41results about How to "Security control" patented technology

The invention provides a bolt fastening system which belongs to the safety control field of bolt flanges of petroleum and petrifaction devices. The bolt fastening device comprises a data parameter acquisition module, a computation analysis module of bolt fastening loads, a bolt fastening execution module and a data on-line detection and reliability analysis module. The computation analysis moduleof bolt fastening loads computes and analyzes load data required by fastening a bolt according to data parameters in a database and transmits the computed load data to the bolt fastening execution module; and the bolt fastening execution module automatically selects a used fastening mode according to the computed load data, thereby guiding the fastening execution operation. The bolt fastening system has convenient and reliable operation, accurately controls the bolt fastening operation, can reflect the stress condition of the bolt in real time and alarm when exceeding the safety guard, therebyradically controlling the safety of flanges.

The invention discloses a moisture absorption hot air circular drying oven. The moisture absorption hot air circular drying oven comprises a box body, a drying chamber and a hot air circulating pipeline, wherein the drying chamber and the hot air pipeline are arranged in the box body; a gap among the box body, the drying chamber and the hot air pipeline is taken as a thermal insulation layer; the hot air circulating pipeline is connected with a top plate of the drying chamber and a bottom plate of the drying chamber; a plurality of ventilation holes are distributed in the top plate of the drying chamber and the bottom plate of the drying chamber; the lower part of the bottom plate of the drying chamber is provided with support columns which are connected with the box body; a circulating fan is arranged in the hot air circulating pipeline; a moisture absorption device is arranged in the hot air circulating pipeline; the hot air circulating pipeline is connected with an air supplementing pipe; a plurality of partition plates are arranged in the drying chamber; the inner wall of the drying chamber is provided with a heating pipe, a temperature measuring device and a safety pipe; the other end of the safety pipe is communicated with the atmospheric air; a safety valve is arranged at one end where the safety pipe is communicated with the atmospheric air; a control processing device is arranged outside the box body; the bottom of the box body is provided with pulleys. By adopting the moisture absorption hot air circular drying oven, hot air can be used circularly to the maximum extent, and the drying efficiency is increased.

The invention discloses a boundary coal shortwall continuously-mining tunnel arrangement and coal pillar preserving methods, according to three typical overlying rock structures, three coal pillar arrangement methods are proposed, and the three coal pillar arrangement methods are respectively a block section wide coal pillar arrangement method, a block section narrow coal pillar arrangement method and a block section non coal pillar arrangement method. Compared with the traditional shortwall continuously-mining tunnel technique tunnel arrangement and coal pillar preserving methods, by the boundary coal shortwall continuously-mining tunnel arrangement and coal pillar preserving methods, the coal pillar size is reduced, the recovery rate of resources can be improved, the roof essential security can be realized, roof safety can be effectively controlled, tunnel excavation and maintenance amount can be reduced, and the risk of coal spontaneous combustion can be reduced.

The invention discloses a community management system based on a cloud platform. The community management system comprises a monitoring center, wherein the monitoring center is connected with a controller by virtue of a network interface, the controller is in communication connection with a pedestrian passage access control, a camera, a face recognizer, an FRID card, a fingerprint module and a two-dimensional code scanning module, and the monitoring center is connected with a computer and a data center. By arranging the face recognizer, the camera and the pedestrian passage access control which cooperate mutually, entry by face is realized; meanwhile, entry by swiping the RFID card can also be realized, as well as the entry by pressing fingerprints and scanning the two-dimensional code and inputting a password by virtue of a mobile phone terminal can be realized, so that the random entry of strangers to the community can be effectively prevented, the security of the community is effectively guaranteed; and the picture that the personnel enters and exits a gate can be observed in real time by virtue of the monitoring center, so that the security of the community is further controlled.

An embodiment of the invention discloses a security assessment method and device, a computer device and a readable storage medium for implementing assessment on safety awareness of employees in enterprises, governments and other institutes. The method according to the embodiment comprises: acquiring personal information of a user; using the personal information to perform social engineering deceiving on the user; assessing the safety awareness of the user according to the deceiving results to generate a safety assessment report.

