Abstract: A method for removing sulfates from seawater by immersing a barium adsorbent into produced water to adsorb the barium ions from the produced water. The adsorbent is combined with an acidic solution that pulls the barium ions into the acidic solution. The acidic solution containing barium ions is combined with seawater to precipitate the sulfate as barium sulfate (BaSO4).

Abstract: A recycling device and a recycling method for laminar structures bonded by cured adhesive are disclosed. The recycling device comprises a barrel device, a molten salt supply equipment and a transfer equipment. The barrel device accommodates the laminar structures. The molten salt supply equipment fills a specially formulated molten salt into the barrel device, and also discharges the molten salt from the barrel device. The transfer equipment transfers the laminar structures between the outside environment, the temperature-adjusting space and the barrel device. Through the design of the barrel device, molten salt supply equipment and transfer equipment, molten salt is used to heat and pyrolyze the solidified adhesive in the laminar structures to obtain recycled plate-like objects with a whole structure, so it can improve the shortcomings of conventional methods for recycling laminar structures such as direct heating pyrolysis, mechanical peeling or scraping.

Abstract: Systems and methods are disclosed. The method includes obtaining seismic data for a geological region of interest, a velocity model, and an attenuation model. The seismic data includes an amplitude and a phase of seismic waves traveling from a seismic source location. The method further includes determining a traveltime model using the seismic source location, the velocity model, and a traveltime Eikonal function and determining an attenuated traveltime model using a parallel fast sweeping method. The parallel fast sweeping method includes Cuthill-McKee ordering a plurality of grid nodes. The plurality of grid nodes represents the geological region of interest. The parallel fast sweeping method further includes using the seismic source location, the velocity model, the attenuation model, the traveltime model, and an attenuated traveltime Eikonal function. The method still further includes generating an updated attenuation model using the attenuated traveltime model, the amplitude, and the phase.

Abstract: A steerable drilling device has an outer tube extending along a longitudinal axis; a drill bit joint inserted into said outer tube, a lower end of said drill bit joint extending out of a lower end of said outer tube for connection to a drill bit; a joint drive mechanism, provided in said outer tube and configured to drive said drill bit joint to swing relative to the longitudinal axis; and a lower connection mechanism. The lower connection mechanism has a connection body connected to said joint drive mechanism in such a manner that said joint drive mechanism is non-rotatable with respect to said connection body, a first centralizer arranged between said connection body and said outer tube, a circuit system arranged in said connection body and configured to provide an electrical signal to said joint driving mechanism, and an attitude sensor arranged in said connection body.

Abstract: Disclosed herein are method, system, and computer product embodiments for generating a textual summary of a data set based on traversing a decision tree according to sequence and rank numbers related to a query. Subsets of the data set may receive a rank number indicating the relevancy of the subset of data to the query. In response to traversing the desicion tree, a textual summary representative of the data set and subsets of data may be generated and displayed. The textual summary may also include a course of action recommendation based on the culmination of the data set and relevant data subsets.

Abstract: A method for evaluating an aging state of a silicone rubber composite insulator includes: step 1: collecting samples from the silicone rubber composite insulator, and subjecting samples in a surface layer and a center layer successively to hydrophobicity, flexing resistance, hardness, color, and absorbance tests; step 2: determining relevant data of the samples in a natural evolution process according to the tests in step 1; step 3: subjecting the samples to thermo-oxidative aging; and after the thermo-oxidative aging is completed, subjecting the samples to a hardness test of artificial accelerated evolution, and calculating position coordinates (F1, F2) of the samples in an aging space; and step 4: classifying the samples in advance and solving an aging state centroid of each classified population, calculating a minimum aging distance based on the position coordinates in step 3, and evaluating the aging state of the silicone rubber composite insulator.

Abstract: A method may include obtaining various cross-spread gathers regarding a geological region of interest. The method may further include determining traveltime table data based on the cross-spread gathers. The method may further include transmitting the cross-spread gathers to various parallel processing groups in a parallel processing network. A respective cross-spread gather among the cross-spread gathers may be transmitted to a respective parallel processing group among the parallel processing groups. The method may further include determining, by various parallel processing nodes in the respective parallel processing group, a first subset of a migrated dataset using the respective cross-spread gather, a subset of the traveltime table data, a velocity model, and a migration function. The method may further include generating, based on various subsets of the migrated dataset that includes the first subset, a first seismic image of the geological region of interest.

