505 results about "Bio based" patented technology

The invention discloses a full life cycle test method, system and equipment for a variable pitch system of a wind generating set, and the method comprises the steps: constructing a digital twin model of the variable pitch system, and simulating the performance of the variable pitch system under an extreme working condition through the digital twin model; deploying a self-adaptive nano sensor network, and testing and optimizing the variable pitch system; carrying out remote installation and calibration guidance on the tested and optimized variable pitch system by utilizing an augmented reality technology; through an autonomous learning monitoring mechanism, all-weather monitoring is carried out on the pitch system which is operated after installation and calibration, and potential problems and damage in operation of the pitch system are predicted; based on a biological inspiration self-repairing technology, repairing potential damage of the variable pitch system; the method comprises the following steps: acquiring operation data of a variable pitch system, proposing an upgrading scheme for the variable pitch system by virtue of an expert diagnosis mechanism, and verifying the upgrading scheme through a digital twinborn model; and an intelligent decommissioning evaluation platform is established, the residual life of the variable pitch system is evaluated, and a recovery scheme is formulated.

The invention relates to the field of town sewage treatment, in particular to a town sewage carbon-nitrogen-phosphorus synergistic advanced treatment method based on biological manganese oxide. The method comprises the following steps: S1, configuring an upward flow denitrification filter tank; s2, a starting stage: taking a mixed solution of secondary effluent and secondary influent water of an actual town sewage treatment plant and manganese sulfate as influent water of a denitrification filter tank with the manganese concentration of 3.0 mg / L, inoculating hydrolytic acidification bacteria, denitrifying bacteria, anaerobic ammonium oxidation bacteria and manganese oxidation bacteria into the denitrification filter tank, and gradually increasing the ratio of the secondary influent water to the secondary effluent water in the mixed solution to 3%; s3, a stable stage: taking a mixed solution of secondary effluent and secondary inlet water of an actual town sewage treatment plant and manganese sulfate as inlet water of the denitrification filter tank, controlling the manganese concentration to be 3.0 mg / L, controlling the hydraulic retention time to be 3-4 hours, and controlling the backwashing period to be 9-11 days. The method can synchronously and efficiently remove carbon, nitrogen and phosphorus in the secondary effluent of the actual town sewage treatment plant at low cost.

The invention discloses a biochar-based slow-release fertilizer and a preparation method thereof, and relates to the technical field of fertilizer production, the biochar-based slow-release fertilizer comprises a core, a carrier layer, a biological layer and a protective layer, the core is composed of macroelements, microelements and a nitrification inhibitor; the carrier layer comprises graphene quantum dot modified charcoal, chitosan, glycerol and cyclodextrin grafted starch; the biological layer is prepared from magnetic Fe3O4 and humic acid nanoparticles, alginic acid oligosaccharide and diatomite; the protective layer comprises a polylactic acid-polycaprolactone block copolymer, acetone, calcium lignosulphonate, a dynamic covalent cross-linking agent gelatin, nano cellulose and an anti-blocking agent. Therefore, by adopting the polylactic acid-polycaprolactone (PLA-PCL)-based segmented copolymer and the dynamic covalent network cross-linking agent, the self-repairing property is endowed. The slow-release fertilizer provided by the invention realizes precise regulation and control of the fertilizer efficiency release rate through a multi-level synergistic effect, has the functions of soil remediation and stress resistance, and significantly improves the utilization efficiency of the fertilizer and the crop adaptability.

The invention discloses a biomass pyrolysis product prediction method based on a machine learning model, and the method comprises the steps: collecting data under different biomass pyrolysis conditions, and carrying out the processing of the data, and obtaining target data; constructing a machine learning model, and training the machine learning model based on the target data to obtain a target machine learning model; according to the target machine learning model, predicting the yield of the biochar and the content of nitrogen, phosphorus and potassium, and obtaining a prediction result of the yield of the biochar and the composition of nitrogen, phosphorus and potassium elements. By introducing the machine learning model and combining the data enhancement technology, high-precision prediction can be performed on the yield of the biochar and the contents of nitrogen, phosphorus and potassium of the biochar based on the element composition and pyrolysis process parameters of the biomass raw material, and technical support is provided for optimization design of the biomass pyrolysis process and application of the biochar fertilizer.

The disclosed device can receive a biosignal and, using user input predictions based on the biosignal, pre-render a display frame. The device can also subsequently receive a user input, output the pre-rendered display frame based on the user input confirming the user input predictions and flush the pre-rendered display frame otherwise. The device can also modulate computing performance and power based on computing demands predicted from the biosignal. Various other methods, systems, and computer-readable media are also disclosed.

