13results about How to "Guaranteed functional stability" patented technology

The application provides a sulfur-oxidizing bacteria-mediated carbon-free autotrophic denitrification water treatment method, and the high-performance sulfur-oxidizing bacteria with a polysulfide yield of 35%-42% is prepared through the dual-stress gradient domestication of the mass proportion of elemental sulfur in the sulfur source and the pH of the system; the high-activity bacterial suspension is prepared through centrifugal washing and buffer resuspension; the partitioned fluidized bed reactor is used, the compound sulfur source of elemental sulfur and sodium sulfide with nine waters is proportionally controlled in stages, and under the condition of no organic carbon source, the efficient autotrophic denitrification of the nitrogen-containing wastewater is realized. The denitrification efficiency is high, the operation stability is strong, no organic carbon source needs to be added, the simultaneous removal of multiple pollutants such as total phosphorus and suspended solids can be realized, the effluent quality can stably meet the high-standard discharge requirements, and the application is suitable for the advanced denitrification treatment of tail water of urban sewage treatment plants and industrial low-carbon-nitrogen-ratio wastewater.

The invention provides a preparation method and application of magnetic hydrogel, and relates to the technical field of environmental pollution treatment. The embodiment of the invention provides a preparation method and application of magnetic hydrogel. The preparation method comprises the following steps: S1, preparing a magnetotactic bacterium suspension; s2, preparing Schwertmannite powder; s3, the magnetotactic bacterium suspension and the schwertmannite are oscillated and mixed, so that magnetotactic bacteria are attached to the surfaces of schwertmannite powder particles, and a magnetotactic bacterium-schwertmannite compound is obtained; s4, mixing the magnetotactic bacteria-schwertmannite compound in an aqueous solution of polyvinyl alcohol, and stirring to obtain a precursor solution; placing the precursor solution under a circulating freezing-unfreezing condition for crosslinking, so as to obtain the three-dimensional network magnetic hydrogel. According to the preparation method and application of the magnetic hydrogel provided by the embodiment of the invention, a'magnetotactic bacteria-schwertmannite-polyvinyl alcohol 'ternary composite system is constructed, so that a repair material which can be magnetically recycled and can synchronously remove heavy metals and organic pollutants is formed.

This utility model discloses a waterway anti-freezing and cracking structure, which can prevent waterways in various water-using devices from freezing and cracking due to ice formation. The waterway anti-freezing and cracking structure includes a water-conducting body, a base, an elastic membrane, a piston, and an elastic element. The water-conducting body has at least one waterway with an opening connecting to the surface of the water-conducting body. The base is detachably connected to the opening and presses the periphery of the elastic membrane tightly against the periphery of the opening. The base has a movable cavity. The piston is movably fitted within the movable cavity. The elastic element is disposed within the movable cavity and acts on the piston to abut against the elastic membrane. The elastic force of the elastic element is greater than the maximum water pressure within the waterway.

The invention discloses a lateral air inlet air duct structure and a ventilation device applying the same, and relates to the technical field of ventilation electrical appliances, the lateral air inlet air duct structure comprises a machine shell, a volute is arranged in the machine shell, the volute is provided with an air inlet and an air outlet, the air inlet is formed in the bottom of the machine shell, the air outlet is formed in one side of the machine shell, and a flow collecting space is formed in the volute; the air inlet and the air outlet are both communicated with the flow collecting space, an impeller assembly is arranged in the flow collecting space, a motor is installed on the volute, a rotating shaft of the impeller assembly is connected with the output end of the motor, and the impeller assembly corresponds to the air inlet; a lamp cover is connected below the machine shell, and an air inlet channel is formed between the lamp cover and the machine shell. And a lateral air inlet duct is formed between the lamp cover below the shell and the shell, so that the air volume loss is reduced. The impeller assembly is arranged corresponding to the air inlet and guides air into the flow collecting space during rotation, and the lateral air inlet amount is increased. When passing through the air inlet duct, airflow can dissipate heat for electrical elements on the lamp cover, and the working state of the elements is prevented from being affected by too high temperature.

