119 results about "Duration of effect" patented technology

The invention is directed to oral modified/controlled release drug formulations which provide a rapid initial onset of effect and a prolonged duration of effect. Preferably, the peak concentration is lower than that provided by the reference standard for immediate release formulations of the drug, and the duration of effect falls rapidly at the end of the dosing interval.

The invention is directed to oral modified/controlled release methylphenidate formulations which provide a rapid initial onset of effect and a prolonged duration of effect. Preferably, the peak concentration is lower than that provided by the reference standard for immediate release methylphenidate formulations, and the duration of effect falls rapidly at the end of the dosing interval so as not to affect the appetite of the patient at dinner nor the patient's sleep thereafter.

The invention provides a Chinese medicinal composition for treating aches and skin pruritus, which is prepared from 48 kinds of Chinese medicinal herbs including cicada shell, licorice root, capsule of weeping forsythia, selfheal, baikal skullcap root, futokadsura stem, cassia twig, isatic root, banksia rose, ledebouriella root, rose, pricklyash peel, fresh ginger, Ligusticum wallichii, honeysuckle flower, dahurian angelica root, dried rehmannia root, Schizonepeta tenuifolia, malt, lilyturf root, mulberry twigs, buck grass, safflower, dried orange peel, curculigo rhizome, mimosa-tree bark, honey-suckle stem, pubescent angelica root, atractylodes rhizome, basket fern, notopterygium root, radix paeoniae rubrathe, Chinese angelica root, poria cocos, siberian cocklebur fruit, loquat leaf, Bupleurum root, Chinese mugwort leafmulberry leaf, cnidium fruit, Chinese honey locust, greater celandine, root of herbaceous peony, mentha, boneol and campeachy wood.

The invention provides a preparation method of a superhydrophobic fabric or superhydrophobic non-woven fabric, which comprises the following step of: enabling a fabric containing C-H bonds or a non-woven fabric containing C-H bonds to be subjected to irradiation grafting reaction with a monomer containing long-chain alkane, thus obtaining the superhydrophobic fabric or superhydrophobic non-woven fabric, wherein the monomer containing long-chain alkane is a compound as shown in general formula (1), X is hydrogen or methyl, and n is 10-17, preferably 13-17. The invention overcomes the defects that the existing preparation process of the superhydrophobic fabric or non-woven fabric is complicated, the duration time of the modification effect is short, and the superhydrophobic fabric or non-woven fabric is intolerant of washing, is of certain toxicity, is high in cost and the like, thereby providing a washing-resistant permanent superhydrophobic fabric or non-woven fabric and a preparationmethod thereof. Since the used monomer is a non-fluorine monomer having the advantages of low toxicity, low cost and the like, the invention is beneficial to large-scale industrial production. The general formula (1) is shown in the specification.

The invention discloses a hydrophilic modification method of fabrics or nonwoven fabrics, which is characterized by comprising the following steps of: immersing the fabrics or nonwoven fabrics in a water solution containing a water soluble crosslinking agent and persulfates, irradiating by ultraviolet light, and taking out to obtain the products, wherein the fabrics or nonwoven fabrics are synthetic fabrics or nonwoven fabrics containing C-H bonds, or synthetic fiber and natural fiber blended fabrics or nonwoven fabrics containing C-H bonds. The method of the invention overcomes the defects of long response time, influenced material surface regularity, complex operation and post processing, short modified effect duration time, narrow application range and the like. The hydrophilic modification method has the advantage of short response time, simple operation and post processing and low cost, and the obtained products have surface regularity, excellent hydrophilicity and hygroscopicityand permanent hydrophilicity. The invention also provides modified fabrics or nonwoven fabrics prepared by using the method.

The invention provides a preparation method of a super-hydrophobic fabric or a super-hydrophobic non-woven fabric. The preparation method comprises the steps of: mixing a fabric containing C-H bonds or a non-woven fabric containing C-H bonds with an alcohol solution of a monomer containing fluorine, and performing a radiation grafting reaction at an anaerobic condition so as o obtain a super-hydrophobic fabric or a super-hydrophobic non-woven fabric, wherein the monomer containing fluorine is a compound shown in general formula (1) in which X represents hydrogen, fluorine, chlorine, bromine, iodine, methyl or cyan, Y represents O or NH, m represents 1-10 and n represents 1-10. The invention further discloses a super-hydrophobic fabric or a super-hydrophobic non-woven fabric prepared by the method. The super-hydrophobic fabric and the super-hydrophobic non-woven fabric disclosed by the invention overcome the defects that the existing super-hydrophobic fabric or super-hydrophobic non-woven fabric is complex to prepare in technique, has short modification effect duration time and is not washing-durable, so the super-hydrophobic fabric or the super-hydrophobic non-woven fabric disclosed by the invention is a fabric or a non-woven fabric which has washing fastness, is foldable and has permanent super hydrophobicity.

