In March, when we were just overwhelmed with amazement and ushered in the vernal equinox season, the farmers began to be busy in the fields, sowing, fertilizing, irrigating, and sprouting. It was indeed “plenty of spring†and farming was busy.†Today, the gold treasure planting experts follow the footsteps of apple farmers in northern Shaanxi, and walk into their apple tree garden in the spring equinox to see what the old farmers are doing. In the orchard in March, because of the climate in northern Shaanxi, there were still cold chills on the branches. However, the sprouts on each branch and the spring shoots rushing out on big branches all brought a slight warmth to the orchard. Every time before and after the vernal equinox, the old peasants went to the orchard to take care of their branches, because many years of experience told the old farmers that the Spring Garden would be good, and there would be fewer diseases and worms in the whole year. Today, the old farmer followed the experts of the Golden Baby to apply the microbiological fertilizer and nitrogen fertilizer for the fruit trees. The old farmer will adopt the simple fertilizer and water integration technology for fertilization management this year. The so-called fertilizer and water integration means that when topdressing, the fertilizer is dissolved in water, and the fertilizer and water are combined to be applied around the roots of the fruit tree. Here we look at how the old farmer operates: As the orchard is on the mountain, the old farmer uses a mechanical device that sprays medicine in an orchard that is easy to carry. It replaces the original spray gun with a top dressing gun, and then applies the chemical fertilizer, organic nitrogen fertilizer, and golden jewel microbial fungicide according to a certain amount. The formula is dissolved in water, pressurized by a drug pump, and the fertilizer is applied to the concentrated root layer of the fruit tree with a top-dressing gun. According to the size of the fruit tree, 4 to 16 top dressing holes are per tree, and each tree is chased with 4 to 15 kg of fertilizer water. The topdressing location should be in the projection of the crown extension, top dressing depth of 20 to 30 cm. (At the time of topdressing, attention should be paid to the following: First, for orchards with weak tree vigor, rot disease, and large amount of fruiting fruits, fertilizers can be top-dressed twice in succession at intervals of two weeks; second, the orchards used for farmyard manure in successive years are more likely to be caused by underground pests. In many cases, insecticides can be added to the fertilizer. In addition, depending on the severity of the rot disease, fungicides can be added to the fertilizer. After one day of work, the weather became dark and the old farmers had planted fruit trees for many years. They have a set of own methods for key techniques such as apple tree branch bud management and layering and ring cutting. The old farmer picked up a fruit tree around him to start a demonstration of the management techniques of the branches: The branches with particularly prosperous growth need to cooperate with the sprouting technique to promote the formation of the constrained shoots. The larger branches can be stretched, the angle of the branches opened, the introduction of light into the interior, and the growth of the main branch through the angle of the main branch to control the growth; for the upper branch, Appropriate removal; After the rest of the shoots have sprouted, the base is pulled down and fixed after branching. Pay attention to position the branch and spread out to avoid affecting the light. In addition, do not pull the stable small branches on the back so as to avoid back baldness and sunburn. Injuries; side branches should be based on the position and growth of branches, appropriate adjustment of the angle, so that the back obliquely, horizontally, obliquely and evenly distributed; especially the old and weak trees, we must pay attention to the growth advantage into the resulting advantages. The work of the old farmer was completed. We also learned some key technologies and recommended products. The old farmer's orchard uses its own fermented manure (using the Fertilizer Fermentation Fermentation Technology) every spring and fall. It also uses fertilizer this spring. The golden treasure microbial fertilizer, with the old farmer's own words is: Spring fertilization with the Golden Baby, his orchard this year's harvest certainly can not be worse. For details, please contact Beijing Huaxia Kangyuan Technology Co., Ltd. Telephone Toll Free Hotline The automatic biochemical analyzer is an instrument that measures a specific chemical composition in body fluids according to the principle of photoelectric colorimetry. Due to its fast measurement speed, high accuracy and small consumption of reagents, it has been widely used in hospitals, epidemic prevention stations and family planning service stations at all levels. The combined use can greatly improve the efficiency and benefits of routine biochemical testing. Bio Chemistry Analyzer, Clinical Chemistry Analyzer, Blood Chemistry Analyzer,Urine Chemistry Analyzer Jilin Sinoscience Technology Co. LTD , https://www.jilinsinoscience.com
principle
The automatic analyzer is to automatically run all or part of the steps of sampling, mixing, warm bath (37°C) detection, result calculation, judgment, display and printing results and cleaning in the original manual operation process. Today, biochemical tests are basically automated analysis, and there are fully automatic biochemical analysis systems designed for large or very large clinical laboratories and commercial laboratories, which can be arbitrarily configured according to the laboratory's testing volume.
