31results about How to "Guarantee long-term stability" patented technology

The invention discloses a soft rock large deformation control method and a rapid support system suitable for TBM tunnel construction method characteristics, the method is implemented based on an anchoring support system composed of a short anchoring support system and a long anchoring support system, and the method is suitable for an open TBM construction scene: in a TBM tunneling process, before a shield is exposed, the shield is not exposed, and the long anchoring support system is not exposed; a short anchoring support system of a full-length anchoring anchor rod structure is timely arranged in the radial direction of the 180-degree area of the upper half ring of the tunnel section through a cutter head edge cutter hole, and the short anchoring support system and a shield cooperate to form an initial deformation control system; after the shield is exposed, according to the deformation degree of the surrounding rock, full-length anchoring anchor rods or pre-stressed anchor cables are adopted in a graded mode, long anchoring supporting systems are arranged at intervals with the short anchoring supporting systems in a spiral mode, then the long anchoring supporting systems are cooperatively borne with steel arches, reinforcing meshes and sprayed concrete, and the long anchoring supporting systems are matched with 70m system sprayed concrete and 1000m secondary lining construction behind a tunnel face. According to the method, the displacement around the hole is effectively controlled, the TBM is prevented from being stuck, and the construction safety and efficiency of the open-type TBM in the soft rock large-deformation geology are improved.

This invention relates to the field of artificial intelligence technology and discloses a method and system for optimizing feed formulation for caged laying ducks. The method includes collecting multidimensional dynamic data and environmental parameter data of caged laying ducks; preprocessing and extracting features from the collected multidimensional dynamic data and environmental parameter data to generate standardized dynamic feature data and environmental stress factor data of laying ducks; and constructing a process flow that includes data collection, feature extraction, demand modeling, formula optimization, precise execution, feedback evaluation, and iterative updates, and building a corresponding collaborative system to achieve closed-loop optimization from perception, decision-making, execution to feedback, so that the feed formulation can be dynamically adjusted according to the real-time status of the laying ducks and environmental changes.

The present application provides a kind of mine roadway support intelligent design and feedback optimization system and method, it is related to mine support technical field, including rock mass quality classification, support parameter automatic design, knowledge graph case reasoning and AI optimization, agent model quick verification, three-dimensional visual support design and digital twin modeling, BIM / GIS integrated interface, multi-source monitoring and early warning, dynamic feedback optimization and surrounding rock parameter inversion, design report generation and multi-roadway progress board nine big subsystems.The intelligent generation and optimization of support scheme are realized based on machine learning algorithm through multi-source data fusion analysis, the three-dimensional visual model of roadway is established using digital twin technology, the dynamic adjustment of support scheme is driven by real-time monitoring data, the scientificity and economy of support design are effectively improved, the complex geological instability risk is effectively resisted, the intelligent management of support full life cycle is realized, and the safe and efficient production of mine is ensured.

The utility model belongs to noise detection technical field, specifically disclose an improved wind power noise test is with noise signal collection equipment, including sound level meter and wireless device, wireless device includes the equipment cabinet that lies on the ground, is equipped with antenna mast structure on the equipment cabinet, is equipped with antenna support on antenna mast structure, has fixed structure on antenna mast structure, fixed structure includes the eye -splicing, the eye -splicing is fixed on the ground through the wind rope of inclination setting and the ground peg of wind rope bottom end, and the ground peg is symmetrically set up in the periphery of equipment cabinet, antenna support includes the connecting seat that sets up in the top of antenna mast structure, the lateral rod that is symmetrically set up with both sides of connecting seat, the lateral rod end is connected with the antenna through detachable structure, the top clearance of connecting seat is equipped with LED lamp and photosensitive switch.

The application belongs to the technical field of polyethylene, and particularly relates to single-kettle bimodal polyethylene for water supply pipes and a preparation method thereof. The single-kettle bimodal polyethylene for water supply pipes is prepared by using ethylene as raw material, hydrogen as molecular weight regulator, a main catalyst and a cocatalyst, and a gas phase fluidized bed process to perform copolymerization with 1-hexene in a single reactor. The main catalyst is a supported metallocene bimetallic catalyst which is prepared by loading bis(cyclopentadienyl)zirconium dichloride, dichlorotitanocene and bis-arene imidazole pyridine iron complex on a silica carrier. The length of tie molecules and the lamella thickness are increased by increasing the polyethylene molecular weight. Meanwhile, the content of the comonomer in the polyethylene molecular chain is increased, which further increases the entanglement effect of the tie molecules between the lamellas, so that the lamellas are not easy to slip, thereby improving the slow crack growth resistance of the material.

