9 results about "Capillary surface" patented technology

The invention discloses a dry reboiler for an isotope rectifying tower device. The dry reboiler comprises a porous thin-wall structure and a heating supporting part, wherein the heating supporting part comprises a liquid collecting surface, the porous thin-wall structure is connected with the heating supporting part and located above the liquid collecting surface of the heating supporting part, and the porous thin-wall structure is configured to provide a capillary surface for liquid to flow; liquid on the liquid collecting surface is sucked into the thin wall of the porous thin-wall structure from bottom to top through capillary force, so that gas and liquid flowing in the porous thin-wall structure are subjected to heat and mass transfer; the heating supporting part is provided with a heating rod, the heating supporting part is further configured to transfer heat to the liquid collecting surface of the heating supporting part and the porous thin-wall structure through the heating rod, and the dry type reboiler can reduce the liquid holdup and has the functions of quickly responding to load change, being compact in structure and the like, so that the production requirements of high efficiency, energy conservation and stability are met.

The invention relates to the field of image target detection, and provides a target detection model and a quartz capillary surface defect detection method, a convolutional layer with a learnable activation function is introduced into a feature extraction network of the target detection model to enhance the extraction capability of image features; the performance of a target detection model on multi-scale feature aggregation is improved by integrating a large-kernel separable attention mechanism on a pyramid pooling layer, so that richer target detail information is obtained; before cross-scale feature fusion, same-dimension small convolution processing is performed on shallow feature information to remove unnecessary redundant information and reduce model parameters, so that the detection speed is increased; a small target detection head is introduced to improve the precision of a quartz capillary detection task. According to the method, more target feature information in the image can be effectively extracted, the quartz capillary defect detection precision is improved, and the problems of missing detection, false detection and the like are solved.

The present invention discloses a method for rapidly preparing and on-line characterizing an amino-silane coating in an aqueous phase system. Under negative pressure conditions, an amino-silane buffer solution is introduced into a fused silica capillary. The process of forming Si-O-Si bonds by the bonding of Si-OR in the amino-silane molecule and Si-OH on the surface of the microchannel is utilized to achieve the preparation and real-time characterization of the amino-silane coating: the formation of the amino-silane bonded coating is characterized in real time by the change of the surface electrical signal with time during the formation of the Si-O-Si bond. The stability of the amino-silane bonded coating in the aqueous phase system is characterized in real time by the change of the chemical bond caused by the hydrolysis and cleavage of the Si-O-Si bond in the pure buffer system; the content of amino groups on the capillary surface is indirectly characterized by the change of the fluorescence intensity of the green fluorescent protein bonded and fixed by the amino-silane coating.

The application relates to an ellipsoidal single capillary lens cutting region selection method, which comprises the following steps: collecting profile data of an ellipsoidal single capillary to be cut; selecting a plurality of lens interested cutting regions according to the profile data and preset cutting data, and constructing a profile equation for each interested cutting region; solving the surface shape error of each interested cutting region based on the profile equation by using an improved cosine crow search algorithm, and updating the individual position according to Levy flight during calculation; until the surface shape errors of all the interested cutting regions are calculated, the minimum surface shape error value and the corresponding interested cutting region are output as the best cutting region. When the individual position is updated, the Levy flight is used to replace the fixed step length, the blindness of the cosine crow search algorithm is reduced, the problems that the traditional capillary cutting is prone to falling into local optimization and the convergence speed is slow are solved, and the calculation of the single capillary surface shape error is more efficient and stable.

The main object of this disclosure is to enable real-time impedimetric detection which provides greater sensitivity to scale formation in stainless steel tubes, as minimal changes on the capillary surface are detected in the form of an increase in the overall impedance of the system for systems in flow with real-time detection. Thus, the apparatus of the present disclosure includes at least one potentiostat, at least one working electrode (WE), at least one reference electrode (RE) and at least one counter electrode (CE), and at least one tube with an opening adapted to pass a fluid flow and at least two polymeric connectors at the ends, in which the working electrode is connected to the inlet of said tube.

The main object of this disclosure is to enable real-time impedimetric detection which provides greater sensitivity to scale formation in stainless steel tubes, as minimal changes on the capillary surface are detected in the form of an increase in the overall impedance of the system for systems in flow with real-time detection. Thus, the apparatus of the present disclosure includes at least one potentiostat, at least one working electrode (WE), at least one reference electrode (RE) and at least one counter electrode (CE), and at least one tube with an opening adapted to pass a fluid flow and at least two polymeric connectors at the ends, in which the working electrode is connected to the inlet of said tube.

The invention provides a tunnel fire source root fire extinguishing method which comprises the following steps: preparing and pre-burying a capillary network system: preparing high-temperature-resistant composite capillary tubes, processing gradient-distributed conical micropores in the surfaces of the capillary tubes, assembling the capillary tubes into a capillary network, and pre-burying the capillary network in a tunnel bottom plate concrete layer, a protective layer is arranged above the capillary network; fire source monitoring and positioning: monitoring the temperature field change of a tunnel floor by using a temperature sensing network pre-embedded in a capillary network, and when the temperature rise rate exceeds a preset threshold, activating a multispectral vision fire source positioning system to identify the position and range of a fire source; fire extinguishing agent injection control: according to the fire source position information, the capillary network of the corresponding area is matched, and the fire extinguishing agent injection is controlled by adopting a pulse-continuous dual-mode mode; and system maintenance and cleaning: regularly cleaning and maintaining the capillary network. The method is deeply fused with a tunnel structure, and the root of a fire source can be rapidly inhibited.

The invention relates to the field of capillary size calculation, and discloses a capillary geometric size calculation method, which comprises the following steps: S1, image positioning: finding the position of a capillary, and determining the center coordinate of an image and the range of subsequent measurement; s2, image binarization processing: respectively carrying out binarization processing on the outer circle and the inner circle; for an outer circle, a gray value is collected from the periphery to serve as a low threshold value of binaryzation; and an inner circle: calculating the boundary coordinates of the inner circle, obtaining the brightness and average brightness information at the boundary, obtaining the brightness information in the image, and calculating the binarized high threshold and the geometric dimension of the binarized image. By introducing a multi-point fitting algorithm, selecting a plurality of reference points on an inner circle and an outer circle, utilizing different fitting strategies, integrating results of multiple times of fitting, removing abnormal values and finally selecting an optimal solution, the method can effectively reduce measurement errors caused by image noise or irregular capillary surfaces, and the accuracy of the measurement is improved. Therefore, the reliability and stability of the fitting result are ensured.

The application discloses a dry reboiler for an isotopic rectification tower device, comprising: a porous thin-wall structure and a heating support part; wherein the heating support part comprises a liquid collection surface, the porous thin-wall structure is connected with the heating support part and is located above the liquid collection surface of the heating support part, the porous thin-wall structure is configured to provide a capillary surface for liquid flow, and liquid located on the liquid collection surface is sucked into the thin wall of the porous thin-wall structure from bottom to top by capillary force, so that heat and mass transfer of gas and liquid flowing in the porous thin-wall structure are realized; the heating support part is equipped with a heating rod, and the heating support part is further configured to transfer heat to the liquid collection surface of the heating support part and the porous thin-wall structure through the heating rod; the dry reboiler can reduce the liquid holdup, has the functions of quick response to load change, compact structure and the like, and thus meets the production requirements of high efficiency, energy saving and stability.