Abstract: Embodiments of the disclosure provide a circuit, chip, system, and method for eliminating random perturbation. The circuit includes a weight calculating module for receiving digital signals and random perturbation digital quantity, using least mean square error algorithm to calculate weight deviation iteration coefficient based on digital signal and digital quantity, and updating perturbation weight in real-time according to weight deviation iteration coefficient; and a perturbation eliminating module for eliminating perturbation signal in output digital signal of quantizer according to perturbation weight updated in real-time and updating perturbation weight in real-time according to weight deviation iteration coefficient, and then calculating current perturbation weight in real time to realize self-calibration of perturbation weight.

Abstract: A device for removing iron from a nickel-cobalt-manganese sulfuric acid solution and a method for continuously removing iron ions from a nickel-cobalt-manganese sulfuric acid solution. The device has an iron removal reactor (2) having a stirrer (3) and an iron removal reactor inner cylinder (5) and an aging reactor (9) having an aging reactor stirrer (7) and an automatic stone powder feeder (8), a mixing feed pipe (12) and a carbonate solution feed pipe (4) are arranged in an interlayer between the iron removal reactor (2) and the iron removal reactor inner cylinder (5), a mixer (1) for a preheating the device is arranged at a top of the mixing feed pipe (12), a compressed air inlet (11) and a feed inlet (10) of a solution to be subjected to iron removal are arranged in the mixer (1). Further disclosed is a method for removing iron of the device.

Abstract: The invention discloses a method and crystallization device for preparing electronic-grade nickel sulfate from nickel powder, and a control method of the crystallization device, and relates to the technical field of non-ferrous metal hydrometallurgy. The method comprises: oxidation, cooling, acid leaching, copper removal, acid adjustment, concentration, cooling crystallization, drying and screening, and secondary leaching: the oxidation comprises: controlling a temperature of nickel powder in a calcining furnace to be 400° C. to 700° C., allowing a use amount of compressed air for each kilogram of nickel powder to be 1 m3 to 5 m3, and making the reaction last for 1.0 hour to 2.5 hours; and the acid leaching comprises: placing cooled nickel oxide in a reactor, controlling a temperature to be 45° C. to 70° C., adding dilute sulfuric acid to control a pH value to be 0.5 to 1.5, and making the reaction last for 1 hour to 3 hours.

Abstract: Disclosed are a method and device for extracting and preparing battery-grade lithium carbonate from a P507 raffinate. The method comprises steps of impurity adjustment, extraction, purification, reverse extraction, alkalization, crystallization, separation, drying, the impurity adjustment comprises: adjusting a pH value of the P507 raffinate to be 8.5 to 10.5 with lithium hydroxide or alkali, and filtering to obtain a filtrate for later use; the alkalization comprises: heating a lithium solution to 85° C. to 95° C., adding lithium hydroxide or alkali to adjust a pH value to be 9.0 to 13.0, maintaining a temperature at 85° C. to 95° C. and standing for 2 hours to 8 hours, and then filtering to obtain a filtrate for later use; and the crystallization comprises: introducing compressed air into the filtrate after alkalization, evaporating and concentrating at the same time, and discharging and cooling when fine crystals exist in the concentrated solution.

Abstract: Some embodiments of the disclosure describe an evaluation system based on analyte data including a memory storing a program, a display, and a processor. In some examples, the processor is configured to: receive analyte data during a predetermined time period from an object to be tested, acquire a plurality of analyte indicators different from each other based on the analyte data, normalize the plurality of analyte indicators to a predetermined range to acquire a plurality of normalized analyte indicators, plot a polygon pattern corresponding to the analyte data during the first time period as a target polygon pattern, plot a polygon pattern corresponding to the analyte data during the second time period as a reference polygon pattern, and take a line segment between a vertex and a center point as an axis, and display the target polygon pattern and the reference polygon pattern.

Abstract: A magnetic control device (30) for a capsule endoscope (10) including at least a first magnet (11) and an imaging device (12), and the capsule endoscope (10) is located in a tissue cavity (3). The magnetic control device (30) includes a second magnet (31) and a first induction coil (32) arranged around the second magnet (31). The magnetic control device (30) is configured to generate a driving force to the capsule endoscope (10) to move the capsule endoscope (10) from a first position (P1) in the tissue cavity (3) to a second position towards an opposite side in the tissue cavity (3); to control a variable magnetic field to decelerate the capsule endoscope (10) to a predetermined speed when the capsule endoscope (10) approaches the second position (P2); and to generate the variable magnetic field for the capsule endoscope (10).

Abstract: An accommodation structure and an apparatus kit are provided. The accommodation structure is configured for receiving a mobile terminal. The accommodation structure includes a base. The base is provided with a groove, the groove has a bottom provided with an accommodating slot for receiving the mobile terminal, and the groove has a depth increasing from an edge of the groove to a position where the accommodating slot is located. The accommodating slot has a depth varying along a periphery of the accommodating slot, and the depth of the accommodating slot has a minimum value at a position of a maximum depth of the groove.

Abstract: The present invention provides a modified repair solution, a preparation method thereof, and a method for repairing color resist. Through adding additives to a photoresist solvent, a ketone compound in the modified repair solution is adsorbed on a surface of a source/drain metal layer to chemically react with a molecular linker to form a transparent colloid. The colloid is colorless and transparent, insoluble in water and organic solvent, and has strong adsorption with aluminum. After the transparent colloid is formed, further formation of the colloid is prevented, and aluminum is prevented from contacting with alkaline modified repair chemical solution, thereby preventing aluminum from being corroded; moreover, the chemical solution can be prevented from remaining in a damaged portion of a protective layer, and reaction with aluminum at high temperatures in post processing can be prevented, thereby preventing a vertical disconnection.

