575results about How to "Guaranteed long-term stability" patented technology

A method of repairing mine ecological environment comprises the treatment of mine environment contamination, wherein the tailings, the barren rock, the smelting slag, the waste water from ore cleaning, the waste water from smelting, the acid mine drainage and the ore yard leachwater which are generated from mine development are collected into the tailings storage, at the same time, sludge and organic matter capable of being degradated by microbiology are added therein, and then the tailings storage is given an anaerobic environment artificially, so that, under the action of microbiology and sulfate reducing bacteria, sulfur ion is generated and the pH value of the tailings storage is increased, a plurality of heavy metal ions are cured and settled by sulfur ion to avoid migration, a biomembrane layer-sulfate reducing bacteria reducing-induction biomineralization precipitation composite geochemical barrier is generated in the tailings storage. The repairing of mine ecological environment is realized by the treatment of mine environment contamination. The present invention can be used for tailings storage pollution prevention in tour, and can be used for closing the repairing of mine ecological environment, or can be used for designing new tailings storage by using the technology of the present invention.

The present invention relates to ecological side slope protecting technology. The ecological side slope protecting method includes the following steps: cleaning up side slope, installing anchor rod, setting net of composite material, jetting special base material, jetting plant seed, covering with non-woven fabric and post-maintenance. The special base material consists of bacterial slag, turf, crop straw, farm manure and composite additive, and is mixed with soil in the ratio of 1 to 2-3 before being jetted to constitute the nutritious bed for slope plant to grow. The plant seed is seed of leguminosae plant or wild lianoid plant. The method of the present invention is suitable for recovering vegetation of various side slopes.

The invention relates to a high-precision time-delay precompensation optical fiber timing method which comprises the following steps of: firstly, extracting a PPS (Pulse Per Second) signal from a received line code stream and outputting by a terminal station; circularly returning the received line code stream to a center station; recovering the PPS signal from the circularly returned line code stream by the center station; measuring a time interval between a sending PPS and a recovered PPS; subtracting a bidirectional time delay of terminal equipment to acquire an optical fiber link bidirectional transmission time delay; calculating a one-way time delay from the center station to the terminal station; and adding a one-way time delay value of the terminal equipment to acquire a precompensation time delay. The precompensation value is used as a precompensation time delay of the next PPS and coded before the next PPS is sent to the terminal station. The invention has the advantages of uniform reference and high stability and is easy to simultaneously ensure the long-term stability and the short-term stability of time transmission.

The invention discloses a flexible probe electrode used for recording an electric signal of a neural activity. The flexible probe electrode comprises a flexible substrate, electrode sites, metal wires, lead welding spots and flexible insulating layers, wherein both the electrode sites and the metal wire are arranged on the flexible substrate; each electrode site is connected to a corresponding lead welding spot through led metal wires; and the flexible insulating layers are arranged on the surfaces of the metal wires instead of being arranged at the electrode sites and the metal welding spots. The invention also discloses an implanting tool for inserting the flexible probe electrode into tissues. Through the implanting tool, the electrode has a high flexibility and biocompatibility and the tissue damage is reduced, so that the long-term working stability of the electrode is ensured, the problem that the own hardness of the flexible electrode cannot satisfy an inserted hardness is solved and the defects that the conventional probe electrodes can damage the tissues easily and the electric signal is instable for the long-term recording of the electrode are overcome.

The invention discloses a full-anchor partition pressure transferring grouting anchor rod and an application method thereof. The anchor rod comprises a hollow anchor rod body, an anchor rod tray and a lockset nut. The hollow anchor rod body is cut into long section bodies, and rod body pressure transferring devices which are connected together through hollow connecting bolts, wherein one hollow connecting bolt is arranged between every two adjacent long section bodies. Each rod body pressure transferring device comprises a sleeve, wherein a pressure transferring grouting pipe section is sleeved with the sleeve, a flat type pressure sensor and a compression spring abutting against a blocking nut are arranged inside the sleeve in sequence, and all flat type pressure sensors are connected with a partition grouting indicator through wires. According to the full-anchor partition pressure transferring grouting anchor rod, automatic multi-point pressure transferring can be carried out on a plurality of fracture partitions of a deep surrounding rock, the non-coordination deformation breakdown pressure inside the surrounding rock can be effectively released, the anchor rod body can be prevented from being pulled broken and being out of operation, the optimal grouting time points of surrounding rock fracture partitions can be accurately grasped, independent grouting reinforcement is carried out on all fracture partitions timely in a targeted mode, and the stability of the deep roadway partition fracture surrounding rock is effectively improved.