The invention relates to a method for improving a control effect of entomopathogenic nematodes on Chinese chive maggots. The method comprises the steps that thiamethoxam diluent is mixed with entomopathogenic nematodes which accord with detection conditions to prepare synergistic suspension, the concentration of the nematodes in the synergistic suspension ranges from 500 IJS / mL to 1000 IJS / mL, and the concentration of thiamethoxam ranges from 12 mg / L to 15 mg / L; the synergistic suspension is applied to killing of Chinese chive maggot larva when the Chinese chive maggots are in the larval phase, and normal field management is conducted after application is conducted; under field conditions, the method of adding low-concentration thiamethoxam for utilizing the entomopathogenic nematodes to control the Chinese chive maggots is adopted, the control effect of the entomopathogenic nematodes on the Chinese chive maggots of vegetables such as Chinese chives, green Chinese onions, shallots and garlic which are prone to being damaged by the Chinese chive maggots can be significantly improved, an obviously synergistic effect of the nematodes and the thiamethoxam on control of the Chinese chive maggots is embodied, usage amount of the thiamethoxam and other pesticides are significantly decreased, the baiting technique of a black sticky trap on imagoes is combined, the initial population number of a field is effectively decreased, and the purpose of controlling the Chinese chive maggots in a safe and nuisanceless mode can be really achieved.

The invention relates to a carbon-fiber-reinforcement external pre-stressing tension anchor device and an anchoring method. The carbon-fiber-reinforcement external pre-stressing tension anchor device comprises an L-shaped steel plate, a double-sleeve screw device and a clip-type anchorage for fixing a carbon fiber reinforcement, wherein the L-shaped steel plate can be fixed with a beam through a bolt, and two side faces of the L-shaped steel plate are welded with steel sheets; and a hole is formed in the middle of the double-sleeve screw device, the carbon fiber reinforcement can penetrate through the hole, and the double-sleeve screw device can be manually twisted. The device has the advantages simple structure, convenience in installation construction and short period and quickly reinforces the beam on the premise of uninterrupted traffic, the beam is not damaged in the whole installation process, and the size of pre-stressing is controlled and adjusted in real time through the double-sleeve screw device. As the structure is simple, other force applying devices are not used and the traffic is not interrupted in the installation force-applying process, and the economic cost is effectively saved.

The invention discloses an Alterneria tenuissima strain and application thereof in biological weeding. The classified name of the strain is Alterneria tenuissima, the complete name of the strain is Alterneria tenuissima HZ-1, the strain is preserved in the China General Microbiological Culture Collection Center located at the No.3 room, No.1 yard, Beichen west road, Chaoyang district, Beijing city, China on January 11, 2016, and the preservation number is CGMCC No.11992. The Alterneria tenuissima is used for biological weeding of broad-leaved weeds such as galium tricorne, chenopodium album and malva verticillata in a highland barley field, a broad bean field and a pea field and can effectively control and prevent the broad-leaved weeds.

The invention discloses a reagent for prevention and treatment of fruit disease of bagging fruit. The raw material of the reagent consists of chloramines T 50 percent to 80 percent, diatomite 11 percent to 25 percent, stearic acid 3 percent to eight percent, shellac 5 percent to 13 percent and hydroxypropyl methyl cellulose 1 percent to 4 percent. The invention also discloses the preparation method for the reagent which is as follows that three different particles are prepared with the formula according to different ratio so that the particle can release germicide at different time and disease prevention for a long time can be achieved. According to the characteristics of bagging fruit disease occurrence, the reagent provided by the invention changes traditional method for medicine application, not only reducing medicine application cost, but also improving prevention efficiency, increasing harvest level and commodity rate and reducing environmental pollution, moreover, win-win result can be achieved.

The invention relates to an mRNA-coding nanobody and application thereof, belongs to the field of biomedicine, and particularly relates to the field of nanobody drugs. In order to solve the problems, a new thought and method system is provided for regulating intracellular proteins by using the RNA-coding nanobody. According to the mRNA-coding nanobody provided by the invention, the coded message carried by mRNA is recognized and translated in cells to express a single-stranded nanobody capable of binding to a target protein. The function of disease-related proteins in cells can be effectively and specifically intervened by adopting the method so as to achieve the purpose of treating diseases. Different from the common strategy for expressing nanobodies in cells by using a DNA or virus as a carrier, the method eliminates the risk of altering of the genome sequence of host cells, has the characteristics of safety and easiness in removal, and is very suitable for clinical drug design and production needs.

