282results about How to "Solve the disadvantages" patented technology

The invention relates to a fabricated section-adjustable formwork system for square stiff pillars. The fabricated section-adjustable formwork system is of a rectangular structure formed by four surface formworks. Every two surface formworks are connected with each other through angle-steel positioning members. A plurality of evenly distributed rectangular grooves are formed in each angle-steel positioning member vertically. A plurality of limiting cross beams are arranged on the outer surfaces of the surface formworks. Two ends of each limiting cross beam are located in the corresponding rectangular grooves, and are vertically connected with the corresponding limiting cross beams on the adjacent surface formwork. Each surface formwork is formed by connection of a plurality of standard unit formworks and a non-standard unit formwork. Each limiting cross beam is formed by inserted connection of outer square steel and inner square steel, and the length of each limiting cross beam is adjusted according to the width of the corresponding surface formwork. The formwork system has the advantages that during turnover, damage degree is low, construction speed is high, auxiliary measures are few, and requirements on operation levels of operators are low; the formwork system is applicable to construction requirements of section changes of the square stiff pillars, is environment friendly and has high economic and social benefits.

The present invention discloses a method to realize groups chat, which contains forming a chat group, group member including a first member and second member; first member establishing point-to-point connection with each second member; first member receiving point-to-point connection upper transmitted voice data by second member, mixing own voice data with received voice data to generate mixing sound data, transmitting mixing sound data to second member through point-to-point connection; second member listening said mixing sound data. The present invented method makes different process to letter chat and speech-sounds chat, reducing group chat requirement to network bandwidth and transmitting voice data machine configuration, reducing network transmission data quantity and resource rational utilization.

The invention discloses a dual-power driving system configuration for an electric tractor. The system comprises a rear power output shaft PTO transmission box, a rear axle differential, a rear deceleration transfer integrated box, a front axle driving motor, a front axle differential, a front deceleration box and a rear axle driving motor. Various defects of fuel energy can be overcome, existing limitation of insufficient power caused by a single motor can be broken through, high-housepower output is realized, and high power output needs are met; the dual-power driving system configuration canrealize two functional forms, namely functions of independent PTO and dependent PTO, of PTO output of the electric tractor, and an electric tractor with a single-drive motor does not have this characteristic; due to distributed control of the dual-motor configuration, front drive, rear drive and four-wheel drive operation conversion can be realized according to different agricultural working condition needs, and sliding during field operation can be reduced effectively.

The invention belongs to the field of software reliability forecasting, and particularly relates to a software reliability forecasting method based on selective dynamic weight neural network integration. The software reliability forecasting method mainly includes the steps: A, generating neural network individuals: selecting Elman neural networks as network individuals and generating n neural network individuals by a Bagging algorithm; B, optimizing the individuals: firstly, determining the cluster number of the generated neural network individuals by a K value optimization algorithm, secondly, clustering the neural network individuals according to a K-mean clustering algorithm to increase individual difference, and finally, integrating the clustered individuals; C, building a dynamic model: building a dynamic weight model based on a fuzzy neural network by the aid of errors of fitting data of the optimized individuals; and D, performing integrated output: combining forecasting results of the optimized individuals with weights generated by the dynamic weight model to generate final forecasting results. A neural network integration algorithm is applied to software reliability forecasting, and the software reliability forecasting method has the advantages of high precision and fine stability.

The invention discloses a changeable retractor device for a railroad bridge. A waterproof ribbon can be conveniently changed under a track base plate or a track bed under the condition of keeping normal use of a top track structure. The device comprises a pair of connection strips (20) fixed on two side walls of a contraction joint (60) via an anchorage member (40) and a waterproof ribbon (10) with two edges connected with the connection strips (20), wherein the connection strips (20) are provided with anchorage grooves (21) stretching towards a full length direction. Downward convex anchorage location bosses (11) are arranged at two edges of the waterproof ribbon (10), and the section shapes of the anchorage location bosses (11) are matched with the section shapes of lower grooves (21a) of the anchorage grooves (21); two edges of the waterproof ribbon (10) are pulled into the anchorage grooves (21) from the longitudinal ends of the connection strips (20); and a lock strip (30) is pressed in a gap between the upper surface of the waterproof ribbon (10) and the tops of the anchorage grooves (21) so that the waterproof ribbon (10) is in anchored connection with the connection strips (20).

The invention relates to a cooling system for grinding process of a grinding machine, in particular to a dry-cold grinding device for the grinding machine. The dry-cold grinding device for the grinding machine comprises an infrared thermo detector, a controller, a nozzle and an air cooling mechanism. The infrared thermo detector and the nozzle are arranged over a grinding area where the grinding wheel and work piece are engaged with each other; the nozzle is connected with the air cooling mechanism; and the infrared thermo detector outputs signals and then connected with the controller after the signals are converted into voltage signals, and the controller controls the flow output to the nozzle by the air cooling mechanism. The air cooling mechanism comprises an air compressor, an air storage cylinder, an air drier, an air purifier, an air refrigerating unit and a flow adjusting valve, which are sequentially connected; and the output end of the flow adjusting valve is connected with the nozzle, and the controller outputs signals to be connected with the flow adjusting valve. The device takes hypothermal compressed air as a cooling medium to remove the heat produced in the grinding process, thereby overcoming the defects caused by a grinding fluid, improving the working environment and reducing the production cost.

The invention discloses a bottom opening type flap gate and a water storing and draining method implemented by the same. The bottom opening type flap gate comprises a dam, a gate leaf supporting seat, a gate leaf shaft, bottom water-stop rubber, a gate leaf, a sliding shaft, a slide rail, side water-stop rubber, a hydraulic cylinder, a strut, a cylinder shaft, a cylinder supporting seat, a strut shaft, a strut supporting seat, a hydraulic system, a buttress, a sealing block and a poured adjusting layer. The bottom opening type flap gate and the water storing and draining method have the advantages that the bottom opening type flap gate and the water storing and draining method are applicable to storing and draining water for river channels, a gate can be opened during water storing and can be closed during water draining completely by means of controlling the hydraulic system, and is supported by the strut when in closed or open state, and the hydraulic system is in a closed state, so that the hydraulic cylinder can be prevented from being stressed for a long time; the gate can be opened until the gate leaf is in a horizontal state, so that the water draining capacity can be maximized; various shortcomings such as impact damage due to objects, impurity blockage, shaking, flapping, floating and the like of the traditional flap gate can be overcome; a remote real-time monitoring effect can be realized by the aid of the hydraulic system, the bottom opening type flap gate is simple in structure, the cost is low, and technical merits are obvious.