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390results about How to "Keep safe" patented technology

Mobile storage apparatus, data secured transmission method and system

InactiveCN101488952ASafe transfer and storagePrevent virus and trojan attacksUser identity/authority verificationUnauthorized memory use protectionData transmissionAuthorization
This invention discloses a mobile storage device, a data safety transmission method and system. The device is internally equipped with an intelligent card chip, a data exchange area and a privacy area after the intelligent card technology change, wherein the data exchange area, the privacy area and a memory in an internal network host terminal are combined with matched software and hardware to realize the pure data safety transmission without protocol, based on which, the user authorization method is added, such that each data transmission operation in accordance with the user thought is realized, thereby effectively preventing the attacks of virus and Trojan. This invention guarantees the credibility of the user identity and the mutual credibility between the internal network host terminal and a mobile storage device via fingerprint authorization and bidirection authorization, realizing that the secret document only can be accessed in the safe environment via the authorized user. Finally, the mutual operation between the mobile storage device and the internal network terminal is recorded in a visit diary via an audit database and a fingerprint database of an authorization server, thereby realizing the traceability of the identity of the mobile storage device holder.
Owner:HUAZHONG UNIV OF SCI & TECH

Base station and communications method

A base station that communicates with a mobile station includes: a storing unit for storing a predetermined number of base station information, each including a base station ID for discriminating a specific base station and parameter information for radio communications set for the specific base station; an acquisition unit for acquiring a base station ID of other base stations forming a destination cell of the mobile station, or a base station ID of other base station forming a source cell of the mobile station; an aggregating unit for aggregating the number of times that each of the base station IDs is acquired in a first time period; a determination unit for determining a priority of each of the base station IDs on the basis of the aggregated results of the acquisition numbers; a judging unit for judging whether or not there is a base station ID which has a priority higher than the base station ID stored in the storage, and whose acquisition number is larger than a predetermined number of times; and a manager for deleting, from the storage, a base station information including a base station ID having a priority lower than the base station ID judged to have a higher priority, and for storing, in the storage, a base station information including the base station ID judged as to have the higher priority, in a case where the judging unit judges there is the base station ID having a higher priority and whose acquisition number is larger.
Owner:NTT DOCOMO INC

Vitrification ultralow-temperature preservation method of flax seeds

The invention discloses a vitrification ultralow-temperature preservation method of flax seeds. The vitrification ultralow-temperature preservation method specifically comprises the following steps: collecting sundried fresh flax seeds, loading in a loading solution for 20min under the normal temperature condition, then transferring into a freeze-preservation pipe filled with a vitrification protecting agent, putting in the freeze-preservation pipe in a gradient cooling box, reducing the temperature to -30 DEG C to -60 DEG C, and charging liquid nitrogen for ultralow-temperature preservation; and putting the freeze-preservation pipe out from the liquid nitrogen, naturally unfreezing the flax seeds when the room temperature is greater than or equal to 20 DEG C, rapidly unfreezing the flax seeds in a 30-DEG C water bath box for 1 minute when the room temperature is less than 20 DEG C, and washing for 2-3 times so as to obtain the flax seeds capable of being directly cultured for growth. The vitrification ultralow-temperature preservation method is simple, and convenient to operate; the preserved flax seeds are stable in inheritable characters, the germination rate of 98.67 percent can be obtained in germination tests of the seeds, and the flax seeds can be preserved for a long time.
Owner:INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI

Network work communication security and secrecy system on basis of PKI (public key infrastructure) technology and method for implementing network work communication security and secrecy system

The invention relates to a network work communication security and secrecy system on the basis of a PKI (public key infrastructure) technology and a method for implementing the network work communication security and secrecy system. An encryption sharing technology with a combination of a PKI identity authentication mode, symmetric encryption and asymmetric encryption is adopted. An encryption sharing procedure includes generating a random symmetric key, encrypting data and generating an encryption file; encrypting the symmetric key by a public key of a user and storing an encryption result in the encryption file; enabling the user to decrypt the symmetric key by a private key of the user when files need to be shared, encrypting the symmetric key by a public key of a receiver, appending an encryption result into the encryption file, enabling the receiver to decrypt the symmetric key by a private key of the receiver after the receiver receives the encryption file, and decrypting the symmetrically encrypted data to acquire contents. The network work communication security and secrecy system and the method have the advantage that safety problems such as breach of confidence and illegal use of identities during work communication can be fundamentally completely eradicated.
Owner:河北省电子认证有限公司

Anticorrosive composite polycarboxylate superplasticizer with high slump loss resistance, and preparation method and application thereof

InactiveCN105347726AAvoid mildew and smellStable storageSuperplasticizerSodium gluconate
The invention relates to an anticorrosive composite polycarboxylate superplasticizer with high slump loss resistance, and a preparation method and application thereof. The composite polycarboxylate superplasticizer comprises, by mass, 40 to 55% of mother liquor of a polycarboxylate superplasticizer, 4 to 7% of sodium gluconate, 0.15 to 0.3% of an air entraining agent, 0.1 to 0.25% of an antifoaming agent, 0.05 to 0.2% of an emulsifying agent and 0.1 to 0.3% of an anticorrosive bactericide, with the balance being water, wherein the mass percents of every component sum to 100%. The composite polycarboxylate superplasticizer is prepared by placing the mother liquor of the polycarboxylate superplasticizer, sodium gluconate, the air entraining agent, the antifoaming agent, the anticorrosive bactericide and the water in a container together according to the above-mentioned mass percents under the conditions of normal temperature and normal pressure and carrying out uniform mixing under stirring. In use, the composite polycarboxylate superplasticizer is added into a concrete cementing material according to a mass ratio of the composite polycarboxylate superplasticizer to the concrete cementing material of 0.1-0.15: 100. Compared with the prior art, the composite polycarboxylate superplasticizer provided by the invention has the advantages of convenience in usage, stable performance, no phenomena of mildew, smelliness and layering due to long-term storage, capacity of introducing small bubbles when used in fresh mixed concrete, and excellent water-reducing and slump-retaining performances.
Owner:TONGJI UNIV

