219results about How to "Strong handling" patented technology

A monolithic, multi-bandgap, tandem solar photovoltaic converter has at least one, and preferably at least two, subcells grown lattice-matched on a substrate with a bandgap in medium to high energy portions of the solar spectrum and at least one subcell grown lattice-mismatched to the substrate with a bandgap in the low energy portion of the solar spectrum, for example, about 1 eV.

The invention provides a resin matrix composite with a super-hydrophobic bionic surface and a preparation method of the resin matrix composite. The method comprises steps as follows: the surface of a matrix of the resin matrix composite is polished until the surface turns white; the matrix of the resin matrix composite is processed through ultrafast laser, and a microstructure is formed on the surface; a first coating is sprayed on the microstructure surface of the matrix of the resin matrix composite through a pneumatic type paint spray gun to form a bonding layer, a second coating containing nanosilicon dioxide particles is sprayed to form a surface hydrophobic function layer, and the resin matrix composite with the super-hydrophobic bionic surface is obtained. The preparation method is simple to operate and facilitates production, the prepared resin matrix composite with the super-hydrophobic bionic surface can allow water drops to freely slip off, and the real self-cleaning super-hydrophobic function is realized.

The invention discloses a three-phase load flow calculation method of a weak looped distribution network comprising multi-type distributed power sources. Firstly, the effective three-phase load flow calculation method of a weak looped distribution network is put forward in a distribution sequencing network based on a sequence component calculation method and in combination with characteristics of the weak looped distribution network and a loop analysis of a road. Secondly, detailed formula derivation of iterative computation of distributed generation (DG) of a PQ node type, a PQ (V) node type, an OV node type and a PI node type is conducted and the easy formula is introduced into the load flow calculation method. The three-phase load flow calculation method of the weak looped distribution network comprising the multi-type distributed power sources can effectively process multi-type DG and the weak looped distribution network and is distinct in calculation procedure, simple in programming, and easy to achieve. In addition, the three-phase load flow calculation method of the weak looped distribution network comprising the multi-type distributed power sources retains strong points of rapid calculation and stable convergence of a forward-back substitution method catering to branch circuits. Finally, effectiveness and good convergence of the three-phase load flow calculation method of the weak looped distribution network comprising the multi-type distributed power sources is tested and verified by means of a IEEE (institute of electrical and electronic engineers)-37 generatrix test calculation case, and the three-phase load flow calculation method of the weak looped distribution network comprising the multi-type distributed power sources has good ability of processing the multi-type DG and the looped network.

The invention discloses a method for measuring the flow and the mud content of an artificial rainfall runoff plot, which specifically comprises the following steps of: (1) selecting an appropriate slope in the wild as a test site, and preparing a water source and a power source; (2) surrounding the test site into a corresponding runoff plot by using baffle plates; (3) installing an artificial rainfall device and a surface slop runoff and mud content measurement instrument; and (4) adjusting rainfall intensity within a time period, and monitoring the parameters of flow and mud content of the runoff plot in the rainfall erosion process in real time. The invention also discloses a control system of the measurement method. By using the method, the flow and the mud content of the runoff plot can be recorded in real time. Moreover, the method has great mobility, the measurement effect closest to natural is achieved according to different surface conditions and site measurement, and a data basis is established to quickly acquire the soil erosion modulus of development and construction projects.

The invention belongs to the field of lithium ion battery materials, and particularly discloses a porous silicon monoxide composite material. The composite material comprises an inner core, a middle layer compounded on the surface of the inner core and an outer layer compounded on the surface of the middle layer, wherein the inner core is silicon, the middle layer is silicon monoxide and silicateof metal M dispersed in the silicon monoxide, the outer layer is a carbon coating layer, and the metal M is a metal element capable of reducing silicon oxide. The invention also provides a preparationmethod of the composite material and an application of the composite material as a negative electrode active material of a lithium ion secondary battery. Research finds that the composite material has the characteristics of long cycle life, high initial efficiency and the like.

The invention relates to a target object trigger method and system and wearable equipment based on virtual reality. The method includes the following steps: tracing the user's point of regard in the human-computer interaction of virtual reality, and judging whether the user's head has the preset action when the point of regard rests on the interactive target objects. If so, the interactive operation set beforehand to the target object will be triggered; otherwise, the interactive operation will not be triggered. Action of the head is preset to trigger the target object, which makes human-computer interaction become more natural and independent, happen faster in real time without delay, and have strong operability.

