The summary and reflection of the knowledge points of coal mine surveying
The following knowledge points for coal mine surveying: 1. [Main mission: Accurately establish the measurement and control system above and below the well, timely and accurately map all kinds of mine maps, accurately mark the positions of various projects above and below the well, and study the law of movement of the surface and rock stratum.] 2. The measurement principles were as follows: First, from the whole to the part, from the high level to the low level, control first and then the small part; second, check step by step. 3. ** Special mining **: There are three types of mining in coal production, namely," under buildings, under the railway, under water, and above confined water." 4. ** Coordinates and elevation system **: The plane coordinate system of the Kuangqu uses the 1980 National Terrestrial Coordinates System; the elevation system uses the 1956 Yellow Sea elevation system. 5. ** Measuring error classification **: It can be divided into two categories: systematic error and accidental error. 6. ** Underground surveying personnel arrangement **: Generally, four people are needed, one for observation, one for recording, and one for front and back illumination. 7. ** Midline of the tunnel **: The geometric center line of the horizontal projection of the tunnel is called the midline of the tunnel. A set of centerlines should be extended for every 30m of excavation in the main tunnel and every 40m of excavation in the secondary tunnel. 8. ** Tunnel waistline **: It is used to indicate the direction of the tunnel in the vertical plane and adjust the slope of the tunnel floor or rail surface. 9. ** Underground Plane Control Category **: It is divided into two categories: basic control and mining area control. The basic control wires should be laid along the main tunnels of the mine. The basic control wires of each mine should be grade 7 "wires. Generally, they should be extended once every 300 - 500m, and a top orientation side should be added every 1.5 - 2km. The control wires of the mining area shall be laid along the top and bottom of the mining area, the middle tunnel, the mining area transportation road and the return air road. According to the length of the wing of the mining area, 15 "or 30" grade wires can be used respectively. The mining area wires shall be extended once every 30 - 100m along with the tunnel excavation. In the actual coal mine surveying work, it was also necessary to constantly reflect and improve: 1. In terms of the accuracy of the operation of measuring instruments, such as the application of total station and RTK instruments in the construction process, whether the accuracy could meet the needs of coal mine measurement, and whether the operators were proficient, they needed to continuously strengthen training and improve their skills. 2. In terms of measurement calculation, such as the calculation of earthworks and coordinates in the software course, it was necessary to check whether the calculation method was optimal, whether the calculation results were accurate and reliable, whether there were problems such as the accumulation of errors, and correct the shortcomings in the calculation process in time. 3. In the arrangement of surveying personnel, it was necessary to consider whether it was possible to arrange personnel reasonably according to the complexity of different measurement tasks, so as to improve work efficiency and ensure measurement quality. 4. From the perspective of the measurement system, whether the measurement principles were strictly followed, whether the overall planning of the measurement was reasonable, whether the inspection of each link was in place, and whether the measurement errors affected the safety and planning of coal mine production. Read more exciting novels for free
Reflection on the fire control in coal mine
Fire control in coal mines is very important. The following are some reflections on fire control in coal mines: ** 1. Safety Awareness Level ** 1. ** Overall degree of importance ** - All personnel of coal mining enterprises must deeply understand that fire protection work is not a dispensable subsidiary work, but a key link related to the survival of the enterprise, the safety of personnel and social stability. From managers to ordinary employees, they should integrate fire protection awareness into their daily work thinking. They should not only pay attention to it when accidents or inspections occur. For example, some coal mine fire accidents showed that some employees might have a fluke mentality and were not fully aware that the fire hazard could cause serious consequences at any time. 2. ** Awareness of individual responsibility ** - Every person working in the coal mine had a clear responsibility for fire control. The manager should be responsible for establishing a sound fire management system, arranging regular inspection and maintenance of fire protection facilities, organizing fire protection training for employees, etc. Ordinary employees had to abide by fire safety regulations, such as not using electrical equipment in violation of regulations and not connecting wires without permission. However, in actual work, there may be some employees who neglect their own responsibilities and are unfamiliar with the location and usage of fire protection facilities, which reflects the lack of individual responsibility. ** 2. Management and System Level ** 1. ** Perfection of the management system ** - The fire management system of coal mining enterprises should cover the management of fire facilities, personnel training, emergency plans and other aspects. However, some companies may have loopholes in their systems, such as incomplete inspection records of fire protection facilities or lack of countermeasures for new fire safety risks (such as fire risks brought by new electrical equipment). This required the company to constantly review and improve the fire management system to ensure the comprehensiveness and effectiveness of the system. 