68results about How to "Reduce the risk of impact" patented technology

The invention relates to an AUV rapid distributing and releasing recovering device under high sea conditions. The device comprises a V-shaped recovering box, an AUV guiding assembly, a sling assembly,and a stopping net assembly, wherein the V-shaped recovering box is used for storing an AUV; the AUV guiding assembly is mounted at the front portion of the V-shaped recovering box and used for achieving guiding of the near AUV; the sling assembly comprises a drum driving motor fixed at the bottom of an unmanned ship, a sling retracting and deploying drum and V-shaped frame slings correspondinglymounted at the four corners of the V-shaped recovering box, and the V-shaped frame slings control the drum driving motor to achieve releasing and retracting storing of the V-shaped frame slings through a driving motor controller instruction; and the stopping net assembly is mounted among the four V-shaped frame slings and used for achieving protecting stopping of the side surface and the back surface, and the fact that the AUV slides out of the V-shaped recovering box is avoided. Compared with the prior art, the AUV rapid distributing and releasing recovering device has the advantages that the recovery area is expanded, the requirement of high-precision docking is reduced, rapid deploying and retracting recovery is achieved, collision is prevented, and the safety protection is achieved.

The invention discloses a TTE network transmission delay test system. The system comprises a to-be-tested TTE network, test execution equipment and test management equipment; the test management equipment is used for responding to a user test operation and sending a time delay test instruction to the test execution equipment; and the test execution equipment is used for acquiring sending signal information and receiving signal information in the TTE network to be tested in response to the time delay test instruction, and determining the transmission time delay of the TTE network according to the sending signal information and the receiving signal information. Visibly, the transmission delay of the TTE network is analyzed in a mode of combining board card trigger acquisition and software data analysis in the test execution equipment, that is, time data acquisition and analysis are performed on the TTE network at a board card level, the risk of influencing the data in the TTE network at a protocol layer is reduced, and the use of third-party test equipment is avoided, therefore, the complexity of TTE network testing is reduced, and the risk that TTE network transmission information is tampered and the correctness of transmission data is affected is also reduced.

The invention discloses a pressure relief method for fully-mechanized top-coal caving mining of steeply inclined coal seams. The pressure relief method for the fully-mechanized top-coal caving miningof the steeply inclined coal seams comprises the steps that the combination of roadway pressure relief blasting, deep hole blasting pressure relief of a pressure relief roadway and ultra-long hole blasting pressure relief of a coal body in a floor concentrated roadway is adopted, wherein the roadway pressure relief blasting performs blasting pressure relief on the lower slope angle of the side, close to the coal body of a working face, of a mining roadway, and then performs monitoring; if the index is within a normal range, the pressure relief work is completed; if the index is beyond the normal range, according to the actual situation of the working face, deep hole blasting pressure relief of the pressure relief roadway and ultra-long hole blasting pressure relief of the coal body in thefloor concentrated roadway are carried out; according to the deep hole blasting of the pressure relief roadway, blasting pressure relief is further carried out on a coal body stress concentration areaby forming coal body deep hole blasting holes in a bottom coal pressure relief roadway to fully crush the coal body; and according to the ultra-long hole blasting pressure relief of the coal body inthe floor concentrated roadway, coal body ultra-long blasting holes are formed in a bottom plate and a bottom coal area in the concentrated roadway through an original bottom plate concentrated roadway so as to reduce stress concentration and impact hazard degree of bottom coal.

The invention provides a method for isolated culture of mesenchymal stem cells from fetal membranes. The method comprises the following steps: tissue separation, cleaning, culture, passage and cryopreservation. The invention provides a method for separating the mesenchymal stem cells, which are derived from an amniotic membrane, chorion laeve and decidua parietalis, from the fetal membranes. The conventional material positions are changed, and the separation process is simplified. The mesenchymal stem cells are extracted with a tissue block wall adherence method, the extraction method is simple and fast, introduction of an exogenous enzyme is not needed, so that risks of an exogenous substance for affecting quality of a cell preparation are reduced, and the prepared cells have high activity and purity and better proliferation capacity.

