142 results about "Oxygen supplementation" patented technology

A anti-snoring and anti-obstructive sleep apnea apparatus has a plate or metal frame tongue shelf splint to prevent the flaccid tongue falling back, a palate shelf splint projection to elevate the soft palate and prevents its vibration, incisors teeth receptacles or pockets sockets for jaw displacer to hold the mandible moved forwards, and to prevent it falling back held between the bite block, catheter-tubing to administer oxygen supplementation from the external source which reduces air turbulence and promotes nasal breathing, a submental suprahyoid muscle stimulator placed below the tongue, and above the mucous membrane. An injection port is provided to administer any therapeutic agents and local anesthetics to reduce the sensitivity of the tongue and oral cavity mucus membrane lining to the foreign objects. This device is used to deliver therapeutic agents to prevent and to treat halitosis and various diseases.

An on-line respirometer and method for using the same is disclosed for determining the oxygen uptake of respiring samples. An overflow drain in the side portion of an enclosed reaction vessel is located to define an operational volume of slurry sample and headspace gases. The slurry sample is agitated using a mixer and/or a pump which recirculates the headspace gases through the slurry. Oxygen probes inserted into the headspace and the slurry sample determine the level of dissolved oxygen within the slurry sample and the headspace. The fixed ratio of available oxygen to oxygen demand is sufficient to measure the oxygen uptake directly, without the need for oxygen supplementation, for simple, fast and accurate analysis.

The invention discloses an oxygenating device for a station boiler and water supply and an oxygenating method thereof. The oxygenating device comprises an oxygen content measurement module, an oxygen supply and an oxygen flow regulation module, wherein, the oxygen content measurement module is used for measuring the dissolved oxygen content of condensed water at an entrance of a pump package of a condensed water pump for a station boiler; the oxygen supply is used for supplying oxygen required by oxygen supplementation; and the oxygen flow regulation module is connected with the oxygen supply, can be inserted into the entrance of the pump package of a condensed water pump, and is used for controlling the flow oxygenating to condensed water according to the dissolved oxygen content output by the oxygen content measurement module. The method and the device are used in the mode of water supply weak oxidizing treatment (or AVT(O)) of a high parameter machine set of a station so as to supply, regulate and control the dissolved oxygen of the condensed water and economizer supply water, which is in accordance with the requirements of weak oxidizing treatment. By the regulation and the design of oxygenating points and flow, the invention simplifies a system, increases the safe reliability of the system, stabilizes the oxygenation differential pressure and simplifies control.

The invention discloses an oxygen-fluorine liposome microbubble therapeutic agent which consists of microbubbles, and oxygen and at least one perfluocarbon existing in the microbubbles, wherein the gas nucleus takes oxygen as a principle component and takes perfluocarbon as an auxiliary component, and the microbubble mainly consists of phospholipid and polyethylene glycol derivative. According to the oxygen-fluorine liposome microbubble therapeutic agent, oxygen can be controlled to be released in a human body through veins delivery and targeted hypoxia tissue under ultrasound wave irradiation, the hypoxia disease is treated, and the therapeutic agent serves as a contrast agent used for ultrasonic enhanced imaging. Therefore, the microbubble is a developing agent and an oxygenating therapeutic agent.

The invention belongs to the technical field of germination accelerating treatment and specifically relates to a complete nutrition formula germination accelerating method for tobacco seeds. The method comprises the following steps: putting tobacco seeds in a nutrient solution of MS+100 mg / L gibberellin + 2 mg / L naphthylacetic acid and accelerating germination for 42-46 h under conditions of a temperature of 26-28 DEG C, 12 h illumination / 12 h dark and continuous air feeding for oxygen supplementation; taking the seeds out of a germination accelerating pot, when most of the seeds have broken seed coats, and drying; carrying out coating and pelleting according to a routine technology to obtain the required germination accelerating-type pelleted tobacco seed. The germination accelerating-type pelleted tobacco seed prepared by the invention has advantages of high seed activity, fast sprouting, high rate of emergence and high uniformity, etc.