The invention discloses a distributed generation power distribution network three-phase load flow calculation method taking a phase sequence mixing method into consideration. The distributed generation power distribution network three-phase load flow calculation method comprises the following steps that firstly, a power distribution network three-phase load model, a network phase sequence parameter model and a distributed power supply access model are built based on the phase sequence mixing method, an effective three-phase unbalance power distribution power network improved load flow calculation method is disclosed in a power distribution sequence network, and a sequence component method is fully utilized to process the advantages that a three-phase unbalance system has access to symmetrical distributed generation (DG) and PV nodes; and then PQ, PQ(V), PV and PI node type DG calculation models are deduced in detail and are induced into the discloses load flow calculation method. The distributed generation power distribution network three-phase load flow calculation method taking the phase sequence mixing method into consideration has the advantages of being clear in calculation process, simple to program, quick in calculation speed and good in convergence. Finally, the effectiveness and generality of the distributed generation power distribution network three-phase load flow calculation method are tested and verified through diffset. The distributed generation power distribution network three-phase load flow calculation method has good convergence and strong capacity of processing DG nodes and generating reactive power boundary cross.

The invention relates to a method for preparing rare earth polishing powder, which specifically comprises the steps of firstly slowly mixing a certain amount of light rare earth solution with fluorine-containing acid solution, carrying out reaction for 5-10 minutes for fluoridizing rare earth, generating the precipitation of a partially fluoridized rare earth fluoride, further heating materials in a reaction kettle, keeping the temperature of the materials at 30-45 DEG C, adding oxalic acid solution, generating the precipitation of a rare earth polishing powder precursor with uniform particlesize, smashing till obtaining a precursor material with the average particle size of 1-3 mu m, roasting for 3-6h in an electric furnace at the temperature of 600-1000 DEG C, cooling, then re-smashingtill the average particle size of 2.0 mu m, and controlling the maximum particle size within 20 mu m for obtaining the rare earth polishing powder. The fluorine content is introduced when preparing the rare earth polishing powder in the method, and hydrofluoric acid solution or fluosilicic acid solution is used for direct co-precipitation with rare earth ions, thereby leading the fluorine to be bonded with the rare earth ions more evenly, producing favorable impacts on grinding and improving the performances of the rare earth polishing powder; furthermore, the method is simple and strong in controllability.

The invention relates to a water conveying device of a granular material pipeline. The water conveying device comprises a material conveying pipe, a water supply pipe, a water spray pipe, a main water pump and a feed hopper, wherein a nozzle is arranged on the front end of the water spray pipe, the front end of the nozzle extends into the back end of the material conveying pipe, the front end of the water spray pipe is fixed to and is in sealing connection with the back end of the material conveying pipe, the back end of the water spray pipe is connected with a water outlet of the main water pump, the lower end of the feed hopper is connected with the top of the material conveying pipe, a feed opening is formed in the bottom of the feed hopper and is located above the nozzle, a water spray opening in the front end of the nozzle is located in the front side of the feed opening in the bottom of the feed hopper, the nozzle is of a conical structure of which the front part is thin and the back part is thick, the outside diameter of the back end of the nozzle is equal to the inside diameter of the material conveying pipe, one end of the water supply pipe is connected to the water spray pipe, the other end of the water supply pipe is connected to the upper part of the feed hopper, and a regulating valve is arranged on the water supply pipe. The water conveying device has the advantages of reasonable design, easiness in operation, high degree of automation, high controllability, high conveying efficiency, difficulty in blocking, high practicability and easiness in popularization and application, and the abrasion influence of solid particles on the main water pump and an enhanced water pump is avoided.

The invention discloses a straight thread rolling mechanical integrated machine, which comprises a rolling head, a steel bar clamping mechanism, a speed reducing motor, a feeding system, an electric control system and a cooling system, wherein the rolling head is axially linked with the speed reducing motor; the feeding system is arranged below the rolling head and the speed reducing motor and in fit transmission with the rolling head and the speed reducing motor; and the electric control system is arranged below the feeding system. The integrated machine has simple configuration, good using effect, strong maneuverability and high cost performance, and is suitable for large-area popularization and use in the engineering field.

The invention discloses a photovoltaic cell panel with intelligent monitoring and anti-theft functions. The photovoltaic cell panel comprises a solar cell and a monitoring and management module of the solar cell, wherein a microprocessing chip (1) capable of storing a global unique identifier, a communication module (2), an electronic switch (3) and a global positioning system (GPS) module (4) are arranged in the monitoring and management module. The photovoltaic cell panel with the intelligent monitoring and anti-theft functions is reasonable in structural design, high in intelligence and stable in performance. The monitoring and management module, the microprocessing chip capable of storing the global unique identifier, the GPS and the like are added to the photovoltaic cell panel to achieve two-way communication with a solar controller through a radio frequency communication module or a carrier communication module. The communication adopts encryption protocols, so output voltage, output currents, output power, internal temperatures and operation states of the photovoltaic cell panel can be monitored locally and remotely, the application range is wide, and the anti-theft function is strong.