Low-shrinkage low-creep crack-resistant high-performance mass concrete

The invention relates to low-shrinkage low-creep crack-resistant high-performance mass concrete, and belongs to the technical field of concrete. The requirement that the apparent density of the concrete is equal to or more than 2400kg/m<3>, the 28d compressive strength is equal to or more than 70MPa, the 28d tensile strength is equal to or more than 4.7MPa, the 365d dry shrinkage rate is less thanor equal to 519*10<-6>, the 365d compressive creep degree is less than or equal to 28.0*10<->6/MPa and the 365d compression creep coefficient is less than or equal to 0.72 is met under the conditionthat coal ash is mingled singly. The concrete has the advantages of being free of special stirring process, convenient to stir and capable of changing the stirring charging sequence compared with mixed concrete. The concrete mixture has moderate viscosity, good cohesiveness and small pumping pressure during construction, thereby being easy to pump and pour. The concrete has good crack resistance,low shrinkage, low creep, good volume stability, and can reduce the probability of cracks when used in high-strength stress complex mass concrete construction. By means of single mingling of the coalash in the concrete, the silo configuration of a mixing station can be reduced, stone powder in the mechanism sand can be used reasonably to avoid waste of resources, reduce energy consumption, greatly reduce the cost, and conform to environmentally-friendly development of the concrete. The abstract cannot exceed 300 words, thus deleted.
Owner:CHINA NUCLEAR IND HUAXING CONSTR +1

Comprehensive monitoring system for hospital logistics

The invention relates to a comprehensive monitoring system for hospital logistics, which includes a sensor monitoring system and a video monitoring system, wherein the sensor monitoring system includes data collecting equipment, a detecting and transmitting module and a monitoring and processing terminal; the video monitoring system includes shooting equipment, video access equipment and the monitoring and processing terminal; the sensor monitoring system and the video monitoring system share the same monitoring and processing terminal; the water temperature in the hot water system, the water level of the water tank in the water supply system, the on / off state of the knife switch in the power supply and distribution system, the warm air temperature of the heating system, the air pressure intensity of the air supply system, and the air pressure intensity of the oxygen supply system are monitored in real time through the connection and the data transmission of the sensor monitoring system and the video monitoring system, the medical equipment and the fire fighting equipment are monitored, and the signals can be timely judged for follow-up linkage reaction. The comprehensive monitoring system for the hospital logistics is more specialized and comprehensive, is more convenient to maintain, and improves the management level thereof.
Owner:JIANGSU PROVINCE HOSPITAL

Safety water quality detecting and sampling device

The invention discloses a safety water quality detecting and sampling device which comprises a motor, LED (light-emitting diode) lamps, a level gauge, a damping spring, a rotating shaft, a water conveying pipe, water taking heads, filtering screens, a drilling bit, an air bag, a water collection bottle, a sampling spoon and a timer. A handle is arranged at the top end of the motor, hand shanks arearranged on two sides of the motor, antiskid sleeves sleeve the hand shanks, the LED lamps are arranged on the side wall of the motor, the timer is arranged on the motor, the level gauge is arrangedon the motor, the motor is connected with the rotating shaft through a connecting part, the damping spring is arranged in the connecting part, the drilling bit is arranged at the bottom end of the rotating shaft, the water taking heads are arranged on two sides of the bottom end of the rotating shaft, through holes are formed in the water taking heads, the filtering screens are arranged in the water taking heads, the water conveying pipe is arranged in the rotating shaft, one end of the water conveying pipe is connected with the water taking heads, the other end of the water conveying pipe isconnected with the water collection bottle, the air bag is arranged on the water conveying pipe, scales are arranged on the rotating shaft, and the sampling spoon is arranged on the side wall of the bottom end of the drilling bit. The device is convenient in detection, simple in structure and convenient to use, and popularization is facilitated.
Owner:BEOSON JIANGSU FOOD SAFETY TECH CO LTD

Automatic precipitation sampler

The invention aims to provide an automatic precipitation sampler which comprises a sampling bottle, a sampling bottle sensor, a pressure sensor, a detection funnel, a rain collection funnel, a cover, a rotary motor, a lifting rod, a lifting rod motor and a water injection mechanism, wherein the lifting rod is mounted below the cover; the lifting rod motor drives the lifting rod so that the cover moves up and down; the rotary motor is connected with the cover and drives the cover to rotate; the cover covers the rain collection funnel; the rain collection funnel is communicated with the water injection mechanism; the sampling bottle is arranged by corresponding to the water injection mechanism; the sampling bottle sensor is mounted on the water injection mechanism to detect whether the sampling bottle is full of water or not; the detection funnel is arranged beside the rain collection funnel; a pipeline blocking rainwater is connected below the detection funnel; a bypass pipe is mounted on the pipeline; and the pressure sensor is mounted on the bypass pipe. The automatic precipitation sampler provided by the invention can automatically collect rainwater in precipitation and automatically stop sampling after the rain stops; and after the collection, the precipitation automatic sampler can store the sample perfectly and record the precipitation-related data.
Owner:HARBIN ENG UNIV
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