364results about How to "Low cost requirements" patented technology

The invention discloses a wireless sensor network application-oriented low-power consumption radio frequency receiving and sending device which comprises a duplexer, a radio frequency front end, a variable gain complex filter, an automatic frequency tuning circuit, a programmable gain amplifier, a phase-locked loop frequency synthesizer, a digital processor, a storage, a variable gain power amplifier, a mixer and a low pass filter, wherein the duplexer, the radio frequency front end, the variable gain complex filter, the automatic frequency tuning circuit and the programmable gain amplifier form a receiving link which is used for receiving and processing a radio frequency signal and converting the radio frequency signal into a low-medium frequency digital signal so that the signal can be conveniently processed by a subsequent analog-digital converter later; the duplexer, the variable gain power amplifier, the mixer and the low pass filter form an emitting link which is used for mixing a baseband analog modulation signal into a carrier frequency and sending a wireless signal; and the receiving link and the emitting link share the duplexer. The wireless sensor network application-oriented low-power consumption radio frequency receiving and sending device realizes singlechip integration by adopting a standard CMOS (Complementary Metal Oxide Semiconductor) process, is simple in structure and low in power consumption, and is applicable to a wireless sensor network.

The invention discloses a starting method and system for an air conditioner permanent magnetic synchronization fan motor. The method comprises: obtaining a DC bus voltage V[DC] through detection; according to Istartup=Istart+K* V[DC], obtaining a starting current Istartup; after the motor operates for a preset time at Istartup, respectively detecting and obtaining Iu, Iv and Iw; according to the Iu, the Iv or the Iw, estimating and obtaining an operation speed Wrest; when it is determined that the Wrest is not smaller than a preset starting speed, controlling the motor to operate through acceleration to a preset speed Wrref; detecting the operation speed, when it is determined that the operation speed is not smaller than the preset speed Wrref, obtaining an Idref and an Iqref by subjecting the difference between the Wrref and the Wrest to a PI operation; and obtaining an operation voltage by respectively subjecting the difference between the Idref and an Idest, and the difference between the Iqref and an Iqest to an PI operation.

This invention relates to a drilling fluid lubricating additive and its preparation method characterizing that the proportion of the compositions is: offal of vegetable oil: 20%-40%, TEA: 1%-2%, NaOH: 4%-8%, 0P-10: 0.5%-0.8% and water, which utilizes the offal when refining food vegetable oil to replace petroleum-kind products to form a lubricating additive integrating anion surface active agent and non-ion surface active agent, having good lubricating efficiency and strong ability of anti-erosion against salt and Ca ions by two steps of saponification, further more, such additive does not contain any abialogical degradation mineral oil substances.

A suspended microbe carrier with high microbial affinity, adsorption and hydrophilicity is a macroreticular skeleton and millipore skeleton combined structure. Its preparing process includes such steps as preparing the aqueous solution of polyvinyl alcohol, proportionally adding sulfuric acid and formaldehyde solution, reaction, adding powdered imorganic filler, high-speed stirring, filling it in a mould, foaming by filling the pre-heated air via millipore air distributor, and treating at 40-80 deg.C for 4-24 hr.

The invention discloses a full-automatic biochemical analysis method. The method comprises the following steps: (1) preparing; (2) sampling, sample adding and stirring: an XYZ triaxial movement system is driven by a controlling circuit module to drive a reagent-sample adding and stirring system to transfer samples from a sample cabin to a reaction cup in a reaction disc and transfer reagents from a reagent cabin to the reaction cup in the reaction disc; when the reagents and samples are transferred, liquid in the reaction cup is stirred through the reagent-sample adding and stirring system; the specific liquid volume of sampling and sample adding is controlled by a plunger pump; (3) biochemical reaction and detecting; (4) cleaning. According to the invention, procedures such as sampling, sample adding, stirring, analyzing and detecting, and cleaning are integrated, so that the degree of automation is high, the operation is convenient, the relevant equipment cost is low, the detecting efficiency is high, and the popularization and implementation are easy.

The invention relates to the technical field of robot vision, and especially relates to a method for estimating the relative posture of a robot. The method specifically comprises the steps: setting a two-dimensional code identification of a specified type in a scene; carrying out the adaptive binarization processing of a scene image which is collected by a monocular near-infrared camera and comprises the two-dimensional code identification; locating specified positions of all detection graph and the center of all correction graph in the two-dimensional code identification as key points, and building a homography relation matarix according to the positions and relation of the key points; solving an external parameter matrix according to the set internal parameter matrix of the camera; finally carrying out the transformation of the external parameter matrix, and obtaining the relative posture relation between a two-dimensional code plane and the plane of the camera.

