storage medium, where the blood supply information extraction method includes: controlling an ultrasonic probe to emit ultrasonic waves to a target body from a plurality of angles, and obtaining ultrasonic echo data of the target body at the plurality of angles, where the imaging areas of the ultrasonic waves emitted from the plurality of angles in the target body have an overlapping area; for the ultrasonic echo data at each angle, respectively performing a blood supply information extraction to obtain blood supply information of the target body at each angle; obtaining blood supply information of the target body in the overlapping area based on the blood supply information at each angle.

Abstract: A method and device for detecting tissue fibrosis. The method includes: determining whether there is a possibility for tissue inflammation; and when there is a possibility for tissue inflammation, monitoring tissue stiffness or a parameter reflecting tissue stiffness during a treatment of the tissue inflammation to determine whether the tissue inflammation has been eliminated; when the tissue inflammation has been eliminated or there is no possibility for tissue inflammation, obtaining a degree of tissue fibrosis or information related to the degree of tissue fibrosis according to tissue stiffness or a parameter reflecting tissue stiffness. The embodiments enable the tracking of the tissue stiffness during the treatment of tissue inflammation to determine whether tissue inflammation has been eliminated or not, and since tissue stiffness can be detected by a non-invasive quantitative detection technique of tissue elastic modulus, avoiding defects caused by tissue biopsy.

Abstract: A real-time correction method and apparatus for an optical fiber image, and a storage medium and an electronic device, where the method includes: receiving an original signal of an optical fiber image, where the original signal is an optical signal directly outputted by an optical fiber; calculating a real-time correction coefficient according to optical fiber pairs formed by optical fiber centers of the optical fiber, where the optical fiber includes a plurality of fiber bundles, each of which corresponds to an optical fiber center; and performing a real-time correction on the original signal according to the real-time correction coefficient to determine a corrected signal. This solves the problem in the related art of there being a deviation between an optical fiber image and an original image due to noise.

Abstract: Systems and methods determine friction in a borehole during drilling operations. A drilling system applies movement of a drill string located in a wellbore during drilling of the wellbore by the drilling system, and, using information from one or more surface and/or downhole sensors, the drilling system determines a friction between the borehole and the drill string. This can be repeated during drilling of the wellbore to determine multiple friction values, which can correspond to various depths of the borehole and/or the length of the drill string. Based on the determined friction values, the drilling system can generate a friction profile of the wellbore and can perform one or more actions resulting in modified drilling operations. The systems and methods also include oscillating a casing in the borehole, measuring the torque and angular position of the casing, and determining a friction value, which can be repeated to develop a wellbore friction profile.

Abstract: A method for detecting biological signs based on an ultrasonic detection system includes: sending, by a second processing module, a detection instruction to a master processing module in a first processing module; generating, by the master processing module, a first synchronization signal based on the detection instruction, and sending the first synchronization signal to a synchronous distribution module, so as to make the synchronous distribution module send the first synchronization signal to the master processing module and a slave processing module in the first processing module, and enable the slave processing module and the master processing module to control array elements to which they are respectively connected to transmit an ultrasonic wave simultaneously based on the first synchronization signal and collect an echo signal; and processing, by the second processing module, the echo signal collected by each array element to obtain information about the biological signs of an organism.

Abstract: The present invention relates to a cabazitaxel prodrug anti-tumor preparation, designs and synthesizes a small molecule cabazitaxel prodrug with branched fatty alcohol involving formulas (I), (II) and (III) and containing different fatty alcohol side chains and different linking chains, and prepares a self-assembled nanoparticle. Results showed that the self-assembled nanoparticle of the small molecule cabazitaxel prodrug with branched fatty alcohol can effectively improve the efficacy of cabazitaxel, reduce toxic and side effects.

Abstract: A hydrogenation catalyst and a preparation method therefor and the use thereof, and a hydrogenation reaction method for oil products are presented. The hydrogenation catalyst is a sulfurized hydrogenation catalyst and comprises a carrier, a molecular sieve and an active component, wherein the active component comprises at least one of group VIII metal elements and at least one of group VIB metal elements, and is characterized by using a TEM-EDS method. On the basis of the silicon element, the ratio of the amount of the molecular sieve directly acting on a group VIB metal sulfide to the total amount of the molecular sieve is 60-100%. The hydrogenation catalyst provided in the present invention can control a polycyclic aromatic hydrocarbon to realize ring opening without chain scission, generating a monocyclic aromatic hydrocarbon with a long-branched chain, which can be used as both an ethylene cracking raw material and a diesel product.

Abstract: Systems and methods determine friction in a borehole during drilling operations. A drilling system applies oscillatory angular movement at the top of a drill string in a wellbore during drilling by the drilling system, and measures a torque applied to the drill string and an angular position of the drill string. Based on the measured torque and the measured angular position, the drilling system computes a friction between the borehole and the drill string. This can be repeated during drilling of the wellbore to determine multiple friction values, corresponding to various depths of the borehole. Based on the computed friction, the drilling system can perform one or more actions resulting in modified drilling operation. The systems and methods also include oscillating a casing in the borehole, measuring the torque and angular position of the casing, and determining a friction value, which can be repeated to develop a wellbore friction profile.

