693results about How to "Avoid storage" patented technology

The invention discloses an ammonia-carbon combined desulfurization and denitration method for sintering flue gas. The sintering flue gas is desulfurized through ammonia-containing absorption liquid and then is adsorbed through activated carbon; the activated carbon is obtained by roasting carbonaceous materials and metallic oxide sources at a mass ratio of 2: 1 to 5: 1 at 850-1100 DEG C; the carbonaceous materials refer to semicoke or a mixture of coal and biomass. In the method, ammonia is cooperated with the activated carbon prepared through the method in use, desulfurization and denitration can be effectively achieved, secondary pollution is reduced, the process is cut short, and the treatment cost is reduced.

The invention belongs to the field of mobile terminals, and provides a smart terminal file cleaning method and device. The method comprises the following steps of setting a cleaning object when file cleaning is conducted automatically and a triggering condition for automatically conducting file cleaning, starting the file cleaning function when the fact that the triggering condition for automatically conducting file cleaning is met is detected, scanning the set cleaning object, and conducting file cleaning on the cleaning object according to the scanning result. According to the smart terminal file cleaning method and device, a user sets the cleaning object and the triggering condition when file cleaning is automatically conducted, when the set triggering condition is met, a smart terminal cleans the cleaning object set by the user, and cache files and multimedia files in the smart terminal are automatically cleaned.

In accordance with one embodiment, a method for securing data is disclosed. The method includes sensing multi-dimensional motion of a body part of a user to generate a multi-dimensional signal; in response to the multi-dimensional signal and user calibration parameters, generating a neuro-mechanical fingerprint; and encrypting data with an encryption algorithm using the neuro-mechanical fingerprint as a key.

The present invention provides for x-ray imaging and ultrasound imaging of a body region of interest in a spatially correlatable manner. The resultant x-ray and ultrasound images may be combinatively employed to provide three-dimensional information regarding a location of interest within the body, and is particularly apt for use in the analysis/biopsy of potential lesions and suspicious masses in a female breast. The invention provides for direct body contact by an ultrasound imaging head, as well as targeted ultrasound imaging of a selected portion of the region from which x-ray images are obtained. A user interface system facilitates various procedures including ultrasound guided needle biopsy procedures.

The invention discloses a method for simultaneously removing sulfur, niter and mercury from smoke based on catalytic oxidation. The method is characterized by comprising the following steps of: (1) arranging a catalytic reactor in a dust-removed smoke duct, wherein a catalyst for promoting oxidizing reaction of NO and HgO is filled in the catalytic reactor; (2) allowing the dust-removed smoke to pass through the catalytic reactor, wherein under catalysis of the catalyst, the reaction speed of the NO, the HgO and O2 is increased and the NO and the HgO are oxidized into NO2 and Hg<2+>; and (3) introducing the smoke subjected to catalytic oxidation into an absorber with an absorption solution, wherein the absorption solution is used for absorbing NO2, Hg<2+> and SO2 from the smoke. The invention also discloses a system applicable to the method. According to the method and the system, the sulfur, the niter and the mercury are removed from the smoke; external oxidant is not required to be added; preparation, transportation and storage of strong oxidant are avoided; operating cost is reduced; and economy and safety of the system are improved.

The invention belongs to the technical field of cloud computing, and discloses a cross-domain authentication and fair audit duplicate removal cloud storage system based on a block chain. The system comprises a cross-domain authentication module, a data encryption module, a ciphertext duplicate removal module, an integrity audit module and a server punishment module. In the authentication module, acloud user generates a certificate at a client in a self-signed mode, the certificate is stored in a block chain network after being verified by an authentication server, the user is verified to compare information such as the certificate and a block, and whether the certificate is valid or not is verified. According to the method, the problem of hierarchical query verification of a traditional PKI structure is avoided, the authentication frequency is greatly reduced, and the verification cost is reduced; By using an intelligent contract, a malicious server is punished to receive certain penalties and compensate users with impaired benefits under the condition that user data is damaged; And in the duplicate removal module, a data duplicate removal function is realized by using a convergence encryption technology, so that the cloud server is prevented from storing too much duplicate data, and the user and the cloud server are prevented from consuming a large amount of calculation expenditure and storage expenditure.

