70 results about "Chemical change" patented technology

The invention discloses a method for synergistically enhancing biological oxidation of arsenopyrite by utilizing symbiotic minerals, which particularly comprises the following steps: adding a certain amount of pyrite into an arsenopyrite biological oxidation system, and improving the quantity and activity of acidophilic thiobacillus ferrooxidans by utilizing chemical change of a solution generated by oxidation of the pyrite. The mineral leaching capability of the functional microorganisms is optimized; meanwhile, under the dual action of pyrite and microorganisms, the content of Fe < 3 + > in the solution is remarkably increased, and the Fe < 3 + > serves as a main oxidizing agent for oxidizing arsenopyrite; due to the difference between the surface potentials of the pyrite and the arsenopyrite, a galvanic couple effect is formed between minerals, the electron transfer efficiency between the arsenopyrite and the oxidizing agent is accelerated, and finally the purpose of improving the leaching rate of the arsenopyrite in a biological system is achieved; according to the method, the leaching rate of arsenic in an arsenopyrite biological oxidation system is increased by nearly 8 times at most, the reinforcing effect on arsenopyrite oxidation is remarkable, and meanwhile the method is simple in process, mild in condition, easy and convenient to operate and low in cost.

The application provides an electrochemical synthesis method and device capable of programmable electric field and magnetic field control, and relates to the technical field of electrical devices.The device comprises an electrolytic cell, two electrodes, a programmable alternating current source, a magnetic field generating device and a control device.The electrolytic cell is used for containing electrolyte for generating an electrochemical reaction.The programmable alternating current source is connected with the two electrodes and used for providing an alternating electric field into the electrolytic cell.The magnetic field generating device is used for providing an alternating magnetic field into the electrolytic cell.The control device is used for adjusting the parameters of the programmable alternating current source, so as to adjust the electric field parameters of the alternating electric field and adjust the magnetic field parameters of the alternating magnetic field, so as to optimize the rate of the electrochemical reaction and directionally prepare materials.The application can prepare materials capable of advantageous reconstruction, so that when the materials are used as cathodes and anodes in batteries, the deterioration tendency occurring in the charging and discharging process can be reduced, and then physical and chemical changes of metals or other materials on the surfaces of the cathodes and the anodes will not occur, and corrosion phenomena can be avoided.

The invention discloses a purple berry tea processing parameter optimization and sensory quality consistency control method and a related device. The method comprises the following steps: acquiring physical and chemical indexes of purple berry tea buds and leaves; performing image recognition on the purple rubus corchorifolius buds and leaves to obtain macroscopic feature indexes; fusing the physical and chemical indexes and the macroscopic characteristic indexes to obtain raw material characteristic vectors; collecting environment and mechanical parameter data; acquiring chemical change data in the processing link; the environment and mechanical parameter data and the chemical change data are fused to obtain a machining process feature vector sequence; and inputting the raw material feature vector, the processing process feature vector sequence and the sensory quality feature vector for measuring the finished purple berry tea into a trained processing parameter enhancement strategy model, and outputting a current optimal processing parameter adjustment instruction and sensory quality consistency deviation. According to the method, the problem of quality instability caused by raw material difference and environmental fluctuation is solved, and high consistency of sensory quality in batches and between batches of purple berry tea products is guaranteed.

The invention relates to the field of agricultural bactericides, in particular to a suspending agent containing fenaminstrobin and validamycin A and application of the suspending agent. The bactericidal composition comprises a suspending agent containing fenaminstrobin and validamycin A, an active component, a stabilizer, an auxiliary agent and water, the active component accounts for 1-70% of the mass of the preparation, and the stabilizer accounts for 0.1-10% of the mass of the preparation; wherein the active ingredients are fenaminstrobin and validamycin A, and the stabilizer is meglumine (N-methyl-D-glucosamine). The suspending agent prepared by the technical scheme of the invention effectively inhibits the increase of the particle size of a sample in the thermal storage process of a preparation, effectively improves the suspension rate of fenaminstrobin after the thermal storage of the preparation, improves the utilization rate of a pesticide, and ensures the normal exertion of the efficacy of the pesticide at the same time. Meanwhile, the quality of the active components of the stabilizer-containing bactericide is stable within the shelf life, the addition of the stabilizer does not cause the decomposition of the active components, and the preparation does not have obvious physical or chemical change.

