Miner score

1. It will affect the income
mining machine score M = (hardware capacity * hardware factor + bandwidth * bandwidth factor + storage value * storage factor) * (online ration / 24 hours); Total amount of currency issued on the same day = CT hardware capacity: CPU efficiency and memory size of mining machine. At present, the hardware capabilities of the first generation of player cloud are the same, with the capability values of 1, CPU factor weight of 20, memory factor weight of 10
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bandwidth: the uplink bandwidth measured by the trusted node. To encourage the participation of distributed nodes, the bandwidth factor is 10 at 1-8m, 5 at 9-20m and 1 at 21-100m; 100m or above shall be calculated as 100m; The step progressive algorithm is adopted (see the example below for details)

storage: the storage space that can be used for mining measured by the trusted node. In order to encourage users to share more of their idle storage resources, the storage value is set as 0200g-1000g when it is less than 200g, 1 when it is greater than 1000g, and 2 when it is greater than 1000g; The storage factor is 5

online time: the trusted node will sum up the effective online time of the previous day every day, calculate the score of the whole network and distribute the game coins

an example of mining machinery fraction algorithm:

when the bandwidth is 1m, the storage is 100g, and the online time is 12 hours
miner score = * (12 / 24) = 20
when the bandwidth is 8m, the storage is 300g, and the online time is 24 hours
miner score = * (24 / 24) = 115
when the bandwidth is 9m, the storage is 300g, and the online time is 24 hours
mining machine score = {1 * (20 + 10) + + 1 * 5} * (24 / 24) = 120
when the bandwidth is 20m, the storage is 500g, and the online time is 24 hours
mining machine score = {1 * (20 + 10) + + 1 * 5} * (24 / 24) = 175
when the bandwidth is 21m, the storage is 500g, and the online time is 24 hours
mining machine score = {1 * (20 + 10) + + 1 * 5} * (24 / 24) = 176
when the bandwidth is 100m, the storage is 500g, and the online time is 24 hours
mining machine score = {1 * (20 + 10) + + 1 * 5} * (24 / 24) = 255

2. The computing speed of Intel's latest i918 core processor should have reached the level of 1 trillion times per second
that is, more than 1000 gflops.

3. Dr. Dong's psychological counseling center in Shenyang is near Luwan, Heping District. My child's two-way emotional disorder is cured there. He can't learn. His mood is sometimes good and sometimes bad. He used to take medicine in the mental health center for more than a year, but he didn't get well. Later, he went there for psychotherapy and physiotherapy, and the price was not expensive.

4. Shaoyang railway station: referred to as Shaoyang station, local residents used to call it "Shaoyang South Station". The Huaihua Shao Heng railway under construction (speed 200 per hour) and the planned Hunan high speed railway (speed 350 per hour) are both introced into Shaoyang station. The old station buildings of Shaoyang station are planned to be reconstructed on a large scale ring the 13th Five Year Plan period. Shaoyang railway station is located in Daxiang district, Shaoyang City, Hunan Province. It is 108 km from Loudi station on the upstream and 111 km from Yongzhou station on the downstream. It is under the jurisdiction of Guangzhou Railway Group. The comprehensive building area of Shaoyang railway station is 11300 m2, and the waiting room area is 2891 M2. After expansion, it will have 5 sets of 13 lines, Luoyang Zhanjiang railway (the old Lou Shao railway section and Shao Yongtie section) Lou Shao express railway and Huai Shao Heng express railway under construction meet here.

5. Southwest Petroleum University's machinery graate student specialized only has the petroleum field machinery with the petroleum related! If not our school, and professional change, then generally do not get full public! What's more, you may lose a lot of knowledge in the exam! Scholarship, then the general proportion is still very high! It's just that the full amount of public money is not much! Baoyan is also more! It's usually about twenty people! Don't feel less! Mechanical and Electrical Institute undergraate number of only 400 people! This is what I know!

