13results about How to "Significant difference" patented technology

The invention relates to a fetus anatomical structure small sample detection method and device based on an ultrasonic image, computer equipment, a storage medium and a computer program product, and the method comprises the steps: obtaining an initial deep learning model and a standard ultrasonic image of a fetus; performing feature extraction to obtain a feature map; based on the feature map, a first classification score is obtained through a DAEFLM module and a first portion head in an initial deep learning model; based on the feature map, a fusion feature map containing multi-topology information is obtained through a TKRM module; according to the fused feature map, obtaining a second classification score and a detection frame through a second detection head in the initial deep learning model; performing weighted summation on the first classification score and the second classification score; constructing a standard Faster-RCNN loss function according to the target classification score, a classification result corresponding to the standard ultrasonic image and the detection frame; adjusting model parameters of the initial deep learning model; and performing fetal anatomical structure small sample detection according to the target deep learning model.

The invention discloses a distance sensor module, equipment and a distance measuring method. The distance sensor module comprises a light source part which emits an irradiation light spot to an object to be measured; the light shaping part is arranged on the side, facing the to-be-measured object, of the light source part, and the light shaping part changes the irradiation light spot into a linear light spot; the receiving part and the light source part are arranged on the same plane, and the light receiving side of the receiving part faces the object to be detected; the first focusing lens is arranged on one side, facing the to-be-measured object, of the receiving part; the light source part, the light shaping part, the receiving part and the first focusing lens are all arranged in the shell. The distance sensor module can achieve the purpose of distance measurement by reducing the internal structure, is simple in structure, and can improve the quality of a light source emitted by the light source part through the arrangement of the first focusing lens and the light shaping part, thereby improving the measurement precision of the distance sensor module.

The present disclosure relates to a medical device. The medical device comprises a matrix and a first coating coated on the matrix. The matrix contains a metal element X having a content of ≥5wt%; the first coating is at least one of an elemental metal layer of the metal element X, an alloy layer of the metal element X, and a metal-ceramic layer of the metal element X; and the first coating does not contain nickel and cobalt. The medical device has good use safety, reliability, and biocompatibility, so that a product can meet a use requirement of large plastic deformation, and has good reliability during use. The medical device can particularly meet requirements of product with large plastic deformation during use, such as medical implant devices.

Embodiments of the disclosure provide a data receiving circuit, a data receiving system and a storage apparatus. The data receiving circuit includes: a first amplification module, configured to receive a data signal, a first reference signal and a second reference signal, perform first comparison on the data signal and the first reference signal to output a first signal pair, and perform second comparison on the data signal and the second reference signal to output a second signal pair; a decision equalization enable module, configured to receive an enable signal and a feedback signal, and output a control signal, where the enable signal has a first level value period, a level value of the control signal varies with a level value of the feedback signal, the enable signal has a second level value period, and the level value of the control signal is a fixed value; and a second amplification module, configured to receive the first signal pair or the second signal pair based on the control signal, and output a first output signal and a second output signal. According to the embodiments of the disclosure, the power consumption of the data receiving circuit can be at least reduced while the receiving performance of the data receiving circuit is improved.

The application discloses a dCAPS molecular marker for amplifying a SNP site of a QTL of wheat scab and application thereof in the technical field of molecular biology, is located on the long arm of chromosome 5B of a wheat Chinese spring reference sequence, and a primer pair comprises a forward primer and a reverse primer, and the nucleotide sequences of the forward primer and the reverse primer are shown as SEQ ID NO. 1-2. The molecular marker is closely linked to scab resistance in the application, has high diagnostic accuracy, and can be widely used in assisted breeding of wheat resistant to scab.

The application provides a method for predicting overwintering rate and cold resistance of Brassica napus, and belongs to the technical field of rape cultivation. The method comprises the following steps: sowing seeds of Brassica napus to be evaluated in a field; in early December, after the minimum temperature in the field is lower than-4 DEG C and lasts for 5-10 days, the key indicators of Brassica napus are determined; the determined key indicators are substituted into a regression equation of a linear regression model to calculate the predicted overwintering rate of Brassica napus; and the cold resistance of Brassica napus is identified according to the obtained predicted overwintering rate. Compared with the traditional natural overwintering identification, the application can obtain the predicted overwintering rate by only determining 7 key indicators once before winter, and complete the cold resistance grading evaluation, so that the identification period is shortened.

The invention belongs to the technical field of lithium ion batteries, and particularly discloses a device for quickly detecting the coverage rate of a sprayed diaphragm on line, which comprises an image acquisition unit, a lighting unit, an image processing unit, a data transmission unit and a control terminal. According to the device and the method for rapidly detecting the coverage rate of the sprayed diaphragm on line, the coverage rate of the sprayed diaphragm can be rapidly and accurately detected on line, the production efficiency and the product quality are improved, and a reliable quality control means is provided for manufacturing of a lithium ion battery.