The invention discloses an operation safety monitoring method of a wind and light energy storage platform. According to the method, operation parameters are collected and standardized in real time, and power and environment features are extracted to construct a multi-dimensional feature vector; a key feature subset is determined through dimension reduction, and a normal operation mode is established through clustering analysis; calculating the health deviation degree between the real-time state track and the clustering center, and triggering an alarm sequence; constructing a parameter interaction directed graph to reversely search and position an abnormal source; a monitoring model is updated in combination with historical abnormal logs, and the real-time abnormal risk probability is calculated through recursive filtering. According to the invention, intelligent safety monitoring and dynamic risk quantification of the wind and light energy storage system are realized, and the operation safety and the accuracy of abnormal early warning are remarkably improved.

This invention relates to the field of data management technology, specifically to an intelligent flow scheduling method for high-performance oil circuits in sheet metal pipeline networks. The specific implementation process includes: establishing a distributed intelligent execution entity and a resource optimization model based on a sheet metal pipeline network containing schedulable units and production management information including historical performance baselines and production plans; the distributed intelligent execution entity acquires and evaluates the operating data of the schedulable units to generate real-time status data; combining the real-time status data and historical performance baselines to analyze drift trends and generate performance degradation data; based on the production plan and performance degradation data, quantifying the comprehensive operating cost as the objective function to calculate and generate resource allocation strategies and work instructions; and the distributed intelligent execution entity combining work instructions, real-time status data, and performance degradation data to execute dynamic compensation management and generate scheduling instructions. This invention optimizes resource allocation by evaluating the real-time and long-term status of equipment, achieving risk avoidance and dynamic cost optimization.

The invention relates to the technical field of five-axis machine tools, in particular to a five-axis machine tool rotary table driving device which comprises a rotary table, a sliding base and a machine tool body, the rotary table is rotationally connected to the sliding base along the vertical rotation axis, and the sliding base is slidably connected to the machine tool body in the X-axis direction. The linear driving device has the beneficial effects that the detection precision, the driving precision and the driving stability of the linear driving device are improved through the precise alignment of the reference point of the reading head assembly and the rotation center and the cooperative matching of rigid locking and thermal extension self-adaptive release functions realized by the clamp at the tail end of the lead screw; therefore, the adaptability of the linear driving device to use scenes with high precision requirements is improved, and the requirements for high-precision machining in the high-end manufacturing fields such as aerospace and mold manufacturing are met.

The utility model relates to the technical field of geotechnical engineering side slope reinforcement, disclose a kind of geotechnical engineering side slope reinforcement device, including multiple reinforcing plates, the reinforcing plate left side outer wall is fixedly connected with two connecting blocks, the reinforcing plate right side outer wall is fixedly connected with two fixed blocks, the fixed block inside is provided with installation assembly, the reinforcing plate bottom is fixedly connected with multiple tapers, the taper inside is provided with extension assembly, the installation assembly includes sliding plate, the sliding plate outer wall slidingly connects in the connecting block inside, the sliding plate outer wall is fixedly connected with two ropes, the rope is fixedly connected with limit block one on the side away from the sliding plate, in the utility model, the synergies of sliding plate, rope, clamping block and spring one, the quick splicing of reinforcing plate is realized.When installing, clamping block is automatically slid under extrusion, after being inserted in place, spring one releases potential energy to complete clamping;When removing, sliding plate can be separated by pulling.

This invention relates to an intelligent adaptive control system for shooting light based on multi-point photometric monitoring, belonging to the field of optical measurement and automatic control technology. The system includes: a photometric sensing unit that collects and preprocesses photometric data from various areas of the shooting scene through a multi-directional, three-dimensional array of acquisition nodes; an anchoring and calculation unit that constructs a four-layer holographic mapping model of the light field based on measured data, matches the target light field parameters, calculates the deviation, and generates a priority-based collaborative control strategy; a collaborative control unit that adjusts the exposure parameters, supplementary light intensity, and color temperature of the shooting equipment according to priority to correct the light field deviation; and an optimization and control unit that iteratively optimizes the model by re-acquiring data, compares the remaining deviations, and executes closed-loop control. This system achieves comprehensive perception, accurate modeling, and intelligent control of the shooting light field, solving the problems of incomplete data acquisition, low control accuracy, and poor scene adaptability in traditional systems.

