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2740 results about "Absorption rate" patented technology

Ceramic imitation cement component, ceramic imitation cement product and preparation method thereof

The invention discloses a ceramic imitation cement, a ceramic imitation cement product and a preparation method thereof. The ceramic imitation cement comprises the following components in percentage by mass: 35 to 50 percent of hydraulic adhesive, 15 to 43 percent of aggregate particles, 8 to 28 percent of filler, 0.5 to 8 percent of polymer, 0.3 to 3 percent of fiber, 0.5 to 1.3 percent of water reducing agent, 0.2 to 1.3 percent of additive and the balance of water. The ceramic imitation cement product of the invention has the characteristics of high intensity, toughness, rigidity, non-inflammability, low water absorption rate, high resistance to freezing and thawing, antibiotic property, insect resistance, and mould resistance, looks like ceramic but does not need sintering or glazing, has decorating property of an FC plate but does not have the defects of the FC plate and has more functions; and the ceramic imitation cement product can be taken as inner wall and outer wall decorating plates of buildings, floors, outer wall hung plates, wall plates of subway stations and tunnel wall plates. The preparation method has the advantages of simpleness, convenience, practicability, small investment, quick response and capability of preparing ceramic imitation cement plates, plain concrete plates, and terrazzo slabs and flexible cement plates of various colors.

High-efficiency fluorescent converted LED light source and backlight module

ActiveCN101162745AIncreased efficiency of fluorescence conversionExpected clean light outputSolid-state devicesSpectral modifiersAngle of incidenceFluorescence
A high efficient fluorescence conversion LED light source and backlight module comprise an LED arranged in a reflecting cup or the bottom of a collimating lens, and a fluorescent powder layer with predetermined thickness which is arranged on the top and is scattered with or coated with fluorescent powders and in particular comprises a first cut-off filter which is arranged between the fluorescent powder layer and the top of the reflecting cup or the collimating lens. Photons from the predetermined wavelength range of the LED penetrate the cut-off filter with an angle of incidence smaller than the predetermined value, while the backward fluorescence photons are reflected by the cut-off filter, thereby improving the fluorescence extraction efficiency. In addition, a second cut-off filter which has the opposite wave property is arranged above the fluorescent powder layer in order that the fluorescence photons can penetrate the second cut-off filter; a chamber structure consisting of two filters has multiple reflections on the incentive photons which are not absorbed by fluorescent powders to fully improve the absorption rate of the incentive photons. With the invention, the product has prominent fluorescence conversion effect and is simple in structure and technique, and convenient in realization of low cost.

Small molecule polypeptide Ca-chelate of fishbone and preparation method

InactiveCN102406176AHigh calcium chelation rateIncreased bioabsorptionFood preparationSolubilitySide effect
The invention discloses small molecule polypeptide Ca-chelate of fishbone, which belongs to the field of functional food or additive. The method for preparing the small molecule polypeptide Ca-chelate of the fishbone comprises the following steps: boiling the fishbone at high temperature and high pressure; pulping to obtain the fishbone paste; utilizing the compound protease to execute enzymolysis; centrifuging to obtain the liquid supernatant and the sediment; filtering the liquid supernatant to obtain the small molecule polypeptide liquid of the fishbone; executing the composite acid acidification through citric acid and lactic acid for the sediment so as to obtain the fishbone calcium liquid; mixing the small molecule polypeptide liquid of the fishbone with the fishbone calcium liquid; executing the chelation at 40-50 degrees centigrade while the pH value is 7.5-8.5; and drying to obtain the small molecule polypeptide Ca-chelate of the fishbone. The invention has high Ca-chelate rate which reaches over 90%, and has high biological absorption rate of the calcium which reaches over 70%. The invention has no side effects, has good flavor, can be directly absorbed from intestinal mucosa after being eaten, solves the problems that the solubility of the traditional calcium source is bad, the absorption rate is low and the side effect is large, and solves the problem of producing calculi. In addition, the invention has a simple preparation method and low cost.

Watersoluble polyurethane adsorption agent containing sulfhydryl group for removing hydrargyrum and preparation method thereof

The present invention pertains to the technical field of wastewater treatment, in particular to hydrophilic polyurethane absorbent containing sulfhydryl for removing Hg and a preparation method thereof. The present invention takes water and volatile non-water solvent as the mixed solvent, introduces chloromethyl thiirane monomer as the cross linking agent into hydrophilic polyurethane dispersion dope and finally carries out coating and solidification, thus obtaining the hydrophilic polyurethane absorbent containing sulfhydryl. The present invention has the advantages of simple and convenient technique, high production efficiency, high product quality and low cost. The composition of the prepared absorbent is controllable with the size of 50 to 250mm, the prepared absorbent has the advantages of large specific surface area, strong Hg-ion absorption capacity and rapid absorption rate. In addition, the present invention with excellent high-concentration Hg-ion absorption capacity and trace Hg-ion absorption capacity, good mechanical property and damage ratio lower than 0.5 percent after being used for a plurality of times can be applied to Hg, lead, cadmium and other heavy metal industrial wastewater treatment within a more extensive concentration range.

Fully automated control system for type 1 diabetes

An augmented, adaptive algorithm utilizing model predictive control (MPC) is developed for closed-loop glucose control in type 1 diabetes. A linear empirical input-output subject model is used with an MPC algorithm to regulate blood glucose online, where the subject model is recursively adapted, and the control signal for delivery of insulin and a counter-regulatory agent such as glucagon is based solely on online glucose concentration measurements. The MPC signal is synthesized by optimizing an augmented objective function that minimizes local insulin accumulation in the subcutaneous depot and control signal aggressiveness, while simultaneously regulating glucose concentration to a preset reference set point. The mathematical formulation governing the subcutaneous accumulation of administered insulin is derived based on nominal temporal values pertaining to the pharmacokinetics (time-course of activity) of insulin in human, in terms of its absorption rate, peak absorption time, and overall time of action. The MPC algorithm is also formulated to provide control action with an integral effect, and in essence minimizes overall drug consumption. When employed as a modulator in an automated integrated glucose-control system for type 1 diabetes, the control algorithm provides the system with self-learning capability that enables it to operate under unrestricted activity of the subject.
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