The invention relates to the technical field of intelligent door locks, and provides an intelligent unlocking method based on biological feature recognition and environment perception. The intelligent unlocking method comprises the steps that environment information around an intelligent door lock and a first biological feature of a user are obtained; evaluating the safety state of the environment of the intelligent door lock based on the environment information to obtain a target safety state, detecting abnormal activity signs of a user to obtain a detection result of the abnormal activity signs of the user, and integrating the target safety state and the detection result of the abnormal activity signs of the user into an environment sensing result; determining an unlocking risk rating according to the environment perception result, and determining an intelligent unlocking condition according to the unlocking risk rating and the environment perception result; and based on the intelligent unlocking condition, comparing the first biological feature with a pre-stored user feature template, and unlocking the intelligent door lock when the first biological feature is matched with the user feature template, or acquiring a second biological feature and unlocking the intelligent door lock when the first biological feature and the second biological feature are matched with the user feature template.

The invention relates to a livestock health early warning and intelligent driving mechanical auxiliary system based on bio-electricity signal monitoring, and belongs to the technical field of animal husbandry intelligent management. Aiming at the problems of single parameter, strong driving irritability and low efficiency of a traditional monitoring method, the system is used for generating a health score in real time by adopting a CNN-LSTM hybrid model through data fusion of a bio-electricity signal acquisition module (electrocardio, myoelectricity and respiratory frequency) and an environment sensor, and driving an intelligent driving machine in combination with a deep reinforcement learning algorithm, so that the driving effect is improved. The abnormal livestock is guided to be isolated in a non-intrusive mode through ultrasonic directional wave beams and low-intensity laser. The monitoring accuracy is larger than or equal to 95%, the driving efficiency is improved by 60%, all-weather stable operation (availability is larger than or equal to 98%) is achieved, the epidemic disease risk and animal stress are effectively reduced, and an efficient intelligent solution is provided for large-scale breeding.

The invention relates to a foamable composition comprising at least one epoxy resin, at least one hardener for epoxy resins, at least one chemical and / or physical blowing agent and at least one biogenic raw material, as well as their use as composite materials and a method for producing a foamed composition.

The invention relates to the technical field of 3D printing, and discloses an environment-friendly packaging box rapid forming method and system based on biodegradable materials, and the method comprises the steps that a thermal-structure coupling finite element model is established; based on the thermal-structural coupling model, a multi-objective optimization model is constructed, and structural design parameters and initial printing path configuration are obtained; training a printing control strategy by utilizing a strategy optimization algorithm; according to the structural design parameters, the printing path configuration and the printing control strategy, a layer-by-layer printing path and a supporting structure configuration scheme matched with the printing object are generated; and the 3D printing process is executed, and closed-loop adjustment is conducted according to the control strategy. According to the method, the thermal-structural coupling finite element model based on the biodegradable material is constructed, and changes of a temperature field, a stress field and a thermal strain field in the printing process are accurately simulated, so that a printing path and supporting structure configuration are optimized, the printing precision is improved, structural instability caused by thermal deformation and interlayer stress is avoided, and the strength and stability of an object are ensured.

The invention relates to the technical field of soilless culture substrates, in particular to a soilless culture substrate based on biochar and mushroom dreg resource utilization and a preparation method and application of the soilless culture substrate. The soilless culture substrate comprises the following raw materials in parts by mass: 30-50 parts of mushroom dregs, 20-30 parts of charcoal, 10-15 parts of vermiculite, 8-12 parts of perlite, 5-10 parts of humic acid and 2-5 parts of trace elements. The soilless culture substrate can effectively utilize biochar and mushroom dreg resources, provides a good physical environment and sufficient nutrient supply for plant growth, improves the stress resistance and yield quality of plants, reduces dependence on traditional non-renewable substrate resources, and reduces the pressure of agricultural wastes on the environment.

The present invention belongs to the technical field of bioreactors, and in particular relates to a high-density culture method for porcine myoblasts based on a bioreactor. Through the steps of resuscitating porcine myoblasts, cell-microcarrier attachment treatment, bioreactor stirring mode conversion, counting and centrifugal cell collection, the porcine myoblasts are difficult to reach a high density in a bioreactor, and a harvest density of 10^6 cells / mL is achieved in the bioreactor, meeting the requirements of cell culture meat production on cell yield; at the same time, the culture time is shortened by more than 20%, greatly saving energy consumption cost and time cost.