Abstract: A solid particle bed has a sea zone and at least one island zone distributed in the sea zone, and has an upper surface, a lower surface, an axial direction and a radial direction. The island zone extends along the axial direction of the solid particle bed but does not extend to the lower surface, and the voidage of the island zone is 110-300% of the voidage of the sea zone. In the solid particle bed, the oil preferentially enters the packing area with a small voidage through the tail section of the packing area with a large voidage. As the deposition amount increases, the oil gradually changes its way by entering the packing area with a small voidage through the side of the packing area with a large voidage.

Abstract: A detection mode control circuit, including a morphological detection module (100) connected to a morphological detection probe (500), where the morphological detection module (100) is configured to generate a morphological detection control signal according to a user instruction or a system setting; further including an elasticity detection module (200) connected to a switch module (300) and configured to generate an elasticity detection control signal and a second control signal according to the user instruction or the system setting; where the switch module (300) is connected to a compound probe (600) and configured to receive the morphological detection control signal, the elasticity detection control signal and the second control signal, and control the compound probe (600) to perform morphological detection according to the second control signal or control the compound probe (600) to perform elasticity detection according to the second control signal.

Abstract: A hydrogenation catalyst contains a hydrogenation catalyst carrier and an active hydrogenation component. The active hydrogenation component includes a Group VIB metal sulfide and a Group VIII metal compound, and the molar proportion of a substance of the Group VIII metal compound that interacts with the Group VIB metal sulfide to the total amount of the Group VIII metal compound is 60-100%. The hydrogenation catalyst has a higher active metal sulfurizing degree and a higher number of type II active centers, and can be applied to the hydrogenation treatment process of oil products such as distillate oils and residual oils.

Abstract: A data processing method and apparatus, a device and a storage medium, where the method includes: obtaining first target result data according to an original ultrasonic echo signal, where the first target result data includes a related parameter of a detected object; performing feature extraction on the first target result data using a pre-trained feature extraction model to obtain second target result data; and performing corresponding processing on the detected object based on the second target result data. By performing feature extraction on the related parameter of the detected object using the pre-trained feature extraction model to obtain the second target result data, and further performing corresponding processing on the detected object based on the second target result data, thereby improving accuracy of judging the state of the detected object effectively.

Abstract: The present disclosure relates to an optical fiber image correction method, device and computer readable storage medium. The method comprises: obtaining a current optical fiber image and a central reference position of an optical fiber; in the current optical fiber image, correcting a central position of each optical fiber unit in the current optical fiber image according to a position difference condition between the central reference position of the optical fiber and a target position determined based on gray values in a neighboring range of the central reference position of the optical fiber; correcting brightness of the current optical fiber image that has completed a position correction according to a currently determined brightness correction coefficient.

Abstract: An improved typelog alignment for automated or interactive geosteering may use multi-stage penalized optimization.

Abstract: The present disclosure relates to an optical fiber image correction method, device and computer readable storage medium. The method comprises: obtaining a current optical fiber image and a central reference position of an optical fiber; in the current optical fiber image, correcting a central position of each optical fiber unit in the current optical fiber image according to a position difference condition between the central reference position of the optical fiber and a target position determined based on gray values in a neighboring range of the central reference position of the optical fiber; correcting brightness of the current optical fiber image that has completed a position correction according to a currently determined brightness correction coefficient.

Abstract: Disclosed are a method, apparatus and device for calculating signal attenuation, and a computer-readable storage medium. The method comprises: receiving an ultrasound signal by an ultrasonic imaging system, performing signal recovery operation on the ultrasound signal propagating in a tissue to obtain a recovered ultrasound signal; determining a type of the recovered ultrasound signal, and calculating attenuation information of the recovered ultrasound signal by adopting a calculation mode corresponding to the type according to the type of the recovered ultrasound signal. As such, the signal attenuation calculation flow is simplified, thereby enabling use of commercial probes therein, bringing convenience in operation, and increasing applicability. Accuracy and efficiency of attenuation calculation can be improved by means of performing signal recovery on an obtained ultrasonic signal and then performing attenuation calculation thereon.

Abstract: Provided are method, apparatus and device for measuring a thickness of a subcutaneous tissue, and a computer-readable storage medium. The method includes: emitting ultrasonic detection waves inwards from a skin surface, and acquiring ultrasonic echo signals of the ultrasonic detection waves; determining, according to ultrasonic parameter values of the ultrasonic echo signals and a characteristic parameter threshold of a subcutaneous tissue, the moment the ultrasonic echo signals from the boundary of the subcutaneous tissue are received; and calculating a thickness of the subcutaneous tissue according to the moment the ultrasonic echo signals from the boundary of the subcutaneous tissue are received, thereby enabling a precise measure of the thickness of the subcutaneous tissue.