The invention relates to a lotus-root-shaped eutrophic sediment remediation system capable of aeration. The system comprises a wind energy aeration body, an universal rotatory connection aeration body, a plant floating body, a lotus-root-shaped matrix body and a nitrobacteria reinforcement body which are successively in connection from top to bottom, and the plant floating body and the lotus-root-shaped matrix body are connected via a pulling rope. According to the invention, the oxygen supplementation effects of the wind energy aeration body and the universal rotary connection aeration body realize regeneration and utilization of biological zeolite and a biological ceramic ring; the system can effectively remove organic pollutants and nutritive salts in a sediment-water interface, and specifically has significant removal efficiency to nitrogen pollutants; meanwhile, through the harvesting of aquatic plants, applicability of pollutants to the eutrophic sediments with high content of the nitrogen pollutants is realized.

The invention discloses an oxygen-supplementation-type fume gas circulation combustion device which comprises a combustion chamber (1), an air blower (2) and a fume gas induced draft fan (3). The air blower (2) and the fume gas induced draft fan (3) are respectively connected with the combustion chamber (1) through pipelines; an air inlet of the air blower (2) is connected with a fresh air valve (22) through an air inlet pipeline; a fume outlet of the fume gas induced draft fan (3) is connected with a fume discharge air valve (32) through a fume discharging pipeline (31); the fume discharging pipeline (31) is communicated with the air inlet pipeline (21) through the fume gas circulation pipeline (32), and the air inlet pipeline (21) is connected with an output end of the oxygen supplying device (4). The oxygen-supplementation-type fume gas circulation combustion device can be used for sufficiently and circularly utilizing heat in fume gas for combustion, and has the advantages of less fume gas discharge, less discharged waste heat and nitrogen oxide, and energy conservation and is environmentally-friendly.

The invention discloses a live fish transportation vehicle device, system and achieving method based on narrowband internet-of-things. The device and system comprise a detection and control device, an extended display screen, a live fish transportation box, a water circulation system and a liquid oxygen tank. Narrowband internet-of-things communication technology and cloud platform technology are used to guarantee the timely feedback of real-time monitoring data and precaution conditions. Two oxygen supply plans including the basic dissolved oxygen supplementation and emergency oxygen supply are used. Four caution notification including the detection control device, extended display, mobile phone tips and cloud platform precaution are used. Three levels of interactive responses including equipment automatic control, driver and passenger confirmation and cloud platform on-duty personnel verification are used. Multi-directional detection and multi-level precaution and response can guarantee the survival rate of live fish in the transportation process, reduce the oxygen waste and loss caused by live fish death. The live fish transportation vehicle device, system and achieving method based on narrowband internet-of-things has the advantages of being convenient in achievement of technology. An ordinary transportation vehicle can be used as a live fish transportation vehicle after internal upgrade and modification. The technical prospect is wide.

The invention discloses a harmless sterilization, purification and oxygen supplementation system and method. The system comprises a terminal and an oxygen gas source, wherein the oxygen gas source is connected to the terminal through an oxygen gas pipeline; the terminal comprises a controller and a filtering sterilization part, wherein the controller is connected to the filtering sterilization part, and the filtering sterilization part is controlled by the controller and comprises a first pneumatic valve, a first air cylinder box, a first oxygen supply valve, a second oxygen supply valve, a second air cylinder box, a second pneumatic valve, a first filtering part, a second filtering part, a first air cylinder, a second air cylinder, a filtering chamber and a centrifugal fan. According to the harmless sterilization, purification and oxygen supplementation system and method, air can be sterilized harmlessly when purified, oxygen can be supplemented in real time according to the oxygen content in a room, and the content of oxygen gas in the room environment can be always kept between 21% and 22%.

The invention discloses a police highland micro-pressure equalizing compartment. The police highland micro-pressure equalizing compartment comprises a flexible compartment body, the flexible compartment body is inflated in use and deflated out of use, the floor area is small, storage and transportation are facilitated, and the equalizing compartment is easily used in an army and other places. The police highland micro-pressure equalizing compartment is provided with an oxygen making device and a pressure boosting device, oxygen making is combined with pressure boosting, breakthrough of pressure and oxygen double supply to a highland area is achieved, the treatment effect of a large medical oxygen chamber is achieved, and the body health and life safety of police officers and soldiers are ensured. The police highland micro-pressure equalizing compartment is further provided with an oxygen concentration detection system and a fresh air system, wherein the concentration of oxygen in the compartment can be monitored in real time, so that the oxygen is maintained within a stable range, sufficient oxygen is ensured, the oxygen supplementation effect is good, the oxygen concentration cannot exceed the standard, the human body is kept in an optimal oxygen uptake state, and excessive oxygen uptake cannot be caused; a fresh air circular flow field is formed inside and outside the compartment, air in the compartment is continuously supplemented and refreshed, the air replacement rate is ensured, the air in the compartment is prevented from staling, and the concentration of carbon dioxide and the like is prevented from being too high; because the fresh air system is formed, the cleanliness of the air in the compartment is ensured, and convenience is brought to use and recuperation of a patient.

