28results about How to "Delay the aging process" patented technology

The invention provides a skin care composition with an anti-aging effect and a preparation method and application thereof, and belongs to the technical field of beauty and skincare, the composition is characterized in that retinol, a polypeptide compound, ceramide, astaxanthin and resveratrol have a synergistic effect on component combination, so that all-around anti-aging is realized, and the skin care effect is good. According to the present invention, the raw materials are respectively adopted to provide effects of collagen generation promotion, muscle contraction wrinkle solving, barrier function enhancing, free radical scavenging, melanin formation inhibition and the like, the preparation method comprises the following steps: precise temperature control, suitable stirring mode, high-precision stirrer and other advanced technologies ensure uniform mixing of the components, inert gas protection and PID temperature controller retention of the activity and the effects of the components, in the aspect of application, the composition is reasonably added into face cream, emulsion, essence and facial mask, diversified requirements are met, deep nourishing, refreshing care, efficient permeation and instant effects are respectively provided, in a word, an efficient, safe and comprehensive anti-aging scheme is provided for consumers, aging signs are improved, and the composition is wide in prospect and high in value.

The present invention relates to a weather-resistant and anti-aging polyethylene pipeline and a preparation method thereof, and belongs to the technical field of polymer materials. The pipeline adopts high-density polyethylene resin, linear low-density polyethylene resin, polyimide resin powder, nano silicon dioxide, nano hexagonal boron nitride, polybenzimidazole fiber, carnosic acid, zinc glycyrrhetinate, antioxidant 1010, hindered amine light stabilizer, polydimethylsiloxane titanate cross-linked polymer, 3-methacryloxypropyl triethoxysilane as raw materials; wherein, polyimide resin powder, carnosic acid and zinc glycyrrhetinate are uniformly mixed, and then modified at 300°C to 350°C for 30min to 60min to obtain a modified product, which can better improve the weather resistance and aging resistance of the pipeline. Each component is compatible with each other, and a special modified preparation method is adopted to better play the synergistic effect of the components, and greatly improve the weather resistance and aging resistance of the polyethylene pipeline.

The present invention relates to the technical field of degradable polymer compounds, and in particular to an anti-aging heat-resistant polyglycolide injection molding material and a preparation method thereof. The polyglycolide injection molding material comprises, by mass percentage, the following: a main polymer, 45-85%; a reinforcing polymer, 5-15%; an anti-hydrolysis agent, 0.1-1%; a lubricant, 0.1-0.5%; a filler, 5-25%; and a heterogeneous nucleating agent, 3-15%. The main polymer is PGA, the reinforcing polymer is PBS and / or PBAT, and the filler and the heterogeneous nucleating agent are both selected from talcum powder. The toughness of the injection molding material is improved due to the addition of PBS or PBAT. In addition, two types of talcum powders of different particle sizes are used as fillers and heterogeneous nucleating agents, respectively, and after compounding, the mechanical properties of the material can be improved and the aging process of the material can be delayed.

The invention discloses modified chickpea starch and a preparation method and application thereof, and belongs to the technical field of food processing.The modified chickpea starch is obtained by adding oat beta glucan into chickpea starch, then conducting pretreatment on the chickpea starch, conducting extrusion treatment on the chickpea starch through a double-screw extruder, and cooling, drying and smashing an extruded sample; wherein the addition amount of the oat beta glucan is 3 to 15 percent; the temperature of the extrusion treatment is 80-120 DEG C. The chickpea starch is subjected to compound modification by adopting a twin-screw extrusion technology in cooperation with oat beta glucan, and a starch semi-crystalline layer is deeply destroyed to realize deep regulation and control of a multi-scale structure; meanwhile, the oat beta glucan and the starch form a hydrogen bond network, so that the problem of excessive modification of chemical modification is avoided, and the thermal stability, the shear resistance and the aging resistance of the starch are remarkably improved; no chemical reagent participates in the whole process, no chemical residue risk exists, and the method has the advantages of continuous production, large treatment capacity, low energy consumption and the like.

