67results about How to "Achieve activity" patented technology

The invention discloses an intelligent network burglar-proof door composed of a hardware system and a software system. The intelligent network burglar-proof door is mainly characterized in that a software control part comprises an underlying operation system, an application software system, a human face recognition system, a fingerprint recognition system, a touch screen control system, a local / different-place storage system, an uninterruptible power supply management system, an extended interface system for controlling home appliances, a monitoring and alarming system for positioning and fortifying a multi-region zone PTZ (pan / tilt / zoom) electronic map, an access control system for controlling an unlocking motor, an intercom system capable of automatically responding, an H.264 video coding and decoding system, a 2.4G wireless video commutation system, a radio frequency communication system, a communication system for supporting TD / WCDMA (time division-wideband code division multiple access) and an Internet communication system. The intelligent network burglar-proof door checks information in real time or remotely backs up, improves data protection safety and intelligent and convenient maneuverability. The intelligent network burglar-proof door can widely serve as various burglar-proof doors, military guard burglar-proof doors, safety box doors and vehicle central door locks.

The invention discloses a core-shell structure catalyst for fuel cells and its pulse electrodeposition preparation method. The active component of the catalyst is a nanoparticle with a core-shell structure, and an active metal is cladded in the form of an ultrathin shell on the surface of a carbon carrier loaded metal or alloy nanoparticle serving as a core. The catalyst takes a non-platinum noble metal or transition metal as the core, and adopts more than one of Pt, Ir or Au as the shell. The preparation method includes: preparation of the nanoparticle serving as the core, making of a working electrode for pulse electrodeposition, and preparation of the catalyst by pulse electrodeposition. The catalyst can be used as an anode or cathode catalyst of a low temperature fuel cell. The obtained catalyst has very high stability. Compared with underpotential deposition, the method is simple to operate, has no need for inert atmosphere protection, and is more suitable for large-scale industrial production, also can greatly reduce the noble metal consumption of fuel cells, and greatly reduce the cost of fuel cells, thus having great significance in promoting the commercialization process of fuel cells.

The invention relates to a lanthanum-modified nickel-copper octanol hydrorefining catalyst, preparation and application thereof. The catalyst is prepared by taking Gamma-Al2O3 as a carrier, taking lanthanum as an auxiliary agent, taking nickel-copper as a active component and adopting an immersion method; and the aluminum oxide accounts for 40-90%in the terms of 100% by mass, the content of nickel is 1-40% in the terms of NiO, the content of copper is 1-30% in the terms of CuO, and the lanthanum as the auxiliary agent is 0.1-10% in the terms of La2O3; and a hydrogenation evaluation result indicates that the catalyst is reduced at a temperature of 350-550 DEG C, and under the conditions that the reaction temperature is 120 DEG C, the reaction pressure is 2.5MPa, the volume ratio of hydrogen to liquid is 8:1 and the volume air speed is 3.0h<-1>, the hydrogenation rates of unsaturated substances such as octylene aldehyde, isooctyl aldehyde and octylene alcohol are all more than 95%.

The invention discloses a preparation method and application of hollow tubular biochar. The preparation method includes: dispersing kapok fiber in a sulfuric acid solution for hydrothermal reaction to obtain carbonized kapok fiber; calcining the carbonized kapok fiber under protection of inert gas, cooling, washing, collecting and drying the calcined kapok fiber to obtain the hollow tubular biochar. The preparation method is simple and easy to control, carbonization and activation of the kapok fiber can be well realized on the premise that original structure of the kapok fiber is maintained, and distribution of balls in the inner surface and the outer surface of a hollow tube can be realized by controlling hydrothermal temperature and calcining temperature. In addition, the biochar prepared by the method can be applied in lithium / sodium ion batteries and supercapacitors and can be used as a carbon matrix in adsorbents, template agents and composite materials. Especially, the hollow tubular biochar presents excellent electrochemical performance when being applied in the lithium / sodium ion batteries.