The disclosed recycling method of waste polyester depolymerization and mild selective depolymerization of blended textiles is to use waste polyester and blended textiles as raw materials, under the action of alkaline catalyst, or use mixed solvents composed of alcohol compounds and aprotic solvents as reaction solvents, or use alcohol compounds or mixed solvents composed of alcohol compounds and aprotic solvents as reaction solvents, so that the polyester in waste polyester and blended textiles undergoes hydrolysis, selective hydrolysis, alcoholysis or selective alcoholysis, and then depolymerizes to generate small molecule degradation products, while other non-polyester components do not undergo chemical changes. The alkaline catalyst and reaction solvent selected by the application not only can reduce the reaction temperature, but also can efficiently catalyze the depolymerization of polyester without causing chemical changes in non-polyester components, so that the energy consumption and reaction time can be greatly reduced, the recycling efficiency can be improved, the purity and yield of polyester depolymerization products can be greatly improved, and the recycling and utilization of all components in textiles can be realized.

Methods and systems for the controlled production of aqueous halogen solutions with varying compositions are disclosed. According to an embodiment, aqueous solutions of hypochlorite ions are modified through the sequential addition of pH adjusting chemicals, non-chloride halide ions, and halogen stabilizing compounds. Sensors, for measuring physical and chemical properties of the solutions as they change due to the impact of the various chemical reactions, are linked to a control system which, in turn, can control the input of one or more chemicals. The control system facilitates the production of a solution with desired characteristics in terms of pH, specific halogen composition, degree of halogen stabilization, and limiting the production of undesired by products such as bromate ions.

The preparation method comprises the following steps: immobilizing a specific capture antibody Ab1 of a carcino-embryonic antigen on the surface of a gold electrode, closing a non-specific site by bovine serum albumin to obtain a BSA / Ab1 / GE working electrode, capturing the carcino-embryonic antigen, fusing the carcino-embryonic antigen with an enzyme-coated HHOF-Ab2 nano probe, and detecting the enzyme-coated HHOF-Ab2 nano probe to obtain the sandwich type electrochemical immunosensor based on the enzyme-coated hydrogen bond organic framework hybrid catalyst. The enzyme coated HOF-based sandwich type electrochemical immunosensor is obtained; the sensor specifically recognizes CEA through 'Ab1-CEA-Ab2' double antibody sandwich, the cyclic reaction of H2O2 and HQ is catalyzed by virtue of the enzyme-coated HOF nanoprobe to amplify a signal, and finally chemical change caused by oxidizing hydroquinone into benzoquinone is converted into quantifiable current by virtue of an electrochemical workstation, so that ultra-sensitive detection of CEA is realized, and the sensor has the advantages of high sensitivity, high response speed, strong specificity and the like.

Coating materials such as paints, and / or coatings used to protect and improve the aesthetics of a material surface, develop the problem of degradation under environmental exposure. The degradation causes the coating to fail unexpectedly in its required applications. To keep this in check, the service life and change in material properties of a paint / coating need to be predicted before its use. Present disclosure provides system and method that implement a combined model to estimate the service lifetime and predict the chemical and physical changes in a coating material under various weathering conditions. The combined model captures the chemical modifications and physical modifications and affected properties like surface roughness, thickness loss, fracture toughness, gloss loss respectively. Chemical changes and physical changes are estimated correlated to help in estimating the service lifetime and degradation of the coating material.