The invention provides an online and offline member integral promotion integrated system and method. The online and offline member integral promotion integrated system comprises a cashier system and an online shopping mall integrated platform, wherein the cashier system is formed by mutually associating a storage center, a server, a store management module and a consumer client through a network.The server, the store management module and the consumer client synchronize data of the real-time cashier system and the online shopping mall platform through the storage center to realize online andoffline integrated intelligent management of merchants. The popularization of permanent profits promotes consumers to actively popularize; the building order intelligent management is carried out, andthe same order is automatically grouped, and the shops perform cluster distribution, so that the delivery cost is reduced.

The invention relates to an instantaneous remote-sensing polarization imaging device based on a microwave plate array and a realizing method thereof. The microwave plate array is used for performing polarization modulation on a remote sensing image which is acquired by a telescope. Then the remote sensing image is converted to two-dimensional light intensity distribution through a unidirectional polaroid. Data inversion is performed on the two-dimensional light intensity for obtaining the polarization information of the remote sensing image. The used microwave plate array is manufactured through ultrafast laser microprocessing. Four different kinds of phase modulations are introduced to each micro area of the image. After the polarization information is converted to the light intensity through the polaroid, the Stocks vector of the area can be calculated, thereby obtaining the complete polarization information of the whole image. The instantaneous remote-sensing polarization imaging device can perform dynamic target remote-sensing measurement, and furthermore realizes complete polarization measurement with high time resolution and high space resolution.

The invention provides an electronic information label system of a motor vehicle based on RFID technology. The traditional papery annual inspection label in the motor vehicle is replaced with an electronic annual inspection label which is used for storing information about the vehicle (including type, color, flapper, information about the owner, annual inspection and examination states of the vehicle and the like); a receiving device receives information in the label in a wireless encoding mode so as to check the correctness of the information about the vehicle; and the information in the label is unchangeable as soon as being written in the label. The electronic information label system of the motor vehicle comprises: 1) the electronic annual inspection label; 2) a handholding reading device; 3) a vehicle-mounted reading device; 4) a fixed reading device; 5) a writing device; and 6) a management system. The electronic annual inspection label can also be used for replacing the traditional annual inspection labels in other fields.

The invention relates to a preparation method of a single crystal lithium-rich manganese-based anode material. In the process of preparing a single crystal lithium-rich manganese-based anode materialby calcining a lithium-rich manganese-based material precursor, the method comprises the following steps: S1, firstly, pre-sintering the lithium-rich manganese-based material precursor, and carrying out crushing treatment to obtain scattered oxide of the lithium-rich manganese-based material precursor; S2, uniformly mixing the oxide of the lithium-rich manganese-based material precursor with a lithium source and then sintering to obtain the oxide of the lithium-rich manganese-based material precursor. More preferably, a small amount of additive is mixed while mixing lithium after pre-sinteringand crushing; and the mixed additive may induce crystal growth and grain boundary fusion, which is favorable for forming a single crystal and improving the structure of the crystal; pre-sintering andcrushing can reduce the particle diameter to a relatively desirable range, so that the sintered body has better kinetic performance and achieves better mixing uniformity when mixing lithium and mixing the additive, to promote the formation of the single crystal. By means of such a preparation method, a lithium-rich manganese-based anode material having a high degree of single crystallization anda uniform particle diameter can be obtained.

The present invention relates to a controllable preparation method of a nitrogen-doped porous carbon-supported metal monoatomic material, and belongs to the technical field of material science and engineering. According to the present invention, porphyrin and a metalloporphyrin are polymerized through a polymerization reaction. The proportions of the porphyrin and the metalloporphyrin are regulated to regulate a metal content (0.06-4.00wt%), and monoatomic metal types (A type, AB type, ABC type) are regulated by regulating different types of metalloporphyrins. According to the present invention, controllable preparation of a metal monoatomic material is realized with good expansibility and reproducibility; meanwhile, the problems of low metal content, few types and the like in the prior art are solved, and researches in the related fields such as the synthetic methodology of metal monoatomic materials and the like.

