115results about How to "Efficient and stable" patented technology

The bipolar electrochemical battery of the invention comprises:a stack of at least two electrochemical cells electrically arranged in series with the positive face of each cell contacting the negative face of an adjacent cell, wherein each of the cells comprises(a) a negative electrode;(b) a positive electrode;(c) a separator between the electrodes, wherein the separator includes an electrolyte;(d) a first electrically conductive lamination comprising a first inner metal layer and a first polymeric outer layer, said first polymeric outer layer having at least one perforation therein to expose the first inner metal layer, said first electrically conductive lamination being in electrical contact with the outer face of the negative electrode; and(e) a second electrically conductive lamination comprising a second inner metal layer and a second polymeric outer layer, said second polymeric outer layer having at least one perforation therein to expose the second inner metal layer, said second electrically conductive lamination being in electrical contact with the outer face of the positive electrode; wherein the first and second laminations are sealed peripherally to each other to form an enclosure including the electrodes, the separator and the electrolyte.

Disclosed are a vehicle wireless sensor network system and an operating method thereof. The vehicle wireless sensor network system according to an embodiment of the present invention includes at least one vehicle wireless sensor node that is mounted in a vehicle and detects information about the vehicle in an arbitrary position of the vehicle, and a vehicle base station that collects information from the vehicle wireless sensor node and an electronic control unit (ECU) of the vehicle, generates an information collection command based on the information collected from the ECU of the vehicle to transmit the generated information collection command to the vehicle wireless sensor node to perform the generated information collection command, and selectively transmits sensor information collected from the vehicle wireless sensor node to the ECU of the vehicle.

The invention discloses a method for preparing intelligent target medicine carrying composite micelles. The surfaces of the composite micelles are modified by target ligands and pH / temperature synergy sensitive polymers at the same time; and reversible transformation between the shielding state of the target ligands during blood circulation (the temperature is 37 DEG C, and the pH value is 7.4) and the deshielding state of the target ligands in tumor tissues (the thermal therapy temperature ranges from 40 DEG C to 44 DEG C, and the pH value ranges from 6.5 to 6.8) is achieved. The pH and temperature dual sensitivities used in the method have the synergy; and the method is more suitable for the complex physiological environment of the human body. The method has the beneficial effects that targeting of the target ligands and the sensitive phase transformation characters of the pH / temperature synergy sensitive polymers are sufficiently used; and a target reversible shielding nanometer drug delivery system with the tumor targeted specificity and the blood circulation stability is built.

A strengthening and rehabilitation exercise apparatus includes a hip joint strengthening and rehabilitation exercise apparatus for strengthening a pelvis, an abdominal region, and a waist through exercise of a lower body symmetrically interlocking with a weight while fixing an upper body in a prone position, a hip joint strengthening and rehabilitation exercise apparatus for strengthening the pelvis, the abdominal region, and the waist through exercise of the upper body interlocking with the weight while fixing the lower body in a sitting position, a waist joint strengthening and rehabilitation exercise apparatus for strengthening the waist and the abdominal region through exercise of the upper body interlocking with the weight while fixing legs and the pelvis in a straight line in a supine position, and a stretching apparatus for performing muscle exercise of a back and shoulders using hands and arms in the sitting position.

The invention belongs to the field of energy, and particularly relates to a preparation method for a single-walled carbon nanotube (SWCNT) hollow ball oxygen reduction catalyst, and an application of the SWCNT hollow ball oxygen reduction catalyst. The SWCNT hollow ball oxygen reduction catalyst is an SWCNT hollow ball oxygen reduction catalyst with co-doping of a transition metal and nitrogen, and the preparation method comprises the following steps: monodispersed oxidized SWCNTs are firstly self-assembled into SWCNT balls in the shape of hollow balls through the hard template method; the SWCNT hollow balls and a transition metal N4 cyclic compound are then sufficiently mixed; and calcination is then carried out in an ammonia or inert atmosphere to achieve the co-doping of the transition metal and the nitrogen, so that the SWCNT hollow ball oxygen reduction catalyst is obtained. The catalyst achieves efficient oxygen reduction catalysis performance, and can be used as an air electrode catalyst for hydrogen-oxygen fuel cells, zinc-air fuel cells, magnesium-air fuel cells, and aluminum-air fuel cells.

