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Multicomponent fibers are provided that include a plurality of coextruded polymeric components arranged in discrete structured domains. The polymer domains have one or more identifying characteristics that can be varied to form a plurality of different identifying patterns. A plurality of islands in the sea fibers can be provided, the plurality of fibers including two or more subsets of fibers, each subset comprising a uniquely identifiable cross sectional pattern of island domains, each pattern being formed from an array comprising a predetermined number of island domains in predetermined locations within the array, wherein each pattern is determined by classifying individual island domains within the array as present or absent from the pattern. The plurality of fibers can be meltspun simultaneously to form a filament yarn or tow.

The invention relates to a polymer blend with shape-memory characteristic comprising two different block copolymers each containing at least one hard segment and at least one soft segment, whereby the two different block copolymers comprise the same soft segment and only differ with regard to the hard segment.

The invention provides a sorbent used for reducing the content of sulfur in light hydrocarbon oil. According to weight percentage, the sorbent comprises 1-30 percent of phosphorus-modified rare earth faujasite, 5-40 percent of active metal oxide and 30-94% of carrier; wherein, the carrier comprises alumina and zinc oxide; the rare earth faujasite is modified by phosphorus and is pre-formed into porous heat-resistance solid grains together with carrier mixture; subsequently, the active metal oxide is led into the solid grains, thus preparing the sorbent; the light hydrocarbon oil raw material containing the sulfur and hydrogen donor enter a reactor filled with the sorbent; the materials are separated after reaction; the reaction products are sent to a subsequent separation system so that the product is separated; the sorbent to be regenerated after reaction is stripped, burned and regenerated; and the regenerated sorbent is reduced by the hydrogen donor and subsequently returns to the reactor so as to be circularly used. The sorbent realizes that the sulfur of light hydrocarbon oil is deeply removed, and simultaneously, the octane number of the outcome gasoline is higher, while thebenzene content is lower and the strength is higher.

The invention relates to the soil improvement technology and the environment protection technology, in particular to a soil heavy metal passivant for the facilities vegetable field and a preparation method thereof for solving the problem that due to solid heavy metal pollution, the sustainable utilization of the facilities vegetable field is influenced. The soil heavy metal passivant for the facilities vegetable field comprises the following components in percentage by weight: 10 to 30 percent of medical stone powder, 10 to 30 percent of diatomite in powder, 10 to 20 percent of zeolite powder, 20 to 30 percent of lignite and 25 to 35 percent of fly ash. The preparation method for the soil heavy metal passivant comprises the following steps: mixing the medical stone powder passing through a 80-mesh screen, the diatomite in powder passing through a 80-mesh screen and the zeolite powder passing through a 80-mesh screen with lignite and uniformly stirring the mixture; and mixing the mixture with the fly ash passing through a 80-mesh screen, sufficiently stirring the mixture and after mixing uniformly, preparing the soil heavy metal passivant. The invention has simple preparation method and achieves the effects of passivating the soil heavy metals in the facilities vegetable filed and reducing the content of heavy metals in the soil which can be utilized by the crops by synergistic effect of the components.

The present invention discloses hydrogenating catalyst of foam metal and its preparation process and application. The hydrogenating catalyst includes foamed metal carrier and active noble metal component in effective amount supported onto the carrier, the carrier is prepared through powder metallurgical process, and the active component is supported via chemical plating process and distributed homogeneously on the port surfaces of the foamed carrier. The catalyst has the advantages of high catalytic activity, firm combination between the active component and the carrier, high stability, simple preparation process, high porosity of the carrier, great specific surface area, etc. in addition, the catalyst provides sufficient gas-liquid contact area, is favorable to mass transfer between gas phase and liquid phase, may be used in catalytic rectification and possesses both reaction and separation effects.

The invention discloses a method for preparing supercapacitor carbon aerogel by the utilization of bagasse. The method includes the steps that the bagasse is used for preparing cellulose powder without xylogen and hemicellulose; the cellulose powder is used for preparing cellulose aerogel; the cellulose aerogel is carbonized to obtain carbon aerogel; the carbon aerogel is activated to obtain the supercapacitor carbon aerogel. According to the method, the industrial waste bagasse is used as raw materials, the requirements for sustainable development and environmental protection are met, and the cost of electrode materials is effectively lowered. The product prepared through the method is of a three-dimensional hierarchical pore structure; compared with a product obtained through a conventional method, the product prepared through the method is large in specific area and good in repeatability, and has higher specific capacitance and better cycling stability. The method is more suitable for preparing supercapacitor electrode materials and has wide development prospects.