The invention relates to a construction method of integral replacement of an existing electric railway overhead contact system crossover and a section insulator. The construction method includes following steps: a, decomposing and mooring the existing crossover; b, measuring decomposing length of a new crossover to be set up; c, setting up a long anchoring section of the new crossover, and removing a long anchoring section of the existing crossover; d, integrally replacing a new crossover short anchoring section and a new section insulator; e, performing suspension adjusting and power transmission operation. In actual work, according to actual conditions that railway busy mainline vertical skylights are short in blocking time, few in number and low in demand rate and existing overhead contact system crossover and station tracks are in a same anchoring section, the construction method is acquired through careful design and repeated verification. Inherent thinking of existing crossover and section insulator replacement construction processes is broken through, and construction efficiency and construction safety are remarkably.

The embodiment of the invention provides a panoramic image view switching method and device and an automobile. The panoramic image view switching method comprises the steps that the type of a currentautomobile panoramic view is monitored; if the current vehicle panoramic view type is monitored to belong to a preset panoramic view type, a target vehicle panoramic view type is determined accordingto the driving operation and the current state of the vehicle; and a panoramic view currently displayed on a display interface in the vehicle is switched into a panoramic view corresponding to the panoramic view type of the target vehicle. According to the panoramic image view switching method and device and the automobile provided by the embodiment of the invention, the logic of automobile panoramic image view switching is improved, the target view can be accurately and quickly switched, the complexity of driver operation is reduced, the use experience of the panoramic view is improved, the most intuitive panoramic view angle is provided, and the driving safety is enhanced.

The invention relates to a method for enhancing the control effect of peach fruit moths. The method includes the steps of before overwintering mature larvae of the peach fruit moths come out of the ground for eclosion each year, mixing hexaflumuron diluent with entomopathogenic nematodes in accordance with test conditions to prepare nematode hexaflumuron suspension liquid, wherein the concentration of the nematodes in the nematode hexaflumuron suspension liquid is 500-1000 IJS / mL, and the concentration of hexaflumuron is 15-20 mg / L; when a lure lures a first imago, applying the nematode hexaflumuron suspension liquid in an orchard to kill the mature larvae of the peach fruit moths. The method can effectively solve the key technical problems that the emergence period of the peach fruit moths is long in duration, generations overlap, a key control period cannot be effectively grasped, and the control effect is unsatisfactory; therefore, descendants of the peach fruit moth do not form effective egg laying to inhibit the egg laying amount and egg hatchability of the descendants to the maximum extent, in addition, the usage amount of the entomopathogenic nematodes and the hexaflumuron can be decreased, so that the environment-friendly control purpose of the peach fruit moths can be achieved.

The invention provides slow-release algal inhibition microspheres as well as a preparation method and application thereof. The slow-release algal inhibition microspheres are prepared from the following raw materials: 1%-1.5% (w / v) of luteolin, 18%-20% (w / v) of olive oil, 10%-12% (w / v) of an emulsifier, 10%-12% (w / v) of a co-emulsifier, 1%-2.5% (w / v) of sodium alginate, 0.2%-0.3% (w / v) of chitosan, 4%-8% (w / v) of calcium chloride and 0.5%-1% (v / v) of a cross-linking agent. The slow-release algal inhibition microspheres provided by the invention can slow down and control the release rate of luteolin, the preparation process is simple, the cost is low, no pollution is caused to the environment, growth of microcystis can be remarkably and efficiently inhibited within 30-50 days through continuous and slow release of luteolin, meanwhile, release of microcystins (MCs) is efficiently inhibited, repeated addition of an algal inhibition agent is not needed, and the long-term and stable effect on efficiently inhibiting cyanobacterial bloom outbreak is achieved.

The invention discloses a monitoring system and method for a dynamic operation track of a lifting machine. According to the method, real-time dynamic collection of fixed-point sound track is carried out on friction sound between a wheel and a track through a fixed-point sound collecting cover, real-time positioning is carried out through a position indicator, and then the fixed-point sound track is compared with a set mother sound track through a CPU so as to detect abnormal conditions in real time and give an alarm. According to the system and the method, the travelling tracks of large lifting devices can be dynamically monitored under a less-people state and an unmanned state, the system is a whole set of system with integrity, in actual production, the problem that the lifting machine track is abnormal can be effectively solved, the lifting safety operation rate is improved, abnormal accidents are prevented, the safety of the production logistics is effectively controlled, so that the effect of solving the production safety problem is achieved.

