38results about How to "Increased confusion" patented technology

The invention belongs to the technical field of medical data management, and relates to a medical record storage, sharing and security claim settlement model and method based on a block chain. Firstly, credible sharing of medical data of patients among medical institutions is achieved through the blockchain technology, and a lifelong medical record is established for the patients; based on a Hashchain type storage structure, the medical data cannot be tampered; secondly, an improved CP-ABE-based cryptographic primitive SHDPCPC-CP-ABE is proposed, security encryption and fine-grained access control on the medical data are realized, and a patient can conveniently and efficiently access and authorize a medical institution to read the medical data; and finally, a Paillier homomorphic encryption technology is utilized to realize safe medical insurance claim settlement, and the privacy of the patient is protected when the patient interacts with a third-party non-medical institution. According to the invention, security, confidentiality, reliability and integrity of medical data can be realized, and confidential sharing of private data is supported.

The invention provides a block cipher encryption and decryption method belonging to the field of data encryption and decryption. The algorithm of the invention designs a symmetric encryption structure, especially the S-box design in the invention can configure S transformation required for encryption and S inverse transformation required for decryption without additional circuit resources, thereby being beneficial to the implementation of an encryption / decryption integrated hardware circuit and consuming fewer area resources compared with the AES (advanced encryption standard) encryption / decryption integrated circuit. The complicated S box structure of the algorithm can resist the traditional known attack methods. In case of a small number of encryption rounds (three rounds), a high encryption speed can be provided, and decryption can be carried out at the same speed by using the same encryption and decryption hardware. The algorithm is especially suitable for realizing an ASIC (application specific integrated circuit), and can realize an ASIC chip based on the encryption and decryption special-purpose algorithm. Besides, the invention can be also used for the design of IP cores on FPGA (field programmable gate array). Compared with the AES algorithm, the invention consumes fewer resources on FPGA and has higher speed.

The invention discloses titanium alloy and an annular titanium alloy forge piece forming method. The chemical element content of the titanium alloy comprises, by weight, 7.50%-7.80% of A1, 1.00%-2.00% of Mo, 2.60%-2.80% of Zr, 2.60%-2.80% of Sn, 0.50%-1.50% of W, 0.10%-0.25% of Si, no more than 0.15% of Fe, no more than 0.10% of Cu, no more than 0.10% of Cr, no more than 0.10% of C, no more than 0.15% of O, no more than 0.04% of N, no more than 0.012% of H, and the balance Ti. The annular titanium alloy forge piece forming method comprises the following steps that after the titanium alloy is fed, and blanking is conducted at the temperature 30 DEG C below the phase transformation point; forming is conducted at the temperature 20 DEG C above the phase transformation point, and water cooling is conducted till the allay reaches the indoor temperature; double annealing is conducted on the materials obtained through the above two steps. The annular titanium alloy forge piece has the high-temperature tensile strength which can meet the use conditions and is large in affluence measure at the temperature ranging from 500 DEG C to 550 DEG C and can replace TC 25 to be used for manufacturing compressor parts and the like.

The present invention discloses a light chaos-based color image encrypted transmission method and a system thereof. The system comprises a laser module, an image encryption module and an image decryption module. First, a laser generates chaos output under the action of light feedback, and an encrypted key is extracted from a generated chaos signal; a scrambling and diffusion encryption processing is performed on an original image through 3D cat mapping and Logistic chaos mapping and other methods; and an encrypted image is transmitted in an optical fiber by using a chaos concealment technology, and then the encrypted image is decrypted correspondingly, so as to recover the original image. The color image encrypted transmission method and the system thereof have high security and fast transmission speed.

The invention provides a method for realizing cross-domain Chinese text error correction. The method comprises the following steps: carrying out error detection by adopting a sequence labeled error detection model and combining a supervision data training model of a general field; performing error retrieval in the pinyin library of the word list through the editing distance or the Jaccard distance to obtain an error replacement set; and sequentially replacing the words in the error replacement set with errors, adopting an rnnlm language model to carry out confusion degree calculation on the sentence after error replacement, determining correct words in the error replacement set according to the calculated sentence confusion degree, and completing Chinese text error correction. The invention provides the method for realizing cross-domain Chinese text error correction, namely a set of error detection-candidate recall-error correction sorting model, the error correction problem of cross-domain texts can be processed more universally, texts are recalled through a language model of deep learning training, the confusion degree of the recalled texts can be improved, the models are mutually decoupled, and the error correction efficiency is improved. And the efficiency is improved.

