Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

34results about How to "To achieve the purpose of prevention" patented technology

Method for advanced forecasting of roof separation water disaster of stope based on multi-source information fusion

The invention discloses a method for advanced forecasting of a roof separation water disaster of a stope based on multi-source information fusion. The method comprises the following basic steps: determining main control factors affecting the roof separation water disaster of the stope; building thematic maps of all the main control factors; evaluating all the main control factors by adopting a level analysis method and calculating the influence weight of each factor on the roof separation water disaster; normalizing the influence weight values of all the factors, and performing composite superposition on the thematic maps of all the main control factors after normalization by adopting a GIS space composite superposition function to form a stope roof separation water disaster dangerousness evaluation map; counting and analyzing roof separation water disaster dangerousness indexes and determining sub-region threshold values so as to form stope roof separation water disaster dangerousness evaluation sub-region maps. By adopting the method disclosed by the invention, advanced prediction and forecasting of the roof separation water disaster of the stope can be realized; corresponding prevention measures can be taken according to the dangerousness level of the roof separation water disaster; occurrence of roof separation water disaster accidents is prevented; safe backstopping of a working face is guaranteed.
Owner:CHINA UNIV OF MINING & TECH

Ultramicro traditional Chinese medicine for preventing and treating lactation reduction and redness and swelling of breasts of dairy cows

The invention discloses an ultramicro traditional Chinese medicine for preventing and treating lactation reduction and redness and swelling of breasts of dairy cows. The ultramicro traditional Chinese medicine comprises raw materials in parts by weight as follows: 25-32 parts of dandelions, 18-22 parts of weeping forsythia, 15-25 parts of baical skullcap root, 25-34 parts of cowherb seeds, 18-22 parts of beautiful sweetgum fruits, 8-13 parts of uniflower swisscentaury root, 18-22 parts of Chinese angelica, 8-13 parts of rhizoma chuanxiong, 6-11 parts of bighead atractylodes rhizome, 9-14 parts of frankincense, 6-12 parts of myrrh and 8-11 parts of Chinese honeylocust spines. The ultramicro traditional Chinese medicine has the functions of treating both symptoms and root causes, and can be used for directly inhibiting or killing pathogenic bacteria of mastitis or inhibiting or killing pathogenic bacteria through improvement of body immunity; the medicine formula adopts the principles of heat and toxic material clearing, antisepsis, anti-inflammation, menstrual flow promotion, blood circulation promotion, swelling and pain elimination, collateral activation and lactation promotion, has functions of tonifying qi, raising yang and strengthening body resistance to dispel pathogenic factors, is effective and has a high cure rate, the milk quality of the dairy cows is improved, and the milk amount is remarkably increased. The ultramicro traditional Chinese medicine has controllable quality and the drug dependence is eliminated.
Owner:INNER MONGOLIA HUATIAN PHARMA

Slope surface debris flow prevention and treatment engineering structure and slope surface debris flow prevention and treatment method

The invention provides a slope surface debris flow prevention and treatment engineering structure and a slope surface debris flow prevention and treatment method, relates to the technical field of debris flow prevention and treatment, and aims to solve the problem about debris flow prevention and treatment from the source. According to the slope surface debris flow prevention and treatment method,the slope surface debris flow prevention and treatment engineering structure is arranged at the slope surface of the upstream of an area with debris flow frequently occurring; a main flow diversion belt is longitudinally arranged; a first branched flow diversion belt is slantly arranged; a water gathering ring well is arranged at the downstream of the main flow diversion belt; a water storage cabin is arranged in the water gathering ring well; the main flow diversion belt and the first branched flow diversion belt are used for intercepting surface layer water flow or runoff and guiding the intercepted water flow to flow in the guiding direction; the downstream end of the main flow diversion belt is connected with the upstream end of the water gathering ring well and communicates with thewater storage cabin; the downstream end of the first branched flow diversion belt is connected with the midsteam section of the main flow diversion belt and realizes confluence; a drain pipe is connected with the downstream end of the water gathering ring well and communicates with the water storage cabin. The slope surface debris flow prevention and treatment engineering structure adopts the runoff interception and source dredging manner, reduces the amount of infiltrating water of a frequent debris flow area to certain degree, and realizes the purpose of avoiding a debris flow disaster through preventing soil layer sliding.
Owner:王恩厚

