243results about How to "Improve aggregation effect" patented technology

The invention discloses a social network friend recommendation method based on community discovery, belongs to the fields of data mining, social networks and the like, and aims at solving the problem that the social network characteristic is not taken into account in individual recommendation. The method comprises the following steps: acquiring user history data in the social network, modeling hobbies and interests of users to obtain a preference vector set of all users, clustering the users according to the preference vectors representing the hobbies and the interests of the users and the preference vectors representing the hobbies and the interests of friends of the users in the user preference vector set, finding an overlap area of the hobbies and the interests of the users and the friends in the social network, acquiring an initial target user list of friends to be recommended according to the overlap area of the hobbies and the interests of the users and the friends, filtering and sequencing the obtained initial target user list of friends to be recommended, thereby obtaining a final list of friends to be recommended. As friends are recommended according to the hobbies and the interests and the friend relationship of the users, the method is more applicable to social networks.

The invention relates to a method and a system for refining crude brine. The method comprises the following steps of: performing pre-reaction; pressurizing and dissolving gas; pretreating; performing post reaction; filtering by using a membrane; and filtering off residual slag particles by using a membrane filter to obtain the refined brine. By the method and the system for refining crude brine, under the condition of not introducing new impurities, various metal impurity ions are efficiently flocculated and precipitated, so that problems of great mineral salt impurity fluctuation and overproof Fe and Al ions are solved, the high quality of the finished brine product and the high-efficiency and normal operation of subsequent ion-exchange membrane electrolysis can be ensured, and the aim that mineral salt replaces sea salt to serve as chlor-alkali electrolysis raw salt is fulfilled; moreover, brine sludge emission and treatment cost can be obviously reduced, and the method and the system have good emission reduction effect and good environment-friendly property.

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.

The invention relates to the technical field of medicines and discloses the new use of salvianolic acid A, in particular the use of salvianolic acid A in the preparation of medicines for increasing cyclic adenosine monophosphate (CAMP) content in soterocyte and / or blood plasma, preparation of medicines for inhibiting activity of phosphodiesterase in soterocyte, preparation of medicines for promoting activity of adenylate activating enzyme and preparation of medicines for inhibiting calcium ion concentration in cytoplasm of soterocyte, in particular preparation of medicines for preventing or treating myocardial ischemia-reperfusion injury caused by thrombolysis, percutaneous coronary intervention, coronary artery bypass surgery and the like.

The invention relates to an optimal design method for a spliced and welded plate automobile door, and aims to rationally design the spliced and welded plate automobile door, reduce the number of parts, reduce the weight of the automobile door, improve the rigidity of the automobile door and improve the collision safety of an automobile. The optimal design method comprises the following steps of: determining arrangement of weld lines of the spliced and welded plate automobile door by a bidirectional progressive topological optimization method, namely the design of a splicing and welding scheme; after specific positions of the weld lines are determined, namely the splicing and welding scheme is determined, dividing an inner plate of the automobile door into several regions by the weld lines, wherein the regions represent spliced and welded plates of different thicknesses; and constructing an automobile door system light-weight optimal model based on different working condition responses by a sensitivity analysis method and a size optimization method, performing optimal calculation, and determining the specific thickness of each spliced and welded plate of the inner plate of the automobile door.

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.

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. General Formula (I):

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 belongs to the field of cell therapy, and particularly relates to modified immune cells. Through gene modification of immune cells such as T cells, tumor infiltration T cells, NK cells,NKT cells and macrophages, homing and aggregation at solid tumors and infiltration of the solid tumors are enhanced, so that the treatment effect of the immune cells on the solid tumors is improved.

