46 results about "Plant collection" patented technology

The invention discloses a method and device for treating and maintaining a black and odorous water body by inoculating with activated sludge, and belongs to the technical field of water environment control. According to the method and device for treating and maintaining the black and odorous water body by inoculating with the activated sludge, the black and odorous water body is treated synchronously by ''inoculating with the activated sludge and planting floating plants'', the amount of active microorganisms with degradability in the water body is increased, the removal effect of organic pollutants in the water body is improved and the nutrient pollution ammonia nitrogen concentration is reduced; and the device for treating and maintaining the black and odorous water body is a workboat which integrates the functions of activated sludge addition, sediment collection, ventilation and oxygenation, mixing of sludge and water, floating plant collection and transmission, compression and dehydration and the like, conducts in-situ control and remediation without destructive work on the water ecology, and has broad application prospects in the field of black and odorous water body control.

The invention discloses a kitchen waste collaborative processing method mainly comprising the steps of pretreatment, regulation pulping, anaerobic fermentation, biogas utilization and biogas residue processing. With the kitchen waste collaborative processing method provided by the invention, favorable conditions in a waste incineration power plant are sufficiently utilized. Waste incineration power plant waste hot steam is adopted as a heat source for high-temperature fermentation, such that energy consumption and processing cost are reduced. Sundries produced in the pretreatment step and biogas residue produced in the biogas residue processing step are subjected to an incineration treatment in the waste incineration power plant, such that waste is effectively utilized, and investment cost is reduced. In addition, through purification, biogas is prepared into CNG vehicle fuel which is provided for waste incineration power plant collection and transportation vehicles, such that biogas resource utilization efficiency is improved, circulation links are reduced, and fossil energy utilization is reduced. The kitchen waste collaborative processing method provided by the invention is energy-saving and environment-friendly. The method has high resource utilization rate, low energy consumption, and low processing cost.

The invention provides novel methods for liquid-mediated delivery of pollen grains to enclosed stigmas in recipient female flowers. For example, methods for liquid-mediated pollination are provided. The methods provided include collecting pollen from a donor plant, suspending the collected pollen in a liquid solution, and introducing said solution to an enclosed stigma of a recipient flower bud on a recipient plant, thereby pollinating the flower with the pollen from the donor plant.

The invention provides a submerged plant collection clamp capable of determining a sampling quadrat area. The submerged plant collection clamp is suitable for collecting a lakebed submerged plant sample. The submerged plant collection clamp comprises two mutually-symmetrical bending clamps capable of being freely opened and closed, wherein each bending clamp comprises clamp teeth, a connecting rod, a force bearing plate and a handle from the bottom to top, and the submerged plant collection clamp can be controlled by a spiral iron core on the inner side of each force bearing plate to be opened or closed. Cutting wires fixed on the bottoms of the clamp teeth are used for separating button mud inside and outside a quadrat and at the bottom of a plant. The submerged plant collection clamp has the advantages of simple structure, convenience in operation, controllable quadrat area, and capability of ensuring the integrity of the plant.

The invention belongs to the field of submerged plant collection and particularly relates to a submerged plant collection device and a submerged plant collection method. The submerged plant collection device comprises a hollow iron pipe, a screw rod and a rotary cutting sampling head, wherein the lower end of the hollow iron pipe can be in thread connection with the upper end of a connection rod I of the rotary cutting sampling head; a cutting blade is fixed at the lower end of the connection rod I of the rotary cutting sampling head; a clamping ring is fixedly arranged on an inner wall of the upper part of the hollow iron pipe in the peripheral direction; the lower part of the screw rod stretches in from an opening formed in the upper part of the hollow iron pipe; a handle is fixedly arranged at the upper end part of the screw rod; a spiral sleeve matched with the screw rod sleeves the screw rod; and the spiral sleeve is located in the hollow iron pipe and clamping teeth capable of being engaged with the clamping ring are arranged on the lower end face of the spiral sleeve. The rotary cutting sampling head is suitable for collecting relatively long large-size submerged plants; and the collection device is further provided with a grasping type collection head and a corresponding control structure, and is suitable for collecting small-size submerged plants. The device and the method, provided by the invention, have the advantages of wide applicability, accuracy and convenience for sampling and the like.