The invention discloses an application of depolymerized holothurian glycosaminolycan in medicine preparation. The weight-average molecular weight of the depolymerized holothurian glycosaminolycan is 51,000Da to 54,500Da. The test on animals proves that when a certain dosage (3-100mg / kg) of the depolymerized holothurian glycosaminolycan, the weight-average molecular weight of which is 51,000Da to 54,500Da, is subcutaneously injected, the depolymerized holothurian glycosaminolycan has obvious anti-freezing activity. The invention gives full play to the advantages of the traditional Chinese medicine by adopting the modern science and technology. Lots of experimental studies prove that the preparation can be used for safely and effectively preventing and treating thrombotic diseases including deep venous thrombosis, thrombophilia or venous thromboembolism of pregnant women, blood clot formation during hematodialysis and the like.

The invention discloses a cloud platform-based community service system, which comprises a safety management system and a logistics system. The safety management system comprises a monitoring center. The monitoring center is connected with a controller through a network interface. The controller is in communication connection with a pedestrian access entrance guard, a camera device, a human face recognizer, a fingerprint module and a two-dimensional code scanning module. The monitoring center is connected with a computer and a data center. The logistics system comprises a freight information server. The freight information server is connected with a logistics control server through a wireless communication module. The logistics control server is in communication connection with an intelligent express cabinet. The intelligent express cabinet comprises a plurality of storage boxes. Each storage box comprises a box body, and the box body is connected with a box cover through a rotating shaft. The opened end of each box body is provided with a U-shaped groove. The box cover is provided with a U-shaped bulge matched with the U-shaped groove. A rubber sleeve is sleeved on the outer wall of the U-shaped bulge. The intelligent express cabinet has the dustproof function.

The invention discloses a calibration platform temperature and pressure alternating control system and control method. The calibration platform temperature and pressure alternating control system and control method are applied to a deep in-situ fidelity coring "five-protection" capability calibration platform. The calibration platform temperature and pressure alternating control system is characterized in that temperature and pressure sensors are mounted on multiple monitoring points in a simulation cabin and a pipeline. Through an automatic data acquisition system and a computer technology, a reliable temperature and pressure control system is provided for the deep in-situ high-temperature and high-pressure environment simulation cabin while the safety of the high-temperature and high-pressure pipeline is ensured, and basic advanced research conditions can be provided for advanced exploration of deep in-situ rock mechanics and deep science. According to the calibration platform temperature and pressure alternating control method, when the cabin is heated and pressurized, the pressure-temperature-pore pressure coupling relation is fully considered, the implementation scheme idea of presetting the "five-protection" capability calibration environment is provided, and calibration environment presetting and control can be stably achieved.

The invention relates to a method for improving the effect of entomopathogenic nematodes on controlling chive maggots. A synergistic suspension is obtained by mixing a thiamethoxam dilution with entomopathogenic nematodes meeting the detection conditions, and the concentration of nematodes in the synergistic suspension is 500-1000IJS / mL, the concentration of thiamethoxam is 12-15mg / L; the synergistic suspension is used to kill the maggot larvae in the larval stage of the leek maggot, and normal field management is carried out after application; under field conditions, the entomopathogenic nematode is used to control the maggot maggot The method of adding low-concentration thiamethoxam can significantly improve the effect of nematodes on leeks, scallions, onions, shallots, garlic and other vegetable crops that are easily harmed by leek maggots. The control of nematodes and thiamethoxam on leek maggots shows The obvious synergistic effect can significantly reduce the usage of thiamethoxam and other insecticides, combined with the trapping and killing technology of adults with black sticky boards, it can effectively reduce the number of insect populations in the field, so that the prevention and control of leek maggots can truly achieve the goal of safety and pollution-free.

The invention discloses a stirring device. The stirring device comprises a stirring tank with an upward opening, a support frame fixedly connected to the cylinder mouth of the stirring tank, and a stirring tank arranged on the support frame with one end extending to the inside of the stirring tank. Rod; the groove is arranged along the length direction of the first hollow cylinder; the first hollow cylinder is sleeved on the stirring rod through the second hollow cylinder; and the outer wall of the second hollow cylinder is provided with multiple a protrusion matched with the groove, so that when the second hollow cylinder rotates along the circumferential direction of the stirring rod, the groove can stop the protrusion; the second hollow cylinder The body is movably socketed on the side of the paddle; the support frame is fixedly provided with a drive device to drive the paddle to rotate, and the rotor of the drive device is fixedly connected to the paddle. The stirring device can reduce the noise of the stirring rod and can keep the stirring rod stable during the stirring process, so as to prevent the splash of sewage from endangering the safety of workers.