The invention relates to the technical field of computer software, in particular to a migration and performance enhancement automation method based on a front-end system and related equipment. The method comprises the following steps: performing identification and path extraction on a dynamic import statement according to an abstract syntax tree library or a regular expression, and performing file existence verification to obtain a path validity result; performing case correction and extension complementation on the dynamic import path based on a path validity result, and rewriting the source code to obtain a repaired source code file; key time sequence nodes and memory use conditions in the front-end construction process are collected, and performance monitoring data are obtained; performing hash comparison on the construction command to obtain a verification result; and carrying out aggregation migration on the verification result and the repair log to obtain a complete migration report. According to the method, the construction starting efficiency can be remarkably improved, the migration and debugging cost is reduced, paths, styles and key names are unified and standardized, the consistency of construction products is guaranteed, and traceable migration reports and extension plans are provided.

The low-temperature and high-pressure double-layer hydrogen storage bottle comprises an inner container, a bottle opening pipe is arranged at one end of the inner container in the axial direction of the hydrogen storage bottle, and an inner valve seat is arranged at the other end of the inner container; the heat insulation layer is arranged on the outer wall of the inner container; the outer container is provided with a through hole, the outer wall face of the bottle opening pipe is fixedly connected with the through hole, the outer container is provided with an outer valve seat corresponding to the inner valve seat, the outer container is formed in a segmented mode in the axial direction, and a vacuum layer is formed between the inner container and the outer container; one end of the connecting rod is connected with the inner valve seat, the other end of the connecting rod is connected with the outer valve seat, and the relative positions of the inner container and the outer container in the radial direction of the hydrogen storage bottle are fixed; the inner supporting frame is located in the vacuum layer, one axial end of the inner supporting frame is fixedly connected with the bottle opening pipe, the other axial end of the inner supporting frame is provided with a connecting ring, and the connecting ring is located on the periphery of the connecting rod and fixedly connected with the inner wall face of the outer container; the inner valve seat and the connecting ring are elastically connected in the axial direction through the elastic piece, so that the stress condition of the outer container in the low-temperature material adding and discharging process of the hydrogen storage bottle is improved, and the functional stability and safety of the double-layer hydrogen storage bottle are guaranteed.

This utility model discloses a distributed heating architecture and system based on a boiler cluster, comprising: an outer boiler structure, with at least two sets of such structures arranged in a distributed manner; a convergence and guiding structure, including an annular convergence chamber and heating distribution pipes; the annular convergence chamber is configured as a ring-shaped pipe, and is connected to at least two convergence heat inlet pipes, which are connected one-to-one with the heat source outlet ends of the at least two sets of outer boiler structures; several heating distribution pipes are provided, which are distributed and connected to the annular convergence chamber and connected one-to-one with several heating terminals, and each heating distribution pipe is also equipped with a flow control valve. This solves the technical problem in the prior art of complex and cumbersome pipeline architecture and valve settings caused by the large number of terminals and high heat demand when providing heating to terminals corresponding to a boiler cluster.

The utility model relates to the technical field of card seat connector, specifically a card seat connector, including metal shell, card card holder and hardware terminal, the metal shell inside is provided with hardware terminal, the hardware terminal inside injection moulding has plastic shell, be provided with card card holder between the plastic shell and metal shell, the both sides outer wall of hardware terminal all integrative forming has the limit block, the limit block outside is provided with the push rod, the plastic shell upper end outer wall one side integrative forming has the assembly shaft, the assembly shaft outer wall is provided with the ejection rod, because metal shell and hardware terminal adopt the material quality design of metal thus can control the thickness in 0.08mm while ensuring the structural strength, thereby can reduce the overall thickness of connector, can adapt to the demand of small size.