The invention discloses a device for on-line issuing and activating of vehicle-mounted unit device, a vehicle-mounted device, a terminal and a backstage. As a server backstage can check videos in andout of a vehicle, shot by an intelligent mobile terminal and a unit out of the vehicle shot by the intelligent vehicle-mounted device, it can be determined whether the installation of the intelligentvehicle-mounted device is real and effective through two videos, so that it can be determined whether to activate the intelligent vehicle-mounted device, and a secondary issuing and activating of thevehicle-mounted unit can be realized in an on-line manner by a user without going to a branch.

The invention relates to a method for preparing a biological polysaccharide self-assembly modificatory chitosan antibacterial biological material, which is characterized by comprising the following steps: (1) preparing a lentinan derivant, i.e. lentinan sulfate; (2) preparing a chitosan membrane base material; (3) preparing a lentinan sulfate solution and a chitosan solution; and (4) carrying outlayer-by-layer self-assembly of the lentinan sulfate and the chitosan on the surface of the base material: respectively carrying out alternative self-assembly on the chitosan membrane base material in the lentinan sulfate solution and the chitosan solution for 5 times to obtain a surface layer-by-layer self-assembly modificatory chitosan mebrane containing 5 bilayers with the outermost layer of the lentinan sulfate, washing and drying to obtain the biological polysaccharide self-assembly modificatory chitosan antibacterial biological material. The chitosan antibacterial biological material prepared by the method has excellent antibacterial activity; and the method has simple preparation process, easy control, mild preparation conditions and low cost.

The invention provides a regenerated sand powder green concrete. The regenerated sand powder green concrete comprises, by mass, 10 to 93% of regenerated sand powder, 5 to 83% of a regenerated composite admixture, 0 to 20% of Portland cement, 0 to 5% of an alkali-activator, and 1 to 2% of an additive; a coarse aggregate free lightweight concrete with a density smaller than 1900kg / m<3> is prepared from regenerated sand powder and regenerated composite admixture at a double component doping amount of 70% or larger. The invention also discloses a preparation method of the regenerated sand powder green concrete. According to the preparation method, waste concrete cement stone flour and brick-concrete regenerated sand powder are subjected to mixing grinding so as to obtain the regenerated composite admixture which is a multi-component composite gelling material and possesses composite gelling and superimposed effect. The regenerated sand powder green concrete possesses the filling effect andmicro-aggregate effect of regenerated sand powder, and the gelling performance of the regenerated composite admixture, the double component doping amount is higher than 70%, so that regenerated material large amount doping is realized, and it is beneficial for promotion of building waste resource utilization and green development of concrete industry.

The present invention provides a novel electronic tag issuing system. The novel electronic tag issuing system comprises an electronic tag and an issuing unit backstage information system. The novel electronic tag issuing system further comprises client APP software which can carry out information interaction with the issuing unit backstage information system; the microcontroller chip of the electronic tag is connected with a wireless communication module and is provided with a software module which is used in cooperation with the client APP software; the issuing unit backstage information system receives the input of user information and vehicle information through the client user interface of the issuing unit backstage information system or the client APP software; primary issuing of the electronic tag is completed; the secondary issuing of the electronic tag is completed; the electronic tag is bonded onto a designated position of the vehicle of a user; and issuing interaction with the wireless communication module of the electronic tag is carried out through the client APP software, and activation is completed. The system of the invention can realize self-service issuance and activation for customers and can assist in saving social resources.

The invention provides a wiggle-tail vertebrate training device, which comprises a base, an armrest mechanism, an abdomen support mechanism and a lower limb wiggling mechanism, wherein the armrest mechanism, the abdomen support mechanism and the lower limb wiggling mechanism are sequentially arranged on the base; the lower limb wiggling mechanism comprises a fan-shaped wiggling slide plate and a crank and rocker mechanism; the crank and rocker mechanism is in transmission connection with the fan-shaped wiggling slide plate and can drive the fan-shaped wiggling slide plate to wiggle leftwards and rightwards; two fan-shaped moving blocks are embedded in the fan-shaped wiggling slide plate; and a crus support mechanism is arranged on each of the two fan-shaped moving blocks. The wiggle-tail vertebrate training device has the advantage that various wiggling training modes including the crawling wiggling, the knee standing wiggling, the climbing wiggling, the bending wiggling and the like can be realized.