2. ** Management Execution ** - Even if there was a perfect fire management system, it would be empty talk if it was not implemented properly. In some coal mining enterprises, there may be situations where the inspection of fire protection facilities went through the motions and the punishment for violating the rules was not strict. For example, in some inspections, it was found that the fire protection facilities were damaged but not repaired in time. This reflected the problem of management implementation, and the system was not really implemented in every aspect of the actual work. ** 3. Equipment and Training Level ** 1. ** Fire-fighting facilities and maintenance ** - The coal mining enterprise should be equipped with sufficient and effective fire protection facilities according to its own environmental characteristics, such as fire extinguisher, fire extinguisher, automatic fire alarm system, etc. However, in reality, there may be problems such as aging fire protection facilities, insufficient number, or unreasonable location. Moreover, the maintenance of the fire protection facilities was also crucial. The lack of regular maintenance would cause the fire protection facilities to be unable to function normally in the event of a fire. 2. ** Firefighting training for personnel ** - The employees of coal mining enterprises needed to receive comprehensive fire protection knowledge training, including fire prevention, early fire fighting, evacuation and other knowledge. However, some companies may have shortcomings in terms of training content and training frequency. For example, employees might not be familiar with how to properly use a fire extinguisher to extinguish a fire in the early stages of a fire, or they might not know how to organize a safe evacuation, which reflected inadequate fire training. ** IV. Emergency response level ** 1. ** Perfection of the emergency plan ** - The coal mining enterprise should formulate a perfect fire emergency plan, which should clarify the responsibilities of each department and personnel in the event of a fire, as well as evacuation routes and rescue measures. However, in actual situations, there may be problems such as the lack of targeting of the emergency plan and the lack of optimization according to the actual layout of the coal mine and the distribution of personnel, resulting in the inability to effectively implement the emergency plan when the fire occurs. 2. ** The effectiveness of emergency drills ** - It was not enough to just formulate an emergency plan. Regular emergency drills were also needed. Although some coal mining enterprises have carried out emergency drills, there may be situations such as formalization of drills and unrealistic drill scenes, which cannot really improve the emergency response ability and response level of employees in the event of a fire. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reflection on major coal mine accidents
The following are some reflections on major coal mine accidents: ##1. From the perspective of ideology 1. ** Prioritize Safety ** - Safety in production was the foundation of coal mine work. It was related to the safety of every coal miner and the survival and development of coal mining enterprises. Safety production must always be placed first, regarded as an unshirkable responsibility and mission, so that safety awareness was deeply rooted in the heart, and the string of safety was always tight. - In the coal mine production process, safety must not be neglected because of the pursuit of production speed or economic benefits. For example, in some accident cases, it was often because the relationship between safety, production, and economic benefits was not properly handled, which led to the occurrence of tragedies. 2. ** Overcome your fluke mentality ** - Many accidents were due to the employees 'wishful thinking, thinking that a violation or non-compliance would not cause an accident. But in fact, every safety detail could not be ignored, and every negligence could lead to a disaster. He had to completely abandon the idea of "seeking temporary happiness, hoping for luck, and fearing trouble", firmly establish a sense of safety, and strictly abide by the rules and regulations. ##2. Safety Management 1. ** Establishing a sound management system ** - The coal mining enterprise needed to establish a perfect safety production management system, clear the responsibilities of each position, and use the system to manage people and supervise management. It was to ensure that everyone had something to do and everything was managed, and it was implemented layer by layer. For example, in terms of accident prevention, the system should cover all aspects from equipment inspection, employee operation standards to emergency response. 2. ** Strengthening on-site safety management ** - On-site safety management is the key to ensure the safety of coal mine production. The management personnel should strengthen the supervision of the coal mine production site, and promptly discover and correct the unsafe behavior of the employees, such as the "three violation" phenomenon of illegal command, illegal operation, and violation of labor discipline. At the same time, it was necessary to ensure that the production equipment was in good operating condition, and to investigate and eliminate potential safety risks in a timely manner. 3. ** Carry out the production safety responsibility system ** - The effective implementation of the safety production responsibility system is an important guarantee for preventing accidents. From the top management to the basic employees, everyone had to be clear about their responsibilities in production safety. In the event of an accident, they could be investigated according to the responsibility system, so that every employee would actively fulfill their safety responsibilities. ##3. Staff Training and Education 1. ** Increase safety awareness ** - The coal miners were the main body of coal mine safety production, and their safety awareness directly affected production safety. The enterprise should regularly organize coal mine workers to carry out safety production education and training, so that they deeply understand the importance of safety. By watching accident warning educational films and learning accident cases, they should pay enough attention to safety in their minds. 2. ** Increases safety skills ** - In addition to improving safety awareness, coal miners also needed to master the necessary safety skills. The company should provide relevant technical training to its employees, including news, technology, materials, and processes related to coal mine production, so that they could familiarize themselves with the basic knowledge and operating procedures of safety production, strengthen their awareness of safety production and self-defense measures, and understand what their duties were, what they should do, what they should not do, and what they should pay attention to. ##IV. Emergency Rescue Ability Building 1. ** Perfect the emergency plan ** - The coal mining enterprises should establish and improve the emergency rescue plan. The plan should be aimed at all kinds of accidents that may occur, such as roof accidents, mechanical and electrical accidents, fire accidents, etc., and clarify the Incident Response Service process, the responsibilities of each department and personnel, etc. 2. ** Strengthening the construction of emergency response teams ** - Set up a professional emergency rescue team and conduct regular training and drills. Through the drill, the actual combat ability of the emergency rescue team was improved to ensure that in the event of a coal mine accident, the rescue could be carried out quickly and effectively to reduce the losses caused by the accident. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Is it safe to use coal or mine in the Loutian coal mine?
