72results about How to "Build security" patented technology

Disclosed herein is an apparatus for evaluating the safety of a building. The apparatus includes first and second measurement instruments which measure earthquake accelerations of the top and bottom stories, a fast Fourier transform unit which performs fast Fourier transform on the earthquake accelerations, an integration unit which double-integrates the measured earthquake accelerations and creates drift data of the top story and the bottom story, a maximum inter-story drift ratio calculation unit which calculates a maximum inter-story drift ratio, a natural frequency change rate calculation unit which determines a natural frequency of the building, and compares the natural frequency with an ambient natural frequency of the building so as to calculate a natural frequency change rate, and a building safety evaluation unit which compares the maximum inter-story drift ratio and the frequency change rate with preset evaluation criteria and outputs a result of evaluation in the safety of the building.

Platform for drilling after or production of hydrocarbons at sea, consisting of a semi-submersible platform body which supports drilling and/or production equipment on its upper surface. The platform body is designed as a vertical mainly flat bottomed cylinder which is provided with at least one peripheral circular cut-out in the lower section of the cylinder since the centre of buoyancy for the submerged section of the platform is positioned lower than the centre of gravity of the platform.

The invention discloses a stable knockout single plasmid vector with coordination of transposon and a CRISPR/Cas9 system and application of stable knockout single plasmid vector and belongs to the field of gene engineering. The single plasmid vector is a double-stranded circular plasmid containing an IRDR-L-IRDR-R box, and the IRDR-L-IRDR-R box comprises an IRDR-L sequence, a promoter, a gRNA scaffold sequence, a Cas9 protein sequence, a resistance screening gene sequence and an IRDR-R sequence. The single plasmid vector provided by the invention can realize expression of sgRNA and a Cas9 protein only needing once construction and once transfection. A method is simple in process, is efficient and rapid, greatly simplifies a plasmid construction flow, shortens an experiment period and improves the working efficiency. The vector provided by the invention carries a transposase recognition sequence, does not use a virus, can conveniently, rapidly and safely establish a gene knockout stablecell line and is beneficial to screening stable cell lines by comprising the puromycin screening resistance.

A building modular and panel system for construction using prefabricated modular panels. The system includes top and bottom plates connected to metal studs. A high rib metal lath with moisture barrier backing can be secured to and covers the metal studs. A light weight gas injected concrete/plaster seizer mix is sprayed over the metal lath to create the structural panel. The structured panel is preferably bolted to the slab. To provide further support, especially in a commercial setting, one or more lateral wall channel bracing can be attached to the metal studs.

The invention discloses a self-resetting energy dissipation system with a fabricated frame structure and a construction method of the self-resetting energy dissipation system. The self-resetting energy dissipation system includes a prefabricated column connected with a foundation, a prefabricated reinforced concrete cross beam, a prefabricated reinforced concrete beam column sub-structure and dryconnection, and further includes a self-resetting energy dissipation device arranged between interbedded prefabricated frames; and the dry connection includes friction-type high-strength bolt connection between columns and pin shaft connection between beam-beam artificial plastic hinge connecting nodes. The invention further discloses the construction method for the self-resetting energy dissipation system with the fabricated frame structure. According to the self-resetting energy dissipation system with the fabricated frame structure and the construction method of the self-resetting energy dissipation system, the shortcomings of current prefabricated structural systems are overcome, and an anti-seismic target of 'strong column and weak beam, strong node and weak component' is realized; through reasonable arrangement of the self-resetting energy dissipation device, the energy dissipation capacity of the structural system is enhanced, residual deformation of the structure is effectivelyreduced or avoided, and the allimportant social value and economic significance for effectively mitigating earthquake disasters in high-intensity areas are achieved; and meanwhile, the construction process is simplified, the construction quality is guaranteed, practicality is high, and use and promotion are convenient.

The invention relates to a wireless charging system and a transmission link establishment method. The method comprises steps that 1, scanning, a charging sending end is found by a receiving end of thewireless charging system through scanning; 2, link authentication, a link authentication request is sent by the receiving end to a certain sending end, and link authentication can be carried out under secret key and no-secret key conditions; 3, association, an association request is sent by the receiving end to the sending end, the association request is responded by the sending end when chargingconditions are satisfied, and association is established; and 4, establishing an energy transmission link, resonance light charging is carried out through forming resonance of light in a resonance cavity between the sending end and the receiving end, and the harmonic light can automatically align at the receiving end along with movement of the receiving end. Compared with the prior art, information interaction between the sending end and the receiving end of the wireless charging system is completed in a wireless communication mode, the energy transmission link is further established, and mobile one-to-multiple real-time wireless charging is realized.