Abstract: The present invention provides an oil slurry filter, a filter unit including the oil slurry filter, a multiple-filter system including the oil slurry filter, and a multiple-stage filter system including the oil slurry filter. Due to the use of the filter component of flexible texture in the oil slurry filter of the present invention, the problems that the filter material is easily blocked by high-viscosity colloidal impurities, the regeneration efficiency of the filter is poor and the filtration efficiency is low are solved, and it is possible to make the backwash treatment of the filter residue more convenient and improve the regeneration efficiency of the filter. The present invention also provides a filtering process using the oil slurry filter to ensure long-term stable operation of the oil slurry filtering process.

Abstract: An insole includes a heel cup portion supporting a heel, in which the heel cup portion has an outer height higher than an inner height.

Abstract: A graphitization furnace includes a furnace body, an upper lining, an insulating lining, a lower lining, a positive electrode and a negative electrode. The upper lining, the insulating lining and the lower lining are all disposed as attached to an inner wall of the furnace body, and the upper lining, the insulating lining and the lower lining sequentially abut against one another along a direction from top to bottom, and the upper lining, the insulating lining and the lower lining are all substantially provided with first through holes with a common axis. The positive electrode is substantially disposed vertically, a lower end of the positive electrode is disposed within the upper lining, the negative electrode is substantially disposed horizontally, and a middle part of the negative electrode is provided with a second through hole for passing raw ingredients.

Abstract: A system and method of testing pre-formed particle gels in an artificial fracture system may include introducing a suspension including a pre-formed particle gel into a testing device that includes an artificial fracture setup with a plurality of fracture model units. The system may be configured to inject pre-formed particle gels into an accumulator with magnetic stirrers first and then into a series of fracture model units configured to receive a fluid through a flow channel and, change the flow channel in a transverse direction relative to the direction of the fluid flow.

Abstract: The present disclosure provides an airflow detection circuit, wherein the airflow detection circuit includes: a first thermistor, one terminal of the first thermistor being coupled to a first resistor and a first switch, and the other terminal of the first thermistor being coupled to a first input terminal of a first operational amplifier; a second thermistor, one terminal of the second thermistor being coupled to the first resistor and the first switch, and the other terminal of the second thermistor being coupled to a second input terminal of the first operational amplifier; a voltage source, coupled to the first resistor and the first switch and configured to provide a supply voltage for the first thermistor and the second thermistor through a corresponding supply path based on ON or OFF of the first switch; and a controller, coupled to an output terminal of the first operational amplifier and configured to collect an output signal of the first operational amplifier and determine an airflow flow rate based

Abstract: Disclosed herein are aspects for dispersing a non-fungible token in response to a security program. An aspect begins by generating a three-dimensional virtual world. The aspect continues by receiving a request to access a test program as part of a security program in the three-dimensional virtual world. The test program includes a display of a source code and instructions for a user to resolve an associated challenge. The aspect then determines a tier of the user, where the tier indicates progress of the user in resolving challenges corresponding to the security program. The test program is generated based on the tier of the user and is generated on a user device through a perspective of a virtual camera. The aspect continues by receiving a resolution to the challenge. A non-fungible token is then generated based on the resolution, assigned to a digital wallet, and recorded on a blockchain.

Abstract: A well site may include a wellbore extending into a subsurface formation and a drilling rig with a top drive and a drive shaft to rotate a drill string extending into the wellbore. The drill string includes a drill bit at an end distal to the drilling rig to cut rock of the subsurface formation to form the wellbore. Acoustic sensors may be positioned on the drive shaft, or the top drive, or the drill string. The acoustic sensors are configured to record and transmit drilling acoustic signals during a dummy drilling operation and a real drilling operation. A computer system may be in communication with the acoustic sensors. The computer system processes the drilling acoustic signals during the dummy drilling operation and the real drilling operation to minimize a drilling environmental effect by deducting a drilling environmental noise from the drilling acoustic signals to calculate clean drilling acoustic signals.