87results about How to "Improve attack ability" patented technology

The invention relates to roselle beverage which comprises the following components in percentage by weight: 50-55% of roselle juice, 0.4-0.5% of fructo-oligosaccharide, 5-6% of high fructose corn syrup, 0.7-0.8% of xylitol, 0.2-0.3% of citric acid, 0.01-0.05% of stevia rebaudiana, 0.02% of nisin and the balance of water, wherein the roselle juice is prepared by extracting a roselle mixture composed of dried roselle, dried smoked plum, dried hawthorn and dried liquorice; the roselle mixture comprises the components in percentage by weight: 96-99% of dried roselle, 0.4-1% of dried smoked plum, 0.05-0.5% of dried hawthorn and 0.05-0.5% of dried liquorice. The roselle beverage is prepared through the following processes of: mixing, boiling, filtering, sterilizing, canning and sealing. The roselle of the invention contains more hibiscus acid and roselle saponins which not only have antioxidant and health care effects for eliminating free radicals and keeping youth, but also have physiological functions of lipid-lowering and anti-aging or the like. By utilizingthe roselle beverage disclosed by the invention, the medicinal effects of roselle are given into full play, and the effects of the roselle for removing radicals, skin care and keeping youth are enhanced. The roselle beverage has the advantages of easily available raw materials, simple process, convenience in drinking, no toxic or side effect, and the like.

The invention discloses an image encryption method for a hyper-chaotic pseudo-random sequence, and the method comprises the steps: firstly selecting a fourth-order hyper-chaotic Chen system, generating the hyper-chaotic pseudo-random sequence, and enabling an initial value of the hyper-chaotic pseudo-random sequence to serve as a secret key; secondly, preprocessing the image, defining the row-column transformation relation of the image, further disturbing the row and column of the image, and determining parameters of the row-column transformation relation dynamically by a hyperchaotic pseudo-random sequence; defining the transformation relation of the image pixel values again, wherein the parameters of the transformation relation are dynamically determined by the hyper-chaotic pseudo-random sequence; and finally, encrypting the transformed image to obtain an encrypted image. According to the invention, a pseudorandom sequence with better initial sensitivity, randomness, stability, autocorrelation and other characteristics can be flexibly and conveniently generated, so that a better secret key is obtained; and the positions and pixel values of the image pixels are dynamically disturbed, so that the correlation of the image is further reduced, the secrecy effect is further improved, the higher requirement of a user on image encryption can be met, and the practicability is higher.

The invention discloses a confrontation defense method for confrontation attack based on an artificial immune algorithm. The method comprises the following steps: (1) obtaining an original picture sample set; based on the original picture sample, generating an adversarial sample based on an artificial immune algorithm; merging the original picture sample and the adversarial sample, and dividing into a training set and a test set; (2) training a picture classifier by using the training set and the test set to obtain a picture recognition model; and (3) identifying the to-be-identified picture by utilizing the picture identification model to realize confrontation and defense of picture identification. According to the invention, the technical problems of poor defense effect and low classifier identification accuracy in the prior art when attacks are resisted based on an artificial immune algorithm can be solved.

The invention discloses an adversarial sample generation method based on target detection model feature vector migration. The adversarial sample generation method comprises the following steps of S1, convolutional neural network feature vector migration; step S2, generating adversarial noise; and step S3, evaluating an adversarial sample attack effect. According to the method, the attack effect of the confrontation sample in deep learning models such as target detection is stronger, and better mobility is achieved on the premise that attack concealment is considered. The adversarial sample generation method disclosed by the invention reveals the important role of the feature vector in the adversarial mechanism of the target detection model, verifies the attack threat of the adversarial sample disclosed by the invention, and can heuristically explore the research in the field of a robust target detection algorithm, so that a new defense mechanism is designed; and the method is of great significance to application of the target detection model in actual life.

The invention discloses an anti-insect fabric, which consists of a lining layer made of natural fibers or artificial fibers, a face layer made of synthetic fiber multifilaments, and a lapping layer arranged between the lining layer and the face layer and made of polypropylene or polyethylene fiber monofilaments. The lining layer, the face layer and the lapping layer all contain pesticide components. The fibers adopted in the invention all can be recycled for jet-spinning again at low cost, and the processed fabric has good hand-feeling. The inventive anti-insect fabric has good air permeability, high resistance against insects such as mosquito, and long lasting anti-insect effects.

The invention discloses a fighting type top. The fighting type top is characterized by comprising a top body, a motor and rolling wheels, wherein a rotating shaft of the motor and the rolling wheels are connected through a clutch transmission set; when the motor rotates in the first direction, the rolling wheels synchronously rotate in the opposite directions, so that rotation of the fighting type top is achieved; when the motor rotates in the second direction, the rolling wheels synchronously rotate in the same direction, so that movement of the fighting type top is achieved. Movement of the electric top can be achieved through control over rotation of the motor in the first direction or the second direction, a player can autonomously select to attack or avoid the opposite side in a fighting game, the interaction between the electric top and the player is effectively improved, and the technical level of the player can also be reflected; friction between the rolling wheels and the contact surface is rolling friction, the energy consumption of friction is lower, and therefore the persistence of rotation of the top is improved; in addition, due to the contact between the two rolling wheels and the contact surface, the stability of the top can be higher, the top can be more flexible, and the top cannot easily be inclined in a collision fighting process in the fighting game, and the fighting winning percentage is increased.