The invention discloses a multifunctional driving monitoring early warning system based on a mobile terminal. According to the multifunctional driving monitoring early warning system, data are collected through four wide-angle cameras arranged on a front grating, a left side door mirror, a right side door mirror and a tail door of a vehicle respectively; then, the data are synthesized to form a complete image through the image processing technology; meanwhile, after electronic power-assisted steering data in an ECU of a vehicle and related working condition information of other vehicles are collected through an OBD2 port data collector which is connected to the ECU of the vehicle and comprises a main chip, namely, an eml327 chip, a 2.4 G module and other related circuits, the data are transmitted to a controller through the 2.4 G wireless technology; advancing trajectory prediction of the vehicle is calculated according to other data, including the axle base, the wheel tread and the like, of the vehicle; finally, the image where trajectory prediction is conducted is outputted to the mobile terminal device such as a mobile phone in a wireless mode, and the data are displayed through the mobile terminal device. According to the multifunctional driving monitoring early warning system, real-time image transmission and detection are achieved through a wireless communication method at a low cost.

The invention provides a human body anti-AQP4 autoantibodies detection material and a preparation method thereof. The preparation method comprises the steps of firstly acquiring M1 and M23 subtype AQP4 overall length target genes, dyeing into an HEK293 cell, and building an HEK293 / pCI-neo-M1-AQP4 cell and an HEK293 / pCI-neo-M23-AQP4 cell expressing M1 and M23 subtype AQP4; extracting an AQP4-cell membrane complex of the cells; finally curing the AQP4-cell membrane complex on a carrier, and obtaining the human body anti-AQP4 autoantibodies detection material. According to the human body anti-AQP4 autoantibodies detection material and the preparation method thereof provided by the invention, the extracted AQP4-cell membrane complex is used as a detection material, so that the intrinsic protein amount causing background coloration can be reduced; compared with a method for using the cell as the detection material for carrying out immunofluorescence detection, the detection sensitivity and the specificity are further increased, a detection result is easier and clear to judge, and the AQP4 autoantibodies of a patient can be simply, conveniently and quickly detected.

The invention discloses thermostatic equipment. In the equipment, an air passage is arranged in the back of a cavity and is sequentially equipped with a refrigerating system, a heating system and a fan from bottom to top, wherein wind blown from the fan flows towards an operating cavity via an air inlet, then returns to the air passage via an air outlet from the operating cavity after being bounced by a box door, and finally enters the operating cavity through the refrigerating system, the heating system and the fan so as to form one cycle. The thermostatic equipment can achieve better temperature uniformity only by virtue of the simple air channel structure, thus the structure of the equipment is simple and the processing cost and processing requirements are lowered. The invention further provides a method for controlling the thermostatic equipment. The method has the beneficial effects that parameters can be set as required; and by utilizing the method, the heating system and the refrigerating system are respectively controlled and meanwhile the temperature in the operating cavity is cooperatively controlled so that the temperature in the operating cavity is approximate to an expected temperature as far as possible. Therefore, the control method is simple and effective and can be used for greatly lowering the debugging requirement.

The invention belongs to the field of photovoltaic cells and discloses a maximal power matched transmission converting method and a maximal power matched transmission converting device of a photovoltaic cell. The method comprises the following steps: (1) converting a characteristic of a current source output by the photovoltaic cell into a characteristic of a voltage source; (2) detecting the output voltage of the voltage source and controlling an integrated circuit to sample an output voltage value by pulse-width modulation (PWM); (3) adjusting the output duty ratio in such a way that a duty ratio signal is directly proportional to the output voltage value; (4) outputting the duty ratio signal and connecting a power switch pipe, wherein the power switch pipe is connected with the primary side of a high frequency transformer, and the secondary side is connected with a load by an output rectifying circuit; (5) adjusting the opening and the closing of the power switch pipe by the duty ratio signal, changing the input resistance characteristic of the primary side of the high frequency transformer, tracing and matching the equivalent internal resistance characteristic of the photovoltaic cell and realizing the maximal output power of the photovoltaic cell. The invention can realize rapid, continuous and smooth real-time maximal power matching and tracing and greatly reduce the development cost and the development requirement due to adopting no SCM or DSP chip.

The invention discloses a GEO-LEO satellite network for global information distribution. The GEO-LEO satellite network comprises an outer-layer backbone network composed of three GEO satellites and an inner-layer enhanced network composed of at least one LEO satellite, the three GEO satellites are located over the terrestrial equator, the fixed point longitude difference is 120 degrees, the GEO satellites are connected through fixed inter-satellite links, the height of an LEO satellite orbit is 1,450 km, the orbit inclination is 84.5 degrees, the outer-layer backbone network and the inner-layer enhanced network carry out information distribution in a broadcast mode, the outer-layer backbone network and the inner-layer enhanced network carry out broadcast in a rate-free coding mode, and the GEO-LEO satellite network and the ground carry out broadcast in a rate-free coding mode. According to the GEO-LEO satellite network, seamless and enhanced coverage on the middle and low latitudes can be achieved only through few satellites, meanwhile, coverage on the south and north polar regions is considered, and worldwide interruption-tolerant distribution of information is achieved.

