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420results about How to "Reduce the risk of use" patented technology

Multi-satellite navigation system compatible GNSS (Global Navigation Satellite System) signal receiving method and correlator thereof

The invention provides a multi-satellite navigation system compatible GNSS (Global Navigation Satellite System) signal receiving method which supports the receiving of satellite signals of a GPS (Global Position System), a GLONASS (Global Navigation Satellite System), a Big Dipper navigation system and a Galileo satellite navigation system at present. The invention also discloses a multi-satellite navigation system compatible GNSS signal receiving correlator which comprises N multi-system correlated channels, wherein each multi-system correlated channel mainly comprises a carrier numerical controlled oscillator (NCO), a code NCO, a pseudo-random code generator and an integrating and zero clearing module; each code NCO is used for outputting a pulse sequence for triggering the pseudo-random code generator and also generating square signals with the same rate as subcarrier signals in a BOC (1, 1) signal demodulation mode; each pseudo-random code generator can generate 14 grades of pseudo-random codes at most; and each integrating and zero clearing module has an overflow protection function and improves the reliability. The multi-satellite navigation system compatible GNSS correlator can be compatible with four satellite systems, effectively improves the reliability and the continuity of navigation and positioning and obviously reduces the use risk of single-system navigation.
Owner:杭州中科微电子有限公司

Verification and simulation realization method for near space aerocraft model

The invention relates to the technology of the near space aerocraft. In order to provide a system-level consistency check novel model verification system output on the basis of the dynamic time sequence of the near space aerocraft model, give qualitative model verification based on the monte carlo method, carry out risk analysis to the model, comprehensively carry out consistency check to a model to be verified and give a visual verification criterion, the invention adopts the technical scheme that the verification and simulation realization method for a near space aerocraft model comprises the following steps of: (1) on the basis of the monte carlo simulation method, carrying out qualitative verification; (2) carrying out the qualitative model verification based on a time domain analysis method; and (3) carrying out qualitative model verification based on risk analysis, taking a model parameter as a risk to give a visual qualitative model verification criterion, giving a model comparison standard when a plurality of models to be verified exist, verifying whether the model can be safely used, and giving a safe-use range. The verification and simulation realization method for a near space aerocraft model, which is disclosed by the invention, is mainly applied to the design of the near space aerocraft.
Owner:TIANJIN UNIV

Power battery of motor vehicle provided with air conditioning system

The invention discloses a power battery of a motor vehicle provided with an air conditioning system, which is technical characterized in that a heat exchanging fan is arranged on the inner surface of a top cover of a battery packaging box, a battery cell is arranged in the battery packaging box below the heat exchanging fan, a heat conducting plate is arranged at the bottom of the battery packaging box below the battery cell, a refrigerant pipe and a hot water pipe are arranged inside the heat conducting plate, a high-voltage wire connector and a low-voltage wire connector are arranged on a battery control device, an air blower is arranged at an air inlet of the vehicle body, a fan heater and an evaporator are arranged on a ventilation pipeline between the air blower and an air outlet of a passenger compartment, an electric air conditioning compressor and a condenser are connected in series and then connected in parallel with the refrigerant pipe inside the heat conducting plate on the evaporator, and a water circulation pump and a water storage tank provided with a heater are connected in series and then connected in parallel with the hot water pipe inside the heat conducting plate on the fan heater. The power battery of the motor vehicle adopts the water cooling method and air cooling method simultaneously. The air conditioner takes the heat of the battery away or heats the battery, and the fan is used for causing forced convection so as to guarantee heat balance of the battery and further guarantee the working performance and service life of the lithium battery.
Owner:BRILLIANCE AUTO

Method for enhancing fair cloud computing user resource quota allocation

The invention provides a method for enhancing fair cloud computing user resource quota allocation. The method includes the steps of firstly, judging an application type, executing the second step if application is first application, and executing the fourth step if the application is a change application, secondly, acquiring the maximum quota of resource quotas corresponding to a user application system, thirdly, allocating the resource quotas for the first time, fourthly, judging the type of the change application, releasing the corresponding resource quotas if the resource quotas are the resource reduction quota, and executing the fifth step if the resource quotas are the resource increase quota, fifthly, calculating a credit factor shown in the specification, sixthly, allocating the resource quotas which are applied for increase if the credit factor is larger than a reference value C<0>, and multiplying the resource quotas which are applied for increase by a coefficient shown in the specification and then allocating the resource quotas to users if the credit factor is smaller than the reference value C<0>, and seventhly, the resource quotas of the users are dynamically adjusted with time T as the period. By means of the method for allocating the cloud computing user resource quotas, resource abuse is avoided, and allocation fairness is enhanced; the demand quantity of cloud computing platform resources can be effectively evaluated in advance, and the requirements of more users are met.
Owner:SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN

