44results about How to "Increase the degree of aggregation" patented technology

The invention discloses an operation control method and device, a storage medium and an electronic device. The method comprises the steps that in the process of running a game task, a shooting aimingprop is displayed in a virtual scene corresponding to the game task, and the shooting aiming prop is used for assisting a shooting weapon in carrying out shooting operation; obtaining a strengtheningcoefficient matched with the shooting aiming prop; the emission parameters of the shooting weapon are adjusted according to the strengthening coefficient, the adjusted emission parameters are obtained, and the emission parameters are used for describing the gathering degree of bullets emitted by the shooting weapon; and controlling the shooting weapon to carry out shooting operation according to the adjusted emission parameters. The problem that the shooting precision is low is solved.

The invention discloses a traffic sign adversarial sample detection method based on neighbor discrimination and a classification device, and belongs to the field of machine learning. The method comprises: inputting a to-be-detected sample into a trained traffic sign classification network to obtain a first classification result and an intermediate feature map; inputting the intermediate feature map of the to-be-detected sample into a neighbor discrimination model, and taking a data set of the neighbor discrimination model as an intermediate feature map set of the training sample to obtain theprobability that the to-be-detected sample belongs to each traffic sign category; and judging whether the probability that the to-be-detected sample belongs to the first classification result is greater than or equal to a set threshold, if so, determining that the sample is a normal sample, otherwise, determining that the sample is an adversarial sample. AThe idea of calculating the similarity between the samples of the neighbor discriminant classification model and the simplicity and high efficiency of the method are utilized, on the premise of not influencing the classification performance of the deep neural network, the representation of an original data sample is changed, and the generation difficulty and attack difficulty of an adversarial sample are increased, so that the active defense capability of the system is improved, and the complexity of the model is not increased.

The invention discloses a functional targeting vector material distearoyl phosphatidylethanolamine-polyethylene glycol-polyethylenimine compound and a modified liposome thereof. According to the invention, a DSPE-PEG2000-PEI600 compound is taken as a targeting molecule to modify a drug-carrying liposome surface, so that the drug can selectively gather in tumor cells through a blood brain barrier effectively so as to generate a targeting effect. For instance, the drug uptake rate of C6 glioma cells and glioma stem cells is increased significantly, so that the drug can have strongest selective concentrated distribution on mitochondria of C6 glioma cells and glioma stem cells, shows stronger growth inhibitory effect on glioma cells, and shows stronger effects of crossing the blood brain barrier and killing glioma stem cells, i.e. dual targeting effect, and the cycle time of the drug in ICR mice and the gathering degree in tumor tissues can be prolonged, thus prolonging the life time of organisms.

The invention discloses a composite filter-pressing centrifugal dehydrant, which comprises lime, PAM and a foaming agent, wherein the mass ratio of the lime, the PAM and the foaming agent is (1.0-1.4):(1-0.3):( 0.05-0.1). The composite filter-pressing centrifugal dehydrant disclosed by the invention is high in dehydrating efficiency.

The invention relates to a chemical industrial park hazard situation awareness method and system based on multi-source data fusion. The chemical industrial park hazard situation awareness method comprises the steps: carrying out the grid segmentation of a chemical industrial park, and forming a plurality of grid points; based on the actual distance, the accident consequence calculation model and the relative danger degree, constructing a danger coefficient evaluation model between each danger source and any grid point in the chemical industry park; determining the weight of the danger coefficient of each danger source at any grid point according to the dangerous goods real-time monitoring data of each danger source and a preset alarm threshold; and according to the weight, carrying out weighted superposition on the danger coefficient of each danger source at any grid point to obtain the danger situation of any grid point in the chemical industry park. According to the chemical industrial park hazard situation awareness method, whether danger occurs can be sensed, and the distribution of the danger degree of the chemical industrial park can be sensed when danger occurs, and the sensing capability of the chemical industrial park in the aspects of danger situation and dangerous area distribution can be improved, and the danger is prevented.