The method comprises: user sends a jump request with its identification information and the website B address expected to login to the authentication server from a website A already logged in; the authentication server receives the jump request and generate a random cipher, and then generates the user ID information, random cipher and destination website B address, and then saves them; the user ID information, random cipher, destination website B address are returned to the website A; the website A redirects the user's browser to the destination website B, and transmits the user ID information, random cipher, and destination website B address to the authentication server through user and website B; the authentication server makes search to decide if there is a identical user's ID information, destination website B address and random cipher sent from the website B; if yes, then returning a successfully login sign to the website B, and permitting user login. The system thereof comprises: the website A already logged on and the website expected to log in.

The invention discloses a novel ODC drill bit with a stale function. The novel ODC drill bit comprises a drill bit base body (1) and a drill bit crown (2) arranged on the drill bit base body (1). A main cutter wing A (3), a main cutter wing B (4) and a main cutter wing C (5) are arranged on the drill bit crown (2), a compound sheet is embedded in each cutting tooth I (6), cutting teeth II are distributed on an auxiliary cutter wing a (7), an auxiliary cutter wing b (8) and an auxiliary cutter wing c (9), the perpendicular distance between the cutter teeth I (6) at the lowermost ends of the main cutter wings and the cutting teeth II (10) at the lowermost ends of the auxiliary cutter wings is H, and H is smaller than 10 mm. The novel ODC drill bit has the advantages that the phenomena that when the requirements for a small number of cutter wings and a high mechanical drilling speed are met, insufficient support of a drill bit to the stratum occurs, the stability is poor, and deflection of a borehole and suppress jump in a soft and hard staggered stratum are likely to be caused are avoided; meanwhile, the rock breaking aggressiveness is improved, the rock braking speed is increased, the service life of the drill bit is prolonged, and the drilling cost is reduced.

The invention discloses mosquito-repelling emulsified oil as well as a mosquito-repelling summer sleeping mat and preparation methods of the mosquito-repelling emulsified oil and the mosquito-repelling summer sleeping mat. The mosquito-repelling emulsified oil is composed of following components in percentage by weight: 5%-15% of deet, 2%-4% of sophoramine, 8%-15% of an emulsifying agent and the balance of an organic solvent. The mosquito-repelling summer sleeping mat is prepared by the following steps: (1) diluting the mosquito-repelling emulsified oil for 20-60 times to form a dip dyeing solution; and (2) immersing a summer sleeping mat into the dip dyeing solution and drying to prepare the mosquito-repelling summer sleeping mat. The mosquito-repelling emulsified oil provided by the invention is safe to human and livestock, is less prone to generate drug resistance and is easy to degrade in a natural environment; the prepared mosquito-repelling summer sleeping mat has strong capability of repelling the invasion of insects including mosquitoes and the like, and has a lasting mosquito-repelling effect.

The invention discloses compound milling shoes with various cutting elements. The compound milling shoes with the various cutting elements comprise milling shoe bodies 1, polycrystalline diamond compact blades 3 and second-stage cutting blades 5 are distributed in the milling shoe bodies 1 at intervals, a plurality of polycrystalline diamond compacts 2 are arranged in front of the polycrystallinediamond compact blades 3 in the radial direction, and irregular cemented carbide cutting particles 4 are welded behind the polycrystalline diamond compact blades 3 and second-stage cutting blades 5 ina overlaying mode. The fluid cools the working milling shoes and brings the debris of drilling and milling out of the bottom of a well through water holes 6 formed between every two blades. The compound milling shoes with the various cutting elements have the advantages that the various cutting elements can improve the adaptability of the milling shoes to drill and mill various types of bridge plugs, the service life of the milling shoes is prolonged, the size of drill and grind debris particles is reduced, and the drilling milling speed and efficiency are improved.

The embodiments of this specification provide a method and device for generating a face confrontation patch. In this method, an initial adversarial patch is obtained first, and then a face image set that does not contain the attacker's face image is obtained. Then, use each face image in the face image set to perform the first round of optimization on the initial adversarial patch to obtain the first adversarial patch; the first round of optimization makes each face image with the patch superimposed with the target person The similarity between face images is increased. Then, on the basis of the first adversarial patch, the second round of optimization is performed on the patch, so that the similarity between the attacker's image and the target face image with the superimposed patch increases, and the similarity between the attacker's own image and the attacker's own image decreases .

The invention discloses peppermint oil mosquito repellent liquid, a mosquito repellent summer sleeping mat and a preparation method thereof. The peppermint oil mosquito repellent liquid consists of the following components in parts by weight: 8-16 parts of diethylroluamide, 3-5 parts of pyriproxyfen, 2-4 parts of peppermint oil, 10-20 parts of emulsifier and 60-90 parts of organic solvent. The mosquito repellent summer sleeping mat is prepared by adopting the following method: (1), diluting the peppermint oil mosquito repellent liquid with water by 20-60 times to form a dip-dyeing liquid; (2), dyeing the summer sleeping mat into the dip-dyeing liquid, and drying to obtain the mosquito repellent summer sleeping mat. The peppermint oil mosquito repellent liquid disclosed by the invention is safe for people and livestock, less in possibility of generation of drug resistance, and easy to degrade in a natural environment. The mosquito repellent summer sleeping mat prepared by the method disclosed by the invention is strong in capability of repelling invasion of insects such as mosquitoes, and lasting in mosquito repellent effect.