This utility model relates to the field of concrete composite jacking technology, specifically a steel-socket type reinforced concrete composite jacking pipe, including a jacking pipe with a sealing mechanism fitted on it. The sealing mechanism includes a pressure plate and a bushing. The bushing is snapped onto the jacking pipe, and several inserts are fixedly connected in a ring at equal intervals on the bushing. The bushing and inserts are snapped onto the pressure plate. A sleeve is fitted onto the pressure plate, and several inserts are fixedly connected at equal intervals on the sleeve. A water-stop rubber plate and a pressure plate are fitted onto the inserts, and the pressure plate is fixed to the inserts with bolts. Through bushing snap-fit ​​positioning, axial pressing of the water-stop rubber plate, and bolt fixing and locking, a triple seal is formed. The water-stop rubber plate expands radially after being pressed by the pressure plate, completely filling the gap of the jacking pipe interface, which helps to prevent leakage.

The application discloses a kind of drying device for silt and its use method, belong to silt processing technical field.The device includes network electricity, rectifier filter circuit, DC-DC converter, DSP processor, single-chip microcomputer control system, PWM amplification circuit, full-bridge inverter circuit and electrode.Network electricity is converted into direct current by rectifier filtering, and voltage conversion is carried out by DC-DC converter;DSP processor evaluates silt state and generates pulse signal, and single-chip microcomputer generates PWM signal, which is amplified to drive full-bridge inverter circuit to convert direct current into bipolar pulse voltage output to electrode, forming alternating electric field.Use method includes placing silt between electrodes, starting device, detecting humidity, optimizing tracking optimal drying point by resistivity-frequency closed loop, accelerating moisture migration, until resistivity is greater than 200Ω·m and humidity reaches 40% to complete drying.The device has the characteristics of low energy consumption, high efficiency, accurate control and no electrode corrosion.

This invention discloses an integrated injection mold for anti-misalignment TPR caster cores, belonging to the field of injection mold technology. It includes a mold base and mold feet symmetrically fixed on both sides of the top of the mold base. This invention achieves precise coaxial calibration of the upper and lower mold cores during the initial mold closing stage by engaging a limiting sleeve coaxially set at the top of the lower mold core and a limiting rod coaxially fixed at the bottom of the upper mold core. Simultaneously, a flexible, movable plate at the lower mold core can both axially push the molded product for initial demolding during the mold opening stage and link with a vibration mechanism during the mold closing stage. The axial movement of the limiting rod inserting into the limiting sleeve during mold closing generates continuous up-and-down vibration, which is synchronously transmitted to the plate and the limiting sleeve. This effectively eliminates the jamming between the burrs, flash, parting line protrusions, and the limiting structure on the inner wall of the inner shaft hole of the wheel core, ensuring smooth installation of the wheel core insert and further eliminating initial positioning deviations of the insert.

The invention discloses a thermogravimetric analysis device and method for high-humidity multi-component atmosphere reaction kinetics research, and belongs to the technical field of thermogravimetric analysis instruments.The device comprises a reaction module, a heating furnace, a weighing module, a gas distribution module and an analysis module; the reaction module is vertically arranged in the heating furnace, the core is a reaction pipe main body with an open lower part, and the side surface is connected with a gas inlet pipe and a sampling pipe from top to bottom; the weighing module is located below the reaction module and comprises a weighing balance, a water cooling unit and a weighing supporting rod, and the water cooling unit can control a water vapor condensation area and stabilize the temperature of the balance; the gas distribution module can provide a multi-component reaction atmosphere containing water vapor with controllable concentration; the analysis module can detect tail gas components in real time. The device can realize low gas-solid mass transfer resistance, high-humidity environment stable control, wide-particle-size sample measurement and rapid heating and cooling, and is suitable for high-humidity multi-component atmosphere gas-solid reaction kinetic research in the fields of combustion, catalysis, adsorption and the like.