The invention discloses a data reproduction method of cooperative office system application level disaster recovery system. The method comprises the following steps: a cooperative office system correspondingly sets a reproduction mechanism according to data types, and according to difference of usage requirements of a local file of a disaster recovery center, respectively uses middle file asynchronous reproduction and application file redundant uploading methods to perform reproduction; more local files of task cooperation exist, since timeliness requirement of region isolation on data reproduction is not high, a between-center file asynchronous reproduction method is used; official document transmission and data exchange belong to a data exchange center, the application file redundant uploading method is used, and pressure of real-time reproduction is shared in a service operation process of each time. The key of realizing active-active disaster recovery in the method provided by theinvention is unification of back-end data of two centers.

The invention relates to a full-automatic integrated processing machine of a video graphics array (VGA) interface. The full-automatic integrated processing machine comprises a rack and a power distribution control box, wherein a transmission groove is formed in the rack and is matched with a product, a clamping device, a bolt loading device and a bolt locking device are arranged at a left part of the transmission groove and are matched with one another, an upper bending device and a lower bending device are arranged at a right part of the transmission groove and are matched, detection devices are arranged at a left side of the upper bending device and a right side of the lower bending device, the upper bending device comprises an upper bending air cylinder, an upper bending block is connected with the upper bending air cylinder and is provided with a bending inclined surface inclining at an angle of 45 degrees at an outer side, the lower bending device comprises a lower bending air cylinder, and a lower bending block is connected with the lower bending air cylinder and is provided with a bending inclined surface inclining at an angle of 45 degrees at an inner side. By the full-automatic integrated processing machine, automatic integrated processing is achieved, meanwhile, the accurate bending angle of a terminal can be ensured, detection leakage is prevented, and the processing efficiency is improved.

The invention relates to an information processing method, an information processing device, a storage medium and a terminal. The method comprises the steps of monitoring broadcast information from anSIM state change state when a virtual user identity recognition module SIM card operating system receives a virtual SIM card activation command; when the broadcast information comprises a message ofchanging a first state of a virtual SIM card to a second state, setting the preset virtual SIM card to be the SIM card applied to network communication; when the broadcast information comprises a message of changing the second state of the virtual SIM card to a third state, setting a network type of network communication to be the network type applicable to the virtual SIM card; and when the broadcast information comprises a message of changing the third state of the virtual SIM card to a fourth state, configuring a network parameter needed by the virtual SIM card for performing network communication. According to the information processing method and device, the storage medium and the terminal, convenience of the virtual SIM card for performing network communication can be improved.

The invention relates to a panel computer, and particularly to a home-based old person caring intelligent panel computer for the old persons and a home-based old person caring platform with the panelcomputer. The home-based old person caring intelligent panel computer is internally provided with a health center module, a home nursing module, a shopping agent service module, a familial affection amusement module, a sprit home module, a mutual help old person caring module, an NFC card swiping chip, a one-key calling module and a one-key asking-for-help module. The one-key asking-for-help module comprises a one-key calling button which is arranged on the housing, and a one-key calling terminal. The interface of the one-key calling terminal is provided with a home manager button and a calling button for binding of heads of family members and friends. Through clicking the home manager button or a family-member and friend button, real-time video calling can be realized. The one-key callingfunction of the panel computer according to the invention can realize calling selection for personnel of an old person caring platform service enter and the family member and friend. Unique identifications of the service enter and the family member and the friends are realized. The telephone numbers of the family members and the friends are marked by heads. Video communication can be realized incalling.

