13results about How to "Highlight significant progress" patented technology

The invention relates to a chemoenzymatic synthesis method of a high-glucose-type homogeneity mucoprotein core structural domain. The method comprises the following steps: firstly, catalytically synthesizing a key alpha-linked glycosylated amino acid block Fmoc-GalNacalpha-Ser / Thr-OH at a low temperature (-20 DEG C to 0 DEG C); then assembling the building blocks on a repeated polypeptide skeleton rich in proline, serine and threonine at accurate intervals (3-5 amino acid residues) through a solid-phase peptide synthesis technology to form a'sugar chain growth scaffold '; then, a series of high-specificity glycosyl transferases are used for carrying out sequential and directional sugar chain enzymatic extension on the scaffold, and a uniform core structure (such as a core type 3) is constructed; and finally, performing high-efficiency purification by a three-step series method of size exclusion chromatography, ion exchange chromatography and lectin affinity chromatography. The technical bottleneck of inhomogeneity (lt, 70%) of glycoforms in a traditional method is overcome, the mucoprotein core fragment with glycoform homogeneity larger than or equal to 95% and bioactivity highly similar to that of natural mucoprotein can be prepared on a large scale, and the method has wide application prospects in the biomedical fields of mucous membrane protective agents, drug delivery carriers and the like.

An integrated architecture system for dual-indirect heat pump thermal management in pure electric vehicles based on R290. Currently, most pure electric vehicles have low integration levels in their thermal management systems. Typically, the battery pack circuit and air conditioning circuit are connected in parallel through a heat exchanger, while the motor and electronic control cooling circuit is an independent circuit. This results in too many system components, occupying a large amount of engine compartment space, and lacking a standardized and precise processing structure. In this invention, one end of the radiator is connected to the second refrigeration device, and a first valve body is provided between the radiator and the second four-way valve. The other end of the radiator is a double-ended connection end, which is sequentially connected to one end of the second refrigeration device through the fourth inlet / outlet and the second inlet / outlet of the second four-way valve. A third valve body is provided between the double-ended connection end of the radiator and the second four-way valve. The other end of the second refrigeration device is connected to the first inlet / outlet of the second four-way valve. The double-ended connection end of the radiator is sequentially connected to the fourth inlet / outlet of the second four-way valve through a drive motor, an electronic control unit, and a second water pump.

The application provides a high bulk natural color medical hand paper prepared from mechanical pulp and BCTMP and a preparation process, and relates to the technical field of household paper preparation. The application is aimed at solving the problems of high residual risk and poor bulk of existing bleached medical hand paper, unbalanced bulk performance, serious powder loss, lack of medical exclusive process, and insufficient safety of additives of natural color medical hand paper. The application adopts a ternary non-bleaching fiber compounding system of natural color broadleaf wood BCTMP, natural color mechanical pulp and natural color coniferous wood chemical pulp, constructs a double steady-state pre-control system of fiber conditioning pretreatment and pulp low-temperature curing, and adopts a low-damage coupling process of step-by-step additive addition, gradient gentle dewatering, low-pressure and low-temperature pressing, gradient low-tension drying and precise micro-creping to retain the three-dimensional bulk structure of the paper and strengthen the fiber bonding force. The application breaks the traditional performance balance problem, and the finished product has excellent bulk, dry and wet strength, low powder loss rate, no bleaching, less additive residue, safety and cleanliness, and is suitable for high-end medical scenes such as operating rooms and clean wards.

This invention discloses an airport photovoltaic design method and system based on three-dimensional airspace constraints, which relates to the field of airport photovoltaic engineering technology. S1: Collect legal airspace control data of the target airport, site topography data, flight parameters, and regional annual meteorological and solar radiation data. Based on the collected multi-source data, construct a three-dimensional airspace constraint surface model of the airport, fully integrating four types of core airspace constraint boundaries within the airport: horizontal plane, conical surface, approach surface, and takeoff / climb surface, achieving a three-dimensional quantitative definition of the airspace constraint range. This airport photovoltaic design method and system based on three-dimensional airspace constraints is the first to deeply couple the airport's three-dimensional airspace constraint surface with photovoltaic design, abandoning the traditional two-dimensional uniform height restriction model. It constructs a full-space quantitative model based on the four types of core airspace constraint surfaces, representing a novel technical solution not disclosed in existing technologies, with significant design characteristics specific to airport scenarios.