The invention discloses a cooling system of a hybrid electric vehicle, which is composed of an engine cooling system and a motor cooling system. The water pipe of the water jacket and the engine radiator; the motor cooling system includes a motor expansion tank, a motor water pump, a motor water jacket, a motor controller and a motor radiator, and the motor expansion tank is communicated with the motor water pump; the motor radiator . The motor water jacket and the motor water pump are connected to each other; the motor controller is arranged between the motor water jacket and the motor radiator; the engine radiator and the motor radiator are arranged side by side at the air inlet of the front cabin of the vehicle. The hybrid vehicle cooling system of the invention has low cost and good heat dissipation effect.

The embodiment of the invention discloses a method for P2P service access, which comprises the following steps of: acquiring the initial information of a P2P service and determining a P2P tunnel path; controlling a starting node of a P2P tunnel and an end node of the P2P tunnel to build the P2P tunnel according to the P2P tunnel path, and using the P2P tunnel to carry the P2P service; acquiring termination information of the P2P service; and controlling the starting node of the P2P tunnel and the end node of the P2P tunnel to eliminate the P2P tunnel to terminate the P2P service. The embodiment of the invention also discloses a system and a device for P2P service access. The method, the system and the device realize the control of the P2P service and load separation, and reduce the data flow accessing an aggregation network, hardware cost and data processing load.

The invention relates to the technical field of polypropylene, in particular to a flame-retardant polypropylene with light specific gravity and impact resistance and a preparation method thereof. The flame-retardant polypropylene comprises 70-80 percent of polypropylene, 6-10 percent of flame retardant, 3-8 percent of antimony oxide, 5-8 percent of flexibilizer, 5-10 percent of antioxidant, 5-10 percent of antioxidant adjuvant and 5-10 percent of hexylene radical bis stearamide according to weight percentage. The flame-retardant polypropylene not only is light in specific gravity and resistant to impact, but also retards flame, greatly reduces the production cost of manufacturers while clearing away the potential fire hazard of plastic furniture, especially solves the technical difficulty of PP reactive flame retardant and flexibilizer with cooperativity and is at leading level at home and abroad. Proved by tests, the physical property can simultaneously meet the requirements of impact-resistant and fireproof UL94-V0 of plastic chairs.

The invention discloses a novel full-automatic biochemical analyzer, comprising a pedestal (15), a reagent-sample introducing and stirring system (4), a control circuit module, a sample storage device, a reagent storage device, a rotary reaction disc (13), a stepping motor used for driving the reaction disc to rotate, a cleaning system (11), a plunger pump (12), a photoelectric detection system (9) and an XYZ triaxial moving system used for driving the reagent-sample introducing and stirring system to rotate, wherein the control circuit module, the sample storage device, the reagent storage device, the rotary reaction disc (13), the stepping motor, the cleaning system (11), the plunger pump (12), the photoelectric detection system (9) and the XYZ triaxial moving system are arranged on the pedestal, and the reagent-sample introducing and stirring system (4) has an integrated introducing and stirring function and is arranged on a Z-direction sliding assembly. The novel full-automatic biochemical analyzer provided by the invention integrates procedures consisting of sampling, sample introduction, stirring, analysis and detection, cleaning, etc., realizes full process automation and has the advantages of a high degree of automation, convenient operation, low cost, high testing efficiency and easy popularization and application.

The invention discloses a decoding circuit of Manchester encoding of a Tamagawa encoder which employs a programmable logic device to realize the decoding circuit of Manchester encoding of the Tamagawa encoder. The programmable logic device at least comprises a synchronization head detection unit, an enable signal generation unit, a decoding unit of Manchester code, a synchronous clock extraction unit, a series-parallel conversion unit, a CRC calibration unit, a data register group unit and a parallel interface unit. The decoding circuit provided by the invention can replace the existing special conversion chip, and employs the programmable logic device to realize the processing like decoding, series-parallel conversion, CRC calibration, data separationand the like of Manchester encoding of the Tamagawa encoder and is characterized by flexible design, high reliability strong practicabilityand the like. The circuit can be used in communication technology, signal processing, servo control and other fields, realizes detection and processing of the Tamagawa encoder signal, and has a great practical application value.