The invention discloses a safety evaluation method for edwardsiella disease phage therapy in aquaculture, and belongs to the technical field of biology. The evaluation method disclosed by the invention is further applied on the basis of the obtained Edwardsiella bacteriophage EPP-1, and a safety evaluation method is provided for a bacteriophage prevention and control scheme of Edwardsiella disease frequently occurring in aquaculture. Compared with florfenicol, the two compounds have equivalent curative effects, so that the compound has a bright prospect when being used as an edwardsiella disease biological control agent in aquaculture; the enzyme activity and inflammatory cytokines in the intestinal tract and liver of the zebra fish are measured to characterize the influence of the enzyme activity and inflammatory cytokines on the antioxidant capacity and immune system of organisms; compared with florfenicol, the bacteriophage EPP-1 has the same curative effect, but has less influence on the oxidation resistance and immune system of zebra fish, and can be used as a potential biological agent for preventing and treating Edwardsiella disease in aquaculture.

The invention discloses a reagent for prevention and treatment of fruit disease of bagging fruit. The raw material of the reagent consists of chloramines T 50 percent to 80 percent, diatomite 11 percent to 25 percent, stearic acid 3 percent to eight percent, shellac 5 percent to 13 percent and hydroxypropyl methyl cellulose 1 percent to 4 percent. The invention also discloses the preparation method for the reagent which is as follows that three different particles are prepared with the formula according to different ratio so that the particle can release germicide at different time and disease prevention for a long time can be achieved. According to the characteristics of bagging fruit disease occurrence, the reagent provided by the invention changes traditional method for medicine application, not only reducing medicine application cost, but also improving prevention efficiency, increasing harvest level and commodity rate and reducing environmental pollution, moreover, win-win resultcan be achieved.

The present invention is an interconnection system for outdoor activity groups. The interconnection system includes a plurality of interconnection devices. The interconnection devices can be used by each member of the outdoor activity group. Each interconnection device does not need external Internet or communication The device can use the RF signal transmission module to receive and transmit data packets with local identifiers, local location information and other interconnected device location information in the public open frequency band, so that each interconnected device has the functions of active transmission and relay transmission , so that each member of the outdoor activity group can be used as a relay station to extend the communication distance of the whole group without limit, and overcome the problem of losing contact between members because they are too far away to receive signals. It is especially suitable for use in Group activities such as outdoor mountaineering, expedition or motorcade can effectively improve the safety of outdoor activities.

The invention provides a synchronization method and device for automatically identifying synchronization conflicts and solving the conflicts, which can be applied to the field of finance. The method comprises the following steps: monitoring conflict files generated in codes to be synchronized in real time, analyzing various states of the conflict files in real time in a code synchronization process, automatically matching a method model for solving a conflict problem according to the state of each conflict file, and if the conflict state is an unknown conflict state, adaptively generating a conflict solution for the conflict by using a pre-established conflict problem solving method model, adding the newly generated conflict solution into the method model, and then solving the conflict, thereby realizing a function of not manually intervening a synchronization conflict point in a synchronization process; Compared with the prior art, the method gets rid of dependence on manpower, conflicts can be found autonomously, a proper mode is selected to check and solve conflict points, source codes and target branch codes of conflict files are synchronized and recorded automatically, and high efficiency and safe control of code synchronization are ensured.

The invention provides a stretching-compression type vibration-reduction energy-consumption support structure, and belongs to the field of building structure vibration control. The stretching-compression type vibration-reduction energy-consumption support structure comprises protection and limiting baffle plates arranged on the upper and lower parts, seal plates arranged on the front and back parts, and stretching-compression plates arranged on the left and right parts, wherein multiple wave-shaped friction overlaying energy-consumption bodies are arranged in a structure enclosed by the protection and limiting baffle plates, the seal plates and the stretching-compression plates from top to bottom; the left and right sides of the wave-shaped friction overlaying energy-consumption bodies arefixedly connected with the stretching-compression plates by adopting fixed connection ends; and an energy-consumption material is arranged in the structure enclosed by the protection and limiting baffle plates, the seal plates and the stretching-compression plates. The stretching-compression type vibration-reduction energy-consumption support structure provided by the invention has the beneficialeffects of stable and uniform overall stress, stable energy-consumption system, good economic performance, capability of effectively achieving multiple energy consumption effects and improving the energy dissipation efficiency, high material utilization ratio, good energy consumption effect, and capability of effectively improving the overall structure safety performance.