The utility model discloses a gas equipment state detection device, which belongs to the technical field of gas sensors, and comprises a base and a miniature push cylinder, the surface of the base is provided with a shell, one end of the shell far away from the base is provided with a gas inlet channel assembly, the shell is internally provided with a mounting seat, one side of the mounting seat is fixedly connected with the base, and the other side of the mounting seat is fixedly connected with the miniature push cylinder. A detection element and a compensation element are arranged on the other side of the mounting base, a through pipe is arranged in the center of the mounting base, an air flow adjusting assembly is arranged at the end, away from the base, of the through pipe, and the micro push cylinder is arranged in the base. By arranging the mesh bag, the rear cover and the molecular sieve, sulfide in sulfur-containing air can be filtered, irreversible chemical change of a catalyst in the detection element is prevented, and by arranging the air flow adjusting assembly, when it is detected that the temperature of the detection element is abnormal, the micro push cylinder pushes the flow limiting cover to close the air inlet, and the air flow is adjusted. Only a small amount of fuel gas is allowed to enter through the flow limiting hole, and poisoning of a detection element is avoided while the detection function is maintained.

This application provides a method, apparatus, device, and storage medium for monitoring carbon and nitrogen emission data of emission sources. The method acquires observed concentration data of carbon dioxide, nitrogen dioxide, and wind field data for a target emission source; it performs spatiotemporal alignment and correlation of the carbon dioxide and nitrogen dioxide concentration observation data to obtain multiple observation data pairs; if preset plume identification conditions are met, it fits the plume concentration distribution based on the multiple observation data pairs to obtain the linear density of carbon dioxide and the linear density of nitrogen dioxide; using a nitrogen dioxide concentration decay correction model characterizing the chemical change law of nitrogen dioxide during atmospheric transport, it corrects the nitrogen dioxide linear density to obtain the linear density of nitrogen oxides; and based on the carbon dioxide linear density and the nitrogen oxide linear density, it determines the carbon-nitrogen emission rate ratio of the target emission source. The embodiments of this application can improve the accuracy of the carbon-nitrogen emission rate ratio.

Coating materials such as paints, and / or coatings used to protect and improve the aesthetics of a material surface, develop the problem of degradation under environmental exposure. The degradation causes the coating to fail unexpectedly in its required applications. To keep this in check, the service life and change in material properties of a paint / coating need to be predicted before its use. Present disclosure provides system and method that implement a combined model to estimate the service lifetime and predict the chemical and physical changes in a coating material under various weathering conditions. The combined model captures the chemical modifications and physical modifications and affected properties like surface roughness, thickness loss, fracture toughness, gloss loss respectively. Chemical changes and physical changes are estimated correlated to help in estimating the service lifetime and degradation of the coating material.

A system for measuring changes in a fluid stored within a container is disclosed. The system may include a radio-frequency sensing element disposed externally on the container and configured to generate a signal indicative of at least one dielectric property of the fluid, wherein the fluid undergoes composition-based or environment-driven changes due to interactions with the container. In some aspects, a processing component generates an output representative of at least one time-varying fluid characteristic. In some aspects, the container is a wooden barrel with an interior surface adapted to impart flavor or chemical changes to the fluid. In some aspects, the fluid is a beverage including at least one of wine, beer, and distilled spirits, with the time-varying characteristic including a fermentation parameter that changes over time. In some aspects, the at least one time-varying fluid characteristic of the fluid includes at least one of fluid level or fluid volume.

A solar concentrator reactor system and method of use for high temperature thermochemical processes. In one embodiment, the solar concentrator reactor system produces a thermochemical reaction of irradiated particles within an enclosed vessel volume of a solar concentrator reactor. In one aspect, the solar concentrator reactor system uses a solar concentrator to irradiate particles of a particle stream within an enclosed vessel volume of a solar concentrator reactor. The thermochemical reaction yields a chemical change of the feedstock and / or phase transition of the feedstock such as the production of a molten reacted material from a solid particulate feed. In one embodiment, the particles are a lunar regolith and the thermochemical reaction yields oxygen.