The utility model discloses a kind of BWRFP electric power pipes that cable can be positioned, the utility model relates to electric power engineering technical field, including electric power pipeline and cable, two groups of electric power pipeline are provided with connecting head between them, two groups of rectangular grooves are opened in the inner wall of connecting head, two groups of rectangular grooves are all movably installed with threaded rod, the utility model has the advantages that: through this device, cable can be accurately positioned during laying, reduce the repeated construction or adjustment caused by improper cable position, to significantly improve construction efficiency, while it can be ensured that cable is fully protected in electric power pipe, avoid mechanical damage caused by external force during laying or use, cable can also be avoided to be exposed outside pipe at both ends, cable can be effectively prevented from being affected by rain, humidity, corrosive environmental factors, to prolong the service life of cable, to enhance cable protection performance.

This utility model relates to the fields of industrial equipment, laboratories, and aerospace, specifically a pressure scanning valve pressure tube insertion and removal clamp. It includes a first clamp arm and a second clamp arm rotatably connected to the first clamp arm. The first and second clamp arms have open and closed states. One end of the first clamp arm is provided with a first jaw portion, which includes a first and a second parallel receiving groove. One end of the second clamp arm is provided with a second jaw portion, which includes a third and a fourth parallel receiving groove. When in the closed state, the first and third receiving grooves align to form a first anti-disengagement interface, and the second and fourth receiving grooves align to form a second anti-disengagement interface. This utility model ensures safe and convenient pressure tube insertion and removal operations while protecting the pressure tube and the pressure scanning valve input interface from damage. It is also applicable to pressure tubes of two different diameters, making it widely applicable.

The application discloses a cantilever type instrument operation parameter optimization trajectory planning method for a multi-constraint field coupling in a limited space, and relates to the technical field of dental robots. In the tooth preparation process, the instrument is prone to collision with the tooth and oral tissue in the limited space in the oral cavity, and the end force deformation affects the machining precision. The technical points are as follows: the residual volume of the interaction between the bur and the tooth is calculated, and an end force deformation model based on grinding force, friction force and extrusion force is established; a penalty function containing the collision between the bur and the tooth, the collision between the handle of the dental handpiece and the mouth and the tooth is constructed, and the space collision detection is carried out through the enclosing ellipsoid method; in combination with the continuity requirement of the joint angle, an optimization function taking the material residual volume, the comprehensive deviation of the end deformation and the motion smoothness as targets is established, and a multi-objective optimization algorithm is adopted to solve the optimal instrument pose and joint parameters; and the operation parameters of the cantilever type instrument under multiple constraints are optimized under the premise of ensuring the preparation accuracy and safety.

The utility model relates to the technical field of wiring harness installation, especially relates to an assembly type ABS wiring harness, including ABS connector and conducting wire, its characterized in be further including: conductive contact subassembly, set up in the inside of ABS connector, and through the adhesive bonding fixed, threaded sleeve, set up in the end of ABS connector, and through the adhesive bonding fixed, fastening structure, set up in the end of ABS connector, through with threaded sleeve screw joint. The utility model through the conductive contact subassembly, threaded sleeve and other components are bonded fixed in advance in ABS connector, when on-site assembly, worker only needs to insert conducting wire directly into conductive contact subassembly, and can complete fixed through the rotation of the threaded cylinder of fastening structure, completely saves the terminal crimping link, greatly shortens the assembly process, and significantly improves production efficiency.

This invention belongs to the field of AGC frequency regulation technology for thermal power units, and discloses a performance prediction method for AGC frequency regulation of thermal power units. It constructs a multi-source heterogeneous data acquisition system covering the entire frequency regulation chain, achieves multi-scale data synchronization through timestamp alignment, and completes data preprocessing by combining physical constraints. Simultaneously, it employs the CCM-PCMCI causal filtering algorithm with physical constraints of the unit's thermal system to accurately distinguish between causal and pseudo-correlation relationships, eliminate redundant features, and constructs a multi-scale time-series feature adaptive extraction system to form a full-dimensional feature library, comprehensively characterizing the dynamic characteristics of frequency regulation, improving the model's generalization ability and interpretability, and avoiding prediction bias caused by feature redundancy or missing information. It optimizes the density peak clustering method to achieve adaptive partitioning of typical operating condition clusters for unit AGC frequency regulation, and constructs a TFT model with an adaptive attention mechanism and a mechanism constraint layer for each operating condition cluster, which can dynamically focus on core features and key time segments.