The invention provides a slow-release algae-inhibiting microsphere, a preparation method and application thereof. The slow-release algae-inhibiting microspheres are prepared from the following raw materials: luteolin 1%-1.5% (w / v), olive oil 18%-20% (w / v), emulsifier 10%-12% (w / v), co-emulsifier 10%~12% (w / v), sodium alginate 1%~2.5% (w / v), chitosan 0.2%~0.3% (w / v), chloride Calcium 4%-8% (w / v), cross-linking agent 0.5%-1% (v / v). The slow-release algae-inhibiting microspheres provided by the present invention can slow down and control the release rate of luteolin, and the preparation process is simple, the cost is low, and there is no pollution to the environment. Through the sustained and slow release of luteolin, it can significantly It effectively inhibits the growth of Microcystis and at the same time effectively inhibits the release of microcystins (MCs), without the need to repeatedly add algicides, and has a long-term and stable effect on effectively inhibiting the outbreak of cyanobacteria blooms.

The invention discloses a moisture absorption hot air circular drying oven. The moisture absorption hot air circular drying oven comprises a box body, a drying chamber and a hot air circulating pipeline, wherein the drying chamber and the hot air pipeline are arranged in the box body; a gap among the box body, the drying chamber and the hot air pipeline is taken as a thermal insulation layer; the hot air circulating pipeline is connected with a top plate of the drying chamber and a bottom plate of the drying chamber; a plurality of ventilation holes are distributed in the top plate of the drying chamber and the bottom plate of the drying chamber; the lower part of the bottom plate of the drying chamber is provided with support columns which are connected with the box body; a circulating fan is arranged in the hot air circulating pipeline; a moisture absorption device is arranged in the hot air circulating pipeline; the hot air circulating pipeline is connected with an air supplementing pipe; a plurality of partition plates are arranged in the drying chamber; the inner wall of the drying chamber is provided with a heating pipe, a temperature measuring device and a safety pipe; the other end of the safety pipe is communicated with the atmospheric air; a safety valve is arranged at one end where the safety pipe is communicated with the atmospheric air; a control processing device is arranged outside the box body; the bottom of the box body is provided with pulleys. By adopting the moisture absorption hot air circular drying oven, hot air can be used circularly to the maximum extent, and the drying efficiency is increased.

The invention relates to the technical field of block chains, in particular to a financial data real-time sharing system based on a block chain, and the system comprises: a data registration node which distributes a data identifier; matching nodes which are used for displaying field values, field names, data identifiers and quotations of external primary keys; a plurality of auxiliary nodes; a resident node which synchronizes financial data, splits a data line corresponding to the data identifier into a plurality of sub-data, reserves one sub-data, and sends the remaining sub-data to the plurality of auxiliary nodes for storage; and a model node which receives the data processing model. The calling request is sent to a matching node, the matching node sends a data identifier and a model identifier to a target resident node, the target resident node and a plurality of auxiliary nodes construct multi-party calculation, a result of a data processing model is obtained, and a bill is generated. The system has the substantive effects that the security of the financial data is improved, and the resident node is arranged, so that the change of the financial data can be conveniently and quickly synchronized to the resident node, and the real-time sharing of the financial data is realized.

The invention discloses an application of depolymerized holothuria glycosaminoglcan in preparing a medicine for preventing and controlling thrombotic diseases. The weight-average molecular weight of the depolymerized holothuria glycosaminoglcan is 45,500-49,000Da. Animal experiments prove that a certain dosage of depolymerized holothuria glycosaminoglcan with weight-average molecular weight of 45,500-49,000Da has obvious anti-coagulation activity through hypodermic injection (3-100mg / kg). Experimental results indicate that the anti-coagulation activity of the depolymerized holothuria glycosaminoglcan is dosage-dependent; compared with heparin and low-molecular heparin, the blood coagulation effect is slowly improved along with the increase of dosage. The depolymerized holothuria glycosaminoglcan can be safely and effectively used for preventing and controlling thrombotic diseases, including the prevention and control of deep venous thrombosis and thrombophilia; the product is suitable for pregnant women suffering venous blood embolism; the depolymerized holothuria glycosaminoglcan also can be used for preventing the blood clot formation and the like in hemodialysis.