8results about How to "Increase distribution density" patented technology

The utility model discloses a circuit board structure for improving parallel walking line signal crosstalk in a ball grid array (BGA), which comprises a BGA area arranged on a circuit board, a plurality of parallel walking lines are arranged in the BGA area, each pair of parallel walking lines is provided with a periodically distributed wiring optimization area, and the wiring optimization areas are used for expanding the distance between the parallel walking lines. According to the utility model, periodic spacing optimization processing is carried out on the parallel lines in the BGA area, electromagnetic coupling effects are dispersed, continuous interference accumulation of long-distance parallel lines is avoided, the density of the lines is maintained, electromagnetic interference and crosstalk between signal lines can be optimized and improved, signal noise is reduced, and a line layer does not need to be increased.

The invention relates to the technical field of remote sensing image fine-grained target detection, in particular to a two-way guided remote sensing image fine-grained target detection method. Comprising the steps of 1, acquiring image data, and dividing the image data into a training set and a test set; 2, constructing a target detection network, and obtaining image multi-scale features from the preprocessed image through a feature extraction network; then, a coarse-grained detector screens out a target candidate area and judges whether the target candidate area is a foreground or a background; then, a fine-grained detector carries out finer classification and positioning on the candidate areas; and step 3, carrying out performance evaluation on the test set so as to test the detection capability of the model on the fine-grained target in an actual scene. According to the method, for the problems of class sample imbalance and easy confusion of fine-grained classes in fine-grained target detection, the remote-sensing image fine-grained target detection capability is effectively improved by constructing a layered detection network architecture and combining an instantaneous confidence coefficient signal and class accumulation learning quality.

This invention relates to the field of cleaning device technology, specifically to a milling copper shavings recycling device, including a splash guard, and further comprising: a material guiding section, including two symmetrically arranged material guiding plates disposed below the splash guard, with multiple vibrating units mounted on the material guiding plates; and a cleaning section, including a bearing assembly disposed below the material guiding port of the material guiding plates, with cleaning components mounted on the bearing assembly. The material guiding section reduces the adhesion of untreated copper shavings, and the material guiding plates and vibrating units can gather the copper shavings to the bearing assembly, increasing the distribution density of copper shavings in the bearing assembly and facilitating improved cleaning efficiency of the cleaning components. The cleaning frame in the cleaning components can rub the copper shavings with rollers, which helps to remove impurities from the surface of the copper shavings and improve cleaning quality. In this device, the vibrating units can cooperate with the transmission assembly to make the vibrating plates continuously reciprocate, thereby providing effective vibration force to shake off the copper shavings.

This utility model discloses a mattress fabric, comprising, from the outside to the inside, a surface layer, an air layer, and a bottom layer, with an air layer formed between the surface layer and the bottom layer. The surface layer includes a first longitudinal stripe area and a second longitudinal stripe area. The first longitudinal stripe area has a cyclically arranged breathable unit and a connecting area. Each breathable unit includes two parallel first breathable holes and one second breathable hole, which are arranged alternately along the length of the fabric. This utility model adds surface breathable holes to the original air layer through fiber weaving, increasing the direct airflow path between the mattress fabric layer and the filling layer, thereby reducing moisture accumulation. Furthermore, the cyclic arrangement of the first and second breathable holes increases the density of the breathable holes, maintaining uniform airflow. Simultaneously, the thickness of the air layer allows air to circulate within the fabric layer.

This invention relates to the field of mine water hazard prevention and control technology, and provides a method for efficient drainage of water accumulation in goaf areas affected by repeated mining of multiple coal seams in close proximity. The method includes the following steps: conducting surface geophysical exploration of the prevention and control area and collecting mining information of the coal seams in the goaf; delineating abnormal water accumulation areas and low-lying areas within the prevention and control area; deploying water level monitoring holes and surface drainage holes in the abnormal water accumulation areas and low-lying areas; designing and constructing underground directional boreholes to ensure that the trajectory of the underground directional boreholes covers the abnormal water accumulation areas and low-lying areas; and performing through-hole drilling on the underground directional boreholes until the water output of each underground directional borehole drops to a target value. The following describes the process of testing the drainage effect in the prevention and control area. This invention, through ground geophysical exploration of the prevention and control area and combined with collected information on the recovery of coal seams overlying the goaf, can accurately delineate areas of abnormal water accumulation and low-lying terrain. By deploying water level monitoring boreholes and surface drainage boreholes within the delineated key areas, it not only achieves real-time monitoring of groundwater levels in these areas but also enables simultaneous drainage both above and below ground. Furthermore, by designing and constructing directional boreholes underground, ensuring their trajectory covers areas of abnormal water accumulation and low-lying terrain, it can more directly and effectively prevent water accumulation in the goaf overlying coal seams of the target area.

The utility model provides a storage device with low delay characteristic, include: a plurality of selection transistor, a plurality of floating gate transistor, a plurality of floating gate transistor respectively with bit line and word line electric nature connection, wherein a plurality of floating gate transistor respectively with corresponding selection transistor electric nature connection, and with the form of storage unit integrated in same flash memory chip, and floating gate transistor includes control grid, source electrode and drain electrode, wherein control grid and word line electric nature connection, any electrode in source electrode or drain electrode is in floating state, and another electrode electric nature connection is in bit line, and main controller is electrically connected with host computer and flash memory chip, and according to the instruction random access any storage unit of host computer. The utility model can provide high density and high reliability storage space under the premise of not using error correction related technology.

The invention relates to the technical field of production of non-oriented electrical steel, in particular to non-oriented electrical steel with excellent punching performance and a production method, and the non-oriented electrical steel comprises the following chemical components in percentage by weight: less than or equal to 0.002% of C, 0.50%-1.50% of Si, 0.5%-1.5% of Mn, 0.005%-0.015% of Te, 0.001%-0.003% of Ca, 0.005%-0.015% of RE, 0.01%-0.05% of S, less than or equal to 0.002% of N, 0.20%-0.60% of Als and the balance of Fe and inevitable residual elements. Wherein RE comprises Ce and La; the method has the beneficial effects that on the premise that the optimized magnetic performance is maintained, the punching burr height is remarkably reduced, the service life of a die is prolonged, the punching sheet section smoothness and the punching sheet qualification rate are improved, and therefore the overall performance of a motor is optimized.

This utility model relates to the field of pipeline device technology and discloses a porous pipeline device for sewage aeration. The porous pipeline device includes a sewage tank, on which a decontamination mechanism is installed. The decontamination mechanism includes an air inlet pipe. To improve the filtration effect of the aeration gas, this porous pipeline device for sewage aeration incorporates a decontamination mechanism. When the gas enters the gas collection box from the air inlet pipe, it undergoes further fine filtration with the help of coarse and dense filter plates. Multiple sets of branch pipes increase the distribution density of the exhaust ports and the gas discharge area. Simultaneously, the filter screen breaks the gas into multiple small bubbles, allowing the gas to contact the sewage over a wider range and at more angles, thereby improving the gas-liquid mixing effect. Furthermore, the conical design of the conical shroud prevents impurities in the water from adhering and accumulating near the top of the branch pipes; instead, they slide off along the slope under the action of water flow, ensuring stable operation of the device.