The invention relates to a preparation method and an application of a hydrophobic starch sulfate ester in a cement water-reducing agent, and belongs to the fields of chemistry and chemical engineering. The preparation method comprises the following steps: adding a sulfamic acid, starch, urea, aliphatic tertiary alcohol or aryl methyl alcohol and water into a reactor under the conditions that the molar ratio of the sulfamic acid to the starch is (0.5-3.0):1, the molar ratio of the urea to the starch is (0.1-3.0):1, the molar ratio of the aliphatic tertiary alcohol or the aryl methyl alcohol to the starch is (0.1-1) and the adding amount of the water accounts for 10% to 30% of the dry weight of the starch; and reacting for 1 to 10 hours at a temperature of 80 DEG C to 150 DEG C, thereby obtaining the hydrophobic starch sulfate ester in which the sulfonyl substitution degree is between 0.04 and 0.89 as well as the alkyl substitution degree is between 0.01 and 0.2. The hydrophobic starch sulfate ester is applied to the cement water-reducing agent, wherein the mass percent of the hydrophobic starch sulfate ester accounts for 0.1% to 1.0% of that of cement. According to the method, a dry method and one-pot reaction are adopted, so that the environmental pollution caused by the application of an organic solvent is avoided. Thus, the production cost is decreased.

The invention discloses a rail transit half-height emergency exit lock which comprises a mounting base and a locking mechanism arranged on the mounting base. The locking mechanism comprises an external lock disc arranged on the mounting base through a rotating shaft, an internal lock disc, a lock arm arranged on the mounting base and a drive mechanism. A lock opening matched with a sliding door lock pin is arranged on the external lock disc. The external lock disc is provided with a lock-up position for limiting the sliding door lock pin in the lock opening and a releasing position for releasing the sliding door lock pin. The internal lock disc and the external lock disc are coaxially fixed with each other. The lock arm is provided with a first working position abutting against the internal lock disc to keep the external lock disc in the lock-up position state or in the releasing position state and a second working position for releasing the internal lock disc. The drive mechanism is used for driving the lock arm to be switched between the first working position and the second working position. The invention further discloses a rail transit half-height emergency exit. According to the rail transit half-height emergency exit lock and the rail transit half-height emergency exit, features of all parts are fully utilized to conduct designing, reasonable arrangement of the structure is achieved, the lock is simpler and more reliable to use, processing cost is reduced, and the mounting requirement is lowered.

The invention provides an integrated type intelligent socket and a power network control system. The integrated type intelligent socket integrates the power control, the wireless communication capacity, the power carrier capacity and the gateway communication capacity, the power network control system can be constructed through simple power connection by the utilization of the integrated type intelligent socket, and equipment conditions are created for constructing the power network control system more conveniently with the low cost. The power network control system constructed based on the integrated type intelligent socket is free of additional local networks and complex gateway equipment, the complexity of a network framework is simplified, the hardware cost and the technical requirements of the network are reduced, environmental limitation caused by the wiring requirement is reduced, the system can be applied and implemented under the complex environment more easily, the problems that a power network control system is complex in network structure and high in hardware cost and technical requirement, and can not be applied under the complex and special environment in the prior art are well solved, and the system has better technical application and popularization value.

The invention discloses an automatic cipher machine test system and a working method of the automatic cipher machine test system. The automatic cipher machine test system comprises a cipher machine and a test machine. The test machine is provided with a test maintenance tool, a template library, a knowledge library and a firmware library. The firmware library is arranged on the cipher machine. A single instruction test method of the system includes the steps that the template library of the test machine prepares test templates, the test maintenance tool is led in and generates request data, and then the request data are sent to the cipher machine; the cipher machine returns response data. A batch instrument test method includes the steps that test files of the knowledge library are led in or loaded to the test maintenance tool; the test maintenance tool sends the test files to the cipher machine; the cipher machine returns the response data; the response data and historical data are compared, and then whether a test result is correct or not is judged; the steps are repeated to conduct batch test. According to the automatic cipher machine test system and the working method, automatic test and maintenance management of the cipher machine is achieved, and difficulties, cost and technical requirements of production, test and maintenance of the cipher machine are reduced.

