242results 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 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.

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 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 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 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 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*D_μ(IO)/C _{<o ostyle="single">ω</o>}(IO)  [Relation 1]

2.5≦100*D_μ(Cap)/C _{<o ostyle="single">ω</o>}(Cap)  [Relation 2]

0.5 wt %≦F(IO)≦50 wt %  [Relation 3]

1 nm≦D_μ(IO)≦25 nm  [Relation 4]

50 nm≦D_μ(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.