37results about How to "Less precipitation" patented technology

In the present invention, when producing a dry solid of anion-modified cellulose nanofibers, the anion-modified cellulose nanofibers are caused to contain 5-300 mass% of a water-soluble polymer, and thus a dry solid of the anion-modified cellulose nanofibers having favorable redispersion properties.

A portable water treatment system and apparatus is disclosed that can effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and / or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject system and apparatus is managing the chemistry of disinfectant, contaminant and / or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.

The present invention relates to processes for producing fermentation products from starch-containing material, wherein a thermostable alpha-amylase and optionally a thermostable protease are present and / or added during liquefaction. The invention also relates to a composition suitable for use in a process of the invention.

A method that can be used in a portable system and apparatus to effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and / or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject method is managing the chemistry of disinfectant, contaminant and / or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.

A method for producing a laminated dielectric, which comprises laminating a raw material layer containing a high dielectric constant glass ceramic composition comprising from 30 to 70 mass % of a Ba—Ti compound powder having a Ti / Ba molar ratio of from 3.0 to 5.7 and from 30 to 70 mass % of an alkali free glass powder containing, by mol %, from 15 to 40% of SiO2, from 5 to 37% of B2O3, from 2 to 15% of Al2O3, from 1 to 25% of CaO+SrO, from 5 to 25% of BaO and from 25 to 50% of SiO2+Al2O3, and a raw material layer containing a low dielectric constant glass ceramic composition comprising from 10 to 70 mass % of a ceramic powder and from 30 to 90 mass % of an alkali free glass powder wherein SiO2+Al2O3 is at least 34 mol % and larger by at least 9 mol % than that in the above alkali free glass powder, followed by firing.

A method of improving the quality of liquid coming from a well that has a pump and pipe assembly. The method includes identifying a region of the well that is low in contamination and a region of the well that is high in contamination, and modifying the pump and pipe assembly so that suction of the assembly is enhanced in the region that is low in contamination and inhibited in the region that is high in contamination. Modifying the pump and pipe assembly can include coupling a suction control device to the pump and pipe assembly, and positioning the suction control device in the region of low contamination. In addition, modifying the assembly can include positioning a flow control disk in a location that is substantially between the region of low concentration and the region of high concentration.

The invention belongs to the technical field of semiconductor film preparation, and particularly relates to a preparation method of a zinc-oxide nanorod array film. The technical scheme adopted by the invention is as follows: the preparation method comprises the following steps of: (1) on the basis of adopting height (001)-oriented ZnO as a seed layer, putting the ZnO seed layer into an aqueous solution of zinc nitrate (Zn(NO3)2), polyethyleneimine (PEI) and hexamethylenetetramine (HMT) for epitaxial growth to obtain a (001) preferred-orientation ultralong ZnO nanorod array film; (2) carrying out fast annealing treatment on the film, and improving the photoluminescence performance of the ZnO array film. The technology has the advantages that the continuous growth of the ZnO nanorod at the temperature higher than 100 DEG C can be realized; due to the high-temperature growth condition, the crystallization quality of the nanorod is improved, the internal defects are obviously reduced; the zinc-oxide nanorod array film has excellent photoelectric performance, and is more conductive to being applied in photoelectric devices such as dye-sensitized solar batteries, ultraviolet detectors, field-effect transistors, light-emitting diodes and nanogenerators.

The invention discloses a preparation method of a black polyamide-imide coating, the coating and the enameled wire. Wherein, the black polyamide-imide paint comprises the following raw materials: 360-400 parts by mass of polyamide-imide resin solution, 2-10 parts by mass of black pigment and 60-100 parts by mass of amide organic solvent, and the black pigment is selected from From carbon black or reactive black. Carbon black or active black with good heat resistance is added to the black polyamide-imide paint as black pigment, and the proportion of each component is reasonable, which is indispensable. The active groups in the above black pigments can react with the polyamideimide resin in the polyamideimide resin solution to form a stable covalent bond, which is not easily destroyed under high temperature conditions. Black polyamide-imide coating with black pigment, which will not decompose at high temperature and has good coloring performance.

The present invention provides a method of obtaining Psidium guajava leaf extract standardized to phytochemicals. The extract obtained is highly soluble in water, and contains standardized phytochemicals such as, guijavarin specifically saponins and polyphenols, which may be used in food and beverage products. The method involves the specific method of filtration to obtain highly purified form of phytochemical. The extract obtained is subjected to bio-activity guided fractionation to isolate different compounds to obtain phytochemical enriched fraction followed by purification and isolation of the single phytochemical from the enriched bioactive fraction. The phytochemical is identified as guijaverin, which also exhibits anti-diabetic activity. The Psidium guajava leaf extract is useful in food and beverage industries and is used in different formulations such as chocolates, capsules, and aqua based supplement drinks.

A nonaqueous electrolyte secondary battery according to an embodiment of the present disclosure includes a negative electrode mixture layer which contains a first region located in a flat part of an electrode body and second regions located in a pair of curved parts of the electrode body, the ratio (B / A) of the packing density (B) in each of the second regions to the packing density (A) in the first region being 0.75 or more and 0.95 or less. Further, in a section passing through the center in the axial direction of the electrode body and being perpendicular to the axial direction, the ratio (SB / SA) of the sectional area (SB) of the pair of curved parts to the sectional area (SA) of the flat part is 0.28 or more and 0.32 or less.