86results about How to "Good attack" patented technology

The invention relates to a flat insert intended for being inserted in a security document, which includes a fibrous substrate (2) formed as a single layer having a cavity (5) and an electronic device (3) having contactless communication, housed in said cavity. Said cavity is in communication with a single surface of the fibrous substrate (2) and includes, in the cross-section thereof, a peripheral shoulder (13) for housing said electronic device in said cavity without generating a thickened portion of the insert, said fibrous substrate (2) including synthetic fibres.

Milling strategies for machining dental ceramic materials are provided that reduce milling time while maintaining strength, accuracy and marginal integrity.

A rotor blade (5) of a wind turbine, which has a profile (1-4) having an upper side (suction side) (7) and an underside (pressure side) (8). The profile (1-4) includes a camber line (21, 25) and a chord (18) between a leading edge (10) and a trailing edge (11) of the profile (1-4). The profile (1-4) has a relative profile thickness of more than 45%. At least one vortex generator (50, 50′, 50″, 50′″) is disposed, in the region of the profile (1-4), on the suction side (7) of the rotor blade (5). The profile (1-4) is provided with a blunt trailing edge. And, The thickness of the trailing edge is between 15% and 70% of the chord length.

A probe for measuring a local angle of attack designed to be fixed to a wall and a method implementing the probe are provided. The probe comprises at least three pressure sampling ports disposed over a nose of the probe body, pressure measurement means associated with the pressure sampling ports and calculation means capable of determining an angle of attack of the flow with respect to the main direction of the probe body as a function of the pressures measured by the pressure measurement means. The calculation means are configured for choosing from amongst the pressure sampling ports those allowing the best measurement precision of the local angle of attack to be obtained and for calculating the local angle of attack with respect to the main direction using the pressure measurements carried out in the chosen pressure sampling ports.

To provide a drum holding structure that does not impair the resonance feature or the sound quality that the drum originally possesses, that is free of occurrence of strains or twists in the drum constituents despite a long term of use, and that is excellent in terms of workability, and a drum held by the holding structure.

A holding structure for fixing a drum 1 to a drum holding rod 9, in which an elongated plate-like holder member 3 extending circumferentially is held by, out of a plurality of bottom-side lugs 2 and 2A arranged on the bottom side of the drum 1, at least two successive prescribed bottom-side lugs 2A arranged circumferentially. The holder member 3 is provided with a bracket member 4 for the drum holding rod 9 to thereby hold the drum 1.

The invention relates to a foreground and background separation-based image encryption method and decryption method. According to the foreground and background separation-based image encryption method, an image to be encrypted is divided into arbitrarily-selected foreground areas and background areas; encryption with different intensities are performed on arbitrarily-selected critical areas and other areas in the image, and therefore, emphasized protection can be provided for the critical areas selected from the image, and sensitive areas in the image has little possibility of being exposed; and high-intensity encryption can be performed on any irregular sealed communicated areas selected by a user, and ordinary encryption is performed on other non-critical areas; and the encryption method is closely related to key parameters given by the user, and is closely related to the plaintext of the image to be encrypted and selected irregular sealed communicated foreground areas, and therefore, a whole encryption process is extremely sensitive to the initial keys and parameters of the user, the plaintext image of the image to be encrypted and the irregular foreground areas.

The invention relates to a DWT-SVD geometric attack prevention blind watermark method based on SIFT. The method comprises a watermark embedding method and a watermark extraction method. The watermark embedding method includes the steps that discrete waterlet transformation is conducted on an original image, a low-frequency sub-band of the original image is divided into small blocks, singular value decomposition is conducted on each small block, chaotic encryption is conducted on watermarks to be embedded, and the watermarks are embedded into the maximum singular value of each small block through an optimal quantitative method, the SIFT feature points of a watermark image are stored as secret keys, the types of geometric attacks are judged according to the secret keys, and correction is conducted. The watermark extraction method is the inverse process of the watermark embedding method and includes the steps of correction of attacked images, watermark extraction and watermark decryption and restoration. According to the method, by the utilization of the rotation, zoom and translation invariance of the SIFT feature points and the combination of the advantages of DWT and SVD in the digital watermark aspect, robustness on geometric attacks is remarkably improved.

Microorganism of the genus Eubacterium, and its obtainment and use, which is suitable in pure culture, DSM 11798, and/or mixed culture with the strain Enterococcus casseliflavus, DSM 11799, or in mixed culture with other anaerobic microorganisms for the detoxification of trichothecenes.