Open pit coal mines should use mine safety certification. The coal safety certification was applicable to underground coal mines, while the mine safety certification was applicable to other metal or non-metal mines that were not coal mines. The open-pit coal mine belonged to the category of non-coal mines, so the mine safety certification should be used. If you want to know more about the follow-up, click on the link and read it!
Concept of coal mine production capacity, understanding and reflection on teaching plan
** 1. Teaching plan ** #(I) Teaching objectives 1. knowledge objectives - Let the students understand the concept of coal mine design production capacity and approved production capacity. - To help students grasp the differences and connections between the two. 2. ability objective - Through case studies, students will be trained to use concepts to judge whether the coal mine production is in compliance. - To improve the students 'ability to analyze the relationship between coal mine safety and production capacity. 3. emotion goal - To enhance the students 'understanding of the importance of safety in the coal mine industry. - Cultivate students 'rigorous attitude towards the concepts related to coal production. #(II) Difficulties in Teaching 1. ** Main point ** - Clearly define the design production capacity and the approved production capacity. - Explain the significance of the two in coal mine production management. 2. ** Difficulty ** - How to make students understand the changing factors of production capacity and their influence on two kinds of production capacity. - Guide the students to accurately determine whether the coal mine has superpowers or not in actual cases. #(3) Teaching Method Lecturing, case analysis, group discussion #(IV) Teaching process ## 1. Introduction (5 minutes) By describing the recent news of coal mine accidents (such as the Pingdingshan coal mine accident in Henan Province, etc.), the importance of coal mine production capacity management was introduced, and then the theme of this lesson was introduced-understanding and understanding of the concept of coal mine production capacity. ## 2. Design and production capacity explanation (10 minutes) - "Description: The designed production capacity refers to the production capacity determined by the legally approved coal mine design, the construction unit based on the completion of the construction, and the acceptance of qualified production capacity. - For example, if the production capacity of a coal mine was determined to be 0.6Mt/a during the design, this value had been determined at the beginning of the coal mine construction. It was based on the comprehensive design of the coal mine's resource reserves, mining conditions, mine layout, and other factors. - The influencing factors include the results of geological exploration (such as the thickness of the coal seam, reserves, etc.), the method of mine development (vertical shaft, inclined shaft, etc.), the level of mining technology and equipment, etc. ## 3. Explanation of the approved production capacity (10 minutes) - "Description: The approved production capacity refers to the production capacity that has been re-verified according to the coal mine production capacity management method due to the changes in the geological, production technical conditions, and coal mining methods, and finally reviewed and confirmed by the department responsible for the coal mine production capacity verification. - For example, a coal mine was originally designed to have a production capacity of 1.2 million tons/year. However, due to changes in geological conditions (such as encountering complex geological structures such as faults) or improvements in coal mining methods (changing from traditional coal mining methods to more efficient coal mining methods), the production capacity has changed. After re-approval, the approved production capacity has become 700,000 tons/year. - Affected factors: geological changes (such as geological structure, coal seam occurrence conditions, etc.), production technology improvement (such as mining equipment upgrade, mining process optimization), coal mining method adjustment, etc. ## 4. The differences and connections between the two (10 minutes) - distinction - The production stages were different: the design production capacity was determined in the design stage before the construction of the coal mine, while the approved production capacity was re-determined during the production process of the coal mine due to various changes in conditions. - The focus of the influencing factors was different: the design of production capacity was more concerned with various factors in the initial ideal state, while the approved production capacity was more concerned with the actual changes in the production process. - relation - The approved production capacity was an adjustment and supplement to the designed production capacity, which was used to rationally plan the scale of coal mine production. - Both of them were important indicators in the production management of coal mines, which had an important impact on the safety of production, personnel allocation, and economic benefits of coal mines. ## 5. Case Study (15 minutes) - Give some practical cases of coal mine production (such as Shaanxi coal mine production related cases), let the students group to discuss whether there is a situation of coal mine production. - The content of the case included the design production capacity, approved production capacity, actual output and other data of the coal mine, as well as relevant production technical conditions and management measures. - Each group sent a