This invention discloses a heat- and impact-resistant protective conduit for MPP cables and its preparation method, relating to the field of polymer materials technology. The components, by weight, include: 20-22 parts of a toughening dispersion made from anhydrous ethanol and terminally epoxy-terminated hyperbranched polysiloxane; 33-35 parts of a boron-nitrogen co-doped carbon dot made from citric acid, boric acid, and urea, first compounded with phytic acid and piperazine, then compounded with modified zirconium phosphate prepared by hexadecyltrimethylammonium bromide intercalation, and then modified with silane coupling agent KH-560 to form a flame retardant synergist; 12-14 parts of polyolefin elastomer; 2-2.5 parts of magnesium aluminum hydrotalcite; 0.2-0.24 parts of antioxidant; 0.2-0.3 parts of calcium stearate; 0.2-0.3 parts of polyethylene wax; and 100-120 parts of polypropylene. The introduction of the flame retardant synergist and other raw materials in this invention effectively improves flame retardancy, aging resistance, impact resistance, low-temperature resistance, and heat resistance.

The invention discloses a muscle anti-aging composition with spermidine combined with a wolfberry aqueous extract and application of the muscle anti-aging composition, and belongs to the technical field of application of bioactive substances. The composition is prepared by compounding spermidine and a Chinese wolfberry aqueous extract according to a specific ratio, and the Chinese wolfberry aqueous extract is prepared by an optimized aqueous extraction process, so that core active ingredients are reserved to a greater extent. The optimal mass ratio of spermidine to the wolfberry aqueous extract is 1: 2. Through a synergistic effect mechanism, the antioxidant capacity of senescent muscle cells is remarkably improved, and the muscle cell oxidative stress and senescence process induced by D-galactose is effectively inhibited. The composition is simple in preparation process and safe in components, can be widely applied to the fields of food, health care products and medicines, and provides a new solution for developing efficient and natural muscle anti-aging products.

The present application relates to the field of power electronics and battery management technology, and particularly relates to a self-adaptive fast charging method and system suitable for a direct current power supply. The present application breaks through the fixed parameter limitation of the traditional charging mode, automatically optimizes the output charging voltage and current instruction through an intelligent decision model, and can adapt to batteries of different temperature environments, aging degrees and types. The present application can accurately perceive the battery state, identify the battery aging characteristics and adjust the parameters accordingly, with the optimization goal of minimizing the charging loss, reducing the battery heating and relieving the internal aging, effectively prolonging the service life of the battery. At the same time, within the safety constraint of the battery, the optimal charging current is solved through the optimization algorithm, the safe charging power is maximized, the charging efficiency is greatly improved, and the charging time is significantly shortened. In addition, through real-time monitoring of the battery state, the present application can also early identify the battery abnormalities, provide data support for preventive maintenance, and improve the charging safety of the direct current screen system.

This invention relates to the field of photovoltaic technology, disclosing a photovoltaic backsheet, its preparation method, and a photovoltaic module. The photovoltaic backsheet sequentially comprises a weather-resistant outer layer, a barrier layer, and a functional inner layer. The functional inner layer includes an acidic substance adsorption and neutralization layer (located between the barrier layer and a humidity buffer layer) and a humidity buffer layer (whose upper surface contacts the lower encapsulation film of the photovoltaic module). The acidic substance adsorption and neutralization layer comprises a matrix (low-acid-value acrylic resin with an acid value ≤ 5 mg KOH / g) and alkaline nanoparticles dispersed in the matrix. The humidity buffer layer comprises a main resin and a controllable moisture-absorbing material dispersed in the main resin. The thickness ratio of the humidity buffer layer to the acidic substance neutralization layer is 1.5-2:1. Through the synergistic effect of each layer, this photovoltaic backsheet, by passively blocking moisture, actively adsorbing and neutralizing corrosion sources, and buffering humidity fluctuations, fundamentally alleviates the power degradation of the photovoltaic module caused by damp heat aging, further extending the service life of the photovoltaic module.

