30results about How to "Simple and repeatable" patented technology

A human body supporting structure, particularly a bicycle saddle, includes a load-bearing shell having a topside designed to face towards a user and an underside designed to face a bicycle frame. The shell includes at least one continuous sheet element having at least one differently deformable portion located at particularly stressed regions of the user's body. The sheet element is formed of a thermoplastic resin matrix with reinforcement fibers embedded therein. The differently deformable portions have a smaller thickness (Si) and a locally greater average density (pi) than the rest of the extension of the shell, said portions are formed in a thermoforming step wherein a local thickness reduction is carried out by compression and by heating said sheet element to a temperature near the melting temperature of the thermoplastic matrix. A method of making such support structure is further provided.

The invention discloses a composite film of magnetic nanoparticles and a preparation method thereof, belonging to the technical field of magnetic control of thin film materials. A magnetic nanoparticle composite film, the composite film is formed by continuous and alternate deposition of a magnetic layer and an insulating layer, and the thickness of the composite film is 15 to 100 nm; the magnetic layer is a film formed by uniformly embedding magnetic particles in an insulating medium, The composition of the magnetic particles is Fe or Fe-Ni, the volume fraction of the magnetic particles is 80-95%, the thickness of the magnetic layer is 1-20nm; the insulating layer is composed of insulating medium, and the thickness is 0.1-10nm. The magnetic nano particle composite film prepared by the invention can control the merged growth, particle size and distribution uniformity of the nano particles, so as to improve the magnetic properties while refining the crystal grains. The composite film prepared by using the invention is especially suitable for electronic components in the field of digital electronic industry and communication technology.

The invention belongs to the technical field of molecular biologics, in particular relates to a primer pair and a kit for identification or auxiliary identification on storage flour beetles, and further relates to a method for identification of the storage flour beetles. The primer pair for identification on the storage flour beetles is any one of primer pairs as follows: a primer pair consisting of sequences of SEQ ID No:1 and SEQ ID No:2 as shown in the specification, a primer pair consisting of sequences of SEQ ID No:3 and SEQ ID No:4 as shown in the specification, and a primer pair consisting of sequences of SEQ ID No:5 and SEQ ID No:6 as shown in the specification. The kit provided by the invention comprises at least one of the primer pairs. By adopting the primer pairs for identification on the storage flour beetles, and the kit comprising the prime pair, and the method, three types of storage flour beetles can be identified, specificity is good, operation is simple and repeatable, sensitivity is high and relatively stable, and ideal methods are provided for identifying the storage flour beetles.

A selenium-containing ZnO photoanode, including an FTO substrate and a ZnO:B film, a ZnO film and a ZnSe film deposited sequentially on the surface of the FTO substrate; a photoelectrochemical cell is assembled with a selenium-containing ZnO photoanode for photoelectrochemical electrolysis of water , to improve the photoelectrochemical performance of ZnO photoanode. The present invention utilizes thermal evaporation equipment to evaporate selenium atoms on the ZnO:B-ZnO photoanode on the suede surface, reduces the recombination speed of photogenerated carriers in the photoanode, and provides PEC performance; it is prepared by using MOCVD deposition system and thermal evaporation deposition system The selenium-containing ZnO photoanode has simple preparation steps, easy operation, strong repeatability and easy large-area deposition.

Method for antiforgery marking and authentication of printed products, includes the following steps: printing sample prints with a given printer of an image that is to be associated to a product (P); digitally acquiring the prints, to obtain digital images; processing the images acquired for extracting therefrom one or more intrinsic characteristics identifying the printer used; and incorporating in the printed product (P) an identification marking containing information associated to the printed product and to the characteristics identifying the printer and a print of the image.