The invention provides a preparation method of methacrylic resin. The preparation method of the methacrylic resin comprises the following steps: dissolving a monomer and a main initiator of the methacrylic resin to prepare a mixed solution of the monomer and the initiator; and in a protective atmosphere, carrying out heating treatment to enable the mixed solution to be subjected to polymerizationreaction. According to the preparation method of the methacrylic resin, the main initiator and the auxiliary initiator have a synergistic effect, and the preparation method can rapidly initiate monomer polymerization to generate a polymer with a specific chain length so that the molecular weight of the prepared resin meets the use requirements of ArF photoresist.

The invention discloses a driving behavior recognition method and system, and relates to the technical field of automobile driving. The method comprises the following steps: segmenting driving behavior data by adopting a driving behavior sequence change point detection algorithm to obtain segmented driving behavior segments; calculating the confusion degree of the LDA models with different clustering numbers; performing comparing to obtain the minimum confusion degree; and inputting the driving behavior fragment characteristic frequency statistical matrix into an LDA model corresponding to theminimum confusion degree to obtain a driving behavior category. According to the method, the driving behavior data is segmented by adopting the driving behavior sequence change point detection algorithm, so that the driving behavior data can be segmented more accurately, and the formed driving behavior fragments are more complete; and measuring the LDA model by using the confusion degree, and obtaining the driving behavior category according to the LDA model with the optimal clustering number, wherein the obtained driving behavior category is more complete and comprehensive.

The invention relates to a fluidized drying granulator of a pharmaceutical sealed linkage unit, which comprises a filtering chamber, arc-shaped blocks are fixedly connected to the inner walls of the two sides of the filtering chamber, and a first filtering plate making contact with the two arc-shaped blocks is rotationally connected into the filtering chamber; the outer wall of the arc-shaped block located on the left side is fixedly connected with an impact block making contact with the lower side wall of the first filter plate, and the upper side wall of the first filter plate is fixedly connected with a fixing rod. The impact block is intermittently beaten by the filter plate I rotating in a reciprocating manner, so that the effect of vibrating the first filter plate is achieved, powder is prevented from blocking the first filter plate, the smoothness of the first filter plate is ensured, the powder filtering efficiency is ensured, and the pharmaceutical efficiency is improved; the hot air flow is driven by a stirring blade to fully impact and contact the rotating powder, and the powder is suspended and circularly flows in a fluidized state, so that uniform mixing is achieved, the granulation efficiency of the fluidized drying granulator is improved, and waste is reduced.

The invention discloses a magnesium-base hydrogen storage material based on a high-entropy effect and a preparing method thereof. The magnesium-base hydrogen storage material comprises A<a->Mg<90-a>+bwt.% B hydrogen storage alloy, wherein in the formula, a is larger than or equal to 0 and smaller than or equal to 20, b is larger than or equal to 0 and smaller than or equal to 20, and a and b areequal to 0 preferably for the nitrogen storage alloy; A represents lanthanide rare earth elements and comprises Y elements (lanthanum, cerium, praseodymium, neodymium, samarium and the like) of whichat least five types of elements coexist, for instance, A is La<c1>Ce<c2>Pr<c3>Nd<c4>Sm<c5>, and c is larger than 0 and smaller than or equal to 50; B represents transition metal elements from Sc (withthe atomic number of 21) to Cd (with the atomic number of 48) and comprises the Al elements of which at least five types of elements coexist, for instance, B is Hf<d1>Zr<d2>V<d3>Nb<d4>Ti<d5>, and d is larger than 0 and smaller than or equal to 50; and the example alloy is preferential alloy, and c and d are equal to 20. After the alloy is hydrogenated, phases AH<2+x> and B of an unstable cubic structure are generated; in the nitrogen absorption process, the cubic structure in the AH<2+x> and B can be twisted into a square structure when the nitrogen content is increased, and the accordingly-generated internal stress changes reduce the thermal stability of magnesium-base hydrides, weaken the bond energy between Mg and H and effectively improve the hydrogen storage performance of the magnesium-base hydrogen storage material.

The invention discloses a screening device with a dust removal function for rice production, and relates to the technical field of rice screening. In order to solve the multi-stage screening problem, the device specifically comprises a base, a throwing type conveying mechanism, an impurity removing mechanism and a screening mechanism are sequentially arranged on the outer wall of the top of the base according to the rice path, the screening mechanism comprises a screening shell and screen plate assemblies which are oppositely arranged in the screening shell in a staggered manner, and each screen plate assembly comprises a screen mesh and a screen mesh; and the screen meshes are rotationally connected with the outer walls of the opposite sides of an impurity guide plate, and the outer wall of the other side of the impurity guide plate is fixedly connected with the inner wall of the screening shell. On one hand, the device can replace a filter screen, is simple in structure and reduces the cost, on the other hand, when rice subjected to wind power transversely moves, the rice can collide with an inclined baffle, the collided rice can continuously collide with other rice grains, the confusion degree of falling of the whole rice is increased, therefore, gaps between the rice are increased, and the dust removal effect is better.