The present invention provides a novel method of delivering pollen grains onto closed stigma in a recipient female flower by liquid mediation. For example, methods of liquid-mediated pollination are provided. The provided method comprises collecting pollen from a donor plant, suspending the collected pollen in a liquid solution, and introducing the solution onto a closed stigma of a recipient flower bud on a recipient plant, thereby pollinating a flower with pollen from the donor plant.

The invention relates to a method for promoting plant growth. The method comprises the following steps: constructing a plant expression vector comprising FTO or other homologous demethylated protease gene; converting the plant expression vector into acceptor bacteria; converting the acceptor bacteria into target plants; culturing the obtained target plants, collecting and culturing the T0 generation seeds, screening positive plants from the seedlings; culturing the screened positive plants, after the growth of the seedlings, collecting the T1 generation seeds; culturing the T1 generation seeds, choosing positive plants from the seedlings; culturing the selected positive plants, after the growth of the seedlings, collecting the T2 generation seeds; culturing the T2 generation seeds, screening homozygous strain lines from the seedlings; and culturing the T1 generation seeds of the plants of the T2 generation homozygous strain lines so as to obtain the target plants. An exogenous gene that can modulate the RNA methylation modification of m6A in a cell is introduced into a plant through a transgene technology so as to modulate the m6A on the RNA of a plant in order to promote the plant growth.

The invention belongs to the technical field of new energy grid-connected power generation technology, in particular to a large-scale photovoltaic power station's collection system fault location method. The method, based on the control of the inverter in an actual photovoltaic power plant, through the utilization of the characteristics of a photovoltaic power generation unit of not outputting negative sequence current under an asymmetrical voltage condition and the combination of the node negative sequence voltage equation corresponding to the sparse measurement point after an asymmetric fault occurs in the photovoltaic power station's collection system and the compression perception theory, and through the assistance of an improved Bayesian compression perceptual reconstruction algorithm, solves the node negative sequence injection current vector to locate a fault. Of all node negative sequence injection current amplitude vectors in a data window, the nodes corresponding to the largest element and appear at the most frequency are regarded as problematic ones. According to the invention, all the method requires is the non-synchronized measurement information of sparse measurement spots. And the method is free of impacts of fault types and transitional resistors. Due to its strong ability to combat noise and its high precision, the method can be practically used to meet the application requirement of large scale photovoltaic power stations.

The invention discloses a method for restoring understory vegetation and constructing a Lingnan indigenous ground-cover landscape from garden waste and indigenous plants. The method comprises the following steps: collection and treatment of garden waste, fermentation of the garden waste, plant variety selection, plant collection, plant pretreatment, mixing of plants and substrates into substrate blocks, and understory planting of the plants. According to the invention, a low-cost high-efficiency understory indigenous vegetation landscape is constructed on the basis of the preprocessed garden waste in combination with the screened-out favorable indigenous plants.

The invention provides a real-time simulation method and device for an electromagnetic transient state of a wind power plant. An equivalent impedance value of a wind turbine generator system is determined based on an electromagnetic transient characteristic curve of a wind power plant; equivalent construction of a wind power plant equivalent model is carried out on the wind turbine generator system by using the equivalent impedance value; and electromagnetic transient state simulation is carried out on the wind power plant based on the wind power plant equivalent model. The method and device are easy to implement. The simulation precision is improved and the simulation time is shortened; and a problem of alternating-current convergence line coupling during the modeling and simulation process of the wind power plant is solved. The established wind power plant equivalent model enables the wind power plant to be equivalent to a few of limited wind turbine generator systems, so that the actual model of the wind power plant is simplified substantially; the simulation of the super-large-scale wind power plant or the wind power plant collection system is realized; and the real-time simulation capability of the wind power plant is improved substantially.