The invention provides a catalyst for hydroxylation reaction of phenol and a preparation method thereof, belonging to the technical field of chemical engineering and relating to phenol hydroxylation co-production catechol and hydroquinone catalyzer as well as a preparation method thereof. The preparation method of the catalyst is characterized by comprising the following steps: adopting a hydrothermal synthesis method, and packaging phthalocyanine containing water-soluble groups in an MCM-41 channel in the form of molecule to prepare an immobilized homogeneous catalyst. The effects and the benefits of the invention are as follows: the preparation process of the catalyst is simple and has good repeatability; the phthalocyanine packaged in the MCM-41 channel exists in the form of molecule; metal ions or ligands without being subject to complexation do not exit in the MCM-41 channel; the phthalocyanine on the outer surface of the MCM-41 channel is easy to be eliminated; and the prepared catalyst has high capacity and good ordered channel. The catalyst has the advantages that the homogeneous catalyst has mild reaction conditions, high reactivity and good selectivity, and heterogeneouscatalyst is easy to be separated from a product and can be used repeatedly.

The invention discloses a preparation method of an impurity reference substance of ambroxol hydrochloride. The method comprises the following steps: firstly, dissolving ambroxol hydrochloride in an appropriate amount of dichloromethane solution, and then adding a certain amount of bicarbonate Sodium aqueous solution, stirred evenly, to obtain free ambroxol, organic phase separation, drying, concentration, concentrated solution was dissolved in alcohol solution, then refluxed with excess orthoformate, after condensation, (1R, 4R)‑4‑ (6,8-dibromo-3,4-dihydroquinazoline)-cyclohexanol crude product, the crude product was purified by silica gel column chromatography to obtain pure product. The present invention creatively uses orthoformate as a condensing agent. Compared with other condensing agents reported in literature, orthoformate has the advantages of good stability, high safety, low cost, high product yield, and easy purification.

The invention provides a method for preparing a thin film composite membrane with a metal-organic framework as a functional layer, comprising the following steps: 1) mixing a mixed solution of a metal-organic framework containing polyamines with alcohol to obtain a dispersion; 2) mixing step 1) The obtained dispersion is sprayed on the base film by spraying technology, so that the surface of the base film forms a uniform metal-organic framework layer; 3) spraying the polyacyl chloride solution on the surface of the metal-organic framework layer prepared in step 2) by spraying technology, The interfacial polymerization reaction is used to form a polyamide layer to fix the metal-organic framework to obtain a thin film composite membrane. The present invention applies the spraying technology to the construction of metal-organic framework thin film composite membranes, overcomes the problems of difficult scale-up and poor repeatability in the preparation of metal-organic framework thin-film composite membranes, and can prepare thinner functional layers and excellent dye retention performance The metal-organic framework thin film composite membrane prepared by MOF thin film composite membrane has a high industrial application prospect.

The invention belongs to the technical field of molecular biologics, in particular relates to a primer pair and a kit for identification or auxiliary identification on storage flour beetles, and further relates to a method for identification of the storage flour beetles. The primer pair for identification on the storage flour beetles is any one of primer pairs as follows: a primer pair consisting of sequences of SEQ ID No:1 and SEQ ID No:2 as shown in the specification, a primer pair consisting of sequences of SEQ ID No:3 and SEQ ID No:4 as shown in the specification, and a primer pair consisting of sequences of SEQ ID No:5 and SEQ ID No:6 as shown in the specification. The kit provided by the invention comprises at least one of the primer pairs. By adopting the primer pairs for identification on the storage flour beetles, and the kit comprising the prime pair, and the method, three types of storage flour beetles can be identified, specificity is good, operation is simple and repeatable, sensitivity is high and relatively stable, and ideal methods are provided for identifying the storage flour beetles.

The invention discloses a method for synthesizing metal oxide microspheres based on the Stober method, which utilizes the advantages of the Stober method in combination with the characteristics of easy hydrolysis of metal alkoxides or metal organic salts, and controls the water release rate of the chemical reaction during the synthesis process. The hydrolysis rate of metal alkoxide or metal organic salt is effectively controlled, the nucleation and growth rate of metal oxide microspheres are realized, and the nucleation and growth process is divided into two steps. The invention obtains the dispersibility of metal oxide microspheres Well, it is not easy to agglomerate, the particle size of microspheres and nanoparticles is controllable, and the size is uniform. The invention has simple synthesis process, easy operation, good repeatability and good application prospect.