This invention relates to a method for adaptive selection of CPU and GPU paths for JPEG decoding based on runtime performance measurement, belonging to the field of heterogeneous computing technology. The method includes pre-measuring the performance of a heterogeneous platform consisting of a CPU, GPU, and the PCIe bus connecting the CPUs to obtain the average time the CPU spends computing a single DCT block, the effective bidirectional bandwidth of the PCIe bus, and the fixed startup overhead of the GPU task; online measurement to obtain the actual computation time of the GPU executing a single DCT block; the CPU performs entropy decoding on the input JPEG image to obtain _DCT blocks; the CPU predicts the total time based on N and _, and the GPU predicts the total time based on _, _, and _; based on the CPU's predicted total time and the GPU's predicted total time, the method adaptively selects either the CPU path or the GPU path to decode _DCT blocks; if the GPU path is selected, when the current operating frequency of the GPU exceeds a preset threshold, the method updates the frequency in real time based on the current operating frequency of the GPU. This achieves adaptive selection of CPU or GPU for JPEG image decoding.

The invention discloses a method suitable for analyzing drivability of an outer core of a stiff composite pile cement-soil mixing pile, which comprises the following steps: S1, sand layer differentiation pretreatment construction, which comprises the steps of pre-construction investigation and parameter design, layered mixing pretreatment and flexible pile quality pre-control; the method comprises the steps of implantation opportunity control, equal-core positioning and guiding, layered implantation and resistance control and pile body deflection real-time correction. The method comprises the following steps: firstly, carrying out detailed investigation on a sand layer in a construction area, determining the particle size, compactness and gravel-cobble distribution range and content of the sand layers with different depths, dividing three areas, namely an upper loose fine sand layer, a middle transition sand layer and a lower medium-dense coarse sand layer, and designing cement soil stirring parameters in a targeted manner; by implementing the sand layer precise layering, differential stirring pretreatment and filler adaptation technology, the problems that sand layer pretreatment is not uniform, and combination of the flexible pile and the sand layer is weak are effectively solved.

This invention discloses a self-crosslinking thermoplastic encapsulation film, its preparation method, and its application. The encapsulation film comprises a three-layer co-extruded structure with an intermediate layer and two outer layers on both sides. The intermediate layer contains an organotin catalyst, and the two outer layers contain organotin inhibitors and a high content of silane-grafted polyolefin elastomer. It can achieve rapid self-crosslinking reaction under low-temperature lamination conditions of 120°C, providing excellent creep performance. At the same time, it can also inhibit the self-hydrolysis of silane caused by the migration of the inner catalyst, ensuring high peel strength with glass or backing, ultimately achieving the core effect of "low-temperature crosslinking without damage and excellent adhesion and creep resistance".

The utility model relates to sensor technical field discloses a kind of fiber grating strain sensors for bolt, including the steel pipe for supporting and protection, the detection component for detecting bolt strain is installed in the steel pipe, the protection component for protecting detection component is installed in the both ends of steel pipe.The utility model is fixed in the bolt inner hole to be detected using special glue with steel pipe, the strain of bolt is directly transmitted to fiber grating by special glue, the strain of fiber grating is measured to reflect the strain of bolt, the anti-electromagnetic interference characteristics of fiber grating ensure stable monitoring under complex working condition, steel pipe structure optimizes stress transmission efficiency and protects fiber grating from mechanical damage, both guarantee long-term stability under dynamic load, adapt to wide temperature range environment, and this embedded design improves the accuracy of bolt health monitoring.