System and method for preventing unauthorized use of IC card

The invention discloses a system for preventing unauthorized use of an IC card. The system comprises an IC card reader-writer, a microprocessor, a testing UID card, a power supply module, a display module, and an automatic alarming device. The device is capable of preventing the unauthorized use of the IC card mainly by determining whether the data writing-in state of the 0 block data of the 0 sector of the IC card, the number of the IC card, and information stored in the IC card are consistent with related information of a system database. The UID card is tested to determined whether the working of the system is normal. When the working of the system is normal, user IC card operation is carried out. When the IC card is not the original card, the system is capable of forbidding the writing and reading operation of the card, and is used to transmit IC card leakage prompting information to a cell phone of a user and a public security organ by short messages. The principle and the operation of the device for preventing the unauthorized use of the IC card are simple and clear, and therefore whether the IC card information is leaked can be determined accurately, and the safety and the confidentiality of the IC card are greatly improved.
Owner:SHAANXI UNIV OF SCI & TECH

Repairing structure with composite repairing piece and method for forming repairing structure

The invention discloses a repairing structure with a composite repairing piece and a method for forming the repairing structure and belongs to the technology of composite repairing. The repairing structure is composed of a repaired damaged composite structure, the composite repairing piece, glue between the composite repairing piece and the composite structure, and a sewing thread steeped with a cementing compound. Firstly, small holes penetrating through the repairing piece, the damaged composite structure and a glue layer between the repairing piece and the damaged composite structure are machined in a repairing piece repairing part; secondly, the sewing thread steeped with the cementing compound sequentially penetrates into the small holes; lastly, curing is carried out at the regulated temperature and pressure, so that the sewing thread are bonded to the repairing piece around the sewing thread and the damaged composite structure together, and thus the repairing structure with the repairing piece is formed. By means of the repairing structure formed through the method, the influence on the performance in a composite laminated plate face is small, the environmental sensitivity is reduced, and the weight of the structure is slightly increased; in addition, the bonding effect between the composite repairing piece and the repaired structure can be improved, so that the mechanical property and the reliability of the repairing structure with the composite repairing piece are improved, and the use risk of the repaired composite structure is lowered.
Owner:刘龙权

High security removable storage device

The invention provides a high security removable storage device which comprises a safe main control chip, a chip operating system (COS) arranged in the chip, a flash memory and removable storage device safety management software arranged in the flash memory, wherein the COS system is stored in the safe chip and is used for managing the authority certificates corresponding to users; the removable storage device safety management software adopts a memory sandbox technology, and is used for monitoring and filtering various operations which are carried out on a removable storage device by the users and programs, checking the device service environment and the access authority of the removable storage device by being matched with the COS system, controlling the unauthorized use behaviors of data files of the removable storage device decoded to the memory, and recording various key sensitive operations. The high security removable storage device adopts an integral protection technology combining software and hardware, so that the security access control of the removable storage device can be realized, and the users having different authorities have different data views and fine grit operation authorities for the removable storage device; therefore, the users are prevented from privately copying the files and the content in the removable storage device, and the data of the removable storage device is prevented from being broken and stolen by viruses and Trojan horses.
Owner:张永昌

Axial flow ventricular auxiliary device with external drive

PendingCN110237327AAvoid Biocompatibility RisksReduce the difficulty of implantationIntravenous devicesProsthesisImpellerDrive shaft
The application provides an axial flow ventricular auxiliary device with an external device. The device comprises a driving mechanism, a transmission shaft, an impeller and a catheter. The catheter sleeves the outer side of the transmission shaft, and the driving mechanism is arranged at a proximal end of the transmission shaft, and is connected to the impeller through the transmission shaft; the catheter comprises a guiding section and a blood pumping section for blood circulation, the guiding section is fluidly isolated from the blood pumping section, the blood pumping section is arranged at a distal end of the catheter, and the impeller is arranged in the blood pumping section; and a cavity in the blood pumping section forms a blood flow channel, and the two ends of the blood flow channel are respectively provided with a blood flow inlet and a blood flow outlet. The driving mechanism of the device is arranged outside a human body, so that the adverse effect of heat generated during the driving process of the driving mechanism on the human body is avoided. At the same time, since the driving mechanism does not need to be implanted into the human body, the size of the driving mechanism is not limited by the size of the catheter, and sufficient power can be provided for the blood pumping process.
Owner:APT MEDICAL HUNAN INC

Independent ventilation cage flow measurement method, cage box external pressure difference measurement method, control system and control method

The invention discloses an independent ventilation cage flow measurement method which comprises the following steps of (1) dividing the voltage of an air inlet fan motor into N sampling points and dividing the voltage of an air outlet fan motor into M sampling points; (2) controlling the air inlet fan motor to work on a first sampling point, controlling the air outlet fan motor to work on a 0 sampling point and an M sampling point, collecting pressure difference between an air inlet box and an air outlet box through a pressure difference sensor, and utilizing a standard flow measurement instrument to demarcate flow in an independent ventilation cage of the air outlet fan motor on each of the sampling points; (3) repeating the step (1) and the step (2) when the air inlet fan motor works on other sampling points; (4) performing regression analysis on M+1 groups of pressure difference-flow data to obtain N pressure difference-flow curves meeting the following formula: deltaP+ K1 (v+ K2) 2= C, demarcating N groups of weight factors K1 and K2 when the air inlet fan motor works on different sampling points, and storing the N groups of weight factors K1 and K2 into a controller; (5) during actual operation, selecting the nearest voltage sampling point of an air inlet fan according to the voltage of the air inlet fan motor through the controller, and calculating the flow v by means of the weight factors of the nearest voltage sampling point and the measured pressure difference. The invention further discloses a cage box external pressure difference measurement method and a control method based on the independent ventilation cage flow measurement method and the cage box external pressure difference measurement method.
Owner:上海鸣励实验室科技发展有限公司

