11results about How to "Improve nature" patented technology

The present invention discloses a method for regenerating waste lubricating oil, and relates to the technical field of waste lubricating oil regeneration. The present invention utilizes modified attapulgite to perform adsorption decolorization and heavy metal removal of waste lubricating oil, so that the doped heavy metal salt forms inorganic matter attached to the surface of attapulgite, and the metal ions in the waste lubricating oil can be efficiently removed, greatly reducing the metal content in the waste lubricating oil; the present invention subjects the pretreated waste lubricating oil to two refining treatments, and adopts a high-temperature nitrogen spraying method to the waste lubricating oil to accelerate the vaporization reaction of the impurity components and improve the properties of the regenerated oil products, and then performs a second hydrogenation refining treatment to hydrogenate and saturate non-ideal components such as nitrogen-containing compounds and sulfur-containing compounds, and vaporize and remove them at high temperature; the present invention combines the pretreatment process with the hydrogenation post-treatment process to improve the properties of the regenerated oil products, and the process flow is simple, which is superior to the multi-tower equipment process of the prior art.

The invention relates to the technical field of food gel, in particular to bamboo shoot insoluble dietary fiber, pea protein and alginate ternary composite hydrogel as well as a preparation method and application thereof. By adjusting the pH value of a reaction system (a pH driving method) and introducing the insoluble dietary fibers into the binary gel, the use of a chemical cross-linking agent is reduced, and the property of the hydrogel is improved. The finally obtained hydrogel has the following advantages: the structure becomes more compact and uniform, and the deformability is also reduced; the mechanical strength is good, and possibility is provided for encapsulation of bioactive molecules; higher thermal stability is shown; the crystallinity is higher, and the mechanical strength and the functional stability are improved; the water retention capability of a gel network in the structure can be enhanced, and the porous structure is beneficial to stabilizing water molecules.

The invention discloses a mutant of glutamate decarboxylase as well as a recombinant thallus and application thereof, and belongs to the field of protein engineering. According to the invention, a glutamate decarboxylase mutant M5 is obtained through a gene engineering method; the optimal temperature of the enzyme is increased by 10 DEG C while the thermal stability of the glutamate decarboxylase mutant is improved, and the mutant can play a very good catalytic effect without being in a buffer salt solution, so that an effective way is provided for industrial production of gamma-aminobutyric acid by an enzyme method; meanwhile, the problem that the product yield is low under the conventional production condition due to low thermal stability or too low optimal catalytic temperature when the glutamate decarboxylase is applied is also solved to a great extent.

This invention provides a method, device, electronic device, and storage medium for identifying road debris, belonging to the field of signal processing technology. The method includes: acquiring the original vibration signals corresponding to multiple grating measuring points in a grating array vibration sensing optical cable deployed on the road; determining a first energy for each grating measuring point within a first time window based on the original vibration signal; determining the occurrence time of a debris event within the first time window based on the first energy of each grating measuring point; determining a second energy for each grating measuring point within a second time window, wherein the occurrence time falls within the second time window; and determining the location of the debris on the road based on the second energy. Because the location of the debris is determined based on the energy distribution of multiple grating measuring points within a precise time window, the possibility of false alarms and missed alarms is reduced, improving the accuracy and efficiency of debris identification.

The utility model relates to the field of greening isolation, and discloses a flexible greening isolation device for rural road decoration, which comprises a support column, a connecting groove, a sliding groove and a clamping groove are arranged in the support column, a barrier is arranged on one side of the support column, and a plurality of grooves are arranged on the other side of the support column. The two sides of the fence are fixedly connected with connecting pins, the outer walls of the connecting pins are slidably connected into the sliding grooves, the interiors of the connecting pins are fixedly connected with limiting columns, the outer walls of the limiting columns are symmetrically provided with limiting rings in a sliding connection mode, the outer walls of the limiting rings are provided with limiting assemblies, and the interiors of the connecting pins are provided with limiting grooves. According to the flexible greening isolation device, the fences are rapidly connected with the supporting columns through the connecting pins, then the clamping blocks in the connecting pins are embedded into the clamping grooves for locking, the rapid connecting and fixing effect is achieved, the problem that the fences are prone to being separated from the supporting columns due to the fact that no locking device exists is solved, and the connecting strength of the flexible greening isolation device is improved.