The application discloses weather-resistant polyester and a preparation method thereof, and relates to the technical field of polyester fibers. The weather-resistant polyester is prepared from the following components in parts by mass: 90-110 parts of polyethylene terephthalate resin, 1-2 parts of a weather-resistant agent, 2-5 parts of a dispersing agent, 1.5-3 parts of a lubricant, and 5-15 parts of a nano functional filler. The weather-resistant agent is added to efficiently absorb ultraviolet light, block photoaging chain reactions, reduce performance degradation of the polyester in adverse environments such as ultraviolet light and heat and moisture, and effectively delay the aging process.

The present application relates to the field of adaptive control and state monitoring, in particular to a health adaptive control method of a guide rail type power supply under the condition of multiple load access; the method comprises: collecting load access transient electrical parameters in real time and constructing a structured behavior sequence reflecting impact intensity, duration and recovery characteristics, and then mapping the behavior sequence to equivalent stress input and using a recursive evolution method to infer the internal electrical stress and thermal stress state of the power supply, on this basis, short-term analysis and long-term trend smoothing processing are carried out on the dual-component health state, and a multi-dimensional risk level is divided, and finally the health constraint judgment of load access, power flexible adjustment and dynamic priority scheduling of multiple load access are realized according to the health state and risk level. The present application forms a closed-loop management mechanism from behavior perception to internal state inference to health driven control, which improves the reliability and life friendliness of the power supply system under the condition of multiple load random access.

The utility model discloses a PE-HM stiffened perforated corrugated pipe, and particularly relates to the technical field of corrugated pipes, the PE-HM stiffened perforated corrugated pipe comprises a corrugated pipe main body, the outer side of the corrugated pipe main body is sleeved with a winding protection pipe, the top of the inner wall of the winding protection pipe is fixedly connected with a plurality of vertical supporting ribs, and the front side surfaces of the vertical supporting ribs are provided with a plurality of fixing holes; a winding pipe inner plate is fixedly connected between the winding protection pipe and the outer wall of the corrugated pipe body, and two reinforcing ribs are fixedly connected between the winding pipe inner plate and the vertical supporting ribs. Local compression resistance and deformation resistance are greatly improved, meanwhile, the first supporting rib and the second supporting rib penetrate through a middle hole formed by the corrugated pipe body, bending modulus can be effectively released, when the pipe is pulled or pressed, internal stress distribution is more reasonable, tensile resistance is remarkably improved, the pipe can better adapt to complex underground environments and external loads, and the service life of the pipe is prolonged. And the engineering scene with the high requirement for the mechanical property of the pipe is met.

The invention relates to the technical field of insulating oil, and particularly discloses a preparation method of modified natural ester insulating oil based on KH550 surface modified nanoparticles, and the modified natural ester insulating oil is finally obtained by mixing the KH550 surface modified nanoparticles with a base solution containing VR100 rapeseed-based insulating oil and PFAE insulating oil. The KH550 surface modified nano particle modified natural ester insulating oil has the characteristics of high breakdown voltage, low dielectric loss and low volume resistivity, and the advantage of the modified natural ester insulating oil is still stable after entering an aging stage. Compared with the prior art, the modified natural ester insulating oil based on KH550 surface modification nanoparticles shows stronger aging resistance, can precisely meet diversified requirements of electrical equipment, greatly prolongs the service life of the equipment, and solves the problems of high dielectric loss and poor oxidation stability of the existing natural ester insulating oil.

The present application relates to a kind of compound and method for delaying human umbilical cord mesenchymal stem cell senescence, belong to biological medicine technical field, to solve the technical problem of delaying human umbilical cord mesenchymal stem cell senescence.A kind of compound for delaying human umbilical cord mesenchymal stem cell senescence, compound is pyrroloquinoline quineone (PQQ).By the present application, PQQ-containing culture solution is used to culture hUC-MSCs, not only can effectively improve the activity of cell, promote cell proliferation, but also can down-regulate the expression of its senescence-related gene, maintain cell stemness, and effectively delay the replicative senescence of human umbilical cord mesenchymal stem cell, significantly improve the expansion efficiency and cell activity of in vitro culture hUC-MSCs.