The invention relates to a double anchoring section prestressed anchoring system with three-layer protection and anchoring method thereof. The anchoring system is composed of an inner anchoring section, a free section, an outer anchoring section and an anchor section. Outer layer binder, corrugated pipe and inner layer binder form three-layer protection for the inner and outer anchoring sections of the anchoring system, the outer layer binder, the corrugated pipe, a sleeve and the inner binder form four-layer protection for the free section, thus greatly improving resistance to corrosion of anchoring structure. Double anchoring sections form an anchoring force holding end and a prestress holding end. Compared with common single anchoring section anchoring method, the invention has the advantages that the outer anchoring section in specific design can effectively inhibit influence of creep, weathering, corrosion, blasting and earthquake of mantle rock soil body on anchoring system and the aim of avoiding or reducing prestress loss can be achieved. The invention has simple implementation and strong operability, procedure change is less compared with the existing anchoring method, and the invention has obvious advantage compared with the permanent anchoring system and can be applicable to reinforcement of geotechnical engineering such as side slope and foundation pit.

The invention discloses a metal support half-cell of a solid oxide fuel cell and a preparation method thereof. The half-cell comprises a porous metal supporting layer thick membrane, a porous cermet gradient transition layer film, a porous anode layer and a compact electrolyte layer film from down to up. The porous gradient transition layer composed of a mixed oxide and a oxide with a fluorite structuring can avoid the direct contact of the porous metal supporting layer and the porous anode layer, and the mutual diffusion of Fe/Cr elements in the metal supporting layer and Ni element in the porous anode layer can be reduced under high temperature sintering condition. The mixed oxide is reduced to an alloy under the work condition of the cell; a high anode active material is formed at a side interface of the anode, a high conductivity composite material which takes the alloy as a main phase is formed on the side interface of a metal support body, so that higher conductivity is presented, ohmic resistance is reduced, electrocatalytic activity is not reduced, long-term stability for operation of the cell can be ensured, and good combination of the porous metal supporting layer and the porous anode layer can be simultaneously realized.

A method for testing time delay of remote frame can provide high accurate clock system to ensure high accurate clock and common time basis required by service time delay test of trans-regional communication network and to ensure long period of stability for clock system on each individual test instrument as well as to ensure clock accuracy required by user and used between multi-set test instrument when test of service time delay on tested communication network or tested communication device is carried out.

The invention relates to a pressure sensor chip based on silicon direction bonding and silicon on insulator and a manufacturing method thereof, and belongs to the field of sensor chips. The invention is characterized in that a shallow slot and a gas port on a supporting silicon wafer are formed through anisotropy corrosion, and appropriate shallow slot depth obtained by controlling the corrosion time can realize over pressure protection of parts. A silicon direct bonding technology bonds the supporting wafer and a reversed SOI wafer, realizes a beam-membrane structure on the SOI after lapping and polishing to improve the sensitivity and linearity of the parts; manufactures force sensing resistance elements on the processed beam; adopts the oxidation buried layer of the SOI to solve insulation and isolation of the sensing elements and elastic elements; and improves the long-termed reliability and adaptability under high temperature of the parts. The SOP high-sensitivity pressure sensor chip based on the bonding technology has the advantages of controllable process, excellent repeatability and high finished product rate.