The invention relates to the field of sponges, in particular to a novel graphene inner warming graphene sponge which comprises a sponge block, a graphene layer wraps the sponge block, a soft cushion plate is fixedly connected to the upper end of the graphene layer, a breathable layer wraps the soft cushion plate, a filter layer wraps the breathable layer, and a sterilization layer wraps the filter layer. The air permeable layer is integrally composed of a silicon dioxide nano coating, and the air permeable layer, the filter layer, the sterilization layer, the anti-static layer and the flame-retardant layer can be mutually wrapped by various materials, so that the overall property of the sponge is improved, and the air permeable layer, the filter layer, the sterilization layer, the anti-static layer and the flame-retardant layer are integrally formed. The graphene inner warming sponge has the advantages that the flame retardance of the graphene inner warming sponge is improved, the graphene inner warming sponge is antistatic and continuously sterilized during use, external harmful gas is adsorbed and filtered, multiple layers are breathable under the action of the breathable layers and the air holes, and the overall use performance is improved.

The invention relates to the technical field of biotin preparations, and particularly discloses a biotin dispersion and a composition thereof, and the biotin dispersion is prepared from the following raw materials in parts by weight: 1-10 parts of biotin, 80-120 parts of hydrophilic polymer and 0.01-1 part of disodium hydrogen phosphate. The invention also discloses the biotin dispersion composition which is prepared from the following raw materials in parts by weight: 80 to 135 parts of biotin dispersion, 200 to 300 parts of lactose, 5 to 15 parts of povidone K30, 100 to 120 parts of enteric coating polymer, 1 to 5 parts of propylene glycol and 80 to 100 parts of talcum powder. The preparation process is simple, the stability in the preparation process is good, the biotin can be directly absorbed and utilized by small intestines, the absorption rate and bioavailability of the biotin are improved, and the preparation method is suitable for large-scale production.

The invention discloses a malonic acid preparation method, which comprises: carrying out an oxidation reaction on 3-hydracrylic acid under the action of an oxygen-containing atmosphere and a chemical catalyst at a temperature of 50-100 DEG C to obtain malonic acid, wherein the chemical catalyst is a supported catalyst in which an oxide carrier is supported with an active metal component; the oxide carrier is selected from one or more of TiO2, CeO2, ZrO2, Fe2O3 and SiO2, and the active metal component is selected from one or more of Pd, Pt, Cu and Au. Compared with the existing malonic acid chemical method preparation route, the malonic acid preparation method has the advantages of low raw material cost, low reaction temperature, simple reaction process, high safety and the like; the glycerol which is nontoxic and harmless to human bodies, safe to the environment and stable in property is adopted as the raw material, so that the safety of the process is greatly improved, and meanwhile, the additional value of the glycerol is increased.

This invention discloses a method for preparing finasteride tablets, relating to the field of pharmaceutical preparation technology. The method includes: preparing a surfactant into an aqueous solution, adding a first-prescription amount of binder to form a binder suspension; premixing finasteride, a filler, a first-prescription amount of disintegrant, and a second-prescription amount of binder to obtain a premixed material; adding the binder suspension to the premixed material for wet granulation to obtain wet granules; drying and sizing the wet granules, then mixing them with a second-prescription amount of disintegrant and lubricant, and compressing the mixture into tablets. This invention, while ensuring rapid tablet release, achieves the production of tablets with suitable hardness and stable properties at a relatively low compression pressure. Furthermore, this invention utilizes non-organic solvents for granulation, significantly improving the stability, safety, and industrial production efficiency of the final product without the addition of non-standard excipients.

The invention relates to the technical field of functional degradable polylactic acid compositions, in particular to a polylactic acid composition capable of being degraded in a triggered mode and a preparation method of the polylactic acid composition. A polylactic acid composition capable of being degraded in a triggered mode is obtained by mixing polylactic acid and a photon absorption accelerant, and the photon absorption accelerant is porphyrin derivative modified perovskite CsPbBr3. The polylactic acid composition capable of being degraded in a triggered mode has an extremely excellent light degradation effect.

The application discloses a graphene / TA1 composite material and a preparation method thereof, and belongs to the technical field of graphene / titanium-based composite material preparation. In order to solve the problem of the rolled high-strength plastic graphene / TA1 composite material in a high-load service environment, Sn powder, Y2O3 powder and TA1 titanium alloy powder are uniformly mixed, then the mixture is added into a ball mill tank, graphene powder is added in batches, and multiple ball milling is carried out to obtain a composite powder; a mold filled with the composite powder is placed in a sintering furnace, an axial pressure is applied to the mold, and plasma sintering treatment is carried out to obtain a sintered composite material blank; the sintered composite material blank is subjected to oxidation scale removal and round billet cutting treatment, and then is subjected to sandpaper polishing to obtain a hot rolling initial sample; and multiple pass rolling is carried out until the total reduction is 75%, and then air cooling is carried out to room temperature to obtain the graphene / TA1 composite material. The application improves the overall properties of the high-strength plastic graphene / TA1 composite material.