The invention discloses an identity authentication method, device and system. The method includes the steps that legal authentication two-dimensional codes of authentication users are generated, face information of the authentication users is collected to generate legal face feature data of the users, legal personal mask codes of the authentication users are generated according to the legal face feature data, and the legal authentication two-dimensional codes and the legal personal mask codes are subjected to reversible operation to obtain encrypted two-dimensional codes; when the users are subjected to identity authentication, face information of the users is collected again to generate current face feature data, current personal mask codes are generated according to the current face feature data, the current personal mask codes and the encrypted two-dimensional codes are subjected to reversible operation to obtain two-dimensional codes to be authenticated, and whether the two-dimensional codes to be authenticated are consistent with the legal authentication two-dimensional codes is judged. The problem of user information leakage caused by storage of face recognition images is avoided, and the intensity and safety of identity authentication are improved.

The embodiment of the invention provides a distributed cache method and system. The method comprises the following step: determining a first cache node according to a primary key value of metadata, and determining a second cache node according to a secondary key value of the metadatathe; and storing metadata issued by center storage node in the first cache node and storing index position of the metadata in the second cache node, wherein the index position of the metadata is used for indicating addresses of the first cache node. According to the invention, the access of the metadata can be achieved by the index position of the metadata, so that the same metadate stored in a plurality of cache nodes is avoided, thereby avoiding redundant storage of the metadata, saving storage space and ensuring the data access consistency.

The present invention discloses a big data-based power cable monitoring system and monitoring method. The system comprises a sensor module, a task scheduling module, a storage module, a cable comprehensive diagnosis module and a monitoring module. The sensor module is used for acquiring the data of a monitored object. The task scheduling module is used for starting the task scheduling operation according to an operation request submitted by a user. The storage module is used for storing real-time monitoring data and off-line historical data. The cable comprehensive diagnosis module is used for analyzing and processing data and sending out a fault alarm. The monitoring module is used for displaying and monitoring the treatment result of the cable comprehensive diagnosis module. According to the technical scheme of the invention, based on the HDFS, massive text data are stored and managed. Based on the k-means clustering algorithm in combination with a Spark computing engine, the collected massive data are subjected to the clustering treatment and analysis. Therefore, the fault point of a power cable can be quickly positioned.

The key management scheme for virtual organization in grid computation environment comprises: generating and updating the key; communicating and identifying based on threshold scheme. Based on schemes of centralization and distribution, it provides a new layer-cluster key management frame to solve the security problem and improve execution efficiency.

The invention discloses a VOC (volatile organic compound) waste gas treatment system. The VOC waste gas treatment system sequentially comprises a fan, a padding spray tower device, an ultraviolet activated carbon integrated device and a purified gas discharge opening, wherein the fan is connected with a VOC waste gas source; the padding spray tower device is connected with an air outlet of the fan; the ultraviolet activated carbon integrated device is connected to an air outlet of the padding spray tower device; the purified gas discharge opening is connected to the ultraviolet activated carbon integrated device. Waste gas is treated efficiently by the design of combining the padding spray tower with the ultraviolet activated carbon integrated purifier. Firstly, the padding spray tower is used for spraying washing; organic waste gas is dissolved into a purifying liquid well by multi-surface hollow spheres; then air water of a defogging layer is matched to share efficiently, so that gas after primary treatment is obtained by the padding spray tower. The gas after primary treatment is treated by the ultraviolet activated carbon integrated purifier, and clean gas reaching the standard is discharged out. The size of the device is reduced; the waste gas treatment efficiency is high; the purification cost is reduced; the purification standard reaching effect is ensured.

A flash control device and method. The flash includes a number of flash memory blocks, in which these blocks are divided into a number of storage blocks, and several reserved blocks. This control device includes a bad block mapping table and a controller. When to access to the data by the block addresses, the controller judges whether the block corresponding to the block addresses is a damage block. When the controller determines the block corresponding to the block addresses is a damage block, it replaces the access block address to the corresponding reserved block address by finding the bad block mapping table. Next, the controller repeats the above operation until the reserved block corresponding to the access block address is the normal block, and access to data with the access block address.