The invention discloses a multi-scale self-adaptive plant ecological floating bed system for creating a fish habitat in the field of ecological floating beds, which comprises a fixed unit mounted on a riverbed and a floating bed unit comprising a plurality of planting units arranged in an array, and the planting units are connected through hinge devices; the planting unit comprises a floating plate and a planting basket, and the floating plate and the planting basket are connected through a telescopic device; the acquisition unit comprises a water level sensor and a water quality sensor; the control unit is connected with the water quality sensor, the water level sensor and the telescopic device. According to the multi-scale self-adaptive plant ecological floating bed system for creating the fish habitat, the planting unit adopts a submerged plant-emergent aquatic plant-floating leaf plant ternary coupling design, so that the ecological space is fully utilized; the planting baskets provide conditions for spawning, juvenile rearing and bait rearing of fishes, the adjacent planting land units are connected through the hinge devices, the floating bed can be rapidly and flexibly recycled or expanded, and the environmental adaptability of the system is improved.

The invention relates to a cooperative control method and a control circuit for an SRAM (Static Random Access Memory) integrated zero-area charge pump, which are characterized in that strict isolation in a time domain is realized by dividing an SRAM reading window and a charge pump high-noise working window in a shared master clock period; a self-adaptive timing calibration mechanism based on BIST (built-in self-test) is introduced, a programmable delay unit is scanned in a chip test or power-on stage, the bit error rate of an SRAM is quantized to determine the individualized optimal timing configuration of each chip, the configuration is solidified in an on-chip nonvolatile memory, and the on-chip nonvolatile memory is used for realizing on-chip test or on-chip power-on. Residual noise and time sequence uncertainty caused by process mismatch and PVT drift are effectively suppressed, and the SRAM reliability and the large-scale mass production yield are improved.

This utility model relates to a water purifier, including a housing and a power supply component and a water circuit board installed in the housing. A mounting bracket is vertically arranged in the housing, fixed to the housing and including a first mounting area and a second mounting area below the first mounting area along its height. The first mounting area is used to install the power supply component and the power circuit board's power-conducting connector, and the second mounting area is used to install the water circuit board's water-conducting connector. This utility model enables separate dry and wet installation of the water circuit and electrical circuit on the mounting bracket, avoiding safety issues caused by cross-installation of water and electrical circuits, and helping to ensure the safety and functional stability of the water purifier. Furthermore, concentrating the power supply and water-conducting connectors of the water circuit board on the mounting bracket simplifies the internal layout of the water purifier and makes full use of the internal installation space.

The utility model belongs to cigarette packaging anti -fake technical field discloses a kind of color printing anti -fake cigarette film, including wear -resisting coating, microlens array layer, color printing anti -fake layer, plasma processing base film and heat seal layer;Wear -resisting coating, microlens array layer, color printing anti -fake layer, plasma processing base film and heat seal layer are set from top to bottom, microlens array layer includes the hemispherical lens unit of 50-200 μm diameter, including nanometer silicon dioxide particle in wear -resisting coating, the particle size of nanometer silicon dioxide particle is 15-30nm, color printing anti -fake layer includes mutually matched micrograph text area and background interference line, and the minimum line width of micrograph in micrograph text area is 2-5 μm.The utility model is matched by microlens array layer and color printing anti -fake layer Optically, dynamic stereo vision effect is formed, consumers can identify authenticity with naked eye without special equipment, solve the problem that holographic laser technology relies on equipment, simultaneously multilayer structure design, can promote interlaminar bonding force, avoid delamination risk.

This invention provides a retractable safety fence and its manufacturing method, belonging to the field of fence manufacturing technology. It includes: a support component for providing overall support; a telescopic component connected to the support component, capable of horizontal extension and retraction to adjust the fence length, the telescopic component comprising multiple sets of intersecting links, the links being able to rotate relative to each other via a movable connection structure; and an intelligent alarm component installed on the support component, including a status monitoring unit, an alarm execution unit, and a power supply unit. The status monitoring unit collects abnormal status information of the fence, the alarm execution unit issues an alarm signal based on the abnormal status information, and the power supply unit supplies power to the intelligent alarm component. This invention not only solves the problems of inconvenient storage and poor adaptability of traditional fixed fences, and the problems of sputtering and uneven protection in retractable fences, but also achieves linkage between abnormal status monitoring and multi-dimensional alarms, overcoming the problems of single intelligent early warning function and delayed response in existing fences.