The present invention provides a novel monomer, which provides a new functionality by including a novel monomer formed by a bond between a pentagonal cyclic olefin molecule and a photosensitive molecule, may control mechanical and thermal properties, and is formed by a bond between Chemical Formula 1 and any one of Chemical Formulae 2 to 4 in order to perform chemical recycling through reversible chemical changes according to the external stimulus.

This invention relates to the field of automatic control technology for electroplating processes, and discloses an intelligent monitoring and automatic replenishment system and method for barrel plating bath solutions. The method includes: acquiring bath solution monitoring data, production load data, and replenishment execution data from the previous control cycle to generate chemical change process data of the plating solution; correcting the residual influence of each controlled component concentration based on the chemical change process data to obtain the current concentration determination result; determining the electrochemical consumption and workpiece carry-out loss based on the production load data, and predicting the concentration change trend of each controlled component; and generating channel replenishment control commands and executing the replenishment based on the process setting range and the executable range of the replenishment channel. This invention can reduce the impact of production load fluctuations and replenishment response lag on the stability of the bath solution concentration.

The invention relates to the technical field of hard alloy, and discloses a WC-Co hard alloy grinding anti-oxidation method which comprises the following steps: taking WC powder and Co powder in a certain proportion, then adding alcohol and a PEG (polyethylene glycol) auxiliary medium, fully mixing through a ball mill to obtain mixed slurry, injecting the mixed slurry into a spray drying tower, and drying to obtain the WC-Co hard alloy grinding anti-oxidation method. And fully drying the injected slurry by controlling and adjusting the temperature of an outlet in the tower to prepare powder particles. According to the WC-Co hard alloy grinding machining anti-oxidation method, high-pressure sintering is carried out on a pressed alloy pressed blank, powder particles sufficiently generate physical and chemical changes at high temperature and high pressure by accurately controlling sintering process parameters, densified sintering is achieved, good combination between WC particles and a Co binding phase can be promoted through the reasonable sintering process, and the grinding machining anti-oxidation performance of the WC-Co hard alloy is improved. And a uniform and compact internal structure is formed, the strength, hardness and toughness of the alloy are remarkably improved, and the external force resistance of the alloy is enhanced.

The present disclosure generally relates to a sensor strip (1) for use in conjunction with a medical dressing (2), wherein the sensor strip (1) comprises at least one sensing electrode (3) configured to measure the concentration of dissolved molecules in a wound, and at least a first (4a) and a second reference electrode (4b), characterized in that the at least first (4a) and second (4b) reference electrodes are individually distinct and differ by at least one property selected from set-up time, long-term-stability, life-time, and stability in response to chemical changes. The present disclosure also relates to a medical dressing assembly (5) comprising the adhesive sensor strip (1) and to a wound monitoring system comprising the medical dressing assembly (5).

The invention discloses equipment for promoting aging of receptor substances by generating kinetic energy at normal temperature and micro temperature, and relates to the technical field of aging and ripening, the equipment is composed of a basic carrier mechanism, a disturbance kinetic energy emission mechanism and an electromechanical control mechanism, and has multiple forms such as a carry-on type, a small flat plate type, a box type and a storage bearing frame type so as to meet different use scenes. The core is a dual emission source mechanism, far infrared rays are generated through the graphene layer and the functional weaving layer, and physical and chemical changes of acceptor substances are promoted. The equipment is simple and convenient to operate, easy to maintain and long in service life, is widely suitable for various substances needing to be aged, such as tea leaves, wines and wormwood products, can accelerate the aging process and improve the flavor in a relatively short time, and meanwhile, keeps the characteristics of environment friendliness and low energy consumption.

The invention is related to fabrication of transparent materials by means of ultra-short laser pulses. Method to fabricate materials transparent in most part to laser wavelength comprises forming non-centrosymmetric, non-diffracting beam by optical element that contains at least two zones of birefringent structures changing Pancharatnam-Berry Phase according to the rule specific for that particular zone. The distribution of energy, phase and polarization depends on parameters of light approaching said element. Pulse energy is selected to employ main maximum of distribution to form voids elongated in desired direction while side maxima form changes of chemical character between damages from adjacent pulses. Void damages and zones of chemical changes form desired cut line. The workpiece prepared in said manner is placed in chemically aggressive solution, in which zones affected by laser light are dissolved much faster than non-affected ones. This enables achieving cuts with aspect ration up to 1 / 50.

