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391results about How to "Low cost of improvement" patented technology

Method for biologically improving saline-alkali soil

The invention discloses a method for biologically improving saline-alkali soil. The method includes the steps of 1, deep ploughing and deep tilling the saline-alkali soil and making the saline-alkali soil exposed under the sun, 2, digging wells to lower the underground water level, 3, constructing tall ridges, 4, adding biological modifiers and turning over the soil after the biological modifiers are evenly broadcasted to effectively increase organic matter and nutrients in the soil, loosen the soil, enrich microbial flora in the soil, increase activity of the soil, and neutralize saline and alkaline through some activated adsorption base ions in the modifiers, and 5, planting oats to absorb part of the base ions in the soil, convert the base ions into substances needed by growth of the oats and reduce the content of saline and alkaline of the soil. The method can be suitable for saline-alkali soil formed due to different factors, and the saline-alkali soil is improved through physical measures, water conservation measures, utilization of the biological modifiers and plantation of the oats. The method has the advantages that improvement economic benefits can be achieved early, operation is easy to conduct, promotional reproductively is high, improvement is sustainable, effects can be accumulated, in situ saline-alkali soil improvement can be achieved, and improvement cost is reduced.
Owner:SHANGHAI CHUANGBO ECOLOGICAL ENG

Electric energy meter capable of measuring residual currents

The invention provides an electric energy meter capable of measuring residual currents. The electric energy meter comprises a shell, a wiring terminal base, a phase line, a null line, a relay, a phase line current sampling resistor, a residual current transformer and a circuit device. The relay, the phase line current sampling resistor and the residual current mutual inductor are all arranged in the shell. The phase line and the null line penetrate through the residual current mutual inductor. The circuit device comprises a voltage sampling module, a signal processing module, an A / D conversion module, an electric energy metering module, a single-chip microcomputer processing module, a relay control module, a communication module, an LCD display module, a button module and a power module. The electric energy meter can measure and record the residual currents in user lines in real time and has the functions of residual current over-limit warning and event recording. The electric energy meter only needs to be improved on the basis of an existing intelligent electric energy meter, is not high in improvement cost, does not affect the functions and the overall dimension of the existing electric energy meter and is convenient to popularize in large scale.
Owner:CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +2

Tension control device for fiber tows

The invention discloses a tension control device for fiber tows. The tension control device comprises a first positioning roller, a second positioning roller, a tension roller, a guide device, a detection device, a controller and a motor speed regulator, wherein the guide device is used for guiding the movement of the tension roller; the detection device is used for detecting position change of the tension roller; the tension roller is positioned in a region between the first positioning roller and the second positioning roller; the axes of the tension roller, the first positioning roller andthe second positioning roller are parallel to one another; the tension roller is connected with the guide device; the detection device is used for feeding detection information of position change of the tension roller to the controller; and the controller is used for controlling the motor speed regulator to regulate the speed of a driving roller motor. By adopting the tension control device, the walking tension of carbon fiber tows can be regulated and controlled effectively, and carbon fibers with uniform and consistent quality can be produced; and the tension control device is suitable for large-scale industrial production, and has very good economic benefit and very wide application prospect.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Device for automatically adjusting and balancing tractor rear-suspension through electric control

The invention relates to the field of agricultural machinery, in particular to a device for automatically adjusting and balancing tractor rear-suspension through electric control. The device comprises a controller, a parameter input unit used for inputting preset angle values into the controller, a lifting pull rod, a first traction pull rod, a second traction pull rod, a first lifting arm, a second lifting arm, a vehicle body, an electromagnetic directional valve, a horizontal sensor, an oil cylinder and an oil cylinder length sensor, the horizontal sensor is installed in the middle of a rear axle of the vehicle body, the controller controls the oil cylinder to extend and contract by controlling the electromagnetic directional valve, the first traction pull rod and the second traction pull rod are arranged between an agricultural implement and the vehicle body in a symmetrical mode, one end of the oil cylinder is hinged to the second traction pull rod, and the other end of the oil cylinder is hinged to the second lifting arm; the oil cylinder length sensor is installed on the oil cylinder. By means of the device, various agricultural implements can be adapted to travelling on rugged terrain, the reaction is flexible, existing tractor rear suspension needs no great modification, the modification cost is low, and the application scope is wide.
Owner:青岛国润电子有限公司 +1

Break-resistant high-energy-density lithium ion battery positive plate and preparation method