An exhaust treatment apparatus and method for providing a controlled and well-timed feeding of supplemental oxygen to offset low oxygen content in exhaust flow passing over a desorbing hydrocarbon trap that previously accumulated hydrocarbons during a cold start cycle. Included is an ambient air injection system and associated control unit to offset the lacking oxygen level upstream of a reaction area for a downstream uf-HCT (preferably catalyzed with TWC material) with the exhaust placed in a lean state upon contact with the uf-HCT. An air injection embodiment makes use of preexisting vehicle components as to provide for a minimization of added components to a vehicle, while still addressing the need to clean-up exhaust emissions in an effort to satisfy stringent emission control requirements, such as those set forth in LEVIII.

A dual-mixture dual-oxygen-supplementation combustor with a positioning ignition and flame stabilizing structure comprises a liquid bearing plate, a cooker support and an inner/outer ring flame cover, wherein the outer side of the top of the inner ring flame cover is provided with a protruding edge, the outer ring flame cover is arranged on an upper gas mixing plate, a lower gas mixing cavity is further arranged at the bottom of the upper gas mixing plate, and the upper gas mixing plate is provided with a first oxygen-supplementation channel. A second oxygen-supplementation channel is arranged on the outer side of the inner ring flame cover. Optimization is performed by combining with the respectively advantages and shortcomings of side ignition and upper ignition, so that the flame cover meet the efficient ignition rate, and the combustion performance of an ignition hole is not also influenced. In addition, the protruding edge convenient to machine is further added at a thermocouple flame stabilizing hole, so that the gas outlet speed of the flame stabilizing hole is reduced, and accordingly floating flames are not likely to produce. The dual oxygen-supplementation channels can supplement oxygen and can also reduce the internal temperature of the combustor and a cooker product through air flowing, and accordingly the high-temperature environment of internal parts is improved.

The invention discloses internal-circulation-air-demisting safety goggles and a circulating air supply device thereof. The internal-circulation-air-demisting safety goggles are composed of circulating-oxygen-supply demisting goggles, a goggle air inlet pipe, a circulating air supply device and a goggle air outlet pipe. Air in the goggles can be better circulated by employing the circulating air supply device, and eyeglasses are demisted by using circulating air; due to an arranged recirculating blower, a circulating-oxygen-supply negative-pressure chamber generates negative pressure to achieveair internal-circulation of the goggles, fresh air can be better supplemented from an oxygen supplementation isolating hole to improve air quality of the safety goggles; and the problem that mist isgenerated when medical personnel employ medical safety goggles during fine work such as surgical operation and intravascular injection is better solved, meanwhile, an air environment of eye regions when the medical personnel employ the safety goggles is better improved, and trying feeling of eyes is relieved.

The invention provides a device and method for treating VOCs waste gas through activated carbon adsorption and high-temperature desorption-catalytic oxidation. By limiting the input of fresh air, desorption gas circularly perform desorption on an adsorption bed, and the oxygen content of the desorption gas is gradually reduced along with a VOCs oxidation reaction, so that the desorption temperature of the adsorption bed is increased, and finally, the high desorption efficiency is achieved. The device comprises a pretreatment device, adsorption beds, an adsorption fan and a chimney which are sequentially arranged according to an adsorption sequence; the device further comprises a plurality of adsorption beds, a heater, a catalytic oxidation device, a cooling device and a desorption fan, the adsorption beds, the heater, the catalytic oxidation device, the cooling device and the desorption fan are arranged according to a desorption sequence, a nitrogen purging device and an oxygen supplementing device are arranged between the adsorption beds and the catalytic oxidation device, an oxygen content meter is arranged at an outlet of the catalytic oxidation device; an oxidation unit comprises the plurality of adsorption beds; when one of the adsorption beds is subjected to desorption operation, the other adsorption beds are subjected to adsorption operation. The device is simple to operate and control, low in operation cost and capable of realizing a high desorption effect at low cost.