representative to speak, explaining the group's judgment and analysis process. The teacher would comment and summarize to strengthen the students 'understanding and application of concepts. ## 6. Wrap-up (5 minutes) - Review the concepts, differences, and connections between design production capacity and approved production capacity. - It was emphasized that the correct understanding and application of these two concepts were of great significance to the safe production and sustainable development of coal mines. ## 7. Homework arrangement (5 minutes) Ask the students to collect an example of coal mine production, analyze the design production capacity and approved production capacity, and determine whether there is a risk of superpower production. Write an analysis report. #(5) Teaching Reflection ## 1. the key of success - By using case studies and group discussions, the students 'enthusiasm and initiative were effectively mobilized and their participation was increased. - Through the explanation of practical cases, the students could understand the abstract concept of production capacity more intuitively. In the process of discussion and analysis, the students 'thinking ability and teamwork ability were trained. - The arrangement of the teaching content went from the concept explanation to the analysis of differences and connections, and then to the application of cases. It progressed step by step, in line with the students 'cognitive laws. ## 2. deficiencies in - When explaining the factors that influenced the design production capacity and the approved production capacity, some of the factors were not explained in depth enough, which might cause some students to have difficulty understanding. - In the group discussion session, the discussion direction of individual groups deviated. The teachers needed to further strengthen their guidance to ensure that each group could carry out effective discussions around the teaching objectives. - For some students with poor foundations, not giving enough attention and targeted guidance during the teaching process might affect their mastery of the teaching content. ## 3. improvement measure - In the future teaching, the influencing factors of the concept should be further analyzed in depth, combined with more actual data and pictures to explain in detail to help students better understand. - Before the group discussion session, the requirements and direction of the discussion should be given more clearly, and the inspection and guidance should be strengthened during the discussion process to correct the deviation of the group discussion in time. - Pay attention to the individual differences of students, give more attention and guidance to students with poor foundations in class questions, homework assignments, etc. If necessary, individual tutoring can be carried out to improve the learning effect of all students. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Safety Management of Coal Mine and Reflection on Failure of Electric Equipment Explosion
The safety management of coal mine is a key link in coal mine production, and the failure of electrical equipment is a problem that needs to be paid attention to in coal mine safety management. ** I. Reason for the failure of electrical equipment ** 1. ** Equipment quality and handling issues ** - Some of the electrical equipment was of poor quality, and it was easy to cause internal explosions during operation, which would then detonate the flammable gas in the mine. If the coal mining company did not do a good job in equipment quality inspection, it might cause equipment with quality problems to enter the production site, bringing safety risks. - During the transportation process, if the management was not good, the electrical equipment would be knocked, and the outer shell would have pits and scratches. Its original explosion-proof effect would be lost, and it would be easy to cause a loss of explosion during operation. 2. ** The lack of usage process management ** - The working environment in coal mines was harsh, with a lot of dust and moisture. The outer shell of electrical equipment was easy to fall off and rust, affecting normal operation and explosion-proof performance. - Without professional management, the wrong operation of the staff and the problems of the equipment could not be discovered in time, which would easily lead to the problem of explosion failure and hinder the safe and smooth operation of the underground operation. 3. ** Poor maintenance work ** - Many coal mining companies simplified the mining process in pursuit of economic benefits, and the maintenance of electrical equipment was difficult to carry out effectively. If the equipment failed in a harsh environment and could not be solved in time, the failure would continue to worsen until it failed to explode. 4. ** The overall quality of the staff is relatively low ** - Some of the staff had low comprehensive quality and could not find faults in the operation of the equipment in time. The company was unwilling to organize training and education, making it difficult for the professional level of the staff to be improved. The awareness of safety production was weak, and the wrong operation was frequent, which led to the failure of electrical equipment and caused safety problems. ** II. The measures that should be taken by the coal mine safety management against the failure of electrical equipment ** 1. ** Strengthening Equipment Management ** - The coal mining company must recognize the seriousness of the problem of electrical equipment failure and send professional management personnel to the site to manage the equipment. The management personnel must correct the wrong operation of the staff in time to ensure that the operation meets the specified specifications. - After the installation of the equipment was completed, professional technicians were required to check the installation quality to ensure the stable and safe operation of the equipment. 