The invention relates to the technical field of lithium ion battery preparation, in particular to a break-resistant high-energy-density lithium ion battery positive plate and a preparation method. The break-resistant high-energy-density lithium ion battery positive plate comprises a first positive material layer, an aluminum foil and a second positive material layer from top to bottom, an empty aluminum foil part is arranged on the surface of the aluminum foil, a positive lug is welded at the empty aluminum foil part, a break-resistant adhesive is adhered on the surface of the lower half part of the empty aluminum foil part, the positive lug comprises a cap welding part, a middle part welding part and a tail part from top to bottom, the tail part is adhered on the surface of the break-resistant adhesive, the middle part welding part is arranged at the middle part of the empty aluminum foil part, and the cap welding part of the positive lug extends out of the upper end of the empty aluminum foil part. During preparation, the break-resistant adhesive is adhered on the empty aluminum foil part coated with a positive material, the positive lug wound with winding adhesive is welded, and then a layer of electrode lug adhesive is respectively adhered on parts, located on the two surfaces of the positive plate, of the empty aluminum foil part. The positive plate has a simple structure and good break-resistant effect, and can support the use of a lithium ion battery with high volume energy density.
Owner:东莞凯德新能源有限公司

Method for improving and greening natural saline soil

The invention discloses a method for improving and greening natural saline soil. The method comprises the following steps: (1), concealed conduits are laid in an experimental field at a depth of 60 cm at intervals of 5 m, the soil is leveled, the field is divided into small areas each of which is 5 m in width and 10 m in length, and field ridges which are 0.5 m in height and 0.5 m in width are arranged between the small areas for preventing side leakage; and before the rainy season, each small area is irrigated with saline water which contains 3 to 10 grams of salt per liter for twice in a manner that the use amount is 1000 to 1500 m<3>/hm<2>; (2), the soil is deeply turned, and meanwhile corn straws with 50 to 150 m<3>/hm<2> are added; (3), ameliorant I or ameliorant II with the use amount of 5000 to 9000 kg/hm<2> is applied after each small area is plowed; and (4), natural rainfall in the rainy season is utilized to wash off the soil, and the change of physicochemical properties of the soil is measured. The experimental results show that the method provided by the invention has the following advantages: harmful salinity in the soil can be reduced quickly; emergency of alkalization in the desalination process of soil can be avoided; greening plants can be planted and survive; physical properties of soil can be effectively improved; soil bulk density can be reduced; total porosity and final infiltration rate of soil can be increased obviously; and a favorable soil environment can be provided for greening plants to grow better for a long term.
Owner:TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL

Sponge soil structure with high water retaining and water storage properties

The invention discloses a sponge soil structure with high water retaining and water storage properties. The structure is composed at least of a buffer layer, a water storage layer and a water retaining layer; the buffer layer is located at the bottom of the structure, the buffer layer is filled with a first filler, the first filler is formed by rubble and coal gangue, and the interior of the buffer layer is provided with a water discharging pipe; the water storage layer is located on the buffer layer, the water storage layer is filled with a second filler, the second filler is stirred matter of an agricultural waste compost substrate and soil, and the agricultural waste compost substrate comprises corn and straw stalks, and sludge in urban sewage plants; and the water retaining layer is located on the water storage layer, the water retaining layer is filled with a third filler, and the third filler is soil to which a water-retaining agent is added. The structure can repair and improve degraded and polluted soil, especially soil in arid areas, air permeability and water holding capacity of improved soil are greatly improved, soil irrigation in a later period can be effectively reduced, and water resource high-efficiency utilization is realized. The structure and materials are easy to obtain, and the structure has extremely high application value in improvement aspects of the degraded and polluted soil.
Owner:EAST CHINA NORMAL UNIVERSITY

Magnetized CCP (Capacitively Coupled Plasma) source driven by RF and DC mixedly

The invention discloses a magnetized CCP source driven by RF and DC mixedly. The magnetized CCP source comprises a plasma discharge cavity, a gas inlet, a gas outlet, a first pole plate, a second pole plate, a substrate, a DC source, an RF power supply and a magnetic field generator, the first and second pole plates are arranged in the plasma discharge cavity in parallel, one end of the DC power supply is connected to the first pole plate, the other end of the DC power supply is grounded, one end of the RF power supply is connected to the second pole plate, the other end of the RF power supply is grounded, the substrate is arranged on the second pole plate and positioned in the surface opposite to the first pole plate, the gas inlet is arranged in one side of the plasma discharge cavity, the gas outlet is arranged in the other side of the plasma discharge cavity, the magnetic field generator is arranged outside the plasma discharge cavity, and a magnetic field generated by the magnetic field generator is parallel with the first pole plate and the second pole plate. Due to influence of the magnetic field, high-energy secondary electrons and thermions are limited in a main plasma area, the ionization degree is improved, and the plasma density is increased greatly.
Owner:HUAZHONG UNIV OF SCI & TECH