The invention discloses a method and device for treating and maintaining a black and odorous water body by inoculating with activated sludge, and belongs to the technical field of water environment control. According to the method and device for treating and maintaining the black and odorous water body by inoculating with the activated sludge, the black and odorous water body is treated synchronously by ''inoculating with the activated sludge and planting floating plants'', the amount of active microorganisms with degradability in the water body is increased, the removal effect of organic pollutants in the water body is improved and the nutrient pollution ammonia nitrogen concentration is reduced; and the device for treating and maintaining the black and odorous water body is a workboat which integrates the functions of activated sludge addition, sediment collection, ventilation and oxygenation, mixing of sludge and water, floating plant collection and transmission, compression and dehydration and the like, conducts in-situ control and remediation without destructive work on the water ecology, and has broad application prospects in the field of black and odorous water body control.

The invention belongs to the field of submerged plant collection and particularly relates to a submerged plant collection device and a submerged plant collection method. The submerged plant collection device comprises a hollow iron pipe, a screw rod and a rotary cutting sampling head, wherein the lower end of the hollow iron pipe can be in thread connection with the upper end of a connection rod I of the rotary cutting sampling head; a cutting blade is fixed at the lower end of the connection rod I of the rotary cutting sampling head; a clamping ring is fixedly arranged on an inner wall of the upper part of the hollow iron pipe in the peripheral direction; the lower part of the screw rod stretches in from an opening formed in the upper part of the hollow iron pipe; a handle is fixedly arranged at the upper end part of the screw rod; a spiral sleeve matched with the screw rod sleeves the screw rod; and the spiral sleeve is located in the hollow iron pipe and clamping teeth capable of being engaged with the clamping ring are arranged on the lower end face of the spiral sleeve. The rotary cutting sampling head is suitable for collecting relatively long large-size submerged plants; and the collection device is further provided with a grasping type collection head and a corresponding control structure, and is suitable for collecting small-size submerged plants. The device and the method, provided by the invention, have the advantages of wide applicability, accuracy and convenience for sampling and the like.

The invention discloses a cleaning vessel for removing duckweed and weeds from water, which includes a vessel body, a traveling device, and lawn mower. The cleaning vessel is characterized in that a capture net box is arranged below the vessel body, a temporary storage net box is arranged at the rear end of the vessel body, and the rear end of the capture net box communicates with the front end of the temporary storage net box; the capture net box consists of two middle vertical bars, two rear vertical bars, two side horizontal bars, a front horizontal bar and a mesh, the mesh is in a U shape and fixed to the middle vertical bars, the rear vertical bars, the side horizontal bars and the front horizontal bar, and a plurality of balancing weight blocks are fixed to the front horizontal bar at intervals; and a net lifting motor is fixed to the front end of the vessel body. According to the cleaning vessel, the capture net box collects the floating duckweed, fallen leaves, and cut emergent aquatic plants and submerged plants, the collected fallen leaves and aquatic plants pass the capture net box and enter the temporary storage net box at the rear end, workers salvage the fallen leaves and aquatic plants in the temporary storage net box to the vessel body, and the problem of eutrophication of water quality is solved.

The invention discloses a field plant collection and preservation device for plant morphology identification, which comprises: a U-shaped frame, a stepping pedal, a shielding plate, a fixing nut, a screw rod, a rotating grip plate, a connecting round seat, a fixing plate, an insertion rod, a connection Plate, gear column, water tank, water inlet, water pipe, power supply, control cabinet, external gear cylinder, annular positioning groove, embedded load ring, concave hole, embedded iron column, electromagnet, connecting rod, counterweight ring, first A rotating shaft, a second rotating shaft, a worm, a worm gear, a turning bar, a retaining column, a circular cavity, a rectangular bar, a rectangular groove, a water pump, a connecting sleeve, a water spray plate, a water spray hole and an interface. The advantage of the present invention is that it can be used for the soil collection of wild plants, through the setting of the screw rod and the fixed nut, and by rotating the rotating grip disc, the driving of multiple insertion rods can be realized, and the rotation of multiple insertion rods can be realized at the same time. Going down, the ground can be broken, and the soil around the wild plants can be broken, so that the wild plants can be lifted together with the soil.

