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271results about How to "Free access" patented technology

Key management apparatus, document security and editing system, and key management method

An objective is to provide a key management apparatus in a document security and editing system that controls and manages the usage rights of a document, allows a user with usage rights to read and edit freely according to user qualification, and manages the usage rights in compliance with document management rules established by an organization. The key management apparatus includes an encryption key memory 11 that stores an encrypted document identifier of an encrypted document and an encryption key of the encrypted document; a usage rights set memory 13b that stores the encrypted document identifier and usage rights; a user group determiner 18b that determines the usage rights of a user; a usage rights issuer 16 that receives a read request using the encrypted document identifier, refers to the encryption key memory and the usage rights set memory, and sends the usage rights and the encryption key of the encrypted document; and an encryption information issuer 17 that receives an edit request, refers to the encryption key memory and the usage rights set memory, instructs to generate an identifier of a document to be encrypted and a encryption key of the document to be encrypted, and sends the generated identifier and the generated encryption key.
Owner:MITSUBISHI ELECTRIC CORP

Operative vaginal speculum

InactiveUS20070255110A1Optimal visualization of and free accessFacilitate visualization and/or accessSurgeryVaginoscopesGenital tractHinge angle
A speculum for performing gynecological procedures. The speculum includes a first structure, which includes a fixed blade member, a second structure, which includes a movable blade member, and a third structure to join the first and second structures together. The first structure includes a light source holder for an associated light source. The speculum includes a hinge, which may be located on either side of the speculum. These features facilitate improved visualization of, and access to, the genital tract. Such enhanced visualization and access reduces the likelihood of patient discomfort. The fixed blade member and the second blade member may be formed with cutaways to enhance visibility and instrument placement through the speculum.
Owner:MAINE MEDICAL CENT

Visible light communication-based limited area authority authentication device and file security method

The invention relates to a restrictive region permission authentication device based on visible optical communication. The device comprises an LED (Light Emitting Diode) controller, a photoelectric receiver, a safety management host and a user host. The LED controller is connected with the safety management host. The photoelectric receiver is connected with the user host. A file encryption methodcomprises the following steps of: 1, numbering files in a unified manner through a file permission management program, hiding in ciphertexts of the files, and distributing to users; 2, numbering fileusers in a unified manner through the file permission management program, and correspondingly establishing a permission database according to user permissions and numbers of the encrypted files; 3, encrypting information and secret keys in the permission database through the file permission management program, and broadcasting the information in a restrictive region through interface equipment; 4, decrypting the permission information and the secrete keys through a file permission service program, and inquiring the user permissions with input user numbers; and 5, regularly executing the step 3 according to application environment requirements, and updating the permission information and the secrete keys till the system stops working.
Owner:中港大公科技(北京)有限公司

Preparation methods and application of porous carbon from towel gourd vegetable sponge and composite material of porous carbon

The invention relates to preparation methods of porous carbon from towel gourd vegetable sponge and a composite material of the porous carbon and application of the porous carbon and the composite material in supercapacitor electrode materials. The method for preparing the porous carbon comprises the following steps: (1) washing the towel gourd vegetable sponge, and performing carbonization heat treatment in an atmosphere containing NH3 at a proper temperature; (2) mixing the carbonized product and KOH in a proper proportion, and activating in N2 at the temperature of 750 DEG C. The inner diameter of pore passages of the prepared porous carbon is between 1mu m and 15mu m, the pore wall thickness is between 0.3mu m and 1mu m, and the activated specific surface area can be 1510m<2>/g. The method for preparing the composite material comprises the following steps: reacting the porous carbon with a KMnO4 solution, and growing MnO2 nanosheets, thereby obtaining a porous carbon/MnO2 composite material; or reacting the porous carbon with aniline to obtain a porous carbon/aniline composite material. When serving as the supercapacitor electrode materials, the prepared porous carbon and the composite material thereof have more excellent performance and favorable application prospect compared with a conventional carbon material.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Automatic coconut cutting machine

The invention relates to an automatic coconut cutting machine. The automatic coconut cutting machine is characterized by comprising a rotary worktable, wherein on the worktable, a plurality of mechanical hands are uniformly distributed on a line of equal circles which take the center of the worktable as the center of the circle; each of the mechanical hands comprises an arm, a palm and fingers; the arm vertically passes through the worktable; three to four fingers are connected with the palm by a pin which is sleeved with a torsion spring; a retractable driving device is arranged below the worktable corresponding to the mechanical hands; movable parts of the retractable driving device can be contacted with the arm and drive the arm to move up and down; a support is arranged above the worktable corresponding to the mechanical hands; a hollow rotating shaft is vertically arranged on the support; the hollow rotating shaft is driven by a motor; a lower end of the hollow rotating shaft is connected with a cylinder saw; and the cylinder saw corresponds to the direction in which the medical hands are extended. A pressing sleeve and an ejector rod also can be arranged on the support. The automatic coconut cutting machine can freely cut coconuts with any size and is safe and sanitary, and greatly improves the production efficiency.
Owner:HAINAN UNIVERSITY