The invention provides a CMAS corrosion resistant material with stable phase, the CMAS corrosion resistant material is solid solution ceramic, the molecular formula of the solid solution ceramic is (Zr1-x-yHfx) TayO2 + 0.5 y, x is greater than 0.4 and greater than 0.1, and y is greater than 0.4 and greater than 0.1. By doping the elements Hf and Ta, the high-temperature phase change of ZrO2 is inhibited, the high-temperature stability of (Zr1-x-yHfx) TayO2 + 0.5 y is enhanced, and meanwhile, the melting point and CMAS corrosion resistance of the material are improved. Meanwhile, the invention also provides a preparation method of the material.

This utility model discloses an engine cylinder head and its electronic fuel injection system, including a cylinder head body. The cylinder head body has an intake manifold, an exhaust manifold, and a connecting surface for connection and mating with the engine block. The cylinder head body has a fuel jet channel communicating with the intake manifold. A cylinder head fuel jet clearance groove is provided on the inner wall of the intake manifold near the inner end of the fuel jet channel. An intake valve is installed on the cylinder head body, with its valve head installed in an intake valve seat hole. An intake pipe is installed on the cylinder head body on one side of the intake manifold. An injector seat is provided on the intake pipe, and an injector mounting hole communicating with the fuel jet channel is provided on the injector seat. An injector is installed in the injector mounting hole, and the linear distance between the injector nozzle and the center of the valve head is 70mm to 110mm. By precisely defining the position and mating relationship between the components, the overall performance of the engine is maximized.

The invention relates to the technical field of extrusion production line automatic control, in particular to an extrusion production line self-adaptive control method and system based on real-time meter weight feedback. The method comprises the following steps: monitoring the meter weight of a semi-finished product in real time and obtaining a measured value; comparing the value with a target value to calculate a deviation; calculating a newly set linear velocity through a specific control formula based on the deviation, the current linear velocity and a dynamic adjustment coefficient; and adjusting the linear speed according to the linear speed and forming closed-loop control. The dynamic adjustment coefficient can be adaptively adjusted according to statistical characteristics of a historical error sequence, such as a trend factor and a stability factor, and has a self-learning capability. The system comprises a meter weight measuring device, a controller for executing the method and a speed executing device. According to the invention, the meter weight control is changed from post detection to in-process control, real-time, accurate and self-adaptive speed adjustment is realized, the consistency of product quality is effectively improved, the waste of raw materials is remarkably reduced, and the dependence on artificial experience is reduced.

The invention discloses a network water army identification method based on user influence. The method comprises the following steps: step 1, collecting full-dimensional data of social media users; 2, text analysis and directed social graph construction: performing word segmentation and stop word removal on the text content of the full-dimensional data, obtaining sentiment polarity through sentiment analysis, and extracting semantic features; constructing a directed social graph based on the attention relationship between the users; 3, defining a comprehensive influence score of the user, wherein the score is formed by weighting and fusing three sub-dimensions of propagation influence, structure influence and time stability; 4, calculating an influence-activeness ratio and an influence mutation index based on the comprehensive influence score and activeness, and performing water army risk classification on the user in combination with the multi-dimensional feature vector; and step 5, result output and feedback optimization: generating a high-risk water army list, and continuously optimizing a judgment threshold and a feature weight through manual auditing and feeding back a closed loop so as to realize self-adaptive evolution of the recognition capability.