A method for controlling a temperature of a terminal and a terminal supporting the same are provided. A terminal supporting temperature control includes a temperature sensor for detecting a temperature of the terminal, and a controller for performing at least one of a first throttle procedure including driving the controller with a first preset driving frequency when the temperature of the terminal detected by the temperature sensor is a first preset temperature, and driving the controller with a second driving frequency higher than the first driving frequency when the temperature of the terminal is reduced to a second preset temperature lower than the first preset temperature, and a second throttle procedure including driving the controller with the first preset driving frequency for a first time, and driving the controller with the second driving frequency higher than the first driving frequency for a second time after the first time elapses.

A medical laser apparatus for performing treatment by irradiating an affected part with a laser beam comprises: a fiber laser source with variable output power, which emits an infrared fundamental laser beam; a wavelength converting element which wavelength-converts the fundamental beam to a visible second harmonic laser beam and is placed on an optical axis of the fundamental beam; a first incident angle changing unit which changes an incident angle of the fundamental beam to the wavelength converting element; an optical axis deviation correcting unit which corrects deviation of an optical axis of the second harmonic beam caused by a change of the incident angle of the fundamental beam to the wavelength converting element; and a controller which controls the first changing unit and the correcting unit based on a change in power of the fundamental beam.

The invention provides a heterogeneity testing device and method based on a DHR architecture mimicry defense platform. The device part comprises a mimicry scheduler, a heterogeneity executor set and aheterogeneity recognizer. The device disclosed by the invention is based on the existing test method for verifying the characteristics of the mimicry system; verification and judgment for the types of the heterogeneous executors are added, the stability, safety and performance rationality of the heterogeneous executors can be verified more efficiently, and a detailed test report is automaticallygenerated, so that the requirement for evaluating the heterogeneity of the mimicry safety information system is met.

The invention provides a full-water-electrolysis catalyst, and a preparation method and an application thereof. The preparation method of the catalyst comprises the following steps: 1) carrying out aheating reaction on oxidized three-dimensional foamed nickel and a first part of a phosphorus source according to a mass ratio of 1:(3-20) to generate a Ni2P film on the three-dimensional foamed nickel carrier; and 2) mixing a product obtained after the reaction in step 1), a cobalt salt and a nickel salt having a molar ratio of (1-3):1, an alkali source and water, carrying out hydrothermal treatment on the obtained mixture, washing and drying the hydrothermal treatment product to obtain a product A, and carrying out a heating reaction on the product A and a second part of the phosphorus source according to a mass ratio of 1:(3-20) to realize secondary phosphorization in order to obtain the full-water-electrolysis catalyst. The catalyst can be used for electrolyzing water. The preparationmethod improves the stability and the activity of the catalyst through Ni2P with a strong binding force with a carrier, in situ growing on the foamed nickel structure, by primary phosphorization and forming a defect interface by loading. The catalyst has a high stability and a high activity when used for electrolyzing water.

The invention discloses a method for preparing a renewable magnesium-containing heavy metal adsorbent and an adsorbent prepared therethrough. The method comprises the following steps: preprocessing a catalysis carrier, impregnating the catalysis carrier in s magnesium source solution, standing the impregnated and adsorbed catalysis carrier in ammonia water or a sodium hydroxide solution to precipitate magnesium ions, cleaning the obtained aged magnesium-containing active carbon until the solution is clear, drying the cleaned magnesium-containing active carbon to obtain the high-efficiency magnesium-containing heavy metal adsorbent. An active component Mg(OH)2 and the carrier active carbon are mutually bonded to form the heavy metal adsorbent having specific properties. The magnesium-based material is loaded to the carrier having rich pore structures and a large specific surface area by using the high activity and the high adsorbing capacity, so the disadvantages of high treatment cost and difficult recovery of single adsorbent are overcome, and a proper desorbent (complexing agent) is used to desorb and enrich heavy metals in order to regenerate the supported adsorbent.

