What is the reason for the mine pool sh being 0

1.

After the computing power of the whole network has been improved to a certain extent, the probability of getting rewards is too low, so that some geeks on "bitcoin talk" can develop a method that can combine a small amount of computing power and operate jointly, and use this method to build websites

in this mechanism, no matter how much computing power an indivial miner can use, as long as he participates in mining activities by joining the mine pool, no matter whether he has successfully mined effective data blocks, he can get a small amount of bitcoin reward through his contribution to the mine pool, that is to say, many people cooperate in mining, and the bitcoin reward is shared by many people according to their contribution

as of January 2019, the top five bitcoin pools in global computing power are btc.com, pool, antpool, flush pool, and f2pool. At present, about 70% of global computing power is in the hands of Chinese miners

extended data:

handling charge:

bitcoin miners will charge a small amount of fees for most transactions, the main purpose of which is to prevent people from sending a large number of boring small transactions and wasting network resources. At present, most of the handling charges for each transaction are & T 3647; 0.0001/kb (0.0001btc / KB). In fact, after 0.9.0, the default handling charge will be reced to & 3647; 0.00001/KB(0.00001 btc/KB)

because the amount of data occupied by most transactions is less than 1 kilobyte, generally speaking, the amount of data is less than 3647; 0.00001 (0.00001 BTC / KB) is enough. At the same time, in the future, when the bitcoin block rewards are less, the service charge will become the main source of miners' income, and the service charge of bitcoin will be related to the number of bytes occupied by the transaction

at present, the calculation standard of service charge in bitcoin system is not mandatory, so users can not give any service charge when the transaction is in progress

however, most miners usually give priority to the transaction with higher handling charges when building data blocks, so that they can get higher remuneration when mining is successful. Therefore, the transaction without any handling charges may take a long time to be processed and incorporated into the blockchain

in addition, e to the block capacity limit of 1MB and the recent increase in bitcoin transaction volume, the handling charges have increased significantly, and the waiting time for the transaction to be confirmed has also become much longer

2. As the computing level of the whole bitcoin network is rising exponentially, a single device or a small amount of computing power can not get the block reward provided by bitcoin network. After the computing power of the whole network has been improved to a certain extent, the low probability of getting rewards has prompted some geeks on "bitcoin talk" to develop a method that can combine a small amount of computing power and operate jointly. The website built in this way is called "mining pool"
because the probability of a single miner digging a block is very small, after all, it takes a lot of computing power to dig a block in 10 minutes. Even if there is such a large amount of computing power and the ability to dig, there are many competitors. So it becomes a game of 0 and 1. And the emergence of the mine pool is to break the 0 and 1 play. The computing power of a mine pool is a collection of many miners' computing power, which is far more likely than fighting alone. Every time you dig a block in the mine, you will be rewarded to the indivial according to the percentage of the calculation power of your mining machine in the total calculation power of the mine, and there will be no unfair situation.

3. If it can be operated, disconnect the signal cable of the weighing instrument and use the signal generator to give a signal (not zero). If the display still has?, It should be the configuration program

4. Under normal conditions, the natural water body is unlikely to have COD value of 0
even the bottled purified water used at home has a certain COD value, and the COD value of 0 is the result of the determination, so we might as well find out the reason from the experimental method. At the same time, the influence of possible interference ions in the sewage on the determination results was analyzed.

5. If you buy funds from CMB's savings card, please go to CMB's homepage www.cmbchina.com Click the "personal bank public version" on the right, enter the card number and password, and then log in. After entering, click the horizontal menu "investment management" - "fund" - "my fund" - "fund position" to check whether there are still positions
if you have a position and still can't redeem it, please call 95555-3 personal customer service-5-9 for manual detailed verification.

6. The spider capture frequency of the website suddenly drops to 0, indicating that the capture of the website is abnormal. The possible reasons are that the content of the website is relatively low quality, and the website is punished for collecting and so on. The outside chain of the website is too few.

7.

The IP of WAN port of router is 0.0.0.0, which is caused by setting error. The solution is as follows:

1. Open the web page, enter the web address, enter the home page of router, and log in the account

8. Check the instructions of your equipment to see what it means when the water content is below the minimum detection limit
generally, this may be an alarm of instrument failure, or it may be lower than the detection limit. Because different instruments have different settings, it's hard to say what it must be.

9. There are many conditions to be improved, and there are several for reference:
1. Chromatographic column. The column efficiency will be reced when the chromatographic column is used for a long time, which will affect the resolution. The improvement method is to replace a new chromatographic column. If it is a new column and the resolution is not good, a longer column can be used, which will also increase the resolution
2. Adjustment of the mobile phase: by adjusting the proportion of each component in the mobile phase, the polarity of the mobile phase will change, and the separation efficiency will be different, which needs to be determined according to the specific situation of the component to be detected
3. Changing the column temperature and increasing the column temperature under the same conditions will increase the separation ability of the column and improve the resolution.

10. This is the reason for text data. The processing method is as follows:
black the data column - Data - column - next step - next step - General - confirm