There are several common application methods of tobacco pesticides, and the commonly used methods in agriculture are as follows:
1 spray, spray.
2 seed treatment, seed coating/dressing
Fumigation, using aerosol in closed space to benefit.
4 Soil disinfection/soil treatment
5 furrow application, used for granules
6 stitches, the number of circles.
Powder spraying, used for large aircraft operations in the forest or powder spraying in the field, is rarely used now.
Toxic soil is used to kill pests such as crickets on the surface.
9 ecstasy, mainly used to control corn borer with corn granules.
10 soil burial is used for some farmers with strong internal interests to control tree borers.
What are the common detoxification measures and methods? What are the more common ones? Prohibition of alcohol, drug adjuvant therapy and psychological intervention.
To really quit, many methods are to tell family members to detoxify their bodies first, and to use special drugs for excessive assistance when necessary, or to go to the hospital for treatment, and then adjust the treatment of addiction, so as to help their families better. They'd better leave the drug-related circle environment system to get rid of drugs. After quitting, relatives and friends pay attention to the supervision of urine test. Maybe they can quit, but it takes time and methods, step by step.
What are the common cutting methods? 1, softwood cutting.
Is to use semi-lignified branches for cutting. Generally suitable for evergreen plants and some deciduous plants or herbal flowers, such as rose, rhododendron, camellia, gardenia, chrysanthemum, safflower, rubber tree, tortoise shell bamboo and so on. The suitable time for softwood cutting is generally in rainy season, and the specific operation method varies with different plant species, but the general steps are the same.
Semi-lignified branches with strong growth and development, length of 6 ~ 10 cm (individual varieties can be 10 ~ 15 cm) and no diseases and pests are selected as cuttings, and the lower leaves are removed, leaving only a few upper leaves, and the base is cut into a wedge shape with a sharp blade. The cutting depth is 2 ~ 4cm. The plant spacing depends on the specific plant species, generally 3 ~ 5 CrN or 5 ~ 10 cm. Gently press the matrix by hand after insertion. After the cutting is completed, it should be watered and shaded with bamboo curtains. After that, the substrate is always moist, and it can take root and survive in 15 ~ 20 days.
2, hardwood cutting
Is to use completely lignified branches for cutting. This method is suitable for the propagation of woody plants, and the season is generally carried out in early spring.
Choose fully lignified branches with good growth and no pests and diseases as cuttings, the length is 15 ~ 20 cm, the upper incision is flat and the lower incision is inclined, generally leaving no leaves. The cutting depth is generally 1/2 ~ 2/3 of the cutting length, or only the terminal buds are exposed. Plant spacing is generally 20 ~ 25 cm or 25 ~ 30 cm. After insertion, gently press the solid soil and irrigate it with water. Generally, it is necessary to cover the film with moisture, and pay attention to timely irrigation. Generally, it can take root and survive about 1 month, and after 1.5 months, the film can be removed for routine management.
3. Blade cutting
Using the regeneration function of adventitious roots and buds of veins and petioles, a new individual is propagated with leaves as cuttings, which is called leaf cutting. Leaf-cutting method is generally carried out in greenhouse, and the required environmental conditions are the same as those of twig-cutting.
What are the common disinfection methods? Generally speaking, disinfection methods can be divided into physical methods and chemical methods. Physical methods mainly include heating, freezing, radiation, ultraviolet and microwave disinfection, and chemical methods use various chemicals for disinfection.
1. Physical disinfection mainly refers to the method of disinfection by sunlight and ultraviolet radiation. This disinfection method is simple and convenient, and no chemicals are needed. It is a green disinfection method and should be strongly advocated.
2. Chemical disinfection Chemical disinfection refers to the method of removing, killing and inactivating pathogenic microorganisms with chemical agents. Chemical disinfectants commonly used in chemical disinfection can be divided into the following categories according to their chemical structure and disinfection effect:
Alkalis: mainly including sodium hydroxide, quicklime, etc. Generally, it has a high disinfection effect, and is suitable for disinfection in humid and sunless environments, as well as for disinfection of drains, feces and urine, but it is corrosive to some extent and has a low price.
Oxidants: mainly hydrogen peroxide, potassium permanganate, hydrogen peroxide, etc.
Halogen: sodium fluoride has a strong bactericidal effect on fungi and spores. 1%~2% tincture of iodine is often used for disinfection of panels, and iodoglycerin is often used for disinfection of mucous membranes. The sensitivity of bacterial spores to iodine is 2 ~8 times that of propagules. There are also bleaching powder, tincture of iodine, chloramine and so on.