2. ** Strengthened maintenance ** - Increase the requirements for the maintenance personnel of electrical equipment and establish a high-level maintenance team. The maintenance personnel should check the equipment in time and repair it in time if they find any problems. They should ensure that the equipment is maintained in time to extend its service life and avoid failure. - For faulty equipment, the maintenance personnel had to accurately locate the fault and solve it. If the fault could not be solved, the relevant production work should be suspended until the fault was properly solved or the equipment was replaced. 3. ** To improve the overall quality of the staff ** - The coal mining enterprises should regularly organize their staff to participate in education and training to improve their professional level. At the same time, they should cultivate safety awareness so that the staff could consciously produce safely and report problems in a timely manner. - We will improve the electrical equipment management system and responsibility system, encourage the staff to raise their own requirements, complete their tasks seriously and responsibly, ensure the safe and stable operation of the equipment, and prevent the loss of explosion. 4. ** Installs self-test instrument for explosion failure ** - Coal mining enterprises could install self-inspection devices for electrical equipment to detect the risk of equipment failure in advance and reduce the possibility of explosion accidents. In order to ensure the safety of coal mine production, the problem of electrical equipment failure in coal mine safety management needs to be reflected and improved from the equipment itself, personnel operation and management, maintenance and other aspects. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reflection on major coal mine accidents, how to write a good essay
The following are the main points of a essay on the reflection of a major coal mine accident: ** I. Introduction ** 1. Explain the heavy consequences of the coal mine accident, such as casualties, broken families, and heavy losses to the business. He mentioned the recent coal mine accident case to emphasize the need for reflection. 2. It expressed a deep understanding of the importance of coal mine safety production and pointed out that coal mine safety production was related to the lives of miners, family happiness and the survival of enterprises. ** 2. Main Part ** 1. at the level of consciousness - It was emphasized that safety in production should be highly valued and regarded as the primary task. It explained that the lack of safety awareness was one of the root causes of accidents. For example, in some accidents, miners or managers were lucky and careless about safety work. - It was stated that safety production should be regarded as a responsibility and mission, and the safety string should be tightened at all times without any slack. 2. Safety education and training - It was pointed out that coal miners were the main body of safety production, and their safety awareness and skill level were very important. The enterprise should regularly carry out safety production education and training, so that miners can fully grasp the knowledge of safety production and improve their safety awareness. - It showed that safety education and training could not only improve the miners 'ability to cope with danger, but also change their attitude towards safety work. 3. Safety production management - It emphasized the importance of establishing a perfect safety production management system. The system should cover all aspects, from the underground operation process to equipment maintenance, to ensure that all work has rules to follow. - Pay attention to site safety management and strictly implement the safety production responsibility system. Management personnel at all levels should clarify their responsibilities in safety management, strengthen the safety supervision of miners, and promptly investigate potential safety risks. - For example, some accidents were caused by the chaotic management of the scene and the lack of implementation of the responsibility system, resulting in the failure to discover and eliminate hidden dangers in time. 4. Emergency rescue capacity building - The significance of establishing a sound emergency rescue plan for coal mining enterprises is elaborated. The plan should include the countermeasures and evacuation plans when the accident occurs. - It was emphasized to strengthen the construction of emergency rescue teams and improve their emergency rescue capabilities. The emergency rescue team should have the ability to respond quickly and rescue efficiently to reduce the losses caused by the accident. ** 3. The conclusion ** 1. He summarized the results of the reflection on the coal mine accident and emphasized the importance of safety in production again. 2. He expressed his determination to start from himself, strictly abide by safety regulations in his work, and actively participate in and promote the safety production of coal mines, contributing to the safety of miners and the stable development of the company. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A summary of knowledge points on vaporizing and vaporizing