A PUF-based lightweight RFID bidirectional authentication method belongs to the technical field of RFID and particularly comprises a pseudo-random number seed generation stage, an initialization stageand a bidirectional authentication stage. A physical unclonable function (PUF) is built in an RFID tag end to realize randomization of each round of interaction message, and a new bit flipping operation FLIP is designed to reduce the calculation cost of the tag end; by sharing the seed of the pseudo random number generator, the shared key of the server side and the label side in each round of authentication process is realized, and the use of a previous round of key value to update a next round of new key is avoided; the asynchronous attack problem in the seed generation process and the key sharing process is solved by using the time threshold and the counting threshold of the pseudo random number generator respectively; and lightweight bidirectional authentication of the RFID tag based on the PUF is realized, the requirement of resource limitation of the low-cost RFID tag is met, and the safety and privacy in the bidirectional authentication process are enhanced.

The invention belongs to the technical field of medical data management, and relates to a medical record storage, sharing and security claim settlement model and method based on a block chain. Firstly, credible sharing of medical data of patients among medical institutions is achieved through the blockchain technology, and a lifelong medical record is established for the patients; based on a Hashchain type storage structure, the medical data cannot be tampered; secondly, an improved CP-ABE-based cryptographic primitive SHDPCPC-CP-ABE is proposed, security encryption and fine-grained access control on the medical data are realized, and a patient can conveniently and efficiently access and authorize a medical institution to read the medical data; and finally, a Paillier homomorphic encryption technology is utilized to realize safe medical insurance claim settlement, and the privacy of the patient is protected when the patient interacts with a third-party non-medical institution. According to the invention, security, confidentiality, reliability and integrity of medical data can be realized, and confidential sharing of private data is supported.

The invention discloses a liquid crystal mixture with a giant electrothermal effect based on biaxial liquid crystal molecules. The biaxial liquid crystal molecules are added to a nematic liquid crystal mixture at the ratio; and the system comprises the following components in percentage by mass: 80%-95% of a nematic liquid crystal mixture with high dielectric anisotropy and 5%-20% of biaxial liquid crystal molecules. The preparation method comprises the following steps: evenly stirring the selected biaxial liquid crystal molecules and the nematic liquid crystal mixture with high dielectric anisotropy, so as to obtain the liquid crystal mixture with the giant electrothermal effect; and adding the biaxial liquid crystal molecules to the mixture, so as to play a role in induced orientation on mother liquid crystal molecules, thus the thermodynamic entropy change of the liquid crystal mixture under the electric field action is increased; the adiabatic temperature change is improved; and the maximal adiabatic temperature can reach 10.27 DEG C. The liquid crystal mixture has the advantages of good stability, low viscosity and fast electric field response.

The invention discloses a molecular sieve with a MWW structure, which is characterized in that the nitrogen adsorption-desorption BJH curve of the molecular sieve shows that the nitrogen desorption amount at 3.8±0.5nm is 0.01-0.10cm 3 / g, and the adsorption capacity of 2,4,6-collidine after adsorption at 20°C and desorption at 200°C is ≥35 μmol / g.

The highway crack treatment device for highway engineering comprises a base, a plurality of rolling wheels are installed on the lower side wall of the base, a feeding box is fixedly connected to the upper side wall of the base through two supports, and a first motor is fixedly connected to the upper side wall of the feeding box; the tail end of an output shaft of the first motor penetrates through the upper side wall of the feeding box and is fixedly connected with a reciprocating lead screw, the outer wall of the reciprocating lead screw is fixedly sleeved with an outer gear ring, and two rotating shafts located on the two sides of the reciprocating lead screw correspondingly are symmetrically installed in the feeding box. The outer wall of each rotating shaft is fixedly sleeved with a first gear engaged with the corresponding outer gear ring. According to the road crack repairing device, the contact area of the stirring blades and materials is increased through reciprocating movement of the multiple stirring blades, so that the disorder degree of the materials during stirring is improved, the materials can be fully mixed and uniformly stirred, the road crack repairing effect is improved, and meanwhile the sweeping requirement is met through the sweeping wheel with the height capable of being adjusted.