Alcohol: 75% alcohol is commonly used for disinfection of panels, tools, equipment and containers.
Phenols: phenol, fish fat, cresol, etc. The disinfection effect is high, but it is toxic and corrosive, polluting the environment and expensive.
Aldehydes: formaldehyde, glutaraldehyde, ethylene oxide, etc. , can disinfect excreta and metal utensils, and can also be used for fumigation of pens, which can sterilize and reduce toxins. With * * *, toxicity, long-term contact will cause cancer.
Surfactant: commonly used are bromogeramine, disinfectant and carbendazim, which are generally suitable for disinfection of panels, mucous membranes, surgical instruments and contaminated work clothes.
Quaternary ammonium salts: bromogeramine, domiphen and chlorhexidine, which are both surfactants and halogen disinfectants. Mainly used for disinfection of panels, mucous membranes, surgical instruments and contaminated work clothes.
reference data
Encyclopedia of China:: chinabaike. /
What are the common liposuction methods? At present, the main liposuction methods are electric method, syringe method, ultrasonic wave and vibration liposuction. Their respective liposuction processes are different. Let's take a concrete look at their respective liposuction processes.
1. Electrical method
Electrokinetic method is a common method to lose weight by negative pressure liposuction. Through a regional 5mm micro-incision, enough swelling liquid is injected to emulsify the fat, and then the fat is sucked out by negative pressure. This method is also called wet liposuction. Electric liposuction is a common method.
2. Injector liposuction method
The liposuction method of syringe is to suck out fat by using the negative pressure generated by syringe. Some doctors think that negative pressure liposuction is more harmful to the operating area, while syringe method is less harmful. But this is only a theory, and there is no direct evidence that the harm of negative pressure liposuction is far greater than that of syringe method.
3. Ultrasonic liposuction to lose weight
Ultrasonic liposuction selectively destroys adipose tissue without destroying blood vessels, nerves and panels in the tissue. After ultrasound, adipose tissue will become turbid liquid, which is easy to be sucked out, reducing the amount of bleeding and playing a good role in losing weight.
4.*** Vibration liposuction to lose weight
* * * The principle of vibrating liposuction to lose weight is to add a reciprocating machine to the handle of liposuction needle, so that the frequency of liposuction needle can reach 600 times per minute within the distance of 2-5 mm. * * * The advantages of vibrating liposuction are complete emulsification, the liposuction needle is not easy to get hot, blood vessels and nerves will not be damaged during treatment, and it is more minimally invasive, safer, more effective and more labor-saving.
Patients undergoing liposuction must consult a professional plastic surgeon, and through good preoperative communication, the ideal effect can be achieved. Also be careful not to overeat and not to go on a diet at will. Proper diet and exercise are long-term solutions to keep healthy and keep fit. If you have any other questions, just ask.
What are the common methods of stealing electricity? As a special commodity, electric energy has the characteristics of simultaneous production and use without tangible objects. In order to prevent unnecessary loss of electric energy in circulation, our power supply department should do a good job in all aspects of management, especially to prevent the blow of stealing electricity. Judging from many cases of stealing electricity, most of them started with metering devices. Because the metering box is hidden and difficult to be found, anti-theft personnel must be meticulous. The electric quantity measured by electric energy meter is determined by the product of voltage, current, power factor and time. Therefore, changing any one of the three factors may slow down, stop or even reverse the watt-hour meter.
First, the common ways of stealing electricity
1. 1 Change the current coil of the short-circuit metering device. Usually, the current coil is short-circuited with the wire inside or outside the electric energy meter. It is more common to insert wires or shunt resistors into the input and output terminals of the phase line of the electric energy meter to shunt the current. When a wire is short-circuited, the resistance of the wire is almost equal to zero, and most of the current will pass through the short-circuited wire, and there is almost no current in the current coil of the watt-hour meter, which will cause the watt-hour meter to stop running; If the resistance less than the resistance of the current coil is connected in parallel, the current coil and the parallel resistance form a parallel circuit. According to the shunt principle of parallel circuit, most of the current will pass through the parallel resistor, and only a small current will pass through the current coil, so that the watt-hour meter will rotate slowly according to a certain proportion, thus achieving the purpose of stealing electricity. This method of stealing electricity is called undercurrent method.