The invention relates to an amorphous hollow carbon nanotube and a preparation method thereof. The amorphous hollow carbon nanotube has an inner diameter of 50 to 100 nm, a thickness of 10 to 20 nm and a tube length of 1 to 5 [mu]m; the carbon wall of the amorphous hollow carbon nanotube is of a porous amorphous structure; and a plurality of nanoparticles are attached to the inner wall of the amorphous hollow carbon nanotube. The amorphous hollow carbon nanotube is obtained by using zinc oxide as a template and phenolic aldehyde amine resin as a carbon source through low-temperature heat treatment and hydrochloric acid etching. According to the invention, the lithium/sodium affinity of metal nanoparticles is utilized to guide lithium/sodium metals; the deposition and stripping processes ofthe lithium/sodium metals are limited in the cavity of a carbon tube; the effects of inhibiting dendritic crystal growth, limiting volume change generated in the deposition and stripping processes ofthe lithium/sodium metals and stabilizing negative electrode/electrolyte interfaces are achieved; and important application values are achieved for constructing stable and highly-efficient lithium/sodium metal batteries.

The invention discloses a power environment monitoring system, mainly applied to the mobile communication field. The power environment monitoring system comprises a central machine room SDH device, aplurality of monitoring point SDH devices, front-end processors connected in parallel with the central machine room SDH device, and monitoring units connected in parallel with the monitoring point SDHdevices, wherein the central machine room SDH device and the monitoring point SDH devises devices are connected to form an SDH access in a ring shape or link shape, the SDH circuit is provided with aspecial link for transmitting monitoring data, and each monitoring unit copies the self-obtained monitoring data to a specified time slot of the specific link and then transmits the data to the front-end processors. The power environment monitoring system is designed to save the resource of transmission circuits of the power environment monitoring system in maximum and fully utilizes the characteristic that the monitoring unit extracts the time slot to build safe, reliable and highly efficient network structure of the power environment monitoring system.

An integrated lighting control and threat detection system is provided. Once one of the threat detectors determines that a hazardous condition exists, it transmits a threat message to the lighting control system. The lighting control system then operates to turn on illumination within the dwelling to aid in an occupant's safe exiting from the dwelling. The lighting control system operates to illuminate all lights within a dwelling upon detection of a hazardous condition. Alternatively, the lighting control system operates to illuminate preselected paths of lighting as programmed by a user. Still further, coordinated illuminated control may be provided based upon the location of the detected hazardous condition and the fixed and portable lights within a dwelling. Both fixed and adaptive illumination control are provided as is a fail safe illumination of all lights within a dwelling should each of the pre-selected exit paths contain a hazardous condition.

A chloride ion fluorescence detection method and device, and a use thereof. The chloride ion fluorescence detection method utilizes chloride ions to influence luminescence characteristics of some photoluminescent substances to change the emission spectrum of the photoluminescent substances. The concentration of the chloride ions is detected through two processes comprising the fiber surface film forming and test liquid preparation of a fluorescent reagent sensitive to the chloride ions and measurement of information of fluorescence peak wavelengths or intensities. The method can be applied to the online assessment of the corrosion environment of steel bar concrete or the measurement of chloride ions in a laboratory.

According to a method and a system for establishing wireless communication connection provided by the invention, a communication interface of a wireless adapter is connected with the communication interface of a first device, and the wired data connection between the wireless adapter and the first device is established. The first device can obtain the device identifier of the wireless adapter andverify the device identifier of the wireless adapter, and when the device identifier of the wireless adapter is matched with at least one of preset device identifiers, the first device establishes a wireless communication connection with the wireless adapter based on a handshake protocol and a secure pairing mechanism. According to the method and the system, the wireless adapter is in pluggable connection with the communication interface of the first device. The safety connection between the wireless adapter and the first device is automatically established, the whole tedious process that a user participates in the connection between the wireless adapter and the first device is avoided, the user can complete the wireless connection between the first device and the wireless adapter only through simple plugging and unplugging, and the operation is quicker and more convenient.

The Intelligent Door Opening system consists of several devices that work together to identify approaching individuals, verify that they should be allowed access, which can be conducted by several different means. Once they have been approved the system will then grant them access by opening the door and then closing said door when the individual has entered the building. The Intelligent Door Opening system will also comprise several devices to add additional security to the primaries home, examples being a deadbolt that stops hackers from being able to control the other devices, a camera, and a secure locking system. The intelligent Door Opening system will add all the convenience of an automatic door as seen at a mall, but with the security to ensure that only people that are allowed access will be allowed to enter.