An automated system to monitor and maintain the water quality in a liquid cooling system for computer servers. The ACQ system includes a side stream flow system with banks of chemical sensors, digital video recording, PLC control systems, chemical addition tanks, valves, injection manifold, chemical verification of additive methods, filters, and alert systems. Water is monitored in the flow loop with sensors to establish a baseline chemical profile. Changes in water chemistry or at periodic intervals trigger an automatic adjustment of water chemistry with various chemicals held on the system in tanks. Confirmation of the injection of chemicals is accomplished with gravimetric methods and measured chemical change to the system. Deviations from baseline chemical characteristics can trigger injections of chemicals depending on the specific variation.

This invention relates to the field of polyimide materials, specifically a microporous polyimide film material containing aliphatic units and its preparation method. Addressing the problem that the good solubility of microporous polyimides containing aliphatic units makes phase separation during imidization difficult and hinders pore formation, this invention specifically grafts compounds containing ether bonds or ester groups and monohydroxy-terminated poly(dimethylsiloxane) onto the polymer molecular chain. As chemical changes occur on the molecular chain, phase separation gradually and uniformly occurs within the film, gradually forming natural pores. This ensures uniform pore size while maximizing the preservation of the intrinsic properties of polyimide. Furthermore, this invention employs the most mature and efficient conventional polyimide film production process and equipment currently available, which is more conducive to the large-scale production of porous polyimide films and the preservation of the intrinsic properties of polyimide materials, eliminating the problems of film degradation and uneven pore size caused by additional processing steps.

A thermal barrier coating removing method based on a plasma electrolysis technology belongs to the technical field of material surface treatment and comprises the following steps: constructing a specific plasma electrolysis system, preparing a solution containing specific ions, and controlling key parameters such as voltage, solution temperature and treatment time; by means of high temperature, high pressure, strong electric field and other physical and chemical environments generated by plasma, a series of physical and chemical changes of the YSZ coating are promoted, and therefore efficient removal of the coating is achieved. According to the method, the YSZ coating can be rapidly and selectively stripped, only part of the bonding layer between the substrate and the coating is left, compared with a traditional coating removal method, the plasma electrolysis technology shows remarkable advantages, and the method has the advantages of being high in removal efficiency, environmentally friendly, high in adaptability to parts with complex shapes and the like, and has good application prospects. And an innovative and practical solution is expected to be provided for repairing and reusing a thermal barrier coating of a GH4169 high-temperature alloy part in the fields of aerospace and the like.

The invention discloses a bonding end point judgment method and system based on gas deflation rate monitoring, relates to the technical field of microelectronic manufacturing, semiconductor packaging and MEMS manufacturing, and solves the technical problems that end point judgment mainly depends on indirect methods such as fixed time, specific temperature or pressure / displacement parameters and the like, and judgment is inaccurate. According to the method, a traditional method depending on indirect parameters such as fixed time and temperature is abandoned, end point judgment is carried out by monitoring the intrinsic parameter, namely the deflation rate of the target gas released by the bonding interface in real time, which directly reflects physical and chemical changes of the interface, and the real process of interface fusion and sealing can be sensitively captured; therefore, the strength, the sealing performance and the product yield of the bonding interface are improved, the excellent batch-to-batch consistency is ensured, the composite judgment logic combining the dynamic threshold value condition and the trend stability condition is adopted, intelligent and self-adaptive judgment of the process end point is achieved, and the available process window is widened.