This invention discloses a method for extending the service life of the main charging and main feeding belts and their accessories in a blast furnace. The method involves installing several rows of wear-resistant mesh inside the charging hopper; installing at least one pair of crossbars inside the weighing hopper below the charging hopper; and providing a transfer hopper between the main charging and main feeding belts, with an inclined transfer discharge channel below the transfer hopper, the transfer discharge channel forming an angle of 40-60° with the tail direction of the main feeding belt. This method, by improving the charging hopper, weighing hopper, and transfer hopper, can remove thin, sharp objects or large iron-containing objects from the material before it is conveyed to the main charging and main feeding belts, reducing the probability of belt damage and tearing, thereby extending their service life. Timely maintenance ensures the normal operation of the belts, effectively preventing unplanned blast furnace shutdowns and passive production stoppages.

The utility model discloses a nondestructive testing device for detecting the diameter of steel bars in concrete, which comprises an annular rotating support, at least three detection units evenly distributed along the circumference of the annular rotating support, a servo motor for driving the annular rotating support to rotate, a signal processor electrically connected to the detection units, an operating handle mounted on the top of the annular rotating support, and a hydraulic linkage leveling base assembly. The detection unit comprises a coaxially arranged electromagnetic sensor and an ultrasonic transducer. The top of the hydraulic linkage leveling base assembly is rigidly connected to the bottom of the annular rotating support, and the bottom surface of the hydraulic linkage leveling base assembly constitutes the working bottom surface of the device. The nondestructive testing device has the advantages of significantly improved detection accuracy, strong surface adaptability, strong anti-interference capability, stable signal transmission, convenient and flexible operation, high detection efficiency, stable and reliable coupling effect, and the like.

This invention relates to the field of new materials technology, and discloses a strontium-doped hydroxyapatite and polydopamine composite coating on a porous tantalum surface, its preparation method, and its application. The method first prepares strontium-doped hydroxyapatite powder capable of continuously releasing strontium ions by precipitating calcium, strontium, and phosphorus sources in a predetermined ratio under alkaline conditions. Subsequently, this powder is mixed with dopamine in a weakly alkaline buffer solution to form a reaction solution. Through in-situ polymerization of dopamine, a composite coating containing strontium-doped hydroxyapatite and polydopamine is constructed on the porous tantalum surface. Through integrated structural design, the three functions of osteogenic properties, photothermal antibacterial properties, and interface strengthening are organically integrated and mutually promoted. This fundamentally solves the defects of existing hard tissue implant materials, such as single function, difficulty in simultaneously achieving antibacterial and osteogenic properties, and insufficient long-term stability. It provides a surface modification solution for orthopedic implants that combines excellent antibacterial activity and osteogenic capacity.

The application relates to a silver-nickel electric contact, and relates to the technical field of electric contact materials, which is made of the following raw material components: silver-nickel composite powder, nano tungsten powder, high-activity carbon source, tin-germanium pre-alloy powder and nano yttrium oxide. The tin-germanium pre-alloy powder, the nano tungsten powder and the high-activity carbon source are introduced to form a metastable (W, Sn, Ge) Cx ternary carbide transient intermediate phase, which is then decomposed and in-situ nano tungsten carbide reinforcing phases are formed; meanwhile, the separated tin-germanium liquid phase migrates to the surface to form a composite passivation film, so that the electrical stability, the arc ablation resistance and the corrosion resistance of the electric contact material are enhanced. The nano yttrium oxide is reduced to high-activity yttrium atomic oxygen impurity capturing clean interfaces in the sintering process, effectively pins the grain boundary, cooperates with the tungsten carbide reinforcing phase and the composite passivation film to guarantee the structural stability.

This utility model discloses a circularly polarized electrically tunable antenna, including a mounting plate, a radio frequency receiver, a filter, a power divider, N phase shifter assemblies, N+1 radiating elements, and a phase adjustment mechanism. The N phase shifter assemblies are located on the front of the mounting plate, and the N+1 radiating elements are located on the back of the mounting plate. The radio frequency receiver is connected to the input of the filter, and the output of the filter is connected to the input of the power divider. One output of the power divider is connected to one radiating element, and the other outputs of the power divider are connected to the remaining N radiating elements after passing through the N phase shifter assemblies. The phase adjustment mechanism is connected to the phase adjustment sections of the N phase shifter assemblies, and is used to synchronously adjust the phase of the N phase shifter assemblies. The phase adjustment mechanism synchronously drives multiple phase shifter assemblies to achieve global phase consistency of the array. A mechanical linkage method using a transmission rod and guide block ensures the synchronicity of the adjustment actions of each phase shifter.