The present invention relates to a method for producing a carbon material having a sulfur content of less than 0.8 wt%, a BET specific surface area of less than 20 m2 / g, and an average grain size (Lc) in the direction of the c-axis of less than # imgabs0 # as determined using X-ray diffraction. The method comprises the steps of: providing a bio-based carbon precursor, the bio-based carbon precursor having a sulfur content in the range of 1.0 to 5.0 wt%; subjecting the bio-based carbon precursor to a heat treatment in an inert atmosphere to obtain a carbon material; and subjecting the carbon material to a desulfurization treatment in an inert atmosphere comprising hydrogen and / or at least one carbonaceous gas to remove sulfur from the carbon material and obtain a carbon material having a sulfur content of less than 0.8 wt%.

The invention discloses sewage purification equipment based on a biological membrane combined process and a purification method thereof.The equipment comprises a main body unit, a cleaning unit, a water isolation unit and a vibration unit, the main body unit comprises a sewage purification box, a biological membrane layer fixedly connected with the interior of the sewage purification box, an activated carbon adsorption layer and a filtering layer; the cleaning unit is located in the sewage purification box and used for cleaning the filtering layer, the water isolation unit is arranged in the cleaning unit, fixedly connected with the inner top wall of the sewage purification box and used for isolating sewage and avoiding hindering cleaning of the cleaning unit, and the vibration unit is connected with the cleaning unit and the water isolation unit. According to the invention, when the scraping plate is used for scraping impurities, the sewage purification operation does not need to be interrupted, and the impurities are not easy to flow everywhere along with water flow when the impurities are scraped, so that the impurity cleaning effect can be improved, in addition, when the impurities are scraped to the impurity collecting box, the impurities can be ensured not to be attached to the scraping plate, and the impurity cleaning effect is further improved.

The invention relates to the technical field of soil improvement materials, and provides a soil heavy metal pollution repairing agent based on biomass power plant ash, which mainly comprises surface modified porous biomass power plant ash, polymer modified bentonite, a soil modified repairing agent and clay minerals. The surface modified porous biomass power plant ash is obtained through gamma-aminopropyltriethoxysilane and humic acid modified porous biomass power plant ash clustering, and the polymer modified bentonite is bentonite modified by acrylic acid and sodium carboxymethyl cellulose through a polymerization reaction. The preparation method comprises the steps of pretreatment of biomass power plant ash, liquid nitrogen freezing, freeze drying, porous structure formation, surface modification and the like. The components are mixed, granulated and molded, so that the obtained remediation agent can effectively reduce the bio-availability of heavy metals in soil, reduce the heavy metal absorption of crops and improve the soil environment quality.

The invention relates to a high and steep rock slope ecological restoration structure based on a biological solidification technology. The high and steep rock slope ecological restoration structure comprises a rock slope body, anchor rods, a metal net, a square solid containing cavity, a biological solidification coarse-grained soil layer, a vegetation base layer and an n-shaped component. The metal net is flatly laid on the surface of the rock slope body and is fixed on the surface of the rock slope body through a plurality of anchor rods; the plurality of anchor rods are transversely arranged in rows and longitudinally arranged in columns along the rock slope body, and are driven into a stable rock stratum of the rock slope body; the square solid containing cavity is fixedly connected with a rock slope body through an n-shaped component embedded into the rock body. The biological curing coarse-grained soil layer is formed by curing coarse-grained soil which is laid in the square solid containing cavity and contains biological slurry by spraying bean enzyme treatment liquid; the vegetation base layer is sprayed and seeded on the upper surface of the biological curing coarse-grained soil layer. The ecological restoration structure for the high and steep rock slope is good in strength and integrity, convenient and efficient to construct, good in ecological restoration effect and high in ecological stability and continuity.

In one aspect, a biochar-based water purification system includes a first cover configured to receive a liquid source. A housing element is configured to house a plurality of the interior elements. A plurality of interior elements includes one or more filtration elements that include at least one biochar-based water purification system. A second cover is configured to release a filtered liquid.

Surfactants for use in formulations and processes suitable for hydrocarbon recovery. These formulations, include formulations suitable for fracking, enhancing oil and or gas recovery, and the recovery and or production of bio-based oils.

The invention relates to the field of sewage purification, in particular to a sewage purifier based on a biofilm process, which comprises a sewage purification tank, a rotating wheel, a guide wheel I, glass fiber cloth, a cultivation frame and the like, the sewage purification tank is rotationally connected with a rotating wheel; the sewage purification tank is rotationally connected with a guide wheel I; the sewage purification tank is rotationally connected with a guide wheel II; all the rotating wheels and the guide wheels I are jointly wound with glass fiber cloth; the sewage purification pool is fixedly connected with a cultivation frame, and the glass fiber cloth penetrates through the cultivation frame. Microorganisms newly added to the glass fiber cloth are cultivated into a state of forming a biological membrane through the cultivation frame, and the glass fiber cloth rotates anticlockwise, so that the glass fiber cloth newly entering the sewage purification tank each time has a relatively good sewage purification effect; the problem that in the prior art, a soft membrane base material newly added with microorganisms cannot achieve the purification effect after a biological membrane is formed is avoided.