The invention relates to herbicide composition containing effective ingredients including metamifop and cafenstrole in the weight ratio being (15:1)-(1:15) and used for a rice paddy field. The herbicide composition acts on annual and perennial grassy weeds including barnyard grass, crab grass, eleusine indica or reed in the rice paddy field, on annual and perennial cyperaceae weeds including Scirpus juncoides Roxb, Eleocharis yokoscensis or Cyperus rotundus in the rice paddy field and also on annual and perennial broadleaf weeds including false loosestrife, sagittaria pusilla, Rotala indica or monochoria vaginalis in the rice paddy field. The herbicide composition has a remarkable synergistic effect, the control effect of the composition is improved to a certain degree while compared with that of a single agent, the use dosage of pesticides is reduced, and the pesticide use cost and the impact risk of the pesticides to the ecological environment are reduced.

The invention relates to a docking device, which is used in a waste collection and treatment system, and used for transporting waste generated in a medical process and collected by a waste collection device in the system. The docking device includes: a mating portion for mating with a mating bracket of the waste collection device; wherein, the mating portion includes a mating plate, and the mating plate includes two floating ferrule guiding bayonets for engaging, and a docking end joint can pass through the guiding bayonet. Wherein the docking device further includes a baffle plate, the baffle plate is in a first position when the waste collection device is not connected, and the two docking end joints are blocked; after accessing the waste collection device, the baffle plate is in a second position, and the two docking end joints are exposed to contact the floating ferrule of the waste collection device to form docking. The docking device of the embodiment of the present invention can be more easily docked with the waste collection device by an inclined surface of the mating plate.

The invention provides an air purifying device which comprises a shell body, a shell body built-in air flue, an air purifier and a power unit. One end of the shell body is provided with an air inlet,and the other end of the shell body is provided with an air outlet. The air purifier comprises an adsorbing and filtering purifying mechanism, an ultraviolet sterilizing purifying mechanism, a photocatalytic decomposition purifying mechanism, a sterilizing and disinfecting purifying mechanism and a circulating fan which are sequentially arranged in the air flue. The indoor air quality is improved,the impact risk of air pollution on human bodies is reduced, the healthy breathing can be easily realized, and the health level and life quality of people are improved.

The invention relates to butting equipment for a waste collection and treatment system. The butting equipment is used for conveying the wastes collected by waste collection equipment in the waste collection and treatment system in a medical process. The butting equipment comprises an adapting head part, at least one actuation assembly and two butting end joints, wherein the adapting head part is used for being adapted with an adapting bracket of the waste collection equipment; each actuation assembly is arranged in the adapting head part and can freely extended and retracted in a special direction; the two adapting end joints are connected with the actuation assembly; after the adapting head part is aligned with the adapting bracket, the actuation assembly acts, so that each butting end joint is in contact with a floating sleeve head of the waste collection equipment to form butting; the adapting head part comprises an adapting plate, the adapting plate comprises two guide clamp portsfor clamping of the floating sleeve head, and each adapting end joint can penetrate through the corresponding guide clamp port. The butting equipment of the embodiment of the invention has the advantage that the butting equipment can be more easily butted with the waste collection equipment through the slope of the adapting plate.

The invention discloses an unmanned aerial vehicle system for fan blade detection. The unmanned aerial vehicle system comprises a control unit, a communication unit, a first unmanned aerial vehicle and a second unmanned aerial vehicle, wherein the first unmanned aerial vehicle is used for carrying out thermal imaging image sampling on a detected fan blade; the second unmanned aerial vehicle is used for carrying out high-definition image sampling on the detected fan blade. The invention provides the unmanned aerial vehicle (UAV) system and method for fan blade detection, which can improve the detection efficiency and the recognition accuracy, reduce the risk of collision between the UAV and the fan blade, and prolong the service life of the UAV and the fan blade.