The invention discloses a bionic bone repair material having good machinery performance and biological activity and a preparation method thereof. The preparation method comprises the following steps: 1) using a rapid moulding technology for performing three-dimensional printing on a large aperture PCL rack to obtain a primary structure; 2) activating the surface of the PCL rack having the primary structure; 3) employing collagen network for performing three-dimensional function activation on the PCL rack having the primary structure to obtain a Col-PCL rack having a secondary structure; and 4) employing nano hydroxyapatite particles for bionic mineralization on the Col-PCL rack to obtain an AP-Col-PCL rack having a third structure; The product combines a rapid moulding technology and a biomaterial three-dimensional modification technology, constructs the bionic bone repair material AP-Col-PCL having good machinery performance and biological activity which, and can be used for bone defect research and clinical treatment.

The invention discloses a method for preparing double target magnetic nanoparticle of liver cancer. The preparation method of the invention comprises preparation of superparamagnetic nanoparticles (SPIO), PEG modification of the superparamagnetic nanoparticles (SPIO), and modification of SPIO cross-linking double anti-CD34 and anti-AFP by using DSPE-PEG2000. The nanoparticle prepared by the invention can target the alpha-fetoprotein-positive liver cancer cells and the liver cancer neovascular endothelial cells, and the magnetic resonance MR imaging can dynamically trace the SPIO-PEG-BsAb in vivo, and the important role of evaluating the diagnosis of liver cancer is evaluated from the molecular level. The method realizes the purpose of dual molecular imaging of liver cancer cells and livercancer blood vessels, and provides new ideas and new ways for the molecular level diagnosis of liver cancer and other malignant tumors and the dynamic evaluation of anti-angiogenic targeted therapy.

The invention relates to the technical field of cell amplification culture and discloses a method for efficient in-vitro amplification of peripheral blood NK cells. The method comprises the followingsteps: 1) performing anticoagulation on whole blood by heparin sodium, and diluting by PBS; 2) spreading the diluted anticoagulant whole blood on the liquid level of a lymphocyte separation liquid; 3)centrifuging, absorbing a white film layer, blowing, beating and uniformly mixing the white film layer, centrifuging, discarding the supernatant and repeatedly washing; 4) removing CD3+ lymphocytes,dyeing peripheral blood monocyte antibodies and sorting the cells; and 5) diluting the CD3+ lymphocytes, adding IL-2, IL-15, IL-21 and L-7 and performing amplification. The CD3+ cells are removed before amplification, so that the cellular immunogenicity is greatly reduced; meanwhile, four specific cell factors are used according to the specific proportion to activate and amplify the NK cells, so that the amplification multiple of the NK cells is guaranteed and the safety of the NK cells during treatment is greatly improved.

The invention provides a vacuum glass panel with an external cavity, which is used for well solving the problem of the accommodation of a getter or other devices. The external cavity is only connected with a vacuum layer through a small pore canal or an airtight pipeline prearranged in an edge sealing layer of the vacuum glass panel, so that the influence on the stress of the vacuum glass panel is very small. The size of the internal space of the cavity and accommodating quantity can be determined as required; and meanwhile, material selection of the cavity is wide, so that the requirement of accommodation of various large-sized getters can be met. In the vacuum glass panel provided with a plurality of external cavities, the getters can be activated or deblocked segmentally as required, so that long-term preservation of a vacuum degree is facilitated.

The invention discloses a method for comprehensively culturing cistoclemmys flavomarginata by incubating from breeder to adult. The method comprises the following steps: 1) breeder, namely a, breeder identification; b, breeder raising; c, breeder mating; and d, spawning and inoculation; 2) infants, namely a, infant early raising; b, infant later raising; and c, infant overwintering; 3) young turtles, namely a, stocking; b, diet feeding; c, daily management; and d, young turtle overwintering; and 4) adults, namely a, stocking; b, diet feeding; c, daily management; and d, adult overwintering. The culturing method can be used for increasing the survival rate of cistoclemmys flavomarginata to 90 percent so as to greatly reduce the death rate in infant period and young turtle period, and carrying out comprehensive culturing from the source, and has the advantages of high breeder mating efficiency, high fertilized ovum quality, scientific management, high adult quality, high ornamental value and high medicinal value.