The invention discloses a preparation device and a preparation method for dimer fatty acid modified polyester resin, relates to the technical field of dimer fatty acid modified polyester resin, and aims to solve the problems that an existing dimer fatty acid modified polyester resin preparation device is low in material mixing efficiency during production, uneven mixing is prone to occurring, and the production cost is low. The special performance of the produced product is not stable, and the quality of the product is influenced. A material mixing supporting bracket is installed on one side of the upper end of the hot melting box, a material mixing box is installed at the upper end of the material mixing supporting bracket, a rotary driving bracket is installed in the material mixing box, a stirring anti-sticking bracket is installed outside the rotary driving bracket, and the stirring anti-sticking bracket is connected with the rotary driving bracket in a welded mode; a wear-resistant pad is installed in the stirring anti-sticking support, and an impact bulk material barrel is installed outside the rotary driving support and fixedly connected with the rotary driving support.

The invention relates to the technical field of information processing and information security protection, in particular to a switching control method and device for a password input interface.The method includes the steps that a user interface is monitored in real time to acquire current operating information on the user interface; when it is judged that the current operating information represents that current operation is located in a password input scene, a password generating module is awakened to display the password input interface, and the password input interface is used for displaying multiple image-text regions generated by the password generating module; a response to each time of selection of an information unit is made, the information unit is filtered to determine information elements in the information unit, and the information elements are displayed on corresponding password input positions in an implicit mode.By means of the switching control method and device, the fuzziness degree of the selected information elements and the password input fuzziness degree can be greatly increased, the security of the password setting / input verification process is improved accordingly, and corresponding optimization processing is conducted on the password verification processing process and the calling process of corresponding password input methods.

The invention relates to a pseudo-random number generation method based on chaotic function combination selection, comprising the following steps: S1, initializing n chaotic functions f1, f2, f3-fi, fn to generate n initial function value sequences r1, r2, r3-ri-rn, where n is greater than or equal to 3; S2, simplifying each of the n initial function value sequences r1, r2, r3-ri-rn into an initial pseudo-random number sequence b1, b2, b3,-bn which only contains 0 or 1 through calculation; S3, dividing the n initial pseudo-random number sequences b1, b2, b3-bn into M levels cj; And S4, carrying out item-by-item selection on the pseudo-random number sequences with the same level or low level through the high-level pseudo-random number sequences so as to generate an ultimate pseudo-random number sequence bf. According to the pseudorandom number generation method, the new pseudorandom number sequence is generated through mutual item-by-item selection among the chaotic functions, and compared with the pseudorandom number sequence generated through column-by-column selection in the prior art, the combined selection method is higher in precision.

The invention relates to cooking equipment which comprises a shell, a platform and a fan, a cooking cavity is formed in the shell, the platform is arranged in the shell, the fan is arranged on the platform, an air outlet communicates with the cooking cavity, and the platform and / or the fan can move relative to the shell so that the direction of the air outlet can change relative to the cooking cavity. By means of the mode, the confusion degree of the airflow in the cooking cavity is increased, the airflow acting on the food materials flows in all directions, then the food materials at all angles can be subjected to the airflow effect, and the airflow uniformity of the cooking equipment is improved.

The invention relates to the field of 3D display technologies, and in particular relates to and discloses a security method for a multi-view image. The method comprises the following steps of converting a part of RGB pixel units in the original multi-view image into YCbCr to form a transition image; performing location random number array mapping on each sub-pixel in the transition image to generate a mixed pixel image; when the image is playing, recovering the mixed pixel image, wherein the transition image is recovered by a recovery terminal in a previous location random number array mapping manner; and converting the YCbCr pixel units in the transition image into the RGB pixel units according to previous pixel conversion information, combining the RGB pixel units to acquire the original multi-view image. According to the security method for the multi-view image provided by the invention, the part of the RGB pixel units are converted into the YCbCr pixel units, and each sub-pixel is independently subjected to random dynamic location mixing, so that the security method has the advantages of being high in mixing degree, difficult to break and good in security performance, and greatly improves the data transmission security of the multi-view image.

The invention relates to a robot support plate, which belongs to the field of metal materials. The support plate includes a carbon skeleton from the inside to the outside, and an aluminum alloy coated on the outside of the carbon skeleton. The aluminum alloy is made of raw materials with the following mass percentage: Si: 0.06‑ 0.12%, Mn: 0.04‑0.08%, Zn: 0.01‑0.03%, B: 0.05‑0.15%, O: 0.02‑0.04%, the balance is Al and impurities, and it is prepared by pretreatment, molding and surface treatment , the special addition of carbon skeleton can not only standardize the specifications of the support plate and facilitate subsequent processing, but also greatly increase the load-bearing capacity of the support plate, greatly improve the service life of the robot support plate, and can meet the requirements of different environments.