Remote control system and mobile terminal

The invention discloses a remote control system and a mobile terminal and belongs to the technical field of remote control over televisions. The remote control system comprises an image shooting unit, a display unit, a touch screen unit, a storage unit, a processing unit and a communication unit, wherein the image shooting unit is used for acquiring a display image of an intelligent display device, the display unit is connected with the image shooting unit and used for displaying a shot image, the touch screen unit is connected with the display unit and used for acquiring input operation, the storage unit is used for saving a touch control interface template and a control command corresponding to preset operation, the processing unit is connected with the image shooting unit, the touch screen unit and the storage unit and used for obtaining the touch control interface template according to the display image and obtaining a corresponding control command according to the touch control interface template and user operation, and the communication unit is connected with the processing unit and the intelligent display device and used for sending the control command to the intelligent display device. The mobile terminal comprises the remote control system. The remote control system and the mobile terminal have the advantages that the remote control process is simplified, remote control over the televisions can be achieved, and the improvement cost is quite low.
Owner:PHICOMM (SHANGHAI) CO LTD

Coastal saline-alkali soil improving method

The invention relates to a coastal saline-alkali soil improving method and belongs to the technical field of saline-alkali soil improvement. The method comprises the following steps that 1, a drainage ditch is built; 2, soil tillage is conducted; 3, drip washing and salt elimination are conducted; 4, the third step is repeated until the salinity and alkalinity are lowered to the specialized range; 5, resin is poured into saline-alkali soil to form a salt prevention layer; 6, the bottom of the drainage ditch is filled with filling materials; 7, soil conditioner and organic fertilizer are applied to the soil. According to the coastal saline-alkali soil improving method, firstly a drainage system is built, soil tillage is conducted, then the tilled soil is subjected to drip washing, after drip washing is conducted repeatedly, the salinity and alkalinity of the soil are lowered quickly, and the method accords with the growth of general plants; due to the fact that fertilizer in the soil is also taken away at the same time of drip washing, the soil is poorer and easier to harden, and therefore, complex fertilizer operation such as application of biological fertilizer is also conducted after drip washing on the soil, so that the fertility of the soil is improved quickly, and the method is suitable for the growth of plants.
Owner:德润建安工程集团有限公司

Control method of robot intelligent welding

The invention discloses a control method of robot intelligent welding. The method sequentially comprises the following steps that image marking is carried out on a welding point of a part to be welded; an image recognition system is built, and the image mark of the welding point is recorded into the image recognition system; the image recognition system is matched with a welding robot; unification and standardization are carried out on the image recognition system and a three-axis coordinate system inside the welding robot; the part to be welded is placed to a welding platform of the welding robot; the image recognition system and the welding robot are started; the image recognition system detects the image mark, the same as the recorded mark, on the part to be detected, and a three-dimensional coordinate of the part to be detected is obtained; the welding robot obtains a three-dimensional coordinate of a welding gun on a welding arm; the three-dimensional coordinate of the obtained image mark is compared with the three-dimensional coordinate of the welding gun, and vector operation is carried out; and a mechanical arm is controlled to move according to a vector operation result. The control method has the advantages that the improvement cost is low, improvement can be directly carried out on existing equipment, a self-inspection function is achieved, and working stability is high.
Owner:CHENGDU LINGCHUAN SPECIAL IND

Signal modulation method and execution device, channelization method and processing system

The invention discloses a signal modulation method, an execution device, a channelization method and a processing system. The process of the signal modulation method comprises the following steps: after carrying out interleaved filtering on signal optical combs, carrying out modulation and filtering on microwave signals based on two paths of optical signals respectively, and then carrying out combination processing. According to the channelization method, coherent signal light and local oscillation light are generated through a light source, a signal optical comb and a local oscillation optical comb are generated on the basis of the coherent signal light and the local oscillation light respectively, a combined signal is obtained through the signal modulation method, and after the combined signal and the local oscillation optical comb are combined, channelization processing based on coherent beat difference is carried out. The system comprises a coherent light generation module, a signal light comb generation module, a local oscillation light comb generation module, an overlapping signal processing device, a channel separation module and a coherent processing module. The upper limit of the working frequency of the microwave signal can be widened to two times of the original working frequency.
Owner:SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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