The invention relates to full-frequency sound absorbing cotton which is provided with a double-layer structure or three-layer structure. The full-frequency sound absorbing cotton of the double-layer structure is composed of a melt-blow high polymer fiber layer and a varicosity polytetrafluoroethylene layer. The full-frequency sound absorbing cotton of the three-layer structure is composed of a melt-blow high polymer fiber layer with double faces compounded with the varicosity polytetrafluoroethylene layer or the varicosity polytetrafluoroethylene layer with double faces compounded with the melt-blow high polymer fiber layer. A high-performance composite micropore thin layer new material has better full-frequency sound absorbing capacity; is environment-friendly, non-toxic and free of peculiar smell, volatile gas, pollution or carcinogenic substances; and is free of stimulation caused by operating similar glass fiber on the skin, can be machined in punching mode, and does not generate dust or scraps and the like. The sound absorbing cotton made of the two materials of the melt-blow high polymer fiber layer and the varicosity polytetrafluoroethylene layer has good thermal resistance, and a sound absorbing effect cannot be affected by high-humidity climate and water.

The invention relates to an extremely-high geostress soft rock large-deformation tunnel multistage pressure-yielding and pressure-resisting support structure and a construction method thereof. The construction method comprises the following steps: excavating a tunnel with a nearly circular section, then driving long anchor cables and short anchor rods into surrounding rock, erecting ring-shaped profile steel frames at tail ends of the long anchor cables and the short anchor rods and spraying concrete, additionally driving reinforcement lengthened or encrypted anchor cables into the surroundingrock, then erecting steel frames and spraying concrete again to form multilayer extension support; constructing a reinforced concrete lining structure on the inner side of the multilayer extension support, and forming the multistage pressure-yielding and pressure-resisting support structure through the long anchor cables, the short anchor rods, multilayer support and the reinforced concrete lining structure. According to the extremely-high geostress soft rock large-deformation tunnel multistage pressure-yielding and pressure-resisting support structure, the pressure is actively released by reserved deformation; the long anchor cables and the short anchor rods are used for anchoring in time with high pre-tightening force, enabling the pressure of the surface surrounding rock to be transferred to the deep part of the surrounding rock and expanding the surrounding rock bearing ring; the pressure-yielding support structure is used for providing high resistance and continuous deformation capacity; the reinforced concrete structure is used for resisting rheomorphism; the deformation of the surrounding rock can be effectively controlled; long-term stability of the structure can be ensured.

The invention relates to a flexible extendable nerve electrode and a preparation method and application thereof. The flexible extendable nerve electrode comprises a flexible polymer material, a liquid metal electrode embedded in the flexible polymer material and an insulation material; the liquid metal electrode includes a lead, an electrode site and an external interface end, and the electrode site and the external interface end are respectively located at two ends of the lad; the insulation material covers the lead and the external interface end of the liquid metal electrode. The flexible extendable nerve electrode has good biocompatibility, high conductivity and excellent tensile properties, and these properties can be long-term and stable; the preparation method has the advantages of high machining accuracy, strong design flexibility, simple process, low cost and easy mass production and optimized design of nerve electrodes.

A film solar cell comprises top and bottom transparent baseboards. It is prepared by arranging conduction electrode and catalyst layer in interval on one transparent conduction film of substrate as well as arranging conduction electrode and nanomutihole semiconductor material block in interval on another one, soaking dyestuff in said nanomaterial, overlapping two transparent baseboards and sealing periphery of them to form cavity with electrolyte. The internal parallel electrode is also prepared for obtaining output current of solar cell.

The invention discloses a marine gas hydrate and mortar replacement exploitation method and device. According to the exploitation method, the sand blocking accuracy of a mechanical screen pipe is properly lowered to enable stratum mud and sand fine particles to flow into a shaft production pipe column and be discharged under the controllable condition, in the meantime, coarse-particle mortar is injected into a hydrate reservoir continuously, and through matching of a hydrate reservoir sand outlet management technology and mortar injection technology, replacement of the coarse-particle mortar and the stratum fine particles as well as the coarse-particle mortar and a hydrate space is achieved. The exploitation device comprises a production sleeve pipe, a production oil pipe, a shaft water injection pipe and a mortar back-injection pipe, the lower end of the production sleeve pipe is connected with the mechanical screen pipe, and the upper end and the lower end in the mechanical screen pipe are further provided with an upper mechanical packer and a lower mechanical packer correspondingly. The inlet end of the production oil pipe is provided with a gas separating device, and the position, above the upper mechanical packer, of the shaft water injection pipe communicates with the production oil pipe. The mortar back-injection pipe penetrates through the upper mechanical packer and the lower mechanical packer, extends to the bottom border of the production layer section of the hydrate reservoir and is connected with a gravel filling tool. Through the method and the device, the purpose of continuous and efficient production is achieved.