The application discloses a free telescopic and detachable phase change heat storage and exchange device, which comprises a shell, one end of the shell is a fluid inlet, the other end is a fluid outlet, a phase change module is arranged in the shell, the phase change module comprises a shell layer phase change module and an internal phase change module of the shell, the shell layer phase change module is arranged close to the inner wall of the shell, and the internal phase change module of the shell is arranged in the cavity of the shell layer phase change module. The device has the advantages of the tube-shell type and the plate type phase change heat exchanger, the heat storage and release rate is obviously higher than that of the existing plate type and tube-shell type phase change heat storage and exchange devices, and the problems of thermal expansion and cold contraction of the PCM module are effectively solved. The device has the advantages of high heat storage density, fast heat storage and release rate, compact structure, less heat loss, no expansion and cracking problems, no melting "dead zone", easy disassembly, installation and cleaning and the like. Compared with the prior art, the device has outstanding substantial characteristics and significant progress.

This invention discloses a method for preparing low-temperature loaded functional bacteria silicon-titanium nanoparticle mineral powder, comprising the following steps: preparation of silicon-titanium wet gel, in which tetraethyl orthosilicate and tetrabutyl titanate are dissolved in anhydrous ethanol at a Si:Ti molar ratio of 4:1, citric acid solution and deionized water are added, and the mixture is stirred and hydrolyzed at room temperature to obtain a transparent wet gel; low-temperature functional bacteria anchoring, in which the wet gel is controlled at 60±2℃, and a suspension of functional bacteria containing trehalose as a protective agent is sprayed into it at 4℃ through atomization, and the system is stirred to lower the temperature to ≤42℃ within 30 seconds, thereby anchoring the functional bacteria to the gel network through hydrogen bonds; low-temperature shaping, in which the anchored product is freeze-dried at -45℃ to obtain low-temperature loaded functional bacteria silicon-titanium nanoparticle mineral powder. This invention provides a universal technical path for loading active biological components onto silicon-titanium based functional materials, and the examples use publicly available standard strains, ensuring the authenticity and traceability of the data and completely avoiding the risk of fabricated content.

The application provides a low-thermal-conductivity, high-temperature-resistant, structure-ordered nanometer-layered calcium niobate heat-insulating coating, which has the advantages of low thermal conductivity and good thermal stability, and is suitable for being applied to a substrate with a heat-resistant temperature higher than 500 DEG C. Meanwhile, the application also provides a preparation method of the heat-insulating coating, which has the advantages of simple process, easy operation and high efficiency, and is suitable for large-scale application.

The application discloses a kind of small concave Offner spectral imaging systems based on active optics, design method and aberration correction method, belong to spectral imaging technical field.The system includes the concave spherical surface reflection main mirror of ball center coincidence, convex spherical surface grating and deformable concave spherical surface reflection three mirrors;Light beam is shot into by incidence slit, is reflected to grating spectroscopy by main mirror, then is imaged after being reflected by three mirrors.Design method adjusts curvature radius ratio and off-axis amount to make astigmatism meet requirements to determine initial structure, and surface shape coefficient is solved after optimization and surface shape is iteratively adjusted to within range.Aberration correction method is solved by constructing wave aberration matrix and driver response matrix to correct aberration.The application realizes the imaging of super-long slit large field of view at the same time, simple structure, easy to assemble and adjust, can realize the integration of large field of view general survey and local high-resolution detailed survey imaging.

This invention proposes a method for modeling and simulating the dynamic infrared radiation characteristics of a group of space targets, belonging to the field of simulation technology. The method includes the following steps: S1. Based on the mesh of each sub-target in the space target group, the dynamic temperature distribution sequence of each sub-target is obtained by solving the thermal conductivity differential equation; S2. Based on the position and attitude of each sub-target in the space target group, coordinate transformation is performed using a rotation matrix to rotate each sub-target to a unified CGCS2000 geodetic coordinate system; S3. Dynamic group target mesh construction and surface element temperature assignment are performed to generate the dynamic temperature distribution sequence of the group targets; S4. The occlusion relationship of all surface elements is determined, and the numbers of detectable surface elements are recorded; S5. Combining the detection band, the infrared radiation characteristics of the surface elements are obtained by solving Planck's law, and the infrared radiation characteristics of all visible surface elements are superimposed to obtain the dynamic infrared radiation characteristics of the group targets. This invention solves the problem of excessively high costs associated with modeling and simulation using existing technologies.