Method for preventing injection attack of high-level encryption standard coprocessor

The embodiment of the invention relates to a method for preventing an injection attack of a high-level encryption standard coprocessor. The method comprises the following steps: initializing encryption and decryption path state words; obtaining a first plaintext and a first key, and generating a first check code and a second check code; generating a second plaintext and a key; performing first anti-injection check on the second plaintext and the first check code; performing second anti-injection check on the second key and the second check code; generating a first ciphertext and a third checkcode according to the second plaintext and the key; generating a second ciphertext, and performing third anti-injection check on the second ciphertext and the third check code; performing fourth anti-injection verification; carrying out fifth anti-injection verification; and performing sixth anti-injection check on the encryption and decryption path state word. The data verification is set at eachread-write operation of physical read-write, and the data verification is set before and after each key task node of the application layer, so that the purpose of preventing the injection attack is achieved, and the injection prevention process is ensured not to be subjected to the injection attack by setting the encryption and decryption path state words.
Owner:兆讯恒达科技股份有限公司

Risk assessment method for collapsible loess based on simulation of pipeline multi-angle laying

The invention discloses a risk assessment method for collapsible loess based on simulation of pipeline multi-angle laying. The risk assessment method comprises the following basic steps: analog simulation: proportioning experimental materials and establishing different-angle models; simulating the working conditions of running water scouring to different-angle laying; analyzing damage conditionsof soil bodies around pipelines with different laying angles; determining the relationship between the angles and the soil body damage according to soil body cracks, displacement and the quantity of quicksand; establishing a relation curve routing plan between the laying angles of the pipelines and destruction loss of the soil bodies around the pipelines; numerical simulation: establishing a modelby using FLAC3D according to a slope constructing model during a laboratory test; establishing different-angle laying models and plastic state diagrams; establishing vertical displacement contour maps of different-angle soil slopes; establishing transverse displacement contour maps of the different-angle soil slopes; establishing displacement vector maps of the different-angle soil slopes; determining a destruction law of the pipelines by combining the plastic state diagrams and the displacement of the pipelines. According to the risk assessment method disclosed by the invention, the occurrence of substantial destruction of the soil bodies around the pipelines is avoided, and safe operation of oil and gas pipelines and the like is ensured.
Owner:CHINA PETROCHEMICAL CORP +3

Risk assessment method for collapsible loess based on multi-angle laying of simulated pipelines

The invention discloses a risk assessment method for collapsible loess based on simulation of pipeline multi-angle laying. The risk assessment method comprises the following basic steps: analog simulation: proportioning experimental materials and establishing different-angle models; simulating the working conditions of running water scouring to different-angle laying; analyzing damage conditionsof soil bodies around pipelines with different laying angles; determining the relationship between the angles and the soil body damage according to soil body cracks, displacement and the quantity of quicksand; establishing a relation curve routing plan between the laying angles of the pipelines and destruction loss of the soil bodies around the pipelines; numerical simulation: establishing a modelby using FLAC3D according to a slope constructing model during a laboratory test; establishing different-angle laying models and plastic state diagrams; establishing vertical displacement contour maps of different-angle soil slopes; establishing transverse displacement contour maps of the different-angle soil slopes; establishing displacement vector maps of the different-angle soil slopes; determining a destruction law of the pipelines by combining the plastic state diagrams and the displacement of the pipelines. According to the risk assessment method disclosed by the invention, the occurrence of substantial destruction of the soil bodies around the pipelines is avoided, and safe operation of oil and gas pipelines and the like is ensured.
Owner:CHINA PETROCHEMICAL CORP +3

A Method of Preventing Injection Attack of Advanced Encryption Standard Coprocessor