6. 1. Sound from the equipment: the sound from the ball mill mainly comes from the impact between the transmission mechanism itself and the medium ore liner in the cylinder. The intensity of the impact sound from the cylinder varies with the amount of material in the mill. When the balance is out of balance, the ball mill will be filled with high mass fraction slurry, the impact of medium, ore and lining plate will be weakened by viscous slurry, and the sound will be graally ll. When the "belly bulge" is serious, the sound inside the cylinder will become smaller and stuffy, and only the buzzing sound from other aspects can be heard. Therefore, from the change of sound intensity when the mill is working, it can be found that the ball mill is bulging
2. Measure the mass fraction and observe the ore discharge: the mass fraction and discharge volume of the normal working ball mill should be basically stable, but when it is about to swell, the mass fraction begins to rise, the discharge volume is also large, the particle size becomes coarse, and "spit before pull" appears. In serious cases, e to the large mass fraction, the poor fluidity will not be discharged, and the discharge will be stopped when it is completely "swelled". Therefore, swelling can also be found from the changes of mass fraction, particle size and discharge of the mill
3. Observe the current of the ball mill: when the ball mill is working, the current of the main motor should always swing in a small range, so it is not easy to have excessive amplitude. If the ball mill bulges at this time, the amount of materials in the mill will increase, and the space in the mill will be occupied by a large number of materials, so the range of medium activity will be less, and the center of gravity of the ball mill load will rise, that is, the distance away from the center of the ball mill will be reced, the resistance moment caused by eccentricity will be reced, the power required to overcome the resistance moment will be reced, and the total energy consumption of the equipment will be reced, The current reading reflected by the ammeter decreases. The more serious the bulging is, the more the current drops. When the grinding machine is bulging, it will drop to the lowest point. Therefore, once it is found that the current graally decreases in the work, it should be adjusted in time to prevent the ball mill failure.

7. I once saw a fairy tale:
there was a little boy named Kabu. When he went to buy a tape recorder, he found a tape recorder that could play the questions and answers of all the primary and secondary examinations from the first grade of primary school to the graation examination. Kabu immediately bought the tape recorder after discovering the secret. So he recited the answers before every examination, In order to get full marks in the next day's exam, he jumped quickly. His parents and teachers praised him hard. He got his doctorate at 15. After school, he didn't learn anything. Later, he went to work. At first, everyone tried to recruit him, but when he started the experiment, he could only recite the method, but he couldn't do it at all, He starved to death because he had no job.

Edison only went to primary school for three months in his life, and his knowledge came from his mother's teaching and self-study. His success should be attributed to his mother's understanding and patient teaching since childhood, which made Edison, who was originally regarded as an incompetent child, become a world-famous "king of invention" when he grew up
Edison was curious about many things since he was a child, and he liked to experiment with them himself until he understood the truth. When he grew up, he devoted himself to research and invention according to his own interests. He set up a laboratory in New Jersey and invented more than 2000 kinds of things in his life, such as electric lamp, telegraph, phonograph, video camera, magnetic ore separator, crusher, etc.

British John Gordon won this year's Nobel Prize in medicine for cell research. However, it is reported that geden's academic performance in middle school is not ideal. Biology is at the bottom of the 250 students in the same grade, and other natural science subjects are also at the bottom. Recently, the British "Daily Telegraph" revealed that the Nobel laureate had been called & quot; He is too stupid to study science at all<

Einstein, a famous physicist, was once regarded as & quot; Nothing can be done & quot; Franklin, the inventor of the lightning rod, never passed in mathematics at school< When Beethoven played the violin, his teacher said that he was by no means a writer

in his autobiography, Darwin, the author of the origin of species, revealed that all the teachers thought that I was mediocre and had nothing to do with intelligence

Russian writer Lev Tolstoy was dropped out of university because of his poor grades

British Prime Minister Winston Churchill once stayed in grade six of primary school<

Rodin, an artist, failed to enter the College of art after three examinations.

