Abstract: A microprocessor includes a cryptographic engine, M buffer units, and a controller. The cryptographic engine is configured to execute cryptographic algorithms. The M buffer units are configured to cache data required by an access request of a corresponding execution environment. M is an integer greater than or equal to 1. The controller is connected to the cryptographic engine and the M buffer units. The controller is configured to receive the access request from a first execution environment and instruct the cryptographic engine to execute the cryptographic algorithm requested by the access request using the required data cached by the buffer unit corresponding to the first execution environment from which the access request comes. The access request is used to access the cryptographic engine to execute a cryptographic algorithm. The first execution environment is one execution environment among N execution environments. N is an integer greater than or equal to 1.

Abstract: A method for preventing a differential cryptanalysis attack is provided. The method is implemented by an adaptive scan chain, a control module, and a plaintext analysis module. The plaintext analysis module controls the adaptive scan chain, so that two plaintexts differing in the last bit of only one byte are input through scan chains with different structures. Consequently, the two input plaintexts for which differential cryptanalysis attack technology originally can be used to crack the key are unable to generate outputs that can be used by the differential cryptanalysis attack technology.

Abstract: A method for preventing a differential cryptanalysis attack is provided. The method is implemented by an adaptive scan chain, a control module, and a plaintext analysis module. The plaintext analysis module controls the adaptive scan chain, so that two plaintexts differing in the last bit of only one byte are input through scan chains with different structures. Consequently, the two input plaintexts for which differential cryptanalysis attack technology originally can be used to crack the key are unable to generate outputs that can be used by the differential cryptanalysis attack technology.

Abstract: A server receives article information of an article to be estimated from a user. The server obtains an actual picture of the article from the user. The server determines a standard picture of the article from a predetermined graphics library based on the article information. The server obtains an actual performance of the article. The server determines a value of the article based on the standard picture, the actual picture, and the actual performance of the article.

Abstract: A method of forming an oxide layer includes: providing a substrate; forming an oxide film structure: introducing hydrogen into a reaction environment, introducing oxygen, and forming the oxide film structure on a surface of the substrate; performing annealing treatment: introducing compensation gas into the reaction environment, and performing pulse annealing treatment on the oxide film structure to form an oxide layer film; and repeating at least two cycles including the above steps to form at least two oxide layer films stacked on the surface of the substrate so as to form the oxide layer.

Abstract: A narrow pulse generation circuit used in a sequential equivalent sampling system. The circuit comprises a crystal oscillator, an edge sharpening circuit, an avalanche transistor single-tube amplifying circuit and a shaping network connected in sequence, wherein the edge sharpening circuit is used for carrying out edge sharpening on a square wave signal generated by the crystal oscillator; the avalanche transistor single-tube amplifying circuit is used for carrying out avalanche amplification on the sharpened square wave signal to generate a Gaussian pulse signal to adjust the amplitude of a pulse; and the RC shaping network is used for shaping the Gaussian pulse signal to adjust the pulse width at the bottom of the pulse to form a narrow pulse signal. The narrow pulse circuit has a simple structure and narrow pulse width at the bottom and facilitates increasing a signal-to-noise ratio of a whole sequential sampling system.

Abstract: An ultra-wideband ground penetrating radar control system, comprising a synchronous clock generating circuit, a GPS positioning module, a measuring wheel encoder module, a digitally controlled delay circuit for equivalent sampling, an analog-to-digital conversion (ADC) circuit, and a main controller. The synchronous clock generating circuit, the GPS positioning module, the measuring wheel encoder module, the digitally controlled delay circuit and the ADC circuit are all connected to the main controller. The synchronous clock generating circuit is further connected to an external ultra-wideband radar transmitter. The digitally controlled delay circuit is further connected to an external sampling pulse generation circuit for equivalent sampling. The ADC circuit is further connected to an external sampling gate for equivalent sampling. The main controller is further connected to an external server via Ethernet. The volume of an ultra-wideband ground penetrating radar control system is reduced.

Abstract: A narrow pulse generation circuit used in a sequential equivalent sampling system. The circuit comprises a crystal oscillator, an edge sharpening circuit, an avalanche transistor single-tube amplifying circuit and a shaping network connected in sequence, wherein the edge sharpening circuit is used for carrying out edge sharpening on a square wave signal generated by the crystal oscillator; the avalanche transistor single-tube amplifying circuit is used for carrying out avalanche amplification on the sharpened square wave signal to generate a Gaussian pulse signal to adjust the amplitude of a pulse; and the RC shaping network is used for shaping the Gaussian pulse signal to adjust the pulse width at the bottom of the pulse to form a narrow pulse signal. The narrow pulse circuit has a simple structure and narrow pulse width at the bottom and facilitates increasing a signal-to-noise ratio of a whole sequential sampling system.

Abstract: The present specification provides an article damage detection method, including: obtaining at least two images that are time sequentially related and show a detected article at different angles; and inputting the images to a detection model in time order, to determine a damage detection result, where the detection model includes a first sub-model and a second sub-model, the first sub-model identifies respective features of each image, a feature processing result of each image is input to the second sub-model, the second sub-model performs time series analysis on the feature processing result to determine the damage detection result, and the first sub-model and the second sub-model are obtained by performing joint training by using training samples labeled with article damage.

Abstract: The present specification provides methods, apparatuses, and devices for detecting damages to an article. In one aspect, the method includes: obtaining at least two images that are time sequentially related and show the article at different angles; providing the at least two images as input to a detection model in time order, wherein the detection model comprises a first sub-model and a second sub-model that have been jointly trained on training samples associated with labels indicating respective article damage degrees; processing the at least two images using the first sub-model to determine a feature processing result based on respective features identified from each image; processing the feature processing result using the second sub-model to perform time series analysis on the feature processing result to determine a damage detection result; and obtaining, as output from the detection model, the damage detection result.

Abstract: A credit-based claim settlement implementing method comprises receiving a claim settlement request from a user terminal of a user. In response to receiving the claim settlement request, the method further comprises: determining credit information of the user; when the credit information of the user satisfies a credit constraint condition, prompting the user to upload images of claim settlement materials from the user terminal; detecting, using a living body detection technology, whether uploading the images of claim settlement materials is performed by uploading a photograph taken in real time from the user terminal; in response to detecting that uploading the images of claim settlement materials is performed by uploading a photograph taken in real time from the user terminal, determining whether the claim settlement materials are authentic; and in response to determining that the claim settlement materials are authentic, determining a claim settlement amount based on the claim settlement materials.

Abstract: A server receives article information of an article to be estimated from a user. The server obtains an actual picture of the article from the user. The server determines a standard picture of the article from a predetermined graphics library based on the article information. The server obtains an actual performance of the article. The server determines a value of the article based on the standard picture, the actual picture, and the actual performance of the article.

Abstract: A heel protection method and device for the protection of heel ulcers includes an inflatable bladder adapted to be positioned adjacent a calf of a patient and a sensor adapted to be positioned adjacent a heel of the patient for detecting pressure at the heel. A microprocessor is adapted to receive a signal related to pressure at the heel, from which it determines whether an allowable level has been exceeded. If an excessive pressure level is sensed, the microprocessor transmits a signal to a separate device that alerts the caregiver to inflate the inflatable bladder or automatically by way of a pump operatively connected to the microprocessor. The method and device avoids excessive pressure at the heel by sensing the pressure at the heel, and redistributing the pressure from the heel to the calf if an allowable pressure level has been exceeded.