A method for rapid elimination of water blackening and smell disclosed in the invention, comprises the following steps: pressurizing pure oxygen to 0.3 MPa or more, through a mixture, rapidly mixing the pressurized pure oxygen with the flow extracted from a body of water to be treated by an axial flow pump, so as to obtain high-concentration oxygen-dissolved water; arranging a plurality of rotarynozzles in the body of water to be treated, intensively mixing the high-concentration oxygen-dissolved water output by the mixture with the body of water to be treated through the rotary nozzles to allow the dissolved oxygen concentration of the body of water to be treated to reach more than 20mg/L. According to the invention, by utilizing the pressurization of pure oxygen and the combination of static pressure and dynamic pressure, the dissolved oxygen concentration of the body of water is increased rapidly. The invention has the advantages of high efficient at absorbing oxygen, action fast,and effect long, with good application prospect.

The invention relates to a bird dispelling device for a power transmission line, in particular to a bird dispelling method and a bird dispelling device for a power transmission line. The device comprises a detection module, a micro-processing module, a power amplifying module and a sounding module. The device can be used for detecting birds, has a large effective protection area, and can be used for effectively dispelling birds entering a dangerous area; moreover, an intelligent learning capability is realized in the technology, and optimal bird dispelling sound wave frequency is updated continuously, so that a better bird dispelling effect is achieved, and the adaptability of birds is effectively reduced; the device has the advantages of long bird dispelling duration, low cost, high reliability, freeness from maintenance and the like, and has a good application prospect.

The present application discloses a method and device for manufacturing a nail patch. The method manufactures a solid nail patch corresponding to the nail patch model through 3D printing technology according to the nail patch model. Through the above method, no matter what the pattern in the nail patch required by the customer is, the nail patch required by the customer can be printed out, which effectively reduces the requirement for the manicurist's hand-painted skills and ensures the quality of the nail art. , and can effectively deal with delicate and complex customized patterns, and the nail stickers are all integrally formed by 3D printing technology, which can effectively prevent the surface accessories from falling off, and the nail effect lasts for a long time.

The present invention provides a water filtration device, which includes: a filter tank 100 with an upper opening and a partition wall 110 inside, more than one filter plate 200, a filter layer 400, a plurality of air injection pipes p, a maintenance hole 500 and a water storage The filter plate 200 is located above the filter tank 100 and the partition wall 110 to close the filter tank 100; the air injection pipe p is located below the filter plate 200; the maintenance hole 500 is located in the The middle part of the filter plate 200 ; the filter layer 400 is located above the filter plate 200 ; the water storage part is located above the filter layer 400 and the filter plate 200 . The water filtering equipment provided by the present invention avoids stagnant water areas during backwashing, improves the quality of purified water and enhances the trust of consumers. The filter plate is easy to install, can not only improve work efficiency but also shorten construction period and save installation cost.

The invention relates to a granule containing chlorantraniliprole and monosultap, which is prepared from the following components by weight: 0.01-5% of chlorantraniliprole, 0.1-15% of monosultap, 0.1-10% of chitin, 1-15% of additive, 0.5-10% of binder and the balance of carrier. The granule can be used for preventing the soil insects, the nematodes and the overground insects of crops including sugar cane, peanuts, corn, bananas and tomatoes, has an obvious synergetic effect, a good prevention effect and long duration of effect and can significantly improve the crop root knot nematode and pathogen prevention effect, promote the crop root development and plant growth and improve the crop yield and quality.

The invention discloses a novel pickling corrosion inhibitor O,O'-di-substituted dithiophosphate-N, N-diethyl ammonium. Two substituted groups are separately selected from the following substituted groups: aryl, substituted aryl and aryl substituted alkyl; and the carbon atom number of one of two substituted groups is less than 40. The invention also discloses application of the O,O'-di-substituted dithiophosphate-N, N-diethyl ammonium serving as a metal pickling corrosion inhibitor. The O,O'-di-substituted dithiophosphate-N, N-diethyl ammonium is added into a pickling medium with different concentration to make the concentration be between 40 and 160 mg/L so as to achieve the effective metal corrosion inhibiting effect; and the pickling corrosion inhibitor disclosed by the invention has long lasting effect and wide applicable acidity range.