A feedstuff additive for the inactivation of trichothecenes in feedstuffs or in the digestive tract of animals contains a pure and/or mixed culture of the microorganism (DSM 11798 or DSM 11799) or a mixed culture with other anaerobic microorganisms in an amount from 0.2 to 3 kg, in particular 0.5 to 2.5 kg, per 1000 kg of feedstuff. The feedstuff additive containing DSM 11798 achieves probiotic effect on an animal and maintains or improves fertility performance of an animal subject to fusariotoxin-contaminated feed.

An improved endotracheal tube providing a built in suction channel for the removal of excessive secretions from the lumen of said tube and the tracheobronchial system is disclosed. Control valves for regulating the suction feature are also disclosed. In at least one embodiment, the endotracheal tube includes an additional suction channel, an above-the-cuff suction channel adapted to remove secretions above the cuff outside the endotracheal tube and within the trachea. Additionally, in at least one embodiment, the endotracheal tube is configured for use with an endoscope for videolaryngoscopy, and the like. Furthermore, in at least one embodiment, an improved technology for the administration of medications within the tracheobronchial system is disclosed.

The invention concerns an outer door grip, in particular for vehicles. The outer door grip exhibits a handle (10), which can operate a lock disposed in the door upon actuation. The outer door grip exhibits a pivotal blocking member (20), which is normally placed in its ineffective release position (21) and therewith enables actuation of the handle (10). The blocking member (20) passes into an effective blocking position (22.1, 22.2) based on the inertia of the mass of the blocking member (20) in case of a crash, whereby the handle (10) becomes blocked. The blocking member (20) has available two blocking positions (22.1, 22.2), wherein the blocking member (20) moves into the first blocking position (22.1) upon a crash out of a first direction (30.1) and wherein the blocking member (20) moves into the second blocking position (22.2) upon a crash out of a second direction (30.2) located opposite to the first direction (30.1). A blocking lever (40) is furnished which is intermediately switched in the blocking position (22.1, 22.2) of the blocking member (20). The blocking lever (40) is thereby guided in a kind of connecting link guide (41).

A housing inserted in to the ear of a user is disclosed, said housing comprising a lateral end defined by being a part of the housing which is directed towards surroundings if the housing is inserted into the ear, a medial end defined by being a part of the housing which is directed towards the inner ear of the user if the housing is inserted into the ear, said medial end comprising at least a medial opening, wherein at least the lateral end of the housing is covered by a cover element. The cover element is acoustically transparent and made of open porous foam. The inventive in-ear device can be used as hearing device to improve the hearing of a hearing impaired person or as a communication device for natural as well as for remote communication.

The invention relates to a cutting machine of fodder for giant salamanders. The cutting machine comprises a machine frame, a first cutting mechanism and a driving mechanism. The machine frame is arranged close to an extrusion opening of a fodder hot-extrusion machine; the first cutting mechanism comprises a rotating shaft and a push rod, the rotating shaft is coaxially and fixedly connected with arotating disc, and the eccentric position of the rotating disc is fixedly connected with a supporting column; the lower portion of the push rod is rotatably connected to the machine frame, a slidinggroove is formed in the upper portion of the push rod in the length direction of the push rod, and the supporting column is slidably connected into the sliding groove; the bottom end of the push rod is fixedly connected with a sector gear, the sector gear is engaged with a rack, the rack is slidably connected to the machine frame, and cutting knife sets used for cutting the fodder are arranged atthe end of the rack; and the driving mechanism comprises a supporting plate rotatably connected to the machine frame, a swing rod is fixedly connected to the supporting plate, the two ends of the supporting plate are rotatably connected with a driving gear and a notched gear correspondingly, the rotating shaft is coaxially and fixedly connected with a rotating gear, and both the driving gear and the notched gear are engaged with the rotating gear intermittently. The cutting machine can cut the fodder in different lengths.

A wind turbine blade includes a root region. A first extension (LEX) is attached to the leading edge side of the root region while a trailing edge strake (TES) is attached to the trailing edge side of the root region. The LEX and TES each include an outer profile that becomes more pronounced relative to their respective locations in the root region as the root region of the wind turbine blade morphs from a substantially cylindrical shape to a substantially airfoil shape. The LEX provides both optimal angle of attack and lift generation in the root region, while the TES mitigates airflow separation and enhances airfoil lift in the root region.

A multi-bacterium composition for regulating immunity by activating, repairing and reconfiguring immune system and preparing immunoregulator, anticancer medicine and health-care food is prepared from two or more lacticacid bacteria through culture. Its preparing process is also disclosed.

A process for preparing a composition by percolating a fluid containing steam, at a pressure of at least 3 bar, through at least one member selected from an amino acid, oligopeptide, peptide, optionally modified, optionally hydrolysed protein, and mixtures thereof, in solid or pasty form.