The invention discloses a preparation method of an efficient bimetallic nickel-molybdenum selenide electrocatalytic material. The preparation method comprises the following steps: preparing a nickel-molybdenum mixed solution according to a molar ratio of nickel to molybdenum of (1-3):(1-3); transferring the nickel-molybdenum mixed solution into a reaction container containing foamed nickel, carrying out solvent heat treatment, taking out the foamed nickel, and carrying out vacuum drying to obtain an in-situ grown nanowire precursor; and covering the nanowire precursor with selenium powder, carrying out primary calcination in an argon-hydrogen mixed atmosphere at 300-500 DEG C, cooling the calcined product, and carrying out secondary calcination in an inert atmosphere at 300-500 DEG C to obtain the nickel-molybdenum bimetallic selenide material NiSe-MoSe2 / NF after phase change. The bimetal nickel molybdenum selenide electro-catalytic material prepared by the invention is of a nanowire structure obtained by in-situ growth, can be directly used as a working electrode and has a large specific surface area; the catalyst has extremely low overpotential for hydrogen production by electrocatalytic water reduction and oxygen production by oxidation, and has good stability.

The invention discloses a compound containing a pyrazole structural unit, a preparation method and an application. A structural general formula of the compound containing the spirofluorene structural unit is shown as a formula I. The nuclear magnetic detection of the compound is correct, the compound can be used as an OLED monomer material, and has important application value. The compound has the main advantages that 1) the synthesis is relatively simple; 2) the compound has high efficiency stability and good glass transition temperature; and 3)the device produced by the OLED material has the advantages of low original voltage, high luminescence efficiency and good chromaticity coordinate.

The invention belongs to the technical field of material science and engineering energy device optimization, and discloses a blade coating structure for a modified efficient perovskite solar cell, anda preparation method. NiOx is used for replacing PDEOT:PSS (Poly(3,4-ethylene dioxythiophene): poly(styrenesulfonate)) to carry out the interface optimization of the solar cell device, and is subjected to spin coating to conductive glass; dimethyl sulfoxide and dimethyl formamide are added into the precursor solution of perovskite, the ratio of DMSO (dimethyl sulfoxide) to DMF (Dimethyl Formamide) is regulated and controlled, and perovskite solution solvent is optimized; the solar cell device is coated with the perovskite solution by a blade coating method at an environment temperature; and afullerene derivative BCPM ([6,6]-phenyl-C61-butyric acid methyl ester) BCP (block copolymer) is coated n sequence, a sliver electrode is plated to prepare the PSC (Perovskite Solar Cell). Through themodification of solvent in the perovskite solvent and the change of a hole transport layer interface material, the efficiency of the perovskite solar cell is theoretically improved. Meanwhile, the preparation method adopts scraper coating, so that preparation speed and operation convenience are greatly improved.

The invention discloses a self-suspending artificial heart. A rotor rotates in a pump body, so fluid is boosted to flow outside along the circumferential direction. The self-suspending artificial heart is characterized in that: the rotor consists of blades of even number; the blades are symmetrically distributed in an axial direction; the blades are connected and fixed by connecting rods; each blade has an approximately cylindrical shape; each blade comprises a flow-receiving surface and a back surface in the flow direction of a medium; and under the condition that the included angles between the upper and lower end surfaces of the rotor and the rotary horizontal plane are more than 0 degree and the condition that the included angle, namely a lower bottom angle, between the lower end surface and the rotary horizontal plane is more than or equal to 0 degree, the clearances between the upper and lower end surfaces of the rotor and the rotor of the pump body decrease progressively from the flow-receiving surface to the back surface. The self-suspending artificial heart has extremely high self-balance and self-adjustment characteristics, can effectively reduce damages to the blood and the formation of thromboses in the artificial heart, strengthen compatibility with the blood, reduce the manufacturing cost, improve the balance of the action forces applied by the blood in the artificial heart onto the rotor in different directions and improve the stability and safety of the rotor in operation.