Samples in the wells of a multi-well sample plate can be sampled by automated systems, allowing for efficient, high-throughput assessment of hundreds or thousands of samples in a relatively short period of time. However, the time taken to sample every well of a plate is nonzero, and the contents of the samples can settle, exhibit evaporation, or undergo other biological or chemical changes across the sampling time period. Cells and other particles suspended in multi-sample containers can be periodically shaken or otherwise resuspended to ameliorate these effects, but the timing and effectiveness of such intervention is often undetermined. Embodiments herein provide for improved sample resuspension and sample consistency verification by detecting the amounts of different indicator beads, having different specific gravities, in volumes extracted from the samples. The observed ratio of the bead populations is then used to verify the accuracy of cell counts measured from the sample plate and / or to determine when to resuspend the sample plate.

The present invention comprises a novel monomer formed by binding of a pentagonal ring-structured olefin molecule and a photosensitive molecule, and thus can provide new functionality and control mechanical properties and thermal properties, and provides a novel monomer formed by binding of chemical formula 1 and any one of chemical formulas 2-4 in order to enable chemical recycling through a reversible chemical change in response to an external stimulus.

A foldable display device includes a display panel including a foldable area folded based on a folding axis, and a supporting member positioning under the display panel and including a folding portion corresponding to the foldable area. The supporting member includes a fiber reinforced plastic, through-holes are defined in the folding portion, each of the through-holes includes an affected zone which is disposed at a boundary of the through-hole and in which a physical or chemical change has occurred at one surface of the supporting member, the folding portion includes a first region including an edge portion contacting the end portion of the supporting member and a second region adjacent to the first region in the folding axis direction, and a width of the affected zone of the through-holes disposed in the first region is different from that of the affected zone of the through-holes disposed in the second region.

The application belongs to the technical field of oil and gas field development, and relates to a method for simulating phase state change of a plugging agent under high temperature and high pressure conditions, which comprises the following steps: providing a simulation experiment system; preparing an experimental sample; preparing the simulation experiment system; loading the experimental sample in the simulation experiment system; setting experimental parameters of the simulation experiment system; and collecting experimental data of the simulation experiment system. The method for simulating phase state change of the plugging agent under high temperature and high pressure conditions can realize real-time dynamic observation of phase state change of the plugging agent, and is helpful for in-depth understanding of physical and chemical change processes of the plugging agent under extreme conditions.

A high voltage discharge generating a plasma wave front is disposed within a headspace over an oil-containing liquid in order to create various chemical changes within the headspace, and ultimately within the liquid in order to inactivate various microbes, synthesize new chemicals, speed separation of a mixture, and aid in oil extraction. Such a discharge may be repeated at an optimum duration and duty-cycle to maximize the chemical effects of the non-equilibrium plasma at a substantially lower temperature than for an equilibrium plasma.

The invention provides a composite phase change energy storage material and a preparation method and application thereof, and belongs to the field of heat exchange materials. The composite phase change energy storage material provided by the invention comprises the following components: erythritol, oxalic acid and sodium oxalate, the mass of the sodium oxalate is 8% of the mass of the composite phase change energy storage material; the mass of the oxalic acid is 1-3% of the mass of the composite phase change energy storage material. The raw material components of the composite phase change material provided by the invention are simply and physically mixed, and no chemical change occurs; due to the addition of sodium oxalate, the supercooling phenomenon of erythritol is inhibited to a certain extent, and the composite phase change energy storage material has good cycle stability within 145 DEG C; and when the mass fraction of sodium oxalate is 8 wt%, the permeability of the obtained composite phase change energy storage material is the lowest and is only about 5%.

The invention provides a preparation method of a thermal-mechanical coupling change-over switch material based on a wormlike material. The material comprises an elastomer matrix; a volume deformation material, wherein the volume deformation material is dispersed in the elastomer matrix; and the heat conduction filler is dispersed in the elastomer matrix. The basic principle does not depend on any specific chemical change, but utilizes physical volume deformation caused by heating of the material as driving force to actively regulate and control a heat conduction network topological structure in the composite material through the mechanical action of a micro scale, so that step type change of the heat conductivity at a specific temperature trigger point is realized.