242results about How to "Improve aggregation effect" patented technology

The invention discloses an oxygen-release material for ground water in situ aerobic bioremediation, and a preparation method for the same, belonging to the field of oxygen-release material. The oxygen-release material is composed of the following component parts by weight: 11-14 parts of edible calcium peroxide by weight, 10 parts of sodium bentonite by weight, 1-3 parts of monopotassium phosphate by weight, 2-6 parts of ammonium sulfate by weight, 15 parts of river sand by weight and the coagulant (the rest), wherein total weight of the above materials is 70 parts by weight. The preparation method comprises the following steps of: weighing the calcium peroxide, the sodium bentonite, the monopotassium phosphate and the ammonium sulfate, fully mixing and uniformly dispersing the weighed materials; adding the cement and the river sand, adding water after mixing the cement and the river sand uniformly to prepare the mixture into a massive material, and naturally drying by air. The oxygen-release material has high total oxygen-release quantity and smooth oxygen-release speed, effectively prolongs the oxygen-release time, and improves the change cycle of the oxygen-release filler. The pH value and nutrient substances, such as N, P and the like in the water all meet the requirements on growth of aerobic microorganisms.

An ink jet ink which can form images whose bleeding resistance is high and whose bronzing phenomenon is suppressed, is provided. The ink is an ink jet ink for use together with a pigment ink. The ink jet ink is characterized in that: the ink jet ink contains a coloring material, a polyvalent metal and a water-soluble organic solvent(s); the coloring material is at least a compound represented by the general formula (I); a content (mol / g) of the polyvalent metal is 2.0×10−6 mol / g or more and 4.0×10−4 mol / g or less; a total content (mass %) of the water-soluble organic solvent(s) is 25.0 mass % or more with respect to the total mass of the ink; and in a dispersion distance distribution, measured by a small angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 0.5 mass %, a dispersion distance d75 value corresponding to 75% of a distribution is 12.60 nm or less.

The invention provides a modulation method based on an elliptically spherical function. With the design of the multiplexing time-domain orthogonal base band modulation waveform, a multiplexing base band premodulation is carried out. Signals after the base band premodulation at each branch are superimposed and synthesized in a time domain to form a path of signals, and then sine-wave carrier modulation is carried out to move the frequency spectrum of the signal to radiation frequency band and then the frequency spectrum is output. The waveform of the base band modulation adopts the elliptically spherical function with limited time-domain duration time and approximately finite frequency band. The frequency band of a communication system can rapidly approach to the Nyquist rate with the increase in the number of the time-domain orthogonal base band modulation waveform. Simultaneously, the system has better power utilization rate and is convenient and easy to realize.

The invention provides a method for recovering iron and aluminum from a waste ternary lithium ion battery, which comprises the following steps: crushing the waste ternary lithium ion battery, adding sulfuric acid and hydrogen peroxide into the crushed waste ternary lithium ion battery, and stirring to react to obtain a leachate; adding iron powder into the leachate, performing a stirring reaction,and filtering to obtain crude copper powder and copper removal liquid; successively adding an oxidizing agent and alkali carbonate into the copper removal liquid, and performing heat-preservation aging and filtration to obtain iron-aluminum slag and purified liquid. The iron-aluminum slag obtained through the method is good in gathering effect, and the removal rate of iron and aluminum is high.In addition, alkali carbonate is used for replacing alkali in the prior art in the iron and aluminum removing process, the technological process is environmentally friendly, and the recycling cost islow.

The invention discloses a hyper-spectral image classification method based on local manifold embedding. The hyper-spectral image classification method includes the steps: 1) reconstructing data points of a training sample by the aid of similar neighbor points; 2) constructing an intra-class graph, an intra-class reconstruction graph, an inter-class graph and an inter-class reconstruction graph by the aid of neighborhood of the data points and reconstruction points corresponding to neighborhood points; 3) keeping structures of the intra-class graph and the intra-class reconstruction graph unchanged in a low-dimensional embedding space, and inhibiting the structural relation between the inter-class graph and the inter-class reconstruction graph to obtain a projection matrix from a high-dimensional space to the low-dimensional space; 4) acquiring low-dimensional embedding characteristics of the training sample; 5) reducing dimensionality of high-dimensional data of a testing sample by the projection matrix to obtain testing sample low-dimensional embedding; 6) classifying testing sample low-dimensional embedding by a classifier to obtain hyper-spectral image classification results. Internal implication attributes of hyper-spectral images can be more effectively represented, diagnostic characteristics can be more effectively extracted, and data divisibility is improved.

The invention relates to application of a hemostasis material of sodium alga acid and sodium alga acid added calcium salt or zinc salt composition in wound surface hemostasis. The sodium alga acid composition comprises 50-100 parts by weight of sodium alga acid and 0.5-50 parts by weight of calcium salt. The invention also provides a hemostasis material prepared from the sodium alga acid composition and at least one pharmaceutically acceptable solvent, carrier and / or excipient. The sodium alga acid composition and the hemostasis material in the invention have the characteristics of rapid hemostasis, good biocompatibility, biodegradation absorbability, simpleness in treatment, no need of debridement, low cost and the like, and is suitable for the hemostasis in the wound surface, especially in war wound surface.