The invention provides a vulnerability attack detection system and method based on a mimicry defense mechanism, and a medium, and the system comprises an attack detection module which receives data transmitted by external equipment, carries out the temporary storage and transfer of the external data, and forwards the received external data to a mimicry defense module; a mimicry defense module which is used for carrying out input proxy distribution, redundant heterogeneous judgment and external response output on the received external data according to a mimicry defense mechanism, and returninga judgment result to the attack detection module; and a vulnerability judgment module which is used for carrying out information extraction on the detected attack behaviors, obtaining attack source feature information, carrying out attack tracing, establishing a vulnerability detection information base, matching the attack source feature information and carrying out real-time monitoring on inputdata. According to the method, related measures can be taken for maintaining the stability and the safety of the system more efficiently in real time, and a detailed detection report is automaticallygenerated, so that the evaluation requirement of an efficient and stable vulnerability attack detection method is met.

The invention relates to a method for co-processing arsenic sulfide slag and arsenic-containing smoke in copper smelting. The method comprises the following steps that copper, zinc, iron, arsenic and like enter a solution through normal-pressure acid leaching of arsenic-containing smoke, lead is recovered from leaching slag through a lead smelting system, copper in smoke acid leaching liquid is precipitated through sulfuration of the arsenic sulfide slag, ferrous sulfate is added into the solution after copper precipitation, high-stability scorodite is obtained through reaction under the condition of oxygen pressure, the loss of valuable metal in the arsenic precipitation process is small, and the arsenic-removed solution with few impurities can be directly fed to a zinc electrodeposition process to obtain electrodeposited zinc or evaporated and crystallized to obtain a zinc sulfate product. According to the method, the valuable metal recovery rate is high, operation is easy, the problems that the arsenic sulfide slag is low in value and difficult to treat are effectively solved through arsenic sulfide slag sulfuration copper precipitation, and efficient utilization of dangerous solid waste and harmless treatment of arsenic are achieved.

The invention provides thermoplastic resin composition and a preparation method thereof. The thermoplastic resin composition is characterized by comprising thermoplastic polyamide resin and alcohol amide, wherein the alcohol amide is a vinyl alcohol allyl monomer copolymer, polyol substitute amide or a combination of the vinyl alcohol allyl monomer copolymer and the polyol substitute amide. The alcohol amide is added to the polyamide composition and has the unexpected stabilizing effect (especially the long-term effect) on thermo-oxidative aging, coolants, oil, road salts and even light and weather.

The invention relates to a self-adjusting rotor used for conveying blood or conveying shear sensitive fluid. The rotor rotates in a pump body so that the pressure of the fluid is increased and the fluid flows out along the circumferential direction relative to the flowing direction of a medium, the flowing direction comprises an incident flow face (3) and a back flow face (4), and an upper end face and a lower end face of the rotor are an upper oblique plane and a lower oblique plane; if the rotor is cut along a central axis, an included angle formed by an intersecting line of the upper oblique plane and a section and a rotary horizontal plane is an upper top angle beta, and the beta is more than 0 degree; an included angle formed by an intersecting line of the lower oblique plane and thesection and the rotary horizontal plane is a lower bottom angle alpha, and the alpha is more than or equal to 0 degree; the number of the rotors is even, and the rotors are symmetrically distributed along a rotating shaft; and rotor clearances are formed between the upper end face and the lower end face of the rotor and the pump body, the rotor clearances are the distances from each point on the upper end face and the lower end face to the inner surface of the corresponding pump body, and the rotor clearances from the incident flow face to the back flow face are reduced progressively. The self-adjusting rotor has extremely high self-balancing and self-adjusting properties. When the self-adjusting rotor is applied to an artificial heart, the rotor can reduce the damage to blood corpuscles,improve the compatibility with the blood, and lower the manufacturing cost.