1. ** Gaze ** - ** definition **: The phase change process of a substance from liquid to gas. - ** Form **: - ** Evasion **: - It was a phenomenon of vaporizing on the surface of the liquid. - It could happen at any temperature. - Liquid needed to absorb heat when evaporating. The higher the temperature, the larger the surface area, and the better the ventilation, the faster the evaporating. At the same time, the evaporating of the liquid was also related to the humidity of the air. The higher the humidity of the air, the slower the evaporating. During the evaporating process, the temperature may drop, and it has the effect of heat absorption and cooling. - ** Boiling **: - At a certain temperature, the liquid inside and on the surface of the liquid would simultaneously undergo intense vaporizing. - When a liquid boils, it needs to absorb heat. The temperature at which it boils is called the boiling point. Under standard atmospheric pressure, the boiling point of water is 100 ° C. The boiling point increases with the increase of external pressure. The boiling point of different liquids was generally different, and the boiling point of the liquid was also related to the air pressure on the liquid surface. The boiling point increased when the pressure increased, and the boiling point decreased when the pressure decreased. - ** The application of vaporizing **: vaporizing absorbs heat (absorbing heat from the outside world or oneself) and has a cooling effect. For example, a refrigerator works based on this principle. 2. ** Liquefaction ** - ** definition **: The process of a substance changing from a gaseous state to a liquid state will release heat to the outside world. - ** Realization Method **: - Lower the temperature (applicable to all gases and temperatures). - Compressed volume (Some gases are at a certain temperature, usually at room temperature. Special gases must be cooled down first before compressing the volume). Any gas can be liquefied when the temperature is low enough. At a certain temperature, the compressed volume of the gas can also make some gases liquefied (or both methods are used). However, if the gas temperature is higher than its critical temperature, the compressed volume cannot make it liquefied. - ** The practical application of liquefied gas **: Compared to gas, liquefied gas can reduce the volume (the volume is 1/1000 of the volume of gas), making it easy to store and transport. 3. ** The difference between vaporizing and vaporizing in physics ** - ** Material form change process **: The vaporizing process is the process of changing a substance from a liquid state to a gaseous state, and the vaporizing process is the process of changing a substance from a gaseous state to a liquid state. - ** Heat Requirement **: Liquefaction is an exhalation process, while vaporizing is an absorption process. - ** Realization method **: The two ways of liquification are to reduce the temperature and compress the volume. The two ways of vaporizing are to evaporate and boil. The novel "Watching the Moon on Fish Island" is equally exciting. Everyone is welcome to click and read it!
A summary of the knowledge points on the spread of microorganisms
There were several ways to spread microorganisms and related knowledge points: 1. * * Simply spread ** - This was a physical diffusing effect, driven by the concentration difference or potential difference between the inside and outside of the cell. Solute molecules spread from areas with high concentration to areas with low concentration. The cells passively received substances, which was considered passive absorption. This process did not consume energy. - Gas, water, and fat-dissolved substances enter the cell in this way and stop entering when the concentration inside and outside the cell is equal. However, due to the continuous consumption of the substances in the cells, the concentration of the substances inside the cells was always maintained at a low level. Therefore, the substances outside the cells could continue to enter the cells, but the speed was slow. For example, E. Coli absorbed Na ions in this way. Its characteristics included the difference in concentration of substances entering the cell, no consumption of energy, no specific, and the transported substances did not react with the substances on the membrane and did not undergo chemical changes. 2. * * Promotion of spread ** - It was also driven by the concentration of the substance, but with the participation of membrane carriers (also known as carrier protein), it acted as a "ferry" to transport the substance from the membrane to the membrane. There were many types of protein on the membrane, which mainly played the role of the carrier. - The membrane carrier had a strong specialization. It did not change during the transportation process and could speed up the transportation of substances. Therefore, this carrier protein could be classified as an insect (commonly known as an osmolyte). There are many kinds of osmolytes in cells, and each of them can help transport at least one substance. During the transportation process, the membrane carrier had a strong affinity with nutrients outside the membrane. After the combination, the affinity decreased and the nutrients were released into the cell. 3. * * Restrictions on the spread of microorganisms ** - The spread of the colonies was restricted by many factors. The growth rate of the colony was closely related to the surrounding environmental conditions, including temperature, humidity, oxygen concentration, etc. Under different environmental conditions, the growth trend of the colony was different. 