Method of using biochar for oxidizing trivalent arsenic in underground water

The invention belongs to the field of remediation of underground water and discloses a method of using biochar for oxidizing trivalent arsenic in underground water. The method includes the steps of adding the biochar into the underground water containing the trivalent arsenic (AsIII), introducing oxygen-containing gas at the same time, and carrying out stirring for a reaction for 1-3 days so thatthe AsIII in the underground water can be oxidized into pentavalent arsenic (AsV), wherein the biochar is obtained by adopting agricultural and forestry waste as a raw material for pyrolysis for 30-150 minutes at 400-500 DEG C under an oxygen isolation condition and then washing an obtained solid with deionized water. Through the cooperative effect of the biochar and the oxygen-containing gas andthe improvement of a pyrolysis preparation process and the like of the key biochar, the problems can be effectively solved that secondary pollution is likely to be caused, the operation cost is high,the operation is complicated, external minerals need to be added, and the efficiency is low. According to the method of using the biochar for oxidizing the AsIII in the underground water in site, an economical, efficient and environment-friendly treatment method is provided for oxidizing the AsIII in the underground water.
Owner:HUAZHONG UNIV OF SCI & TECH

Micro-needle roller device

The invention relates to a skin beauty and skin drug delivery device and a purpose of the skin beauty and skin drug delivery device. A protection cover is additionally arranged on the device and a movable connecting mode of multidirectional sliding or multi-angle movable embedding is adopted by a handle and a support of a fixed support so that transdermal drug delivery, transdermal absorption and system slow release are improved. A rolling needle is capable of producing a large amount of micro-tubes at a short time so that drugs, beauty products and the like can directly penetrate through epidermal layer cells and corium layer cells of the skin. A wound in the epidermal layer is small and healing of the wound is rapid so that possibility of bacterial infection is obviously reduced, the skin is not hardened or skin cells are not contracted, epidermal tissue does not become thinner and the device is capable of being reused. The device can further be used for massaging the skin on the head so that hair can be stimulated to grow. The device is simple in manufacturing technology, low in cost and side effect, obvious in effect, good in controllability, convenient to use, capable of being controlled by simple training, strong in practicality, capable of being directly used in daily life, particularly suitable for mass production and business application for industries and businesses of medicine, beauty and the like and remarkable in benefit.
Owner:SHANGHAI SEVENTH PEOPLES HOSPITAL

Intelligent integral multifunctional electric energy meter and method for controlling load by same

The invention discloses an intelligent integral multifunctional electric energy meter, which comprises an electric energy meter body; an input interface and a load monitoring end are arranged on the electric energy meter body; the input interface and the load monitoring end are respectively limited on two different surfaces of the electric energy meter body; a grid null line and a live wire are accessed into the input interface; a plurality of user loads are accessed into the load monitoring end; and a plurality of transmission connection configurations, a metering module, a circuit breaking module, a transmission port, a display and a control panel are arranged on the electric energy meter body between the input interface and the load monitoring end. According to the electric energy meter provided by the invention, the functions of metering and charging can be realized, and the control of user load can also be realized synchronously; as a plurality of output ports are arranged, the data transmission way is flexible, the user or maintenance staff can conveniently obtain the data information and solve the problems in time. In addition, the invention further discloses a method for controlling a load by the intelligent integral multifunctional electric energy meter.
Owner:WAHLAP TECH CO LTD +1

Safe USB flash disk and data active protection method thereof

The invention provides a safe USB flash disk and a data active protection method thereof. The safe USB flash disk comprises a safe main control chip, a chip operating system (COS) in a chip, a Flash memory and USB flash disk safe management software built in the Flash memory, wherein the COS system is used for storing and managing an authority certificate corresponding to a user; and the USB flash disk safe management software is used for monitoring and filtering various operations carried out on the USB flash disk by the user and a program, checking use environment and access authority of the USB flash disk equipment in cooperation with the COS system, controlling a unauthorized use behaviour of a USB flash disk data document which is deciphered to the memory and recording various key sensitive operations by adopting a memory sandbox technology. Since the USB flash disk adopts a hardware-software integrated protection technology, the safe access control of the USB flash disk is realized and users having different authorities have different USB flash disk data views and fine-grit operation authorities so that users can be prevented from privately copying documents and contents in the USB flash disk and the USB flash disk data is prevented from be destroyed and stole due to viruses and Trojans.
Owner:CHANGSHA WENDUN INFORMATION TECH
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