1.2 Disconnect the voltage link or connect the voltage divider resistor in series on the voltage coil.
Disconnecting the voltage coil means that the voltage coil loses voltage and the meter does not turn. The common method is to loosen the voltage connector of the watt-hour meter. This method does not need to open the meter seal, and is a low-level method of stealing electricity. The new common electric meter short-circuited the internal connections of the electric meter. Secondly, open the meter housing, connect a resistor in series with the voltage coil, and wrap the series resistor with insulating tape or insulating sleeve (with concealment). Its principle is voltage division, which distributes part of the voltage to both ends of the resistor, thus reducing the voltage at both ends of the voltage coil and achieving the purpose of less electricity counting. This method is also called undervoltage method to steal electricity.
1.3 Connect the zero fire line to steal electricity.
According to the internal circuit structure of the watt-hour meter, the input and output of the neutral terminal are shorted through the connector. Therefore, the thief can use his own (or another) zero line to use electricity, and the watt-hour meter stops running because there is no current loop in the opposite direction passing through the current coil of the watt-hour meter. This way of stealing electricity must be equipped with a switch control switch indoors, so that the zero line and the self-set ground line (or another zero line) of the electric energy meter can be controlled freely. However, the self-built ground wire will pose a serious threat to the safety of users.
1.4 Power failure and electricity theft.
This way of stealing electricity must disconnect the zero line at the incoming end of the watt-hour meter in advance and hide it. Similar to stealing electricity by connection, you need to connect another ground wire or set up your own ground wire and install a switch indoors. After disconnecting the input zero line of the electric meter, the current coil can still pass the current, while the voltage coil will lose the voltage. At this time, the electricity meter will not measure the electricity when the household steals electricity. When the thief wants to turn the electric meter, he can connect the zero potential from the zero line output end of the electric meter (that is, connect the zero line himself or set the ground line), and the voltage coil obtains the voltage to make the electric meter turn. Secondly, a resistor is connected in series on the wire connected to zero potential in reverse, which is similar to the undervoltage method and plays the role of less electricity calculation. This method is also called zero-breaking method. -
1.5 Replace the counter gear. The specific method is to replace the counter of large-capacity electric energy meter with the counter of small-capacity electric energy meter, and the electricity counted by the replaced electric energy meter is several times less than the actual electricity consumption. For example, replace the 10(20) amp 900r/kWh meter with a 5( 10) amp 1800r/kWh meter. Because the current coil and voltage coil of the watt-hour meter have not changed, and the rotating speed of the aluminum plate has not changed, the original 900-rpm watt-hour meter actually used electricity once after replacement. The key point of this way of stealing electricity is that the electric meter can only be interchanged with the electric meter of the same manufacturer, otherwise the mechanical size cannot correspond. The first step of stealing electricity in this way is to open the seal of the electric meter. The electricity meter seals used by the power supply department are all new seals, which have good anti-stealing efficiency.
1.6 Bypass the metering device to steal electricity. Stealing electricity by bypassing metering devices is mainly reflected in private connection to public lines. The biggest feature of this method is that it is simple to operate and easy to destroy the scene of stealing electricity. When the thief knows that there is an electricity test, he will tear the stealing wire hard in time, so that the electricity tester can't obtain evidence. Due to the high contact resistance of the private wire of the power thief, and the oxidation reaction with the air caused by * * * or the lax sealing of the insulating tape, the contact resistance is further increased, and under the thermal effect of current, there will be flashover, strand breakage or even disconnection. This kind of stealing electricity will bring a serious threat to the safe execution of power lines.
Second, check the electricity matters needing attention
2. 1 Know the production and operation status, load and power consumption, electrician's quality, etc. before checking electricity stealing. If the power suddenly drops, check carefully and never let go of any clues. When we want to check suspicious users, we must arrive at the installation site of the electric energy metering device as soon as possible and make a surprise inspection to prevent them from damaging the electricity stealing site.
2.2 When checking, carefully check whether the lead seal of the metering device is in good condition, whether the wiring of the metering device is correct, whether the execution state is consistent with the actual situation, and whether there is overheating and poor contact. , and pay special attention to the details of the inspection. The author once found a case of stealing electricity. The electricity thief uses high-voltage metering power supply, and the 10KV metering box is connected with the electricity meter box by cable. The thief short-circuited the current cable with a short-circuit ring, and then wrapped it with the same color tape. Although this method of stealing electricity is simple, it is often more difficult to detect because of its delicate technique.