The invention discloses a power consumption attack resisting method based on cyclic shift of bit permutation and a fixed permutation table, which comprises the following steps of: inputting a plaintext, and after a round of calculation is finished, performing bit permutation on an intermediate value and storing the intermediate value into a register; and before the next round of calculation is started, performing bit permutation recovery operation, so that the intermediate value is recovered to the original sequence, and subsequent calculation is carried out. The bit permutation comprises a cyclic shift mode and a fixed permutation table mode. In the cyclic shift scheme, the control signals of the bit permutation module and the bit permutation recovery module are the same, so that one module can be shared, and half of resource overhead is saved. In the scheme of the fixed permutation table, inverse transformation of the fixed permutation table is the fixed permutation table, namely, the original sequence can be recovered through two times of same transformation, resources can be repeatedly utilized, and extra area expenditure is reduced. And meanwhile, the positions of the ith timeand the (i+1)th time are completely staggered, so that for the registers at the same position, the data of two adjacent times relate to all 16 bytes in the past, and the data confusion degree is increased to the maximum.

The invention relates to a device and a method for treating molten steel in a tundish by utilizing rare earth. The device comprises a tundish body, a cylindrical reactor and a powder spraying device,wherein the cylindrical reactor is positioned at the central position of the tundish body; a ventilation hole is formed in the central position of the bottom of the cylindrical reactor; a ventilationelement is arranged at the central position of the bottom of the cylindrical reactor; the molten steel flows into the cylindrical reactor through a ladle long nozzle and is fully mixed with rare earthpowder; and after reaction, the molten steel flows into the tundish body from the upper edge of the cylindrical reactor. The molten steel is treated by adopting the device, the carried rare earth powder is blown into the molten steel through the ventilation element at the bottom of the tundish by utilizing inert gas, the rare earth powder and the molten steel are mixed in the cylindrical reactorwith a small volume, the uniformity degree of the rare earth powder and the molten steel is improved by the stirring effect of the gas, the dynamic condition of metallurgical reaction is improved, theyield and utilization rate of the rare earth powder are improved, and the device has the advantages of simple equipment, convenience in operation and the like.

The invention discloses an analog-to-digital hybrid electro-optical chaotic signal device and method. The device comprises a digital-to-analog conversion module, an analog nonlinear conversion module,an analog-to-digital conversion module, a digital nonlinear conversion module and a clock control module. A chaotic signal is generated based on an analog-digital hybrid delay feedback electro-optical system, the bandwidth and complexity of the signal are improved through analog nonlinear transformation and digital nonlinear transformation, the delay characteristic of the signal is eliminated, and the safety of the system is guaranteed; based on the proposed signal generation device, a signal regeneration method is designed and used for regenerating chaotic signals highly related to originalsignals at different positions, so that the reproducibility of the chaotic signals is ensured; therefore, the problems of poor safety and poor reproducibility of chaotic signals are solved at the sametime.

The invention proposes a logic encryption method for integrated circuit function output protection, which belongs to the field of hardware security. It is mainly divided into two steps, one is to obtain the output sensitivity of each AND, OR, and non-logic unit in the circuit; the second is to sort the output sensitivity of each logic unit, as a priority index of the encryption cycle, according to the priority from high to high Exactly performs logical encryption processing. The present invention focuses on the position of the logical unit node that has the greatest impact on the output Hamming distance, so that the subsequent encryption algorithm reduces the number of key gate insertions to reduce hardware overhead, and proceeds on the basis of a certain priority. Encryption loop, which can reduce the number of encryption iterations.

The invention relates to a smashing and stirring system and an efficient chicken essence production line using the same, and belongs to the technical field of chicken essence production processing. The smashing and stirring system comprises a feeding bin, a smashing machine is connected to a discharging port of the feeding bin, a first raw material storage bin is connected to a discharging port of the smashing machine, and the discharging port of the first raw material storage bin is connected with a first weighing hopper; the system further comprises a second raw material storage bin, a discharging port of the second raw material storage bin is connected with a second weighing hopper, a discharging port of the first weighing hopper is connected with a feeding mechanism, a discharging port of the second weighing hopper is connected with the feeding mechanism, and a discharging port of the feeding mechanism is connected with a stirring machine. The system can shorten the time consumption from raw material crushing to stirring, so that the working efficiency is improved.