The invention discloses a method for extracting the characteristic quantity of a vibration signal of a transformer. According to the method, filter parameters are calculated based on a fast spectral kurtosis diagram method and a filter is designed to filter an original vibration signal; on the basis of an improved empirical mode decomposition method, the signal is decomposed to obtain a series ofintrinsic mode functions, correlation coefficients between all intrinsic mode function components and the original signal are calculated according to a correlation coefficient method, and a sensitiveintrinsic mode function is extracted and is reconstructed; and then the reconstructed transformer vibration signal characteristic frequency, kurtosis, amplitude and mean are extracted to form a vibration signal characteristic vector and the vibration signal characteristic vector is compared with the normal characteristic vector to determine the state of the transformer.

A compound parabolic concentrator (CPC) solar energy concentration and photovoltaic power generation combined application device relates to a solar energy concentration and photovoltaics combined application device, belongs to the technical field of solar energy application, aims at separately using infrared light and visible light in solar radiation energy, and has good utilization efficiency. A solar photovoltaic battery, foam quartz glass and quartz glass are sequentially arranged on the inner surface of a CPC, wherein visible light is covered on the quartz glass in plating mode to reflect feature films of infrared. Reflected infrared waves enter a heat absorber to be converted into heat energy, visible light penetrates through the quartz glass and is reflected and refracted for multiple times by the foam quartz glass and uniformly irradiated onto the surface of the solar energy, and electric power is output. According to changes of sunlight incident angles, distribution proportion of optothermal quantity and photoelectrical quantity of a system is adjusted. The CPC solar energy concentration and photovoltaic power generation combined application device comprehensively uses solar energy, can provide heat energy and power supply power, is simple in processing and operating, and has huge application potential.

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 manufacturing animal model of the qi-deficiency and blood-stasis disease, which particularly comprises the following steps: manufacturing an animal model of qi-deficiency syndrome by exhaustive exercise and / or basic food intake control and / or large dose of propranolol administration; and establishing a cerebral ischemia qi-deficiency and blood-stasis disease model by recovering blood supply of an artery after the qi-deficiency syndrome animal model blocks the artery in the brain.

The invention provides a coalescence degreaser for oilfield sewage treatment. The coalescence degreaser comprises a tank body, a flow stabilizing device, a rectifying device, a primary filtering device and an oil gathering device; the tank body sequentially comprises a lining layer formed by jet yarns in a jet molding mode, a structural layer formed by resin and fiber material composite materialsin an enveloping and winding mode and an outer surface layer formed by gel coat resin in a spraying mode from inside to outside in the thickness direction of the tank wall. The oil gathering device comprises a coalescence separation corrugated plate and a supporting piece. The thickness of corrugated plates in the prior art is reduced to increase the cross sectional area of a water flow channel between the adjacent corrugated plates, so that the sewage treatment capacity is greatly improved; and on the premise that the sewage treatment efficiency is not reduced, namely, the cross section of the water flow channel is kept unchanged, the arrangement number of the corrugated plates is greatly increased, so that the contact area of the corrugated plates and sewage is increased, and the oil gathering efficiency and effect are improved.

The invention relates to a remote sensing image block sorting and storing method suitable for spatial query, which comprises the following steps: regularly dividing an image into 22n image blocks from the top left corner; establishing a sorting queue for the image blocks according to the Hilbert sequence; marking front 2n-1 node pairs with maximum correlative sorting distance on the nth order of the Hilbert sequence, wherein each node pair comprises a node ai and a node bi, the ai and the bi indicate nodes in the node pair with maximum ith sorting distance, and i is greater than 0 and less than 2n-1+1, and inserting the nodes in the node pair into the sorting queue; repeating the marking and inserting operations in step 3 for n-1 orders corresponding to four quadrants of the Hilbert sequence until the mth order which is assigned by a user and meets performance requirements, and finally, generating a new sorting queue (i.e. improved Hilbert sequence); and according to the sequence in the sorting queue, storing practical image block data and minimum external frames of the blocks in an object-relational database. The invention provides an efficient method for organizing and storing a large amount of image data on storage equipment, such as disks and the like, thereby improving the spatial query efficiency of remote sensing images.