The invention discloses an automobile cockpit oxygen adjusting system which comprises an in-automobile oxygen concentration sensor, an electronic air pressure gauge, a blood oxygen detector, a vehicle-mounted computer, a CAN line controller, an electronic display module, a man-machine interaction module and an oxygen generation execution module. The oxygen concentration in the cockpit is detected in real time through the oxygen concentration sensor and the electronic air pressure gauge, the oxygen partial pressure value of the cockpit is calculated, and the oxygen partial pressure value directly influences the oxyhemoglobin saturation in a driver and passengers in the automobile. In-vehicle oxygen partial pressure value detection data are compared through the CAN line controller and the vehicle-mounted computer, and a comparison result is output to the in-vehicle electronic display module, so that the driver in the automobile is helped to judge whether the driver is in an oxygen deficit or fatigue driving state at present. And meanwhile, the system sends out a warning signal and reminds the driver to carry out oxygen supplementation operation. According to the automobile cockpit oxygen adjusting system, a solution for interaction between personnel in the cockpit and an automobile machine is provided, physical and psychological health of drivers and passengers can be maintained, and safe driving is ensured.

The invention discloses a haze preventing and oxygen supplying mask. The mask comprises a mask body; a filter device is arranged in the mask body; the mask body is connected with an oxygen supplying slow-release device through an oxygen delivery pipe; the oxygen supplying slow-release device comprises a box body; an oxygen delivery pipe through hole is formed in the box body; a water storage chamber and a reaction reagent chamber are arranged in the box body; an air hole is formed in the water storage chamber; one end of the oxygen delivery pipe is detachably connected with the mask body; the other end of the oxygen delivery pipe penetrates through the oxygen delivery pipe through hole in the box body to be detachably connected with the air hole of the water storage chamber; the reaction reagent chamber is located above the water storage chamber; a discharging port is formed in the reaction reagent chamber; a feeding port opposite to the discharging port is formed in the water storage chamber; and an electric control gate valve is arranged between the discharging port and the feeding port. The mask is simple in structure and convenient to use, can release oxygen slowly while effectively realizing the haze preventing effect, and is applicable to crowds having outdoor activities in regions having the relatively poor air quality in life as well as crowds requiring oxygen supplementation.

The invention discloses a vehicle-mounted oxygen supplementation system and method based on molecular sieve adsorption. The vehicle-mounted oxygen supplementation system comprises an engine, an oxygensupplying device and an oxygen preparation device used for preparing oxygen with a certain concentration, the output end of the oxygen preparation device is connected with the input end of the oxygensupplying device, the output end of the oxygen supplying device is divided into two paths, one of the paths is connected into a vehicle, and the other path is connected into the engine; and further,the vehicle-mounted oxygen supplementation system further comprises a controller and a detecting device, the detecting device comprises a first oxygen concentration sensor for detecting the oxygen concentration in the vehicle, a second oxygen concentration sensor for detecting the oxygen concentration in the engine, and a pressure sensor for detecting the external atmospheric pressure, and the controller is in signal connection with the first oxygen concentration sensor, the second oxygen concentration sensor and the pressure sensor. The oxygen is simultaneously supplied into the vehicle and the engine, and the problems of personnel oxygen-supplying and engine oxygen-supplying during vehicle traveling in a plateau area are solved.

The invention discloses a power station boiler and water-supply oxygen supplementing device and method thereof. The water-supply oxygen supplementing device comprises an oxygen content measuring module, an oxygen source and an oxygen flow regulating module, wherein the oxygen content measuring module is used for measuring the dissolved oxygen content of condensation water positioned on an outlet of a condensation water pump set of the power station boiler; the oxygen source is used for supplying oxygen needed by oxygen supplementation; and the oxygen flow regulating module is connected with the oxygen source, can be connected with an inlet of the condensation water pump set, and is used for controlling the oxygen supplementing flow of the condensation water according to the dissolved oxygen content output by the oxygen content measuring module. The condensation water constant-pressure oxygen supplementing device and method of the power station boiler are used for a water-supply weak oxidation treatment mode of a high-parameter set of a power plant and supplementing, regulating and controlling the dissolved oxygen of the condensation water and economizer supplying water and accords with the requirements for weak oxidation treatment (WOT). The invention simplifies a system and enhances the safety and the reliability of the system through oxygen supplementing point and flow regulation design, stabilizes the oxygen supplementing pressure difference, and simplifies the control.