The invention relates to a chair footrest device. The chair footrest device comprises a connecting seat assembly, a three-bar assembly, a footrest assembly and a positioning assembly. The connecting seat assembly is fixedly connected to the lower surface of a chair mat; the upper ends of a front member and a rear member of the three-bar assembly are respectively connected with the front connecting member and the rear connecting member of the connecting seat assembly; the lower ends of the front member and the rear member are respectively connected with a horizontal member of the three-bar assembly; the footrest assembly is connected to the horizontal member; the positioning assembly is arranged between the connecting seat assembly and the three-bar assembly and constitutes a four-bar mechanism / parallelogram mechanism. Through operation of a main operating handle and an auxiliary operating handle or a push-pull member, the footrest assembly can be positioned forwards to the highest or desired position and retracted backward below the chair. The chair footrest device disclosed by the invention has the advantages of being simple in structure, practical, convenient to operate and high in reliability; when being matched with the chair back, the chair footrest device can turn the sitting posture into lying posture or semi-lying posture, but is not limited to solving the problem of the footrest in lying or semi-lying to sleep / rest; the chair footrest device can conveniently add additional functions on a newly-designed chair or an original chair, so that the harm to sedentary people having sedentary behavior is reduced or eliminated.

The invention discloses a mobile house. The house comprises a house body and a sliding floor; the house body comprises a roof and a side wall, wherein the side wall comprises a composite wall body, and a ventilation system is arranged on the side wall; a solar water heater, a rainwater collecting system, a solar photovoltaic power generation system and a solar photovoltaic wind power generation system, a wind-solar complementary electricity utilization system composed of the solar photovoltaic power generation system and the solar photovoltaic wind power generation system are arranged on the roof; a water outlet of the rainwater collecting system is connected with a water inlet of the solar water heater; the water outlet of the solar water heater is connected with water equipments in the room and a heating heat exchange pipe correspondingly; solar heat storage and heat preservation modules are arranged in the sliding floor; the house body further comprises an integral bathroom and an integral kitchen. According to the mobile house, energy self-sufficiency can be realized under the condition that the energy is shortage and the living environment is bad, and the house with the comfortable living requirements of users can be guaranteed.

The invention discloses a portable intelligent self-powered mobile sleep apparatus. The apparatus is composed of a cushion part directly bearing the weight of a human body, a backrest part supporting the back of the human body and a matching pillow. The backrest part is fixedly connected with an upper fixing stub strap which is fixed on a transverse handle located on a passenger head position inside a rail public transport vehicle. The front of the cushion part is fixedly connected with a protective belt which is also fixed on the transverse handle. A temporary sleep suspender system hung on the transverse handle is thus formed. The pillow position is adjustable. An intelligent wakeup system composed of a self-powered unit, an energy storage element and an intelligent positioning wakeup device is further arranged. A prompt in advance is provided for a user according to a remaining distance between the rail transport vehicle and a preset destination. By means of high-performance fibers, piezoelectric materials, a satellite positioning system and energy storage materials, the portable intelligent self-powered mobile sleep apparatus with an arrival wakeup function is made. A sleep function and an arrival wakeup function are provided for the user when taking a rail transport vehicle.

The invention discloses a levofloxacin (rhodanine unsaturated ketone) amide derivative and a preparation method and an application thereof. The levofloxacin (rhodanine unsaturated ketone) amide derivative adopts the following chemical structural general formula I (shown in the specification); and in the formula I, Ar represents a benzene ring or a substituted benzene ring or a furan ring or a pyridine ring. On the basis of a medicine molecule construction strategy of pharmacophore splice, the levofloxacin (rhodanine unsaturated ketone) amide derivative disclosed by the invention implements superposition of four pharmacophores of a chiral tricyclic fluoroquinolone skeleton, amide, rhodanine and alpha, beta-unsaturated ketone, so that the antineoplastic activity of a new compound is improved, the toxic or side effects on normal cells are reduced, and the levofloxacin (rhodanine unsaturated ketone) amide derivative can be used as an antineoplastic active substance for developing an antineoplastic medicament of a brand-new structure.