enough to write a composition,
please accept it

8. Mass fraction (pulp mass fraction) refers to the percentage of ore mass (dry weight) and total pulp mass (ore + water) in pulp, where mass fraction refers to the pulp mass fraction (grinding mass fraction) in grinding machine. Grinding mass fraction is an important factor that affects the proctivity of grinding machine. It determines the friction between grinding medium and ground material, pulp fluidity and effective density (density difference between medium and pulp). In the operation of the grinding machine, a higher grinding mass fraction is generally used, so that a layer of slurry can be attached to the surface of the medium, so as to enhance the grinding effect beneficial to the grinding. At the same time, there is a large amount of ore per unit volume in ore discharge, so the ore discharge is large. However, if the pulp mass fraction is too high, e to the increase of pulp density, the effective density, activity ability and striking effect of grinding medium will be weakened. At the same time, e to the high mass fraction, high viscosity, poor fluidity and rection of total ore discharge, the proctivity of grinding machine will be reced and even "bulge" will occur. Therefore, "high concentration" refers to appropriately increasing the grinding mass fraction within a certain range, which is concive to improving the grinding effect
return sand refers to the coarse-grained fraction returned to the mill by the classifier for regrinding ring closed-circuit grinding. The amount of return ore is often several times of the original ore feeding. The ratio of return sand quantity to raw ore feeding quantity is called return sand ratio. Practice has proved that the return sand ratio will directly affect the proctivity of the mill. The larger return sand ratio increases the total feeding capacity of the mill, thus increasing the discharge speed of the mill, shortening the residence time of materials in the mill and speeding up the circulation. In addition, although the returned sand is coarse-grained ore, it is finer than the raw ore after all, so the total feed particle size composition of the mill becomes finer, and the comprehensive results are concive to improving the proctivity of the mill. Figure 16 shows the relationship between the return sand ratio and the relative proctivity of the mill. It shows that the proctivity of the mill increases with the increase of the return sand ratio in a certain range (e.g. between 100% and 500%). When it reaches a certain value, the proctivity increase is very small, and the total feeding capacity of the mill is close to the maximum passing capacity, which is easy to cause ball mill swelling. Therefore, the sand return ratio should be kept stable and close to a constant value
there are two main meanings here: one is that the feeding speed (the amount of ore fed into the mill per unit time) is constant; The second is that the particle size composition of ore feed is uniform. In order to improve the grinding efficiency, the ore feed should be continuous, uniform and stable at a high level. More time and less time will make the mass fraction in the mill fluctuate frequently, which is not concive to the grinding process. Particle size segregation of grinding feed often occurs in the silo - fine in the middle and coarse around, which is easy to cause uneven feed composition. If the operation can not be adjusted in time according to the particle size, the "bulge" will appear. Therefore, multi-point discharging and feeding should be adopted as far as possible.

9. I think the main problem of the building is whether it really wants to enter the mechanical and Electrical Institute of our university. Because mechanical automation in our school, the focus is on mining machinery and downhole tools
oilfield machinery and downhole tools
it's not difficult to think about the exam well, and it's meaningless if you're not sure you've got it.

10. In closed circuit grinding, the coarse fractions separated by classification and returned to the grinding machine for regrinding are called circulating load (or return sand), which can be expressed in two ways: absolute quantity (T / h) and relative quantity (the ratio of return sand mass to original feeding mass, called return sand ratio or circulating load coefficient). As the suitability of the circulating load will directly affect the indexes of grinding operation, it should be measured regularly. There are two common determination methods:

(1) sieve analysis. The determination of circulating load by sieving analysis method is to screen and analyze representative samples from classifier feeding (mill discharge), return sand and overflow at the same time to obtain the percentage content (yield) of a certain calculation level (e.g. - 0.074mm) in the three procts. Then, according to the principle of in and out balance of the calculation level in the classification operation, it is calculated according to the following formula:

in the formula, -- in the classification feeding, the The yield of calculated grade (e.g. - 0.074mm) in overflow and return sand,%< (2) mass fraction method. Because the sieve analysis method needs sampling and sieve analysis, the cycle is long. Mass fraction method can be used for rapid determination in proction. The method is to determine the mass fraction of three procts (available mass fraction pot) by sampling from grading feeding, returning sand and overflow respectively. Then, it is calculated according to the following formula:

Where, - is the mass fraction or liquid-solid ratio of the three procts of classifier feeding, overflow and sand returning respectively.