The invention discloses a movable air conditioner and a control method thereof, and belongs to the technical field of intelligent air conditioners. The air conditioner comprises a semiconductor temperature regulator, a heat storage device, an oxygen-making device, a detecting device and a controller; the detecting device is used for detecting oxygen parameters of sampling points in at least two different positions of the environment where the air conditioner is located; and the controller is used for performing oxygen supplementation operation in each sampling position, where the oxygen parameters do not meet the preset oxygen requirements, of the sampling points in the at least two different positions. According to the movable air conditioner, the semiconductor temperature regulator is used as a temperature regulation component, excessive noises cannot be produced during temperature regulation, and thus the relatively good use experience is brought to users; the controller can performfocused oxygen supplementation in the positions which do not meet the oxygen requirements according to the oxygen parameters of the multiple sampling points, so that targeted oxygen supplementation operation can be performed in the indoor positions having the relatively low oxygen content, and the body comfort of the users located in the indoor environment for a long time is guaranteed effectively.

The invention relates to an air purifying, disinfecting, oxygen supplementing and humidifying all-in-one machine which comprises a casing; a first partition board and a second partition board are arranged in the casing; a humidifying and disinfecting device is arranged on the first partition board; an oxygenerator is arranged below the second partition board and comprises an air intake device anda molecular sieve integrating tower; the molecular sieve integrating tower comprises an integrated tower body; the integrated tower body integrates an adsorption tower A, an adsorption tower B and anoxygen storage tank; an upper end cover is arranged on the top of the integrated tower body; a lower end cover is arranged at the bottom of the integrated tower body; a first air pipe, a second air pipe and a third air pipe are arranged on the upper end cover; and a fourth air pipe, a fifth air pipe and a sixth air pipe are arranged on the lower end cover. The air purifying, disinfecting, oxygen supplementing and humidifying all-in-one machine integrates oxygen generation, disinfection and humidification into one casing and reduces the size; part of indoor air enters an air purifying and disinfecting electric field via an exhaust fan, the other part of indoor air enters the oxygenerator to separate oxygen and then is fed to the exhaust fan, and the mixed gas passes through a humidifying water curtain to enter indoors, so that the effects of increasing the oxygen content, sterilizing and disinfecting the air, and humidifying the air are realized.

The present invention discloses a fault monitoring method and a system for an aquaculture monitoring system. A plurality of adjacent fish ponds are set as a cluster, and all fish ponds in the same cluster are provided with a plurality of dissolved oxygen information acquisition devices. The corresponding relationship among all clusters, fish ponds and dissolved oxygen information acquisition devices is stored. When the dissolved oxygen data of one dissolved oxygen information acquisition device are lost, a cluster corresponding to the above dissolved oxygen information acquisition device is determined based on the above corresponding relationship. According to the dissolved oxygen data of other dissolved oxygen information acquisition devices in corresponding clusters, the dissolved oxygen data of the current data-lost dissolved oxygen information acquisition device are derived. According to the derived dissolved oxygen data, the oxygen supplementation control of a fish pond corresponding to the data-lost dissolved oxygen information acquisition device is conducted. In this way, even when the dissolved oxygen information acquisition device of one fish pond breaks down, the normal oxygen supplementation control f the fish pond is not influenced at all. Therefore, the dissolved oxygen amount of the fish pond is always maintained within a safe range, so that the safety and the reliability of the entire monitoring system are improved.