4. * * Special circumstances ** - In terms of the possible spread of microorganisms in space, research has found that Earth's microorganisms have the possibility of surviving and spreading in space. For example, the bacteria commonly found in the Earth's atmosphere had a tendency to expand in a short period of time under the simulated cosmic environment experiment of the International Space Station. After one year, it gradually lost its activity, and three years later, the colony was completely destroyed. Moreover, the outer layer of the colony's "corpse" formed a protective shell, and there was still undamaged DNA inside. The scientists speculated that a sufficiently large colony of microorganisms could survive in space for at least eight years, and Mars might be the limit for the spread of microorganisms on Earth. - In terms of the spread of drug-resistant genes in the environment, human activities such as the abuse of antibiotics, intensive farming, and domestic sewage discharge were intensifying the spread and transmission of drug-resistant genes in the environment, causing the population to be exposed to the environment polluted by drug-resistant bacteria. The increase and spread of multi-resistant bacteria made standardized treatment ineffective. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The summary and reflection of medical knowledge and small methods
The following is a summary and reflection of some common medical knowledge: ** 1. About drinking water ** 1. ** Traditional Misunderstanding ** - In the past, many people believed that they had to drink eight glasses of water a day, but in fact, the water needed by the human body was affected by many factors such as age, environment, exercise, weight, and so on. There was no scientific basis for the statement that eight glasses of water must be consumed every day. Drinking too much water could also cause harm to the body. For example, drinking too much water in a short period of time could lead to serious consequences such as cerebral edema. 2. ** Correct approach ** - It was more suitable for ordinary people to drink 200 - 250 ml of water each time, and it was better to drink about two hours apart. Drink a small amount of water before and after meals to soothe your stomach. ** 2. Drinking ** 1. ** Traditional Misunderstanding ** - In the past, people might have thought that blushing after drinking meant that they could drink more, but in fact, blushing after drinking was a sign that the body lacked the alcohol. Alcohol was difficult to be digested, and long-term drinking could easily lead to diseases such as esophagus cancer. 2. ** Correct approach ** - People who blush when drinking should reduce the amount of alcohol they drink. If they blush when drinking, they should stop in time to avoid unnecessary harm to the body. ** 3. Dealing with the Cold ** 1. ** Traditional Misunderstanding ** - In the past, the public believed that people should take cold medicine immediately when they had a cold. Many health experts and medical institutions had similar opinions. 2. ** Correct approach ** - In fact, even if a small cold did not take medicine to intervene, the virus would usually die on its own in 5 - 7 days, because the real killing of the bacteria was the immune system. ** IV. Use of lipid-lowering drugs ** 1. ** Judgement based on different situations ** - If the total or low-density Lipoprotein was higher than 7.0 or 4.9, in addition to lifestyle intervention (diet control and appropriate exercise), they would also need to take statins. - When the low-density Lipoprotein Cholic is between 3.4 - 4.9, there is no cardiovascular and peripheral venous disease, high blood pressure, diabetes, and no plaque, actively change the lifestyle first. If it is still higher than 3.4 after 3 months, you need to take statins to lower the blood fat. - Statins are needed when your low-density Lipoprotein is higher than 2.6 and you have diabetes or high blood pressure. - For patients who have had a heart attack, a heart attack, a cerebral attack, or a heart stent bypass surgery, no matter how high their blood fat level is, they need to take statins to lower their blood fat and control their low-density Lipoprotein below 1.8. - If the level of tribulyceride exceeds 5.6, fibrate drugs should be taken immediately to reduce the risk of acute cholecystectomy. If the level of tribulyceride is between 2.3 and 5.6, accompanied by high blood pressure, diabetes, smoking, obese, or family history, diet control and appropriate exercise should be carried out first. If it cannot be controlled below 2.3 after 3 months, fibrate drugs should be taken. ** 5. Other aspects ** 1. ** Vitamin Tablets to prevent colds ** - Myth: Many people take vitamins during the change of seasons or during the high frequency of flu in the hope of preventing colds. - In fact, there is no evidence that vitamins are effective in preventing colds. 2. ** Weight loss medicine ** - Myth: Many people expect to lose weight through weight loss drugs. - In fact, there was no effective weight loss drug. The essence of weight loss was to make the energy intake lower than the energy consumed, that is, to control the mouth and walk. The only accepted medical intervention was gastric volume reduction surgery, which also reduced the intake of food by reducing the volume of the stomach. 3. ** Cataract medicine ** - Myth: Many people think that using eye medicine can reverse the progression of the disease. - In fact, the eye medicine used in clinical practice could only slow down the development and could not reverse it. Surgery was basically recommended for the treatment of Cataracts. 4. ** Natural and synthetic vitamins ** - Myth: Many people think that natural vitamins are better than synthetic vitamins. - In fact, there was no difference between the two, and the production and extraction process of natural vitamins was more likely to introduce pollution and impure substances. 