9results about How to "Effective convergence" patented technology

The utility model provides a heliostat mirror frame, include: main girder, set up first support layer on main girder, the second support layer who is configured for bearing sub mirror, second support layer includes a plurality of second support frame interval setting on first support layer, and at least two second support frames form a sub mirror mounting area for bearing sub mirror, at least part second support frame's length is different, and / or, at least part second support frame's extension direction is different to form different sub mirror mounting area. The utility model provides technical scheme to design to a plurality of second support frame length and extension direction, make a plurality of sub mirror mounting area formed by a plurality of second support frame have at least part difference, and then make a plurality of sub mirror mounting area can be according to actual demand and splice the heliostat of different contour and install splice out different shape contour, be favorable to according to actual environment and other factors more accurately design and control the focusing effect of heliostat, improve photo-thermal conversion efficiency.

The utility model discloses rapid deicing equipment after nuclear magnetic resonance quenching, and relates to the field of nuclear magnetic resonance structure maintenance equipment, the rapid deicing equipment after nuclear magnetic resonance quenching comprises a heating piece and an accelerating piece, the heating piece is provided with a gas inlet and a gas outlet, gas enters the heating piece through the gas inlet, the heating piece heats the gas, and the accelerating piece accelerates the heating of the gas. The heated gas is discharged through the gas outlet; the heating part is connected with the gas outlet through a pipeline, the accelerating part is connected with the gas outlet through a pipeline, the accelerating part is communicated with the gas outlet through a pipeline, the gas is accelerated through the accelerating part, and'ice blocks' in the nuclear magnetic resonance equipment can be effectively removed through the heating part and the accelerating part.

The invention discloses a pumping ring structure-based active optical fiber with high pumping conversion efficiency and an amplifier structure, and relates to the field of active optical fibers and optical fiber amplifiers, the pumping ring structure-based active optical fiber comprises a layered structure which is sequentially arranged from inside to outside, and the layered structure comprises a fiber core, a pumping ring structure, a quartz cladding and a coating layer, the optical fiber is located at the geometric center of the active fiber; the pumping ring structure is arranged around the fiber core and is used for guiding and converging pumping light to gather towards a fiber core area, the pumping ring structure is composed of one or more layers of concentric annular modulation areas, and the refractive indexes of all the layers of modulation areas are gradually increased layer by layer from outside to inside in the radial direction; according to the active optical fiber and amplifier structure, one or more layers of concentric pumping rings with refractive indexes gradually increased layer by layer from outside to inside are arranged in the cladding, and the concentration degree and energy density of pumping light towards a fiber core area can be remarkably improved to a certain extent by utilizing the guiding effect of refractive index gradients on a pumping light propagation path; therefore, higher pumping absorption efficiency and gain performance are realized.

The embodiment of the present specification provides an optical sensor. The optical sensor comprises a microlens array composed of at least two microlenses and a sensor chip; the sensor chip is provided with photosensitive elements corresponding to the microlenses respectively; the microlens converges the light irradiated to the microlens to the photosensitive element corresponding to the microlens; the microlenses in the microlens array located at different field positions on the sensor chip have different lens structures, so as to improve the ratio of the illumination intensity of the light received by the photosensitive element corresponding to the microlens at the edge position to the illumination intensity of the light received by the photosensitive element corresponding to the microlens at the center position; and the photosensitive element is used for generating a corresponding photosensitive electrical signal according to the illumination intensity of the received light. The above-mentioned optical sensor improves the relative illumination of the array as a whole, and further improves the presentation effect of the finally obtained image.

The invention provides a plant leaf chloroplast three-dimensional imaging axial resolution enhancement method and system, and the method comprises the steps: constructing an in-vitro model sample through fluorescent microspheres, and the in-vitro model sample comprises a non-scattering true value image and an axial stretching distortion image caused by scattering of the same visual field imaging; pre-training the deep learning network by using the in-vitro model sample, and establishing a pre-training model; constructing a plant real sample of plant leaf chloroplast, and training the pre-training model to obtain an axial resolution enhancement model; and inputting a to-be-processed chloroplast three-dimensional fluorescence image collected in a complete leaf into the axial resolution enhancement model, and outputting a chloroplast image used for accurate three-dimensional reconstruction after axial resolution enhancement. According to the method, hardware does not need to be transformed, the axial deformation of the plant leaf chloroplast in three-dimensional imaging is specifically corrected through an innovative training data preparation strategy and supervised deep learning, and the real three-dimensional form of the chloroplast is recovered.