The invention discloses an antioxidant composition and application thereof in cosmetics. The invention relates to an antioxidant composition which comprises quercetin and carnosine, the weight ratio of the quercetin to the carnosine is (1: 0.02)-(1: 400). The antioxidant composition provided by the invention is prepared from quercetin and carnosine, the weight ratio of the quercetin to the carnosine is (1: 0.02)-(1: 400). The anti-oxidation composition provided by the invention simultaneously contains the quercetin and the carnosine with a set amount, and the quercetin and the carnosine have a good synergistic anti-oxidation effect, so that the composition has good anti-oxidation capability, can be used as an anti-oxidation active component in the process of preparing cosmetics, and helps a user to delay the skin aging process.

The present invention belongs to the technical field of food processing, and discloses a method for improving the quality of fresh glutinous corn by inhibiting respiration and oxygen permeability. The method uses fresh ears of fresh glutinous corn as raw materials, adds 1-MCP and star anise oil in the storage stage before processing, cleans and removes impurities, pre-treats, cooks, cools, screens packaging materials for vacuum packaging, sterilizes and cools, and obtains the fresh glutinous corn. The present invention inhibits the respiration rate by adding 1-MCP (1-methylcyclopropene) and star anise oil in the storage stage before processing. And compare the oxygen permeability of three different packaging materials and the residual oxygen content under different vacuum rates, and select the most suitable vacuum packaging material for fresh glutinous corn. Thereby effectively inhibiting the aging and softening of fresh glutinous corn and the bag swelling phenomenon caused by gas residue in the vacuum packaging bag during the sterilization process, which is conducive to improving the edible quality of fresh glutinous corn.

The application provides a power distribution method, device, medium and equipment of a photovoltaic hybrid energy storage system, the method comprising: acquiring the health state of a storage battery and a super capacitor in real time; determining the power distribution weight coefficient of the storage battery and the super capacitor respectively according to the health state of the storage battery and the super capacitor by using a preset nonlinear weight function; correcting the power distribution weight coefficient respectively by using a life cost factor; determining the first distribution power of the storage battery and the super capacitor respectively according to the real-time state of charge value of the storage battery and the super capacitor; further correcting the first distribution power respectively by using the corrected power distribution weight coefficient, and determining the second distribution power of the storage battery and the super capacitor respectively. Through the application, the life cost factor is introduced in combination with the real-time health state and the real-time state of charge value of the energy storage unit, the power of the energy storage unit is distributed, the aging process of the energy storage unit is delayed, and the maintenance and replacement cost of the device is reduced.

The present invention provides a power conversion control method and system for a chip, which relates to the technical field of power management, and comprises: constructing a power conversion optimization model, randomly generating model training samples for pre-training, generating network parameters, migrating to an actual control environment, and obtaining a trained power conversion optimization model; obtaining working state parameters and an external power supply voltage of a chip to be tested, generating an optimal conversion control strategy by forward reasoning, adjusting the working voltage of the chip to be tested, judging whether a significant change occurs, and if so, regenerating the optimal conversion control strategy, otherwise packaging and generating an operation log; performing feature engineering, determining association rules, generating an optimization control rule set, training base learners and combining them to obtain an integrated optimization model, fusing them with a power conversion optimization model, obtaining candidate conversion models for optimization effect evaluation, and using the parameters of the candidate conversion model with the highest optimization effect as optimal parameters for feedback and power conversion.

The invention relates to the field of pet food, and discloses a composition containing a folium cortex eucommiae extract and application of the composition in food for old dogs. The composition containing the folium cortex eucommiae extract is prepared from 10 to 20 parts of folium cortex eucommiae extract, 15 to 30 parts of radix astragali seu hedysari extract, 15 to 30 parts of fructus lycii extract, 100 to 250 parts of fruit powder, 100 to 250 parts of vegetable powder and 60 to 200 parts of enzymolysis fresh chicken powder. The composition is applied to preparation of food for old dogs, and the addition amount is 2-3% (by weight). According to the food for the elderly dogs, the composition containing the folium cortex eucommiae extract serves as a key additive, the chronic inflammation of the pet dogs can be relieved, free radical oxidation damage of the pet dogs can be reduced, the immunity is improved, and the disease risk is reduced.