The invention provides a mobile phone control rod. The mobile phone control rod comprises a control box and fixing arms. The control box is provided with a shaking rod. The fixing arms are used in pairs and symmetrically hinged to the two sides of the control box. The inner sides of the fixing arms are respectively provided with an L-shaped installation groove, and after a mobile phone to be controlled is assembled in the installation grooves in the inner sides of the two fixing arms, and the back faces of the extending ends of the two fixing arms are connected through an elastic rope in a tensioning mode. The mobile phone control rod is mainly used when people play a mobile phone game; according to the mobile phone control rod, the two fixing arms are tensioned tightly through the elastic rope so that the mobile phone can be clamped tightly, and then the fixing arms are connected with the mobile phone through a connecting line. The mobile phone control rod simulates a game control rod structure, the controllability is higher, operation on a screen can be avoided when people play the mobile phone game, and people can see more clearly and carry out operation more accurately when playing the mobile phone game.

The invention discloses a silicon-carbon composite negative electrode material and a preparation method and application thereof. The invention belongs to the technical field of lithium ion battery negative electrode materials, and particularly discloses a nitrogen-rich graphite nanosheet/nano-silicon composite material which comprises a nitrogen-rich graphite nanosheet with a two-dimensional structure and nano-silicon particles uniformly compounded on the surface of the nitrogen-rich graphite nanosheet in situ. Besides, the invention further provides preparation of the material, a CN source isused as a precursor, two-stage treatment is performed in an oxygen-containing atmosphere, then silicon is loaded and mixed with a metal reducing agent and compound salt, and two-stage gradient reduction is performed in an inert atmosphere. Research finds that the structural stability can be effectively improved and the electrochemical performance of the material can be improved due to the synergistic effect between the components and the morphological characteristics of the material.

The invention relates to a preparation method and product of a side long chain alkyl polyurethane chain extender. The preparation method comprises the following steps: preparing raw materials including diisocyanate, higher aliphatic alcohol, polyhydroxy compounds, a catalyst and an organic solvent; performing dehydration pretreatment on the polyhydroxy compounds; alkylating diisocyanate; and alkylating the polyhydroxy compounds to prepare the side long chain alkyl polyurethane chain extender. The preparation method disclosed by the invention is strong in controllability and simple in equipment; the side long chain alkyl polyurethane chain extender prepared by using the method disclosed by the invention can be used for preparing various polyurethane materials so as to ensure that relatively high content of side long chain alkyl groups can be introduced into polyurethane macromolecules, significant water-repellent and anti-fouling properties can be brought to the polyurethane materials, and good market prospects can be achieved; and the product is safe and environment-friendly, and is convenient to use.

The invention discloses an industrial aluminum ash recycling method, and belongs to the field of harmless treatment and recycling of hazardous waste. By adoption of the industrial aluminum ash recycling method, the problem that when an existing technique is used for resourceful treatment of aluminum ash, the procedures are complex, energy consumption is high, environmental pollution is caused, andprepared raw materials are poor in quality, high in impurity content and instable in performance are solved. The industrial aluminum ash recycling method comprises the steps that aluminum ash, a compound and an auxiliary are mixed in proportion and ground into powder with the granularity of 50-325 meshes; the ground mixed powder is activated for 1-24 hours at the temperature of 500-2500 DEG C; and then the activated powder is washed and dried according to the solid-to-liquid ratio of 1:1-10, and thus an aluminum renewable industrial raw material which is stable in performance, high in effective substance content, low in impurity content and good in economic benefit is prepared. According to the industrial aluminum ash recycling method, operation is easy, pollution is avoided, and the utilization rate of elements in aluminum ash is high; and the prepared industrial raw material is wide in application range and can be applied to the industries of refractory materials, ceramic materials,grinding materials, thermal insulation materials and coarse industrial aluminum oxide.