The invention relates to the technical field of geotechnical engineering and artificial intelligence crossing, and discloses a grouting data enhancement method and system for an improved table generative adversarial network, and the method comprises the steps: obtaining grouting table data, carrying out the preprocessing, obtaining the preprocessed grouting table data, and generating a condition vector; processing the preprocessed grouting table data and the condition vector by using a data enhancement model; outputting the synthesized grouting table data and the authenticity judgment result; training a generator module and a discriminator module by using a loss function according to the authenticity discrimination result, respectively configuring learning rate adaptive schedulers for the generator module and the discriminator module, and adjusting the learning rate according to the loss change; and based on the trained data enhancement model, generating enhanced grouting table data and performing similarity evaluation. A small sample grouting data set can be effectively expanded, and sufficient training samples are provided for a data-driven grouting parameter prediction model.

This invention relates to a low-frequency receiving antenna based on a gradient metamaterial with critical coupling, belonging to the field of low-frequency magnetic induction communication technology. The low-frequency receiving antenna includes: a receiving coil connected in series with a capacitor and connected to a receiver load via the capacitor; and a gradient metamaterial composed of multiple concentric resonant units with size gradients, each resonant unit consisting of a coil and a capacitor connected in series to form an independent resonant circuit. The receiving coil and the gradient metamaterial are concentrically nested, with the receiving coil located on the innermost side. This invention's low-frequency receiving antenna achieves matching between the antenna output impedance and the receiver load by precisely controlling the coupling strength between the gradient metamaterial and the receiving coil, as well as the capacitor configuration parameters. Simultaneously, the wide spacing between adjacent coils significantly reduces proximity losses. With the optimal combination of impedance matching and loss performance, the antenna reaches a critical coupling state. Combined with the increasing equivalent permeability distribution from the outside to the inside formed by the gradient metamaterial, it effectively converges low-frequency magnetic fields, improving the pickup capability of weak low-frequency electromagnetic signals. This invention maintains a compact size for the low-frequency antenna while possessing high receiving sensitivity, making it suitable for low-frequency magnetic field communication and detection in complex environments such as underwater and underground.

This utility model discloses a ventilation window guide hood for livestock, including a connecting sleeve and a guide plate. The connecting sleeve has multiple connecting through holes for fixing. The guide plate is located on the front side of the connecting sleeve and includes a central converging plate, a connecting transition plate, an open guide plate, and side plates. The central converging plate is located in the middle of the entire guide plate and extends upward and forward at an angle. The connecting transition plate and the open guide plate are connected to both sides of the central converging plate from back to front. The connecting transition plate is inclined downward and forward, and the open guide plate is inclined upward and forward. The side plates are fixedly connected to the ends of the connecting transition plate and the open guide plate. This utility model has a simple structure, is quick to install, requires no subsequent debugging, and has a wide range of applications. It can effectively gather fresh air, ensuring that even when the ventilation window is opened at a very small angle, fresh air can flow to a farther area through the central air-gathering jet area of ​​the guide hood, achieving an ideal ventilation effect.

The invention discloses a carrier speed estimation method and device based on a millimeter wave radar, and a storage medium, and relates to the technical field of carrier speed estimation. The method comprises the following steps: firstly, carrying out interference suppression processing on a distance-velocity spectrum matrix to obtain an interference suppression spectrum matrix; the first path performs velocity dimension energy aggregation on the interference suppression spectrum matrix to generate a static background energy distribution spectrum and determine a first velocity estimation value according to the static background energy distribution spectrum; a second path screens and verifies an effective ground reflection target from the interference suppression spectrum matrix, and a second speed estimation value is obtained by combining the pitch angle of the effective ground reflection target; and finally, respectively carrying out time sequence filtering and weighted fusion on the outputs of the two paths, and outputting the final carrier speed. According to the method, the problem that a traditional point cloud method fails in an open scene is fundamentally solved, and the robustness, accuracy and stability of a spectrum analysis method in a complex interference environment are remarkably improved.