An apparatus for removing dust and offensive odor generated from ascon includes: a centrifugal dust collection unit which forcibly sucks offensive odor-causing materials, harmful gas and dust generated from the ascon, produced in an ascon producing unit, via a pipe so as to discharge the dust having a relatively large particle size via a hopper provided at the lower end thereof to the outside by means of a rotary valve while conveying air and relatively fine dust to a filtration-type dust collection unit via a pipe provided at the upper side thereof; the filtration-type dust collection unit for filtering the offensive odor-causing materials, harmful gas and fine dust having passed through the centrifugal dust collection unit by means of a filter while discharging the remaining fine dust or the like to the outside by a screw provided at the lower end of the hopper; a first cooling unit for condensing the harmful gas and offensive odor-causing materials of 150° C., supplied from the filtration-type dust collection unit, by cooling the same to 40˜50° C. using a cooling tower and thus removing and separating the moisture and the offensive odor-causing materials; a second cooling unit for condensing the offensive odor-causing materials and harmful gas of 40˜50° C., having passed through the first cooling unit, by re-cooling the same to 20° C. or lower by a condenser and thus removing and separating the moisture and offensive odor-causing materials so as to prevent a white plume phenomenon; an adsorption unit for removing volatile organic compounds (VOCs) by adsorbing and filtering the offensive odor-causing materials and harmful gas of 20° C., having passed through the second cooling unit, using a active carbon filter; and a discharge unit configured such that spray pipes are provided therein in stages so as to remove water-soluble offensive odor-causing materials in the air, from which the volatile organic compounds (VOCs) have been removed via the adsorption unit, by spraying water via a plurality of spray nozzles provided at each of the spray pipes, and a discharge pipe is provided at the upper side thereof so as to discharge fresh air, wherein a turbo fan is provided between the filtration-type dust collection unit and the first cooling unit, and wherein an oil-water separation tank and a water collection tank are additionally provided between the first cooling unit and the second cooling unit such that the oil-water separation tank separates harmful oil and water from each other by discharging the cooled and condensed moisture and offensive odor-causing materials via pipes, and the water collection tank collects only water separated from the oil-water separation tank. The apparatus of the present invention can prevent environmental pollution by removing or minimizing the offensive odor and dust by a batch system, wherein air pollutants or any other harmful dust generated in the ascon producing unit is removed or minimized regardless of ducted emission and fugitive emission. Particularly, according to the offensive odor prevention plan, the step for mixing AP oil and heated aggregate and the step for loading the ascon onto a truck, which are considered to be the main steps for generating the offensive odor, are preformed when producing the ascon by using a new aggregate, while the AP oil vapor is condensed so as to be removed by the first cooling unit, and untreated materials are removed by the second cooling unit in consideration of the physical and chemical properties of the AP oil during re-generation of the waste ascon. Therefore, the apparatus of the present invention is mounted at the rear end of an existing asphalt plant collection facility such that the moisture which is evaporated in the step for drying the AP oil vapor and the aggregate is first condensed and collected, and the volatile organic compounds (VOCs) and the moisture are secondarily condensed and collected by the condenser, the untreated offensive odor-causing materials are collected in the adsorption unit and the discharge unit. Thus, effects of decreasing offensive odor and preventing a white plume phenomenon are exhibited.

The invention discloses a layered domain-partitioned anti-islanding protection method for large-scale wind power generation. The method includes the steps of: monitoring all breaker tripping signals in a wind power generation system; judging when cluster main station outgoing tie lines and a main transformer are all disconnected according to the breaker tripping signal of the cluster main station, and protecting an island formed due to disconnection of all the cluster main station outgoing tie lines and the main transformer; judging whether an island is formed due to a wind power plant collection bus fault according to the breaker tripping signal of the wind power plant collection bus, and protecting the island formed by the wind power plant collection bus fault; and judging whether an island is formed due to a wind power plant current collection feeder line fault according to the breaker tripping signal of a blower fan feeder line, and protecting the island formed by the wind power plant current collection feeder line fault. The layered domain-partitioned anti-islanding protection method for large-scale wind power generation realizes the advantages of being rapid, accurate, efficient, safe and stable.