The invention provides an addition-type silicon rubber primer and a preparation method thereof. The primer includes the following components, by weight, 100 parts of a solvent, 0.5-10 parts of an organic silicon-acrylic oligomer and 10-30 parts of silica sol. The organic silicon-acrylic acid oligomer is formed by polymerizing a silane coupling agent containing C=C groups and an acrylic monomer. The silica sol is prepared through acidic hydrolysis to silicate ester, a silane coupling agent containing C=C groups, and hydrogen-containing siloxane. Through combination of the silica sol containing an additional reaction functional group and the functionalized organic silicon-acrylic oligomer, the primer promotes chemical combination between addition-type silicon rubber and surfaces of materials, thereby achieving good adhesive effect. The primer has excellent application prospect in the field of heat vulcanization adhesion of the addition-type silicon rubber.

The invention discloses a device and a method for compensating for detection polarization fluctuation of rotation angles of linearly polarized light in an online manner. The device comprises an optical module and a measurement control module. The optical module comprises a reference light path and a signal detection light path and mainly comprises a laser device, a polarizer, a liquid crystal variable-phase retarder, a photoelastic modulator, a 1/4 wave plate, a to-be-measured atom gas chamber sample, polarization beam splitting prisms and the like; the measurement control module comprises balance differential detectors, a liquid crystal driver, a photoelastic controller, a phase lock amplifier and a data acquiring and processing unit. The device and the method have the advantages that error sources of various devices do not need to be differentiated for optical detection systems with the multiple complicated polarization devices, only characteristics of input ends and 'black box' type processing modes for signals of output ends need to be considered, accordingly, compensation and correction for eliminating detection random errors of the rotation angles of the light in real time can be implemented on the basis of photoelastic modulation, and the signals can be stably detected in a high-precision manner for a long time.

The invention discloses a method for filling mined coal to recover residual coal pillar and controlling the stability of a waterproof key layer. Glue filling and pumping devices are arranged in a tunnel formed by a coal-mined chamber, goafs on the two sides are filled with glue filling materials with aeolian sand as the main part, and the residual coal pillar is recovered after a to-be-filled bodyreaches certain bearing capacity; after the coal pillar is recovered, the goafs are filled with aeolian sand secondarily through a high-speed power throwing machine and a bulldozer. By means of the method, the earth surface natural aeolian sand material can be used to the maximum extent, the overlying waterproof key layer is effectively controlled, and a new technological method is provided for recovering the residual coal pillar in the ecological weak mine area in western China and protecting the ecological environment.

The invention discloses a water-rich fault fracture zone collapsed roadway repairing method based on angle-variable umbrella-shaped advancing grouting. The method includes the following steps of firstly, forming water detection and water guiding drilled holes; secondly, conducting grouting; thirdly, forming water blocking and reinforcing sealing drilled holes row after row in advance; fourthly, sequentially conducting drilled hole grouting row after row; fifthly, arranging a pipe-shed support in advance; sixthly, withdrawing a broken support, conducting excavation on caved gangue; seventhly, temporarily supporting a deformation area through U-shaped steel; eighthly, conducting reinforced concrete lining pouring construction, and embedding a grouting pipe; ninthly, additionally arranging hole patching grouting rows, and sequentially conducting advancing supporting, temporary supporting and one-time supporting till passing through a collapsed area; tenthly, conducting high-pressure grouting filling reinforcing behind the wall through the embedded grouting pipe. The method is an effective method for reinforcing collapsed roadway surrounding rock through grouting and water blocking, and a system control and continuing method is adopted based on the method. On the basis, due to the surrounding rock control engineering practices, on-site roadway repairing blindness can be reduced, and long-term stability of the roadway can be ensured.