The invention relates to steel for ocean engineering and a manufacturing method thereof, in particular to a steel plate with a thickness of 80mm and a low compression ratio for ocean engineering and a manufacturing method thereof. The steel plate comprises the chemical components with the weight percentages as follows: 0.12 to 0.16 percent of C, 0.20 to 0.40 percent of Si, 1.20 to 1.60 percent ofMn, smaller than or equal to 0.010 percent of P, smaller than or equal to 0.003 percent of S, 0.025 to 0.050 percent of Nb, 0.030 to 0.050 percent of V, 0.010 to 0.020 percent of Ti, smaller than or equal to 0.20 percent of Cr, 0.10 to 0.40 percent of Ni, smaller than or equal to 0.20 percent of Cu, smaller than or equal to 0.08 percent of Mo, 0.0250 to 0.050 percent of Al, smaller than or equal to 20ppm of O, smaller than or equal to 40ppm of N, smaller than or equal to 3ppm of H, and the remaining amount of Fe and inevitable impurities. A controlled rolling and cooling technology is adopted, the heating temperature before rolling is 1180 DEG C to 1250 DEG C, the rough rolling temperature is 1000 to 1100 DEG C, and the finish rolling starting temperature is 850 to 880 DEG C; laminar cooling is conducted after the rolling, the final cooling temperature is 640 to 680 DEG C, and the cooling rate is 5 to 15 DEG C/s; and normalizing treatment is conducted, the normalizing temperature is 890 to 910 DEG C, the heating rate is 1.4min/mm, and the heat preservation time is 50 to 90min. The obtained steel has the characteristics of high strength, good Z-direction lamellar tearing resistant performance, high plasticity, and the like.

The invention relates to an animal origin-free low-protein culture medium suitable for animal cell product production, comprising 24 basic metabolism nutrients, 11 vitamins, 3 transferrin substitute compounds, 5 lipid compounds, 2 nucleic acid compounds, 4 hormones and growth factors, 3 antioxidants, 1 shear-resistant protective agent, 1 pH indicator, 2 pH buffers, 9 other inorganic salts, soy hydrolysates adopted to substitute animal origin component, and composition of ferrous sulfate, ferric nitrate and EDTA-2Na adopted to substitute transferrin. The culture medium can be made by dissolving the aforementioned components in triply distilled water. The positive effects of the culture medium are as follows: the culture medium contains no animal origin component, the total protein content is lower than 10mg/L, which helps separate and purify products and is suitable for production of recombinant protein medicaments; the culture medium supports normal growth and long-term subculturing of animal cells; the culture medium can be used without adaptation, is easily prepared and is suitable for massive production of animal cell products.

The invention discloses a flue-gas denitration catalyst incapable of being deactivated by basic metallic oxides, a preparation method thereof and applications thereof. The catalyst comprises following components by weight: 70-85% of nanometer titanium dioxide, 1-3% of V2O5, 5-15% of heteropoly acid, 3-15% of glass fiber and 4-10% of an inorganic binder. In the preparation method, active components and the heteropoly acid are loaded step by step. The catalyst has high denitration performance and high performance of resistance to deactivation by the basic metallic oxides, and is particularly suitable for flue gas denitration of a power plant, an industrial boiler, an incinerator, a cement kiln, and the like, wherein the power plant, the industrial boiler, the incinerator, the cement kiln, and the like adopt biomass as fuel and contain a large amount of basic metallic oxides in flue gas.

Disclosed are novel light polarizing articles comprising a substrate, a light polarizing layer, an inorganic intermediate layer between the polarizing layer and the substrate, an optional inorganic sub-layer between the substrate and the inorganic intermediate layer, and a protective layer over the light polarizing layer, and method of making the same. Due to the presence of the inorganic intermediate layer and the optional sub-layer, adhesion of the polarizing layer is improved substantially. The light polarizing article has improved chemical, mechanical and thermal resistance. The light polarizing article can be used, for example, as ophthalmic products and in display devices.

The present invention provides coated silver nanoparticles for use as an electrically conductive material capable of sintering at lower temperatures that is able to be used even with flexible printed substrates having low heat resistance, and a manufacturing method therefor. The coated silver nanoparticles of the present invention have a mean particle diameter of 30 nm or less and are coated with protective molecules amine, and are characterized in that the weight loss rate when heated to 160° C. in thermogravimetric measurement is 30% or more. The coated silver nanoparticles of the present invention are also characterized in that a silver-colored sintered film can be formed by sintering at a temperature of 100° C. or lower for 1 hour or less. These coated silver nanoparticles are manufactured by mixing a silver compound that forms metallic silver when decomposed by heating, an alkylamine and an alkyldiamine to prepare a complex compound, and by thermally decomposing the silver compound by heating the complex compound.

The invention discloses an indoor light emitting diode (LED) illuminating lamp, which comprises a support body with a reflective curved surface. A bent part is formed on the edge of the reflective curved surface, and is extended substantially towards the edge of the opposite side of the reflective curved surface. A light emitting diode module is fixed on the bent part, and cannot be directly observed at any angle, relative to the reflective curved surface, of the support body. In addition, an electric connection device is also arranged on the support body. The arrangement of a non-light tight sealing cover on the support body is avoided. The indoor LED illuminating lamp has a light weight, a portable structure and a good illumination effect, does not produce glare, and is convenient to arrange and maintain and particularly suitable for indoor illumination.