Abstract: An accommodation structure and an apparatus kit are provided. The accommodation structure is configured for receiving a mobile terminal. The accommodation structure includes a base. The base is provided with a groove, the groove has a bottom provided with an accommodating slot for receiving the mobile terminal, and the groove has a depth increasing from an edge of the groove to a position where the accommodating slot is located. The accommodating slot has a depth varying along a periphery of the accommodating slot, and the depth of the accommodating slot has a minimum value at a position of a maximum depth of the groove.

Abstract: The present invention provides a modified repair solution, a preparation method thereof, and a method for repairing color resist. Through adding additives to a photoresist solvent, a ketone compound in the modified repair solution is adsorbed on a surface of a source/drain metal layer to chemically react with a molecular linker to form a transparent colloid. The colloid is colorless and transparent, insoluble in water and organic solvent, and has strong adsorption with aluminum. After the transparent colloid is formed, further formation of the colloid is prevented, and aluminum is prevented from contacting with alkaline modified repair chemical solution, thereby preventing aluminum from being corroded; moreover, the chemical solution can be prevented from remaining in a damaged portion of a protective layer, and reaction with aluminum at high temperatures in post processing can be prevented, thereby preventing a vertical disconnection.

Abstract: Methods for processing seismic data acquired with non-impulsive moving sources are provided. Some methods remove cross-talk noise from the seismic data using emitted signal data and an underground formation's response estimate, which may be iteratively enhanced. Some methods perform resampling before a spatial or a spatio-temporal inversion. Some methods compensate for source's motion during the inversion, and/or are usable for multiple independently moving sources.

Abstract: Computing device, computer instructions and method for improving accuracy of an image of a surveyed subsurface. The method includes a step of receiving seismic data (D) recorded with seismic sensors; a step of deghosting the seismic data (D) using a sparseT-Pinversion algorithm together with a low-rank optimization scheme and a high-cut filter to calculate ghost-free wave-fields (U0(t,x,y)) in the time-space domain; and a step of processing the ghost-free wave-fields (U0(t,x,y)) to generate the image of the surveyed subsurface.

Abstract: Methods and systems for optimized receiver-based ghost filter generation are described. The optimized ghost filter self-determines its parameters based on an iterative calculation of recorded data transformed from a time-space domain to a Tau-P domain. An initial ghost filter prediction is made based on generating mirror data from the recorded data and using a least squares technique during a premigration stage.

Abstract: Generating spectrally enhanced seismic data expresses seismic data as a convolution of reflectivity and a seismic source wavelet. This seismic source wavelet varies over a sampling interval and defining a total amount of energy over the sampling interval. An enhanced seismic source wavelet that is a single-valued energy spike that yields the total amount of energy over the sampling interval is generated. In addition, the reflectivity is modified to preserve amplitude variation with angle. The reflectivity is convoluted with the enhanced seismic source wavelet and residual energy is added to the convolution to generate the spectrally enhanced seismic data.

Abstract: Methods for processing seismic data acquired with non-impulsive moving sources are provided. Some methods remove cross-talk noise from the seismic data using emitted signal data and an underground formation's response estimate, which may be iteratively enhanced. Some methods perform resampling before a spatial or a spatio-temporal inversion. Some methods compensate for source's motion during the inversion, and/or are usable for multiple independently moving sources.

Abstract: Generating spectrally enhanced seismic data expresses seismic data as a convolution of reflectivity and a seismic source wavelet. This seismic source wavelet varies over a sampling interval and defining a total amount of energy over the sampling interval. An enhanced seismic source wavelet that is a single-valued energy spike that yields the total amount of energy over the sampling interval is generated. In addition, the reflectivity is modified to preserve amplitude variation with angle. The reflectivity is convoluted with the enhanced seismic source wavelet and residual energy is added to the convolution to generate the spectrally enhanced seismic data.

Abstract: Methods and systems for shear noise attenuation based on matching vertical particle velocity data and pressure data are described. The shear noise attenuation is based on the fact that different stages of the analysis can be performed with different numbers of wavelet orientations. The analysis is performed for frequency sub-bands for all wave numbers and vice versa.

Abstract: Method and data processing apparatus are used to process seismic data, including pressure data and sensor-acquired acceleration or sensor-acquired velocity data as acquired simultaneously by multi-component sensors in streamers. Equivalent acceleration data is obtained from the pressure data and used as references for de-noising the sensor-acquired acceleration data.

Abstract: Computing device, computer instructions and method for improving accuracy of an image of a surveyed subsurface. The method includes a step of receiving seismic data (D) recorded with seismic sensors; a step of deghosting the seismic data (D) using a sparseT-pinversion algorithm together with a low-rank optimization scheme and a high-cut filter to calculate ghost-free wave-fields (U0(t,x,y)) in the time-space domain; and a step of processing the ghost-free wave-fields (U0(t,x,y)) to generate the image of the surveyed subsurface.

Abstract: Computing device, computer instructions and method for de-noising seismic data recorded with seismic receivers. The method includes transforming the seismic data into a Tau-P domain to generate transformed seismic data traces. The transformed seismic data traces are scaled using a semblance value to generate scaled seismic data traces. A scaled seismic data trace having a maximum energy; is selected and removed from the seismic data to generate de-noised seismic data.