A method for controlling a temperature of a terminal and a terminal supporting the same are provided. A terminal supporting temperature control includes a temperature sensor for detecting a temperature of the terminal, and a controller for performing at least one of a first throttle procedure including driving the controller with a first preset driving frequency when the temperature of the terminal detected by the temperature sensor is a first preset temperature, and driving the controller with a second driving frequency higher than the first driving frequency when the temperature of the terminal is reduced to a second preset temperature lower than the first preset temperature, and a second throttle procedure including driving the controller with the first preset driving frequency for a first time, and driving the controller with the second driving frequency higher than the first driving frequency for a second time after the first time elapses.

The invention discloses a self-suspending artificial heart. A rotor rotates in a pump body, so fluid is boosted to flow outside along the circumferential direction. The self-suspending artificial heart is characterized in that: the rotor consists of blades of even number; the blades are symmetrically distributed in an axial direction; the blades are connected and fixed by connecting rods; each blade has an approximately cylindrical shape; each blade comprises a flow-receiving surface and a back surface in the flow direction of a medium; and under the condition that the included angles betweenthe upper and lower end surfaces of the rotor and the rotary horizontal plane are more than 0 degree and the condition that the included angle, namely a lower bottom angle, between the lower end surface and the rotary horizontal plane is more than or equal to 0 degree, the clearances between the upper and lower end surfaces of the rotor and the rotor of the pump body decrease progressively from the flow-receiving surface to the back surface. The self-suspending artificial heart has extremely high self-balance and self-adjustment characteristics, can effectively reduce damages to the blood andthe formation of thromboses in the artificial heart, strengthen compatibility with the blood, reduce the manufacturing cost, improve the balance of the action forces applied by the blood in the artificial heart onto the rotor in different directions and improve the stability and safety of the rotor in operation.

The invention discloses normal-temperature cured water-based polyurethane and a preparation method and application thereof. The polyurethane is prepared from polyether polyol, fluoride glycol, polyisocyanate, anti-mildew bactericide dimethyl fumarate, diluent, molecular weight modifier, fluorine-containing hydroxyl acrylate monomer, methacrylic acid-2-hydroxypropyl ester, chain extender, neutralizer and coupling agent. By means of the addition polymerization mode of unsaturated double bond containing polyether polyol, polyalkoxy silicon base and fluorine-containing hydroxyl acrylate are chemically bonded into polyurethane chains, novel water-soluble polyurethane resin of a polyalkoxy silicon base fluoro modified acrylic resin-polyurethane interpenetrating polymer networks (IPN) structure is synthesized and is made to have the common advantages of water-based polyurethane paint and polyacrylate emulsion, and the polyurethane is cured at normal temperature, has oil resistance and stain resistance, is suitable for waterproof and anti-foul coating on surface layers of leather, plastic, wood, metal, external walls and the like, and is environmentally friendly, high in industrial practicability and high in economic benefit.

The invention discloses a filter bed breeding system and a factory breeding method of buried-dwelling marine organisms, and belongs to the field of aquiculture. The breeding system comprises a breeding pond, an empty space is arranged at the bottom of the breeding pond, a sand layer filter bed is arranged on the empty space, and a breeding water layer is above the sand layer filter bed; the breeding pond is internally provided with an air-life tube, one end of the air-lift tube communicates with the bottom of the breeding pond, and the other end of the air-lift tube communicates with the breeding water layer; a first oxygen increasing tube is arranged at the bottom of the breeding pond; and a second oxygen increasing tube is arranged at the bottom of the breeding water layer. S and divinghabits of the buried-dwelling marine organisms such as Marsupenaeus japonicus and Babylonia can be satisfied, the problem of bottom substrate changing black during high-density breeding is advantageously solved, the adhesion and purification effect of probiotics are improved, breeding stability is improved, the filter bed breeding system and the factory breeding method of the buried-dwelling marine organisms are suitable for high-density factory breeding of the buried-dwelling marine organisms, and has a good application prospect.