A method and equipment for improving quality of vegetable oil through continuous crystallization, crystal growing, and dewaxing refining are disclosed. Oil and grease dewaxing is performed through eight-stage staged cooling crystallization, six-stage constant-temperature crystal growing, and two-stage low-temperature filtration. Special crystallization and crystal growing devices are adopted, interferences of transmission on crystallization and crystal growing processes are effectively solved as a whole, the heat conduction efficiency is higher, crystal damage caused by a transmission device and relative movement in an oil and grease system is less, energy consumption is lower, crystal dispersibility is significantly improved, and aggregation effects of wax, esters and high-melting-point fat are better. The method and the equipment can further improve dewaxing, winterization and dewaxing effects in crystallization and crystal growing processes of wax-containing vegetable oil, prolong oil product refrigeration time to 60 h or above, improve flavor and quality of oil and make oil palatability good. The method and the equipment are suitable for corn oil, sunflower seed oil, soybean oil, rice bran oil, and the like, and are particularly suitable for corn oil, sunflower seed oil, and the like.

The invention belongs to the optical time domain reflectometer detection technical field and provides a linear frequency modulation signal-based optical fiber optical time domain reflectometer detection system and method. The method includes the following steps that: linear frequency modulation signals and clock synchronization pulses are generated and are respectively transmitted to a modulator and an optical switch; the modulator modulates continuous optical signals emitted by a light source according to the linear frequency modulation signals so as to generate continuous linear frequency modulation optical signals; the optical switch intercepts the continuous linear frequency modulation optical signals into linear frequency modulation optical signals of specified time durations, and thelinear frequency modulation optical signals of specified time durations are inputted into a transmission optical fiber through a circulator; and fractional Fourier transformation is performed on received digital signals, so that a detection result is obtained. According to the system and method of the invention, the linear frequency modulation signals which have been subjected to the fractional Fourier transformation have high aggregation performance, and noise and nonlinear frequency modulation signals do not aggregate after being subjected to fractional Fourier transformation, and therefore, and the linear frequency modulation signals can be extracted, and the detection sensitivity and dynamic range of an OTDR (Optical Time Domain Reflectometer) can be improved.

The invention relates to the field of asphalt modification, and particularly relates to styrene-butadiene latex composite modified asphalt and a preparation method thereof. The preparation method comprises the following steps of: heating road asphalt till the road asphalt completely flows; then adding styrene-butadiene latex and an MAC (Media Access Control) asphalt modifying agent to the road asphalt, starting stirring till the MAC asphalt modifying agent is uniformly melted. The styrene-butadiene latex composite modified asphalt prepared through the method has excellent high-low temperature resistant comprehensive property, and can not only be applied to a high-temperature area, but also be applied to a cold area. Besides, the preparation method of the composite modified asphalt can complete the mixed reaction process by only adopting common stirring equipment without adopting high-shear grinding equipment, thus the preparation method has the advantages of simple process, small investment, low energy consumption and site blending, and is convenient to operate and apply.

The invention provides a method for acquiring time-frequency distribution based on self-filtering frequency conversion experience modal decomposition, belongs to the signal processing technology fieldand especially relates to the method for acquiring the time-frequency distribution. The method is characterized by using experience modal decomposition (EMD) and Teager conversion to acquire the spectrogram of the time-frequency distribution; using an experience modal to decompose a self-filtering characteristic; and adopting a continuous frequency reducing / frequency increasing method to restraina modal aliasing problem generated in an experience modal decomposition process, and acquiring a good time frequency distribution map. In the prior art, during experience modal decomposition processing, instantaneous frequencies are crossed and multi-component mixing signals generate modal-aliasing so that time frequency distribution detection signal parameter precision is low. In the invention,the above problem is solved. The method can be used for the time frequency analysis of signals.

The invention relates to a silk reeling device and particularly relates to a raw silk-heatable type false twisting device which is mainly used for solving the technical problems of the prior art such as non-uniform croisure quality caused by manual croisure twisting, influence on raw silk quality due to different croisure effects, complicated operation and low labor productivity. The device provided by the invention comprises an end attaching wing (1), wherein an end collector (2) is arranged above the end attaching wing (1); a lower friction roller (3) and a sector friction roller (4) are sequentially arranged above the end collector; the outer side surface of the sector friction roller is coated with a layer of antiskid rubber (5); an electric heating wire (6) is arranged on the inner side of the sector friction roller; a silk guide device is arranged above the sector friction roller; and a small roller (7) is arranged above the silk guide device.

The invention relates the synthesizing and performance of dehydroabietic-acid-based dipeptide surfactant R-6-Phe and provides the molecular structure and synthesizing method of the novel dehydroabietic-acid-based dipeptide surfactant. The molecular structure of the R-6-Phe is as shown in the specification. The surfactant has the advantages that the surfactant is good in aggregation ability, the critical micelle concentration of the surfactant at 25 DEG C is 1.01mmol*L<-1>, and the surfactant is good in emulsifying performance; the main synthesizing raw material dehydroabietic acid and amino acid are natural products which are renewable, biodegradable, rich in source and easy in structural modification, conforms to the environment protection concept of green chemistry and the like, and the surfactant is applicable to fields such as detergent, household chemicals and emulsifiers.

The invention discloses a vertical centrifugal oil separator. The vertical centrifugal oil separator comprises a barrel, a separating barrel, an insulating barrel, a filter screen, a rotary shaft, rotary shaft sleeves, an air inlet, spiral guiding vanes, oil collecting metal wires, oil collecting plates, an automatic oil returning valve, a fixing support, an air outlet and an oil discharging groove. According to the vertical centrifugal oil separator, the spiral oil collecting metal wires are added on existing spiral guiding vanes of a centrifugal oil separator, and the spiral guiding vanes of the centrifugal oil separator are changed to be in a rotatable structure mode, so that the separating effect of the existing centrifugal oil separator is greatly improved; a separating filer screen of the existing centrifugal oil separator is changed to be in the shape of a funnel, so that the aggregating property of oil drops on the filter screen is improved and the oil drops on the filter screen can flow down quickly, and thus the separating effect of the filter screen on the small-sized oil drops is improved.