The invention discloses a foamy copper in-situ growth copper oxide / cuprous oxide photocatalytic material as well as a preparation method and application thereof. The preparation method comprises the following steps of dissolving NaOH in deionized water to obtain a solution A, adding NaCl into the solution A to obtain a solution B, and adding a dispersing agent into the solution B to obtain a solution C, taking a foam copper sheet as an anode, taking an inert electrode as a cathode, taking the solution C as electrolyte, enabling the anode to be subjected to oxidation treatment, then using deionized water for repeatedly washing the foam copper sheet subjected to anodic oxidation, and acquiring a product D attached with a black active substance, and annealing the product D to obtain the foamy copper in-situ growth copper oxide / cuprous oxide photocatalytic material. The phase-controllable copper oxide / cuprous oxide photocatalytic film material is obtained, the microtopography of the material is regulated and controlled from coexistence of nanorods and nanoparticles to regulation and control of the nanoparticles, and the light absorption and photocatalytic activity of the photocatalytic film are regulated and controlled by controlling the phase and the topography.

The invention discloses an automatic SVF (Stromal Vascular Fraction) cell separating device. The device comprises a rack, wherein a liquid feeding component, a main body tank, a filter device and a power device are arranged on the rack; the liquid feeding component and the main body tank are connected through a guide pipe; and the main body tank and the power device are connected through two guide pipes, one guide pipe directly connected with the power device and then connected with a collector and the other guide pipe is connected with the power device after passing through the filter device and then connected with a waste liquid cylinder. By means of the device, SVF cells can be full-automatically collected under the conditions of sealing and asepsis in whole process. The device is reasonable in structural design, convenient and simple in use, controllable in separation process and high in separation rate and is capable of greatly saving the separation time, increasing the separation efficiency and guaranteeing the activity of adipose-derived stem cells. Accordingly, the invention also discloses a corresponding application method and by applying the automatic separating device and the method thereof, the management and the industrialization of large-scale separation and extraction of the SVF cells can be realized.

The invention discloses a surface treatment method for a fiber reinforced composite material. The surface treatment method comprises the following steps that one beam of ultra-short pulse laser and one beam of nanosecond laser are selected as laser sources, beam combing are carried out, the two beams of laser are with the same pulse repetition frequency and wavelength, and then the two beams of laser vertically converge to the surface of a sample after being subjected to light intensity homogenization through a beam shaping element; when the ultra-short pulse laser intensity is greater than orequal to the multi-photon absorption threshold light intensity of the surface of the composite material, multi-photon absorption occurs on the surface of the sample in a laser irradiation range, andwhen the nanosecond laser energy is absorbed until an ablation threshold is reached, a surface thin layer of the sample is removed, so that the surface of the sample is cleaned and activated; and theentire surface of the sample is treated as the laser scans along a pre-designed route and a displacement table moves in cooperation. The surface treatment method for the fiber reinforced composite material removes impurity contaminants (such as a release agent on the surface of a part) on the surface of the fiber reinforced composite material, and activates the surface, so that effective chemicalbonding is realized.

The invention relates to an automatic demounting and mounting device special for an electric automobile charging pile and a demounting and mounting method of the automatic demounting and mounting device. The automatic demounting and mounting device comprises a bottom plate. A demounting and mounting mechanism is installed at the middle portion of the lower end face of the bottom plate. Movable mounting and automatic demounting functions can be achieved on an existing charging pile through the demounting and mounting mechanism, and manual installation is not needed. Two dust suction mechanisms are symmetrically installed on the left side and the right side of the end face of the bottom plate. The two dust suction mechanisms are oppositely located on the two sides of the demounting and mounting mechanism. Due to the fact that the demounting and mounting mechanism can generate a large amount of dust in the process of installing the existing charging pile, the two oppositely-arranged dust suction mechanisms can rapidly suck dust generated in the installation process, and the phenomenon that an operator sucks the dust, and consequently the body health is affected is prevented. According to the automatic demounting and mounting device special for the electric automobile charging pile and the demounting and mounting method of the automatic demounting and mounting device, the movable mounting and automatic demounting functions on the charging pile can be achieved, manual demounting and mounting are not needed, operation is easy and convenient, the work efficiency is high, and the beneficial effects that only one person needs to conduct operation, the labor cost is low, the labor intensity is low, the demounting and mounting process is fast, and the demounting and mounting efficiency is high are achieved.