A heat spreader and an illumination device including the heat spreader are disclosed. The heat spreader includes a first substrate and multiple first heat dissipation fins, the multiple first heat dissipation fins are arranged side by side on the first substrate at intervals in a first preset direction, and the heat spreader meets constraints of the following Relational expression 1: N∈{L / [ δ+9], L / [ δ+9]+2} and H∈δ1+δ2 / 2−1.2 / tan2θ,δ1+δ2 / 2+1.2 / tan2θ.L represents a length of the first substrate in the first preset direction, δ represents a weighted average thickness of the multiple first heat dissipation fins, N represents a distribution number of the first heat dissipation fins, δ1 represents a maximum thickness of the first heat dissipation fin, δ2 represents a minimum thickness of the first heat dissipation fin, θ represents a draft angle of the first heat dissipation fin, and H represents a distribution height of the first heat dissipation fin.

The present invention provides an electronic expansion valve, which includes: a valve body having an accommodating cavity and a valve port, and the valve port communicates with the accommodating cavity; a guide sleeve, which is disposed in the accommodating cavity; a valve head, which is movably disposed in the guide sleeve and configured for blocking or opening the valve port, and a balance channel is disposed in the valve head so as to enable two ends of the valve head to be communicated; the valve head has a first end and a second end which are oppositely disposed, the first end is configured for blocking the valve port, a refrigerant medium and the first end have a first stress area S1, the refrigerant medium and the second end have a second stress area S2, and -1.3 mm2≤S1-S2≤1.3 mm2. Through the technical solution provided by the present invention, the problem that the reliability of action of an electronic expansion valve in the relevant art is poor may be solved.

The invention discloses a garbage collection method, device and equipment for a solid state disk and a readable storage medium, and belongs to the field of solid state disks. The residual survival duration of effective data can be determined, and then a target data block corresponding to a duration interval where the residual survival duration of the effective data is located is determined; then, the valid data can be migrated to the target data block, on one hand, the probability of garbage collection of the target data block storing the valid data with the longer remaining survival duration is reduced, and on the other hand, the probability of garbage collection of the target data block storing the valid data with the shorter remaining survival duration is reduced even if garbage collection is carried out on the target data block storing the valid data with the shorter remaining survival duration. And the failure time of the effective data in the solid state disk is close, so that the effective data needing to be moved is less, and the write amplification effect of the solid state disk is also reduced.

Disclosed are digital color matching and dyeing methods and color matching and dyeing systems for pure color dyeing of fabrics. The digital color matching method includes steps of pre-establishing a digital color matching system, obtaining LAB values of a target sample color, searching a color database, obtaining a recommended ink formula, comparing formulas, etc. The color matching system includes a color measurement probe unit, a storage unit, a data processing unit, and a multi-ink path scanning printing unit. The digital dyeing method includes digital color matching, preparation of ink for ink jet dyeing, and fixed single-channel ink jet dyeing. The digital dyeing system is mainly composed of a digital color matching system, an ink mixing module, and a fixed single-channel digital ink jet module. The present invention has advantages of traditional dyeing processes and digital printing, such as cleanness, fastness, complete matching in colors of printing samples and large-scale production, wide color gamut, very good uniformity, and same depth and hue as traditional dyeing.

The invention relates to a heap-spray attack detection method based on deep learning and visualization, and belongs to the field of network security. The method comprises the following steps: acquiring memory allocation of a specified application program, carrying out visual preprocessing on process memory data, and carrying out classification detection on a generated image by utilizing a trained heap-spray attack detection model; the method comprises the following specific steps: modifying a GRAFFITI monitoring framework, adding a memory dump function, and executing a memory dump operation when process memory allocation exceeds a preset threshold value; converting the dumped binary file into an RGB image and an entropy grayscale image; carrying out feature extraction on the two types of images by adopting an improved VGG16 model, effectively fusing the extracted features through an attention mechanism, and then carrying out detection and classification; when it is judged that the process is subjected to the heap-spray attack, the system prompts a user with a pop-up window; according to the method, the heap-spray attack behavior in the process can be effectively identified, the defects in coping with different attack variants in the prior art are overcome, and the information security protection capability is improved.

A hydrogen production apparatus of the present disclosure includes: a gas supply unit that supplies a first hydrogen-containing gas containing hydrogen; a first electrochemical device having a first anode side inlet to make the first hydrogen-containing gas flow in and a first cathode side outlet to make a second hydrogen-containing gas having a higher concentration of hydrogen than the first hydrogen-containing gas flow out; and a second electrochemical device having a second anode side inlet to make the second hydrogen-containing gas flow in and a second cathode side outlet to make a third hydrogen-containing gas having a higher concentration of hydrogen than the second hydrogen-containing gas flow out. It is configured such that the ratio of the pressure value of the third hydrogen-containing gas at the second cathode side outlet to the pressure value of the second hydrogen-containing gas at the second anode side inlet is higher than the ratio of the pressure value of the second hydrogen-containing gas at the first cathode side outlet to the pressure value of the first hydrogen-containing gas at the first anode side inlet.