5. ** Food counters each other ** - Myth: Many people believe in the theory of food restriction, such as the fact that calcium and calcium cannot be taken at the same time, which will affect absorption. - In fact, the human body was not a simple chemical reaction vessel. A normal balanced diet was enough. 6. ** Tonic to eat ** - Myth: Many people blindly eat supplements, thinking that there is no harm in eating supplements. - In fact, for some diseases (such as intestinal cancer and diseases related to overnutrition), eating supplements may aggravate the condition. It is necessary to eat supplements in a scientific manner. 7. ** Fruit Juice Health ** - Myth: Many people think fruit juice is healthy. - In fact, if you can eat fruits, try to drink less fruit juice, because the anti-inflammatory effect of the fruit juice produced by the machine is reduced by half or more, and after filtering the fruit residue, a lot of nutrients are lost. Reflecting on these misunderstandings and correct practices in medical common sense, it could be seen that the public was often easily influenced by traditional concepts and online rumors to form wrong medical perceptions. When dealing with medical knowledge, one should rely more on scientific research and the advice of professional doctors to avoid blindly believing unfounded statements to protect one's health. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The summary and reflection of the professional knowledge of fertilizer formulas
A fertilizer formulation technician was a person who worked on fertilizer formulation, fertilizer application, and effect evaluation. This profession was related to agriculture and was supported by the state. ** 1. Work content ** 1. ** Soil and Crop-related Work ** - To collect and prepare soil samples, analyze soil nutrients and other physical and chemical properties to evaluate soil fertility. For example, through professional testing methods to determine the content of various nutrients in the soil. - The design plan was to carry out field experiments and survey farmers 'fertilizer application, and to collect and analyze crop samples. This would help to understand the growth state of crops under different fertilizers. 2. ** Work related to fertilizer formula ** - Collate and analyze the data of soil testing, field experiments, and farmers 'investigations, and then formulate fertilizer formulas and propose scientific fertilizers. This required comprehensive data, considering factors such as soil and crop demand. 3. ** Work related to fertilizer quality and fertilizer application technology ** - Carry out the supervision and management of fertilizer quality, and evaluate the quality and effect of fertilizer. To ensure that the quality of fertilizers in the market meets the standards and can achieve the expected effect of increasing production. - Carry out scientific fertilizer technology testing, demonstration, and promotion, compile relevant technical information, organize technical training, and provide technical guidance and consultation. For example, they could promote new fertilizer technology to farmers and improve agricultural production efficiency. ** 2. Industry Development ** 1. ** Industry development trend and demand ** - At present, the fertilizer industry is showing a trend of diverse development, such as high-efficiency, specialization, refinement, convenience, friendliness, and integration of water and fertilizer. The demand for new fertilizers gradually increased with the development of agricultural technology. This required a large number of fertilizer formulas to create new fertilizers, so the market demand for this profession was large. 2. ** Number of employees and distribution ** - It is estimated that there are about 190,000 people in the fertilizer formula industry in the country, mainly distributed in the agricultural technology promotion industry (such as the national provincial, municipal and county soil fertilizer technology promotion agencies) and the fertilizer preparation and processing industry. ** 3. Profession Skill Enhancement ** There was a specialized "Skills Training Materials for a Nutrient Formulator", which was designed to improve the professional skills and professionalism of a Nutrient Formulator to meet the needs of modern agricultural development. [Reflection: ] 1. ** Technology Upgrade Challenge ** - With the continuous development of agricultural technology, fertilizer formulas needed to constantly update their knowledge and skills. For example, the development of new fertilizers might involve the application of new chemicals or biotechnology. Formulators needed to master this new knowledge to develop more scientific formulas. 2. ** Data accuracy requirement ** - The accuracy of the data was crucial when formulating the fertilizer formula. Whether it was soil test data or field test data, if there was a deviation, it might lead to unreasonable fertilizer formulas and affect crop yield and quality. Therefore, more rigorous operational procedures were needed in the process of data collection and analysis. 3. ** Communicate and collaborate with farmers ** - It was difficult to communicate and cooperate with farmers when promoting fertilizer technology and collecting the survey of farmers 'fertilizer utilization. The cultural level and planting habits of farmers were quite different. How to make farmers understand and accept the new fertilizer plan was a problem that needed to be solved. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>