The invention relates to an automatic locking detection mechanism with VGA port which includes a rack and a power distribution control box. The rack is provided with a convey trough coordinating productions. A chucking mechanism, a bolt feeding mechanism and a bolt locking mechanism, all of which interworks and disposed on the left of the convey trough. The right of the convey trough is provided with a detection mechanism. The upside of the chucking mechanism is provided with a locking positioning mechanism. The locking positioning mechanism comprises a bolt positioning air cylinder disposed on the front and back sides of the convey trough. The bolt positioning air cylinder is connected with a set piece. A bolt set piece is located on the top of the convey trough. The connection of two bolt set pieces is provided with bolt positioning holes which match up bolts. The bolt positioning holes is coordinated with bolt open holes of productions of the convey trough. The automatic locking detection mechanism with VGA port realizes an automatic integration locking and detection and ensures precise place and tightening of the bolt at the same time and improves the yield of the bolt locking.

The invention provides a lead code setting method and device. The method comprises that a first lead code length value which is needed when an optical module of an optical network unit (ONU) achieves stable illumination and a second lead code length value issued by an optical line terminal (OLT) are obtained; and when the first lead code length value is greater than the second lead code length value, the lead code length during registration of the ONU is adjusted the length corresponding to the first lead code length value. According to the technical scheme provided by the invention, the problem that failure of ONU registration caused by the lead code cannot be determined by proper schemes in the ONU registration process is solved; the optical module can achieve stability no matter the OLT requires a long packet or a short packet during intercommunication between different devices; and the ONU is activated and registered, and conflict between the optical module hardware of the ONU and the OLT during intercommunication is overcome.

The invention discloses a lipase mutant and application thereof in preparation of (S)-2-chlorophenylglycine methyl ester. The lipase mutant is obtained by mutating glutamine at the 157th site of an amino acid sequence shown in SEQ ID No. 2 into phenylalanine, mutating isoleucine at the 189th site into lysine and mutating valine at the 154th site into aspartic acid. According to the lipase mutant,through molecular docking and site-saturation mutagenesis, the lipase mutant which can obviously shorten asymmetric hydrolysis reaction time and has high resolution efficiency and high selectivity onR-type 2-chlorophenylglycine methyl ester is obtained by screening; after the mutant reacts for 12 hours, the yield of the (S)-2-chlorophenylglycine methyl ester reaches 72.81%, and the ee value is 95.24%; and compared with a wild type, the lipase mutant has the charactersitics that activity improvement and selective inversion are realized, and the reaction time is shortened.

The invention provides an information diffusion method and system for precise information popularization and spreading. The method comprises: a server collects logging in information of a first mobile terminal and a second mobile terminal; the server receives an information spreading request uploaded by the first mobile terminal; the server sends the information spreading request to the second mobile terminal; and the second mobile terminal sends information included by the information spreading request to a predetermined number of user terminals that are associated with the second mobile terminal and meet a sending attribute requirement. Compared with the prior art, the method and system provided by the invention have the following beneficial effects: with combination of ways of increasing the user terminal number based on autonomous association invitation request sending by a user mobile terminal and user terminal recommendation by the server, the user mobile terminal can be stimulated to expand the user number of the platform autonomously, so that the user number of the platform can be extended and diffused rapidly and thus the information can be spread effectively and rapidly.