The embodiment of the present invention relates to a method for preventing an injection attack of an AES coprocessor, comprising: initializing the encryption and decryption path status word; obtaining the first plaintext and the first key, and generating the first and second check codes; generating the second Two plaintexts and keys; perform the first anti-injection verification on the second plaintext and the first verification code; perform the second anti-injection verification on the second key and the second verification code; according to the second plaintext, the key , generate the first ciphertext and the third verification code; generate the second ciphertext, perform the third anti-injection verification on the second ciphertext and the third verification code; perform the fourth anti-injection verification; perform the fifth anti-injection verification Injection verification; the sixth anti-injection verification is performed on the status word of the encryption and decryption path. In the present invention, data verification is set for each read and write operation of physical reading and writing, and data verification is set before and after each key task node in the application layer, so as to achieve the purpose of preventing injection attacks, and by setting the encryption and decryption path status word to achieve Ensure that the anti-injection process is free from injection attacks.
Owner:兆讯恒达科技股份有限公司

Device for inducing, preventing and controlling adult dichocrocis punctiferalis and application

The invention relates to a device for inducing, preventing and controlling adult dichocrocis punctiferalis and application. The device comprises an inducing flower disc and a support fixing column connected with the inducing flower disc; the inducing flower disc comprises a phyllary and a connecting part, the phyllary is arranged on the periphery of the bottom of the connecting part and connectedwith the edge of the connecting part, tongue-shaped petals are arranged on the upper portion of the junction of the phyllary and the connecting part, end head sealed pipes and end portion open pipes are evenly arranged in the circumference defined by the base parts of the tongue-shaped petals and located on the upper portion of the connecting part, and the end head sealed pipes are centralized andarrayed into an area; according to the device, a physical method is adopted for inducing female adult dichocrocis punctiferalis to lay eggs on the surface of the inducing device, and natural transpiration, illumination, temperature and other factors are utilized to cause a large number of deaths of eggs and newly hatched larvae, so that the hatching rate of the eggs is reduced, the mortality of the newly hatched larvae is increased, and therefore the prevention and control purpose is achieved; field prevention and control of dichocrocis punctiferalis are conducted, the rate can reach 89.3% orabove, and the hazard rate is significantly reduced.
Owner:SHANDONG INST OF POMOLOGY

Multifunctional pest trap and method for controlling pear psylla by same

The invention discloses a multifunctional pest trap. The multifunctional pest trap comprises a rain cover, wherein connecting rods are connected with the bottom of the rain cover and connected with apest sticking plate, a container is arranged in a gap formed by the inner sides of the bottoms of the connecting rods, the outer side of the container is movably connected to the inner sides of the bottoms of the connecting rods, and an inverted net box cover is clamped at the top of the inner side of the container. The invention further discloses a method for controlling pear psylla by the multifunctional pest trap. A lure source substance for luring winter pear psylla is added to the container or the solid box cover. On one hand, the problems that an existing trap has a single function and cannot control production of female descendants are solved, and on the other hand, the problem of greater adverse impact on the environment and other microorganisms in a current pear psylla control process is solved; multiple pests are controlled simultaneously in the pest control process, and pest control target and efficiency of the trap are improved. The multifunctional pest trap is used for performing control in the dormant period of pear trees, and safe and harmless control for the pear psylla can be realized.
Owner:POMOLOGY INST SHANXI ACAD OF AGRI SCI

Method for reducing base number of pests in rice field by using entomopathogenic nematodes

The invention provides a method for reducing a base number of pests in a rice field by using entomopathogenic nematodes, and belongs to the technical field of green planting of rice. The invention provides a method for low stump harvesting of first season rice and parasitic prevention and control of rice pests through entomopathogenic nematodes by using the biological characteristics that the entomopathogenic nematodes can parasitize larvae and pupae of main pests of rice and combining a rice cultivating and planting process. Before rice planting, the rice field is not shielded by rice plants,the entomopathogenic nematodes are applied to the rice field, the base number of pests in residual rice stumps in the rice field is greatly reduced, and during rice planting, the entomopathogenic nematodes are applied to the rice field along with irrigation water (or spraying), so that the purpose of preventing and controlling the larvae and pupae of the pests, such as chilo suppressalis, cnaphalocrocis medinalis and lissorhoptrus oryzophilus kuschel is achieved. The method provided by the invention is beneficial to promoting large-area application of a rice green prevention and control technology system, and is one of effective ways for realizing ''zero increase'' in usage amount of a pesticide.
Owner:HUNAN RICE RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products