The invention discloses graphene with high density and high electrochemical specific capacity, as well as a preparation method and application thereof. The preparation method comprises the following steps: putting low-density graphene into ionic liquid, performing heat treatment at 100 to 450 DEG C for more than 1 hour, then performing solid liquid separation, cooling, washing the product with deionized water until the pH value is 7, and finally putting into a blast drying box and drying to obtain the graphene with high density and high electrochemical specific capacity, wherein the ionic liquid is liquid of one or more of inorganic acid, inorganic alkali, inorganic salt and organic salt. In the compacting process of the graphene, the graphene is doped with heterotopic atoms, the plane of the graphene is subjected to pore formation, the density of the prepared graphene can reach above 1 g/cm<3>, the specific surface area can reach above 300 m<2>/g, and high-quality specific capacity and high-volume capacity can be shown simultaneously when being applied in the field of electrochemical energy storage.

The invention provides a low carbon alloy steel treatment method. The low carbon alloy steel treatment method comprises the following steps that (a) a low carbon alloy steel blank is cast and forged into a plate blank; (b) the plate blank is subjected hot rolling to obtain an finish-rolled plate; and (c) the end-rolled plate is deformed immediately after being heated to the two-phase region temperature and subjected to water quenching to the room temperature after heat preservation. According to the low carbon alloy steel treatment method, two-phase region heat preservation alloy element partition behaviors, vacancy generation of two-phase region heat deformation and interstitial atoms of low carbon alloy steel are combined to achieve the effect of improving alloy element partition, the effect of inherent alloy elements in steel is achieved, the concentration degree, in austenite (room temperature martensite), of the alloy elements is improved on the basis that original C partition is fully achieved, and favorable support is provided for stabilizing more residual austenite and making up strength and ductility product reduction in the subsequent Q and P treatment technology; and experimental results show that the concentration degree of the alloy elements can be increased by 2%-5% through the low carbon alloy steel treatment method.

The invention discloses a preparation method of a palladium-cobalt/carbon nitride composite material and a product and an application thereof. The preparation of the palladium-cobalt/carbon nitride composite material with a heterojunction structure is achieved by utilizing a hard template method and a step-by-step impregnation reduction method, and by virtue of rich pore structure formation of mesoporous graphite-phase carbon nitride, the obtained palladium-cobalt nanoparticles are ultrafine nanoparticles and are attached to pore channels and the surface of the carbon nitride material. The product obtained by the method is the palladium-cobalt/carbon nitride composite material, due to the existence of a heterojunction structure between the palladium-cobalt nanoparticles and the carbon nitride, the surfaces of the palladium particles have high electron density, photoelectrons generated by the carbon nitride under illumination can be captured, therefore, the prepared composite material shows excellent photocatalytic hydrogen production performance and has great application potential in the field of hydrogen production from formic acid and other raw materials.

The invention discloses a modified protein coating material as well as a preparation method and application thereof, and relates to the technical field of biological materials. The preparation method of the coating material with the modified protein comprises the following steps: carrying out carboxyl activation on a carboxyl-containing biological function modified molecule, then reacting with amino in the protein, and carrying out effective coupling to form the multifunctional modified protein; under the induction of an oxidizing agent, disulfide bonds maintaining the molecular structure stability in protein molecules break and oxidize to form stable intermediate sulfides, protein structure extension and side chain exposure enable the surface hydrophobicity to be increased, the intermolecular aggregation degree to be increased, meanwhile, the thermal stability is enhanced, and the protein molecules gradually deposit on the surface of a substrate to form a self-assembled coating. The modified protein coating obtained by the method has excellent stability and various biological activities, the process is simple, and the condition is mild.

The invention belongs to the technical field of biology, and particularly relates to an extraction method of mycobacterium tuberculosis DNA, comprising the following steps: obtaining mycobacterium tuberculosis, and inactivating the mycobacterium tuberculosis to obtain the inactivated mycobacterium tuberculosis; firstly performing vortex oscillation dispersion treatment on the sterilized mycobacterium tuberculosis is subjected to, and then ultrasonically dispersing to obtain mycobacterium tuberculosis dispersion liquid; performing wall breaking treatment on the mycobacterium tuberculosis dispersion liquid to obtain a wall breaking product; performing first extraction on the wall breaking product by a CTAB/NaCl solution, and then performing second extraction by using a mixed liquor of phenol, chloroform and isoamyl alcohol to obtain an extracted product; precipitating the extracted product by isopropanol and glycogen to obtain mycobacterium tuberculosis DNA. The extraction method disclosed by the invention has the advantages of high extraction quality and easiness in operation, and is suitable for being carried out in an ordinary biological laboratory.