The application discloses a preparation method of whole wheat flour with controlled lipase and lipoxygenase activity, and relates to the technical field of whole wheat flour processing and storage. The method comprises the following steps: adopting DBD plasma to treat the bran of wheat grains, and then directly grinding the wheat grains to obtain the whole wheat flour. The method controls the lipase and lipoxygenase in the bran of the wheat grains, thereby stabilizing the whole wheat flour, prolonging the storage period of the whole wheat flour, and improving the nutritional quality and processing quality of the whole wheat flour. The DBD plasma treatment is performed at a power of 300-500 W for 60-180 s.

The application discloses a glass fiber reinforced polypropylene material, a preparation method and application, and belongs to the technical field of polypropylene engineering plastics. The material contains, in terms of weight parts, 40-70 parts of polypropylene resin, 20-50 parts of alkali-free continuous long glass fiber, and compounded antioxidants, compatibilizers, scratch-resistant agents, heat-resistant agents and light stabilizers. The alkali-free continuous long glass fiber has a diameter of 10-14 microns, a breaking strength of greater than or equal to 3000 MPa, and a linear density of 2400 tex or 3600 tex. The material has high strength, aging resistance and low-temperature impact resistance, and is suitable for automobile structural parts.

The invention provides a potassium permanganate loaded attapulgite / silicon dioxide aerogel gas scavenger and a preparation method, and relates to the field of food preservation, the potassium permanganate loaded attapulgite / silicon dioxide aerogel gas scavenger comprises an inorganic porous composite carrier and KMnO4 loaded on the inorganic porous composite carrier; the porous inorganic composite carrier is ATP / SiO2 aerogel formed by attapulgite ATP and SiO2, and is specifically obtained by adsorbing a KMnO4 solution by ATP modified SiO2 aerogel and drying; the technical obstacle that the SiO2 aerogel and the KMnO4 cannot be directly combined due to the fact that the SiO2 aerogel is easy to reduce the KMnO4 is overcome, the reducibility of the aerogel is eliminated, the structural stability of the material is enhanced, the formability and the thermal stability of the material are guaranteed, and the KMnO4 loading capacity of the material is greatly improved.

The application discloses a Janus active composite film and a preparation method and application thereof, and relates to the technical field of food packaging. The method is used for preparing the Janus composite film by taking pectin as a hydrophilic layer, ethyl cellulose as a hydrophobic layer and chitosan as an intermediate adhesive layer. In the film, the pectin in the hydrophilic layer can adsorb fruit respiratory moisture and release the active substance citral, so that the antibacterial and antioxidant functions are realized; the chitosan in the intermediate layer has the function of an adhesive, so that the composite film is connected more closely; and the ethyl cellulose in the hydrophobic layer can effectively block the invasion of external water vapor, air and bacteria. The asymmetric structure has excellent water locking function and can significantly inhibit fruit weight loss. The preservation method is simple and safe, can delay fruit ripening and prolong the shelf life, and has a wide application prospect.

The invention discloses a composite film for packaging high-purity polysilicon with high barrier properties and a preparation method thereof, which belongs to the field of films. The composite film includes a polyethylene-based film and a protective film, and the protective film is adhered to the outer surface of the polyethylene-based film; the protective film includes a free radical scavenger with a sustained release function, and the free radical scavenger with a sustained release function includes the following components: ascorbyl glucoside, nanoliposomes, and a modifier; the modifier is a photosensitizer-phospholipase complex, and the photosensitizer-phospholipase complex includes a phospholipase, a photosensitizer, and a coupling agent; the nanoliposome modified by the photosensitizer-phospholipase complex wraps ascorbyl glucoside inside to form a free radical scavenger with a sustained release function. The protective film in the present invention is equivalent to the coating of the polyethylene-based film, and the polyethylene-based film with the protective film added is accelerated to age for more than 12 months without any aging.