The invention relates to an LED supplementary lighting and image clipping evaluation system in standard image acquisition device, comprising an LED light source (101), a 1-120 VDC (Voltage-to-Digital Converter) power supply (102), a control circuit board (103), an image acquisition system (105), an LED light source switch (106), and an LED light source controller (301); the LED light source (101)is connected with the control circuit board (103) via an analog circuit, a digital circuit or an integrated circuit; the LED light source (101) is connected with the 1-120 VDC power supply (102) via the analog circuit, the digital circuit or the integrated circuit; the control circuit board (103) is connected with the image acquisition system (105) via the analog circuit, the digital circuit or the integrated circuit; and the technology of the invention is applicable to the public security image acquisition system, and improves the operation efficiency and image quality.

The invention belongs to the technical field of cloud computing, and discloses a data auditing and security deduplication cloud storage system and method based on a block chain. The method comprises four processes of data security deduplication and auditing label generation, probabilistic integrity auditing, intelligent contract arbitration and data decryption. Before data outsourcing, enabling auser to encrypt data by adopting a convergence encryption technology and delete redundant data on a cloud server; verifying the integrity of the outsourcing data by adopting a probabilistic verification method; enabling the intelligent contract to automatically execute verification and fair arbitration of an integrity auditing result, punish the cloud server and compensate corresponding compensation money of the user when the integrity is damaged; and obtaining original plaintext data after the user downloads the data and carries out data decryption operation. The problem that arbitration cannot be automatically executed in traditional data auditing is solved. In addition, the method also supports a ciphertext data deduplication function for protecting the consistency of user data, so thata user can effectively obtain correct plaintext data after decryption is completed.

The invention discloses a four-stage addressing method for a tile recording disk. The four-stage addressing method comprises the following steps of: dividing a logic space of the tile recording disk into a four-stage structure comprising a region, a section, a block and a sector; addressing the divided four-stage structure by a radial addressing mode; optimizing region intervals of the divided four-stage structure by adopting symmetric stack type magnetic track arrangement; and performing read-write operation on the tile recording disk with the addressed four-stage structure. Aiming at tile recording disk random write limitation, a data structure and the track arrangement of the tile recording disk are optimized; due to the advantages of high read-write speed of a flash memory and a memory, a tile recording disk system with a three-stage architecture is formed, so that the problem of low random write performance of the conventional tile recording disk is solved; the available capacity of the disk can be multiplied, and the performance can be prevented from being reduced; and the read-write speed is increased.

The invention provides a real-time industrial process big data compression and storage system and method and relates to the technical field of big data analysis. The system comprises a data acquisition module, a log file storage module, a memory cache module, a data compression module, a non-relational database and a rendering device. The data acquisition module is used for acquiring real-time industrial process data and synchronously sending the real-time industrial process data to the memory cache module and the log file storage module, data in the memory cache module is compressed, and the compressed data is stored in the non-relational database. By means of the real-time industrial process big data compression and storage system and method, the purpose of storing real-time industrial process big data can be effectively achieved, the real-time industrial process big data is compressed to the maximum and stored with the non-relational database, the real-time industrial process big data is effectively stored, the huge cost generated for storing the real-time industrial process big data can be reduced for enterprises, and online inquiry, calculation and the like of data can be quickly responded to.

The embodiment of the invention provides a data storage method and storage equipment. The method is applied to the storage equipment and comprises the following steps that: the storage equipment receives a write request message, wherein the write request message comprises data and the keyword of the data, and the keyword is used for identifying the data type of the data; the storage equipment determines the data type of the data according to the keyword; then, the storage equipment searches a target physical storage block matched with the data type according to the data type, wherein the target physical storage block is a physical storage block of which the physical address is continuous; then, the storage equipment stores the data to the target physical storage block; and the storage equipment determines the data type of the data according to the keyword, and stores the data of the same data type into the target physical storage block of which the address is continuous so as to prevent from randomly storing the data of the same type. If the data of the same type needs to be searched or accessed, not all stored data need to traversed, data searching and accessing time is shortened, and data searching and accessing efficiency is improved.