2.3 Pay attention to check whether the configuration of metering device is consistent with the actual load of users, and replace it in time if there is any discrepancy. For example, when the primary current of current transformer is between 20% and 120% of the rated current, the proportion of excitation current is small and the measurement is more accurate. When the current transformer works above 120% of the rated current, the iron core is saturated and the excitation current is large, resulting in serious negative error and underestimating a lot of electricity. When the current transformer works below 20% of the rated current, there is a phenomenon of "big horse-drawn car", and when it works below 5%, there is a large negative error.
2.4 electricity inspectors should be patient when they go to the site for inspection. When we check the electricity consumption, we need the relevant personnel of the public utilities to be on site, especially the users of special transformers. Without the person in charge, we can't cut off the power supply at will for inspection, so as not to affect production. So some thieves learned that we were going to check the electricity, so they dodged first. At this time, we have to wait patiently. If we leave the scene, the thief will take the opportunity to destroy the scene of stealing electricity. We went back to check, and we couldn't find any evidence of stealing electricity.
2.5 Pay attention to the electricity inspection procedure and do a good job of obtaining evidence in all aspects. Without the relevant personnel of the electricity thief, they can't enter the electricity thief's home to check the electricity, so as not to cause unnecessary misunderstanding. With the continuous progress of science and technology, the means of stealing electricity are more and more diversified and scientific. Therefore, it is necessary to conduct technical training and experience exchange for electric power inspectors on a regular basis, continuously improve the technical level of electric power inspectors, support and control the trend of electric power theft in time, and better combat, stop and prevent illegal acts of electric power theft.
What are the common methods of tooth beauty? Generally, there are the following methods:
1. Tooth washing is the most basic method of tooth beauty.
It can remove dirt, dental calculus and other substances that affect the beauty and health of teeth.
2. Porcelain braces
It has a good cosmetic effect on some special dental diseases, such as tetracycline teeth, uneven incisors and large teeth gaps.
3. Orthodontics
If the teeth are irregularly arranged and fall out, they can be repaired beautifully by correction.
4. Drug tooth washing
It is not recommended to temporarily "bleach" teeth with drugs.
What are the common sound insulation methods? In urban family life, due to the dense houses and more traffic, all kinds of noise are hard to avoid. Therefore, in the process of modern home decoration, how to sound insulation and noise reduction has been paid more and more attention. Method 1: Use wooden furniture; The porous characteristics of wood furniture fiber make it the first among all kinds of furniture in noise absorption ability, which can effectively reduce the pollution caused by noise. Different kinds of wood have different sound absorption effects, and softer pine is better. In addition, in order to get the best noise treatment effect, it is best not to put wooden furniture in front of large glass cabinets and metal paintings. Because glass will reflect noise, metal will make sound wave vibration more obvious. Method 2: Sound insulation of door panels; Each door has a certain sound insulation effect, but the sound insulation effect is very different. The sound insulation function of the door depends not only on the sealing performance after closing, but also on the quality of the door panel. The sound insulation effect of the door panel mainly depends on the filler inside. Generally speaking, the filler of molded sound-proof door is a paper base with honeycomb structure, which can form a closed air layer and has good sound-proof effect. Inferior door panels are simply separated by cardboard in the hollow layer, and the sound insulation effect is very poor. In addition, if the inner core of the door adopts particleboard, the sound insulation effect is better. For solid wood doors and solid wood composite doors, the higher the density and weight of wood itself, the better the sound insulation effect of doors with thick door panels, and the easier it is to reduce noise pollution. Method 3: Use rough surface to reduce noise; The wall should not be too smooth, and the rough wall has good noise reduction effect. Too smooth walls will "bounce" sound waves, which is not conducive to noise reduction. Therefore, you can choose some decorative materials with good sound absorption effect such as tablecloths to stick on the wall, and you can also use decorative materials such as cultural stones to reduce noise. Rough walls can refract sound waves many times, which can effectively reduce noise. In addition, walls and ceilings can also be decorated with some sound insulation materials, such as mineral wool sound-absorbing boards. Method 4: fabric noise reduction; The use of fabrics is also a common way to reduce noise, such as curtains and carpets. Among them, the curtain has the best sound insulation effect. In addition, laying carpets can also play a very good role in noise reduction, which can eliminate footsteps and help people rest. Thick curtains can be used in the bedroom to reduce noise.