The invention relates to an environment monitoring method and system based on the Internet, a storage medium and equipment. The method comprises the steps of collecting environment parameter information of a target area in real time; making local space autocorrelation analysis on the target area when the environmental parameter information after signal processing triggers an early warning condition, and calculating a relative environmental quality index of a local space; and making minimum variance clustering analysis on the local spaces to obtain a relative environment quality grade of each type of local space. By preliminarily judging whether the early warning condition is triggered or not, the overall environment quality of the target area can be preliminarily evaluated, then local space autocorrelation analysis is conducted on the target area to conduct targeted analysis on the local space, clustering analysis is conducted in combination with the relative environment quality indexof the local space. The environmental quality grade of the local space of each category is determined, so that the environmental quality monitoring precision is greatly improved, the environmental quality condition of the target area can be reflected more accurately, and guidance is provided for scientific environmental governance.

The invention provides a fuel saving joint and a fuel economizer, and relates to the technical field of automobile fuel saving. The oil saving joint comprises a joint body, a magnetic sheet assembly, and a filter screen assembly. The joint body is provided with a containing cavity; and the filter screen assembly is embedded in the containing cavity and divides the containing cavity into a first containing cavity and a second containing cavity. The magnetic sheet assembly comprises a magnetic sheet body and a clamping body layer; the clamping body layer is arranged in the second containing cavity and matched with the second containing cavity to form a magnetic sheet containing cavity for containing the magnetic sheet body; and the magnetic sheet body is embedded in the magnetic sheet containing cavity. The magnetic sheet body and the clamping body layer are both provided with notches, and the notches correspond to each other and are matched with each other. According to the oil saving joint, the magnetic sheet assembly and a filtering assembly are arranged in the containing cavity, and fuel is filtered and magnetized, so that the diameter of fuel drops is reduced, the fuel efficiency is improved, flue gas emission is reduced, and the effects of energy conservation and emission reduction are achieved. The fuel economizer comprises the fuel saving joint, and has all the beneficial effects of the fuel saving joint.

The invention discloses a preparation method of a cryptocrystalline graphite/polyvinyl alcohol heat-conducting composite material, and belongs to the field of composite materials. The method comprises the following steps: 1, mixing cryptocrystalline graphite, ammonium fluoride and a hydrochloric acid solution, heating, washing with deionized water until the pH value is 7, and drying; 2, mixing weighed sodium bicarbonate, corn starch and cryptocrystalline graphite, performing wet ball milling and drying; 3, dissolving polyvinyl alcohol into water, adding the treated cryptocrystalline graphite mixture, mixing uniformly and drying in a drying oven; 4, pulverizing and performing hot-press molding. The thermal diffusion rate is 8 to 9 mm<2>/s, because in the cryptocrystalline graphite granules subjected to purifying treatment, the aggregation degree is high, the density is increased, the heat-conducting effect is denser, and the heat transfer efficiency is improved.

The invention belongs to the technical field of surface coating preparation, and particularly relates to a method for preparing an aluminum oxide coating by modulating a high-current pulsed arc. The method comprises the following steps that a functional layer is formed, wherein the functional layer is a single layer formed by depositing aluminum oxide or a single layer formed by depositing aluminum oxynitride or a multi-layer composite coating formed by alternately depositing nitride and aluminum oxide; the aluminum oxide or aluminum oxynitride is formed by modulating high-current pulse arc discharge deposition; and the modulated high-current pulse arc adopts direct-current base current and low-frequency large-beam pulse current as a discharge power supply to perform arc discharge. Stablearc discharge is achieved through low-base-value current in a pulse arc discharge technology, accumulation poisoning of an oxide layer in the target surface discharge process is avoided through instantaneous maximum peak current, the ionization rate of oxygen is increased, an oxide coating is fully formed, arc spots are made to cover the whole target surface, generation of large particles in the arc discharge process is reduced, the ionization rate of particles is improved, and the high-quality and high-performance aluminum oxide coating is obtained.

The invention relates to a Poly (HPMA)-DOTA-Gd nuclear magnetic resonance contrast agent. The formula of the contrast agent is as follows (please see the specification for the formula). In the formula, x equals to 10-90 mol%, and y equals to 10-90 mol%. At the same time, the invention further discloses a preparation method of the contrast agent. The molecular weight of the contrast agent is less than a renal threshold, the molecular weight distribution is narrow, and the contrast agent can be eliminated through metabolism.