Card application access method and device

The invention discloses a card application access method and device. The method comprises the following steps: receiving an access request of a first card application, wherein the access request comprises an application identifier (AID) of the first card application; sending the access request to a first profile which is activated currently in an embedded subscriber identity module; and receiving a result which indicates an access failure and is sent by the embedded subscriber identity module, activating a second profile corresponding to the AID of the first card application if a one-to-one corresponding relationship of profiles corresponding to the AID of the first card application is stored in a pre-stored query list, and accessing the first card application. Through adoption of the card application access method and device provided by the invention, a judgment on whether the one-to-one corresponding relationship of the profiles corresponding to the AID of the first card application is stored in the pre-stored query list or not is made, and the second profile corresponding to the AID of the first card application is activated if a judgment result is positive, so that a terminal can freely access the card applications of all operators in a card.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Data splitting for recursive data structures

Embodiments of the present invention provide a method, system and computer program product for the data splitting of recursive data structures. In one embodiment of the invention, a method for data splitting recursive data structures can be provided. The method can include identifying data objects of a recursive data structure type, such as a linked list, within source code, the recursive data structure type defining multiple different data fields. The method further can include grouping the data objects into some memory pool units, each of which can contain the same number of data objects. Each memory pool unit can be seen as an array of data objects. The method can include data splitting, which could be maximal array splitting in each different memory pool unit. Finally, the method can include three different approaches, including field padding, field padding and field splitting, to handle irregular field sizes in the data structure.
Owner:IBM CORP

Wind prevention, sand fixation and water retention afforestation method

The invention discloses a wind prevention, sand fixation and water retention afforestation method and belongs to the technical field of environmental protection engineering. The method comprises steps as follows: a curing agent is prepared from sodium carboxymethylcellulose, anionic polyacrylamide, ferrous chloride and water; the curing agent and sand are blended to form cured sand; deep holes for tree planting and shallow trenches for grass planting are dug in the sand land, water collecting hoppers are drilled in the deep holes, the deep holes and the shallow trenches are filled with the cured sand, and the cured sand form deep hole sand fixation and water absorption layers in the deep holes and form shallow trench sand fixation and water absorption layers in the shallow trenches; saplings are planted in the deep holes, the roots of the saplings extend into the mouth parts of the water collecting hoppers, and grass seeds are scattered in the deep holes and the shallow trenches; the grass seeds are covered with a mulching film for maintenance, and small ventilation holes are formed in the mulching film. The curing agent and the sand soil are blended, inside gaps of soil particles can be filled with the blended curing agent and sand soil, the cured sand particles don't easily disperse and jump, sufficient water can be continuously provided for plants, and the long-time wind prevention, sand fixation and water retention effects are achieved.
Owner:裴向军 +1

Artefact elimination for a medical pelvic registration using a tracked pelvic support known to the system

A system for registering a patient's body part in a medical workspace of a medical navigation system is provided, wherein the body part is supported by at least one support device. The system includes a medical navigation system including a processor and memory, a reference device coupled to the at least one support device, a tracking device communicatively coupled to the medical navigation system and operative to determine a position of the reference device; an x-ray or fluoroscopic apparatus for capturing x-ray or fluoroscopic images of the body part; and logic stored in memory and executable by the processor. The logic includes logic that eliminates an effect of image artefacts on registration of the body part, wherein the artefacts are caused by the at least one support device.
Owner:SMITH & NEPHEW INC +2

Fiber screen bag and method for rapidly determining coarse fiber

The invention relates to a fiber screen bag and a method for rapidly determining coarse fibers. After special fibers are used for making a screen with pore diameter being 25.0mum, a sample is put into a screen bag with certain size and is respectively boiled in acid and alkaline for 40min, then the sample is washed clean, dried and weighed and the content of the coarse fibers can be calculated by subtracting the weight of ash. The fiber screen bag and the method can be used by scientific research institutions, analysis and detection institutions, feed plants and the like to rapidly determine the content of the coarse fibers of feed, grains, oil and food on a large scale, and can also be used for rapidly determining neutral detergent fibers (NDF), acid detergent fibers (ADF), celluloses, hemicelluloses, dietary insoluble fibers, lignin and the like on a large scale. Compared with the traditional national standard method, the method has the advantages that the method is suitable for large-scale rapid determination, the efficiency is high, the time is short, the precision and the accuracy are high, the cost is low, and equipment such as any fiber determination instrument, filter and suction filtration devices and the like are not required. The fiber screen bag has the advantages that the bag is not floated, the weight is not lost, the moisture is not absorbed, the bag is not broken, the ash does not exist and the like when solvents such as acid, alkaline, acetone and the like are used for treatment.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Hand-Held Device Integrating Computer and Cell Phone and Method for Realizing the Same

The hand-held device integrating computer and cell phone and a method for realizing the same. The hand-held device includes: a computer mode processing module; a cell phone mode processing module; a shared storing module connected both to the computer mode processing module and cell phone mode processing module; a shared processing module connected to all of the computer mode processing module, cell phone mode processing module and shared storing module for responding to the selection of the user and enabling the computer mode processing module or cell phone mode processing module; and a power supply module for supplying working power to the computer mode processing module, cell phone mode processing module, shared processing module or shared storing module. By this way, the computer and cell phone are combined together to form a hand-held terminal device capable of being received into a pocket.
Owner:WU WEI
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