The invention provides an insulation structure and an electronic device, the insulation structure comprises a first substrate, a first conductor and a first groove, and the first substrate comprises a first surface and a second surface which are oppositely arranged; the first conductor is arranged on the first surface and / or the second surface; the first groove and at least one first conductor are positioned on the same surface, and the first groove is adjacent to the first conductor; wherein a first conductive layer is arranged on the surface of the first groove, and the first conductive layer is electrically connected with the first conductor. According to the insulation structure, by means of the first conductive layer electrically connected with the first conductor, a'three-phase point 'with concentrated field intensity in the junction area of the first conductor, the first substrate and the insulation medium is transferred to the end, away from the first conductor, of the first groove; and meanwhile, the equivalent thickness of the end part of the first conductor is increased, so that the potential line change trend of the end part of the first conductor is slowed down, the electric field intensity at the position is reduced, and the insulation reliability is improved.

The invention discloses an anti-aging nutritional food based on 2-oxoglutaric acid and application, the 2-oxoglutaric acid is reasonably proportioned with natural components such as sorbitol, maltodextrin, gamma-aminobutyric acid GABA, PS composite nervonic acid 50% and the like, a synergistic effect is exerted, and the aging process is effectively delayed. The 2-oxoglutaric acid not only has a remarkable anti-oxidation effect, but also can remove free radicals, relieve oxidative stress, enhance energy metabolism of mitochondria, improve energy supply of cells and delay cell decline. In addition, 50% of gamma-aminobutyric acid and PS composite nervonic acid in the formula are beneficial to improving neurological functions and relieving chronic inflammation, so that various physiological problems in the aging process are comprehensively resisted, and the overall health level is improved. In addition, by optimizing the production process, the bioavailability of the key components is improved, and the stability and the lasting effect of the key components in vivo are ensured.

The invention belongs to the technical field of artificial organs, and discloses an artificial bladder and a preparation method thereof.The artificial bladder comprises a collagen gel tube I, a urine storage bag and a collagen gel tube II which are sequentially connected and communicated from top to bottom; the size of the urine storage bag is gradually increased and then gradually decreased from top to bottom; the urine storage bag is composed of an elastic warp-knitted fabric and a polyurethane film; the polyurethane film covers the outer layer of the elastic warp-knitted fabric; the elastic warp-knitted fabric is divided into an upper section, a middle section and a lower section, the upper section and the lower section are of tricot stitch structures, and the middle section is of a mesh warp-knitted structure. The preparation method comprises the following steps: (a) preparing the elastic warp-knitted fabric, and reserving thread tassels I and thread tassels II at two ends of the elastic warp-knitted fabric in the preparation process; (b) film covering; (c) sewing; and (d) preparing a collagen gel tube I and a collagen gel tube II. The artificial bladder is simple in structure and preparation method, and the defects in the prior art are effectively overcome.

The application discloses a kind of genes RhNADP-LIKE for regulating the aging of Chinese rose flower, and specifically relates to the technical field of molecular biology and horticultural plant physiology.The application filters the bottle insertion life phenotype data of 358 tetraploid Chinese rose core germplasm by whole genome association analysis (GWAS), and identifies the gene RhNADP-LIKE significantly associated with aging.The gene accelerates the petal aging process by regulating the accumulation of reactive oxygen species (ROS).After inhibiting the expression of RhNADP-LIKE using virus-induced gene silencing (VIGS) technology, the opening period of Chinese rose flower is extended by about 2 days, and the ROS level is significantly reduced.The application provides a molecular target for extending the bottle insertion life of Chinese rose, which can be applied to gene editing breeding or the development of environmentally friendly preservatives, reducing the dependence on chemical agents, and improving the economic benefits and sustainable development potential of cut flower industry.

The utility model discloses a multi-grid folding fruit packaging box, including folding packaging box main part, the inner bottom of folding packaging box main part places humidity adjusting pad, humidity adjusting pad is polyester fiber blended water -retaining cotton material, the side of folding packaging box main part is far apart all is fixedly connected with plastic frame, the side of folding packaging box main part is far apart all is set up with a plurality of air hole, every plastic frame all is equipped with two quick -release structure, every plastic frame's inside all slidingly connected with the absorption box, every absorption box's inside all is equipped with ethylene absorbent. The utility model discloses, through setting up absorption box and sealing ring, sealing ring seals, makes the ethylene absorbent in absorption box inside absorption folding packaging box main part inside ethylene gas, reduces the maturation and senescence process of fruit, avoids the softening, the discoloration, the flavor drop of fruit, even overripe and rotten.