The invention discloses a formaldehyde removing agent of biological enzyme. The formaldehyde removing agent of biological enzyme is prepared from the following components by weight percentage: 1 to 2% of biological enzyme composition, 1 to 3% of plant extract, 0.5 to 1% of protective agent, 1 to 2% of buffering agent, 0.1 to 0.3% of preservative, 0.1 to 0.3% of essence, the balance of water; thebiological enzyme is formaldehyde dehydrogenase, polyphenol oxidase and superoxide dismutase. The formaldehyde removing agent of biological enzyme is safe and non-toxic, harmless to humans and animals, and biodegradable and does not cause secondary pollution. The formaldehyde removing agent of biological enzyme is mainly used in indoor living environment and car to remove formaldehyde, can greatlyreduce the formaldehyde produced by furniture, leather, blankets and the like, and also has an effect of reducing benzene pollutants. The formaldehyde removing agent of biological enzyme has a long-lasting effect and has no corrosive effect on the surface of a treated object.

An improved laxative composition is provided having efficacy with reduced negative side-effects. The laxative composition is also provided with agents that promote healthy intestinal and liver function, reduce carbohydrate absorption and have antioxidant capacity. A method is also provided for reducing the negative side-effects associated with Anthranoid-based laxative compositions. A method is further provided for increasing the efficacy and/or duration of effect of Anthranoid-based laxative compositions.

The present invention belongs to the technical field of aircraft icing ice-shaped measurement, and especially relates to a developing agent for aircraft icing ice-shaped three-dimensional scanning anda preparation method thereof. The developing agent comprises TiO2 powder, PMMA powder and a dichloromethane solvent. The preparation method comprises the steps of: pouring the TiO2 powder and the PMMA powder into a beaker, pouring dichloromethane into the beaker along a beaker wall by employing a measuring cylinder, and performing pre-stirring with pouring to obtain pre-mixed solution; and employing a ball-milling blender to perform stirring of the pre-mixed solution to make the developing agent. The problem is solved that the ice-shaped light transmittance is too high and cannot meet the laser three-dimensional scanning requirement, the provided developing agent has good adhesive force for the ice shape so that the ice-shaped light transmittance is greatly reduced, light shielding effectduration is long, secondary icing or ice melting cannot be caused, the developing agent for aircraft icing ice-shaped three-dimensional scanning is environmentally friendly and low-toxic, easy to spray, and has a very important practical significance for promotion of the application of the laser three-dimensional scanning technology at the aircraft icing ice-shaped three-dimensional measurement technology.

The invention discloses a paper depickling solvent which is prepared from a cotton tree leaves extractive, soluble tetraborate, nanometer metal hydroxide, metal bicarbonate and water. The invention also discloses a preparation method of the paper depickling solvent. The preparation method comprises the following steps of (1) adding the cotton tree leaves extractive in water, and performing full stirring and mixing and filtration; (2) adding the nanometer metal hydroxide, the metal bicarbonate and the soluble tetraborate in a filtrate obtained in the step (1), and performing full stirring and ultrasonic treatment for 0.5-1.5h; and (3) performing still standing for ageing for 1-12h to obtain the paper depickling solvent. The paper depickling solvent provided by the invention is environmentally friendly and harmless without safety influences on a human body and an environment, is thorough and uniform in depickling, has enough alkali residues, is long in effect duration time and is difficult in acid return, does not have damage to paper, has certain antibacterial activity and is beneficial to long-term storage of the paper after being used.

The invention discloses collagen gel and a preparation method thereof. The collagen gel is prepared from the following raw materials: 20 to 80 percent of collagen solution, 80 to 20 percent of PCL microspheres, and 0 to 1 percent of lidocaine. The collagen gel of the invention adopts the raw materials which can be completely degraded and can be completely absorbed by the human body after the collagen gel is implanted in the human body; and moreover, the degradation period of the PCL is relatively long and can reach up to 2 years, so that the lasting time of the effect of the collagen gel is long, and the application frequency of the collagen gel is reduced.