The invention relates to the technical field of composite photocatalysis, in particular to a NiCoP-g-C3N4 / CdS composite photocatalyst as well as a preparation method and application thereof. The method comprises the steps of firstly, preparing pure CdS through a solvothermal method, and preparing g-C3N4 by directly calcining urea, wherein the g-C3N4 and the CdS have proper valence band and conduction band structures; preparing a g-C3N4 / CdS heterojunction through a chemical adsorption and self-assembly method; then adding a nickel source, a cobalt source and a phosphorus source into ultrapure water according to the mass ratio of 1: 1: 5; after the mixture is fully stirred and dissolved, adding a prepared g-C3N4 / CdS composite material, carrying out uniform ultrasonic treatment, completely evaporating moisture to dryness, and finally, calcining to successfully load granular NiCoP on the surface of the g-C3N4 / CdS heterojunction. The color of the composite material is related to the doping amount of NiCoP, the color of the composite material is gradually darkened from grass green along with the increase of the doping amount of NiCoP, the prepared composite photocatalyst is applied to a hydrogen evolution experiment, the hydrogen evolution performance is excellent, the hydrogen evolution rate is more than 23 times that of pure CdS, the repeated utilization rate is high, and the composite photocatalyst has a wide application prospect in the field of photocatalysis.

The invention discloses a working method of a cutting device with a monitoring function for spring processing, and relates to the technical field of spring production and processing; firstly, the adjusting nut is loosened before the device runs, and then the workpiece is placed on the conveyor belt close to the fixed drum position, and is ready to be delivered forward through the roller, at this time the staff turns on the switch on the control panel; then when the workpiece head touches the baffle, the staff confirms that it is correct and then depresses the foot switch, the cylinder starts to work and passes through the telescopic rod Control the movement of the pressure plate up and down, so that the saw blade does the cutting work downward; finally recover the cut workpiece, and at the same time, the chip suction device inside the fuselage starts to clean up the sawdust generated when the workpiece is cut, and then prepares to start the next round Cutting work: the working method of the present invention is easy for personnel to operate, the cutting precision and cutting speed have been greatly improved, and the safety is good at the same time, which ensures that the cutting work can be carried out efficiently and stably for a long time.

The invention relates to a combined strain for preparing Mahua fermented leavening dough, the Mahua fermented leavening dough, Mahua and application of the leavening dough. The leavening dough is produced by the following steps: subjecting lactobacillus helveticus MRS1, lactobacillus rhamnosus PCA2 and pichia kudriavzevii PDA1 to slant activation, respectively performing pure strain culturing, inoculating flour with the three bacterial solutions after the culture is finished, adding water, performing fermentation for 36-60 hours at a temperature of 25-37 DEG C, and performing fermentation to prepare the leavening dough so as to obtain the fermented leavening dough. The leavening dough is fermented by using the lactobacillus helveticus MRS1, the lactobacillus rhamnosus PCA2 and the pichia kudriavzevii PDA1. Different from the opening and natural fermentation process of traditional leavening dough, the production process is easier to control and can realize industrial production, and the leavening dough can produce abundant flavor substances such as alcohol, aldehyde, acid, ester and the like or flavor precursor substances, and improves the flavor of Mahua.