Whether it is the fastest-running (9600Test/h) modular fully automatic biochemical analyzer today, or the original manual-operated photoelectric colorimeter for colorimetry, the principle is the use of absorption spectroscopy in spectroscopic technology. It is the most basic core of the biochemical instrument.
Optical system: is a key part of ACA. Older ACA systems used halogen tungsten lamps, lenses, color filters, and photocell assemblies. The optical part of the new ACA system has been greatly improved. ACA's beam splitting system can be divided into front splitting and rear splitting due to different light positions. The advanced optical components use a set of lenses between the light source and the cuvette to convert the original light source. The light projected by the lamp passes through the cuvette to bring the beam to the speed of light (unlike traditional wedge beams), so that the spot beam can pass through even the smallest cuvette. Compared with traditional methods, it can save reagent consumption by 40-60%. After the spot beam passes through the cuvette, the spot beam is restored to the original beam through this group of restoration lenses (wide difference correction system), and is divided into several fixed wavelengths (about 10 or more wavelengths) by the grating. The optical/digital signal direct conversion technology is used to directly convert the optical signal in the optical path into a digital signal. It completely eliminates the interference of electromagnetic waves to the signal and the attenuation in the process of signal transmission. At the same time, the optical fiber is used in the signal transmission process, so that the signal can achieve no attenuation, and the test accuracy is improved by nearly 100 times. The closed combination of the optical path system makes the optical path without any maintenance, and the light splitting is accurate and the service life is long.
Constant temperature system: Since the temperature of the biochemical reaction has a great influence on the reaction results, the sensitivity and accuracy of the constant temperature system directly affect the measurement results. The early biochemical instruments used the method of air bath, and later developed into a dry bath with constant temperature liquid circulation which combines the advantages of dry air bath and water bath. The principle is to design a constant temperature tank around the cuvette, and add a stable constant temperature liquid that is odorless, non-polluting, non-evaporating and non-deteriorating in the tank. The constant temperature liquid has a large capacity, good thermal stability and uniformity. The cuvette does not directly contact the constant temperature liquid, which overcomes the characteristics of the water bath type constant temperature being susceptible to pollution and the uneven and unstable air bath.
Sample reaction stirring technology and probe technology: The traditional reaction stirring technology adopts magnetic bead type and vortex stirring type. The current popular stirring technology is a stirring unit composed of multiple groups of stirring rods that imitate the manual cleaning process. When the first group of stirring rods is stirring the sample/reagent or mixed solution, the second group of stirring rods performs high-speed and high-efficiency cleaning at the same time. The set of stirring bars also undergoes a warm water washing and air drying process at the same time. In the design of a single stirring rod, a new type of spiral high-speed rotating stirring is adopted, and the rotation direction is opposite to the spiral direction, thereby increasing the stirring force, the stirred liquid does not foam, and reducing the scattering of light by microbubbles. Reagent and sample probes are based on the principle of early capacitive sensing, but slightly improved to increase the alarm of blood clots and protein clots, and re-test results according to the alarm level, reducing sample aspiration errors and improving the reliability of test results. . Large-scale biochemical instruments can detect more than 1,000 tests per hour, so automatic retesting is very important. Subjective evaluation of test results and manual retesting can no longer meet clinical needs.
Other aspects: barcode recognition of reagents and samples and computer login. Due to the lack of barcode recognition function of early biochemical instruments, there are more opportunities for errors. In recent years, both imported and domestic chemical instruments have adopted barcode detection. The use of this technology in biochemical instruments has provided technical support for the development of high-speed ACA, and also made the instrument quite supportive. The software development is simple and easy, therefore, barcode detection is the basis for the intelligence of the instrument. Open reagents, as an important factor for hospitals to choose models, whether the instrument supports open reagents is very important. After the reagents are opened, hospitals and scientific research units can choose their own reagent suppliers, and have a greater degree of freedom in measuring the price, the reliability of the test results, and the validity period of the reagents. Ion Selective Electrode Analysis Accessory (ISE), human serum and urine electrolyte indicators are very important, and hospitals can save money by adding ISE to the ACA system.