To provide an adhesive sheet for wafer processing that satisfies characteristics such as: (1) protecting an uneven circuit surface during grinding with an adhesive force that is not excessively weak; (2) being easy to remove after processing; and (3) leaving very little adhesive residue on the wafer, and that can preferably be used as a removable BG sheet or the like. This adhesive sheet for wafer processing is characterized in having a substrate and an adhesive layer formed on the substrate, the adhesive layer having an adhesive polymer (A) and a polyrotaxane (B) having a linear-chain molecule passing through the opening of the at least two cyclic molecules, and having a block group at both ends of the linear-chain molecule, the adhesive polymer (A) and the cyclic molecule of the polyrotaxane (B) being linked together to form a crosslinked structure.

An ink set includes two ink compositions containing resin and wax separately, with the resin in one and the wax in the other, or an ink composition containing resin and wax together as well as a coagulant solution containing a coagulant for a component of the ink composition(s). The resin and the wax include a resin and a wax wherein the resin has higher aggregability than the wax.

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 relates to a pedestrian searching method based on a partial shared network and a cosine interval loss function. The method comprises the following steps: firstly, designing a new neuralnetwork structure, enabling pedestrian detection and pedestrian re-identification parts to share shallower features, enabling the pedestrian detection and pedestrian re-identification parts to focus on respective tasks, and reducing mutual interference between the pedestrian detection and pedestrian re-identification parts to a certain extent from the perspective of improving a model structure; and secondly, deeply researching the influence of the weight of the pedestrian re-identification loss function on model optimization in multi-loss function joint optimization, and relieving the mutual interference between pedestrian detection and re-identification from the perspective of optimization by setting reasonable loss function parameters; finally, providing a more robust lookup table updating strategy, adding cosine intervals into an OIM loss function to reduce the distance between similar samples, and finally, enabling pedestrian features of network learning to be more differentiated.According to the invention, mutual interference between pedestrian detection and pedestrian re-identification can be reduced.

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.

The invention provides a quaternary ammonium salt surfactant, a preparation method and applications thereof, wherein the structure of the quaternary ammonium salt surfactant is represented by a formula (I), and each group is defined in the specification. The quaternary ammonium salt surfactant disclosed by the invention can be used as an efficient and low-consumption wetting agent in the field oftertiary oil recovery, and can effectively convert the surface of a carbonate oil reservoir wrapped by crude oil into water wettability or neutral wettability in the tertiary oil recovery process to achieve wetting reversal, so that the oil washing efficiency can be improved.

Provided are iron oxide nanocapsules for an MRI contrast agent having high contrast, in which a plurality of iron oxide nanoparticles having a hydrophobic ligand attached thereto are encapsulated in an encapsulation material including a biodegradable polymer and a surfactant, and which satisfy Relations 1, 2, 3, 4 and 5 below. Also a method of manufacturing the iron oxide nanocapsules is provided.5≦100*Dμ(IO) / C <o ostyle="single">ω< / o>(IO)  [Relation 1]2.5≦100*Dμ(Cap) / C <o ostyle="single">ω< / o>(Cap)  [Relation 2]0.5 wt %≦F(IO)≦50 wt %  [Relation 3]1 nm≦Dμ(IO)≦25 nm  [Relation 4]50 nm≦Dμ(Cap)≦200 nm  [Relation 5]

The invention discloses the structure and design method of a high-definition 4D raster picture, wherein a novel picture showing device can be provided by combining rectangular gridding, laser typesetting and outputting, colour board developing and orthogonal grating technologies. Clear, lucid, large-size, and non-dazzling stereoscopic slide projector images and stereoscopic video images can be represented by the movement or relative movement of a horizontal raster. The stereoscopic images or stereoscopic advertisements showed by the stereoscopic slide projector have great stereoscopic sense, definition and viewing comfort; the stereoscopic video can show several hundreds of continuously moving stereoscopic images with contents and plots.