The invention belongs to the technical field of wastewater treatment and recycling, and relates to a low-pressure ultrafiltration sewage treatment method and device based on bioelectrochemical enhancement and application. The treatment device consists of a water inlet tank, a constant water level water tank, a cathode, a resistor, a membrane assembly, a biological filter cake layer, a pre-filtering layer-anode, an ultrafiltration membrane, a water collecting device, a data acquisition module and a computer. The treatment device is used for treating effluent of a secondary sedimentation tank of a sewage plant and tail water of livestock and poultry breeding wastewater; on the basis of retaining nitrogen and phosphorus resources, deep removal of heavy metals and antibiotics is realized, propagation of resistance genes is inhibited, and safe reuse of nitrogen and phosphorus resources in effluent of sewage plants and tail water of livestock and poultry breeding wastewater can be realized. In the invention, low-pressure ultrafiltration adopts transmembrane pressure difference generated by gravitational potential energy to realize continuous flow filtration, coupled bioelectrochemistry utilizes electric energy generated by biodegradation of organic matters to realize reduction of heavy metals and deep removal of reinforced antibiotics, and the method has the advantages of greenness, low carbon and sustainability.

A construct includes a biocompatible polymer-based shape morphing hydrogel or cell condensate that is configured to undergo multiple, reversible, and / or controllable different shape transformations over time via either pre-programmed design or user-controlled environmental condition alterations, wherein the hydrogel is cytocompatible and, upon degradation, produces substantially non-toxic products.

The invention provides a bio-based bi-component polyurethane transparent flame-retardant pouring sealant and a preparation method and application thereof, the bio-based bi-component polyurethane transparent flame-retardant pouring sealant comprises a component A and a component B. The component A comprises the following components by weight: 20-50 parts of bio-based polyol; 30 to 50 parts of a bio-based auxiliary agent; 4 to 12 parts of other auxiliary agents; the component B is prepared from the following component in parts by weight: 10 to 20 parts of isocyanate. According to the invention, by adding the bio-based polyol and the bio-based auxiliary agent in a specific amount and matching the bio-based polyol and the bio-based auxiliary agent in a specific amount with the isocyanate in a specific amount, the prepared pouring sealant has a better flame-retardant effect, the safety of the polyurethane transparent pouring sealant is improved, and the pouring sealant can meet some application scenarios requiring high safety.

The invention relates to the technical field of deep-sea mining ecological restoration, in particular to a biological substratum-based deep-sea mining ecological restoration capability and potential evaluation system, which comprises a data acquisition module, a biological substratum identification module and a deep-sea ecological dynamic monitoring module, the data acquisition module acquires water quality parameters of a deep-sea mining area; the biological substratum identification module identifies and analyzes population distribution, density and form of the biological substratum and evaluates growth and health conditions of the biological substratum; the deep sea ecology dynamic monitoring module analyzes the microclimate and sediment dynamic change of a mining area, and evaluates the influence of environment change on the restoration capability of the biological substratum. According to the method, the progress and potential of ecological restoration can be accurately predicted, and powerful data support is provided for scientific decision and environmental protection measures of deep sea ecological restoration.

The invention discloses hydrogen slow-release particles based on biochar-magnesium hydride and a preparation method of the hydrogen slow-release particles. The hydrogen slow-release particles are formed by mixing magnesium hydride with the purity larger than 99%, biochar and an adhesive. The high-purity magnesium hydride finished product is adopted, the environment heavy metal pollution repairing function of the biochar is utilized, the hydrogen release time in magnesium hydride is prolonged, crop growth and environment pollution repairing are promoted through controllable slow-release hydrogen, and crop growth is promoted.

A method for valorizing refuse material comprises a selective pyrolysis, based on: a first step of pyrolysis of the biogenic fraction, with at least one subsequent condensation step, and a second step of pyrolysis of the synthetic fraction with at least one subsequent condensation step; wherein the first and second pyrolysis steps are configured in series; wherein the first pyrolysis step is configured to extract at least a fraction of biogenic combustible gas which continues to the first condensation step, and a fraction of solid material that is transported to the second step of pyrolysis of the synthetic fraction, which is carried out at a higher temperature than the first pyrolysis step, and which is configured to obtain a fraction of synthetic combustible gas which continues to the second condensation step, and a fraction of solid material.