The invention discloses a motion control system for rotary floating-type colored light balls. The motion control system for rotary floating-type color colored light balls comprises a box body and a remote controller, wherein the box body comprises a base (1) and a transparent outer cover (4) buckled on the base; a circular channel is formed between the transparent outer cover and the base; a plurality of colored light balls (5) are arranged inside the circular channel; a plurality of charging coils (2) are arranged in the interior of the base; multiple rows of slant gas ejector pipes (3) and multiple rows of horizontal gas ejector pipes (6) are arranged on the base; gas jetted by the gas ejector pipes form a circular airflow inside the circular channel, so as to drive the movement of the colored light balls; each colored light ball comprises a transparent ball-shaped outer housing (51); a circuit board (54), an induction coil (55), a supporting rod (53) and a three-color lamp (52) are arranged in the interior of the transparent ball-shaped outer housing. The motion control system for rotary floating-type color colored light balls provided by the invention is ingenious in conception, unique in the structure, easy to implement and can produce a dynamic and multicolored visual effect.

The invention discloses a self-balancing electric monocycle convenient to carry. The self-balancing electric monocycle comprises a shell, a motor wheel, a controller, pedals and a battery, wherein the controller and the battery are arranged in the shell, the pedals are located at the lower ends of the two sides of the shell, the controller is used for controlling operation of the self-balancing electric monocycle, and the battery is used for supplying power for the self-balancing electric monocycle. The self-balancing electric monocycle further comprises a foldable handlebar and a dragging wheel set, the foldable handlebar is arranged on the front side or the rear side of the self-balancing electric monocycle, and the dragging wheel set is arranged on the left and right of the bottom of the self-balancing electric monocycle and can be combined with the foldable handlebar, so that the monocycle can be carried in a dragging mode. The self-balancing electric monocycle is simple and compact in structure and convenient to carry.

The invention provides a cooling device for the interference fit of a large-scale workpiece. The cooling device comprises a liquid nitrogen container and a cooling tank, wherein the liquid nitrogen in the liquid nitrogen container is transmitted to the cooling tank through a pipeline. The cooling device is characterized in that a liquid nitrogen vaporization device is arranged on the pipeline; a cooling medium in the cooling tank is low-temperature gas generated after the liquid nitrogen is vaporized; an installation table for placing a contained piece is arranged at the bottom of the cooling tank; and the liquid nitrogen level in the cooling tank is lower than the table surface of the installation table. The cooling device can be used for controllably cooling a special-shaped contained piece which has large size, complicated structure and asymmetrical shape, so that the dimension of the cooled contained piece is contracted to reach the assembly requirements; the property change of a bearing material caused by rapid temperature reduction can be effectively avoided, thereby avoiding the contained piece from being damaged; the cooling course is safe and reliable; and the maneuverability is strong. The cooling device has the advantages of low time consumption, high efficiency, good interference fit effect, low cost and safe operation and does not generate the conditions that the contained piece is locked and damaged.

The invention relates to the technical field of large explosion wave simulation device drivers, and discloses a dual-driver and a driving method for a large explosion wave simulation device. The dual-driver comprises a multi-tube explosion driver (1), an atmospheric air chamber multi-diaphragm driver (2) and a multi-point type non-electric initiating system (3), wherein a plurality of single drivers (17) of the multi-tube explosion driver (1) are fixed in a buttressed reaction wall (15); the front ends of the single drivers (17) are positioned in a high-pressure section (4); a diaphragm and high-pressure blocking structure (32) of the atmospheric air chamber multi-diaphragm driver (2) are positioned at the outlet end of the high-pressure section (4); a plurality of diaphragms (38) are arranged on one side, close to a high-pressure air chamber, of a main body frame of the diaphragm and high-pressure blocking structure (32). The dual-driver has the advantage that an explosive shock wave environment can be simulated in various combined driving modes, and has the characteristics of high operability, high repeatability, high efficiency and safety.

The invention discloses a production method of special-flavor type rapeseed oil. The production method comprises the following steps: selecting rapeseeds of over three-level national standards as production materials, and clearing and removing impurities for the rapeseed materials; carrying out flaking treatment on the cleared rapeseeds, roasting rapeseed pieces which are 0.2mm thick by flaking for 40 minutes in a steaming-roasting pot of 250 DEG C-260 DEG C, and rolling the rapeseed pieces in an oil press to obtain rapeseed crude oil; pumping the crude oil into a filter for removing particle impurities, pumping the filtered crude oil into an oil refining pot, adding hot water of 80 DEG C-90 DEG C, wherein the amount of the hot water is twice of phosphor content in crude oil, and stirring for 15 minutes at a speed of 30 revolutions/minute; adding a perlite filter aid which accounts for 1% of the total weight of the crude oil, and filtering to obtain finished product rapeseed oil which is full-bodied in flavor. The production method disclosed by the invention has the advantages of being simple in process and strong in controllability, can be used for effectively controlling the eligibility of oil products; the obtained finished product oil has very full-bodied rapeseed oil flavor.