The invention relates to the field of water conservancy equipment, in particular to a siphon and electric pump water supply type water intake pump ship. The siphon and electric pump water supply type water intake pump ship comprises a ship body, an electric pump, a first water intake pipe and a second water intake pipe are fixed to the ship body, the water inlet end of the electric pump is connected with the first water intake pipe, the water outlet end of the electric pump is connected with the second water intake pipe through a connecting pipe, and one end of the second water intake pipe is connected with a siphon. The second water intake pipe is connected with a second valve and a vacuum pump system, the connecting pipe is connected with a first valve, the end, away from the second water intake pipe, of the siphon is connected with a water outlet pipe, and sewage filtering mechanisms used for filtering impurities in water and having an automatic cleaning functionthe are arranged at the ends, deep into the water surface, of the first water intake pipe and the second water intake pipe. An energy capturing mechanism for converting water body fluctuation energy and driving the sewage filtering mechanisms is arranged on the ship body. According to the siphon and electric pump water supply type water intake pump ship, siphon water intake and electric pump water intake are used in a combined mode, electric energy consumption is reduced, the water intake capacity is improved, and the efficient water intake efficiency and stability of the whole water intake pump ship are kept.

The invention discloses a solar power generation device with a brushing function installed on the top of a go-anywhere vehicle, and relates to the field of solar power generation devices. The solar power generation device comprises a protection frame, a cleaning mechanism, driving mechanisms, springs, a protective sleeve, a solar cell panel and supporting base mechanisms. The driving mechanisms are fixedly mounted on both sides of the protection frame, and the cleaning mechanism is movably mounted on the driving mechanisms. The protective sleeve and the protective frame are arranged on the outer periphery of the solar cell panel, the springs for damping are arranged between the protective sleeve and the protective frame, the automatic cleaning mechanism is arranged on the protective frame,and the support base mechanisms for cushioning and damping are arranged between the protective frame and the roof, which can prevent damage to the solar cell panel due to outer factors such as bumps,swaying, friction and influence on the light absorbing when the vehicle runs in a road with a complex condition, and can solve the problem of influence of sand, dust and snow on the service life andlow efficiency.

The invention discloses a stabilizing agent used for synchronously and efficiently repairing lead and cadmium composite polluted red earth and relates to the technical field of resource and environment engineering. The stabilizing agent specific to lead comprises, by soil sample weight percent, 3.3% of a first alkaline substance, 7% of a phosphorus-containing material B, 2% of a second alkaline substance, 0.04% of polysaccharide D, 10% of a sulfur-containing material E, 0.5% of an organic matter containing material F and 0.03% of organic acid G. The stabilizing agent specific to cadmium comprises, by soil sample weight percent, 3.3% of a first alkaline substance, 7% of a phosphorus-containing material B, 2.5% of a second alkaline substance C, 0.1% of polysaccharide D, 2.5% of a sulfur-containing material E, 0.1% of an organic matter containing material F and 0.02% of organic acid G. The stabilizing agent is used for the lead and cadmium composite polluted earth of the red earth quality and has efficient stability for the kind of pollution; through an orthogonal test, the optimal stabilizing time of lead is 24 d; and the synchronous stabling effect of lead and cadmium in the soil is relatively ideal, and the highest stabilizing rate of lead and cadmium are 69.51% and 76.09% correspondingly at the same time through a C-10 group during 24 d.

The invention relates to a coal pillar stability distributed monitoring system and method. The system comprises a strain data acquisition system used for monitoring coal pillar stress, a data transmission system used for data transmission, a data parsing system used for signal parsing, a data analysis system used for analysis expression and an early warning system used for early warning decision making. According to the invention, a distributed optical fiber sensing device is implanted into a coal pillar; the stress condition of the coal pillar in the recovery process and the stability condition of the coal pillar under influence of mining are sensed; distributed monitoring is carried out in a drilling length range; a real-time result can be formed after data acquisition is completed; thestability of the coal pillar is efficiently and visually analyzed and evaluated, the method can adapt to analysis of internal force characteristics and stability states of different types of underground coal pillars, the interference depth of the protected coal pillar under the mining influence is given, scientific technical guidance is provided for coal pillar reservation parameter optimization,and the problem that coal pillar reservation mainly depends on experience is solved.