The utility model discloses a wastewater treatment device based on biochar-based filter bed treatment, and relates to the technical field of wastewater treatment. The wastewater treatment device based on biochar-based filter bed treatment comprises a plurality of filter cavities and two collection dispersion cylinders, connectors are arranged at the upper end and the lower end of the filtering cavity, the connectors at the upper end and the lower end of the filtering cavity are connected with a water inlet branch pipe and a water outlet branch pipe respectively, a biochar-based filtering bed is arranged in the filtering cavity, and the two collecting and dispersing cylinders are located on the upper side and the lower side of the filtering cavity respectively. Wastewater to be treated is divided into multiple flow directions and flows from the filter cavities, so that the wastewater is shunted, and when the charcoal-based filter beds in one or more filter cavities need to be replaced, the water inlet branch pipes and the water outlet branch pipes on the two sides of the corresponding filter cavities are blocked, then the filter cavities are taken down, and the charcoal-based filter beds in the filter cavities are treated. In the process, the machine does not need to be stopped, and the waste water in the filtering cavity is distributed into other normal and practical filtering cavities.

Surfactants for use in formulations and processes suitable for hydrocarbon recovery. These formulations, include formulations suitable for fracking, enhancing oil and or gas recovery, and the recovery and or production of bio-based oils.

A composition of which the main surfactant content is mainly bio based shows a high cleaning capability in the cleaning of textiles or fabrics. Biosurfactants and fatty acid salts further support the cleaning capability for cleaning of fatty stains. A method for cleaning a surface of an article includes combining the composition and the article with water, maintaining a temperature of the water of from 15° C. to 100° C., over a period of from 15 minutes to 240 minutes, while tentatively moving the article in the water, separating the article from the water, and optionally rinsing the article with further water.

The invention discloses a black land plough layer soil construction method based on a bio-organic fertilizer, and aims to solve the problems of black land soil degradation and fertility decline. The functional bio-organic fertilizer containing nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria is prepared, and scientific and accurate fertilization is realized by combining soil physicochemical property determination and mathematical model optimization. The method specifically comprises the following steps: measuring the nutrient content and pH value of soil and fertilizer, constructing a mathematical model to obtain optimized application parameters, and continuously improving the soil fertility and productivity by dynamically adjusting the fertilizer application amount and evaluating the soil fertility, thereby reducing the dependence on chemical fertilizer, improving the soil structure and improving the crop yield. The method has the characteristics of environmental friendliness, accuracy, high efficiency and high sustainability.

The invention relates to the technical field of digital twinborn and agricultural information, and discloses a digital twinborn growth simulation and optimization method for safflower seedling breeding, and the method comprises the following steps: constructing individual digital twinborn bodies fusing genotypes, phenotypes and multi-dimensional environmental perception data; performing hybrid modeling in combination with the mechanism model and a depth time sequence neural network, and correcting growth prediction deviation in real time; and based on multi-objective optimization of biomass, medicinal component content and water efficiency, generating a precise cultivation regulation and control instruction. The system comprises a data acquisition unit, a twin construction unit, an environment fusion unit, a hybrid modeling unit, a visualization unit, an optimization decision unit and an instruction execution unit. According to the method, through closed-loop intelligent regulation and control, the yield, quality and resource utilization efficiency of safflower seedling breeding are remarkably improved.

The invention discloses a jacquard vamp material based on bio-based degradable polylactic acid (PLA) and a preparation method thereof, and relates to the technical field of shoe materials. The jacquard vamp material is of a three-layer jacquard structure formed by integrally weaving PLA composite filaments through a jacquard warp knitting machine. The PLA composite filament is prepared from the following raw materials in parts by weight: 80-95 parts of polylactic acid (PLA) slices, 5-15 parts of poly (butylene adipate / terephthalate) (PBAT), 3-8 parts of a flexibilizer, 1-3 parts of a compatilizer, 0.5-2 parts of an anti-hydrolysis agent and 0.5-1.5 parts of a lubricant. According to the invention, the bio-based PLA is used as a main raw material and is matched with degradable auxiliaries such as PBAT, so that the whole vamp material can be completely biodegraded under a composting condition, the problem of environmental pollution of a traditional vamp is fundamentally solved, and meanwhile, through blending modification of PBAT and the flexibilizer, the flexibility and impact resistance of the PLA material are remarkably improved, and the vamp material has good application prospects. The requirements of the vamp material on softness, wear resistance and durability can be met.