The invention relates to a screw-thread grease for casing well drilling, wherein the constituents include (by weight percent): molybdenum disulfide composite lithium-based grease 10-50%, expanded graphite 10-30%, copper powder 1-10%, zinc powder 0-30%, lead powder 0-40%, magnesium sulfonate 0.1-5%, SP-80 0.1-8%, dimethyl silicon oil 0.1-5%, polytetrafluoroethylene 0-12%, gas phase silicon dioxide 1-15%. The screw-thread grease is prepared by using thickened mineral oil as carrying agent, charging solid substance, bulking agent, expanded graphite sealing material, then carrying out homogenization.

The invention discloses a fixed mobile convergence wavelength division access ring and an access method and relates to the metro area access field. The access ring takes CO OLT as a network convergent point to form annular topology, the ring internally comprises a main fiber and a standby fiber, each area business is accessed to OADM through R-OTU; under the main state, in a downlink direction, a signal sent by the CO OLT to the OADM realizes clockwise transmission in the main fiber; in an uplink direction, a signal sent by the OADM to the CO OLT realizes anticlockwise transmission in the standby fiber; in a standby state, after a node next to a fault point switches a signal to the standby fiber, a signal sent by the CO OLT to the OADM realizes anticlockwise transmission in the standby fiber, and a signal sent by the OADM to the CO OLT realizes clockwise transmission in the standby fiber. The fixed mobile convergence wavelength division access ring can satisfy low cost requirements of fixed access, mobile backhaul and robustness requirements of a great customer hotline, is convenient for network establishment and operation and maintenance, is consistent with trends of large bandwidth access and network flatness, is flexible in bandwidth distribution and is easy to upgrade.

The invention discloses an infrared light perfect absorber and a preparation method thereof, and aims at introducing a colloidal crystal material, utilizing electromagnetic resonance characteristics of a plasmonic element and a colloidal crystal on a metal surface, and adopting a colloid self-assembling method to prepare an infrared light perfect absorber that includes a substrate, a light-proof metal film layer on the substrate and a colloidal crystal-metal thin film resonance structure layer disposed on the metal film layer. The colloidal crystal-metal thin film resonance structure layer iscomposed of multiple identical colloidal crystal particles and a metal thin film deposited on the upper surface of each of the colloidal crystal particles. The colloidal crystal particles are uniformly arranged on the metal film layer. With the colloidal crystal-metal thin film resonance structure layer, the structure of an absorption unit of an original infrared light perfect absorber is simplified, the bandwidth of the absorption spectrum of the infrared light perfect absorber is increased, and the preparation requirements of low cost and easy large-area preparation are satisfied by using the colloid self-assembling method.

The invention belongs to the technical field of environmental remediation and particularly relates to a biological ventilation enhanced in-situ multi-phase extraction system. The biological ventilation enhanced in-situ multi-phase extraction system comprises a biological ventilation unit which uniformly injects air into a contaminated soil area and a nutrient solution injection unit which uniformly injects a nutrient solution into the contaminated soil area. The biological ventilation enhanced in-situ multi-phase extraction system further comprises a contaminant double-pump extraction unit, agroundwater treatment unit, an unsaturated zone gas treatment unit and extraction wells. The extraction wells are arranged under the ground of the contaminated soil area. The contaminant double-pump extraction unit is arranged on the ground of the contaminated soil area. The contaminant double-pump extraction unit is connected with the groundwater treatment unit and the unsaturated zone gas treatment unit. According to the biological ventilation enhanced in-situ multi-phase extraction system, the efficiency and effect of in-situ multi-phase extraction remediation of the soil and groundwater contaminated by organic matter can be enhanced through biological ventilation, and remediation of the contaminated soil and remediation of groundwater are achieved at the same time by separately extracting the groundwater and soil gas through the double-pump system.

The invention discloses a millimeter-wave circularly-polarized array antenna and a radiation body thereof. The antenna comprises a first dielectric substrate, a second dielectric substrate, a first floor, a feeding network and the radiation body, wherein the radiation body, the first dielectric substrate, the first floor, the second dielectric substrate and the feeding network are sequentially arranged from top to bottom, the radiation body comprises a radiation plate and a plurality of radiation units, the plurality of radiation units are arranged on the radiation plate, each radiation unit comprises four short-circuit patches, L-shaped branches are loaded at opposite corners of two of the short-circuit patches, cutting parts are arranged at opposite corners of the other short-circuit patches, and each radiation unit is connected with the first floor via a through hole in the first dielectric substrate. The millimeter-wave circularly-polarized array antenna has relatively long bandwidth, relatively large gain and relatively wide circularly-polarized shaft ratio and is simple in structure, and the requirement (42.3-48.4GHz) of a broadband wireless access system of industry and information technology planning used in millimeter-wave band mobile service can be met.