The invention relates to an efficient, clean combustion and low-exhaust gasifying heating stove which is characterized in that an energy heating aggregation effect principle and an oxygen deficient combustion technique are applied, an oxygen supplementation and combustion supporting system for the stove to produce high-pressure and high-temperature airflows is designed, a gas storage bin is provided for a heat value increase, a second multifunctional semi-closed type combustion chamber is provided, and a spiral seam oxygen supplementation manner as well as a wallboard type fire channel and a water channel parallel and paratactic heat exchange structure are adopted. The implementation scheme is as follows: a sphere inside a first combustion chamber is in a cambered-surface shape, an energy heating aggregation effect is realized, and a constant high-temperature region is formed; the first combustion chamber under the second combustion chamber implements oxygen deficient combustion, so that fuel is gasified and tar is converted into combustible gases to enter the second combustion chamber; and high-temperature air in the gas storage bin is cut into the second combustion chamber from spiral seams in the inner wall, entrainment type dynamic oxygen supplementation is performed, so that efficient clean combustion is realized, and flames are transparent and blue. The efficient, clean combustion and low-exhaust gasifying heating stove has the benefits as follows: the heating stove is applicable to bituminous coal, carbon, inferior coal, the burn-off rate of the fuel is above 99%, the heating stove is still in a gas combustion state after the fire is banked, an effect that no visible smoke is exhaust is realized, and the heating stove belongs to green upgrading products.

The invention discloses a mixed culture method of rice, lotus roots and fishes and shrimps. The method comprises the following steps of: (1) applying base fertilizer; (2) planting the lotus roots; (3)growing the rice; (3) releasing the shrimps; (4) releasing the fishes; (5) putting bait; and (6) performing topdressing. According to the mixed culture method of the rice, lotus roots and fishes andshrimps, a required growth environment of the lotus roots and fishes and shrimps is utilized fully, the soil can be loosened when the shrimps crawl, and since the fishes like digging mud for food, sothat formation of viscous and moderately loose soil and mud which are suitable for the growth of the lotus roots is facilitated when mixed cultivation is conducted; meanwhile, since air breathing is needed for the growth of the lotus roots, enough-content oxygen supplementation for the fishes and shrimps and the air breathing requirement can be achieved at the same time by means of transmission through holes in the lotus roots; farming of the fishes and shrimps and the growth of the lotus roots complement each other, and acidic fertilizer rich in organic matter is applied to the soil cooperatively, so that the lotus roots have stout and strong rhizomes, thick lotus root pulp, a thick and solid lotus root shape and high quality; in addition, floating-body rice is put in a pool of the lotusroots, so that the pool of the lotus roots is utilized fully.

The invention belongs to ignition system range, and particularly relates to a method for assisting in igniting low-volatile coal in burning by adding oxygen. Firstly, an existing low-volatile oxygen supplementation tiny-oil ignition burner is used, three stages of burning chambers are arranged in a shell, all igniting chambers and flame guiding tubes are controlled to be axially inclined towards the primary burning chamber by the same included angle of 60 degrees, and all oxygen supplementation tubes are controlled to be axially inclined towards the primary burning chamber by the same included angle of 75-80 degrees. Secondly, oxygen-enriched airflow enters the middle rear of the primary burning chamber obliquely along the oxygen supplementation tubes, burning of low-volatile pulverized coal is promoted, coal adaptability of tiny-oil ignition is enhanced, oil flames are stabilized, disturbed heating of coal stream in the primary burning chamber is increased, and burning is optimized. The oxygen supplementation tubes supplement oxygen to the middle rear of the primary burning chamber, burning is accelerated, burning of the low-volatile pulverized coal is enhanced and stabilized, coal adaptability of tiny-oil ignition is further enhanced, and the requirements of a boiler burning the low-volatile coal on tiny-oil ignition and low-load stable burning are met.

The invention belongs to the technical field of agricultural hydroponics, and particularly provides a hydroponic method of saccharum officinarum. The hydroponic method of saccharum officinarum comprises the following steps that 1, a nutrient solution is prepared and placed into a hydroponic box; 2, disease-free seedlings are selected and planted into planting holes; 3, different nutrient solutionsand different irrigation frequencies are selected according to different growing periods; 4, oxygen supply management is carried out. The hydroponic method of saccharum officinarum has the advantagesthat hydroponics, spraying, oxygen supplementation and the like are combined, not only can the growth requirements in the seedling stage of saccharum officinarum for water, oxygen and nutrients be satisfied, but also it can be ensured that saccharum officinarum roots are soaked in the nutrient solution for a long time to ensure the good growth and development of plant root systems; the hydroponicbox can conduct hydroponics on multiple plants simultaneously, thereby ensuring the consistency of the growing environment of the plants; through regular and quantitative oxygen supply, circulating liquid supply and nutrient liquid formula adjustment, the natural growing conditions can be simulated and the nutrition supply is optimized, the good growth of the plants is facilitated, and the reliability of experimental results is improved.